FR2840397A1 - BI-CANON CHASSIS FOR INDIVIDUAL WEAPONS - Google Patents

Abstract

The invention relates to an ergonomic individual weapon chassis comprising two barrels of different calibers mounted parallel, horizontally and side by side. This arrangement eliminates the disadvantage of a superimposed assembly which leads to a differential in length of the barrels and ensures them an optimal dimensioning for the best output of the ammunition. This chassis provides a particularly ergonomic hold of the weapon thanks to its original design based on the use of a central barrel (1) tapered, under which are positioned three handles: a central (2) and one at each end. The front handle (3) has a triple role: ergonomic, common cocking lever for the two guns and integrated bipod. The central handle (2) ensures a rapid selection of the barrel thanks to a selector (16) placed under the trigger guard and an incrementation of the shooting distance telemetric by a selector (64) ergonomic moved by the thumb of the shooter. The rear handle (4) combines the housing of two magazines (22 and 23) with a stock function and provides a shortening of the weapon by a recoil of the barrel (s) / chamber (s) assembly above the shooter's shoulder. A telescopic bayonet (13) surrounding a barrel over a part of its length, simultaneously performs the role of flame arrester in the deployed position.

Description

claims 1 to 6 and 12.

TE AREA: CHENIQUE DE L'INVENHON

  The present invention relates to an ergonomic frame of an individual weapon organized according to trotting handles aligned under a main barrel comprising one or more barrels of different calibers and a telescopic bayonet, the handles advantageously ensuring the functions of magazine housing / magazine, combined lever

  of arming and integrated bipod integrated for the most advantageous mass estimate.

  This chassis makes extensive use of command and order transmission means (firing, detection of presence of chambered cartridge, charger, number of ammunition remaining ...) electrified including ['integration allows to remove up to 40 % of traditional percussion mechanisms, linkage references and others

  mechanical couplings with the corresponding weight and place gains.

  The reduction in production costs following the elimination of these penalizing parts in terms of machining and assembly opens the way to a new generation of weapons particularly attractive in terms of production and

to meet market expectations.

  Indeed, these gains in mass and size are a determining factor in the ability to integrate modern fire control lines (infrared, optronics, etc.) now inseparable from the weapons of the combatant of the future. It therefore becomes essential to reduce the volume as much as the mass of the muzzle feed systems in order to devote this weight gain to the reception of sophisticated systems intended for firing intelligent ammunition, the

  while remaining in a mass and volume purity compatible with operational imperatives.

  With this in mind, the present chassis advantageously replaces the conventional cocking levers and ejection / reloading mechanisms via a single pump distribution handle reducing the size and weight of the weapon. The elimination of the number of pieces traditionally used is optimal thanks to the development of a system for selecting the guns and firing functions from the central handle and the clever integration of a

  shooting bipod in the front pump handle.

  The chassis is so arranged that it also makes it possible to incorporate a telescopic bayonet / flame hider further reducing the bulk, eliminating mounting problems and guaranteeing the infantryman the availability.

  immediate and quick implementation of this accessory.

  The chassis finally includes the devices exposed in patents 0108250 and 0204731 such as microprocessor management, counter-detent security, firing of ammunition without cases, ['morphological identification of the shooter,

  the sequencing of the charger compartments and a port for connection to a computer.

  It is particularly suitable for firing ammunition without a small caliber case of the telescope type as described in these patents. Ammunition of medium caliber, of the intelligent type (grenade), wind preferentially organized according to the formula of the solid propellant attached to the rear of an ammunition, surrounded by a skirt formed of a material

  suitable for scratching and resistance to extraction force when ejecting ammunition without firing.

  The chassis thus challenged comprises: - a central barrel, - three handles aligned under the central barrel, - two barrel assemblies, - a single barrel selection command, - a single breech cocking command, - a retractable bipod, - a retractable secondary cocking lever, - two side-by-side loaders integrated into a handle, - a telescopic bayonet / flame arrester, - a central computer,

  - a firing line fairing (optronics, infrared ...).

ANI EEUR STATE OF THE TECHNIQUE

  Patent EP 0898 142 A 2 from Sommer + Ockenfuss GmbH describes a repeating weapon including the pistol grip

  also provides the pump function for the chambering of ammunition.

  This formula, in addition to its incompatibility of multi-barrel use since the pistol grip is directly managed at the breech, is characterized by an estimate of mass which is detrimental by the conservation of a percussion technology.

  1 0 conventional ammunition and also proves incomplete as evidenced by the absence of bipod for shooting at pose.

  Patent EP 0085 193 A1 from Heckler & Koch GmbH offers a complementary grenade launcher device for rifles. Replacing the handguard under the barrel, this launcher has its own firing system

  complicating the use of the weapon by making it heavier without of course the flexibility of automatic reloading.

  Patent EP 0 759 531 Alde Heckler & Koch GmbH proposes an automatic firearm comprising two barrels assembled back to back axially and the interchangeability of which rests on a maneuver for turning the assembly. This original formula, aimed at using one or the other of the barrels, in fact only allows the use of one at a time and, necessitating an inappropriate handling (reversal of the barrel assembly) in the case of A real commitment therefore implies the prior choice of the user. No device for incorporating

  bipod is not expected to be more than hand pump operation.

  Patent WO 93/13379 from Colt Manufacturing Company, Inc. describes a grenade launcher adapter whose particularity is to use the formula of M 203 mounted so that the recur produced passes through the same axis as

  that of the cannon. This system is limited since it offers no possibility of automatic recharging.

  The American patent No 6 314 672 S (or EP 0881 453 A2) of Heckler & Koch GmbH presents a weapon chassis whose design aims at ensuring great rigidity in order to avoid the fragmentation caused by the traditional lateral arm levers. The Ggne of this chassis strongly evokes that described in patent No 6 250 194 of the same manufacturer analyzed below. This structure turns out, however, by its volume, particularly bulky and therefore generating a high inertia in handling. No bipod is planned, which for such a bulky and heavy weapon raises questions about the depth of the reDexion of the inventors as in

  further attests to the persistence of a limited weapon lever to this function.

  The present patent, on the other hand, concentrates a maximum of applications (cocking levers, bipod) in a minimum of orders (a single handle / distribution pump for two cylinder heads) and leads to a practical and light solution. The patent No. 6,250,194 from Heckler & Koch GmbH describes a coupling system between a previously shortened assault rifle / submachinegun and an automatic grenade launcher. The mounting of

  The whole leads to an imposing weapon, heavy to maneuver and complex, comprising two superimposed barrels.

  The firing mechanism is common, housed at the level of the firing handle and is based on a mechanical coupling of the two sets which each have their own cocking lever, causing a painful dupGcation in terms of parts and weight. No pump operation mechanism is provided and the assembly of the two weapons is held in the firing position by supination of the hand affixed to the front handguard, imposing a twisting force on the wrist which generates muscle fatigue unsuitable for control. raising the weapon. The two guns wind superimposed and parallel, this arrangement leads, due to the presence of the respective supply systems, a different length of the guns. This difference is necessarily made for the benefit of one caliber and to the detriment of the other. Here it is the small caliber, the insufficient length of the barrel of which is unsuitable for the optimum performance of the ammunition, without prejudging the risk of unburned propellant powder. Indeed, ammunition is always defined for a minimum barrel length below which the combustion of the propellant is incomplete and causes waste likely to put an end to the weapon in the short term, all without prejudice to the loss of power of the ammunition. This superimposed arrangement of barrels leads in addition to a penalizing length of the weapon and a strong

  inertia, prejudicial to its lightness as to the ease of its handling.

  No bipod is evoked for the shooting in pose, which means that this accessory, essential with a driving of

  sophisticated shooting, is to be expected with the corresponding increase in weight and volume.

