WO2009087427A1 - Vhs assault rifle - Google Patents

Vhs assault rifle Download PDF

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Publication number
WO2009087427A1
WO2009087427A1 PCT/HR2009/000001 HR2009000001W WO2009087427A1 WO 2009087427 A1 WO2009087427 A1 WO 2009087427A1 HR 2009000001 W HR2009000001 W HR 2009000001W WO 2009087427 A1 WO2009087427 A1 WO 2009087427A1
Authority
WO
WIPO (PCT)
Prior art keywords
rifle
bolt
spring
bolt carrier
sight
Prior art date
Application number
PCT/HR2009/000001
Other languages
French (fr)
Inventor
Marko Vukovic
Original Assignee
Marko Vukovic
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 Marko Vukovic filed Critical Marko Vukovic
Publication of WO2009087427A1 publication Critical patent/WO2009087427A1/en

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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
    • F41A3/00—Breech mechanisms, e.g. locks
    • F41A3/64—Mounting of breech-blocks; Accessories for breech-blocks or breech-block mountings
    • F41A3/78—Bolt buffer or recuperator means
    • F41A3/82—Coil spring buffers
    • F41A3/84—Coil spring buffers mounted within the gun stock

Definitions

  • This invention relates to a rifle which offers a whole range of possibilities of attaching various accessories like a lamp, a bayonet, a grenade launcher, mounting a hand guard and all kinds of sights, Picatinny rails, a bipod, a mine thrower, a roto magazine and an adapter for all kinds of frames and, in accordance with the International Patent Classification (IPC), it is classified as F 41 C 7/00 shoulder-fired small arms.
  • IPC International Patent Classification
  • the problem this rifle solves is the problem of attaching all kinds of accessories an assault rifle can have such as a bayonet, a mine thrower, a grenade launcher, an observation device carrier, carriers for all kinds of sights, a bipod to be used when shooting from a prone position and a bomb thrower.
  • the problem of self-cleaning of the bolt chamber has been solved in the following way: when the bolt gets into the chamber it turns and, while turning, it pushes all the impurities out through the elongated opening for cartridge case ejection.
  • the existing rifles besides gunpowder soot, mud and other impurities get into the bolt chamber so after a very short period of time the locking of the bolt becomes impossible.
  • This rifle has a completely closed locking system and triggering mechanism so no impurities that interfere with the rifle's operation can get into it.
  • This rifle has a special mechanism placed within the reach of the index finger used for firing so it is possible to put on safety and take off safety without letting the grip go, to switch to automatic or single fire and to put down the bolt after changing a frame or a drum.
  • the rifle is equipped with various adapters which can be, using a lock system, quickly mounted enabling the use of any kind of a magazine.
  • the cooling of the recoil spring, protected from external influences in the guide, is achieved in the following way: the recoil spring retroactively seals air which, with the moving of the bolt acts like an air pump thus cooling the spring, the guide tube and other parts of the rifle. This is very important because the rifle body is made of polymer.
  • the strap buckles are designed as a closed ring so the rifle can be easily manipulated with in fight.
  • the rifle has been designed with the grip placed in front of the magazine and, because of this, it is considerably shorter at the same barrel length. Because of the rifle's design with the elements closed, the user has three parts when disassembling it.
  • Such a design makes the rifle 0.8 to 1 kg lighter than other rifles of the same class.
  • This rifle has the recoil buffer 113, the bolt 5, and the recoil buffer spring 115.
  • the parts of the firing mechanism, the trigger mechanism housing 43, the automatic fire lever 44, the hammer 45, the sear 46, the control levers 47, the rear fire lever 49 and the splinter 50 are made of polymer so they are of a different design and shape than those made of metal as they are in the existing rifles.
  • the rifle has the magazine carrier 127 suitable for various kinds of magazines which can be quickly changed by means of the magazine carrier catch 87. Its design enables the user to unlock the magazine carrier 127 by a move of the magazine carrier catch 87 and replace it with another magazine carrier 127 suitable for a different frame.
  • the bolt carrier 3 carries the bolt 5 supplied with the bolt pin 27 by which the bolt carrier tube 10 is separated from the rest of the rifle.
  • the bolt carrier 3 is separated from the bolt 5 by taking out the firing pin safety pin 26 and pulling out the firing pin 86. This enables the user to take out the breach bolt pin 28 and finally the bolt 5.
  • the breach bolt pin 28 unlocks the bolt 5 from the barrel carrier 1 and pushes out impurities through the cartridge case ejection opening and, at the same time, pulls the case from the barrel 2 and throws it out through the cartridge case ejection opening by means of the ejector 148.
  • the bolt carrier tube 10 is fixed by the tube plunger 11 and the pin 117 to the bolt carrier 3 and, on the other side, the bolt carrier tube 10 is fixed by the recoil spring rod 23 which also serves as the bolt carrier tube guide 23 and as the recoil spring base 149.
  • the front sight ramp and hood 7 with the gas regulator 150 by which the gas from the barrel 2 can be completely let out or be partially or completely closed in the area of the gas piston 12 and the front sight ramp and hood 7.
  • the front sight ramp and hood 7 has a special area for collecting soot in its first compression chamber.
  • the second compression chamber at the front of the front sight ramp and hood 7, there is another area for soot depositing and a hole for self-cleaning and decompression.
  • the hand guard 9 has to be inserted in the receiver 4 at the front side and, at the back side it is fixed by the polymer rifle body pin 22.
  • the fire regulating mechanism and the safety are of a unique design.
  • the fire selector 18 has been designed in its upper part as a ring of various thicknesses so, when turned towards the front fire lever 19, firing is impossible for two reasons. The first reason is that it is impossible to reach the front fire lever 19 by a finger and the other is that the fire selector ring 20 leans on the front fire lever 19 from the upper side with its thicker part so it can not be moved to fire. When moving the fire selector 18 to the left, the fire selector ring 20 slips to the thinner part of the fire selector ring 20 and the rifle is ready for automatic firing and the front fire lever 19 can be easily reached by a finger.
  • the fire selector 18 If the fire selector 18 is turned to the right of the grip 8, the fire selector ring 20 slips to its thinnest part enabling semi-automatic single firing.
  • the control handle 77 for lowering the bolt 5, is released by a downward move of a thumb through the control lever 47, the control 48 and the bolt 5 move to the locking position and a new round is carried in the barrel 2 from the magazine 58.
  • the cocking device 66 has been designed in a completely new way. In its lower part it has an opening the bolt carrier tube 10 gets into and, in this way, it is prepared for cocking when the cocking device 66 is pulled backwards. By turning the cocking lever 67 to the left or right for 90°, the cocking device 66 is released so it can be moved forward backward.
  • the cocking lever 67 always puts the cocking handle pusher 69, placed in the cocking lever 67, in the front position so it always blocks the cocking device 66 in the front position.
