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Publication numberUS2074286 A
Publication typeGrant
Publication dateMar 16, 1937
Filing dateDec 24, 1934
Priority dateDec 24, 1934
Publication numberUS 2074286 A, US 2074286A, US-A-2074286, US2074286 A, US2074286A
InventorsCharles Sullivan
Original AssigneeCharles Sullivan
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Air cushion arch builder
US 2074286 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

March 16, 1937; c:A sU| |vAN 2,074,286

AIR CUSHION ARCH BUILDER Filed Deo. 24, 1934 INVENTOR EY m WM/y@ w IIII ss. Y ATTORNEY `Patented Mar. v16, 1937 .oFFicEf AIR CUSHION ARCH BUILDER Charles Sullivan, Springiield, Mo.

Application December 24, 1934, Serial No. 759,097

1 Claim.

This invention relates to a cushion arch supporter and strengthener and has for the primary object the provision of a device of this character Which may be readily inserted in a shoe and with the latter placed on a foot, the arch of the foot will be pneumatically cushioned and supported so as to strengthen or build up weakened muscles of the arch.

Another object of the invention is the provision of an arch supporter of the above statedl character having pneumatic chambers so located thatl the lifting or cushioning eiiect will be applied to the metatarsus joints of the arch and the chambers are in communication by a rel5 stricted passage to permit equalization of the pneumatic pressure between said chambers and to permit the air to pass from one chamber to the other as the load or weight on one chamber increases and decreases on the other chamber 2O which produces a massaging effect to the arch and also acts to retard the tendency of a rolling motion to the foot on the supporter.

With these and other objects in view, this invention consists in certain novel features Yof construction, combination and arrangement of parts to be hereinafter more fully described,

For a complete understanding of my invention, reference is to be had to the following description and accompanying drawing, in which .0 Figure 1 is a vertical sectional view illustrating an arch supporter and strengthener constructed in accordance with my invention and illustrating the same applied to a shoe and a foot of a person.

Figure 2 is a longitudnal sectional View illustrating the arch supporter and strengthener.

Figure 3 is a sectional view taken on the line 3-3 of Figure 2.

Referring in detail to the drawing, the numeral I indicates a pad shaped to provide a flat heel portion 2, an instep portion 3 and a tread portion 4. The pad is constructed of layers of rubber vulcanized or otherwise secured together to form pneumatic chambers 5 and 6 communicative with one another by ay restricted passage 1. The chamber 5 lies within the instep portion 3 while the chamber 6 lies `within the tread portion 4. The upper or outer walls of both the chambers 5 and 6 are arched both longitudinally and transversely and the inner pad is formed with a flat extension l2, along one of its edges of the same thickness as that of heel 2. lThis part |2,.

so that the pad at the said instep portion is provided With a straight surface or extension. The heel portion 2 is non-chambered and engages the heel of a foot, as shown in Figure 1, lying between said heel of the foot and the heel tread of a shoe. 5 Air is trapped in the chambers 5 and 6 causing the upper wall of the pad to assume a double arch shape, as shown in Figure 1, and provides for the'- arch of the foot cushions, the rear and larger arched portion being directly under the joints 10 between the metatarsus and the front bones of the" tarsus while the other front and smaller arched cushion engages the metatarsus directly rearwardly of the joints between the toes and the metatarsus. Thus it will be noted that all of 15 the bones of the foot are cushioned and that the cuboid bone at its juncture with the middle and inner cuneiform bones and that the calcaneum and astrag'alus bones at their juncture with each other and with the cuboid and with the said 2o inner and middle cuneiform bones, rest directly on the rear and larger arched cushion over the chamber 5. The cushioning and lifting effect is placed on the foot where most needed to strengthen or build up the muscles of the arch. 25

A suitable fabric casing 8 is provided for the pad and the inner edge of the pad intermediate the ends of the latter is offset to form a projection 9 acting to support the inside oi the first or outer cuneiform bone of the arch. 30

During the bending of the foot while walking the chambers cushion the arch and permit the full load to come gradually on the weakened portion of the foot due to the passage 'I permitting the air in said chambers to surge from one cham- 35 ber to the other as the load increases on one chamber and decreases on the other chamber. This action provides to the arch of the foot a massaging effect and also checks the tendency of a roll to the foot which is apparent in arch 40 supporters of a single chamber type. The pad I, between the arched portions 3 and 4 of the chambers 5 and 6 has a connecting wall or web I0 which terminates a slight distance "from the straight inner side Wall Il of the chamber 5 45 and which provides a restricted air passage l between said chambers. The restricted passage 1 permits the air pressure to equalize in said chambers `when not under load and to maintain the pressure in each chamber long enough to help to carry the load for an instant and then to let the full load come gradually on the weakened foot muscles. It is to be noted that the arched portion 4 of the pad is of a width approximately equalling that of the pad so that all of metatarsus 2 bones are supported on this pad while the arch 3 is of a less width and accommodates thereon only the bones of the foot designed to rest thereon and as heretofore set forth.

