US 2016/0184956 A1Published application

Machine tool with tool-accommodating device

AssigneeC. & E. Fein GmbH

InventorsOlaf KLABUNDE, Juergen BLICKLE, Walter THOMASCHEWSKI, Fabian BEK, Stefano DELFINI, Willi FELLMANN, Bruno LUESCHER, Milan BOZIC, Thomas MATHYS, Daniel GROLIMUND

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Abstract

The invention relates to a machine tool, in particular a hand held machine tool, which has a tool-accommodating device which can be moved, in particular in oscillating fashion, about a drive axis, in order to retain a tool device on the machine tool. The tool-accommodating device has at least one clamping device, at least one retaining device and at least one locking device. The retaining device can be moved from at least one first, open position into at least one second, closed position. It is also the case that the retaining device can be forced by a clamping force, by way of the clamping device, preferably in the closing direction from said first, open position in the direction of said second, closed position. The locking device can be moved between at least one first, locking position and at least one second, unlocking position. It is possible here for said locking device to block movement of the retaining device in at least one locking position. A force applied to the locking device directly or indirectly by the tool device moves said locking device from one of said locking positions into one of said unlocking positions. This allows the tool device to be inserted particularly quickly and straightforwardly into the machine tool

Claims39

Dependent claims

A machine tool, in particular hand guided machine tool, which has a driving device moving around a driving axis, and in particular oscillating around the driving axis,

wherein the tool receiving device is adapted to hold a tool device such on the machine tool that the driving axis and a tool axis of rotation are substantially coincident,
wherein the tool receiving device has at least one clamping device, at least one holding device and at least one locking device,
wherein the holding means can be moved from at least a first open position into at least a second closed position, wherein further a clamping force can be applied onto the holding device by the clamping device, preferably in the closing direction from this first open position toward the second closed position,
wherein the locking device can be moved between at least a first locking position and at least a second unlocking position, wherein the locking device is adapted to cooperate with the holding device, wherein a movement of the holding device can be blocked in at least one locking position by the locking device, and
wherein the locking device is designed such that the locking device can be moved from one of these locking positions into one of these unlocking position by a force, which has been applied on the locking device directly or indirectly by the tool device.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/909,247Filed 25 Jul 2014
Priority: DE 20 2013 006 901.51 Aug 2013
Published: 30 Jun 2016
Term ends: Not estimatedThe source records don’t support an estimate.

Classification15 codes

B23B 31/103
Characterised by the retaining or gripping devices or their immediate operating means: retention by pivotal elements, e.g. catches, pawls
B23B 31/18
Chucks with simultaneously-acting jaws, whether or not also individually adjustable: pivotally movable in planes containing the axis of the chuck
B24B 23/022
With rotating grinding tools; Accessories therefor: spindle-locking devices, e.g. for mounting or removing the tool
B24B 23/04
Portable grinding machines, e.g. hand-guided; Accessories therefor: with oscillating grinding tools; Accessories therefor