JP2019089490A - Stage indirect hand structure of multistage type flight body, method for manufacture the same, and multistage type flight body - Google Patents

Stage indirect hand structure of multistage type flight body, method for manufacture the same, and multistage type flight body Download PDF

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JP2019089490A
JP2019089490A JP2017220369A JP2017220369A JP2019089490A JP 2019089490 A JP2019089490 A JP 2019089490A JP 2017220369 A JP2017220369 A JP 2017220369A JP 2017220369 A JP2017220369 A JP 2017220369A JP 2019089490 A JP2019089490 A JP 2019089490A
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stage
indirect hand
structural members
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columnar
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JP6925943B2 (en
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裕一 野口
Yuichi Noguchi
裕一 野口
泰伸 瀬川
Yasunobu Segawa
泰伸 瀬川
文男 武内
Fumio Takeuchi
文男 武内
大樹 河原
Daiki Kawahara
大樹 河原
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IHI Aerospace Co Ltd
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Abstract

To provide a stage indirect hand structure of a multistage type flight body excellent in productivity, a method for manufacture of the same, and a multistage type flight body.SOLUTION: A stage indirect hand structure of a first multistage type flight body is a stage indirect hand structure which joins a lower stage side structure 30 and an upper stage side structure 40 of the multistage type flight body, and comprises plural columnar structural members 10 and an outer shell member 20 comprising a heat-shrinkable sheet. The plural columnar structural members are located between the lower stage side structure and the upper stage side structure in a state that an axial direction of the columnar structural member and an axial direction of the multistage type flight body are parallel to each other, and at intervals along a circumferential direction of the lower stage side structure, and are fixed to the lower stage side structure and the upper stage side structure. The outer shell member comprising the heat-shrinkable sheet is so made as to be tightly adhered to the plural columnar structural members, and surrounds the plural columnar structural members.SELECTED DRAWING: Figure 1

Description

本発明は、多段式飛翔体の段間接手構造体、その製造方法及び多段式飛翔体に関する。   The present invention relates to a stage indirect hand structure of a multistage projectile, a manufacturing method thereof, and a multistage projectile.

従来、多段式飛翔体における段間は、ラティス円筒構造やスキンストリンガ構造、ハニカムサンドイッチ構造などの段間接手構造体によって結合されている。そして、このような段間接手構造体は、圧力変化や温度変化などの外部環境の変化から当該段間接手構造体で囲われた空間に搭載される機器類を保護する機能を有することもある。また、このような段間接手構造体は、軽量化を計るために、各段間において異なる荷重条件に対して専用の設計を行っており、結果として、各段間において異なる構造を採用することもある(非特許文献1参照。)。   Conventionally, the stages in the multistage projectile are connected by a stage indirect hand structure such as a lattice cylindrical structure, a skin stringer structure, or a honeycomb sandwich structure. And such a stage indirect hand structure may have a function to protect the equipment mounted in the space surrounded by the stage indirect hand structure from changes in the external environment such as pressure changes and temperature changes. . In addition, in order to reduce weight, such a stage indirect hand structure is specially designed for different load conditions among the stages, and as a result, different structures should be adopted between the stages. (See Non-Patent Document 1).

宇宙航空研究開発機構、「M−V型ロケット:5号機から8号機まで」、Technical Report、JAXA−SP−07−023、2008年2月29日Japan Aerospace Exploration Agency, "M-V rocket: 5 to 8", Technical Report, JAXA-SP-07-023, February 29, 2008

このように、非特許文献1に記載された段間接手構造体においては、段間接手構造体ごとに、専用治具や工具の作製、開発試験での性能検証が必要となり、複数種を生産する必要があるため、低コスト化を実現するための量産効果による生産性が低いという問題点があった。   As described above, in the stage indirect hand structure described in Non-Patent Document 1, it is necessary to prepare dedicated jigs and tools for each stage indirect hand structure and to verify the performance in development tests, and multiple types are produced. There is a problem that productivity is low due to the mass production effect to realize cost reduction.

本発明は、このような従来技術の有する課題に鑑みてなされたものである。そして、本発明は、生産性に優れた多段式飛翔体の段間接手構造体、その製造方法及び多段式飛翔体を提供することを目的とする。   The present invention has been made in view of the problems of the prior art. And an object of this invention is to provide the stage indirect hand structure of the multistage type flying object excellent in productivity, its manufacturing method, and a multistage type flying body.

本発明者らは、上記目的を達成するため鋭意検討を重ねた。その結果、所定の共通部材を組み合わせることなどにより、上記目的が達成できることを見出し、本発明を完成するに至った。   The present inventors diligently studied to achieve the above object. As a result, it has been found that the above object can be achieved by combining predetermined common members and the like, and the present invention has been completed.

すなわち、本発明の第1の多段式飛翔体の段間接手構造体は、多段式飛翔体の下段側構造体と上段側構造体とを接合する段間接手構造体であって、複数の柱状構造部材と、熱収縮シートからなる外殻部材と、を備えるものである。複数の柱状構造部材は、下段側構造体と上段側構造体との間において、柱状構造部材の軸方向と多段式飛翔体の機軸方向とが平行な状態で、かつ、下段側構造体の周方向に沿って間隔を設けて配置されており、かつ、下段側構造体及び上段側構造体に固定されている。熱収縮シートからなる外殻部材は、複数の柱状構造部材に密着した状態で、かつ、複数の柱状構造部材を包囲している。   That is, the stage indirect hand structure of the first multistage projectile according to the present invention is a stage indirect hand structure for joining the lower stage structure and the upper stage structure of the multistage projectile, and includes a plurality of pillars. A structural member and an outer shell member made of a heat shrinkable sheet are provided. The plurality of columnar structural members are arranged in such a manner that the axial direction of the columnar structural member and the axial direction of the multistage projectile body are parallel between the lower side structural body and the upper side structural body, and the periphery of the lower side structural body Spaces are provided along the direction, and fixed to the lower structure and the upper structure. The outer shell member made of the heat-shrinkable sheet is in close contact with the plurality of columnar structure members and surrounds the plurality of columnar structure members.

