Abstract: A grounding contact for grounding a structure made of metal is provided. The grounding contact comprises a grounding attachment part having a grounding contact surface for placement on the structure. A pin attaches the grounding attachment part to the structure. The grounding contact includes a contact surface for contacting a ground wire. The grounding attachment part also includes a blind hole that accepts the pin to help ensure that corrosion is permanently avoided between the bearing contact surface of the grounding attachment part and the structure.

Abstract: A device and a method for fastening a first object of a second object are provided. The device comprises a sleeve and an arbor, wherein the sleeve comprises a first load application means for the first object and an abutment for an outer surface of the second object, as well as a passage, wherein a contraction of the passage in the sleeve extends at least up to the point of the passage that is the closest adjacent point to the abutment.

Abstract: A magazine for a hand-held setting tool for driving in fastening elements includes a guide housing (21), a spring-biased displacement element (24) for displacing fastening element (40), and an elongate guide member (26) having a guide region (27) that in a closing position (33) of the guide member (26) projects into the guide chamber (22), which is formed in the guide housing (21) for retaining the fastening elements in the guide channel (22), and that in a release position (34) of the guide member (26) is withdrawn from the guide chamber (22) to provide for displacement of at least one fastening element (40), with the guide member (26) having two support sections (28, 29) spaced from each other in a longitudinal direction of the guide member (26) and cooperating, respectively, with two control cams (30, 31) fixedly secured on the guide housing (21) for displacing the guide region (27) from the locking position (33) to the release position (34) and from release position (34) to the locking position.

Abstract: A piston holder for a drive piston (8) of a setting tool and having a circumferential adjusting surface (16) inclined toward a central axis (17) thereof so that a diameter of the adjusting surface (16) increase toward a rear, with respect to a setting direction (18) of the setting tool, end of the drive piston (8), with the piston holder including contact elements (22; 24; 36; 38; 40; 41, 52; 53; 58–61) engageable with the adjusting surface (16), and a spring (21; 27; 35; 36; 54; 55; 62) for biasing the contact elements into engagement with the adjusting surface (16).

Abstract: A magazine for a hand-held setting tool for driving in fastening elements includes a guide housing (21), a spring-biased displacement element (24) for displacing fastening element (40), and an elongate guide member (26) having a guide region (27) that in a closing position (33) of the guide member (26) projects into the guide chamber (22), which is formed in the guide housing (21) for retaining the fastening elements in the guide channel (22), and that in a release position (34) of the guide member (26) is withdrawn from the guide chamber (22) to provide for displacement of at least one fastening element (40), with the guide member (26) having two support sections (28, 29) spaced from each other in a longitudinal direction of the guide member (26) and cooperating, respectively, with two control cams (30, 31) fixedly secured on the guide housing (21) for displacing the guide region (27) from the locking position (33) to the release position (34) and from release position (34) to the locking position.

Abstract: A combustion-engined setting tool, including a housing (11), an axially displaceable piston guide (13) and a firing pin guide (12) provided on a side of the piston guide (13) facing in the direction opposite the setting direction and axially displaceable relative to the housing (11), damping element (20) supported against a stop (17) provided in the housing (11) and cooperating with the firing pin guide (12), and a locking device (30) having a locking position (28) in which it prevents a press-on force, which is generated upon the setting tool (10) being pressed against a construction component, from acting on the damping element (20), so that the damping element (20) remains inactive during a press-on process, and having a release position (29) in which the damping element (20) becomes active and is capable of absorbing recoil forces.

Abstract: A combustion-engined setting tool, including a housing (11), an axially displaceable piston guide (13) and a firing pin guide (12) provided on a side of the piston guide (13) facing in the direction opposite the setting direction and axially displaceable relative to the housing (11), damping element (20) supported against a stop (17) provided in the housing (11) and cooperating with the firing pin guide (12), and a locking device (30) having a locking position (28) in which it prevents a press-on force, which is generated upon the setting tool (10) being pressed against a construction component, from acting on the damping element (20), so that the damping element (20) remains inactive during a press-on process, and having a release position (29) in which the damping means (20) becomes active and is capable of absorbing recoil forces.

