WO1999005467A1 - Automatic weapon 'kalashnikov assault rifle' - Google Patents

Automatic weapon 'kalashnikov assault rifle' Download PDF

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Publication number
WO1999005467A1
WO1999005467A1 PCT/IB1997/001597 IB9701597W WO9905467A1 WO 1999005467 A1 WO1999005467 A1 WO 1999005467A1 IB 9701597 W IB9701597 W IB 9701597W WO 9905467 A1 WO9905467 A1 WO 9905467A1
Authority
WO
WIPO (PCT)
Prior art keywords
bolt support
firing
sear
barrel
automatic
Prior art date
Application number
PCT/IB1997/001597
Other languages
French (fr)
Inventor
Mikhail T. Kalashnikov
Yuri K. Aleksandrov
Nikolay A. Bezborodov
Viktor M. Kalashnikov
Azary I. Nesterov
Valery N. Paranin
Original Assignee
Izhmash Ojsc
Ruspa Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Izhmash Ojsc, Ruspa Ag filed Critical Izhmash Ojsc
Priority to ROA200000069A priority Critical patent/RO119094B1/en
Priority to PL97338250A priority patent/PL185081B1/en
Priority to SI9720099A priority patent/SI20224A/en
Priority to UA2000010367A priority patent/UA45494C2/en
Priority to AU52338/98A priority patent/AU5233898A/en
Priority to HU0002969A priority patent/HU222414B1/en
Publication of WO1999005467A1 publication Critical patent/WO1999005467A1/en
Priority to FI20000117A priority patent/FI113802B/en
Priority to BG104097A priority patent/BG104097A/en

Links

Classifications

    • 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
    • F41A19/00—Firing or trigger mechanisms; Cocking mechanisms
    • F41A19/06—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms
    • F41A19/25—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins
    • F41A19/27—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins the percussion or firing pin being movable relative to the breech-block
    • F41A19/29—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins the percussion or firing pin being movable relative to the breech-block propelled by a spring under tension
    • F41A19/30—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins the percussion or firing pin being movable relative to the breech-block propelled by a spring under tension in bolt-action guns
    • F41A19/33—Arrangements for the selection of automatic or semi-automatic fire
    • 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
    • F41A21/00—Barrels; Gun tubes; Muzzle attachments; Barrel mounting means
    • F41A21/16—Barrels or gun tubes characterised by the shape of the bore
    • F41A21/18—Grooves-Rifling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A5/00—Mechanisms or systems operated by propellant charge energy for automatically opening the lock
    • F41A5/18—Mechanisms or systems operated by propellant charge energy for automatically opening the lock gas-operated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41C—SMALLARMS, e.g. PISTOLS, RIFLES; ACCESSORIES THEREFOR
    • F41C23/00—Butts; Butt plates; Stocks
    • F41C23/04—Folding or telescopic stocks or stock parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41C—SMALLARMS, e.g. PISTOLS, RIFLES; ACCESSORIES THEREFOR
    • F41C23/00—Butts; Butt plates; Stocks
    • F41C23/22—Stocks having space for the storage of objects

