EP 1446247 B1 20070627 - DEVICE FOR EJECTION OF MOULDED PIECES FROM A MOULDING TOOL
Title (en)
DEVICE FOR EJECTION OF MOULDED PIECES FROM A MOULDING TOOL
Title (de)
VORRICHTUNG ZUM AUSSTOSSEN VON UMFORMTEILEN AUS EINEM UMFORMWERKZEUG
Title (fr)
DISPOSITIF POUR EJECTER DES PIECES FACONNEES D'UN OUTIL DE FACONNAGE
Publication
Application
Priority
- CH 0200622 W 20021119
- CH 21562001 A 20011122
Abstract (en)
[origin: WO03043759A1] The invention relates to a so-called spring cushion (5), for the ejection of moulded pieces (4) from a moulding tool (3), with a plunger (6), moving in a guide tube (9) within the moulding tool and loaded in the ejection direction (14) by means of a spring (15). According to the invention, the spring (15) is embodied as a draw spring, in particular as a spiral draw spring. Considerably longer service life can be achieved as draw springs do not have radial deflections on loading.
IPC 8 full level
B21D 45/02 (2006.01); B21D 45/04 (2006.01)
CPC (source: EP KR US)
B21D 45/02 (2013.01 - EP KR US)
Designated contracting state (EPC)
CH DE GB LI PT
DOCDB simple family (publication)
WO 03043759 A1 20030530; AU 2002340702 A1 20030610; CN 1270843 C 20060823; CN 1585680 A 20050223; DE 50210394 D1 20070809; EP 1446247 A1 20040818; EP 1446247 B1 20070627; JP 2005509524 A 20050414; KR 20040066840 A 20040727; US 2004255636 A1 20041223; US 7254979 B2 20070814
DOCDB simple family (application)
CH 0200622 W 20021119; AU 2002340702 A 20021119; CN 02822579 A 20021119; DE 50210394 T 20021119; EP 02774242 A 20021119; JP 2003545426 A 20021119; KR 20047007815 A 20021119; US 49502604 A 20040510