The fuse for hand grenade non-lethal actions

IPC classes for russian patent The fuse for hand grenade non-lethal actions (RU 2235289):

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Fuse for hand grenades has a bush of the detonation assembly connected inside the grenade body that is connected to the cavity of the fuse outer body, positioned in which is an additional functional assembly of the time fuse, that has a pyrotechnical retarder and a flash igniter, which is positioned in the side seat of the fuse body for initiation of the given flash igniter by means of a trigger pricking-safety mechanism that is positioned in the seat of the fuse body asymmetrically relative to the longitudinal axis of the bush of the detonation assembly of the given fuse. The novelty is in the fact that there is a time controller of the hand grenade blast, which contains a shaped retarder frame rotating in the longitudinal axis of the detonation assembly bush. The frame is made for transmission of the initiating fire impulse from the side flash igniter to some section of the side outer surface of the rotating horizontal semi-ring component that has the respective profile for arrangement of the pyrotechnical component of the retarder on it, and connected to the radial component that is positioned in the radius of the horizontal semi-ring component for further transmission of the initiating fire impulse to the time assembly of the fuse, which initiates the main charge of the hand grenade. Provision is also made for a setting and fixing mechanism of the retarder shaped frame through a preset angle of its turn for determining the angle of setting of the rotating shaped frame of the retarder relative to the side flash igniter according to the digital graduated scale of the time fuse, having an increased time range.

Fuse for training hand grenade / 2355998

Invention relates to training hardware allowing simulation of actual combat means. The fuse for training hand grenade includes the case with the blasting fitted therein, pyrotechnic retarder and safety-piercing mechanism consisting of a ring with cotter-pin, spring-loaded firing pin and the lever. Inside the casing, the plug is coaxially arranged with blunt bottom accommodating a smoke, sound and/or light charge and weakened plug and with a through aperture in a lateral wall on which a pyrotechnic retarder is fitted.

Unified primer for hand grenades / 2473868

Proposed primer comprises fire circuit elements including capsule, igniter, retarder and detonator or petard arranged in soft plastic case with branch pipe, and safety-punching mechanism with spring-loaded striker, trigger, pin, cotter pin and ring arranged in cartridge. Primer cartridge is made from relatively stiff and elastic plastic, for example, armamide. It has two symmetric stepped lengthwise cutouts abruptly converging over open end face, on the side of open end face to height of case branch pipe. Cutouts divide cartridge bottom into semi-cylinders press-fitted on case branch pie with two wedge-like external ledges mating cartridge cutouts in cartridge to be plugged therein and latched. Note here that two radial through holes are made in case branch pipe wall, in plane perpendicular to its ledges. Coaxial cylindrical collar is made above point of safety-punching mechanism to enter inside branch pipe to stop during pining down igniter cap. Gas pressure is created via holes in branch pipe to act on semi-cylinders of cartridge to open it while, via striker, to remove safety-punching mechanism from case branch pipe.

Hand grenade / 2512051

Hand grenade includes fuse with fuse actuator element. The fuse includes at least six microelectromechanical structures. The structures consist of coaxial series of silicon crystal with cantilever needle formed inside, silicon crystal with doped hydrogen and solid oxidant with 50 mcm thick porous layer are, heat-conducting monocrystalline silicon crystal, and silicon crystal with porous layer area of at least 60 mcm thickness, mounted on a glass substrate. The substrate features a hole in the central part. Heat conductivity rate of heat-conducting element is higher than heat conductivity rate of silicon crystal with porous layer area of at least 60 mcm thickness. Microelectromechanical structures are mounted on revolver drum and attached in a frame. The frame is built in a case with vacuum inside. Fuse actuator element includes button with needle, coaxial to cantilever needle and connected to fuse axis by a nut.

The invention relates to the technical devices for short-term neutralization of armed enemies, in particular for non-lethal hand grenades actions, and may find application in special forces to neutralize armed criminals, and military units for training purposes. The fuse for hand grenade non-lethal actions includes a housing located therein primer-igniter pyrotechnic moderator and primer-detonator, as well as safety-nekolny mechanism containing bonded with the housing sleeve, a spring-loaded firing pin trigger lever pin and ring. What's new is that the sleeve has a longitudinal slit and its threaded or grooved part pressed on the landing surface of the housing, which is made of a soft plastic, such as polystyrene, and is equipped with a nozzle, a deepening in the sleeve, the wall of the pipe is made of radial grooves, guides the gas pressure blasting cap igniter is triggered on the wall of the sleeve, and the drummer is equipped with a washer overlying the exit gases of the primer-igniter from the cavity of the socket. The invention allows to avoid damaging debris from the ignition of the explosion is haunted metal parts separated from a grenade with a relatively low speed, safe for rushing. 2 Il.

The invention relates to the technical devices for short-term neutralization of armed enemies, not with high-explosive destruction (non-lethal), in particular for hand grenades with light and sound effect, and may find use in anti-terrorist special forces, and military units for training purposes instead of fighting grenades.

Known igniters for non-lethal hand grenades steps grating levels-igniters, [1, 2], in which the launch of the retarder when you throw grenades at the expense of friction of moving under the action of the spring part on the igniter composition grating capsule. At the same time with the same spring items that may have shrapnel effect, separated from the grenade when it is cast, and the pomegranate and the igniter housing made of non-metallic materials. But the fuses with a grating-capsules-igniters unreliable in action.

