EP0774025A1 - Pyrotechnic tool firing device - Google Patents

Pyrotechnic tool firing device

Info

Publication number
EP0774025A1
EP0774025A1 EP95926425A EP95926425A EP0774025A1 EP 0774025 A1 EP0774025 A1 EP 0774025A1 EP 95926425 A EP95926425 A EP 95926425A EP 95926425 A EP95926425 A EP 95926425A EP 0774025 A1 EP0774025 A1 EP 0774025A1
Authority
EP
European Patent Office
Prior art keywords
projection
tube
pyrotechnic
tool
gas generator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP95926425A
Other languages
German (de)
French (fr)
Other versions
EP0774025B1 (en
Inventor
Bernard Castagner
Jean-Pierre Boyault
Dominique Dufaut
Alain Nguyen
Claude Waitzenegger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0774025A1 publication Critical patent/EP0774025A1/en
Application granted granted Critical
Publication of EP0774025B1 publication Critical patent/EP0774025B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/02—Improving by compacting
    • E02D3/046—Improving by compacting by tamping or vibrating, e.g. with auxiliary watering of the soil
    • E02D3/061—Tampers with directly acting explosion chambers
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
    • E02D7/02—Placing by driving
    • E02D7/06—Power-driven drivers
    • E02D7/12—Drivers with explosion chambers

