RU2638885C1 - Magazine of large capacity small arms - Google Patents

Abstract

FIELD: weapons and ammunition.

SUBSTANCE: multi-row box magazine includes a housing of box variable section with dividing partitions, a feeder, a feeder spring, and a spring cover. Oblique projections of feeder key element sending the movement of last patrons in the magazine are made in the form of rotating elements, blocking the movement of feeder additional element at the time when feeder passes the area of magazine housing, on which the rebuilding of cartridges from two 2-lane threads in one 2-lane thread is carried out.

EFFECT: increase the reliability of magazine operation.

4 dwg

Description

The invention relates to military equipment, in particular to the device of multi-row box-shaped large-capacity magazines used in automatic or semi-automatic small arms, as well as in machine guns with store-fed.

A known design of a multi-row box-shaped magazine of large capacity for automatic weapons (see patent RU No. 2126944, F41A 9/69, 02/27/1999), in which the case of the store of variable width is made in the form of two cavities tapering from the base of the case to its neck, divided between themselves by partitions that break the cartridges into two-row flows with a staggered arrangement of cartridges. Rebuilding cartridges is carried out through their interaction with surfaces inclined to the direction of flow. In the case of the store, a feeder with a supply spring is installed, made in the form of the main and additional elements interconnected by an additional supply spring.

The disadvantage of this design is the difficulty in obtaining the profile of the narrowing of the store’s case and partitions, as well as the mass-dimensional characteristics of the feeder, which are larger than the counterparts, which negatively affects the overall dimensions and its weight.

A known design of a multi-row box store with a variable number of rows (see patent RU No. 2588558 C1, F41A 9/69, 06/27/2016), adopted as a prototype. The store contains a housing, a feeder, a feeder spring and a spring cover. The housing is box-shaped, of variable cross-section with dividing partitions. The feeder consists of a base and a central feeder, interconnected by a spring, while the supporting surfaces for the cartridges of the central feeder are made above the supporting surfaces of the base.

The disadvantage of the prototype is the possibility of a lag in the rebuilding of one of the last two cartridges, based on the supporting surface of the base of the feeder, at the moment the feeder enters the zone of rebuilding of cartridges from a wide part of the magazine to its narrow part. The result of such a lag can be the leading movement of the central feeder relative to the base of the feeder, and the subsequent jamming of the lag in the rearrangement of the cartridge between the wall of the transitional zone of the store case and the central feeder.

The proposed invention solves the problem of increasing the reliability of the store.

The technical result obtained by the implementation of the invention is as follows: the blocking of the leading movement of the central feeder relative to its base on the section of restructuring the cartridges from two double-row flows into one double-row ensures a guaranteed rearrangement of the last two cartridges located in extreme positions near the walls of the store’s housing, which increases reliability of the store.

The specified technical result is achieved by the fact that in a multi-row box magazine with a variable number of rows containing a box-shaped housing of variable section with dividing partitions, a feeder consisting of a main one having inclined projections and additional elements interconnected by a spring, a feeder spring and a spring cover, new is that the inclined protrusions of the main element of the feeder, guiding the movement of the last cartridges in the magazine, are made in the form of rotary elements that block the movement ue additional feeder element when passing feeder magazine housing portion, at which the changeover of the two two-row cartridges flows in one-row stream.

The invention is illustrated by drawings, where

FIG. 1 is a longitudinal section of an empty multi-row magazine (side view);

FIG. 2 is a longitudinal section of an incompletely equipped multi-row magazine at the beginning of the passage of the conversion zone by the feeder (rear view);

FIG. 3 is a longitudinal section of an incompletely equipped multi-row magazine after the feeder passes the rebuilding zone (rear view);

FIG. 4 - a longitudinal section of the equipped store in its wide part (top view).

