| 摘要 |
PROBLEM TO BE SOLVED: To provide a chain guide capable of reducing friction resistance occurring between a chain and a chain guide.SOLUTION: A chain guide 10 runs a chain 20 connected to a link plate 21 along a guide groove 11 for guidance. In the chain guide 10, the bottom surface of the guide groove 11 on which the chain 20 slides is formed into a corrugated shape of alternately continuing a semicircular projection part 12 and a recess part 13 having the same curvature. In the chain guide 10, a curvature radius R1 of the projection part 12 and recess part 13 is made smaller than a curvature radius R2 of a contact portion of the link plate 21 and projection part 12. |
