Fuse cutout with mechanical assist

Details Fuse cutout with mechanical assist Fuse cutout with mechanical assist

H - Electricity

01

H

H01H 85/055 (2006.01) H01H 31/12 (2006.01) H01H 71/10 (2006.01) H01H 85/04 (2006.01)

Patent

CA 2407369

A fuse cutout (10) for connection to a power source comprising, a mounting (12) having upper (32) and lower (34) support members extending from opposing ends of the mounting (12), respectively. A holder member (22) fixedly attached to the lower support (34) of the mounting (12). A pivot member (24) received in the holder (22) at a first pivot point (1370), the pivot member (24) being movable between first and second positions. A fuseholder (26) having upper and lower ends, the lower end being pivotally attached to the pivot member (24) at a second pivot point (139), the fuseholder (26) being movable between closed and open positions corresponding to the first and second positions of the pivot member (24) respectively. A first biasing member (118) disposed between the pivot member (24) and the lower end of the fuseholder (26) at the second pivot point (139), biasing the pivot member (24) toward the second position. The pivot member (24) includes a planar cam surface (134) that engages a lower contact (92) of the holder member (22).

L'invention concerne un coupe-circuit à fusible (10) à connecter à une alimentation, comprenant une monture (12) possédant des éléments de support supérieur (32) et inférieur (34) s'étendant respectivement depuis les extrémités opposées de ladite monture (12). Un élément porteur (22) est fixé solidaire au support inférieur (34) de la monture (12). Un élément pivot (24) est logé dans l'élément porteur (22) au niveau d'un premier point de pivot (1370), et est mobile entre des première et seconde positions. Un porte-fusible (26) comportant des extrémités supérieure et inférieure, l'extrémité inférieure étant fixée pivotante à l'élément pivot (24) en un second point de pivot (139), est mobile entre des positions ouverte et fermée correspondant respectivement aux première et seconde positions de l'élément pivot (24). Un premier élément de sollicitation (118) prévu entre l'élément pivot (24) et l'extrémité inférieure du porte-fusible (26) au niveau du second point de pivot (139), sollicite l'élément pivot (24), de manière qu'il se mette dans la seconde position. L'élément pivot (24) comporte une surface de came plane (134) qui vient en contact avec un contact inférieur (92) de l'élément porteur (22).

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