EP 0137714 A1 19850417 - Improvements in or relating to relays.
Title (en)
Improvements in or relating to relays.
Title (de)
Elektromagnetisches Relais.
Title (fr)
Relais électromagnétique.
Publication
Application
Priority
GB 8324303 A 19830910
Abstract (en)
A relay includes an electromagnet and an armature (8 min ) for causing a displacement of a pair of spring arms (20 min ) in a respective sense in dependence on energisation or de-energisation of the electromagnet Each spring arm is arranged to make an electrical connection between one member of a respective set of contact members and, in dependence on the sense of displacement, a selected one of two other members (14 min , 15 min ) in the same set. A trip plate (9 min ) mounted on the armature, acts on both spring arms and has a protrusion (32) which permits pivotal movement of the trip plate relative to the armature; the spring arms are subjected to substantially equal amounts of pressure as they are displaced. The protrusion may have a convex surface (32) or may comprise a pair of flat surface which meet at an apex to establish a pivot.
IPC 1-7
IPC 8 full level
H01H 50/64 (2006.01)
CPC (source: EP)
H01H 50/643 (2013.01)
Citation (search report)
- [APD] GB 2121605 A 19831221 - KEYSWITCH VARLEY LTD
- [A] US 2547062 A 19510403
Designated contracting state (EPC)
CH DE FR GB LI SE
DOCDB simple family (publication)
DOCDB simple family (application)
EP 84306057 A 19840905; GB 8324303 A 19830910