One-way clutch assembly featuring improved strut stability

F - Mech Eng,Light,Heat,Weapons – 16 – D

Patent

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Details

F16D 15/00 (2006.01) F16D 41/12 (2006.01)

Patent

CA 2436970

A planar one-way clutch (10) includes a pair of clutch members (12, 14) whose operative faces are disposed in close-space opposition, with each clutch face including a plurality of recesses (26, 38) defining respective load-bearing shoulders (28, 46). A plurality of struts (18), disposed between the coupling faces of the members (12, 14), and movable between a coupling position and a non-coupling position, mechanically couple the members (12, 14) for rotation when one member rotates in one direction (20) relative to the other member, while further permitting clutch overrun when the one member rotates in the other direction relative to the other member. The recesses of one member each include a ramped surface (48) opposite the member's load-bearing shoulder (46). Each ramped surface (48) includes a convex surface portion (50) which engages the struts (18) during clutch overrun so as to urge the struts (18) into the non-coupling position.

Un roue libre plan comprend une paire d'éléments dont les paliers opposés présentent un écart minime. Chaque palier comprend une pluralité d'évidements formant des épaulements de support de charge. Une pluralité de cliquets, placés entre les surfaces d'accouplement des éléments et pouvant se déplacer entre une position d'accouplement et une position de non accouplement, raccordent mécaniquement les éléments pour qu'ils se mettent en rotation lorsqu'un élément tourne dans un sens par rapport à un autre, ce qui permet également une passivation du roue libre lorsqu'un élément tourne dans un autre sens par rapport à l'autre. Les évidements d'un élément comprennent chacun une surface inclinée opposée à l'épaulement support de charge. Chaque surface inclinée présente une surface convexe qui vient en contact avec les cliquets pendant la rotation du roue libre de façon à pousser les cliquets sans qu'ils viennent en contact.

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