Abstract: A staple strip having a plurality of staples connected together for fastening insulating panels to wooden supports, wherein each of the staples has a crown and two legs disposed parallel to each other, connected to the crown, the length of the legs is at least three time as long as the width of the crown, each leg has a cylindrical section and an end section, and each end section tapers with increasing distance from the cylindrical section, and converges tapered to a point disposed on a center longitudinal axis of the respective leg.

Abstract: A fastening clip bar, comprising a plurality of fastening clips arranged parallel to each other, an adhesive joining the fastening clips with each other, and at least one elastic tape extending over the fastening clips which is glued together with the same.

Abstract: The present invention is directed to a fastener device that includes a base portion. At least one shank is coupled to the base portion. The at least one shank includes an end configured to be driven into a material. The at least one shank also includes a weakened shank region disposed between a first adjacent shank region and a second adjacent shank region. The weakened shank region includes a cross-section irregularly weakened with respect to the cross-sections of the first adjacent shank region and the second adjacent shank region.

Abstract: A tacker for a fastener, with which a tacking plunger is drivable by a drive unit and expels the fastener via a muzzle tool, with a switch device comprising a switch plunger, for actuating the drive unit which has a pivotably mounted release lever for actuating the switch plunger, with a contact feeler which can be actuated on placing onto a subject, which is movably mounted on the muzzle tool and which is pretensioned by a spring into the idle position in which it protrudes beyond the muzzle tool, and with a safety device which is arranged between the contact feeler and the switch device and which has a transmission device, for preventing a release of the drive unit when the contact feeler is in its idle position, said safety device comprising a slide element which is movably mounted on the side of the release lever directed towards the switch plunger and which is coupled to the transmission device and is movable with the release lever relative to the transmission device so that in the idle position of the c

Abstract: The invention relates to a driving tool for fastener elements, wherein a tool casing includes a valve cavity of a main valve closed by a casing cover, a valve piston being sealingly and slidingly mounted coaxially within the valve cavity about a work cylinder, the valve piston when in a lower position sealingly engaging upon an upper edge of the work cylinder so as to close an inlet passage communicating with a pressure air source and opening into an upper work space of the work cylinder, and the valve piston when in an upper position closing an outlet passage, which communicates with the work space via a throughbore of the valve piston, by sealingly engaging a valve seat element, the valve piston having a lower work surface which is continuously subjected to pressure of the pressure air source, and an upper work surface adapted to be selectively subjected to atmospheric pressure or pressure of the pressure air source by a control valve, the improvement of which is characterized by the valve piston having axi

Abstract: The invention relates to a driving tool for fastener elements, comprising a casing (1), a working cylinder (3) located in the said casing, and a main valve coaxially mounted atop the said working cylinder, the said main valve comprising a valve chamber (22) located in the said casing (1) and closed by a cap (24), the said main valve further comprising a valve piston (25) which is sealingly and slidably guided in the said valve chamber (22), wherein the valve piston has a lower position in which an inlet passage connected to a source of compressed air is closed with respect to the upper working chamber of the said working cylinder and which valve piston has an upper position in which an outlet passage (43,47,48) which is connected to the working chamber via a throughbore (29,30) of the valve piston is closed by sealingly engaging a valve seat element (34), wherein the valve piston further includes a lower surface area which is continuously subjected to the pressure of the source of compressed air and a further

Abstract: The present invention relates to a sealing device for the driver member of a pneumatically operated driving tool for fasteners. It comprises a working cylinder, a working piston slidably arranged in said working cylinder for movement between an upper and a lower dead center, a resilient stop member defining the lower dead center of the working piston movement, a driving member secured to said working piston and extending through an opening of said stop member, a control valve actuated by a trigger to alternatively connect a cylinder space above said working piston with a source of compressed air and to atmosphere, and a piston return space in communication with a cylinder space below said working piston.

Abstract: A pneumatically operated driving tool having an improved release locking function having a working cylinder, a drive-in tappet mounted on the working piston, a control valve array for moving the piston to the lower dead center and to the upper dead center, and a piston return chamber which is connected to the working cylinder via a first opening adjacent to the lower dead center and via a second opening spaced apart from the lower dead center. The driving tool further includes a mouth tool having a drive-in channel, a magazine having an opening adjacent to the mouth tool, a sensor comprising a slidable sensor head, a sensor slide portion connected to the sensor head and an abutment portion extending transversely to the sensor slide portion's direction of displacement.

