| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To decrease shock in a traveling gear shifting structure for a working vehicle wherein a transmission clutch is automatically operated into a disengaged state, and the transmission clutch is automatically operated into an engaged state again after operating a gear shifting mechanism by an actuator. <P>SOLUTION: A first controlling means is provided, which operates a second gear shifting mechanism 15 at a specified gear shifting position, operates a first friction clutch 9 into the disengaged state while operating a second friction clutch 12 into the engaged state, and operates the transmission clutch 6 from the engaged state to a semi-engaged state and gradually into the engaged state. A second controlling means is provided, which operates a first gear shifting mechanism 13 at a specified gear shifting position, operates the second friction clutch 12 into the disengaged state while operating the first friction clutch 9 into the engaged state, and operates the transmission clutch 6 from the engaged state to the semi-engaged state and gradually into the engaged state. A third controlling means is provided, which obtains the gear shifting position due to a gear shifting command by alternately actuating the first and second controlling means. <P>COPYRIGHT: (C)2004,JPO</p> |
