Abstract: The fastening tool comprises a system for controlling the intake of a fuel into a combustion chamber, a source of fuel, a switch for igniting said fuel in said combustion chamber. A valve, normally closed, comprises an intake port arranged for communicating with said source of fuel and an exhaust port arranged for communicating with said combustion chamber. The valve is a piezoelectric injector arranged for pressurizing the fuel at the outlet thereof and thereby micronizing it. This invention applies well to nailing machines.

Abstract: A self-expanding and self-undercutting guard rail bolt includes a dowel having a guard rail fastening end and a ring. The fastening end is configured to be driven in rotation, and the ring is configured to rigidly connect to a first screwing end of the dowel by an incipient fracture portion. The self-expanding and self-undercutting guard rail bolt further includes a counter-dowel screwed to the dowel by a second screwing end. The counter-dowel includes an expansion cone, and an anti-rotation head having at least one edge which projects beyond a periphery of the dowel to prevent rotation of the counter-dowel about an axis of the guard rail bolt.

Abstract: A device for identifying a gas cartridge connectable to a gas-powered fastening apparatus via a valve includes a solenoid for both opening/closing the valve and for defining an antenna for wireless communication with an electronic label that is located on the cartridge and identifies the cartridge.

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 fastening apparatus for fastening elements includes a combustion chamber, a housing for a gas cartridge, means for injecting gas from a cartridge into the combustion chamber and a management module. An engine thermistor is provided to be subjected to the temperature of the chamber, as well as a second cartridge thermistor intended to be subjected to the temperature of the gas cartridge disposed in the cartridge housing. Both thermistors are mounted for transmitting their temperature information to the management module. The management module is operable for managing temperature information and determining the opening time of the injection means.

Abstract: An indirect fire device for fixing fasteners in a substrate material includes a piston for driving a fastener movably mounted in a barrel and a plug guide for guiding a fastener towards the substrate material. The device is adapted to receive a magazine for receiving a strip of fasteners in order to introduce the fasteners one by one into the plug guide. Each fastener is held in a sleeve comprising bridges for connection to another sleeve. The plug guide of the device includes a zone having an enlarged circular section at the opening of the magazine leading into the plug guide, extending axially over the length of a sleeve increased by the stroke of the plug guide for loading the device.

Abstract: A self-expanding and self-undercutting guard rail bolt includes a dowel having a guard rail fastening end and a ring. The fastening end is configured to be driven in rotation, and the ring is configured to rigidly connect to a first screwing end of the dowel by an incipient fracture portion. The self-expanding and self-undercutting guard rail bolt further includes a counter-dowel screwed to the dowel by a second screwing end. The counter-dowel includes an expansion cone, and an anti-rotation head having at least one edge which projects beyond a periphery of the dowel to prevent rotation of the counter-dowel about an axis of the guard rail bolt.

Abstract: The assembly comprises a fuel cartridge, for driving fastening elements in an internal combustion engine hand tool, and at least an abacus relative to a fuel of a plurality of curves representing the pressure of said fuel as a function of the temperature thereof and relating to a same plurality of filling rates of said fuel in the cartridge. The cartridge comprises a pressure sensor adapted for measuring the fuel pressure in the cartridge. The fastening tool comprises, between a transferring device and the housing of the cartridge, a pressure sensor adapted for measuring the fuel pressure.

Abstract: The system is intended to block the tool operation for an operator holding a badge the authorized working time of which is over. The system comprises: the operator badge, comprising a storage memory for the working time carried out by the operator and a communication unit; the tool, comprising an accelerometric sensor and a housing for control and vibratory traceability comprising a communication module, arranged to exchange data with the operator badge and means for blocking the tool operation. For the vibratory charge traceability of the tool, in the tool, the accelerations experienced by the tool while operating and its corresponding working times, forming traceability data, are measured; the traceability data in the tool are saved; the traceability data are transmitted to an operator personal badge.

Abstract: The tool comprises an engine for propelling a piston including a shaft for driving a fastening member into a supporting material and through a pin guide, with means for adjusting the depth of drive of the piston shaft outside the pin guide at the end of the propulsion and at the stop of the piston in abutment against stop means. The pin guide is mounted free in translation and the depth of drive adjusting means comprise an adjustment knurl with a knurl shaft arranged so as to be in abutment against the pin guide and to push the pin guide forwards under the rotation action of the knurl.

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 housing is intended to receive a source introduced by means of its head and pushed into a position ensuring good transmission of energy. The housing includes a mechanism for converting a transverse movement towards the interior of the housing imparted by a pusher element of the mechanism accessible from the exterior of the housing into an orthogonal movement for ejection of the source.

Abstract: A fixing tool including a nose adapted to receive, on the one hand, a fixing element from a fixing element magazine fixed to the nose and, on the other hand, a fixing element driving piston, propelled by an energy source, a sensor for operating the tool being arranged on the nose, wherein the sensor includes a flexible blade arranged on a biasing pad.

Abstract: In the assembly of the invention, the assembly includes adapter means designed to connect the transmission member and the energy source and to ensure good transmission of energy between them. The adapter means comprise means for locking the energy source in rotation in the device and means for the angular indexing of the source in the position in which it is locked in rotation in the device. The invention is very suitable for gas fastening devices.

Abstract: The sealing connector ensures sealing between a gas cartridge having an outlet fitting and a transmission member for filling a combustion chamber of a gas fastening device having an inlet fitting with gas and includes two internal sealing sleeves for receiving the two fittings, at least one of which is made of flexible material, with, at the bottom of this sleeve, a flexible transverse annular partition for dimensional adjustment, and an external slide. A rigid transverse annular partition is provided at the bottom of the other of the two sleeves to serve as a support for a fitting.

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 fastening system includes a base plate for receiving a fastening plug, the fastening plug having a shank and a head and the base plate includes a conduit for guiding and damping the shank of the plug. The base plate further includes a damping cup that is intended to house the head of the plug and the conduit following compression by the head of the plug, once the fastening plug has been driven through the base plate. The cup and the conduit are designed in such a manner that cooperation between the plug shank and the conduit causes the cup to at least partially cover the head of the plug when the plug is driven through the base plate.

Abstract: The tool comprises an assembly of a tip-guide and a shear unit, on which can be fastened a charger of fastening elements. The fastening elements are introduced in the bore of the tip-guide through a passing window provided in the shear unit. The tool comprises a pivoting flap for adjusting the effective length of the passing window to the length of the fastening elements to be driven. The flap is pivotally mounted about an axis substantially parallel to the tip-guide bore and is adapted to provide a guiding surface for the shortest fastening elements before they enter the partially plugged passing window. With the invention, the short elements can neither rock the tool nor jam it.

Abstract: The tool includes a cylinder inside of which is slidably mounted a piston for driving a fastening element, as a result of the explosion inside of a combustion chamber of a mixture of gas and air that has been injected therein from a gas cartridge, after which the tool has come to bear weight against a support, the head switch has retracted and the combustion chamber has closed, followed by actuation of the trigger switch for controlling the spark plug. The tool also includes an element for determining the rate of fire which includes a real-time clock designed to cooperate with a microcontroller of an operating and control module. The arrangement applies well to fastening tools.

Abstract: The suspension plate is divided into a plurality of adjacent functional portions (2, 13, 24), including a fixing portion (2), the said portions each being separated from another by a bending zone (10, 15) to be folded back in pairs one towards the other. One of the bending zones (10) is weakened by at least one notch (11, 12) for reception of a flexible strand (25). The invention is applied, in particular, to the suspension of false ceilings.