US1744759A - Insole - Google Patents

Description

Jan. 28, 1930. H. 13.v GORMAN 1,744,759

INSOLB Filed May 17. 1927 'Il rIIIYIIIIIIIIIIIIIIJ IA l @Zyw Patented Jan. 28, 1930 UNITED STATES PATENT OFFICE HENRY B. GORMAN, OF LYNCHBURG, VIRGINIA, ASSIGNOR TO UNITED SHOE MA- CHINERY CORPORATION, OF PATERSON, NEW JERSEY, VA CORPORATION OF NEW JERSEY :NsoLn Application led May 17,

This invention relates to insoles and is illustrated with reference to insoles for use in the manufacture of shoes in which an upper is lasted over an insole, and an outsole,

t; the upper and the insole are secured together by through-and-through fastenings.

Objects of the invention are to provide an improved insole to which the upper may be attached by metallic fastenings without any V liability of the fastenings appearing on the inner face of the insole, to provide an insole the outer surface of which, after attachment of the upper, will be smooth and substantially unbroken, as well as to provide an insole which will be convenient to use and cheap to manufacture.

As herein illustrated, the invention provides an insole comprising two layers of material which are coextensive with the last bottom, the outer layer having cuts extending through it and providing tabs which may be readily raised' so that a clinching tool may be placed beneath the raised portions to clinch against the lower face of the outer layer a -5 Afastening driven through the upper and the outer layer. In one illustrated form of the invention, such tabs are provided at frequent intervals along the margin of the outer layer of the sole, the attached ends of the tabs being spaced' from the edge of the sole and the free ends of the tabs being directed inwardly.

Each of the tabs is therefore adapted to receive a fastening driven through the upper ,4 and the tab, which fastening may be clinched on the inner face of the tab by a clinching tool placed beneath it. After the upper is lasted, the tabs may be forced into the recesses from which they were cut so that the outer surface of the insole will he smooth and substantially unbroken.

In lasting the toe and heel ends of shoes, the upper materials are frequently lasted over the bottom of the insole and secured by tacks which are driven through the upper and the insole and clinched by iron plates on the ends of the last. Accordingly, the lasting tabs, as illustrated, do not extend beyond the tip line and breast line. It is to be understood, however, that the tabs may be continued toward the ends of the insole so that the ends 1927. Serial No. 192,037.

of the shoe may be lasted lin the same way as the sides.

Other features of Ythe invention will appear more fully from the following description when read vin connection with the accompanying drawing and will be pointed out in the claims.

In the drawing,

Fig. 1 is a perspective View of a shoe having an insole embodying the present invention;

Fig. 2 is a detail view ofthe insole showing the lasting tabs;

F i0. '3 is a perspective View of an insole shfwing a modified form of the invention; an

Fig. 4 is a transverse section of a shoe having an insole of the form shown in Fig. 3.

Insoles embodying the present invention are preferably of sheet-material, such as buckram, canvas or split leather, the illustrated material being frictioned canvas of such Weight that two thicknesses of it will provide proper strength and flexibility for an vinsole for the type of shoe being made. Thus the insole illustrated in Fig. 1 consists of two a'dhesively connected pieces of soleshaped frictioned canvas 10 and 1'2, one overlying the other. Anadvantage of employing frictioned Canvas is that the two layers coniprising the insole may be caused to adhere simply by being pressed together. It should be understood, however, that for either or both of the layers 10 and 12, material other than frictioned canvas may be substituted, and other means of securing the insole layers together may be employed. Conveniently, although not necessarily, the pieces 10 and 12 are died out or otherwise cut to insole shape before one is placed on the other. The layer 10, which constitutes the outer layer of the insole, has U-shaped cuts lt 1) or V- shaped cuts 15 (Fig. 2), preferably made prior to the fastening of the two layers toget-her and forming tabs 16 extending from the inner face of the insole. The width of the margin 18 of the insole between the edge of the insole and the attached end of the adjacent tab is sufficient to allow an outsole and an upper to be secured together by stitches passing through the solid margin 18 of the insole outside of the line of tabs.