Having described the invention, I claim:

An insert comprising a rubber pad designed to be arranged in a shoe and to extend from the heel to beyond the shank of said shoe and a fabric casing for said pad, said pad including a flat heel portion, an instep portion anda tread portion, said pad, at its said instep vand tread portions having inner air chambers whose outer walls are arched both longitudinally and transversely and which chambers are divided by a web that has an air communicating port nearest one edge of the pad, and the side Wall of the air chamber in a line With the port being straight and terminating a distance away from the edge of the pad adjacent thereto and the arched top of the air chamber vfor the instep portion being of a less width than that of the tread portion and having one side of its edges disposed over the straight side wall of the chamber to render the portion of the pad outward of said arch'straight and flat and of the same thickness as that of the heel portion.

CHARLES SULLIVAN.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2439545 *Nov 29, 1945Apr 13, 1948Matlas JeanArch support device
US5113599 *Sep 27, 1990May 19, 1992Reebok International Ltd.Athletic shoe having inflatable bladder
US5669161 *Nov 15, 1996Sep 23, 1997Huang; Ing-JingShock-absorbing cushion
US5686167 *Jun 5, 1995Nov 11, 1997Robert C. BogertFatigue resistant fluid containing cushioning device for articles of footwear
US6128837 *Jun 16, 1997Oct 10, 2000Huang; Ing JingThree dimensional shoe vamp air cushion
US6161240 *Jul 15, 1997Dec 19, 2000Huang; Ing-JingShock-absorbing cushion
US6785985Jul 2, 2002Sep 7, 2004Reebok International Ltd.Shoe having an inflatable bladder
US6988329Mar 4, 2005Jan 24, 2006Reebok International Ltd.Shoe having an inflatable bladder
US7047670Jul 2, 2003May 23, 2006Reebok International Ltd.Shoe having an inflatable bladder
US7152625May 24, 2004Dec 26, 2006Reebok International Ltd.Combination check valve and release valve
US7278445Jul 12, 2004Oct 9, 2007Reebok International Ltd.Shoe having an inflatable bladder
US7337560Oct 28, 2005Mar 4, 2008Reebok International Ltd.Shoe having an inflatable bladder
US7340851Mar 29, 2006Mar 11, 2008Reebok International Ltd.Shoe having an inflatable bladder
US7383648Feb 23, 2005Jun 10, 2008Reebok International Ltd.Inflatable support system for an article of footwear
US7448150Feb 28, 2005Nov 11, 2008Reebok International Ltd.Insert with variable cushioning and support and article of footwear containing same
US7513067Jan 12, 2006Apr 7, 2009Reebok International Ltd.Shoe having an inflatable bladder
US7600331May 19, 2008Oct 13, 2009Reebok International Ltd.Inflatable support system for an article of footwear
US7622014Jul 1, 2005Nov 24, 2009Reebok International Ltd.Method for manufacturing inflatable footwear or bladders for use in inflatable articles
US7721465Jan 4, 2008May 25, 2010Reebok International Ltd.Shoe having an inflatable bladder
US7735241Jan 11, 2006Jun 15, 2010Reebok International, Ltd.Shoe having an inflatable bladder
US7930839Oct 7, 2009Apr 26, 2011Reebok International Ltd.Inflatable support system for an article of footwear
US8037623Jun 29, 2006Oct 18, 2011Nike, Inc.Article of footwear incorporating a fluid system
US8151489Apr 9, 2010Apr 10, 2012Reebok International Ltd.Shoe having an inflatable bladder
US8540838Nov 23, 2009Sep 24, 2013Reebok International LimitedMethod for manufacturing inflatable footwear or bladders for use in inflatable articles
US8572786Oct 12, 2010Nov 5, 2013Reebok International LimitedMethod for manufacturing inflatable bladders for use in footwear and other articles of manufacture
US8677652Mar 9, 2012Mar 25, 2014Reebok International Ltd.Shoe having an inflatable bladder
EP0060353A1 *Sep 26, 1981Sep 22, 1982FLUMATIC s.r.l.Orthopedic device for use in the prevention and treatment of foot disorders
Classifications
U.S. Classification36/153
International ClassificationA43B17/00, A43B17/03
Cooperative ClassificationA43B17/03
European ClassificationA43B17/03