OUTBOARD MOTOR

摘要

The outboard motor includes a lower unit that rotatably supports a propeller shaft and a shift unit that switches a shift position. A drive shaft that transmits rotational power to the propeller shaft has upper and lower drive shafts provided coaxially and in series side by side. The shift unit has an upper gear rotating in synchronization with the upper drive shaft, a lower gear provided rotatably with respect to the lower drive shaft, an intermediate gear that transmits rotation of the upper gear to the lower gear, and a bearing that rotatably supports the middle shaft provided with the intermediate gear. The intermediate gear and the bearing are modularized and are detachably installed to the lower unit.

主权项

1. An outboard motor comprising:
an upper unit where an engine is housed; a lower unit that rotatably supports a propeller shaft where a propeller is installed; a middle unit provided between the upper and lower units to house a part of a drive shaft that transmits rotational power from the engine to the propeller shaft; and a shift unit that switches a shift position, wherein the drive shaft has first and second drive shafts coaxially provided in series side by side, the shift unit has
a first gear rotating in synchronization with the first drive shaft,a second gear provided coaxially with the second drive shaft and rotatably with respect to the second drive shaft,an intermediate gear that meshes with the first and second gears to transmit rotation of the first gear to the second gear, anda bearing that rotatably supports a middle shaft provided with the intermediate gear, the shift unit is housed in a shift unit chamber, and the intermediate gear and the bearing that supports the intermediate gear are modularized and are detachably installed in the shift unit chamber.