Abstract: A hand-held power tool, in particular a hammer drill or combination hammer, having a tool fitting for holding a striking and rotating tool on a working axis, an electric motor coupled to a transmission shaft, an impact mechanism, which has a striker that is moved periodically along the working axis, and having a rotary drive, which drives a guide tube carrying the tool fitting in rotation about the working axis, wherein the rotary drive is coupled to the transmission shaft via a rocker lever.

Abstract: A hand-held power tool, in particular a hammer drill or combination hammer, having a tool fitting for holding a striking and rotating tool on a working axis, an electric motor coupled to a transmission shaft, an impact mechanism, which has a striker that is moved periodically along the working axis, and having a rotary drive, which drives a guide tube carrying the tool fitting in rotation about the working axis, wherein the rotary drive is coupled to the transmission shaft via a rocker lever.

Abstract: A portable power tool is disclosed. The tool has a tool holder, a motor, a switchable gear stage, and a slider. The gear stage has a gear element movable in a switching direction with a toothing, which in a first gear position is engaged with a corresponding toothing and in a second gear position is disengaged. The slider is displaceable between first and second switch positions where the first switch position is allocated to the first gear position and the second switch position is allocated to the second gear position. A coupling device has a carriage movable in the switching direction and a catch. The carriage is connected to the gear element and the catch is latched in the first and second gear positions. A spring element has springy first and second sections. The slider has a finger that is arranged along the switching axis between the sections.

Abstract: The torque coupling has a shaft, a hollow shaft and a plurality of levers. The bearings of the levers are non-rotatably connected to the shaft and the levers are spring-loaded so as to be pressed against the hollow shaft. The levers are bent from a steel strip.

Abstract: An installation body used as an axially fixed and rotatable receptacle for a handle. The handle consist of a circumferential engagement groove in a neck section of the handle that is in contact with the installation body. The installation body is composed of a base body with a passage opening aligned centrally with an axis (D), a guide bushing for the neck section of the handle, whereas the guide bushing is arranged inside the passage opening of the base body and locking mechanism, which fixates the handle inside base body in a releasable manner. The locking mechanism uses locking balls, which are adjustable arranged radially in the direction of the axis inside the guide bushing. The latter is positioner the passage opening of the base body in a direction (A) in an adjustable manner, wherein the guide bushing, or the base body, has a circumferential inclined surface that is acted upon by a pressure spring the direction (A).

Abstract: A machine tool is disclosed. The machine tool has a tool receptacle for receiving a tool on a working axis, a housing, and a striking mechanism. An impact stop is provided for a beater or an intermediate beater. An impact absorber has two polymer-based absorber rings that are offset axially to one another and are disposed so that they overlap radially and has two iron-based disks disposed axially between the absorber rings.

Abstract: A handheld power tool has a switchable gear component actuatable by a selector switch. The gear component moves from a first operating position into a second operating position. The selector switch has a first switching position associated with the first operating position and a second switching position associated with the second operating position, and movable so that intermediate positions are assumed. A traveling coupling between the selector switch and the gear component has a spring exerting force onto the gear component in the first direction. A locking bolt is coupled to the selector switch in a positively driven manner. In the intermediate positions, the locking bolt is moved into a blocking bolt position blocking movement of the gear component out of the first operating position into the second operating position. When the selector switch is in the second switching position, the locking bolt is in a releasing bolt position.

Abstract: A hand-held power tool 1 has a tool socket 2 to hold a tool 4 on a working axis 11, a motor 5 and a pneumatic striking mechanism 6. A driven shaft 7 is coupled to the tool socket 2 in order to rotate the tool around the working axis 11. A slip clutch 24 is arranged in the drive train between the motor 5 and the driven shaft 7. The slip clutch 24 has a disk 25 on the drive side and a disk 26 on the driven side. On a driving ring surface 28 that is in contact with the disk 26 on the driven side, the disk 25 on the drive side has first sectors 33 that have a high friction value as well as second sectors 34 that have a low friction value. On the driven ring surface 29 that is in contact with the driving ring surface 28, the disk 26 on the driven side has third sectors 35 that have a high friction value as well as fourth sectors 36 that have a low friction value.

Abstract: A hand machine tool includes a tool retainer that retains a tool, a motor that drives the tool retainer in a rotary motion, and a torque-controlled sliding clutch that is connected in a drivetrain between the motor and the tool retainer. The sliding clutch includes a first clutch disk, a second clutch disk, a spring and a controlling unit which can be activated manually. The second clutch disk is arranged displaceably alongside an axis limited by a stop in the direction toward the first clutch disk. Force is applied to the second clutch disk by the spring alongside the axis in the direction toward the first clutch disk. The manually activated controlling unit variably sets an axial distance between the first clutch disk and the stop, with which an engagement depth of the first clutch disk with the second clutch disk can be defined.

Abstract: The installation body is used as an axially fixed and rotatable receptacle for a handle, which consists of a circumferential engagement groove in a neck section that is in contact with the installation body. For this purpose, the installation body is composed of a base body with a passage opening aligned centrally with an axis (D), a guide bushing for the neck section of the handle, whereas the guide bushing is arranged inside the passage opening of the base body and a locking mechanism, which fixates the handle inside the base body in a releasable manner. The locking mechanism uses locking balls, which are adjustable and arranged radially in the direction of the axis (D) inside the guide bushing. The latter is positioned in the passage opening of the base body in the axial direction (A) in an adjustable manner, wherein the guide bushing is acted upon by a pressure spring in the axial direction (A).

