Patent GB-963724-A (GB)
Title: Heel seat lasting with breast line pincers
IPC: A43D21/18
Filed: 1962-06-14
Abstract: 963,724. Heel-seat lasting machines. CAMPEX RESEARCH & TRADING CORPORATION. June 14, 1962 [July 21, 1961], No. 22967/62. Heading A3B. A heel seat lasting machine comprising wipers, a shoe support located forwardly of the wipers and supporting, bottom up, a last having an insole located on it and an upper mounted thereon with its margin projecting upwardly from the insole at the heel and breast line, vamp pincers for gripping the forepart of the upper, breast line pincers located above the shoe support and forwardly of the wipers, means for actuating the vamp pincers to grip the upper and stretch it about the heel of the last, means for thereafter actuating the breast line pincers to grip the margin of the upper, means for moving them inwardly to lay the upper on the insole at the breast line, and means for thereafter effecting forward movement of the wipers to wipe the margin at the heel of the upper down upon the insole. The machine is similar to that described in Specification 963,723 having a post 20, carrying a last supporting plate 54, an upper tensioning unit 68 with toe and forepart pincers 98 and 124, a heel seat lasting unit 176 having a heel clamping pad 238 and wipers 282, and a hold-down unit 294 with a hold-down foot 304 plus the additional feature of breast line pincers 576. A mounting plate 552 is adjustably mounted in each of the recesses 550, provided at the forward end of the cover plate 296 of the hold-down unit 294 on opposite sides of the hold-down foot 304, by means of screws 554 extending through elongated apertures 556 in the plate and threaded to the cover plate 296. Guide plates 558 connected to each mounting plate 552 carry an outwardly extending bracket 560, opposite which is an air-operated motor 562, the piston rod of which is connected to an L-shaped slide bar 568 having an upright leg 566 and a prone leg 570. The prone leg is slidably mounted and the inner end constitutes the jaw of the breast line pincers. Pivoted to the upright leg 566 is an air operated motor 578, the piston rod of which is pivotally connected to the other pincer jaw 584 which is also pivotally connected to the associated slide bar 568. As the last support is raised, the margins of the upper are moved between the open jaws of the pincers. At the same time as the heel seat lasting unit is carried into a positon adjacent the shoe and last, the motors 578 are actuated to close the pincers 576 on the shoe upper at the breast line. The upper tensioning mechanism including toe and side pincers 98 and 124 has already stretched the upper in the direction of the toe of the last and caused firm wrapping of the upper about the heel of the last. Concomitantly with the movement of the clamping pad 238 to the heel end of the shoe the motors 562 are actuated to move the pincers 576 towards each other to lay the upper margin at the breast line down upon the insole. At the same time the jaws of the fore-part pincers 124 are opened. A presser member now engages the bottom of the pad 238, and the motor is actuated to cause the wipers 282 to wipe the margins of the upper and counter stiffener down against the insole. The machine may be used to shape the upper, counter stiffener and lining construction claimed in Specification 963,721.