In use, the insole is placed upon the bottom of a last 20 with the face having the tabs 16 outermost, the two layers of the insole being coextensive with the last bottom. An upper 2-2 is placed upon the lastand lasted over the margin 18 of the insole, successive portions of the upper being secured preferably by a staple 24 driven through the upper and one of the tabs, and clinched on the under side of the tab. The tabs may be raised prior to the lasting operation and if not are readily raised in the stapling operation by the anvil or channel guide of the stapling machine. The machine employed may be of the type disclosed in application Serial No. 721,007, filed June 19, 1924, by George Goddu. In the use of this machine successive portions of the upper are tensioned by a gripper and, while control of the upper is maintained by a staple nozzle, a staple is insert-ed through a tensioned portion of the upper and one of the tabs 16, the staple bein(y clinched by a channel guide or anvil disposed against the under side of the tab. After the lasting has been effected by securing a tensioned portion of each of the tabs at the two sides of the shoe, the tabs are pressed back into the recesses from which they were cut, leaving the bottom of the insole perfectly flat and substantially unbroken. Filling material may be dispensed with, or at most only enough iiller inserted to compensate for the thickness of the margin of the overlasted upper. At the toe and heel the upper may be lasted, for example, on a bed type of lasting machine, and tacks 25 driven through the upper and completely through theV insole, their points being clinched by the metal plates with which the toe and heel ends of the last are provided. An outsole is then applied tothe shoe, the last removed, and the outsole, upper and insole secured together by through-and-throughstitchespassingthrough the margin 18 of the insole outside of the line of the staples.

In Fig. 3 is illustrated an insole comprising two layers 10, 12 of material like that shown in Fig. 1. The novel features of the insole disclosed in Fig. 3 are claimed in a divisional application, Serial No. 370,585, tiled June 13, 1929. Instead, however, of having tabs 16 formed upon its outer layer 10', the layer 10 of the insole shown in has a cut along `he line 26 extending centrally longitudinally of the sole from the breast line 28 to the tip line 30, together with transverse slits at the tip line and breast line, providing flaps 32 and 34 which may be raised away from the layer 12. Preferably the layers 10. 12 are attached. to each other only along the marginal portions between the tip line and breast line. that is outside of the-dotted lines 35 shown in Fig. 3. and such attachment is preferably made by the use of cement, though of course stitching along the lines 35 may be ernployed if desired.

The insole of Fig. 3 may be used in substantially the same manner as that shown in Fig. 1. The anvil of a staple lasting machine is passed through the siit 26 beneath the part of the part 311, according to which side of the shoe is being lasted, and in the operation of the machine the Lipper is drawn over the insole and a staple driven through the upper and one of the portions 32, Sli of the insole, the staple being clinched by the anvil on the under face of the outer layer. An outsole 36 is then applied, as shown in Fig. 4;, and secured to the upper and insole by stitches 38.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. An insole comprising a plurality of layers, the outer layer having cuts extending through it and providing portions which may be raised for the insertion of a tool for clinching a fastening driven through the upper and one of said portions.

2. An insole comprising a plurality of layers, the outer layer thereof being provided with independent projections consisting of portions displaced from said outer layer and having the thickness of the outer layer, said projections being adapted to have the upper of a shoe secured to them and to be bent back into the recesses from which they were displaced.

3.. An insole comprising a plurality of layers, the outer layer having cuts extending through it and providing independent tabs formed by displaced portions of said outer layer, said tabs being adapted to have the upper secured to them by independent fastenings and to be bent back into the recesses from which they were displaced.

et. An insole comprising a. plurality of layers of material, the outer layer thereof being provided with tabs having the thickness of the outer layer and adapted to receive fastenings for securing the upper in lasted position, the attached ends of the tabs being spaced from the edge of the insole to provide a margin for receiving the outsole-attaching stitches.

5. An insole for shoes comprising a plurality of layers, the outer layer having U-shaped cuts therethrough to provide tabs to which the upper may be secured.

6. An insole for shoes comprising a plurality of layers, the outer layer having tabs at spaced intervals along the margin of the insole an d recesses beneath the tabs extending through the outer layer and into which the tabs may be forced after the upper is secured to them.

In testimony whereof I have signed my naine to this specification.

HENRY B. GORMAN.

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