CA2227783C - Article of footwear - Google Patents
Article of footwear Download PDFInfo
- Publication number
- CA2227783C CA2227783C CA002227783A CA2227783A CA2227783C CA 2227783 C CA2227783 C CA 2227783C CA 002227783 A CA002227783 A CA 002227783A CA 2227783 A CA2227783 A CA 2227783A CA 2227783 C CA2227783 C CA 2227783C
- Authority
- CA
- Canada
- Prior art keywords
- tongue
- article
- footwear
- upper body
- strap
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B11/00—Footwear with arrangements to facilitate putting-on or removing, e.g. with straps
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B7/00—Footwear with health or hygienic arrangements
- A43B7/14—Footwear with health or hygienic arrangements with foot-supporting parts
- A43B7/1495—Footwear with health or hygienic arrangements with foot-supporting parts with arch-supports of the bracelet type
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B7/00—Footwear with health or hygienic arrangements
- A43B7/14—Footwear with health or hygienic arrangements with foot-supporting parts
- A43B7/18—Joint supports, e.g. instep supports
- A43B7/20—Ankle-joint supports or holders
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43C—FASTENINGS OR ATTACHMENTS OF FOOTWEAR; LACES IN GENERAL
- A43C11/00—Other fastenings specially adapted for shoes
- A43C11/008—Combined fastenings, e.g. to accelerate undoing or fastening
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43C—FASTENINGS OR ATTACHMENTS OF FOOTWEAR; LACES IN GENERAL
- A43C11/00—Other fastenings specially adapted for shoes
- A43C11/14—Clamp fastenings, e.g. strap fastenings; Clamp-buckle fastenings; Fastenings with toggle levers
- A43C11/1406—Fastenings with toggle levers; Equipment therefor
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43C—FASTENINGS OR ATTACHMENTS OF FOOTWEAR; LACES IN GENERAL
- A43C11/00—Other fastenings specially adapted for shoes
- A43C11/16—Fastenings secured by wire, bolts, or the like
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43C—FASTENINGS OR ATTACHMENTS OF FOOTWEAR; LACES IN GENERAL
- A43C11/00—Other fastenings specially adapted for shoes
- A43C11/20—Fastenings with tightening devices mounted on the tongue
Abstract
An article of footwear (1) having an upper (4) connected to a sole (5), wherein an integrated tongue-strap (3 and 10-12) structure is provided for superior fit, durability, support and strength. The upper may be formed of at least two layers, including an upper body (4) having a heel portion (4a), an arch and instep portion (4b) and a toe portion (4d) for respectively receiving a heel, an arch and instep and toe of a foot of a wearer. The strap element (10-12) may penetrate the upper body (4), extend around the upper body (4) between those two layers (36 and 37) from medial to lateral sides of the article of footwear (1). The strap element (10-12) may be formed of one piece. In such a case, the footwear (1) is donned by loosening a tensioning device provided on the tongue (3) of the upper (4) or provided between at least one end of the one-piece strap element (10-12) and the tongue (4).
Description
W097/03581 PCT~S96/11983 ARTICLE OF FOO~WEAR
RAt'R-'R~l~D OF T~ , NVI ~ CJ~
~ he pre~ent invention relates generally to fooL~_ar, and particularly, footwear having enh~nced support f~ature~
;nt~rally designed into their construction. More specifically, the present inv~nt;on contr _l~tes use of an integrated tongue-strap structure adapted to apply even pressure around the foot and/or ankle of the wearer to provide ~nh~nce~ fit and ~u~o~.
Footwear designers have aspired to produce footwear having 8uperior fit and sup~ort. Nowhere is this more prevalent than in the athletic footwear industry as evi~n~e~
by various earlier footwear embodiments for basketball, jog~ing, football, etc., and even in ice-skating. In addition, there has been increa~ed attention to bicycling footwear, particularl~ to the quality of construction of the upper of bicycle footwear which is subjected to ~n~_ ~us force during the upward pulling stroke of the bicycle rider. Accordingly, the present invention also contemplates provision of an article of footwear having an upper which has superior durability and strength.
An example of athletic footwear having improved ~u~OL ~
features is shown in U.S. Patent No. 4,450,511 to Gamm. Gamm discloses a rllnn;ng shoe having an instep strap which extends through the midsole of a rllnn; ng shoe inside the body of the upper. Opposite ends of the strap have hook and loop fasteners, and the strap is intended to wrap directly around the foot of the wearer. However, the instep support strap according to Gamm suffers from numerous drawbacks. For example, the fit of the upper of the shoe is not largely enhanced by the strap, since it extends inside and directly surrounds the foot. In addition, the strap is likely to affect circulation through the foot, as pressure i~ not evenly distributed throughout a top or dorsal area of the foot. In e CA 02227783 l998-0l-23 W097/03S81 PCT~S96/11983 addition, the interior strap of Gamm requires bur~n~: ?
;p~l~t;~n by the wearer.
~ .S. Patent No. 4,972,613 to ~oveder disclose_ a rear entry athletic shoe using ~ ski-b;nA;n~ type e~hAn; which utilizes n adjustable strap that wraps around an aft portion of the shoe. This desi~n provides only marginal increased ~u~olL throu~h the upper.
U.S. Patent ~o. 5,243,772 to Francis et al. discloses n article of athletic footwear having increased support, by providing an integral ext~rn~l shell that wrap~ around a sock but i8 not connected thereto. The external shell of this invention is ti~htened around the sock and wearer~s foot by means of a conventional lace-type closure sy~tem connecting opposing edges of the shell, over a tongue portion of the ~ock.
However, a need still exists for additional ~u~o,L along the dorsal portion of the foot and superior fit around the ankle nd heel portions of the upper.
U.S. Patent Nos. 2,494,964 to Rome, 4,476,639 to Zaccaria and 3,613,271 to Geller disclose other ~hoe designs incorporating straps but cgnt; nl~e to fail to meet the rigorous ~r ~n~R of 8upport, fit and durability ~- ~n~ed by the marketplace. Of these patents, those to Rome and Geller utilize a strap secured to the tongue of a shoe. However, the 3traps are formed of essentially two segments which are separable from each other to allow the tongue to release and permit the wearer in ~onn; n~ or removing the shoe. The separable two-piece straps are particularly di~advantageous ~ince they do not provide adequate support and require bur~n~. ? manipulation. In addition, the straps merely ~t~n~
around an outer surface of the upper, perhaps through a pull tab strictly provided on an aft portion of the shoe upper as taught by Rome. Such structures do not provide ade~uate support.
WO97/03581 PCT~US96/11983 Eg~ARy OF ~ ~V~L1O~
The present invention has been developed to ~v~lc ~ the deficiencies of the prior art, and provide an article of foot-._~r having superior fit, strength, durability ~nd ~u~ ~.
According to the present invention, an integrated ton~ue-strap structure is provided to ~ive unparalleled ~olL, fit and durability. The strap which fully wraps around the upper body and which is integrated with the tongue, provides a glove-like fit, distributing pres~ure along a lower shin portion, a rear foot or ~nkle portion, a sub~t~nt;~l area of the dorsal surface inc7l7~ing the lateral and ~~;~1 sides, and sole portions of the foot, con~ntrically and controlled by an ; t of t~n~;nn ~pl;e~ to the straP.
According to a first aspect of the present inventio~, an article of footwear is provided, comprising an upper formed of at least two layers and including (i) an upper body including a heel portion, an instep portion and a toe portion for respectively receiving a heel, an instep, and toe~ of a foot of a wearer, and (ii) a tongue for covering the dorsal portion of the foot including the lateral and medial aspects thereof; a sole or other hardware connected to the u~per; a strap el~ - t penetr~ting the upper body and ext~n~;n~ between two layers of the upper body from medial to lateral sides thereof, the strap element having first and second opposite ends respectively secured to opposite lateral sides of the tongue to form an integrated strap-tongue structure; and tensioning means for adju~ting tension of the strap ~1 E - t .
According to a second aspect of the present invent;on, an article of footwear is provided, comprising an upper including (i) an upper body including a heel portion, an instep portion and a toe portion for respectively receiving a heel, an instep, ~nd toes of a foot of a wearer, and (ii) a tongue attached to the upper body, for covering a dorsal portion of the foot; a W097/03581 PCT~US96/11983 sole connected to the upper; a one-piece strap el ~ t having first and 8~c~n~ opposite end~ respectively secured to o~posite lateral sides of the tongue to form an integrated ~trap-tongue structure; Pnd tensioning means for adjusting tension of the strap element.
