Multi-functional electrical switch assembly with momentary...

H - Electricity – 01 – H

Patent

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Details

H01H 13/52 (2006.01) H01H 3/32 (2006.01) H01H 25/06 (2006.01)

Patent

CA 2207562

A multi-function electrical switch assembly (22) is disclosed that is mountable to a mosaic control panel (12) used in the controlling and monitoring of large complex traffic flow systems. The switch assembly has a bi-directional actuating mechanism including a shaft (24) that is movable axially as well as rotationally to actuate individual electrical switches (110, 112, 114, 115, 118, 120, 122, and 124). The switch assembly includes a housing (30) having an interior cavity (56) and interior walls (36, 46) to which individual switches are secured. The shaft (24) extends through the interior cavity (56) and has a rocker cam (224) and a linear cam (254) coupled thereto for actuation of various combinations of the switches. Return spring units (202) and (168) return the shaft (24) to its rotational and axial neutral positions when the shaft is released. An override spring unit (244) is coupled to the rocker cam (224) to absorb over-rotation of the shaft (24) and prevent damage to the switch mechanism.

Commutateur électrique multi-fonction (22) pouvant être monté sur un tableau de connexions en mosaïque (12) utilisé dans le contrôle et la surveillance de systèmes d'écoulement de trafic de grande envergure. Le commutateur présente un mécanisme de manoeuvre bidirectionnelle comprenant un arbre (24) qui peut se déplacer dans le sens de l'axe ainsi que de manière rotative pour actionner des commutateurs électriques individuels (110, 112, 114, 115, 118, 120, 122 et 124). Le commutateur comprend un logement (30) comportant une cavité intérieure (56) et des parois intérieures (36, 46) sur lesquelles sont fixés des commutateurs individuels. L'arbre (24) se prolonge à l'intérieur de la cavité (56) et comporte une came à bascule (224) et une came linéaire (254) accouplées à l'arbre pour actionner différentes combinaisons de commutateurs. Des unités de ressort de rappel (202) et (168) retournent l'arbre (24) à ses positions neutres axiales et rotationnelles lorsque l'arbre est relâché. Un ressort de rappel prioritaire (244) est couplé (244) à la came à bascule (224) pour absorber la rotation excessive de l'arbre (24) et empêcher d'endommager le mécanisme de l'interrupteur.

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