Definitions

  • the invention relates to hand automatic firearms.
  • 7.62 mm AK-47 Kalashnikov assault rifle (see Manual on firing, 7.62 mm AK Kalashnikov assault rifle, M. DOSAAF Publishing House, 1 969) has a receiver, a barrel with cartridge chamber and a rifled part, a bolt support with a bolt, a trigger and firing mechanism with a firing trigger, firing hammer and autosafety and an unfolding butt.
  • the shortcomings of this model are low reliability, failure of the rifle when it is used in extreme climatic and non-standard conditions, relatively low accuracy of fire, insufficient operational characteristics.
  • the object of the claimed invention is to increase reliability and operational characteristics of the rifle.
  • the assault rifle features a receiver, a breech locking mechanism comprising a turning bolt with a firing pin placed in the bolt support installed on rails of the receiver and having a rear lug interacting with the firing hammer, the trigger and firing lock comprising a hammer and a sear of autosafety with sear notch, a gas-escape mechanism with a gas tube and a piston the rod of which is installed in the hole of the bolt support, a folding butt with retainers of firing and stowed positions and a barrel with a rear-sight bed comprising a cartridge chamber and a rifled portion.
  • the novelty of the claimed device is that the bolt support is made in such a way that it can interact in the front position with the tapered supporting surface of the receiver; the rear lug of the bolt support has such length which prevents contact of the firing hammer with the firing pin when the bolt support recoils; the rod is placed in the bolt support in such a way that it allows for limited angular displacement, and the gas tube is equipped with a lug contacting the slot of the rear sight bed.
  • the rod of the gas piston is inserted into the hole of the bolt support with the help of threading with clearance.
  • the sear of autosafety is equipped with a sear notch of hand reloading in the form of a platform on the sear placed at a distance from the path of the bolt support providing contact of the bolt support with the firing hammer; the platform of the automatic sear notch of the sear is made at a distance from the path of the bolt support providing a clearance between the bolt support and the firing hammer.
  • the gas escape tube is spring-loaded with respect to the rear-sight bed in the direction of the muzzle end.
  • FIG. 1 General view of the assault rifle;
  • Fig. 2 View A in Fig. 1 , the bolt support in the front position in contact with the lug of the receiver;
  • FIG. 4 cross-sectional view G-G in Fig. 3;
  • Fig. 1 1 butt, magnification D in Fig. 8;
  • Fig. 1 2 barrel (cross-section);
  • FIG. 1 3 side view of the rifling in the barrel, cross-section E-E in Fig. 1 2;
  • Fig. 1 4 not ⁇ f( in Fig. 1 3; and Fig. 1 5 note M in Fig. 3.
  • the claimed automatic weapon (Fig. 1 ) contains a receiver 1 to which the barrel 2 is attached at the front and a folding plastic butt 3 at the back. On the barrel a rear-sight bed 4 and a gas chamber 5 are installed; between them a gas tube 6 is placed.
  • the breech locking mechanism is installed (Fig. 3) comprising a turning bolt 8 with a firing pin 9 placed in the bolt support 1 0.
  • the bolt support has a rear lug 1 1 ; in the hole of the bolt support a rod 1 2 with a piston 1 3 is fixed with the help of threading with clearance.
  • the bolt support has a tapered supporting platform 1 4 (Fig.
  • a lug 1 5 with a reciprocal tapered platform 1 6 is made on the receiver.
  • the gas tube has a lug 1 7 down at the back which fits into the slot 1 8 of the rear-sight bed 4 and is spring- loaded by spring 1 9 in the direction of the muzzle end.
