Power tool with an indicator

Patent metadata

Field	Value
Publication number	US-9358698-B2
Application number	US-201113021790-A
Country	US
Kind code	B2
Filing date	Feb 7, 2011
Priority date	Feb 15, 2010
Publication date	Jun 7, 2016
Grant date	Jun 7, 2016

Abstract

A power tool is provided with an indicator with a light source for generating a marking. A holding device is secured on the power tool by positive fit. The indicator is releasably secured on the holding device, wherein the holding device is secured to a grip pipe. The holding device has a geometry that is matched to the geometry of the grip pipe such that the holding device is securable in only one position on the grip pipe.

First claim

What is claimed is:

1. A power tool comprising:
an indicator comprising a light source for generating a marking;
a holding device;
wherein said indicator is releasably secured on said holding device;
a grip pipe having a first section and a second section in a longitudinal direction of said grip pipe, wherein said grip pipe has a bend between said first and second sections in said longitudinal direction, said bend connecting said first and second sections;
wherein said holding device is secured by positive fit on said bend of said grip pipe;
wherein said holding device has a grip pipe receptacle having a shape matched to a shape of said bend of said grip pipe such that said holding device is securable in only one constructively predetermined position on said grip pipe.

2. A power tool comprising:
an indicator comprising a light source for generating a marking;
a holding device secured on the power tool by positive fit;
wherein said indicator is releasably secured on said holding device;
wherein said indicator has an adjusting device for adjusting said marking;
wherein said indicator comprises a line laser that generates said marking in a line shape;
wherein the power tool is a motor chainsaw with a guide bar and a gun sight, wherein said line-shaped marking is positioned in a plane that is perpendicular to a plane of said guidebar and perpendicular to a bottom side of said motor chainsaw, wherein said plane in which said line-shaped marking is positioned extends parallel to said gun sight;
wherein said line laser is adjustable such that a spacing of an end point of said marking to said plane of said guidebar within a plane of said bottom side of said motor chainsaw is adjustable from at least approximately 20 cm to approximately 110 CM.

3. The power tool according to claim 2 , comprising a grip pipe on which said holding device is secured by said positive fit.

4. The power tool according to claim 3 , wherein said grip pipe has a cross-section deviating from a circular shape and wherein said holding device has a grip pipe receptacle having a cross-section matched to said cross-section of said grip pipe.

5. The power tool according to claim 4 , wherein said grip pipe receptacle has an opening having a width corresponding approximately to a smallest diameter of said grip pipe.

6. A motor chainsaw comprising:
a guide bar;
a gun sight;
an indicator comprising a light source for generating a marking;
a holding device secured on the motor chainsaw by positive fit;
wherein said indicator is releasably secured on said holding device;
wherein said indicator has an adjusting device for adjusting said marking;
wherein said indicator comprises a line laser that generates said marking in a line shape;
wherein said line-shaped marking is positioned always in a plane that is perpendicular to a plane of said guidebar and perpendicular to a bottom side of said motor chainsaw, wherein said plane in which said line-shaped marking is positioned extends parallel to said gun sight;
wherein said line laser is supported to be rotatable about an axis of rotation, wherein said axis of rotation is parallel to said bottom side of said motor chainsaw so that upon adjustment of said line laser about said axis of rotation said line-shaped marking is moving in said plane.

7. The motor chainsaw according to claim 6 , wherein said plane in which said line-shaped marking is positioned has a spacing to said gun sight, said spacing being smaller than approximately 5 cm.

8. The motor chainsaw according to claim 6 , wherein said line laser has a laser diode, wherein said indicator has a housing in which said laser diode is rotatably supported for adjusting said line-shaped marking, and wherein an axis of rotation of said laser diode extends approximately parallel to a longitudinal center axis of said guidebar.

9. The motor chainsaw according to claim 8 , wherein said housing has a slot-shaped window through which said laser diode shines for generating said marking.

10. The motor chainsaw according to claim 8 , wherein said indicator has an adjusting device for said laser diode and wherein said laser diode is integrated into said adjusting device.

11. The motor chainsaw according to claim 6 , further comprising:
a grip pipe on which said holding device is secured by said positive fit;
wherein said holding device has a holding device geometry that is matched to a grip pipe geometry of said grip pipe such that said holding device is securable in only one predefined position on said grip pipe;
wherein said holding device has a pin as a part of said holding device geometry and said grip pipe has a recess as a part of said grip pipe geometry, wherein said recess is engaged by said pin of said holding device with said pin projecting into said grip pipe to provide said positive fit.

12. The motor chainsaw according to claim 11 , wherein said indicator is releasably secured on said holding device by a snap-on connection, wherein said snap-on connection has an actuating device for releasing said snap-on connection.

13. The motor chainsaw according to claim 11 , wherein said holding device has a guide onto which said indicator is pushed.

Assignees

• Karrar Carel
• Uhl Klaus-Martin
• Stihl Ag & Co Kg Andreas

Inventors

• Karrar Carel
• Uhl Klaus-Martin

Classifications

• B25F5/021

  with guiding devices (guiding devices for hand tools on stands or supports B25H1/0078) · CPC title

• Y10T83/855

  Relative to another element · CPC title

• B23D59/002

  for the position of the saw blade (mounting for swiveling or tilting a circular saw blade B27B5/36; portable power-driven circular saws with adjustment for cutting depth or amount of tilting B27B9/02) · CPC title

• B27B17/0025 Primary

  Length measuring devices incorporated in the chain saw · CPC title