  Patent EP 0 416 642 A 2 describes a small caliber weapon comprising two barrels with a dedicated magazine, located one above the other. A mechanical firing control device is common to the two guns. The weapon 1 0 naturally comprises two weapons levers and its formula can not be justified, in the present case of two guns of the same caliber, only to prevent a possible containment of one of them and to participate in an increase sensitive to the autonomy of fire. Apart from these two advantages which are very questionable with regard to the use of an elongated charger or else of two chargers assembled in parallel and head-to-head as it is now practiced, the formula offers many disadvantages. By virtue of these, the increase in mass (two guns, two percussive masses, etc.) and in the number of parts making up the weapon, without prejudice to the size of the weapon in

  because of the different lengths introduced by the formula of the superimposed guns.

  Patent 94 07230 of Lacroix Tous Artifices offers a superimposed dual-barrel weapon intended for firing ammunition of different calibers. The weapon, intended to be suspended under the forearm, raises many questions in terms of ergonomics that the inventor does not address: muscle fatigue imposed by the suspension of the weapon, precision of a shot in total absence of setting of the weapon, control in yaw (depointage), impossibility of

  change of magazines without licking the weapon ...

  The superposition of calibers poses the thorny problem of the differential length of the barrels, forcing the shortening of one for the benefit of the other. The inventors preferred an arrangement to 90 chargers for

  reduce this disadvantage to the detriment of the overall size of the weapon.

  The inventors have developed a special system for holding the ammunition by rotating the barrel which has a window whose opening, caused when it is in front of the power supply unit or charger, should

  allow the introduction of ammunition. The rear end of the barrel is closed and works by "mortar effect".

  The inventors do not specify how the ammunition passes from the magazine to the chamber / mortar and the indexing (line 33, page 4) of the rotation of the barrel cannot be enough to convince the man of the art of the absence of problem power. Indeed, this is simply impossible with regard to the drawing (fig. 3, plate 2/4) provided by the inventors since the wind magazine compartments are placed side by side and the ammunition will necessarily telescoped during their presentation. resulting in a blockage. One solution would be to adopt, as provided in patent 0108250 owned by the author of this patent, a differential slope angle for the walls of the charger. In addition, no details were given as to the ammunition supply to the magazine or its engagement or placement on the weapon: designed as present, the magazine was not viable since no device

  likely to keep ammunition in place is not mentioned.

  No device for keeping the ammunition in the chamber before firing is also mentioned: the presence of scratches inside the barrel could provide an answer, failing this the ammunition would be condemned to sink from the barrel oriented towards the teas! No mechanism for removing ammunition that has been turned upside down either. This is perhaps due to the forecast, by the inventors, of an orifice provided in the base of each case to cause its ejection during tin This original formula weakens the ammunition by breaking the seal and poses the problem of [ extraction / ejection without ignition of a chambered cartridge. Indeed, the introduction of a cartridge does not signify its fire (drive, defective ammunition ...) and rather a withdrawal of the magazine (which does not seem to be the case here) followed by a rotation of the barrel would perhaps open the barrel feed window and

  allow the fall by gravity of the ammunition engaged.

  In summary, the Lacroix formula is impractical to use from an ergonomic point of view, its feeding system devoid of an extraction mechanism can easily cause arrest of the stop. No bipod is e $

  integrated and the arrangement of the magazines has 90 appreciably increases the size of the weapon.

  DESCRIPTION OF THE INVENTION The invention consists of an individual weapon chassis intended for the semi-automatic and automatic firing of two cannons of different calibers mounted parallel, horizontally and side by side. This arrangement eliminates the drawback of a superimposed assembly which leads to a different length of the barrels and ensures them an optimal dimensioning for the best output of the munitions. Indeed, the superimposed mounting of the barrels requires taking into account the useful volume of the supply system generally corresponding to 25% of the

  length of the weapon, leading to the amputation of at least as much of the length of the barrel concerned.

  This chassis provides a particularly ergonomic holding of the weapon thanks to its original design based on the use of a tapered central barrel, preferably of section but not exclusively hexagonal, under which wind positioned trotting handles: a central and one at each end . The organization and the presence of these handles

  wind intended to perform several roles or functions described below.

  Front handle: o ensuring a triple role: ergonomic, of common arm lever to the two guns

and integrated bipod.

  o reduce the number of parts and the size of the weapon by integrating a bipod

  telescopic with automatic deployment.

  c provide a primary advantage in terms of reactivity for the benefit of the user

  allowing the bipod to be deployed in a fraction of a second.

  O counter the raising of the weapon during the tin o exert a pressure along the central axis of the tie down towards the shoulder to ensure a comfortable maintenance of the weapon and reduce the fatigue of the user content the effects

  recur, especially in bursts.

  O eliminate the fatigue induced by the weapon's supine behavior and the twisting of the wrist imposed by the traditional handguard (Fames, M-16 ...) and this by providing

  a natural position of the hand which remains in the axis of the wrist.

  O guarantee a remarkable reactivity to the user in the event of a lack of ignition of ammunition by carrying out the operations of chambering the extraction of ammunition with the front handle, without having to modify the holding of the weapon to grasp the cocking lever as on classic cluster weapons, M-16, Styer-Aug ...) which then expose

dangerously the user.

  Central handle: o ensure a quick selection of the barrel thanks to an ergonomic selector placed under the trigger guard. o ensure an incrementation of the telemetry shooting distance thanks to a selector (64) 4 0 ergo no mic moved by the shooter's thumb,

  o provide housing for the electronic management of the weapon and batteries.

  Rear handle: o ensure a perfect and always identical setting of the weapon on the shooter's shoulder for the

  better precision, especially in reflex shooting.

  o provide a shortening of the weapon by recur of the whole

  cannons (s) / chamber (s) above the shooter's shoulder.

  o place the medium axis of the guns above the shooter's shoulder in order to systematically present the line of sight in front of the shooter's eye, reduce the inclination of his

head and favor rex fire.

  o combine the housing of two chargers arranged side by side with a stock function. Rear and central handles: o allow a particularly solid two-handed grip for the use of the bayonet.

  o increase, in this configuration, the extension of the weapon.

  Front, central and rear handles: o provide an exceptional ergonomic grip of the akin weapon to promote a position conducive to shooting accuracy and better cushioning of the recur, in particular

in raising.

  The "buO-pup" type design of the chassis is here improved by an accentuated recur of the barrels whose fairing (1) exceeds the rear of the stock / container (4) of charger forming an ergonomic cheekpiece (5) guaranteeing thus taking a strictly identical position during each shot, especially reflex shots where the focus is often erratic. Indeed, a 10 to 20 mlm offset from the height placement of the stock on the shoulder is easily observable on weapons fitted with a conventional stock, resulting in a modification of the inclination of the head of the

  marksman and the line of sight with the eye.

  This new conformation of the weapon therefore offers the remarkable advantage of presenting the reticles of shooting directly at the height of it limiting the inclination of the head so that the shooter perceives without delay the line of sight The arrangement of the components (stock and handles ) is also particularly suitable for controlling the raising of the weapon at the end. Indeed, the presence of a pump-handle at the front easily allows the shooter to produce a retaining force of the “pinch” type which counter Naturally any tendency to raise the weapon during a burst fire. This chassis is perfectly ambidextrous to use thanks to a gun selector (16) located on the central handle (2) ensuring the double function of selection (right or left lateral position) of the caliber and of launching (central position) the shots from Telemetric. The electronics of the weapon automatically ensures the presentation in the collimator

  reticles and firing parameters adapted to the selected ammunition.

  A telescopic bayonet (13), surrounding the small caliber barrel over part of its length, ensures

  paraOelement the role of flame arrester in the deployed position.

Description of plates 1 to 717

  Plate 1M has 1 figures (1) describing a sectional view of the chassis at the level of the barrel of smaller caliber.

  Plate 2/7 includes 1 figure (2) describing a sectional view of the chassis at the level of the large caliber barrel.

  Plate 3/7 has 4 figures (3, 4, S & 6) showing the arrangement of the chargers arranged paraOeles with the

  selection / blocking mechanisms for cylinder heads.

  Plate 4/7 has 1 figure (7) showing the mechanism of the handle / pump / bipod assembly.