Definitions

  • the present invention relates to a device for pyrotechnic projection of tools connected to a mobile projection piston inside a launching tube. More particularly, the present invention relates to a pyrotechnic projection device, included in a modular pyrotechnic projection system of tools, using the energy delivered by a gas generator and whose recoil balancing is ensured by the effect gravity on the launch structure.
  • the invention applies even more particularly to a pyrotechnic projection equipment for tools equipped with a piston for a high-speed projection interface from a launch tube in which a combustion pressure is created created by the gases emitted by a gas generator from a propellant powder.
  • EP-A-0 389 375 describes a system for driving anchoring into the ground by using the energy delivered by a gas generator, a system whose recoil balancing is ensured by the effect of gravity on the launch structure which acts as an acoustic protector.
  • EP-A-0 561 968 describes a system for measuring the characteristics of the soil by driving in a probe rod, the speed of which is achieved by the energy delivered by a gas generator and the evolution of which of the speed of penetration into the ground is continuously measured by an electromagnetic assembly. Since the implementation of these anchoring penetration systems and measurement of soil characteristics, other needs of the same type have been expressed by different building trades and public works, in particular needs relating to compaction, coring, digging of point foundations, etc., ...
  • the purpose of the pyrotechnic projection device according to the present invention is precisely to better satisfy these various wishes of the users.
  • the subject of the present invention is a device for pyrotechnic projection of a tool, contained inside a barrel or frame and consisting of a generator of projection gas, associated with a triggering or initiation system, placed in a modular cylinder head connected to a spout or grip, and fixed to one end of a launching tube secured to a ballast mass intended to withstand the recoil effect exerted on the cylinder head during projection and which is connected to one of its SES ex ⁇ hoppers with a damping cylinder interposed between the frame and the ballast mass to absorb the fallout of this ballast mass after its retreat.
  • the gas generator placed in the cylinder head and its trigger system are located outside and at one end of the launch tube which receives the tool through the other end.
  • the launch tube comprises, at its end oppo ⁇ ed to the gas generator, lateral gas ejection vents before the projection piston leaves the launch tube , and these vents open into an annular chamber formed between the outer wall of the launch tube and a cylindrical extension of the frame surrounding the launch tube.
  • the launching tube is internally equipped with a sub-calibrated pull-out tube allowing the use of a piston for projecting tools of smaller diameter.
  • the triggering system of the gas generator consists of a device for striking a primer. It is separated from the cylinder head receiving the gas generator by a vented part capable of ejecting the gases coming from the leaks at the level of the percussion orifice; it is thus possible to avoid fouling of the trigger system.
  • the pyrotechnic projection device comprises a tool loading member consisting of a cable axially passing through the launch tube and connected to a gripper capable of '' be disconnected under the effect of the propelling force acting on the tool's projection piston in the launching tube and a sealing plate serving as a support and stop element during the ascent of the tool in the launch tube and used to control the release of the clamp.
  • the projection piston is capable of being rigidly connected or of being secured to various tools such as plate compactor, punch compactor, coring tube, burial tube, injector, penetrating rod, supporting rod earth cable.
  • the gas generator is placed in a combustion chamber and its launching system is preferably located outside the launching tube and outside the projected tool or its launch piston.
  • a modular cylinder head housing allows, in the same material, the use of gas generators of different diameters and therefore of different masses of propellant powders which are adapted to the energy necessary for the proper functioning of each tool.
  • the gripping handle of the modular cylinder head housing facilitates the introduction and especially the extraction after operation of the gas generator in its combustion chamber.
  • the caliber of the launch tube is adaptable to the diameter of the projected tool or its tool holder thanks to the introduction and locking in position of tubes of smaller diameter inside the launch tube.
  • the launching tube is equipped with lateral vents which make it possible to eject , after the passage of the piston of the tool, gases upwards in the annular chamber which constitutes a silencer inside the frame of the device according to the invention.
  • the launch tube and its ballast structure or ballast mass are free to recede vertically upwards and this recoil ensures, under the effect of gravity, the balance of the amount of movement applied to the piston and to the projected tool.
  • Damping of the fallout of the launch tube and its ballast structure after a tool shot is ensured by a synchronized gas spring which deploys when the launch tube moves back and which thus joins it at the end of its trajectory vertical, and brakes its descent by controlled transfer of gases between the two chambers of the gas spring.
  • the adaptation of the jacking up speed, the retaining force applied to the launching tube and its ballast structure and the return speed of the launching tube and its ballast structure is carried out using calibrated single or double pass vents and cylinder inflation pressure.
  • the percussion triggering system is preferably mounted on a set of studs allowing the gases leaving the percussion system and, the if necessary, from the cylinder head, to go outside the system - an elastic sealing membrane capable of completing the protection of the percussion system.
  • the loading or placing of heavy tools is carried out according to the invention using a cable which passes axially through the launch tube.
  • the projection devices in the case of heavy tools, are equipped with an offset combustion chamber to allow the passage of the cable which is preferably wound on a drum using an electric motor.
  • the cable is equipped at its end with a clamp which is disengageable either mechanically under the effect of the traction due to the pressure of the gases, or electrically, or under the effect of the pressure created in the launching tube.
  • the device for pyrotechnic projection of tools according to the invention can be equipped with a tube for measuring the speed of projection of the tool, a composite measurement tube being fixed on a rigid structure made of non-magnetic and non-conductive composite material, in order to connect the measuring tube to the frame of the device.
  • the pyrotechnic tool projection system thus produced is preferably mounted on a tracked carrier, but, for small models, it can be mounted on a wheeled carrier, motorized or not or at the rear of a truck or from a pickup truck or even on a rail car.
  • a quick attachment system on a public works vehicle arm makes it possible to transform the pyrotechnic projection device into a tool interchangeable with the buckets of the backhoe.
  • the pyrotechnic projection system can thus be loaded either vertically or horizontally. Placing in the folded position for loading or for transport is preferably carried out by a mechanical system of the wheel and worm type driven by an electric motor.
  • a mechanical system of the wheel and worm type driven by an electric motor preferably carried out by a mechanical system of the wheel and worm type driven by an electric motor.
  • other motion generation systems can be applied, such as cylinders and hydraulic motors, wheels and transmission chains.
  • FIG. 1 shows in longitudinal axial section , a device for pyrotechnic projection of tools according to the invention
  • FIG. 2 shows in longitudinal section on a larger scale, the combustion chamber sub-assembly which is associated with the device pyrotechnic projection device according to the invention
  • Figure 3 shows in exploded view, the combustion chamber sub-assembly of Figure 2
  • FIG. 4 represents, in longitudinal axial section, another embodiment of the device for pyrotechnic projection of tools according to the invention, in which a tool constituted by a probe rod cooperates with a penetration speed measurement system;
  • FIG. 4 represents, in longitudinal axial section, another embodiment of the device for pyrotechnic projection of tools according to the invention, in which a tool constituted by a probe rod cooperates with a penetration speed measurement system
  • FIG. 5 shows, in longitudinal axial section, another embodiment of the device for pyrotechnic projection of tools according to the invention, in which a caliber reduction tube is mounted inside the launching tube;
  • Figure 6 shows a 90 ° section of the embodiment of Figure 4;
  • FIG. 7 shows in cross section another embodiment of the gas generator capable of being used in the pyrotechnic projection device according to the invention;
  • FIG. 8 represents, in longitudinal axial section, another embodiment of the device for pyrotechnic projection of tools according to the invention, in which the tool can be put in place using an axial loading rope;
  • Figures 9 to 13 show various embodiments of tools capable of being associated with the pyrotechnic projection device according to the invention; and
  • the device for pyrotechnic projection of tools according to the invention is mounted inside a frame or barrel l of generally cylindrical shape equipped with a gate 2 allowing access to the tool positioning part.
  • the launching structure mounted inside the frame 1 consists of a ballast mass 3 which serves as a guiding element for the launching structure in the frame when the latter is re ⁇ bottom or flange 4 of the expansion chamber and the launching tube 5.
  • the combustion chamber assembly receiving a gas generator 9 consists of a cylinder head 7 resistant to bursting, of a plate 8 pierced with exhaust orifices 18 for gases of combustion, of a casing forming a loading envelope 10.
  • the cylinder head 7 is rigidly fixed and in a removable and interchangeable manner, for example using screws such as 4a, 4b, at the bottom 4 of the expansion chamber 5a formed inside the launch tube 5.
  • the casing 10 of the gas generator 9 placed in the cylinder head 7 thus fixed externally and removably to the launch tube 5, allows both the use of different launch tubes 5 and different gas generators 9 and their extraction and replacement using a grip handle 11 in the shape of a spout.
  • the cover 15 is removed by sliding, which makes it possible to introduce into the housing of the cylinder head 7 the propellant charge 9 surrounded by its housing 10 by holding it by the handle 11 , then after replacing the cover 15, to rigidly lock in position this gas generator with its priming system 26 (see FIG. 7) placed opposite the striker 13.
