US2672698A - Form-fitting sock lining - Google Patents

Description

March 23, 1954 c. v. WATSON 2,672,698

FORM-FITTING socx LINING Filed Nov. 29, 1952 Mm 1 7414. fig;

Patented Mar. 23, 1954 UNI TED S TATES PATENT OFFICE aerasss FoRiinFiTTING so'cK LiNiNG Carlisl e 'vl Watson, Auburn, Maine Application November 29, 1952, Serial No. 323,134

1 Claim. 1

This invention comprises a. new and improved form-fitting sock lining for shoes having pronounced transverse curvature at the inside shank portion for supporting the arch of the wearers foot.

The problem of providing a flexible sock lining that will lie fiat in the bottom of a shoe provided with an upwardly projecting support or cookie for the inner longitudinal arch of the foot was solved to a large degree by the invention of my prior Patent No. 2,413,534 dated December 31, 1946. That patent describes the expedient of providing a sock lining with a cookie insert piece larger in its area than the projected area which it is to cover in the inside shank curve of the sock lining and by securing such insert so as to throw a spring into it causing the insert piece normally to stand up in a convex curve while the body of the sock lining lies flat on the flatter surface of the shoe bottom. A sock lining so constructed is given the necessary three dimensional contour required to fit smoothly upon an underlying insole having an arch supporting formation.

While the sock lining of my said prior patent has been entirely satisfactory in structure and has remained smooth and free of wrinkles in wear, it necessitates considerable additional shoemaking expense and requires the services of skilled operators in its production. The present invention is based on my discovery that the desired results may be secured at considerably less cost by utilizing a sock lining having a. continuous integral body with an inside shank portion extending outwardly in a cookie extension and being set off and defined from the body of the sock lining by a curved line of pronounced indentations. This line of indentations provides, in effect, a hinge line connection and a stiffening ridge between the body of the sock lining which conforms only to the longitudinal curvature of the shoe bottom and the cookie extension which constitutes a prominence sloping upwardly above the plane of the body of the sock lining and which must present a smooth three dimensional curvature.

The improved sock lining of my invention accordingly obviates the necessity of providing separate cookie inserts and eliminates the operation of attaching the insert in a sprung or distorted condition. On the other hand, it achieves all the desired results and provides a, form-fitting sock lining which may be produced from an integral blank by a single stamping, molding or embossing operation.

These and other features of the invention will be best understood and appreciated from the following description of a preferred embodiment thereof, selected for purposes of illustration and shown in the accompanying drawings in which:

Fig. 1 is a plan view of the flat blank,

Fig. 2 is a similar view of the finished sock lining, and

Fig. 3 is a sectional view on the line 3-3 of Fig. 2 but on an enlarged scale, showing in addition an underlying pad.

The sock lining may be out from calf upper cookie extension 12 of convex edge contour. The blank is normally fiat and is represented in Fig. 1 with its grain or finished surface uppermost as it is eventually positioned in the shoe.

The sock lining is completed by placing the blank in the proper location between suitable molding dies which are constructed and arranged to form a curved line I3 of separate, repeated and pronounced indentations. This line I3 coincides with the normal inside shank curvature of the corresponding insole and forms in effect a curved hinge line of connection between the flat body of the sock lining and the cookie extension IL. The molding operation which is effected by the molding dies simultaneously with the formation of the indented line I3 fashions the cookie extension l2 into an upwardly convex uniformly curved contour, with a downwardly extending stiffening ridge in the line of indentations. This closely approximates the contour of the arch supporting pad M or other support which is located beneath it in the shoe bottom as indicated in Fig. 3. A shank fitting pad 14 of convex curvature may be assembled in the shoe bottom by being cemented to the extension l2 of the sock lining, or it may be independently secured before the sock lining is placed in position. In other cases the arch supporting section will be molded into the insole itself, but in whatever manner the transverse supporting curvature is secured in the shoe bottom it will be smoothly fitted by the improved sock lining of my invention.

The present application is filed as a substi tute for and continuation-in-part of my prior application, Ser. No. 186,219 filed September 22, 1950, now abandoned in favor of the present application.

Having thus disclosed my invention and degaging grain surface providing a hinge line conscribed in detail a preferred embodiment therenection and a downwardly extending stiffening of, I claim as new and desire to secure by Letridge, the extension being shaped as a convex ters Patent: prominence sloping upwardly above the plane of An improved form-fitting sock lining for shoes 5 the body of the sock lining, and an arch fitting having both longitudinal and transverse curvapad of convex upward curvature secured to the ture at the inside shank portion for supporting under a of the a d te o the inner longitudinal arch of the wearers foot, CAR I L V. WA SON- said lining comprising a continuous integral body of thin flexible sheet leather with a grain sur- 10 References cued in the me of thls patent face and having the contour of the insole with UNITED STATES PATENTS its inside shank portion extending outwardly in a cookie extension of convex edge contour, the 32??? gi g et a1 25 said extension being set off and defined from the 2063625 Rigandi 1936 body of the sock lining by a curved line of sep- 15 2237892 Squire j 1941 arate and repeated indentations in its foot en-

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