| 主权项 |
1. A power tool configured to actuate a tool being attachable to the power tool, comprising:
a driving mechanism which is adapted to actuate the tool, the driving mechanism configured with a rotational member including a rotational shaft; a driving mechanism chamber, the driving mechanism chamber defining an inner space which houses the driving mechanism; and a lubricant which is provided in the inner space of the driving mechanism chamber for lubricating the driving mechanism, wherein the rotational member includes a first opening, a second opening and a passage which connects the first opening and the second opening, thereby the passage communicates with the inner space of the driving mechanism chamber via the first opening and further communicates with an outer space of the driving mechanism chamber via the second opening, wherein at least a part of the passage is arranged inside the rotational shaft, wherein a part of the passage extends in a radial direction of the rotational member and connects to the first opening, wherein a part of the passage extends inside the rotational shaft in an axial direction of the rotational shaft and connects to the second opening, and wherein the second opening opens in an end face of the rotational shaft in the axial direction. |
