Automatic small arms

IPC classes for russian patent Automatic small arms (RU 2438088):

F41C7 - Shoulder-fired smallarms, e.g. rifles, carbines, shotguns (specially adapted for underwater use F41C0009060000)

F41A19/14 - Hammers, i.e. pivotably-mounted striker elements; Hammer mountings

Another patents in same IPC classes:

Gun stock / 2435126

Stock of automatic small arms with bullpup layout of a monitor gun class comprises a sliding joint with a male movable shooting device. The stock is equipped with a lower longitudinal window for lower ejection of cartridges. The window neck is placed between the right and left gun handles, the lower part of which by means of links is connected to the lower part of the neck. The base of the left handle of the gun is connected to the lower wall relative to the horizontal plane of the barrel in the longitudinal side pocket, which serves for passage of the side intermediate magazine of a gun shooting unit. The guide stock is equipped with a set for a hinged automatic fixator of the back position of a shooting unit, a trigger bracket and fixation elements of its upper longitudinal cover. The stock is made of polymer material. There is a cut facing the vertical plane of the gun on the gun handles. The cut serves to locate gunner's fingers in it. The vertical breech surface of every handle has larger width relative to the horizontal section of these handles compared to their muzzle part. The upper part of each handle has reduced thickness and increased longitudinal size. The vertical breech part of each handle with its upper part is located below the thumb of the gunner's hand holding this handle. The base of the right handle is arranged under the longitudinal tubular guide of the safety device.

Small arms / 2431798

Small arms with manual reloading includes barrel fixed in barrel receiver, bolt carrier assembly with bolt and firing mechanism. The latter includes trigger, trigger cam, trigger lever and firing trigger. Trigger lever is kinematically connected to firing trigger. On trigger on lateral sides there made are support projections, and on bolt carrier assembly there made at an acute angle to the axis is longitudinal slot. Mating projections are made throughout the trigger body before support projections and on lateral sides on both sides of the slot so that they can interact in run-up of bolt carrier assembly at pushed firing trigger.

Sub-machine gun / 2422752

Sub-machine gun includes barrel with barrel receiver and its cover, gas tube, bolt with bolt carrier assembly and return spring and firing mechanism with trigger retarder. Trigger through rollers in its tail part is in constant contact with its retarder made in the form of a plate freely put with one of its ends on the axis and equipped with spring, the second ends of which contact with the cam allowing to increase or decrease spring pressure through trigger retarder. Bolt is locked with cartridge extractor from magazine, which enters the slot when the bolt is turned counter-clockwise; the slot is made in end projection of barrel, as well as case ejector which when the bolt is in such position turns out to be in the cut made in the end of slot of bolt for ejector. Slot in end projection of barrel and cut in slot for case ejector have a gap allowing the cartridge extractor to attack during firing the end projection of barrel, which accompanies the muzzle deviation of the barrel downwards and to the left.

Magazine weapon with manual reloading / 2411440

Magazine weapon with manual reloading comprises box 1 with journal 2, changing into butt 3, box-installed barrel 4, cartridge-chamber 5, magazine 6 for cartridges, longitudinal sliding lock 7 with its control handle 8 and trigger 9. Handle 8 is extended, flattened, at least on part of its length and is arranged along axis of lock. It is bent down trigger with extension below its level, to form a roofing of gun-type handle. Spacer device is provided between lock handle and box journal, which is represented by permanent magnets, inbuilt, accordingly, into box journal and lock handle opposite to each other, with alignment of identical poles towards each other, with the possibility of automatic mutual pushing with magnetic forces.

Firearm / 2410626

Invention relates to small arms and can be used in designing bullpup small arm. Said small arm comprises breech box with barrel. Said breech box accommodates breech frame with bolt. Bolt central bore accommodates spring-loaded striker with hammer nose displacing beyond bolt mirror. Trigger mechanism is arranged in single case fixed in breech box. Spring-loaded inertial safety lock is fitted on axle nearby case rear wall. Hammer fitted on axle in the case can interact with hammer release spring in contact between hammer and striker. In said position, static moment developed by fire spring on hammer is lower than that acting in opposite direction under action in interaction hammer release spring with ledged made thereon.

