To provide a transmission mechanism capable of changing the rotating speed in a simple structure at a low cost.
This transmission mechanism changes the rotating speed by converting the rotation of the output of a front wheel driving motor 8 in the normal direction and the reverse direction, and it is furnished with a first one- way clutch 61, a second one-way clutch 62, a rotating speed converting means and a rotating direction reversing means. The first one-way clutch 61 transmits the rotation when the output of the front wheel driving motor 8 is in the normal rotation. The second one-way clutch 62 transmits the rotation when the output of the front wheel driving motor 8 is in the reverse direction. The rotating speed converting means converts the rotating speed transmitted by the first or the second one-way clutch 61 or 62. The rotating direction reversing means converts the rotating direction of the rotation transmitted by the first one-way clutch 61.
EGUCHI YASUHIKO
KAKEHI TORU
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