HANDHELD POWER TOOL DEVICE

• US 20110114345A1
• Filed: 11/17/2010
• Published: 05/19/2011
• Est. Priority Date: 11/17/2009
• Status: Active Grant

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: SCHLESAK, Gerd, Klee, Christoph, Lennartz, Juergen
• Granted Patent: US 9,144,875 B2
• Time in Patent Office: Days
• US Class Current: 173/1
• CPC Class Codes: B23Q 11/0092 actuating braking or stopping means
• CPC Class Codes: B23Q 17/22 for indicating or measuring existing or desired position of tool or work B23Q16/005 takes precedence
• CPC Class Codes: B25D 17/00 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 Class Codes: B25D 2250/221 Sensors
• CPC Class Codes: B25F 5/024 as part of an auxiliary handle

Abstract

The invention is based on a handheld power tool device, having at least one safety mechanism, which intervenes in an uncontrolled blocking situation, and which has a sensor unit. It is proposed that the sensor unit is provided for directly detecting at least one orientation parameter of a handheld power tool.

Claims

1. A handheld power tool device, having at least one safety mechanism which intervenes in an uncontrolled blocking situation and which has a sensor unit for directly detecting at least one orientation parameter.

2. The handheld power tool device as defined by claim 1, wherein the sensor unit, in at least one operating state, detects an orientation parameter of the Earth'"'"'s magnetic field.

3. The handheld power tool device as defined by claim 1, wherein the sensor is provided for detecting at least two different orientation parameters, which describe an orientation of a handheld power tool.

4. The handheld power tool device as defined by claim 2, wherein the sensor is provided for detecting at least two different orientation parameters, which describe an orientation of a handheld power tool.

5. The handheld power tool device as defined by claim 1, wherein the safety mechanism has a computation unit, which is provided for comparing at least two orientation parameters measured at staggered times.

6. The handheld power tool device as defined by claim 2, wherein the safety mechanism has a computation unit, which is provided for comparing at least two orientation parameters measured at staggered times.

7. The handheld power tool device as defined by claim 3, wherein the safety mechanism has a computation unit, which is provided for comparing at least two orientation parameters measured at staggered times.

8. The handheld power tool device as defined by claim 4, wherein the safety mechanism has a computation unit, which is provided for comparing at least two orientation parameters measured at staggered times.

9. The handheld power tool device as defined by claim 5, wherein the safety mechanism has a computation unit, which is provided for comparing a change in orientation with a shutoff threshold value.

10. The handheld power tool device as defined by claim 6, wherein the safety mechanism has a computation unit, which is provided for comparing a change in orientation with a shutoff threshold value.

11. The handheld power tool device as defined by claim 7, wherein the safety mechanism has a computation unit, which is provided for comparing a change in orientation with a shutoff threshold value.

12. The handheld power tool device as defined by claim 8, wherein the safety mechanism has a computation unit, which is provided for comparing a change in orientation with a shutoff threshold value.

13. The handheld power tool device as defined by claim 1, wherein the sensor unit is spaced apart from components which essentially influence a detection of the Earth'"'"'s magnetic field.

14. The handheld power tool device as defined by claim 12, wherein the sensor unit is spaced apart from components which essentially influence a detection of the Earth'"'"'s magnetic field.

15. The handheld power tool device as defined by claim 1, having an additional handle, in which the sensor unit is disposed.

16. The handheld power tool device as defined by claim 1, wherein the safety mechanism has a transmission device, which in at least one operating state transmits a sensor parameter in wireless fashion.

17. The handheld power tool device as defined by claim 1, wherein the safety mechanism has an energy receiving device, which is provided for receiving operating energy transmitted in wireless fashion.

18. The handheld power tool device as defined by claim 1, wherein the energy receiving device, in at least one operating state, receives energy output by a drive motor.

19. A handheld power tool having a handheld power tool device as defined by claim 1.

20. A method for operating a handheld power tool device, in which at least one safety mechanism intervenes in an uncontrolled blocking situation, in particular as defined by claim 1, comprising detecting an uncontrolled blocking situation, by means of a sensor unit of the safety mechanism which directly detects an orientation parameter.