US2502513A - Shoe shaping machine - Google Patents

Description

April 4, 1950 K. ENGEL SHOE SHAPING MACHINE 2 Sheets-Sheet 1 Filed Au 22, I946 Emu w Min -l. A a .w J

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[n 2/6 for Karl [/7951 April 4, 1950 K. ENGEL SHOE SHAPING MACHINE 2 Sheets-Sheet 2 Filed Aug. 22, 1946 Patented Apr. 4, 1950 'iSHQE {SHAPING Karl ,Eneel. iswamns tt, Mass, .assi nor t! United Shoe Machinery Corporation, Flemington, N. J., a corporation of New Jersey Application August 22, 1946, Serial No. 692,168

This invention relates to machines for shaping shoe uppers and is herein-illustrated in its appliacation tormachines for shaping :the foreparts of sshoesihaving openback parts.

'I In i'he manufacture .of shoes having open back ipamts a cordance with the lip las ed me hod of rcons ruction. so called, :a prefitted u per is atitached to :a shoe sole an thereafter .a la r form is insertedinto the shoe to expand the upper to its final shape. It is an object of the present invention to provide a machine which will shape uppers ofsuchshoes without the aid of lasts. .a "further objector the invention to :provide a machine which will enable an operator to achieve a higher production than is possible .under present methods of manufacture while substantially reducing the physical effort required.

With the above objects in view the present invention in one aspect thereof comprises a machine for shaping shoe uppers having a support for an end portion of a shoe bottom herein illustrated as a sole and heel assembly, said support being herein illustrated as a block having the shape of the heel portion of a last and arranged to engage the foot-facing surfaceof said shoe bottom assembly, an eccentrically mounted presser member or roll for clamping said bottom assembly against said support, means for positively holding said presser member against bodily movement longitudinally of said shoe bottom assembly, and means herein illustrated as a forepart shaping member having the shape of the forepart of a last constructed and arranged to move longitudinally of the shoe bottom assembly to operate on an upper secured thereto. In the illustrated organization said heel block is rigidly mounted in a fixed position and an actuator in the form of a treadle is provided for moving the forepart shaping member toewardly to impart the desired shape to the upper.

These and other features of 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 right side elevation illustrating a machine embodying the features of the present invention; and

Fig. 2 is a section taken on theline II-II of Fig. 1.

Referring to Fig. 1, a standard III. of generally triangular shape is secured to the top of a bench l2 by screws or bolts I4 extending through outwardly flanged portions l6 and 18 of the base 7 of the standard. The front of the illustrated ma- 3 Qlaims- (or. ra -.1.)

chine =is identified byithe inclined face H .of;t1:1e standard. The rear portion of the standardghas a vertical plane surfaceextending widthwise of the standard to which .an upwardl extending plate 12-8 is secured byscrews 1 .2 Secure to the upper end portion :of said plate by screwsfil is {a work supporting member 26 herein illustrated a :wooden block having :the general (shape .of the heel portion of a last.

For clamping he h e po tion :ef ashes :bcttam :against the upper "surface of the work support 2B;.a cylindrical roll :28 is eccentnicall'y II1'0 te(;i run a cross shaft 3%! journaled in suitable hearings in t upp r part cles of parall l rertica plate :32 rFig- 2 s ured :by be t .3 ta oppes te si e portions of :the standard til. For actuating the roll 28 1 00 2 1 a shoe b ttom a n t the work support 26 a hand lever 36 is fixed in said rpll and arranged to project radially therefrom.

For shaping the forepart of a prefitted upper secured to a shoe bottom a form 38 herein illustrated as a wood block having the general shape of the forepart of a last is secured by screws 40 to the upper portion of a rigid. plate 42 secured to a plane surface in the forward portion of a mounting member 44 similar in construction to the standard I ll and pivotally mounted on a cross shaft 46 extending through a rearwardly projecting portion 45 (Fig. 2) of the standard It! and through lugs 49 in the member 44. The forepart shaping form 38 is normally held in its retracted position illustrated in Fig. 1 with the upper portion of the plate 42 in contact with the plate 20 by a tension spring 50 the rear end of which engages a pin 52 in the mounting member 44 and the forward end of which engages a like pin 54 in the standard [0. For swinging the mounting member 44 in a clockwise direction, as seen in Fig. 1, to actuate the forepart shaping form 38 a treadle 56 is connected by a link 58 to a lug 60 projecting rearwardly from the mounting member 44.

In the operation of the illustrated machine a shoe having an open back part is arranged in inverted position and advanced heel foremost to bring the upper 62 into engagement with the form 33 as shown in Fig. 1. By the same heelward motion the shoe bottom, which, as herein; illustrated, comprisesia sole 64 and a heel 66, is advanced into its position illustrated in Fig. 1. In this position the rear or heel portion of the shoe bottom is positioned between the work support 26 and the roll 28, the roll being so arranged as to permit the heel portion of the shoe bottom to pass freely between the roll and the work support. The hand lever 38 is now swung in a counterclockwise direction, as seen in Fig. 1, to cause the roll 28 to exert a clamping action upon the heel 66 thereby gripping the bottom unit securely against the work support 26. The operator now depresses the treadle 66 to advance the form 38 into the upper 62, thereby stretching and expanding it to its final shape. After holding the form so advanced for a brief interval the treadle is permitted to return to its rest position. The roll 28 is then turned in a clockwise direction to disengage it from the heel 66 whereupon the shoe is moved toewardly from the machine.

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

1. A shoe machine comprising a support for an end portion of a shoe bottom constructed and arranged to engage the foot facing surface of saidshoe bottom, an eccentrically mounted presser member for clamping said shoe bottom against :said support, means for positively holding said presser member against bodily movement longitudinally of said shoe bottom, and means constructed and arranged to move longitudinally of the shoe bottom to operate on an upper secured thereto.

' 2. An upper shaping machine comprising means for mounting an end portion of a shoe bottom, an

eccentrically mounted clamp for gripping the shoe bottom against said mounting means, a hand lever for operating said clamp, means for positively holding both the mounting means and the clamp against movement longitudinally of said shoe bottom, and means constructed and arranged to move longitudinally of the shoe bottom within an upper secured thereto, thereby to shape said upper.

'mounting said forepart shaping member, and an actuator constructed and arranged to act on said mounting means to force said forepart engaging member into an upper secured to said shoe bottom.

KARL ENGEL.

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

UNITED'STATES PATENTS- Number Name Date" 963,140 Hackett July 5, 191

1,273,324 Brock July 23, 1918 1,943,356 Yunker Jan. 16, 1934 1,956,684 Homan May 1, 1934 2,086,836 Anderson July 13, 1937 2,170,754 Gregory Aug. 22, 1939 FOREIGN PATENTS Number Country Date 96,263 Germany Feb. 28, 1898 446,627 Great Britain May 4, 1936 560,179 Germany Sept. 29, 1932

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