US1964397A - Shoe-pulling device for lasts - Google Patents

Description

June 26, 1934. E BROTHERS 1,964,397

SHOE PULLING DEVICE FOR LASTS Filed Dec. l, 1952 by M/z,

Patented June 26, 1934 UNITED STATES PATENT OFFICE SHOE-PULLING DEVICE FOR LASTS Application December 1, 1932, Serial No. 645,144 7 claims. (cria-15.1)

The invention relates to devices for removing shoes from lasts.

An object of the invention is to provide a device which is capable of delasting a shoe in an improved manner, wherein the shoe is not gripped with undue severity, but is forced upwardly and freed from the last in an expeditious manner without scratching, marring or breaking the shoe upper.

Other objects of the invention will in part be obvious and will in part appear hereinafter.

The invention accordingly comprises the features of construction, combination of elements, and arrangement of parts, which will be exempli- Ied in the construction hereinafter set forth and the scope of the application of which will be indicated in the claims.

Referring to the figures: Fig. l is a side elevation of the machine partly zlbroken away showing the mechanism for removing the shoe from the last.

Fig. 2 is a partial front elevation of the same. Fig. 3 is a plan view of the same. Referring to the drawing, which illustrates one .embodiment of my improved device, there is shown a frame 10 on which is mounted a last A and a shoe B which is removed by the present mechanism. Mounted in the frame 10 is a foot pedal 11 fulcrumed on the shaft 12 having a ,bearing in the support 13. Pivoted to the foot pedal 11 is a rod having an offset at 15. The opposite end of the rod is pivoted to the lever 16. The lever 16 controls and operates the shoe-removing device 17. This device 17 comprises an arm or`floating lever which is adapted to 'be moved in one direction through depression of the foot pedal 11. The movement in the opposite direction is caused by the spring 18 which is secured to the oiset 15 and pin 19. The lever 16 is mounted on the shaft 20 having bearings in the frame 10. The limiting movements of the lever 15 and the shoe-removing device 17 are indicated by the dotted line structures C and D. The shoeremoving device shown in full lines indicates the .1g-pushing device ready to start the de-lasting operation. The structure C shows the device in the non-operative position and the structure D shows it in the maximum upward operative position. When the device is in this position the shoe is removed from the last. The last A is mounted on a jack 21 which is supported at its lower end in a movable carriage 22. The last A rests on a plurality of washers 23 which permits the last to be adjusted vertically in relation to the shoeremoving device. The last can be adjusted horizontally in relation to the shoe-removing device by the carriage 22 which slides in the ways 24 and 25 formed in the frame 10. The carriage 22 is adjusted by the screw 26 threaded into the projection 27 formed in the frame. The screw 26 is turned manually by the wheel 28 which causes the carriage and the screw to move backward and forward by the screw thread in accordance to the turning movement of the wheel 18. The threaded screw 26 is provided with an enlarged disc 29 which is free to rotate in a slot formed in the carriage 22. The screw part adjacent to the disc 29 is of smaller diameter and rests in a slot 30 formed in the plate 31 which is screwed to the carriage. the screw fast to the carriage out at the same time allows it to rotate freely, so that the carriage can operate properly by the screw-feeding device. The shoe-removing device on its lower end is plvoted at 32 and free to swing to conform to all the operations of the device. Means are provided for giving the arm or floating lever 17 a normal bias toward the last. In the illustrated embodiment this means comprises a spring 33 secured to pins 34 and 35 respectively anchored to levers 16 and 17. The spring 33 always pulls the levers 16 and 17 towards each other and allows suffic'ent flexibility of movement to permit the mechanism to operate. During the initial part of the de-lasting movement of arm 17, the spring 33 holds it against an abutment 36, which is located on the frame and which guides the arm in its vertical reciprocating movements during this initial part of the stroke. When the mechanism assumes the position of structure C the projecting cam surface 37 wipes against the projection 36 causing the lever 17 to assume the non-operating position when the machine is not operating. On the upper extremity of the lever 17 is a foot 38 which contacts the heel of the shoe and in its upward movement causes the shoe to be removed from the last. The lever 17 operates in a slot 39 which confines it laterally during its various movements.

