WO2003102488A1 - Chassis bi-canons pour arme individuelle - Google Patents
Chassis bi-canons pour arme individuelle Download PDFInfo
- Publication number
- WO2003102488A1 WO2003102488A1 PCT/FR2003/001662 FR0301662W WO03102488A1 WO 2003102488 A1 WO2003102488 A1 WO 2003102488A1 FR 0301662 W FR0301662 W FR 0301662W WO 03102488 A1 WO03102488 A1 WO 03102488A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- handle
- barrel
- rod
- support
- chassis
- Prior art date
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Classifications
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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
- F41A9/00—Feeding or loading of ammunition; Magazines; Guiding means for the extracting of cartridges
- F41A9/61—Magazines
- F41A9/64—Magazines for unbelted ammunition
- F41A9/65—Box magazines having a cartridge follower
- F41A9/69—Box magazines having a cartridge follower characterised by multiple-row or zigzag arrangement of cartridges
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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
- F41A17/00—Safety arrangements, e.g. safeties
- F41A17/06—Electric or electromechanical safeties
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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
- F41A23/00—Gun mountings, e.g. on vehicles; Disposition of guns on vehicles
- F41A23/02—Mountings without wheels
- F41A23/08—Bipods
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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
- F41A3/00—Breech mechanisms, e.g. locks
- F41A3/60—Breech mechanisms for guns having two or more barrels
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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
- F41A3/00—Breech mechanisms, e.g. locks
- F41A3/62—Breech mechanisms, e.g. locks using combustion gas pressure for adding to the mechanical locking action, or for delaying breech opening movement
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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
- F41A9/00—Feeding or loading of ammunition; Magazines; Guiding means for the extracting of cartridges
- F41A9/35—Feeding multibarrel guns
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41C—SMALLARMS, e.g. PISTOLS, RIFLES; ACCESSORIES THEREFOR
- F41C27/00—Accessories; Details or attachments not otherwise provided for
- F41C27/06—Adaptations of smallarms for firing grenades, e.g. rifle grenades, or for firing riot-control ammunition; Barrel attachments therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41C—SMALLARMS, e.g. PISTOLS, RIFLES; ACCESSORIES THEREFOR
- F41C7/00—Shoulder-fired smallarms, e.g. rifles, carbines, shotguns
Definitions
- the present invention relates to an individual weapon ergonomic chassis organized according to three handles aligned under a main barrel comprising one or more barrels of different calibers and a telescopic bayonet, the handles advantageously ensuring the housing / magazine stock functions, combined lever armament and integrated adjustable bipod for the most advantageous mass estimate.
- This chassis makes extensive use of command and order transmission means (firing, detection of the presence of chambered cartridge, magazine, number of remaining ammunition, etc.) whose integration makes it possible to remove up to 40 % of traditional percussion mechanisms, linkage links and other mechanical couplings with the corresponding weight savings and space.
- 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 as a response to market expectations.
- the present chassis advantageously replaces the conventional cocking levers and ejection / reloading mechanisms via a single pump dispensing handle reducing the size and weight of the weapon.
- the elimination of the number of parts traditionally put at stake 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 placed in the front pump handle.
- the chassis is so arranged that it also allows the incorporation of a telescopic bayonet / flame arrester further reducing the size, eliminating mounting problems and guaranteeing the infantryman immediate availability and rapid implementation of this accessory.
- the chassis finally includes the devices exposed in patents 0108250 and 0204731 such as microprocessor management, counter-trigger safety, firing of ammunition without cases, morphological identification of the shooter, sequencing of the magazine compartments and a port for connection to a computer.
- devices exposed in patents 0108250 and 0204731 such as microprocessor management, counter-trigger safety, firing of ammunition without cases, morphological identification of the shooter, sequencing of the magazine compartments and a port for connection to a computer.
- Medium caliber ammunition of the intelligent type (grenade) is preferably 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 taking stripes and the resistance of the extraction force during the ejection of a munition without firing.
- a gas shock absorber system particularly suitable for firing ammunition without a case with a high specific impulse, is exposed in this patent in order to counter the effects of the recoil of a heavy ammunition.
- this shock absorber presented in two formulas, contributes by the simplicity of its design as much as the automaticity of its use, to the general reduction of the chassis.
- the chassis thus defined comprises: a central fiât, three handles aligned under the central Kit, - two barrel assemblies, a single barrel selection command, a single breech cocking command, a retractable bipod, a secondary cocking lever retractable, - two side-by-side chargers integrated into a handle, a telescopic bayonet / flame arrester, - a central computer, a firing line fairing (optronics, infrared ...) a device to absorb the recoil of ammunition with a high specific impulse.
