EP 0403719 A1 19901227 - Improvements in and/or relating to machines for making coil springs.
Title (en)
Improvements in and/or relating to machines for making coil springs.
Title (de)
Maschine zur Herstellung von Schraubenfedern.
Title (fr)
Machine pour la fabrication de ressorts cylindriques.
Publication
Application
Priority
EP 89830281 A 19890620
Abstract (en)
The improvements are specifically related to the mechanical assembly for setting the start and end of the coil turns,which assembly comprises a shaft (1) thereon there is keyed a coaxial annular element (2) which slidingly supports,on its two sides (3) and with diametrically opposite arrangements,corresponding cam holders (6) provided with a circumferantial slot (4). Through these slots a plate (9) can slide,having a rectilinear ridge (11) and cantilever wise formed at the perimeter of a collar (10) rigidly coupled with the shaft,the ridge engaging a corresponding hollow of a related cam (8),and the plate bidirectional translation being controlled by a screw-nut assembly (18-20).
IPC 1-7
IPC 8 full level
B21F 3/02 (2006.01); B21F 35/02 (2006.01)
CPC (source: EP)
B21F 3/02 (2013.01); B21F 35/02 (2013.01)
Citation (search report)
- [A] US 2964068 A 19601213 - VOORST NELSON T VAN
- [A] US 3194282 A 19650713 - BERGEVIN CHARLES R, et al
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR LI NL SE
DOCDB simple family (publication)
DOCDB simple family (application)
EP 89830281 A 19890620