そして、本発明の第2の多段式飛翔体の段間接手構造体は、多段式飛翔体の下段側構造体と上段側構造体とを接合する段間接手構造体であって、複数の柱状構造部材と、熱収縮シートからなる外殻部材と、を備えるものである。複数の柱状構造部材は、下段側構造体と上段側構造体との間において、柱状構造部材の軸方向と多段式飛翔体の機軸方向とが平行な状態で、かつ、下段側構造体の周方向に沿って間隔を設けて配置されており、かつ、下段側構造体及び上段側構造体の少なくとも一方に固定されている。熱収縮シートからなる外殻部材は、複数の柱状構造部材と、下段側構造体及び上段側構造体の少なくとも他方の一部とに密着した状態で、かつ、複数の柱状構造部材と、下段側構造体及び上段側構造体の少なくとも他方の一部とを包囲している。   And, the stage indirect hand structure of the second multistage projectile according to the present invention is a stage indirect hand structure for joining the lower stage structure and the upper stage structure of the multistage projectile, which comprises a plurality of columns. A structural member and an outer shell member made of a heat shrinkable sheet are provided. The plurality of columnar structural members are arranged in such a manner that the axial direction of the columnar structural member and the axial direction of the multistage projectile body are parallel between the lower side structural body and the upper side structural body, and the periphery of the lower side structural body A space is provided along the direction, and fixed to at least one of the lower side structure and the upper side structure. The outer shell member made of the heat-shrinkable sheet is in close contact with the plurality of columnar structure members and at least one other of the lower side structure and the upper side structure, and the plurality of columnar structure members, and the lower side It encloses the structure and at least a part of the other of the upper side structure.

また、本発明の第1の多段式飛翔体の段間接手構造体の製造方法は、上記本発明の第1の多段式飛翔体の段間接手構造体を製造する方法であって、下記の工程(1A)及び(2A)を含む。工程(1A)は、下段側構造体と上段側構造体との間において、柱状構造部材の軸方向と多段式飛翔体の機軸方向とが平行な状態で、かつ、下段側構造体の周方向に沿って間隔を設けて、複数の柱状構造部材を配置し、かつ、複数の柱状構造部材を下段側構造体及び上段側構造体に固定する工程である。工程(2A)は、工程(1A)の後に実行され、熱収縮シートからなる外殻部材により複数の柱状構造部材を包囲し、熱収縮シートからなる外殻部材を複数の柱状構造部材に密着させる工程である。   Further, a first method of manufacturing a stage indirect hand structure of a multistage projectile according to the present invention is a method of manufacturing a stage indirect hand structure of the first multistage projectile according to the present invention, Steps (1A) and (2A) are included. In the step (1A), the axial direction of the columnar structural member and the axial direction of the multistage projectile member are parallel between the lower structure and the upper structure, and the circumferential direction of the lower structure is The plurality of columnar structural members are arranged at intervals along the distance, and the plurality of columnar structural members are fixed to the lower side structural body and the upper side structural body. The step (2A) is carried out after the step (1A), surrounding a plurality of columnar structural members by an outer shell member made of a heat-shrinkable sheet and adhering the outer shell member made of a heat-shrinkable sheet to the plurality of columnar structural members It is a process.

さらに、本発明の第2の多段式飛翔体の段間接手構造体の製造方法は、上記本発明の第2の多段式飛翔体の段間接手構造体を製造する方法であって、下記の工程(1B)及び(2B)を含む。工程(1B)は、下段側構造体と上段側構造体との間において、柱状構造部材の軸方向と多段式飛翔体の機軸方向とが平行な状態で、かつ、下段側構造体の周方向に沿って間隔を設けて、複数の柱状構造部材を配置し、かつ、下段側構造体及び上段側構造体の少なくとも一方に固定する工程である。工程(2B)は、工程(1B)の後に実行され、熱収縮シートからなる外殻部材により複数の柱状構造部材と、下段側構造体及び上段側構造体の少なくとも他方の一部を包囲し、熱収縮シートからなる外殻部材を複数の柱状構造部材に密着させる工程である。   Furthermore, a method of manufacturing a stage indirect hand structure of a second multistage projectile according to the present invention is a method of manufacturing a stage indirect hand structure of the second multistage projectile according to the present invention, Steps (1B) and (2B) are included. In the step (1B), the axial direction of the columnar structural member and the axial direction of the multistage projectile body are parallel between the lower stage structural body and the upper stage structural body, and the circumferential direction of the lower stage structural body And a plurality of columnar structural members are arranged at intervals along the length of the lower side structural body and fixed to at least one of the lower side structural body and the upper side structural body. The step (2B) is performed after the step (1B), and a plurality of columnar structural members and at least one other part of the lower side structural body and the upper side structural body are surrounded by a shell member made of a heat shrinkable sheet In this step, an outer shell member made of a heat-shrinkable sheet is brought into close contact with a plurality of columnar structural members.

また、本発明の多段式飛翔体は、下段構造部と上段構造部との間に段間接手構造部を備えた多段式飛翔体であって、段間接手構造部が、上記本発明の第1の多段式飛翔体の段間接手構造体を複数備えているものであるか、又は上記本発明の第2の多段式飛翔体の段間接手構造体を単数備えているものである。   The multistage projectile of the present invention is a multistage projectile having a stage indirect hand structure between the lower stage structure and the upper stage structure, wherein the stage indirect hand structure is the same as that of the above-mentioned invention of the present invention. A plurality of stage indirect hand structures of the multistage projectile of 1 are provided, or a single stage indirect hand structure of the second multistage projectile of the present invention is provided.

さらに、本発明の多段式飛翔体は、段間接手構造部が、上記本発明の第2の多段式飛翔体の段間接手構造体を単数備えており、下段側の段間接手構造体における柱状構造部材の数量よりも上段側の段間接手構造体における柱状構造部材の数量が少ないことが好ましい。   Furthermore, in the multistage projectile according to the present invention, the stage indirect hand structure portion includes a single stage indirect hand structure of the second multistage projectile according to the present invention, and in the lower stage side indirect hand structure. It is preferable that the number of columnar structural members in the step indirect hand structure on the upper side is smaller than the number of columnar structural members.

本発明によれば、生産性に優れた多段式飛翔体の段間接手構造体、その製造方法及び多段式飛翔体を提供することができる。   ADVANTAGE OF THE INVENTION According to this invention, the stage indirect hand structure of the multistage type flying object excellent in productivity, its manufacturing method, and a multistage type flying body can be provided.

