JPS6243878Y2 - - Google Patents
Info
- Publication number
- JPS6243878Y2 JPS6243878Y2 JP1980070678U JP7067880U JPS6243878Y2 JP S6243878 Y2 JPS6243878 Y2 JP S6243878Y2 JP 1980070678 U JP1980070678 U JP 1980070678U JP 7067880 U JP7067880 U JP 7067880U JP S6243878 Y2 JPS6243878 Y2 JP S6243878Y2
- Authority
- JP
- Japan
- Prior art keywords
- detonators
- detonator
- parallel
- energized
- gunpowder
- 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
- 239000003721 gunpowder Substances 0.000 claims description 4
- 230000001133 acceleration Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims 2
- 238000009429 electrical wiring Methods 0.000 description 5
- 238000010304 firing Methods 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910001120 nichrome Inorganic materials 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
Description
【考案の詳細な説明】
本考案は通電による発熱で火薬に点火し、シー
トベルトのロツクやエアバツクの展開を行なうよ
うにした、発熱起爆部を備えた乗員保護装置に関
する。[Detailed Description of the Invention] The present invention relates to an occupant protection device equipped with a heat-generating detonator that ignites gunpowder by generating heat from electricity, thereby locking a seatbelt and deploying an airbag.
従来、この種の装置においては、２つの発熱起
爆部を並列接続し、同時に通電することによつて
もし一方がオープン故障していた場合も他方が動
作するように冗長性をもたせることが周知であ
る。ところが、この場合２つのうち一方がシヨー
ト（短絡）した場合でも他方が正常に作動し得る
ように構成する必要がある。そこで、この点に鑑
みて発熱起爆部にそれぞれ直列に抵抗素子を接続
するとともに、発熱起爆部の１つがシヨートした
状態でも、残りの発熱起爆部には充分に電流を流
すように前記抵抗素子の抵抗値を設定したもの
が、例えば特開昭54−42737号等に開示されてい
る。 Conventionally, in this type of device, it is well known that two heating detonators are connected in parallel and energized at the same time to provide redundancy so that even if one has an open failure, the other will operate. be. However, in this case, even if one of the two is short-circuited, the other needs to be constructed so that it can operate normally. Therefore, in view of this point, a resistive element is connected in series to each of the heat-generating detonators, and even if one of the heat-generating detonators is shot, a sufficient current flows through the remaining heat-generating detonators. A device with a set resistance value is disclosed in, for example, Japanese Patent Laid-Open No. 42737/1983.
しかしながら、このような従来装置にあつて
は、抵抗素子を接続したことにより、部品数が増
加し、さらに抵抗素子と導線との接続点（コネク
タ）が増加するために、信頼性が悪化する。特
に、車両の衝撃時に乗員を保護する乗員保護装置
においては、極めて高い信頼性が要求されるのに
対して、上記の様に部品数と接続点が増加してし
まうことは、その信頼性を低下させてしまう点
で、実用上に問題がある。 However, in such a conventional device, the number of components increases due to the connection of the resistive element, and the number of connection points (connectors) between the resistive element and the conductive wire also increases, which deteriorates reliability. In particular, extremely high reliability is required for occupant protection systems that protect occupants during vehicle impacts, but the increase in the number of parts and connection points as described above has a negative impact on reliability. There is a practical problem in that it lowers the temperature.
本考案は上記諸点に鑑み、発熱起爆部の一つが
シヨートしても他を作動させることができ、しか
も余分な部品数並びにコネクタやはんだ付箇所の
増加を招くことなく実現できる。実用性と信頼性
に優れた乗員保護装置を提供することを目的とす
るものである。 In view of the above points, the present invention is capable of activating the other heat-generating detonators even if one of them is fired, and can be realized without increasing the number of extra parts, connectors, or soldering points. The objective is to provide an occupant protection device that is highly practical and reliable.