According to a third aspect of the invention, an article of fooL~_-~r is provided, comprising an upper including (i) an u~er body including a heel portion, an arch ~nd instep portion and a toe portion for respectively receiving a heel, an arch and instep and toes of a foot of a wearer, ~nd (ii) a tongue for covering the dorsal portion of the foot including the lateral and -~i Al aspects thereof; a sole or other hardware connected to the upper; a one-piece strap element ext~n~in~
between the upper body and the sole, the strap element including first and second opposite ends respectively secured to opposite lateral sides of the tongue to form an integrated strap-tongue structure; and tensioning means for adju~ting tension of the strap element.
According to the first aspect of the present invention, since the strap element extends between at 7 east two layers of the upper, around the upper body from q~;Al to lateral sides thereof, pressure around an ankle portion or heel portion (from e~;~l to lateral side~ thereof) i~ evenly distributed. In addition, since the strap penetrates the upper ~t~n~ therein through a substantial portion thereof so as to extend along a through-direction, orientation of the strap may be securely maintA;ne~ along a direction perpendicular to the throu~h-direction of the strap.
According to the second and third aspects of the pre~ent invention, an article of footwear which is easy to don without requiring ~eparation of straps via buckles, VELCRO or ratcheting mechanisms, thereby contributing to the superior support provided by the present invention. Tho~e advantages are realized by utilizing a one-piece strap, an extended WO97/03581 PCT~US96/11983 section of material which i~ not severable, ~uch as by an ~nt~ ~ te buckle or by a hook and loop fastener. The one-piece str~p may, ho.._v~ , be formed of ~ number of layers of the same or different materials, or suitable sections of different materials connected together ~o as to include reinforced portions, for example. According to the present inv~nt;on, a one-piece strap is effectively utilized while the prior art relie~ on severable ~traps to release the foot from the upper.
Preferably, the strap ~1 - t according to all ~spect~ of the present invention i8 free floating, that i8, is freely ~lidable between layers of the upper or between the up~er and the ol~tsole. According to thi~ part;c~1arly preferable feature, the relative po~ition of the tongue may be freely moved to conform to the dorsal portion o~ the foot of the wearer.
Preferably, a plurality of strap element~ are ~rovided. For example, in a high-top emboaiment of the present invention, ankle, heel and midfoot straps may be utilized, each of which i~ integrated with the tongue of the upper.
The present invention also cont~ tes a unique c;nrh;ng ech~n ;: , which may be adapted to tension the straps of the article of footwear according to the first, second and third aspects of the pre~ent invention. The cinching ech~n;sm include~ a device for pulling first and second members together, comprising a closed-loop cable connecting the first and second members to each other; first guiding means for guiding the cable through first and second symmetrically spaced-apart turns along the first member; second guiding means for guiding the cable through an opposing turn in the second member, wherein the cable forms a closed-loop consecutively extending through the first turn, the opposing turn and the second turn; and a ratchet including a plurality of juxtaposed grooves for receiving the cable, to fix a relative position of the first and second members with each other.
The present article of footwear is not limited to athletic footwear, but may include any article of footwear such as ice-skates, ski boots, bicycling foot-ear, h;k;ng boots, ~nd~ ls etc. In addition, the outsole may be formed for virtually any sport, and may be cleated for outdoor sports, have hl ~e~ for ice-skating, or have lugs for h; k;ng, etc.
RRT~F n~.~RTPTION OF T~R DRAWINGS
Fig. 1 is a lateral side elevational view of a first embo~; -nt of the present invention having closed c;nch;ng devices;
Fig. 2 is a lateral side elevational view of the first : ho~; - of the present invention disclosed in Fig. 1, having released c; n~h; ng devices provided between respective straps and the tongue;
Fig. 3 is a -A;~7 side elevational view of the first : ~o~; t disclosed in Fig. 1, having closed c;nch;n~ devices;
Fig. 4 is a partial cross-sectional view along line A-A
of Fig. 2 disclosing the arch and instep strap extending beL..e_~ the upper and midsole;
Fig. 5 is a partial cross-sectional view along line A-A
of Fig. 2 disclosing the arch and instep strap ext~nA;ng through the inside of the upper allowing for direct contact with the wearer's foot;
Fig. 6 is a partial cross-sectional view along line A-A
of Fig. 2 disclosing the arch and instep strap ext~nA;ng through rh~nn~l ~ in the midsole;
Fig. 7 is a partial sectional view disclosing the extension of the ankle strap of the first embodiment shown in Fig. 1;
Fi~. 8 is a lateral side elevational view of a second embodiment of the pre~ent invention disclosed in Fig.l providing c;n~h;ng devices on first and second elongated flange portions of the tongue;
Fig. 9 is a ~~;~1 side elevational view of the article of fooL~_ar disclosed in Fig.8 providin~ particularly firYt and second guide '-~ 8 of each c;n~h;ng device;
Fig. 10 is a lateral ~ide elevational view of a third embo~; ~nt of the present invention disclosed in Fig.l providing alt~rnAt;ve lacing hole8 on elongated flange portions of the tongue:
Fig. 11 is a ?~;~1 side elevational view of the ~rticle of foo~.Jear di~clo~ed in Fig. 10;
Fig. 12 is a partial cross-sectional view taken along line s-s in Fig. 10;
Fig. 13 is a partial sectional view along line C-C in Fig. 11, disclosing the structure of the ton~ue;
Fig. 14 is a lateral side elevational view of a fourth embodiment of the present invention disclosed in Fig.l providing alt~rn~t;ve c;n~h;ng devices for securing the ~traps to the tongue of an article of footwear;
Fig. 15 is a medial side elevational view of the fourth embodiment disclosed in Fig. 14, providing groove-forming -r8 for alternative c;n~h;n~ devices;
Fig. 16 is a lateral ~ide elevational view of a fifth embodiment of the present invention disclosed in Fig. 1, disclosing a low-cut or oxford style running shoe;
Fig. 17 is a ~ 1 side elevational view of the article of footwear disclo~ed in Fig. 16;
Fig. 18 is a schematic view of an alternative cinch device according to the present invention;
_ W097/03581 PCT~US96/11983 Figs. l9A and l9B are partial top and A~ide views of the connecting structures of the cinch device according to an : ~Oa- ~ of the present invF~nti~n; and Fi~s. 20A and 20B are partial top and side views of 5 alt~rn~t; ve cnnn~~cting structures of the cinch device according to an :; -'; - of the pregent inv~~n1~;on~
Fig. 21 is an exploded perspective view showin~ a l~yered structure of the u~per and sole including A~ol ~ and outsole.
n~CRIPTION OF AY~ EMBODIrr-- ~
Referring now to the drawingA~, a description of preferred embo~; -nts of the present invention is set forth. Sa~Ae reference als are utilized among the different to denote ~imilar structural features.
Figs. 1-3 illustrate a first embodiment, showing first, second and third aspects of the present inv~nt;on. An article of footwear 1 is provided, comprising an u~per 2 which ;nC~ e~
tongue 3 and upper body 4. In this embodiment, the tongue includes a tongue overlay 3a and a tongue inner 3b. Inner surfaces of tongue overlay and tongue inner 3a, 3b may include padded closed cell foam, to provide added stability and comfort. Preferably, tongue inner 3b has a dorsal extension fc- ;n~ shin ~u~pOl~ 3d which aids in ~nnn;ng or ~. ving the article of footwear, di5cussed below. Upper body 4 includes heel portion 4a, instep portion 4b, arch portion 4c and toe portion 4d which respectively wrap around aAnd receive the heel, instep and toes, respectively, of the foot of the wearer. The first embo~ nt of the present invention shown in Figs. 1-3 discloAses high-top or mid-height athletic footwear that provides additional support to the wearer around ankle portion 4e which receives the ankle of the wearer. A sole 5 is W097/03581 PCT~S96/11983 connected to upper body 4 and is adapted for contacting a ground surface. In addition, a midsole 30 may be further provided be~e~n the outsole 5a and the upper 2, illustrated in Figs. 4-6.
The ~ ho~; t shown in Figs. 1-3 preferably includes an ankle strap 10, a heel strap 11, and an arch and instep strap 12 which ~t~n~ around the u~per body and has opposite ends connected to the tongue 3, part;c~ ~ly to the tongue overlay 3a at flanges 8 along ~;~1 and lateral aspects thereof. Each of ankle strap 10 and heel strap 11 penetrate~ into the upper body, and extends between first and second layers 36 and 37 (shown in Fig.'7) around a substantial portion of the upper body, between medial and lateral sides thereof. Another preferable feature of the present article of footwear includes ankle and heel straps 10 and 11 that are freely ~ hle within the upper body 4, which a~~ord~ the wearer personalized adjustability throughout the rearfoot of the upper body portion of the upper.