  Plate 5/7 comprises 1 figure (8) presenting a sectional view of the deployed bipod weapon.

  Plate 6/7 includes S figures: (9 & 12) presenting the sectional view 00 'of the constituent elements of the handle / pump / bipod, (10) presenting the sectional view of the support block guide of the cocking rod in the retracted position and (11) deployed and (13) presenting the view from below of the front of the chassis with the cone of

  deployment / retraction of the half handles / pumps.

  Plate 7/7 has 3 figures (14, 15 & 16) showing the mechanism of telescopic bayonet and selector

  ergonomic telemetric incrementation.

  DESCRIPTION AND FUNCTIONING OF THE CHASSIS (PLATES 1/7 7/7)

  The chassis (1) chosen as a demonstration is preferentially but not exclusively an assault rifle, the

  principle of the invention which can be extended to all calibers and types of light weapons.

  The chassis is made up of a carcass, body or barrel (1) central comprising a cradle (6) on which the cannons are mounted (8 & 9) and therefore has a limited number of parts. This characteristic should lead to

  significant economic repercussions in terms of production cost, shooting accuracy and maintenance.

  The weapon includes lanches 1 to 7/7): - (1) carcass or was central, 1 0 - (2) central handle, - (3) handle for front pump, - (3 bis) half handle for front pump, - (4 ) rear hook handle, - (S) ergonomic cheek piece, 1 5 - (6) barrel support barrel, - (7) small caliber barrel, - (8) medium caliber barrel, - (9) return spring (or recuperator) of lower caliper, - (10) larger caliber shock absorber, - (11) rescue aim increase, - (12) rescue aim handlebar, - (13) telescopic bayonet, - (14) small caliber breech, - (15) medium caliber breech, - (16) barrel selector, - (17) magazine stopper for small caliber ammunition, - (18) magazine stopper for large caliber ammunition, (19) connection port to a computer, - (22) charger with double compartment of small caliber ammunition, - (23) medium caliber wall charger, - (24) self-ignition threshold detection thermistor (cook-of0, - (25) batteries or backup cartridge for battery a fuel, - (26) rod and rod orientation fork (27) for cocking the cylinder heads, - (27) rod for rearming the cylinder heads, - (28) return slide in the front position of the rod (27) cocking the breeches, - (29) small rod breech hook reception housing, - (30) rod hook reception housing for large caliber cocking, - (31) cylinder head cocking rod hook, - (32) vertical flat face of the cylinder head cocking rod hook, - (33) cylinder head selector / blocking rocker, - (33 bis) slot or housing reception of rocker arm (33) selection of cylinder heads, - (34) trigger of pump handle, - (35) two (2) telescopic bipod extension, - (36) telescopic bipod elements retainer, - ( 3 7) length adjustment stop for telescopic bipod elements, - (38) erasable lug for locking in extended position of telescopic bipod elements, - (39) supporguide block of the pump handle, - (40) erasable stop of neutral position of deflection in roll of the support / guide block (39), (41) coupling pin of the support / guide block (39) with the block (50 ), (42) pivotlsupport block of the two half-handleslpump, - (43) sleeve / support of half-handle, - (44) locking stop of the pivotlsupport block in its housing of the supportlguide block, - (45) erasable stop of position neutral of roll movement of the pivotlsupport block (42), - (46) lateral deflection axis of half-handlepump, - (471 spring (s) (spiral or U-shaped) of extension in the deployed position of the half-handleslpump, - ( 48) half-handle spacing stopper, - (49) retaining lug in retracted half-handle position, - (50) support block / guide for rod and cocking lever, - (51) cocking lever retractable - (52) widening of the arming lever section, - (53) arm of the arming lever, - (54) return spring in the deployed position of the armament sink, - (55) flexible connection (ball joint, axis ... of travel in elevation and azimuth) of the rod with the guide support block (50), - (56) guide rod of the handle / pump assembly , - (57) return spring of the support / guide block (50), 1 0 (58) travel stop of the supportlguide block (50) of the rod and of the cocking lever (51), - (59) groove of erasable stop circulation (40) of neutral of the support / guide block (39), - (60) travel window of the pump handle assembly, - (61) deployment / retraction cone of the pump handles, - (61 bis) pump handle groove, 1 5 (62) cocking rod lifting cam, - (63) rocker spring (33) for selection of cylinder heads, - (64) lever (64) rectangular (or crescent-shaped so as to be moved by the shooter's thumb), - (65) extensible bayonet retainer, - (66) harmonized holes for flare covers, (67) cartridge retainer, - (68) display screen for shooting parameters, - (69) cond fairing shooting range,

  - (70) battery housing (fuel cell).

  SELECTION DISTRIBUTION OF CANNONS (Plate 317, fig. 3 to 6)

Selection of cannon breeches.

  The barrel or caliber is selected by means of a selector (16) with two or three positions (left -

  neutral - right) located on the central pistol grip (2) under the trigger guard so as to be permanently accessible by the middle finger (finger). This selector comprises at its end a mechanism (fork, engagement pin ...) for cooperation with the rod (27) to rearm the cylinder heads so as to ensure the displacement of said rod towards

  the appropriate cylinder head (14 or 15) pow its engagement simultaneously with the tilting of the precise selector.

  This selector also ensures the triggering of telemetric fire (laser ...) when a pressure is exerted towards the rear of the weapon as well as the simultaneous presentation of the parameters corresponding to the caliber chosen in the sight of the tin pipe. Manccavrelengagement of the breeches (plate 317, fig. 3, 4, 5 & 6) In order to ensure a flawless engagement of the breeches (14 & 15) of each barrel by the cocking rod (27), these are characterized in that they comprise on their internal lateral face a reception housing (29 & 30), factory in the mass in enforcement, in the form of a symmetrical female imprint at the end of the rod (27)

  comprising a hook (31) with which they cooperate.

  The hook (31) of the rod has a flat face (32) perpendicular to the axis of said rod so as to ensure a free thrust on the cylinder head during recur of the pump handle (3), as well as an inclined face intended

  a ['engagement of the female housing hook of the cylinder heads during a return to [' before these rear.

  The female hook of the cylinder head housings (29 & 30) is intended to be engaged laterally by that (31) of the aforementioned rod and the said reception housings are so designed that they allow a vertical movement of the said rod capable of promoting the disengagement of its hook (31) from the female hook of the cylinder head housings during a lifting. In this case, the end of the rod always remains, under the action of distributing the rod (26) of the cylinder head selector, engaged in the housing of the cylinder head selected so as to ensure, during a recur of the

  handle handles the rear movement of said cylinder head.

  This vertical deflection of the rod in the cylinder head housings has a double purpose: - to guarantee that the rod can always ensure the recur of the cylinder heads during a maneuver of the handle / pump with the weapon being returned, ensuring, in normal operation, extension of the hook (31) of the rod by the cylinder heads

  during a return to the front under the action of their recuperating spring.

  Sufficient play ensures lateral engagement without friction of the cylinder head housings by the rod.

  Rod / cylinder head coupling device (plate 1/7 & 3/7, fig. 1, 3, 4, 5 & 6) In order to authorize the recur of the cylinder head during firing, a linkage separation device is brought to the level of relaxation. This device ensures, during a pressure exerted on the detent tail, a lifting of the cocking rod (27) by a cam (62) integral with the detent and mounted in direct contact with the rod or by the intermediary a vertical plug driven by said cam. Pressing the trigger tail causes an upward movement of the cam which lifts the cocking rod and causes it to separate from the cylinder head concerned (14 or 15) and this attempts to keep the trigger pressed. there is therefore no risk of catching the

  breech during sustained fire (burst). Interruptions in firing when the trigger tail is released, the

  rod lowers and the bolt engages the

  hook of said rod during its forward movement.

  1 5 Operating principle (plate 3/7, fig. 3,4, 5 & 6).

