| 摘要 |
The present invention aims at simplifying the structure of the inside of a transmission portion and the inside of a clutch portion. Accordingly, in the present invention, a drive shaft is interlockingly connected to an engine by way of a clutch, a distribution power transmission body is mounted on the drive shaft, and a traveling-system power transmission mechanism and a PTO-system power transmission mechanism are interlockingly connected with the distribution power transmission body in parallel. Accordingly, it is possible to form the drive shaft using a single shaft and a clutch is also formed of the single clutch structure and hence, the structure in the inside of the transmission portion and the structure in the inside of the clutch portion can be simplified and, at the same time, miniaturized whereby a manufacturing cost can be also lowered. Further, by performing a disconnection operation of the clutch, it is possible to simultaneously terminate the power transmission of both transmission systems consisting of the traveling-system power transmission mechanism and the PTO-system power transmission mechanism whereby the manipulation property can be enhanced.
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