RU2029218C1 - Wind gun - Google Patents

Abstract

FIELD: rifles. SUBSTANCE: closed hollow enclosure is put on short barrel with rifling grooves. Through holes made in barrel walls in section of bullet inlet over bottom of rifling grooves look towards space of enclosure. Mobile system is formed by bolt, bolt carrier and return-and-firing spring. With firing powder gases push bullet through rifled part of bore, escape simultaneously through holes into space of enclosure and in consequence of it initial velocity of bullet and positive pressure of shot are reduced. EFFECT: expanded application field. 1 dwg

Description

 The invention relates to firearms, namely, guns for determining the wind in the layer of the active section of the trajectory of rocket artillery shells.

 The determination of wind speed using a wind rifle is based on the fact that the wind speed is proportional to the drift of the parachuting body (wind bullet) thrown at a certain height by a shot. The direction of the ballistic wind is determined by the directional angle to the point of incidence of the parachuting body.

 Known single-shot wind rifle, for shooting from which special day sounding cartridges are used, differing in different heights of throwing a wind bullet, and night sounding cartridge [1]. This wind rifle is not unified with the small arms weapons that are in service with the arms, both in terms of ammunition and spare parts, which will cause great difficulties in supply and operation. The limited production of a well-known gun complicates its production.

 The aim of the invention is the development of a wind rifle under a full-time live cartridge, as much as possible unified with a standard small arms, providing a low initial bullet speed, minimal overpressure during firing and acceptable accuracy of fire.

 The goal is achieved in that the wind rifle, including a rifled barrel with a bullet inlet of the chamber, a receiver, a shutter assembly and a trigger mechanism, is equipped with a gas chamber in the form of a hollow closed casing enclosing the barrel, the barrel is made with holes in the walls at the site of the bullet entrance, located in rifling and going into the gas chamber, the shutter assembly is designed as interacting with each other and with the receiver of the shutter and bolt and is equipped with a return spring, while in the rear wall of the gas chamber is made from a hole for the front end of the bolt frame, the width of the transverse holes in the barrel is less than the width of the grooves, and the depth of the grooves does not exceed 0.2 mm

 The drawing shows a shooting part of a wind rifle, a longitudinal section.

 The barrel 1 is fixed in the receiver 2 and is locked by a bolt 3 placed in the bolt frame 4. The shot is fired with the barrel open. To hold the bolt frame 4 on the cocking and descent from it, the trigger 5 is used. The recoil spring 6 is placed in the receiver 2 and the longitudinal channel of the bolt frame 4. The magazine 7 is placed in the window of the receiver 2, and the hammer 8 in the bolt channel 3. The casing 9 is mounted on the barrel 1 and forms a gas chamber, where the transverse holes b, made in the walls of the barrel 1 at the site of the pool entrance of its channel, exit. An opening is made in the rear wall of the casing 9 for the front end of the shutter frame 4. The trigger 10 of the trigger 5 is placed outside the box 2.

 The proposed wind gun works as follows.

 Before firing, the bolt frame 4 by the handle (not shown) is moved to its extreme rear position, while the reciprocating spring 6 is compressed. The frame is held in the rear position by the sear of the trigger 5. For firing, press the trigger 10. In this case, the sear of the trigger 5 releases the bolt frame 4 and, under the action of the spring 6, it moves forward with the bolt 3. The shutter 3 pushes the cartridge out of the magazine 7, sends it to the barrel chamber 1, abuts the barrel and, under the action of the bolt frame 4, rotates, locking the barrel channel. Continuing movement, the bolt frame 4 strikes the hammer 8, which breaks the cartridge capsule. A shot is taking place. Gunpowder gases move the bullet along the bore and, at the same time, flow through openings b into the cavity of the casing 9. Due to this, the initial velocity of the bullet is reduced. Powder gases act on the front end of the slide frame and push it back. At the same time, due to the short barrel length, the pressure in the casing quickly drops and the frame 4 does not reach the rear position, unlocks the shutter, strains the sleeve and returns to the front position. For the next shot, it is necessary to cock the bolt frame 4 again, while the fired sleeve will be ejected.

 When using the proposed wind rifle, the positive effect is expressed in reducing the speed of the bullet when using a standard cartridge, in improving accuracy of fire, in reducing excess pressure during firing, which improves operating conditions and allows the use of sensitive equipment for monitoring the path of the bullet, and in providing the possibility of use for manufacturing of wind rifles of parts of standard combat rifles, which reduces labor costs.

Claims (1)

 A WIND GUN, including a rifled barrel with a bullet chamber entrance, a receiver, a shutter assembly and a trigger mechanism, characterized in that it is equipped with a gas chamber in the form of a hollow closed casing enclosing the barrel, the barrel is made with holes in the walls at the site of the bullet entrance located in rifling and going into the gas chamber, the shutter assembly is designed as interacting with each other and with the receiver of the shutter and bolt and is equipped with a return spring, while in the rear wall of the gas chamber is made from a hole for the front end of the bolt frame, the width of the transverse holes in the barrel is less than the width of the grooves, and the depth of the grooves does not exceed 0.2 mm

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