Abstract: The present disclosure concerns improvements for a gas-powered fixing tool, and particularly a combustion chamber or precombustion chamber for a gas-powered fixing tool, a working chamber for a gas-powered fixing tool, a fuel gas injection device for a gas-powered fixing tool and a gas-powered fixing tool including one or more of these elements.

Abstract: Various embodiments of the present disclosure provide a gas-powered fastener-driving tool. In one embodiment, the tool includes a combustion or precombustion chamber a valve comprising a body that is mobile within the combustion or precombustion chamber between a first closed position and a second open position. The body defines two opposing orifices at longitudinal ends of the body. The orifices form part of a bore defined through the body that enables gas to pass through the valve. This makes it possible to limit the pressure drops as gas is being admitted to or exhausted from the chamber, thus making it possible to optimize the duration of the firing cycle of the tool.

Abstract: Gas fixing tool, including at least one combustion chamber, a trigger, a device for injecting fuel into the at least one chamber, a member for actuating the device, and a bearing member intended to be brought to bear on a support material, characterized in that it further comprises a safety member configured to cooperate on the one hand with the actuating member and on the other hand with the trigger, so that the trigger is locked in its first position when the actuating member is in a first position.

Abstract: Various embodiments of the present disclosure provide a fuel cartridge for a gas-powered fastener-driving tool. In one embodiment, the fuel cartridge comprises a body that has a longitudinal axis and that defines an internal fuel storage cavity. The body is shaped and sized to be inserted at least partially into and removed from a housing defined by a case of the tool via translation along the longitudinal axis. The cartridge also includes a connection and fuel dispensing end fitting connected to the body and sized and shaped to engage an end fitting of the tool within the housing. The cartridge also includes a first cam surface extending at least partially around the longitudinal axis and configured to, during relative rotation of the first cam surface and a second cam surface, engage the second cam surface to facilitate removal of the fuel cartridge from the housing.

Abstract: Various embodiments of the present disclosure provide a gas-powered fixing tool including a working chamber, a piston slidably mounted in the working chamber, a precombustion chamber in which gas combustion is to be initiated, and a combustion chamber between the precombustion chamber and the working chamber. The precombustion and combustion chambers are separated by a flap that is movable between a position in which the precombustion and combustion chambers are in fluid communication and a position these chambers are not in fluid communication. The tool also comprises a combusted gas evacuation valve. The tool also comprises means for fluidic communication between the precombustion and combustion chambers. The means are configured to be activated after a start of displacement of the piston from a rest position to a working position, and before actuation of the valve for evacuation of combusted gas to the outside of the precombustion and/or combustion chamber.

Abstract: The present disclosure concerns a method and an electronic ignition control device of a combustion chamber of a gas-powered fixing tool designed to optimize the quality of the shooting of fixation elements by the tool. According to the principle of the present disclosure, the triggering of the ignition of the chamber to produce the shot is commanded on the condition that the time between the moment when the user places the tool against a work surface and the moment when he pulls on an actuation trigger of the tool is greater than a predefined delay time, to ensure an optimal filling of the combustion chamber with the combustible gas. According to one embodiment of the present disclosure, the triggering of the ignition is enabled on the supplemental condition that a signal of medium ignition voltage is greater than a trigger threshold voltage.

Abstract: An indirect firing fastening tool with an anti-firing trigger support. The tool comprises, in one case, an axially movable equipment with a tip guide projecting from the case to drive a fastening member into a support material, a reception housing for a fastener charger and anti-firing safety means to prevent the recoil of the tip guide. Advantageously, an anti-firing trigger support is mounted on said reception housing to convert the tool into a mono-firing tool, the trigger being arranged to cooperate with the anti-firing safety means so as to remove them and authorize firing.

Abstract: The present disclosure concerns improvements for a gas-powered fixing tool, and particularly a combustion chamber or precombustion chamber for a gas-powered fixing tool, a working chamber for a gas-powered fixing tool, a fuel gas injection device for a gas-powered fixing tool and a gas-powered fixing tool including one or more of these elements.

Abstract: Various embodiments of the present disclosure provide a gas-powered fixing tool including a working chamber, a piston slidably mounted in the working chamber, a precombustion chamber in which gas combustion is to be initiated, and a combustion chamber between the precombustion chamber and the working chamber. The precombustion and combustion chambers are separated by a flap that is movable between a position in which the precombustion and combustion chambers are in fluid communication and a position these chambers are not in fluid communication. The tool also comprises a combusted gas evacuation valve. The tool also comprises means for fluidic communication between the precombustion and combustion chambers. The means are configured to be activated after a start of displacement of the piston from a rest position to a working position, and before actuation of the valve for evacuation of combusted gas to the outside of the precombustion and/or combustion chamber.

Abstract: Gas fixing tool, including at least one combustion chamber, a trigger, a device for injecting fuel into the at least one chamber, a member for actuating the device, and a bearing member intended to be brought to bear on a support material, characterized in that it further comprises a safety member configured to cooperate on the one hand with the actuating member and on the other hand with the trigger, so that the trigger is locked in its first position when the actuating member is in a first position.