The embo~; -nt shown in Fig. 1 further includes an arch and instep strap 12 which extends between the upper 2 and the sole 5, arch and instep strap 12 having opposite ends each secured to tongue overlay 3a in a 8; ;l~n f~h; on to ankle and heel straps 10 and 11. Arch and instep ~trap 12 is preferably freely ~ hle between the upper 2 and the sole 5.
In this first embodiment, upper body 4 extends above ankle portion 4e, particularly padded collar 4f which re~che~
an apex along an aft portion of the upper body 4. Collar 4f and an opposing portion of the tongue inner 3b, shin ~u~ol~
3d, cooperate with each other to aid the wearer in ~onn;ng or removing the article of footwear by providing additional gripping leverage for the wearer. The~e feature~ are particularly preferable according to the present invention CA 02227783 l998-0l-23 W097/03S81 PCTAUS96/l1983 since the straps 10, 11 and 12 may be one-~iece - h~n8, te~ ated with the tongue 3, that ~lev~l~t tongue 3 from fully ~eparating from ~ l and lateral sides of the upper body 4 (i.e., the integrated structure including ton~ue 3 and straps 10, 11 and 12 is only partially se~arable from the upper body 4, straps 10, 11 and 12 maintA;n;n~ connection to ~~;~l and lateral sides of the upper body 4).
Referring to Figs. 4-6, alternative constructions of the extension of the arch and instep strap 12 are shown. As disclosed in Fig. 4, arch and instep stra~ 12 extends between midsole 30 and orthotic 31 that connects partially to sock liner 32 preferably made from LYCRA or NEOPRENE foam or other breathable mesh material that afford similar high elastic properties and sliplast 33 forming part of the upper 2.
More detailed descriptions of alternative constructions of the arch and instep strap appear in Fi~s. 5 and 6.
Specifically, the alternative construction shown in Fig. 5, arch and instep strap 12 e~t~n~ through orthotic 31, 81 ;plA~t 33 and sock liner 32, ess~nt~ ly 80 as to partially contact a portion of the foot of the wearer along medial and lateral sides thereof. Referring to Fig. 6, the arch and instep strap 12 extends through ~h~nn~l 35 extending through midsole 30.
The first embodiment shown in Figs. 1-3 discloses additional features of the present invention directed to the cinch devices 20 which conn~ct first and second op~osite ends of each of the straps to opposing lateral sides of the tongue 3, formed by flanges 8 extending from tongue overlay 3a. Each of the cinch devices includes a ratchet 21 having a plurality of ~rooves 21a formed therein. Each closed-loop cable 22, ~ten~ through guide-forming members 23a-c connected to ankle strap 10, heel strap 11 and arch and instep strap 12 at flange 8 respectively to ~orm first, ~econd and third turns in the CA 02227783 l998-0l-23 Qnds of the strapg to form a complete closed-lool? c;nch;
system. The cables ~ t~n~3 consecutively through first sruide - ~~ 23a, opposin5J S~uide e~~ 23c and second guide h~-' 23b 80 a~3 to form a closed-loop. ~Jpon pull ;ng pull tab 25, a c;n~h;ng effect occurs to tisrhten the tongue 3 onto a dorsal (top) portion of the l~oot. In addition, the straps are also tensioned, providinçr a concentric tourniquet-like fittinS~
effect is provided by tightening the cinch devices. After the user ~let~ n~e~ an a~ iate t~n~ n, the closed-loop portion of the cable 22 is pushed into an a~loS,~iate clip-in yLoGv~:
21a of ratchet 21 and is cl;~ therein. The ratchets 21 may extend fully around an outer surface of the tongue overlay 3a, such that the ratchetg 21 are shared by oppoging c;n~h;ng devices. In addition, the orientation of one or more of the C; n~h; rlg devices may be reversed, such that the tab 25 ~Yt~n~l~
toward the respective strap, while the respective ratchet 21 is provided on the strap or upper body 4. See ankle strap 10 ~hown in Fig. 3. Cables 22 may be formed of an elastic material to allow an elasticized fit precluding any h; n~; ng on the foot especially during strenuous movements during sports activities. In ~ddition, cables 22 may be replaced by the wearer with cables having a fixed lens~th or differing elastic spring properties to provide a personalized fit. A more det~ile~9 description of the particular structure of the closure system is provided in connection with Figs. l9a-20b hereinafter.
Ag shown in Figs. 1-3, portions of the upper body 4 and tongue 3 may include air vents or breathable mesh material 2a for escaping perspiration. The upper body 4 may be formed mainly of natural leather or synthetic leather, for example, while the tongue 3 may include a natural leather tongue inner 3b and a reinforced thermoplastic material for example, a CA 02227783 l998-0l-23 resilient polyester or low density polyethylene for tongue overlay 3a to provide added ~ , as a~ ~,~" iate.
Figs. 8-9 disclose a ~3eCOn~ embotl; ~ t of the present invention, wherein t_e tongue 3 is modified to include first and second elongated flange portions 6a, 6b provided to overla~
opposing lateral sides of tongue inner 3b. In addition, the ankle, heel and arch and instep straps 10, 11 and 12 are ~ecured directly to the first and second elon~llted flange portions 6a, 6b, such as by stitch;n~, adhesion or molded integrally with the flange portions. A8 straps 10-12 are tensioned, the tongue 3 presses against the dorsal portion of the foot, via action of c;nch;ng devices, as previously described in c~nnection with the first embodiment. IIo..~vt~, in the second embo~; ent, the c;nch;ng devices are provided between the first and second elongated flange portions 6a, 6b to cinch or bias the flange portions toward each other. It is noted that the orientation of one or more of the c;nch;nçJ
devices may be level~ed, such that the tabs 25 face ~ 1y or towards inside of the article of footwear.
The third embodiment shown in Figs. 10 and 11 is substantially ;~lent; Czl 1 to the second : ho~; t ~hown in Figs.
8 and 9, but the straps are tensioned via laces, rather than C; nCh; n9- devices. A8 shown, lace holes 26 are formed in the first and second elongated flange portions 6a, 6b for receiving laces, in a manner well known in the art. Fig. 12 shows a cross-section along line B-B in Fig. 10. The cross-section shown in Fig. 12 is substAnti~lly identical to that shown in Fig. 4 according to the first embodiment, however, the instep strap 12 is connected directly to the tongue, that is, to first and second elongated flange portions 6a, 6b. In addition, the instep strap 12 may extend partially through the upper 2 and/or -W097/0358l PCT~US96/11983 midsole 30, as 8hown in Figs. 5 and 6 in connection with the first : ho~; ~
Fig. 13 shows a partial cross-sectional view taken along lines CC in Fig. 11. As disclo8ed in Fig. 13, layer of ~h~ -~lastic 3c is connected to ton~ue inner 3b located beL~__~ and attAch~ to elongated flange portions 6a, 6b.
Figs. 14 and 15 show a fourth embodiment of the present invention. In this particular embo~ , heel strap 11 is connected to the tongue overlay 3a via elastic loops 27, each of which extends through ch~nnels in the heel strap 11 and tongue overlay 3a. The elasticity of elastic loop 27 may vary depending upon the size of the article of footwear, and/or differences among athletic purposes for which the article of footwear is designed. The elastic loop 27 may include a nylon cover for greater durability and v~ t. In this particular embo~; -nt, the heel strap may be free floating between two layers of the upper or connected to orthotic 31 or a heel counter 4g well known in the art, or the sliplast 33, shown in cross-section Figs. 4-6.
In addition, the arch and instep strap 12 has a first end c~nnected by adhesive and/or ~titching, or other conventional means, directly to the tongue overlay 3a and a second end being adjustably secured to the tongue overlay 3a via a c;nching device, as disclosed in Fig. 15.
The fourth embo~ shown in Figs. 14 and 15 includes a strap element in the form of an elastic cord 40 which extends around the outside of ankle portion of the upper. Ela~tic cord 40 is clipped into grooves formed in groove-for~;n~ m~mhers 41 and 41a, which may be formed of a high flexural modulus elastomer such a~ LOMOD available from General Electric Plastics. As disclosed in Fig. 15, a cinching device is adapted to connect the elastic cord 40 to the tongue overlay 3a. ~ ~ to elastic loop 27, suitable elastic stren~ths of elastic cord 40 may be appropriately utilized ~1~p~n~;ng upon the athletic purpose for which the article of footwear i~
de~3igned.
Althol~h the ~ ho~; ~ ts previously described are drawn to high-top articles of fooL~ear, the present invention may also be adapted for low-cut or oxford type footwear, such as running or cycling footwear or three-~Iuarter mid-height article~ of foot..ear such as h; k; ng or CROSS-TRAI~ING shoes.
