| 摘要 |
A differential mechanism (10) having two output cam members (16, 17) rotatable about an axis (X-X), each cam member having a single annular frustoconical cam surface (22, 23) thereon of undulating form comprising pairs of mutually inclined surfaces (24, 25:26, 27) and a plurality of cam followers (28) having end surfaces (29, 30:32, 33) engaging the cam surfaces (22, 23) of the output cam members (16, 17). Relative contra rotation of the output cam members (16, 17) causes the cam followers (28) to slide axially and an input member (11) engages the followers which are slidably supported by the input member and moves the followers circumferentially relative to the output cam members (16, 17). A locking means (60, 83) is also provided for locking the output cam members (16, 17) and/or the input member (11) against relative rotation to lock up the differential mechanism. |
