OPERATING METHOD FOR A POWER TOOL, ESPECIALLY A HAND-HELD POWER TOOL

• US 20110173819A1
• Filed: 03/17/2009
• Published: 07/21/2011
• Est. Priority Date: 05/15/2008
• Status: Abandoned Application

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Platzer, Joachim, Koeder, Thilo, Hoffmann, Ulli
• Application Number:
  US12/992,731
• Publication Number:
  US 20110173819A1
• Time in Patent Office: Days
• US Class Current: 30/376
• CPC Class Codes: B23D 59/002 for the position of the saw blade B27B5/36 and B27B9/02 take precedence
• CPC Class Codes: Y10T 83/141 With means to monitor and control operation [e.g., self-regulating means]

Abstract

The invention relates to an operating method for a power tool (1), whereby it is monitored whether the working tool (7) has reached a predetermined position of application relative to a workpiece and whether it has maintained said position of application over a minimum period (t) and the tool (1) is only released for the working operation once the minimum period has expired.

Claims

1. Operating method for a power tool, especially a hand-held power tool, wherein a working line is predetermined for a working tool on the workpiece side and wherein the overlapping position of a detection surface on the machine side with respect to the working line is monitored by sensors and the position of the working tool with respect to said working line is detected when the position of said working line lies within the detection surface wherein a predetermined minimum period for detecting the position of said working tool with respect to said working line is checked and the start release for the power tool takes place after the minimum period has elapsed.

2. The operating method according to claim 1, wherein the detected position of the working tool with respect to the working line is displayed.

3. The operating method according to claim 1, wherein the working tool is mechanically aligned to the working line in accordance with the detected position of said working tool with respect to said working line.

4. The operating method for a power tool, especially a power tool according to claim 1, wherein the working line is monitored by sensors for the perceptibility thereof, particularly for the presence of and/or the adherence to a minimum contrast value.

5. The operating method according to claim 1, wherein the position of the working line with respect to the detection surface is once again checked when the minimum period for the maintenance of the position of the working tool with respect to said working line is not met;

and if the position of said working line lies within the detection surface, a new recording of the minimum period takes place.

6. Power tool, especially a hand-held power tool, especially for carrying out the operating method according to claim 1, wherein the power tool has a sensor unit which is aligned to the detection surface, a signal processing unit for the values acquired by sensors and/or values predetermined by the operator being subordinated to said sensor unit.

7. Power tool according to claim 6, wherein the power tool is equipped with a working tool, which is displaceable in its working direction and is actuated via the signal processing unit.

8. Power tool according to claim 6 wherein the working tool is controlled via the signal processing unit in such a manner that it is aligned to the working line.

9. Power tool according to claim 6, wherein the power tool has at least a display area visible to the operator for the data delivered from the signal processing unit.

10. Power tool according to claim 6, wherein the power tool is configured as a jigsaw, especially as a hand-held jigsaw having a saw blade which is rotatable and mechanically aligned to the working line.