Robert Boschgmbh

Tyrolit Schleigmitel Swarowski K.g.

Tyrolit Schleifmittelwerke Swarovski K.g.

Albrecht Hofmann

Thomas Schomisch

Harald Krondorfer

Markus Heckmann

Joachim Schadow

Juergen Wiker

Joerg Maute

Peter Stierle

Sinisa Andrasic

Johann Huber

Ernst Kraenzler

Christof Hoelzl

Kersten Heckmann, Legal Representative

Marcus Heckmann

Stefan Heess

Ralf Bocka

Mario Pauli

Meinhard Eule

Kirsten Heckmann, Legal Representative

Florian Esenwein

Hongqun Chen

The present invention is directed to an insertion tool () for a machine tool that has a hub () with at least one opening () for insertion of a fastening means (), via which the hub () is clampable on a driving flange () of the machine tool connected to a drive shaft, the opening () including a retaining region () and a releasing region (), the releasing region () including a stop () for limiting a release motion of the fastening means (). It is provided that the opening () adjacent to the stop () has a convex section ().

Insertion tool for a machine tool

The invention is based on a system with a tool-holding fixture, which fixture has a slaving device () by way of which an inserted tool () can be connected operatively to a drive shaft (), and with an inserted tool () which can be connected operatively to the slaving device () via at least one detent element () that is supported movably counter to a spring element (), which detent element snaps into place in an operating position of the inserted tool () and fixes the inserted tool () by positive engagement. It is proposed that the tool-holding fixture and the inserted tool () have at least two corresponding shaped elements (), adapted to one another, to facilitate installation of the inserted tool ().

System with a tool-holding fixture

A power tool, in particular a right-angle grinder, includes a motor and a gear, the motor and/or the gear embodied as a mountable function module. The gear is embodied as a mountable function module, with a gear input shaft supported in a gearbox, and the gear input shaft is fixed in the gearbox via at least one detent connection.

Power tool, in particular angle grinder

A portable power tool includes a motor housing () and a housing cover () that is attached to the motor housing (). The portable power tool includes insulation () adjacent to the motor housing () and the housing cover (), which are guided through a guide () in the direction toward the motor housing () and/or the housing cover ().

Hand-held power tool

The invention relates to a hand power tool (), having a housing (), an electric motor accommodated in the housing (), and a battery pack (), releasably locked to the housing (), for supplying the electric motor with electric current. At least one spring/damping element (), mounted between the battery pack () and the housing () of the hand power tool (), is provided, for damping vibration and -or eliminating a locking-dictated play between the battery pack () and the housing ().

Electrical hand power tool with battery pack

A power tool has a power supply unit that can be removed on a device side for supplying electrical power, at least one indirectly actuatable switch for switching a drive machine on and off, a decoupling device for decoupling the switch, and a switching unit that actuates the switch at least indirectly.

Power tool

A tool-holding device for an insert tool () equipped with an at least essentially disk-shaped hub (), in particular for a hand-guided angle grinder () or a hand-guided circular saw, having a drive device () that includes a leaf spring unit () and is able to clamp the insert tool () in the axial direction (). The leaf spring unit () has at least one freely extending spring piece () that extends at least partially in the circumference direction ().

Tool-holding device

An insertion tool () for an angle grinder () that has a hub () with at least a first fastening means for fastening the hub () to a driving device () of the angle grinder (). The first fastening means if located on a partial circle () with a radius () of between 12 mm and 25 mm.

Insertion tool for an angle grinder

A handheld power tool has a housing, a rotating cutting tool having a clamping neck structurally connected to the housing, a guard hood that covers the cutting tool and has a guard hood part and a slip-on ring for receiving the guard hood releasably and adjustably on the clamping neck, the slip-on ring being connected to the guard hood part and having detent means for axially securing the slip-on ring to the clamping neck, and additional torsion-prevention means configured as a stop flange provided on the guard hood, the flange being provided in addition to the slip-on ring and connected to the guard hood part so that, in an installed state the stop flange is in contact with a component of the power tool that is structurally connected to the housing.

