| 摘要 |
PROBLEM TO BE SOLVED: To simplify a rocking regulation means for regulating rocking of a rocking frame exceeding a predetermined range and provide a structure preventing accumulation of earth, in a crawler type running gear in which a crawler belt wound on a driving wheel, front and rear idlers and a tracker roller is circulated and traveled by supporting the front and rear idlers and tracker roller by the rocking frame rockingly supported by a frame support body fixed to a vehicle body via a rocking shaft to rotate and drive the driving wheel positioned above the tracker roller. SOLUTION: A rocking plate 57 arranged on the outer side in the right/left direction of the frame support body 8 and having a plate surface facing the right/left direction is rockably provided integrally with the rocking frame 9, and a rocking regulation opening 58 is formed on the rocking plate 57. A rocking regulation body 59 having an engagement part 63 inserted to inside of the rocking regulation opening 58 is fixed to the frame support body 8. Since edge parts 58a, 58b in the rocking direction of the rocking regulation opening 58 abut on the engagement part 63 during rocking of the rocking frame 9, rocking of the rocking frame 9 is regulated. COPYRIGHT: (C)2008,JPO&INPIT
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