| 摘要 |
PROBLEM TO BE SOLVED: To prevent a large thrust from acting on a bearing part of a power cut mechanism, to prevent a damage and a seize in the bearing part from being generated accompanied thereto, so as to enhance durability and reliability of the power cut mechanism, even when excessive frontward movement is brought in a shaft side in connection between a transmission shaft and an input coupling of a final deceleration gear by the power cut mechanism. SOLUTION: This vehicular reduction gear constituted to penetrate insides of hollow parts in an output shaft and the input shaft so as to break power between a transmission shaft and an input coupling is provided with the first shaft screwed in a screw part in an inner circumference of the input shaft and connected to the input coupling, the second shaft engaged with the first shaft to be movable axis-directionally and journaled to the output shaft, and a switching mechanism for fixing or switching relatively rotatably a coupling condition between a support plate for fixing or supporting selectively the second shaft rotatably, and the second plate. COPYRIGHT: (C)2004,JPO
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