  • this gas generator with its priming system 26 (see FIG. 7) placed opposite the striker 13.
  • the propellant powder 31 is ignited by the primer 28 and the ignition powder 27; it burns very quickly creating a lot of gas which generates a high pressure in the chamber 5a of the launching tube 5.
  • This pressure propels, on the one hand at high speed downwards, the piston 41 and the tool attached to it and, on the other hand upwards, the cylinder head 7 as well as the launching tube 5 and the ballast mass 3.
  • the tool for example the penetrometer 43, sinks into the ground while the whole of the tube launch and ballast masses 3 rises a few decimeters upwards, being held back by the effect of gravity; they fall back into position or in battery braked by the gas spring 6.
  • the burnt gases from the gas generator 9 partially escape into the annular space la after passage of the piston 41 beyond the vents 17 (see Figures 1, 4 and 5) and partially downwards following the piston 41, continuing to propel the latter for a few centimeters.
  • the projection device can then be placed above a new firing location, if necessary using a tool of another type, a launching tube of another diameter and different propellant charges.
  • the launch tube 5 has internally, near the bottom 4 of the launch tube leaving a sufficient space for the piston 41, a groove 20 in which is mounted a polygonal or circular elastic ring 19 for locking the piston 41 of the tool to be launched (see also FIG. 2).
  • the launch tube 5 can receive (as shown in Figure 5) launch tubes 21 of smaller diameters suitable for ejecting tools or tool holders of smaller diameters.
  • the trigger system 9a of the pyrotechnic gas generator 9 is preferably produced by percussion using an electromagnet 12 equipped with a fixed or adjustable striker 13.
  • the electrical connection 14 between the electromagnet 12 and a source of energy, is produced by an extensible spiral wire.
  • the electromagnet can be replaced by another percussion system such as a pneumatic cylinder, a spring-hydraulic cylinder assembly, a manually-wound spring or by an electric motor.
  • the electromagnet is replaced by a laser source or correspondingly by an electric trigger capable of being connected to an electric source such as a battery.
  • a cover plate 15 carrying the striker 13 closes the cylinder head 7 upwards, for example by simple translation in grooves 16
  • the cylinder head 7 thus constitutes a sub- rigid and interchangeable assembly attached externally and removably to one end (flange 4) of the launch tube 5.
  • the vents 17 open into an annular chamber 1a which is delimited mainly between a cylindrical extension lb of the frame 1 and the outer wall of the launching tube 5.
  • a tube d is thus obtained propulsion gas escaping upwards which makes it possible to eliminate or at least significantly reduce the nuisances likely to be caused by the pyrotechnic projection device due to the noise it generates during operation and possible projections of floor covering.
  • the gas generator shown in FIG. 7 is made up of a housing 25, preferably made of a composite material such as thermoplastic or thermosetting resin, loaded or not with carbon fibers and other materials.
  • This box comprises a priming member 26 contained in a case which contains ignition powder 27 and a percussion primer 28, with laser or electric ignition.
  • the housing 25 contains the propellant powder 31 which suddenly generates, by combustion after priming, the propellant gases of the piston 41 of the tool.
  • a keying pin 30 allows the correct positioning of the generator in its housing 10 for aid to the loading in the cylinder head 7.
  • a cover 29 has, according to the model of generator, a greater or lesser number of pre-embrittled cells 32 which, after shearing in the orifices 18 of the plate 8, allow the calibrated passage of the propellant gases in function of the propellant powder mass 31.
  • the orifices are closed by a strip 71.
  • a seal 72 ensures the sealing of the primer with respect to any penetration of moisture.
  • a locking spigot 73 resulting from the molding keeps the primer in place.
  • a sticker 74 in rigid, adhesive-coated foam protects the primer against unwanted impact.
  • a cable 22 for loading heavy tools is equipped at its end with a disengageable clamp 23 and a support plate 24.
  • this cable is for example wound around a muffling pulley 24a and driven for example by an electric ascent motor.
  • the clamp 23 is mechanically disengageable under the effect of the traction exerted by the tool on the wire, the operation is carried out as follows: the pressure generated in the launching tube 5 keeps the plate 24 in ap ⁇ meme on the bottom 4 of the launch tube 5 and pushing the piston 41 of the tool, pulls on the wire 22, which opens the clamp 23.
  • the clamp can also be provided with an opening system pressure, sensitive to the gas pres ⁇ sion in the launch tube 5.
  • the pyrotechnic projector of tools can be equipped with a tube 40 for measuring the evolution of the speed of the tool.
  • the piston 41 of the tool (see FIG. 4) is then fitted with a magnet 44 and is rigidly connected to the probe rod 43 of a dynamic peneeter.
  • the measurement tube 40 is fitted with solenoids 42 regularly distributed over its height and which make it possible to detect temporally, preferably using a cathode-ray oscillograph, the passage of the magnet 44.
  • the relative positions of the opening of the tube, of the gate 2 and of its rotation hinge allow, when the gate 2 is opened, to release the split measurement tube from a probe rod or from an incomplete tool. pressed.
  • the pyrotechnic projection device according to the invention can be equipped with a wide variety of tools.
  • a compactor plate tool 45 This tool consists of a launch tube 46 closed at its upper end and carrying at its lower end a tray compaction 47 reinforced by stiffeners 48, the plate can have a circular or polygonal shape.
  • Such a tool is used for compacting soils and particularly for embankments and trenches.
  • the very large energy which is communicated to the tool by the gas generator makes it possible to quickly obtain very effective compaction.
  • the tool pyrotechnic projection device can be equipped with a punch compactor tool 49 shown in FIG. 9.
  • a punch compactor tool 49 shown in FIG. 9.
  • Such a tool consists of a launching tube 50 with a hollow interior and extended by a tube of compaction 51, preferably cylindrical and of the same diameter or of different diameter, and terminated by a puncture aid tip 52.
  • the compaction tube or its tip may have a flat bottom.
  • Such a tool is used to make holes whose walls are compacted. In the case where specific concrete foundations are made, the bearing capacity of the concrete studs is significantly improved by such holes with compacted walls, for the same foundation volume.
  • the pyrotechnic propulsion device can be equipped with a coring tube 53 shown in FIG. 10.
  • a coring tube 53 shown in FIG. 10.
  • Such a tool consists of a launching tube 54 closed at the upper part by a plug 55 quick closing 56 and whose opening allows the ejection of the coring block.
  • the launching tube 54 is preferably mounted in the coring tube, but a tube of different diameter can extend the launching tube in order to produce corottes of different diameter from the caliber of the launching tube.
  • the core drilling tube is terminated by a cutting section 57 or by an overhanging knife 58. Without going out of the invention, it can be equipped with different systems for assisting with the shearing of the core fitted to the standard coring tubes.
  • Such a tool is used to carry out core analysis cores or preferably cylindrical holes, by removing the core from the soil.
  • the device for pyrotechnic projection of tools can be equipped with a tube intended for the burial of an explosive or propellant charge 59, represented in FIG. 11.
  • a tube 59 consists of a rod 60, preferably hollow , closed at its upper part and surrounded by a tube 61 preferably made of plastic or cardboard and terminated by a conical tip 62 for penetration assistance, this tip preferably has an overhanging section. After the conical tip has penetrated into the ground, the tube 60 is removed. The outer tube 61 and the conical tip remain in the ground.
  • a pyrotechnic charge is introduced into the channel which has been made free by the extraction of the rod 60. The channel thus created can be used to bury elements, materials or equipment other than pyrotechnic charges.
  • FIG. 12 shows a pyrotechnic projector intended to project into a road surface a hollow rod 37 closed at its lower end 39 and pierced with lateral orifices 38.
  • a tool can serve, after being projected into a road surface, as an injection channel for resin or sealing concrete, cables or superstructures.
  • the device for pyrotechnic projection of tools can be equipped with a tool-rod 33 for supporting the grounding cable 34.
  • the guide rod preferably has an L or T profile but it is also possible to use another profile.
  • the extra length of connection of the cable 35 is preferably coiled in the head of the piston 36.
  • the pyrotechnic projection device according to the invention can project tools or tools that can be recovered or consumed in the ground, in materials or structures such as walls, paving, road coverings, etc.
  • the triggering system 9a is fixed, on the cover or closure plate 15 and isolated from it, by means of four studs 75 forming a part with vents to evacuate gases from the trigger system. It is seen, in cooperation with the exploded view of Figure 3 that the closure plate 15 which can be slid in the two slides 16 of the cylinder head 7 using the operating handle 63, is locked in position during firing by a safety lug screw 64.
  • a safety sensor 65 for closing the plate 15 makes it possible to initiate firing by the electromagnet 12 acting on the striker 13 only if the plate 15 which carries the electromagnet 12, is properly mounted and locked in position (by the relaxation of the screw-safety pin assembly 64).
  • FIG. 14 shows a carrier machine 66 for transporting and setting the firing position of the tool projection device according to the present invention.
  • This carrier 66 comprises an interface frame 67 for the frame 1, a jack 68 for rotating the frame 1 for transport and for firing, a tilt correction jack 69 and a rotation head 70.

Abstract

A pyrotechnic firing device for tools connected to a firing plunger movably mounted in a launch tube. The device consists of an inner barrel or frame (1), and a firing gas generator (9) housed in a modular breech (7) at one end of the launch tube (5) secured to a weight (3) which receives the recoil on the breech (7) during firing and is connected to one end of a damping cylinder (6) between the frame (1) and the weight (3). The device is useful as an easily adaptable and convertible firing device capable of being fitted with a wide variety of tools.

