| 摘要 |
A power tool having an impact mechanism including a rotary shaft (18) defining a tool axis of rotation (32), an impact member (16) moveable along said axis of rotation (32), a support member (44) fixed in position relative to said tool axis of rotation, a biasing member (22) for urging the impact member (16) away from said support member (44), and at least one axial stop member (34) positioned between the impact member (16) and the support member (44), wherein the distance (64) between the axial stop member (34) and the tool axis of rotation (32) is more than the distance (62) between the biasing member (22) and the tool axis of rotation (32).
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