WO2006120487A2

WO2006120487A2 - Vhs rifle

Info

Publication number: WO2006120487A2
Application number: PCT/HR2006/000010
Authority: WO
Inventors: Marko Vukovic
Original assignee: Marko Vukovic
Priority date: 2005-05-10
Filing date: 2006-05-08
Publication date: 2006-11-16
Also published as: WO2006120487A8; WO2006120487A3; HRP20050412A2

Abstract

The VHS rifle shown on Figure 1 , among other, has a handgrip 30 that is placed in the rifle's centre of gravity, so it can be held in a single hand. The rifle has so called 'soft' opening and closing of the breech 12 that results in light recoil when a shot is being fired. At the front end of the handgrip 83 are the facilities for mounting of the bayonet 97, and in front of the front handgrip 83 is a swallowtail grove for attaching a lamp or an IR lamp 87. In the middle of the cover 19 is a handgrip for carrying the rifle. The rifle has integrated mount for attaching the grenade launcher 88, and mechanism for its firing, Figures 4. The bottom part of the handgrip 30 contains the feet 78 that can be folded into the groove on the handgrip 30. In the middle of the cover 19 is a mounting for attaching all sight types, Figure 1. This rifle, in spite of all accessories and contents, does not weigh more than 2 kilograms, without ammunition, bayonet, lamp and the grenade launcher barrel.

Description

VHS RIFLE

DESCRIPTION OF THE INVENTION

1. TECHNICAL FIELD

This invention refers to a rifle that has facilities to attach combination of lamp, bayonet and a grenade launcher, mounting of a front handgrip, mounting of all types of additional sights, that is according to the International Patent Classification (IPC) classified as: F 41 C 7/00 small arm fired from the shoulder.

2. TECHNICAL PROBLEM

The existing rifles known in the world that are used as active armament have strictly defined concepts. They are either assault rifles or special purpose ones, airborne or light, for armoured vehicles, short rifles or assault rifles for special units.

Neither of the mentioned rifles has ability to act for all above mentioned purposes. And this means that no rifle has the all described and necessary action functionality needed for universal purpose weapon.

E.g. if the construction of a rifle is with the bullet magazine and the striking mechanism placed behind the handgrip with the trigger, that type of the rifle does not have a bayonet and the grenade launcher.

If the construction is such that the bayonet and grenade launcher are mounted, there is no lamp, no elastic sights and does not have the necessary balance for holding in one hand. Besides that, all the known rifles have weight of 2.8 kg and more, which is considerable burden for the soldier. If the magazine is mounted in front of the handgrip, such rifles have significantly shorter barrels, and thus lower bullet speed. All rifles operate mainly with active loaded opening of the breech, thus having stronger recoil, and when firing automatic bursts tend to deflect the barrel upwards, that results in the wider spread of bullets. The rifles constructed with the 'frog leg' also have the supply of gasses on the outer side of the cartridge case, while it is still in the barrel. This leads to loss of the bullet energy and again reduction of the bullet speed. In both cases jams are frequent, caused by triggering the case in the middle, which leads to the problem of extracting the remaining part of the case from the barrel, to continue firing. Additional disadvantage of such construction designs for the rifles if the 'walking' of the breech handle, which moves as fast as the breech itself, and leads to the frequent injuries to the arm and hand.

The firing speed of the existing rifles is very fast, which is not beneficial from the point of the ammunition expenditure. Some manufacturers used mechanisms that slowed down the striking, thus reducing the fire speed, but that also caused additional problems, and since such rifle construction designs were complicated.

Not one of the existing rifles has an integral grenade launcher; it is constructed as a separate weapon that is fitted to the existing weapon - the rifle. The assembly of such complex weapon was very complicated, required special tools, mounting and dismantling took long, which means it usually cannot be done under battle conditions.

All rifle types for various purposes do not have fitted the feet for aiming from the prone position. The existing rifles are not prepared for all types of sights.

3. STATE OF THE ART

Some world known rifles solve some of the problems described in the section 2, but in a more complicated manner, thus significantly increasing the production costs of the rifle, showing lower target practice results, having more jams and making them heavier. However, the solution for some of the problems, like combined mounting of a lamp, bayonet and grenade launcher, mounting of the front handgrip, mounting of all types of sights, and the complete solution, has none of the world rifles.

4. EXPLANATION OF THE NATURE OF THE INVENTION AND DESCRIPTION

This description will cover only those parts (assemblies) of the rifle that are new or designed in a new manner. The method for opening of the breech 12 on the figures 3 and 4 is so called 'soft opening'. The gunpowder gasses pass through a gas pipe system 25; enter through the breech body 5, pressing on the back end of the breech 12, and thus balancing the forces acting on the head of the breech 12. Increased force on the breech 12 pushes back the breech body 5, that by its conical part rotates the breech 12, thus freeing its cogs from the front side of the barrel mount 3, then together travelling backwards (the breech body 5, and the breech 12). After starting to travel backwards (because of the increased force acting on the breech body 5) further movement is enabled by the inserted gas pipe 25, through which the gasses expand that continue to push the breech body 5 towards the back, thus ensuring the movement of the breech 12. Thus is ensured ejection of the cartridge case in the back position, and the recoil spring 29 is used to load the next cartridge.

When the breech body 5 leans to the barrel mount 3, the blocking shaft 9 slips and the breech 12 is rotated along its axis by the segment 6 and thus the breech 12 is locked again.

For this rifle, the cover 19, Figures 3 and 4 enables leading of the breech 12 during the whole cycle of opening and closing. The cover 19 on one side provides the support for the rifle butt 18 and on the other side protects the aiming mechanism 94. In the mid part of the cover 19, an offshoot is placed for carrying of the rifle and at the very front end of the cover 19 is the muzzle mount 24.