- ETATAM ⁇ _aaEURDELATECHMQUE Patent EP 0898 142 A 2 from Sommer + Qckenfùss GmbH describes a repeating weapon whose pistol grip also acts as a pump for the chambering of ammunition.
- This formula in addition to its incompatibility of multi-barrel use since the pistol grip is directly linked to the breech, is characterized by a mass estimate penalizing by the conservation of a conventional percussion technology of the ammunition and proves moreover incomplete as evidenced by the absence of a bipod for landing fire.
- Patent EP 0085 193 Al 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 which complicates the use of the weapon by weighing it down without offering the flexibility of automatic reloading.
- Patent EP 0759531 Aide Heckler & Koch GmbH proposes an automatic firearm comprising two barrels assembled back to back axially and whose interchangeability is based on a maneuver of reversal of 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, requiring unsuitable handling (reversal of the barrel assembly) in the case of 'a real commitment, therefore implies the prior choice of the size by the user.
- No bipod incorporating device is provided any more than a pump operation of the handguard.
- Patent WO 93/13379 from Co ⁇ t Manufacturing Company, Inc. describes a grenade launcher adapter whose particularity is to use the formula of the M 203 mounted so that the recoil produced passes through the same axis as that of the barrel. This system is limited since it offers no possibility of automatic recharging.
- US Patent No. 6,250,194 to Heckler & Koch GmbH describes a coupling system between an assault rifle / submachine gun previously shortened and an automatic grenade launcher.
- the assembly of the assembly leads to an imposing weapon, cumbersome 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 penalizing duplication in terms of parts and weight.
- No pump operating mechanism is provided and all two weapons are held in the firing position by supination of the hand affixed to the front handguard, imposing a twisting effort on the wrist generating muscle fatigue unsuitable for control in raising the weapon.
- Patent EP 0416642 A 2 describes a small caliber weapon comprising two barrels with dedicated magazine, located one above the other.
- a mechanical firing control device is common to the two guns.
- the weapon naturally comprises two arming levers and its formula can be justified, in the present case of two barrels of the same caliber, only to prevent a possible containment of one of them and to participate in a significant increase in the autonomy of fire.
- the formula offers many disadvantages. As part of these, the increase in mass (two barrels, two percussive masses, etc.) and in the number of parts making up the weapon, without prejudice to the size of the weapon due to the length differential introduced by the formula of superimposed cannons.
- Patent FR 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, poses many questions in terms of ergonomics that the inventor does not address: muscle fatigue imposed by the suspension of the weapon, accuracy of a shot in total absence of setting of the weapon, control in yaw (depointing), impossibility of change of magazines without releasing the weapon ...
- the superposition of calibers poses the thorny problem of the differential length of the barrels, constraining to the shortening of the one for the benefit of the other.
- the inventors preferred a 90 ° arrangement of magazines to reduce this drawback at the expense of the overall size of the weapon.
- the inventors have developed a special system for holding the ammunition by rotating the barrel, which includes a window whose opening, caused when it is opposite the power supply 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 is not sufficient to convince the skilled person 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 magazine compartments are arranged side by side and the ammunition will necessarily telescope during their presentation resulting in a blockage.
- the weapon comprises a friction shock absorber, furthermore subject to patent FR 92 13428, for firing ammunition of high caliber and of great impulse
- This shock absorber has the drawback of requiring a relatively long stroke penalizing the size of the weapon and to be particularly sensitive to fatty or fluid external agents liable to rapidly degrade performance.
- the ergonomics of the Lacroix formula limits the use of the weapon, its feeding system devoid of extraction mechanism can easily cause a containment, its shock absorber is penalizing in terms of congestion and its risky formula look at the presence of common fatty substances on a weapon.
- No bipod is also integrated and the arrangement of 90 ° chargers significantly increases the size of the friend.
- the invention consists of an individual weapon chassis intended for the semi-automatic and automatic firing of two guns 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 munitions.
- 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, resulting in the amputation of at least as much of the length of the barrel concerned.
- This chassis provides a particularly ergonomic grip of the weapon thanks to its original design based on the use of a tapered central barrel, preferably with a section but not exclusively hexagonal, under which three handles are positioned: one in the central position and one at each end.
- the organization and presence of these handles are intended to perform several roles or functions described below.
- the front handle: o performs a triple role: ergonomic, of common cocking lever for the two guns and of integrated bipod. o reduces the number of parts and the size of the weapon by integrating a telescopic bipod with automatic deployment. o provides a primary advantage in terms of responsiveness to the benefit of the user by allowing him to deploy the bipod in a fraction of a second. o against raising the weapon when firing. o transfers pressure along the central axis of the weapon towards the shoulder to ensure comfortable support of the weapon and reduce user fatigue by countering the effects of recoil, in particular during bursts of fire.
