EP0634620A1 - Semi-automatic shotgun - Google Patents

Semi-automatic shotgun Download PDF

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Publication number
EP0634620A1
EP0634620A1 EP94201758A EP94201758A EP0634620A1 EP 0634620 A1 EP0634620 A1 EP 0634620A1 EP 94201758 A EP94201758 A EP 94201758A EP 94201758 A EP94201758 A EP 94201758A EP 0634620 A1 EP0634620 A1 EP 0634620A1
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EP
European Patent Office
Prior art keywords
piston assembly
rifle according
tube
cylinder
regulating valve
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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
EP94201758A
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German (de)
French (fr)
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EP0634620B1 (en
Inventor
Joseph A. Badali
Joseph F. N. Rousseau
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Browning SA
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Browning SA
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Publication of EP0634620B1 publication Critical patent/EP0634620B1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A5/00—Mechanisms or systems operated by propellant charge energy for automatically opening the lock
    • F41A5/18—Mechanisms or systems operated by propellant charge energy for automatically opening the lock gas-operated
    • F41A5/26—Arrangements or systems for bleeding the gas from the barrel
    • F41A5/28—Adjustable systems

Definitions

  • This invention relates to improved semi-automatic firearms, especially gas-taking systems for such rifles.
  • This piston under the pressure of the gases moves in said cylinder by communicating a thrust on a sleeve equipped with one or more rods which return backwards all the moving parts which perform the different ejection functions of the sleeve fired, resetting the firing system as well as supplying the barrel with a next cartridge.
  • the above system comprises a return spring acting on said piston in order to replace it during the actions of said set of moving parts.
  • the invention relates to improvements to such a gas-taking mechanism in which all the parts are arranged co-axially and external to the magazine tube which contains the cartridges to be drawn.
  • the gas takeoff mechanism also includes a control valve or pressure relief valve held in position by a spring.
  • This valve is intended to let escape a part of the gases coming from the barrel of the weapon in the event of too great pressure, for example during the firing of cartridges called "Magnum".
  • This gas escape for example through a hole drilled in the side wall of said cylinder, limits the pressure on said piston and avoids reaching too high a speed of movement of said moving parts, which could harm the reliability of the weapon. or lead to excessive wear of moving parts.
  • the invention relates to a regulating gas intake having several new characteristics.
  • a first characteristic according to the invention is constituted by the fact that the pressure relief valve is located in the piston assembly, hence a very simple, efficient and compact construction.
  • valve makes a relative movement relative to the piston and this movement takes place in the same direction and the same direction as the active movement of the piston. hence a reduction in the recoil force.
  • An improved hunting rifle comprises a magazine tube around which is disposed a cylinder whose interior is in communication with the interior of the barrel and in this cylinder and around the magazine tube, on the one hand, a piston capable of move under the effect of part of the propellant gases and being able to cooperate with a sleeve provided with one or more rods capable of acting on all of the moving parts, and on the other hand, a valve regulating or overpressure, springs being provided to control, the return of the sleeve and the regulating valve is characterized in that the regulating valve is located in the piston assembly.
  • the semi-automatic shotgun 1 as shown in Figure 1 is substantially constituted by the barrel 2, the carcass 3, the butt 4, the trigger guard 5 with the trigger 6 and the handguard 7 incorporating the magazine tube 8.
  • a gas cylinder 9 fixed to the barrel 2, incorporating a piston 10 and a regulation or pressure relief valve 11, and a sleeve 12 in contact with said piston 10 and fixed to a rod 13 whose free end is in contact with the assembly 14 of the moving parts of the weapon.
  • the interior of the cylinder 9 is in relation to the interior of the barrel 2 by co-axial orifices, respectively 15 and 16.
  • the sleeve 12 is constantly pushed against the piston 10 by a return spring 17.
  • the piston 10 is substantially constituted by a first tube 18 having towards the front end a portion of smaller diameter 19 in which is formed a circular channel 20 housing two O-rings, respectively 21-22, forming a guide element of the piston 10 in the bore 23 of the cylinder 9 and by a second tube 24 of a larger diameter, the rear end of which comprises a threaded portion 25 with which a threaded ring 26 co-operates.
  • the tubing 24 constitutes with respect to the tubing 18 a flange 27 which can cooperate with the rear end 28 of the cylinder 9 and this tubing 24 also has discharge holes 29, located at the front of this tubing 24.
  • the regulation or pressure relief valve 11 which is arranged co-axially in the piston assembly 10, is constituted by a tube 30 having on the outer surface of the longitudinal grooves 31, this tube 30 being guided by its front part of smaller diameter 32 in the bore 33 of the tube 19 of the piston 10, by the outer surface of the grooves 31 in the bore 34 of said tube 18, by O-rings 35-36 housed in a circular cavity 37 in the tube 30 on the magazine tube 8 and by a support ring 38 for the spring 42 fixed on the rear end of the tubing 30 in the bore 39 of the tubing 24 of the piston 10.
  • the tube 30 also has a stop 40 capable of cooperating with a circular surface 41 of the piston 10 under the influence of a return spring 42 housed in the tube 24 of the piston 10 between the support ring 38 bearing on the rear part of the tubing 30 of the valve 11 and said ring 26 fixed in the tubing 24 of the piston 10.
  • the force exerted by the spring 42 on the valve 11 is adjustable by means of the ring 26 which can be moved relative to the tube 24 of the piston 10.
  • part of the propellant gas from the cartridge is derived from the barrel 2 through the orifices 15-16 towards the piston 10 thus causing the displacement of the latter with the effect of a push on the sleeve 12 and thus on the rod 13 which then acts with its free end on all of the moving parts 14 which carry out, in a manner known per se, the various functions of ejection of the drawn socket, the resetting of the firing system and the supply in the barrel chamber of the next cartridge, after which, via the return spring 17 the piston 10 will be replaced.
  • the rifle according to the invention has the advantages of improved sealing; a construction simple, efficient and compact, and a movement of the piston 10 and of the valve 11 in the same direction and the same direction, thereby reducing the recoil force.
  • the sealing elements in particular the O-rings can be replaced by other sealing systems, for example grooves; that the cylinder / piston / valve assembly may be located either, as described above at the periphery of the magazine type, or be located in front of the tube, or on the side of the tube, or even in place of a portion of this tube; that the spring which holds the valve 11 against the piston 10 may be different from a conventional compression spring, etc.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Safety Valves (AREA)
  • Actuator (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Closures For Containers (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Abstract

