| 摘要 |
<p>A hand held power tool (10) for delivering a torque to a joint, which power tool (10) comprises a housing that houses a motor (11) arranged to drive an input shaft (13); an output shaft (12) arranged to provide a torque to the joint; and a planetary gear (14) connecting said input shaft (13) to said output shaft (12). A flywheel (16) is arranged to rotate freely with respect to the housing (15). A cam block (18) is loosely fitted inside the housing (15), which cam block (18) is rotatively connected to a part of the planetary gear (14) and connected to the housing (15) via a cam profile (19), wherein the interaction between said cam block (18) and said cam profile (19) will force the cam block (18) into contact with the flywheel (16) when the cam block (18) is rotated. Thus, any counterforces acting on the output shaft (12) will be provided to the flywheel (16) via the planetary gear (14), such that the operator will not need to provide any counterforces.</p> |
