US2171414A

US2171414A - Shoe

Info

Publication number: US2171414A
Application number: US237429A
Authority: US
Inventors: James C Givren
Original assignee: Individual
Current assignee: Individual
Priority date: 1938-10-28
Filing date: 1938-10-28
Publication date: 1939-08-29
Anticipated expiration: 1956-08-29

Description

Aug. 29, 1939.

J. C. GIVREN SHOE Filed Oct. 28, 1938 INVENTOR.

Patented Aug.

UNITED STATES PATENT oFFlcE a James C. Givren, Brockton, Mass. Application october 2s, 193s, serial No. 237,429

n invention relates to shoes which have an 2 Claims.

incorporated cushion filler.

Shoes in which cushions are disposed either between the soles or in the cavity between the li overlasted margins of the upper have recently become popular and is more useful in the forepart of a shoe than elsein demand. Since a cushion where, many attempts have been made to replace the ordinary bottom filler with a resilient cushion material such as sponge rubber. However, shoesl made in this fashion have not found favor for the reason that the cushion is located only in the central portion of the forepart and is bounded by a broad band of non-resilient materials consisting of the insole, the overlasted margin of the upper and the outsole. With this background in view, I have devised a method of shoemaking in which the insole is formed with a cavity in the forepart which extends nearly to the peripheral edge of the sole, being bounded by a very narrow marginal band.

In assembling the shoe of my invention the recessed insole is placed upon a last, the cavity is lled, an upper is worked over the last, and its ov the narrow band or erlasted margin is secured to to the surface of the resilient ller. Subsequently a sole is secured to the lasted shoe.

With a shoe so constructed a cushion is provided which extends beneath almost the entire forepart of the foot and is much more comfortable than shoes having a cushion located within the more restricted cavity bounded by the overlasted margin. The Amost important objects of my invention are to provide a cushion sole shoe which is more comfortable than shoes heretofore produced and which'may be marmfactured advantageously and in which the cushion is securely anchored in place and prevented from displacement in continued wear. To th ese ends an important feature of my invention resides in a resilient cushion disposed in the shoe `bottom above the overlasted 4 margin of the upper. A characteristic of my invention is the applying of the cushion filler to the insole prior to the lasting operation, and subsequently working the margin of the upper over the exposed surface of the iiller.

These and other be best understood features of the invention will from the following descripfor purposes of illustration and shown in the accompanying drawing in which,

Fig.

1 is'a fragmentary view in perspective showing the forepart of an insole used in my invention,

' Fig. 2 is a view in perspective showing an insole applied to a last an d having its cavitylled,

Fig. 3 is a view in perspective, partly in crossvsection of the lasted shoe, and

Fig. 4 is a view in transverse Vcross-section of the completed shoe.

Fig. 5 is a view partly in perspective and partly 5 in cross section showing alternative constructions.

The first step in my method is to pass an insole It of leather or other suitable material through a matrix splitting machine in order to form a large cavity in the forepart thereof, as shown in Fig. 1. Where a leather insole Vis used, the cavity may be formed in the esh side so that it is bottomed by a thin sheet I4 of grain leather. The narrow marginal band I2 of unreduced thickness is of width not exceeding the full thickness of the insole and bounds the cavity thus formed. After the splitting operation has been performed, the insole is temporarily secured to a last I8 with its cavity exposed. Subsequently a filler ofresilient cush-fl ioning material I6, for example a sponge rubber. pad or a mixture of ground cork and rubber, is- .placed in the cavity in such a way that the sur-I face from one edge of `the insole to the other across the forepart is smothly rounded. An upper 20 is then worked overthe last according to 25 ordinary shoemaking' practice, and the overlasted margin is secured to thesurface presented by the illed insole I0. In other words, the upper 20 is lasted over an appreciable area of the exposed surface of the cushioning material I6. 'Ihe heel- 30 seat portion of the overlasted margin is secured by heel-seat nails 26, the shank portion of the overlasted margin is herein shown as fastened with staples 24. The forepart of the overlaster marginv is secured by cement to the narrow band '35 I2 and vto the surface of thle resilient material I6. The upper 20 includes the outer covering as well as other elements such as a counter and a l lining. After the shoe has been thus lasted, the upper is trimmed to remove pleats and bunches, 40 a sole 22 is cemented to the bottom of the lasted shoe by ordinary methods, the last I8 is withdrawn and the shoe is then completed.

It will be apparent from an inspection of Fig. 4 that the resilient cushion ller I6 extends over 45 almost-the entire forepart of the sole area of the shoe and' only a narrow marginal band I2 of nonresilient material is left. It will be evident that a cushion ller which extended only between' the edges of the overlasted margin is less comfortable for the reason that it does not underlie the entire weight carrying area of the foot but tends to compact and leave a' ridge that soon becomes noticeable to the wearer.

The invention isv not lconfined to shoes which 56 A are lasted with cement and have the soles cemented on but can be used with any of the usual combinations of methods of lasting and sole attaching. As shown inFig. 5, an upper 33 may be lasted by usingeither staples 32, tacks 34, or pegs 36. 'Ihe sole 65 may be attached by a line of McKay or Littleway stitching as illustrated at 38, or by pegs as shown at 40.

It should be noted that it is important to gouge the insole to a depth permitting a cushion filler of appreciable thickness to be employed. A cushion ller which is only equal in thickness to the thickness .of the overlasted margin cannot serve the purpose of an eiective cushion because its thinness would not permit appreciable lresiliency in the shoe. V

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

1. A shoe comprising an insole having its forepart recessed so as to provide a narrow marginal band of a width not exceeding the full thickness of the insole, resilient cushioning material filling said recess, an upper having its margin lasted overv the band and an appreciable area of the exposed surface of the cushioning material, said upper being secured to the cushioning material, and an outsole attached to the shoe bottom.

2. A shoe comprising an insole having its forepart recessed so as to provide a narrow marginal band of a width not exceeding the full thickness of the insole, resilient cushioning material lling said recess, an upper having its margin lasted over theband and an appreciable area of the exposed surface of the cushioning material, said upper being adhesively secured to the band and to the cushioning material, and an outsole attached to the shoe bottom.

JAMES C. GIVREN.