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US 10,583,544 B2Granted
Hand-held power tool device
AssigneeRobert Bosch GmbH
InventorTobias Herr
Life of this patent
Estimating the term…
Abstract
A hand-held power tool device is described which includes an output unit, a striker, and a rotary percussion receiver which is designed for establishing a transfer of rotary percussions between the striker and the output unit, at least during a rotary percussion operation. It is provided that the hand-held power tool device includes a rotary percussion switch-off device which is designed for interrupting the transfer of rotary percussions from the striker to the rotary percussion receiver, at least during a hammer percussion operation.
Claims10
A hand-held power tool device, comprising:
- an output unit including a hammer percussion surface;
- a striker including a hammer percussion surface and at least two rotary percussion surfaces;
- a rotary percussion receiver for establishing a transfer of a rotary percussion between the striker and the output unit at least during a rotary percussion mode of the hand-held power tool device, the rotary percussion receiver being connected in a rotationally fixed manner to the output unit and including at least two rotary percussion surfaces;
- a rotary percussion switch-off device for interrupting the transfer of the rotary percussion from the striker to the rotary percussion receiver, at least during a hammer percussion mode of the hand-held power tool device;
- and
- a percussion spring configured to accelerate the striker in a direction of the output unit during the hammer percussion mode,
- wherein, during the rotary percussion mode, the striker delivers, in the direction of the output unit, at least one rotary percussion pulse from the at least two rotary percussion surfaces to the at least two rotary percussion surfaces of the rotary percussion receiver in a rotary direction of the output unit during the rotary percussion mode, and delivers at least one hammer percussion pulse in an axial direction of the output unit,
- wherein, during the hammer percussion mode, the striker delivers at least one rotary percussion pulse from the hammer percussion surface to the hammer percussion surface of the output unit in an axial direction of the output unit,
- wherein the rotary percussion switch-off device supports the rotary percussion receiver in an axially displaceable manner such that during the hammer percussion mode (i) the rotary percussion receiver is arranged in an axial position in which the at least two rotary percussion surfaces of the rotary percussion receiver are situated out of range of the at least two rotary percussion surfaces of the striker, and (ii) the hammer percussion surface of the striker axially impacts the hammer percussion surface of the output unit.
6 more elements
A hand-held power tool device, comprising:
- an output unit;
- a striker;
- a rotary percussion receiver for establishing a transfer of a rotary percussion between the striker and the output unit at least during a rotary percussion operation;
- a rotary percussion switch-off device for interrupting the transfer of the rotary percussion from the striker to the rotary percussion receiver, at least during a hammer percussion operation;
- and
- a percussion spring configured to accelerate the striker in a direction of the output unit during the hammer percussion operation,
- wherein the striker delivers, in the direction of the output unit, at least one rotary percussion pulse in a rotary direction of the output unit during the rotary percussion operation, and delivers at least one hammer percussion pulse in an axial direction of the output unit during the hammer percussion operation,
- a striker catch device that, at least during the hammer percussion operation, secures the striker, at least temporarily, in a rotationally fixed manner.
5 more elements
A hand-held power tool device, comprising:
- an output unit;
- a striker;
- a rotary percussion receiver for establishing a transfer of a rotary percussion between the striker and the output unit at least during a rotary percussion operation;
- a rotary percussion switch-off device for interrupting the transfer of the rotary percussion from the striker to the rotary percussion receiver, at least during a hammer percussion operation;
- and
- a percussion spring configured to accelerate the striker in a direction of the output unit during the hammer percussion operation,
- wherein the striker delivers, in the direction of the output unit, at least one rotary percussion pulse in a rotary direction of the output unit during the rotary percussion operation, and delivers at least one hammer percussion pulse in an axial direction of the output unit during the hammer percussion operation,
- a chisel coupling for securing the output unit in a rotationally fixed manner in a chisel mode.
5 more elements
Dependencies are inferred from the claim text.