| 摘要 |
PROBLEM TO BE SOLVED: To reduce a level of noises during running. SOLUTION: A pair of inner link plates 11, 11 are alternately connected with a pair of outer link plates 12, 12 via a bush 13 for a roller 15 and a connection pin 14. A connection pitch P is set 1.7-1.9 times larger than inner width b. Impact sounds when the roller 15 collides with a tooth bottom of the sprocket are reduced, so as to greatly reduce the level of noises during running. COPYRIGHT: (C)2003,JPO
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