EP 0196599 A1 19861008 - Method of manufacturing hinge devices and hinge devices obtained thereby.
Title (en)
Method of manufacturing hinge devices and hinge devices obtained thereby.
Title (de)
Herstellungsverfahren eines Scharniers und dadurch erzeugte Scharniere.
Title (fr)
Méthode de fabrication de charnières et charnières ainsi obtenues.
Publication
Application
Priority
IT 4154185 A 19850405
Abstract (en)
The method comprises a first process step consisting of shearing a cylindrical drawn segment on which there is carried out a cold impact extrusion by means of a punch. In that step the material flows laterally up to form a constant pattern hollow body (9) having at least one open end, on the other end (8) there being formed a solid pin (11) and a second open cavity of a smaller size. On each hollow body there are then carried out successive upsetting at the open end, adapted to impart the same with an undulated conformation. That end is then upturned and blocked.
IPC 1-7
IPC 8 full level
B21K 13/02 (2006.01); E05D 5/10 (2006.01)
CPC (source: EP)
B21K 13/02 (2013.01); E05D 5/10 (2013.01); E05D 2005/102 (2013.01)
Citation (search report)
- [Y] FR 2418046 A1 19790921 - IND MECCA OTLAV A PADOVAN [IT]
- [Y] FR 2478720 A1 19810925 - RETREINT APPLIC [FR]
- [AP] EP 0170126 A2 19860205 - OTLAV SPA [IT]
- [A] DE 3307529 A1 19840906 - PFAEFFLI WALTER
Designated contracting state (EPC)
CH DE FR LI
DOCDB simple family (publication)
EP 0196599 A1 19861008; EP 0196599 B1 19910403; DE 3678474 D1 19910508; ES 293367 U 19860801; ES 293367 Y 19870416; IT 1188517 B 19880114; IT 8541541 A0 19850405
DOCDB simple family (application)
EP 86104071 A 19860325; DE 3678474 T 19860325; ES 293367 U 19860404; IT 4154185 A 19850405