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Publication numberUS2930149 A
Publication typeGrant
Publication dateMar 29, 1960
Filing dateJan 28, 1959
Priority dateJan 28, 1959
Publication numberUS 2930149 A, US 2930149A, US-A-2930149, US2930149 A, US2930149A
InventorsHack Leonard, Hack Morton, Hack Nathan
Original AssigneeRipple Sole Corp
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Resilient shoe sole and wedge construction
US 2930149 A
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Description  (OCR text may contain errors)

March 29, 1960 N. HACK ETAL 2,930,149

RESIL'IENT SHOE sou: AND WEDGE CONSTRUCTION Filed Jan. 28. 1959 3 Sheets-Sheet l 3 F163 l6 I2 NVENTORS NA HAN HACK MORTON HACK8. LEONARD HACK ATTORNEY March 29, 1960 N. HACK ET AL 2,930,149

RESILIENT SHOE sous AND WEDGE CONSTRUCTION Filed Jan. 28. 1959 3 Sheets-Sheet 2 INVENTORS NATHAN HACK. MORTON HACK 8 BY T LEONARD HACK ATTORNEY March 29, 1960 N. HACK ET AL I 2,

RESILIENT SHOE sou: AND WEDGE CONSTRUCTION Filed Jan. 28, 1959 3 Sheets-Sheet 3 NATHAN HACK MORTON HACK8. BY LEONARD HACK ATTORNEY rates.

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RESILENT SHOE SOLE AND WEDGE CONSTRUCTION Application January 28, 1959, Serial No. 789,571

11 Claims. (CI. 36-28) This invention pertains to resilient shoes soles and more particularly to shoe soles integrally formed with wedges.

The invention involves an integrally formed resilient shoe sole and wedge construction inwhich the sole is provided with added flexibility and resiliency by a construction that employs either resilient transverse ribs integrally formed with the sole body or extensions of the sole ribs in the body of the wedge area. The sole and wedge construction may embody upper transversely extending ribs circumscribed by'an outer annular circumferential rim of solid material, or may embody rib portions extending into the wedge area. The inventive construction heredisclosed may be used with soles havingstraight or curved transverse ribs.

A principal advantage and object of the inventive construction is to impart added flexibility and resiliency to the Shoe sole. Another object is to reduce the weight of the sole and wedge construction. Yet another object is to impart added shock absorbing and cushioning values to the sole and wedge unit.

These and additional objects of the invention and features of construction will be apparent from the description of the invention given below, in which the terms employed are used for purposes of description and not of limitation.

Reference is now made to the drawings annexed hereto, forming an integral part of this specification, and in which Fig. 1 is a side elevational view of a shoe embodying the inventive sole and wedge construction.

Fig. 2 is a top plan view of the sole and wedge taken substantially on the line 22 of Fig. 1.

Fig. 2a is a top plan view similar to Fig. 2 showing a modification of the structure illustrated therein.

Fig. 2b is a transverse vertical sectional view taken substantially on the line 2b-2b of Fig. 2a. V

Fig. 3 is a vertical sectional view taken substantially of the line 3-3 of Fig. 2. a

Fig. 3a is a transverse vertical section on the line 3a- 3a of Fig. 3.

Fig. 4 is a side elevational view of a modified sole and wedge construction.

Fig. 5 is a transverse vertical sectional view on the line 5-5 of Fig. 4.

Fig. 6 is a top plan view of the sole and wedge of Fig. 5 taken substantially on the line 6-6 of Fig. 4, with portions broken away to show the rib construction.

Fig. 7 is a vertical sectional 'view on the line 77 of Fig. 6.

Fig. 8 is a fragmentary bottom plan view taken substantially on the line 8--8 of Fig. 7.

Fig. 8a is a view similar to Fig. 8 showing transversely curved ribs.

Fig. 9 is a fragmentary bottom plan view taken substantially on the line 9--9 of Fig. 3.

