Abstract: A machine tool that can be guided manually has an outer housing that extends along a longitudinal axis and has a hand grip region. An electrical drive unit and a tool unit are accommodated in the outer housing and are mechanically uncoupled relative to the outer housing. The outer housing has a center of mass that, with respect to the length of the outer housing, is arranged along the longitudinal axis in a section that extends toward the rear from the geometric center of the outer housing.

Abstract: A handheld oscillation machine tool has support devices for maintaining a spacing between internal parts and an outer housing. The support devices are arranged in pairs of first and second support devices. One support device in each pair has a concave circular surface, and the other has an opposed convex circular surface. Elastically deformable damping elements are arranged between the pairs of support devices. The damping elements are deformed from original flat conditions under forces applied by the support devices, and have concave and convex circular surface adjoining the opposed concave and convex circular surfaces at the support devices.

Abstract: Hand-held machine tool having an outer housing extending substantially along a longitudinal axis, with an electric drive unit accommodated in this outer housing, and with a tool arrangement which is disposed at a first end of the electric drive unit. The outer housing of the machine tool has a defined inner contour and the electric drive unit and the tool arrangement have a defined outer contour. The outer contour and the inner contour of the outer housing are at a predetermined minimum spacing from each other. At least one inlet opening for cooling air is disposed in an end region of the outer housing. The electric drive unit drives a fan arrangement which draws in through the at least one inlet opening cooling air which flows substantially parallel to the rotational axis of the electric drive unit through the machine tool and flows out of the outer housing to the outside at the outer contour of the machine tool.

Abstract: The invention relates to a machine tool that can be guided manually and has an outer housing extending substantially along a longitudinal axis, which has a grip region which is provided for engaging and for guiding the machine tool by means of a hand of a user, comprising an electrical drive unit accommodated in said outer housing and a tool unit that is substantially mechanically uncoupled relative to the outer housing. The outer housing has a centre of mass that, with respect to the length of the outer housing, is arranged along the longitudinal axis in a section that extends toward the rear from the geometric centre of the outer housing.

Abstract: The invention concerns a hand-held machine tool (10) having an outer housing (12) which extends substantially Along a longitudinal axis and comprises a gripping region (13) which is provided so that it can be gripped and the machine tool (1) guided by a user's hand, and having an electric drive unit (14), which is accommodated in the outer housing (12), and a tool arrangement (15) which is coupled substantially rigidly to the electric device unit (14). The outer housing (12) of the machine tool (10), has a defined inner contour (20) and the electric drive unit (14) and the tool arrangement (15) have a defined outer contour (19). The outer contour (19) and the inner contour (2) of the outer housing (12) are at a predetermined minimum spacing trout each other.

Abstract: A power-driven hand tool is disclosed comprising a housing, a work spindle for driving a tool, which tool can be located between a tool end of the work spindle and a fixing mechanism, further comprising a displacing mechanism with a clamping lever, adapted to pivot about a pivot axis for displacing the fixing mechanism between a releasing position, in which the fixing mechanism can be released from the work spindle, and a clamping position in which the fixing mechanism is clamped on the work spindle by a spring. An impeding mechanism is provided that interacts with the clamping lever for impeding the pivoting movement of the clamping lever between the releasing position and the clamping position.

Abstract: Disclosed is a tool for sawing, grinding, cutting or rasping, for a hand-held power tool appliance driven in an oscillating manner, in particular for an electric power tool driven in an oscillating manner, wherein the tool comprises at least one predetermined break line, which allows a part of the tool to be broken off.

Abstract: A power-driven hand tool comprises a drive spindle adapted to drive a tool, that can be driven to oscillate about its longitudinal axis, which tool can be fixed on a retaining section of the dive spindle by a securing element, and further comprises a displacing device that serves to displace the securing element between a releasing position in which the securing element can be released from the drive spindle and a clamping position in which the securing element is clamped on the retaining section by a spring element, the securing element comprising a clamping shaft adapted to be inserted into the securing element, which is axially fixed in the drive spindle for clamping the tool in the clamping position, and which can be detached in the releasing position. For clamping of the tool a split chuck is provided which is clamped on the retaining section by the securing element in the clamped position and is connected with the retaining section in form-locking engagement.

Abstract: The invention relates to an oscillatory drive having an output shaft that can be driven to perform a rotationally oscillating movement about its longitudinal axis and that comprises a free end, a holding fixture at the free end of the output shaft comprising a contact surface for attachment of a tool, a mounting section on the holding fixture, raised relative to the contact surface, that projects to the outside in the direction of the longitudinal axis and that is designed for form-locking connection with a mounting opening of a tool placed in contact with the contact surface, and having a securement for fixing the tool with its mounting opening on the holding fixture, the securement permitting the tool to yield in axial direction under the action of a torque, against a pre-stress, and the mounting section permitting the tool to rotate by a certain angle of rotation when the tool gives way axially.

Abstract: A power-driven hand tool is disclosed comprising a housing, a work spindle for driving a tool, which tool can be located between a tool end of the work spindle and a fixing mechanism, further comprising a displacing mechanism with a clamping lever, adapted to pivot about a pivot axis for displacing the fixing mechanism between a releasing position, in which the fixing mechanism can be released from the work spindle, and a clamping position in which the fixing mechanism is clamped on the work spindle by a spring. An impeding mechanism is provided that interacts with the clamping lever for impeding the pivoting movement of the clamping lever between the releasing position and the clamping position.

Abstract: A tool is disclosed having a mounting opening for positive connection to a drive shaft that can be driven oscillatingly, the mounting opening comprising a plurality of outwardly extending projections each having an outer convex section that ends on both sides in concave lateral flanks, with neighboring lateral flanks joining each other on their way toward the center axis of the mounting opening to form a common bulge, concave on the outside, the shape of the outwardly extending projections, of the lateral flanks and of the bulges being such that there can be effected, optionally, either a positive connection to a first raised securing section of a first drive shaft, having a plurality of outwardly extending convex raised portions each having a rounded tip and rounded concave lateral flanks, or, optionally, a positive connection to a second securing section of a second drive shaft, having a plurality of raised positive-connection elements arranged in regular intervals on a circular line.

Abstract: A power-driven hand tool comprises a drive spindle adapted to drive a tool, that can be driven to oscillate about its longitudinal axis, which tool can be fixed on a retaining section of the dive spindle by a securing element, and further comprises a displacing device that serves to displace the securing element between a releasing position in which the securing element can be released from the drive spindle and a clamping position in which the securing element is clamped on the retaining section by a spring element, the securing element comprising a clamping shaft adapted to be inserted into the securing element, which is axially fixed in the drive spindle for clamping the tool in the clamping position, and which can be detached in the releasing position. For clamping of the tool a split chuck is provided which is clamped on the retaining section by the securing element in the clamped position and is connected with the retaining section in form-locking engagement.

Abstract: The invention relates to an oscillatory drive having an output shaft that can be driven to perform a rotationally oscillating movement about its longitudinal axis and that comprises a free end, a holding fixture at the free end of the output shaft comprising a contact surface for attachment of a tool, a mounting section on the holding fixture, raised relative to the contact surface, that projects to the outside in the direction of the longitudinal axis and that is designed for form-locking connection with a mounting opening of a tool placed in contact with the contact surface, and having a securement for fixing the tool with its mounting opening on the holding fixture, the securement permitting the tool to yield in axial direction under the action of a torque, against a pre-stress, and the mounting section permitting the tool to rotate by a certain angle of rotation when the tool gives way axially.