Description

DISPOSITIF DE PROJECTION PYROTECHNIQUE D'OUTILS PYROTECHNICAL TOOL PROJECTION DEVICE
La présente invention est relative à un dispositif de projection pyrotechnique d'outils reliés à un piston de projection mobile à l'intérieur d'un tube de lancement. Plus particulièrement, la présente invention a pour objet un dispositif de projection pyrotechnique, inclus dans un système modulaire de projection pyrotechnique d'outils, utilisant l'énergie délivrée par un générateur de gaz et dont l'équilibrage du recul est assuré par l'effet de la gravité sur la structure de lancement. L'invention s'applique encore plus particulièrement à un matériel de projection pyrotechnique d'outils équipé d'un piston d'interface de projection à grande vitesse depuis un tube de lancement dans lequel se développe une pression de combustion créée par les gaz émis par un générateur de gaz à partir d'une poudre propulsive.The present invention relates to a device for pyrotechnic projection of tools connected to a mobile projection piston inside a launching tube. More particularly, the present invention relates to a pyrotechnic projection device, included in a modular pyrotechnic projection system of tools, using the energy delivered by a gas generator and whose recoil balancing is ensured by the effect gravity on the launch structure. The invention applies even more particularly to a pyrotechnic projection equipment for tools equipped with a piston for a high-speed projection interface from a launch tube in which a combustion pressure is created created by the gases emitted by a gas generator from a propellant powder.
EP-A-0 389 375 décrit un système d'enfoncement d'ancrage dans le sol par utilisation de l'énergie déli- vrée par un générateur de gaz, système dont l'équilibrage de recul est assuré par l'effet de la gravité sur la structure de lancement qui agit en tant que protecteur acoustique.EP-A-0 389 375 describes a system for driving anchoring into the ground by using the energy delivered by a gas generator, a system whose recoil balancing is ensured by the effect of gravity on the launch structure which acts as an acoustic protector.
Par ailleurs, EP-A-0 561 968 décrit un système de me- sure des caractéristiques du sol par enfoncement d'une tige sonde dont la mise en vitesse est réalisée par l'énergie délivrée par un générateur de gaz et dont l'évolution de la vitesse de pénétration dans le sol est mesurée en continu par un ensemble électromagnétique. Depuis la mise en oeuvre de ces systèmes d'enfonce¬ ment d'ancrage et de mesure des caractéristiques du sol, d'autres besoins du même type ont été exprimés par diffé¬ rents corps de métier du bâtiment et des travaux publics, en particulier des besoins relatifs au compactage, au carottage, au creusement de fondations ponctuelles, etc, .... Ces besoins exprimés ont fait apparaître la né¬ cessité d'améliorer encore la conception mécanique, l'adaptabilité, la conception des générateurs de gaz et leur modularité, la réduction des nuisances des gaz, le système de retombée de la structure de lancement et son amortissement ainsi que le système de chargement des ou¬ tils lourds, tout en continuant à permettre d'équiper ces systèmes d'organes de mesure de la vitesse de pénétration dans le sol.Furthermore, EP-A-0 561 968 describes a system for measuring the characteristics of the soil by driving in a probe rod, the speed of which is achieved by the energy delivered by a gas generator and the evolution of which of the speed of penetration into the ground is continuously measured by an electromagnetic assembly. Since the implementation of these anchoring penetration systems and measurement of soil characteristics, other needs of the same type have been expressed by different building trades and public works, in particular needs relating to compaction, coring, digging of point foundations, etc., ... These expressed needs have revealed the need to further improve the mechanical design, adaptability, design of gas generators and their modularity, the reduction of nuisance gases, the fallout system of the launch structure and its damping as well as the loading system of heavy tools, while continuing to allow these systems to be equipped with the speed of penetration into the ground.
Le dispositif de projection pyrotechnique selon la présente invention a précisément pour but de mieux satis¬ faire ces différents desiderata des utilisateurs. La présente invention a pour objet un dispositif de projection pyrotechnique d'outil, contenu à l'intérieur d'un fût ou bâti et constitué d'un générateur de gaz de projection, associé à un système de déclenchement ou d'initiation, placé dans une culasse modulaire reliée à un bec ou poignée de préhension, et fixée à une extrémité d'un tube de lancement solidaire d'une masse lest desti¬ née à supporter l'effet de recul exercé sur la culasse au cours de la projection et qui est reliée à une de SES ex¬ trémités à un vérin amortisseur interposé entre le bâti et la masse lest pour amortir la retombée de cette masse lest après son recul.The purpose of the pyrotechnic projection device according to the present invention is precisely to better satisfy these various wishes of the users. The subject of the present invention is a device for pyrotechnic projection of a tool, contained inside a barrel or frame and consisting of a generator of projection gas, associated with a triggering or initiation system, placed in a modular cylinder head connected to a spout or grip, and fixed to one end of a launching tube secured to a ballast mass intended to withstand the recoil effect exerted on the cylinder head during projection and which is connected to one of its SES ex¬ hoppers with a damping cylinder interposed between the frame and the ballast mass to absorb the fallout of this ballast mass after its retreat.
Selon un autre mode de réalisation de l'invention, le générateur de gaz placé dans la culasse et son système de déclenchement sont situés à l'extérieur et à une extrémité du tube de lancement qui reçoit l'outil à travers l'autre extrémité.According to another embodiment of the invention, the gas generator placed in the cylinder head and its trigger system are located outside and at one end of the launch tube which receives the tool through the other end.
Selon encore un autre mode de réalisation de l'inven¬ tion, le tube de lancement comporte à son extrémité oppo¬ sée au générateur de gaz, des évents latéraux d'éjection des gaz avant la sortie du piston de projection hors du tube de lancement, et ces évents débouchent dans une chambre annulaire ménagée entre la paroi extérieure du tube de lancement et un prolongement cylindrique du bâti entourant le tube de lancement. Selon un autre mode encore de réalisation de l'inven¬ tion, le tube de lancement est équipé intérieurement d'un tube sous-calibré gigogne permettant l'emploi d'un piston de projection d'outils de plus petit diamètre. Selon encore un autre mode de réalisation de l'invention, le système de déclenchement du générateur de gaz est constitué d'un dispositif de percussion d'une amorce. Il est séparé de la culasse recevant le générateur de gaz par une pièce à évents apte à éjecter les gaz provenant des fuites au niveau de l'orifice de percussion; il est ainsi possible d'éviter l'encrassement du système de déclenchement.According to yet another embodiment of the invention, the launch tube comprises, at its end oppo¬ ed to the gas generator, lateral gas ejection vents before the projection piston leaves the launch tube , and these vents open into an annular chamber formed between the outer wall of the launch tube and a cylindrical extension of the frame surrounding the launch tube. According to yet another embodiment of the invention, the launching tube is internally equipped with a sub-calibrated pull-out tube allowing the use of a piston for projecting tools of smaller diameter. According to yet another embodiment of the invention, the triggering system of the gas generator consists of a device for striking a primer. It is separated from the cylinder head receiving the gas generator by a vented part capable of ejecting the gases coming from the leaks at the level of the percussion orifice; it is thus possible to avoid fouling of the trigger system.
Selon un autre mode de réalisation du dispositif de projection pyrotechnique selon l'invention, celui-ci com¬ porte un organe de chargement de l'outil constitué d'un câble traversant axialement le tube de lancement et relié à une pince de préhension susceptible d'être déconnectée sous l'effet de la force de propulsion agissant sur le piston de projection de l'outil dans le tube de lancement et d'une plaque d'étanchéité servant d'élément d'appui et de butée lors de la remontée de l'outil dans le tube de lancement et servant à la commande de la libération de la pince. Le piston de projection est susceptible d'être relié rigidement ou d'être solidaire d'outils divers tels que compacteur à plateau, compacteur à poinçon, tube de ca- rottage, tube d'enfouissement, injecteur, tige pénétro- mètre, tige porteuse de câble de terre. D'une manière générale et dans un souci de fiabilité et de sécurité, le générateur de gaz est placé dans une chambre de combustion et son système de lancement est situé de préférence en dehors du tube de lancement et hors de l'outil projeté ou de son piston de lancement. La présence d'un boîtier culasse modulaire permet, dans le même matériel, l'utilisation de générateurs de gaz de différents diamètres et donc de différentes masses de poudres propulsives qui sont adaptées à l'énergie né¬ cessaire au bon fonctionnement de chaque outil. La poi- gnée de préhension du boîtier culasse modulaire facilite l'introduction et surtout l'extraction après fonctionne¬ ment du générateur de gaz dans sa chambre de combustion. Le calibre du tube de lancement est adaptable au dia¬ mètre de l'outil projeté ou de son porte-outil grâce à l' introduction et au blocage en position de tubes de plus petit diamètre à l' intérieur du tube de lancement. Afin de limiter les nuisances relatives dues principalement au bruit, les éventuelles projections de revêtement de sol et les efforts sur le portillon de fermeture du dispositif de projection nécessaire pour la sécurité, le tube de lancement est équipé d'évents latéraux qui permettent d'éjecter, après le passage du piston de l'outil, des gaz vers le haut dans la chambre annulaire qui constitue un silencieux à l'intérieur du bâti du dispositif selon l'invention.According to another embodiment of the pyrotechnic projection device according to the invention, it comprises a tool loading member consisting of a cable axially passing through the launch tube and connected to a gripper capable of '' be disconnected under the effect of the propelling force acting on the tool's projection piston in the launching tube and a sealing plate serving as a support and stop element during the ascent of the tool in the launch tube and used to control the release of the clamp. The projection piston is capable of being rigidly connected or of being secured to various tools such as plate compactor, punch compactor, coring tube, burial tube, injector, penetrating rod, supporting rod earth cable. In general and for the sake of reliability and safety, the gas generator is placed in a combustion chamber and its launching system is preferably located outside the launching tube and outside the projected tool or its launch piston. The presence of a modular cylinder head housing allows, in the same material, the use of gas generators of different diameters and therefore of different masses of propellant powders which are adapted to the energy necessary for the proper functioning of each tool. The gripping handle of the modular cylinder head housing facilitates the introduction and especially the extraction after operation of the gas generator in its combustion chamber. The caliber of the launch tube is adaptable to the diameter of the projected tool or its tool holder thanks to the introduction and locking in position of tubes of smaller diameter inside the launch tube. In order to limit the relative nuisances mainly due to noise, possible projections of floor covering and the efforts on the closing gate of the projection device necessary for safety, the launching tube is equipped with lateral vents which make it possible to eject , after the passage of the piston of the tool, gases upwards in the annular chamber which constitutes a silencer inside the frame of the device according to the invention.
Le tube de lancement et sa structure de lest ou masse lest sont libres de reculer verticalement vers le haut et ce recul assure, sous l'effet de la gravité, l'équilibra¬ ge de la quantité de mouvement appliquée au piston et à l'outil projeté.The launch tube and its ballast structure or ballast mass are free to recede vertically upwards and this recoil ensures, under the effect of gravity, the balance of the amount of movement applied to the piston and to the projected tool.
