Patent ID: 9261171
Filing Date: 2016-02-16
CPC Classification: F16H,Y10T

Claim Text:
1. A belt drive for a motor-driven tool, comprising: a work-side belt pulley; a tool-side belt pulley; a belt tensioned over the work-side belt pulley and the tool-side belt pulley; a cam, rigidly connected to a shaft, arranged in of the work-side belt pulley and the tool-side belt pulley, the cam having a circular shape defined by an outer circumferential surface and a guide that projects from the outer circumferential surface, wherein the guide is configured to guide the cam in the one of the work side belt pulley and the tool-side belt pulley, and whereby during a rotating movement of the shaft the one of the work-side belt pulley and the tool-side belt pulley is movable via the cam from an eccentric arrangement with regard to the shaft into a concentric arrangement by a translational and a rotational movement of the one of the work-side belt pulley and the tool-side belt pulley.