| 摘要 |
In a belt tightener 22 for an endless drive belt 21, which belt tightener is of the type which comprises a) a support member 36 which is adapted so as to be stationary in relation to the drive belt 21, b) a belt engagement member 38 which is supported by the support member 36 and can be moved in relation to it, c) mechanical spring members 39 which are operationally connected to the support member 36 and the belt engagement member 38 in such a manner that they act on the belt engagement member 38 in relation to the support member 36 and in relation to the drive belt 21 with a force, by means of which the latter is stretched or tightened, and d) fluid-damping members 40 which are operationally associated with the support member 36 and the belt engagement member 38 in such a manner that they damp the movement of the belt engagement member 38 in relation to the support member 36 at least in one direction of movement, the novelty is e) that the fluid-damping members 40 comprise a rotating damping member, f) that the rotating damping member 40 and the spring member 39 are in line with one another coaxially, g) that the support member 36, 41 is designed with a through-bore 42 for receiving a fastening member 43, by means of which the support member 36, 41 can be fastened to a mounting bracket 37 or the like, and h) that the through-bore 42 runs coaxially through the rotating damping member 40 and the spring member 39. In this way, the belt tightener can be fastened, for example to a support bracket 37 on a car engine, by means of a single fastening bolt 43. <IMAGE>
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