  • a trigger and firing mechanism is placed (Fig. 6) containing a firing hammer 20 and an autosafety with a sear 21 featuring hand reloading sear notch in the form of a platform 22 and an automatic sear notch in the form of a platform 23 (Fig. 7).
  • the butt 3 is fixed on a hinge.
  • a hollow plastic case 25 a buttplate 26, a pusher 27 with a lug 28 which contacts the retainer of the stowed position 29.
  • Inside the butt case reinforcing ribs 30 (Fig. 1 0) are made which form a trap 31 for the box 32 with accessories.
  • the box is spring-loaded by a spring 33 and rests against a turning cap 34 the lower lug 35 (Fig. 1 1 ) of which contacts the reciprocal lug 36 of the pusher 27.
  • the side recess 37 (Fig. 9) on the outer surface of the butt is made in the form of a seat to house the night-sight leaf 38 fixed on the receiver 1 .
  • the barrel 2 of the rifle (Fig. 1 2) comprises a cartridge chamber 40 with a supporting cone 41 and a rifled portion comprising a land conic taper 42, an additional conic area 43 and a cylinder portion 44.
  • the rifled portion of the barrel is a profile with rifling and lands (Figs. 1 3, 1 4) . Transition between them comprises clearlyab" portion with the radius r , mecanicbc" portion with the radius r 2 and expedicd" portion which is tangent n to radius r which is normal to surface S passing through the bore axis and the centre of the land; d is the land diameter and d R is the rifling diameter.
  • the automatic weapon operates in the following manner. To load the rifle it is necessary to pull the bolt support 1 0 backwards and release it abruptly. When the bolt support is pulled backward ist rear lug 1 1 cocks the hammer 20 which engages the sear notch of hand reloading 22 of the sear 21 of autosafety at a distance from the path of the bolt support which results in interference K between the hammer and the bolt support. When the firing trigger is pressed a shot takes place and powder gases actuate the bolt support via the piston 1 3 with the rod 1 2 and throw it back.
  • the additional conic area 43 promotes a smoother, more uniform cutting-in of the bullet reducing the specific pressure of the bullet on the lands. All that promotes smoother defomation of the bullet according to the form of the lands and increases the service life of the barrel.
  • Availability of the curved transition surface from the lands to the rifling sesabc" formed by radii ⁇ and r 2 , and a linear section responsiblecd" along the tangent allows for better filing the rifling by the bullet jacket thus preventing powder gas leakage and increasing stability of the bullet muzzle velocity.
  • the plastic butt 3 can be folded from firing position to stowed position and vice versa.
  • the retainer 29 of the stowed position engages the side edge of the buttplate 26 and by its tooth fixes the butt in the stowed position.
  • the night-sight leaf 38 is placed into the pocket 37 on the outer surface of the butt.
  • the cap 34 of the buttplate 26 With a finger; the cap will turn and open the hole in the buttplate.
  • the spring 33 the box will withdraw from the hole formed by the reinforcing ribs 30 in the cavity of the butte case 25.
  • the spring-loaded cap 34 will turn back to the initial position; to do this the lower lug 35 of the cap interacting with the lug 36 of the pusher 27 will move the pusher to the backward position.
  • the claimed invention completely solves the aimed technical problem: increase of reliability and operation characteristics, and it will be widely spread in new models of navalKalashnikov Assault Rifle" design manufactured at present (AK 1 01 , AK 102, AK 1 03, AK 104, AK 1 05 etc.).

