EP 0153810 A1 19850904 - Tool for and method of making hollow articles.
Title (en)
Tool for and method of making hollow articles.
Title (de)
Werkzeug und Verfahren zur Herstellung hohler Gegenstände.
Title (fr)
Outil et procédé pour la fabrication d'articles creux.
Publication
Application
Priority
GB 8404321 A 19840218
Abstract (en)
A tool for use in the manufacture of the outer member of a cross-groove type of constant velocity ratio universal joint by forming a blank in a die with the tool in the interior of the blank to define the internal shape of the joint member. The tool comprises first and second elements (33, 37) with portions (34, 38) which together define the shape required in the joint outer member, having formations (34a, 38a) which form the grooves therein, and have an internal cavity (40) which receives an expander (23) to hold the elements in their operative positions. After withdrawal of the expander, the first elements (33) can be moved radially inwardly to disengage them from the formed joint member and withdrawn, following which the second elements (34) can be moved inwardly and subsequently withdrawn.
IPC 1-7
IPC 8 full level
B21D 53/84 (2006.01); B21J 5/12 (2006.01); B21K 1/14 (2006.01); B21K 1/76 (2006.01)
CPC (source: EP US)
B21J 5/12 (2013.01 - EP US); B21K 1/762 (2013.01 - EP US); B21K 1/765 (2013.01 - EP)
Citation (search report)
- [X] EP 0013545 A1 19800723 - VER EDELSTAHLWERKE AG [AT]
- [X] FR 2474909 A1 19810807 - LIEBERGELD RUDOLF [DE]
- [A] EP 0023581 A1 19810211 - CATERPILLAR TRACTOR CO [US]
- [A] EP 0094875 A1 19831123 - LUCHAIRE SA [FR]
- [A] DE 2830275 B2 19801113
Designated contracting state (EPC)
IT
DOCDB simple family (publication)
EP 0153810 A1 19850904; EP 0153810 B1 19880720; AT E35784 T1 19880815; AU 3887985 A 19850910; AU 583260 B2 19890427; BR 8507121 A 19870714; CA 1272371 A 19900807; DE 3563821 D1 19880825; EP 0201499 A1 19861120; ES 540499 A0 19851216; ES 8603308 A1 19851216; GB 2183187 A 19870603; GB 2183187 B 19880615; GB 8404321 D0 19840321; GB 8618146 D0 19860903; JP S61501831 A 19860828; MX 162499 A 19910513; WO 8503655 A1 19850829; ZA 85834 B 19850925
DOCDB simple family (application)
EP 85300486 A 19850124; AT 85300486 T 19850124; AU 3887985 A 19850124; BR 8507121 A 19850124; CA 473871 A 19850208; DE 3563821 T 19850124; EP 85900708 A 19850124; ES 540499 A 19850218; GB 8404321 A 19840218; GB 8500036 W 19850124; GB 8618146 A 19850124; JP 50057385 A 19850124; MX 20434885 A 19850215; ZA 85834 A 19850204