IP Library Granted Patent US 9,744,684
Granted Patent B2
US 9,744,684 · App. 14/002,653 · Granted Aug 29, 2017

Machine tool separating device

Inventor: Rudolf Fuchs (Neuhausen, DE)
Assignee: Robert Bosch GmbH
B27B17/02B23D57/023B27B33/14
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Quick Facts
Patent No.
US 9,744,684
App. No.
14/002,653
Granted
Aug 29, 2017
Kind
B2
Abstract

A machine tool separating device, in particular a handheld machine separating device, includes at least one cutting strand and at least one guide unit. The cutting strand, viewed along a direction running at least substantially perpendicular to a cutting plane of the cutting strand, has a maximum dimension less than 4 mm.

Claims (38)

1. A machine tool separating device, comprising:

at least one cutting strand; and

at least one guide unit configured to guide the at least one cutting strand,

wherein the cutting strand, as seen along a direction running at least substantially perpendicular to a cutting plane of the cutting strand, has a maximum dimension smaller than 4 mm, and

wherein the cutting strand has at least one cutting element which, in a mounted state, extends at least substantially along the direction running at least substantially perpendicular to the cutting plane of the cutting strand less than 0.2 mm beyond at least one outer surface of the guide unit.

2. The machine tool separating device as claimed in claim 1 , wherein the cutting strand and the guide unit are configured as a closed system such that the cutting strand and the guide unit are connected in such a way that the cutting strand and the guide unit can only be separated from each other with the assistance of separating tools.

3. The machine tool separating device as claimed in claim 1 , wherein the cutting strand, as seen along the direction running at least substantially perpendicular to the cutting plane of the cutting strand, has a maximum dimension between 1.3 mm and 2.2 mm.

4. The machine tool separating device as claimed in claim 1 , wherein the guide unit has together with the cutting strand, as seen along a direction running at least substantially parallel to the cutting plane of the cutting strand and at least substantially perpendicular to a main extension direction of the guide unit, a maximum dimension which is smaller than 50 mm.

5. The machine tool separating device as claimed in claim 1 , wherein the cutting element ends at least substantially flush with at least one outer surface of the guide unit in a mounted state along the direction running at least substantially perpendicular to the cutting plane of the cutting strand.

6. A machine tool separating device, comprising:

at least one cutting strand; and

at least one guide unit configured to guide the at least one cutting strand,

wherein the cutting strand, as seen along a direction running at least substantially perpendicular to a cutting plane of the cutting strand, has a maximum dimension smaller than 4 mm, and

wherein the cutting strand has at least three blade carrier elements which are connected to one another in an articulated manner by at least two connecting elements of the cutting strand, the connecting elements having a relative distance to one another along a cutting direction of the cutting strand which is smaller than 5 mm with respect to central axes of the connecting elements.

7. A machine tool separating device, comprising:

at least one cutting strand; and

at least one guide unit configured to guide the at least one cutting strand,

wherein the cutting strand, as seen along a direction running at least substantially perpendicular to a cutting plane of the cutting strand, has a maximum dimension smaller than 4 mm, and

wherein a total mass of the device is less than 500 g.

8. A portable machine tool, comprising:

a machine tool separating device; and

a coupling device configured to lockingly couple to the machine tool separating device, the machine tool separating device including:

at least one cutting strand; and

at least one guide unit configured to guide the at least one cutting strand,

wherein the cutting strand, as seen along a direction running at least substantially perpendicular to a cutting plane of the cutting strand, has a maximum dimension smaller than 4 mm, and

wherein the cutting strand has at least three blade carrier elements which are connected to one another in an articulated manner by at least two connecting elements of the cutting strand, the connecting elements having a relative distance to one another along a cutting direction of the cutting strand which is smaller than 5 mm with respect to central axes of the connecting elements.

9. The portable machine tool as claimed in claim 8 , further comprising at least one drive unit configured to drive the cutting strand in at least one operating state with a cutting speed of less than 6 m/s.

10. The machine tool separating device as claimed in claim 1 , wherein the machine tool separating device is configured as a manual machine tool separating device.

11. The machine tool separating device as claimed in claim 6 , wherein the cutting strand and the guide unit are configured as a closed system such that the cutting strand and the guide unit are connected in such a way that the cutting strand and the guide unit can only be separated from each other with the assistance of separating tools.

12. The machine tool separating device as claimed in claim 6 , wherein the cutting strand, as seen along the direction running at least substantially perpendicular to the cutting plane of the cutting strand, has a maximum dimension between 1.3 mm and 2.2 mm.

13. The machine tool separating device as claimed in claim 6 , wherein the guide unit has together with the cutting strand, as seen along a direction running at least substantially parallel to the cutting plane of the cutting strand and at least substantially perpendicular to a main extension direction of the guide unit, a maximum dimension which is smaller than 50 mm.

14. The machine tool separating device as claimed in claim 6 , wherein the machine tool separating device is configured as a manual machine tool separating device.

15. The machine tool separating device as claimed in claim 7 , wherein the cutting strand and the guide unit are configured as a closed system such that the cutting strand and the guide unit are connected in such a way that the cutting strand and the guide unit can only be separated from each other with the assistance of separating tools.

16. The machine tool separating device as claimed in claim 7 , wherein the cutting strand, as seen along the direction running at least substantially perpendicular to the cutting plane of the cutting strand, has a maximum dimension between 1.3 mm and 2.2 mm.

17. The machine tool separating device as claimed in claim 7 , wherein the guide unit has together with the cutting strand, as seen along a direction running at least substantially parallel to the cutting plane of the cutting strand and at least substantially perpendicular to a main extension direction of the guide unit, a maximum dimension which is smaller than 50 mm.

18. The portable machine tool as claimed in claim 8 , wherein the cutting strand and the guide unit are configured as a closed system such that the cutting strand and the guide unit are connected in such a way that the cutting strand and the guide unit can only be separated from each other with the assistance of separating tools.

19. The portable machine tool as claimed in claim 8 , wherein the cutting strand, as seen along the direction running at least substantially perpendicular to the cutting plane of the cutting strand, has a maximum dimension between 1.3 mm and 2.2 mm.

20. The portable machine tool as claimed in claim 8 , wherein the guide unit has together with the cutting strand, as seen along a direction running at least substantially parallel to the cutting plane of the cutting strand and at least substantially perpendicular to a main extension direction of the guide unit, a maximum dimension which is smaller than 50 mm.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 14, 2013
From: FUCHS, RUDOLF
To: ROBERT BOSCH GMBH
Reel/Frame 031603/0730 →
Priority Claims (1)
DE 10 2011 005 008 · Mar 3, 2011 · national
Continuity (1)
Related Publication 20140123504A1 · May 8, 2014