US1653290A

US1653290A - Method of lasting shoes

Info

Publication number: US1653290A
Application number: US153401A
Authority: US
Inventors: Jorgensen Bernhardt
Original assignee: United Shoe Machinery Corp
Current assignee: United Shoe Machinery Corp
Priority date: 1922-01-21
Filing date: 1926-12-08
Publication date: 1927-12-20
Anticipated expiration: 1944-12-20

Description

B. JORGENSEN METHOD 0F LASTING SHOES Dec. 20, 1927.

Original Filed Jan. 21. 1922 Patented Dec. 20, 1927.

- ssnnnsnn'roonennsnn, or BEVERLY, irnssncnusn'rrs, .as srenon rro UNITEDSHVOIEY meantime-r 'GOREORAFIIOIN, on PATEESON',

JERSEY.

'Qriginal application filedilanuarynm, 1922, Serial 1N0. 530,968. Divided and December .8, 1926.

This invention relates ,to the lasting of boots and shoes, the present application be ing a division of my copending application SerialNo. 530,968, filed on January,21,,1922. The invention vis herein illustrated in its application to the lasting Of the shank portion of tennis shoes or sneakers, in themanufacture of which it is customary to fasten the margin of theupper in lastedrelation to the insole by adhesion through the use of cement. It will be evident, however, that the invention is not limited to shank lasting nor toithe manufacture ofshoes of the particular type illustrated.

It is an object of the invention to provide a method by the use of wl'iichportions of shoes of the aboveanentioned or other types may be lasted more quickly, easily and satisfactorily than heretofore. In the lasting of shoes in which the margin of the upper is fastened'to the insole by the use of cement, it is necessary that the upper be drawntightly over the last before the margin of the upper is brought into contact with the bottom face of the insole and. that the margin of the upper thenbe pressed against said face to cause it to adhere thereto. In accordance with the method of this invention, in its illustrated application t0 thejlast ing of the shank portions ofshoes, the side of a shoe is presented in engagement With a lasting tool, preferably a driven tool as herein shown, and the shoe is turned or rocked about a longitudinal axis to render the tool progressively effective to draw the upper tightly into conformity to the contour of the last andthen to bend it, about the edgeof the shoebottom and to press'its margin upon the bottom face of the insole. In the lasting of shoes in Which the margin of the 'upperis fastened to the insole by cement, theupper is thus drawn tightly over the last while its margin is out of contact With the bottom face of the insole, and by the turning of the shoe while held inengagementavith the tool the margin of theupper is then I bent inwardly into substantially,parallelrelation to the bottom face of the insole and caused toad here to saidface Without any relaxation of the lasting tension. Ina further, aspect of the method, it is contemplated that pressure will be applied to the insole, preferably near NEW JERSEY; a CORPORATION OF Mn'rnop or LAsrrnosnons I t i p il pat e fliq '7 Serial No. 153,401.

the-insole will be positioned andmaintained in close conformity tothe contour ofthe bottom .361. the last "until the upper has been cemented toit. i o v 'The. novelmethod will novv be rnore parimlil l des b d by r n e t a companylng drawings a d thereafter. set forth in the claims. The drawings conveniently illustrate the practice of the methodby the aid of amachine constructed as described in the above-mentioned copending application, although it is ,to be understood that the invention is not dependent upon theuse of any particular maohine or apparatus.

In the drawings, c

Fig. l is a perspective view of the head portion of theinachine shown in the cope ndmg application; v

Figs. Qand 3 are verticalsectionsthrough the shoe-support and theshank portion of a shoe on said support, illustrating different positions of the support and'the shoe in relationto the lasting-tool inthe course of the lasting operation; and

Fig. A: shows the shoe and the lasting tool in substantially, the same relation as 511mg. 2, but as viewed from a point underneath the shoe. c r

As described in the copenoling application. the machine herein-shown as adapted iforiuse in the practice ofthe method comprises a supporting standard 2 upon Which is rotatably, mounted a shaft tarrangedto be driven by a belt on a pullley 6 and carrying at one endla' lasting roll 8, "Forthe illustrated pure pose of shank lasting, this roll is ofsuch length as to extend substantially from the ball lineof the shoe rearwardly to theheel therein corrugations IQeXtending length Wise of the roll. In operation the roll '8 is ioo driven continuously in the direction of the arrow a.

To assist in presenting the shoe to the lasting roll, the machine is provided with a shoe support comprising a pair of arms 14 which are fast on a rock shaft 16 mounted in a bearing in a vertically adjustable bracket 18. Mounted on pivots 20 at the upper ends of the arms 14 is a stirrup-shaped shoe rest member or holder 22. The holder 22 has adjustably mounted thereon a plate 24 provided with an upwardly bent end having a convex edge face for engagement with the insole of the shoe near its edge, as illustrated in Fig. 2. Also adjustably supported on the holder 22 is a shoe rest member 28 arranged for engagement with the shoe on the op posite side from the roll. I The shoe support, when not in use, is maintained in a forwardly tipped position by means of a spring 30, this position being determined by a stop screw 32 which is carried by a depending lug on one of the supporting arms 14 and is arranged to engage the bracket 18. To assist in swinging the shoe support toward the lasting tool,one of the arms 1 1 is provided with a member 34 adapted to be engaged by the operators hip.