Abstract

The invention relates to hand automatic firearms. The weapon comprises a receiver (1) in which a trigger and firing mechanism and a locking mechanism are installed. The trigger and firing mechanism comprises a firing hammer (20) and a sear of the autosafety with an automatic sear notch (21). The locking mechanism comprises a turning bolt (8) and a bolt support (10) with a rear lug interacting with the firing hammer (20). On the receiver (1) a butt (3) is installed on a hinge, and at the front part there is a barrel (2) with a gas-escape mechanism. The novelty of the claimed automatic weapon is that the bolt support (10) is made in such a way that it can interact with the tapered supporting surface of the receiver (1). The rear lug is made in such length which eliminates contact of the firing hammer (20) with the firing rod (9) when the bolt support (10) recoils. The rod (12) is installed in the bolt support in such a way that a limited angular turning is allowed, for example, on the threading with a clearance. The gas tube (6) has a lug (17) which contacts with the slot (18) of the rear-sight bed (4) and is spring-loaded in the direction of the muzzle end. The sear (21) is made with a platform (23) of the autosafety and a platform (22) of the hand reloading sear notch providing guaranteed contact of the bolt support (10) and the firing hammer (20) under hand reloading and a guaranteed clearance between them under automatic fire. In the butt there are reinforcing ribs (30) which form a trap (31) for the box (32) with accessories closed by a spring-loaded turning cap (34) installed in such a way that it can interact with the pusher (27) of the retainer (29) of the stowed position. In the rifled portion of the barrel (2) transition from the land to the bottom of rifling is made in the form of two conjugating radii and a tangent located perpendicularly to the plane passing through the bore axis of the barrel (2) and the centre of the land. In the barrel (2) between the conic taper of the lands (42) and the rifled portion an additional conic area (43) is made.

