Hand-Held Power Tool Device

• US 20150000943A1
• Filed: 06/25/2014
• Published: 01/01/2015
• Est. Priority Date: 06/28/2013
• Status: Active Grant

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Diem, Carsten, Tauber, Matthias, Keinath, Hagen Philipp
• Granted Patent: US 9,802,305 B2
• Time in Patent Office: Days
• US Class Current: 173/11
• CPC Class Codes: B25D 16/00 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 Class Codes: B25D 2216/0069 Locking means
• CPC Class Codes: B25D 2250/221 Sensors

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.

Claims

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; and

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,

wherein the impact detection unit and the blocking detection unit are formed at least partially as one-piece.

2. The hand-held power tool device according to claim 1, further comprising:

at least one sensor element configured to detect the linear acceleration and the angular acceleration.

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

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

5. The hand -held power tool device according to claim 2, wherein the at least one sensor element is configured to detect a spatial position of the impact tool unit.

6. The hand -held power tool device according to claim 5, 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.

9. 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; and

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,

wherein the impact detection unit and the blocking detection unit are formed at least partially as one-piece.

8. An impact detection unit of a hand-held power tool device including (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;

the at least one blocking parameter is an angular acceleration about the processing axis of the insertion tool; and

the impact detection unit and the blocking detection unit are formed at least partially as one-piece.