A driving tool, comprising a handheld housing with a piston accommodated therein for transmitting energy to a fastening element to be driven in, a propellant charge for generating a gas pressure, a placing member that is able to be pressed against a workpiece, an in particular movable breech face for absorbing a recoil, and an ignition hammer that is movable relative to the breech face, wherein the ignition hammer is accelerated by means of at least one first spring against an igniter of the propellant charge, and wherein the spring is held in a tensioned state by a controllable holding member before the ignition hammer is accelerated, wherein the first spring is moved back into the held and tensioned state by the gas pressure after an ignition operation.

The invention relates to a drive-in device, comprising a hand-held housing having a piston element received therein for transmitting energy onto a fastening element to be driven in, an exchangeable propellant charge, a combustion chamber, arranged between the propellant charge and the piston element and extending about a center axis (A), and a control element by means of which a starting position of the piston element can be set to be modified in order to modify the energy transmitted by the propellant charge onto the piston element, the control element having an operating element that can be pivoted about the center axis (A).

The invention relates to a driving device comprising a hand-held housing in which there is accommodated a piston member for transmitting energy to a fastening element to be driven in, an interchangeable propellant and a combustion chamber arranged between the propellant and the piston member, said combustion chamber extending preferably about a central axis (A), and an actuator by means of which the energy that is transmissible from the propellant to the piston member is variable in a settable manner, wherein a discharge channel connected to the combustion chamber can be opened by means of a movable slide of the actuator, wherein a starting position of the piston member is variable in a settable manner by means of a second actuator.

A powder-actuated tool includes a barrel assembly, a housing, a firing pin device, and a piston assembly. The barrel assembly includes an outer tube, an inner tube movably extending into the outer tube, and a powder chamber. The piston assembly includes a pushing rod and a sleeve member sleeved on the pushing rod in a form-fitting manner. The pushing rod has a main body, a tail section having an outer diameter greater than that of the main body, and a shoulder section connected between the main body and the tail section. The powder-actuated tool further includes a bonding material connected between the pushing rod and the sleeve member.

Gas-operated fixing tool including a working chamber, a piston mounted slideably in the working chamber and comprising a driving rod of which a first longitudinal end is configured to drive a fixing element and of which a second longitudinal end is connected to a head which separates the working chamber into a first portion and into a second portion which is traversed by the rod, and at least one combustion chamber in which a mixture of air and fuel is intended to be burnt in order that combustion gases generate a rise in pressure that causes a movement of the piston in the working chamber, wherein the at least one combustion chamber is in fluid communication with the second portion in such a way that the rise in pressure causes the movement and the return of the piston into a rest position ready for firing a fixing element.

Gas-operated fixing tool including a working chamber, a piston mounted slideably in the working chamber and comprising a driving rod of which a first longitudinal end is configured to drive a fixing element and of which a second longitudinal end is connected to a head which separates the working chamber into a first portion and into a second portion which is traversed by the rod, and at least one combustion chamber in which a mixture of air and fuel is intended to be burnt in order that combustion gases generate a rise in pressure that causes a movement of the piston in the working chamber, wherein the at least one combustion chamber is in fluid communication with the second portion in such a way that the rise in pressure causes the movement and the return of the piston into a rest position ready for firing a fixing element.

A driving device is provided comprising a hand-held housing with a piston member arranged therein for transmitting energy to a securing element to be driven in; an interchangeable propellant charge and a combustion chamber arranged between the propellant charge and the piston member, the combustion chamber extending around a central axis (A); and an actuator, by which the energy transmitted by the propellant charge to the piston member can be variably adjusted. The driving device also includes a blow-off channel connected to the combustion chamber that can be exposed by a movable slide of the actuator and the movable slide comprises a body which completely encircles the central axis (A).

A driving device, comprising a hand-held housing with a piston element arranged therein for transmission of energy to a fastening element to be driven in a driving direction, a propellant charge, and a combustion chamber, which is arranged between the propellant charge and the piston element and extends around a central axis, and an actuator, by which energy to be transmitted from the propellant charge to the piston element can be varied in such that the energy can be set, wherein the combustion chamber has an internal thread and a cylindrical guiding portion, wherein the actuator is arranged in the combustion chamber and has an external thread in engagement with the internal thread and a bearing for mounting the actuator in the guiding portion, wherein a thread gap spacing between the external and internal threads is greater than a bearing gap spacing between the bearing and the guiding portion.

Gas-operated fixing tool including a working chamber, a piston mounted slideably in the working chamber and comprising a driving rod of which a first longitudinal end is configured to drive a fixing element and of which a second longitudinal end is connected to a head which separates the working chamber into a first portion and into a second portion which is traversed by the rod, and at least one combustion chamber in which a mixture of air and fuel is intended to be burnt in order that combustion gases generate a rise in pressure that causes a movement of the piston in the working chamber, wherein the at least one combustion chamber is in fluid communication with the second portion in such a way that the rise in pressure causes the movement and the return of the piston into a rest position ready for firing a fixing element.

Gas-operated fixing tool including a working chamber, a piston mounted slideably in the working chamber and comprising a driving rod of which a first longitudinal end is configured to drive a fixing element and of which a second longitudinal end is connected to a head which separates the working chamber into a first portion and into a second portion which is traversed by the rod, and at least one combustion chamber in which a mixture of air and fuel is intended to be burnt in order that combustion gases generate a rise in pressure that causes a movement of the piston in the working chamber, wherein the at least one combustion chamber is in fluid communication with the second portion in such a way that the rise in pressure causes the movement and the return of the piston into a rest position ready for firing a fixing element.