Figs. 16 and 17 disclose a low-cut or Oxford type article of foot.7e~r, wherein c;n~h;n~r device 20 is formed to cr~nn~ct first and second elongated flange portions 6a, 6b. In addition, tongue loops 42 may be provided between the first and second elongated flange portions, tongue loops 42 being formed of an elastic material.
Fig. 18, disclo~~es an alternative embodiment of the C; n~h; ng devices, wherein cable 22 extends around synthetic or alloy roller bearings 50 which replace the first, second and opposite guide members 23a-c disclosed in Figs.1-3 and 14-17.
The pulley 51 is preferably composed of th~rm~plastic such as NYLON Gl,ASS FIBER, available from LNP Engineering Plastics.
Cable 22 may be formed of nylon, elastic, or braided metallic cord, natural cord or a combination thereof. The purcha~e of the c;nch;ng ?ch~n;l may be at least 1:1, but preferably 2:1 or 3:1 to gain an ades~uate mechanical advantage from the device.
Figs. l9a and l9b show a detailed view of the device between the cable 22, including tab 25 and clip-in grooves 21a formed in ratchet 21. Tab 25 comprises an outer peripheral edge which bounds sides of the ratchet 21. Clip-in grooves 21a are shaped ~o as to permit the closed loop portion of the cable to clip therein, as fully shown in Fig. l9b.
Fi~s. 20a and 20b show yet another alt~n~t;ve : '~'; t ~or the device between the cable 22 and the rAt~h~t 21. In this particular variation, the cable 22 is connected to a bridging member 29, which may formed of ~h~ :~lastic material. Pull tab 25 extends from bridging member 29. Bridging h~r 29 includes an outer diameter sized to clip into ~ oov~R 21a, s; ;1~ to the : o'; t~ shown in l9a and l9b.
Fig. 21 ~hows a preferable arrangement of layers of the sole and upper. As shown, the sole 5 includes mid~ole 30 and outsole 5a, while upper 2 includes upper body 4, sliplast 33 and orthotic 31. The sliplast 33 is sandwiched between orthotic 31 and upper body 4. As known in the art, the sliplast 33 and upper body 4 are secured together in moccasin f~h;on and att~h~ to the midsole 30, providing a high degree of comfort and cu~hioning. Alternative arrangements of the layers are also contemplated. For example, the sliplast 33 of the sock liner 32 may be ~l;~in~ted~ and the upper body 4 may be secured (e.g., sewn) directly to the orthotic. In this case, the midsole may be el; ;n~ted as in ice ~k~tes and ski boots.
According to each of the embodiments of the present invention, the ankle, heel, arch and instep straps fully wrap around the upper of an article of footwear, and are integrated with the tongue. It ~h~~ be understood by one sk;lle~ in the art that the present invention discloses an integrated tongue-strap structure that applies very even pressure about the dorsal or top portion of the foot, the medial and lateral sides, and sole of the foot comprising the entire circumference of the wearer's foot. The straps may partially contact the foot of the wearer, but preferably generally extend into the upper body or between the upper and the sole ~uch that the tension applied to the straps is distributed over relatively WO97/03581 PCT~S96/11983 large area, thereby providing a superior fit. In addition, the one-piece structure of the straps i~ made possible by the ~ nn~ in which the straps connect to the ton~ue or the specific tensioning means provided along a composite tongue which i8 thereby c;n~h~d. Thus, the straps need not be severed to permit the ~onn; ng and ~ /v ng of an article of footwear by the wearer, which iB required by the prior art.
While particular embodiments of the present invention have been shown and described previougly, varioug modif;c~tinn~
to the : ho~; ~ ts may be made a~ would occur to those skilled in the art upon reviewing the ~resent disclosure. Such variations, within the spirit of the ~resent invention, are 1nt~n~ to be enc~ sed by the scope of the A~p~n~ clA; -, the preferred embodiment~ being provided for illustrative purpose~ only.
RAt'R-'R~l~D OF T~ , NVI ~ CJ~
~ he pre~ent invention relates generally to fooL~_ar, and particularly, footwear having enh~nced support f~ature~
;nt~rally designed into their construction. More specifically, the present inv~nt;on contr _l~tes use of an integrated tongue-strap structure adapted to apply even pressure around the foot and/or ankle of the wearer to provide ~nh~nce~ fit and ~u~o~.
Footwear designers have aspired to produce footwear having 8uperior fit and sup~ort. Nowhere is this more prevalent than in the athletic footwear industry as evi~n~e~
by various earlier footwear embodiments for basketball, jog~ing, football, etc., and even in ice-skating. In addition, there has been increa~ed attention to bicycling footwear, particularl~ to the quality of construction of the upper of bicycle footwear which is subjected to ~n~_ ~us force during the upward pulling stroke of the bicycle rider. Accordingly, the present invention also contemplates provision of an article of footwear having an upper which has superior durability and strength.
An example of athletic footwear having improved ~u~OL ~
features is shown in U.S. Patent No. 4,450,511 to Gamm. Gamm discloses a rllnn;ng shoe having an instep strap which extends through the midsole of a rllnn; ng shoe inside the body of the upper. Opposite ends of the strap have hook and loop fasteners, and the strap is intended to wrap directly around the foot of the wearer. However, the instep support strap according to Gamm suffers from numerous drawbacks. For example, the fit of the upper of the shoe is not largely enhanced by the strap, since it extends inside and directly surrounds the foot. In addition, the strap is likely to affect circulation through the foot, as pressure i~ not evenly distributed throughout a top or dorsal area of the foot. In e CA 02227783 l998-0l-23 W097/03S81 PCT~S96/11983 addition, the interior strap of Gamm requires bur~n~: ?
;p~l~t;~n by the wearer.
~ .S. Patent No. 4,972,613 to ~oveder disclose_ a rear entry athletic shoe using ~ ski-b;nA;n~ type e~hAn; which utilizes n adjustable strap that wraps around an aft portion of the shoe. This desi~n provides only marginal increased ~u~olL throu~h the upper.
U.S. Patent ~o. 5,243,772 to Francis et al. discloses n article of athletic footwear having increased support, by providing an integral ext~rn~l shell that wrap~ around a sock but i8 not connected thereto. The external shell of this invention is ti~htened around the sock and wearer~s foot by means of a conventional lace-type closure sy~tem connecting opposing edges of the shell, over a tongue portion of the ~ock.
However, a need still exists for additional ~u~o,L along the dorsal portion of the foot and superior fit around the ankle nd heel portions of the upper.
U.S. Patent Nos. 2,494,964 to Rome, 4,476,639 to Zaccaria and 3,613,271 to Geller disclose other ~hoe designs incorporating straps but cgnt; nl~e to fail to meet the rigorous ~r ~n~R of 8upport, fit and durability ~- ~n~ed by the marketplace. Of these patents, those to Rome and Geller utilize a strap secured to the tongue of a shoe. However, the 3traps are formed of essentially two segments which are separable from each other to allow the tongue to release and permit the wearer in ~onn; n~ or removing the shoe. The separable two-piece straps are particularly di~advantageous ~ince they do not provide adequate support and require bur~n~. ? manipulation. In addition, the straps merely ~t~n~
around an outer surface of the upper, perhaps through a pull tab strictly provided on an aft portion of the shoe upper as taught by Rome. Such structures do not provide ade~uate support.
WO97/03581 PCT~US96/11983 Eg~ARy OF ~ ~V~L1O~
The present invention has been developed to ~v~lc ~ the deficiencies of the prior art, and provide an article of foot-._~r having superior fit, strength, durability ~nd ~u~ ~.
According to the present invention, an integrated ton~ue-strap structure is provided to ~ive unparalleled ~olL, fit and durability. The strap which fully wraps around the upper body and which is integrated with the tongue, provides a glove-like fit, distributing pres~ure along a lower shin portion, a rear foot or ~nkle portion, a sub~t~nt;~l area of the dorsal surface inc7l7~ing the lateral and ~~;~1 sides, and sole portions of the foot, con~ntrically and controlled by an ; t of t~n~;nn ~pl;e~ to the straP.
According to a first aspect of the present inventio~, an article of footwear is provided, comprising an upper formed of at least two layers and including (i) an upper body including a heel portion, an instep portion and a toe portion for respectively receiving a heel, an instep, and toe~ of a foot of a wearer, and (ii) a tongue for covering the dorsal portion of the foot including the lateral and medial aspects thereof; a sole or other hardware connected to the u~per; a strap el~ - t penetr~ting the upper body and ext~n~;n~ between two layers of the upper body from medial to lateral sides thereof, the strap element having first and second opposite ends respectively secured to opposite lateral sides of the tongue to form an integrated strap-tongue structure; and tensioning means for adju~ting tension of the strap ~1 E - t .