L'amortissement de la retombée du tube de lancement et de sa structure lest après un tir d'outil est assuré par un vérin à gaz synchronisé qui se déploit lorsque le tube de lancement recule et qui le rejoint ainsi au som¬ met de sa trajectoire verticale, et freine sa descente par transfert contrôlé des gaz entre les deux chambres du vérin à gaz.Damping of the fallout of the launch tube and its ballast structure after a tool shot is ensured by a synchronized gas spring which deploys when the launch tube moves back and which thus joins it at the end of its trajectory vertical, and brakes its descent by controlled transfer of gases between the two chambers of the gas spring.
L'adaptation de la vitesse de montée du vérin, de la force de retenue appliquée sur le tube de lancement et sa structure lest et de la vitesse de retour du tube de lan¬ cement et de sa structure lest, est réalisée à l'aide d'évents calibrés à simple ou double passage et de la pression de gonflage du vérin.The adaptation of the jacking up speed, the retaining force applied to the launching tube and its ballast structure and the return speed of the launching tube and its ballast structure, is carried out using calibrated single or double pass vents and cylinder inflation pressure.
Afin d'éviter les effets d'encrassement par les gaz issus du générateur de gaz, sur le système de percussion, le système de déclenchement par percussion est monté de préférence sur un ensemble de plots permettant aux gaz sortant du système de percussion et, le cas échéant, de la culasse, de se diriger vers l'extérieur du système - une membrane élastique d'étanchéité étant susceptible de compléter la protection du système de percussion.In order to avoid the effects of fouling by the gases coming from the gas generator, on the percussion system, the percussion triggering system is preferably mounted on a set of studs allowing the gases leaving the percussion system and, the if necessary, from the cylinder head, to go outside the system - an elastic sealing membrane capable of completing the protection of the percussion system.
Le chargement ou la mise en place des outils lourds est effectué selon l'invention à l'aide d'un câbïe qui traverse axialement le tube de lancement. Les dispositifs de projection, dans le cas d'outils lourds, sont équipés d'une chambre de combustion désaxée afin de permettre le passage du câble qui est de préférence enroulé sur un tambour à l'aide d'un moteur électrique. Le câble est équipé à son extrémité d'une pince qui est débrayable soit mécaniquement sous l'effet de la traction due à la pression des gaz, soit électriquement, soit sous l'effet de la pression créée dans le tube de lancement.The loading or placing of heavy tools is carried out according to the invention using a cable which passes axially through the launch tube. The projection devices, in the case of heavy tools, are equipped with an offset combustion chamber to allow the passage of the cable which is preferably wound on a drum using an electric motor. The cable is equipped at its end with a clamp which is disengageable either mechanically under the effect of the traction due to the pressure of the gases, or electrically, or under the effect of the pressure created in the launching tube.
Le dispositif de projection pyrotechnique d'outils selon l'invention peut être équipé d'un tube de mesure de la vitesse de projection de l'outil, un tube composite de mesure étant fixé sur une structure rigide en matériau composite amagnétique et non conducteur, afin de relier le tube de mesure au bâti du dispositif. Le système de projection pyrotechnique d'outils ainsi réalisé est de préférence monté sur un organe porteur à chenilles, mais, pour les petits modèles, il peut être monté sur un porteur à roues motorisé ou non ou à l'arrière d'un camion ou d'une camionnette ou même sur un wagon ferroviaire. Selon l'invention, un système d'atta¬ che rapide sur un bras d'engin de travaux publics, tel qu'une pelleteuse, permet de transformer le dispositif de projection pyrotechnique en un outil interchangeable avec les godets de la pelleteuse. Le système de projection pyrotechnique peut ainsi être chargé soit verticalement, soit horizontalement. La mise en position repliée pour le chargement ou pour le transport est réalisée de préférence par un système méca¬ nique du type à roue et vis sans fin entraîné par un mo- teur électrique. Cependant, on peut appliquer d'autres systèmes de génération de mouvement, tels que des vérins et des moteurs hydrauliques, des roues et des chaînes de transmission. D'autres buts, caractéristiques et avantages apparaî¬ tront à la lecture de la description de divers modes de réalisation de l'invention, faite à titre non limitatif et en regard des dessins annexés, dans lesquels: la figure 1 représente en coupe axiale longitudinale, un dispositif de projection pyrotechnique d'outils selon 1 ' invention; la figure 2 représente en coupe longitudinale à plus grande échelle, le sous-ensemble de chambre de com- bustion qui est associé au dispositif de projection pyrotechnique d'outil selon l'invention; la figure 3 représente en vue éclatée, le sous-ensemble de chambre de combustion de la figure 2; la figure 4 représente, en coupe axiale longitudinale, un autre mode de réalisation du dispositif de projection pyrotechnique d'outils selon l'invention, dans lequel un outil constitué par une tige-sonde coopère avec un système de mesure de vitesse de pénétration; la figure 5 représente, en coupe axiale longitudinale, un autre mode de réalisation du dispositif de projection pyrotechnique d'outils selon l'invention, dans lequel un tube de réduction de calibre est monté à l'inté¬ rieur du tube de lancement; la figure 6 représente une coupe à 90° du mode de réalisation de la figure 4; la figure 7, représente en coupe transversale, un autre mode de réalisation du générateur de gaz susceptible d'être utilisé dans le dispositif de projection pyrotechnique selon l'invention; la figure 8 représente, en coupe axiale longitudinale, un autre mode de réalisation du dispositif de projection pyrotechnique d'outils selon l'invention, dans lequel l'outil peut être mis en place à l'aide d'un filin axial de chargement; les figures 9 à 13 représentent divers modes de réalisa¬ tion des outils susceptibles d'être associés au dis¬ positif de projection pyrotechnique selon l' invention; et la figure 14 représente en élévation un véhicule chenille de transport et de mise en place d'un système de pro¬ jection d'outils utilisant le dispositif de projection pyrotechnique selon l'invention. En se reportant à la figure 1, on voit que le dispo¬ sitif de projection pyrotechnique d'outils selon l'inven¬ tion est monté à l'intérieur d'un bâti ou fût l de forme générale cylindrique équipé d'un portillon 2 permettant d'accéder à la partie de mise en place de l'outil. La structure de lancement montée à l'intérieur du bâti 1 est constitué d'une masse lest 3 qui sert d'élément de guida¬ ge de la structure de lancement dans le bâti lors du re¬ cul de celle-ci, d'un fond ou flasque 4 de la chambre de détente et du tube de lancement 5. Un vérin amortisseur 6, dans le présent cas un vérin à gaz, interposé entre le bâti 1 et la masse lest 3, se déploie lors de la remontée de la structure de lancement constituée principalement du tube de lancement 5 et de la masse lest 3 et fonctionne en amortisseur lors de la re- descente de cette structure.The device for pyrotechnic projection of tools according to the invention can be equipped with a tube for measuring the speed of projection of the tool, a composite measurement tube being fixed on a rigid structure made of non-magnetic and non-conductive composite material, in order to connect the measuring tube to the frame of the device. The pyrotechnic tool projection system thus produced is preferably mounted on a tracked carrier, but, for small models, it can be mounted on a wheeled carrier, motorized or not or at the rear of a truck or from a pickup truck or even on a rail car. According to the invention, a quick attachment system on a public works vehicle arm, such as a backhoe, makes it possible to transform the pyrotechnic projection device into a tool interchangeable with the buckets of the backhoe. The pyrotechnic projection system can thus be loaded either vertically or horizontally. Placing in the folded position for loading or for transport is preferably carried out by a mechanical system of the wheel and worm type driven by an electric motor. However, other motion generation systems can be applied, such as cylinders and hydraulic motors, wheels and transmission chains. Other objects, characteristics and advantages will appear on reading the description of various embodiments of the invention, given without limitation and with reference to the appended drawings, in which: FIG. 1 shows in longitudinal axial section , a device for pyrotechnic projection of tools according to the invention; FIG. 2 shows in longitudinal section on a larger scale, the combustion chamber sub-assembly which is associated with the device pyrotechnic projection device according to the invention; Figure 3 shows in exploded view, the combustion chamber sub-assembly of Figure 2; FIG. 4 represents, in longitudinal axial section, another embodiment of the device for pyrotechnic projection of tools according to the invention, in which a tool constituted by a probe rod cooperates with a penetration speed measurement system; FIG. 5 shows, in longitudinal axial section, another embodiment of the device for pyrotechnic projection of tools according to the invention, in which a caliber reduction tube is mounted inside the launching tube; Figure 6 shows a 90 ° section of the embodiment of Figure 4; FIG. 7 shows in cross section another embodiment of the gas generator capable of being used in the pyrotechnic projection device according to the invention; FIG. 8 represents, in longitudinal axial section, another embodiment of the device for pyrotechnic projection of tools according to the invention, in which the tool can be put in place using an axial loading rope; Figures 9 to 13 show various embodiments of tools capable of being associated with the pyrotechnic projection device according to the invention; and FIG. 14 shows in elevation a tracked vehicle for transporting and installing a system for projecting tools using the pyrotechnic projection device according to the invention. Referring to FIG. 1, it can be seen that the device for pyrotechnic projection of tools according to the invention is mounted inside a frame or barrel l of generally cylindrical shape equipped with a gate 2 allowing access to the tool positioning part. The launching structure mounted inside the frame 1 consists of a ballast mass 3 which serves as a guiding element for the launching structure in the frame when the latter is re¬ bottom or flange 4 of the expansion chamber and the launching tube 5. A damping cylinder 6, in this case a gas cylinder, interposed between the frame 1 and the ballast mass 3, is deployed during the ascent of the structure launching device mainly consisting of the launching tube 5 and the ballast mass 3 and functions as a shock absorber when lowering this structure.
Sur les figures 2, 3 et 6, l'ensemble de chambre de combustion recevant un générateur de gaz 9 est constitué d'une culasse 7 résistante à l'éclatement, d'une platine 8 percée d'orifices d'échappement 18 des gaz de combustion, d'un boîtier formant enveloppe de chargement 10. La culasse 7 est fixée rigidement et de façon amovible et interchangeable, par exemple à l'aide de vis telles que 4a, 4b, au fond 4 de la chambre de détente 5a formée à l'intérieur du tube de lancement 5. Le boîtier enveloppe 10 du générateur de gaz 9 placés dans la culasse 7 ainsi fixée extérieurement et de façon amovible au tube de lancement 5, permet à la fois l'utilisation de différents tubes de lancement 5 et de différents générateurs de gaz 9 et leur extraction et leur remplacement en s'aidant d'une poignée de préhension 11 en forme de bec.In FIGS. 2, 3 and 6, the combustion chamber assembly receiving a gas generator 9 consists of a cylinder head 7 resistant to bursting, of a plate 8 pierced with exhaust orifices 18 for gases of combustion, of a casing forming a loading envelope 10. The cylinder head 7 is rigidly fixed and in a removable and interchangeable manner, for example using screws such as 4a, 4b, at the bottom 4 of the expansion chamber 5a formed inside the launch tube 5. The casing 10 of the gas generator 9 placed in the cylinder head 7 thus fixed externally and removably to the launch tube 5, allows both the use of different launch tubes 5 and different gas generators 9 and their extraction and replacement using a grip handle 11 in the shape of a spout.