Description

Automatic weapon „Kalashnikov Assault Rifle'
The invention relates to hand automatic firearms.
Known 7.62 mm AK-47 Kalashnikov assault rifle (see Manual on firing, 7.62 mm AK Kalashnikov assault rifle, M. DOSAAF Publishing House, 1 969) has a receiver, a barrel with cartridge chamber and a rifled part, a bolt support with a bolt, a trigger and firing mechanism with a firing trigger, firing hammer and autosafety and an unfolding butt.
Known 7.62 mm improved AKMS Kalashnikov assault rifle with folding butt (see Manual on firing. 7.62 mm AKM and AKMS Kalashnikov assault rifle. M. Military Publishing House of the Ministry of Defence of the USSR, 1 971 ) taken as the prototype features a receiver, a breech locking mechanism containing a turning bolt with a firing rod placed in the bolt support installed on rails of the receiver and having a rear lug interacting with the firing hammer, a trigger and firing mechanism containing a hammer and a sear of autosafety, a gas-escape mechanism with a gas piston the rod of which is installed in the hole of the bolt support, a folding butt and a barrel with a rear-sight bed comprising a cartridge chamber and a rifled portion.
The shortcomings of this model are low reliability, failure of the rifle when it is used in extreme climatic and non-standard conditions, relatively low accuracy of fire, insufficient operational characteristics. The object of the claimed invention is to increase reliability and operational characteristics of the rifle.
To solve the problem the assault rifle features a receiver, a breech locking mechanism comprising a turning bolt with a firing pin placed in the bolt support installed on rails of the receiver and having a rear lug interacting with the firing hammer, the trigger and firing lock comprising a hammer and a sear of autosafety with sear notch, a gas-escape mechanism with a gas tube and a piston the rod of which is installed in the hole of the bolt support, a folding butt with retainers of firing and stowed positions and a barrel with a rear-sight bed comprising a cartridge chamber and a rifled portion.
The novelty of the claimed device is that the bolt support is made in such a way that it can interact in the front position with the tapered supporting surface of the receiver; the rear lug of the bolt support has such length which prevents contact of the firing hammer with the firing pin when the bolt support recoils; the rod is placed in the bolt support in such a way that it allows for limited angular displacement, and the gas tube is equipped with a lug contacting the slot of the rear sight bed.
The rod of the gas piston is inserted into the hole of the bolt support with the help of threading with clearance. The sear of autosafety is equipped with a sear notch of hand reloading in the form of a platform on the sear placed at a distance from the path of the bolt support providing contact of the bolt support with the firing hammer; the platform of the automatic sear notch of the sear is made at a distance from the path of the bolt support providing a clearance between the bolt support and the firing hammer.
Inside the butt there are reinforcing ribs which form a trap for accessory box which is closed by a spring-loaded turning cap installed in such a way that interaction of the pusher and the retainer of the stowed position is allowed.
The gas escape tube is spring-loaded with respect to the rear-sight bed in the direction of the muzzle end.
In the rifled portion of the barrel transition from the rifling land to the bottom of groove is made in the form of two adjoining radii and a tangent located perpendicularly to the plane passing through the bore line and the centre of the rifling land. In the barrel between the conic taper of lands and the rifled portion an additional conic section is made with the length of LL = (4...6)L, where L is the sum of the lengths of support cone of the cartridge chamber and conic taper of the lands.
Combination of the proposed features of the claimed automatic weapon has considerably increased reliability and operational characteristics of the unit.
The essence of the invention is illustrated by the following drawings:
Fig. 1 General view of the assault rifle; Fig. 2 View A in Fig. 1 , the bolt support in the front position in contact with the lug of the receiver;
Fig. 3 gas-escape mechanism;
Fig. 4 cross-sectional view G-G in Fig. 3;
Fig. 5 firing hammer in contact with the rear lug;
Fig. 6 firing hammer on the sear notch of the hand reloading of the automatic sear;
Fig. 7 firing hammer on the automatic sear notch of the automatic sear;
Fig. 8 plastic butt with the receiver (cross-section);
Fig. 9 butt, cross-section B-B in Fig. 8;
Fig. 1 0 butt, cross-section P - P in Fig. 8;
Fig. 1 1 butt, magnification D in Fig. 8;
Fig. 1 2 barrel (cross-section);
Fig. 1 3 side view of the rifling in the barrel, cross-section E-E in Fig. 1 2;
Fig. 1 4 notβ f( in Fig. 1 3; and Fig. 1 5 note M in Fig. 3.
The claimed automatic weapon (Fig. 1 ) contains a receiver 1 to which the barrel 2 is attached at the front and a folding plastic butt 3 at the back. On the barrel a rear-sight bed 4 and a gas chamber 5 are installed; between them a gas tube 6 is placed. In the receiver (Fig. 4) on rails 7 the breech locking mechanism is installed (Fig. 3) comprising a turning bolt 8 with a firing pin 9 placed in the bolt support 1 0. The bolt support has a rear lug 1 1 ; in the hole of the bolt support a rod 1 2 with a piston 1 3 is fixed with the help of threading with clearance. At the side the bolt support has a tapered supporting platform 1 4 (Fig. 2), on the receiver a lug 1 5 with a reciprocal tapered platform 1 6 is made. The gas tube has a lug 1 7 down at the back which fits into the slot 1 8 of the rear-sight bed 4 and is spring- loaded by spring 1 9 in the direction of the muzzle end. Inside the receiver a trigger and firing mechanism is placed (Fig. 6) containing a firing hammer 20 and an autosafety with a sear 21 featuring hand reloading sear notch