  • the receiver 4 On the upper side of the rifle there is the receiver 4 containing all the sights like the grenade-launcher sight - long 131 for great distances and the grenade-launcher sight base with all the pertaining parts for close range fire up to 200 m., the rear sight carrier 38 with the pertaining parts, the rear sight 64 and the night sight 120.
  • the receiver 4 connects the polymer rifle body 128 and the polymer rifle body 129, the hand guard 9 and the cocking device 66.
  • the firing mechanism is placed in the polymer rifle body 128 and 129 on the back side incorporated by the trigger mechanism housing 43.
  • the control 48 In the front side of the trigger mechanism housing 43 there is the control 48, control lever 47 and the hammer 45, next to it there is the control 48 and behind them there is the sear 46.
  • the rear fire lever 49 On the back side there is the rear fire lever 49, the splinter 50 with the accompanying pins 51, 53, 52 and the gas regulator safety 151.
  • Drawing 1 shows the complete rifle seen from the left side.
  • Drawing 2 shows the left and right cross-section view of the rifle with the marked details shown in the following drawings.
  • Drawing 3 shows Detail «E» front side of the rifle with the compensator 15, the compensator spring 16 and the grenade-launcher mine distance ring 17, the hand guard 9, the Picatinny rails 107, the front sight ramp and hood with the accompanying parts, the cocking lever 67 with all the pertaining parts, the recoil spring 97, the receiver 4 and the barrel 2.
  • Drawing 4 shows Detail «F» with the polymer rifle body 128 and 129, the grip 8, the magazine catch pusher 83, the magazine catch carrier spring 87, the barrel fixing pin 24, the stock screw 55, the control handle 77, the pin 110, the receiver cover 88, the control handle spring 101, the front fire lever 19, the trigger pin 29, the fire selector 18, the pin 57, the pin 56, the fire selector ring 20, the polymer rifle body pin 22.
  • the receiver 4 there is the position pin 25, the sight nut safety 130, the sight screw 74, the screw 73, the rear sight pin 40, the sight case spring 99, the rear sight carrier 38, the rear sight 41, the optic carrier 39, the rear sight carrier 42, the night sight housing 139, the grenade- launcher sight 122, the grenade-launcher sight regulator 123, the sight case 98, the grenade-launcher sight base 121, the night sight regulator spring 142, the night sight screw 135, the rivet 140, the sight spring 89, the pin 65, and the screw 34.
  • Drawing 5 shows Detail «G» with the magazine body 58, the magazine base 60, the magazine spring 105, the magazine catch spring 91, the magazine catch 76, the control pin 100, the screw 32, the pin 53, the hammer spring 95, the pin 52, the sear 46, the automatic fire lever spring 104, the pin 51, the trigger mechanism housing 43, the recoil buffer pin 114, the recoil buffer spring 115, the recoil buffer 113, the stock 85, the rubber stock butt 84, the pin 124, the stock pin 119, the square holder 143, the polymer rifle body nut 31, the hammer 45, the automatic fire lever 44, the control 48, the screw 30, the firing pin safety pin 26, the pin 117, the tube plunger 11, the bolt pin 27, the bolt 3, the bolt spring 96, the recoil spring rod 23, the recoil spring base 149, the bolt 5, the extractor 6, the firing pin 86, the extractor spring 92, the stock nut 54, the breach bolt pin 28, the magazine follower 59, the magazine catch
  • Drawing 6 shows Detail «H» with the rear fire lever 49, the trigger bar 81, the splinter 50, the control lever 47, the ejector 148, the dissembler pin 125, the dissembler pin 116, the receiver nut 33, the lever pin 79, the control bar 80, the trigger bar connecting lever 75, the lever 78, the control handle nut 118, the ejector spring 147, the pin 145, the pin 146, the magazine catch pin 144m the splinter spring 102 and the sear spring 103.
  • Drawing 7 shows Detail «1» with the trigger spring 141, the selector positioner 109, the selector spring 106, the gas regulator safety 126, the sight nut 63, the receiver nut 36, the cocking lever spring 94 and the night sight spring 134.
  • Drawing 5 shows the stock 85 which contains the recoil buffer 113 that turns round the recoil buffer pin 114.
  • the recoil buffer 113 moves round the turning point of the recoil buffer pin's 114 so the bolt carrier 3 loses kinetic energy and slows down its motion.
  • the bolt carrier 3 hits the recoil buffer spring 115 which stop the moving of the bolt carrier 3 completely.
  • the recoil buffer spring 115 when the bolt carrier 3 moves to the back position - compresses into a spirally corrugated conical hole slowing down its compression and opening and this attenuates the hit of the bolt carrier 3 and its start in the front position. In this way, the number of rounds fired per minute and the recoils of the rifle are reduced.
  • the trigger mechanism housing 43 contains all the parts needed for firing and the connection between the firing and loading a round and the magazine 58.
  • the hammer 45 moves round the pin 52 and the upper part of the hammer 45 lowers into a horizontal position and is caught by the sear 46.
  • the hammer 45 can move round the pin 52 which is of the same dimensions as all the other pins in this assembly.
  • the sear 46 catches the hammer 45 at the upper end and keeps it that way when the bolt carrier 3 goes back to the front position, the automatic fire lever 44 gets out of the grip ( a tentacle on the bolt carrier 3 pulls it out) of the tooth on the hammer 45 on the lower side establishing the conditions for single fire.
  • Single fire is achieved by pulling the rear fire lever 49, Drawing 6, forward around its turning point on the lower side and the pin 52.
  • the rear fire lever 49 has the splinter 50, Drawing 6, built into it that on the upper side has its turning point on the pin 51.
  • the splinter 50 pushes the sear 46 forward releasing the hammer 45 which then hits the firing pin 86, the splinter 50 slips downward enabling the sear 46 to move backward.
  • the hammer spring 95 returns the sear 46 back enabling it to catch the hammer 45 again.
  • the splinter 50 moves and catches the rear fire lever 46 again enabling single fire.
  • Drawing 4 shows the firing controls.
  • the selector ring 20 stays backward with its thickest segment pressing the nose on the upper side of the front fire lever 19 putting the rifle on safety while the index finger used for firing stays on the fire selector 18 which does not allow the pressure to be exerted on the front fire lever 19.
  • the front fire lever 19 is pulled by an object, there will be no firing since the nose on the upper side of the hammer 45 leans firmly on the selector ring 20 and the front fire lever 19 can not move.
  • the selector 18 is pushed to the left for about 150°, the selector ring 20 is moved to its medium thickness.
  • the cocking device 66 has the cocking lever 67 on its tentacle pin 72 which can be turned to the left or to the right depending on whether the shooter is a left-handed or a right-handed person so, when the cocking lever 67 is turned to the left, it protrudes at the angle of 90° and can be easily pulled towards the stock 85, Drawing 5. With it, the cocking device 66 is moved and it moves the bolt carrier tube 10 that compresses the recoil spring 97. When the rifle is closed, the cocking device 66 comes into the position from which the cocking lever 67 can return in the front position - it is pushed by the cocking handle pusher 69 by the cocking lever spring 94 into the front position.
  • the cocking lever is blocked with its diameter in the chamber of the receiver 4.