  When tilting to the right or to the left of the barrel selector, its rod (26) causes the corresponding displacement of the rod (27), the end of which engages the symmetrical housing of the breech concerned (14 or 15). In order to avoid that a violent inertial shock applied along the central axis of the weapon and towards the rear does not entail the recur and the untimely opening of the breech which has not been selected and whose female housing hook is not engaged by the rear rod (27), an unselected cylinder head locking device is installed. Selective locking device for cylinder heads (plate 3/7, fg. 3, 4, S & 6) This device is made up of housing (33 bis) for reception or slots on each cylinder head and a rocker (33) in crescent shape or V characterized in that it is mounted opposite the slots between the two breeches and articulated on an axis parallel to the central axis of the weapon, so that the rear rod (27) passes inside of the V in order to cause, during the lateral displacement of the aforementioned rod, a pivoting of the rocker of which a branch engages the slot (33 bis) for receiving the breech of the barrel not selected causing its blocking and simultaneously clearing that of the breech selected causing his release. A spring (63) acting in compression on

  the top of the V or crescent will ensure a clean and precise tilting.

  DESCRIPTION AND ROLE OF THE HANDLE / INTEGRATED BIPIED PUMP (Boards 4, 5 & 6/7, fig. 7 i 13)

  The handle / pump / bipod assembly consists of the following components.

  1. The integrated bipod assembly consists of: - (42) a pivot block / support of the two half-handles / pump, - (3) a front handle composed of two half-handles (3 bis) side by side, - (43) a sleeve / support for each half-handle, - (46) a lateral deflection axis by half-handle / pump, (47) spring (s) (spiral or U-shaped) for extension in the deployed position of the half handles / pump, - (49) a retaining lug in the retracted position by half-handle, - (35) two telescopic extension elements of bipod by handle, - (36) a stopper of telescopic elements of bipod by handle, - (3 7 ) a length adjustment stop for telescopic bipod elements by handle, - (38) an erasable lug for locking in the deployed position of telescopic elements by bipod foot,

  - (48) a distance stop for each half-handle.

  ^. A support / guide block (39) of the preceding bipod assembly: - (39) a support / guide block of the handle assembly, - (34) a trigger secured to the block (39) support / guide of the pump assembly , - (40) an erasable stop of neutral position of roll movement of the support block guide (39) of the handle / pump assembly, 1 0 - (41) a coupling pin of the support block / guide (39) of 1 pump handle assembly with the supporguide block (50) of the cocking rod, and simultaneous swelling of the cocking lever (51), - (44) a stop for locking the pivotlsupport block (42) in its block housing supportlguide (39), 1 5 - (45) an erasable stop of neutral position of roll movement of the pivotleupport block (42)

half-handles.

  3. Support block guide (50) of the rod (27) and cocking lever (51) assembly: - (50) support block / guide of the rod and cocking lever, - (51) a cocking lever retractable secondary, - (52) widening of the cocking lever section, - (53) arm of the cocking lever, - (54) a return spring in the deployed position of the cocking lever, - (27) a rod for cocking the cylinder heads, - (55) a flexible connection (ball joint, axis for travel in elevation and azimuth) rod with the block

support / guide (50).

  4. A device for guiding the handle / pumpbipod assembly: - (56) guide rod for the support / guide blocks (39) of the handle and pump and supporguide assembly (50) of the rod (27) and of the lever armament (51), (57) return spring of the support / guide block (50), - (58) travel stop of the supportlguide block (50) of the rod and rearmament lever (51), - (59) groove circulation of an erasable neutral stop (40) of the support / guide block (39)

['poigneeslpompe set.

  5. A conical window (60) for deflection of the pump handle assembly fitted on the lower face of the front of the central drum: - (60) deflection window for the pump handle assembly, - (61) deployment cone for retraction of the half -Handles / pumps

  - (61 bis) pump handle stroke groove.

Principle of operation.

  The maneuver of the poigneeslpompelbipied assembly is carried out by pressing the trigger (34) then by executing a

  backward movement to load a cartridge or forwards to implement the integrated bipod.

Chambering / cartridge extraction.

  During the manual recur of the handle / pump the cocking rod, after selection of the suitable barrel and engagement of the

  corresponding housing of the breech, entrar ^ ne said breech towards the rear for an ammunition extraction.

  The breech and the wind rod secured by the hook (31) in order to prevent any risk of inadvertent opening of the selected breech under the effect of an inertial shock. Recall that the rocker (33) immobilizes

the other breech.

Deplolement of the integrated bipod.

  1 0 The integration of the bipod in the handle / pump provides the most advantageous gain in space and mass for the best ergonomic. The bipod is implemented by pressing the trigger (34) for locking the handle / pump assembly and then pushing the handle forwards, taking care to open the hand in order to promote the immediate separation of the half-handles. The effect of this action is to separate the support / guide block (39) from the handle / pump assembly 1 5 from the support / guide block (50) of the rod (27) and of the secondary arming lever (51). The support block (50) remains in abutment (58) of travel of the guide rod (56) mounted screwed / pinned to the chassis at its end detent side of the weapon. The rod adopts an oval section (so the long axis is vertical) along the length correspond to the travel of the support block guide (50) of the rod (27) and of the secondary armament lever (51), puts, on the rest of the length, a round section of diameter equal to that of the major axis of the oval of the previous section. This arrangement provides a stop effect (58) for the support / guide block (50), the section of the hole in which the rod (56) slides is of the same oval as that of the rod, preventing any displacement beyond the planned race. The hole in the guide block (39) of the handle / pump assembly, on the other hand, is round so as to ensure a sliding of

  ['handle / pump assembly over the entire length of the rod (56).

  The guide rod has two trigger engagement notches (34) corresponding to the positions: neutral (cocking lever at rest) and deployed bipod, as well as a groove (59) for circulating a stop (40) effa , cable

  neutral position (vertical) of roll movement of the support / guide block of the handles / pump assembly.

  The forward movement of the handle / pump assembly results in the deployment of the following elements (plates 4, 5 & 6M, fig.7al3): - tilting of the secondary cocking lever (51) towards the teas which was kept retracted in horizontal position under [ action of the pin (41), for coupling the support block guide (39) of the handle / pump assembly with the support block / guide (50) of the lever (51), said pin (41) cooperating with the cheek piece (53 ) in order to ensure deployment, assisted by the return spring (54), or retraction to said lever (51) depending on whether the two blocks (39 & 50) separate or come closer. - unlocking of the half handles (3 bis) held tight side by side by the cocking lever (51) which, in the horizontal position, exerts a vertical pressure of teas at the top on the lugs (49)

  favoring the bringing together of said half-handles.

  - opening of the angle of the half-handles, under the action of (or, in the case of a single reverse U-shaped spring) spacing springs (47), when the opening of the cone (61) of the

  window (60) fitted under the barrel frame.

  - automatic extension of the bipods by opening the stops (36) of telescopic elements of each half-handle which, during the movement before the handle / pump assembly, press against the widening (52) of the section of the cocking lever (51) causing them to be unlocked. maximum spacing of the half-handles which, when the handle / pump assembly approaches the displacement stop forwards, leave the support on the cone (61) of the window (60)

  under the frame was to rest on the spacing stops (48) in the deployed position.

  The engagement by the trigger (34) of its front stop housing ensures the retention in place of the assembly

handle / bipod pump deployed.

  The bipod then has the following advantages: - rotation, after erasing the stop (40), around the guide rod with a clearance limited by the opening of the cone (61) of the window (60) brought under the barrel frame , especially

  appreciable for making vertical corrections of the line of sight.

  - rotation in yaw, after erasing of the neutral stop (45) of the pivot block / support of the last handles / pump to offer an azimuth scan of the line of aim, the trigger (34) ensuring

  the role of angular travel stop.

  Note: the nature of the invention would not be changed if the blocks (39) support / guide of the handle / pump and support guide guide (50) of the arming rod (27) were guided by one of the barrels of the chassis , the racing stop (58)

  1 0 of the second block (50) which can then be brought back onto the chassis.

