Hand-held power tool device

Patent metadata

Field	Value
Publication number	US-9802305-B2
Application number	US-201414315084-A
Country	US
Kind code	B2
Filing date	Jun 25, 2014
Priority date	Jun 28, 2013
Publication date	Oct 31, 2017
Grant date	Oct 31, 2017

Abstract

A hand-held power tool device comprises an impact tool unit, an impact detection unit, and a blocking detection unit. The impact tool unit is configured to drive an insertion tool at least partially in at least one of a rotational fashion and a translatory fashion. The impact detection unit is configured to detect at least one impact parameter, such as linear acceleration running at least substantially parallel to a processing axis of the insertion tool. The blocking detection unit is configured to detect at least one blocking parameter, such as at least one an angular acceleration about the processing axis of the insertion tool. The impact detection unit and the blocking detection unit are formed at least partially as one-piece.

First claim

What is claimed is:

1. A hand-held power tool device, comprising:
an insertion tool;
an impact tool unit configured to drive the insertion tool at least partially in at least one of a rotational fashion and a translatory fashion;
an impact detection unit configured to detect at least one impact parameter, wherein the at least one impact parameter is a linear acceleration running at least substantially parallel to a processing axis of the insertion tool with respect to a housing of the hand-held power tool device;
a blocking detection unit configured to detect at least one blocking parameter, wherein the at least one blocking parameter is an angular acceleration about the processing axis of the insertion tool with respect to the housing of the hand-held power tool device; and
a sensor element configured to detect both the linear acceleration and the angular acceleration.

2. The hand-held power tool device according to claim 1 , wherein the sensor element is an acceleration sensor.

3. The hand-held power tool device according to claim 2 , wherein the sensor element is at a three-axis acceleration sensor.

4. The hand-held power tool device according to claim 1 , wherein the sensor element is configured to detect a spatial position of the impact tool unit.

5. The hand-held power tool device according to claim 4 , further comprising at least one of:
(i) at least one open-loop control unit configured to perform open-loop control of the impact tool unit at least partially as a function of the spatial position of the impact tool unit; and
(ii) at least one closed-loop control unit configured to perform closed-loop control of the impact tool unit at least partially as a function of the spatial position of the impact tool unit.

6. A blocking detection unit of a hand-held power tool device according to claim 1 .

7. A hand-held power tool, comprising:
at least one hand-held power tool device, including:
an insertion tool;
an impact tool unit configured to drive the insertion tool at least partially in at least one of a rotational fashion and a translatory fashion;
an impact detection unit configured to detect at least one impact parameter, wherein the at least one impact parameter is a linear acceleration running at least substantially parallel to a processing axis of the insertion tool with respect to a housing of the at least one hand-held power tool device;
a blocking detection unit configured to detect at least one blocking parameter, wherein the at least one blocking parameter is an angular acceleration about the processing axis of the insertion tool with respect to the housing of the at least one hand-held power tool device;
a sensor element configured to detect both the linear acceleration and the angular acceleration; and
a control unit that performs open-loop or closed-loop control of the impact tool unit as a function of the linear acceleration and the angular acceleration detected by the sensor element.

8. An impact detection unit of a hand-held power tool device comprising:
(i) an insertion tool, (ii) an impact tool unit configured to drive the insertion tool at least partially in at least one of a rotational fashion and a translatory fashion, and (iii) a blocking detection unit configured to detect at least one blocking parameter,
wherein:
the impact detection unit is configured to detect at least one impact parameter;
the at least one impact parameter is a linear acceleration running at least substantially parallel to a processing axis of the insertion tool with respect to a housing of the at least one hand-held power tool device;
the at least one blocking parameter is an angular acceleration about the processing axis of the insertion tool with respect to the housing of the at least one hand-held power tool device; and

wherein a sensor element is configured to detect both the linear acceleration and the angular acceleration.

Assignees

• Bosch Gmbh Robert

Inventors

• Diem Carsten
• Keinath Hagen Philipp
• Tauber Matthias

Classifications

• B25D2250/221

  Sensors · CPC title

• B25D2216/0069

  Locking means · CPC title

• B25D17/00 Primary

  Details of, or accessories for, portable power-driven percussive tools {(details or components, e.g. casings, bodies, of portable power-driven tools not particularly related to the operation performed B25F5/00)} · CPC title

• B25D16/00 Primary

  Portable percussive machines with superimposed rotation {, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit (combined percussion and rotary drilling adapted for earth drilling E21B6/00)} · CPC title