PURPOSE: To shift a middle plate certainly by half the moving quantity of a pressing plate, by providing in a differential transmission mechanism with a guide member connected with a pressure receiving plate, a rotor capable of rolling on the guide member, a driving member connected with the pressing plate and a support shaft connected with the middle plate.
CONSTITUTION: A differential transmission mechanism 6 has a guide member 7 connected with a fly-wheel 1 and a bearing 8 as a rotor capable of rolling on the guide member 7 while it rotates round the axis transverse to the moving direction of a pressing plate 2. And also is provided with a driving member 9 which makes contact with the outer periphery of the bearing 8 so as to rotate the bearing 8 according to movement of the pressing plate 2 and then connects with the pressing plate 2; a support shaft 10 which connects with a middle plate 4 so as to rotatably support the bearing 8 is provided. By this constitution, in a differential transmission mechanism 6, the middle plate 4 can be shifted by just half the moving quantity of the pressing member 2 according to move ment of the pressing plate 2.
ISHIKURA SHIZUO
JPS6146261U | 1986-03-27 | |||
JPS58192977U | 1983-12-22 |
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