Unified primer for hand grenades

FIELD: weapons and ammunition.

SUBSTANCE: 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.

EFFECT: decreased sizes, higher reliability and safety.

2 cl, 3 dwg

The invention relates to the technical devices for picking hand grenades high-explosive action, training grenades, as well as non-lethal weapons, in particular non-lethal hand grenades steps with light or other effects of the operation.

Known igniters for high-explosive grenades ("Counsel for small business. Hand grenades". Military publishing house of the USSR, M., 1969), which contain safety-nekolny mechanism with the trigger lever, pin and ring, and a pyrotechnic delay fuse and detonator. This fuse has a high reliability validity and safe in service use. However, the use of it safety nachalnogo mechanism (ISM) with metal parts, creating a dangerous fragments when firing grenades, do not allow it to be used in non-lethal means to defeat.

Known igniters to grenade non-lethal actions, in particular with grating-capsules-caps, for example, patent (US 3194161, CL-64, 1965; DE 1081354, CL 72 1 1/2, 1960). In them launch pyrotechnic moderator is when you throw a grenade at the expense of the movable spring in the igniter composition of special items (trowel). At the same time items that have a fragmentation effect, the same spring are separated from the grenades. However, the practice is ka shows what the fuses with a grating levels are unreliable, have a limited resource in the storage, which significantly limits their widespread use.

The closest technical solution is the fuse for hand grenades illegal actions (EN 2235289, F42C 14/02, 27.08.2004,), taken as a prototype, which contains a firing circuit comprising a primer-igniter, a retarder and a detonator or a firecracker, located in soft plastic with a pipe, and safety nekolny mechanism with a spring-loaded firing pin trigger lever, the axis of the cotter pin and ring located in the sleeve. Start blasting cap igniter is ISM with metal parts separated after throwing gases of the same primer-igniter. Grenades with such fervour proven in anti-terrorist operations against criminal elements to suppress their psychobolia sustainability. However, considerable dimensions EDL fever (especially in height) create a significant inconvenience and limitations when using it. Furthermore, the design of the escapement lever having in the zone of engagement with the rear part of the striker heavily loaded flat "nose" of limited thickness and width, does not guarantee the retention of the striker during storage of the igniter when possible and corrosion and the mouth of the maturity of the metal. This accordingly limits the security of the igniter as a whole.

In operation it also happens the reporter failed to separate EDL during normal throw, because the presence of a single incision in his guide the metal sleeve causes unbalanced its expansion from the pressure of the gases and, as a consequence, the possible misalignment and jamming of the sleeve on the nozzle body.

In addition, the fuse, made mostly of metal parts universal manufacturing (machining), is not optimal according to the criterion of "cost - effectiveness", not because it has high adaptability in production.

The present invention solved the problem of reducing the size (height) of the igniter, enhance security and reliability of its action in combination with the provision of manufacturability.

The technical result of the reduction in size achieved by changing the shape of the striker by eliminating the conventional shank included in the prototype into engagement with the trigger lever, and transfer the contact zone on the front face of the striker located in the form of a flange on its sting. Thus, ceteris paribus, the height of the EDL decreases not less than 1.5 times, while maintaining the size and energy accelerates the striker spring.

The technical result increased security fuse in case EBNA circulation is ensured by strengthening the trigger lever in the area of its engagement with the striker, because instead of forked flat end of limited thickness in the prototype, in our case we used U-shaped convolution, set on edge, which is no less than an order of magnitude increases the stiffness of the lever to prevent it from bending under the action of a strong spring drummer in all conditions.

The technical result improved reliability in the side branch of the EDL is provided by symmetrically affecting efforts on the elements of a demountable connection of the sleeve with the housing when the actuation nachalnogo of primer-igniter and start moderated by the introduction of two evenly spaced longitudinal slits sleeves and execution respectively two radial holes in the nozzle housing. These structural elements are equally direct pressure of the gases on each can liners EDL pressed on the nozzle housing and locked in step cuts on his wedge-shaped protrusions. Ultimately, this leads to reliable disclosure of the sleeve and the guaranteed withdrawal EDL with the nozzle housing of the axial component of the pressure acting through the shoulder of the striker.