- the central handle o ensures a quick selection of the barrel thanks to an ergonomic selector placed under the trigger guard. o ensures an incrementation of the telemetric shooting distance thanks to an ergonomic selector (64) moved by the shooter's thumb, o includes the housing for the electronic management of the weapon and the batteries.
- the rear handle: o ensures perfect and always identical setting of the weapon on the shooter's shoulder for the best precision, especially in reflex shooting. o provides a shortening of the weapon by a recoil of the barrel (s) / chamber (s) assembly above the shooter's shoulder. o ensures the placement of the average axis of the cannons above the shooter's shoulder in order to systematically present the line of sight in front of the shooter's eye, reduce the tilt of his head and promote reflex shooting. o combines the housing of two chargers arranged side by side with a stock function.
- the rear and central handles allow a particularly solid two-handed grip for the use of the bayonet. o increase, in this configuration, the extension of the weapon.
- the front, central and rear handles: o provide an exceptional ergonomic grip of the weapon in order to promote a position conducive to shooting accuracy and better recoil damping, especially in lifting.
- the “bull-pup” type design of the chassis is here improved by an accentuated recoil of the barrels, the fairing (1) of which exceeds the rear of the crimper stick / container (4) forming an ergonomic nozzle (5) thus guaranteeing a taking a strictly identical position on each shot, in particular reflex shots where the playful bet is often erratic.
- an offset of 10 to 20 m / m of the placement in height of the stick on the shoulder is easily observable on the weapons provided with a conventional stick, involving a modification of the inclination of the head of the shooter and of the alignment of 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 eye level limiting the inclination of the head so that the shooter perceives without delay the line of sight
- the arrangement of the components is also particularly suitable for controlling the lifting of the weapon. Indeed, the presence of a pump handle at the front easily allows the shooter to produce a retaining force of the “pinch” type, which naturally counteracts 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 telemetry.
- the electronics of the weapon automatically ensures the presentation in the collimator of the reticles and firing parameters adapted to the selected ammunition.
- a telescopic bayonet (13) which surrounds the small caliber barrel over part of its length, simultaneously performs the role of flame arrester in the deployed position. Description of plates 1 to 8/8
- Plate 1/8 has 1 figures (1) describing a sectional view of the chassis at the level of the lower caliber barrel.
- Plate 2/8 has 1 figure (2) describing a sectional view of the chassis at the level of the large caliber barrel.
- Plate 3/8 has 4 figures (3, 4, 5 & 6) showing the parallel arrangement of the magazines with the selection / blocking mechanisms of the cylinder heads.
- Plate 4/8 has 1 figure (7) showing the mechanism of the handle / pump / bipod assembly.
- Plate 5/8 has 1 figure (8) showing a sectional view of the deployed bipod weapon.
- Plate 6/8 has 5 figures: fig. 9 showing the sectional view 00 ′ of the constituent elements of the handle / pump / bipod, FIG. 10 showing the sectional view of the support / guide block of the cocking lever rod in the retracted position, FIG. 11 showing the cocking lever in the deployed position and FIG. 13 presenting the view from below of the front of the chassis with deployment / retraction cone of the half handles / pumps.
- Plate 7/8 has 3 figures (14, 15 & 16) showing the telescopic bayonet mechanism and the ergonomic telemetry increment selector.
- Plate 8/8 has 3 figures (17, 18 & 19) showing the mechanism of the shock absorber assembly for ammunition with a high specific impulse with its regulating valve.
- the chassis (1) chosen as a demonstration is preferably but not exclusively an assault rifle, the principle of the invention can be extended to all calibers and types of small arms.
- the chassis consists of a carcass, body or barrel (1) central comprising a cradle (6) on which are mounted the barrels (8 & 9) and therefore comprises a limited number of parts. This characteristic should have significant economic repercussions in terms of production cost, shooting accuracy and maintenance.
- the weapon includes (plates 1 to 8/8): - (1) carcass or central barrel,
- firing parameters display screen - (68) firing parameters display screen, - (69) firing line fairing,
- 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 handle (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, etc.) for cooperation with the rod (27) for adjusting the cylinder heads so as to ensure the displacement of said rod towards the suitable cylinder head (14 or 15) for its engagement simultaneously with the tilting of the aforementioned selector.
- This selector also ensures the triggering of telemetry shooting (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 viewfinder of the firing line .