in the form of a platform 22 and an automatic sear notch in the form of a platform 23 (Fig. 7). To the receiver 1 (Figs. 8, 9) with the help of an axle 24 the butt 3 is fixed on a hinge. It comprises a hollow plastic case 25, a buttplate 26, a pusher 27 with a lug 28 which contacts the retainer of the stowed position 29. Inside the butt case reinforcing ribs 30 (Fig. 1 0) are made which form a trap 31 for the box 32 with accessories. The box is spring-loaded by a spring 33 and rests against a turning cap 34 the lower lug 35 (Fig. 1 1 ) of which contacts the reciprocal lug 36 of the pusher 27. The side recess 37 (Fig. 9) on the outer surface of the butt is made in the form of a seat to house the night-sight leaf 38 fixed on the receiver 1 . In the rear part of the receiver a spring-loaded P -shaped retainer of the firing position of the butt is placed. The barrel 2 of the rifle (Fig. 1 2) comprises a cartridge chamber 40 with a supporting cone 41 and a rifled portion comprising a land conic taper 42, an additional conic area 43 and a cylinder portion 44. The length of the additional conic area is LL = (4...6) . (Ls + Lc), where Ls is the length of the supporting cone and Lc is the length of the conic taper of lands.
The rifled portion of the barrel is a profile with rifling and lands (Figs. 1 3, 1 4) . Transition between them comprises „ab" portion with the radius r , „bc" portion with the radius r2 and „cd" portion which is tangent n to radius r which is normal to surface S passing through the bore axis and the centre of the land; d is the land diameter and dR is the rifling diameter.
The automatic weapon operates in the following manner. To load the rifle it is necessary to pull the bolt support 1 0 backwards and release it abruptly. When the bolt support is pulled backward ist rear lug 1 1 cocks the hammer 20 which engages the sear notch of hand reloading 22 of the sear 21 of autosafety at a distance from the path of the bolt support which results in interference K between the hammer and the bolt support. When the firing trigger is pressed a shot takes place and powder gases actuate the bolt support via the piston 1 3 with the rod 1 2 and throw it back. During the backward movement the bolt support cocks the hammer again; the hammer turns and engages the sear notch 23 located at a distance from the path of the bolt support forming a clearance L between the hammer and the bolt support. Due to that, when the bolt support counterrecoils it passes over the hammer freely without touching it which provides for higher reliability of operation. When the hammer is cocked by the rear lug 1 1 it never contacts the firing pin 9 because a clearance „ π „ (Fig. 5) is provided due to specially selected length, and the firing pin does not push the cartridge from the cartridge case seat before the due time which eliminates loss of the cartridge.
When the bolt support 1 0 takes the front position its supporting platform 14 tapered under the angle β (Fig. 2) strikes the reciprocal tapered platform 1 6 of the lug 1 5 of the receiver. In this process the bolt support moves to the left and presses itself to the left rail 7 of the receiver. The piston 1 3 of the rod 1 2 of the bolt support enters the gas chamber 5 and taking up the clearance in the threaded joint with the bolt support turns at the proper angle compensating for errors in the gas chamber installation on the barrel and eliminating the skewness of the bolt support.
In the process of shooting the gas tube 6 fixed by the log 1 7 in the slot 1 8 and spring-loaded by the spring 1 9 of the rear-sight bed 4 does not make any inertial movements.
In the process of shooting the bullet cuts into the rifle lands at the initial moment; the additional conic area 43 promotes a smoother, more uniform cutting-in of the bullet reducing the specific pressure of the bullet on the lands. All that promotes smoother defomation of the bullet according to the form of the lands and increases the service life of the barrel. Availability of the curved transition surface from the lands to the rifling „abc" formed by radii ^ and r2 , and a linear section „cd" along the tangent allows for better filing the rifling by the bullet jacket thus preventing powder gas leakage and increasing stability of the bullet muzzle velocity. The plastic butt 3 can be folded from firing position to stowed position and vice versa. To put the butt from the firing position to the stowed position one should press the pusher 27 protruding from the hole of the buttplate 26; the pusher 27 moves in the cavity of the butt case 25 and by its lug 28 acutates the retainer 29 of the stowed position and releases the retainer form gear with the side wall of the buttplate 26. After that one should turn the butt around the axle 24 and put it into the firing position. To put the butt into the stowed position one should press the retainer of the firing position 39 and turning the butt around the axle 24 put it into the stowed position. As the result of this the retainer 29 of the stowed position engages the side edge of the buttplate 26 and by its tooth fixes the butt in the stowed position. When the butt is folded the night-sight leaf 38 is placed into the pocket 37 on the outer surface of the butt. To withdraw the box 32 with accessories one should energetically press the cap 34 of the buttplate 26 with a finger; the cap will turn and open the hole in the buttplate. Thanks to the spring 33 the box will withdraw from the hole formed by the reinforcing ribs 30 in the cavity of the butte case 25. The spring-loaded cap 34 will turn back to the initial position; to do this the lower lug 35 of the cap interacting with the lug 36 of the pusher 27 will move the pusher to the backward position.
The claimed invention completely solves the aimed technical problem: increase of reliability and operation characteristics, and it will be widely spread in new models of „Kalashnikov Assault Rifle" design manufactured at present (AK 1 01 , AK 102, AK 1 03, AK 104, AK 1 05 etc.).

