RU221125U1 - SHOOTING MODE INTERPRETER - Google Patents

Abstract

The utility model relates to the field of weapons technology and can be used in small arms to switch the firing mode. A firing mode translator is proposed for installation on the receiver, made in the form of a lever on which a flag and a trunnion assembly are located. The flag is made at an angle of 75±5° to the plane of the lever and tapering in the direction from the trunnion assembly. On the side of the trunnion assembly there is a bevel on the flag. The technical result to be achieved by the proposed utility model is to reduce injuries when using hand-held automatic weapons, as well as to reduce its dimensions while maintaining functionality due to the design of the firing mode translator.

Description

The utility model relates to the field of weapons technology and can be used in small arms to switch the firing mode.

A fire control unit for a semi-automatic rifle is known, which includes a rotary shaft containing a first end and a second end, and a first selector element removably connected to the first end of the rotary shaft. Moreover, the first selector element moves between the first position relative to the rotary shaft and the second position relative to the rotary shaft. In this case, the first selector element is configured to rotate the rotary shaft from a safe position to the operating position and back to the safe position when the first selector element is in a first position relative to the rotary shaft. In this case, the first selector element is configured to prevent rotation of the rotary shaft to the actuation position when the first selector element is in a second position relative to the rotary shaft (according to patent US10837729, F41A 19/46, publ. 11/17/2020).

There is known a hand-held small arms with a fire selector, having an automatic and semi-automatic fire mode from a closed bolt, which contains a trigger mechanism with a trigger support, which ensures that when the trigger is released in the automatic fire mode from an open bolt, the bolt frame stops in the open bolt position, sear-held firing from an open bolt. The trigger support may include a support that, upon the first pull of the trigger in an open-bolt automatic fire mode, slides under the rear end of the trigger and supports it in a position that allows the sear to engage the bolt carrier while the bolt is firing when the trigger is fired. the hook is released and it is propped up, but prevents the firing pin from engaging the trigger sear (according to patent RU2750124, F41A 17/46, publ. 06/22/2021).

The disadvantage of the known solutions is that the angle of rotation of the external lever is too large when switching firing modes, as well as its shape, which makes it difficult to switch without taking your hand off the pistol grip of the weapon.

The closest technical solution is the firing mode translator, which is installed in the receiver with the ability to rotate. The translator is made with an additional protrusion; a leaf spring is fixed on the inside of the translator, the front end of which is made with a protrusion that interacts with grooves in the receiver when switching the firing mode (according to patent RU182879, F41C 7/00, F41A 19/46, publ. 05.09. 2018).

The disadvantage of this firing mode translator is that the additional protrusion is made perpendicular to the translator. When switching shooting modes with your index finger without lifting your hand from the handle, there is a high probability of injury to your finger (cut, callus). This may also be influenced by the shape of the additional protrusion, which is not described in this patent. In addition, the dimensions of the weapon depend on the design of the translator, since it is located outside the receiver.

The technical result to be achieved by the proposed utility model is to reduce injuries when using hand-held automatic weapons, as well as to reduce its dimensions while maintaining functionality due to the design of the firing mode translator.

The specified technical result is achieved by the fact that the firing mode translator for installation on the receiver is made in the form of a lever on which a flag and a trunnion assembly are located, and is characterized in that the flag is made towards the bottom of the weapon at an angle of 75±5° to the general plane of the lever and tapering in the direction from the trunnion assembly, while on the side of the trunnion assembly there is a bevel on the flag.

In addition, the flag can be corrugated.

In addition, roundings can be made on the edges (corners) of the flag.

The proposed utility model is illustrated by the following drawings, which depict a special case of its implementation:

Fig. 1 - firing mode translator, axonometry;

Fig. 2 - firing mode translator, front view;

Fig. 3 - firing mode translator, side view;

Fig. 4 - firing mode translator, top view;

Fig. 5 - machine gun with firing mode translator.

The firing mode switch 1 (Fig. 1, 2) is made in the form of a lever 2, on which a flag 3 and a trunnion assembly 4 are located. The flag 3 is made at an angle α = 75±5° (Fig. 3) to the plane 5 of the lever 2. On The lever has a latch 6. The flag 3 tapers at an angle β (Fig. 4) in the direction from the trunnion assembly 4. The flag 3 has a bevel 7 and a rounding 8. Also, the flag 3 can be corrugated (not shown in the figures).

Application.

The firing mode translator 1 (Fig. 5) is installed on the receiver 9 of the hand weapon 10 and serves to switch the firing mode: single, automatic or safety. To fix the translator 1 in each position, a latch 6 is used, which, interacting with the grooves 11 on the receiver 9, prevents arbitrary displacement of the translator 1. The firing mode is switched with the index finger without lifting the hand from the handle 12.

Making the flag at an angle α = 75±5°, as well as its narrowing, bevel and rounding eliminate injury to the finger when switching the shooting mode and the appearance of calluses at the point of contact. The presence of corrugation on the flag additionally fixes the finger on it, which prevents it from slipping and possible damage.

When moving the translator down with your thumb, it is necessary that after completing the movement, the finger easily slides down without encountering strong resistance. When the flag is positioned at 90°, this is impossible, the finger clings excessively to the flag, and additional muscle effort is required to move the finger to the side.

The described form of the flag also reduces the dimensions of the translator, and, consequently, the weapon, thereby preventing the flag from getting caught on clothing, a belt, a case and surrounding objects while using the weapon or carrying it.

Moving the flag at too large an angle is also a bad decision, because if the finger slides without any effort at all, the translator may not work.

At the same time, it was experimentally calculated that pressing the flag more towards the descent (down) is also undesirable, since from this moment it becomes difficult to move the switch up. Moreover, from the applicant’s point of view, this function (simplicity and reliability of upward shift) also increases as a result of the proposed solution.

For the purposes of this application, the formulation that the flag 3 is at an angle α = 75±5° to the plane 5 of the lever implies a common geometric plane. As for the relative position of the flag and the lever plate, since the flag is directed towards the bottom, the angle between the flag and the lever is obtuse and, accordingly, is 105±5°. Considering that the flag can be either completely flat or curved (arc-shaped or spherical), the angle is measured by the general direction vector of the flag, which can be determined by applying a flat object to the lowest extreme points of the curved flag. It should also be noted that the flag can be additionally located at different angles to the plane perpendicular to the plane of the switch. Between the flag and the lever there may be an intermediate part - a neck, a bead, a step, etc. - which should not affect the implementation of angle changes.

Thus, the solutions presented in the utility model reduce injuries when using hand-held automatic weapons, and also reduce their dimensions while maintaining functionality and thereby ensure the achievement of a technical result.

Claims (4)

1. Firing mode switch for installation on the receiver, made in the form of a lever on which a flag and a trunnion assembly are located, and characterized in that the flag is made towards the bottom of the weapon at an angle of 75±5° to the plane of the lever and tapering in the direction from trunnion assembly. 2. Translator according to claim 1, characterized in that there is a bevel on the side of the trunnion assembly on the flag. 3. Translator according to claim 1 or 2, characterized in that the flag is corrugated. 4. Translator according to claim 1 or 2, characterized in that the corners of the flag are rounded.