| 摘要 |
A locking differential for an automotive vehicle including a housing and a differential mechanism supported in the housing. The differential mechanism includes a pair of clutch members disposed in spaced axial relationship with respect to each other wherein each clutch member includes a groove disposed in an opposed inwardly directing face that is adapted to receive a cross pin. Each of the grooves includes a working surface extending laterally relative to each other. Each of the working surfaces defines a screw involute surface such that the cross pin contacts the working surface along a line extending in the direction of the cross pin in the event of differential rotation of an axle half shaft relative to the housing. Alternatively, each of the working surfaces defines a slightly convex surface in one plane such that the cross pin contacts the working surface at a point defined thereon. In another embodiment, the working surface defines a slightly convex surface in two planes such that the cross pin contacts the working surface at a point defined thereon.
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