JPS62440B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a bottom landing transmitter tube having a detonator, a mechanical delay device, and two inertia sleeves, the detonator being pierced from the back side of the fuze by a firing pin actuated by a spring force. The mechanical retardation device may consist of a blocking body, a lateral bore in the firing pin, and an annulus in the fuze section, in which the blocking body engages the lateral bore in the firing pin and the annulus in the fuze section. The two inertia sleeves are arranged coaxially and one after the other with respect to the fuze part, the inertia sleeves relating to the bottom landing tube which releases the blocking body after the impact deceleration has disappeared.

Known fuzes of this type (Swiss patent specification no.
No. 360927) is designed so that the explosive charge is ignited only at a small deceleration of the bullet when it hits the target. Such fuzes with a temporal response delay are suitable for bullets that should penetrate as deep as possible into the target before ignition in order to obtain a large destructive effect. That is, it is suitable when the target does not have a large resistance to the penetration of the bullet, and therefore when a large deceleration does not occur.

However, if a bullet equipped with such a fuze hits a very hard target, such as a concrete plate or a hard rock, and cannot penetrate it, a large deceleration occurs, which decelerates the fuse before the time-delayed ignition occurs. destroy. Such a fuse would therefore not respond in this case and the bullet would fail to explode.

(Problem of the present invention) A bullet bottom impact signal that functions even when the impact deceleration is extremely large and responds in a timely manner before the bullet and fuse are deformed so strongly that they cannot be ignited. The problem of creating a tube is to be solved by the present invention.

(Means for Solving the Problems) The problems of the present invention are to provide a detonator, a mechanical delay device, and two
The detonator can be pierced from the back side of the fuze by a spring-loaded firing pin, and the mechanical delay device is connected to the blocking body, the side hole of the firing pin, and the fuze. It consists of a ring groove in the part,
And in its blocking position, the blocking body engages with the transverse hole of the firing pin and the annular groove of the fuze part, and the two inertia sleeves are arranged coaxially one after the other with respect to the fuze part, and the inertia The sleeve releases the blocking body after the impact deceleration disappears.In the bottom landing transmitter tube, the fuze part, which is fixed in position, is fixed in the fuze casing by a shear pin, which allows for a very large impact deceleration. This problem is solved by allowing the firing pin to pierce the detonator without delay while remaining connected to the fuze part by the blocking body in the blocking position.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the bullet bottom landing transmitter tube according to the present invention will be described below with reference to the drawings.

Embodiment According to FIG. 1, the bullet has a hollow shell 10 containing an explosive charge 11. There is an aluminum cylinder 12 behind the explosive charge, and this aluminum cylinder holds the explosive charge 1.
1 and fuse 13. There is a ring-shaped steel plate 14 behind this aluminum cylinder, and this steel plate is inserted into the bullet 10 with a gap. A reinforcing agent 15 penetrates through the aluminum cylinder 12 and the steel plate, and is fixed to the front end of the fuse 13.

The fuse 13 is fixed in the cavity of the bullet 10 by a holding mechanism 16. This holding mechanism 16 includes a first ring 17 supporting the front end of the fuze 13;
and a second ring 18 fixed to the elastic body 10. This second ring 18 has an external thread and is screwed into the internal thread of the elastic body 10. The two rings 17 and 18 are integrally connected to each other by a cylindrical web 19. Furthermore, the holding mechanism 16 includes a third ring 20 supporting the rear end of the fuse 13 and a fourth ring 21 fixed to the bullet 10. The fourth ring 21 also has an external thread and is screwed into the internal thread of the elastic body 10. The two rings 20 and 21 are also integrally connected to each other by a cylindrical web 22.

Between the inner wall of the hollow shell 10 and the two webs 19 and 22 and between the two webs 19 and 22 and the fuse 13, there is a deformation space 23 and 24, respectively.

According to FIGS. 2-4, fuse 13 has a device for delayed ignition in bore 25. Fuze part (also referred to as cylinder part) 2 fixed to fuze 13
6 is fixed from the end of the hole to this hole 25
It's getting inside. The front end of the fuze part is provided with an annular groove 27 around the entire circumference, which is bounded forward by an oblique surface 28. The sleeve 29, movable in the bore 25, is pulled up over the fuze part 26 and sits on the desk 42 in the rest position. Hole step 30 of sleeve 29 and firing pin 3
A spring 32 is inserted between the rear end of 1 and the rear end of 1.