According to a second aspect of the present invent;on, an article of footwear is provided, comprising an upper including (i) an upper body including a heel portion, an instep portion and a toe portion for respectively receiving a heel, an instep, ~nd toes of a foot of a wearer, and (ii) a tongue attached to the upper body, for covering a dorsal portion of the foot; a W097/03581 PCT~US96/11983 sole connected to the upper; a one-piece strap el ~ t having first and 8~c~n~ opposite end~ respectively secured to o~posite lateral sides of the tongue to form an integrated ~trap-tongue structure; Pnd tensioning means for adjusting tension of the strap element.
According to a third aspect of the invention, an article of fooL~_-~r is provided, comprising an upper including (i) an u~er body including a heel portion, an arch ~nd instep portion and a toe portion for respectively receiving a heel, an arch and instep and toes of a foot of a wearer, ~nd (ii) a tongue for covering the dorsal portion of the foot including the lateral and -~i Al aspects thereof; a sole or other hardware connected to the upper; a one-piece strap element ext~n~in~
between the upper body and the sole, the strap element including first and second opposite ends respectively secured to opposite lateral sides of the tongue to form an integrated strap-tongue structure; and tensioning means for adju~ting tension of the strap element.
According to the first aspect of the present invention, since the strap element extends between at 7 east two layers of the upper, around the upper body from q~;Al to lateral sides thereof, pressure around an ankle portion or heel portion (from e~;~l to lateral side~ thereof) i~ evenly distributed. In addition, since the strap penetrates the upper ~t~n~ therein through a substantial portion thereof so as to extend along a through-direction, orientation of the strap may be securely maintA;ne~ along a direction perpendicular to the throu~h-direction of the strap.
According to the second and third aspects of the pre~ent invention, an article of footwear which is easy to don without requiring ~eparation of straps via buckles, VELCRO or ratcheting mechanisms, thereby contributing to the superior support provided by the present invention. Tho~e advantages are realized by utilizing a one-piece strap, an extended WO97/03581 PCT~US96/11983 section of material which i~ not severable, ~uch as by an ~nt~ ~ te buckle or by a hook and loop fastener. The one-piece str~p may, ho.._v~ , be formed of ~ number of layers of the same or different materials, or suitable sections of different materials connected together ~o as to include reinforced portions, for example. According to the present inv~nt;on, a one-piece strap is effectively utilized while the prior art relie~ on severable ~traps to release the foot from the upper.
Preferably, the strap ~1 - t according to all ~spect~ of the present invention i8 free floating, that i8, is freely ~lidable between layers of the upper or between the up~er and the ol~tsole. According to thi~ part;c~1arly preferable feature, the relative po~ition of the tongue may be freely moved to conform to the dorsal portion o~ the foot of the wearer.
Preferably, a plurality of strap element~ are ~rovided. For example, in a high-top emboaiment of the present invention, ankle, heel and midfoot straps may be utilized, each of which i~ integrated with the tongue of the upper.
The present invention also cont~ tes a unique c;nrh;ng ech~n ;: , which may be adapted to tension the straps of the article of footwear according to the first, second and third aspects of the pre~ent invention. The cinching ech~n;sm include~ a device for pulling first and second members together, comprising a closed-loop cable connecting the first and second members to each other; first guiding means for guiding the cable through first and second symmetrically spaced-apart turns along the first member; second guiding means for guiding the cable through an opposing turn in the second member, wherein the cable forms a closed-loop consecutively extending through the first turn, the opposing turn and the second turn; and a ratchet including a plurality of juxtaposed grooves for receiving the cable, to fix a relative position of the first and second members with each other.
The present article of footwear is not limited to athletic footwear, but may include any article of footwear such as ice-skates, ski boots, bicycling foot-ear, h;k;ng boots, ~nd~ ls etc. In addition, the outsole may be formed for virtually any sport, and may be cleated for outdoor sports, have hl ~e~ for ice-skating, or have lugs for h; k;ng, etc.
RRT~F n~.~RTPTION OF T~R DRAWINGS
Fig. 1 is a lateral side elevational view of a first embo~; -nt of the present invention having closed c;nch;ng devices;
Fig. 2 is a lateral side elevational view of the first : ho~; - of the present invention disclosed in Fig. 1, having released c; n~h; ng devices provided between respective straps and the tongue;
Fig. 3 is a -A;~7 side elevational view of the first : ~o~; t disclosed in Fig. 1, having closed c;nch;n~ devices;
Fig. 4 is a partial cross-sectional view along line A-A
of Fig. 2 disclosing the arch and instep strap extending beL..e_~ the upper and midsole;
Fig. 5 is a partial cross-sectional view along line A-A
of Fig. 2 disclosing the arch and instep strap ext~nA;ng through the inside of the upper allowing for direct contact with the wearer's foot;
Fig. 6 is a partial cross-sectional view along line A-A
of Fig. 2 disclosing the arch and instep strap ext~nA;ng through rh~nn~l ~ in the midsole;
Fig. 7 is a partial sectional view disclosing the extension of the ankle strap of the first embodiment shown in Fig. 1;
Fi~. 8 is a lateral side elevational view of a second embodiment of the pre~ent invention disclosed in Fig.l providing c;n~h;ng devices on first and second elongated flange portions of the tongue;
Fig. 9 is a ~~;~1 side elevational view of the article of fooL~_ar disclosed in Fig.8 providin~ particularly firYt and second guide '-~ 8 of each c;n~h;ng device;
Fig. 10 is a lateral ~ide elevational view of a third embo~; ~nt of the present invention disclosed in Fig.l providing alt~rnAt;ve lacing hole8 on elongated flange portions of the tongue:
Fig. 11 is a ?~;~1 side elevational view of the ~rticle of foo~.Jear di~clo~ed in Fig. 10;
Fig. 12 is a partial cross-sectional view taken along line s-s in Fig. 10;
Fig. 13 is a partial sectional view along line C-C in Fig. 11, disclosing the structure of the ton~ue;
Fig. 14 is a lateral side elevational view of a fourth embodiment of the present invention disclosed in Fig.l providing alt~rn~t;ve c;n~h;ng devices for securing the ~traps to the tongue of an article of footwear;
Fig. 15 is a medial side elevational view of the fourth embodiment disclosed in Fig. 14, providing groove-forming -r8 for alternative c;n~h;n~ devices;
Fig. 16 is a lateral ~ide elevational view of a fifth embodiment of the present invention disclosed in Fig. 1, disclosing a low-cut or oxford style running shoe;
Fig. 17 is a ~ 1 side elevational view of the article of footwear disclo~ed in Fig. 16;
Fig. 18 is a schematic view of an alternative cinch device according to the present invention;
_ W097/03581 PCT~US96/11983 Figs. l9A and l9B are partial top and A~ide views of the connecting structures of the cinch device according to an : ~Oa- ~ of the present invF~nti~n; and Fi~s. 20A and 20B are partial top and side views of 5 alt~rn~t; ve cnnn~~cting structures of the cinch device according to an :; -'; - of the pregent inv~~n1~;on~
Fig. 21 is an exploded perspective view showin~ a l~yered structure of the u~per and sole including A~ol ~ and outsole.
n~CRIPTION OF AY~ EMBODIrr-- ~
Referring now to the drawingA~, a description of preferred embo~; -nts of the present invention is set forth. Sa~Ae reference als are utilized among the different to denote ~imilar structural features.
Figs. 1-3 illustrate a first embodiment, showing first, second and third aspects of the present inv~nt;on. An article of footwear 1 is provided, comprising an u~per 2 which ;nC~ e~
tongue 3 and upper body 4. In this embodiment, the tongue includes a tongue overlay 3a and a tongue inner 3b. Inner surfaces of tongue overlay and tongue inner 3a, 3b may include padded closed cell foam, to provide added stability and comfort. Preferably, tongue inner 3b has a dorsal extension fc- ;n~ shin ~u~pOl~ 3d which aids in ~nnn;ng or ~. ving the article of footwear, di5cussed below. Upper body 4 includes heel portion 4a, instep portion 4b, arch portion 4c and toe portion 4d which respectively wrap around aAnd receive the heel, instep and toes, respectively, of the foot of the wearer. The first embo~ nt of the present invention shown in Figs. 1-3 discloAses high-top or mid-height athletic footwear that provides additional support to the wearer around ankle portion 4e which receives the ankle of the wearer. A sole 5 is W097/03581 PCT~S96/11983 connected to upper body 4 and is adapted for contacting a ground surface. In addition, a midsole 30 may be further provided be~e~n the outsole 5a and the upper 2, illustrated in Figs. 4-6.