On va maintenant décrire le fonctionnement du dispo¬ sitif de projection pyrotechnique d'outils en relation avec les figures 1 à 4. Le bâti 1 étant placé verticale¬ ment en position de tir, par exemple à l'aide du véhicule chenille représenté à la figure 14, l'outil utilisé, par exemple le pénétromètre 43 représenté à la figure 4, est introduit dans le tube de lancement 5 après ouverture du portillon 2. Le piston 41 de l'outil vient alors coulis¬ ser dans le tube de lancement 5 en direction de la plaque de fond 4 jusqu'à ce que la bague élastique 19 portée par le tube de lancement 5 vienne s'engager simultanément dans une gorge annulaire 41a du piston 41 de l'outil et dans la gorge 20 du tube 5.We will now describe the operation of the device for pyrotechnic projection of related tools. with Figures 1 to 4. The frame 1 being placed vertically in the firing position, for example using the tracked vehicle shown in Figure 14, the tool used, for example the penetrometer 43 shown in Figure 4 , is introduced into the launching tube 5 after opening the door 2. The piston 41 of the tool then slides in the launching tube 5 in the direction of the bottom plate 4 until the elastic ring 19 carried by the launching tube 5 comes to engage simultaneously in an annular groove 41a of the piston 41 of the tool and in the groove 20 of the tube 5.
Afin d'équiper la culasse 7 de son générateur de gaz, on retire par coulissement le couvercle 15, ce qui permet d'introduire dans le logement de la culasse 7 la charge propulsive 9 entourée de son boîtier 10 en la tenant par la poignée 11, puis après remise en place du couvercle 15, de verrouiller rigidement en position ce générateur de gaz avec son système d'amorçage 26 (voir la figure 7) placé en face du percuteur 13. Après avoir éventuellement à nouveau vérifié la ver¬ ticalité du tube de lancement 5, et la bonne orientation de l'outil vers l'emplacement de tir, on peut procéder au tir, par exemple par rotation d'une clé dans un boîtier de mise à feu. La poudre propulsive 31 est allumée par l'amorce 28 et la poudre d'allumage 27; elle brûle très rapidement en créant beaucoup de gaz qui génère une pression élevée dans la chambre 5a du tube de lancement 5. Cette pression propulse, d'une part à grande vitesse vers le bas, le piston 41 et l'outil qui lui est attaché et, d'autre part vers le haut, la culasse 7 ainsi que le tube de lancement 5 et la masse lest 3. L'outil, par exemple le pénétromètre 43, s'enfonce dans le sol tandis que l'ensemble du tube de lancement et des masses lests 3 s'élève de quelques décimètres vers le haut, en étant freiné par l'effet de la gravité; elles retombent en position ou en batterie freinées par le vérin à gaz 6.In order to equip the cylinder head 7 with its gas generator, the cover 15 is removed by sliding, which makes it possible to introduce into the housing of the cylinder head 7 the propellant charge 9 surrounded by its housing 10 by holding it by the handle 11 , then after replacing the cover 15, to rigidly lock in position this gas generator with its priming system 26 (see FIG. 7) placed opposite the striker 13. After possibly again checking the ver¬ ticality of the launch tube 5, and the correct orientation of the tool towards the firing location, it is possible to fire, for example by rotation of a key in a firing box. The propellant powder 31 is ignited by the primer 28 and the ignition powder 27; it burns very quickly creating a lot of gas which generates a high pressure in the chamber 5a of the launching tube 5. This pressure propels, on the one hand at high speed downwards, the piston 41 and the tool attached to it and, on the other hand upwards, the cylinder head 7 as well as the launching tube 5 and the ballast mass 3. The tool, for example the penetrometer 43, sinks into the ground while the whole of the tube launch and ballast masses 3 rises a few decimeters upwards, being held back by the effect of gravity; they fall back into position or in battery braked by the gas spring 6.
Les gaz brûlés du générateur de gaz 9 s'échappent partiellement dans l'espace annulaire la après passage du piston 41 au-delà des évents 17 (voir les figures 1, 4 et 5) et partiellement vers le bas à la suite du piston 41, en continuant à propulser ce dernier pendant quelques centimètres. Le dispositif de projection peut ensuite être mis en place au-dessus d'un nouvel emplacement de tir, le cas échéant en utilisant un outil d'un autre type, un tube de lancement d'un autre diamètre et des charges propulsives différentes. Comme on le voit sur les figures 1, 4 et 5, le tube de lancement 5 présente intérieurement, à proximité du fond 4 du tube de lancement en laissant un espace suffi¬ sant pour le piston 41, une gorge 20 dans laquelle est monté un anneau élastique polygonal ou circulaire 19 de blocage du piston 41 de l'outil à lancer (voir également la figure 2) .The burnt gases from the gas generator 9 partially escape into the annular space la after passage of the piston 41 beyond the vents 17 (see Figures 1, 4 and 5) and partially downwards following the piston 41, continuing to propel the latter for a few centimeters. The projection device can then be placed above a new firing location, if necessary using a tool of another type, a launching tube of another diameter and different propellant charges. As seen in Figures 1, 4 and 5, the launch tube 5 has internally, near the bottom 4 of the launch tube leaving a sufficient space for the piston 41, a groove 20 in which is mounted a polygonal or circular elastic ring 19 for locking the piston 41 of the tool to be launched (see also FIG. 2).
Le tube de lancement 5 peut recevoir (comme repré¬ senté à la figure 5) des tubes de lancement 21 de dia¬ mètres plus faibles adaptés à l'éjection d'outils ou de porte-outils de plus petits diamètres.The launch tube 5 can receive (as shown in Figure 5) launch tubes 21 of smaller diameters suitable for ejecting tools or tool holders of smaller diameters.
Le système de déclenchement 9a du générateur de gaz pyrotechnique 9 est de préférence réalisé par percussion à l'aide d'un électro-aimant 12 équipé d'un percuteur fixe ou réglable 13. La liaison électrique 14 entre l'électro-aimant 12 et une source d'énergie, est réalisée par un fil spirale extensible. L'électro-aimant peut être remplacé par un autre système de percussion tel qu'un vérin pneumatique, un ensemble ressort-vérin hydraulique, un ressort bandé manuellement ou par un moteur électrique. Dans le cas où l'allumage du générateur de gaz est réalisé au laser ou par voie électrique, l'électro-aimant est remplacé par une source laser ou de façon correspondante par un déclencheur élec¬ trique susceptible d'être relié à une source électrique telle qu'une batterie. Une plaque de couvercle 15 portant le percuteur 13 vient fermer vers le haut la culasse 7, par exemple par simple translation dans des rainures 16The trigger system 9a of the pyrotechnic gas generator 9 is preferably produced by percussion using an electromagnet 12 equipped with a fixed or adjustable striker 13. The electrical connection 14 between the electromagnet 12 and a source of energy, is produced by an extensible spiral wire. The electromagnet can be replaced by another percussion system such as a pneumatic cylinder, a spring-hydraulic cylinder assembly, a manually-wound spring or by an electric motor. In the case where the ignition of the gas generator is carried out by laser or electrically, the electromagnet is replaced by a laser source or correspondingly by an electric trigger capable of being connected to an electric source such as a battery. A cover plate 15 carrying the striker 13 closes the cylinder head 7 upwards, for example by simple translation in grooves 16
(voir la figure 3) . La culasse 7 constitue ainsi un sous- ensemble rigide et interchangeable fixé extérieurement et de façon amovible à une extrémité (flasque 4) du tube de lancement 5.(see figure 3). The cylinder head 7 thus constitutes a sub- rigid and interchangeable assembly attached externally and removably to one end (flange 4) of the launch tube 5.
Des évents 17 réalisés dans le tube de lancement 5 à proximité de 1 'extrémité de ce tube qui est opposée au générateur de gaz 9, permettent aux gaz de propulsion de s'échapper vers le haut, avant la sortie du piston 41 de l'outil hors du tube de lancement 5. Pour cela, les évents 17 débouchent dans une chambre annulaire la qui est délimitée principalement entre un prolongement cylin¬ drique lb du bâti 1 et la paroi extérieure du tube de lancement 5. On obtient ainsi un tube d'échappement des gaz de propulsion vers le haut qui permet de supprimer ou tout au moins de réduire de façon importante les nui- sances susceptibles d'être provoquées par le dispositif de projection pyrotechnique du fait du bruit qu'il génère en cours de fonctionnement et d'éventuelles projections de revêtement du sol.Vents 17 made in the launching tube 5 near the end of this tube which is opposite to the gas generator 9, allow the propellant gases to escape upwards, before the piston 41 exits the tool outside the launching tube 5. For this, the vents 17 open into an annular chamber 1a which is delimited mainly between a cylindrical extension lb of the frame 1 and the outer wall of the launching tube 5. A tube d is thus obtained propulsion gas escaping upwards which makes it possible to eliminate or at least significantly reduce the nuisances likely to be caused by the pyrotechnic projection device due to the noise it generates during operation and possible projections of floor covering.
Le générateur de gaz représenté sur la figure 7 est composé d'un boîtier 25, de préférence réalisé en ma¬ tériau composite tel que résine thermoplastique ou ther- modurcissable chargée ou non de fibres de carbone et autres matériaux. Ce boîtier comporte un organe d'amorça¬ ge 26 contenu dans un étui qui renferme de la poudre d'allumage 27 et une amorce à percussion 28, à allumage laser ou électrique. Le boîtier 25 renferme la poudre propulsive 31 qui génère brutalement, par combustion après amorçage, les gaz propulseurs du piston 41 de l'outil. Un ergot détrompeur 30 permet le positionnement correct du générateur dans son boîtier 10 d'aide au char¬ gement dans la culasse 7.The gas generator shown in FIG. 7 is made up of a housing 25, preferably made of a composite material such as thermoplastic or thermosetting resin, loaded or not with carbon fibers and other materials. This box comprises a priming member 26 contained in a case which contains ignition powder 27 and a percussion primer 28, with laser or electric ignition. The housing 25 contains the propellant powder 31 which suddenly generates, by combustion after priming, the propellant gases of the piston 41 of the tool. A keying pin 30 allows the correct positioning of the generator in its housing 10 for aid to the loading in the cylinder head 7.
Un couvercle 29 présente, selon le modèle de généra¬ teur, un nombre plus ou moins grand d'alvéoles pré-fragi- lisées 32 qui, après cisaillement dans les orifices 18 de la platine 8, permettent le passage calibré des gaz de propulsion en fonction de la masse de poudre propulsive 31. Les orifices sont obturés par un listel 71. Un joint d'étanchéité 72 assure l'étanchéité de l'amorce à l'égard de toute pénétration d'humidité. Un béquet de blocage 73 issu du moulage maintient l'amorce en place. Une gommette 74 en mousse rigide adhésivisée protège l'amorce contre les chocs intempestifs.A cover 29 has, according to the model of generator, a greater or lesser number of pre-embrittled cells 32 which, after shearing in the orifices 18 of the plate 8, allow the calibrated passage of the propellant gases in function of the propellant powder mass 31. The orifices are closed by a strip 71. A seal 72 ensures the sealing of the primer with respect to any penetration of moisture. A locking spigot 73 resulting from the molding keeps the primer in place. A sticker 74 in rigid, adhesive-coated foam protects the primer against unwanted impact.
Selon un autre mode de réalisation de l'invention re¬ présenté sur la figure 8, un câble 22 de chargement des outils lourds est équipé à son extrémité d'une pince dé- brayable 23 et d'une plaque d'appui 24. Pour la remontée de l'outil, ce câble est par exemple enroulé autour d'une poulie de moufflage 24a et entraîné par exemple par un moteur électrique de remontée. Dans le cas où la pince 23 est débrayable mécaniquement sous l'effet de la traction exercée par l'outil sur le fil, le fonctionnement s'effectue de la manière suivante: la pression générée dans le tube de lancement 5 maintient la plaque 24 en ap¬ pui sur le fond 4 du tube de lancement 5 et en repoussant le piston 41 de l'outil, tire sur le fil 22, ce qui fait ouvrir la pince 23. La pince peut également être munie d'un système d'ouverture à pression, sensible à la pres¬ sion des gaz dans le tube de lancement 5.According to another embodiment of the invention shown in FIG. 8, a cable 22 for loading heavy tools is equipped at its end with a disengageable clamp 23 and a support plate 24. For the ascent of the tool, this cable is for example wound around a muffling pulley 24a and driven for example by an electric ascent motor. In the case where the clamp 23 is mechanically disengageable under the effect of the traction exerted by the tool on the wire, the operation is carried out as follows: the pressure generated in the launching tube 5 keeps the plate 24 in ap¬ pui on the bottom 4 of the launch tube 5 and pushing the piston 41 of the tool, pulls on the wire 22, which opens the clamp 23. The clamp can also be provided with an opening system pressure, sensitive to the gas pres¬ sion in the launch tube 5.
