JPH0216158Y2 - - Google Patents
Info
- Publication number
- JPH0216158Y2 JPH0216158Y2 JP8832785U JP8832785U JPH0216158Y2 JP H0216158 Y2 JPH0216158 Y2 JP H0216158Y2 JP 8832785 U JP8832785 U JP 8832785U JP 8832785 U JP8832785 U JP 8832785U JP H0216158 Y2 JPH0216158 Y2 JP H0216158Y2
- Authority
- JP
- Japan
- Prior art keywords
- detonator
- inner tube
- tube
- opening
- funnel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000000919 ceramic Substances 0.000 claims description 11
- 239000003814 drug Substances 0.000 claims 1
- 229940079593 drug Drugs 0.000 claims 1
- 238000007789 sealing Methods 0.000 claims 1
- 208000005189 Embolism Diseases 0.000 description 10
- 230000035939 shock Effects 0.000 description 7
- 239000002360 explosive Substances 0.000 description 4
- 239000000843 powder Substances 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000005474 detonation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
- Medicinal Preparation (AREA)
- Nozzles (AREA)
- Air Bags (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は爆発作動装置に使用される起爆管に関
するもので、特に宇宙空間での気密性保持に優れ
た起爆管に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a detonator used in an explosive actuation device, and particularly to a detonator that maintains airtightness in outer space.
宇宙空間で使用される起爆管は、爆発作動後の
爆発作動装置系内で気密性能を保持することが必
須条件でありその気密性能は作動前後で、リニウ
ムリークテスターによる測定値が１×10-6CC・
atm／sec以下と規定されているほどである。そ
のため、起爆管の塞栓は一般の電気雷管で使用す
るような樹脂塞栓では気密性能上使用できず、一
般的にはセラミツク焼結体で封着した塞栓（以下
セラミツク焼結体塞栓という）が使用されてい
る。
It is essential for a detonator used in space to maintain airtightness within the detonator system after detonation, and its airtightness is measured by a linium leak tester at 1 -6 CC・
So much so that it is regulated to be no more than atm/sec. Therefore, the resin embolus used in general electric detonators cannot be used to embolize the detonator due to its airtight performance, and emboluses sealed with ceramic sintered bodies (hereinafter referred to as ceramic sintered emboluses) are generally used. has been done.
〔考案が解決しようとする問題点〕
従来、起爆管は、その爆発作動時の衝撃波によ
りセラミツク焼結体塞栓に亀裂が入り気密不良を
発生するという問題があつた。そのためセラミツ
ク焼結体塞栓の亀裂を防止する手段として種々研
究され点火部と起爆薬との中間に内管を設けて衝
撃波を吸収をさせることが従来から研究されてき
たが未だ信頼性の高い内管を得ることができなか
つた。[Problems to be Solved by the Invention] Conventionally, detonators have had the problem that the shock waves generated during the detonation operation cause cracks in the ceramic sintered embolus, resulting in poor airtightness. Therefore, various studies have been conducted to prevent cracks in the ceramic sintered embolus, and research has been conducted to provide an inner tube between the ignition part and the detonator to absorb the shock waves, but there is still no reliable method. Couldn't get a tube.
本考案は、上記の問題点を解決するためになさ
れたもので起爆管内に設ける内管を特殊な構造と
することにより、爆発作動時の衝撃波が吸収され
セラミツク焼結体塞栓の亀裂防止に効果があるこ
とに着目し完成されたものである。 This invention was developed in order to solve the above-mentioned problems.By making the inner tube installed in the detonator tube have a special structure, the shock wave during the explosion is absorbed and is effective in preventing cracks in the ceramic sintered embolus. It was completed by focusing on the fact that
すなわち、本考案による起爆管は、円筒状本体
の内部に、その一方の開口部附近に該開口部から
導出される一対のリード線をセラミツク焼結体で
封止してなる点火部を有し、他方の開口部附近に
添装薬と起爆薬とを圧填した管体を備えてなる起
爆管において、前記点火部と前記管体との間に、
前記点火部に面して凹部を有する多孔内管を配置
し、その多孔内管に面して一端が大きく開口し、
前記起爆薬に面した他端が小さく開口しているロ
ート状内孔を有するロート状内管を配置してなる
ことを特徴とするものである。
That is, the detonator according to the present invention has an ignition part inside a cylindrical main body near one opening thereof, in which a pair of lead wires led out from the opening are sealed with a ceramic sintered body. , in a detonator tube comprising a tube body pressurized with an additive and a detonator near the other opening, between the ignition part and the tube body,
A porous inner tube having a concave portion is arranged facing the ignition part, and one end is largely opened facing the porous inner tube,
The present invention is characterized in that a funnel-shaped inner tube having a funnel-shaped inner hole with a small opening at the other end facing the initiator is arranged.
