Kupplungsmechanismus

摘要

1,149,587. Controlling clutches. LITOLLO A.S. 9 Aug., 1967 [14 Sept., 1966], No. 36581/67. Heading F2L. In a friction, claw, or facial pin and recess coupling comprising a first member 10 freely rotatable on a shaft 1, which is hollow at least at one end, a second member 7 rotatable with but axially slidable along the shaft 1 and urged by a spring 8 into coupling engagement with the first member 10, insertion of a hand crank 12 into the hollow shaft end first disengages the coupling and then brings the projecting ends of a pin 13 through the crank 12 into driving engagement with slots 14 in the end of shaft 1. In Fig. 1, curved radial pawls 4 pass through slots 3 in shaft 1 into slots 6 of member 7 to couple member 7 to shaft 1. When crank 12 is inserted, its end pushes the pivoted together ends of pawls 4 causing them to urge member 7 against spring 8 to disengage the coupling. Then the pin 13 engages the slots 14. When the crank 12 is released, spring 8 acts via member 7 and pawls 4 to push it out of engagement with collar 9. In Fig. 3, the crank acts on a transverse pin 15 keying the member 71 to shaft 11 to push the member 71 out of engagement with the member 101, against spring 81. The member 10 or 101 constitutes the normal driving member of the coupling.