The ~ ho~; t shown in Figs. 1-3 preferably includes an ankle strap 10, a heel strap 11, and an arch and instep strap 12 which ~t~n~ around the u~per body and has opposite ends connected to the tongue 3, part;c~ ~ly to the tongue overlay 3a at flanges 8 along ~;~1 and lateral aspects thereof. Each of ankle strap 10 and heel strap 11 penetrate~ into the upper body, and extends between first and second layers 36 and 37 (shown in Fig.'7) around a substantial portion of the upper body, between medial and lateral sides thereof. Another preferable feature of the present article of footwear includes ankle and heel straps 10 and 11 that are freely ~ hle within the upper body 4, which a~~ord~ the wearer personalized adjustability throughout the rearfoot of the upper body portion of the upper.
The embo~; -nt shown in Fig. 1 further includes an arch and instep strap 12 which extends between the upper 2 and the sole 5, arch and instep strap 12 having opposite ends each secured to tongue overlay 3a in a 8; ;l~n f~h; on to ankle and heel straps 10 and 11. Arch and instep ~trap 12 is preferably freely ~ hle between the upper 2 and the sole 5.
In this first embodiment, upper body 4 extends above ankle portion 4e, particularly padded collar 4f which re~che~
an apex along an aft portion of the upper body 4. Collar 4f and an opposing portion of the tongue inner 3b, shin ~u~ol~
3d, cooperate with each other to aid the wearer in ~onn;ng or removing the article of footwear by providing additional gripping leverage for the wearer. The~e feature~ are particularly preferable according to the present invention CA 02227783 l998-0l-23 W097/03S81 PCTAUS96/l1983 since the straps 10, 11 and 12 may be one-~iece - h~n8, te~ ated with the tongue 3, that ~lev~l~t tongue 3 from fully ~eparating from ~ l and lateral sides of the upper body 4 (i.e., the integrated structure including ton~ue 3 and straps 10, 11 and 12 is only partially se~arable from the upper body 4, straps 10, 11 and 12 maintA;n;n~ connection to ~~;~l and lateral sides of the upper body 4).
Referring to Figs. 4-6, alternative constructions of the extension of the arch and instep strap 12 are shown. As disclosed in Fig. 4, arch and instep stra~ 12 extends between midsole 30 and orthotic 31 that connects partially to sock liner 32 preferably made from LYCRA or NEOPRENE foam or other breathable mesh material that afford similar high elastic properties and sliplast 33 forming part of the upper 2.
More detailed descriptions of alternative constructions of the arch and instep strap appear in Fi~s. 5 and 6.
Specifically, the alternative construction shown in Fig. 5, arch and instep strap 12 e~t~n~ through orthotic 31, 81 ;plA~t 33 and sock liner 32, ess~nt~ ly 80 as to partially contact a portion of the foot of the wearer along medial and lateral sides thereof. Referring to Fig. 6, the arch and instep strap 12 extends through ~h~nn~l 35 extending through midsole 30.
The first embodiment shown in Figs. 1-3 discloses additional features of the present invention directed to the cinch devices 20 which conn~ct first and second op~osite ends of each of the straps to opposing lateral sides of the tongue 3, formed by flanges 8 extending from tongue overlay 3a. Each of the cinch devices includes a ratchet 21 having a plurality of ~rooves 21a formed therein. Each closed-loop cable 22, ~ten~ through guide-forming members 23a-c connected to ankle strap 10, heel strap 11 and arch and instep strap 12 at flange 8 respectively to ~orm first, ~econd and third turns in the CA 02227783 l998-0l-23 Qnds of the strapg to form a complete closed-lool? c;nch;
system. The cables ~ t~n~3 consecutively through first sruide - ~~ 23a, opposin5J S~uide e~~ 23c and second guide h~-' 23b 80 a~3 to form a closed-loop. ~Jpon pull ;ng pull tab 25, a c;n~h;ng effect occurs to tisrhten the tongue 3 onto a dorsal (top) portion of the l~oot. In addition, the straps are also tensioned, providinçr a concentric tourniquet-like fittinS~
effect is provided by tightening the cinch devices. After the user ~let~ n~e~ an a~ iate t~n~ n, the closed-loop portion of the cable 22 is pushed into an a~loS,~iate clip-in yLoGv~:
21a of ratchet 21 and is cl;~ therein. The ratchets 21 may extend fully around an outer surface of the tongue overlay 3a, such that the ratchetg 21 are shared by oppoging c;n~h;ng devices. In addition, the orientation of one or more of the C; n~h; rlg devices may be reversed, such that the tab 25 ~Yt~n~l~
toward the respective strap, while the respective ratchet 21 is provided on the strap or upper body 4. See ankle strap 10 ~hown in Fig. 3. Cables 22 may be formed of an elastic material to allow an elasticized fit precluding any h; n~; ng on the foot especially during strenuous movements during sports activities. In ~ddition, cables 22 may be replaced by the wearer with cables having a fixed lens~th or differing elastic spring properties to provide a personalized fit. A more det~ile~9 description of the particular structure of the closure system is provided in connection with Figs. l9a-20b hereinafter.
Ag shown in Figs. 1-3, portions of the upper body 4 and tongue 3 may include air vents or breathable mesh material 2a for escaping perspiration. The upper body 4 may be formed mainly of natural leather or synthetic leather, for example, while the tongue 3 may include a natural leather tongue inner 3b and a reinforced thermoplastic material for example, a CA 02227783 l998-0l-23 resilient polyester or low density polyethylene for tongue overlay 3a to provide added ~ , as a~ ~,~" iate.
Figs. 8-9 disclose a ~3eCOn~ embotl; ~ t of the present invention, wherein t_e tongue 3 is modified to include first and second elongated flange portions 6a, 6b provided to overla~
opposing lateral sides of tongue inner 3b. In addition, the ankle, heel and arch and instep straps 10, 11 and 12 are ~ecured directly to the first and second elon~llted flange portions 6a, 6b, such as by stitch;n~, adhesion or molded integrally with the flange portions. A8 straps 10-12 are tensioned, the tongue 3 presses against the dorsal portion of the foot, via action of c;nch;ng devices, as previously described in c~nnection with the first embodiment. IIo..~vt~, in the second embo~; ent, the c;nch;ng devices are provided between the first and second elongated flange portions 6a, 6b to cinch or bias the flange portions toward each other. It is noted that the orientation of one or more of the c;nch;nçJ
devices may be level~ed, such that the tabs 25 face ~ 1y or towards inside of the article of footwear.
The third embodiment shown in Figs. 10 and 11 is substantially ;~lent; Czl 1 to the second : ho~; t ~hown in Figs.
8 and 9, but the straps are tensioned via laces, rather than C; nCh; n9- devices. A8 shown, lace holes 26 are formed in the first and second elongated flange portions 6a, 6b for receiving laces, in a manner well known in the art. Fig. 12 shows a cross-section along line B-B in Fig. 10. The cross-section shown in Fig. 12 is substAnti~lly identical to that shown in Fig. 4 according to the first embodiment, however, the instep strap 12 is connected directly to the tongue, that is, to first and second elongated flange portions 6a, 6b. In addition, the instep strap 12 may extend partially through the upper 2 and/or -W097/0358l PCT~US96/11983 midsole 30, as 8hown in Figs. 5 and 6 in connection with the first : ho~; ~
Fig. 13 shows a partial cross-sectional view taken along lines CC in Fig. 11. As disclo8ed in Fig. 13, layer of ~h~ -~lastic 3c is connected to ton~ue inner 3b located beL~__~ and attAch~ to elongated flange portions 6a, 6b.
Figs. 14 and 15 show a fourth embodiment of the present invention. In this particular embo~ , heel strap 11 is connected to the tongue overlay 3a via elastic loops 27, each of which extends through ch~nnels in the heel strap 11 and tongue overlay 3a. The elasticity of elastic loop 27 may vary depending upon the size of the article of footwear, and/or differences among athletic purposes for which the article of footwear is designed. The elastic loop 27 may include a nylon cover for greater durability and v~ t. In this particular embo~; -nt, the heel strap may be free floating between two layers of the upper or connected to orthotic 31 or a heel counter 4g well known in the art, or the sliplast 33, shown in cross-section Figs. 4-6.
In addition, the arch and instep strap 12 has a first end c~nnected by adhesive and/or ~titching, or other conventional means, directly to the tongue overlay 3a and a second end being adjustably secured to the tongue overlay 3a via a c;nching device, as disclosed in Fig. 15.