Claims

Claims
Automatic weapon „Kalashnikov Assault Rifle" comprising a receiver (1 ), a trigger and firing mechanism including a hammer (20) and a sear of autosafety with automatic sear notch (21 ), a locking mechanism comprising a turning bolt (8) with a firing pin (9) placed in the bolt support (10) installed on rails (7) of the receiver (1 ) and having a rear lug ( 1 1 ) interacting with the hammer (20), a gas-escape mechanism with a gas tube (6) and a piston (1 3), the rod (1 2) of which is placed into the hole of the bolt support (1 0), a folding butt (3) with retainers of firing and stowed positions and a barrel with a rear-sight bed (4) comprising a cartridge chamber (40) and a rifled portion characterised in that the bolt support (1 0) is made in such a way that when in forward position it can contact the tapered surface (1 6) of the receiver ( 1 ); the rear lug ( 1 1 ) of the bolt support (1 0) is made in the length which prevents contact of the firing hammer (20) with the firing pin (9) when the bolt support ( 1 0) recoils; the rod ( 1 2) is placed in the bolt support in such a way that a limited angular displacement is allowed, and the gas tube (6) has a lug (1 7) which contacts the slot ( 1 8) of the rear-sight-bed (4).
The Automatic weapon according to Claim 1 characterised in that the rod ( 1 2) of the gas piston (1 3) is placed in the hole of the bolt support ( 1 0) with the help of threading with a clearance. The Automatic weapon according to Claim 1 characterised in that the sear (21 ) of the autosafety has a hand reloading sear notch in the form of a platform (22) on the sear (21 ) located at a distance from the path of the bolt support (1 0) assuring contact of the bolt support ( 1 0) with the firing hammer (20), and the platform of the automatic sear notch (23) of the sear (21 ) is made at a distance from the path of the bolt support (1 0) assuring a clearance between the bolt support ( 1 0) and the firing hammer (20) .
The Automatic weapon according to Claim 1 characterised in that inside the butt (3) the reinforcing ribs (30) form a trap (31 ) for the box (32) with accessories, the trap is covered by a spring-loaded turning cap (34) placed in such a way that it can interact with the pusher (27) of the retainer of stowed position.
The Automatic weapon according to Claim 1 characterised in that the gas tube (6) is spring-loaded with respect to the rear-sight bed (4) in the direction of the muzzle end.
The automatic weapon according to Claim 1 characterised in that in the rifled portion of the barrel (2) transition from the land to the rifling bottom is made in the form of two conjugating radii and a tangent located perpendicularly to the plane passing through the axis of the bore and the centre of the land.
The Automatic weapon according to Claim 1 characterised in that in the barrel between the conic taper of the lands (42) and the rifled portion there is an additional conic section with the length of LL = (4...6)L, where L is the sum of lengths of the supporting cone of the cartridge case and the conic taper of the lands (42).
PCT/IB1997/001597 1997-07-24 1997-12-24 Automatic weapon 'kalashnikov assault rifle' WO1999005467A1 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
ROA200000069A RO119094B1 (en) 1997-07-24 1997-12-24 Automatic weapon
PL97338250A PL185081B1 (en) 1997-07-24 1997-12-24 Automatic weapon - storming rifle of kalashnikov type
SI9720099A SI20224A (en) 1997-07-24 1997-12-24 Automatic weapon "kalashnikov assault rifle"
UA2000010367A UA45494C2 (en) 1997-07-24 1997-12-24 AUTOMATIC
AU52338/98A AU5233898A (en) 1997-07-24 1997-12-24 Automatic weapon "kalashnikov assault rifle"
HU0002969A HU222414B1 (en) 1997-07-24 1997-12-24 Automatic weapon
FI20000117A FI113802B (en) 1997-07-24 2000-01-20 Automatic weapons "Kalashnikov storm rifle"
BG104097A BG104097A (en) 1997-07-24 2000-01-21 Automatic weapon - kalashnikov assult rifle

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EAEA-97-0145-RU 1997-07-24
EA970145 1997-07-24

Publications (1)

Publication Number Publication Date
WO1999005467A1 true WO1999005467A1 (en) 1999-02-04

Family

ID=8161419

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB1997/001597 WO1999005467A1 (en) 1997-07-24 1997-12-24 Automatic weapon 'kalashnikov assault rifle'

Country Status (12)

Country Link
CN (1) CN1071449C (en)
AU (1) AU5233898A (en)
BG (1) BG104097A (en)
CZ (1) CZ293481B6 (en)
FI (1) FI113802B (en)
HU (1) HU222414B1 (en)
PL (1) PL185081B1 (en)
RO (1) RO119094B1 (en)
SI (1) SI20224A (en)
TR (1) TR200000215T2 (en)
UA (1) UA45494C2 (en)
WO (1) WO1999005467A1 (en)

Cited By (12)