Fig. 9a is a view similar to Fig. 9 showing transversely curved ribs.

As shown particularly in Figs. v1 through 3a inclusive, the inventive sole and wedge construction provides an integral unit 10 formed of resilient material comprising a lower sole portion 12 and an upperwedge portion 14 covering substantially the rearward half of the sole portion. The unit it) is secured directly to a shoe base 15 by suitable adhesives, nailing, stitching, or by other suitable means and methods. 7

The sole portion 12 comprises a platform portion or body 16 from which depends a. series of downwardly and rearwardly inclined, para.lel, transverse ribs or members 18. The ribs, preferably terminate at their lower edges 20 in a rounded conjunction of the front face 22 and the rear faces 24 of each rib. The front and rear faces of each rib 18 diverge upwardly to a. rounded conjunction or juncture 26 with the platform portion or body 16. Y i

The wedge portion 14, integrally formed with the sole portion 12 comprises an outer circumscribing peripheral rim 28 extending upwardly from the body 16 at the outer edge thereof, rearwardly of the forepart of the sole portion 12, and a series of transverse, parallel, upwardly and forwardly inclined ribs'or members 30. Although shown in Figs. 1 through 3a, inclusive, as being integrally formed with the wedge rim 28, the ribs 30 may be formed independently of the rim 28, separated therefrom by a slit or notch 31 at their outer side ends, so that the ribmembers 36 may flex independently of the wedge rim 28. The ribs or members 30 are provided with front and rear faces, 32 and 34 respectively, converging to upper edges 36 terminating in the top surface plane of the wedge portion 14, and diverging downwardly therefrom to a rounded juncture 38 with the body 16. t

In the shank area 40 of the/shoe, the wedge portion 14 tapers downwardly toward the sole portion 12, the wedge ribs 30 being truncated.

The action of the wedge ribs 30, when the unit '10 is secured to the shoe base 15, is that of flexing forwardly as weight is applied to thewedge portion 14 in walking or running. Even in standing, the wedge ribs 30 will tend to flex forwardly under load. Because of the resilient construction of the rib members 18 and 30 and the body 16 employed in the fabrication of the unit 10, the wedge ribs 30 will flex downwardly under load and upwardly when load is released from the wedge, providbers 18.

In Fig. 9 is shown a bottom plan view of the rearward portion of the sole-wedge unit 10. The sole rib members 18 are straight transverse in form.

In Fig. 9a, the rib members 18a are shown curved transversely of the unit 10, to provide resistance to sidewise slip or motion when engaged upon a hard unyielding surface. The reference numerals applied to the straight transverse rib members 18 are also to be considered applied in Fig. 9a.

A modification of the sole-wedge unit 10 is shown in Figs. 4 through 8 inclusive. Added resiliency and cushioning, such as is provided by the upwardly inclined wedge ribs 30, may also be obtained by extending the sole ribs upwardly from below into the body of the wedge portion. 1

in the sole-wedge unit 5i) formed of resilient material, the sole portion 52 comprises a platform portion or body 54 from which depends a series of downwardly and rearwardly inclined, parallel, transverse ribs or members 56 having their front faces 58 and their rear faces 60. diverging upwardly from lower edges 62 to a rounded juncture 64 with the body 54. The unit 50 is also secured directly to the shoe base 15, as is the unit. 10.

In the wedge portion 66 of the unit 56, lying substantially in the rearward half of the unit, extending rib p0r- 2,930,149 Patented Mar. .29, v

tions 68 of the sole ribs 56 extend upwardly into the wedge body or platform 67. The extended rib portions 68, alternating with cavities 70, are integrally formed with the wedge bodyportion 67 and are circumscribed by the outer circumferential rim 72 of the wedge 66.

The rib members 56 are shown straight transverse in form in Figs. 4 through 8 inclusive. However, the members 56 may also be formed in the curved transverse configuration 56a, as shown in Fig. 8a.