The technical result of improved processability is achieved by allowing advanced performance (without mechanical modifications) are the main parts of EDL (shells) from a relatively hard and elastic p is Almassy, for example, armamida, molding under pressure, and exclusion on the inner surface of the thread or roll (embossing). This element plays the role of a prototype of teeth when connecting to the tightness of the junction of the casing - sleeve", in this case replaced by the contacts on the entire surface of two smooth plastic parts, articulated with tension, but without the introduction of teeth, one of the parts in another. The role of such teeth in the proposed solution to fulfill the above-described wedge-shaped protrusions of the housing, providing a snap fit in the stepped sections of the sleeve and, consequently, the structural unity of all elements of the igniter in the service address.

The invention is illustrated by drawings, which shows:

figure 1 is a longitudinal section of the fuse;

figure 2 - view of the fuse side;

figure 3 - view of the fuse top.

The fuse consists of the EDL, which includes drummer 1, spring 2, the trigger lever 3, pin 4 ring 5 and the plastic sleeve 6, and is placed in a plastic casing 7 nachalnogo of primer-igniter 8, pyrotechnic moderator 9 and radiation blasting cap detonator or firecrackers 10. To ensure the reversal of the trigger lever is provided by the axis 11.

In the service of the treatment of the working part of the trigger lever 3 in the form of a U-shaped convolution enters through a lateral groove in the sleeve 6, is fixed W the lint 4, passing through the sleeve and holds the shoulder of the striker 1 from moving to the primer-igniter 8.

Before applying a grenade wound in her fuse is placed in the casting hand, pressing the trigger lever 3 to the grenade, and the other hand on the ring 5 pull out the cotter pin 4 with a pre-flattened antennae, while continuing to hold down the lever.

When throwing grenades (release lever 3) under the action of the spring 2 through the shoulder of the striker 1 the lever is rotated around the axis 11 and releases the striker. The last of the same spring 2 and accelerates through a thin jumper in the housing 7 pins primer-igniter 8, which ignites the igniter pyrotechnic composition moderator 9. Gases from the primer-igniter and igniter composition into the cavity of the nozzle body 7, the overlapped top flange of the striker 1. The pressure of the gas from the cavity of the socket housing through the radial holes decompress the semicylinders sleeve 6, when released from engagement with the notches of the housing and, at the same time acting on the shoulder of the striker 1, pushes through him all the details of the ISM from the housing 7, removing thereby the grenade dangerous elements of the igniter. Moreover, due to the depreciation of the push-down efforts by the spring 2 and the quick release of pressure after the release of the striker from the housing cavity 7, Department of ISM occurs with a relatively small soon the TEW, safe for rushing and practically does not affect the trajectory of grenades. Moreover, after separation of the EDL, bereft of the kind of "horns", the grenade takes the best aerodynamic shape that helps to increase range and accuracy of the throw. After the burning of pyrotechnic moderator 9 actuates the primer-detonator (the firecracker) 10 and then the main charge grenades.

1. Unified fuse for hand grenades, containing the elements of the firing circuit comprising a primer-igniter, a retarder and a detonator or a firecracker, located in soft plastic with a pipe, and safety nekolny mechanism with a spring-loaded firing pin trigger lever, the axis of the cotter pin and ring located in the sleeve, wherein the sleeve is made of a relatively hard and elastic plastic, for example armamida, and from the open end at the height of the socket housing has 2 symmetrically to the longitudinal speed of the cut, sharply narrowed to the open end and divides the lower part of the sleeve on the semi-cylinders, which pressed on the nozzle body with 2 tapered outer ledge response to cuts in the liner belonging to them, with a snap in the wall of the socket housing in a plane perpendicular to its projections made 2 radial through holes, and Durnik safety nachalnogo mechanism over their sting has a coaxial cylindrical flange, included in the cavity of the pipe and overlapping it at the time of firing of the primer-igniter, which together through the openings in the nozzle creates a pressure gases on the semi-cylinders liners for its disclosure, and through the drummer for the simultaneous removal of the safety-nachalnogo mechanism with the nozzle body.

2. Unified fuse for hand grenades according to claim 1, characterized in that the release lever is made in the form of a T-shaped blank of sheet metal, in the area of broadening circuit has teeth, U-shape folded and comes in a lateral groove of the sleeve, through the cheeks of the lever and the sleeve are the axis and the pins and between the teeth and cheeks - sting striker, resting on them their collar.