JPH05705Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a bullet feed booster that feeds bullets into machine guns, cannons, etc.

Prior Art Machine guns, cannons, etc. (hereinafter referred to as machine guns) are constructed in such a way that a force to draw the bullets is generated by the recoil of the bullets, the pressure of the firing gas, etc. By facing a series of connected bullets, it is possible to automatically feed bullets into the bullet loading port and fire continuously.

However, if you simply place the bullet train facing the bullet loading port, the bullet retraction force generated by the machine gun will pull the bullet train, increasing the machine gun's bullet retraction resistance. Therefore, smooth continuous shooting may not be possible.

Therefore, in the past, a bullet feed booster was installed that used external power to send a train of bullets into the machine gun's bullet loading port, thereby reducing the machine gun's bullet retraction resistance and allowing normal continuous firing. .

However, conventional bullet feed boosters use a drive motor to drive the feed shaft, fix a feed gear that meshes with the bullets on this feed shaft, and rotate the feed gear to apply feeding force to the train of bullets. Since the bullet train is fed into the machine gun's bullet loading port along the ute, the machine gun's bullet retraction speed and the bullet feed speed of the bullet feed booster cannot be synchronized, so the link in the flexible chute is required.・There is a problem where bullet jams such as bullet jams or broken links occur, making it impossible to shoot normally continuously.

In other words, as shown in the table in Figure 1, the bullet retraction force of a machine gun occurs intermittently, that is, each time a bullet is fired, and the bullet retraction speed changes over time. If the bullet train feed speed (bullet train drive speed) is set to the maximum bullet retraction speed A, links and bullet jams will occur because the bullet train is fed too much when no bullet retraction force is generated. .

Furthermore, if the bullet train feed speed is set to the time average value B of the bullet retraction speed, in the diagonally shaded portion where the bullet retraction speed is higher than that, the bullet train will act as a bullet retraction resistance of the machine gun, causing link breakage.

Purpose of the invention The purpose is to prevent bullets from jamming or link breakage even if the machine gun's bullet retraction speed and bullet train feed speed are not synchronized.

Structure of the device A feeding mechanism feeds a train of bullets in a bullet box through a flexible chute to a bullet loading port of a machine gun, and a fixed chute with a bullet storage part is provided in the longitudinal middle of the flexible chute to retract bullets. When the speed is slower than the bullet train feed speed, the bullet train is allowed to slacken and accumulate in the bullet train reservoir.

Embodiment FIG. 2 is an overall perspective view of a bullet feed booster, in which a flexible chute 5 is connected between the bullet loading port 2 of the machine gun 1 and the outlet 4 of the bullet box 3.

As shown in FIG. 3, a bullet train 8 in which bullets 6 are connected in a row by links 7 is stored in the bullet box 3, and the bullet train 8 is delivered from the outlet 4 to the flexible shoot 5 by a feeding mechanism 9. It is sent to the bullet loading port 2 through the.

The feed mechanism 9 has a feed shaft 10 rotatably provided between both side walls 3a, 3a of the bullet box 3.
A feed gear 11 that meshes with the bullets 6 of the bullet train 8 and serves as a bullet train feeding means is provided, and the feed shaft 10 is connected to a drive motor 15 via a pulley 12, a belt 13, and a pulley 14. The rotation rotates the feed gear 11 and feeds the train of bullets 8 along the flexible chute 5 to the bullet loading port 2.

The flexible chute 5 has upper and lower horizontal walls 5a,
5b and the left and right vertical walls 5c, 5d form a flat rectangular tube shape, into which the bullet train 8 is smoothly inserted, and a fixed chute 16 is provided at the longitudinally intermediate portion of the flexible chute 5. There is.

The fixed chute 16 has upper and lower horizontal walls 16 that are continuous with the upper and lower horizontal walls 5a and 5b of the flexible chute 5.
a, 16b, left and right vertical walls 16c, 16d, and continuous left and right vertical walls 16c, 16d form a flat rectangular tube shape, and the lower horizontal wall 16b thereof is curved downward to form a bullet reservoir 17.

The bullet train feeding speed of the feed gear 11 is set to the time average value B of the bullet train retraction speed of the machine gun.

Therefore, the bullet train 8 is the feed gear 1 of the bullet feed booster.
1, the bullet is fed toward the loading port 2, and
When the bullet retraction speed of the machine gun 1 is slower than the bullet train feed speed of the bullet feed booster, the bullet train 8 moves toward the curved lower horizontal wall 16 of the fixed chute 16, as shown by the solid line in FIG.
Since the bullet train 8 curves along the direction b and accumulates in the slack bullet train storage part 17, the bullet train 8 is not sent too much into the machine gun 1, and the bullets 6 and links 7 are not jammed.

Further, when the bullet retraction speed of the machine gun 1 is faster than the bullet train feed speed of the bullet feed booster, the bullet train 8 accumulated in the bullet train reservoir 17 of the fixed chute 16 as shown by the imaginary line in FIG. Since the bullet train 8 is not sagging due to tension, a large tensile force is not applied to the bullet train 8, so that link breakage does not occur.

Therefore, normal continuous shooting can be performed without bullets, links clogging, or links breaking.

Effects of the invention Even if the bullet retraction speed of the machine gun 1 and the bullet train feed speed are not synchronized, bullets can be continuously fed into the bullet loading port 2 of the machine gun 1 without causing jamming or broken links. , can perform normal continuous fire.

Further, since the fixed chute 16 is only provided in the longitudinal middle part of the square tubular flexible chute 5, and the lower horizontal wall 16b is curved downward and the bullet reservoir 17 is provided, the structure is simple. Not only is the cost low, but each wall of the flexible chute 5 and each wall of the fixed chute 16 are continuous, so the bullet train 8
It can be sent smoothly without any problems.

[Brief explanation of the drawing]

Fig. 1 is a table showing the relationship between the bullet retraction speed of a machine gun and the bullet train feed speed of the bullet feed booster, Figure 2 and subsequent figures show embodiments of the present invention, and Figure 2 is an overall perspective view of the bullet feed booster. , FIG. 3 is a front view of the bullet train, and FIG. 4 is an explanatory view of the fixed chute portion in the state of feeding the bullet train. 1 is a machine gun, 2 is a bullet loading port, 3 is a bullet box, 4 is an outlet, 5 is a flexible chute, 8 is a bullet train, 9 is a feeding mechanism, 16 is a fixed chute, and 17 is a bullet train reservoir.

Claims (1)

[Scope of utility model registration request] The bullet loading port 2 of the machine gun 1 and the outlet 4 of the bullet box 3,
The upper and lower horizontal walls 5a, 5b and the left and right vertical walls 5c, 5d are connected by a rectangular cylindrical flexible chute 5, and the bullet row 8 in the bullet box 3 is passed through the flexible chute 5 to the bullet loading port 2 by a feeding mechanism 9. In a bullet feeding booster configured to perform a feeding operation, upper and lower horizontal walls 16 are provided in the longitudinal middle of the flexible chute 5 and are continuous with the upper and lower horizontal walls 5a, 5b and the left and right vertical walls 5c, 5d of the flexible chute 5, respectively.
A, 16b and left and right vertical walls 16c, 16d form a rectangular tube shape, and a lower horizontal wall 16b is curved downward to provide a fixed chute 16 having a bullet reservoir 17.