Selon l'invention, le projecteur pyrotechnique d'ou¬ tils peut être équipé d'un tube de mesure 40 de l'évolution de la vitesse de l'outil. Le piston 41 de l'outil (voir la figure 4) est alors équipé d'un aimant 44 et est relié rigidement à la tige sonde 43 d'un péné¬ tromètre dynamique. Le tube de mesure 40 est équipé de solénoïdes 42 régulièrement répartis sur sa hauteur et qui permettent de détecter temporellement, de préférence à l'aide d'un oscillographe cathodique, le passage de 1'aimant 44.According to the invention, the pyrotechnic projector of tools can be equipped with a tube 40 for measuring the evolution of the speed of the tool. The piston 41 of the tool (see FIG. 4) is then fitted with a magnet 44 and is rigidly connected to the probe rod 43 of a dynamic peneeter. The measurement tube 40 is fitted with solenoids 42 regularly distributed over its height and which make it possible to detect temporally, preferably using a cathode-ray oscillograph, the passage of the magnet 44.
Les positions relatives de l'ouverture du tube, du portillon 2 et de sa charnière de rotation permettent, lors de l'ouverture du portillon 2, de dégager le tube de mesure fendu d'une tige sonde ou d'un outil incomplète¬ ment enfoncé. Le dispositif de projection pyrotechnique selon l'in¬ vention peut être équipé d'une grande variété d'outils. Dans le mode de réalisation représenté à la figure 8, on a représenté par exemple un outil compacteur à plateau 45. Cet outil est constitué d'un tube de lancement 46 fermé à son extrémité supérieure et portant à son extré¬ mité inférieure un plateau de compactage 47 renforcé par des raidisseurs 48, le plateau peut présenter une forme circulaire ou polygonale. Un tel outil sert au compactage des sols et particulièrement des remblais et des tran¬ chées. L'énergie très importante qui est communiquée à l'outil par le générateur de gaz permet d'obtenir rapide¬ ment un compactage très efficace.The relative positions of the opening of the tube, of the gate 2 and of its rotation hinge allow, when the gate 2 is opened, to release the split measurement tube from a probe rod or from an incomplete tool. pressed. The pyrotechnic projection device according to the invention can be equipped with a wide variety of tools. In the embodiment shown in Figure 8, there is shown for example a compactor plate tool 45. This tool consists of a launch tube 46 closed at its upper end and carrying at its lower end a tray compaction 47 reinforced by stiffeners 48, the plate can have a circular or polygonal shape. Such a tool is used for compacting soils and particularly for embankments and trenches. The very large energy which is communicated to the tool by the gas generator makes it possible to quickly obtain very effective compaction.
Le dispositif de projection pyrotechnique d'outil peut être équipé d'un outil compacteur à poinçon 49 re¬ présenté à la figure 9. Un tel outil est constitué d'un tube de lancement 50 à l'intérieur creux et prolongé par un tube de compactage 51, de préférence cylindrique et de même diamètre ou de diamètre différent, et terminé par une pointe d'aide à la perforation 52. Le tube de compac¬ tage ou sa pointe peuvent présenter un fond plat Un tel outil sert à réaliser des trous dont les parois sont com¬ pactées. Dans le cas où on réalise des fondations ponc¬ tuelles en béton, la portance des plots en béton est si- gnificativement améliorée par de tels trous à parois com¬ pactées, pour un même volume de fondation.The tool pyrotechnic projection device can be equipped with a punch compactor tool 49 shown in FIG. 9. Such a tool consists of a launching tube 50 with a hollow interior and extended by a tube of compaction 51, preferably cylindrical and of the same diameter or of different diameter, and terminated by a puncture aid tip 52. The compaction tube or its tip may have a flat bottom. Such a tool is used to make holes whose walls are compacted. In the case where specific concrete foundations are made, the bearing capacity of the concrete studs is significantly improved by such holes with compacted walls, for the same foundation volume.
Selon un autre mode de réalisation, le dispositif de propulsion pyrotechnique peut être équipé d'un tube de carottage 53 représenté à la figure 10. Un tel outil est constitué d'un tube de lancement 54 fermé à la partie su¬ périeure par un bouchon 55 à fermeture rapide 56 et dont l'ouverture permet l'éjection du bloc de carottage. Le tube de lancement 54 est monté de préférence dans le tube de carottage, mais un tube de diamètre différent peut prolonger le tube de lancement afin de réaliser des ca- rottages de diamètre différent du calibre du tube de lan¬ cement. Le tube de carottage est terminé par une section de coupe 57 ou par un couteau débordant 58. Sans sortir de l'invention, il peut être équipé de différents sys¬ tèmes d'aide au cisaillement de la carotte équipant les tubes de carottage standard. Un tel outil sert à réaliser les carottages d'analyse du sol ou des trous de préfé- rence cylindriques, par prélèvement de la carotte du sol. Le dispositif de projection pyrotechnique d'outils peut être équipé d'un tube destiné à l'enfouissement de charge explosive ou propulsive 59, représenté à la figure 11. Un tel tube 59 est constitué d'une tige 60, de préfé- rence creuse, fermée à sa partie supérieure et entourée d'un tube 61 réalisé de préférence en matière plastique ou en carton et terminé par un embout conique 62 d'aide à la pénétration, cet embout présente de préférence une section débordante. Après la pénétration dans le sol de l'embout conique, on retire le tube 60. Le tube extérieur 61 et l'embout conique restent dans le sol. On introduit une charge pyrotechnique dans le canal qui a été rendu libre par l'extraction de la tige 60. Le canal ainsi créé peut être utilisé pour enfouir des éléments, matières ou équipements autres que des charges pyrotechniques.According to another embodiment, the pyrotechnic propulsion device can be equipped with a coring tube 53 shown in FIG. 10. Such a tool consists of a launching tube 54 closed at the upper part by a plug 55 quick closing 56 and whose opening allows the ejection of the coring block. The launching tube 54 is preferably mounted in the coring tube, but a tube of different diameter can extend the launching tube in order to produce corottes of different diameter from the caliber of the launching tube. The core drilling tube is terminated by a cutting section 57 or by an overhanging knife 58. Without going out of the invention, it can be equipped with different systems for assisting with the shearing of the core fitted to the standard coring tubes. Such a tool is used to carry out core analysis cores or preferably cylindrical holes, by removing the core from the soil. The device for pyrotechnic projection of tools can be equipped with a tube intended for the burial of an explosive or propellant charge 59, represented in FIG. 11. Such a tube 59 consists of a rod 60, preferably hollow , closed at its upper part and surrounded by a tube 61 preferably made of plastic or cardboard and terminated by a conical tip 62 for penetration assistance, this tip preferably has an overhanging section. After the conical tip has penetrated into the ground, the tube 60 is removed. The outer tube 61 and the conical tip remain in the ground. A pyrotechnic charge is introduced into the channel which has been made free by the extraction of the rod 60. The channel thus created can be used to bury elements, materials or equipment other than pyrotechnic charges.
Pour illustrer des applications réalisables à l'aide du dispositif de projection pyrotechnique d'outils selon l'invention, on a représenté à la figure 12 un projecteur pyrotechnique destiné à projeter dans un revêtement rou- tier une tige creuse 37 fermée à son extrémité inférieure 39 et percée d'orifices latéraux 38. Un tel outil peut servir, après sa projection dans un revêtement routier, de canal d'injection de résine ou de béton de scellement, de câbles ou de superstructures. Le dispositif de projection pyrotechnique d'outils peut être équipé d'un outil-tige 33 de support de câ- blette 34 de mise à la terre. Un tel outil permet l'enfoncement de la câblette, la tige guide présente de préférence un profil en L ou en T mais on peut également utiliser un autre profil. La surlongueur de liaison de la câblette 35 est de préférence lovée dans la tête de pis¬ ton 36. Le dispositif de projection pyrotechnique selon l'invention peut projeter des outils ou des outils récu¬ pérables ou consommables dans le sol, dans des matériaux ou des structures tels que de murs, des dallages, des re- vêtements routiers, etc.To illustrate applications achievable using the pyrotechnic tool projection device according to the invention, FIG. 12 shows a pyrotechnic projector intended to project into a road surface a hollow rod 37 closed at its lower end 39 and pierced with lateral orifices 38. Such a tool can serve, after being projected into a road surface, as an injection channel for resin or sealing concrete, cables or superstructures. The device for pyrotechnic projection of tools can be equipped with a tool-rod 33 for supporting the grounding cable 34. Such a tool allows the insertion of the cable, the guide rod preferably has an L or T profile but it is also possible to use another profile. The extra length of connection of the cable 35 is preferably coiled in the head of the piston 36. The pyrotechnic projection device according to the invention can project tools or tools that can be recovered or consumed in the ground, in materials or structures such as walls, paving, road coverings, etc.
Le sous-ensemble constitué par le générateur de gaz 9 et son système de déclenchement 9a, tel que représenté sur la figure 6, est fixé de façon aisément amovible à la culasse 7 elle-même fixée par des vis 4a, 4b à la plaque de fond ou flasque 4 (non représenté) du tube de lance¬ ment 5. Le système de déclenchement 9a est fixé, sur la plaque de couvercle ou de fermeture 15 et isolé de celle- ci, par l'intermédiaire de quatre plots 75 formant pièce à évents pour évacuer les gaz du système de déclenchement. On voit, en coopération avec la vue éclatée de la figure 3 que la plaque de fermeture 15 que l'on peut faire coulisser dans les deux glissières 16 de la culasse 7 à l'aide de la poignée de manoeuvre 63, est verrouillée en position pendant le tir par une vis à ergot de sécurité 64. Un capteur de sécurité 65 de fermeture de la plaque 15 (tiroir de culasse) permet de n'engager le déclenchement du tir par l'électro-aimant 12 agissant sur le percuteur 13 que si la plaque 15 qui porte l'électro-aimant 12, est bien montée et verrouillée en position (par le relâchement de l'ensemble vis-ergot de sécurité 64) .The subassembly consisting of the gas generator 9 and its trigger system 9a, as shown in FIG. 6, is fixed in an easily removable manner to the cylinder head 7 itself fixed by screws 4a, 4b to the plate bottom or flange 4 (not shown) of the launching tube 5. The triggering system 9a is fixed, on the cover or closure plate 15 and isolated from it, by means of four studs 75 forming a part with vents to evacuate gases from the trigger system. It is seen, in cooperation with the exploded view of Figure 3 that the closure plate 15 which can be slid in the two slides 16 of the cylinder head 7 using the operating handle 63, is locked in position during firing by a safety lug screw 64. A safety sensor 65 for closing the plate 15 (breech drawer) makes it possible to initiate firing by the electromagnet 12 acting on the striker 13 only if the plate 15 which carries the electromagnet 12, is properly mounted and locked in position (by the relaxation of the screw-safety pin assembly 64).
On a représenté sur la figure 14 un engin porteur 66 pour le transport et la mise en position de tir du dispositif de projection d'outils selon la présente in- vention. Cet engin porteur 66 comprend un bâti d'interface 67 pour le bâti 1, un vérin 68 de mise en rotation du bâti 1 pour le transport et pour le tir, un vérin correcteur de dévers 69 et une tête de rotation 70.FIG. 14 shows a carrier machine 66 for transporting and setting the firing position of the tool projection device according to the present invention. This carrier 66 comprises an interface frame 67 for the frame 1, a jack 68 for rotating the frame 1 for transport and for firing, a tilt correction jack 69 and a rotation head 70.
Bien entendu, la présente invention n'est pas limitée aux modes de réalisation décrits et représentés, mais elle est susceptible de nombreuses variantes accessibles à l'homme de l'art, sans que l'on ne s'écarte de l'esprit de l' invention. Of course, the present invention is not limited to the embodiments described and shown, but it is capable of numerous variants accessible to those skilled in the art, without departing from the spirit of the invention.

