Abstract: The invention relates to a drive-in device, comprising a drive-in piston, guided in a cylinder, for driving a nail member into a workpiece, and a combustion chamber arranged above the drive-in piston, said combustion chamber being Tillable with a combustion gas, wherein the combustion chamber has a bottom that is adjustable along an axis, wherein the bottom has a groove that extends in the circumferential direction and has an inserted seal which bears in a radial direction against a rigid combustion-chamber wall, wherein a front surface, in the axial direction, of the seal protrudes in the direction of the axis from a terminating plane of the groove.

Abstract: A method and a system for controlling injection processes in liquid fuel-operated setting devices is provided wherein a time-controlled metering device supplies fuel from a fuel tank to a combustion chamber. In order to further improve control of injection processes in the liquid fuel-operated setting devices, a metering time interval of the time-controlled metering device is adapted to the age of the fuel tank.

Abstract: A flywheel-driven setting device comprises a flywheel which can be drivingly connected to a driving element in order for a setting element to be driven into a substrate by means of the driving element during a setting process. The flywheel is subdivided into at least two flywheel parts which are movable relative to each other to a limited degree in the axial direction.

Abstract: A flywheel-driven setting tool comprising a flywheel which can be drivingly connected to a drive-in element by a coupling device in order to drive a securing element into an underlying surface during a setting process using the drive-in element, wherein the drive-in element is accelerated out of a starting position in a setting direction. In order to allow securing elements to be driven into the underlying surface in a consistent manner, the coupling device is paired with an actuator, by which the coupling device can be opened.

Abstract: A flywheel-driven setting device for driving fastening elements into a foundation is disclosed, having a driving element, which can be driven in a setting direction by a flywheel and which is guided between the flywheel, which is rotatable about a flywheel rotation axis, and a counter roller, which is rotatable about a counter roller rotation axis. The flywheel rotation axis is arranged at an angle alpha (?) to the counter roller rotation axis, wherein the angle is not equal to zero.

Abstract: A flywheel-driven setting device for driving securing elements into an underlying surface comprises a drive-in element that can be driven by a flywheel in a setting direction and has a connection region in which the drive-in element can be connected to the flywheel in order to transmit a drive force from the flywheel to the drive-in element. The connection region of the drive-in element comprises at least one frictional connection section for providing a frictional connection and at least one formfitting connection section for providing a formfitting connection between the flywheel and the drive-in element.

Abstract: A flywheel-driven setting device for driving fastening elements into a base comprises at least one flywheel, which is directly driven by an electric motor. The electric motor is designed as a disk motor having at least one disk rotor.

Abstract: A flywheel-driven setting device for driving fastening elements into a subsurface comprises at least one flywheel which is directly driven by an electric motor. The flywheel comprises two internal rotor motors.

Abstract: The invention relates to a highly dynamic electromagnetic drive in the manner of a Thomson coil with soft-magnetic frame, comprising a first excitation coil (30) whose winding height is greater than its length, which hence is flat; a soft-magnetic frame in which the first excitation coil is arranged and against which it abuts, and which in the manner of a pot magnet constitutes an open magnetic circuit which includes an outer region, a bottom and an inner region, and which is open on its end face, wherein the first excitation coil at least partly encloses the inner part of the frame; a short circuit armature preferably formed hollow cylindrical at least on its side facing the first excitation coil, which is movably mounted along an axis and which in its stroke starting position dips into the end-face opening of the frame and thereby at least partly encloses the inner part of the frame, wherein the frame entirely or predominantly is formed of a soft-magnetic composite material or one or more sheet stacks, whic

Abstract: A setting device is provided, comprising a housing, a combustion chamber having an ignition apparatus, a storage container having a container wall for storing fuel, a dosing apparatus for adding a specified volume of fuel to the combustion chamber, an apparatus, such as a firing pin, for inserting a setting element into a setting object, wherein a setting force can be applied to the apparatus as a result of the pressure of combustion gas such that the apparatus is operable by combustion force, a control unit, and a temperature sensor for detecting the temperature of the fuel in the storage container. The setting device is designed such that, while the storage container is connected to the setting device, the temperature sensor mechanically contacts an outer surface of the container wall, for indirect detection of the temperature of the fuel.

Abstract: The invention relates to a drive-in device comprising a drive-in piston guided in a cylinder for driving a nail component into a work piece, a combustion chamber arranged on the drive-in piston, and which can be filled with an incendive gas mixture, a charge component for producing an over-pressure of the gas mixture, and a touch component for recognising a pressing of the drive-in device on a work piece, wherein the combustion chamber is connected to an outer space via a valve component, wherein the valve component is controlled in accordance with a position of the touch component, such that, in the event of a non-ignition, the over-pressure of the gas mixture can escape via the valve component after a removal of the drive-in device.