Heavy rifle / 2408830

Rifle with recoil compensator includes barrel, bolt, firing mechanism, and magazine with shells. On rear side of the main bolt there installed is additional magazine, additional bolt with fixed striker, and movable barrel directed backwards and connected to movable striker of firing mechanism of heavy rifle.

Firearm / 2399010

Firearm comprises breech frame that can accommodate at least one of two barrels for rounds with different-size cartridge cases. Breech frame accommodates spring-loaded sleeve extending beyond bolt face. Sleeve OD coincides with larger cartridge case flange diametre while its ID mates with that is smaller cartridge case flange. Barrel for larger cartridge case round has a stop while smaller cartridge case extractor has mating ledge. With barrel for larger cartridge case round mounted in firearm, barrel stop interacts with smaller cartridge case extractor ledge to turn extractor from barrel bore axis. Extractor hooks are arranged symmetric about the axis passing the centers of holes receiving the striker and cartridge case ejector.

Firearm / 2399009

Proposed firearm comprises barrel, breech box, breech frame with bolt, receptacle for at least two magazines, stop for magazine to be locked in opening front part, spring-loaded latch for magazine ledge and magazine. Breech box rear part is arranged in the stock and has its bottom part open with side walls bent inward. Breech box bends support axially moving carriage. Said carriage has at least two receptacles with their shape matching the magazine entrance outer surface that can be selectively aligned with opening made in aforesaid stock. Front wed of every opening has magazine engagement ledge while latch base is arranged on axle nearby rear web to turn toward said opening. Pin and spring-loaded latch are fixed on the latch base to receive magazine thrust ledge there between.

Sniper repeating rifle / 2399008

Proposed rifle comprises breech frame, breech chamber with bolt, trigger and firing mechanism and magazine. Breech frame crosswise slot accommodates the base of reload handle with its central part furnished with limit ledges arranged between breech frame side surface and breech box inner wall inner surface. "П"-like switch is fitted on axle arranged in the handle base front part extending from breech box and handle safety lever is arranged behind it. Spring is fitted between handle base and safety lever. Handle base has a hole, elongated crosswise, to receive axle fitted in aforesaid switch. Said axle, with switch turning, acts on curvilinear surface of handle safety lever part, below its axis of rotation, moves short arm of L-like ledge out from breech box ledge. Now, breech frame and reload handle can move rearward.

Sniper repeating rifle / 2399007

Proposed rifle comprises breech frame, barrel with breech chamber and breech ring with fire thrusts. Bolt is fitted in breech frame to reciprocate therein. Spring-loaded extractor with cartridge case flange hook. Cylinder-conic part of cartridge case is arranged in barrel breech chamber while cartridge case flange seats in bolt cutout, behind the extractor hook. Distinguishing feature of this invention consists in that spring-loaded sleeve is arranged in the bolt, along its central axis. Said sleeve can contact cartridge case flange and move axially with it until cartridge case slope rests on breech chamber mating cone. Hammer front part is arranged inside aforesaid sleeve in lengthwise bore made along central axis.

Firearm / 2410626

Automatic small arms / 2438088

Automatic small arms include casing with barrel fixed in it, free bolt, return mechanism and housing. Free bolt is installed on guides with possibility of axial back-and-forth movement. Housing includes fore-end, pistol grip, back-plate and trigger firing mechanism. Back-plate is made in the form of a solid part from cast plastic material. Stop is installed in the housing at the contact point with the trigger during firing. Stop is made from elastic material. Stop surface area which is in contact with the trigger is at least 50% of the trigger surface area, and spot of contact of stop with trigger is maximum offset from trigger rotation axis.

Small arms / 2245502

The small arms has a body and a microcomputer for an operative change of the fire conditions, it is provided with a signaling transmitter of environment parameters, and the microcomputer is installed on the arms body and connected to the signaling transmitter of environment parameters.