本考案を添付図について説明すると、１は車載
バツテリ、２はイグニツシヨンスイツチ、３，４
は車両衝突時の急加速度によつて閉じるＧセンサ
で、車体ボデイに取付けてある。５，６は通電に
より発熱して火薬に点火する起爆装置で、車両助
手席のエアバツク展開装置を作動させるものであ
る。この起爆装置５，６は、電気配線７，８，
９，１０により、Ｇセンサ３，４を通る通電路に
並列に接続してある。 To explain the present invention with reference to the attached figures, 1 is an in-vehicle battery, 2 is an ignition switch, 3 and 4 are
is a G sensor that closes due to sudden acceleration during a vehicle collision, and is attached to the vehicle body. Reference numerals 5 and 6 are detonators that generate heat when energized and ignite gunpowder, which activates the air bag deployment device in the passenger seat of the vehicle. These detonators 5, 6 are connected to electrical wiring 7, 8,
9 and 10 are connected in parallel to the current-carrying path passing through the G sensors 3 and 4.
また、１１，１２は運転席のエアバツク展開装
置を作動させる起爆装置で、電気配線１３，１
４，１５，１６，１７，１８により、Ｇセンサ
３，４を通る通電路に並列に接続してある。 In addition, 11 and 12 are detonators that activate the airbag deployment device in the driver's seat, and electrical wiring 13 and 1
4, 15, 16, 17, and 18 are connected in parallel to the current-carrying path passing through the G sensors 3 and 4.
そして、電気配線のうち７，８，１４，１５で
示す配線は、一般的に使用される良導電線でな
く、所定の抵抗値を定めた抵抗線を使用してあ
る。例えばニクロム線が好適である。本考案装置
の特徴は起爆装置５，６，１１，１２に通電する
ために必要な電気配線の一部に余分なコネクタを
使用することなく抵抗線７，８，１４，１５をそ
のまま使用したことである。なお、〇印で示すコ
ネクタは通常使用されるものであつて付加的な部
品数はない。 Among the electrical wirings, wirings 7, 8, 14, and 15 are not commonly used high-conductivity wires, but are resistance wires having a predetermined resistance value. For example, nichrome wire is suitable. The feature of the device of the present invention is that the resistance wires 7, 8, 14, 15 are used as they are as part of the electrical wiring necessary to energize the detonators 5, 6, 11, 12 without using extra connectors. It is. Note that the connectors marked with a circle are those that are normally used, and there are no additional parts.
上記の構成とすることによつて、起爆装置５，
６の一方がシヨートしている場合でも、Ｇセンサ
３，４が閉じればバツテリ１から通電されること
により抵抗線７および８に電圧降下が生じ、起爆
装置がシヨートしている側の電圧降下により残り
の正常な起爆装置に電源を与え、それを作動させ
ることができる。起爆装置１１，１２に関しても
同様である。つまり、４個の起爆装置のどれがシ
ヨートしても残りの起爆装置に通電することがで
きる。 By having the above configuration, the detonator 5,
Even if one side of the detonator is firing, if the G sensors 3 and 4 are closed, a voltage drop will occur in the resistance wires 7 and 8 due to the energization from the battery 1, and a voltage drop will occur on the side where the detonator is firing. The remaining normal detonators can be powered and activated. The same applies to the detonators 11 and 12. That is, even if any of the four detonators fires, the remaining detonators can be energized.
以上述べたように本考案によれば起爆装置への
車両配線自体に抵抗電線を用いているので、並列
に接続された複数の起爆装置のうちにシヨートし
たものがあつても、他の起爆装置には必ず起爆に
必要な電圧を印加させ作動させることができ、し
かも部品点数と接続点の増加がないので簡単な構
成で信頼性の高い起爆装置が構成できるという優
れた効果がある。 As mentioned above, according to the present invention, resistance wires are used in the vehicle wiring itself to the detonators, so even if one of the multiple detonators connected in parallel shoots, other detonators The detonator has the excellent effect of being able to apply the necessary voltage for detonation and actuate it, and furthermore, because there is no increase in the number of parts and connection points, a highly reliable detonator can be constructed with a simple configuration.
