Патент USA US2105381код для вставки
_Jan.11,193s. ’ ' ESTENER INsoLE ARCH SUPPORT- Filed Oct. 19, 1935 2,105,381v Patented Jan. 11, 1938 2,105,381 UNITED STATES PATENT OFFICE 2,105,381 INSOLE ARCH SUPPORT Eugen Steiner, Oradea, Rumania Application October 19, 1935, Serial No. 45,786 In Austria June 18, 1935 1 Claim. (Cl. 36-71) Insoles for correcting weak insteps or ñat feet layers being impregnated for example with nitro must, as is known, possess suñicient rigidity to cellulose and stuck on the outer veneers. form a counterbearing for the abnormal foot The veneers I are joined in the manner cus shape. With this object in view such insoles tomary in the making of plywood plates so that Cl were made partly of leather and partly of metal. the grains of two superposed veneers extend at 5 Such insoles, however, do not quite iuliill the right angles to one another. The portion of the hygienic requirements as they impede the blood insole formed by the veneers I is, as can be seen circulation in the whole foot sole, subject the from Fig. 3, so shaped that it is reduced in the tendons and nerves to a continuous painful longitudinal direction of the insole from the pinching, rust after being in use for a relatively middle towards both ends or the end portions 4 short time, and sometimes even break under and 5 are thinner than the middle portion so heavy strain. that the insole is slightly yieldable at these end The invention relates to an insole especially portions but in the main portion possesses suñi for weak insteps and flat feet which overcomes cient rigidity for supporting the arch and the the drawbacks above set forth. The support is heel. The form of the insole is accurately characterized primarily in that it is composed adapted to the shape of the foot to be corrected. of several wood veneers adapted to the shape of The middle portion 6 is convexly curved accord the foot, interconnected like a plywood plate and ing to the abnormality of the foot and the end provided on both sides with a covering of yield portions are provided with depressions 1 and 8 able material, such as leather, intermediate lay respectively in the heel and ball regions. 20 ers of a ñbrous substance being interposed be The insole is bent upwards at both sides in tween the veneers and the covering. 'I‘he ve the transverse direction. The bent up portion 9 neers are preferably reduced in the longitudinal situated on the inner side of the shoe, towards direction of the insole from the middle towards the middle of the body, is higher than the bent both ends so that the support is slightly flexible up portion I0 on the other side so that the insole on these end portions. In this manner an insole is produced which is absolutely free from metal and nevertheless possesses the rigidity necessary for an ortho pedic support, without being moreover absolutely unyielding so that it can slightly deiorm under too heavy loading. The insole according to the invention is so constructed that it forms a longi il tudinal and transverse support for the foot. An embodiment of the invention is illustrated in the accompanying drawing in which: Fig. 1 shows the insole in top plan view. Fig. 2 is a side elevation cf Fig. 1. Fig. 3 is a section on line III-III of Fig. l. Fig. 4 is a section on line IV-IV of Fig. 3. The insole consists of several superposed wood veneers I interconnected by an adhesive sub stance insoluble in water, such as nitro-cellulose, and shaped to correspond to the shape of the foot, and of an outer covering 2 of a slightly yieldable substance, such as leather. Between the veneers I `and the outer covering 2 inter mediate layers 3 of a ñbro'us material, preferably in the form of woven material or fabric, these forms so to say a bed for the joint of the foot, which bed is constructed to correspond with the anatomical proportions of the foot and supports the foot in longitudinal and transverse direction. The insole has perforations I I to allow for 30 perspiration of the foot. The improved insole according to the invention can be made in different shapes according to the kind of abnormality of the foot and the stage of the disease, so that it is possible to correct the 35 abnormality of the foot in stages. I claim: An insole arch support, comprising in combi nation a plurality of thin wood veneer layers interconnected by means of an adhesive insolu 40 ble in Water and covered on both sides with an outer covering of leather, and intermediate lay ers of fibrous material impregnated with a water proofing substance interposed between the outer wood veneer layers and the said outer covering 45 of leather and stuck on the outer veneer layers, the support being tapered towards its edges. EUGEN STEINER.