Improved semi-automatic shotgun of the type comprising a magazine tube (8), around which is arranged a cylinder (9), the interior of which is in communication with the interior of the barrel (2) and, in this cylinder (9) and around the magazine tube (8), on the one hand, a piston (10) displaceable under the effect of some of the propellant gases and capable of cooperating with a sleeve (12) provided with a rod (13) capable of subjecting all the movable parts (14) to stress and, on the other hand, a regulating or pressure-relief valve (11), springs (17-42) being provided for controlling the return of the sleeve (12) and of the regulating valve (11), characterised in that the regulating valve (11) is located in the piston assembly (10). <IMAGE>

Description

Cette invention concerne des armes à feu semi-automatiques perfectionnées, spécialement des systèmes de prise de gaz de tels fusils.This invention relates to improved semi-automatic firearms, especially gas-taking systems for such rifles.

Il est connu que dans les mécanismes de prise de gaz ou à emprunt de gaz, une partie des gaz de propulsion de la cartouche est dérivée du canon de l'arme à travers un orifice appelé prise de gaz vers un ensemble cylindre/piston.It is known that in gas-taking or gas-borrowing mechanisms, part of the propellant gases from the cartridge is derived from the barrel of the weapon through an orifice called gas intake towards a cylinder / piston assembly.

Ce piston, sous la pression des gaz se déplace dans ledit cylindre en communiquant une poussée sur un manchon équipé d'une ou plussieurs tringles qui renvoient vers l'arrière l'ensemble des pièces mobiles qui effectuent les différentes fonctions d'éjection de la douille tirée, le réarmement du système de mise à feu ainsi que l'alimentation dans la chambre du canon d'une cartouche suivante.This piston, under the pressure of the gases moves in said cylinder by communicating a thrust on a sleeve equipped with one or more rods which return backwards all the moving parts which perform the different ejection functions of the sleeve fired, resetting the firing system as well as supplying the barrel with a next cartridge.

Le susdit système comporte un ressort de rappel agissant sur ledit piston afin de le remettre en place pendant les actions dudit ensemble des pièces mobiles.The above system comprises a return spring acting on said piston in order to replace it during the actions of said set of moving parts.

