JPH11248395A - Structure of cover in canister for missile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the structure of a cover in a canister for a missile which is arranged so that the cover consisting of an aluminum foil for airtightness may get equal film breakage property at discharge of a guided missile. SOLUTION: A stress concentration member 6 consisting of a band-shaped or string-shaped aluminum foil made of the same material as a cover 3 is stuck through an adhesive G to the roughly center of the cover 3. The work execution method for this stress concentration member 6 is as follows: the sticking face of the cover 3 consisting of an aluminum foil for airtightness is treated before bonding, and the stress concentration member 6 consisting of the aluminum foil made in the shape of a band or a string is stuck through an adhesive, and the adhesive is hardened. By making it in double structure, sticking the stress concentration member 6 crosswise to the roughly center of the cover 3, stress concentration occurs at the interface of the adhesive when the film breaks by the discharge of a guided missile 4, and the cover 3 is covered with a film along the film breakage line, and this canister can get equal film breakage property.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a lid structure of a missile canister, and more particularly, to a lid made of an airtight aluminum foil provided on the front side of a canister body when a guided bullet is fired. The present invention relates to a structure of a lid of a missile canister that is configured to be uniformly torn.

[0002]

2. Description of the Related Art Generally, a canister for a missile has a single lid 3 made of a thin aluminum foil for airtightness in front and rear openings 2a and 2b of a canister body 1 formed in a cylindrical shape as shown in FIG. When the guide bullet 4 is fired, it is fired while breaking the lid 3 made of airtight aluminum foil.

[0003]

However, the guide bomb 4
In order to prevent the lid 3 made of an airtight aluminum foil from being broken evenly at the time of firing, the infrared window 5
There is a problem that fragments of the thin film lid 3 may adhere to the cover and the operation of the infrared window 5 may be invalidated. SUMMARY OF THE INVENTION It is an object of the present invention to provide a structure of a lid for a missile canister in which a lid made of aluminum foil for airtightness can obtain a uniform rupture characteristic when a guided bullet is fired.

[0004]

According to the present invention, in order to achieve the above object, a stress concentration member for exhibiting uniform film rupture characteristics is provided on a part of the front and back surfaces of a lid made of an airtight aluminum foil. It is the gist. This invention is configured as described above, and a stress concentration member is provided on a part of the front and back surfaces of the lid so that the lid made of aluminum foil for airtightness can obtain uniform film rupture characteristics at the time of launching a guided bullet. By providing such a configuration, it is possible to prevent a problem that invalidates the operation of the infrared window of the guided bullet.

[0005]

Embodiments of the present invention will be described below with reference to the accompanying drawings. The same components as those of the conventional example are denoted by the same reference numerals, and description thereof will be omitted. FIG. 1 is a partial front view of a lid 3 made of an airtight aluminum foil provided in a front opening 2a of a canister body 1 showing a first embodiment of the present invention, and FIG. 2 is an AA arrow of FIG. In the first embodiment, a stress concentration member 6 made of a band-shaped or string-shaped aluminum foil made of the same material as the lid 3 is provided with a rubber-based adhesive G in a substantially central portion of the lid 3. It is pasted through.

[0006] The method of applying the stress concentration member 6 is as follows.
The bonding surface of the lid 3 made of an airtight aluminum foil is pre-bonded, and a stress concentration member 6 made of an aluminum foil formed in a predetermined band or string shape is pasted via an adhesive G to cure the adhesive. As described above, by forming the stress concentration member 6 in a cross shape substantially at the center of the lid 3 to form a two-layer structure, stress is generated at the interface P of the adhesive G when the film is broken by the firing of the guide bullet 4. Then, the lid 3 ruptures along the rupture line X as shown in FIG. 1, and uniform rupture characteristics can be obtained.

The stress concentrating member 6 is not limited to the above-mentioned aluminum foil of the same material as the lid 3, but may be a thin resin film in the form of a strip or string. The material is not particularly limited as long as stress can be concentrated on the surface of the lid 3 and uniform film rupture characteristics can be obtained, and furthermore, there is no limitation on the place where the lid 3 is attached.

As described above, the stress concentration member 6 is provided on a part of the front and back surfaces of the lid so that the lid 3 made of an airtight aluminum foil can obtain uniform film breaking characteristics when the guide bullet 4 is fired. With this arrangement, it is possible to prevent a problem that invalidates the operation of the infrared window of the guide bullet 4.

[0009]

As described above, according to the present invention, since a stress concentration member for exhibiting uniform film rupture characteristics is provided on a part of the front and back surfaces of the lid made of an aluminum foil for airtightness as described above, In this case, a uniform film rupture characteristic can be obtained at all times, and therefore, there is an effect that it is possible to prevent a problem that invalidates the operation of the infrared window of the guided bullet.

[Brief description of the drawings]

FIG. 1 is a partial front view of a lid made of an airtight aluminum foil provided in a front opening of a canister body according to a first embodiment of the present invention.

FIG. 2 is an enlarged sectional view taken along the line AA of FIG.

FIG. 3 is a schematic configuration diagram of a conventional missile canister.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Canister main body 2a, 2b Front and rear opening part 3 Lid 4 Guidance bullet 5 Infrared window 6 Stress concentration member X Film rupture line G Adhesive P Stress concentration point

Claims (3)

[Claims] 1. A lid structure for a missile canister in which a lid made of a thin-film airtight aluminum foil is provided in front and rear openings of a cylindrical canister body, wherein the lid made of the airtight aluminum foil is provided. Structure of a lid in a missile canister provided with a stress concentration member that exerts uniform film rupture characteristics on a part of the front and back surfaces. 2. The structure of a lid in a canister for a missile according to claim 1, wherein said stress concentration member is a string or a band-like member and is adhered along a center portion of the lid. 3. The lid structure of a missile canister according to claim 1, wherein the stress concentration member is at least the same band-shaped or string-shaped material as the lid.