EP 0422368 A3 19910612 - AUXILIARY CLAMPING METHOD FOR THE TOOL IN A STAMPING PRESS

Title (en)

AUXILIARY CLAMPING METHOD FOR THE TOOL IN A STAMPING PRESS

Publication

EP 0422368 A3 19910612 (FR)

Application

EP 90116314 A 19900825

Priority

CH 370989 A 19891012

Abstract (en)

[origin: JPH03136797A] PURPOSE: To increase suction force usable between a tool and a beam by putting at least one among plural chambers in a vacuum state, and connecting this to the rear of the tool through a duct. CONSTITUTION: A platen press for cutting, creasing or embossing sheet-like materials, has a lower movable beam 2 to support a sheet 4 and an upper fixed beam 1 to which a tool 3 is fitted. Plural chambers 18a, 18b are arranged inside the upper fixed beam 1 to prevent bending of the tool 3 in a work position. Among these chambers 18a, 18b, one end of one chamber 18b is connected to a vacuum pump so that the other end is connected to the rear surface of the tool 3 through a duct 23 to press the tool 3 to the upper beam 1 by the sucking action.

IPC 1-7

B30B 15/02

IPC 8 full level

B26F 1/00 (2006.01); B26D 7/26 (2006.01); B26F 1/40 (2006.01); B26F 1/44 (2006.01); B30B 15/02 (2006.01)

CPC (source: EP US)

B26D 7/2614 (2013.01 - EP US); B30B 15/026 (2013.01 - EP US); B26D 2007/2607 (2013.01 - EP US); Y10S 100/918 (2013.01 - EP US); Y10T 83/9473 (2015.04 - EP US)

Citation (search report)

[AD] CH 372546 A 19631015 - BOBST FILS SA J [CH]
[X] DE 1436873 A1 19700430 - BOBST FILS SA J
[A] BASE DE DONEES - WPI, no. 77-D0735Y/15, Derwent Publications Ltd, Londres, GB; & SU-A-523 810 (VORON HYD.) 21-10-1976

Designated contracting state (EPC)

AT BE DE DK ES FR GB IT LU NL SE

DOCDB simple family (publication)

EP 0422368 A2 19910417; EP 0422368 A3 19910612; EP 0422368 B1 19930908; AT E94124 T1 19930915; AU 6374290 A 19910418; AU 641690 B2 19930930; BR 9005087 A 19910917; CA 2026324 A1 19910413; CA 2026324 C 19970128; CH 682314 A5 19930831; DE 69003218 D1 19931014; DE 69003218 T2 19940105; DK 0422368 T3 19931213; ES 2044349 T3 19940101; JP H03136797 A 19910611; JP H07110480 B2 19951129; US 5104370 A 19920414

DOCDB simple family (application)

EP 90116314 A 19900825; AT 90116314 T 19900825; AU 6374290 A 19901003; BR 9005087 A 19901011; CA 2026324 A 19900927; CH 370989 A 19891012; DE 69003218 T 19900825; DK 90116314 T 19900825; ES 90116314 T 19900825; JP 27513490 A 19901012; US 59603190 A 19901011