Abstract: A propellant magazine for a propellant-operated setting tool and including a pocket foil (1, 11, 21) having a plurality of recessed, spaced from each other, pockets (2, 12, 22, 42) for receiving each a propellant (3, 13, 23), a cover foil (5, 15, 25) unreleasably connected with the pocket foil (1, 11, 21) for closing the pockets (2, 12, 22), and an electrically conducting strip (7, 17, 27, 37) associated with each pocket (2, 12, 22, 42) and having at least one contact point (8, 9, 18, 19, 28, 29, 31, 32, 38, 39).

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: The present invention relates to a propellant charge magazine for setting tools and a setting tool for driving fasteners into a substrate. The propellant charge magazine of the invention comprises a housing (24) with an internal housing space for receiving a magazine strip with propellant charges (22). At least one output opening (26) for inserting and extracting the magazine strip (21) is arranged on the housing. A first space (27) for receiving a rolled up magazine strip (21) is provided on the propellant charge magazine (20) and a second space (28) in contact with the first space (27) via an opening (29) and for accommodating part (31) of the magazine strip (21) that is re-introduced into the propellant charge magazine (20) is provided on the propellant charge magazine (20).

Abstract: A combustion-operated working tool having a housing body (1), which has a cylindrical recess (5) and a piston chamber (2) connecting therewith for receiving a piston (3); an impact plate (8), which is arranged opposite to and at a distance to the cylindrical recess (5) and which can be displaced towards and away from the housing body (1), and a packing sleeve (12) arranged inside and elastically mounted, projecting out of the cylindrical recess (5).

Abstract: An explosion-operated power tool including a housing (1) having a cylindrical cavity (5) and a piston chamber (2) for receiving a drive piston (3) and communicating with the cavity (5), a breech bottom (8) located opposite the cavity (5) and fixedly secured at a predetermined distance from the housing (1), and a sealing sleeve (12) located in the cavity (5) of the housing (1) and displaceable axially away from the breech bottom (8) and toward the breech bottom (8) for enabling, respectively, a sidewise feeding of a catridge (10) for positioning the catridge between the breech bottom and the sealing sleeve (12) and for securing the catridge between the breech bottom (8) and the sealing sleeve (12).

Abstract: The present invention relates to a cartridge(10), in particular for a setting tool, comprising a sleeve member (11) and a sleeve cover (13), which form the jacket surface (13), and a bottom side (16) and a face side (15). Intended break zones (20) are arranged on the cartridge (10) surface to be opened, wherein the intended break zones are opened by the explosive pressure of a propellant charge (12) situated inside the cartridge (10). For the improvement of such cartridges (10), the intended break zone (20) is formed by weakened zones (21) extending from a center (22, 22′) and therefrom forming the shape of a star. The invention also relates to a device for firing a propellant charge situated within a cartridge, in particular for setting tools.

Abstract: The present invention relates to a propellant charge magazine for setting tools and a setting tool for driving fasteners into a substrate. The propellant charge magazine of the invention comprises a housing (24) with an internal housing space for receiving a magazine strip with propellant charges (22). At least one output opening (26) for inserting and extracting the magazine strip (21) is arranged on the housing. A first space (27) for receiving a rolled up magazine strip (21) is provided on the propellant charge magazine (20) and a second space (28) in contact with the first space (27) via an opening (29) and for accommodating part (31) of the magazine strip (21) that is re-introduced into the propellant charge magazine (20) is provided on the propellant charge magazine (20).

Abstract: A holder for a drive piston (8) of a setting tool, and including a return element (19) having a first end (21) that applies pressure to the drive piston (8), and a second end (22) spaced from the first end (21), and axial and radial stop elements (16-18) fixedly securable in the setting tool and against which the second end (22) of the return element (21) is displaceable and elastically deformed upon displacement of the drive piston (8) in the setting direction (20).

Abstract: A propellant magazine for a propellant-operated setting tool and including a pocket foil (1, 11, 21) having a plurality of recessed, spaced from each other, pockets (2, 12, 22, 42) for receiving each a propellant (3, 13, 23), a cover foil (5, 15, 25) unreleasably connected with the pocket foil (1, 11, 21) for closing the pockets (2, 12, 22), and an electrically conducting strip (7, 17, 27, 37) associated with each pocket (2, 12, 22, 42) and having at least one contact point (8, 9, 18, 19, 28, 29, 31, 32, 38, 39).

Abstract: A piston holder for a drive piston of a setting tool and including at least one clamp member (18; 24; 25; 36; 39; 40; 52; 58) that is constantly non-rigidly pressed against a circumference of the drive piston (8), and elements for supporting the at least one clamp member for an eccentric movement in a plane in which a central axis (10a) of the drive piston (8) is located.

Abstract: A piston holder for a drive piston (8) of a setting tool and having a carrier (7) for two expansion legs (22, 23) for frictionally receiving the drive piston (8) therebetween, with the carrier (7) being fixedly secured in the setting tool.

Abstract: A holder for a drive piston (8) of a setting tool, and including a return element (19) having a first end (21) that applies pressure to the drive piston (8), and a second end (22) spaced from the first end (21), and axial and radial stop elements (16-18) fixedly securable in the setting tool and against which the second end (22) of the return element (21) is displaceable and elastically deformed upon displacement of the drive piston (8) in the setting direction (20).

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 holder for a drive piston of a setting tool and including at least one clamp member (18; 24; 25; 36; 39; 40; 52; 58) that is constantly non-rigidly pressed against a circumference of the drive piston (8), and elements for supporting the at least one clamp member for an eccentric movement in a plane in which a central axis (10a) of the drive piston (8) is located.

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 piston holder for a drive piston (8) of a setting tool and having a carrier (7) for two expansion legs (22, 23) for frictionally receiving the drive piston (8) therebetween, with the carrier (7) being fixedly secured in the setting tool.