The forward end of the fuze portion 26 extends into the bore 33 of the firing pin 31. The firing pin 31 is moved by a blocking body (ball) 34 that prevents its movement, that is, by a fuze portion 26 that is arranged in a transverse hole 35 of the firing pin 31 and connected to the fuze body by the pressing force of a spring 32. It is connected and secured to the cylindrical part 26 by a blocking body 34 which is pressed onto the oblique surface 28 of the cylindrical part 26. A mechanical delay device is thereby formed. At the same time, the blocking body 34 is also pressed against the inner wall of the sleeve 36, which is also passed through the hole 25, and is held by frictional force. The sleeve 36 has a hole of the same diameter as the hole in the front part of the sleeve 29 and joins an oblique end surface 37 of the end face of the sleeve 29. The tapered portion 38 projects to the rear of the guide path of the slider 39. The slider 39 is movable transversely with respect to the bullet axis due to the rotation of the bullet, and has a detonator 40 (FIG. 3), which together with the slider 39 moves from the blocking position shown in FIG. 2 to the firing position shown in FIG. moved to position. A desk 42 is attached to the rear end of the fuze portion 26 by a shear pin 41.
is fixed, the desk is located in the cavity 45 of the fuze body, concentric with the hole 25, and forwardly extends from the shoulder 46.
is supported by

(Operation of the present invention) The operation of the above bullet bottom landing transmitter tube is as follows.

Before firing the bullet, the indicated part of the bullet landing tube assumes the position according to FIG. As soon as the bullet is fired, the slider 39, together with the detonator 40, is moved by the rotation of the bullet from the position according to FIG. 2 to the position according to FIGS. 3 and 4.

Next, upon impact, the detonator is pierced by the firing pin, which can occur in two ways.

First case: If the deceleration at the time of impact is large,
According to FIG. 3, the shear pin 41 is immediately sheared,
and sleeves 29 and 36 and fuze portion 2
6 is moved forward with blocking body 34 and firing pin 31 as shown in FIG. Immediate stabbing.

Second case: If the landing of the bullet on the target takes place with a small deceleration, the shear pin 41 is not sheared. Both sleeves 36 and 29 are moved forward against the force of spring 32 by the impact. The front sleeve 36 reaches its forwardmost position according to FIG.
After impact, the spring 32 is in a position to push the sleeve 29 back into its forward position according to FIG. Unhindered thereby, the firing pin 31 can rapidly move in the direction of piercing the detonator 40 by the force of the spring 32. The blocking body 34 is then directed by the bevel 37 of the sleeve 36 into the bore 33 of the firing pin 31, so that the firing pin 31 pierces the detonator 40 without being blocked until it impinges on the sleeve 36.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view of a bullet with a fuze, and FIGS. 2 to 4 are enlarged cross-sectional views of the fuse along the line - in FIG. 1 at various positions, i.e., FIG. Figure 3 shows the fuse when the bullet hits with a large deceleration, and Figure 4 shows the fuse after the bullet hits with a small deceleration. Symbols in the figure: 26...fuze part, 31...firing pin,
34...blocker, 40...detonator, 41...shear pin.

Claims (1)

[Scope of Claims] 1. A bottom-landing transmitter tube having a detonator, a mechanical delay device, and two inertia sleeves, the detonator being capable of being pierced from the back side of the fuze by a firing pin actuated by a spring force. , the mechanical delay device comprises a blocking body, a firing pin transverse hole, and an annular groove in the fuze section, and in the blocking position, the blocking body engages the firing pin transverse hole and the fuze section annular groove. The two inertia sleeves are arranged coaxially and one after the other with respect to the fuse part,
The inertial sleeve releases the blocking body after the impact deceleration has dissipated.In the bottom landing transmitter tube, the fixed position fuze section 26 is fixed in the fuze casing by a shear pin 41, thereby making it possible to release the blocking body after the impact deceleration has disappeared. The bottom landing transmitter tube is characterized in that during landing deceleration, the firing pin 31 pierces the detonator 40 without delay while being connected to the fuze portion 26 by the blocking body 34 in the blocking position.