L'invention concerne des perfectionnements à un tel mécanisme de prise de gaz dont l'ensemble des pièces est disposé co-axialement et externe au tube magasin qui contient les cartouches à tirer.The invention relates to improvements to such a gas-taking mechanism in which all the parts are arranged co-axially and external to the magazine tube which contains the cartridges to be drawn.

Ledit mécanisme de prise de gaz comporte également une soupape de régulation ou soupape de surpression maintenue en position par un ressort.The gas takeoff mechanism also includes a control valve or pressure relief valve held in position by a spring.

Cette soupape est destinée à laisser échapper une partie des gaz provenant du canon de l'arme en cas de pression trop importante, par exemple lors du tir de cartouches appelées "Magnum".This valve is intended to let escape a part of the gases coming from the barrel of the weapon in the event of too great pressure, for example during the firing of cartridges called "Magnum".

Cet échappement de gaz, par exemple par un orifice foré dans la paroi latérale dudit cylindre, limite la pression sur ledit piston et évite d'atteindre une trop grande vitesse de déplacement desdites pièces mobiles, ce qui pourrait nuire à la fiabilité de l'arme ou conduire à une usure excessive des pièces en mouvement.This gas escape, for example through a hole drilled in the side wall of said cylinder, limits the pressure on said piston and avoids reaching too high a speed of movement of said moving parts, which could harm the reliability of the weapon. or lead to excessive wear of moving parts.

L'invention vise une prise de gaz de régulation présentant plusieurs caractéristiques nouvelles.The invention relates to a regulating gas intake having several new characteristics.

Une première caractéristique selon l'invention est constituée par le fait que la soupape de surpression est située dans l'ensemble piston, d'où une construction très simple, efficace et compacte.A first characteristic according to the invention is constituted by the fact that the pressure relief valve is located in the piston assembly, hence a very simple, efficient and compact construction.

Une autre caractéristique selon l'invention se trouve dans le fait que pour laisser échapper un excès de pression, la soupape fait un mouvement relatif par rapport au piston et ce mouvement se fait dans le même sens et la même direction que le mouvement actif du piston d'où une réduction de la force de recul.Another characteristic according to the invention is found in the fact that, in order to allow excess pressure to escape, the valve makes a relative movement relative to the piston and this movement takes place in the same direction and the same direction as the active movement of the piston. hence a reduction in the recoil force.

Un fusil de chasse perfectionné selon l'invention comporte un tube magasin autour duquel est disposé un cylindre dont l'intérieur est en communication avec l'intérieur du canon et dans ce cylindre et autour du tube magasin, d'une part, un piston pouvant se déplacer sous l'effet d'une partie des gaz de propulsion et pouvant coopérer avec un manchon pourvu d'une ou plusieurs tringles capables de solliciter l'ensemble des pièces mobiles, et d'autre part, une soupape de régulation ou de surpression, des ressorts étant prévus pour contrôler, le retour du manchon et de la soupape de régulation est caractérisé en ce que la soupape de régulation est située dans l'ensemble piston.An improved hunting rifle according to the invention comprises a magazine tube around which is disposed a cylinder whose interior is in communication with the interior of the barrel and in this cylinder and around the magazine tube, on the one hand, a piston capable of move under the effect of part of the propellant gases and being able to cooperate with a sleeve provided with one or more rods capable of acting on all of the moving parts, and on the other hand, a valve regulating or overpressure, springs being provided to control, the return of the sleeve and the regulating valve is characterized in that the regulating valve is located in the piston assembly.

Afin de mieux faire ressortir les susdites et autres caractéristiques selon l'invention, un exemple de réalisation est décrit ci-après en se référant aux dessins annexés dans lesquels:

