| 摘要 |
<p>A power tool of the type comprises a housing (10), a rotation motor (11), an output shaft (12) carrying and rotating a working implement, and a grease lubricated angle drive (13) coupling the output shaft (12) to the motor (11), wherein the angle drive (13) includes a gear chamber (30) containing lubricating grease, a pinion (16) connected to the motor (11), and a bevel gear (17) secured to the output shaft (12). A grease relocating element (33) is movably guided along a circular path formed by a groove (32) in an end wall (31) of the housing (10) beneath the bevel gear (17), and a coupling device (34) is attached to the bevel gear (17) and arranged to engage and move the grease relocating element (33) along the circular path in the housing (10) for relocating grease from an inactive deposition area in the groove (32) to an active lubricating area at rotation of the bevel gear (17). <IMAGE></p> |