  • the bolt carrier tube 10 goes backward, gets out from the chamber of the cocking device 66 so the whole mechanism stays in this position during shooting.
  • the cocking device 66 has the cocking device tentacle 68 which can move up and down and which, if necessary, can be pushed by a thumb in the hole in the bolt carrier tube 10. In this way a solid connection is established between the cooking device 66 and the bolt carrier tube 10 so the rifle can be loaded silently or a round pushed into the chamber in case it gets stuck.
  • the thumb is moved away from the cocking device tentacle 68, it is automatically released by means of the tentacle spring 132.
  • Drawing 5 shows the magazine carrier 127 which is fixed with two semi-circular tentacles on the reverse side, Drawing 1, and at the front side it is fixed with the magazine carrier catch 87. It turns round the pin 82 pushed by the magazine catch pusher 83, Drawing 4, which is pressed by the magazine catch carrier spring 90, Drawing 4.
  • the magazine catch carrier 87 By moving the magazine catch carrier 87 around the turning point, the nose on the upper side of the magazine catch carrier 87 slips from under the tooth on the front side of the magazine carrier 127 and it turns aside around the two semicircular tentacles with the front side down and gets out from its chamber.
  • Any other magazine carrier 83, with the same listed elements, can be taken out and inserted in the same way. The hole for the chosen frame will be different.
  • Drawings 3 and 4 show the receiver 4 which connects the polymer rifle body 128 and 129 and the rear sight carrier 38 with all the parts. It also connects the grenade- launcher sight base 121 with all the parts, the grenade-launcher sight - long 131 with the pertaining parts, the front sight ramp and hood 7, the cocking device 66 with all the parts and the Picatinny rails 107 on which the desired equipment can be mounted very quickly.
  • the receiver 4 is also used for carrying and handling the rifle.
  • Drawing 3 shows the front sight ramp and hood 7 that has a bore hole on the lower side by which it holds to the barrel 2 and is fixed with the front sight and hood pins 21.
  • the bore hole houses the gas piston 12 which is a two-diameter. Its rear end is of a greater diameter and operates in the moment of unlocking - by its rear end it presses the gas piston spring support ring 14 and the spring with its mechanism opens the rifle and ejects the cartridge case.
  • the front part of the gas piston 12 which has a smaller diameter With the front part of the gas piston 12 which has a smaller diameter, at the move of several millimeters of the piston's 12 travel achieved by the impact of the gas on the surface of the piston's bigger diameter at the rear side, the surface on the front side of the gas piston 12 which has a smaller diameter opens up so the gas piston 12 operates with its complete surface and the pressure of the gas caught in it.
  • the small hole on the front sight ramp and hood 7 in front of the gas piston 12 is used to reduce the pressure and throwing soot out.
  • the gas piston 12 returns to the starting position by the gas piston spring 93.
  • the gas piston spring 93 throws out a part of soot through the small hole on the front part of the front sight ramp and hood 7 when the gas piston 12 returns to its starting position.
  • Drawings 4 and 6 show, among other things, the barrel carrier 1 which holds the barrel 2. It is also used to fasten all the metal parts on the polymer rifle body 128 and 129 with the stock screws 55.
  • on the upper side of the barrel carrier there is a bore hole for guiding the bolt carrier tube 10, Drawing 3.
  • a bore hole goes through the centerline for the recoil spring rod 23, Drawing 5.
  • the opening for the cartridge case ejection is elongated enabling a direct access to the cartridge rim. There are no locking teeth so a case is ejected freely as soon as its gets out from the barrel 2 and the impurities collected on the teeth and ring are thrown out.
  • Drawings 3 and 5 show the bolt carrier tube 10 which is closed at the front and has the tube plunger 11 at the rear end fastened through the bolt carrier tube 10 with the pin 117 and, in the bolt carrier tube 10, it is fastened with the bolt pin 27 forming a firm connection of the bolt carrier tube 10 and the bolt carrier 3.
  • a longitudinal groove has been made on both sides of the bolt carrier tube 10 so it is guided with the recoil spring rod 23.
  • the recoil spring base 149 leans on the recoil spring rod 23.
  • the recoil spring 97 is drawn on the recoil spring base 149 and is placed in the bolt carrier tube 10 so that, on the front side, it pushes the bolt carrier tube 10 forward and with it the whole mechanism connected to it.
  • the gas pushes the bolt barrier tube 10 backward through the front sight ramp and hood mechanism 7 thus compressing the recoil spring 97 and changing the volume of the space where the spring is placed.
  • the air caught up within the recoil spring 97 rapidly pushes the recoil spring base 149 to the passage made at the front side from the top of the bolt carrier tube 10 thus cooling the whole recoil spring 97 and the area around it as well as the closed space around the barrel 2.
  • the direction of the bolt carrier tube 10 is changed, it draws in fresh air in a reverse way thus cooling the whole area.
  • Drawings 4 and 5 show the polymer rifle body 128 and 129 which are connected with the stock screws 55 and the stock nuts 54, the screws 82, the receiver nuts 34, the screws 32 and 30.
  • the polymer rifle body 128 and the polymer rifle body 129 contain the vital parts of the rifle.
  • the stock 85 is joined with the square holder 143, the stock pin 119, the pin 124 and the rifle butt pin 22.
  • VHS assault rifle is most suitable for close combats- up to 300 m- from all the positions - standing, kneeling and prone position. In the standing position, the use of combined straps is recommended. Then the rifle can be carried as a rucksack on the back, over the shoulder and on the chest. From the chest position it can be automatically moved on the shoulder with a blow on the front side of the strap. Thus, user's both hands are free and he can run with no difficulty. At the same time, he can instantly take the grip and put the rifle in the firing position, either from the hip or from the normal shooting position.
  • the rifle In the kneeling position, due to various strap positions combination, the rifle can be attached in such a way that the rifle does not drag along the ground enabling the user to act freely.
  • the use of the bipod mounted on the Picat ⁇ nny rails on the lower side of the rifle is recommended.
  • a soldier can shoot if needed and, if it is not needed, he can leave the rifle pointing at the target on the bipod and perform other tasks.
  • a soldier can quickly mount the grenade
  • a soldier can use the sights and mine throwers the rifle is equipped with. In such a case, he can fire mines pressing the stock on a proper surface.
  • a soldier can mount a bayonet for close combat and, at the same time, use small arms ammunition, the grenade launcher and the bayonet.
  • the rifle is equipped with standard and roto frames containing an increased number of rounds so, when changing a frame, the rifle does not need to be moved away from the target direction and a new round can be easily loaded from the next frame. Since the rifle is short and has the grip in its centre of gravity, a soldier can easily shoot with one hand from the hip and aim and, because of its shortness and the way of holding, the rifle can be used in motorized units and, because of its little weight, it is used in air force units.

