US1606187A - Foot-corrective appliance - Google Patents

Description

Nov. 9, 1926. 1,606,187

W. M. SCHOLL Foo'r CORRECTIVE APPLIANCE Filed April 2, 1925 Patented Nov. 9, 1926.

maaier WILLIAM 1v1. soHo'LL, or CHICAGO, ILLINOIS. a

FooT-,oonancfrivn Arr-Linnen.'

'Application vfiled. April 2,

The invention relates .to foot corrective appliances.

One of .the objects of the invention is to provide a yielding, resilient means to sup port the outer longitudinal arch of the foot by raising and supporting the front end of the o s calcis, the cuboid and the posterior end of the fifth metatarsal bones of the foot near where they articulate, to induce outward tilting of the footvin weak inwardly rolled feet and to relieve the outer plantar muscles of fatigue and undue stress.

Another object fis to provide a yielding heelcushion to receivethe os calcis and its covering Vand which isvresilient so .as to serve as a shock absorber` where the Vshock is produced by impact of the heel of the foot of the walker with an unyielding roadway.

A further object is-tomake the upper surfaces of the heel-receiving cushion inclined P inwardly at an angle to a horizontal plane to encourage the foot to tilt outwardly about the tibia so as to restore and to maintain it in its natural position. Y

The device is intended to correct the tendency to walk on the outer longitudinal edge of the foot in which the inner plantar surfaces, or soles of the feet are raised, as when the legs of the afflicted person are outwardly bowed.

Other objects, advantages and benefits will become apparent to persons skilled in the art, from a` consideration of the following description, when taken in conjunction with the drawings, wherein:

Figure 1 is a plan view of the device.

Figure 2 is a longitudinal section taken on line IL-II of Figure 1.

Figure 3 is a transverse section taken on line III-III of Figure l.

Figure 4; is a rear view ofthe devicein elevation.

As shown on the drawings:

The preferred form of the device is shown in plan view in Figure 1, in which the reference numeral 5 indicates a resilient triangular plate, made preferably of soft rubber. It is triangular in form having a base line 6 and a line 7 describing the hypotenuse -and a rear curved leg 8. The device shown is for insertion in a shoe near the heel thereof upon the right foot on which the shoe is to be worn. The plate 5 tapers fore and aft from the rear portion 9 to the front portion 10, just in the rear of the vertical protuberance l1, and it also tapers from the base line 192,5. serial No. `20,051.`

6 to the hypotenuse 7 as more clearly shown in Figures?, and'.V

To hold the device 5 in vproper position in the shoe I prefer to use a flexible ,plate 12, preferably of leather, tov which the :plate 5 .dis cemented or otherwise secured. The plate l2 is .skived across its front edge as at 13. rlhe plate 12 is somewhat larger in outline than the plate 5 leaving amargin 14 between the two and the outside of the rear portion of the shoe heel. I prefer to perforate the plates 5 and 12with registering spaced erforat'ions 15, the axes of which are pre erably in verticalplanes and 'thereby leaving an imperfforate margin 16 around the group of perforations. this is to render the enclosed -perforated lZone of the plate 5 less resistant to pressure so that the heel portion of the foot will make 'a deression more or less into the yielding body of the plate 5 and the outer surface of the heel will rest on the imperforate margin which will bear the weight of the wearer imposed thereon. Pressure is not imposed upon the central part of the os calcis of the foot but around the more rigid edge thereof. The plate 5 is tapered as described for the purpose of causing the right foot, in the present instance, to be tilted outwardly or the angle inwardly to prevent .the wearer from walking upon the outer longitudinal edge of the foot and shoe.

The yielding protuberance 11 supports the posterior portion of the fifth metatarsal and tends to support the front end of the os calcis and the intervening cuboid bone of the foot and thus it restores and maintains the outer longitudinal arch-forming bones in their proper positions and relieves the outer plantar muscles of undue strain until the strength of the foot has been recuperated and the parts are able to maintain their natur-al form and position unassisted. The perforations 15 also serve as means for The object of I Ventilating through the inner Zone ofthe u soft rubber plate, and furthermore, they contain air which serves, more or less, to produce a cushioning effect upon the plantar surface of the heel. The plate. 5 serves as a shock absorber to relieve the foot-of the order to meet .the deformed conditions as they may beV found.

The protuberance 11 is located at a point Where the base line 6 and the line of the hypotenuse 7 meet and at the front end of the device which is about the proper location for performing the functions described.

It is manifest that the part 5 may be used alone and properly secured Vin the heel of the shoe, but it is best to use the leather plate 12 and secure the part 5 thereto as this prevents the shifting of the part 5 in the shoe and produces, to some extent, the elevation of the heel which is one obj ect of the device, as means for lifting the outer longitudinal arch.

Having described my invention, what I claim as new and desire to secure by Letters Patent, is

1. A cushion device for insertion Within a shoe, comprising a resilient plate generally triangular in plan outline with its base line substantially parallel with the outer edge of the heel part of the shoe and its rear out line rounded to conform generally to the innerI rear part of the shoe heel, said plate being tapered transversely and inwardly from the aforesaid base line toward the hypotenuse of the aforesaid outline, said plate having its central zone perforated at frequent intervals by spaced openings leaving an imperforate marginal edge and having a protuberance extending vertically near the intersection of said base and said hypotenuse to support the bones of the outer longitudinal arch of the foot.

2. A cushion device for insertion Within a shoe comprising a resilient plate of soft rubber, generally triangular in plan outline,

v with its base line substantially parallel with the outer edge of the heel part of the shoe and its rear outline rounded to conform generally to the inner rear part ofA the shoe heel, said plate being tapered transversely and inwardly from the aforesaid base line toward. the vhypotenuse of the triangle and forwardly from said rear curved end; anV underlying plate of relatively rigid material to which the resilient plate is attached, both plates having spaced apertures extending vertically therethru leaving an imperforate margin near thelbase and rounded rear outline of the superposed resilient plate.

In testimony whereof I have hereunto subscribed my name.

WILLIAM M. SCI-IOLL.

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