RU140957U1 - TWO ROW SHOP OF THE RUNNING WEAPON - Google Patents

Abstract

A two-row small arms store containing a body with bends on the neck and with longitudinal guiding extrusions on the side walls, characterized in that in the upper part of the side walls of the housing behind the longitudinal guiding extrusions, additional longitudinal guiding extrusions with smooth curved surfaces are made, and the beginning of additional extrusions is removed from the inner surface of the neck bends to a distance of not less than the size of the diameter of the cartridge flange, and the smallest distance between additional it satisfies the relation: where Ρ is the smallest distance between the extra protrusions; D is the diameter of the cartridge case in the contact zone of the cartridge with additional protrusions.

Description

The utility model relates to the field of small arms, namely, to two-row shops with access to two rounds.

A well-known two-row magazine with access to two cartridges (with the arrangement of cartridges in two rows to the bends of the neck of the magazine case) to the VIKING MP-446 pistol (see ASE-Leti magazine, Finland, No. 5/2003, p. 32), having on the neck of the body there are bends, and on the side walls of the body there are longitudinal extrusions for guiding the cartridge to the line of sending and feeding into the chamber.

Also known is a two-row magazine with access to two rounds (see the magazine "Kalashnikov. Weapons, Ammunition, Equipment", Founder of LLC Azimut, No. 6/2003, p. 10), taken as a prototype. The store contains a case with bends on the neck and with guiding longitudinal extrusions on the side walls.

A disadvantage of the well-known stores is the lack of reliability, since the designs of the well-known stores do not ensure the stability of the position of the cartridges in the store. This drawback is caused by the fact that the cartridge case has a taper, and if the effect of taper when a large number of cartridges are in a magazine is taken into account by the parameters of well-known stores, then the change in the effect of taper with a decrease in the number of cartridges in known stores is not taken into account. However, with a decrease in the number of cartridges in the magazine, the influence of the taper of the cartridges on the position of the cartridges in the magazine decreases and, as a result, the top feed cartridge has the ability to not fully press against the bends of the magazine. This position of the cartridge, which does not correspond to the delivery line, increases the likelihood of a cartridge sticking when feeding into the barrel chamber, and drowning of the cartridge flange relative to the bends of the magazine neck can lead to skipping of the cartridge when feeding, i.e. to delay when shooting.

The objective of the claimed utility model is to increase the reliability of the device.

The problem is solved in that in a two-row small arms store containing a body with bends on the neck and with longitudinal guide extrusions on the side walls, additional longitudinal guide extrusions with smooth curved surfaces are made in the upper part of the side walls of the case behind the longitudinal guide extrusions, with the beginning of additional extrusions are removed from the inner surface of the neck bends to a distance of not less than the diameter of the cartridge flange, and the smallest distance between complete extrusions satisfies the ratio:

, где

where

P is the smallest distance between additional extrusions;

D is the diameter of the cartridge case in the contact zone of the cartridge with additional protrusions.

The claimed utility model improves the reliability of the device (both with a fully equipped magazine and when the magazine is equipped with a small number of rounds) by ensuring a stable position of the cartridges supplied from the magazine to the barrel chamber. Due to the presence of additional longitudinal guiding extrusions with smooth curved surfaces, the cartridges are rebuilt in the magazine case in such a way as to ensure stable pressing of the feed cartridge sleeve to the neck bends with any number of cartridges in the magazine. Removing the beginning of additional extrusions from the inner surface of the neck bends to a distance not less than the size of the diameter of the cartridge flange provides the necessary interception of the cartridge by the neck bends, which also increases the reliability of the weapon.

The device is illustrated in the drawing, which shows: FIG. 1 - general view of the device; FIG. 2 is a section AA in FIG. one.

, где D - диаметр гильзы патрона в зоне контакта гильзы с дополнительными выдавками 5.The store contains a housing 1 (Fig. 1) with bends 2 (Fig. 2) on the neck 3. On the sides of the housing 1 there are longitudinal guides of the extrusion 4 (Fig. 1), behind which there are additional longitudinal guides of the extrusion 5 with smooth curved surfaces 6 (Fig. 2). The beginning of the additional extrusions 5 is removed from the inner surface 7 of the bends 2 of the neck by a distance B which is not less than the diameter of the sleeve flange D _Ф (Fig. 1), and the smallest distance P (Fig. 2) between the curved surfaces 6 of the additional extrusions satisfies the condition

where D is the diameter of the cartridge case in the contact zone of the cartridge with additional protrusions 5.

When the cartridge is fed from the magazine, the upper feed cartridge 8 comes out from under the bends 2 of the neck 3 of the housing 1, while the next and subsequent cartridges with the help of the feeder 10 (Fig. 1) rise up and under the influence of the guide extrusions 4 and 5, the cartridges supplied from the magazine to the chamber, occupy a stable position (the upper cartridge is pressed against the bends 2 (Fig. 2) of the neck, and the next cartridge 9 is in contact with the guides 4 and with additional guides 5), which ensures reliable operation of the weapon.

Claims (1)

A two-row small arms store containing a body with bends on the neck and with longitudinal guiding extrusions on the side walls, characterized in that in the upper part of the side walls of the housing behind the longitudinal guiding extrusions, additional longitudinal guiding extrusions with smooth curved surfaces are made, and the beginning of additional extrusions is removed from the inner surface of the neck bends to a distance of not less than the size of the diameter of the cartridge flange, and the smallest distance between additional wkami satisfies the relation: $$D<P<\frac{D}{2tg{\mathrm{thirty}}^{\circ }}+D,$$ where Ρ is the smallest distance between additional extrusions; D is the diameter of the cartridge case in the contact zone of the cartridge with additional protrusions.

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