Disintegrating ammunition belt for automatic weapon

Abstract

The invention relates to a disintegrating ammunition belt for an automatic weapon. The ammunition belt consists of successively arranged, articulatedly connected links made of polymer materials. Each link consists of three cartridge clips connected to one another by a connecting member, the front and rear clips being arranged coaxially on one side of the connecting member at a distance greater than the width of the middle clip. The middle clip is arranged between the front and rear clips on the opposite side of the connecting member, thus forming an articulated connection between links, wherein a cartridge is placed in the front and rear clips of one link and in the middle clip of the successive link. The inner surface of the middle clip is configured in the form of two pairs of coaxial conical surfaces and two flat surfaces. The inner surfaces of the front and rear clips are configured in the form of a cylindrical or conical surface, the directrix of which is formed by a circle or by identical arcs connected by their ends and curving convexly away from the axis of rotational symmetry of the clip. The technical result is an improvement in the performance of the ammunition belt.

Description

[0001] Scattering cartridge belt for automatic weapons

[0002] AREA OF TECHNOLOGY

[0003] The invention relates to automatic small arms, namely to a dispersible cartridge belt for automatic weapons, primarily for machine guns.

[0004] PRIOR ART

[0005] A prior art article describes a cartridge belt for automatic weapons comprising sequentially arranged plastic links pivotally connected to each other by rods and hooks (RU No. 281832501, published May 2, 2024). This belt can be restored to working order if one or more links are damaged by partially disassembling the belt and joining the serviceable parts into a continuous belt. However, the hinged connection of the belt links has one degree of freedom.Another drawback of this belt is its non-disintegrating design, which limits the machine gunner's mobility and maneuverability, as the spent portion of the belt hanging from the machine gun can become caught on an obstacle or get caught in the gunner's feet. This also complicates its use in various autonomous and unmanned combat modules, where the accumulation of spent belt, its tangling, and obstruction can cause difficult-to-resolve delays in firing. This belt also requires a more labor-intensive and time-consuming process to restore its functionality, requiring the use of fine motor skills in both hands. This process involves disconnecting two small hook-shaped hooks and then reconnecting them, which can be difficult or impossible in stressful situations and combat environments (hand tremors, dirty and / or bloodied hands).To remove a broken link(s) from the proposed tape, it is sufficient to remove two cartridges, remove the link(s), and connect the two parts of the tape by inserting one cartridge, which only requires large grasping movements of the hands and can even be done with one hand.

[0006] The closest technical solution to the invention is a dispersible cartridge belt for automatic weapons, comprising sequentially arranged links made of polymeric materials. The links consist of coaxially positioned outer cartridge grips of varying diameters, interconnected via a bridge, and a middle cartridge grip located between the outer cartridge grips of the adjacent link, forming a hinged connection by inserting a cartridge into the formed channel (RU No. 164045111, published on August 20, 2016). This belt is dispersible; however, the hinged connection of its links also has one degree of freedom. Another disadvantage of this belt is that all the cartridge grips have a circular cross-section, and the cartridge is held solely by tension created by the stretching of the plastic when the cartridge is inserted into the outer cartridge grips.This solution cannot ensure reliable retention of the cartridge in the cartridge belt link over the entire operating temperature range of weapons and military equipment (from -50°C to +50°C) due to the fact that plastic has a significantly higher coefficient of linear thermal expansion (110-10-6 1 / °C for polyamide, 70-10-6 1 / °C for polycarbonate) than the metals from which the cartridge case is made (13x10-6 1 / °C for steel, 19x10-6 1 / °C for brass).

[0007] The technical problem is to eliminate the indicated shortcomings.

[0008] DISCLOSURE OF THE INVENTION

[0009] The technical result consists in increasing the operational properties and application possibilities of the cartridge belt by ensuring reliable retention of the cartridge in the link by using the elastic properties of the plastic, namely the elastic force of bending, instead of the elastic force of stretching, and increasing the range of variation of the angles of intersection or crossing of the axes of adjacent cartridges, that is, increasing the mobility of the hinge joint of the links, due to the special shape of the middle cartridge grip, which can be used in the creation of more compact and simpler feed paths for the cartridge belt.

[0010] The technical problem is solved, and the technical result is achieved by the fact that a dispersible cartridge belt for an automatic weapon consists of sequentially arranged and pivotally connected links made of polymeric materials, wherein each link consists of three cartridge grips connected to each other by a bridge, wherein the front and rear grips are located coaxially at a distance exceeding the width of the middle grip, on one side of the bridge, and the middle grip is located between the front and rear grips on the opposite side of the bridge, forming a hinged connection of the links by placing a cartridge in the front and rear grips of one link and the middle cartridge grip of the next link.The inner surface of the middle grip is designed as two pairs of coaxial conical surfaces, rear and front, and two flat surfaces. The rear conical surface in the pair has an opening angle smaller than the opening angle of the front conical surface. The conical surfaces in the pair share a common guide. The axes of the pairs of conical surfaces lie in the plane of symmetry of the link bridge and intersect. The flat surfaces are tangent to both rear conical surfaces simultaneously. This design ensures freedom of angular positioning of the chuck placed within it within a certain range within the plane of symmetry of the link. The outer surface of the middle grip can be equidistant from the inner surface.