- cylinder heads (14 & 15) of each barrel by the cocking rod (27) are characterized in that they comprise on their internal lateral face a reception housing ( 29 & 30), machined into the body in driving in, in the form of a symmetrical female impression of 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 thrust on the breech when the handle / pump (3) recedes, as well as a inclined face intended for the engagement of the female housing hook of the cylinder heads during a return towards the front of the latter.
- the female hook of the cylinder head housings (29 & 30) is intended to be engaged laterally by that (31) of the aforementioned rod and said reception housings are so designed that they allow a vertical movement of said rod capable of promoting the disengagement of its hook (31) from the female hook of the cylinder head housings during a lifting.
- 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 selected cylinder head so as to ensure, during a retraction of the handle / pump 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 recoil of the cylinder heads during a maneuver of the handle / pump with the weapon being turned over, ensuring, in normal operation, the 'engagement of the hook (31) of the rod by the cylinder heads during a return to the front under the action of their recovery spring. Sufficient play ensures lateral engagement without friction of the cylinder head housings by the rod.
- Rod / cylinder head coupling device (plate 1/8 & 3 / S, fig. 1, 3, 4, 5 & 6)
- a rod / breech uncoupling device is provided at the trigger.
- This device ensures, during a pressure exerted on the trigger tail, a lifting of the cocking rod (27) by a cam (62) integral with the trigger and mounted in direct contact with the rod or through a vertical plug moved by said cam. Pressing the trigger rod 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) as long as the trigger remains pressed. There is therefore no risk of catching the breech during a sustained fire (burst).
- This device is composed of housings (33 bis) for reception or slots arranged on each cylinder head and of a rocker (33) in the shape of a crescent or V characterized in that it is mounted opposite the slots between the two cylinder heads and articulated on an axis parallel to the central axis of the weapon, so that the reset rod (27) passes inside the V in order to cause, during the lateral displacement of the above-mentioned rod, a pivoting of the rocker one branch of which engages the slot (33 bis) for receiving the breech of the unselected barrel causing it to lock and simultaneously releases that of the selected breech causing its release.
- a spring (63) acting in compression on the top of the V or crescent will ensure a clean and precise tilting.
- the handle / pump / bipod assembly is made up of the following elements. 1.
- the integrated bipod assembly composed of:
- spring (s) (spiral or U-shaped) for extension in the deployed position of the half handles / pump
- a device for guiding the handle / pump / bipod assembly - (56) guide rod for the support / guide blocks (39) of the handle / pump and support / guide assembly
- the operation of the handle / pump / bipod assembly is carried out by pressing the trigger (34) and then performing a backward movement to chamber a cartridge or forwardly to implement the integrated bipod.
- the cocking rod After selection of the appropriate barrel and engagement of the corresponding housing of the breech, drives said breech backwards for an extraction of ammunition.
- the cylinder head and the rod are secured by means of the hook (31) in order to prevent any risk of inadvertent opening of the selected cylinder head under the effect of an inertial shock.
- the rocker (33) immobilizes the other cylinder head.
- the bipod is implemented by squeezing the trigger (34) for locking the handle / pump assembly and then pushing the handle forward, taking care to open the hand in order to promote immediate separation of the half-handles.
- This action has the effect of separating the block (39) support / guide from the handle / pump assembly of the guide support block (50) of the rod (27) and of the secondary cocking 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 on the trigger side of the weapon.
- the rod adopts an oval section (the major axis of which is vertical) over the length corresponding to the travel of the support / guide block (50) of the rod (27) and of the secondary cocking lever (51), then, on the rest of the length, a round section of diameter equal to that of the long axis of the oval of the previous section.
- This arrangement provides a stop effect (58) for the support / guide block (50) whose 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 support / guide block (39) of the handle / pump assembly is round so as to allow the handle / pump assembly to slide 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 circulation of an erasable stop (40) neutral position (vertical) of the travel in roll of the support / guide block of the handle / pump assembly.
- the forward movement of the handle / pump assembly results in the deployment of the following elements (plates 4, 5 & 6/8, fig.
- the bipod then has the following advantages: rotation, after clearing of the stop (40), around the guide rod with a clearance limited by the opening of the cone (61) of the window (60) arranged under the barrel of the chassis, particularly appreciable for performing verticality corrections on the line of sight.
- rotation in yaw after erasing the neutral stop (45) of the pivot block / support of the half handles / pump to offer an azimuth scan of the line of sight, the trigger (34) acting as an angular travel stop .
- the mounting of the half-handles in the pivot / support block (42) is carried out 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 take care to position and compress their respective return springs (47) then by pinning each half-handle with an axial pin.