図1は、第1実施形態に係る多段式飛翔体の段間接手構造体の模式的な分解斜視図である。FIG. 1 is a schematic exploded perspective view of a stage indirect hand structure of a multistage projectile according to a first embodiment. 図2は、第1実施形態に係る多段式飛翔体の段間接手構造体の模式的な斜視図である。FIG. 2 is a schematic perspective view of the stage indirect hand structure of the multistage projectile according to the first embodiment. 図3は、図2に示した段間接手構造体のIII−III線に沿った模式的な断面図である。FIG. 3 is a schematic cross-sectional view along the line III-III of the step indirect hand structure shown in FIG. 図4は、第2実施形態に係る多段式飛翔体の段間接手構造体の模式的な分解斜視図であるFIG. 4 is a schematic exploded perspective view of the stage indirect hand structure of the multistage projectile according to the second embodiment. 図5は、第2実施形態に係る多段式飛翔体の段間接手構造体の模式的な斜視図である。FIG. 5 is a schematic perspective view of a stage indirect hand structure of a multistage projectile according to a second embodiment. 図6は、図5に示した段間接手構造体のVI−VI線に沿った模式的な断面図である。FIG. 6 is a schematic cross-sectional view along the line VI-VI of the step indirect hand structure shown in FIG. 図7は、第3実施形態に係る多段式飛翔体の一例の一部を示す模式的な斜視図である。FIG. 7 is a schematic perspective view showing a part of an example of the multistage flying object according to the third embodiment. 図8は、第3実施形態に係る多段式飛翔体の他の一例の一部を示す模式的な斜視図である。FIG. 8 is a schematic perspective view showing a part of another example of the multistage projectile according to the third embodiment.

以下、本発明の一実施形態に係る多段式飛翔体の段間接手構造体、多段式飛翔体の段間接手構造体の製造方法及び多段式飛翔体について詳細に説明する。   Hereinafter, the stage indirect hand structure of the multistage projectile according to one embodiment of the present invention, the method of manufacturing the stage indirect hand structure of the multistage projectile, and the multistage projectile will be described in detail.

(第1実施形態)
まず、第1実施形態に係る多段式飛翔体の段間接手構造体について図面を参照しながら詳細に説明する。なお、以下の実施形態において、説明の便宜上、多段式飛翔体の一方の構造体を「下段側構造体」、他方の構造体を「上段側構造体」、これに応じて、多段式飛翔体の一方の構造部を「下段構造部」、他方の構造部を「上段構造部」などと記載するが、これらは、多段式飛翔体の所定の位置に取り付けられるまでは等価な要素であり、相互に置換した構成も本発明の範囲に含まれることは言うまでもない。また、引用する図面の寸法比率は、説明の便宜上誇張されており、実際の比率とは異なる場合がある。
First Embodiment
First, the step indirect hand structure of the multistage projectile according to the first embodiment will be described in detail with reference to the drawings. In the following embodiments, for convenience of explanation, one structure of the multistage projectile is “lower stage structure”, the other structure is “upper stage structure”, and accordingly, the multistage projectile One structural part is described as “lower structure part” and the other structural part is described as “upper structure part” etc., but these are equivalent elements until they are attached to the predetermined position of the multistage projectile, It goes without saying that mutually replaced configurations are also included in the scope of the present invention. Also, the dimensional proportions of the drawings referred to are exaggerated for the convenience of the description, and may differ from the actual proportions.

図1は、第1実施形態に係る多段式飛翔体の段間接手構造体の模式的な分解斜視図である。また、図2は、第1実施形態に係る多段式飛翔体の段間接手構造体の模式的な斜視図である。さらに、図3は、図2に示した段間接手構造体のIII−III線に沿った模式的な断面図である。   FIG. 1 is a schematic exploded perspective view of a stage indirect hand structure of a multistage projectile according to a first embodiment. FIG. 2 is a schematic perspective view of the stage indirect hand structure of the multistage projectile according to the first embodiment. Furthermore, FIG. 3 is a schematic cross-sectional view along the line III-III of the step indirect hand structure shown in FIG.

図1〜図3に示すように、第1実施形態の多段式飛翔体の段間接手構造体1は、多段式飛翔体の下段側構造体30と上段側構造体40とを接合するものである。段間接手構造体1は、複数の柱状構造部材10と外殻部材20とを備えている。ここで、外殻部材20は、熱収縮シートからなる。なお、特に限定されるものではないが、図示例においては、柱状構造部材の数量は8本である。   As shown in FIGS. 1 to 3, the stage indirect hand structure 1 of the multistage projectile according to the first embodiment joins the lower stage structure 30 and the upper stage structure 40 of the multistage projectile. is there. The step indirect hand structure 1 includes a plurality of columnar structural members 10 and an outer shell member 20. Here, the outer shell member 20 is made of a heat shrinkable sheet. Although not particularly limited, in the illustrated example, the number of columnar structural members is eight.

また、複数の柱状構造部材10は、下段側構造体30と上段側構造体40との間において、柱状構造部材10の軸方向と図中矢印Zで示す多段式飛翔体の機軸方向とが平行な状態で、かつ、下段側構造体30の周方向に沿って間隔を設けて配置されており、かつ、下段側構造体30及び上段側構造体40に固定されている。   Further, in the plurality of columnar structural members 10, the axial direction of the columnar structural member 10 and the axial direction of the multistage projectile shown by the arrow Z in the figure are parallel between the lower side structural body 30 and the upper side structural body 40. In the state, the space is arranged along the circumferential direction of the lower structure 30, and is fixed to the lower structure 30 and the upper structure 40.

さらに、外殻部材20は、複数の柱状構造部材10に密着した状態で、かつ、複数の柱状構造部材10を包囲している。   Further, the outer shell member 20 is in close contact with the plurality of columnar structural members 10 and surrounds the plurality of columnar structural members 10.

このように、柱状構造部材と熱収縮シートからなる外殻部材といった所定の共通部材を組み合わせて段間接手構造体を組み立てることにより、段間接手構造体ごとに、専用治具や工具の作製、開発試験での性能検証が必要でない。また、多段式飛翔体の大きさ等によって荷重条件が変わっても柱状構造部材の数を変えることで対応できる。したがって、低コスト化を実現するための量産効果による生産性に優れた多段式飛翔体の段間接手構造体を提供することができる。   As described above, by assembling the step indirect hand structure by combining predetermined common members such as the outer shell member including the columnar structural member and the heat-shrinkable sheet, a dedicated jig or tool is produced for each step indirect hand structure. There is no need for performance verification in development tests. Further, even if the load condition changes depending on the size of the multistage projectile, etc., it can be coped with by changing the number of columnar structural members. Therefore, it is possible to provide a stage indirect hand structure of a multistage projectile excellent in productivity by mass production effect to realize cost reduction.