  • la figure 1 représente un fusil de chasse semi-automatique incorporant les perfectionnements selon l'invention;
  • la figure 2 représente à plus grande échelle avec coupe partielle la partie indiquée par F2 à la figure 1;
  • la figure 3 représente à plus grande échelle la partie indiquée par F3 à la figure 2, le piston et la soupape se trouvant dans sa position de repos;
  • la figure 4 est une vue semblable à celle de la figure 3, le piston, respectivement la soupape, se trouvant dans une position correspondant au tir de cartouches faibles;
  • la figure 5 est une vue semblable à celle de la figure 3, le piston, respectivement la soupape, se trouvant dans une position correspondant au tir de cartouches "Magnum".
In order to better highlight the above and other characteristics according to the invention, an exemplary embodiment is described below with reference to the accompanying drawings in which:
  • FIG. 1 represents a semi-automatic hunting rifle incorporating the improvements according to the invention;
  • Figure 2 shows on a larger scale with partial section the part indicated by F2 in Figure 1;
  • Figure 3 shows on a larger scale the part indicated by F3 in Figure 2, the piston and the valve being in its rest position;
  • Figure 4 is a view similar to that of Figure 3, the piston, respectively the valve, being in a position corresponding to the firing of weak cartridges;
  • Figure 5 is a view similar to that of Figure 3, the piston, respectively the valve, being in a position corresponding to the firing of cartridges "Magnum".

Le fusil de chasse semi-automatique 1 comme représenté à la figure 1 est substantiellement constitué par le canon 2, la carcasse 3, la crosse 4, le pontet 5 avec la détente 6 et le garde-main 7 incorporant le tube magasin 8.The semi-automatic shotgun 1 as shown in Figure 1 is substantially constituted by the barrel 2, the carcass 3, the butt 4, the trigger guard 5 with the trigger 6 and the handguard 7 incorporating the magazine tube 8.

Autour du tube magasin 8 sont montés, dans le garde-main 7, successivement, un cylindre à gaz 9 fixé au canon 2, incorporant un piston 10 et une soupape de régulation ou de surpression 11, et un manchon 12 en contact avec ledit piston 10 et fixé à une tringle 13 dont l'extrémité libre est en contact avec l'ensemble 14 des pièces mobiles de l'arme.Around the magazine tube 8 are mounted, in the handguard 7, successively, a gas cylinder 9 fixed to the barrel 2, incorporating a piston 10 and a regulation or pressure relief valve 11, and a sleeve 12 in contact with said piston 10 and fixed to a rod 13 whose free end is in contact with the assembly 14 of the moving parts of the weapon.

D'une manière traditionelle l'intérieur du cylindre 9 est en relation avec l'intérieur du canon 2 par des orifices co-axiaux, respectivement 15 et 16.Traditionally, the interior of the cylinder 9 is in relation to the interior of the barrel 2 by co-axial orifices, respectively 15 and 16.

Le manchon 12 est en permanence poussé contre le piston 10 par un ressort de rappel 17.The sleeve 12 is constantly pushed against the piston 10 by a return spring 17.

Selon l'invention le piston 10 est substantiellement constitué par une première tubulure 18 présentant vers l'extrémité avant une partie de moindre diamètre 19 dans laquelle est réalisé un canal circulaire 20 logeant deux joints toriques, respectivement 21-22, formant élément de guidage du piston 10 dans l'alésage 23 du cylindre 9 et par une deuxième tubulure 24 d'un diamètre plus grand dont l'extrémité arrière comporte une partie filetée 25 avec laquelle co-opère une bague filetée 26.According to the invention the piston 10 is substantially constituted by a first tube 18 having towards the front end a portion of smaller diameter 19 in which is formed a circular channel 20 housing two O-rings, respectively 21-22, forming a guide element of the piston 10 in the bore 23 of the cylinder 9 and by a second tube 24 of a larger diameter, the rear end of which comprises a threaded portion 25 with which a threaded ring 26 co-operates.

La tubulure 24 constitue par rapport à la tubulure 18 un rebord 27 pouvant coopérer avec l'extrémité arrière 28 du cylindre 9 et cette tubulure 24 présente encore des trous d'évacuation 29, situés à l'avant de cette tubulure 24.The tubing 24 constitutes with respect to the tubing 18 a flange 27 which can cooperate with the rear end 28 of the cylinder 9 and this tubing 24 also has discharge holes 29, located at the front of this tubing 24.

