RU2235261C1 - Small arms - Google Patents

Abstract

FIELD: fire-arms; fowling-sporting rifles with drop-barrels.

SUBSTANCE: the invention is dealt with the field of fire-arms, in particular with the fowling-sporting rifles having drop-barrels. The invention provides, that the spring-loaded locking up mechanism and the arm to lock-up a box of the small arms are made with a capability of turning movement on a shaft in one plane. The upper part of the locking mechanism has a groove ensuring forward movement of the locking-up mechanism and a ledge interacting with curvilinear surfaces on the hammers. On a clutch, in its lower part there are ledges interacting with the locking mechanism and on its side surfaces there are wrist pins and the ledges interacting with the grooves of the L-shaped form, made on a box; in the upper part there is a recess interacting with a hook made on the arm of locking-up. Besides the arm of locking-up is made in the form of the three-port arm on one port of which there is a hook, on the other port - a stop, and on the third port - a bead. The lower ledges of the clutch and a ledge of the locking up mechanism are supplied with rollers. The technical result of the invention is an increase of reliability of the locking up mechanism of the rifles at fire and simplification of their design.

EFFECT: the invention allows to increase of reliability of the locking up mechanism of the rifles at fire and simplification of their design.

3 cl, 6 dwg

Description

The invention relates to small arms, in particular to sports and hunting rifles with folding trunks.

Known hunting double-barreled gun by A.S. SU No. 152814, 09/13/1961, IPC F 41 C 7/00, consisting of a block of barrels, a box, a trigger mechanism including triggers and a stock.

Cocking in this gun is carried out during the opening of the trunks cocking hinges that rotate the levers around the axis, moving the platoon back. The rear end of the platoon, interacting with the cylindrical surface of the triggers, rotates them around the axis until it engages with the sear.

The opening of the trunks is carried out by turning the unlocking lever to the right, where the transverse bolt releases the upper hook of the trunks, and the locking frame, interacting with the protrusions of the axis of the lever and moving backward, disengages from the lower hooks of the trunks.

The disadvantages of this gun are:

- high complexity of the manufacture of guns, because a large number of parts interact when opening the trunks and cocking the triggers, which also complicates the fitting of parts;

- insufficient strength of the locking unit, especially for cartridges with high operational pressure, for example, for cartridges of 9.3 × 64 caliber, because the lower locking frame and the upper transverse bolt only keep the trunks from tipping over during firing, and all recoil from the shot is perceived by the box, which leads to an increase in the gap between the barrel unit and the box mirror.

The closest analogue (prototype) is a three-barrel model D-99 shotgun of the German company “Blaser” (see. Master-shotgun, No. 48/2000, p. 54-57), containing a barrel unit with a clutch, a box in which are installed shutter and locking lever, trigger mechanism, including triggers, butt.

The shutter is swinging. When closing the barrel block, the upper combat projection of the bolt and the lower combat plane engage with the clutch and hold the pressure of the powder gases. Cocking hammers (drummers) is done manually. To tighten the barrel block to the hinge axis, the design has a spring sleeve that interacts with the clutch tooth and provides a choice of gaps between the hinge radius and its axis.

The disadvantages of this gun are:

- the lack of automatic cocking of hammers (strikers) when opening the barrel block and, consequently, an increase in the time for firing a shot;

- insufficient reliability of the locking node, because during operation, the spring sleeve weakens, taking the recoil force upon each shot on itself, and further does not provide a complete choice of the gaps between the radius of the hinge and its axis.

The objective of the invention is the creation of a small rifle, providing a technical result, consisting in increasing the reliability of the locking unit when firing and simplifying the design of weapons.

This technical result in small arms containing a barrel unit with a clutch, a box in which a shutter and a locking lever are installed, a trigger mechanism including triggers, a butt, is achieved by the fact that the spring-loaded shutter and the locking lever are rotatable on an axis in one the plane, with the groove made on the shutter, which ensures the translational movement of the shutter, and the protrusion interacting with curved surfaces on the triggers on the coupling are made: in the lower part, the protrusions interacting with the shutter, on Shackle surfaces - pins and protrusions which interact with the slots is L-shaped, made on the box at the top - a recess cooperating with a hook formed on the lock lever.

The locking lever is made in the form of a three-armed lever, on one shoulder of which a hook is made, on the other - an emphasis, and on the third - a tide.

The lower protrusions of the coupling and the protrusion of the shutter are provided with rollers.

