| 摘要 |
PURPOSE:To improve groundability in a crawler as well as to prevent any drop in tractive force or the like from occurring, by installing a guide body, which comes into sliding contact with the vicinity of an inner surface at the side of the crawler and checks its upward motion, in a shaft end part of a track roller guilding grounding travel of the crawler as being rotated. CONSTITUTION:An endless beltlike crawler 1 is rolled on both driving and driven wheels 5 and 6. A platelike mandrel 8, making a pair of projections 7 jutting out to a central part is internally installed in the crawler 1, and a guide receiving part 10 having a groove 9 is projected out at both ends of the mandrel 8. On the other hand, a support rod 11 is installed in one side of the crawler 1, and plural fulcrum shafts 3 are installed in this support rod, while each of two-wheel solid-form track rollers 2 astride these projection parts 7 are rotatably supported on these fulcrum shafts 3. And, each arm 12 is hung down from both ends of each fulcrum shaft 3, and a guide body 4 to be slidably engaged with the groove 9 is installed in a lower end of the arm 12. With this constitution, in the case when the crawler 1 is tilted down to one side or deformed to the upside, the groove 9 performs slide motion as its upward motion is checked by the guide body 4. |