また、特に限定されるものではないが、このような多段式飛翔体の段間接手構造体は、詳しくは後述するが、複数の多段式飛翔体の段間接手構造体を組み合わせた段間接手構造部において、分離機構を設けることができる。   Also, although not particularly limited, such a stage indirect hand structure of multistage projectiles will be described in detail later, but a stage indirect hand combining a plurality of multistage projectile stage indirect hand structures is described. In the structure, a separating mechanism can be provided.

ここで、各構成について更に詳細に説明する。   Here, each configuration will be described in more detail.

上記柱状構造部材10としては、アルミニウム合金、ニッケル・クロム・モリブデン鋼、複合材などの従来公知の合金鋼などを適用することができる。また、特に限定されるものではないが、柱状構造部材は、断面形状が円形であることが好ましい。   As the columnar structural member 10, conventionally known alloy steels such as an aluminum alloy, a nickel-chromium-molybdenum steel, and a composite material can be applied. Further, although not particularly limited, it is preferable that the columnar structural member has a circular cross-sectional shape.

上記外殻部材20は、熱収縮シートからなるものである。特に限定されるものではないが、熱収縮シートとしては、例えば、架橋ポリエチレンからなるものを挙げることができる。また、特に限定されるものではないが、熱収縮シートの内周側には、粘着層を有していてもよい。このような粘着層としては、例えば、ブチルゴムをベースとしたものを挙げることができる。特に限定されるものではないが、具体的には、古河電気工業株式会社製のラプコ(登録商標)シート、ラプコ(登録商標)チューブなどを利用することができる。なお、更なる耐熱性を必要とする場合には、熱収縮シートからなる外殻部材の外周側にコルクなどの断熱部材を設けてもよい。   The outer shell member 20 is made of a heat shrinkable sheet. Although it does not specifically limit, as a heat shrinkable sheet, what consists of bridge | crosslinking polyethylene can be mentioned, for example. Moreover, although it does not specifically limit, you may have an adhesion layer in the inner peripheral side of a heat shrinkable sheet. As such an adhesive layer, what was based on butyl rubber can be mentioned, for example. Although not particularly limited, specifically, Lapco (registered trademark) sheet manufactured by Furukawa Electric Co., Ltd., Lapco (registered trademark) tube, and the like can be used. If further heat resistance is required, a heat insulating member such as cork may be provided on the outer peripheral side of the outer shell member made of a heat-shrinkable sheet.

上記下段側構造体30及び上段側構造体40としては、従来公知の合金鋼などを適用することができる。また、特に限定されるものではないが、下段側構造体及び上段側構造体は、断面形状が円環形であることが好ましい。なお、下段側構造体及び上段側構造体が、それぞれ下段構造部自体及び上段構造部自体であってもよく、また、それぞれ下段構造部の取り付け部及び上段構造部の取り付け部であってもよい。さらに、これらに限定されるものではなく、下段側構造体及び上段側構造体が、それぞれ下段構造部自体及び上段構造部の取り付け部であってもよく、その逆であってもよい。   A conventionally known alloy steel or the like can be applied as the lower stage structural body 30 and the upper stage side structural body 40. In addition, although not particularly limited, it is preferable that the lower side structure and the upper side structure have an annular shape in cross section. The lower structure and the upper structure may be respectively the lower structure itself and the upper structure itself, or may be the mounting portion of the lower structure and the mounting portion of the upper structure. . Furthermore, the present invention is not limited thereto, and the lower structure and the upper structure may be attachment portions of the lower structure itself and the upper structure, respectively, or vice versa.

次いで、上記第1実施形態に係る多段式飛翔体の段間接手構造体の製造方法について一例を挙げて具体的に説明する。なお、上記第1実施形態に係る多段式飛翔体の段間接手構造体は、後述する製造方法によって得られたものに限定されるものではない。   Next, a method of manufacturing the stage indirect hand structure of the multistage projectile according to the first embodiment will be specifically described by way of an example. The stage indirect hand structure of the multistage projectile according to the first embodiment is not limited to the one obtained by the manufacturing method described later.

上記第1実施形態に係る多段式飛翔体の段間接手構造体の製造方法は、下記の工程(1A)及び(2A)を含む。   The method of manufacturing the stage indirect hand structure of the multistage projectile according to the first embodiment includes the following steps (1A) and (2A).

工程(1A)は、下段側構造体と上段側構造体との間において、柱状構造部材の軸方向と多段式飛翔体の機軸方向とが平行な状態で、かつ、下段側構造体の周方向に沿って間隔を設けて、複数の柱状構造部材を配置し、かつ、複数の柱状構造部材を下段側構造体及び上段側構造体に固定する工程である。特に限定されるものではないが、具体的には、柱状構造部材を、下段構造部自体や下段構造部の取り付け部、上段構造部自体や上段構造部の取り付け部などにフランジやボルトなどを用いた従来公知の固定具で固定する。   In the step (1A), the axial direction of the columnar structural member and the axial direction of the multistage projectile member are parallel between the lower structure and the upper structure, and the circumferential direction of the lower structure is The plurality of columnar structural members are arranged at intervals along the distance, and the plurality of columnar structural members are fixed to the lower side structural body and the upper side structural body. Although not particularly limited, specifically, for the columnar structure member, a flange or a bolt is used for the lower structure portion itself, the mounting portion of the lower structure portion, the mounting portion of the upper structure portion itself or the upper structure portion, etc. It fixes with the conventionally well-known fixing tool.

