Abstract: A guide device to guide portable power tools on a constrained guidance unit includes at least one base body unit and at least one guide unit. The base body unit, in at least one operating state, is disposed on a side of a seating unit of a portable power tool that faces away from a housing of the portable power tool. The guide unit is configured to positively connect to the constrained guidance unit. The guide unit is also movably mounted to the base body unit.

Abstract: An auxiliary handle for a motor-driven hand tool has a mounting device which forms an upper region and provides a force-transmitting and/or form-locking connection to a hand tool; a handle forming a lower region, a damping element forming an intermediate region and located at least locally between the mounting device and the handle, the damping element having a damping material with which, during an operation of a hand tool, it dampens vibration transmitted through the mounting device to the handle, the damping element in its damping region acting for damping having at least one reinforcing region that has a lower deformability than a remaining part of the damping region and during deviations of the handle in at least two different directions relative to the mounting device causes differently great elastic counter forces.

Abstract: A hand-held power tool, in particular an electrical hand-held power tool (1), includes a drive motor (4), a tool shaft (14), and a first overload clutch (19) for limiting the maximum torque that acts on the tool shaft (14). Preferably, the hand-held power tool also includes a second overload clutch (20).

Abstract: The invention relates to an auxiliary handle which includes at least one fastening element for fastening the auxiliary handle to a hand-held power tool. In order to establish a direct or indirect form-locking connection between the auxiliary handle and the hand-held power tool, a spring element of the fastening element snaps into a recess of the hand-held power tool. The invention further relates to a hand-held power tool having such an auxiliary handle.

Abstract: The invention relates to an electric tool, in particular a hand-held electric tool, having a housing, which has a rear housing part and at least one front housing part arranged in front of the rear housing part in the longitudinal direction of the electric tool, and an electric drive motor having an armature shaft that extends in the longitudinal direction of the electric tool. The armature shaft is rotatably mounted together with a rear bearing arranged at the rear housing part. According to the invention, the rear bearing is designed as a fixed bearing.

Abstract: The invention relates to a hand-held tool (1), in particular an electric handheld tool, comprising a drive motor (4), a tool shaft (14) and a first overload clutch (19) for limiting the maximum torque acting on the tool shaft (14). According to the invention, it is provided that at least a second overload clutch (20) is provided.

Abstract: The invention relates to a power tool having a change-speed gear device comprising a plurality of gears (1, 2) for adjusting on demand power stages of a drive, wherein an overload protection can be coupled to the gears (1, 2). According to the invention, the device comprises at least one gear (3) in which the overload protection function can be forcibly deactivated. The invention also relates to an overload protection.

Abstract: A suction extraction system of an electric power tool has a housing, a cup-shaped part of the housing, a gear-containing chamber, a suction extractor for receiving air contaminated with drilling material, and a suction conduit for extracting the air by suction, the suction extractor being connectable to the electric power tool via a connection element, wherein the suction conduit is located at least partially inside the housing of the electric power tool and is sealed from outside by a self-closing closure.

Abstract: A device for sensing a direction of rotation of a hand tool having an electric motor, has a rotatably supported brush plate provided in the electric motor and located in different positions depending on a direction of rotation of the electric motor; and at least one sensor which senses the different positions of said brush plate to determine a direction of rotation, wherein said sensor is configured as a contactless sensor.

Abstract: The invention relates to a clutch (2) for a hand-operated electrical tool, in particular for a hand-held electrical device with a rotating tool, such as a drill or hammer drill, where the clutch (2) disengages automatically when a defined disengagement torque is exceeded. The invention further relates to a hand-operated electrical tool, in particular a hand-held electrical device with a rotating tool, which has this type of clutch (2). The clutch (2) is switchable between two clutch conditions, which have a different level of disengagement torque.

Abstract: A hand power tool has a clutch, a motor, a drive shaft located at a side of the motor, a driven shaft to be located at a side of a workpiece, a clutch which couples the drive shaft and the driven shaft and enters into engagement when pressure is exerted on the driven shaft, and the clutch is provided with a clutch engagement aid.

Abstract: A suction device for a power tool, in particular for a drilling and/or chipping tool, has at least one dust container and at least one suction head to be placed on a workpiece, wherein the dust container is integrated in the suction head.

Abstract: The invention relates to a power tool having a change-speed gear device comprising a plurality of gears (1, 2) for adjusting on demand power stages of a drive, wherein an overload protection can be coupled to the gears (1, 2). According to the invention, the device comprises at least one gear (3) in which the overload protection function can be forcibly deactivated. The invention also relates to an overload protection.

Abstract: The invention relates to a suction system of an electric machine tool, comprising a housing (12), a pot part (20) of the housing (12), and a transmission chamber (13), with a suction device (10) for receiving air that is contaminated with drilled material, and a suction duct (11) for sucking off the air. The suction device (10) can be connected to the electric machine tool via a joining element (15) while the suction duct (11) is disposed at least in part inside the housing (12) of the electric machine tool. The invention further relates to an electric machine tool comprising a suction system.

Abstract: The invention describes a supplementary handle for a power tool, including a grip element and a clamping device for detachable fastening of the handle to a housing of a power tool, the clamping device including a clamping screw in such a way that by rotation of the grip element, the clamping device can be clamped to a housing of a power tool, and the grip element has at least a first axial partial element and a second axial partial element, and the first partial element is embodied rigidly relative to the clamping device, and the second partial element is embodied rotatably relative to the clamping device.

Abstract: A shifting device has a first shifting element, a second shifting element, and a rotatably supported user-operation element including a converter element for converting a rotary motion of the user-operation element into a displacement of the first shifting element in a first direction, the user operation element also including a converter element for converting the rotary motion of the user-operation element into a displacement of the second shifting element in a second direction.

Abstract: An electric power tool has a plurality of separable housing parts including at least two shell elements oriented toward one another of a housing and one cup element of a housing, and the housing parts include one housing part of the cup element which at least partly embraces one housing part of the shell element from outside.

Abstract: A device for sensing a direction of rotation of a hand tool having an electric motor, has a rotatably supported brush plate provided in the electric motor and located in different positions depending on a direction of rotation of the electric motor; and at least one sensor which senses the different positions of said brush plate to determine a direction of rotation, wherein said sensor is configured as a contactless sensor.

Abstract: The present invention provides-a photoluminescent phosphor coated with a coating of oxide, the phosphor comprising (1) an inorganic phosphor chosen from (a) a metal thiogallate phosphor and (b) a metal sulfide phosphor and (2) a coating that comprises at least one layer having at least one oxides. The coated photoluminescent phosphor of the present invention is more resistant to water-induced degradation than when it is uncoated.

Abstract: Embodiments of the present invention generally provide an anastomosis device that can be used to couple two or more layers of tissue in apposition. In an exemplary embodiment, the device can be formed from one or more woven wires that can be configured to have a generally tubular shape in a first, expanded position for insertion to an anastomosis site and a generally annular, ring-shape in a second, resting position for securing tissue in apposition at the anastomosis site. The device can be adapted either to cause necrosis of the tissue layers around an outer periphery of the device or to promote growth of tissue about an inner periphery of the device.