Dog clutch mechanism for outboard motor

B - Operations – Transporting – 63 – H

Patent

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Details

B63H 20/20 (2006.01) F16H 55/08 (2006.01) F16H 55/17 (2006.01)

Patent

CA 2699014

A dog clutch mechanism incorporated in an outboard motor includes a sliding clutch dog member (22) splined to a propeller shaft (21) and having recesses (22d, 22e) on each end face thereof, and a row of gear teeth (16a, 17a) formed on an end face of each of a pair of driven gears (16, 17) rotatably mounted on the propeller shaft. Each of the recesses has a bottom surface (22k) stepped to provide a corner edge (22r) at a stepped portion thereof. Each of the gear teeth has a beveled surface (16g) formed at a rear edge as viewed from a rotating direction of the driven gear. When the gear teeth are in mesh with the recesses of the clutch dog member, the corner edge of the stepped bottom surface of each recess is in contact with the beveled surface of the mating gear tooth.

Un mécanisme d'embrayage à griffes intégré dans un moteur hors-bord inclut un élément d'embrayage à griffes coulissant (22) cannelé à un arbre porte-hélice (21) et muni de retraits (22d, 22e) sur chaque face, et une rangée de dents d'engrenage (16a, 17a) formées sur une face d'extrémité sur chaque paire d'engrenages menés (16, 17) montés de manière rotative sur l'arbre porte-hélice. Chaque retrait est doté d'une surface inférieure (22k)étagée pour fournir un bord en coin (22r) à une partie étagée. Chaque dent d'engrenage est dotée d'une surface biseautée (16g) formée à un bord arrière comme visualisé à partir d'une direction de rotation de l'engrenage mené. Si les dents d'engrenage s'engrènent avec les retraits de l'élément d'embrayage à griffes, le bord en coin de la surface inférieure étagée de chaque retrait est en contact avec la surface biseautée de la dent d'engrenage qui lui est accouplée.

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