La soupape de régulation ou de surpression 11 laquelle est disposée co-axialement dans l'ensemble piston 10, est constituée par une tubulure 30 présentant sur la surface extérieure des cannelures longitudinales 31, cette tubulure 30 étant guidée par sa partie avant de moindre diamètre 32 dans l'alésage 33 de la tubulure 19 du piston 10, par la surface extérieure des cannelures 31 dans l'alésage 34 de ladite tubulure 18, par des joints toriques 35-36 logés dans une cavité circulaire 37 dans la tubulure 30 sur le tube magasin 8 et par une bague d'appui 38 pout le ressort 42 fixé sur l'extrémité arrière de la tubulure 30 dans l'alésage 39 de la tubulure 24 du piston 10.The regulation or pressure relief valve 11 which is arranged co-axially in the piston assembly 10, is constituted by a tube 30 having on the outer surface of the longitudinal grooves 31, this tube 30 being guided by its front part of smaller diameter 32 in the bore 33 of the tube 19 of the piston 10, by the outer surface of the grooves 31 in the bore 34 of said tube 18, by O-rings 35-36 housed in a circular cavity 37 in the tube 30 on the magazine tube 8 and by a support ring 38 for the spring 42 fixed on the rear end of the tubing 30 in the bore 39 of the tubing 24 of the piston 10.

La tubulure 30 présente encore une butée 40 pouvant coopérer avec une surface circulaire 41 du piston 10 sous l'influence d'un ressort de rappel 42 logé dans la tubulure 24 du piston 10 entre la bague d'appui 38 prenant appui sur la partie arrière de la tubulure 30 de la soupape 11 et ledit anneau 26 fixé dans la tubulure 24 du piston 10.The tube 30 also has a stop 40 capable of cooperating with a circular surface 41 of the piston 10 under the influence of a return spring 42 housed in the tube 24 of the piston 10 between the support ring 38 bearing on the rear part of the tubing 30 of the valve 11 and said ring 26 fixed in the tubing 24 of the piston 10.

L'effort excercé par le ressort 42 sur la soupape 11 est réglable au moyen de l'anneau 26 pouvant être déplacé par rapport à la tubulure 24 du piston 10.The force exerted by the spring 42 on the valve 11 is adjustable by means of the ring 26 which can be moved relative to the tube 24 of the piston 10.

Le fonctionnement du mécanisme selon l'invention est très simple et comme suit.The operation of the mechanism according to the invention is very simple and as follows.

D'une manière traditionnelle, une partie des gaz de propulsion de la cartouche est dérivée du canon 2 à travers les orifices 15-16 vers le piston 10 provoquant ainsi le déplacement de ce dernier avec comme effet une poussée sur le manchon 12 et ainsi sur le tringle 13 qui agit ensuite avec son extrémité libre sur l'ensemble des pièces mobiles 14 qui effectuent de la manière connue en soi, les différentes fonctions d'éjection de la douille tirée, le réarmement du système de mise à feu et l'alimentation dans la chambre du canon de la cartouche suivante, après quoi, par l'intermédiaire du ressort de rappel 17 le piston 10 sera remis en place.Traditionally, part of the propellant gas from the cartridge is derived from the barrel 2 through the orifices 15-16 towards the piston 10 thus causing the displacement of the latter with the effect of a push on the sleeve 12 and thus on the rod 13 which then acts with its free end on all of the moving parts 14 which carry out, in a manner known per se, the various functions of ejection of the drawn socket, the resetting of the firing system and the supply in the barrel chamber of the next cartridge, after which, via the return spring 17 the piston 10 will be replaced.

Lors du tir de cartouches faibles, le ressort 42 est taré de façon à maintenir la soupape de régulation ou de surpression 11 contre la paroi 41. Des lors, les gaz de propulsion arrivant dans la cavité 43 du cylindre 9 agissent sur les surfaces avant à la fois du piston 10 et de la soupape 11. Ils provoquent ainsi la susdite commande des pièces mobiles 14. Cette situation est illustrée à la figure 4.When firing weak cartridges, the spring 42 is calibrated so as to maintain the regulating or pressure relief valve 11 against the wall 41. Consequently, the propellant gases arriving in the cavity 43 of the cylinder 9 act on the front surfaces to both of the piston 10 and of the valve 11. They thus cause the above-mentioned control of the moving parts 14. This situation is illustrated in FIG. 4.