In carrying out the method of the invention to last, for example, the shank portion of a rubber-soled shoe which has been previously lasted at the forepart and the heel end, the shoe is presented in engagement with the positioning members 2 1 and 28, with. the convex edge 26 of the plate 24. en gaging the shank portion of the insole in a location near that side of the shoe that is toward the lasting roll, but preferably farther from the edge of the insole than the margin of the upper is to extend when it is wiped inwardly. It will be understood that the holder 22 hangs substantially vertical when the shoe is thus presented to it, and after the shoe has been positioned upon the members 2% and 28, the holder 22 is tipped by the operator so that when the shoe support is swung rearwardly the side of the shoe will be presented in engagement with the lasting roll at a distance from the bottom edge of the upper, for example, as illustrated in Fig. 2. In thus presenting the shoe the operator will preferably engage it with both hands at its opposite ends and will effect the tipping or turning of the holder 22 through the shoe. As the roll engages the side of the shoe it acts frictionally to draw and press the upper into conformity to the contour of the last. While holding the shoe in engagement. with the roll. the operator turns the shoe and its holder 22 in the direction of thearrow Z) to a position such as illustrated, for example, in 3, thus effecting a transfer of the area of effective engagement of the roll with the upper toward the edge of'the upper and rendering the roll effective, as it draws the upper over the last and holds it tightly in conformity to the contour of the last, to bend and wipe its margin inwardly into substantially parallel relation to the bottom face of the insole and to press it up on said face, so that cement previously applied to the upper or to the insole becomes eli'ective to fasten the upper in lasted position. The axis of turning movement of the shoe, represented by a line connecting the pivots 20, will preferably be substantially parallel to the axis of the roll 8 and will intersect the shoe substantially or approximately at the center of curvature, in a plane perpendicular to the shoe bottom, of that port on of the shoe upon which the roll acts in the lasting operation, so that the shoe may be turned as illustrated without any substantial bodily displacement of it, the operator simply maintaining pressure on the versed the shoe end for end presents its other side to the lasting tool to complete the lasting at that side of the shoe. The shoe is then completely lasted and is ready for the sole-laying operation.

As the shoe is turned to render the lasting roll effective to lay the margin of the upper inwardly over the insole, the sole restmember 24 holds the marginal portion of the insole from being displaced by the inwardly directed pressure ofthe roll and also holds the insole closely against the bottom of the last in the inward curve at the shank until the margin of the upper has been ceil ll mented to it, thus preventing the margin of the upper from adhering to the insole prematurely with the margin of the insole un duly separated from the bottom of the last. This insures that the insole as well as the upper will be properly conformed to the contour of the last. ,7

Having described the novel method and set forth fully how it may be practised,what

I claim as new and desire to secure by Let: ters Patent of the United States is:

1. That improvement inmethods of lasting shoes in which the margin of the upper is fastened to the insole by adhesion, which 1 consists in presenting a shoe in engagement with a driven lasting tool at a distance from the bottom edge of the upper and in such position that the movement of the upperlasting tool in such position that the tool by its movement wipes the upper heightwise of the shoe, and while maintaining the shoe in engagement with the tool turning or rocking the shoe until the tool wipes the margin of the upper into substantially parallel relation to the bottom face of the insole.

3. That improvement in methods of lasting shoes in which the margin of the upper is fastened to the insole by adhesion, which consists in presenting the side of a shoe in engagement with a driven lasting roll ro- 23 tating about an axis extending lengthwise of the shoe, and turning or rocking the shoe in a plane transverse to its length while maintaining it in engagement with said roll to tighten the upper over-the last and to :zu bend its margin inwardly into adhering relation to the bottom face of the insole.

at. That improvement in methods of lasting shoes in which the margin of the upper at the shank is fastened to the insole by :11 adhesion. which consists in presenting the side of a shoe in engagement with a frictional lasting tool constructed to act upon substantially the entire length of the'shank at one operation, and by turning or rocking the shoe laterally transferring the area of effective engagement of the tool with the upper toward the bottom edge of the upper to bend the margin of the upper inwardly and press it into adhering relation to the bottom face of the insole.

5. That improvement in methods of lasting shoes in which themargin of the upper is fastened to the insole by adhesion, which consists in presenting a shoe in engagement with a lasting tool at a distance" from the bottom edge of the upper, turning or rocking the shoe to transfer the area of effective engagement of the tool with the upper toward the bottom edge of .the upper and thereby render the tool effective to bend the margin of the upper inwardly into substantially parallel relation to the bottom face of the insole and to press it into adhering relation to said face, and while thusturning or rocking the shoe engaging the insole to hold it closely against the bottom of the last as the margin of the upper is bent inwardly over it.

6. That improvement in methods of lasting shoes which consists in applying pressure to the insole of a shoe near its side edge to hold it in place on the bottom of the last, and while thus holding the insole presenting the side of the shoe in engagement with a driven frictional lasting tool and turning or rocking the shoe laterally in engagement with said tool to wipe the margin of the upper inwardly into substantially parallel relation to'the bottom face of the insole.

7. That improvement in methodsv of last-l ingshoes in which the margin of the upper at the shank is fastenedto the insole by adhesion, which. consists in presenting the with a driven frictional lasting tool, turning the shoe laterally to render the tool effective to wipe the margin of the upper into adhering relation to the bottom face of the insole, and while thus turning the shoe pressing the insole into the shank curvature of the last bottom to preventpremature adherelnce of the upper to the margin of the mso e.

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

' BERNHARDT JORGENSEN.

side of a shoe at the shank in engagement