EP 0448481 A1 19910925 - Operating mechanism for a switch with three positions.
Title (en)
Operating mechanism for a switch with three positions.
Title (de)
Antrieb für einen Dreistellungsschalter.
Title (fr)
Mécanisme de commande d'un interrupteur à trois positions.
Publication
Application
Priority
FR 9003794 A 19900323
Abstract (en)
A mechanism for operating a three-position switch having a main contact-carrier shaft (10) includes a control device (14) for closing and opening the switch, and a control device (15) for earthing. The two devices include drive-plates connected by a common spring (27) capable of being armed by the rotation of any one of the control shafts and of transmitting, after crossing the dead point, a motive motion for driving these plates, transmitted by levers hinged to a crank (32) fastened onto the main shaft (10). All the operations are abrupt and the torque transmitted to the main shaft increases during the operating motion. A locking device keeps the main shaft in the open position during the spring-arming phase. <IMAGE>
IPC 1-7
IPC 8 full level
H01H 3/32 (2006.01); H01H 3/30 (2006.01); H01H 33/42 (2006.01)
CPC (source: EP US)
H01H 3/3047 (2013.01 - EP US); H01H 2003/3068 (2013.01 - EP US)
Citation (search report)
- [A] EP 0058585 A1 19820825 - MERLIN GERIN [FR]
- [A] EP 0286474 A1 19881012 - MERLIN GERIN [FR]
- [AD] FR 2606209 A1 19880506 - MERLIN GERIN [FR]
- [A] US 3959615 A 19760525 - ZAFFRANN JR ALBERT A, et al
Designated contracting state (EPC)
BE CH DE ES GB IT LI NL SE
DOCDB simple family (publication)
EP 0448481 A1 19910925; EP 0448481 B1 19950830; BR 9101105 A 19911105; CA 2038078 A1 19910923; CA 2038078 C 20011204; DE 69112461 D1 19951005; DE 69112461 T2 19960418; ES 2079610 T3 19960116; FR 2660109 A1 19910927; FR 2660109 B1 19920605; ID 855 B 19960802; JP 3219782 B2 20011015; JP H04249820 A 19920904; MX 167070 B 19930301; US 5148913 A 19920922; ZA 912118 B 19911127
DOCDB simple family (application)
EP 91420083 A 19910307; BR 9101105 A 19910321; CA 2038078 A 19910312; DE 69112461 T 19910307; ES 91420083 T 19910307; FR 9003794 A 19900323; ID 922140 A 19920131; JP 8343391 A 19910322; MX 2496991 A 19910319; US 66816391 A 19910312; ZA 912118 A 19910321