US2563438A - Method of forming shoe outsoles - Google Patents

Description

Allg- 7, 1951 w. WEIDNER 2,563,438

METHOD OF FORMING SHQE OUTSOLES USING A FORCE FIT Filed Jan. 14, 1949 l). WILLIAM wszuowmL A Patented Aug. 7, 1951 METHOD OF FORMING SHOE OUTSOLES USING A FORCE FIT William Weidner, Greenwood Lake, N. Y. Application January 14, 1949, Serial No. 70,879 y 1 Claim. l

This invention relates to an improved method of making shoes and to a novel sole construction therefor.

A principal object of the invention is the provision of a simple, efiicient and economical method of fabricating a shoe having improved flex= ibility and wearing qualities and affording a cushioned walk.

Another object of the invention is the provision of a method of the character Vindicated which eliminates the troublesome necessity of .a special edge trimming or machining of the sole as is re-s quired in conventional methods of shoe fabrication, thereby conserving time and expense.

Further objects and advantages of the present invention will be readily apparent in the course of the following detailed description taken in connection with the accompanying drawing which illustrates a preferred embodiment of the inven tion and wherein:

Fig. 1 is a sectional view illustrating the initial stage of the method involving lasting the uppers over the insole of the shoe taken along the line S-S of Fig. 3;

Fig. 2 is a sectional view illustrating a subsequent stage of the method wherein a resilient edge stripping is secured about the marginal edge of the uppers;

Fig. 3 is an exploded perspective View illustrating another stage of the operation with the outsole about to be secured to the insole within the marginal edges of the resilient stripping; and

Fig. 4 is a sectional view of the nal stage of the operation with the outsole firmly seated in position.

The edge trimming of shoe soles by special machining and nishing operations involves the use of auxiliary equipment and the expenditure of considerable time and has consequently constituted a substantial problem to the shoe industry. The practice of the present invention not only eliminates the necessity of finishing operations for the sole of the shoe but generally simplifies and facilitates the fabrication of shoes characterized by enhanced durability, flexibility and which afford a cushioned Walk to the wearer.

The invention contemplates the lasting of the shoe uppers over the insole which is attached to the last bottom. The marginal edges of the uppers are secured to the insole in any suitable manner, as by gluing. A resilient edge stripping of rubber or similar material is then glued or secured in .any other manner about the marginal edges of the uppers to form the outer marginal portion of the wearing surface of the shoe. An

outsole is then inserted within the marginal edge stripping and suitably bonded to the insole and inner edges of the stripping to form with the stripping the completed outer Wearing surface of the sole of the shoe.

Referring now to the drawings in greater detail, the shoe uppers are generally designated by reference numeral lil and are initially cut according to predetermined patterns and sizes in .any preferred conventional manner. Uppers IU are then fitted and stitched together. The marginal edges of uppers ID are then secured, as by gluing, to the insole I I. The latter step of the operation may be conventionally accomplished by fitting the stitched uppers I0 over a last I2 to the bottom of which the insole II has been previously attached, as shown in Fig. 2.

A resilient stripping I3 of rubber or similar material is then secured, as by gluing, about the marginal edge of uppers I IJ, as shown in Figs. 2, 3 and 4, said stripping forming the outer marginal portion of the wearing surface of the sole of the shoe, as will appear more fully hereinafter. The outsole I4 is preferably made of a good grade of sole leather or similar material and is shaped and dimensioned in conventional manner to conform to the sole of the foot. Said outsole I4 is inserted Within the boundaries of marginal edge stripping I3 to form therewith the complete outer wearing surface of the sole of the shoe, as shown in Fig. 4. The outsole may be bonded to the outer surface of insole I I and to the inner edges of stripping I3 to form a firm, water-tight seal by means of glue, cement or other suitable bonding means. The thickness of outsole I4 is such that the surface of marginal stripping I3 will be flush with the outer surface of said outsole so as to form a continuous, smooth wearing surface for the sole of the shoe.

In order for outsole I4 to seat firmly in position within the boundaries of marginal stripping I3, the outsole is preferably cut slightly oversize, for example, als of an inch oversize 'with respect to the internal dimensions of the secured marginal stripping.

By the practice of the invention and the provision of a resilient marginal stripping I3 secured to the uppers I0 a cushioned Walk is imparted to the shoe and no special trimming or edge finishing operations are required. The resilient marginal stripping I3 forms the outer periphery of the wearing surface of the sole of the shoe where the wear is usually greatest and the i life of the shoe will be increased over those of conventional design and manufacture because of the resilience of the stripping in contrast to the poorer wearing quality of relatively stiff leather. Moreover these advantages may be achieved by the described method of fabrication comprising a minimum number of simple and inexpensive steps.

It will be understood that a heel (not shown) may be secured in place in any desired manner to complete the fabrication of the shoe and that While the drawing illustrates a ladies shoe `and the method of fabrication hereinabove described is perhaps most suitable in the fabrication of ladies shoes it may also be employed advantageously for mens and childrens shoes as well.

Since certain modifications may be made in the method of the present invention without departing from the scope thereof it is intended that all matter contained in the foregoing specification and shown in the accompanying drawing be interpreted merely as illustrative and not in a limiting sense.

What is claimed is: Y

The method of fabricating shoes which comprises the steps of attaching an insole to a last, lasting the uppers against said insole, bonding the marginal edges of the uppers to said insole,

securing a resilient stripping of rubberlike mate- 25 rial along the marginal edge of said uppers to form the outer peripheral portion of the Wearing sole of the shoe and cementing a leather outsole which is slightly oversize with respect to the inner dimensions of said secured peripheral edge stripping against the outer surface of said insole and against the inner edges of said stripping, whereby to rmly seat said outsole and to form a wearing surface wherein the outer surfaces of said stripping and said outsole are substantially coplanar and transversely continuous.

WILLIAM WEIDNER.

REFERENCES CITED The following references are of record in the 111e of this patent:

UNITED STATES PATENTS Number Name Date 1,735,986 Wray Nov. 19, 1929 1,904,085 Rizzo Apr. 18, 1933 1,937,074 Vicente Nov. 28, 1933 1,989,969 Carpenter Feb. 5, 1935 2,058,975 Gray Oct. 27, 1936 2,246,480 Weidner June 17, 1941 2,299,305 Ciaio Oct. 20, 1942 2,350,852 Wehr June 6, 1944 FOREIGN PATENTS Number Country DateV 23,276 Norway Apr. 28, 1913Y 26,047 Great Britain Nov. 13, 1913

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