Abstract

VHS assault rifle has been designed for a fast mounting of all kinds of sights and, besides the use of small arms ammunition, it can be easily prepared for throwing mines and bombs and, at the same time, it can have a bayonet mounted on it. In this rifle, the cocking lever is placed on the upper side of the rifle and automatically closes in the forward position and stays still while the bolt moves forward backward. The problem of self-cleaning of the bolt chamber has been solved in such a way that, when the bolt gets into the chamber, it turns and, while turning, it pushes all the impurities out through the elongated opening for the cartridge case ejection. The fire selector is placed within the reach of the index finger used for firing and, without letting the grip go, it is possible to put the rifle on safety with the index finger, switch it to the automatic or single fire position and lower the bolt after changing a frame or a drum. The rifle is equipped with various adapters which can be mounted very quickly with a lock system thus enabling the use of any type of a magazine. The cooling of the recoil spring, protected from external influences in the guide, is achieved in such a way that the recoil spring retroactively seals air which, with the moving of the bolt acts like an air pump thus cooling the spring, the guide tube and other parts of the rifle. The rifle has been designed with the grip placed in front of the magazine and, because of this, it is approximately 300mm shorter with the same barrel length than other rifles of the same class. Such a design makes the rifle 0.8 to 1 kg lighter than other rifles of the same class.

