Robert Boschgmbh

Alfred Frech

Uwe Engelfried

Tobias Lutz

Joachim Schadow

Rudolf Fuchs

Sinisa Andrasic

Gerd Berner

Michael Behrendes

Thomas Palaver

Juergen Koellner

Reiner Silberer

Michael A Gabold

Juergen Wiker

Steffen Wuensch

Steffen Tiede

Siegfried Keusch

Wolfgang Hirschburger

Gunther Berger

Monika Staebler, Legal Representative

Siegried Keusch

The invention relates to a hand machine tool comprising a first housing shell (), a second housing shell () different from the first housing shell () and being connected to the first housing shell () via a damping element (), and a handle section () arranged on one of the housing shells (). The invention is characterized in that the first housing shell () at least partially encloses the second housing shell ().

Hand-held power tool

A hand-guided power jigsaw () with a jigsaw blade () which can be detachably clamped between the free ends of two essentially parallel arms () preferably comprised of a U-shaped frame (), in particular comprised of a tube, and which can be driven, in particular in a reciprocating manner, by a motor () integrated into the jigsaw (), wherein a laterally protruding handle () with a switch button () of an on/off switch is disposed at the free end of one of the arms (), can be manufactured as lightweight, compact, and inexpensive because the lower arm () carries the motor () and transmission mechanism () for moving the saw blade () back and forth, particularly in a base housing (), wherein a motor shaft () with a crankshaft () is coupled parallel to the arm () and is coupled by means of a connecting rod () to an elastic support () in order to clamp the jigsaw blade () in place.

Hand-guided jig saw machine

With a sanding-disc receiving element for a hand-guided electric sanding tool, an eccentric sander () in particular, the sanding-disc receiving element including a bearing flange () with a plurality of driving lugs () protruding in the axial direction around the surface (), and a plurality of screw holes (), and including a bearing () fixed in the axial and radial direction on the bearing flange (), simple, reliable installation of the sanding disc () on the bearing flange () is ensured by the fact that the driving lugs () and the screw holes () are arranged equidistantly relative to each other on a common circle around the central axis of the bearing flange ().

Grinding-disk receiving element especially for a hand-guided electric grinding tool

A hand-guided power jigsaw ( ) having a jigsaw blade ( ) which can be detachably clamped between the free ends ( ) of two essentially parallel-arms ( ) that are preferably comprised of a U-shaped frame ( ), in particular comprised of a tube, and which can be driven, in particular in a reciprocating manner, by a motor built into the jigsaw ( ), wherein a laterally protruding handle ( ) with a switch button ( ) is disposed on the front of the free end of one of the arms ( ), is particularly maneuverable and easy to produce since the lower arm ( ) has a, base housing ( ) attached to it, which is embodied in the form of a pistol and protruding obliquely back and down from underneath the housing ( ), has a handle ( ) whose rear contour toward the base housing ( ) forms a curved, angled throat ( ), which rests in the hand of the user in a horizontally and vertically supported fashion.

Hand-operated scroll sawing machine with a pistol-type, base housing that is supported on the lower arm

A handheld power fret saw ( ) having a power fret saw blade ( ), which can be clamped releasably between two arms ( ), on their ends, that are preferably formed of a U-shaped bracket ( ) comprising tubing, the end of one of the arms ( ) carrying a handgrip ( ), is used especially universally with high precision because the power fret saw ( ) can be clipped releasably, in particular in the manner of a bayonet mount, to a sawing table ( ), and together with the sawing table ( ) the power fret saw ( ) forms a portable handheld power tool, which when the sawing table ( ) is secured to a workbench or the like serves as a stationary tool.

Hand-operated scroll sawing machine with a support surface that can be detachably clipped to a sawing table

A hand-held belt sander has a housing, an on-off switch and a power supply conductor supported by the housing, a motor and a transmission received in the housing, a sanding belt, a driving roller driven by the motor and driving the sanding belt, a sliding shoe provided with a base, a deviating roller arranged so that said sanding belt is guidable over the deviating roller and the base of the sliding shoe, a unit for centering the sanding belt, a unit for clamping the sanding belt, the deviating roller and the driving roller have different diameters so that the sanding belt is guided inclinedly, the housing being elongated and the sanding belt being guided on guiding parts which are introduced in a rear region of the elongated housing so that with together with the sanding belt in a front region of the elongated housing a centrally forwardly extending, freely projecting, wedge tip-shaped contour is formed so that the hand-held belt sander as a whole has a lance-like contour.

Hand-held belt sander

Oscillating sander

A cutter block for a motor driven hand planer includes a roller body which is composed of two profiled bodies of equal cross section. The two profiled bodies cooperate with each other to grip a planing knife therebetween. Between the profiled bodies and a supporting shaft, centering spring elements are provided in respective recesses of the shaft. For tightening the profiled body and gripping of the interposed planing knives, shank screws are used which extend through the roller body. Perpendicular to the shank screws and parallel to the gripping surfaces of the profiled bodies are adjusting screws for transverse movement of the profiled bodies relative to each other and with respect to the shaft. Consequently, the position of the planing knife is adjustable.

Cutter block for a motor driven hand planer

A hand plane, especially a hand plane machine, is provided with an adjusting and indicating arrangement for the planing depth. A wedge which is located before the tool element of the hand plane machine is adjustably fixed to an inclined base surface of the housing and constitutes the contact surface of the hand plane machine. A part of the wedge projects beyond the forward edge of the housing and is provided at its upper side with a scale. By means of the housing edge, the displacment of the wedge and consequently the adjustment of the planing depth can be read from the scale. The hand plane is of simple structure and good stability with respect to the adjustment, wherein the wedge can be fastened to the housing for example through screwing.

Growing community of inventors

Leinfelden-Echterdingen, Germany

Alfred Frech