工程(2A)は、工程(1A)の後に実行され、熱収縮シートからなる外殻部材により複数の柱状構造部材を包囲し、熱収縮シートからなる外殻部材を複数の柱状構造部材に密着させる工程である。特に限定されるものではないが、具体的には、複数の柱状構造部材を包囲する位置に熱収縮シートを配置し、熱収縮シートの外周側からバーナなどを用いて加熱することにより収縮させて、熱収縮シートからなる外殻部材を複数の柱状構造部材に密着させる。なお、柱状構造部材を下段構造部自体や下段構造部の取り付け部、上段構造部自体や上段構造部の取り付け部などに固定した結果、熱収縮シートを複数の柱状構造部材を包囲する位置に配置できない場合には、柱状構造部材を下段構造部自体や下段構造部の取り付け部、上段構造部自体や上段構造部の取り付け部などに固定する前に、これらの位置に熱収縮シートを挿入しておくことが好ましい。   The step (2A) is carried out after the step (1A), surrounding a plurality of columnar structural members by an outer shell member made of a heat-shrinkable sheet and adhering the outer shell member made of a heat-shrinkable sheet to the plurality of columnar structural members It is a process. Although not particularly limited, specifically, a heat-shrinkable sheet is disposed at a position surrounding a plurality of columnar structural members, and is shrunk by heating from the outer peripheral side of the heat-shrinkable sheet using a burner or the like. The outer shell member made of a heat-shrinkable sheet is brought into close contact with the plurality of columnar structural members. In addition, as a result of fixing the columnar structural member to the lower structural portion itself, the mounting portion of the lower structural portion, the upper structural portion itself, the mounting portion of the upper structural portion, etc., the heat shrinkable sheet is disposed at a position surrounding a plurality of columnar structural members. If it is not possible, insert a heat-shrinkable sheet at these positions before fixing the columnar structural member to the lower structure part itself, the attachment part of the lower structure part, or the upper structure part itself or the attachment part of the upper structure part. Is preferable.

このように、柱状構造部材と熱収縮シートからなる外殻部材といった所定の共通部材を組み合わせて段間接手構造体を組み立てることにより、段間接手構造体ごとに、専用治具や工具の作製、開発試験での性能検証が必要でない。また、多段式飛翔体の大きさ等によって荷重条件が変わっても柱状構造部材の数を変えることで対応できる。したがって、低コスト化を実現するための量産効果による生産性に優れた多段式飛翔体の段間接手構造体の製造方法を提供することができる。   As described above, by assembling the step indirect hand structure by combining predetermined common members such as the outer shell member including the columnar structural member and the heat-shrinkable sheet, a dedicated jig or tool is produced for each step indirect hand structure. There is no need for performance verification in development tests. Further, even if the load condition changes depending on the size of the multistage projectile, etc., it can be coped with by changing the number of columnar structural members. Therefore, it is possible to provide a method of manufacturing a multistage flying object stage indirect hand structure excellent in productivity by mass production effect to realize cost reduction.

(第2実施形態)
次に、第2実施形態に係る多段式飛翔体の段間接手構造体について図面を参照しながら詳細に説明する。図4は、第2実施形態に係る多段式飛翔体の段間接手構造体の模式的な分解斜視図である。また、図5は、第2実施形態に係る多段式飛翔体の段間接手構造体の模式的な斜視図である。さらに、図6は、図5に示した段間接手構造体のVI−VI線に沿った模式的な断面図である。なお、上記説明したものと同等のものについては、それらと同一の符号を付して説明を省略する。
Second Embodiment
Next, a stage indirect hand structure of a multistage projectile according to a second embodiment will be described in detail with reference to the drawings. FIG. 4 is a schematic exploded perspective view of the stage indirect hand structure of the multistage projectile according to the second embodiment. FIG. 5 is a schematic perspective view of a stage indirect hand structure of a multistage projectile according to a second embodiment. Furthermore, FIG. 6 is a schematic cross-sectional view along the line VI-VI of the step indirect hand structure shown in FIG. In addition, about the thing equivalent to the thing demonstrated above, the code | symbol same as them is attached | subjected and description is abbreviate | omitted.

図4〜図6に示すように、第2実施形態の多段式飛翔体の段間接手構造体1’は、多段式飛翔体の下段側構造体30と上段側構造体40とを接合するものである。段間接手構造体1’は、複数の柱状構造部材10と外殻部材20とを備えている。ここで、外殻部材20は、熱収縮シートからなる。なお、特に限定されるものではないが、図示例においては、柱状構造部材の数量は8本である。   As shown in FIGS. 4 to 6, the stage indirect hand structure 1 'of the multistage projectile according to the second embodiment joins the lower stage structure 30 and the upper stage structure 40 of the multistage projectile. It is. The step indirect hand structure 1 ′ includes a plurality of columnar structural members 10 and an outer shell member 20. Here, the outer shell member 20 is made of a heat shrinkable sheet. Although not particularly limited, in the illustrated example, the number of columnar structural members is eight.

また、複数の柱状構造部材10は、下段側構造体30と上段側構造体40との間において、柱状構造部材10の軸方向と図中矢印Zで示す多段式飛翔体の機軸方向とが平行な状態で、かつ、下段側構造体30の周方向に沿って間隔を設けて配置されており、かつ、下段側構造体30及び上段側構造体40に固定されている。   Further, in the plurality of columnar structural members 10, the axial direction of the columnar structural member 10 and the axial direction of the multistage projectile shown by the arrow Z in the figure are parallel between the lower side structural body 30 and the upper side structural body 40. In the state, the space is arranged along the circumferential direction of the lower structure 30, and is fixed to the lower structure 30 and the upper structure 40.

さらに、外殻部材20は、複数の柱状構造部材10と、下段側構造体30及び上段側構造体40の少なくともどちらかを包囲している。   Furthermore, the outer shell member 20 surrounds at least one of the plurality of columnar structural members 10 and the lower side structural body 30 and the upper side structural body 40.

このように、柱状構造部材と熱収縮シートからなる外殻部材といった所定の共通部材を組み合わせて段間接手構造体を組み立てることにより、段間接手構造体ごとに、専用治具や工具の作製、開発試験での性能検証が必要でない。また、多段式飛翔体の大きさ等によって荷重条件が変わっても柱状構造部材の数を変えることで対応できる。したがって、低コスト化を実現するための量産効果による生産性に優れた多段式飛翔体の段間接手構造体を提供することができる。また、特に限定されるものではないが、このような多段式飛翔体の段間接手構造体は、詳しくは後述するが、単数の多段式飛翔体の段間接手構造体からなる段間接手構造部において、分離機構を設けることができる。   As described above, by assembling the step indirect hand structure by combining predetermined common members such as the outer shell member including the columnar structural member and the heat-shrinkable sheet, a dedicated jig or tool is produced for each step indirect hand structure. There is no need for performance verification in development tests. Further, even if the load condition changes depending on the size of the multistage projectile, etc., it can be coped with by changing the number of columnar structural members. Therefore, it is possible to provide a stage indirect hand structure of a multistage projectile excellent in productivity by mass production effect to realize cost reduction. Also, although not particularly limited, such a stage indirect hand structure of multistage projectiles will be described in detail later, but a stage indirect hand structure comprising a single stage multistage projectile indirect hand structure In parts, separation mechanisms can be provided.

