| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a crawler type traveling device for a working vehicle which can apply proper tension to a crawler belt having a variable circumferential length. <P>SOLUTION: The device includes: a truck frame 10 supporting a plurality of track rollers 12; a front idler provided on one side of front and rear ends of the truck frame 10; a drive wheel provided on the other side of the front and rear ends of the truck frame; the crawler belt 11 wound around the front idler, the drive wheel and the track rollers 12; and a carrier roller 13 for pushing up the crawler belt 11 above the truck frame 10. A body frame supporting the truck frame 10 includes: the carrier roller 13; and an elastic body 32 for biasing the carrier roller 13 in a tension direction directed to the upside of the crawler belt 11. <P>COPYRIGHT: (C)2013,JPO&INPIT |
