| 摘要 |
PROBLEM TO BE SOLVED: To provide a chain which exhibits excellent corrosion resistance and wear resistance and achieves weight reduction. SOLUTION: A link plate 15 forming a chain 1 is provided with offset plates 21a, 21b, 21c and 21d, wherein a bush 33 is fitted to the offset plates 21a, 21b. The bush 33 is made of a synthetic resin, and has notches 35a, 35b for preventing the bush from being rotated alone when fitted to the offset plates. Since the material constituting the bush 33 is synthetic resin, corrosion caused by a potential difference between the bush and the other member can be prevented, thereby improving the corrosion resistance of the chain 1. COPYRIGHT: (C)2007,JPO&INPIT
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