| 摘要 |
A hand held power wrench including a housing (11) that houses a motor (12), an inertia body (13) that is driven by said motor, and an output shaft (14) for delivering a torque to joint and that extends outside of the housing. A first screw part (16) and a second screw part (17) are arranged and are mutually interconnected by means of a thread (18) that allows the first screw part (16) and the second screw part (17) to rotate with respect to each other between a first and a second end stop position, at which the first and second screw parts (16, 17) are locked from mutual rotation in a first direction and second direction, respectively. Hence, the output shaft (14) will rotate with the inertia body (13) in a first direction in the first end stop position, and the first and second screw parts (16, 17) will rotate with the inertia body (13) in the opposite direction in the second end stop position. |
