RU242562U1 - Two-position grip-buttstock for weapons - Google Patents

Abstract

This utility model relates to mechanical engineering, specifically to individual firearms and other weapons. A two-position grip-buttstock for a weapon reduces the weapon's length by shortening the stock, reduces the weapon's design complexity by eliminating folding stocks, and improves weapon usability by offering two different holding options when firing.

Description

The field of technology to which the utility model belongs

The utility model relates to individual firearms and other weapons.

The purpose of the utility model: to improve the technical and operational qualities of weapons by:

1. Reducing the dimensions of the weapon.

2. Reducing the complexity of the weapon design by eliminating folding stocks.

3. Ensuring ease of use through two ways of holding the weapon (1) when shooting “from the hip” and (2) when shooting “with support on the shoulder”.

State of the art

Analogues:

1. Kalashnikov assault rifles. Fig. 1

2. Grenade launchers. Fig. 3.

The differences between this utility model and analogues 1 and 2 are given in the section “Disclosure of the utility model”.

3. Patent RU 2341754 C2 "Stock of a firearm". The difference between this utility model and its analogue is that in the design of the analogue (Fig. 15, Item 5), the tactical handle under the fore-end Item 3 cannot be considered as an analogue of the inclined handle Item 2, since the combination of the tactical handle under the fore-end with the pistol grip Item 1 by a rod or some other design (Item 4) cannot serve the achievement of the goal of this utility model (reducing the length of the weapon) without introducing into the design a third handle Item 2, or without introducing into the design a rotary handle Item 11. The author is not aware of analogues that achieve the goal of reducing the length of the weapon by introducing a third inclined handle Item 2.

Disclosure of a utility model

Firing a weapon equipped with a pistol grip requires the shooter's hand to be positioned roughly parallel to the line of fire while holding the pistol grip (Fig. 1). However, comfortable use of the weapon requires a stock of considerable length (Pos. 1, Fig. 2), since the shooter must rotate their hand along the line of fire while holding the pistol grip. If the stock is too short, the shooter will have to press their hand against their body, resting the weapon against their shoulder, and rotating their hand to hold the pistol grip will be awkward.

On the other hand, there are weapons held by the body and do not use a pistol grip, such as the RPG-8 (Fig. 3). The shooter places this weapon on the shoulder and positions the hand relatively comfortably perpendicular to the line of fire (Fig. 4). The disadvantage of such a weapon is that the shooter cannot brace the weapon against the shoulder and compensate for the recoil. Therefore, this method of holding the weapon is used for weapons that do not have recoil and/or produce a recoil jet when fired. On the other hand, the shooter can comfortably hold such a weapon by pressing his hand to the body, since he does not have to twist his hand to hold the pistol grip. Another disadvantage of such a weapon is that it cannot be used comfortably when held at the hip, since in this position the weapon is most comfortably held by the pistol grip, when the shooter's hand is parallel to the line of fire (Fig. 5). In this case, with an open palm, the fingers of the hand are conditionally parallel to the surface of the ground (Fig. 6).

The objective of this development is to propose a handle design that would make the weapon comfortable to hold and use in the hip and shoulder positions, while eliminating the need for a long buttstock and requiring the fewest possible changes to the weapon's design.

It has been experimentally established that the most convenient position for the gun raised to the shoulder by bending the elbow is approximately 55 degrees to the line of fire (Pos. 1, Fig. 7). The elbow bend is at point A, Fig. 7, the hand is relatively parallel to the forearm.

A relatively comfortable position of the hand is at an angle of approximately 90 degrees to the line of fire, Pos. 2, 5, Fig. 7. This position of the hand is achieved either by moving the bend of the elbow to point B, Pos. 5, Fig. 7, or by turning the hand, Pos. 2, Fig. 7.

A relatively comfortable hand position is at an angle of approximately 40 degrees to the line of fire. This hand position is achieved either by moving the elbow to point B, Pos. 4, Fig. 7, or by rotating the wrist, Pos. 3, Fig. 7.

Thus, the structure of the human hand dictates two positions of the pistol grip tilt when holding the weapon at the hip and at the shoulder.

The proposed design of the handle - butt (Fig. 8) consists of handle 1 (Pos. 1, Fig. 8), handle 2 (Pos. 2, Fig. 8), short shoulder rest 3 (Pos. 3, Fig. 8), while the length of the weapon is reduced by the value 5 (Pos. 5, Fig. 8) while maintaining the height of the weapon equal to the value 6 (Pos. 6, Fig. 8).