Description

VHS ASSAULT RIFLE
1. TECHNICAL FIELD TO WHICH THE INVENTION RELATES
This invention relates to a rifle which offers a whole range of possibilities of attaching various accessories like a lamp, a bayonet, a grenade launcher, mounting a hand guard and all kinds of sights, Picatinny rails, a bipod, a mine thrower, a roto magazine and an adapter for all kinds of frames and, in accordance with the International Patent Classification (IPC), it is classified as F 41 C 7/00 shoulder-fired small arms.
2. TECHNICAL PROBLEM
The problem this rifle solves is the problem of attaching all kinds of accessories an assault rifle can have such as a bayonet, a mine thrower, a grenade launcher, an observation device carrier, carriers for all kinds of sights, a bipod to be used when shooting from a prone position and a bomb thrower.
All the existing rifles have the cocking lever on the upper side or on the left or right side which moves together with the bolt. When shooting, a shooter often hurts himself on the lever which moves with the bolt. In this rifle, the cocking lever is placed on the upper side, it closes automatically in the forward position and stays in place during shooting while the bolt moves forward backward.
The problem of self-cleaning of the bolt chamber has been solved in the following way: when the bolt gets into the chamber it turns and, while turning, it pushes all the impurities out through the elongated opening for cartridge case ejection. In the existing rifles, besides gunpowder soot, mud and other impurities get into the bolt chamber so after a very short period of time the locking of the bolt becomes impossible. This rifle has a completely closed locking system and triggering mechanism so no impurities that interfere with the rifle's operation can get into it.
This rifle has a special mechanism placed within the reach of the index finger used for firing so it is possible to put on safety and take off safety without letting the grip go, to switch to automatic or single fire and to put down the bolt after changing a frame or a drum. The rifle is equipped with various adapters which can be, using a lock system, quickly mounted enabling the use of any kind of a magazine.
The cooling of the recoil spring, protected from external influences in the guide, is achieved in the following way: the recoil spring retroactively seals air which, with the moving of the bolt acts like an air pump thus cooling the spring, the guide tube and other parts of the rifle. This is very important because the rifle body is made of polymer.
The strap buckles are designed as a closed ring so the rifle can be easily manipulated with in fight.
The rifle has been designed with the grip placed in front of the magazine and, because of this, it is considerably shorter at the same barrel length. Because of the rifle's design with the elements closed, the user has three parts when disassembling it.
Such a design makes the rifle 0.8 to 1 kg lighter than other rifles of the same class.
3. STATE OF THE ART
In the existing rifles, a part of the problems described in 2 is solved in a considerably more complicated way and, because of this, they have more metal parts that make them heavier. They have metal cases which incorporate the bolt carrier tube and the bolt, metal mechanisms for triggering and firing regulation and metal safety and locking mechanisms which increase the weight considerably. The world-famous rifles do not offer the possibility of mounting additional accessories such a grenade launcher, a mine and bomb thrower and do not offer the possibility of mounting all kinds of sights. In the existing rifles, the mounting of a bayonet is not possible.
4. ESSENCE OF INVENTION
This rifle has the recoil buffer 113, the bolt 5, and the recoil buffer spring 115. The parts of the firing mechanism, the trigger mechanism housing 43, the automatic fire lever 44, the hammer 45, the sear 46, the control levers 47, the rear fire lever 49 and the splinter 50 are made of polymer so they are of a different design and shape than those made of metal as they are in the existing rifles.
The rifle has the magazine carrier 127 suitable for various kinds of magazines which can be quickly changed by means of the magazine carrier catch 87. Its design enables the user to unlock the magazine carrier 127 by a move of the magazine carrier catch 87 and replace it with another magazine carrier 127 suitable for a different frame.
The bolt carrier 3 carries the bolt 5 supplied with the bolt pin 27 by which the bolt carrier tube 10 is separated from the rest of the rifle.
The bolt carrier 3 is separated from the bolt 5 by taking out the firing pin safety pin 26 and pulling out the firing pin 86. This enables the user to take out the breach bolt pin 28 and finally the bolt 5.
By moving the bolt carrier 3 backwards, the breach bolt pin 28 unlocks the bolt 5 from the barrel carrier 1 and pushes out impurities through the cartridge case ejection opening and, at the same time, pulls the case from the barrel 2 and throws it out through the cartridge case ejection opening by means of the ejector 148. The bolt carrier tube 10 is fixed by the tube plunger 11 and the pin 117 to the bolt carrier 3 and, on the other side, the bolt carrier tube 10 is fixed by the recoil spring rod 23 which also serves as the bolt carrier tube guide 23 and as the recoil spring base 149.
When moving the bolt carrier 3, and with it all the connected parts are moved, the recoil spring 97 is pulled and compressed and the air between the spring 97 and the bolt carrier tube 10 is pushed through the spring and the hole on front side of the bolt carrier tube 10 thus cooling rapidly the other parts of the rifle.
With the opening and closing of the bolt carrier 3, fresh air is sucked in and blown out thus cooling intensively the other parts of the rifle.
At the front of the barrel 2 there is the front sight ramp and hood 7 with the gas regulator 150 by which the gas from the barrel 2 can be completely let out or be partially or completely closed in the area of the gas piston 12 and the front sight ramp and hood 7. The front sight ramp and hood 7 has a special area for collecting soot in its first compression chamber. In the second compression chamber, at the front of the front sight ramp and hood 7, there is another area for soot depositing and a hole for self-cleaning and decompression. To fix it, the hand guard 9 has to be inserted in the receiver 4 at the front side and, at the back side it is fixed by the polymer rifle body pin 22.
The same method is used to fix the mine thrower to the rifle.
The fire regulating mechanism and the safety are of a unique design. The fire selector 18 has been designed in its upper part as a ring of various thicknesses so, when turned towards the front fire lever 19, firing is impossible for two reasons. The first reason is that it is impossible to reach the front fire lever 19 by a finger and the other is that the fire selector ring 20 leans on the front fire lever 19 from the upper side with its thicker part so it can not be moved to fire. When moving the fire selector 18 to the left, the fire selector ring 20 slips to the thinner part of the fire selector ring 20 and the rifle is ready for automatic firing and the front fire lever 19 can be easily reached by a finger. If the fire selector 18 is turned to the right of the grip 8, the fire selector ring 20 slips to its thinnest part enabling semi-automatic single firing. The control handle 77 for lowering the bolt 5, is released by a downward move of a thumb through the control lever 47, the control 48 and the bolt 5 move to the locking position and a new round is carried in the barrel 2 from the magazine 58. The cocking device 66 has been designed in a completely new way. In its lower part it has an opening the bolt carrier tube 10 gets into and, in this way, it is prepared for cocking when the cocking device 66 is pulled backwards. By turning the cocking lever 67 to the left or right for 90°, the cocking device 66 is released so it can be moved forward backward. The cocking lever 67 always puts the cocking handle pusher 69, placed in the cocking lever 67, in the front position so it always blocks the cocking device 66 in the front position. On the back side of the cocking device 66 there is the tentacle pin 72 that can block the cocking device 66 and the bolt carrier tube 10. In this way a round can be loaded silently or pressed in the chamber in case it is oversized.
On the upper side of the rifle there is the receiver 4 containing all the sights like the grenade-launcher sight - long 131 for great distances and the grenade-launcher sight base with all the pertaining parts for close range fire up to 200 m., the rear sight carrier 38 with the pertaining parts, the rear sight 64 and the night sight 120. The receiver 4 connects the polymer rifle body 128 and the polymer rifle body 129, the hand guard 9 and the cocking device 66.
The firing mechanism is placed in the polymer rifle body 128 and 129 on the back side incorporated by the trigger mechanism housing 43. In the front side of the trigger mechanism housing 43 there is the control 48, control lever 47 and the hammer 45, next to it there is the control 48 and behind them there is the sear 46. On the back side there is the rear fire lever 49, the splinter 50 with the accompanying pins 51, 53, 52 and the gas regulator safety 151.
5. SHORT DESCRIPTION OF DRAWINGS
Drawing 1 shows the complete rifle seen from the left side. Drawing 2 shows the left and right cross-section view of the rifle with the marked details shown in the following drawings.
Drawing 3 shows Detail «E» front side of the rifle with the compensator 15, the compensator spring 16 and the grenade-launcher mine distance ring 17, the hand guard 9, the Picatinny rails 107, the front sight ramp and hood with the accompanying parts, the cocking lever 67 with all the pertaining parts, the recoil spring 97, the receiver 4 and the barrel 2. Drawing 4 shows Detail «F» with the polymer rifle body 128 and 129, the grip 8, the magazine catch pusher 83, the magazine catch carrier spring 87, the barrel fixing pin 24, the stock screw 55, the control handle 77, the pin 110, the receiver cover 88, the control handle spring 101, the front fire lever 19, the trigger pin 29, the fire selector 18, the pin 57, the pin 56, the fire selector ring 20, the polymer rifle body pin 22. On the receiver 4 there is the position pin 25, the sight nut safety 130, the sight screw 74, the screw 73, the rear sight pin 40, the sight case spring 99, the rear sight carrier 38, the rear sight 41, the optic carrier 39, the rear sight carrier 42, the night sight housing 139, the grenade- launcher sight 122, the grenade-launcher sight regulator 123, the sight case 98, the grenade-launcher sight base 121, the night sight regulator spring 142, the night sight screw 135, the rivet 140, the sight spring 89, the pin 65, and the screw 34.