Abstract: Various embodiments of the present disclosure provide a fuel cartridge for a gas-powered fastener-driving tool. In one embodiment, the fuel cartridge comprises a body that has a longitudinal axis and that defines an internal fuel storage cavity. The body is shaped and sized to be inserted at least partially into and removed from a housing defined by a case of the tool via translation along the longitudinal axis. The cartridge also includes a connection and fuel dispensing end fitting connected to the body and sized and shaped to engage an end fitting of the tool within the housing. The cartridge also includes a first cam surface extending at least partially around the longitudinal axis and configured to, during relative rotation of the first cam surface and a second cam surface, engage the second cam surface to facilitate removal of the fuel cartridge from the housing.

Abstract: Various embodiments of the present disclosure provide a gas-powered fastener-driving tool. In one embodiment, the tool includes a combustion or precombustion chamber a valve comprising a body that is mobile within the combustion or precombustion chamber between a first closed position and a second open position. The body defines two opposing orifices at longitudinal ends of the body. The orifices form part of a bore defined through the body that enables gas to pass through the valve. This makes it possible to limit the pressure drops as gas is being admitted to or exhausted from the chamber, thus making it possible to optimize the duration of the firing cycle of the tool.

Abstract: The present disclosure concerns a method and an electronic ignition control device of a combustion chamber of a gas-powered fixing tool designed to optimize the quality of the shooting of fixation elements by the tool. According to the principle of the present disclosure, the triggering of the ignition of the chamber to produce the shot is commanded on the condition that the time between the moment when the user places the tool against a work surface and the moment when he pulls on an actuation trigger of the tool is greater than a predefined delay time, to ensure an optimal filling of the combustion chamber with the combustible gas. According to one embodiment of the present disclosure, the triggering of the ignition is enabled on the supplemental condition that a signal of medium ignition voltage is greater than a trigger threshold voltage.

Abstract: The pole comprises a securing end, with device securing means and the device actuating means, a gripping end to be gripped by an operator and telecontrolling means for telecontrolling the actuating means. The actuating means are arranged in the device securing means and are directly controlled by the securing end of the pole and thus telecontrolled by the pole and its gripping end under the action of a thrust of the pole towards the support material. The device actuating means comprise safety means arranged to avoid by gravity the control of the actuating means by the securing end of the pole when the spatial position of the pole is inappropriate. The invention also relates to an anchoring device provided with the same safety means.

Abstract: An indirect firing fastening tool with an anti-firing trigger support. The tool comprises, in one case, an axially movable equipment with a tip guide projecting from the case to drive a fastening member into a support material, a reception housing for a fastener charger and anti-firing safety means to prevent the recoil of the tip guide. Advantageously, an anti-firing trigger support is mounted on said reception housing to convert the tool into a mono-firing tool, the trigger being arranged to cooperate with the anti-firing safety means so as to remove them and authorize firing.

Abstract: The plug guide comprises a bore for receiving a nail comprising a head and a shaft onto which a skirt is slid, the bore having a passing section determined so that the head and the skirt of the nail cause it to be guided therein, a recess being provided in the front part of the plug guide for ejecting and expanding the guiding skirt. The recess comprises at least one radial bulge projecting inside, for extending the wall of the bore of the plug guide and forming a narrowing for guiding the nail. This invention further relates to a fastening device comprising the plug guide.

Abstract: The tool is to be used for driving fastening members into a supporting material. It comprises a cylinder (3), with a piston (5), a combustion chamber (1, 11), a cylinder head (12) bearing a fuel igniting means (36) in the chamber (1), a pin guide (9), for receiving a fastening member and the piston (5) shaft (7) and a cage (21). Return means are provided for opening the chamber (11), driving the pin guide (9) forwardly, opening and closing abutment means for the chamber (11). There are provided: one single central spring (32) for opening the chamber (11) and, on each side of the tool, one single opening and closing side chamber abutment (18, 55), integral with the chamber (11) and mobile in translation on the corresponding side of the cylinder (3).

Abstract: The adapter comprises a central tubular body extending on one side with an abutment and fixing base on the cartridge and, on the other side, with two fixing legs on an intermediary nose piece of the transmission and filling member able to be hinged for ensuring the fixing operation, disconnecting and ejecting wings being additionally provided. The disconnecting and ejecting wings are arranged for opening the fixing legs before driving them into translation.

Abstract: A gas setting tool, wasting a limited amount of fuel. The tool comprises i) an internal combustion engine, with a device for injecting fuel in the chamber of the engine, comprising a check valve and an injection piston, the injection piston extending beyond the check valve, and iii) a sealing joint mounted on the injection piston of the check valve. The injection piston comprises an internal bore opened on the exterior and the check valve and its injection piston are arranged so that, in an opening position, the fuel in a container is able, outside the check valve, to only flow through the internal bore of the injection piston. Thanks to this invention, fuel waste is reduced to the best.

Abstract: The appliance comprises a piston mounted in a cylinder of an internal combustion engine and forming, with a cylinder head, a combustion chamber in which there is disposed a mixing, emptying and cooling fan associated with an electric drive motor (8) connected to an electronic management module and to a supply battery. It also comprises, close to the fan motor (8), a thermistor (12) sensitive to the temperature provided for transmitting the temperature information to the management module.