Power Tool

摘要

Embodiments of the present invention may include a power tool (1) having a driving motor (10), a spindle (40) with a front tool (41) and a continuously variable transmission mechanism (30). The driving motor (10) is configured to output any number of output rotations. The continuously variable transmission mechanism (30) is configured to shift the number of rotations from the driving motor (10) in any ratio and output the shifted rotation to the spindle (40). The driving motor (10) changes the number of output rotations. The continuously variable transmission mechanism (30) changes the ratio. Both the driving motor (10) and the continuously variable transmission mechanism (30) serve to alter the rotational speed of the spindle (40).