- Another formula for recalling the half-handles in the spread position would consist of using a single inverted U-shaped section spring, the branches of which engage a housing (slot) arranged in each sleeve / support (43) of the half-handle or even the production in a single piece of the block assembly (42) and of the two sleeves / supports (43) of half-handles made of a composite material provided with an elasticity conducive to the separation of said half-handles.
- the telescopic elements (35) of each handle are produced using a technology similar to that of ammunition loaders (folded welded sheet, composite material, extruded tube, etc.).
- a single spring, housed in each half-handle (composite, metal foundry, etc.) is sufficient for the complete deployment of a leg.
- the length adjustment of each foot is obtained by pressing on the retainer (37) in order to engage the appropriate 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 stopper (36) of telescopic bipod elements in the retracted position is preferably secured to the sleeve / support (43) and can advantageously be made of composite in one piece with the latter.
- the present chassis being designed to accommodate a modern firing line (infrared, optronics 7) it includes at the disposal of the shooter a series of controls whose ergonomics participate in the same concern for efficiency and simplification as the handle / bipod pump.
- an ergonomic function control device consists of a selector (64) (rectangular or crescent-shaped to accommodate the shooter's thumb) arranged on each side (ambidexterity) on the central handle and substantially vertically or parallel to its axis, at the same height as the trigger tail so as to be actuated by the shooter's thumb.
- a pressure of the thumb forward causes the pivoting or displacement of this lever with concomitant action of the firing line.
- This lever is repeated on each side of the like in order to offer a perfect ambidextrous use of the chassis.
- This control arrangement can advantageously be applied to the modification of the shooting distance as desired (incrementing / decrementing in steps of one to two meters for example) previously developed by a rangefinder, the triggering of which is effected by pressure on the rocker (16 ) gun selection, or mounted on all weapons (automatic pistols ...) comprising a magazine in the handle in order to trigger the opening of the retainer of said magazine to cause the latter to be ejected with a simple pressure of the thumb towards the front without having to take off the hand of the weapon.
- BAYONET / TELESCOPIC FLAME COVER (plate 7/8, fig. 14 to 16)
- the present chassis comprises a built-in extensible bayonet (13).
- This bayonet is characterized in that it consists of an open tube, tapered 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 at the end corresponding respectively to the retracted and deployed positions.
- Holes (round, oval, rectangular ...) (66) possibly harmonized with the pitch of the barrel stripes are arranged around the circumference of the bayonet in such a way that, when it is deployed, they give it the role of hiding -flammes.
- This provision of the bayonet is particularly advantageous because it leaves the infantryman the benefit of his personal dagger (previously acting as a bayonet) as the last means of defense / survival if he were to lose his weapon.
- the integration of this accessory within the weapon eliminates all the tedious and long assembly / disassembly operations, reduce the dangers of manipulation by offering the possibility of being implemented only when the situation requires it and advantageously combines the function of flame arrester.
- This bayonet can advantageously be adopted identically in the case of a single-barrel weapon.
- the present chassis includes a gas shock absorber system intended to reduce the effect of the recoil of munitions with a high specific impulse, in particular in the case of use of ammunition without a case.
- the cylinder head (15) here forms a sealing piston according to the stipulations of patents No. 0204731 and 0300250 by the same author.
- the stroke of its reciprocating forward / backward movement is provided by a bracket (80) integral with the barrel ammunition chamber assembly which provides it with precise guidance.
- the recoil damping device is made up of: a support / guide bracket (80) for the cylinder head, - a bracket stop (81), a shock absorber piston (71), a reception cylinder (72) of the shock absorber piston (71), a gas borrow channel (73) at the level of the firing cup (82), a channel (73 bis) for conveying the gases towards the shock absorber cylinder (72) , - a distribution / regulation valve (74) comprising: o a drawer (75), o a screw (75 bis) for adjusting the drawer, o two switching channels (76 & 76 bis), o a return spring drawer (77), a recovery spring (78),
- the propellants are borrowed (73) at the level of the firing cup (82) to be conveyed, via a distribution / regulation valve (74) and a channel (73 bis) arranged in the stem (80) guide of the cylinder head (15), to a cylinder (72) mounted in abutment in a housing for receiving the stop (81) pinned on the stem (80).
- the cylinder (72) receives a piston (71) located in the axis of the barrel and on the back of the breech (15) of which it is integral.
- the distribution / regulation valve (74) ensures the delivery of the propellants to the damping cylinder when they increase in pressure and to the discharge channel (79) when they relax.
- the discharge channel (79) runs parallel and along the barrel so as to open at its end in order to prevent any loss of gas inside the weapon.