Drawing 5 shows Detail «G» with the magazine body 58, the magazine base 60, the magazine spring 105, the magazine catch spring 91, the magazine catch 76, the control pin 100, the screw 32, the pin 53, the hammer spring 95, the pin 52, the sear 46, the automatic fire lever spring 104, the pin 51, the trigger mechanism housing 43, the recoil buffer pin 114, the recoil buffer spring 115, the recoil buffer 113, the stock 85, the rubber stock butt 84, the pin 124, the stock pin 119, the square holder 143, the polymer rifle body nut 31, the hammer 45, the automatic fire lever 44, the control 48, the screw 30, the firing pin safety pin 26, the pin 117, the tube plunger 11, the bolt pin 27, the bolt 3, the bolt spring 96, the recoil spring rod 23, the recoil spring base 149, the bolt 5, the extractor 6, the firing pin 86, the extractor spring 92, the stock nut 54, the breach bolt pin 28, the magazine follower 59, the magazine catch carrier 87, the magazine carrier 127 and the screw 82. Drawing 6 shows Detail «H» with the rear fire lever 49, the trigger bar 81, the splinter 50, the control lever 47, the ejector 148, the dissembler pin 125, the dissembler pin 116, the receiver nut 33, the lever pin 79, the control bar 80, the trigger bar connecting lever 75, the lever 78, the control handle nut 118, the ejector spring 147, the pin 145, the pin 146, the magazine catch pin 144m the splinter spring 102 and the sear spring 103.
Drawing 7 shows Detail «1» with the trigger spring 141, the selector positioner 109, the selector spring 106, the gas regulator safety 126, the sight nut 63, the receiver nut 36, the cocking lever spring 94 and the night sight spring 134.
The list of all the used markings and symbols is as follows:
1. Barrel carrier
2. Barrel
3. Bolt carrier
4. Receiver
5. Bolt
6. Extractor
7. Front sight ramp and hood
8. Grip
9. Hand guard
10. Bolt carrier tube
11. Tube plunger
12. Gas piston
13. Gas piston rod
14. Gas piston spring support ring
15. Compensator
16. Compensator spring
17. Grenade-launcher mine distance ring
18. Fire selector
19. Front fire lever
20. Fire selector ring
21. Front sight ramp and hood pin
22. Polymer rifle body pin 23. Recoil spring rod
24. Barrel fixing pin
25. Position pin
26. Firing pin safety pin
27. Bolt pin
28. Breach bolt pin
29. Trigger pin
30. Screw
31. Polymer rifle body nut
32. Screw
33. Receiver nut
34. Screw
35. Screw
36. Receiver nut
37. Receiver case
38. Rear sight carrier
39. Optic carrier
40. Rear sight pin
41. Rear sight
42. Rear sight carrier
43. Trigger mechanism housing
44. Automatic fire lever
45. Hammer
46. Sear
47. Control lever
48. Control
49. Rear fire lever
50. Splinter
51. Small pin
52. Pin
53. Pin
54. Stock nut
55. Stock screw 56. Pin
57. Pin
58. Magazine body
59. Magazine follower
60. Magazine base
61. Screw
62. Sight screw
63. Sight nut
64. Rear sight
65. Pin
66. Cocking device
67. Cocking lever
68. Cocking device tentacle
69. Cocking handle pusher
70. Tentacle rejecter
71. Screw
72. Tentacle pin
73. Screw
74. Sight screw
75. Trigger bar connecting lever
76. Magazine catch
77. Control handle
78. Lever
79. Lever pin
80. Control bar
81. Trigger bar
82. Screw
83. Magazine catch carrier pusher
84. Rubber stock butt
85. Stock
86. Firing pin
87. Magazine catch carrier
88. Receiver cover 89. Sight spring
90. Magazine catch carrier spring
91. Magazine catch spring
92. Extractor spring
93. Gas piston spring
94. Cocking lever spring
95. Hammer spring
96. Bolt spring
97. Recoil spring
98. Sight case
99. Sight case spring
100. Control spring
101. Control handle spring
102. Splinter spring
103. Sear spring
104. Automatic fire lever spring
105. Magazine spring
106. Selector spring
107. Picatinny rails
108. Grenade-launcher mine distance ring spring
109. Selector positioner
110. Pin
111. Screw
112. Picatinny rails nut
113. Recoil buffer
114. Recoil buffer pin
115. Recoil buffer spring
116. Dissembler pin
117. Pin
118. Control handle nut
119. Stock pin
120. Night sight 121. Grenade-launcher sight base
122. Grenade-launcher sight
123. Grenade-launcher sight regulator
124. Pin
125. Dissembler pin
126. Gas regulator safety
127. Magazine carrier
128. Polymer rifle body - right
129. Polymer rifle body - left
130. Sight nut safety
131. Grenade-launcher sight - long
132. Tentacle spring
133. Grenade-launcher sight spring
134. Night sight spring
135. Night sight regulator screw
136. Grenade-launcher sight nut
137. Grenade-launcher sight screw
138. Washer
139. Night sight housing
140. Rivet
141. Trigger spring
142. Night sight regulator spring
143. Square holder
144. Magazine catch pin
145. Pin
146. Pin
147. Ejector spring
148. Ejector
149. Recoil spring base
150. Gas regulator
151. Gas regulator position safety 6. DETAILED DESCRIPTION OF CARRYING OUT INVENTION
Drawing 5 shows the stock 85 which contains the recoil buffer 113 that turns round the recoil buffer pin 114. When the bolt carrier 3 is hit, the recoil buffer 113 moves round the turning point of the recoil buffer pin's 114 so the bolt carrier 3 loses kinetic energy and slows down its motion. In addition, it hits the recoil buffer spring 115 which stop the moving of the bolt carrier 3 completely. When the bolt carrier 3 returns to the front position pushed by the recoil spring 97, Drawing 3, and the recoil buffer spring 115 at the beginning of the return of the bolt carrier 3 initiates the return of the bolt carrier 3 , the recoil buffer spring 115 - when the bolt carrier 3 moves to the back position - compresses into a spirally corrugated conical hole slowing down its compression and opening and this attenuates the hit of the bolt carrier 3 and its start in the front position. In this way, the number of rounds fired per minute and the recoils of the rifle are reduced.
The trigger mechanism housing 43 contains all the parts needed for firing and the connection between the firing and loading a round and the magazine 58. When the bolt carrier 3 moves backwards, the hammer 45 moves round the pin 52 and the upper part of the hammer 45 lowers into a horizontal position and is caught by the sear 46. The hammer 45 can move round the pin 52 which is of the same dimensions as all the other pins in this assembly. The sear 46 catches the hammer 45 at the upper end and keeps it that way when the bolt carrier 3 goes back to the front position, the automatic fire lever 44 gets out of the grip ( a tentacle on the bolt carrier 3 pulls it out) of the tooth on the hammer 45 on the lower side establishing the conditions for single fire. Single fire is achieved by pulling the rear fire lever 49, Drawing 6, forward around its turning point on the lower side and the pin 52. The rear fire lever 49 has the splinter 50, Drawing 6, built into it that on the upper side has its turning point on the pin 51. By moving the rear fire lever for 15° the splinter 50 pushes the sear 46 forward releasing the hammer 45 which then hits the firing pin 86, the splinter 50 slips downward enabling the sear 46 to move backward. The hammer spring 95 returns the sear 46 back enabling it to catch the hammer 45 again. When the rear fire lever 49 returns, the splinter 50 moves and catches the rear fire lever 46 again enabling single fire. When automatic fire is needed, the procedure is the same, but then the rear fire lever 49 is kept in the forward position and the splinter 50 is not allowed to slip because of its move of only 10° so the sear 46 keeps staying forward and the hammer 45 with its tooth on the upper side is always free. The tooth on the front side of the hammer 45 remains in function kept by the automatic fire lever 44 until the bolt carrier 3 with its tentacle on the back side pulls automatic fire lever 44 releasing the hammer 45 and the whole process is repeated. Such a design has made it possible to place the grip 8, Drawing 4, in front of the magazine 58, i.e. a bulppap version and a simple design of the fire selector 18 and safety, Drawing 4. Because of all the abovementioned features, it was possible to place the grip 8, Drawing 4, in the centre of the rifle's gravity and make the total length of the rifle 300 mm shorter with the same barrel length. With the grip 8, Drawing 4, in the centre of the rifle's gravity it is possible to shoot with one hand and the rifle is remarkably easier to handle.
Drawing 4 shows the firing controls. When the front fire lever 19 is in a vertical position and the fire selector 18 leans with its tail part on the front fire lever 19, then the selector ring 20 stays backward with its thickest segment pressing the nose on the upper side of the front fire lever 19 putting the rifle on safety while the index finger used for firing stays on the fire selector 18 which does not allow the pressure to be exerted on the front fire lever 19. In case the front fire lever 19 is pulled by an object, there will be no firing since the nose on the upper side of the hammer 45 leans firmly on the selector ring 20 and the front fire lever 19 can not move. When the fire selector 18 is pushed to the left for about 150°, the selector ring 20 is moved to its medium thickness. It is fixed by the selector positioner 109, Drawing 9, which 'jumps' into the hole in the polymer rifle body 128, the rifle is adjusted to automatic fire. When the fire selector 18 is pushed to the right for about 150°, and the selector positioner 109, Drawing 7, 'jumps' into the hole in the polymer rifle body 129, then the selector ring 20 is at its smallest thickness. The rifle is adjusted to single fire. When the selector ring 20 is in this position a maximum travel of the front fire lever 19 is achieved and with this, through the trigger bar connecting lever 75, Drawing 6, it pulls the rear fire lever 46, Drawing 5. Drawing 3 shows the cocking mechanism. The cocking device 66 has the cocking lever 67 on its tentacle pin 72 which can be turned to the left or to the right depending on whether the shooter is a left-handed or a right-handed person so, when the cocking lever 67 is turned to the left, it protrudes at the angle of 90° and can be easily pulled towards the stock 85, Drawing 5. With it, the cocking device 66 is moved and it moves the bolt carrier tube 10 that compresses the recoil spring 97. When the rifle is closed, the cocking device 66 comes into the position from which the cocking lever 67 can return in the front position - it is pushed by the cocking handle pusher 69 by the cocking lever spring 94 into the front position. With this procedure, the cocking lever is blocked with its diameter in the chamber of the receiver 4. When a round is fired, the bolt carrier tube 10 goes backward, gets out from the chamber of the cocking device 66 so the whole mechanism stays in this position during shooting. The cocking device 66 has the cocking device tentacle 68 which can move up and down and which, if necessary, can be pushed by a thumb in the hole in the bolt carrier tube 10. In this way a solid connection is established between the cooking device 66 and the bolt carrier tube 10 so the rifle can be loaded silently or a round pushed into the chamber in case it gets stuck. As soon as the thumb is moved away from the cocking device tentacle 68, it is automatically released by means of the tentacle spring 132.
