| CPC F16D 41/07 (2013.01) [F16D 2041/0603 (2013.01); F16D 41/084 (2013.01)] | 5 Claims |
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1. A selectable clutch comprising:
an inner race and an outer race provided to be coaxial and rotatable relative to each other;
a plurality of cams disposed between the inner race and the outer race;
a cage ring circumferentially holding the plurality of cams;
a biasing means biasing each of the plurality of cams such that the plurality of cams come into contact with the inner race and the outer race; and
a selector configured to be able to forcibly tilt each of the plurality of cams,
the plurality of cams each being configured to have a center of gravity located such that each of the cams functions as an engaging type cam when the cams are oriented in engagement with the inner race and the outer race, and such that each of the cams functions as a disengaging type cam when the cams are in a tilted freewheel orientation not to contact with the inner race or the outer race,
wherein the selector is configured to move in a circumferential direction to forcibly shift a position of the center of gravity of each of the plurality of cams with respect to the circumferential direction to cause each of the cams to switch between functioning as the engaging type cam and functioning as the disengaging type cam,
wherein the center of gravity of each of the cams is positioned on an opposite side to an inner contact point of contact between the cam and the inner race relative to a normal line at an outer contact point of contact between the cam and the outer race when the cams are oriented in engagement with the inner race and the outer race, and positioned on a same side as the inner contact point when the cams are in the tilted freewheel orientation.
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