Title:
Arch support device
United States Patent 2439545


Abstract:
The present invention relates to shoe structures, more particularly to a device in the nature of a support which may be fixed in a shoe or may be inserted therein, the purpose thereof being to correct certain defects in the feet of the wearer. It often occurs that the feet of an individual...



Inventors:
Jean, Matlas
Application Number:
US63151745A
Publication Date:
04/13/1948
Filing Date:
11/29/1945
Assignee:
Jean, Matlas
Primary Class:
International Classes:
A43B7/14
View Patent Images:
US Patent References:
2366116Corrective means for the human foot1944-12-26
2081474Cuboid-metatarsal arch support1937-05-25
2074286Air cushion arch builder1937-03-16
1986646Foot support1935-01-01
1757904Self-adjusting arch support1930-05-06
1717968Arch-supporting footwear1929-06-18



Foreign References:
AU2444035A
GB497744A1938-12-28
Description:

The present invention relates to shoe structures, more particularly to a device in the nature of a support which may be fixed in a shoe or may be inserted therein, the purpose thereof being to correct certain defects in the feet of the wearer.

It often occurs that the feet of an individual become pronated or everted by treading on the same while wearing shoes. Flat feet are occasioned by a partial or full deformation or sagging of one or both of the arches of the foot.

As a result of such deformity, the individual suffers considerable pain in walking. It is, therefore, highly desirable to provide means for building up such flattened arches in order to again restore the proper position of the bones and insure normal muscle play, thereby avoiding the aforementioned disturbances.

When an individual walks barefooted or without the modern, relatively stiff shoe, and upon a natural surface, such as sand, sod or the like, the muscles of the feet have full play and are properly exercised. Therefore, such an individual does not usually suffer from flat feet as the feet of primitive races prove. The introduction of the modern shoe was of considerable advantage in that it protected the feet from injury, due to outside sources, such as stepping on stones, or being hit by missiles. However, at the same time, the shoe caused internal difficulties to arise, partly because it does not consider the physiologically and anatomically adequate fitting.

It is among the objects of the present invention to overcome such disadvantages and difficulties and to provide a structure which may be introduced into a shoe which will correct deformities and eliminate the pain of flat feet.

It is also among the objects of the present invention to provide a structure of this type which is simple and compact and which may be removable so that some or all of its parts might be cleaned or replaced.

The main principle of the invention consists of the combination of a rigid corrective rudderlike structure for the heel and an elastic automatically correcting functional middle- and forefoot support.

In practicing the present invention, there is provided a base which may be in the form of the usual inner sole, and having perforations therein, and which constitutes the basis of the present device. On the inner sole there is formed a relatively high raised area or portion just below the scaphoid bone. This gradually slopes down to the outer portion of the heel, said heel portion being relatively low compared to the scaphoid portion. There is also provided an outer border wedge along the side of the inner sole and a cross bar extending from the forward edge thereof across the inner sole just below the metatarsal arch. This cross bar has a metatarsal excavation therein.

A pad is provided, usually consisting of a water-proof, flexible material filled with a deformable or flowable pressure displaceable substance. The pad is of such size and shape that it covers the cross bar and the outer wedge and contacts with the scaphoid portion and raised heel.

In use, the act of walking causes a corrective shift of the contents of the pad and because of the relative rigidity of the cross bar and outer border, the material is forced inwardly under the longitudinal arch of the feet, thus gradually the arch is built up and the muscles supporting the same have full play because they now have a physiological function to perform. The inner edge of the cross bar also has an extension reaching toward the medial side of the big toe joint.

This further accentuates the effect of forcing the soft material under the longitudinal arch to perform its intended function.

In the accompanying drawings constituting a part hereof, in which like reference characters indicate like parts, and in which: Fig. I is a top plan view of an inner sole having the elements of the present invention formed thereon; Fig. 2 is a similar view of the pad of deformable or flowable material which fits on the inner sole; Fig. 3 is a vertical cross-sectional view taken through the assembled device, and along 3-3 of Fig. 1, and Fig. 4 is a view similar to Fig. 3, taken along the line 4-4 of Fig. 1.

There is provided an inner sole 1 of soft flexible material, having a series of perforations 2 therein. At the scaphoid area 3 there is a builtup apex portion of considerable height, and adapted to press on the scaphoid bone. A raised heel portion 4 has its front edge 5 extending diagonally rearwardly from its junction at 6 with scaphoid portion 3 and terminates at the outer edge 7 of the inner sole.

An outer border wedge 8 relatively narrow at 9 where it joins heel 4 gradually increases in width to a maximum at the forward portion 10 thereof. A cross bar is formed by a raised part 11 having an arcuate central portion 12 defining a metatarsal excavation 13. The inner portion 14 of said cross bar is extended rearwardly a substantial distance to a point near the big toe bone.

A pad 15 has its edge 16 so formed that it rests upon wedge 8. The edge is curved upwardly as shown at 17 so as to partially embrace the outer edge of the foot. The inner edge 18 of pad 15 conforms with the inner edge of the inner sole and has a raised portion 19 to partially embrace the inner part of the foot. This prevents accidental displacement of the pad. The forward part 20 thereof rests on the cross bar and the rear portion has a recess 21 adapted to fit around scaphoid portion 3.

As shown in Fig. 3, the pad consists of a container made of a suitable flexible material 22, such as duck. It is filled with a suitable mixture, which in one aspect of the invention may be of a clay base suitably compounded to make a deformable or flowable mixture which can be displaced under the pressure of the foot. The pad is usually held in place by suitable means such as snap fasteners, adhesives or any other means.

