Contact device

H - Electricity – 01 – H

Patent

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Details

H01H 1/50 (2006.01) H01H 9/34 (2006.01) H01H 50/04 (2006.01) H01H 50/54 (2006.01) H01H 50/56 (2006.01)

Patent

CA 2484172

Each movable contact 15 is given a first force by a drive mechanism along a direction for bringing the movable contact into contact with a fixed contact 5 and given a second force through a leg 14b by deformation of a supporting member 14c resulted from an overtravel of the movable plate 14. The fixed contact and the movable contact are arranged such that a resultant force of the first and the second forces acts in a direction normal to a contact surface defined between the fixed contacts and the movable contacts. So, a component force of the resultant force parallel to the contact surface is not generated, therefore, a side slip of the movable contact can be prevented when the contacts are opened or closed.

L'invention concerne une plaque mobile (14) actionnée par un mécanisme d'actionnement et qui imprime une force sur un point de contact mobile (15) dans le sens de mouvement du point de contact jusqu'à ce que le point de contact soit en contact avec un point de contact fixe (5). De plus, l'inclinaison d'une bande de support (14c) produite lorsque la plaque mobile (14) est traversée permet d'imprimer une force sur le point de contact mobile (15) à travers une bande de jambe (14b). Le sens de la ligne normal au niveau de la surface de contact entre le point de contact fixe (5) et le point de contact mobile (15) est aligné sur le sens de la résultante des deux forces. Ainsi, il n'y a pas de force composante de pression de contact, cette force composante étant parallèle à la surface de contact entre le point de contact fixe (5) et le point de contact mobile (15), si bien que le glissement du point de contact mobile (15), lorsque les points de contact sont ouverts et fermés, peut être évité.

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