| 摘要 |
The object is to provide a switching device for switching driving force between forward and reverse directions in which the same intermediate shaft can be used both when a spring clutch is used and when a roller clutch is used. The switching device includes an input gear 14, an output gear 15, and a switching mechanism 10 for switching the rotational direction disposed between the input and output gears. The switching mechanism 10 includes an intermediate bevel gears 22 supported on an intermediate shaft 12 and meshing with an input bevel gear 16 and an output bevel gear 17, a control gear 39 having a release arm portion 41 and a stopper arm portion 42, and a one-way clutch fitted in a radially inner surface of a clutch receiving portion integral with the input bevel gear 16. When a spring clutch 25 is used as the one-way clutch, an adaptor portion 30 is provided on a coupling member 28 of the spring clutch 25, which is fitted on the intermediate shaft 12. When a roller clutch 55 is used as the one-way clutch, an adaptor portion 57 of the same structure is provided on its inner ring 56.
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