Lors du tir de cartouches dites "Magnum", une partie des gaz provenant du canon agit d'une part, sur le piston 10 et, d'autre part, sur la soupape 11 et la pression sur le ressort 42 étant plus forte que lors du tir de cartouches faibles on obtient non seulement un déplacement axial du piston 10 provoquant la commande des pièces mobiles 14 mais également un mouvement relatif axial de la soupape 11 par rapport au piston 10, d'une telle manière qu'une partie des gaz provenant du canon 2 peut échapper par les trous d'évacuation 29 prévus dans la tubulure 24 du piston 10. Cette situation est illustré à la figure 5.When firing cartridges called "Magnum", part of the gas from the barrel acts on the one hand, on the piston 10 and, on the other hand, on the valve 11 and the pressure on the spring 42 being stronger than during from the firing of weak cartridges one obtains not only an axial displacement of the piston 10 causing the control of the moving parts 14 but also an axial relative movement of the valve 11 with respect to the piston 10, in such a way that part of the gases coming from the barrel 2 can escape through the discharge holes 29 provided in the tubing 24 of the piston 10. This situation is illustrated in FIG. 5.

Grâce à l'échappement d'une partie des gaz par les trous 29 on réduit les écarts de pression sur le piston 10 ce qui favorise la constance de la vitesse de déplacement des pièces mobiles 14 et évite les vitesses de déplacement excessives qui pourraient nuire à la fiabilité de l'arme ou conduire à une usure excessive des pièces en mouvement.Thanks to the escape of part of the gases through the holes 29, the pressure differences on the piston 10 are reduced, which favors the constancy of the speed of movement of the moving parts 14 and avoids excessive speeds of movement which could harm the reliability of the weapon or lead to excessive wear of the moving parts.

Le fonctionnement du fusil de chasse semi-automatique étant tout à fait semblable au fonctionnement des fusils existants, le fusil selon l'invention présente comme avantages une étanchéité améliorée; une construction simple, éfficace et compacte, et un mouvement du piston 10 et de la soupape 11 dans le même sens et la même direction, d'où une réduction de la force de recul.The operation of the semi-automatic shotgun being quite similar to the operation of existing rifles, the rifle according to the invention has the advantages of improved sealing; a construction simple, efficient and compact, and a movement of the piston 10 and of the valve 11 in the same direction and the same direction, thereby reducing the recoil force.

Il est évident que l'invention n'est nullement limitée à l'exemple décrit ci-avant et illustré dans les dessins mais que des modifications peuvent être apportées à cet exemple, notamment en fonction de la nature et de la morphologie de l'arme envisagée, sans pour autant sortir du cadre de l'invention.It is obvious that the invention is in no way limited to the example described above and illustrated in the drawings, but that modifications can be made to this example, in particular depending on the nature and the morphology of the weapon. envisaged, without departing from the scope of the invention.

C'est ainsi, qu'entre autres, les éléments d'étanchéité, notamment les joints toriques peuvent être remplacés par d'autres systèmes d'étanchéité, par exemple des cannelures; que l'ensemble cylindre/piston/soupape peut se situer soit, comme décrit ci-avant en périphérie du type magasin, soit se situer en avant du tube, soit sur le coté du tube, soit encore à la place d'une partie de ce tube; que le ressort qui maintient la soupape 11 contre le piston 10 peut être différent d'un ressort de compression classique, etc.Thus, among other things, the sealing elements, in particular the O-rings can be replaced by other sealing systems, for example grooves; that the cylinder / piston / valve assembly may be located either, as described above at the periphery of the magazine type, or be located in front of the tube, or on the side of the tube, or even in place of a portion of this tube; that the spring which holds the valve 11 against the piston 10 may be different from a conventional compression spring, etc.

Claims (16)