In operation the last A and shoe B are placed in a working position on the jack 21. When the shoe is nished it is removed by the mechanism embodying the invention. The operator presses the foot lever downwardly carrying with it the rod 14 and other operating mechanisms in accordance with their various movements. The downward movement of the rod 14 causes the lever 16 to rotate on the shaft 2U thereby forcing the removing lever 17 upwardly against the heel portion of the shoe B. This movement causes the This construction holds last A to bind against the jack 21 holding it in position so that the shoe can be removed by a sliding movement over the heel of the last. After the shoe is removed the lever 17 drops back under the influence of spring 18 and the cam surface 37 wipes against the abutment 36 on the frame which forces the removing lever back to its normal non-operative position.

It will be seen that there has been provided a device which is well suited to full its intended functions. Since certain changes may be made in the above construction and different embodiments of the invention could be made without departing from the scope thereof, it is intended that all matter contained in the above description or shown in the accompanying drawing shall be interpreted as illustrative and not in a limiting sense.

It is also to be understood that the following claims are intended to cover all of the generic and specic features of the invention herein described, and all statements of the scope of the invention which, as a matter of language, might be said to fall therebetween.

What I claim is new and desire to secure by Letters Patent of the United States is:

l. In a shoe-removing device for lasts comprising a frame, a jack on the frame for holding a last, a floating lever having a foot co-operating with the heel portion of the shoe for removing it from the last, a lever connected to the floating lever, a rod and foot pedal for operating the floating lever, a spring constantly pulling said levers towards each other, an abutment on the frame, a cam surface formed integral with the floating lever and co-operating with the abutment for controlling the floating lever to conform to the various operations of the machine.

2. In a shoe-removing device for lasts comprising a frame, a jack on the frame for holding a last, a iioating lever having a foot co-operating with the heel portion of the shoe for removing it from the last, a lever connected to the floating lever, a rod and foot pedal for operating the floating lever, a spring constantly pulling said levers towards each other, an abutment on the frame, a cam surface formed integral with the floating lever and co-operating with the abutment for controlling the floating lever to conform to the various operations of the machine and means for adjusting the jack in relation to the foot formed on the floating lever.

3. In a shoe-removing device for lasts comprising a frame, a jack on the frame for holding a last, a floating lever having a foot co-operating with the heel portion of the shoe for removing it from the last, a lever connected to the floating lever, a rod and foot pedal for operating the oating lever, a spring constantly pulling the said levers towards each other, an abutment on the frame, a cam surface formed integral with the floating lever and co-operating with the abutment for controlling the ioating lever to conform to the various operations of the machine, a slideway, a hand-operated screw threaded into the frame and connecting the carriage for imparting a horizontal movement to the jack in relation to the foot on the iioating lever, and a plurality of washers encompassing the jack-pin to allow for vertical adjustment of the last and shoe in relation to the foot on the oating lever,

4. A cie-lasting device comprising a frame, a last holding jack on said frame, an arm cooperable with the heel portion of a shoe to remove it from a last, a lever pivotally connected to said arm, means for operating said lever to raise and lower said arm, and spring means giving said arm a normal bias toward and into contact with the last.

5. A de-lasting device comprising a frame, a last holding jack on said frame, an arm cooperable with the heel portion of a shoe to remove it from a last, a lever pivotally connected to said arm, means for operating said lever to raise and lower said arm, spring means giving said arm a normal bias toward and into contact with the last, and means for holding said arm away from the last during the initial portion of its de-lasting movement.

6. A de-lasting device comprising a frame, a last holding jack on said frame, a fixed abutment on said frame, an arm cooperable with the heel portion of a shoe to remove it from a last, a lever pivotally connected to said arm, means for operating said lever to raise and lower said arm, and spring means giving said arm a normal bias toward said abutment and last, said parts being relatively located so that said arm contacts the abutment during the initial portion of its delasting stroke, and contacts the last during the remainder of said stroke.

7. A de-lasting device comprising a frame, a last holding jack on said frame, a Xed abutment on said frame, an arm cooperable with the heel portion of a shoe to remove it from a last, a lever pivotally connected to said arm, means for operating said lever to raise and lower said arm, spring means giving said arm a normal bias toward said abutment and last, said parts being relatively located so that said arm contacts the abutment during the initial portion of its de-lasting stroke, and contacts the last during the remainder of said stroke, and means for adjusting the position of the last with reference to the path of movement of said arm.

ELI BROTHERS.

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