Drawing 5 shows the magazine carrier 127 which is fixed with two semi-circular tentacles on the reverse side, Drawing 1, and at the front side it is fixed with the magazine carrier catch 87. It turns round the pin 82 pushed by the magazine catch pusher 83, Drawing 4, which is pressed by the magazine catch carrier spring 90, Drawing 4. By moving the magazine catch carrier 87 around the turning point, the nose on the upper side of the magazine catch carrier 87 slips from under the tooth on the front side of the magazine carrier 127 and it turns aside around the two semicircular tentacles with the front side down and gets out from its chamber. Any other magazine carrier 83, with the same listed elements, can be taken out and inserted in the same way. The hole for the chosen frame will be different. Every magazine catch contains the magazine catch 76 adjusted to every type of a frame chosen. Drawings 3 and 4 show the receiver 4 which connects the polymer rifle body 128 and 129 and the rear sight carrier 38 with all the parts. It also connects the grenade- launcher sight base 121 with all the parts, the grenade-launcher sight - long 131 with the pertaining parts, the front sight ramp and hood 7, the cocking device 66 with all the parts and the Picatinny rails 107 on which the desired equipment can be mounted very quickly. The receiver 4 is also used for carrying and handling the rifle. Drawing 3 shows the front sight ramp and hood 7 that has a bore hole on the lower side by which it holds to the barrel 2 and is fixed with the front sight and hood pins 21. In the middle of it there is a bore hole that serves as a cylinder and fills with gas through the bore hole on the barrel 2 and through the gas regulator 150. The bore hole houses the gas piston 12 which is a two-diameter. Its rear end is of a greater diameter and operates in the moment of unlocking - by its rear end it presses the gas piston spring support ring 14 and the spring with its mechanism opens the rifle and ejects the cartridge case. With the front part of the gas piston 12 which has a smaller diameter, at the move of several millimeters of the piston's 12 travel achieved by the impact of the gas on the surface of the piston's bigger diameter at the rear side, the surface on the front side of the gas piston 12 which has a smaller diameter opens up so the gas piston 12 operates with its complete surface and the pressure of the gas caught in it. The small hole on the front sight ramp and hood 7 in front of the gas piston 12 is used to reduce the pressure and throwing soot out. The gas piston 12 returns to the starting position by the gas piston spring 93. At the place where the gas enters the cylinder of the front sight ramp and hood 7 there is a widening larger than the gas piston's 12 diameter that serves for temporary soot disposal deposited during the gas impact on the smaller diameter of the gas piston 12, and the gap between the front part of the gas piston 12 and the front sight ramp and hood 7 is used for the soot disposal deposited during the gas impact on the bigger diameter. The gas piston spring 93 throws out a part of soot through the small hole on the front part of the front sight ramp and hood 7 when the gas piston 12 returns to its starting position. On the upper side of the front sight ramp and hood 7 there is a carrier with the mounted night sight 120, the rear sight 64 and the screw 35 used for fastening the front part of the receiver 4. Drawings 4 and 6 show, among other things, the barrel carrier 1 which holds the barrel 2. It is also used to fasten all the metal parts on the polymer rifle body 128 and 129 with the stock screws 55. on the upper side of the barrel carrier there is a bore hole for guiding the bolt carrier tube 10, Drawing 3. At the same place, crosswise to the bore hole, a bore hole goes through the centerline for the recoil spring rod 23, Drawing 5. The opening for the cartridge case ejection is elongated enabling a direct access to the cartridge rim. There are no locking teeth so a case is ejected freely as soon as its gets out from the barrel 2 and the impurities collected on the teeth and ring are thrown out. It is achieved in the following way: when the bolt 5 turns, the tooth on the bolt 5 pushes the impurities to the left or right and, when the case is discharged from its chamber, the remaining gas pressure blows out the impurities through the elongated opening for the cartridge case ejection.
Through the openings on the barrel carrier 1 from the outside to the polymer rifle body 128 and 129, the recoil spring base 149, Drawing 5, when opening and closing the bolt 5, pumps or draws in fresh air thus cooling the whole barrel carrier 1 which is of utmost importance with polymer stocks.
Drawings 3 and 5 show the bolt carrier tube 10 which is closed at the front and has the tube plunger 11 at the rear end fastened through the bolt carrier tube 10 with the pin 117 and, in the bolt carrier tube 10, it is fastened with the bolt pin 27 forming a firm connection of the bolt carrier tube 10 and the bolt carrier 3. A longitudinal groove has been made on both sides of the bolt carrier tube 10 so it is guided with the recoil spring rod 23. The recoil spring base 149 leans on the recoil spring rod 23. The recoil spring 97 is drawn on the recoil spring base 149 and is placed in the bolt carrier tube 10 so that, on the front side, it pushes the bolt carrier tube 10 forward and with it the whole mechanism connected to it. At firing, the gas pushes the bolt barrier tube 10 backward through the front sight ramp and hood mechanism 7 thus compressing the recoil spring 97 and changing the volume of the space where the spring is placed. The air caught up within the recoil spring 97 rapidly pushes the recoil spring base 149 to the passage made at the front side from the top of the bolt carrier tube 10 thus cooling the whole recoil spring 97 and the area around it as well as the closed space around the barrel 2. When the direction of the bolt carrier tube 10 is changed, it draws in fresh air in a reverse way thus cooling the whole area. When the bolt carrier tube 10 moves backward, the volume of the area at the back side of the bolt carrier tube 10, behind the recoil spring rod 23 increases and, with this, the drawing of fresh air round the barrel carrier 1 so the cooling is even more effective. In the reverse process, air is blown through the same channels out thus cooling the interior of the rifle.
Drawings 4 and 5 show the polymer rifle body 128 and 129 which are connected with the stock screws 55 and the stock nuts 54, the screws 82, the receiver nuts 34, the screws 32 and 30. The polymer rifle body 128 and the polymer rifle body 129 contain the vital parts of the rifle. The stock 85 is joined with the square holder 143, the stock pin 119, the pin 124 and the rifle butt pin 22.
7. APPLICATION OF INVENTION
VHS assault rifle is most suitable for close combats- up to 300 m- from all the positions - standing, kneeling and prone position. In the standing position, the use of combined straps is recommended. Then the rifle can be carried as a rucksack on the back, over the shoulder and on the chest. From the chest position it can be automatically moved on the shoulder with a blow on the front side of the strap. Thus, user's both hands are free and he can run with no difficulty. At the same time, he can instantly take the grip and put the rifle in the firing position, either from the hip or from the normal shooting position.
In the kneeling position, due to various strap positions combination, the rifle can be attached in such a way that the rifle does not drag along the ground enabling the user to act freely.
When in the prone position, the use of the bipod mounted on the Picatϊnny rails on the lower side of the rifle is recommended. Thus, a soldier can shoot if needed and, if it is not needed, he can leave the rifle pointing at the target on the bipod and perform other tasks. In case of city fights, a soldier can quickly mount the grenade
launcher and use 40 mm grenades along with the small arms ammunition. When fighting over obstacles, a soldier can use the sights and mine throwers the rifle is equipped with. In such a case, he can fire mines pressing the stock on a proper surface. In special cases which require an assault and defense, a soldier can mount a bayonet for close combat and, at the same time, use small arms ammunition, the grenade launcher and the bayonet.
The rifle is equipped with standard and roto frames containing an increased number of rounds so, when changing a frame, the rifle does not need to be moved away from the target direction and a new round can be easily loaded from the next frame. Since the rifle is short and has the grip in its centre of gravity, a soldier can easily shoot with one hand from the hip and aim and, because of its shortness and the way of holding, the rifle can be used in motorized units and, because of its little weight, it is used in air force units.

