US2654902A - Stitchdown lasting machine - Google Patents

Description

Oct. 13, 1953 A. SPATOLA STITCHDOWN LASTING MACHINE Filed June 25, 1:17

' INVENTUR. Amen: .Srmpm BY W Patented Get. 13, 1953 STITCHDOWN LASTING MACHINE Albert Spatola, New York, N. Y., asslgnor to United Shoe Machinery Corporation, Flemington, N. J a corporation of New Jersey Application June 23, 1947, Serial No. 758,399

1 Claim. (01. 12-7.5)

This invention relates to machines for operating upon shoes and is illustrated as embodied in a machine for working end portions and side portions of stitchdown shoe uppers into lasted position and for pressing the outturned lasting mar-,

gins thereof against projecting margins of soles.

It is to be understood, however, that the invention in certain of its aspects is not limited in its application to machines for use in operating upon stitchdown shoes.

In the manufacture of stitchdown shoes the forming of the toe portions and the lasting of side portions have heretofore been separate and distinct operations performed on two different machines. It is an object. of the present invention to provide a single machine for shaping the toes and lasting both side portions of stitchdown shoes, thus eliminating the separate side lasting operation now required, and thereby reducing the manufacturing cost.

It is a further object of the invention to improve the lasting of stitchdown shoes by lasting the toe portion and the entire side portions in a single operation.

With the above objects in view the present invention consists in the provision in a stitchdown lasting machine of a pair of wipers pivotally mounted adjacent to the toe end of a shoe arranged in upright position in the machine, said wipers being constructed and arranged to operate on the toe portion of the shoe and on opposite sides rearwardly to the heel end of the shoe. For supporting the forepart and the shank portion of a sole to be secured to the shoe there is provided a plate having a recess in its upper surface at its heel end. For advancing the shoe toewardly relatively to the wipers a shoe upper engaging member constructed and arranged to engage the heel end portion of the shoe is mounted on a slide supported in a recess in the heel end portion of the sole supporting plate. Means herein illustrated as a manually operated screw is provided for advancing the slide.

The invention will now be described with reference to the accompanying drawings and pointed out in the appended claims.

In the drawings,

Fig. 1 is a rear elevation illustrating portions of a stitchdown lasting machine embodying features of the present invention;

Fig. 2 is a side elevation illustrating a heel engaging member operable to urge the shoe toewardly into the wipers;

Fig. 3 is a plan view or the mechanism illustrated in Fig. 2;

Fig. 4 is a plan view showing the wiper plates in their advanced or closed position;

Fig. 5 is a section taken on the line V--V of Fig. 4; and

Fig. 6 is a plan view of the sole supporting plate, face up.

The machine to which the illustrated. mechanism is applied performs a shaping operation upon the toe portion and opposite side portions of a stitchdown shoe upper mounted on a last and arranged in upright position upon a shoe sole S (Fig. 1) mounted on a sole supporting plate [0 (Figs. 1 and 6). The machine performs a lasting operation and thereafter applies upward pressure to the sole supporting plate H) to bring it into intimate contact with the outwardly flanged lasting margin of the upper. Preferably the contacting surfaces of the upper and the sole are coated with cement to cause them to adhere when the sole is pressed upwardly against the outwardly flanged margin.

While any suitable means may be provided for actuating the illustrated instrumentalities I prefer to incorporate them in a power operated machine for lasting stitchdown shoes. Such a machine is illustrated, for example, in United States Letters Patent No. 1,861,832, granted June '7, 1932, on an application filed in the name of William C. Baxter. The illustrated sole supporting plate In is constructed and arranged to be mounted on the block '76 of the Baxter machine in the same manner as the sole supporting plate '78 illustrated therein. In the operation of the Baxter machine upward movement is imparted to the block 76 by power first to move the shoe upwardly into a lasting position determined by its engagement with a holddown or toe clamp 294 and thereafter to apply sole laying pressure to the shoe sole.

Referring to Fig. 4, the illustrated lasting wipers l3 and M are provided at their toe ends with notches l8 and H to permit them to be mounted upon upwardly projecting studs IT and I8. Said studs are mounted in wiper carriers which operate to impart to the wiper plates swinging movement about a common axis coinciding with the meeting point of the wiping edges at the toe ends of the wipers. The illustrated wipers extend from the toe end to the heel end portion of the shoe, the heel ends of the wipers being slightly spaced. from each other as shown in Fig. 4 when the wipers are in their fully advanced or closed position. The wiper plates have a vertical curvature corresponding to the profile of the shoe bottom and their wiping edges 15a are shaped in accordance with the pattern or the shoe bottom. The

the wipers and the carrier the wipers are provided at their hee'l end portions With upstanding handles [9 and 20 respectively (Fig. 1) conventhe limits afforded by such relative movement of 4 iently arranged to be grasped by the two hands of the operator and mounted for swiveling movement on pins (not shown).

wiper plates I3 and is a resilient rubber member 32 (Figs. 2 and 3) having a generally arcuate horizontal curvature as seen in Fig. 3 is fixed to the head 3! of a yoke 29 pivotally mounted on studs 30 projecting outwardly from a post 24. The vertical position of the member 32 is determined by the engagement of a headed :screwZSa (Fig. 3) mounted in the yoke 22 with the post 26, said screw being adjustable to vary the heightwise position of the member 32. A plate 23 is slidably mounted between the parallel side walls of a recess H formed in the top of the heel por tion of the sole supporting .plate I d. For moving the sliding assembly lengthwise of a shoe in the machine a screw 2? is mounted to turn freely in a bore in a boss 25 extending downwardly from the plate 23. Mounted in the plate 23 is :a block 26 constituting a half nut which normally engages and cooperates with the left threaded rear end portion of the screw .27. The screw is provided with a crank 28 for convenient manipulation thereof. The rubber member 32 is preferably arranged to engage the back line portion of the upper H (Fig. 1) in a generally central position heightwise of the heel portion of the upper.

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

In a stitchdown lasting machine a pair of wipers pivotally mounted adjacent to the toe end of a shoe arranged in upright position in the machine, said wipers being constructed and arranged to operate on the toe portion of the shoe and on opposite side portions rearwardly to the heel end, a plate for supporting the forepart and the shank portion of a sole to be secured to the shoe, said plate having a recess in its upper surface at its heel end, aslide mounted in said recess In order to urge the shoe toewardly into the and constructed and arranged to support the heel end portion or the sole, a shoe upper engaging member carried by the slide, and means for advaneing said-slide to bring said member into engagement with the heel end portion of the shoe in the machine thereby to advance the shoe toewardly into the wipers.

SPATQLA.

References Cited in the file of this patent UNITED STATES PATENTS Number .Name Date 919,995 Wright .et al Apr. 27, 1909 1,443,423 Logan l- Jan. 30, 1923 1,955,730 Baxter Apr. 24, 19.34 2,086,526 Ashworth July 13, 1937 2,152,855 Ricks et al. Apr. 4, 1939 2,194,693 Dehne Mar. 26, 1940 FOREIGN PATENTS rhuniber Country 'Date 22,596 Great Britain of 1908 24,485 Great Britain of 1907 216,243 Germany 'Nov. 10, 1909 220,239 Germany Mar. '16, 1910

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