| 摘要 |
PROBLEM TO BE SOLVED: To provide a crawler traveling device capable of switching a lifting height specification providing a large lifting height, and a lifting power specification providing a large lifting power by using the same hydraulic cylinder and the same stroke. SOLUTION: Pins 25 and 27 capable of connecting the hydraulic cylinder 15 so as to change the turning radius centering a turning axis 22R are installed in a driving arm part 14R of a link 12R. The link 12R can be set to the first specification of dividing the driving arm part 14R to the front and the rear of the driving shaft 22R, and the second specification of carrying out the turning only at the rear part of the driving shaft 22R. In the lifting power specification, the link 12R is set to the second specification, and the hydraulic cylinder 15 is connected to the pin 25 with a long turning radius of the driving arm part 14R, and in the lifting height specification, the link 12R is set to the first specification, and the hydraulic cylinder 15 is connected to the pin 27 of the driving arm part 14R. COPYRIGHT: (C)2008,JPO&INPIT
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