Abstract: A setting tool for driving fastening elements includes a piston device (30) for the setting piston (20) and arranged in a setting direction end region of the hollow chamber (14) of the piston guide (13), with the piston stop device (30) having a stop member (32) adjoining the hollow chamber (14) in the setting direction and including a leadthrough (33) having an inner conical active surface (34) that cooperates with the conical active surface (24) of the setting piston (20), and with at least one of the active conical surface (24) and the active conical surface (34) being provided with a friction-reducing coating (35).

Abstract: The invention relates to a combustion-driven setting tool for fastening elements having a housing (1), a piston guiding cylinder (22), which is displaceably mounted in the unit housing in the cylinder longitudinal direction, a piston (21) guided in the piston guiding cylinder (22) for driving a fastening element (13) into a receiving material (18), a receiving assembly (12) situated coaxial to the piston guiding cylinder (22) for the fastening element (13), as seen in the driving direction, lies in front of the piston guiding cylinder (22) and is displaceable relative to same; an elastic adjusting assembly (30), which constantly tends to separate receiving assembly (12) and the piston guiding cylinder (22) from each other; and a piston mounting (31), which is attached to the on the end of the receiving assembly (12) facing towards the piston guiding cylinder (22).

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: An explosion-power operated setting tool for driving fastening elements in a structural component includes a setting piston (15) displaceably arranged in the guide chamber (14) of a piston guide (13) arranged, at least partially, in the tool housing (11), a resetting device (30) having a resetting member (31) for returning the setting piston (15) in its initial position (25) after completion of a setting process, and a spring (35) for resiliently biasing the resetting member (31) in a direction of its initial position, and a damping device (40) for the spring (35).

Abstract: An explosion power-operated setting tool includes a setting piston (15) for driving in fastening elements in constructional components, and a resetting device (30) having a lever-shaped resetting member (31) for returning the setting piston (15) from its end position (26) into its initial position (25), a bearing section (43) for supporting the lever-shaped resetting member (31), and a damping member (43) for damping the lever-shaped resetting member (31) upon the resetting member (31) impacting the bearing section (43), with the damping member (44) having a bearing surface (46) which the rear surface (36) of the lever-shaped resetting member (31) abuts and which has a profile substantially corresponding to a profile of the rear surface (36) of the lever-shaped resetting member (31).

Abstract: A setting tool for driving fastening elements includes a piston device (30) for the setting piston (20) and arranged in a setting direction end region of the hollow chamber (14) of the piston guide (13), with the piston stop device (30) having a stop member (32) adjoining the hollow chamber (14) in the setting direction and including a leadthrough (33) having an inner conical active surface (34) that cooperates with the conical active surface (24) of the setting piston (20), and with at least one of the active conical surface (24) and the active conical surface (34) being provided with a friction-reducing coating (35).

Abstract: A setting device (10) drives fastening elements into a receiving material and includes a housing (11) with a piston guide (13) arranged in the housing (11) and with a hollow space (14) in which a setting piston (15) is displaceably mounted. A bolt guide (16) is connected to the piston guide (13) by an interface (17). The setting device further has a piston restoring device (20) with an adjusting member (21) which engages in the piston guide (13) in a work position and is moved out of the piston guide (13) into a release position (24). Further, there is a securing element (30), with the adjusting member (21) being held in the work position (23) in a first position (33) of the securing element (30) and the adjusting member (21) being released to move into the release position (24) in the second position (34) of the securing element (30).

Abstract: The invention relates to a combustion-driven setting tool for fastening elements having a housing (1), a piston guiding cylinder (22), which is displaceably mounted in the unit housing in the cylinder longitudinal direction, a piston (21) guided in the piston guiding cylinder (22) for driving a fastening element (13) into a receiving material (18), a receiving assembly (12) situated coaxial to the piston guiding cylinder (22) for the fastening element (13), as seen in the driving direction, lies in front of the piston guiding cylinder (22) and is displaceable relative to same; an elastic adjusting assembly (30), which constantly tends to separate receiving assembly (12) and the piston guiding cylinder (22) from each other; and a piston mounting (31), which is attached to the on the end of the receiving assembly (12) facing towards the piston guiding cylinder (22).

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 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.