Abstract: A setting tool for driving in fastening element includes a bolt guide (12) axially displaceably arranged in the tool housing (11), a magazine (15) projecting sidewise from the bolt guide (12) and displaceable in a direction opposite the setting direction (40) against a biasing force of a first spring (22) relative to the bolt guide (12), a second spring located between the housing (11) and the magazine (15) and having a maximal biasing force acting in the setting direction (40) and an excursion greater than a maximal biasing force and an excursion of the first spring (22); and an annular element (23) which surrounds the piston guide (13) of the tool and is located in a receiving space (20) formed in the housing (11) for transmitting a biasing force of the second spring (21) to at least one engagement surface (19) provided on the magazine (15).

Abstract: A setting tool for driving in fastening element includes a bolt guide (12) axially displaceably arranged in the tool housing (11), a magazine (15) projecting sidewise from the bolt guide (12) and displaceable in a direction opposite the setting direction (40) against a biasing force of a first spring (22) relative to the bolt guide (12), a second spring located between the housing (11) and the magazine (15) and having a maximal biasing force acting in the setting direction (40) and an excursion greater than a maximal biasing force and an excursion of the first spring (22); and an annular element (23) which surrounds the piston guide (13) of the tool and is located in a receiving space (20) formed in the housing (11) for transmitting a biasing force of the second spring (21) to at least one engagement surface (19) provided on the magazine (15).

Abstract: A piston holder for a drive piston (8) of a setting tool and having a circumferential adjusting surface (16) inclined toward a central axis (17) thereof so that a diameter of the adjusting surface (16) increase toward a rear, with respect to a setting direction (18) of the setting tool, end of the drive piston (8), with the piston holder including contact elements (22; 24; 36; 38; 40; 41, 52; 53; 58-61) engageable with the adjusting surface (16), and a spring (21; 27; 35; 36; 54; 55; 62) for biasing the contact elements into engagement with the adjusting surface (16).

Abstract: A piston support, in particular for a driving piston (8) of a setting tool, has a cylindrical section (10a) followed by a wedge-shaped section (10) extending toward the trailing end of the driving piston (8) and with a wedge-shaped surface (18) inclined inwardly towards the piston central axis (16). At least one braking element (23), presses against the cylindrical section (10a) in the ready-to-fire position of the driving piston (8) and a pressure force on the driving piston (8) reduces when the braking element (23) on movement of the driving piston (8) in the forward direction of travel, comes to rest opposite the wedge-shaped surface (18). When this is done, the driving piston can be guided smoothly and returned under braking into its ready-to-fire position, and held there securely.

Abstract: A method of controlling operation of a portable, combustion-engined tool including a combustion chamber (1) an inlet/outlet valve (26) of which is closed or is opened dependent on an operational phase of the tool, with the method including igniting a fuel gas mixture filling the combustion chamber (1) for build-up of gas pressure therein and closing or opening the inlet/outlet valves (26) dependent on the gas pressure developed in the combustion chamber (1), and a tool in which the method is implemented.

Abstract: A method of controlling operation of a portable, combustion-engined tool including a combustion chamber (1) an inlet/outlet valve (26) of which is closed or is opened dependent on an operational phase of the tool, with the method including igniting a fuel gas mixture filling the combustion chamber (1) for build-up of gas pressure therein and closing or opening the inlet/outlet valves (26) dependent on the gas pressure developed in the combustion chamber (1), and a tool in which the method is implemented.

Abstract: A cartridge magazine displacement mechanism for a charge-operated setting tool and including a spring-biased transfer member (13) pivotable about a first pivot (15), cooperating with the trigger (6) and displaceable substantially parallel to an actuation direction of the trigger (6), a spring-biased, one-arm displacement lever (7) cooperating with a free end of the transfer member (13), pivotable about a second pivot (8) fixedly secured in the setting tool housing, and having an engaging dog (12) provided at a free end of the displacement lever displaceable substantially parallel to a longitudinal extent of the cartridge channel of the setting tool, and engageable in or liftable off the cartridge channel, with the first pivot (15) being arranged on the displacement lever (7) between the second pivot and the engaging dog.