以下図面により本考案を説明する。 The present invention will be explained below with reference to the drawings.
第１図は本考案による１実施例を示す起爆管の
縦断面図である。第２ａ図は多孔内管を示す平面
図で、第２ｂ図は第２ａ図のＸ−Ｘ線に沿う断面
図である。第３ａ図はロート状内管を示す平面図
で、第３ｂ図は第３ａ図のＹ−Ｙ線に沿う断面図
である。第１図において、１は円筒状本体であ
り、この円筒状本体１には内部の一方の開口部に
一対のリード線３ａ，３ｂを有し、このリード線
３ａ，３ｂはセラミツク焼結体塞栓２で封止され
ている。リード線３ａ，３ｂは円筒状本体１の外
に導出され、円筒状本体１内の末端には電橋線４
が取りつけられている。電橋線４の上には点火薬
４ａが付着され点火部を形成している。また、円
筒状本体１の内部の他方の開口部には、添装薬８
および起爆薬７を圧填した管体９が備えられてい
る。本考案では特にこの点火部と起爆薬７との中
間に、点火部に面して凹部を有する多孔内管５を
配置させると共にその多孔内管５に面して一端が
大きく開口し、かつ起爆薬７に面した他端が小さ
く開口しているロート状内孔を有するロート状内
管６を配置させている。 FIG. 1 is a longitudinal sectional view of a detonator tube showing one embodiment of the present invention. FIG. 2a is a plan view showing the porous inner tube, and FIG. 2b is a sectional view taken along the line X--X in FIG. 2a. FIG. 3a is a plan view showing the funnel-shaped inner tube, and FIG. 3b is a sectional view taken along the line Y--Y in FIG. 3a. In FIG. 1, reference numeral 1 denotes a cylindrical body, and this cylindrical body 1 has a pair of lead wires 3a, 3b at one opening inside, and these lead wires 3a, 3b are made of ceramic sintered body embolus. It is sealed with 2. The lead wires 3a and 3b are led out of the cylindrical body 1, and a bridge wire 4 is connected to the end inside the cylindrical body 1.
is attached. Ignition powder 4a is attached to the electric bridge wire 4 to form an ignition part. Further, the other opening inside the cylindrical main body 1 is provided with a loading agent 8.
A tube body 9 pressurized with an explosive 7 is provided. In particular, in the present invention, a porous inner tube 5 having a concave portion facing the ignition section is disposed between the ignition section and the priming charge 7, and one end of the porous inner tube 5 is wide open facing the ignition section. A funnel-shaped inner tube 6 having a funnel-shaped inner hole with a small opening at the other end facing the explosive 7 is arranged.
本考案で用いられる多孔内管およびロート状内
管の材質は一般に金属が用いられ例えばステンレ
ススチール、アルミニウム等があげられる。 The porous inner tube and funnel-shaped inner tube used in the present invention are generally made of metal, such as stainless steel or aluminum.
また、多孔内管の孔は、内管の周囲に沿つて等
間隔に設ける等多孔内管の強度を弱めないように
することがのぞましく、孔数は２個から６個が適
当である。 In addition, it is preferable that the holes in the porous inner tube be arranged at equal intervals along the circumference of the inner tube so as not to weaken the strength of the porous inner tube, and the appropriate number of holes is 2 to 6. be.
以上のように構成された本考案の起爆管の作用
を第１図によつて説明する。
The operation of the detonator of the present invention constructed as described above will be explained with reference to FIG.
