| 摘要 |
<p>An improved differential gear mechanism is characterized by a cam mechanism (41 ) including a first cam member (42) fixed to rotate with one of said output gears (23, 25) and a second cam member (43) free to rotate relative to said first cam member (42) and said output gear (23, 25). The first cam member (42) defines a first cam surface (45) and the second cam member (43) defines a second cam surface (47) engagable with the first cam surface to impart movement of the second cam member (43) along axis (A-A). The first cam member (42) comprises a powdered metal component, which provides consistency in the cam surface profile and eliminates the substantial capital equipment needed to machine the cam surface (45).</p> |
