Abstract: The invention is based on an electric device, in particular an electric hand tool, having a removable power supply unit (18, 70, 104), an accommodation region (16, 102, 132, 144, 156) for accommodating the power supply unit (18, 70, 104), and a locking device (20, 76, 114, 134, 146, 154) for locking the power supply unit (18, 70, 104) to the accommodation region (16, 102, 132, 144, 156). It is proposed that the locking device (20, 76, 114, 134, 146, 154) is provided for the purpose of unlocking the power supply unit (18, 70, 104) from a locked state—by means of a force which is exerted on the power supply unit (18, 70, 104) and moves the entire power supply unit (18, 70, 104) in relation to the accommodation region (16, 102, 132, 144, 156).

Abstract: A handle for an electric hand tool, which in use, is detachably connected to the hand tool as an auxiliary handle (2), includes at least one detection device (6), which communicates with at least one regulating and/or control element in the electric hand tool through a contactless signal transmission device.

Abstract: The present invention relates to a method for graphically displaying a sectional image of an object under examination (1, 18) having objects (2, 17) situated therein, in particular for the display of a sectional image of a building wall. The invention provides that the sectional image with the objects (2, 17) situated in the object under examination (1, 18) is displayed already while data acquisition by the position detector (3, 19) is taking place.

Abstract: A marking device, in particular a hand-held marking tool for positioning markings, comprises first means (50, 52, 54, 56) which make it possible to position the device (10) in a predefinable first position of a reference surface (16), and second means (46) for leveling the device (10) relative to the reference surface (16), as well as a tracking system (13) for determining a distance covered by the device (10) relative to the first position of the device. The tracking system (13) detects the movement of the measuring instrument (10) on the reference surface (16) in two orthogonal directions (18,20).

Abstract: The invention is based on an electric device, in particular an electric hand tool, having a removable power supply unit (18, 70, 104), an accommodation region (16, 102, 132, 144, 156) for accommodating the power supply unit (18, 70, 104), and a locking device (20, 76, 114, 134, 146, 154) for locking the power supply unit (18, 70, 104) to the accommodation region (16, 102, 132, 144, 156). It is proposed that the locking device (20, 76, 114, 134, 146, 154) is provided for the purpose of unlocking the power supply unit (18, 70, 104) from a locked state—by means of a force which is exerted on the power supply unit (18, 70, 104) and moves the entire power supply unit (18, 70, 104) in relation to the accommodation region (16, 102, 132, 144, 156).

Abstract: A handheld device. In particular a locating device, includes a housing (10), which is movable with a handle unit (12) over a surface of an item being examined and which has a sensor unit (16) for picking up a first motion parameter. At least one second motion parameter can be detected with the sensor unit (16).

Abstract: The invention relates to a device for positioning markings, having a first equipment unit (10), having means (14) for disposing the first equipment unit (10) at a predeterminable first position (18) of a reference face (16), and having optical signal means (20, 22, 50, 54, 60, 62, 64, 66) for generating directional information. According to the invention, it is proposed that the device has a second equipment unit (12, 13), which is positionable relative to the first equipment unit (10) and which has means (20, 22, 28, 50, 54, 60, 62, 64, 66), which make it possible to ascertain the spacing of the second equipment unit (12, 13) from the first equipment unit (10) in the direction predetermined by the first equipment unit.

Abstract: A marking device, e.g., a hand-held marking tool for positioning markings, includes a first arrangement which make it possible to position the device in a predefinable first position of a reference surface, and a second arrangement for leveling the device relative to the reference surface, as well as a tracking system for determining a distance covered by the device relative to the first position of the device. The tracking system detects the movement of the measuring instrument on the reference surface in two orthogonal directions.

Abstract: A quick-action chuck, in particular for a power tool, has an actuating element (20) and a control device which includes at least one mechanism (12, 22, 36, 42, 50) for controlling at least one locking device (10) that serves to absorb a chucking reinforcement force via the locking device (10) that is controllable by the control device, a positive-engagement connection can be brought about for absorbing the chucking reinforcement force.

Abstract: The present invention is based on a method for operating a guided power tool (10), in particular an electric power tool, with a rotatably and/or percussively driven insert tool (36), whereby the insert tool (36) is driven into a work piece (34) in a work process. It is proposed that at least one measured signal detected at the power tool (10) during the work process is evaluated to derive a property of the work piece (34) located in the working direction of the Insert tool (36), and the power tool (10) is operated in accordance with the property. A guided power tool is also proposed.