A cover 24 similar to inner sole I is provided with perforations 25 and is placed at the top of the pad to cover the same. The front and rear ends of cover 24 may be suitably secured to the inner sole as by adhesive, snap fasteners, or any other means which will allow the removal of the cover for replacement of the pad.

In actual use a pad with sufficient filling material to build up the necessary support is introduced and the device placed in the shoe. But sensitive feet often cannot stand such drastic change of the position of the foot muscles and bones. To alleviate the pains, a pad of relatively small contents may be first introduced and the device placed in a shoe. After the wearer has used the same for some time, most of the material in the pad is forced into the region of the longitudinal arch. Therefore it raises the arch and at the same time gives the muscles thereof exer-cise, so that they become strengthened. Then the pad may be removed and replaced by a thicker pad, and the use thereof still further increases the height of the longitudinal arch and further strengthens the muscles. This may be repeated until the foot is fully corrected.

Although the invention has been described setting forth a single specific embodiment thereof, it will be apparent to those skilled in the art that various changes in the details of construction mray be made within the spirit of the invention.

For instance, the material used in the pad need not be a soft deformable solid material, but may be air or other gas, or it may be a liquid, such as glycerine or it may even be made of synthetic or other plastic materials. It is necessary that the material flow under foot pressure. The covering for the material need not be duck, but may be of various other materials, such as waterproofed cloth or the like. The scaphoid and heel portions should be of relatively stiff material, as also the cross bar and outer wedge. Many materials are suitable for the purpose, such as cork, leather, felt and hard rubber. It is desirable that such materials have some elasticity, but they should retain their form under the pressure of the feet.

These and other changes in the details of con-truction may be made within the spirit of the invention and the invention is to be broadly construed and not to be limited except by the character of the claims appended hereto.

I claim: 1. An arch support comprising a flat base having the outline of a foot, a raised portion thereon in the scaphoid area extending rearwardly along the inner edge of the heel to the rear thereof, said base having a relatively narrow and flat outer border wedge, the outer edge of said heel being lower than the inner edge, a flat metatarsal crossbar on said base having a central metatarsal excavation, a pad of displaceable deformable material on the central part of said base and resting on said outer wedge, said pad having a recess in the scaphoid area adjacent to said raised portion, said pad extending ý4 to the inner edge of said support, said pad being thickest at said inner edge and tapering to the outer edge of said support, the thick portion of said pad overlying said crossbar at said metatarsal excavation.

2. An arch support comprising a flat base having the outline of a foot, a raised portion thereon in the scaphoid area extending rearwardly along the inner edge of the heel to the rear thereof, said base having a relatively narrow and flat outer border wedge, the outer edge of said heel being lower than the inner edge, a flat metatarsal crossbar on said base having a central metatarsal excavation, a pad of displaceable deformable material on the central part of said base and resting on said outer wedge, said pad having a recess in the scaphoid area adjacent to said raised portion, said pad extending to the inner edge of said support, said pad being thickest at said inner edge and tapering to the outer edge of said support, the thick portion of said pad overlying said crossbar at said metatarsal excavation, the inner and outer edges of said pad extending upwardly to partially embrace the foot of the wearer.

3. An arch support comprising a flat base having the outline of a foot and extending along the rear, -outer edge and front only of said support but not along the inner edge, a raised portion thereon in the scaphoid area extending rearwardly along the inner edge of the heel to the rear thereof, said base having a relatively narrow and flat outer border wedge, the outer edge of said heel being lower than the inner edge, a fiat metatarsal crossbar on said base having a central metatarsal excavation, a pad of displaceable deformable material on the central part of said base and resting on said outer wedge, said pad having a recess in the scaphoid area adjacent to said raised portion, said pad extending to the inner edge of said support, said pad being thickest at said inner edge and tapering to the outer edge of said support, the thick portion of said pad overlying said crossbar at said metatarsal excavation.

4. An arch support comprising a fiat base having the ouiline of a foot, a raised portion thereon in the scaphoid area extending rearwardly along the inner edge of the heel to the rear thereof, said base -having a relatively narrow and flat outer border -wedge, the outer edge of said heel being lower than the inner edge, a flat metatarsal crossbar on said base having a central metatarsal excavation, a pad of displaceable deformable material on the central part of said base and resting on said outer wedge, said pad having a recess in the scaphoid area adjacent to said raised portion, said pad extending to the inner edge of said support, said pad being thickest at said inner edge, and tapering to the outer edge of said support, the thick portion of said pad overlying said crossbar at said metatarsal excavation, said pad being detachable from said base, and a cover on said pad and base.

JEAN MATLAS.

REFERENCES CITED The following references are of record in the file of this patent: UNITED STATES PATENTS Number Name Date 1,717,968 Gartner --------- June 18, 1929 Number 1,757,904 1,986,646 2,074,286 2,081,474 2,366,116 Number 10 24,440/35 497,744 Name Date Free ----- __-- _ May 6, 1930 Schade -- _-------_ Jan. 1, 1935 Sullivan ----.---_ _ Mar. 16, 1937 Burns ---------_ May 25, 1937 Ledermann _______ Dec. 26, 1944 FOREIGN PATENTS Country Date Australia ----- - Sept. 13, 1935 Great Britain ------_ Dec. 28, 1938