Fusil de chasse semi-automatique perfectionné du type comportant un tube magasin (8) autour duquel est disposé un cylindre (9) dont l'intérieur est en communication avec l'intérieur du canon (2) et dans ce cylindre (9) et autour du tube magasin (8), d'une part, un piston (10) pouvant se déplacer sous l'effet d'une partie des gaz de propulsion et pouvant coopérer avec un manchon (12) pourvu d'une tringle (13) capable de solliciter l'ensemble des pièces mobiles (14), et d'autre part, une soupape de régulation ou de surpression (11), des ressorts (17-42) étant prévus pour contrôler, le retour du manchon (12) et de la soupape de régulation (11), caractérisé en ce que la soupape de régulation (11) est située dans l'ensemble piston (10).Improved semi-automatic shotgun of the type comprising a magazine tube (8) around which is disposed a cylinder (9) the interior of which is in communication with the interior of the barrel (2) and in and around this cylinder (9) of the magazine tube (8), on the one hand, a piston (10) which can move under the effect of a portion of the propellant gases and which can cooperate with a sleeve (12) provided with a rod (13) capable to request all the moving parts (14), and on the other hand, a regulation or pressure relief valve (11), springs (17-42) being provided to control, the return of the sleeve (12) and the control valve (11), characterized in that the control valve (11) is located in the piston assembly (10). Fusil selon la revendication 1, caractérisé en ce que la soupape de régulation (11) est disposée co-axialement dans l'ensemble piston (10).Rifle according to claim 1, characterized in that the regulating valve (11) is arranged co-axially in the piston assembly (10). Fusil selon la revendication 1 ou 2, caractérisé en ce que la soupape de régulation (11) peut se déplacer par rapport à l'ensemble piston (10), et que la soupape de régulation (11) et l'ensemble piston (10) peuvent se déplacer par rapport au cylindre (9) fixé au canon (2), et cela dans le même sens et la même direction.Rifle according to claim 1 or 2, characterized in that the regulating valve (11) can move relative to the piston assembly (10), and that the regulating valve (11) and the piston assembly (10) can move relative to the cylinder (9) fixed to the barrel (2), and that in the same direction and the same direction. Fusil selon la revendication 1, 2 ou 3, caractérisé en ce que l'ensemble piston (10) est bloqué, dans sa position de repos, entre le susdit cylindre (9) fixé au canon (2) et le manchon (12) qui est en relation avec le tringle (13), respectivement l'ensemble des pièces mobiles (14).Rifle according to claim 1, 2 or 3, characterized in that the piston assembly (10) is locked, in its rest position, between the said cylinder (9) fixed to the barrel (2) and the sleeve (12) which is in relation to the rod (13), respectively all of the moving parts (14). Fusil selon l'une des revendications précédentes, caractérisé en ce que la soupape de régulation (11) est bloquée, dans sa position de repos, entre deux points opposés, réalisés aux extrémités de l'ensemble piston (10).Rifle according to one of the preceding claims, characterized in that the regulating valve (11) is blocked, in its rest position, between two opposite points, produced at the ends of the piston assembly (10). Fusil selon la revendication 5, caractérisé en ce que la soupape de régulation (11) est sollicitée, sous l'effet d'un ressort (42), en permanence vers une surface circulaire (41) dirigée radialement dans l'intérieur de l'ensemble piston (10).Rifle according to claim 5, characterized in that the regulating valve (11) is urged, under the effect of a spring (42), permanently towards a circular surface (41) directed radially in the interior of the piston assembly (10). Fusil selon l'une des revendications précédentes, caractérisé en ce que l'ensemble piston (10) est sollicité, sous l'effet d'un ressort (17), en permanence vers une paroi (28) du cylindre (9).Rifle according to one of the preceding claims, characterized in that the piston assembly (10) is urged, under the effect of a spring (17), permanently towards a wall (28) of the cylinder (9). Fusil selon l'une des revendications précédentes, caractérisé en ce que l'ensemble de piston (10) est constitué par une première tubulure (18) logée dans l'alésage (23) du cylindre (9) et d'une deuxième tubulure (24) de diamètre plus grand, formant une butée (27) pouvant coopérer, d'une part, avec la paroi susdite (28) du cylindre (9) et, d'autre part, avec le susdit manchon (12).Rifle according to one of the preceding claims, characterized in that the piston assembly (10) consists of a first tube (18) housed in the bore (23) of the cylinder (9) and of a second tube ( 24) of larger diameter, forming a stop (27) capable of cooperating, on the one hand, with the above-mentioned wall (28) of the cylinder (9) and, on the other hand, with the above-mentioned