The fourth embo~ shown in Figs. 14 and 15 includes a strap element in the form of an elastic cord 40 which extends around the outside of ankle portion of the upper. Ela~tic cord 40 is clipped into grooves formed in groove-for~;n~ m~mhers 41 and 41a, which may be formed of a high flexural modulus elastomer such a~ LOMOD available from General Electric Plastics. As disclosed in Fig. 15, a cinching device is adapted to connect the elastic cord 40 to the tongue overlay 3a. ~ ~ to elastic loop 27, suitable elastic stren~ths of elastic cord 40 may be appropriately utilized ~1~p~n~;ng upon the athletic purpose for which the article of footwear i~
de~3igned.
Althol~h the ~ ho~; ~ ts previously described are drawn to high-top articles of fooL~ear, the present invention may also be adapted for low-cut or oxford type footwear, such as running or cycling footwear or three-~Iuarter mid-height article~ of foot..ear such as h; k; ng or CROSS-TRAI~ING shoes.
Figs. 16 and 17 disclose a low-cut or Oxford type article of foot.7e~r, wherein c;n~h;n~r device 20 is formed to cr~nn~ct first and second elongated flange portions 6a, 6b. In addition, tongue loops 42 may be provided between the first and second elongated flange portions, tongue loops 42 being formed of an elastic material.
Fig. 18, disclo~~es an alternative embodiment of the C; n~h; ng devices, wherein cable 22 extends around synthetic or alloy roller bearings 50 which replace the first, second and opposite guide members 23a-c disclosed in Figs.1-3 and 14-17.
The pulley 51 is preferably composed of th~rm~plastic such as NYLON Gl,ASS FIBER, available from LNP Engineering Plastics.
Cable 22 may be formed of nylon, elastic, or braided metallic cord, natural cord or a combination thereof. The purcha~e of the c;nch;ng ?ch~n;l may be at least 1:1, but preferably 2:1 or 3:1 to gain an ades~uate mechanical advantage from the device.
Figs. l9a and l9b show a detailed view of the device between the cable 22, including tab 25 and clip-in grooves 21a formed in ratchet 21. Tab 25 comprises an outer peripheral edge which bounds sides of the ratchet 21. Clip-in grooves 21a are shaped ~o as to permit the closed loop portion of the cable to clip therein, as fully shown in Fig. l9b.
Fi~s. 20a and 20b show yet another alt~n~t;ve : '~'; t ~or the device between the cable 22 and the rAt~h~t 21. In this particular variation, the cable 22 is connected to a bridging member 29, which may formed of ~h~ :~lastic material. Pull tab 25 extends from bridging member 29. Bridging h~r 29 includes an outer diameter sized to clip into ~ oov~R 21a, s; ;1~ to the : o'; t~ shown in l9a and l9b.
Fig. 21 ~hows a preferable arrangement of layers of the sole and upper. As shown, the sole 5 includes mid~ole 30 and outsole 5a, while upper 2 includes upper body 4, sliplast 33 and orthotic 31. The sliplast 33 is sandwiched between orthotic 31 and upper body 4. As known in the art, the sliplast 33 and upper body 4 are secured together in moccasin f~h;on and att~h~ to the midsole 30, providing a high degree of comfort and cu~hioning. Alternative arrangements of the layers are also contemplated. For example, the sliplast 33 of the sock liner 32 may be ~l;~in~ted~ and the upper body 4 may be secured (e.g., sewn) directly to the orthotic. In this case, the midsole may be el; ;n~ted as in ice ~k~tes and ski boots.
According to each of the embodiments of the present invention, the ankle, heel, arch and instep straps fully wrap around the upper of an article of footwear, and are integrated with the tongue. It ~h~~ be understood by one sk;lle~ in the art that the present invention discloses an integrated tongue-strap structure that applies very even pressure about the dorsal or top portion of the foot, the medial and lateral sides, and sole of the foot comprising the entire circumference of the wearer's foot. The straps may partially contact the foot of the wearer, but preferably generally extend into the upper body or between the upper and the sole ~uch that the tension applied to the straps is distributed over relatively WO97/03581 PCT~S96/11983 large area, thereby providing a superior fit. In addition, the one-piece structure of the straps i~ made possible by the ~ nn~ in which the straps connect to the ton~ue or the specific tensioning means provided along a composite tongue which i8 thereby c;n~h~d. Thus, the straps need not be severed to permit the ~onn; ng and ~ /v ng of an article of footwear by the wearer, which iB required by the prior art.
While particular embodiments of the present invention have been shown and described previougly, varioug modif;c~tinn~
to the : ho~; ~ ts may be made a~ would occur to those skilled in the art upon reviewing the ~resent disclosure. Such variations, within the spirit of the ~resent invention, are 1nt~n~ to be enc~ sed by the scope of the A~p~n~ clA; -, the preferred embodiment~ being provided for illustrative purpose~ only.
Claims (32)
1. An article of footwear, comprising:
an upper including (i) an upper body including a heel portion, an instep portion and a toe portion for respectively receiving a heel, an instep, and toes of a foot of a wearer, and (ii) a tongue attached to the upper body, for covering a dorsal portion of the foot;
a sole bonded to the upper;
first and second one-piece strap elements having first and second opposite ends respectively secured to opposite lateral sides of the tongue to form an integrated strap-tongue structure; and first and second tensioning moans for substantially independently adjusting tension of each strap element, said first and second tensioning means being attached to the upper at respective locations that are spaced apart from each other along the upper.
an upper including (i) an upper body including a heel portion, an instep portion and a toe portion for respectively receiving a heel, an instep, and toes of a foot of a wearer, and (ii) a tongue attached to the upper body, for covering a dorsal portion of the foot;
a sole bonded to the upper;
first and second one-piece strap elements having first and second opposite ends respectively secured to opposite lateral sides of the tongue to form an integrated strap-tongue structure; and first and second tensioning moans for substantially independently adjusting tension of each strap element, said first and second tensioning means being attached to the upper at respective locations that are spaced apart from each other along the upper.
2. The article of footwear according to claim 1, wherein each tensioning means is provided between at least one of the first and second ends of each strap element and a respective lateral side of the tongue.
3. The article of footwear according to claim 1, wherein one of the first and second strap elements extends around the heel portion of the upper body.
4. The article of footwear according to claim 1, wherein said article of footwear comprises a high top upper body including an ankle portion which receives an ankle of the wearer, one of the first and second strap elements extending around the ankle portion of the upper body.
5. The article of footwear according to claim 1, wherein said tongue has a composite structure, including at least first and second elongated flange portions, said first and second tensioning means being provided to cinch said first and second elongated flange portions toward each other.
6. The article of footwear according to claim 5, wherein said tongue further comprises a tongue inner, and said first and second elongated flap portions overlap opposite medial and lateral sides of the tongue inner.
7. The article of footwear according to claim 5, wherein said first and second tensioning means includes first and second cinching devices, respectively, securing said two elongated flange portions to each other, each cinch device comprising:
a closed-loop cable connecting the first elongated flange portion to said second elongated flange portion;
first guiding means for guiding the cable through first and second spaced-apart turns along said first elongated flange portion;
second guiding means for guiding the cable through an opposing turn in the second elongated flange portion, wherein the cable forms a closed loop consecutively extending through the first turn, the opposing turn, and the second turn; and a ratchet having a plurality of juxtaposed grooves for receiving the cable, to fix a relative position of said first elongated flange portion with respect to said second elongated flange portion, said ratchet being formed on the second elongated flange portion.
a closed-loop cable connecting the first elongated flange portion to said second elongated flange portion;
first guiding means for guiding the cable through first and second spaced-apart turns along said first elongated flange portion;
second guiding means for guiding the cable through an opposing turn in the second elongated flange portion, wherein the cable forms a closed loop consecutively extending through the first turn, the opposing turn, and the second turn; and a ratchet having a plurality of juxtaposed grooves for receiving the cable, to fix a relative position of said first elongated flange portion with respect to said second elongated flange portion, said ratchet being formed on the second elongated flange portion.
8. The article of footwear according to claim 1, wherein one of said first and second tensioning means comprises an elastic member which connects a respective strap element to the tongue.
9. The article of footwear according to claim 8, wherein said elastic member comprises an elastic loop.
10. The article of footwear according to claim 1, wherein said article of footwear comprises a high-top upper body including an ankle portion which receives an ankle of the wearer, and said first strap element comprises a free-floating elastic cord extending around the ankle portion of the upper body.
11. The article of footwear according to claim 10, further comprising at least one groove-forming member provided along said ankle portion, the elastic cord being received by said groove-forming and being freely slidable therein.
