A - Human Necessities – 47 – C
Patent
A - Human Necessities
47
C
A47C 7/00 (2006.01) A47C 1/027 (2006.01) A47C 7/44 (2006.01)
Patent
CA 2486243
The present invention provides a switching apparatus having a design intended to reduce wear on its key part. In an embodiment of the invention, a rotatable member is rotatably fixed on a pivot. A slidable bearing member has a first surface for engaging the rotatable member in a non-sliding manner, and an opposite second surface for slidingly engaging an abutment. Any significant wear on the switching apparatus is more likely to occur between the sliding member and the abutment, rather than between the rotatable member and the sliding member. In an embodiment, one of the rotatable member and the slidable bearing member includes a protuberance, and the other of the rotatable member and the slidable bearing member includes a corresponding indentation for engagement with the protuberance. The join formed between the protuberance and indentation provides a substantially non-sliding engagement between the rotatable member and the slidable bearing member.
La présente invention concerne un appareil commutateur comportant une conception visant à réduire l'usure sur sa partie clé. Dans un modèle de l'invention, un élément rotatif est fixé de manière pivotante sur un pivot. Un élément porteur coulissant est doté d'une première surface pour engager l'élément rotatif dans une manière non coulissante, et une deuxième surface opposée pour engager de manière coulissante une butée. Toute usure importante sur un appareil commutateur est plus vraisemblablement de se produire entre l'élément coulissant et la butée plutôt qu'entre l'élément rotatif et l'élément coulissant. Dans un autre modèle, un des éléments rotatifs et l'élément porteur coulissant incluent une protubérance, et l'autre élément rotatif et l'élément porteur coulissant incluent une indentation correspondante pour un engagement avec la protubérance. Le joint formé entre la protubérance et l'indentation fournit un engagement essentiellement non coulissant entre l'élément rotatif et l'élément porteur coulissant.
Matern Gerard J.
Patton Arthur A.
Fetherstonhaugh & Co.
Leggett & Platt Canada Co. (societe Leggett & Platt Canada)
Leggett & Platt Ltd.
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