  The retraction of the bipod during the rear movement of the handle / pump assembly is carried out with the following operations (plates 4, 5 & 6/7, fig. 7 to 13): - a pressure on the trigger (34) followed by 'a recur (place the hand flat on the two handles) of the' handle / pump assembly for ['engagement, after indexing to neutral of the block (42) 1 5 pivot / support, of the cone (61) of the window ( 60) brought under the frame of the chassis by the half handles causing their progressive approximation when the block (39) support / guide of the handle / pump assembly arrives, indexed on the neutral by the erasable stop (40), in contact with the support / guide (50) of the arming rod (27), its pin (41) penetrates into its reception housing correspond to said support / guide (50) pushing simultaneously on the busc (53) of the arming lever (51 ) causing its horizontal retraction

and towards the front of the chassis.

  - The cocking lever (51) then exerts pressure on the lugs (49) for holding the half-handles in the retracted position, forcing them, bringing them closer together and eliminating any friction during

  movements of the pump in its race groove (61 bis) located under the chassis barrel.

  - press on the stopper (37) for adjusting the length of telescopic elements of each half handle so as to retract them in their housing by taking out the pins (38) (be careful it is preferable to carry out this operation once that the trigger (34) has engaged its pump function stop housing, at the risk of placing the retainers (36) of telescopic elements of each handle in abutment against the widening (5 2) of the section of the cocking lever

causing them to unlock).

  Assembly / disassembly of the pump handle / bipod assembly (plate 4, 5 & 6/7, fig. 7 to 13).

  After having removed the upper part of the chassis casing cover, engage the supporguide block (50) of the rod and the cocking lever then its return spring (57) on the guide rod (56) on the side of the oval section. Then engage on the other side (round section of the rod) the block (39) supporguide of the handle / pump assembly taking care beforehand to mount the block (42) pivot / support of the two half-handles / pump and to secure it with the stopper (44) for locking the pivot / support block (42) which is preferably pinned in its housing of the support / guide block (39). Make sure that the block (42) pivots perfectly once mounted. Press / screw the oval section guide rod into its chassis housing and pin the assembly after indexing (large oval section axis

vertical rise).

  The mounting of the half-handles in the pivot / support block (42) is effected by engaging the axes of rotation of each sleeve / support (43) of the half-handle in their corresponding reception housing of the block (42) taking care to position and compress their respective return springs (47) then by pinning each half-handle with the aid of an axial pin. Another formula for recalling the half-handles in the spread position would consist in using a single spring with a reverse U-shaped cross-section, the branches of which engage a housing (slot) fitted in each sleeve / support (43) of the half-handle or even the embodiment in a single piece of the block assembly (42) and of the two sleeves / supports (43) of half-handles made of a composite material endowed with an elasticity conducive to the spacing of said half-handles. The telescopic elements (35) of each wind handle produced using a technology similar to that of ammunition loaders (welded folded sheet, composite material, extruded tube, etc.). A

  it comes out, fits in each half-handle (composite, metal foundry, etc.), subject to the full deployment of one foot.

  The length adjustment of each foot is obtained by pressing on the retainer (31) in order to engage the suitable notch.

  The surpassable joining of the two telescopic elements (35) in the deployed position is carried out via a lug (38)

  erasable either by inertial shock (palm of the hand on the end of the foot) or by pressure on the end of the lug.

  The half-handles are mounted on their sleeve / support (43) by fitting and pinning. The retainer (36) of telescopic bipod elements in the retracted position is preferably secured to the sleeve / support (43) and

  can advantageously be made in one piece composite with the latter.

  ERGONOMIC FUNCTION CONTROL DEVICE (plate 7/7, fig. I 5) The present chassis being designed to accommodate a modern firing line (infrared, optronics ...) it includes at the shooter's disposal a series of commands, the ergonomics is part of the same concern for efficiency and simplification as the handle / pumpelbipod assembly. Thus an ergonomic function control device is established, it consists of a selector (64) (rectangular or crescent-shaped to accommodate the shooter's thumb) has each side (ambidexterous) on the central handle and substantially vertically or parallel to his

  axis, at the same height as the trigger tail so as to be operated by the shooter's thumb.

  A pressure of the thumb forwards causes the pivoting or the displacement of this lever with concomitant action of the line of shooting This lever is repeated on each side of the weapon so as to offer a perfect ambidexterity

of use of the chassis.

  An immediate application of this device is the desired modification of the shooting distance (incrementation / decrementation by steps of one to two meters for example) This control arrangement can advantageously be applied to the modification of the shooting distance ( increment / decrement by step of one to two meters for example) previously developed by a telemetre whose triggering is operated by pressure on the rocker (16) gun selection, or mounted on all weapons (automatic pistols ...) with a charger in the handle in order to trigger the opening of the retainer to said charger to cause the ejection of the latter with a simple pressure of the thumb forwards without having to take off

the hand of the weapon.

  BAYONET / TELESCOPIC FLAME COVER (plate 717, fig. 14 to 16) In order to reduce the bulk and therefore the overall weight of the weapon, to eliminate the number of operations that must

  accomplishing the infantryman in a stress phase, the present chassis includes an integrated extendable bayonet (13).

  This bayonet is characterized in that it consists of an open tube, tapering at one end, mounted telescopically and sliding around a barrel (preferably the one of lesser caliber). A spring retainer (65), integral with the bayonet, engages two stop notches located on said barrel, one close to the cradle (6) and the other to

  The end correspond respectively to the retracted and deployed positions.

  Holes (round, oval, rectangular ...) (66) possibly harmonized with the pitch of the stripes of the barrel wind fitted on the periphery of the bayonet in such a way that when it is deployed they give it the role of cache -mesmes. This arrangement of the bayonet is particularly advantageous because it leaves the infantryman the benefit of his personal dagger (previously acting as bayonet) as the last means of defenselsurvival if he were to lose his weapon. In addition the integration of this accessory within the weapon eliminates all the tedious and long operations of assembly / demon / age, reduce the dangers of handling by offering the possibility of being implemented only

  when the situation ['imposes and advantageously combines the function of cache -ames.

  This bayonet can advantageously be adopted identically in the case of a single-barrel weapon.

  LARGE CONTAINER LOADER OF TANTEM AMMUNITION (Boards 1/7, fig. 1) The devices exposed in patents 010825O, 0204555 and 0204731, such as the principle of charger with two tandem compartments, wind here resumed. A brief reminder of the principle of feeding by two compartments

sequences is reported here.

  The advantages, without common measure in terms of reduction of congestion, that allow ammunition without case, can be taken advantage of to increase significantly the number of cartridges that lton can reasonably

place in a charger.

  Recall that ammunition without a case offers a reduction in weight and length of up to 50%. Thus, with equal projected equal mass (the powder and the primer being consumed at the start of the coup), the weight of an ammunition without

  etui is close to the only beautiful classic corresponding.

  This translates, for a standard cartridge of a caliber of 5.56 m / m by way of example, by a reduction in its length due to the elimination of the mass of the traditional case. Overall length of around 30 m / m

  is now possible instead of the 87 m / m of conventional ammunition.

  The positioning of two cartridges in tandem according to the invention would occupy only a volume of the order of 60 to m / m in length still less than that occupied by conventional ammunition! The charger model (22) according to the invention is therefore based on the principle of two compartments placed in tandem, each containing a stack of cartridges arranged in staggered rows or on battery-powered trots. These compartments cooperate via common lips intended to convey the ammunition towards the ramp

  gun alignment and wind sequentially controlled by a coupling device.

  The coupling device consists of a stopper (fig. 1, 67) of cartridges, articulated on the rear wall of the magazine well of which it is secured via an axis passing through the carcass. This retainer is composed of two arms substantially at right angles, one horizontal and the other vertical. The horizontal arm adopts a barrene shape, pivoting on a limit angular sector around the axis of the stopper in a reception housing fitted in the internal or external wall of

the carcass.

  The vertical arm of the retainer ends in a horizontal stop intended to prevent, when the magazine is engaged in the arrne, the cartridges of the rear compartment go up to the level of the lips to be

  driven by frowning at each passage of the cylinder head.

