| 摘要 |
Screwdriver with changeable operation modes, including: a handle having a slide way formed in the handle and passing through a front end of the handle; a stem, a rear end of which is slidably fitted in the slide way without detaching from the handle; a clutch mechanism connected between the stem and the handle, in normal state, the clutch mechanism being in a non-transmission state, whereby the stem can freely rotate within the handle; and a rotary member connected with the stem for a user's hand to rotate. When the screwdriver is used to screw a screw in a loosened state, the user can turn the rotary member to rotate the stem. In the case that the screw is in a tightened state, the handle is pressed to move the stem inward, the clutch mechanism is in a transmission state and the user can turn the handle to drive the stem.
|
