| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To enhance the reliability of the assembly accuracy in assembly by simplifying a link mechanism of a speed change operation device and unitizing the speed change operation device. <P>SOLUTION: A forward pedal 21 and a backward pedal 22 are turnably supported by an installation plate 3 fixed to a vehicle frame, and a speed change operation interlocking turning cylinder 73 which is connected to a base end of the forward pedal 21 (a forward pedal turning cylinder 21a) and a base end of the backward pedal 22 (a backward pedal turning cylinder 22a) respectively via one link 21/22c is turnably supported by the installation plate 3. The forward pedal 21, the backward pedal 22, the speed change interlocking turning cylinder 73 and the installation plate 3 are constituted as an integrated unit. The speed change operation interlocking turning cylinder 73 is rotated in the forward/backward direction in an interlocking manner with the operation of the forward pedal 21 and the backward pedal 22 to tilt swash plates of a hydraulic pump and a hydraulic motor of a HST 4. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