Claims

PATENT CLAIM
1. VHS assault rifle, thus indicated, because it has the stock (85) containing the recoil buffer (114); when the bolt carrier (3) is hit, the recoil buffer (113) moves round the turning point of the recoil buffer (114) so the bolt carrier (3) loses kinetic energy and slows down its motion. In addition, it hits the recoil buffer spring (115) which stop the moving of the bolt carrier (3) completely. When the bolt carrier (3) returns to the front position pushed by the recoil spring (97) and the recoil buffer spring (115) at the beginning of the return of the bolt carrier (3) initiates the return of the bolt carrier (3) , the recoil buffer spring (115) - when the bolt carrier (3) moves to the back position - compresses into a spirally corrugated conical hole slowing down its compression and opening and this attenuates the hit of the bolt carrier (3) and its start in the front position.
2. VHS assault rifle, thus indicated, and in accordance with the Claim 1, because when the front fire lever is in a vertical position and the fire selector (18) leans with its tail part on the front fire lever (19), then the selector ring (20) stays backward with its thickest segment pressing the nose on the upper side of the front fire lever (19) putting the rifle on safety. When the fire selector (18) is pushed to the left for about 150°, the selector ring (20) is moved to its medium thickness. It is fixed by the selector positioner (109) which 'jumps' into the hole in the polymer rifle body (128), the rifle is adjusted to automatic fire. When the fire selector (18) is pushed to the right for about 150°, the selector ring (20) is at its smallest thickness. The rifle is adjusted to single fire because the selector ring (20) in this position has enabled a maximum travel of the front fire lever (19) and with this, through the trigger bar connecting lever (75), it pulls the rear fire lever (46).
3. VHS assault rifle, thus indicated, and in accordance with the Claim 1 and 2, because the cocking device (66) has the cocking lever (67) on its tentacle pin (72) which can be turned to the left or to the right for 90° and be easily pulled towards the stock (85). With it the cocking device (66) is moved and it moves the bolt carrier tube (10) that compresses the recoil spring (97). The cocking device (66) comes into the position from which the cocking lever (67) can return to the front position - it is pushed by the cocking handle pusher (69) through the cocking lever spring (94) into the front position. The cocking device (66) has the cocking device tentacle (68) which can move up and down and which, if necessary, can be pushed by a thumb in the hole in the bolt carrier tube (10). In this way a solid connection is established between the cooking device (66) and the bolt carrier tube (10) so the rifle can be loaded silently or a round pushed into the chamber in case it gets stuck. As soon as the thumb is moved away from the cocking device tentacle (68), it is automatically released by means of the tentacle spring (132).
4. VHS assault rifle, thus indicated, and in accordance with the Claim 1, because it has the magazine carrier (127) which is fixed with two semi-circular tentacles on the reverse side and at the front side it is fixed with the magazine catch carrier (87). It turns round the pin (82) pushed by the magazine catch pusher (83), which is pressed by the magazine catch carrier spring (90). By moving the magazine catch carrier (87) round the turning point, the nose on the upper side of the magazine catch (87) slips from under the tooth and the magazine catch carrier (127) turns aside round the two semi-circular tentacles with the front side down and gets out from its chamber. So, any other magazine carrier (83), with the same listed elements can be taken out and inserted in the same way. The hole for the chosen frame will be different.
5. VHS assault rifle, thus indicated, and in accordance with the Claim 1, because the receiver (4) connects the polymer rifle body (128) and (129) and the rear sight carrier (38) with all the parts, the grenade-launcher sight base (121) with all the parts, the grenade-launcher sight - long (131) with the pertaining parts, and the Picatinny rails (107) on which the desired equipment can be mounted.
6. VHS assault rifle, thus indicated, and in accordance with the Claim 1 and 2, because it has the front sight ramp and hood (7) that has a bore hole on the lower side by which it holds to the barrel (2) and is fixed with the front sight and hood pins (21). In the middle of it there is a bore hole through which gas gets in through the bore hole on the barrel (2) and through the gas regulator (150) it gets into the area of the bigger and smaller diameter of the gas piston (12), pushes the gas piston (12) backward until the smaller diameter of the gas piston (12) gets out of its cylinder. At that moment, the gas goes out through the hole at the front side of the front sight ramp and hood (7), reduces the pressure in front of the gas piston (12) which is by the gas piston spring (93) pushed back to the front position throwing, at the same time, some soot out through the hole at the front side of the front sight ramp and hood (7). The gas piston (12) has a shank between the bigger and smaller diameter, a widening in the cylinder and a small gap between the front side of the gas piston (12) and front sight ramp and hood (7) that serves for temporary soot disposal. On the upper side of the front sight ramp and hood (7) there is a carrier with the mounted night sight (120), the rear sight (64) and the screw (35) used for fastening the front part of the receiver (4).
7. VHS assault rifle, thus indicated, and in accordance with the Claim 1, 2 and 6 because on the upper side of the barrel carrier (1) there is a bore hole for guiding the bolt carrier tube (10). At the same place, crosswise to the bore hole for the recoil spring rod (23), the opening for the case ejection is elongated enabling a direct mechanical access to the cartridge rim. There are no locking teeth so a case is ejected freely as soon as its gets out from the barrel (2) and the impurities collected on the teeth and ring are thrown out, when the bolt (5) turns, the tooth on the bolt (5) pushes the impurities out when the case is discharged from its chamber, the remaining gas pressure blows out the impurities through the elongated opening for the case ejection.
8. VHS assault rifle, thus indicated, and in accordance with the Claim 1, 2 and 7 because it has the bolt carrier tube (10) which is closed at the front and has the tube plunger (11) at the rear end fastened through the bolt carrier tube (10) with the pin (117) and, in the bolt carrier tube (10), it is fastened with the bolt pin (27) forming a firm connection of the bolt carrier tube (10) and the bolt carrier (3). A longitudinal groove has been made on both sides of the bolt carrier tube (10) so it is guided with the recoil spring rod (23). The recoil spring base (149) leans on the recoil spring rod (23). The recoil spring (97) is drawn on the recoil spring base (149) and is placed in the bolt carrier tube (10) so that, on the front side, it pushes the bolt carrier tube (10) and with it the whole mechanism connected to it. At firing, the gas pushes front sight ramp and hood (7) backward through the bolt barrier tube mechanism (10) thus compressing the recoil spring (97) and changing the volume of the space where the spring is placed. The air caught up within the recoil spring (97) rapidly pushes the recoil spring base (149) to the passage made at the front side from the top of the bolt carrier tube (10) thus cooling the whole recoil spring (97) and the area around it as well as the closed space around the barrel (2). When the direction of the bolt carrier tube (10) is changed, it draws in fresh air in a reverse way thus cooling the whole area. When the bolt carrier tube (10) moves backward, the volume of the area at the back side of the bolt carrier tube (10), behind the recoil spring rod (23) increases and, with this, the drawing of fresh air round the barrel carrier (1) so the cooling is even more effective. In the reverse process, air is blown through the same channels out thus cooling the interior of the rifle.
9. VHS assault rifle, thus indicated, and in accordance with the Claim 1, 2, 3, 4, 5, 6, 7 and 8 because the polymer rifle body (128) and (129) are connected with the stock screws (55) and the stock nuts (54), the screws (82), the receiver nuts (34), the screws (32) and (30). The polymer rifle body (128) and the polymer rifle body (129) contain all the vital parts of the rifle. The stock (85) is fastened with the square holder (143), the stock pin (119), the pin (124) and the rifle butt pin (22).
PCT/HR2009/000001 2008-01-09 2009-01-09 Vhs assault rifle WO2009087427A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
HRP20080008A 2008-01-09
HR20080008A HRPK20080008B3 (en) 2008-01-09 2008-01-09 Vhs assault rifle

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WO2009087427A1 true WO2009087427A1 (en) 2009-07-16

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ID=40707686

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HR (1) HRPK20080008B3 (en)
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR877656A (en) * 1941-12-11 1942-12-14 Rheinmetall Borsig Ag Spring serving as a brake and return device for firearms
US2490787A (en) * 1946-11-14 1949-12-13 United Shoe Machinery Corp Inertia buffer
DE1143130B (en) * 1961-09-26 1963-01-31 Mauser Werke Ag Lock brake for automatic firearms
US20060266209A1 (en) * 2005-02-09 2006-11-30 Piotr Grabowski Reactive mechanism for firearms
FR2894329A1 (en) * 2005-12-01 2007-06-08 Olivier Cassar Weapon`s e.g. firearm, slide resetting system, has lever pivoting under reversion of slide to compress recoil spring with help of stopper, where rotation of lever slides stopper along guide pin

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR877656A (en) * 1941-12-11 1942-12-14 Rheinmetall Borsig Ag Spring serving as a brake and return device for firearms
US2490787A (en) * 1946-11-14 1949-12-13 United Shoe Machinery Corp Inertia buffer
DE1143130B (en) * 1961-09-26 1963-01-31 Mauser Werke Ag Lock brake for automatic firearms
US20060266209A1 (en) * 2005-02-09 2006-11-30 Piotr Grabowski Reactive mechanism for firearms
FR2894329A1 (en) * 2005-12-01 2007-06-08 Olivier Cassar Weapon`s e.g. firearm, slide resetting system, has lever pivoting under reversion of slide to compress recoil spring with help of stopper, where rotation of lever slides stopper along guide pin

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Publication number Publication date
HRP20080008A2 (en) 2009-07-31
HRPK20080008B3 (en) 2010-06-30

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