Auxiliary device for a hand-held power tool
AssigneeRobert Bosch GmbH
InventorsWolfgang Adamczak, Marco Braun, Zaidi Ahmad Mohd, James B. Stevens
Life of this patent
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Abstract
The invention relates to an auxiliary device for a portable tool, comprising a receptacle (2) for a motor-operated portable tool (22) having an output shaft (26), and comprising a drive train (9) which has a tool receptacle (8), to be opened and closed by rotation, and which can be connected to the output shaft (26) of the motor-operated portable tool (22) via a coupling device. Provision is made for the auxiliary device (1) for the portable tool to have an anti-rotation locking means (13) acting on the drive train (9).
Claims14
An auxiliary device for a hand-held power tool, the auxiliary device including a fitting for releasable holding a motor-operated, hand-held power tool having a drive shaft, the auxiliary device also including a drive train which includes a tool fitting, which tool fitting is rotated to be opened or closed, and which drive train includes a rotatable shaft (7) that is parallel to the drive shaft and that can be rotationally connected to the drive shaft of the motor-operated, hand-held power tool via a coupling device, the auxiliary device further comprising an anti-rotation locking device (13), which acts on the drive train (9), wherein the anti-rotation locking device (13) includes a non-rotatable locking element (35), wherein the rotatable shaft (7) includes a polygonal portion which interacts with the non-rotatable locking element (35) to rotationally lock the drive train (9) when the non-rotatable locking element (35) is moved in the direction of the rotational axis of the rotatable shaft (7).
Dependencies are inferred from the claim text.