- the diameter of this channel (79) is less than that of the channel (73 bis) which supplies the shock absorber in order to produce a gas flow differential during their expansion.
- the distribution / regulation valve (fig. 17 & 18, 74) consists of a drawer (75), comprising two channels (76 & 76 bis) for gas routing, mounted sliding in a reception housing (square , oblong ...) preventing any rotation of said drawer on itself.
- the drawer is held in position by means of a return spring (77).
- the valve is connected to the borrow channels (73) of the gases from the firing cup (82), supply (73 bis) of the damper and discharge (79) so that when the drawer is at rest (Fig. 19), the switching channel (76 bis) ensures the communication of the supply channel (73 bis) of the shock absorber with that of the discharge (79) and the simultaneous closing of the borrowing channel (73) gases from the firing bowl (82).
- This arrangement constitutes an airing of the shock absorber in order to allow the recoil of the breech during a maneuver controlled manually by the shooter.
- the gases borrowed from the firing chamber exert a pressure capable of causing the drawer to move (fig. 18), compressing its return spring, such that the switching channel (76) ensures the communication of the borrow channel (73) with that of the supply (73 bis) of the damper at a flow rate equal to the nominal of said borrow channel (73). Simultaneously this movement of the slide causes the discharge channel (79) to close during inflation of the shock absorber.
- the diameter of the damper piston is also such that it represents a fraction (1/2 for example) of that of the sealing piston (82) or of the cylinder head (15).
- the pressure exerted by the latter during the departure of the ammunition causes a depression of said damping piston (71) in its reception cylinder (72) ensuring an initial absorption of the recoil in a proportion in proportion to the surfaces of the damper pistons and cylinder head sealing.
- the ammunition progresses in the barrel causing a pressure drop in the chamber which quickly becomes lower than that prevailing in the damper cylinder (72).
- the regulating drawer (75) then closes and the switch channel (76 bis) ensures the communication of the supply channels (73 bis) of the damper and of discharge (79) at a flow rate in the ratio sections so as to ensure controlled "deflation” of said shock absorber.
- This effect causes a progressive and continuous depression of the recoil damper piston (71).
- the shock absorber cylinder then continues to "deflate” by emptying through the discharge channel (79) continuing its damping effect, combined with that of compression of the recuperator spring (78), until the cylinder head reaches the end. race.
- the recuperator spring then takes over to return the cylinder head forward with the introduction of a new cartridge.
- the damping effect obtained is complete over the entire length of the stroke of the damper piston (71).
- a variation in the ratio of the surfaces of the damper pistons (71) and of the cylinder head (15) makes it possible to modulate the effects, in particular at the chamber opening.
- a ratio close to 1 leads to a blockage of the breech during the path of the ammunition in the barrel detrimental to the damping effect of the device
- the stored energy is dissipated during the recoil of the piston shock absorber chasing gases through the discharge channel.
- a ratio close to _ will produce a half damping of the recoil of the weapon.
- a judicious metering of the flow (79) of gas evacuation by the distribution / regulation valve (74) can be obtained by means of a controlled adjustment of the position of the drawer (75) by a screw (75 bis) in order to increase or reduce the view of the sections of the switch channel (76 bis) and the discharge channel (79).
- the initial rate of recoil damping is equal to the ratio of the sections of the cylinder head and shock absorber pistons. An appropriate value of this ratio can be adopted to create a delay effect at the opening of the cylinder head.
- the sealing principle of the damping piston (71) follows that of the cylinder head (15) which is the subject of patents No. 0204731 and 0300520 by the same author.
- an expanding segment / corolla (under gas pressure) placed at the head of the shock absorber piston will guarantee the perfect seal of the shock absorber.
- the present system is moreover compatible with the firing of holster ammunition subject to a borrowing of the gases advantageously placed at the level of the neck of the holster, the presence of which however causes a delay in the transportation of the gases due to the separation delay. the ammunition of its case during which the recoil of the breech cannot be controlled.
- FUEL CELLS Boards 2/9, fig. 2
- the chassis comprises a housing (70) for receiving a fuel cell and its fuel cartridge situated in the handle / stock (4) behind the magazine housings (22 & 23).
- This arrangement makes it possible to easily increase the volume reserved by a simple extension of the rear part of the handle / stock (4), nozzle (5) and barrel (1) of the chassis without causing any appreciable modification of the weapon other than its length.
