| 摘要 |
Device for protecting the chain of a chain saw (10) comprising a drive unit (12) and a chain guide (14) equipped with a first arm (26) and a second arm (28) which can rotate about one of their ends with respect to the drive unit, respectively upwards and downwards, as well as means for returning these two arms to a stable position on either side of the chain, characterised in that the return means comprise means for braking the return movement of the arms (26, 28). <IMAGE>
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