BR202020019521U2 - Constructive arrangement provided in firearm magazine - Google Patents

Abstract

The following summary for a utility model refers to the development of a magazine (6) for firearms (8), where several functional improvements were introduced in the equipment, anti-tilt system (3) and the magazine (6) is equipped with an external stop (5) position limiting next to the trigger guard (7) of the weapon (8), three centering guides (9, 10 and 11) in the mechanism housing, precise fittings (12) and grooves and ribs (13 ) on the outside.

Description

CONSTRUCTION ARRANGEMENT PROVIDED IN CHARGER FOR FIREGUN TECHNICAL FIELD

[001] The following descriptive report for a utility model refers to the development of a firearm magazine, where several functional improvements were introduced in the equipment, produced with a combination of high strength engineering polymers, reinforced with long glass fiber , manufactured in a single injected body, corrosion-proof, self-lubricating, it does not have special welds or joints, the constant internal curvature guarantees a smooth and unobstructed movement of the ammunition.

STATE OF ART

[002] The ammunition loader for firearms, for example, a rifle, undergoes several efforts during its use, where it must maintain its position centered with the magazine housing of the mechanism box, requiring minimal clearance to guarantee the supply of the ammunition. In addition, when the magazine release button is pressed, it must be released and fall/detach from the mechanism housing, without any external action.

[003] Patent documents showing ammunition magazines for firearms are known in the art. For example, US 20150198394 provides in one embodiment, the adapter which can be made of steel as opposed to aluminum which is used for the lower receiver. This provides a more durable surface for interaction with the compartment's front flap, which is also steel and can be molded into the plastic housing. Accordingly, and in one embodiment, the lower receiver may be constructed of aluminum or, alternatively, an aluminum alloy while the adapter may be constructed of steel or, alternatively, an alloy steel. As such, the lower receiver is configured for portions formed from two different materials, each with different characteristics.

[004] Document JP 2019095188 describes a compartment made of suitable plastic materials. Production using, for example, injection molding procedures is economical and these magazines are characterized by high reliability. For example, plastic magazines (loaders) are less likely to crumple than sheet metal, and appropriately sized plastic magazines are also more robust and weigh less than sheet metal magazines and can be freely shaped.

[005] US 9766264 describes an ammunition magazine, preferably made of a reinforced polymer, utilizing a structurally improved crest, angled guide rails and a follower made to interface with said guide rails to reduce wobbling. The preferred embodiment also features a protective cover that distributes spring forces to more structurally sound areas of the magazine, thereby reducing feed end play, and an ammunition indicating system comprising at least one window and a noticeable marker on the follower spring. The follower and housing liner are also designed to interact to prevent the follower from bouncing off the feed end and the housing floor plate utilizes a lock plate and a sliding relationship between the floor plate, the lock plate and the compartment for attaching the floor plate to the charger housing. The cover features integrated tools for, among other things, unloading and disassembling the charger.

TECHNIQUE PROBLEMS

[006] Many chargers on the market have problems with the support points, which can lead to imbalance and difficulty with quick replacement of the charger. Also, there are chargers that do not have these support points.

[007] Another important point is the absence in the known magazines of an external stop that limits the positioning area for the action of the weapon's detent, ensuring that if the magazine is mounted on the weapon and it is going to suffer an eventual fall, keep the magazine righteous.

[008] Also, a constant complaint from users is referring to the charger breaking in case of fall. When the magazine lands on top, loaded and upside down, it cracks. Many manufacturers ship a new charger to customers when this happens.

PROPOSED SOLUTION

[009] Thus, in order to solve the problems pointed out, it was developed in a constructive arrangement provided in a firearm magazine, where improvements were introduced in the loaded in relation to the support points of absence of the stop.

[010] The study of the statics of a material point or of extended bodies points out two conditions for equilibrium to exist: the sum of the forces acting on the body must be zero (∑F = 0) and the sum of the torques (or moment ) that act on the body must also be zero (ΣT = 0).

[011] The behavior of a rigid body (set of particles whose position does not vary with time), in a situation where its original position is changed, determines different types of equilibrium. In this way, only three balance points are used to keep the charger in balance, even with external action.