Abstract: The invention relates to a fuel-operated firing device for driving securing elements into a substrate, comprising at least one main combustion chamber for a fuel, a driving piston that can be driven out of the main combustion chamber in a firing direction by expandable gases, and a pre-chamber with which an ignition device is associated and in which a pressure acting on the main combustion chamber can build up prior to a fuel-air mixture being ignited in said main combustion chamber. In order to improve the efficacy and/or functionality during the driving in of securing elements, a detection system is associated with the driving piston, said detection system being connected to an electronic feedback control device for control purposes, in order to detect an initial position of the driving piston prior to a firing operation.

Abstract: The invention relates to a driving-in device comprising a driving-in piston which is guided in a cylinder for driving a nail element into a workpiece and comprising a combustion chamber which is arranged on the driving-in piston and which can be filled with an ignitable combustion gas mixture. An overpressure of the combustion gas mixture can be generated in the combustion chamber by a charging element, and the driving-in piston is sealed against an inner wall of the cylinder by a first seal during the driving-in movement. The driving-in piston is sealed from the combustion chamber by a second seal, which is loaded axially to a piston axis (A), in a starting position.

Abstract: A combustion-powered placing tool for driving fastening elements into a subsurface comprises a main combustion chamber for a compressible fuel, a driving piston, which in a starting position is retracted, and which can be driven from the main combustion chamber in the placing direction via expandable gases, a prechamber to which an ignition device is assigned, and in which a pressure acting upon the main combustion chamber can be build up prior to ignition of a fuel-air mixture in the main combustion chamber, wherein an additional ignition device is assigned to the main combustion chamber. In order to improve the effectiveness and/or the functionality during driving-in of a fastener, the placing tool comprises a selector device, allowing a selection between a reduced energy operation having an ignition in the main combustion chamber and a high-energy operation having an ignition in the prechamber.

Abstract: The invention relates to a driving-in tool, comprising a driving-in piston, guided in a cylinder, for driving a nail element into a workpiece, and a combustion chamber which is arranged at the driving-in piston and can be filled with an ignitable fuel-gas mixture. A positive pressure of the fuel-gas mixture in the combustion chamber can be generated particularly by means of a charging element. The combustion chamber comprises at least a first sub-housing and a second sub-housing that can be moved in an axial direction relative to the first sub-housing, the two sub-housings being sealed from each other by means of at least one first seal. A contact force can be applied to the seal in the axial direction, said contact force increasing monotonically with the positive pressure in the combustion chamber.

Abstract: The invention relates to a drive-in device, comprising a drive-in piston, guided in a cylinder, for driving a nail member into a workpiece, and a combustion chamber arranged above the drive-in piston, said combustion chamber being Tillable with a combustion gas, wherein the combustion chamber has a bottom that is adjustable along an axis, wherein the bottom has a groove that extends in the circumferential direction and has an inserted seal which bears in a radial direction against a rigid combustion-chamber wall, wherein a front surface, in the axial direction, of the seal protrudes in the direction of the axis from a terminating plane of the groove.

Abstract: The invention relates to a drive-in device comprising a drive-in piston which is guided in a cylinder for driving a nail element into a workpiece and comprising a combustion chamber which is arranged over the drive-in piston and which can be filled with a combustion gas. A movable adjusting rod engages through a feedthrough across an axial length (L) in a housing of the combustion chamber, and a guide gap is formed between the adjusting rod and the feedthrough. A recess is formed on at least one of the adjusting rod or the feedthrough, and a radial distance between the adjusting rod and the feedthrough in the region of the recess is greater than a radial height of the guide gap.

Abstract: The invention relates to a setting tool for fastening elements, comprising a driving piston that can be driven by a primary drive, and comprising a secondary drive. In order to create a lightweight, handy setting tool, the primary drive is combined with the secondary drive in a hybrid drive system for the driving piston in such a way that the driving piston can be driven by both the primary drive and the secondary drive.

Abstract: A fastener driving tool and method for driving fasteners into a substrate is disclosed. The tool includes a working piston that is capable of being moved abruptly translationally by igniting an ignitable mixture in a combustion chamber so as to drive a fastener, such as a stud or a nail. The volume of the combustion chamber is adjustable. In order to further improve the operation and/or energy efficiency of the fastener driving tool, the fastener driving tool also includes a control device which is connected in a control relationship to an adjusting device for adjusting the combustion chamber volume and to a metering valve device for metering fuel gas.

Abstract: A combustion-operated setting tool (10) for driving-in fastening elements includes a setting piston (14) displaceable in a guide cylinder (13), a combustion chamber (15), a fuel inlet (23) opening into the combustion chamber (15) for feeding fuel therein and an ignition element (26) for igniting the fuel in the combustion chamber (15). Both, the fuel inlet (23) and the ignition element (26), are located at the first end (31) of the combustion chamber (15) adjacent to the guide cylinder (13), and a motor-driven ventilator (16) supported on a rear wall (30) of the combustion chamber (15) at the second end (32) of the combustion chamber (15) remote from the guide cylinder (13).