| 摘要 |
<p>A tensioner lever for a chain or belt power transmission comprises a resin shoe 10 having a shoe surface 10a on which the chain or belt slides, and a back surface 10b with a plunger-engaging portion 11 adjacent one end and a lever shaft bearing portion 12 adjacent the other end. A shape-retaining groove 13 extends longitudinally along the shoe 10 through the plunger-engaging portion 11 and the lever shaft bearing portion 12. A part of a strength-maintaining plate 20 is fitted in the shape-retaining groove 13 and a part of the strength-maintaining plate 20 is exposed. Simplification and weight reduction in the tensioner lever can be realized, and molding accuracy requirements are reduced. Assembly is simplified by pawls 11a, 12a formed in openings 22 in a side wall of the shoe 10, which cooperate with locking holes 23a, 23b in the strength-maintaining plate 20. The pawls 11a, 12a simplify disassembly for recycling and may be notched so that they can be broken away. A projection is provided on the plunger-engaging portion 11 of the shoe 10 for limiting lateral deviation of the lever relative to the tensioner plunger T1. <IMAGE></p> |
