RU2446375C2 - Submuzzle grenade launcher - Google Patents

Abstract

FIELD: weapons and ammunition.

SUBSTANCE: proposed grenade launcher comprises breech housing with barrel and percussion trigger including hammer with fire spring and pin articulated thereto, trigger tie rod with trigger and safety pin. Said safety pin consists of rod fitted in trigger tie rod lengthwise bore, sleeve, pin flag and spring. Said sleeve is secured on rod center and has L-like hook with retainer secured opposite it in housing. Stem is made on said sleeve opposite said hook arranged between torsion spring fitted on rod front. Safety pin flag is arranged on rod rear ahead of trigger to be turned to the right and to the-left by marksman finger.

EFFECT: higher fire accuracy.

4 dwg

Description

The invention relates to the field of small arms and can be used in the development of underbarrel grenade launcher, made in the form of a modular design or built into the design of the machine.

The well-known M203 grenade launcher for the M16A1 rifle (Encyclopedia of small arms. Infantry weapons. 250 of the best world models. Chris Shant, published by Omega, 2004, p. 220). There is no mechanism for protecting the capsule against inertial tilt in case of accidental drops of a charged grenade launcher, which does not meet the requirements for the safe operation of the weapon.

Known underbarrel grenade launcher containing a barrel, breech and trigger mechanism with a spring-loaded two-arm safety lever. One shoulder of the safety lever interacts with the trigger, preventing it from cocking in case of accidental drops of the grenade launcher, and the second shoulder with the protrusion on the trigger. When you press the trigger, the protrusion of the trigger, acting on the smaller shoulder of the safety lever, rotates it, disengaging from the pin fixed in the trigger, after which the cock is cocked, it is disconnected from the trigger rod and then, under the action of the mainspring, the grenade capsule is briskly brisk and a shot (Description of the patent RU 2291369, IPC6 F41C 27/06, publ. 10.01.2007 - prototype).

The disadvantages of the prototype are:

- elongated working stroke of the trigger, due to the peculiarities of the trigger mechanism associated with the sequence of operations during the firing of a shot - first the fuse is turned off and then cocking the trigger and firing;

- non-linear diagram of the force on the trigger, due to the same features of the mechanism.

Both of the above circumstances have a negative impact on the accuracy of firing from a grenade launcher.

The task of the invention is to increase the accuracy of firing from a grenade launcher.

According to the invention, the solution to this problem is achieved by the fact that in the under-barrel grenade launcher containing a housing in which a breech with a barrel is installed, a trigger mechanism including a trigger with a combat spring and a firing pin pivotally mounted therein, a trigger rod with a trigger and a fuse from unauthorized cocking, the following technical solutions are implemented:

the fuse consists of a rod located in a longitudinal hole in the trigger rod, on which:

- in the middle part is fixed a sleeve with a L-shaped hook on the lower side and a shank on the opposite side;

- the shank of the sleeve is placed between the feathers mounted on the front end of the rod of the torsion spring, with the possibility of interaction with them when turning the sleeve;

- at the rear end of the rod in front of the trigger, a fuse flag is fixed with the possibility of turning left-right when the arrow is in contact with the finger;

- In front of the L-shaped hook of the sleeve, a stop is installed in the housing.

The essence of the invention is illustrated by graphic materials, where:

- figure 1 shows a longitudinal section through parts and components of a grenade launcher;

- figure 2 shows a cross section along the body, trigger rod and fuse rod in front of the L-shaped emphasis (front view);

- figure 3 shows a cross-section along the body, trigger rod and fuse rod in front of the L-shaped emphasis with the position of the finger of the right hand arrow on the trigger;

- Fig. 4 shows a cross-section through the body, trigger rod and fuse rod in front of the L-shaped stop when the finger of the left hand is the arrow on the trigger.

The grenade launcher comprises a housing 1, in which a breech 2 with a barrel 3 is fixed on the front wall. A trigger 5 with a combat spring 6 is mounted on the axis 4 behind the breech 6. The hammer 7 is articulated on the trigger. The cocking 8 is located in the lower part of the trigger meshing with the hook 9 on the trigger rod 10. From the rear on the trigger rod the trigger 11 is integral with it. The fuse 12 is placed in the longitudinal hole in the trigger rod 12. A sleeve 13 with a L-shaped protrusion 14 is fixed to the rod in the middle part, before which housing mounted stop 15. On the opposite side of the projection on the sleeve 16 has a shank arranged between feathers torsion spring 17 mounted on the front end of the rod. At the rear end of the rod in front of the trigger, the fuse box 18 is fixed. The trigger release spring 19 connects the trigger to the trigger rod, holding the hammer 7 in a position safe for loading the grenade launcher. The spring 20, placed on the trigger rod, compresses it in the transverse direction to the trigger. On the grenade launcher there is a fuse 21, blocking cocking the trigger.

Before firing the details of the grenade launcher occupy the position shown in figure 1. The L-shaped protrusion 14 of the sleeve 13 is located in front of the stop 15, mounted in the housing, which eliminates the possibility of moving the trigger rod 10 back and unauthorized cocking of the trigger 5 when the axial inertial load is applied, for example, when a charged grenade launcher falls on the butt.

Before the shot, the shooter places his finger in front of the trigger 11. The fuse box 18, when exposed to the finger of the right hand, turns to the left side (when viewed from the rear), and when the finger of the left hand is turned to the right side. At the same time as the fuse flag, the sleeve 13 is rotated and its L-shaped protrusion 14 disengages from the stop 15. When the trigger 11 is pressed, the trigger rod 10 moves back. The trigger 9 hook, acting on the cocking cock of the trigger 8, cock the trigger 5, pressing its mainspring 6. At the end of the trigger stroke, the cocking cock detaches with the trigger trigger and the trigger 5 together with the striker 7 under the action of the mainspring 6 turn reverse direction. When pricked with a brisk capsule of a grenade, a shot occurs.

After releasing the trigger, the trigger rod 10, under the action of the spring 19, returns to its original position and its spring-loaded 20 hook 9 falls over the cocking cock 8 of the trigger 5. Under the action of one of the feathers of the spring 17 on the shank 16 of the sleeve 13, the sleeve and fuse rod 12 are turned with a flag 18 to the initial position before firing.

The proposed technical solution was implemented in a prototype weapon and tested with positive test results.

Claims (1)

An underbarrel grenade launcher comprising a housing in which a breech with a barrel is installed, a trigger mechanism including a trigger with a combat spring and a firing pin pivotally mounted therein, a trigger rod with a trigger and a trigger against unauthorized cocking of the trigger, characterized in that the fuse consists of a rod located in a longitudinal hole in the trigger rod, on which a sleeve with a L-shaped hook on the lower side and a shank on the opposite side is fixed in the middle part, the sleeve shank and placed between the feathers of the torsion spring mounted on the front end of the rod with the possibility of interaction with them when turning the sleeve, and at the rear end of the rod in front of the trigger, a safety flag is fixed with the ability to turn left-right when the arrow contacts the finger, and in front of the sleeve emphasis is installed in the housing.

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