12. The article of footwear according to claim 1, wherein said tongue has a composite structure, including a tongue inner and a tongue overlay which at least partially covers the tongue inner and which partially overlaps lateral and medial sides of the upper body.
13. The article of footwear according to claim 12, wherein said tongue inner includes a dorsal extension forming a shin support which extends along a shin of the wearer.
14. The article of footwear according to claim 1, wherein said article of footwear comprises a high top upper body including an ankle portion which receives an ankle of the wearer, and includes a padded collar extending from said ankle portion.
15. The article of footwear of claim 1, wherein said upper body is formed of at least two layers and said first strap element penetrates the upper body and extends between two layers of the upper body through a substantial portion of the upper body between medial and lateral sides thereof.
16. The article of footwear according to claim 15, wherein the first strap element is freely slidable between said two layers of the upper body.
17. The article of footwear of claim 1, wherein said sole includes an outsole, and said first strap element extends between said upper body and said outsole.
18. The article of footwear according to claim 17, wherein the first strap element is freely slidable between said upper and said outsole.
19. The article of footwear according to claim 17, wherein the sole includes a midsole, provided between said outsole and said upper, said first strap element extending through said midsole.
20. The article of footwear according to claim 17, wherein said first strap element extends around the arch and instep portion of the upper.
21. The article of footwear according to claim 17, wherein said upper includes an orthotic, said orthotic having an outer surface contoured to form-fit a bottom surface of the foot of the wearer, said first strap element passing between the orthotic and the outsole.
22. An article of footwear, comprising:
an upper including (i) an upper body including a heel portion, an instep portion and a toe portion for respectively receiving a heel, and instep, and toes of a foot of wearer, and (ii) a tongue attached to the upper body, for covering a dorsal portion of the foot;
a sole connected to the upper;
a one-piece strap element having first and second opposite ends respectively secured to opposing lateral sides of the tongue to form an integrated strap-tongue structure; and a first tensioning device connecting the first end of the strap element to the tongue, and a second tensioning device connecting the second end of the strap element to the tongue, each of the first and second tensioning devices being independently adjustable.
an upper including (i) an upper body including a heel portion, an instep portion and a toe portion for respectively receiving a heel, and instep, and toes of a foot of wearer, and (ii) a tongue attached to the upper body, for covering a dorsal portion of the foot;
a sole connected to the upper;
a one-piece strap element having first and second opposite ends respectively secured to opposing lateral sides of the tongue to form an integrated strap-tongue structure; and a first tensioning device connecting the first end of the strap element to the tongue, and a second tensioning device connecting the second end of the strap element to the tongue, each of the first and second tensioning devices being independently adjustable.
23. The article of footwear of Claim 22, including at least two strap elements.
24. The article of footwear of Claim 22, wherein the strap element extends around the heel portion of the upper body.
25. The article of footwear of Claim 22, wherein the strap element extends around the instep portion of the upper body.
26. The article of footwear of Claim 22, wherein said article of footwear comprises a high-top upper body including an ankle portion which receives an ankle of the wearer, and said strap element extends around the ankle portion of the upper body.
27. The article of footwear of Claim 22, wherein said tongue has a composite structure, including a tongue inner and a tongue overlay which at least partially covers the tongue inner and which partially overlaps lateral and medial sides of the upper body.
28. The article of footwear of Claim 27, wherein said tongue inner includes a dorsal extension forming a shin support which extends along a shin of the wearer.
29. The article of footwear of Claim 26, further comprising a padded collar extending from the ankle portion.
30. An article of footwear, comprising:
an upper including (i) an upper body including a heel portion, an instep portion and a toe portion for respectively receiving a heel, an instep, and toes of a foot of a wearer, and (ii) a tongue attached to the upper body, for covering a dorsal portion of the foot;
a sole connected to the upper;
a strap element having first and second opposite ends respectively secured to opposite lateral sides of the tongue to form an integrated strap-tongue structures and tensioning means for adjusting tension of the strap element, wherein said tensioning means includes a cinching device, comprising:
a closed-loop cable connecting the tongue to the strap element;
a first guiding means for guiding the cable through first and second spaced-apart turns along one of the tongue and the strap element;
a second guiding means for guiding the cable through an opposing turn in the other of the tongue and the strap element, wherein the cable forms a closed loop consecutively extending through the first turn, the opposing turn, and the second turn;
and a ratchet including a plurality of juxtaposed grooves for receiving the cable, to fix a relative position of the strap element with respect to the tongue.
an upper including (i) an upper body including a heel portion, an instep portion and a toe portion for respectively receiving a heel, an instep, and toes of a foot of a wearer, and (ii) a tongue attached to the upper body, for covering a dorsal portion of the foot;
a sole connected to the upper;
a strap element having first and second opposite ends respectively secured to opposite lateral sides of the tongue to form an integrated strap-tongue structures and tensioning means for adjusting tension of the strap element, wherein said tensioning means includes a cinching device, comprising:
a closed-loop cable connecting the tongue to the strap element;
a first guiding means for guiding the cable through first and second spaced-apart turns along one of the tongue and the strap element;
a second guiding means for guiding the cable through an opposing turn in the other of the tongue and the strap element, wherein the cable forms a closed loop consecutively extending through the first turn, the opposing turn, and the second turn;
and a ratchet including a plurality of juxtaposed grooves for receiving the cable, to fix a relative position of the strap element with respect to the tongue.
31. The article of footwear according to claim 30, wherein said ratchet is formed on one of the tongue, the upper body, and the strap element.
32. An article of footwear, comprising:
an upper including (i) an upper body including a heel portion, an instep portion and a toe portion for respectively receiving a heel, an instep, and toes of a foot of a wearer, and (ii) a tongue attached to the upper body, for covering a dorsal portion of the foot, said tongue having a composite structure, including at least first and second elongated flange portions;
a sole bonded to the upper;
a one-piece strap element having first and second opposite ends respectively secured to opposite lateral sides of the tongue to form an integrated strap-tongue structure; and tensioning means for adjusting tension of the strap element by cinching said first and second elongated flange portions toward each other, said tensioning means comprising laces which secure said first and second elongated flange portions to each other.
an upper including (i) an upper body including a heel portion, an instep portion and a toe portion for respectively receiving a heel, an instep, and toes of a foot of a wearer, and (ii) a tongue attached to the upper body, for covering a dorsal portion of the foot, said tongue having a composite structure, including at least first and second elongated flange portions;
a sole bonded to the upper;
a one-piece strap element having first and second opposite ends respectively secured to opposite lateral sides of the tongue to form an integrated strap-tongue structure; and tensioning means for adjusting tension of the strap element by cinching said first and second elongated flange portions toward each other, said tensioning means comprising laces which secure said first and second elongated flange portions to each other.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/506,114 | 1995-07-24 | ||
| US08/506,114 US5651197A (en) | 1995-07-24 | 1995-07-24 | Article of footwear |
| PCT/US1996/011983 WO1997003581A1 (en) | 1995-07-24 | 1996-07-18 | Article of footwear |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2227783A1 CA2227783A1 (en) | 1997-02-06 |
| CA2227783C true CA2227783C (en) | 2000-10-10 |
Family
ID=24013250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002227783A Expired - Lifetime CA2227783C (en) | 1995-07-24 | 1996-07-18 | Article of footwear |
Country Status (4)
| Country | Link |
|---|---|
| US (3) | US5651197A (en) |
| EP (1) | EP0847245A4 (en) |
| CA (1) | CA2227783C (en) |
| WO (1) | WO1997003581A1 (en) |
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-
1995
- 1995-07-24 US US08/506,114 patent/US5651197A/en not_active Expired - Lifetime
-
1996
- 1996-07-18 CA CA002227783A patent/CA2227783C/en not_active Expired - Lifetime
- 1996-07-18 EP EP96926098A patent/EP0847245A4/en not_active Withdrawn
- 1996-07-18 WO PCT/US1996/011983 patent/WO1997003581A1/en not_active Application Discontinuation
-
1997
- 1997-06-04 US US08/868,894 patent/US5829169A/en not_active Expired - Lifetime
-
1998
- 1998-09-01 US US09/145,353 patent/US5933985A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| WO1997003581A1 (en) | 1997-02-06 |
| US5651197A (en) | 1997-07-29 |
| EP0847245A1 (en) | 1998-06-17 |
| CA2227783A1 (en) | 1997-02-06 |
| US5933985A (en) | 1999-08-10 |
| US5829169A (en) | 1998-11-03 |
| EP0847245A4 (en) | 2000-07-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |
Effective date: 20160718 |