| 摘要 |
PROBLEM TO BE SOLVED: To prevent the spring receiving member of the compression spring of a tension device applying tension to the crawler travel body of a crawler travel device from being bent and deformed by the mud intruding between the spring receiving member and a support wall backing up it. SOLUTION: The spring receiving member 59 receiving the back face of the compression spring 61 is formed with a spring reception part 59A receiving the pressing force of the compression spring and a plurality of leg parts 62A, 62B, 62C, 62D stretched from its periphery to position the spring receiving member 59. Notches 70 are formed between the legs 62A, 62B, 62C, 62D.
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