The sole wedge units 10 and 50 are made by a molding process of a resilient flexible material such as rubber, flexible plastics, or other suitable compositions. The sole and wedge ribs are flexible in character and yield under load, bending in the direction of incline.

A particular advantage of the instant inventive construction is the achievement of greater flexibility and resiliency in the sole together with a substantial reduction in weight and savings in material, producing economy in unit production. Another special advantage and benefit is the employment of the same resilient material for both the wedge and sole portions, which are made integrally and simultaneously.

The inventive sole-wedge units 10 and 50 function as shock and energy absorbing and cushioning soles for shoes. As weight is applied to the sole in walking or running, the sole ribs of either of the units 10 or 50 flex downwardly and forwardly, absorbing the landing shock and impelling the foot forwardly by means of the energy absorbing resiliency of the rib members. In addition, the wedge ribs 30, in direct supporting contact with the shoe base 15, flex downwardly and forwardly, increasing the amount of absorbed energy and the resultant released energy.

Similarly, in the solawedge unit 50, the sole ribs 56 having a larger cross sectional area and volume by reason of their extension into the wedge body 67 will absorb more energy and thus provide a greater resiliency and impelling movement to the forward motion of the shoe wearer.

The downwardly projecting sole rib members 18 of the sole-wedge unit 10 are considered to have the wedge IlbS 30 as extensions thereof in the body 16, similar to the extended rib portions 68 of the sole ribs 56 in solewedge unit 50. In the former arrangement, the body 16 carries the extension of the lower rib members 18 as upwardly and forwardly projecting ribs 30, the body 16 serving as an intermediate pivoting bar; in the latter modification, the body 54 carries the extension of the lower rib members 56 as upwardly and forwardly extending rib portions 68. The resultant function of either arrangement is greater flexibility, energy and shock absorbing and cushioning effects.

Having described the invention in its simplest terms, it will be understood by persons skilled in the art to which the invention pertains that the features of construction may be changed and varied in greater or lesser degree without departing from the essence of the invention defined in the appended claims.

We claim:

1. In a shoe construction, a shoe base, an integrally formed sole and wedge unit formed of resilient material having a body secured to said shoe base, a sole portion and a wedge portion contiguous with said body, a series of transverse parallel downwardly and rearwardly inclined rib members projecting from said body in said sole portion, said rib members having their front and rear faces conjoined at the lower ends of said members and diverging upwardly therefrom to a juncture with said body, and upwardly directed extensions of said rib members in said wedge portion, whereby when said shoe base bears upon said body under load, said wedge rib member extensions will flex and cushion the shock of motion and contact with a supporting surface, and simultaneously said sole rib members will flex and produce a forward motion of said shoe base relative to said supporting surface.

2. In a shoe construction, a shoe base, an integrally formed sole and wedge unit formed of resilient material, said unit having a body secured to said shoe base, a sole portion at the underside of said body having a series of transverse parallel rib members projecting downwardly and rearwardly from said body, said rib members having their front and rear faces conjoined at the lower ends of said members and diverging upwardly therefrom to a rounded juncture with said body, and a wedge portion in said body having a series of transverse parallel extensions of said rib members disposed within the peripheral limits of said body, each of said extensions lying in the plane of inclination of said sole rib members, whereby when said shoe base bears upon said body under load, said wedge rib member extensions will flex and cushion the shock of motion and contact with a supporting surface, and simultaneously said sole rib members will flex and produce a forward motion of said shoe base relative to said supporting surface.

