Electric circuit actuating mechanism

H - Electricity – 01 – H

Patent

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Details

H01H 3/02 (2006.01) H01H 3/14 (2006.01)

Patent

CA 2203249

A mechanism (10) for actuating an electric circuit is shown including a switch box (11) fastened to a housing (26) to which a cover (60) is movably mounted. The threaded stems (54) of four de-energizing momentary switches (52) extend through and are held to the front wall (32) of the housing (26). The cover (60) includes a sleeve extending rearwardly of its broad surface front wall (62) and slideably received in a tubular extension (46) of the housing (26). A flange (72) on the sleeve abuts with the ledges (50) formed in the tubular extension (46) to prevent movement therebeyond. The cover (60) can be pushed against the bias of coil springs (74) arranged concentrically around the stems (54) such that any point of the broad surface front wall (62) can be moved in an actuation direction to slide the actuation pins (58) slideable in the stems (54) of one or more of the de-energizing switches (52) to de-energize the electric circuit. The electric circuit is energized by actuating an energizing momentary switch (18) mounted to the switch box (11).

Un mécanisme (10) de commande de circuit électrique comprend un boîtier de commutation (11) fixé à un logement (26) sur lequel un couvercle (60) est monté de façon mobile. Les tiges filetées (54) de quatre interrupteurs instantanés (52) de mise hors tension traversent la paroi frontale (32) du logement (26) où elles sont assujetties. Le couvercle (60) comprend une jupe partant vers l'arrière de sa paroi frontale (62) de grande surface, et pouvant coulisser dans un prologement tubulaire (46) du logement (26). Une collerette (72), placée sur la jupe vient en aboutement avec des nervures (50) situées sur ce prolongement tubulaire (46), empêchant son mouvement au-delà de celles-ci. Ce couvercle (60) peut être poussé contre la résistance de ressorts à boudin (74) disposés concentriquement autour des tiges (54) de façon que tout point de la paroi frontale (62) de grande surface puisse être déplacé vers une position de commande pour faire coulisser les broches de commande (58) dans les tiges (54) d'un ou de plusieurs interrupteurs (52) pour mettre hors tension le circuit électrique. Celui-ci est mis sous tension lorsqu'on appuie sur un interrupteur instantané (18) de mise hors tension monté sur le boîtier de commutation (11).

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