  The retainer is held in the front or projecting position under the action of a spring located in the receiving depression of its angular displacement. n is kept locked in this position under the action of a hook which immobilizes

his horizontal arm.

  Each compartment conveyor has one or two buttons, if necessary, sliding in a corresponding vertical groove provided on the side faces of the loader. A thumb action on a button ensures

  manual lowering of the conveyor for the introduction of the cartridges.

  The button of the front compartment transporter cooperates, when it reaches the end of the stroke, that is to say when the rear cartridge which kicks the lips of the magazine, with the device for coupling the compartments for

Feeding the weapon.

  This device ensures, during the rise of the slider or button of the front compartment, the pivoting of the retainer which releases the cartridges from the rear compartment. The cartridge of head of this compartment then comes immediately,

  guided by the lips of the magazine, abut against the movable breech, ready for introduction into the chamber.

  The tilting of the cartridge stopper is controlled by the opening of a hook immobilizing said stopper in the closed position. This hook, integral with the wall of the carcass via an axis of rotation, cooperates with a lug located at the end of the arm of the cartridge retainer and furthermore comprises a cam cooperating with the button of the

forward carrier.

  When the rear cartridge of this compartment leaves the magazine lips, the ascent of the transporter causes the button to be pressed on the cam, causing the hook to pivot. The button continues to exert its pressure on the bar of the retainer causing it to tilt backwards. Compartment cartridges

rear wind then released.

  When removing the magazine, the thrust of the retainer return spring is sufficient to ensure the re-engagement of the lug

  locked by the head of the hook causing the locking of the retainer again in the closed position.

  During the rear movement of the bolt, the anti-recur function of the ammunition of the front compartment is automatically ensured by the central partition separating the two compartments. Indeed, when the magazine is engaged, the head ammunition is driven in a few millimeters by the breech. Its flat face then abuts against the

  central partition if the friction caused by the rear movement of the cylinder head tends to make it move back.

  This function is simultaneously ensured by the catch stopper and the top of the rear bulkhead of the loader.

  for rear compartment ammunition.

  No1: a: When the front compartment is defective, the upper position of the carrier, determined by a stop secured to the wall of the magazine, slightly exceeds the top of the central wall so as to keep the rear cartridge pressed against the lips of the magazine, constitute a perfect feed ramp for the cartridges in the rear compartment. These are then guided in the tunnel formed by the lips of the loader and the transporter, which they lower slightly during their passage, for immediate introduction into the room.

  under the thrust of the cylinder head piston.

  FUEL CELLS (Boards 2/7, fig. 2) The reception of a modern firing line (infrared, optronics ...) leads to problems of electrical consumption that fuel cells can solve. For this purpose, the chassis comprises a housing (70) for receiving a fuel cell and its fuel cartridge located in the handle / butt (4) behind the housing of

chargers (22 & 23).

  This arrangement makes it possible to easily increase the volume reserved by a simple extension of the rear part of the handle / grip (4), busc (5) and was (1) of the chassis without causing significant modification of the weapon other than its length. ADVANTAGES OF ELECTRONICS IN THE WEAPON (Boards 25 & 26/26) The introduction of electrical energy and microprocessors leads to a simplification of the mechanisms, thus a gain in weight, and to the integration of new functions in particular important: - detection of cartridge presence in the barrel, - selection of shot by blow or burst directly from the trigger, - selection of the number of ammunitions fired by burst, - counter of shots restarts, counter of shot by accredited shooter, - counter total number of shots fired (cannon wear), - clock: date and time of shots, - recording: the central calculation unit has a memory capacity allowing to restore all the elements of a shot (person, date & time, number of cutting ...), - shooting safety by automatic recognition of the fingerprint of the accredited shooter (or shooters), - programming (enrollment) of personnel authorized to use the weapon, - automatic detection of the type (short, long. ..) of magazine engaged in the weapon,

  - battery charge display indicator.

* SHOOTING SELECTION

  The detent tail constitutes a real waterproof rotator with three positions, the axis of which coincides with that of the

  relaxation. The selection of the hit / hit or burst shot is then made by progressive enforcement of the trigger tail.

  The prograrnmation of the rate of fire as much as the number of ammunition fired per burst race is done on simple

  connection of the weapon to a computer (access by code and authentication).

VISUALIZATION OF FUNCI IONS

  The weapon, in addition to its ability to adjust the parameters in the fire control, includes a screen (68) for displaying the following information: presence of a munition in the chamber, - number of remaining munitions, - fire authorization, - selection: hit / hit or burst, - date & time, number of ammunition remaining, - name (or code) of the accredited shooters,

- battery charge.

  In order to have essential information (shooting authorization, number of cartridges remaining, selection of shooting) the screen will be advantageously located (fig. 1, N 68) at the rear of the barrel, in the axis of the line of sight so

  to be permanently visible to the shooter.

  An enforcement micro-button will scroll through the various functions on the screen.

  The presence of this screen is important, especially in the event of a breakdown in the firing line that could lead

the user has to part with it.

SHOOTING RECORDING

  The electronic circuit of the weapon includes a clock and a memory whose information can be viewed on

  interrogation of said memory via a port, located on the back of the central handle.

  The counting of this memory makes it possible to restore all the elements of use of the weapon: - date and time of the shots, - selection (shot / shot or burst), - identity of the shooter, - number of ammunition fired, - date & time of personnel accreditations, - total ammunition fired over a period (eg year),

  - statistics (barrel aging, weapon).

Counter function.

  Knowledge of the number of shots restarted in a weapon is always crucial and crucial information for the shooter.

  The absence of a counting system still forces the user today to make a different calculation between shots

  consume and the initial capacity of the weapon to know the number of ammunition remaining.

  In order to facilitate the determination of the number of munitions remaining, the weapon includes a device for counting the ammunition present by recording the presence of an ammunition in the chamber and recognition of the position

  front and rear carriers.

  The use of an incomplete loader can only have justification as part of a training, it suffices therefore to know, for operational use, the high or low position of the carriers of each compartment to deduce the number shots restarts before a tin For this purpose, the magazine well is provided with contactors located in the carcass at the top and in teas of the sliding groove of each button of the conveyor. The position information of each button thus collected is transmitted to the central microprocessor which assigns a value, contained in its memory and replete with detection.

  a possible presence of cartridge in the barrel, of overall capacity of the weapon with the magazine.

  The distinction between the various models of magazines (short, long ...) follows the same principle: a contactor located in the well of the weapon allows the central processing unit, if it is activated, to recognize the type of shipper engaged and to display the information of effective capacity according to the position of the carriers and the information of

  presence of a cartridge in the barrel.

  Each time the computer unit (microprocessor) decreases an ammunition, the total calculates and brings the result to the screen. This method, inexpensive in terms of production, does not however allow to know the capacity

  snapshot of a partially stocked magazine engaged in the weapon.

  To this end, the magazine well may include a sensor array detecting the passage of a marker (magnetic, electroluminescent, etc.) located on the transporter of each compartment. The spacing between each

  sensor corresponds to the movement of the transporter when removing a cartridge from the corresponding compartment.

  The referencing of the position of each sensor will allow the central unit to determine the capacity of each compartment and to add to it the possible presence of a cartridge in the barrel to deduce the

capacity of the weapon.

  Note: the number of shots fired is determined using the number of discharges actually counted on the firing touch (there is no electric arc in the absence of a cartridge) or inductive current in the case

an induction ignition.

  MORPHOLOGICAL IDENTIFICATION DN PULLER

  In order to authorize shooting only by the effective holder of a weapon or any accredited person, a device

  of fingerprint identification is incorporated in the central calculation block located in the central handle.

  This device is coupled to a substrate ensuring the detection or analysis of the characteristic points of the imprint,

  applied to the front face of the trigger tail.

  The system is only active when the counter-trigger security is deactivated, as described in patents 0108250, 0204555 and 0204731. The identification module is then powered up and its role and authorizes firing after

  positive identification of the shooter's fingerprint.