- ADVANTAGES OF ELECTRONICS IN THE WEAPON The introduction of electrical energy and microprocessors leads to a simplification of the mechanisms, therefore a weight saving, and to the integration of particularly important new functions: detection of cartridge presence in the cannon, selection of shot per shot or burst directly from the trigger, - selection of the number of ammunition fired per burst, counter of remaining shots, counter of shot by accredited shooter, total counter of shots fired (cannon wear), clock: date and firing time, - recording: the central calculation unit has a memory capacity allowing to restore all the elements of a firing (person, date & time, number of shots ...), firing security by automatic recognition of the fingerprint of the accredited shooter (or shooters), programming (enrollment) of persons authorized to use the weapon, - automatic type detection (short, long, etc.) charger engaged in the weapon, battery charge display indicator.
- the trigger tail constitutes a real waterproof rotator with three positions whose axis coincides with that of the trigger.
- the selection of the shot / blow or burst shot is then made by progressive depression of the trigger tail.
- the programming of the rate of fire as much as the number of ammunition fired by short burst takes place by simple connection of the weapon to a computer (access by code and authentication).
- the weapon in addition to its capacity to display the parameters in the fire control, comprises a screen (68) for displaying the following information: - presence of a munition in the chamber, number of remaining munitions, authorization to fire, selection: hit / hit or burst, date & time, - number of munitions remaining, name (or code) of the accredited shooters, battery charge.
- the screen In order to have essential information (shooting authorization, number of cartridges remaining, shooting selection) the screen will be advantageously located (fig. 1, N ° 68) at the rear of the foot of the donkey, in the axis of the line of sight so as to be permanently visible to the shooter.
- a micro push-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 which could lead the user to separate from it.
- the electronic circuit of the weapon comprises a clock and a memory, the information of which can be viewed upon 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 & time of shots, selection (shot / shot or burst), identity of the shooter, number of ammunition fired, - date & time of accreditations of people, total ammunition fired over a period (eg year), statistics (gun aging, weapon, etc.).
- the weapon comprises a device for counting the ammunition present by recording the presence of an ammunition in the chamber and knowing the position of the front and rear carriers of the magazine.
- the magazine well is provided with contactors located in the carcass at the top and bottom of the sliding groove of each conveyor button.
- the position information of each button thus collected is transmitted to the central microprocessor which assigns a value, contained in its memory and supplemented by the detection of a possible presence of cartridge in the barrel, of overall capacity of the weapon with the magazine .
- the magazine well may include a scale of sensors 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 conveyor when removing a cartridge from the corresponding compartment. Referencing the position of each sensor will allow the central unit to determine the capacity of each compartment and to supplement it with the possible presence of a cartridge in the barrel to deduce the capacity of the weapon.
- the number of shots fired is determined using the number of discharges actually counted by firing touch (there is no electric arc in the absence of a cartridge) or inductive currents in the case an induction ignition.
- the weapon according to the invention must be capable of flawless functioning whatever the environmental conditions (severe thunderstorms, high-power radar radiation, nuclear electromagnetic flashes, etc.). To this end, the necessary shielding of vital elements (central computing unit, memories of the identification block, primers, etc.) will be adopted in order to guarantee perfect insensitivity to these phenomena.
- twin-barrel design of the chassis according to the invention has many advantages compared to current solutions, in particular in terms of precision and firepower. These advantages are listed as follows.
- the barrels are mounted floating in their cradle, the side by side arrangement guarantees their greatest length offering a real sniping capacity. Security.
- Safety trigger the latter being composed of a particularly innovative "counter-trigger” since it allows rapid implementation of the very hand which holds the weapon, and this in a totally ambidextrous manner.
- Ammunition easy, simplified and economical storage: limited to ready-to-use ammunition. The elimination of the procedures for collecting, processing and repackaging used cases is synonymous with substantial savings. Locking of the weapon by introduction of a removable lock ensuring the locking of the trigger and the disassembly lock. Control of detention: systematic empowerment of shooters using the weapon according to the invention as the real answer to the problems of unauthorized employment or diversion.
- tandem magazine the tandem arrangement of the compartments and three ammunition stacks makes it possible to carry up to three times the capacity of current magazines, or more than one hundred cartridges.
- This device concentrates the firepower of a machine gun in an assault rifle, opening the way to a new market for compact and light weapons with extraordinary firepower.
- the effective (or projectable) mass is equal to that carried, ie 50% more than with holstered ammunition.