Method for operation of magazine-fed automatic weapon / 2247295

The method provides for feeding of cartridges from two and more magazines simultaneously. The following operations are performed in succession: cartridge feeding from the magazine to the drum chamber, drum turning up to the coincidence of the chamber axis with the barrel axis, making a shot, turning of the drum for the subsequent extraction of the cartridge case, feeding of cartridges to two and more chambers is accomplished from two and more magazines simultaneously. Drum turning for making a shot is performed up to the coincidence of the axes of two and more loaded chambers with the axes of the respective number of barrels installed in the weapon, the shots are made simultaneously or in succession.

Scatter-rifle with gasses withdrawal / 2249168

The invention is pertinent to the field of scatter-rifles with gasses withdrawal, in particular, to the auto-loading smoothbore rifles. The scatter-rifles with gasses withdrawal contains a barrel, on which there is a cylinder with a reloading piston linked with a rod, a retracting spring, a gear to control pressure of the gases made in the form of a valve and a spring, an automatics switching-off safety valve having a bucket with two grooves. At that the mentioned piston is located inside the cylinder in front of the reloading piston with a capability of a longitudinal motion perpendicularly to the barrel. The invention allows to operate in an automatic mode using cartridges of different power and to readjust for a manual reloading.

Hunting self-loading carbine / 2249781

The invention solves the task of improving carbine's operational characteristics by increasing its safety, design simplification, gapless joining of receiver with barrel and gun-stock. Hunting self-loading carbine has receiver with barrel, breach block, firing and retracting mechanism, trigger, located in receiver and base, device for fastening receiver and barrel to gun-stock. The innovation in the carbine is just that device for fastening receiver with barrel to gun-stock includes charger, firmly fixed to gun-stock, bushing, installed in the opening of the gun-stock between receiver and base of the trigger guard, screws and stop. For all that receiver has longitudinal lug and diametrical groove, contacting with corresponding groove, lug and cylindrical hollow, made in the cartridge clip. The stop is installed in receiver and provided with pin, interacting with the opening in the cartridge clip.

Mechanism of automatic infantry weapon / 2251650

The invention refers to automatic infantry weapon, to mechanisms which mobile links in extreme positions impact the weapon decreasing grouping of shots mainly to the mechanisms that lock the barrel's bore. In the weapon mechanism last driving member and connected with it intermediate links moving in the same direction are fulfilled light -weight, kinematically connected with a screw gear with two rotatable in the opposite direction fly-wheels which are accumulators of kinetic energy. Rotational axes of the fly-wheels are parallel to the axis of the barrel's bore and with one of these fly-wheels with a screw-gear a counter balance is connected moving in the opposite direction of the driving member and connected with it links. Reduced mass of the forward moving details of the group of driven link, availability of the counter balance of the driven link, construction and location of rotatable fly-wheels which have no forward moving, are offsetting the axes of impacts against the weapon from forward moving links and mutually offset reactive rotational moments acting against the weapon from the fly-wheels' side with additional stabilization of an angular location of the weapon from gyroscopic action of the fly-wheels reducing hitting and overturning of the mobile parts of the mechanism on the weapon.

Small arms with uninterrupted procedure of firing (modifications), functional assemblies of small arms and method for simultaneous reduction of recoil and sound level of small arms / 2254539

Three modifications of small arms are offered. The first modification is featured by the fact that the weapon represents an attack submachine gun provided with a mechanism for a smooth strikeless release of the hammer, mechanism for a delay of the breechblock in the rear position at an empty magazine, handle-fore-grip, butt strap, the locking device is of the friction-wedge type, and the firing mechanism is of the cam double-action type with two regimes of firing with a side hammer. The second modification represents a field submachine gun provided with a mechanism for a delay of the breechblock in the rear position at an empty magazine with a breechblock stop indicator, handle-fore-grip with a retractable leg, reaction-acoustic compensator, the firing mechanism is of the striking type with two regimes of firing, it is positioned inside the breechblock and inside the return spring, and the locking device is of the friction-wedge type. According to the third modification, the small arms represent a machine gun provided with an automatic safety device actuated at a release of the fighting grip of the weapon, reaction-acoustic compensator, balancer-compensator of impact loads, mechanism for feed of cartridges from the cartridge belt to the ramming line from the bottom according to the principle of magazine systems, rod deflector of cartridge cases, mechanism for a delay of the moment of breechblock unlocking, and the trigger device of the striking type firing mechanism is made for control of the regimes of firing by the trigger. The friction-wedge locking device with the unlocking mechanism is featured by the fact that the return spring is positioned inside the breechblock and has a front stop made in the form of movable bush with side lugs passing through the slots in the breechblock wall. The cam-type double-action firing mechanism is made for accomplishment of two firing modes. The specific feature of this firing mechanism is the fact that the hammer has a spear-shaped end-piece with an annular spear-shaped shoulder, and the entire device is positioned inside the breechblock and return spring. The reaction-acoustic compensator is made with a gas dynamic or with a mechanic-dynamic control of the gas flows. In the method for simultaneous release of the weapon recoil force and decrease of the level of the acoustic component at a shot use is made of a reaction-acoustic compensator, the prebullet and pastbullet flows of powder gases are directed to the axial nozzle chambers, and then to the nozzles with a thrust vector reducing the weapon recoil force, and withdrawn to the environment through the frequency-converting gratings.