Abstract: Control valve means for a driving tool operated with compressed air for the driving of fasteners into workpieces. Through a specific design of the main and the auxiliary valve and through a connection to the piston return chamber the control of the valves are brought into synchronization with the movement of the working piston. By this, high repetition frequencies can be achieved. Further, in the mode "automatic operation" also single shot operation is possible.

Abstract: Pneumatically operated driving tool for fasteners comprising a working cylinder, a working piston within the working cylinder connected to a driver of the like, a stop in the working cylinder limiting the working stroke of the working piston, a control valve adapted to be actuated by a trigger, a working space above the working piston when the piston is in its upper dead point position, the control valve being adapted to alternatingly connecting the working space with a pressurized air source or with atmosphere, respectively, a piston return chamber surrounding the working cylinder and connected thereto by a first opening adjacent the stop, and a second opening spaced from the stop, the working piston having a smaller diameter than the working cylinder. An annular piston is sealingly displaceably located on the driver and sealingly engages the wall of the working cylinder.

Abstract: A magazine for a power-driven drive-in apparatus for the accommodation of pins or nails, especially headless nails or pins, comprising a guiding channel the roof wall of which is adapted to assume different heights vis-a-vis the bottom wall for adaptation to the lengths of the pins or nails. A side wall of the guiding channel is formed by at least one longitudinal surface of a lamination which is supported in the upper region of the guiding channel to be capable of limited movement along an axis transverse to the longitudinal axis of the guiding channel and is biased by a spring in a direction towards the other side wall.

Abstract: A valve arrangement for a compressed-air operated nailing apparatus with valve pistons operating without intersection in such a manner that the one valve piston cooperates with the working cylinder and is guided by the other working piston which is controlled by an auxiliary control valve, wherein the first auxiliary piston is also controlled at the same time, and wherein upon opening the valve arrangement the second valve piston is moved first into the opening position and the first valve pistion thereafter.

Abstract: The present invention relates to a sound-dampened driving apparatus for fasteners wherein a main valve means is arranged above a working cylinder of the apparatus and movable within a cylindrical bore. When the main valve means is in its lower at rest position, the main valve means separates the working cylinder from a source of compressed air and connects the cylinder to the atmosphere. When the main valve means is in its upper actuating position, the working cylinder is connected to the source of compressed air and the valve means blocks the cylinder connection to the atmosphere. The space above the main valve member within the cylindrical bore is capable of being alternately connected to either the atmosphere or compressed air, and includes a sound dampening means arranged in the space above the main valve member.

Abstract: The present invention relates to a sound-dampened driving apparatus for fasteners wherein a main valve member is arranged above a working cylinder of the apparatus and movable within a cylindrical bore. When the main valve member is in its lower at rest position, the main valve member separates the working cylinder from a source of compressed air and connects the cylinder to the atmosphere. When the main valve member is in its upper actuating position, the working cylinder is connected to the source of compressed air and the valve member blocks the cylinder connection to the atmosphere. The space above the main valve member within the cylindrical bore is capable of being alternately connected to either the atmosphere or compressed air, and includes a sound dampening means arranged in the space above the main valve member.

Abstract: The present invention relates to a safety release mechanism for use with a power operated driving apparatus for fasteners which includes a pivotally supported trigger or release lever housing for actuating or releasing the driving apparatus upon engagement with a release pin or switch. The safety release mechanism is supported in the trigger housing between the trigger and the release pin and is biased by a spring to the safety or off position which prevents the trigger lever from engaging the release pin. Upon movement of the safety release member to the actuated or release position, the trigger lever is engageable with the release pin or switch to actuate the power operated driving apparatus.

Abstract: The invention relates to a compressed air-operated fastener driving tool comprising a pilot valve controlled by a manually actuated release lever, a control valve, the pressure bias of which is controlled by the pilot valve and which for its part controls the supply of compressed air to a working cylinder, and a release barrier adapted to be actuated by the workpiece by means of which the actuation of the pilot valve is adapted to be controlled in common with the release lever when placed in its working position.