| 摘要 |
<p>The power tool 100, such as a hand-held power drill, includes a handle portion and a housing 2. A chuck 3 is disposed in front of the housing and the chuck is selectively operated in one of a working mode and a chucking mode. The power tool further includes a driving device 4 which can drive the chuck to move axially between first position and a second position. The tool is in the working mode when the chuck is in the first position and is in the chucking mode when the chuck is in the second position. The driving device may include a handling member 5, an actuating member 7, a first lever 61 and a second lever 62. The first lever may be driven by the second lever to rotate about a fulcrum 9. The driving device may also include an elastic restoring element such as a spring 11.</p> |