- the chassis according to the invention constitutes a basis for developing a new generation of weapons combining the advantages of the assault rifle, sniper rifle, machine gun and grenade launcher.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Toys (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03756047A EP1664660A1 (fr) | 2003-06-03 | 2003-06-03 | Chassis bi-canons pour arme individuelle |
US10/587,891 US20070151438A1 (en) | 2002-06-03 | 2003-06-03 | Double-barrelled body for a personal firearm |
AU2003255625A AU2003255625A1 (en) | 2002-06-03 | 2003-06-03 | Double-barrelled body for a personal firearm |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR02/06763 | 2002-06-03 | ||
FR0206763A FR2840397B1 (fr) | 2002-06-03 | 2002-06-03 | Chassis bi-canons pour arme individuelle |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003102488A1 true WO2003102488A1 (fr) | 2003-12-11 |
Family
ID=29558902
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2003/001662 WO2003102488A1 (fr) | 2002-06-03 | 2003-06-03 | Chassis bi-canons pour arme individuelle |
Country Status (4)
Country | Link |
---|---|
US (1) | US20070151438A1 (fr) |
AU (1) | AU2003255625A1 (fr) |
FR (1) | FR2840397B1 (fr) |
WO (1) | WO2003102488A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1746378A1 (fr) * | 2005-07-18 | 2007-01-24 | T.D.I. Arms Ltd. | Unipode télescopique. |
Families Citing this family (14)
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ITBS20110071A1 (it) | 2011-05-19 | 2012-11-20 | Arsenal Firearms Finance Ltd | Pistola a due canne e caricatore bi-filare |
CN110145964A (zh) * | 2013-04-02 | 2019-08-20 | 王龙 | 一种采用双排双进弹夹的92式手枪 |
US20150377572A1 (en) * | 2014-06-26 | 2015-12-31 | MP&K Group Inc. | System and method for tracking ammunition |
RU2619975C2 (ru) * | 2015-06-16 | 2017-05-22 | Иван Максимович Котляр | Двуствольный автомат калашникова |
RU2614742C1 (ru) * | 2015-12-29 | 2017-03-29 | Александр Георгиевич Семенов | Стрелковое оружие |
CN108072294A (zh) * | 2016-11-23 | 2018-05-25 | 深圳市轻准科技有限公司 | 一种榴弹发射器 |
CN109297355A (zh) * | 2017-05-19 | 2019-02-01 | 寇长花 | 发射枪 |
US11035636B2 (en) | 2019-07-26 | 2021-06-15 | Smith & Wesson Inc. | Shotgun ammunition feeding system |
US11306995B2 (en) | 2019-08-06 | 2022-04-19 | Smith & Wesson Inc. | Shotgun configuration |
CN110345810B (zh) * | 2019-08-13 | 2021-04-02 | 安徽理工大学 | 一种复合式电磁狙击步枪 |
US11326845B2 (en) | 2019-08-13 | 2022-05-10 | Smith & Wesson Inc. | Firearm having reciprocable breech cover |
US11022386B2 (en) | 2019-08-15 | 2021-06-01 | Smith & Wesson Inc. | Firearm breech cover interlock |
US11306986B1 (en) | 2021-02-22 | 2022-04-19 | Lemoy Titus | Transformer sub-pistol firearm |
CN114294994B (zh) * | 2021-12-31 | 2023-03-28 | 苗军 | 一种间歇换膛的无壳弹枪 |
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- 2003-06-03 AU AU2003255625A patent/AU2003255625A1/en not_active Abandoned
- 2003-06-03 WO PCT/FR2003/001662 patent/WO2003102488A1/fr active Application Filing
- 2003-06-03 US US10/587,891 patent/US20070151438A1/en not_active Abandoned
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EP0108250A1 (fr) | 1982-10-05 | 1984-05-16 | Fuji Photo Film Co., Ltd. | Matériau photographique couleur multicouche inversible à l'halogénure d'argent |
EP0204731A1 (fr) | 1984-11-13 | 1986-12-17 | CHINOIN Gyogyszer és Vegyészeti Termékek Gyára RT. | DERIVES DE 4-SUBSTITUE-PYRIMIDO AD6,1-a BD ISOQUINOLINE ET PROCEDE DE PREPARATION |
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EP0759531A1 (fr) | 1995-08-10 | 1997-02-26 | HECKLER & KOCH GMBH | Arme à feu automatique ayant deux canons échangeables qui sont fixés l'un à l'autre |
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Publication number | Priority date | Publication date | Assignee | Title |
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EP1746378A1 (fr) * | 2005-07-18 | 2007-01-24 | T.D.I. Arms Ltd. | Unipode télescopique. |
US7610711B2 (en) | 2005-07-18 | 2009-11-03 | TDI Arms, Ltd. | Telescoping leg |
Also Published As
Publication number | Publication date |
---|---|
US20070151438A1 (en) | 2007-07-05 |
AU2003255625A1 (en) | 2003-12-19 |
FR2840397A1 (fr) | 2003-12-05 |
FR2840397B1 (fr) | 2004-09-10 |
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