EP 0399337 B1 19940810 - Multitool punch holder.
Title (en)
Multitool punch holder.
Title (de)
Mehrfachwerkzeughalter für Stanzstempel.
Title (fr)
Porte-outil multiple pour poinçons.
Publication
Application
Priority
US 35525289 A 19890522
Abstract (en)
[origin: EP0399337A1] A multitool punch holder in which a tool carrier (22) holds a circumferential array of punches (76) in a corresponding series of bores. Each punch (76) is attached to a stem rod (50) having an upper end protruding above the tool carrier (22). The tool carrier (22) is rotated by an index drive (102,104, 106, 108) so as to bring a selected one fo the stem rods (50) beneath a ram drive feature (100) protruding radially outward to lie above of the stem rod ends (52). The tool carrier (22) is coupled to the ram (14) by a head member (20) which is telescopically received therein allowing the ram (14) to continue its descent after contact of the tool carrier (22) with the workpiece, the ram (14) having a feature (100) engaging a selected stem rod end (52) lying beneath the ram drive feature (100) to cause advance of the attached punch (76) against the resistance of an encircling stripper spring (62).
IPC 1-7
IPC 8 full level
B21D 28/36 (2006.01); B21D 28/12 (2006.01)
CPC (source: EP)
B21D 28/12 (2013.01); B21D 28/125 (2013.01); B30B 15/028 (2013.01); B30B 11/08 (2013.01)
Designated contracting state (EPC)
CH DE FR GB IT LI
DOCDB simple family (publication)
EP 0399337 A1 19901128; EP 0399337 B1 19940810; CA 2016724 A1 19901122; CA 2016724 C 19990427; DE 69011411 D1 19940915; DE 69011411 T2 19950330; JP 2720576 B2 19980304; JP H0390225 A 19910416
DOCDB simple family (application)
EP 90109135 A 19900515; CA 2016724 A 19900514; DE 69011411 T 19900515; JP 13043390 A 19900522