Machine Tool, Especially Hand-Held Machine Tool

• US 20130019735A1
• Filed: 10/22/2010
• Published: 01/24/2013
• Est. Priority Date: 12/16/2009
• Status: Abandoned Application

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Platzer, Joachim, Koegel, Jan, Koeder, Thilo
• Application Number:
  US13/515,743
• Publication Number:
  US 20130019735A1
• Time in Patent Office: Days
• US Class Current: 83/697
• CPC Class Codes: B23D 59/001 Measuring or control devices, e.g. for automatic control of work feed pressure on band saw blade measuring in general G01; controlling in general G05
• CPC Class Codes: B23Q 17/24 using optics or electromagnetic waves
• CPC Class Codes: B23Q 17/2404 Arrangements for improving direct observation of the working space, e.g. using mirrors or lamps structural combinations of lighting devices with other articles, not otherwise provided for, F21V33/00
• CPC Class Codes: Y10T 83/9454 Reciprocable type

Abstract

A hand-held machine tool such as a jigsaw includes a distance measuring unit for the contactless detection of a section of a specified path and for visualizing a working path corresponding to the specified path and/or for aligning the machine tool including its working tool with the working path corresponding to the shape of the specified path by means of an adjusting device.

Claims

1. A power tool, comprising:

a work tool; and

an auxiliary device configured to guide the work tool of the power tool along a work path to be followed on the workpiece side in a manner oriented with respect to a specified path that extends in a laterally offset manner with respect to the power tool,

wherein the auxiliary device has a distance measuring unit for contactlessly sensing a course section of the specified path and the distance of the work tool from the specified path in the course section and also a display device for the work path to be followed by the work tool at a specified distance from the specified path.

3. The power tool as claimed in claim 1, wherein the distance measuring unit is formed as a measuring unit that operates with an optical mechanism.

4. The power tool as claimed in claim 1, wherein the distance measuring unit is in the form of a measuring unit that operates with an acoustic mechanism.

5. The power tool as claimed in claim 1, wherein the distance measuring unit is fixed to the housing of the power tool by way of its sensing arrangement.

7. The power tool as claimed in claim 1, further comprising a computing unit, wherein the course of the work path corresponding to the specified path is determined via the computing unit and visualized via the display device.

8. The power tool as claimed in claim 3, wherein the optical mechanism includes a sensor system.

9. The power tool as claimed in claim 8, wherein the sensor system includes a camera.

10. The power tool as claimed in claim 4, wherein the distance measuring unit is in the form of a measuring unit that operates on the basis of ultrasound.

11. The power tool as claimed in claim 5, wherein the distance measuring unit is adjustably fixed to the housing.

2. A power tool, comprising:

a work tool; and

an auxiliary device configured to align the work tool of the power tool with a work path to be followed on the workpiece side in a manner oriented with respect to a specified path that extends in a laterally offset manner with respect to the power tool,

wherein the auxiliary device has a distance measuring unit for contactlessly sensing a course section of the specified path and the distance of the work tool from the specified path in the course section, and also an actuating device for aligning the work tool with the work path and/or for guiding the work tool along the work path, which extends at a specified distance from the specified path on the workpiece side.

6. The power tool as claimed in claim 2, wherein the power tool is in the form of a jigsaw having a saw blade which is aligned with the work path via the actuating device about a rotational axis that extends in its longitudinal direction.

12. The power tool as claimed in claim 6, wherein the jigsaw is a semi-autonomously operating jigsaw.