sleeve (12). Fusil selon la revendication 8, caractérisé en ce que la tubulure (24) de l'ensemble piston (10) comporte des trous d'évacuation (29) situés à l'avant de cette tubulure (24).Rifle according to claim 8, characterized in that the tubing (24) of the piston assembly (10) has evacuation holes (29) located at the front of this tubing (24). Fusil selon la revendication 8, caractérisé en ce que la tubulure (18) de l'ensemble piston (10) est pourvue, à l'extérieur, d'au moins un joint torique (21).Rifle according to claim 8, characterized in that the tube (18) of the piston assembly (10) is provided, on the outside, with at least one O-ring (21). Fusil selon la revendication 10, caractérisé en ce que le joint torique (21) est logé dans une cavité (20) de la tubulure (18).Rifle according to claim 10, characterized in that the O-ring (21) is housed in a cavity (20) of the tube (18). Fusil selon la revendication 8, caractérisé en ce que l'extrémité arrière de la tubulure (24) de l'ensemble piston (10) est intérieurement pourvue d'un filetage (25) avec lequel peut coopérer un anneau de réglage (26).Rifle according to claim 8, characterized in that the rear end of the tube (24) of the piston assembly (10) is internally provided with a thread (25) with which an adjusting ring (26) can cooperate. Fusil selon l'une des revendications précédentes, caractérisé en ce que le plus petit diamètre intérieur de l'ensemble piston (10) est considérablement plus grand que le diamètre extérieur du tube magasin (8).Rifle according to one of the preceding claims, characterized in that the smallest internal diameter of the piston assembly (10) is considerably larger than the external diameter of the magazine tube (8). Fusil selon l'une des revendications précédentes, caractérisé en ce que la soupape de régulation (11) est constituée par une tubulure (30) logée dans un alésage (34) de l'ensemble piston (10), cette tubulure (30) étant pourvue, intérieurement, d'une cavité (37) dans laquelle est logée au moins un joint torique d'étanchéité (34) et extérieurement d'une bague d'appui (38) pouvant coopérer avec l'alésage (39) de la partie correspondante, plus spécialement la tubulure (24) de l'ensemble piston (10).Rifle according to one of the preceding claims, characterized in that the regulating valve (11) consists of a tube (30) housed in a bore (34) of the piston assembly (10), this tube (30) being provided internally with a cavity (37) in which is housed at least one O-ring seal (34) and externally with a support ring (38) capable of cooperating with the bore (39) of the part corresponding, more particularly the tubing (24) of the piston assembly (10). Fusil selon la revendication 14, caractérisé en ce que la tubulure (30) de la soupape de régulation (11) est pourvue à sa surface extérieure de plusieurs canaux longitudinaux (31) pour le passage des gaz.Rifle according to claim 14, characterized in that the tubing (30) of the regulating valve (11) is provided on its outer surface with several longitudinal channels (31) for the passage of gases. Fusil selon la revendication 14 ou 15, caractérisé en ce que la partie avant (32) de la soupape de régulation (11) présente un diamètre extérieur égal au diamètre intérieur de la partie avant correspondante de l'ensemble piston (10).Rifle according to claim 14 or 15, characterized in that the front part (32) of the regulating valve (11) has an outside diameter equal to the inside diameter of the corresponding front part of the piston assembly (10).
EP94201758A 1993-07-16 1994-06-21 Semi-automatic shotgun Expired - Lifetime EP0634620B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE9300749 1993-07-16
BE9300749A BE1007314A3 (en) 1993-07-16 1993-07-16 Improved firearm.

Publications (2)

Publication Number Publication Date
EP0634620A1 true EP0634620A1 (en) 1995-01-18
EP0634620B1 EP0634620B1 (en) 1998-08-12

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EP94201758A Expired - Lifetime EP0634620B1 (en) 1993-07-16 1994-06-21 Semi-automatic shotgun

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US (1) US5429034A (en)
EP (1) EP0634620B1 (en)
AT (1) ATE169736T1 (en)
BE (1) BE1007314A3 (en)
DE (1) DE69412384T2 (en)
ES (1) ES2122147T3 (en)
IL (1) IL110107A (en)

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EP3800424A1 (en) * 2019-10-04 2021-04-07 Glock Technology GmbH Gas-powered carbine
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US10488149B2 (en) 2016-05-09 2019-11-26 Bahtiyar Tasyagan Semi-automatic air rile with pneumatic system
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Also Published As

Publication number Publication date
US5429034A (en) 1995-07-04
BE1007314A3 (en) 1995-05-16
ATE169736T1 (en) 1998-08-15
DE69412384D1 (en) 1998-09-17
EP0634620B1 (en) 1998-08-12
IL110107A (en) 1998-08-16
ES2122147T3 (en) 1998-12-16
DE69412384T2 (en) 1999-03-18

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