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GB2346203A (en) * 1999-02-01 2000-08-02 Accuracy Int Ltd Hinge mechanism for firearms
US6817131B1 (en) * 2002-03-18 2004-11-16 Gottfried Prechtl Safety device for firearms with a firing pin lock
WO2010141428A1 (en) * 2009-06-05 2010-12-09 Ra Brands, L.L.C. Modular firearm stock system
WO2012034711A1 (en) 2010-09-18 2012-03-22 Michael Klesz Automatic firearm
CN103234384A (en) * 2013-03-27 2013-08-07 齐齐哈尔雄鹰警用器材有限公司 Shotgun novel trigger automatic safety structure
CN103738288A (en) * 2013-12-23 2014-04-23 罗碧玲 Gun type escaping hammer
US8844185B2 (en) 2012-08-27 2014-09-30 Ra Brands, L.L.C. Buttstock assembly
US9103615B2 (en) 2012-08-16 2015-08-11 Dimitri Mikroulis Universal AK-47 and variant bolt hold open follower
US9995549B1 (en) 2017-03-29 2018-06-12 David Marion Hamby Bolt hold open, fire selector and safety for kalashnikov style weapons
US11248871B2 (en) 2019-12-12 2022-02-15 Polaris Capital Corporation Firearm barrel trunnion
RU2778184C1 (en) * 2022-04-22 2022-08-15 Акционерное общество "Концерн "Калашников" Small arms
US11629924B2 (en) 2019-03-29 2023-04-18 Toma{hacek over (z)} Razpet Rifle

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MD3663C2 (en) * 2005-11-25 2009-02-28 Дорел ГОЛБАН Submachine gun
ITMI20071474A1 (en) * 2007-07-20 2009-01-21 Benelli Armi Spa CLOSING AND RESET UNIT WITH OSCILLATING SHUTTER AND ROTARY CLOSING HEAD, PARTICULARLY FOR WEAPONS WITH INERTIAL OPERATION USING THE KINETIC ENERGY OF RINCULO
RU2703371C1 (en) * 2018-08-21 2019-10-16 Василий Михайлович Покаляев Automatic firearm with inertia automation and recoil system in the form of constant force
CN111288841B (en) * 2019-12-31 2022-01-07 南京理工大学 Multifunctional pneumatic device of air-guide type automatic machine

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Cited By (15)

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GB2346203A (en) * 1999-02-01 2000-08-02 Accuracy Int Ltd Hinge mechanism for firearms
US6817131B1 (en) * 2002-03-18 2004-11-16 Gottfried Prechtl Safety device for firearms with a firing pin lock
WO2010141428A1 (en) * 2009-06-05 2010-12-09 Ra Brands, L.L.C. Modular firearm stock system
US9239203B2 (en) 2009-06-05 2016-01-19 Ra Brands, L.L.C. Modular firearm stock system
WO2012034711A1 (en) 2010-09-18 2012-03-22 Michael Klesz Automatic firearm
US9103615B2 (en) 2012-08-16 2015-08-11 Dimitri Mikroulis Universal AK-47 and variant bolt hold open follower
US9494375B2 (en) 2012-08-16 2016-11-15 Dimitri Mikroulis Universal AK-47 and variant bolt hold open follower
US8844185B2 (en) 2012-08-27 2014-09-30 Ra Brands, L.L.C. Buttstock assembly
US9410764B2 (en) 2012-08-27 2016-08-09 Ra Brands, L.L.C. Buttstock assembly
CN103234384A (en) * 2013-03-27 2013-08-07 齐齐哈尔雄鹰警用器材有限公司 Shotgun novel trigger automatic safety structure
CN103738288A (en) * 2013-12-23 2014-04-23 罗碧玲 Gun type escaping hammer
US9995549B1 (en) 2017-03-29 2018-06-12 David Marion Hamby Bolt hold open, fire selector and safety for kalashnikov style weapons
US11629924B2 (en) 2019-03-29 2023-04-18 Toma{hacek over (z)} Razpet Rifle
US11248871B2 (en) 2019-12-12 2022-02-15 Polaris Capital Corporation Firearm barrel trunnion
RU2778184C1 (en) * 2022-04-22 2022-08-15 Акционерное общество "Концерн "Калашников" Small arms

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CZ293481B6 (en) 2004-05-12
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PL185081B1 (en) 2003-02-28
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UA45494C2 (en) 2002-04-15
SI20224A (en) 2000-10-31
CZ2000209A3 (en) 2001-09-12
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CN1260038A (en) 2000-07-12
AU5233898A (en) 1999-02-16

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