次いで、上記第2実施形態に係る多段式飛翔体の段間接手構造体の製造方法について一例を挙げて具体的に説明する。なお、上記第2実施形態に係る多段式飛翔体の段間接手構造体は、後述する製造方法によって得られたものに限定されるものではない。   Next, a method of manufacturing the stage indirect hand structure of the multistage projectile according to the second embodiment will be specifically described by way of an example. The stage indirect hand structure of the multistage projectile according to the second embodiment is not limited to the one obtained by the manufacturing method described later.

上記第2実施形態に係る多段式飛翔体の段間接手構造体の製造方法は、下記の工程(1B)及び(2B)を含む。   The manufacturing method of the stage indirect hand structure of the multistage projectile according to the second embodiment includes the following steps (1B) and (2B).

工程(1B)は、下段側構造体と上段側構造体との間において、柱状構造部材の軸方向と多段式飛翔体の機軸方向とが平行な状態で、かつ、下段側構造体の周方向に沿って間隔を設けて、複数の柱状構造部材を配置し、かつ、下段側構造体及び上段側構造体の一方に固定する工程である。特に限定されるものではないが、具体的には、柱状構造部材を、下段構造部自体や下段構造部の取り付け部、上段構造部自体や上段構造部の取り付け部などにフランジやボルトなどを用いた従来公知の固定具で固定する。   In the step (1B), the axial direction of the columnar structural member and the axial direction of the multistage projectile body are parallel between the lower stage structural body and the upper stage structural body, and the circumferential direction of the lower stage structural body And a plurality of columnar structural members are arranged at intervals along the length of the lower side structural body and fixed to one of the lower side structural body and the upper side structural body. Although not particularly limited, specifically, for the columnar structure member, a flange or a bolt is used for the lower structure portion itself, the mounting portion of the lower structure portion, the mounting portion of the upper structure portion itself or the upper structure portion, etc. It fixes with the conventionally well-known fixing tool.

工程(2B)は、工程(1B)の後に実行され、熱収縮シートからなる外殻部材により複数の柱状構造部材と、下段側構造体及び上段側構造体の少なくとも他方の一部を包囲し、熱収縮シートからなる外殻部材を複数の柱状構造部材に密着させる工程である。なお、柱状構造部材を下段構造部自体や下段構造部の取り付け部、上段構造部自体や上段構造部の取り付け部などに固定した結果、熱収縮シートを複数の柱状構造部材を包囲する位置に配置できない場合には、柱状構造部材を下段構造部自体や下段構造部の取り付け部、上段構造部自体や上段構造部の取り付け部などに固定する前に、これらの位置に熱収縮シートを挿入しておくことが好ましい。   The step (2B) is performed after the step (1B), and a plurality of columnar structural members and at least one other part of the lower side structural body and the upper side structural body are surrounded by a shell member made of a heat shrinkable sheet In this step, an outer shell member made of a heat-shrinkable sheet is brought into close contact with a plurality of columnar structural members. In addition, as a result of fixing the columnar structural member to the lower structural portion itself, the mounting portion of the lower structural portion, the upper structural portion itself, the mounting portion of the upper structural portion, etc., the heat shrinkable sheet is disposed at a position surrounding a plurality of columnar structural members. If it is not possible, insert a heat-shrinkable sheet at these positions before fixing the columnar structural member to the lower structure part itself, the attachment part of the lower structure part, or the upper structure part itself or the attachment part of the upper structure part. Is preferable.

このように、柱状構造部材と熱収縮シートからなる外殻部材といった所定の共通部材を組み合わせて段間接手構造体を組み立てることにより、段間接手構造体ごとに、専用治具や工具の作製、開発試験での性能検証が必要でない。また、多段式飛翔体の大きさ等によって荷重条件が変わっても柱状構造部材の数を変えることで対応できる。したがって、低コスト化を実現するための量産効果による生産性に優れた多段式飛翔体の段間接手構造体の製造方法を提供することができる。   As described above, by assembling the step indirect hand structure by combining predetermined common members such as the outer shell member including the columnar structural member and the heat-shrinkable sheet, a dedicated jig or tool is produced for each step indirect hand structure. There is no need for performance verification in development tests. Further, even if the load condition changes depending on the size of the multistage projectile, etc., it can be coped with by changing the number of columnar structural members. Therefore, it is possible to provide a method of manufacturing a multistage flying object stage indirect hand structure excellent in productivity by mass production effect to realize cost reduction.

(第3実施形態)
次に、第3実施形態に係る多段式飛翔体について図面を参照しながら詳細に説明する。図7は、第3実施形態に係る多段式飛翔体の一例の一部を示す模式的な斜視図である。また、図8は、第3実施形態に係る多段式飛翔体の他の一例の一部を示す模式的な斜視図である。なお、上記説明したものと同等のものについては、それらと同一の符号を付して説明を省略する。
Third Embodiment
Next, a multistage projectile according to a third embodiment will be described in detail with reference to the drawings. FIG. 7 is a schematic perspective view showing a part of an example of the multistage flying object according to the third embodiment. FIG. 8 is a schematic perspective view showing a part of another example of the multistage flying object according to the third embodiment. In addition, about the thing equivalent to the thing demonstrated above, the code | symbol same as them is attached | subjected and description is abbreviate | omitted.

図7に示すように、多段式飛翔体100は、下段構造部30と上段構造部40との間に段間接手構造部を備えている。そして、段間接手構造部は、上記多段式飛翔体の段間接手構造体1を複数備えている。ここで、段間接手構造体1,1間には、FLSC接手などの従来公知の分離機構50を備えている。なお、特に限定されるものではないが、図示例においては、段間接手構造体の数量は2個である。   As shown in FIG. 7, the multistage projectile 100 includes a stage indirect hand structure between the lower stage structure 30 and the upper stage structure 40. And a stage indirect hand structure part is equipped with multiple stage indirect hand structures 1 of the said multistage type flying object. Here, a conventionally known separation mechanism 50 such as an FLSC joint is provided between the step indirect hand structure 1 and 1. Although not particularly limited, in the illustrated example, the number of stage indirect hand structures is two.