Enrollment procedure.

  In order to ensure permanent control and monitoring of users (individuals, administrations, armed forces, special forces, etc.), a procedure for enrolling or storing fingerprints is established according to a

  principle of accreditation at two levels.

  To this end, the memory capacity of the identification block is divided into two compartments, one of which is reserved for

  the registration of the fingerprints of the authorized personnel and the other to that of the authorized personnel.

First level.

  This level corresponds to that of the authorizations of individuals by the only competent authorities to certify the use of a weapon. This operation is made impossible for any user who has not been

designates as such.

  For this purpose, the corresponding compartment of the memory of the identification block is only accessible by a port for connection to the weapon and the storage of the desired fingerprints is carried out after unlocking the access to

  said memory via special software (PC).

  This software unlocks, via a code, access to the memory compartment for a period of time (a few

  minutes) sufficient to allow user registration.

  Enabling procedure: - remove the charger (s) and check that no ammunition is present in the room (s), - connect the cable connecting the computer to the port on the back of the central handle, initialize the unlocking software and enter the authority identification code then the name and code

  identification of the person to be empowered.

  - wait for the confirmation beep to unlock the weapon, - make sure that the counter-trigger is unlocked, - affix the finger of the person to be authorized on the trigger, - wait for the end of enrollment signal (beep) , - disconnect the wire from the cylinder head port,

  - the weapon is usable by the new skill only.

  Note: this procedure, which can take place in the administration premises (police station ...) is particularly suitable for the dissemination of the weapon via conventional distribution networks (gunsmiths ...), or the code

  the personnel of the future holder of the weapon are directly addressed to him and previously addressed by the administration.

  Only the authorized person (to the exclusion of all others) can then use the weapon. A period of validity can be entered in order to oblige the user to periodically return to the services of the authority to unlock

his weapon.

Second level.

  This level allows the transfer of authorization from a quoted "enabling" authority to a user using a simplified procedure, requiring no wiring of the weapon to a computer in order to be usable quickly in

  operations. No power to transfer accreditation is then attributed to the new authority.

  Rapid clearance procedure: - remove the magazine (s) and check that no ammunition is present in the chamber (s), unlock the counter-detent, - initialize a sequence by carrying out a predefined number (for example five) of complete and successive presses on the trigger, - affix the finger of the enabling person on the trigger, - wait for the enrollment authorization signal (beep), - within thirty seconds (authorization to enrollment stops after this time), put the finger of the new user for five seconds on the trigger, - the emission of a new beep confirms the lenrolement (only one possible) of the new user and the opening of a new sequence of REGULATION, - The absence of a fingerprint on the trigger at the end during an enrollment sequence closes it automatically.

  The weapon can only be used by the authorizing person and those he has authorized.

  Note: this secondary clearance procedure is discretionary. Only the administrations concerned will have this possibility of rapid authorization, the implementation of which is carried out via a specific code issued

by the manufacturer.

  RESISTANCE TO ELECTROMAGNETTQUES AND INDUCUON COUNTS

  The weapon according to the invention must be capable of flawless operation regardless of the conditions

  environmental (severe thunderstorms, high power radar radiation, nuclear electromagnetic flashes ...).

  For this purpose, the necessary shields of vital elements (central computing unit, block memories

  identification, primers ...) will be adopted in order to guarantee perfect insensitivity to these phenomena.

  ADVANTAGES OF THE CHiSSIS FOLLOWING THE INVENTION The twin-barrel design of the chassis according to the invention has many advantages compared to the solutions

  current, in particular in terms of precision and firepower. These advantages are listed as follows.

Precision.

  The wind cannons are mounted in their cradle, the side by side arrangement guarantees their greatest length

  offering a real sniping capacity.

  Security. Safety of relaxation, this behind being composed of a "counter-relaxation" particularly innovative since it

  allows a quick implementation of the same hand holding the weapon, and this in a totally amoidextrous way.

  Ammunition: easy, simplified and economical storage: limited to ready-to-use ammunition. The removal of

  procedures for collecting, processing and repackaging used cases is synonymous with substantial economic efficiency.

  Locking of the weapon by introduction of a removable lock ensuring the blocking of the trigger and the disassembly lock. Detention control: systematic qualification of shooters using the weapon according to the invention

  response to problems of unauthorized employment or diversion.

  Operational use Advantages of the tandem loader: the tandem arrangement of compartments and battery trots of ammunition

  allows to carry up to three times the capacity of current magazines, or more than a hundred cartridges.

  This device concentrates the gunfire of a machine gun in an assault rifle, opening the flight to a new

  compact and light weapons market with extraordinary firepower.

  Discretion unequaled by absence of traces (cases) from the tin Reinforced efficiency of ammunition according to the invention which benefit from a reduction in weight and size

  up to 50% of conventional ammunition and this has equal performance.

  Increase in firepower: for the same weight of ammunition, the effective (or projectable) mass is equal

  to that carried is 50% more than with ammunition in case.

  Elimination of the risk of jamming when ejecting the cases.

  Elimination of the risk of burns which may result, upon ejection, from the contact of a case with the skin. The use of two calibers opens the flight to intelligent ammunition with programmed detonation. Firepower

  conferred on the infantryman is then without comparison with that of the weapons using ammunition with holster.

  * * * The following chassis [the invention constitutes a basis for the development of a new generation of weapons combining the

  Advantages of the assault rifle, sniper rifle, machine gun and gear lance.

  This new breed of arms opens a new deal in the field of firearm performance and should

  meet the expectations of many Police Forces, Staffs and Special Forces.

Claims (13)

