US1676355A - Insole - Google Patents

Description

- tails and features of construction tending to` f increase the general efliciency and desira- -bility of anfinsole of this particular char- Patented July 10, 1928.

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aiipueatioiniea sentent@ 5., 1.925,1 s ri1f545ay f 'This intenti@ rias'fto; i'stlsf; eral', andfmore "particularlyto those which:

are adapted tocorrect the position and support of the foot within the shoe.

5 Generally stated, the object ofthe invention is 'to provide a noveland improved insole which will raise the heel ateach side thereof, so that the heel is prevented from y rolling to either side.

`10 Another object is to provide a novel and improved construction, wherebythe forward 4portion of the foot, and lthe naturaltrans- "verse arch formation thereof, is insured in a natural manner.

It is also an object to provide certain deacter.l o

To the foregoing and other useful ends, the invention consists in theA matters hereinafter set forth and claimed, and as shown in the accompanying drawings, in which p Figure 1 is al bottom plan of an insole em- 2.5 bodying the principles of the invention;

Figure 2v is a longitudinal section on line 2 2 in` Figure l showing the'insole right V,side up; o

Figure 3 isa transverse section yon line 3 3 in vFigure l, showing the insole right side up, and showing the insole distorted 'by the wei ht of the forward portion of the foot, there y causing the forward portion .ofthe foot to have the ltransverse arch formation in a natural manner, so that thef weight of the foot is thrown upon the" metatarsal joints4 of the large and small, toes, thus lrelieving the 'joints between from weight, or at least reducing the pressure thereon; and

Figure 4 is a transverse section on line l prises a fiat upper piece o-f cloth or leather 1, ,preferablyy of the shape or outline A shownin Figure l. The rubber or other f resilient material 2 is suitably fastened upon the' lower surface of said cloth or leather and shaped as'shown, having, preferably, small dents or recesses 3 in the lower surface thereof. The rear portion of the rub- 4 4 fber or other resilient material is cut awayl ti?v .PP-Ovide opening; having edges 4',` as

lor'rna'terial 'is beveled'or"runded'at 5 'at its vouter edge, asV shown. The lower surface 6` Slip-wn, abile thermal; para@ sf tiembre-1f* of the rubber or other material surrounding the opening 4 is preferably beveled on its under side, as moreclearly shown in Figure 2, and thecloth "orleath'er 1 may be omitted f 65,

above the -opening between the edges 4,v as maybe deSired. o Y Y When the insole islinserted ina shoe, with the cloth orleather l'uppermost, the weight d i of the heel will distort the rearportions of Y y, the insole, as shown in Figure 4, so thatthe beveled surface 6 will be held flatwise against theinnersurface of the heel ofthe shoe, and so that the cloth or leather 1 will assume an inclined position, as; shown, at each side of the heel, thus bracing the heel over in either direction.`

The front portion of the insole vwill be extended under the front portion of the foot, Y

and under the metatarsal joints ofthe toes,

` at each side and preventing it from rolling Y andY this front portion will'be @distorted as shown in Figure 3 of the drawings, whereby an arch will be formed between the two natural points of support of the frontportion of the foot, transversely of the afoot, the lower surface ofthe rubberor other resilient material being'flattened down upon the in- Vner surface ofthe sole of the shoe, while the upper surface. of the insole will begrounded to insure the said vtransverse arch-formation of the front portion of the foot. Thus, in effect, the rear portion of the in# sole rolls up'or rises, so to speak, at each side i of the heelto prevent rolling over of the heel, while the front portion of the insole,

y y in Vefl".ect, rises at the transverse center thereof 1 to lift the intermediateinetatarsal joints, thereby topermit the weight of the foottoW rrest upon the metatarsal' joints of the large 5 and small toes of the foot and to -relieve the pressure upon the intermediate portions ofv the arch, thus formed transversely, and'nat urally,'for the front portion of the foot.A

and described, the foot is insured a' threepoint bearing, soto speak,.one point being at the heel, another point being at the base of the large toe, and the other point being vatthe base of the small toe, which isthe natural condition of the foot when in action on the ground.V s

Thus, with'the insole construction shown" v p los] llo

' vWithout disclaming anything, and .with`V i out'prejudioe to any novelty disclosed, what I claim ,as my invention is:

An insole for shoes, normally Hat on its entire upper surface, so that the entire upper surface of the insole is in the saine plane,

composed of flexible and resilient material adapted under foot pressure to conform to the oot and the shoe, comprising a. rear portion transversely relatively thick at the edge and thin toward the middle and there by adapted to roll up or rise at each side of the heel, by distortion thereof, and having a front portion transversely relatively thick at the middle and thin at the edges and thereby adapted, effect, When the side edges are depressed by the Weight of the foot, to rise at the transverse middle portion thereof to insure the transverse arch formation for `the "'oot.

- Specifica-tion signedthis 28th dayrol vA u- 20 gust,1925.V y SAPERSTON.

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