Tool attachment
AssigneeRobert Bosch GmbH
InventorsDietmar SAUR, Michael-Andreas GRUNWALD
Life of this patent
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Abstract
A tool attachment for mounting on a hand-held machine tool provided with a tool holder, the tool attachment having an output shaft and a base body at whose outer circumference a locking sleeve is disposed in a manner allowing it to rotate to release at least one assigned locking element; at the outer circumference of the base body, an anti-rotation unit is formed for the twist-proof mounting of the base body on a fastening unit assigned to the hand-held machine tool; on the anti-rotation unit and at an inner circumference of the fastening unit, complementary geometrical forms are provided which are configured to mesh with each other for the releasable, twist-proof mounting of the base body on the fastening unit.
Claims11
A tool attachment for mounting on a hand-held machine tool, provided with a tool holder, comprising:
- an output shaft;
- a base body, wherein a locking sleeve is disposed at an outer circumference of the base body, so as to allow it to rotate to release at least one assigned locking element;
- and
- an anti-rotation unit, formed at the outer circumference of the base body, for providing a twist-proof mounting of the base body on a fastening unit assigned to the hand-held machine tool, wherein there are complementary geometrical forms on the anti-rotation unit and at an inner circumference of the fastening unit, and wherein the forms are configured to mesh with each other for the releasable, twist-proof mounting of the base body on the fastening unit.
A hand-held machine tool, comprising:
- a tool holder;
- a housing, on which a tool attachment having an output shaft and a base body is mountable, a locking sleeve being disposed in a manner allowing it to rotate so as to release at least one assigned locking element being provided at an outer circumference of the base body;
- and
- a fastening unit for providing a twist-proof mounting of an anti-rotation unit provided at the outer circumference of the base body, wherein complementary geometrical forms are provided at an inner circumference of the fastening unit and on the anti-rotation unit, and wherein the forms are configured to mesh with each other for the releasable, twist-proof mounting of the base body on the fastening unit.
A tool system, comprising:
- a hand-held machine tool;
- and
- a tool attachment;
- wherein the hand-held machine tool includes a tool holder and a housing, on which a base body of the tool attachment is provided with an output shaft is mountable, wherein a locking sleeve is disposed so as to allow it to rotate so as to release at least one assigned locking element provided at an outer circumference of the base body, wherein a fastening unit for providing a twist-proof mounting of an anti-rotation unit is provided at the outer circumference of the base body is provided on the housing, complementary geometrical forms being provided at an inner circumference of the fastening unit and on the anti-rotation unit, and wherein the forms are configured to mesh with each other for the releasable, twist-proof mounting of the base body on the fastening unit.
Dependencies are inferred from the claim text.