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US 2010/0248599 A1Published application
Guard for an electric machine tool, electric machine tool, and system comprising a guard and electric machine tool
AssigneeRobert Bosch GmbH
InventorsMike Voigt, Albert Kleider, Kurt Neef
Life of this patent
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Abstract
A guard for a power tool with a rotatably driven insertion tool (14) is configured to cover at least portions of the insertion tool (14). At least one blocking means (32, 40) prevents the insertion tool (14) from turning around an axis of rotation (18).
Claims23
A system composed of a guard and a power tool, comprising:
- a rotation-prevention means, wherein said rotation-prevention means has at least one blocking lug;
- at least one stop provided on a housing of said power tool, wherein said at least one blocking lug extends outwardly from a surface of said guard such that said at least one blocking lug contacts said at least one stop on said housing;
- an attachment means for clamping the guard to the power tool,
- wherein said at least one stop limits rotation of the guard in the event of shattering of an insertion tool in an operation mode of the power tool.
1 more element
A power tool, comprising:
- an electric motor located in a housing;
- an insertion tool rotatably driven by the electric motor;
- a rotation-prevention means configured to prevent the insertion tool from being released in a direction of an operator, wherein said rotation-prevention means has at least one blocking lug;
- at least one stop provided on said housing, wherein said at least one blocking lug extends outwardly from a surface of said guard such that said at least one blocking lug contacts said at least one stop on said housing;
- and
- an attachment means for clamping the guard to the power tool,
- wherein said at least one stop limits rotation of the guard in the event of shattering of an insertion tool in an operation mode of the power tool.
4 more elements
A system composed of a guard and a power tool, comprising:
- a rotation-prevention means provided with at least one blocking lug on a guard side and with at least one corresponding stop on a power tool side, wherein said at least one blocking lug extends outwardly from a surface of said guard such that said at least one blocking lug contacts said at least one stop;
- an attachment means for clamping the guard to the power tool, wherein the guard is attached in a normal operation mode to a collar by a force closure and the guard is attached to the collar by a form closure in the event of shattering of the insertion tool.
Dependencies are inferred from the claim text.