| 摘要 |
Subject: To enable the simultaneous achievement of the enhancement of an oscillation absorption function of a tensioner arm for a transmission chain and the enhancement of wear resistance in a chain tensioner. <??>Solving Means: A tensioner arm (16) is composed of an elastic band tensioner arm body (22) curved toward a transmission chain (14) and a flexible tensioner shoe (23) which covers the front of the tensioner arm body (22) and which is provided with a chain guide groove (23b) to the front of which the transmission chain (14)is slidably fitted and, and the width of the middle in the longitudinal direction of the tensioner arm body(22)is set so that the width is smaller than the width of each end of the arm body 22. <IMAGE> |