The front handgrip 83, Figure 2, is fitted to the same mount that holds the launcher barrel 31 at the back side, by the lever mechanism 86, and on the front side it is plugged into the barrel 2. In the middle of the front handgrip a swallowtail grove is placed, that serves as the mount for the lamp 93 or IR-light 87. The front lower side of the front handgrip 83 contains a slot for fixing the bayonet 97.

On Figures 2 and 4 the handgrip 30 is shown, that permanently carries the mechanism for handling and fixing the grenade launcher 88, firing pin 34, launcher barrel mounting 31 , and launcher trigger 44. The grenade launcher 88 is stacked on the barrel 2, and the right side of the launcher is slotted in the semicircle of mounting cogs for the launcher barrel 31.

In the bottom part of the handgrip 30 the feet 78 are placed, attached by the shaft 82, and the feet holder 77. When closing the feet 78, they are pressed one towards another, thus falling of from the groove on the handgrip 30, then they are rotated upwards around the shaft 82, and are placed in the handgrip groove 30.

The trigger housing Figure 3 contains the parts of the triggering mechanism. The striker 66 turns around the striker shaft 55 and at one moment turns the striker shaft 55, thus permitting the downwards movement along the shaft and thus catching the striker 66 and blocking the striker 66 in sprung position. The catch handle 57 is used to release the striker 66, as the second safety variant preventing accidental shooting of the rifle.

The Figure 3 shows the triggering mechanism, consisting of the trigger housing 54, striker base 55, catcher 56, catch handle 57, striker spring 58, catch bushing 59, spring mounting shaft 60, spring height adjuster 61 , adjuster 62, striker safety pin 63, catcher 64, striker spring mounting 65, striker 66, adjuster handle 67 and adjuster spring 68.

By the standard trigger 33 Figures 1 and 4, the catch handle 57 is pulled, thus releasing the cogs holding the striker 66, that by rotating around the striker shaft 55, rotationally hits the firing pin. This starts the process of opening the breech 12, when the breech body 5, pushes the striker 66 and catches it on the cogs of the catcher handle 57, thus making it ready again for next stroke on the firing pin 17.

Claims

PATENT CLAIMS

1. The VHS rifle is characterised by the gunpowder gasses passing the system of gas pipes (25), entering through the breech body (5), and applying pressure on the back end of the breech (12), equalising the forces on the front and back sides of the breech (12), thus moving them in the desired direction by applying a small force, Figures 3 and 4.

2. The VHS rifle is characterised, according to the request 1 that the increase of the gunpowder gasses pressure before the breech (12), pushes the breech body (5) backwards, with its conical part rotating the breech (12), thus releasing the cogs on the front side from the barrel mount (3), so the breech body (5) and breech (12) move together towards back, and after initial backward movement further movement is provided by the gases coming through the inserted gas pipe (25), through which the expansion of gas continues, further pushing the breech body (5) and the breech (12). In their back position, the ejection of the cartridge case is performed, and the recoil spring (29) loads the next cartridge in the barrel (2), by moving of the breech body (5) and breech (12) into the forward position, Figures 1 , 3 and 4.

3. The VHS rifle is characterised by, according to the requests 1 and 2, while the breech (5) is leaning against the barrel mount (3), slipping of the blocking shaft (9) and the breech (12) is rotated around its axis by the segment (6), thus locking the breech (12) again, Figures3.

4. The VHS rifle is characterised by, according to the requests 1 , 2 and 3 the cover (19) that enables guiding of the breech (12) during the whole opening/closing cycle, the cover (19) on the right side ensure support for the rifle butt (18), and on the left side protects the aiming mechanism (94), at the front side of the cover (19), an offshoot is placed for carrying the rifle, and at the front side of the cover (19) a muzzle mount (24) is placed, Figures 3 and 4.

5. The VHS rifle is characterised by the front handgrip (83), connected to the same launcher barrel mounting (31), at the rear side by the lever mechanism (86), on the front side stacked on the barrel (2), in the mid section of the front handgrip (83), a swallowtail grove is placed, that serves as the mount for the lamp (93) or IR-lamp (87), The front lower side of the front handgrip (83) contains a slot for fixing the bayonet (97), Figures 2.

6. The VHS rifle is characterised by the handgrip (30) that permanently carries the mechanism for handling and fixing the grenade launcher (88), the launcher firing pin (34), permanently carries the mechanism for handling and fixing the grenade launcher (31), launcher trigger (44). The grenade launcher (88) is stacked to the barrel (2), and the right side of the launcher (88) is slotted in the semi-circle of mounting cogs for the launcher barrel (31), Figures 2 and 4.

7. The VHS rifle is characterised by the handgrip (30), having feet (78) attached to the lower part of the handgrip, fastened by the shaft (82), feet holder (77). When closing the feet (78), they are pressed one towards another, thus falling of from the groove on the handgrip (30), then they are rotated upwards around the shaft (82) and are placed in the handgrip groove (30), Figure 2.

8. The VHS rifle is characterised by the striker shaft (55) around which the striker (66) rotates, turns the striker shaft (55), thus permitting the downwards movement along the shaft and thus catching the striker (66), blocking it in the cocked position, the catch handle (57) releases the striker (66), Figure 3.

9. The VHS rifle is characterised by the pressing of the trigger (33) the catch handle (57) is pulled, thus releasing the cogs holding the striker (66), that by rotating around the striker shaft (55) hits the firing pin (17), fires the cartridge, the gases open the breech (12) and push the breech body (5) backwards, which in turn pushes the striker (66), and catches it on the catch handle (57) cogs, after which the striker (66) is again ready to strike the firing pin (17), Figure 1.