Rotating shaft locking mechanism

B - Operations – Transporting – 25 – F

Patent

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Details

B25F 5/00 (2006.01) B24B 23/02 (2006.01) B27B 5/38 (2006.01)

Patent

CA 2553427

A locking mechanism (10) for a rotary power tool that includes an elongated locking member (32) that is retained by, and is at opposite first and second end portions within, at least one of a motor housing (12) and a gearbox end casting (14) and being slideable between unlocked and locked positions, the locking member (32) first end portion (34) being accessible by a user to move the locking member to the locked position. The locking member (32) also includes a locking portion (44) intermediate the first and second end portions (36) that is configured to engage the non-circular configured portion (48) of a rotatable armature shaft (50) and prevent rotation thereof when the locking member is in its locked position. A biasing element (58) is also included and configured to bias the locking member toward said unlocked position.

L'invention concerne un mécanisme de verrouillage (10) pour un outil mécanique rotatif qui comprend un élément de verrouillage (32) allongé possédant une première et une deuxième partie d'extrémité opposées et qui est retenu par un logement de moteur (12) et/ou une pièce moulée d'extrémité de boîte de vitesses (14), et qui peut coulisser entre une position verrouillée et une position non verrouillée, la première partie d'extrémité (34) de l'élément de verrouillage (32) offrant un accès à un utilisateur afin que ledit élément de verrouillage soit déplacé en position verrouillée. Cet élément de verrouillage (32) comprend également une partie de verrouillage (44) située entre les première et deuxième parties d'extrémité (36), conçue pour entrer en contact avec la partie non circulaire (48) d'un arbre d'induit rotatif (50 )et empêcher la rotation de ce dernier lorsque l'élément de verrouillage est en position verrouillée. Un élément de sollicitation (58) est également présent et conçu pour solliciter l'élément de verrouillage en position non verrouillée.

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