Cut length indicating device

Patent metadata

Field	Value
Publication number	US-9925684-B2
Application number	US-201314412025-A
Country	US
Kind code	B2
Filing date	Jun 14, 2013
Priority date	Jul 4, 2012
Publication date	Mar 27, 2018
Grant date	Mar 27, 2018

Abstract

A cut length indicating device for a portable machine tool includes at least one indication unit. The indication unit has at least one movably mounted indication element that is configured to indicate at least one position of a cutting edge of a machining tool on a work piece to be machined with reference to a set cutting depth of the machining tool. The indication element further has a cutting edge indication line, which runs at least substantially transversely to a movement plane of the indication element in order to indicate the position of the cutting edge in at least one operating state.

First claim

The invention claimed is:

1. A cut length indicating device for a portable machine tool, comprising:
at least one indicating unit including a first movably mounted indicating element configured to indicate a position of a first cutting edge of a cutting tool on a workpiece to be machined based on a set depth of cut of the cutting tool, the first movably mounted indicating element having a first cutting edge indicating line extending transversely with respect to a plane of movement of the first movably mounted indicating element relative to the portable machine tool, the first cutting edge indicating line aligned with the position of the first cutting edge at the set depth of cut,
wherein the at least one indicating unit further includes a second movably mounted indicating element configured for movement relative to the portable machine tool and to the first movably mounted indicating element, the second movably mounted indicating element having a second cutting edge indicating line extending transversely with respect to a plane of movement of the second movably mounted indicating element relative to the portable machine tool, and the second movably mounted indicating element aligned with a position of a second cutting edge of the cutting tool at the set depth of cut, and
wherein the first movably mounted indicating element and the second movably mounted indicating element are configured (i) to move away from each other when the set depth of cut is increased, and (ii) to move towards each other when the set depth of cut is decreased.

2. The cut length indicating device as claimed in claim 1 , further comprising:
at least one movement coupling unit which connects the first movably mounted indicating element and the second movably mounted indicating element to each other in a motionally dependent manner.

3. The cut length indicating device as claimed in claim 1 , further comprising:
at least one movement coupling unit which has:
a guide element, wherein the first movably mounted indicating element is positioned on the guide element; and
at least one movement coupling element which is connected in an articulated manner to the guide element.

4. The cut length indicating device as claimed in claim 3 , wherein the at least one movement coupling unit further has at least one guide recess configured to guide one end of the guide element which faces away from the at least one movement coupling element.

5. The cut length indicating device as claimed in claim 1 , further comprising:
at least one movement coupling unit which includes at least one guide recess which has a curved profile.

6. The cut length indicating device as claimed in claim 1 , wherein the at least one indicating unit further includes a laser indicating unit configured to emit the first cutting edge indicating line onto the workpiece and to emit the second cutting edge indicating line onto the workpiece.

Assignees

• Bosch Gmbh Robert

Inventors

• Sinzig Bruno
• Bermes Christian
• Arn Andreas

Classifications

• 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

• B23Q17/22

  for indicating or measuring existing or desired position of tool or work {(B23Q16/005 takes precedence)} · CPC title

• G01B5/02

  for measuring length, width or thickness (G01B5/004, G01B5/08 take precedence) · CPC title

• B27B9/02 Primary

  Arrangements for adjusting the cutting depth or the amount of tilting · CPC title