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US 10,882,176 B2Granted
Hand-held machine tool comprising a clamping collar
AssigneeRobert Bosch GmbH
InventorRudolf Fuchs
Life of this patent
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Abstract
The disclosure relates to a hand-held machine tool, comprising a housing and a drive unit, a gearbox unit which is provided to convert a rotary motion of the drive unit into an oscillating motion and has an output shaft, and a tool holder for fastening at least one tool, said tool holder being drivable in an oscillating manner via the output shaft the gearbox unit. According to the disclosure, the hand-held machine tool comprises a clamping collar, which extends in a circumferential direction at least partially around the output shaft.
Claims7
Accessory mounting device of a hand-held machine tool, comprising:
- a fastening unit including a cylindrical clamping ring having a circumference and defining a radial direction extending to and intersecting said circumference;
- and
- at least one accessory coupling unit integral with said clamping ring at the intersection of said radial direction and said circumference of said clamping ring and including a holding element for receiving an accessory therethrough in a direction perpendicular to the radial direction at the intersection of said radial direction and said circumference and a fastening element for fastening the accessory to said holding element,
- wherein the hand-held machine tool includes (i) a housing including a machining-side-facing end in a direction of principal extent of the housing, (ii) a drive unit, (iii) a gearbox unit disposed within said housing and configured to convert a rotary motion of the drive unit into an oscillating motion, the gearbox unit having an output shaft extending perpendicular to the direction of principal extent of the housing, (iv) a tool holder configured to fasten at least one insert tool, and further configured to be driven in an oscillating manner via the output shaft of the gearbox unit, and (v) a cylindrical clamping collar extending from said housing and configured to extend away from the machining-side-facing end and at least partially around the output shaft in a peripheral direction, the clamping collar defining a continuous circumferential groove,
- wherein the accessory mounting device is configured to be fastened by the fastening unit to the clamping collar of the hand-held machine tool,
- wherein the clamping ring is sized to be received entirely within said continuous circumferential groove, and
- wherein the holding element and the fastening element are configured to permit adjustment of the accessory in said direction perpendicular to the radial direction at the intersection of said radial direction and said circumference.
4 more elements
Dependencies are inferred from the claim text.