EP 0000635 A1 19790207 - Snap acting switch blade and method for manufacturing it.
Title (en)
Snap acting switch blade and method for manufacturing it.
Title (de)
Schnappfeder und Verfahren zu deren Herstellung.
Title (fr)
Lame à action brusque et sa méthode de fabrication.
Publication
Application
Priority
GB 2988977 A 19770715
Abstract (en)
A snap action switch blade has two resilient legs (4, 5) which project from an integral base portion (1) beyond and on each side of a tongue (3) to which an operating force (P) is applied. The legs are joined together by a contact element (8) which is welded to two inwardly projecting arms (6, 7) at the free ends of the legs, drawing the latter together to stress the blade with a dish deformation. The two inwardly projecting arms (6, 7) may be narrower than the legs, their common centreline being spaced from the centre of the contact so that a twisting action is imparted to the contact prior to its separation from a fixed contact, assisting in breaking any contact welds.
IPC 1-7
IPC 8 full level
H01H 5/20 (2006.01)
CPC (source: EP)
H01H 5/20 (2013.01)
Citation (search report)
- FR 2291598 A1 19760611 - RANCO INC [US]
- FR 1142435 A 19570918
- US 2805297 A 19570903 - CAMPBELL GREGG J
- CH 496311 A 19700915 - ADOLF FELLER AG FABRIK ELEK SC [CH]
- DE 2002659 A1 19710805 - SIEMENS AG
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0000635 A1 19790207; EP 0000635 B1 19810729; DE 2860881 D1 19811029
DOCDB simple family (application)
EP 78300146 A 19780712; DE 2860881 T 19780712