添付図面は本考案の一実施例を示す電気結線図
である。
５，６，１１，１２……起爆装置、７，８，１
４，１５……抵抗電線。
The accompanying drawing is an electrical wiring diagram showing an embodiment of the present invention. 5, 6, 11, 12...detonator, 7, 8, 1
4,15...Resistance wire.
Claims (1)
センサを備え、自動車の衝突時に該衝撃検出セン
サにより通電されて火薬に点火する起爆装置を複
数個並列に接続した乗員保護装置において、 前記起爆装置のそれぞれが、それぞれの前記起
爆装置の両端子に直列接続される配線を介して並
列接線されると共に、 前記配線と直列接続された前記起爆装置の短絡
状態での前記通電のもとで、これと並列接続され
た他の前記起爆装置に前記火薬に点火するに充分
な電流を供給できる電圧降下を生じる値に前記配
線の抵抗値が設定されることを特徴とする乗員保
護装置。[Scope of Claim for Utility Model Registration] A passenger equipped with an impact detection sensor that detects sudden acceleration at the time of a car collision, and connected in parallel with a plurality of detonators that are energized by the impact detection sensor and ignite gunpowder when the car crashes. In the protection device, each of the detonators is tangentially connected in parallel to both terminals of each detonator via a wire connected in series, and the detonator is connected in series with the wire in a short-circuited state. The resistance value of the wiring is set to a value that, when energized, causes a voltage drop that can supply sufficient current to ignite the gunpowder to the other detonator connected in parallel with the detonator. Occupant protection equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980070678U JPS6243878Y2 (en) | 1980-05-21 | 1980-05-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980070678U JPS6243878Y2 (en) | 1980-05-21 | 1980-05-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56171361U JPS56171361U (en) | 1981-12-17 |
| JPS6243878Y2 true JPS6243878Y2 (en) | 1987-11-16 |
Family
ID=29664535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1980070678U Expired JPS6243878Y2 (en) | 1980-05-21 | 1980-05-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6243878Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5442737A (en) * | 1977-09-08 | 1979-04-04 | Nippon Denso Co Ltd | Air bag |
-
1980
- 1980-05-21 JP JP1980070678U patent/JPS6243878Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5442737A (en) * | 1977-09-08 | 1979-04-04 | Nippon Denso Co Ltd | Air bag |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56171361U (en) | 1981-12-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3294582B2 (en) | Electric pyrotechnic igniter | |
| JP3575797B2 (en) | Electro-ignition igniter with two ignition heads and its use in automotive safety devices | |
| JP2856337B2 (en) | Starter for occupant protection system | |
| JPH0345884Y2 (en) | ||
| JPS5823263B2 (en) | Air bag device activation device | |
| US6070531A (en) | Application specific integrated circuit package and initiator employing same | |
| US3980318A (en) | Fused multiple stage inflation system | |
| JPS6157219B2 (en) | ||
| EP0805074A1 (en) | Automobile airbag system | |
| US4438424A (en) | Electric apparatus for a vehicle safety device | |
| JPS5823264B2 (en) | air bag device | |
| US6226578B1 (en) | Electronic control circuit for a vehicle safety device | |
| JPS6243878Y2 (en) | ||
| EP0339967A1 (en) | Improvements relating to firing circuits for restraints in vehicles | |
| US5080395A (en) | Occupant protective system for automotive vehicles | |
| EP1544570B1 (en) | Squib | |
| JP2694651B2 (en) | Vehicle occupant protection system | |
| EP1049607B1 (en) | A vehicle safety system | |
| JP2002046573A (en) | Passive safety device for vehicle and controlling method thereof | |
| SE504452C2 (en) | System for triggering a protective device | |
| JPH0454047Y2 (en) | ||
| JP2878770B2 (en) | Occupant protection device with airbag system | |
| KR100292108B1 (en) | Explosion system of air bag inflater | |
| JP3319185B2 (en) | Collision safety device | |
| JP3001872U (en) | Occupant protection device |