HANDHELD POWER TOOLS WITH KICKBACK DETECTION AND METHODS OF DETECTING A KICKBACK CONDITION OF A HANDHELD POWER TOOL

Abstract: handheld power tools with kickback detection and methods of detecting a kickback condition of a handheld power tool are disclosed herein. the methods move an implement of the handheld power tool within an implement motion plane and detect motion of the handheld power tool. the methods also include determining that the kickback condition exists based, at least in part, on the motion of the handheld power tool. in some embodiments, the handheld power tool is a circular saw that includes a user-actuated assembly. the user-actuated assembly includes a motion sensor, a controller, and a motor. the circular saw also includes a workpiece support and a pivot. the motion sensor is configured to detect acceleration along an acceleration detection axis that extends a threshold pivot axis-acceleration axis distance of at most 4 cm from a pivot axis of the pivot.

Inventor(s): Dominik Hilpert, Markus Schmid, Harald Ruhland, Stefan Staib, Christian Schock, Markus Wildermuth, Matthias Kübeler

CPC Classification: B23D59/001 (Accessories specially designed for sawing machines or sawing devices (lubricating or cooling machine tools in general ))

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