3. In an integrally formed resilient shoe sole and wedge unit, a body, a sole portion at the underside of said body and a wedge portion at the upper side of said body, a series of transverse parallel rib members project ing at a downward and rearward inclination from said body in said sole portion, said rib members having their front and rear faces conjoined at the lower ends of said rib members and diverging upwardly therefrom to a rounded juncture with said body, and a series of transverse parallel rib members projecting upwardly at a forward inclination from said body in said wedge portion in the planes of inclinations of said sole rib members, said wedge rib members having their front and rear faces conjoined at the upper ends of said rib members and diverging downwardly therefrom to a rounded juncture with said body, whereby said wedge rib members will flex in the direction of inclination to cushion the shock of motion and contact when said unit is engaged upon a supporting surface under load, and simultaneously said sole rib members will flex downwardly and forwardly and produce a forward motion of said body relative to said supporting surface.

4. The construction defined in claim 3, and in which both said sole rib members and said wedge rib members are curved transversely of said unit.

5. The construction defined in claim 3, and in which the front and rear faces of said sole rib members and said wedge rib members are rearwardly inclined.

6. The construction defined in claim 3, and in which said upper wedge rib members are integrally formed with a circumscribing peripheral rim disposed above said body at its outer edge in the area of said wedge portion.

7. The construction defined in claim 3, and in which said upper wedge rib members are formed apart from a circumscribing peripheral rim disposed above said body at its outer edge in the area of said wedge portion.

8. In an integrally formed resilient shoe sole and wedge unit, a body, a sole portion at the underside of said body and a wedge portion in said body above said sole portion, a series of transverse parallel rib members projecting at a downward and rearward inclination from said body in said sole portion, said rib members having their front and rear faces conjoined at the lower ends of said rib members and diverging upwardly therefrom to a rounded juncture with said body, the sole rib members in the area of said wedge portion extending upwardly into said body to a plane above the plane of said sole portion and below the upper plane of said wedge portion, and a circumferential peripheral rim of said body circumscribing said rib extensions at their side ends in the area of said wedge portion, whereby said rib members will flex under load in the direction of inclination to cushion motion of said body relative to said supporting surface,-

and said rib extensions will flex simultaneously with said rib members to increase the shock cushioning values in said rib members. I

9. The construction defined in claim 8, and in which said sole rib members and their wedge rib extensions are curved transversely of said unit.

10. The construction defined in claim 8, and in which the front and rear faces of said sole rib members and their wedge rib extensions are rearwardly inclined.

11. The construction defined in claim 8, and in which said peripheral rim and said wedge rib extensions are integrally formed together.

References Cited in the file of this patent UNITED STATES PATENTS Crocker Nov. 1, Smith Oct. 27, Hubbard Ian. 5, Hallgren Oct. 24, Hoifenberg Oct. 9, Hack June 14, Hack May- 6,

FOREIGN PATENTS France Nov. 29, France Dec. ,6,

Great Britain Oct. 30,

Patent Citations
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US2527414 *Dec 12, 1949Oct 24, 1950Simon Hallgren KarlRubber sole for footwear
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Referenced by
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US3005272 *Jun 8, 1959Oct 24, 1961Frank MakaraPneumatic shoe sole
US3079707 *Dec 14, 1959Mar 5, 1963Colman Benjamin WResilient shoe soles
US3087261 *Oct 31, 1960Apr 30, 1963Forward Slant Sole CompanySlant cell shoe sole
US3087262 *Apr 24, 1961Apr 30, 1963Forward Slant Sole CompanyResilient shoe sole
US3129520 *Dec 19, 1960Apr 21, 1964Herbert FunckOne-piece molded sole for welt shoes
US3947979 *Aug 23, 1971Apr 6, 1976The B. F. Goodrich CompanyMud resistant elastomer
US3961428 *Feb 19, 1975Jun 8, 1976The B. F. Goodrich CompanyMud resistance elastomer
US4075772 *Apr 21, 1975Feb 28, 1978Amilcare CavalieriInsole for footwears
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Classifications
U.S. Classification36/28, 36/59.00C, 36/32.00R, D02/960, 36/37
International ClassificationA43B13/18
Cooperative ClassificationA43B13/181
European ClassificationA43B13/18A