EP 1080802 A3 20030102 - Fastening mechanism in a tool for a hydroforming process
Title (en)
Fastening mechanism in a tool for a hydroforming process
Title (de)
Befestigungsvorrichtung in einem Werkzeug zum Innenhochdruck-Umformverfahren
Title (fr)
Dispositif de fixation dans un outil pour un procédé d' hydroformage
Publication
Application
Priority
DE 19939512 A 19990820
Abstract (en)
[origin: EP1080802A2] The guide bushing (5) is clamped in the tool (1,2) in the form of a clamping ring (7,7a,7b) concentrically enclosing part of the bushing length, the ring in turn connected to a pressure source (9). The ring is pre-tensioned by a screw (8) arranged in the block (4) and balls allocated to the block recesses form retractable and extendable part of the bushing (5). The block itself is pre-tensioned into the tool and is ringed in part concentrically by a flexible clamping ring made of yielding material and also connected to a pressure source (12).
IPC 1-7
IPC 8 full level
B21D 37/14 (2006.01); B21D 26/02 (2011.01); B21D 26/035 (2011.01); B21D 26/047 (2011.01); B21D 37/00 (2006.01)
CPC (source: EP KR US)
B21D 26/035 (2013.01 - EP KR US); B21D 26/047 (2013.01 - EP US); B21D 37/00 (2013.01 - EP US); Y10T 83/9476 (2015.04 - EP US)
Citation (search report)
- [DA] DE 19506067 C1 19960620 - KRUPP AG HOESCH KRUPP [DE]
- [A] US 5398533 A 19950321 - SHIMANOVSKI BRUCE S [US], et al
- [A] US 5666840 A 19970916 - SHAH SANJAY MAHASUKHLAL [US], et al
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
DE 19939512 A1 20010222; EP 1080802 A2 20010307; EP 1080802 A3 20030102; JP 2001096322 A 20010410; KR 20010050131 A 20010615; US 6260393 B1 20010717
DOCDB simple family (application)
DE 19939512 A 19990820; EP 00117136 A 20000810; JP 2000248761 A 20000818; KR 20000048032 A 20000819; US 64251900 A 20000818