  1 - Chassis for individual two-barrel year characterized in that it consists of: 1 0 - a central barrel (1) comprising trotting handles (2,3 & 4) located under the said barrel and arranged such as: o the handle front (3) retractable bipod (35) and operating pump, o the central handle (2) forms the barrel distribution control and firing line, o the rear handle (4) forms magazine housing (22 & 23) and ergonomic stock, - a cocking pump actuation device common to the two cylinder heads, - a device for guiding the handle / pumpelbipod assembly, - a clamping device side by side with the half handles making up the front handle, - a device for controlling the angular displacement of the bipod, - a device for deploying the retraction of the lever (51) for secondary arming, - a device (16) for selecting / distributing the cylinder heads, - a maneuvering device / selective engagement of the cylinder heads, - a locking / unlocking device (33) di fferential of the cylinder heads, - a device (62) for separating the cutasse / cocking rod during firing, - an ergonomic device (64) for controlling the function,   - a telescopic bayonet / mask device (13).   2 - Chassis for individual bi-barrel weapon according to claim 1 characterized in that the front handle forming   retractable bipod (35) is made up of the following assemblies.   The integrated bipod assembly comprising: - (42) a pivotlsupport block of the two half-handles / pump, - (3 bis) two half-handles side by side, - (43) a sleeve / support of each half-handle, - (51) a retractable cocking lever, - (52) a widening of the cocking lever section, (46) a lateral movement axis by half handle / pump, - (47) springs (spiral) or profile in extension in the deployed position of the half handles / pump, - (49) a lug for holding in the retracted position by half handle, - (3 5) two telescopic bipod extension elements per handle, - (3 6) a stopper for telescopic bipod elements by handle, - (3 7) a stopper for adjusting the length of telescopic bipod elements by handle, - (38) an erasable lug for locking in the deployed position of telescopic elements bipod foot,   - (48) a distance stop for each half-handle.   The support / guide assembly of the preceding bipod assembly comprising: - (39) a support / guide block of the handles / bipod assembly, - (34) a trigger secured to the block (39) support / guide of the assembly handles / pump, - (40) an erasable stop of neutral position of rotation of the support block / guide of the assembly handle pump 1 0 - (41) a coupling pin of the support block / guide (39) of the assembly pump handle with the support / guide block (50) of the cocking rod and simultaneous retraction of the cocking lever (51), - (44) a stop for locking the pivot / support block (42) in its housing of the support block / guide (39), 1 5 - (45) an erasable stop of neutral position of rotation of the pivot / support block (42) of the half, polgneespompe.   3 - Chassis for individual dual-barrel weapon according to claims 1 & 2 characterized in that the device   cocking of the cocking pump common to the two cylinder heads comprises: - (50) a support / guide block for the rod (27) and the cocking lever (51), (51) a retractable cocking lever, - (53 ) a cocking lever arm, - (54) a return spring in the deployed position of the cocking lever, - (27) a cocking cocking rod, - (55) a flexible connection (ball joint, pin for deflection in site and azimuth) rod with the block support / guide (50).   4 - Chassis for individual bi-barrel weapon according to claims 1, 2 & 3 characterized in that the device   guide of the pump / bipod handle assembly comprises: - (56) a rod for guiding the support / guide blocks (39) of the handle / pump and support / guide assembly (50) of the rod and of the cocking lever (51 ), - (57) a return spring for the support / guide block (50), - (58) a travel stop for the support / guide block (50) for the rod and the rearmament lever (51) (59) a circulation groove of an effa (40) stop, block rotation neutral cable   support / guide (39) of the handle / pump assembly.   - Chassis for an individual two-barrel weapon according to claims 1, 2, 3 & 4 characterized in that the rod (56) of   guide of the support / guide blocks (39) and (50) adopts an oval section (so the long axis is vertical) along the length correspond to the stroke of the support / guide block (50) of the rod (27) and the lever ( 51) secondary armament, puts, over the rest of the length, a round section of diameter equal to that of the major axis of the oval of the previous section. This arrangement provides a stop effect (58) for the support / guide block (50), the section of the hole in which the rod (56) slides is of the same oval as that of the rod, preventing any displacement beyond the planned race. On the other hand, the hole in the support / guide block (39) of the handle / pump assembly is round so as to ensure sliding of the handle / pump assembly over the entire length of the rod (56).   6 - Chassis for individual bi-barrel weapon according to claim 1 & 2 characterized in that the device for holding the half-grips tight side by side is composed of lugs (49) of approximation arranged in such a way that the lever armament, in horizontal retracted position, exerts on them a vertical pressure of teas up.   7 - Chassis for an individual dual-barrel weapon according to claims 1, 2, 3 & 4 characterized in that the lever (51)   retractable armament has an enlargement (52) of its section so, during a movement before ['pump handle / bipod assembly (39), to cause [' automatic extension of the bipods by opening the retainers (36) of telescopic elements of each half-handle which press against said widening (52) of   section causing their unlocking.   8 -. Chassis for an individual two-barrel weapon according to claims 1 & 2, characterized in that the device for   control of the angular bipod deflection is composed of spacing stops (48) and a conical window (60) of deflection arranged on the lower face of the front of the central assembly such as during an advance of the assembly handle / pump ['engagement of the opening of the cone (61) of the window (60) by the half-handles causes their opening until they leave the support on said cone (61) to rest on the spacing stops (48).   9 - Chassis for individual dual-barrel weapon according to claims 1, 2, 3 & 4 characterized in that the device   deployment / retraction of the lever (51) for secondary arming consists of the pin (41), coupling of the supporguide block (39) of the handle / pump assembly with the support / guide block (SO), and a busc (53) fitting on the cocking lever, said pin cooperating with the busc in order to ensure deployment, assisted by the return spring (54), or retraction of the lever (51) depending on whether the two blocks (39 & SO) separate or approach each other.   - Chassis for an individual dual-barrel weapon according to claims 1 & 3 characterized in that the   selection / distribution of cylinder heads / barrels is composed of a selector (16) with two or three positions (left -   neutral - right) located on the central pistol grip (2) and under the trigger guard so as to be permanently accessible by the middle finger (finger) as well as a rod (26) integral with said selector, comprising at its end a mechanism ( fork, engagement pin) of cooperation with the rod (27) for rearmamenting the cylinder heads so as to ensure the displacement of said rod towards the appropriate cylinder head for its engagement simultaneously with the tilting, to the right or to the left, of the precise selector . This selector also ensures the triggering of telemetric fire (laser ...) when a pressure is exerted towards the rear of the weapon as well as the simultaneous presentation of the parameters corresponding to the caliber chosen in the sight of the tin pipe.   11 - Chassis for an individual dual-barrel weapon according to claims 1 & 3 characterized in that the device   of selective engagement of the cylinder heads (14 & 15) is ensured by the fitting on their inner side face of a reception housing (29 & 30), factory in the mass in enforcement, in the form of a symmetrical female imprint of the end of the arming rod (27) comprising a hook (31) and with which they cooperate. The female hook of the cylinder heads is intended to be engaged laterally by that, symmetrical, of the aforementioned rod and the reception housing is so designed that it allows a vertical movement of said rod   suitable for promoting disengagement during a lifting operation.   12 - Chassis for an individual dual-barrel weapon according to claim 1, 3, 10 & I 1 characterized in that the differential bolt locking device of the cylinder heads (or cylinder head locking not selected) is composed of housings (33 bis) receiving or slots fitted on each breech and a crescent-shaped rocker or V mounted opposite the slots between the two breeches and articulated on an axis parallel to the central axis of the weapon, such that the rear link rod (27) passes inside the V in order to drive, during the lateral displacement of the aforementioned rod, a pivoting of the rocker, one branch of which engages the reception slot of the barrel of the barrel selected causing it to lock and release   simultaneously that of the selected bolt causing its release.   13 - Chassis for an individual dual-barrel weapon according to claims 1, 3 & 11 characterized in that the device for   disassembly of the cocking rod during firing is composed of a cam (62) integral with the detent and mounted in direct contact with the trragle or by means of a vertical plug driven by said cam, such as pressing on the trigger tail raises said arming rod (27) and causes its separation   with the cylinder head concerned (14 or 15) and try to keep the trigger pressed.   14 - Chassis for a dual-barrel individual weapon according to claim 1 characterized in that the rear ergonomic handle (4) is arranged in such a way that it forms a cheekpiece (S) at its junction with the barrel (1) of the chassis way to: o ensure a perfect and always identical setting of the weapon on the shooter's shoulder for the   better precision, especially in reflex shooting.   o provide a shortening of the weapon by recur of the whole   cannons (s) / chamber (s) above the shooter's shoulder.   c place the medium axis of the guns above the shooter's shoulder in order to systematically present the line of sight in front of the shooter's eye, reduce the inclination of his head and favor reflex shooting.   o favor a particularly solid grip with two hands using the cerral handle for the use of the bayonet and increase, in this configuration, the extension of the weapon - Chassis for individual two-weapon weapon according to claim 1 characteristic in that the ergonomic function control function consists of a selector (64) (rectangular or of suitable shape, for example a crescent, to accommodate the shooter's thumb) placed on the central handle and substantially vertically or   parallel to its axis, at the same height as the trigger tail in order to be operated by the shooter's thumb.   A pressure of the thumb forwards causes the pivoting or the displacement of this lever with concomitant action of the line of shooting. This lever is repeated on each side of the weapon so as to offer a perfect ambidexterity of use of the frame. This control arrangement can advantageously be applied to the modification at will of the shooting distance (incrementation / decrementation by steps of one to two meters for example) or mounted on all weapons (automatic pistols ...) comprising a magazine in the handle in order to trigger the opening of the retainer to said loader to cause the latter to be ejected with a simple   thumb pressure forward without having to take off the hand of the weapon.   16 - Chassis for a dual-barrel individual weapon according to claim 1, characterized in that the telescopic bayonet / flame arrester device (13) is composed of an open tube, taped at one end, mounted sliding around a barrel ( preferably that of lesser caliber), and comprising a spring retainer (65) which cooperates with two stop notches located on said barrel, one close to the cradle (6) and the other at the end respectively correspond to the positions retracted and deployed, said tube also comprises orifices (round, oval, rectangular, etc.) (66), possibly harmonized with the pitch of the barrel scratches,   fittings in such a way that when the bayonet is deployed they give it the role of dam-dams.