また、図8に示すように、多段式飛翔体100’は、下段構造部30と上段構造部40との間に段間接手構造部を備えている。そして、段間接手構造部は、上記多段式飛翔体の段間接手構造体1’を単数備えている。ここで、段間接手構造体1’と上段構造部40の間には、FLSC接手などの従来公知の分離機構50を備えている。   In addition, as shown in FIG. 8, the multistage flying object 100 ′ includes a stage indirect hand structure between the lower stage structure 30 and the upper stage structure 40. Further, the stage indirect hand structure portion includes a single stage indirect hand structure 1 'of the multistage projectile. Here, a conventionally known separation mechanism 50 such as an FLSC joint is provided between the stage indirect hand structure 1 ′ and the upper stage structure 40.

上述のように、柱状構造部材と熱収縮シートからなる外殻部材といった所定の共通部材を組み合わせて製造した段間接手構造体を用いることにより、段間接手構造体ごとに、専用治具や工具の作製、開発試験での性能検証が必要でない。また、多段式飛翔体の大きさ等によって荷重条件が変わっても柱状構造部材の数を変えることで対応できる。したがって、低コスト化を実現するための量産効果による生産性に優れた多段式飛翔体を提供することができる。   As described above, by using a step indirect hand structure manufactured by combining a predetermined common member such as a shell member consisting of a columnar structural member and a heat-shrinkable sheet, a dedicated jig or tool is provided for each step indirect hand structure. There is no need for performance verification in the preparation and development tests of Further, even if the load condition changes depending on the size of the multistage projectile, etc., it can be coped with by changing the number of columnar structural members. Therefore, it is possible to provide a multistage projectile excellent in productivity by mass production effect to realize cost reduction.

また、特に限定されるものではないが、第3実施形態の多段式飛翔体は、図示しないが、上段構造部に残る段間接手構造体を小さくする必要がある場合には、段間接手構造部を構成し、直接連結される段間接手構造体の数量を増やし、かつ、段間接手構造部における分離機構の位置を上段側にすればよい。   Although not particularly limited, although the multistage flying object of the third embodiment is not shown, when it is necessary to reduce the size of the stage indirect hand structure remaining in the upper stage structure, the stage indirect hand structure The number of the stage indirect hand structure to be directly connected may be increased, and the position of the separation mechanism in the stage indirect hand structure may be on the upper side.

さらに、第3実施形態の多段式飛翔体は、図示しないが、下段側の段間接手構造体における柱状構造部材の数量よりも上段側の段間接手構造体における柱状構造部材の数量が少ないことが好ましい。特に限定されるものではないが、例えば、下段側の段間接手構造体における柱状構造部材の数量を8本とし、上段側の段間接手構造体における柱状構造部材の数量を6本のようにすることができる。   Furthermore, in the multistage projectile of the third embodiment, although not shown, the number of columnar structural members in the upper stage indirect hand structure is smaller than the number of columnar structural members in the lower stage indirect hand structure. Is preferred. Although not particularly limited, for example, the number of columnar structural members in the lower-stage step indirect hand structure is eight, and the number of columnar structural members in the upper-step stage indirect hand structure is six, for example. can do.

段間接手構造体にかかる荷重は、多段式飛翔体の下段側の段間接手構造体にかかる荷重よりも上段側の段間接手構造体にかかる荷重の方が小さい。この荷重条件に大小関係に応じて荷重を負担する柱状構造部材を調整する際に、柱状構造部材と熱収縮シートからなる外殻部材といった所定の共通部材を組み合わせにおいて、柱状構造部材の数量を調整して製造した段間接手構造体を用いることにより、柱状構造部材の太さ(径)を調整する場合と比較して、段間接手構造体ごとに、専用治具や工具の作製、開発試験での性能検証が必要でなく、低コスト化を実現するための量産効果による生産性に優れた多段式飛翔体を提供することができる。   Regarding the load applied to the stage indirect hand structure, the load applied to the upper stage indirect hand structure is smaller than the load applied to the lower stage side indirect hand structure of the multistage projectile. When adjusting a columnar structural member that bears the load according to the magnitude relationship with this load condition, the number of columnar structural members is adjusted by combining predetermined common members such as an outer shell member made of a columnar structural member and a heat-shrinkable sheet In comparison with the case of adjusting the thickness (diameter) of the columnar structural member by using the stage indirect hand structure manufactured by the above method, preparation of a dedicated jig or tool for each stage indirect hand structure, development test Thus, it is possible to provide a multistage projectile excellent in productivity by mass production effect for realizing cost reduction without the need for performance verification in

以上、本発明を若干の実施形態及び実施例によって説明したが、本発明はこれらに限定されるものではなく、本発明の要旨の範囲内で種々の変形が可能である。   Although the present invention has been described above by some embodiments and examples, the present invention is not limited to these, and various modifications can be made within the scope of the present invention.

1,1’ 段間接手構造体(段間接手構造部)
10 柱状構造部材
20 外殻部材
30 下段側構造体(下段構造部)
40 上段側構造体(上段構造部)
50 分離機構
100,100’ 多段式飛翔体
1,1 stage indirect hand structure (stage indirect hand structure part)
10 Column-shaped structural member 20 Outer shell member 30 Lower side structure (lower structure)
40 Upper structure (upper structure)
50 Separation mechanism 100, 100 'multi-stage flight vehicle

Claims (6)

