| 摘要 |
A portable power tool comprising a rotation motor (11), an output shaft (14), a gearing (13) and a drive spindle (12;112) connecting the gearing (13) to the motor (11), wherein a drive line arresting lock device (17;117) is provided to facilitate loosening and/or tightening of a working implement mounting device (15), and a releasable safety clutch (23;123) is provided between the lock device (17;117) and the gearing {13) for protecting the gearing - (13) against transmission of detrimental excessive torque magnitudes manually applied on the output shaft/mounting device (14,15).
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