Robert Boschgmbh

Bruno Sinzig

Bruno Luescher

Andreas Zurbruegg

Marcus Schuller

Laurent Quebatte

Aldo Di Nicolantonio

Willi Fellmann

Christian Ackermann

Christian Bermes

Laurent Gribi

Robert Simm

Stefan Christen

Michael Laett

Sergio Miracco

David Winistoerfer

Andreas Arn

A quick clamping device for a portable power tool, in particular an angle grinder, includes an output shaft that is configured to be driven in rotation and at least one clamping unit that is configured to fix an application tool unit to the output shaft without tools. The clamping unit has at least one movably mounted clamping element configured to apply a clamping force to the application tool unit in a clamping position of the clamping element. The clamping element is formed by a positive-locking element that is movable transversely to an axis of rotation of the output shaft and is configured to engage behind at least a subregion of the application tool unit in a positive-locking manner so as to secure the application tool unit.

Quick clamping device for a portable power tool, in particular an angle grinder, having in particular at least one output shaft that is drivable in rotation

A power tool, in particular a hand-held power tool, includes a tool-holding device that rotates about an output axis. The tool-holding device is configured to hold a tool device on the power tool such that the output axis and a tool rotation axis substantially coincide. The tool-holding device has at least a driver device and a clamping device that is movable relative to the driver device. To transfer a driving force to the tool device, the driver device has at least one torque transfer region that is arranged at a distance from the output axis. The driver device and the clamping device are configured to reach through a cut-out of the tool device, which cut-out extends through the entire material thickness of the tool device, and to clamp the tool device via the clamping device, which is movable substantially in a direction radial to the output axis.

Power tool

A tool device for a hand-held power tool, which can be operated such that the tool device is rotated about an output shaft of a tool-holding device, has at least one connecting device, which is detachably connected to an output shaft of the power tool. The connecting device is fastened to the tool-holding device so that a drive axis of the output shaft and a tool axis of rotation substantially coincide. The connecting device has a cut-out and at least one clamping wing, which at least partly bounds the cut-out in the radial direction of the tool axis of rotation and which is bounded substantially in the direction radial to the tool axis of rotation by a first bounding edge, which lies on a first bounding circle around the tool axis of rotation. The clamping wing extends at least substantially along a plane orthogonal to the tool axis of rotation.

Tool device for a hand-held power tool

A grinding-means device, in particular a grinding-disc device or backup-pad device, for arranging at least one grinding means, in particular at least one grinding wheel, on a portable power tool, in particular a grinding machine, includes at least one receiving unit, in particular a grinding disc or backup pad, which is fixable in a thread-free manner on an output unit of the tool and on which at least one grinding means is arranged. The grinding-means device includes at least one securing unit formed separately from the receiving unit and configured to axially fix the receiving unit and/or the grinding means to the output unit of the tool in a tool-free manner, and/or at least to axially fix the grinding means to the receiving unit in a tool-free manner.

Grinding means device, in particular grinding-disc device or backup-pad device

A quick-clamping device for a portable machine tool, in particular for an angle grinder, includes at least one clamping unit and at least one control unit. The clamping unit includes at least one clamping element mounted movably with respect to a movement axis of the clamping unit so that the clamping unit is configured for tool-free fixing of an insertion tool unit to an output shaft of the portable machine tool. The control unit includes at least one movably mounted control element configured to actuate the clamping unit. The control element is mounted at least in a translatory and/or pivotable manner and is configured to transfer the clamping unit from a clamping position into a release position according to a movement of the control element.

Quick-clamping device for a portable machine tool

A quick tensioning device for a portable machine tool, in particular for an angle grinding machine, includes at least one output shaft which can be rotated, at least one clamping unit that is at least partly arranged in the output shaft and has at least one clamping element, which is movably mounted at least about and/or along a movement axis of the clamping unit, for fixing an insert tool unit to the output shaft without tools, and at least one torque transmission unit for transmitting a torque to the insert tool unit when the insert tool unit is arranged on the output shaft, said torque transmission unit having at least one torque transmission element which is formed separately from the output shaft. The quick tensioning device includes at least one securing unit at least for securing the torque transmission element to the output shaft in a rotationally fixed manner.

Quick tensioning device for a portable machine tool, in particular for an angle grinding machine

A cut-length indicating device for a portable power tool comprises at least one indicating unit including at least one movably mounted indicating element configured to indicate at least one position of a cut edge of a machining tool in dependence on a set cut depth of the machining tool, and at least one position setting unit configured to move the indicating element into a position that is dependent on a cut-depth setting of the machining tool. The cut-length indicating device further comprises at least one adjusting unit configured to adapt at least one maximum setting movement distance of the indicating element to at least one machining-tool parameter of the machining tool.

Cut-length indicating device

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.

Cut length indicating device

A cutting-depth limiting device for portable power tools includes at least one cutting-depth guide unit and at least one stop unit. The stop unit has at least one movably mounted stop element, and at least one fixing element configured to fix the stop element in at least one position. The stop unit further has at least one pre-positioning element which is configured to exert a force on the fixing element in a direction of a releasing position of the fixing element.

Cutting-depth limiting device

A device for limiting the depth of a cut, which is to be used in portable machine tools, includes at least one cut-depth guide unit, and at least one stop unit that has at least one stop element. The stop element has, for the purpose of limiting the depth of a cut, a movement potential relative to the cut-depth guide unit along a cut-depth guide track of the cut-depth guide unit. The cut-depth limiting device further includes at least one stop movement unit which is configured to allow the stop element a further movement potential relative to the cut-depth guide unit, at least one of along and about an axis of movement, at least when in a state of operation.

Device for limiting the depth of a cut

The invention relates to an electric tool, in particular a hand-held electric tool, having a housing, which has a rear housing part and at least one front housing part arranged in front of the rear housing part in the longitudinal direction of the electric tool, and an electric drive motor having an armature shaft that extends in the longitudinal direction of the electric tool. The armature shaft is rotatably mounted together with a rear bearing arranged at the rear housing part. According to the invention, the rear bearing is designed as a fixed bearing.

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Oberbipp, Switzerland

Bruno Sinzig