Robert Boschgmbh

Joao Bergner

Steffen Wuensch

Uwe Engelfried

Eugen Hild

Martin Noack

Rudolf Fuchs

Klaus Baumgartner

Justus Lamprecht

Doris Reich

Marco Brancato

Roland Senn

An abrasive pad for a manual grinding machine, in particular for an eccentric grinder, has a flat contact surface () on which an abrasive sheet is placed, and attachment means located on the contact surface () for creating an adhesive connection with the abrasive sheet. To reduce the production costs of the abrasive pad, it is made entirely&#x2014;including the attachment means&#x2014;of plastic using a single-component injection molding procedure, whereby the attachment means are designed preferably as hook-type fasteners () which extend out of the contact surface () (FIG.).

Abrasive pad for a manual grinding machine

An electrical power grinder, in particular an eccentric grinder, is disclosed that has a grinding wheel () and a grinding-medium holder (), held on the underside thereof, of soft material. For the sake of reducing wear of the grinding-medium holder () at its outer edge and lengthening the service life of the grinding-medium holder, the grinding wheel () is provided with an edge guard, which has a guard member () encompassing the grinding wheel () that protrudes, in the plane of the grinding wheel, past the outer contour of the grinding-medium holder () (FIG.).

Electric portable grinding machine, particularly an eccentric grinder, provided with edge protection

The invention relates to an electric power tool with a housing, in which a drive mechanism is received; the electric power tool includes a shaft, with a chuck ( ) received in it, for receiving a tool insert ( ). The chuck ( ) is surrounded by an annular bearing face ( ). The bearing face ( ) includes receiving elements that enable the guidance of the electric power tool on a guide rail ( ), such as receptacles ( ) and ( ) for slip-on tools ( ), such as templates, that can be received on the support ( ).

Electric tool comprising a universal mounting for tool attachments

In a grinding body ( ) for an electric grinding tool, in particular a delta, eccentric or oscillation grinder, having a carrier plate ( ), on which a granular abrasive ( ) is disposed and which can be connected to a base plate of the grinding tool, a markedly higher material-removal capacity and a markedly longer service life are attained by providing that the carrier plate ( ) comprises a steel band ( ), in particular a stainless-steel spring band, and the granular abrasive ( ) is a hard-metal granular abrasive ( ).

Abrasive body and abrasive means for an electric grinding tool, and electric grinding tool

The invention relates to an electric hand tool ( ) with an electric motor contained in a housing, which drives a chip-removing tool ( ). The mounting section ( ) of a mounting rail ( ) is mounted in a detent locking fashion onto the mounting base ( ) of the electric hand tool ( ). A carriage-shaped component equipped with a compass point ( ) is mounted onto this mounting rail ( ) and/or a parallel fence ( ) can be adjustably positioned on it.

Electric hand tool with function-enhancing accessories

Electric hand-operated grinder

A hand power tool for flat machining has a machine housing, a motor accommodated in the machine housing, a toolholder mounted on the housing, a moveable tool carried by the toolholder and formed as a grinding plate with a triangular base surface for receiving a triangular grinding disk, the toolholder having a substantially triangular base surface substantially corresponding to the base surface of the grinding plate, the toolholder having a region against which the grinding plate is supported and on which the grinding plate is mounted on the toolholder so as to be locked on the toolholder and to be removable from the toolholder without an auxiliary tool.

Hand power tool for flat machining

A hand grinder, comprising a housing, a motor arranged in the housing, a tool holder with a grinding tool received in the tool holder, a work shaft driven by the motor, two rotary bearings which support the work shaft, a compensating unit arranged on the work shaft for joint rotation therewith between the rotary bearings and provided for compensation of an imbalance produced by the tool holder with the grinding tool during rotation of the work shaft, the compensating unit including different imbalance masses which are offset from one another in an axial direction of the work shaft and are arranged on the work shaft diametrically opposite to one another.

Hand grinder

Hand-operated orbital sander

A power tool for surface treatment comprises a housing, a motor accommodated in the housing, a tool holder, a tool supported in the tool holder and driveable by the motor, the tool having a substantially triangular base surface for receiving a substantially triangular grinding sheet, the tool holder being shell-shaped and having a substantially triangular contour substantially corresponding to the base surface of the tool, and also having an outer edge abutting on the tool.

Power tool for surface treatment

The oscillating grinder includes a housing; a drive motor having a rotatably driven armature shaft and mounted in the housing; a grinder plate connected with the housing by one or more supporting members each having a long side; an eccentric element mounted eccentrically on the armature shaft for converting a rotary motion of the motor into a linear motion of the grinder plate; and a transmission element having a long side and connecting the eccentric element to the grinder plate. The transmission element and the supporting members have different angular moments of inertia in different directions so that a displacement of the eccentric element in one direction, advantageously in the handle direction, is completely transmitted to the grinder plate, but a displacement in another direction transverse to the first direction is no more than incompletely, and preferably not at all, transmitted to the grinder plate, thus providing a linear grinding motion.

Growing community of inventors

Aidlingen, Germany

Joao Bergner