| 摘要 |
In the present invention, a forward/reverse movement shift mechanism, which includes an intermediate gear (42) supported by an intermediate shaft (43) that is orthogonal to a drive shaft, is interposed between a first input shaft (171) and a second input shaft (172). A clutch body is constituted by a dog clutch (45) provided with engagement claws (451) at the top and the bottom thereof. The clutch body moves along the axial direction of the second input shaft (172) and engages with an upper side gear (41) or a lower side gear (44), thereby transmitting rotation of the first input shaft (171) to the second input shaft (172) so that forward or reverse rotation is possible. |