まづ、起爆管のリード線３ａ，３ｂに通電する
と点火薬４ａが発火する。この点火薬４ａの発火
により生じた炎は多孔内管の孔を通過し、次にロ
ート状内管を通過し起爆管７を点火する。この点
火により起爆薬７が起爆し更に添装薬８が爆発し
起爆管として作動するものである。この起爆管の
作動において、添装薬８の爆発と同時に衝撃波が
発生するが本考案では衝撃波の伝播する途中にロ
ート状内管６および多孔内管５による障害物が配
置されているため、この障害物間を通過する衝撃
波は吸収され、セラミツク焼結体塞栓２への衝撃
は柔げられる。 First, when the lead wires 3a and 3b of the detonator are energized, the ignition powder 4a ignites. The flame generated by the ignition of the igniter 4a passes through the holes in the porous inner tube, and then passes through the funnel-shaped inner tube to ignite the detonator tube 7. This ignition causes the detonator 7 to detonate and the additive 8 to explode, thereby operating as a detonator. When the detonator operates, a shock wave is generated at the same time as the charge 8 explodes, but in the present invention, obstacles such as the funnel-shaped inner tube 6 and the porous inner tube 5 are placed on the way the shock wave propagates. Shock waves passing between the obstacles are absorbed, and the impact on the ceramic sintered embolus 2 is softened.
以上のように本考案による起爆管は、内部に多
孔内管およびロート状内管を配置したことにより
起爆管の作動時に発生する衝撃波を柔げることに
成効し、従来できなかつたセラミツク焼結体塞栓
の亀裂防止が確実に可能になり、起爆管の爆発作
動後の気密性能を確保することができた。
As described above, the detonator according to the present invention is effective in softening the shock waves generated when the detonator is activated by arranging a porous inner tube and a funnel-shaped inner tube inside, and is made of ceramic sintered material, which was previously impossible. It has become possible to reliably prevent cracks in the solid embolus, and ensure airtight performance after the detonator explodes.
第１図は本考案による１実施例を示す起爆管の
縦断面図、第２ａ図は多孔内管を示す平面図、第
２ｂ図は第２ａ図のＸ−Ｘ線に沿う断面図、第３
ａ図はロート状内管を示す平面図、第３ｂ図は第
３ａ図のＹ−Ｙ線に沿う断面図である。
１……円筒状本体、２……セラミツク焼結体塞
栓、３ａ，３ｂ……リード線、４……電橋線、４
ａ……点火薬、５……多孔内管、６……ロート状
内管、７……起爆薬、８……添装薬、９……管
体。
Fig. 1 is a longitudinal sectional view of a detonator showing one embodiment of the present invention, Fig. 2a is a plan view showing a porous inner tube, Fig. 2b is a sectional view taken along the line X-X of Fig. 2a, and Fig. 3
Figure a is a plan view showing the funnel-shaped inner tube, and Figure 3b is a sectional view taken along the Y--Y line in Figure 3a. 1... Cylindrical body, 2... Ceramic sintered body embolus, 3a, 3b... Lead wire, 4... Electric bridge wire, 4
a... Ignition powder, 5... Porous inner tube, 6... Funnel-shaped inner tube, 7... Explosive charge, 8... Loading agent, 9... Tube body.
Claims (1)
該開口部から導出される一対のリード線をセラミ
ツク焼結体で封止してなる点火部を有し、他方の
開口部附近に添装薬と起爆薬とを圧填した管体を
備えてなる起爆管において、前記点火部と前記管
体との間に、前記点火部に面して凹部を有する多
孔内管を配置し、その多孔内管に面して一端が大
きく開口し、前記起爆薬に面した他端が小さく開
口しているロート状内孔を有するロート状内管を
配置してなることを特徴とする起爆管。 Inside the cylindrical body, there is an ignition part formed by sealing a pair of lead wires led out from the opening with a ceramic sintered body near one opening, and an ignition part is attached near the other opening. In a detonator tube comprising a tube body pressurized with a drug and a primer, a porous inner tube having a concave portion facing the ignition portion is disposed between the ignition portion and the tube body; 1. A detonator tube comprising a funnel-shaped inner tube having a funnel-shaped inner hole having a large opening at one end facing the inner tube and a small opening at the other end facing the detonator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8832785U JPH0216158Y2 (en) | 1985-06-13 | 1985-06-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8832785U JPH0216158Y2 (en) | 1985-06-13 | 1985-06-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61204199U JPS61204199U (en) | 1986-12-23 |
| JPH0216158Y2 true JPH0216158Y2 (en) | 1990-05-01 |
Family
ID=30641356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8832785U Expired JPH0216158Y2 (en) | 1985-06-13 | 1985-06-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0216158Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2003235178A1 (en) * | 2002-04-16 | 2003-10-27 | Nippon Kayaku Kabushiki-Kaisha | Gas generator |
-
1985
- 1985-06-13 JP JP8832785U patent/JPH0216158Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61204199U (en) | 1986-12-23 |
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