[012] Another important point that was considered to use only three points of support refers to the friction force, because the magazine housed in the mechanism box is static and when it is released, the static friction force acts on the whole the surface in contact between the two components.

[013] Using only three points of support, it ensures that the magazine maintains balance/centering, in addition to reducing friction between the magazine and the mechanism body when releasing or connecting the magazine to the weapon.

[014] In addition, the assembly or disassembly of the magazine to carry out the internal cleaning of the body, cleaning of the spring and cleaning of the conveyor can be carried out without tools and in any location.

[015] Even during falls or during shooting, there is no way for the magazine to disassemble without the action of the button that is on the lock itself.

[016] To prevent the magazine from cracking, the proposed solution is to include an over-injected metallic insert in the body to eliminate the possibility of breakage due to the fall of the fully loaded magazine with the mouth downwards.

DESCRIPTION

[017] The characterization of this utility model is made through representative drawings of the constructive arrangement provided in a firearm magazine, in such a way that the product can be fully reproduced by an appropriate technique, allowing full characterization of the functionality of the claimed object.

[018] From the figures elaborated that express the best way or preferential way of realizing the product now idealized, the descriptive part of the report is based, through a detailed and consecutive numbering, where it clarifies aspects that may be implied by the representation adopted, in order to clearly determine the protection sought.

[019] These figures are merely illustrative, and may present variations, as long as they do not deviate from what was initially claimed.

• - a figura 01 mostra um detalhe em perspectiva do carregador proposto, onde se pode ver o transportador da munição, a trava do transportador no corpo e o sistema anti-inclinação;
• - a figura 02 mostra um corte longitudinal no carregador, onde se pode ver a mola e o transportador da munição;
• - a figura 03 mostra figuras em perspectiva do carregador com o batente, indicando a posição de atuação deste batente na arma;
• - a figura 04 mostra um detalhe em perspectiva do carregador, onde estão indicadas as guias para centragem;
• - a figura 05 mostra uma perspectiva dos encaixes, nervuras e ranhuras da parte externa; e
• - a figura 06 mostra perspectivas do inserto metálico sobreinjetado e seu encaixa no carregador.

[020] In this case you have to:

• - figure 01 shows a perspective detail of the proposed magazine, where the ammunition carrier, the carrier lock on the body and the anti-tilt system can be seen;
• - figure 02 shows a longitudinal section of the magazine, where the spring and the ammunition carrier can be seen;
• - figure 03 shows perspective figures of the magazine with the stop, indicating the position of action of this stop on the weapon;
• - figure 04 shows a perspective detail of the magazine, where the centering guides are indicated;
• - figure 05 shows a perspective of the fittings, ribs and grooves of the external part; and
• - Figure 06 shows perspectives of the over-injected metallic insert and its fit in the magazine.

[021] A preferred embodiment of the proposed arrangement employs a conveyor (1) cooperating with the lock (2), where this conveyor (1) is equipped with an anti-tilt system (3) that assists in the stabilization of the ammunition, minimizing failures , and is spring-loaded, is made of stainless steel (4) and is heat-treated and stress-relieved for optimal performance. In addition, it has a stop at the end of the body guide where it ensures that the carrier does not tip over even with the reduction of the number of ammunition stacked inside the body during the shot.

[022] The magazine (6) is equipped with an external stop (5) that limits its position next to the trigger guard (7) of the weapon (8), three centering guides (9, 10 and 11) in the mechanism box , forming three balance points to keep the charger in balance, precise fittings (12) and grooves and ribs (13) on its external part that reinforce its structure and guarantee an external surface with additional grip.

[023] The insert comprises a metallic reinforcement (14) that is over-injected to the loader (6), forming an element that prevents the part from cracking in case of falls.

Claims (1)

CONSTRUCTION ARRANGEMENT PROVIDED IN LOADING FOR FIREGUN, with conveyor (1) cooperating with the lock (2), being said conveyor pushing by the spring (4), characterized by being equipped with an anti-tilt system (3) and the magazine ( 6) is equipped with an external stop (5) limiting the position next to the trigger guard (7) of the weapon (8), three centering guides (9, 10 and 11) in the mechanism housing, slots (12), grooves and ribs (13) in its external part, and a metallic insert (14) over-injected to the magazine (6).

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