多段式飛翔体の下段側構造体と上段側構造体とを接合する段間接手構造体であって、
複数の柱状構造部材と、
熱収縮シートからなる外殻部材と、を備え、
上記複数の柱状構造部材は、上記下段側構造体と上記上段側構造体との間において、該柱状構造部材の軸方向と上記多段式飛翔体の機軸方向とが平行な状態で、かつ、該下段側構造体の周方向に沿って間隔を設けて配置されており、かつ、上記下段側構造体及び上記上段側構造体に固定されており、
上記熱収縮シートからなる外殻部材は、上記複数の柱状構造部材に密着した状態で、かつ、該複数の柱状構造部材を包囲している
ことを特徴とする多段式飛翔体の段間接手構造体。
A stage indirect hand structure for joining a lower stage structure and a upper stage structure of a multistage projectile,
A plurality of columnar structural members,
And a shell member made of a heat-shrinkable sheet,
The plurality of columnar structural members are arranged such that the axial direction of the columnar structural member and the axial direction of the multistage projectile body are parallel between the lower stage structural body and the upper stage side structural body. It is disposed at intervals along the circumferential direction of the lower side structure, and is fixed to the lower side structure and the upper side structure,
The shell member formed of the heat-shrinkable sheet is in close contact with the plurality of columnar structural members, and surrounds the plurality of columnar structural members. body.
多段式飛翔体の下段側構造体と上段側構造体とを接合する段間接手構造体であって、
複数の柱状構造部材と、
熱収縮シートからなる外殻部材と、を備え、
上記複数の柱状構造部材は、上記下段側構造体と上記上段側構造体との間において、該柱状構造部材の軸方向と上記多段式飛翔体の機軸方向とが平行な状態で、かつ、該下段側構造体の周方向に沿って間隔を設けて配置されており、かつ、上記下段側構造体及び上記上段側構造体の少なくとも一方に固定されており、
上記熱収縮シートからなる外殻部材は、上記複数の柱状構造部材と、上記下段側構造体及び上記上段側構造体の少なくとも他方の一部とに密着した状態で、かつ、該複数の柱状構造部材と、該下段側構造体及び該上段側構造体の少なくとも他方の一部とを包囲している
ことを特徴とする多段式飛翔体の段間接手構造体。
A stage indirect hand structure for joining a lower stage structure and a upper stage structure of a multistage projectile,
A plurality of columnar structural members,
And a shell member made of a heat-shrinkable sheet,
The plurality of columnar structural members are arranged such that the axial direction of the columnar structural member and the axial direction of the multistage projectile body are parallel between the lower stage structural body and the upper stage side structural body. A space is provided along the circumferential direction of the lower side structure, and is fixed to at least one of the lower side structure and the upper side structure.
The outer shell member made of the heat-shrinkable sheet is in close contact with the plurality of columnar structural members and at least a portion of the other of the lower side structural body and the upper stage side structural body, and the plurality of columnar structures A stage indirect hand structure for a multistage projectile, comprising: a member; and a part of at least another of the lower side structure and the upper side structure.
下段構造部と上段構造部との間に段間接手構造部を備えた多段式飛翔体であって、
上記段間接手構造部が、請求項1に記載の多段式飛翔体の段間接手構造体を複数備えているか又は請求項2に記載の多段式飛翔体の段間接手構造体を単数備えている
ことを特徴とする多段式飛翔体。
A multistage projectile having a stage indirect hand structure between a lower stage structure and an upper stage structure,
The stage indirect hand structure portion includes a plurality of stage indirect hand structures of the multistage projectile according to claim 1 or a single stage indirect hand structure of the multistage projectile according to claim 2 Multistage projectile characterized in that
下段構造部と上段構造部との間に段間接手構造部を備えた多段式飛翔体であって、
上記段間接手構造部が、請求項2に記載の多段式飛翔体の段間接手構造体を単数備えており、
下段側の上記段間接手構造体における上記柱状構造部材の数量よりも上段側の上記段間接手構造体における上記柱状構造部材の数量が少ない
ことを特徴とする多段式飛翔体。
A multistage projectile having a stage indirect hand structure between a lower stage structure and an upper stage structure,
The stage indirect hand structure unit includes a single stage indirect hand structure of the multistage projectile according to claim 2;
A multistage projectile characterized in that the number of columnar structural members in the upper stage indirect hand structure is smaller than the number of columnar structural members in the lower stage indirect hand structure.
請求項1に記載の多段式飛翔体の段間接手構造体の製造方法であって、
上記下段側構造体と上記上段側構造体との間において、上記柱状構造部材の軸方向と上記多段式飛翔体の機軸方向とが平行な状態で、かつ、該下段側構造体の周方向に沿って間隔を設けて、上記複数の柱状構造部材を配置し、かつ、該複数の柱状構造部材を該下段側構造体及び該上段側構造体に固定する工程(1A)と、
上記工程(1A)の後に実行され、上記熱収縮シートからなる外殻部材により上記複数の柱状構造部材を包囲し、該熱収縮シートからなる外殻部材を該複数の柱状構造部材に密着させる工程(2A)と、を含む
ことを特徴とする多段式飛翔体の段間接手構造体の製造方法。
A method of manufacturing a stage indirect hand structure of a multistage projectile according to claim 1, comprising:
Between the lower stage structure and the upper stage structure, the axial direction of the columnar structural member is parallel to the axial direction of the multistage projectile, and in the circumferential direction of the lower stage structure. And (1A) disposing a plurality of columnar structural members at intervals along the distance, and fixing the plurality of columnar structural members to the lower side structural body and the upper stage side structural body;
A step of surrounding the plurality of columnar structural members by the outer shell member made of the heat shrinkable sheet, which is performed after the step (1A), and adhering the outer shell member made of the heat shrinkable sheet to the plurality of columnar structural members (2A), A method of manufacturing a stage indirect hand structure of a multistage projectile characterized in that
請求項2に記載の多段式飛翔体の段間接手構造体の製造方法であって、
上記下段側構造体と上記上段側構造体との間において、上記柱状構造部材の軸方向と上記多段式飛翔体の機軸方向とが平行な状態で、かつ、該下段側構造体の周方向に沿って間隔を設けて、上記複数の柱状構造部材を配置し、かつ、該下段側構造体及び該上段側構造体の少なくとも一方に固定する工程(1B)と、
上記工程(1B)の後に実行され、上記熱収縮シートからなる外殻部材により上記複数の柱状構造部材と、上記下段側構造体及び上記上段側構造体の少なくとも他方の一部を包囲し、該熱収縮シートからなる外殻部材を該複数の柱状構造部材に密着させる工程(2B)と、を含む
ことを特徴とする多段式飛翔体の段間接手構造体の製造方法。
A method of manufacturing a stage indirect hand structure of a multistage projectile according to claim 2, comprising:
Between the lower stage structure and the upper stage structure, the axial direction of the columnar structural member is parallel to the axial direction of the multistage projectile, and in the circumferential direction of the lower stage structure. Placing a plurality of the columnar structural members at intervals along the distance, and fixing the plurality of columnar structural members to at least one of the lower side structure and the upper side structure (1B);
The plurality of columnar structural members, the lower side structural body, and at least a part of the upper side structural body are surrounded by the outer shell member formed of the heat shrinkable sheet, which is performed after the step (1B), And a step (2B) of bringing an outer shell member made of a heat-shrinkable sheet into close contact with the plurality of columnar structural members, and a method of manufacturing a stage indirect hand structure of a multistage projectile.
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Publication number Priority date Publication date Assignee Title
CN114322679A (en) * 2021-12-31 2022-04-12 重庆零壹空间航天科技有限公司 Solid rocket cold separation stage section suitable for automatic manufacturing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114322679A (en) * 2021-12-31 2022-04-12 重庆零壹空间航天科技有限公司 Solid rocket cold separation stage section suitable for automatic manufacturing

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