Machine tool system

Patent metadata

Field	Value
Publication number	US-9457489-B2
Application number	US-201214002747-A
Country	US
Kind code	B2
Filing date	Mar 2, 2012
Priority date	Mar 3, 2011
Publication date	Oct 4, 2016
Grant date	Oct 4, 2016

Abstract

A machine tool system comprises at least one machine tool separating device, which has at least one cutting strand and at least one guide unit for guiding the cutting strand, which together form a self-contained system, and at least one portable machine tool, which comprises a machine tool housing and at least one coupling device for coupling the machine tool separating device. The portable machine tool comprises at least one pad unit to be placed on a workpiece, wherein the pad unit and the machine tool housing are mounted such that they can be moved relative to each other.

First claim

The invention claimed is:

1. A machine-tool system comprising:
a machine-tool parting device including at least one cutting strand and a guide unit configured to guide the at least one cutting strand, the at least one cutting strand and the guide unit together defining a self-contained system; and
a portable machine tool including a machine-tool housing, at least one coupling device configured to couple to the machine-tool parting device, and a support unit having a support surface configured to be supported on a workpiece, the machine-tool parting device extending through a support surface plane of the support surface,
wherein the support unit and the machine-tool housing are mounted so as to be pivotable relative to one another so as to adjust a distance by which the machine-tool parting device extends beyond the support surface in a direction opposite the machine-tool housing,
wherein the support unit includes an arresting device configured to exert a clamping force on the guide unit in a mounted state of the machine-tool parting device so as to fix the machine-tool housing at a fixed angular position relative to the support unit, and
wherein the support unit includes at least one tool guide unit configured to align the machine-tool parting device relative to the support unit independently of an angular position of the machine-tool housing relative to the support unit such that a longitudinal axis of the machine-tool parting device remains at least substantially perpendicular to the support surface of the support unit at various angular positions of the machine-tool housing relative to the support unit.

2. The machine-tool system as claimed in claim 1 , wherein:
the support unit includes at least one bearing element configured to pivotably mount the support unit relative to the machine-tool housing, and
the bearing element is operatively connected to a first end region of the machine-tool housing and the coupling device is located at a second opposite end region of the machine-tool housing.

3. The machine-tool system as claimed in claim 1 , wherein the support unit includes at least one spring element configured to preload the support unit and the machine-tool housing relative to one another.

4. The machine-tool system as claimed in claim 1 , wherein the arresting device is arranged on a side of the support unit facing toward the machine-tool housing.

5. The machine-tool system as claimed in claim 1 , wherein the at least one coupling device is mounted pivotably relative to the machine-tool housing.

6. The machine-tool system as claimed in claim 1 , wherein the self-contained system of the at least one cutting strand and the guide unit is formed such that the at least one cutting strand and the guide unit are connected to one another at least substantially non-detachably.

7. The machine-tool system as claimed in claim 1 , wherein the machine-tool parting device includes a torque transmission element mounted at least partially in the guide unit, and the torque transmission element is configured to transmit torque from a drive unit of the portable machine tool to the at least one cutting strand.

8. The machine-tool system as claimed in claim 7 , wherein the torque transmission element defines a coupling recess configured to transmit torque from a drive unit of the portable machine tool to the at least one cutting strand.

9. The machine-tool system as claimed in claim 7 , wherein the at least one cutting strand includes a plurality of carrier elements, each of which includes a cutting element and a drive recess, and the torque transmission element is configured to engage the drive recess of each of the plurality of carrier elements in sequence to transmit the torque to the at least one cutting strand.

10. The machine-tool system as claimed in claim 1 , wherein the portable machine tool includes a drive unit defining a drive unit axis, and the drive unit axis is in a first plane that is parallel to a second plane defined by the guide unit.

11. The machine-tool system as claimed in claim 1 , wherein the support unit and the machine-tool housing are pivotable relative to one another about a pivot axis, which is spaced apart from the machine-tool parting device.

12. A portable machine tool for a machine-tool system having at least one machine-tool parting device including at least one cutting strand and at least one guide unit configured to guide the at least one cutting strand, the at least one cutting strand and the at least one guide unit together defining a self-contained system, the portable machine tool comprising:
a machine-tool housing;
a coupling device configured to couple to the machine-tool parting device; and
a support unit having a support surface configured to be supported on a workpiece, the machine-tool parting device extending through a support surface plane of the support surface,
wherein the support unit and the machine-tool housing are mounted pivotably relative to one another so as to adjust a distance by which the machine-tool parting device extends beyond the support surface in a direction opposite the machine-tool housing,
wherein the support unit includes an arresting device configured to exert a clamping force on the guide unit in a mounted state of the machine-tool parting device so as to fix the machine-tool housing at a fixed angular position relative to the support unit, and
wherein the support unit includes at least one tool guide unit configured to align the machine-tool parting device relative to the support unit independently of an angular position of the machine-tool housing relative to the support unit such that a longitudinal axis of the machine-tool parting device remains at least substantially perpendicular to the support surface of the support unit at various angular positions of the machine-tool housing relative to the support unit.

Assignees

• Fuchs Rudolf
• Bosch Gmbh Robert

Inventors

• Fuchs Rudolf

Classifications

• B27B17/0083 Primary

  Attachments for guiding or supporting chain saws during operation · CPC title

• B27B17/02

  Chain saws equipped with guide bar (B27B17/06 takes precedence) · CPC title

• B23D57/023

  hand-held or hand-operated · CPC title