Patent GB-1507952-A (GB)
Title: Gluing press for shoes
IPC: A43D25/07
Filed: 1976-01-26
Abstract: 1507952 Shoe presses DR ING FUNCK KG 26 Jan 1976 [28 Jan 1975 31 Oct 1975] 02918/76 Heading A3B A press for securing together glued soles and uppers has a fluid pressure operated pressure cushion with a resilient diaphragm engaged to a sole on a lasted shoe upper held in a shoe retaining device, a feed motion taking place between the cushion and shoe retaining device, a switch on the shoe retaining device being operated by the introduction of the shoe upper to start the closure of the press, a safety device on one of the operative parts of the press responding to obstruction to switch off the press. The safety device may consist of a strip, light or air barrier, &c. In one form, insertion of a lasted shoe upper with a sole to be pressed thereon into an aperture 4, Figs. 1, 2, in a shoe receiving plate 3 closes a switch 28. A servo 19 is accordingly energized to pivot downwards a cushion 12. In the lowered position of the cushion, a switch 27 is actuated to supply compressed air through a conduit 16 and thus press a resilient diaphragm 14 onto the shoe. If during downward movement of the cushion 12 an obstruction is encountered by a surrounding safety hood 11 which rests freely on top of the cushion 12, the safety hood is pivoted upwards away from the cushion and a safety switch 25 is actuated, preventing further movement of the press. When the press reaches its operative position, Fig. 2, a  switch 26 is actuated to render the safety switch 25 inoperative. In a modification, Fig. 3 (not shown), the flange of the safety hood 11 enters a recess (30) in the base 1 of the press. and then switch 26 is dispensed with. In another embodiment, a shoe receiving plate 33, Fig. 4, is pivoted by V-shaped levers 49 to the press frame 51. Insertion of a shoe and sole 43, 44 into a lined shoe receiving aperture 47 actuates a switch 55 to energize a servo 53 and pivot the shoe receiving plate 33 up to its operative position, Fig. 5. A switch 56 is then actuated, causing energization of a servo 40 to lower a cushion 32. When the cushion 12 reaches its operative position, a switch 57 is actuated which allows compressed air to enter the cushion 32 and engage a resilient diaphragm 38 about the shoe, &c. If an obstruction is encountered during lowering of the pressure cushion 32, a safety flap 60 is pivoted by contact with the obstruction to actuate a switch 62 and either stop the press, or reverse its drive so that it returns to its inoperative position. In another embodiment, the pressure cushion 32, Fig. 6, is fast with the frame 39 of the press, and the shoe retainer 33 is raised and lowered on links 74, 75 by a servo 79. The link 75 contains a toggle connection 77. A safety hood 70 freely surrounds the cushion 32, and if an obstruction is lifted by the retainer 33 the hood is raised to actuate a safety switch 73. In a final embodiment, a pressure cushion 32, guide rails 92, 93 by a servo 40, and a shoe Fig. 8, is raised and lowered vertically on receiving plate 33 is traversed horizontally along rails 99 by a servo 98. More than one shoe &c. receiving aperture may be provided in each shoe receiving plate. The press incorporates a safety device (not shown).