When moving the weapon from the “from the hip” position (Fig. 9) to the “with shoulder support” position (Fig. 10), the shooter grabs the weapon by the handle No. 1 (Pos. 1, Fig. 8) or by the handle No. 2 (Pos. 2, Fig. 8).

The design eliminates the need for a traditional buttstock, reducing the weapon's length. Eliminating the fixed buttstock reduces the weapon's length. Eliminating the folding buttstock reduces the weapon's length when used in a shoulder position, reducing the weapon's complexity and simplifying the process of switching the weapon from the hip to the shoulder position and back by eliminating the need to fold and unfold the buttstock.

The buttstock-grip design can also be implemented using a single grip positioning mechanism (Fig. 11) with a rocking slide or other mechanism. In this case, when moving the weapon from the hip position to the shoulder position and back, the shooter moves the pistol grip from position A to position B and back, then locks it in place, without releasing the grip. This simplifies the weapon's design compared to a weapon with a folding buttstock, and switching the weapon from one position to another becomes easier and faster, since the shooter can continue holding the pistol grip.

The proposed design of the grip-buttstock is implemented in such a way as to minimize changes to the weapon's design. However, the design of the grip-buttstock can be further simplified (Fig. 12) by eliminating the short shoulder rest 3 (Item 3, Fig. 8). In this case, the grip 1 (Item 1, Fig. 8) can serve as the shoulder rest; however, a more significant modification to the weapon's design would be required, shifting the trigger rearward by 1 (Item 1, Fig. 12).

For the most convenient use of the buttstock, it is recommended to extend the trigger, as shown in Fig. 8, Item 4, and eliminate the trigger guard. The proposed buttstock and extended trigger design ensures equal safety when used with a conventional trigger guard.

Additionally, it is proposed to equip the weapon's forend with a tactical grip (Pos. 1, Fig. 10), since the shooter's front hand, when using the butt-grip, is located at a distance from the body that roughly corresponds to the position of the pistol grip on a weapon with a classic butt.

For the most comfortable use of the weapon from a prone position, it is also recommended to raise the sights or move the sighting bar forward, as is done on a bullpup design. This is because the shooter's hands are positioned on either side of the magazine, as in a classic design, preventing the shooter from shifting their line of fire when firing. When using the weapon in a shoulder position from a standing position, the sights implemented in a classic design allow for comfortable use.

The butt-grip can have any design.

An essential property of the utility model is the implementation of a weapon component that provides a method for holding the weapon in two positions: (1) “at the hip” Fig. 6, Fig. 9 and (2) “with support on the shoulder”, Fig. 7, Fig. 10, with the shooter’s hand positioned at an angle of 40 to 90 degrees to the line of fire and regardless of the use of two handles (Fig. 8) or a single two-position handle (Fig. 11) with any mechanism for switching from position A to position B and back.

In this case, the choice of the angle of inclination of the shooter's hand at an angle of 40 to 90 degrees to the line of fire with a preferred angle of 55 degrees is not a determining factor distinguishing this utility model from analogues, since it does not contribute to achieving the goal of the utility model - reducing the length of the weapon when using a conventional butt or simplifying the design by abandoning the folding butt, but only indicates the most convenient range of angles for the location of the third handle Pos. 2, Fig. 8. The author is not aware of analogues that achieve the goal of reducing the length of the weapon by introducing the third inclined handle Pos. 2, Fig. 8. The tactical handle under the forend (Fig. 8) cannot be considered as an analogue of the inclined handle Pos. 2, Fig. 8, since the combination of the tactical handle under the forend with the pistol grip Pos. 1, Fig. 8 by a rod or any other design cannot serve to achieve the goal of this utility model (reducing the length of the weapon) without introducing into the design the third handle Pos. 2, Fig. 8, or without introducing into the design the rotary handle of Fig. 11.

Implementation of a utility model

The design of a two-position buttstock grip for a weapon has been implemented and tested, and the achievement of the utility model's objectives has been experimentally confirmed. Using a two-position buttstock grip reduces the weapon's length while maintaining the same barrel length (Fig. 13), while increasing the barrel length while maintaining the same barrel length (Fig. 14).

Claims (1)

A butt-grip for a weapon comprising handles 1 and 2 located along the lateral sides of a conventional triangle, a short shoulder rest located behind handle 1, and an elongated trigger 4 located at the apex of the triangle in front of handles 1 and 2, wherein the butt-grip is designed with the possibility of positioning the shooter's hand in two positions.