Abstract: A window or door fitting for actuation of a mechanism integrated in a window or a door has a stop body that can be attached to the window or the door, a handle, that is rotatably mounted on the stop body in an axially fixed manner, a polygonal element for the mechanical coupling of the fitting to the mechanism integrated in the window of the door, and a coupling configuration formed between the handle and the polygonal element, with which a torque transference from the handle to the polygonal element can be effected, but can be blocked in the direction from the polygonal element to the handle. The coupling configuration has two driving elements for this, wherein a first diving element is connected to the handle in a rotationally locked manner, while a second driving element accommodates the polygon in a rotationally fixed manner.

Abstract: A machine tool is disclosed. The machine tool has a tool receptacle for receiving a tool on a working axis, a housing, and a striking mechanism. An impact stop is provided for a beater or an intermediate beater. An impact absorber has two polymer-based absorber rings that are offset axially to one another and are disposed so that they overlap radially and has two iron-based disks disposed axially between the absorber rings.

Abstract: A hand machine tool includes a tool retainer that retains a tool, a motor that drives the tool retainer in a rotary motion, and a torque-controlled sliding clutch that is connected in a drivetrain between the motor and the tool retainer. The sliding clutch includes a first clutch disk, a second clutch disk, a spring and a controlling unit which can be activated manually. The second clutch disk is arranged displaceably alongside an axis limited by a stop in the direction toward the first clutch disk. Force is applied to the second clutch disk by the spring alongside the axis in the direction toward the first clutch disk. The manually activated controlling unit variably sets an axial distance between the first clutch disk and the stop, with which an engagement depth of the first clutch disk with the second clutch disk can be defined.

Abstract: A window or door fitting for actuation of a mechanism integrated in a window or a door has a stop body that can be attached to the window or the door, a handle, that is rotatably mounted on the stop body in an axially fixed manner, a polygonal element for the mechanical coupling of the fitting to the mechanism integrated in the window of the door, and a coupling configuration formed between the handle and the polygonal element, with which a torque transference from the handle to the polygonal element can be effected, but can be blocked in the direction from the polygonal element to the handle. The coupling configuration has two driving elements for this, wherein a first diving element is connected to the handle in a rotationally locked manner, while a second driving element accommodates the polygon in a rotationally fixed manner.

Abstract: The torque coupling has a shaft, a hollow shaft and a plurality of levers. The bearings of the levers are non-rotatably connected to the shaft and the levers are spring-loaded so as to be pressed against the hollow shaft. The levers are bent from a steel strip.

Abstract: Arrangements for the point-to-point imaging of a broad spectrum of electromagnetic radiation and ultrasound at large angles of incidence employ matched pairs of spherically bent reflectors to eliminate astigmatic imaging errors. Matched pairs of spherically bent crystals or spherically bent multi-layers are used for X-rays and EUV radiation; and matched pairs of spherically bent mirrors that are appropriate for the type of radiation are used with microwaves, infrared and visible light, or ultrasound. The arrangements encompass the two cases, where the Bragg angle—the complement to the angle of incidence in optics—is between 45° and 90° on both crystals/mirrors or between 0° and 45° on the first crystal/mirror and between 45° and 90° on the second crystal/mirror, where the angles of convergence and divergence are equal. For x-rays and EUV radiation, also the Bragg condition is satisfied on both spherically bent crystals/multi-layers.

Abstract: An at least partially rotating and axially percussive hand-held machine tool (4) has an impact mechanism (5) with a guide tube (6) in which a percussion piston (7) is driven in an axially percussive manner by a pneumatic spring (8) and with a slip clutch (10) which is driven in rotation, encloses the guide tube (6), is provided axially with cams (9), and has a driving sleeve (11) and driven sleeve (12) which are biased axially relative to one another under pressure by a spring (13).

Abstract: A hand-held power tool, includes an auxiliary handle (1) having a head (4) positioned relative to an operational axis (A) of the power tool (3), a bar guide (5) extending parallel to the operational axis (A) and arranged in the head (4), a rigid bar (6) formlockingly and displaceably received in the bar guide (5) and serving as a depth stop, a locking member (7) for at least partially frictionally securing the depth stop-forming bar (6), and having at least one locking hole (9) for the depth stop-forming bar (6), and a clamp screw (8) for displacing the locking member (7) in a locking direction.

Abstract: A hand-held power tool includes a locking flange (2), and an auxiliary handle (1) securable to the locking flange (2) and having a head (4), a loop-shaped clamping band (5) located in the head (4), at least one, radially inwardly projecting cam (11a, 11b) provided on the clamping band (5) and formlockingly engageable in an associated recess (12a, 12b) formed in the locking flange (2), and a member for manually tensioning the clamping band (5).

Abstract: An at least partially rotating and axially percussive hand-held machine tool (4) has an impact mechanism (5) with a guide tube (6) in which a percussion piston (7) is driven in an axially percussive manner by a pneumatic spring (8) and with a slip clutch (10) which is driven in rotation, encloses the guide tube (6), is provided axially with cams (9), and has a driving sleeve (11) and driven sleeve (12) which are biased axially relative to one another under pressure by a spring (13).