Abstract: A quick chuck for a hand power tool has an actuating element, at least one arresting element for receiving a clamping support force, a control device having at least one control unit for controlling the at least one arresting element, the arresting element controllable by the control device producing a form-locking connection for receiving the clamping support force.

Abstract: An electric hand tool having a machine housing, with an electric motor accommodated in the machine housing for driving a tool, and a fan wheel accommodated in the machine housing for generating a main cooling air current that flows from a main air inlet to a main air outlet through the machine housing, which said fan wheel creates a suction space and a pressure space on opposite sides when it rotates, wherein means for generating an additional air current are provided and configured such that the additional air current flows onto at least one machine component that is located outside of or in a low-flow region of the main cooling air current, wherein the electric motor includes a motor winding with winding heads that project outward on at least one end face of the electric motor, the fan wheel is located with axial clearance in front of the end face of the electric motor and is configured such that the suction space is located in front of the end face of the electric motor where the winding heads are located,

Abstract: An electric hand tool having a machine housing, with an electric motor accommodated in the machine housing for driving a tool, and a fan wheel accommodated in the machine housing for generating a main cooling air current that flows from a main air inlet to a main air outlet through the machine housing, which said fan wheel creates a suction space and a pressure space on opposite sides when it rotates, wherein means for generating an additional air current are provided and configured such that the additional air current flows onto at least one machine component that is located outside of or in a low-flow region of the main cooling air current, wherein the electric motor includes a motor winding with winding heads that project outward on at least one end face of the electric motor, the fan wheel is located with axial clearance in front of the end face of the electric motor and is configured such that the suction space is located in front of the end face of the electric motor where the winding heads are located,

Abstract: A power tool with a housing (12) and a tool (18, 22) located thereon such that it is capable of being driven in a rotating and/or oscillating manner, the tool being operable as directed using vacuum flow, in particular using a vacuum cleaner. The power tool is made particularly powerful by the fact that a radial turbine wheel (34) with forward-guiding and rearward-guiding vane rows (44, 48) functions as the drive.

Abstract: The invention is based on a device (10) with a sensor, which is guided with one hand (20, 22) over a surface (14) and in which the data detected are displayed by a display unit (38). The invention proposes that grasping surfaces (40, 42) for the hand (20, 22) be positioned on two approximately diametrically opposed sides of a grip (12), at least one of which sides has a sensor (26, 28, 30, 32) that detects the number of fingers (20, 22) resting against this grasping surface (40, 42).

Abstract: The present invention is based on a method for operating a guided power tool (10), in particular an electric power tool, with a rotatably and/or percussively driven insert tool (36), whereby the insert tool (36) is driven into a work piece (34) in a work process. It is proposed that at least one measured signal detected at the power tool (10) during the work process is evaluated to derive a property of the work piece (34) located in the working direction of the insert tool (36), and the power tool (10) is operated in accordance with the property. A guided power tool is also proposed.

Abstract: A power tool with a housing (12) and a tool (18, 22) located thereon such that it is capable of being driven in a rotating and/or oscillating manner, the tool being operable as directed using vacuum flow, in particular using a vacuum cleaner. The power tool is made particularly powerful by the fact that a radial turbine wheel (34) with forward-guiding and rearward-guiding vane rows (44, 48) functions as the drive.

Abstract: The invention relates to a handle for an electric tool. The handle according to the invention has at least one detecting unit.

Abstract: A positioning device includes a housing (10) and a display unit (12), in particular a display for graphic representation of measurement information, which display is movable for locating purposes using a handle unit (14) over a surface of an article being examined. The device has at least one sensor unit (20) for picking up a first motion parameter. At least one motion measuring direction (16, 18) extends transversely to the longitudinal direction (22) of the housing (10).

Abstract: An electric hand tool is described that includes a machine housing (1) with an electric motor (12) accommodated in the machine housing (11) for driving a tool (13), and a fan wheel (21) accommodated in the machine housing (11) for generating a cooling air current that flows through the machine housing (11), which said fan wheel creates a suction space (22) and a pressure space (23) on opposite sides when it rotates. To increase the performance of the electric hand tool with longer idle periods for the machine components, purposeful cooling is carried out by providing means for generating an additional air current, which said means are configured such that the additional air current flows to machine components that are located outside of or in a low-flow region of the cooling air current.