Handheld power tool with a guard hood

A tool-handling device for an insert tool() equipped with an at least essentially disk-shaped hub (), in particular for a hand guided angle grinder () or a hand-guided circular saw, having a drive shaft () and a drive device () equipped with at least one locking element() that is supported so that it is able to move in relation to a spring element () in order to fix the insert tool () in a form-locked manner in the circumference direction (). The drive shaft () has at least one form-locking element () formed onto it in a non-cutting manner in order to connect it in a form-locked manner in the circumference direction () to a drive torque-transmitting mechanism of the drive device ().

Tool-holding device for an insert tool with at least essentially disk-shaped hub

In a hand-guided electrical toolwith a housingthat has a receiving collarembodied on it and with a guard hoodthat can be attached to the receiving collarand has a clamping strap, which can move freely around the receiving collarin a first position and rests snugly against the receiving collarin a second position, a secure connection between the guard hoodand the housingis achieved by virtue of the fact that the receiving collarhas at least one protrusion, which protrudes beyond the second area in the radial direction away from the spindle axle, and between the protrusionand the housing, there is a distance h, which approximately corresponds to the width b of the clamping strap, and by virtue of the fact that that the clamping straphas at least one indentationso that the first diameter dof the openingof the clamping strapin the vicinity of the indentationis greater than the second diameter din the remaining region, wherein the first diameter dis of such a size that the clamping strapcan be moved over the protrusionand the second diameter dis of such a size that the clamping strapcannot be moved over the protrusion

Hand-guided electric tool comprising a guard

The invention is based on an insert tool with a rotationally driveable disk-shaped hub and an abrasive disposed in particular in a radially outer region, in particular of the kind used for a cut-off wheel, a grinding disk, a rough grinding disk, a cutting disk, or an abrasive paper. The invention proposes that the hub () have at least one mount (), which is disposed off-center, extends in the axial direction (), and is intended for a bolt that constitutes a functional element of a quick-action clamping system.

Attachment and rapid-chucking system, comprising a rotatably driven, disc-shaped hub

In a power tool with two cutting wheels (), which rotate past each other in opposite directions, rest directly against each other, and can be driven by two drive spindles () disposed concentrically to each other, and with a tool fitting () for the cutting wheels () that has a support flange (), which is non-rotatably connected to the respective inner or outer drive spindle and provides a centered support and form-fitting rotary slaving for the cutting wheels (), and has clamping means for securing the form-fitting engagement between the cutting wheels () and the support flanges (), in order to produce a simple design of the tool fitting (), with a high operational reliability and a low space requirement, as well as tool-free changing of the cutting wheels, the clamping means have a screw part (), which supports the second support flange () and whose end can be screwed without tools into the inner drive spindle (), and have a clamping part, which can be actuated without tools, presses the second support flange () axially against the inner drive spindle (), and clamps the second support flange () in relation to the screw part () (FIG.).

Hand machine tool comprising two cutting disks, which rotate counter and immediately adjacent to one another, and means for chucking the cutting disks for a hand machine tool of this type

A battery-operated electrical tool () is provided with a machine housing () that has a longish, substantially rod-shaped housing portion () containing an electric drive motor () and an end portion () on which a terminal connection surface () with push-in receptacle () for the detachable attachment of a battery packet () is provided, which said battery packet is provided with a connection part () that comprises a seating surface () matched to the connection surface () for seating on said connection surface, and comprising a push-in part () engaging in the push-in receptacle (). The end portion () is inflected toward one side in relation to the housing portion () out of the direction of longitudinal extension. The terminal connection surface () of the end portion () extends within a plane () that is oriented skew in relation to a plane () extending substantially perpendicularly to the longitudinal axis () of the housing portion ().

Battery operated electrical tool

An insert tool with grinding blade and a supporting disk, and with a hub, which has at least one opening that permits the hub to be clamped to a driver flange of a grinder, which flange is connected to a drive shaft, wherein the hub is constituted by a component that is separate from the supporting disk, the hub can be operatively connected to a driver device of the grinder by means of at least one detent element, which is supported so that it can move in opposition to a spring element and which engages in detent fashion in an operating position of the hub and fixes the hub in a positively engaging manner.

Growing community of inventors

Steinenbronn, Germany

Albrecht Hofmann