| 摘要 |
PURPOSE:To work a function of a differential lock completely by a mechanism wherein a cam concave surface is formed onto an inner surface of a drive member and concave stage sections onto the outer surfaces of the large diameter sections of axles, and rollers are arranged among the cam concave surface and the concave stage sections. CONSTITUTION:A cam concave surface 9 is made up onto an inner circumferential surface of a drive member 4, concave stage sections 1c, 2c are built up at the mutually adjacent outer surface insides of the large diameter sections 1b, 2b of axles 1, 2, and a pair of rollers 7, 8 are disposed among the cam concave surface 9 and the concave stage sections 1c, 2c. Thus, since the rollers 7, 8 are connected to the cam concave surface 9 and the concave stage sections 1c, 2c and torque can uniformly be distributed and transmitted to both axles 1, 2 even when one of the two axles 1, 2 is brought to low load, the efficiency of a differential lock is increased to 100%, and a function of the differential lock can be worked completely.
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