RU2085823C1 - Reloading mechanism of submachine gun - Google Patents

Abstract

FIELD: firearms. SUBSTANCE: reloading mechanism of submachine gun includes column with immobile roller, arming handle in the form of bell-crank, actuating cable. Column is hollow and is fitted with immobile rest. It houses servospring with mobile plate. Mechanism is also provided with additional cable and fixing arm of initial position of bell-crank. End of small arm of bell-crank carries mobile roller, fork and bearings mounted on common axis. Bell-crank and guide are interhinged by means of shackle. Additional cable wraps immobile roller over. Fixing arm of initial position of bell-crank is located in space of handle for provision of kinematic coupling between handle and guide. EFFECT: enhanced functional reliability.

Description

 The invention relates to armored vehicles, in particular remote control weapons of an armored personnel carrier.

A known mechanism for reloading a machine gun, including a rack with a fixed roller fixed on it, a cocking handle made in the form of a two-shouldered lever, an executive cable [1]
A disadvantage of the known mechanism is the small movement of the cable, and therefore, the small stroke of the executive link and the great effort necessary to reload the machine gun at the beginning of the stroke.

 The technical result achieved by the invention consists in providing a large stroke of the executive link and reducing the effort on the handle. This is achieved by the fact that in the reloading mechanism of the machine gun, including the rack with a fixed roller fixed on it, the cocking handle made in the form of a two shoulders lever, the executive cable, the rack is hollow and equipped with a fixed stop, a servo spring with a movable plate is placed inside the rack, and a rack is attached to the rack guide with grooves, the mechanism is equipped with an additional cable and a clamp for the initial position of the lever, at the end of the small shoulder of the lever on one common axis there is a movable roller of the executive cable, a fork and bearings mounted to move in the grooves of the guide, and the lever and the guide are pivotally interconnected by means of an earring, the servo spring abuts at one end of the fixed stop of the rack, and the other at the movable plate, an additional cable bends around the stationary roller of the rack, one end is attached to the movable plate and the other to the fork. The clamp of the initial position of the lever is located in the cavity of the handle with the possibility of providing kinematic communication of the handle and the guide.

 Figure 1 shows a longitudinal section of the mechanism; in FIG. 2 shows a view A in FIG. one.

 The reloading mechanism of the machine gun contains a guide 1, which is attached to the rack 2. Inside the rack there is a servo spring 3, which at one end abuts against the plate 13, and the other against the fixed stop 14. The lever 4 through the earring 5 is connected to the guide. At the end of the small lever arm there is an axis 6 with a roller 7, a fork 8 and bearings 9. The bearings move in the grooves of the guide. Washers 10 rotate on bushings 21 fastened with a lever and prevent axial displacement of the axis with bearings. An additional cable 11 is attached to the plug 8, which bends around the roller 12 and is attached to the plate 13 with the other end. In the initial position, the servo spring 3 is compressed and the lever 4 is held by the dog 15, which engages with the latch 16. The latch is connected to the button 17 by means of the rod 18 and is pressed to a dog with a spring 19. The executive cable 20 is rigidly fixed to the guide at one end, goes around the roller 7 and is attached to the machine gun reload handle with the other end.

 To reload the machine gun, the operator presses the button 17 of the handle (while the latch 16 is disengaged from the dog 15) and moves the lever 4 up. When the lever moves, the roller 7 moves down and pulls the cable 20, which moves the handle of reloading the machine gun. The servo spring 3 helps to reduce the effort on the handle, as it pulls the roller 7 down through the cable 11 and the fork 8.

 At the end of the lever stroke, when the force of the servo spring decreases, a decrease in the force on the handle is additionally provided by reducing the shoulder h.

 After the machine gun is cocked, the lever 4 returns to its original position until it is locked with a latch 16. At the same time, the servo spring 3 is compressed for subsequent cocking. At the end of the stroke, the shoulder h decreases to zero and, despite the increase in the force of the servo spring, the force on the handle decreases. This will ensure that the lever 4 is in the initial position.

 The device samples installed on the armored personnel carrier showed that the use of this mechanism can reduce the force required to reload the machine gun.

Claims (2)

 1. The mechanism of reloading the machine gun, including a rack with a fixed roller fixed on it, a cocking handle made in the form of a two-shouldered lever, an executive cable, characterized in that the rack is hollow and equipped with a fixed stop, a servo spring with a movable plate is placed inside the rack, to a guide with grooves is attached to the rack, the mechanism is equipped with an additional cable and a lock of the lever initial position, while on the cone of the small lever arm on one common axis there is a movable actuator a wasp, fork and bearings mounted with the possibility of moving in the grooves of the guide, and the lever and the guide are pivotally interconnected by means of an earring, the servo spring rests at one end on the fixed stop of the rack and the other on the movable plate, the additional cable bends around the fixed roller of the rack, its one end attached to a movable plate and the other to a fork.  2. The mechanism according to claim 1, characterized in that the lock of the initial position of the lever is located in the cavity of the handle with the possibility of providing a kinematic connection between the handle and the guide.

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