The store consists of a housing 1 of a thin-walled box-shaped section with a wide multi-row part 2, a rebuilding zone 3 and a neck 4. The neck is made in the form of a two-row box-shaped channel for storing and transporting staggered cartridges. Bends 5 are made on the neck to hold the cartridges in the magazine and their directions when reloading, internal protrusions 6, as well as front 7 and rear 8 hooks for attaching the magazine to the weapon. On the back inner surface of the wide part 2 of the building and the rebuilding zone 3, a dividing partition 9 is made, which together with the walls of the housing 1 and a removable dividing partition 10 form two double-row channels, with a staggered, wide part of the store’s case, and a zigzag arrangement in the transition zone cartridges. Bends 11 are made from below on the wide part of the body for attaching the spring cover 12. On the front and rear side surfaces of the store’s case, the right 13 and left 14 curved surfaces are made, by means of which the cartridges are rebuilt from two double-row streams into one double-row stream with staggered arrangement of cartridges. Inside the case of the store there is a feeder consisting of a main element (base) 15, an additional element (central feeder) 16, a spring 17 and an axis 18 fastening them. The inclined protrusions 19 are made on the supporting surfaces of the base 15, facilitating the rebuilding of the last cartridges 20 and 21 in the flows when they pass the zone of reconstruction of the store building. Inclined protrusions are made in the form of rotary elements planted on the axis 22 together with torsion springs 23. Between the cover of the spring 12 and the feeder is placed the supply spring 24 of the store. In the unloaded condition, the base of the feeder 15 is spring-loaded 24 to the shoulders of the store case, and the central feeder 16 is pressed by the spring 17 to the restrictive projections 6 in the neck of the store.

The device operates as follows. When the magazine is equipped, the cartridges are placed under the bends of the 5 throat of the magazine. In this case, the cartridges flush the central feeder 16 all the way into the base of the feeder 15, compressing the spring 17. After filling the necks, the rotary elements 19 of the base of the feeder under the action of torsion springs 23 enter the reciprocal recesses on the central feeder 16. Under the action of the next stacked cartridges, the base of the feeder 15 and the central feeder 16 begin to move together, compressing the supply spring 24, opening to fill the transition zone of the store. In this case, the cartridges passing into the transition zone, under the action of partitions 9 and 10, as well as curved surfaces 13 and 14, are alternately sent to the right and left channels of the housing, lining up in a zigzag fashion. To fill the transition zone, the cartridges begin to fill a wide part of the body, lining up in a checkerboard pattern. The process of equipping the store continues until the stop of the base of the feeder 15 in the spring cover 12.

When fired, cartridges are sent one at a time with a bolt of small arms from under the bends of the 5 case of the store. At the same time, the cartridges located in the store, under the action of the composite feeder and the supply spring 24, advance to the neck, moving along the way from two two-row flows into one two-row flow. Throughout the entire period the composite feeder passes the wide part of the store’s case and the zone for changing cartridges from two double-row flows into one double-row, cartridges 20 and 21, which rely on the supporting surfaces of the rotary elements 19 of the base of the feeder 15, block the possibility of the central feeder 16 being pulled out from the base of the feeder under the action springs 17. When the composite feeder approaches the neck, the base of the feeder 15 abuts against the shoulders of the magazine case, the rotary elements 19 of the base of the feeder, no longer a block Rui cartridges, under the action of a central feeder rotate on their axes, compressing the torsion spring 23. Advancing remaining in the neck 4 of cartridges by the central feeder 16 until it stops in the stopping protrusions 6 of the neck.

This design of the feeder can improve the reliability of the store in comparison with analogues, and the combat effectiveness of the weapon as a whole.

Claims (1)

A multi-row box magazine with a variable number of rows, comprising a box-shaped housing of variable section with dividing partitions, a feeder consisting of a main one having inclined protrusions and additional elements interconnected by a spring, a feeder spring and a spring cover, characterized in that the inclined protrusions of the main element feeder guiding the movement of the last cartridges in the store, made in the form of rotary elements that block the movement of the additional element of the feeder at the time of passage the feeder of the section of the case of the store, on which the cartridges are rebuilt from two double-row flows into one double-row stream.

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