| 摘要 |
The invention relates to a powered reciprocating saw, in particular, to a pruning saw. To simplify use of the saw, a clamping mechanism is provided which holds an object in position while it is sawed. The clamping mechanism includes a clamping arm that is mounted at the front portion of the saw housing near the blade by a one way rotary clutch such that the arm can freely rotate in only one direction. During use, the saw vibrates due to its reciprocating parts. Since the clamping arm has a center of mass spaced apart from the axis of rotation provided by the one way rotary clutch, a progressive rotational movement of the clamping arm results which thereby automatically closes to clamp the object to be cut.
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