The invention is illustrated by drawings, which depict:

figure 1 - small arms in a locked state with pulled triggers;

figure 2 is a section aa in figure 1;

figure 3 is a section bB in figure 1;

figure 4 is a cross-section bb in figure 1;

figure 5 - small arms with folded block of trunks;

in Fig.6 is a view of G in Fig.5.

Small arms consist of a box 1, a block of trunks 2, trigger mechanism 3, butt 4.

In the box 1 there is a block of trunks 2, a shutter 5 on the axis 6, spring-loaded with return springs 7, 8, a locking lever 9 on the axis 6, interacting with the springs 10, 11. The block of trunks 2 consists of a clutch 12 into which the trunks 13, 14 are pressed .

On the lateral surfaces of the coupling 12, trunnions 15 and projections 16 are made. In the upper part of the coupling 12 there is a tide 17 in which a groove 18 is made in a segment shape and a recess 19. Also on the coupling there are guide grooves 20 on the sides, in the lower part there are protrusions 21, divided notch 22.

On the inner side walls of the box 1, L-shaped grooves 23 are made, and in the middle part there are longitudinal protrusions 24.

On the shutter 5 is made an emphasis 25 of a segment shape and a groove 26, a T-shaped emphasis 27 and grooves 28, a protrusion 29.

The locking lever 9 is made in the form of a three-armed lever, on one shoulder of which a hook 30 is made, on the other - an emphasis 31, and on the third - a tide 32.

The trigger mechanism 3 includes triggers 33 and 34, on which are made curved surfaces 35, turning into rectilinear surfaces, and whispered 36 and 37.

The protrusions 21 of the clutch 12 are provided with rollers 38, and the protrusion 29 of the shutter 5 is provided with a roller 39.

To reload weapons, you must press on the tide 32 of the locking lever 9, which, turning on the axis 6, focuses 31 on the springs 10, 11, and the hook 30 leaves the recess 19 and releases the sleeve 12. When the barrel unit 2 is rotated on the trunnions 15, the coupling 12, interacting with the stop 25 of the shutter 5, pulls it along, and the shutter 5 moves progressively along the groove 26. With a further rotation of the barrel unit 2, the coupling 12 with its projections 16 will rotate the shutter 5, compressing the return springs 7, 8, which, in turn, interacting protrusion 29 with a curved surface mi 35 on the triggers 33, 34, will rotate them before setting on the sear 36, 37.

To reduce the cocking efforts of the hammers 33, 34, the protrusions 21 of the coupling 12 and the protrusion 29 of the shutter 5 are provided with rollers 38 and 39, respectively.

When closing the barrel block 2, the shutter 5 under the action of return springs 7, 8 will follow the protrusions 21 of the coupling 12, turning around axis 6. Then, the protrusions 21 will go into the grooves 28 of the stop 27 of the T-shaped shutter 5, and the stop 25 of the segment shape will enter the groove 18 of the segmented shape of the clutch 12. In turn, the tide 17 of the clutch 12 at the end of the rotation of the barrel unit 2 interacts with the hook 30 of the locking lever 9, turning it and compressing the springs 10, 11. The hook 30 of the locking lever 9 under the action of the springs 10, 11 pops into the recess 19 of the coupling 12, fixing it in the locked position. In this case, the longitudinal protrusions 24 of the box 1 will enter into the guide grooves 20 of the coupling 12, and the protrusions 21 into the L-shaped grooves 23 of the box 1, having selected all the gaps as a result of the interaction of the protrusions 21 with the upper planes of the L-shaped grooves 23 of the box 1, providing a rigid without quality locking of the barrel unit 2 with box 1.

Thus, the proposed design of small arms provides increased reliability of the locking unit when firing and simplifies the design of weapons.

Claims (3)

1. Small arms containing a barrel block with a clutch, a box in which the shutter and the locking lever are installed, a trigger mechanism including triggers, a butt, characterized in that the spring-loaded bolt and the locking lever are rotatable on an axis in the same plane, at the same time, a groove is made in the upper part of the shutter, which ensures the translational movement of the shutter, and a protrusion interacting with curved surfaces on the triggers, on the coupling, in the lower part, protrusions interacting with the shutter are made on the side turns khnakh - trunnions and protrusions interacting with the grooves of the L-shaped form, made on the box, in the upper part - the recess interacting with the hook made on the locking lever. 2. Small arms according to claim 1, characterized in that the locking lever is made in the form of a three-armed lever, on one shoulder of which a hook is made, on the other - an emphasis, and on the third - a tide. 3. Small arms according to claim 1, characterized in that the lower protrusions of the clutch and the protrusion of the bolt are equipped with rollers.

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