| 摘要 |
A crawler traveling device (1) has an idler tumbler moving mechanism (4) making the idler (3) freely movable relative to the track frame (2) in a traveling direction, and a first support guide (91) and a second support guide (92), respectively arranged between the idler (3) and a carrier roller (711) and between a sprocket (5) and a carrier roller (721). The first support guide (91) comprises a first guide roller (911) having an outer diameter smaller than that of the carrier rollers (711 and 712), and a first bracket (912) rotatably attaching the first guide roller (911) to a yoke (41). The second support guide (92) includes a second guide roller (921) having an outer diameter smaller than that of the carrier rollers (711 and 712), and a second bracket (922) rotatably attaching the second guide roller (921) to the track frame (2). |