[0011] The technical result is also achieved by allowing the inner surfaces of the rear and front grips to be designed as cylindrical or conical surfaces, with a guide formed by a circle or identical arcs connected at their ends, with convexities directed outward from the grip's axis of rotational symmetry. This shape can be bent into a circular cylinder or circular cone when the chuck is inserted into the grips, ensuring its secure retention across the entire operating temperature range.

[0012] BRIEF DESCRIPTION OF THE DRAWING FIGURES

[0013] The invention is explained with the help of drawings.

[0014] Fig. 1 shows a general view of a loaded loose cartridge belt; Fig. 2 shows a general view of a link of a cartridge belt; Fig. 3 shows a general view of the feed; Fig. 4 shows the device of the middle cartridge grip; Fig. 5 shows a cross-section of the rear (front) cartridge grip.

[0015] A dispersible cartridge belt for automatic weapons, consisting of sequentially located and pivotally connected links 1 and a drawbar 2, made from polymeric materials by injection molding on an injection molding machine.

[0016] Each link 1 consists of three cartridge grips connected to each other by a bridge 7, the front 4 and rear 6 grips are located coaxially at a distance exceeding the width of the middle grip 5, on one side of the bridge 7, and the middle grip 5 is located between the front 4 and rear 6 grips on the opposite side of the bridge 7, forming a hinged connection of the links by placing the cartridge 3 in the front 4 and rear 6 grip of one link 1 and the middle cartridge grip 5 of the next link 1. The drawbar 2 consists of a handle 8 and a ring 9. The drawbar 2 with its ring 9 is placed between the front 4 and rear 6 grips of the last link 1, completing the loading of the belt with cartridges 3. The inner surface of the middle grip 5 is made in the form of two pairs of coaxial conical surfaces 10, 11 and two flat surfaces 14. The rear conical surface 10 in a pair has an angle solution angle is smaller than the solution angle of the front conical surface 11. The conical surfaces in a pair have a common guide 12.The axes 13 of the pairs of conical surfaces lie in the plane of symmetry of the bridge 7 of link 1 and intersect. Flat surfaces 14 are tangent to both rear conical surfaces 10 simultaneously. The outer surface of the middle grip may be equidistant from the inner surface.

[0017] The internal surfaces of the rear 6 and front 4 grips are made in the form of a cylindrical or conical surface, the guide of which is formed by a circle or identical arcs 15, connected by ends, convexities directed outward from the axis of rotational symmetry 16 of the grip, and having a radius R greater than the radius r of the circle 18 inscribed in the arcs 15.

[0018] In the proposed belt, the reliable retention of the chuck 3 in the belt link 1 is achieved by the elastic force of the plastic bending, the magnitude of which is much less affected by changes in the linear dimensions of link 1 due to heating or cooling of the link than by the elastic force of tension. The chuck is retained by tightly fitting the grips around the chuck and bending the arcs 15, in the extreme case, to a circumference of 17. INDUSTRIAL APPLICABILITY

[0019] Thus, the described cartridge belt significantly improves its performance properties and application capabilities by increasing the range of variation in the intersection or crossing angle of adjacent link axes. This increases the mobility of the link hinge joint, which can be used to create more compact and simple cartridge belt feed paths.

Claims

1. A dispersible cartridge belt for an automatic weapon, consisting of sequentially arranged and pivotally connected links made of polymeric materials, wherein each link consists of three cartridge grips connected to each other by a bridge, wherein the front and rear grips are located coaxially at a distance exceeding the width of the middle grip, on one side of the bridge, and the middle grip is located between the front and rear grips on the opposite side of the bridge, forming a hinged connection of the links by placing a cartridge in the front and rear grips of one link and the middle cartridge grip of the next link, characterized in that the inner surface of the middle grip is made in the form of two pairs of coaxial conical surfaces and two flat surfaces, with the possibility of ensuring freedom of angular position of the cartridge placed therein in the plane of symmetry of the link, wherein the rear conical surface in the pair has an opening angle smaller thanthan the angle of the front conical surface, the conical surfaces in a pair have a common guide, the axes of the pairs of conical surfaces lie in the plane of symmetry of the link bridge and intersect, and the flat surfaces are tangent to both rear conical surfaces simultaneously.

2. A dispersible cartridge belt for an automatic weapon according to paragraph 1, characterized in that the inner surfaces of the front and rear grips are made in the form of a cylindrical surface, the guide of which is formed by identical arcs connected by ends, bulges directed outward from the axis of rotational symmetry of the grip, designed with the possibility of bending when placing the cartridge in the grips.

3. A dispersible cartridge belt for an automatic weapon according to paragraph 1, characterized in that the inner surfaces of the front and rear grips are made in the form of a conical surface, the guide of which is formed by identical arcs connected by ends, bulges directed outward from the axis of rotational symmetry of the grip, made with the possibility of bending when placing a cartridge in the grips.

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