Arrangement for fastening of elements of infantry weapon / 2256137

The arrangement for fastening of elements of infantry weapon has a body of a trigger mechanism fulfilled as a single whole with a launching crampon and a cartridge clip and a stock fixed on the barrel with a receiver independently one from another with screws and the stock with the forward and the rear tightening screws.

Double-barreled gun with vertical disposition of barrels with one hammer / 2262058

The double-barreled gun with vertical disposition of barrels with one hammer has a box with a hammer placed unit, two strikers positioned one above the other, switch engageable with the hammer and - with one of the strikers, switch button and a pull, the latter is made in the form of a rocker hinge-mounted on the box for engagement of its rear arm with the switch button, positioned on the front arm of the rocker is the switch for engagement with the upper striker. A groove is made on the rear arm of the pull mating the shoulder made on the switch button that is spring-loaded relative to the pull and made in the form of a L-shaped component.

FIELD: weapons and ammunition.

SUBSTANCE: automatic small arms include casing with barrel fixed in it, free bolt, return mechanism and housing. Free bolt is installed on guides with possibility of axial back-and-forth movement. Housing includes fore-end, pistol grip, back-plate and trigger firing mechanism. Back-plate is made in the form of a solid part from cast plastic material. Stop is installed in the housing at the contact point with the trigger during firing. Stop is made from elastic material. Stop surface area which is in contact with the trigger is at least 50% of the trigger surface area, and spot of contact of stop with trigger is maximum offset from trigger rotation axis.

EFFECT: increasing arms service life.

3 cl, 3 dwg

The invention relates to weapons technology and can be used in various designs of automatic small arms.

Known automatic small arms, containing casing with fixed therein barrel, free shutter mounted on the guide housing with the possibility of axial movement, the return mechanism mounted in the lower part of the housing, the trigger mechanism of the pistol grip, in the inner cavity of which is placed a box store, held spring-loaded latch, and retractable stock. It functions recoil pad performs the back wall of the receiver (the description of the patent US 3651736, F41D 11/02, publ. 28.03.72).

The disadvantage of this construction of automatic weapons is a large range of parts and, as a consequence, low adaptability.

Known automatic small arms, containing casing with fixed therein barrel, free shutter mounted on the guides, with the possibility of axial movement, the return mechanism, a housing, comprising handguard, pistol grip and recoil pad, made as an integral part of the molded plastic, hammer firing mechanism mounted in the housing, and a box store, located in the neck. In it, the shutter is made in the form of l-shaped parts, a long the side of which is placed over the barrel, short before the breech part of the barrel (the description of the patent RU 2202089, IPC 7 F41C 7/00, F41A 3/54, publ. 10.04.2003 - prototype).

The main disadvantage of this construction of automatic small arms is insufficient durability of the plastic body at the place of contact with the trigger, not providing the required level of operational resource weapons when using 9×19-mm ammunition increased power.

The objective of the invention is to increase the service life and reliability of automatic small arms.