Known fuse [3] ignition retarder nekolny mechanism, in which nekolny mechanism after actuation is separated from a grenade in flight trajectory using dopolnitelnoj whom it may result in injury grenade throwing. Therefore, an additional charge is triggered on the trajectory of the grenade after burnout of the first retarder and the undermining of the grenade is made after the burnout of the second retarder required in order nekolny mechanism has thrown a grenade at a safe distance. This fuse is complicated by design (contains two moderator) has increased (not optimal) total time of deceleration operation necessary for its safe and effective use. In addition, when triggered, an additional charge grenade can change its trajectory, which reduces the accuracy of hitting the target.

Known fuse for hand grenade non-lethal actions [4] the prototype. This igniter ignition retarder is well established nekolny mechanism. The fuse has a sufficiently high reliability actions, but his parts are made of metal and can have dangerous shards. Moreover, if the housing and auxiliary parts of the igniter can be made of soft plastics, the drummer and the spring is made of such materials is almost impossible. Therefore, the fuse of this type cannot be used for non-lethal grenades steps.

The present invention solves the hall of throwing safely with small relative velocity without complicating its design, caused by the use of additional charge. For this purpose, the housing of the igniter is made of soft plastic, and for the Department nachalnogo mechanism containing metal parts, used gas pressure blasting cap igniter is triggered, acting both in the axial and in the radial direction.

The fuse for hand grenade non-lethal actions includes a housing located therein primer-igniter pyrotechnic moderator and primer-detonator, as well as safety-nekolny mechanism containing bonded with the housing sleeve, a spring-loaded firing pin trigger lever pin and ring. What's new is that the sleeve has a longitudinal slit and its threaded or grooved part pressed on the landing surface of the housing, which is made of a soft plastic, such as polystyrene, and is equipped with a nozzle, a deepening in the sleeve, the wall of the pipe is made of radial grooves, guides the gas pressure blasting cap igniter is triggered on the wall of the sleeve, and the drummer is equipped with a washer overlying the exit gases of the primer-igniter from the cavity of the socket.

The figure 1 shows the structure of an igniter in longitudinal section; figure 2 - poper is with the washer 2, the spring 3, the trigger lever 4, pin 5 and the ring 6 and the split sleeve 7, and is placed in a plastic casing 8 blasting cap igniter 9, pyrotechnic retarder 10 and radiation blasting cap detonator 11. From technological considerations in the presented design, the drummer made of composite washer 2 role of the shoulder of the striker and the striker 1.

In the service position, the forked end of the arm 4 holds the shank of the striker 1 and itself in turn is fixed by a cotter pin 5.

Before using grenades with screwed in her ardor for the pull ring 6 pin 5, and the lever 4 is held by the hand. When throwing grenades lever 4 is released and under the action of the spring 3 through the shank of the striker 1 is rotated and released from engagement with the striker 1. The latter under the action of the spring 3 through a thin jumper in the housing 8 pins primer-igniter 9, the gases which ignite pyrotechnic retarder 10. At the same time gases into the cavity of the speaker of the socket 12 of the housing 8, a closed top plate 2. The gas pressure in the cavity of the socket 12 through the slots 13 (or radial holes) pushes the sleeve 7, uncoupling it from the housing 8, and acting on the washer 2 and 1 drummer, repels details, red is 3 and a rapid decrease of pressure after the departure of drummer 1 washer 2 from pipe 12 Department of safety nachalnogo mechanism occurs with a relatively low speed, safe for rushing and practically does not affect the trajectory of grenades. After the burning of the pyrotechnic retarder 10 is triggered primer-detonator 11 and from the main charge grenades.

Case 8 should be made of soft plastic, such as polystyrene, first, not to create dangerous shrapnel in the explosion of the grenade, secondly, to provide a secure grip with threaded or grooved part of the liner without screwing, as well as to ensure reliable puncture the thin sealing jumper in the housing 8 of the striker 1.

The sleeve 7 is pressed onto the housing 8 with a focus on the ledge 14 to ensure the fairness of the slots 13 relative to the slit in the sleeve 7, to prevent unauthorized release of gases from the cavity of the socket 12.

The dimensions of the radial grooves 13 in the pipe 12, the angular location, the size of the cavity of the socket 12 selected optimal for reliable and soft separation of safety-nachalnogo mechanism.

The advantage claimed igniter is high reliability design and the possibility of its use for educational purposes.

Sources of information

1. U.S. patent No. 3194161, CL USA 102-64, 1965

2. the Federal Republic of Germany patent No. 1081354, CL 72 1/2 I, 1960

3. Satalitte

The fuse for hand grenade non-lethal action, comprising a housing located therein primer-igniter pyrotechnic moderator and primer-detonator, as well as safety-nekolny mechanism containing bonded with the housing sleeve, a spring-loaded firing pin release lever, pin and ring, characterized in that the sleeve has a longitudinal slit and its threaded or grooved part pressed on the landing surface of the housing, which is made of a soft plastic, such as polystyrene and provided with a socket, a deepening in the sleeve, the wall of the pipe is made of radial grooves, directing the gas pressure blasting cap igniter is triggered on the wall of the sleeve, and the drummer is equipped with a washer overlying the exit gases of the primer-igniter from the cavity of the socket.