Claims

REVENDICATIONS 1.- Dispositif de projection pyrotechnique d'outil relié à un piston de projection mobile à l'intérieur d'un tube de lancement, caractérisé en ce qu'il est contenu dans un fût ou bâti (1) et est constitué d'un générateur de gaz de projection (9) , associé à un système de déclen¬ chement (9a) , placé dans une culasse (7) fixée à une extrémité d'un tube de lancement (5) solidaire d'une masse lest (3) destinée à supporter l'effet de recul exercé sur la culasse (7) au cours de la projection et qui est reliée à l'une de ses extrémités à un vérin amortisseur (6) interposé entre le bâti (1) et la masse lest (3) pour amortir la retombée de cette masse lest après son recul.  CLAIMS 1.- Pyrotechnic tool projection device connected to a mobile projection piston inside a launching tube, characterized in that it is contained in a barrel or frame (1) and consists of a projection gas generator (9), associated with a triggering system (9a), placed in a cylinder head (7) fixed to one end of a launching tube (5) secured to a ballast mass (3 ) intended to support the recoil effect exerted on the cylinder head (7) during projection and which is connected at one of its ends to a damping cylinder (6) interposed between the frame (1) and the ballast mass (3) to absorb the fallout of this ballast mass after its retreat.
2.- Dispositif de projection pyrotechnique d'outils selon la revendication 1, caractérisé en ce que le géné¬ rateur de gaz (9) et son système de déclenchement (9a) forment un sous-ensemble fixé extérieurement et de façon aisément amovible à la culasse (7) à une extrémité du tube de lancement (5) qui reçoit l'outil à travers 1'autre extrémité.2. A device for pyrotechnic projection of tools according to claim 1, characterized in that the gas generator (9) and its trigger system (9a) form a subassembly fixed externally and easily removable to the breech (7) at one end of the launch tube (5) which receives the tool through the other end.
3.- Dispositif de projection pyrotechnique d'outils selon l'une quelconque des revendications 1 ou 2, carac¬ térisé en ce que le tube de lancement (5) comporte, à son extrémité opposée au générateur de gaz (9) , des évents latéraux (17) d'éjection des gaz avant la sortie du pis¬ ton de projection (41) hors du tube de lancement (5) et en ce que ces évents débouchent dans une chambre annulai¬ re (la) ménagée entre la paroi extérieure du tube de lan- cernent (5) et un prolongement cylindrique (la) du bâti (1) entourant le tube de lancement (5) .3.- Device for pyrotechnic projection of tools according to any one of claims 1 or 2, charac¬ terized in that the launch tube (5) has, at its end opposite to the gas generator (9), vents side (17) of gas ejection before the exit of the projection pis¬ (41) out of the launch tube (5) and in that these vents open into a chamber annulai¬ re (la) formed between the outer wall of the launching tube (5) and a cylindrical extension (la) of the frame (1) surrounding the launching tube (5).
4.- Dispositif de projection pyrotechnique d'outils selon l'une quelconque des revendications 1 à 3, caracté¬ risé en ce que le tube de lancement (5) est équipé inté- rieurement d'un tube sous-calibré gigogne (21) permettant l'emploi d'un piston (41) de projection d'outils de plus petit diamètre. 4. A device for pyrotechnic projection of tools according to any one of claims 1 to 3, characterized in that the launching tube (5) is fitted internally with a sub-calibrated pull-out tube (21) allowing the use of a piston (41) for projecting tools of smaller diameter.
5.- Dispositif de projection pyrotechnique d'outils selon l'une quelconque des revendications 1 à 4, caracté¬ risé en ce que le système de déclenchement (9a) fonctionne par percussion d'une amorce (28) d'un générateur de gaz d'allumage et est séparé de la culasse (7) recevant le générateur de gaz de projection (9) et isolé par une pièce à évents (75) apte à éjecter les gaz du système de déclenchement.5.- Device for pyrotechnic projection of tools according to any one of claims 1 to 4, caracté¬ ized in that the trigger system (9a) operates by percussion of a primer (28) of a gas generator ignition and is separated from the cylinder head (7) receiving the projection gas generator (9) and isolated by a vented part (75) capable of ejecting the gases from the triggering system.
6.- Dispositif de projection pyrotechnique d'outils selon l'une quelconque des revendications 1 à 5, caracté¬ risé en ce qu'il comporte un organe de chargement consti¬ tué d'un câble (22) traversant axialement le tube de lan¬ cement (5) et relié à une pince de préhension (23) sus¬ ceptible d'être déconnectée sous l'effet de la force de propulsion agissant sur le piston (41) de projection de l'outil dans le tube de lancement (5) et d'une plaque d'étanchéité (24) servant d'élément d'appui et de butée lors de la remontée de l'outil dans le tube de lancement6.- Device for pyrotechnic projection of tools according to any one of claims 1 to 5, caracté¬ ized in that it comprises a charging member consti¬ killed by a cable (22) axially passing through the lan tube ¬ cement (5) and connected to a gripper (23) susceptible of being disconnected under the effect of the propelling force acting on the piston (41) of projection of the tool in the launching tube ( 5) and a sealing plate (24) serving as a support element and stop when raising the tool in the launching tube
(5) et à la commande de la libération de la pince (23) . (5) and on the control of the release of the clamp (23).
7.- Dispositif de projection pyrotechnique d'outils selon l'une quelconque des revendications 1 à 6, caracté¬ risé en ce que l'outil peut être entre autres un outil tel que compacteur à plateau (45) , compacteur à poinçon (49), tube de carottage (53), tube d'enfouissement (59), injecteur (37) , pénétromètre (43) , tige porteuse de câble de terre (33) . 7. A device for pyrotechnic projection of tools according to any one of claims 1 to 6, caracté¬ ized in that the tool can be inter alia a tool such as plate compactor (45), punch compactor (49 ), core tube (53), burial tube (59), injector (37), penetrometer (43), earth cable carrying rod (33).
EP95926425A 1994-07-26 1995-07-25 Pyrotechnic tool firing device Expired - Lifetime EP0774025B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9409340A FR2723115B1 (en) 1994-07-26 1994-07-26 PYROTECHNICAL TOOL PROJECTOR
FR9409340 1994-07-26
PCT/FR1995/000998 WO1996003549A1 (en) 1994-07-26 1995-07-25 Pyrotechnic tool firing device

Publications (2)

Publication Number Publication Date
EP0774025A1 true EP0774025A1 (en) 1997-05-21
EP0774025B1 EP0774025B1 (en) 1998-12-23

Family

ID=9465830

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95926425A Expired - Lifetime EP0774025B1 (en) 1994-07-26 1995-07-25 Pyrotechnic tool firing device

Country Status (8)

Country Link
EP (1) EP0774025B1 (en)
AT (1) ATE174985T1 (en)
AU (1) AU3082295A (en)
CA (1) CA2195803A1 (en)
DE (1) DE69506880T2 (en)
ES (1) ES2128751T3 (en)
FR (1) FR2723115B1 (en)
WO (1) WO1996003549A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7367214B2 (en) * 2006-05-16 2008-05-06 Lucent Technologies Inc. Shock and launch apparatus

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2407296A1 (en) * 1977-10-27 1979-05-25 Rech Etudes Tech METHOD AND DEVICE FOR MAKING VERTICAL HOLES IN THE GROUND, IN PARTICULAR WITH A VIEW OF THE SUBSEQUENT PLANTING OF POLES, STAKES OR THE LIKE
DE3167401D1 (en) * 1980-05-05 1985-01-10 Travocean Sarl Pyrotechnic device for anchoring piles or similar objects in the soil
FR2644811B1 (en) * 1989-03-23 1991-05-24 Castagner Bernard PYROTECHNIC SYSTEM FOR PUSHING GROUND ANCHORS

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9603549A1 *

Also Published As

Publication number Publication date
FR2723115B1 (en) 1996-12-06
WO1996003549A1 (en) 1996-02-08
ATE174985T1 (en) 1999-01-15
DE69506880T2 (en) 1999-08-19
DE69506880D1 (en) 1999-02-04
ES2128751T3 (en) 1999-05-16
EP0774025B1 (en) 1998-12-23
CA2195803A1 (en) 1996-02-08
AU3082295A (en) 1996-02-22
FR2723115A1 (en) 1996-02-02

Similar Documents

Publication Publication Date Title
EP0389375B1 (en) System for driving anchors into the ground
EP0334752B1 (en) Improved apparatus for generation of acoustic waves by a percussion mass hitting a plate connected to the borehole wall
EP0151060B1 (en) Device for generating, by percussion, acoustic impulses inside a borehole
FR2575515A1 (en) HYDRAULIC PRESSURE-PROPELLED DEVICE PROVIDING MEASUREMENTS AND INTERVENTIONS DURING INJECTION OR PRODUCTION IN A WELL
CA2055461A1 (en) Self-propelled probe, particularly for penetrating pulverulent materials
CA1054808A (en) Device for the burial of very long flexible elements
FR2472195A1 (en) APPARATUS FOR GENERATING ACOUSTIC PULSE IN A MEDIUM
FR2825354A1 (en) DEVICE FOR EXERCISING A PUSH ON A DOOR OR ANY OTHER VERTICAL PLANAR SURFACE
EP0774025B1 (en) Pyrotechnic tool firing device
EP0136236B1 (en) Seismic puls generating apparatus in a bore hole by mass dropping
EP0039654B1 (en) Pyrotechnic device for anchoring piles or similar objects in the soil
EP0242262B1 (en) Device for generating acoustic waves by percussion of a mass falling onto a target anchored in a borehole
FR2519132A1 (en) DEVICE FOR SUPPLYING AN ARM IN AMMUNITION
FR2596166A1 (en) APPARATUS FOR GENERATING ACOUSTIC PULSES FOR SEISMIC GROUND EXPLORATION
EP0262037A1 (en) System for ejecting by means of a liquid-propellant charge a projectile placed in a launching tube
US5913252A (en) Pyrotechnic tool driving device
EP0677437A1 (en) Anti-surge method and device for marine structures
EP2336019B1 (en) System for launching a weapon from an underwater vehicle
EP3891375B1 (en) Solid booster for a launcher
FR2757443A1 (en) Compactor for compressible materials, e.g. domestic or industrial waste
FR2701102A1 (en) Independent device for launching an object in a submarine environment
CN116356796A (en) Quick freezing solidification processing device of long-range silence ground in beach area
FR2678073A1 (en) Percussion source of elastic waves for well
FR2489529A1 (en) Land seismic source - uses compressed air only, to improve operation speed and avoid freezing
BE421536A (en)

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19970226

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

17Q First examination report despatched

Effective date: 19971117

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19981223

Ref country code: GR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19981223

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19981223

REF Corresponds to:

Ref document number: 174985

Country of ref document: AT

Date of ref document: 19990115

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 69506880

Country of ref document: DE

Date of ref document: 19990204

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: FRENCH

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: PATMED AG

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19990203

ITF It: translation for a ep patent filed

Owner name: MODIANO & ASSOCIATI S.R.L.

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19990323

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19990323

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19990323

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2128751

Country of ref document: ES

Kind code of ref document: T3

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990725

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990725

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990725

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990726

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990731

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990731

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000131

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19990725

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20000615

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20010126

Year of fee payment: 6

Ref country code: BE

Payment date: 20010126

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010731

BERE Be: lapsed

Owner name: CASTAGNER BERNARD

Effective date: 20010731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020329

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030201

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20000810

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050725