The technical result is achieved in that in the automatic small arms, containing casing with fixed therein barrel, free shutter mounted on the guides for axial reciprocating movement, the return mechanism, a housing, comprising handguard, pistol grip and recoil pad, made as an integral part of the molded plastic, and a hammer firing mechanism mounted in the body:

in the case at the site of contact with the trigger when firing has focus, is made of elastic material;

- - area of emphasis, parts which come into contact with the trigger, is not less than 50% of the area of the trigger and the contact area of emphasis with the trigger maximum offset from the axis of rotation of the trigger;

- emphasis can be made hollow, with the bringing from 2 to 12% of the volume of the stop;

- excavation can be performed outside of the contact spot of focus with the trigger.

The foregoing is illustrated by drawings, where:

- figure 1 shows a left side view of automatic firearms with a partial longitudinal cross-section on the trigger mechanism and recoil;

- figure 2 shows a cross section of the stop and the trigger;

- figure 3 shows a longitudinal section on trigger, stop and recoil pad.

Automatic small arms includes a casing 1 with fixed therein the barrel 2. On the guides of the casing 3 is free shutter 4 for axial reciprocating movement. Inside the shroud posted by the return mechanism 5, interacting with the shutter 4. In case 6, made of high-strength molded plastic in the form of a single part that includes handguard, pistol grip and recoil pad, set the trigger mechanism. In place of the contact body 6 trigger 7 trigger mechanism has an emphasis 8 is made of elastic material.

When firing the trigger 7 to the rear hits the stop 8, a considerable part of the energy of the hammer is extinguished due to the deformation of the stop 8 and additionally due to the elastic properties of the material stops. Ultimately transmitted by the trigger 7 residual energy is significantly below the value of the voltage that can destroy the body material 6, which then provides design high operational stability. Assembly 8 can be performed in the recess 9, which provides an additional reduction of the impact energy due to the greater deformation stops. Structurally, the notch in the fence can be made in different ways: it can have both longitudinal and transverse direction relative to the direction of movement of the trigger 7. In the cross section of the recess may be circular, square, rectangular, oval, trapezoidal or any other shape, including combining various of the above forms. The notch in the stop 8 may be made in the form of a through hole and a blind groove. The optimal size of the hole, providing the necessary positive effects, ranging from 2 to 12% of the total stops. Excavation can be performed outside of the contact spot of focus with the trigger.

Stop 8 can be mounted in the housing 6 as freely, and with tension. Securing the stop in the housing can be performed by any available means: adhesive bonding, mechanical using screws, self-tapping screws and other means, the use of focus as a valve during injection molding of the housing 6 and Vice versa, the design of the connection due to partial melting or tightness of the technological tide on the fence 8, etc.

The fence can be made from any elastic (rubber-like) material, it is preferable to use thermoplastic on urethan or polyester thermoplastic elastomer, recyclable high-performance molding under pressure.

The area of emphasis, parts which come into contact with the trigger 7 is not less than 50% of the area of the trigger. If the area of emphasis 8 parts which come into contact with the trigger, less than 50% of the area of the trigger, the positive effect is not achieved, because the amount of energy dissipation of the trigger is insufficient. The maximum area of focus is limited to only the design of the housing 6 automatic small arms. Contact patch lock with hammer maximum offset from the axis of rotation of the trigger.

The technical solution according to the invention is implemented in a sample of 9-mm submachine gun, which ensured the integrity of the plastic housing and reliable operation of this construction with the resource, up to 3 times higher than the specified level.

1. Automatic small arms, containing casing with fixed therein barrel, free shutter mounted on the guides for axial reciprocating movement, the return mechanism, a housing, comprising handguard, pistol grip and recoil pad, made as an integral part of the molded plastic, and a hammer firing mechanism mounted in the housing, characterized in that in the housing in contact with the trigger when firing has focus, made of an elastic the second material, the area of emphasis, parts which come into contact with the trigger, is not less than 50% of the area of the trigger and the contact area of emphasis with the trigger maximum offset from the axis of rotation of the trigger.

2. Automatic small arms according to claim 1, characterized in that the emphasis is made excavation, ranging from 2 to 12% of the focus.

3. Automatic small arms according to claim 1 or 2, characterized in that in the recess outside the contact spot of focus with the trigger.