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US 9,962,807 B2Granted
Angle grinder comprising a yaw rate sensor for measuring the housing rotation
AssigneeRobert Bosch GmbH
InventorsChristoph Klee, Hans-Joerg Faisst
Life of this patent
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Abstract
An angle grinder includes a housing, a drive unit configured to drive a usage tool, a sensor device configured to provide a rotation parameter, and a control unit configured to evaluate the rotation parameter to detect a clamped state of the usage tool. The sensor device has a yaw rate sensor configured to provide the rotation parameter in accordance with a rotational movement of the housing. The control unit triggers a safety mode in accordance with the rotation parameter or throttles the rotational speed and/or torque of the drive unit.
Claims9
An angle grinder, comprising:
- a drive unit configured to drive an insertion tool;
- an angle grinder housing in which the drive unit is arranged;
- a sensor device arranged in the angle grinder housing and including a yaw rate sensor configured to detect a yaw rate of the angle grinder housing and provide a rotation parameter as a function of the detected yaw rate;
- and
- a control and/or regulating unit configured to evaluate the rotation parameter and to detect a jammed state of the insertion tool based on the rotation parameter.
2 more elements
Dependencies are inferred from the claim text.