JPS5814132Y2 - air column airbag - Google Patents
air column airbagInfo
- Publication number
- JPS5814132Y2 JPS5814132Y2 JP1975098232U JP9823275U JPS5814132Y2 JP S5814132 Y2 JPS5814132 Y2 JP S5814132Y2 JP 1975098232 U JP1975098232 U JP 1975098232U JP 9823275 U JP9823275 U JP 9823275U JP S5814132 Y2 JPS5814132 Y2 JP S5814132Y2
- Authority
- JP
- Japan
- Prior art keywords
- bag
- air column
- air
- columns
- column
- 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
Landscapes
- Air Bags (AREA)
Description
【考案の詳細な説明】
本考案は車両等の衝突の際、乗員を保護するためのエア
バッグシステムに用いられる気柱式エアバッグに関する
。[Detailed Description of the Invention] The present invention relates to an air column airbag used in an airbag system for protecting occupants in the event of a collision of a vehicle or the like.
従来周知の気柱式エアバッグは第１図に示すように、乗
員を保護するためのバッグ１内に複数個の気柱２をベー
ス３に固定する構成となっている。As shown in FIG. 1, a conventionally known air column type airbag has a structure in which a plurality of air columns 2 are fixed to a base 3 within a bag 1 for protecting an occupant.
そして、図示しないが、高圧ガスを封入したボンベから
高圧ガスをダク）Ｋよって気柱２に導いて気柱２を膨張
させ、このとき通常折りたた１れているバッグ１内に生
ずる負圧により外気を吸入しバッグ１を展開させて乗員
保護を行なっている。Although not shown, high-pressure gas is introduced into the air column 2 from a cylinder filled with high-pressure gas to inflate the air column 2. At this time, negative pressure is generated inside the bag 1, which is normally folded. This allows outside air to be taken in and the bag 1 to be expanded to protect the occupant.
しかしながら、このような構造のものでは、バッグ１を
展開させるのに細長い気柱２が必要となり、このためバ
ッグ１の展開時に気柱２が振動しやすく、展開形状が不
完全で、展開完了の時間が遅くなり乗員保護が遅れると
いう欠点がある。However, with such a structure, an elongated air column 2 is required to deploy the bag 1, and therefore, the air column 2 tends to vibrate when the bag 1 is deployed, resulting in an incomplete unfolded shape and a failure to complete the deployment. This has the disadvantage that time is delayed and occupant protection is delayed.
一方、バッグ１の展開をはやくするために気柱２を短か
くすればバッグ１も短かくなり、乗員保護性能が不充分
になるという欠点がある。On the other hand, if the air column 2 is shortened in order to speed up the deployment of the bag 1, the bag 1 will also be shortened, resulting in a drawback that the occupant protection performance will be insufficient.
また気柱２の振動をなくすため気柱２の断面積を大きく
すると、必要ガス量が増大しボンベ容積を大きくしなけ
ればならないという欠点がある。Furthermore, if the cross-sectional area of the air column 2 is increased in order to eliminate the vibration of the air column 2, there is a drawback that the amount of gas required increases and the cylinder volume must be increased.
本考案は上記欠点を解消しようとするもので、バッグ内
に複数個の気柱を有する気柱式エアバッグにおいて、気
柱なバッグの車体固定側よりバッグ内に延出して設けら
れる主気柱と、断面積が主気柱より小さく、一体的に主
気柱の途中からほぼ上方へ延出するように設けられた第
１副気柱と主気柱の膨張側端部から乗員当接面側の四隅
に向って延出して設けられた４個の第２副気柱とにより
構成し、この気柱を前記バッグの車体への固定側から乗
員当接面側に膨張可能に前記バッグ内に設けることによ
り、バッグを展開させる力が強く、展開速度が速く、か
つバッグの展開形状が膨張可能な空間内に大きく展開で
き、乗員の運動エネルギーを有効に吸収できる気柱式エ
アバッグを提供することを目的とする。The present invention is an attempt to solve the above-mentioned drawbacks.In an air column type airbag having a plurality of air columns inside the bag, the main air column is provided extending into the bag from the side fixed to the vehicle body. and a first auxiliary air column, which has a cross-sectional area smaller than the main air column and is provided so as to integrally extend almost upward from the middle of the main air column, and a passenger contact surface from the expansion side end of the main air column. and four second secondary air columns extending toward the four corners of the side, and the air columns are inflatable from the side where the bag is fixed to the vehicle body to the passenger contacting surface side. Provides an air column type airbag that has a strong force for deploying the bag, has a high deployment speed, and can expand the shape of the bag to a large extent within the inflatable space, effectively absorbing the kinetic energy of the occupant. The purpose is to
以下、本考案を図に示す一実施例について説明する。An embodiment of the present invention illustrated in the drawings will be described below.
展開状態を示す第２図、第３図において、１０は乗員を
保護するため袋状に構成されたバッグで、図示しないが
展開時に外気を吸入する外気吸入弁を有する。In FIGS. 2 and 3 showing the unfolded state, numeral 10 denotes a bag shaped like a bag to protect the occupant, and has an outside air suction valve (not shown) for sucking in outside air when it is unfolded.
このバッグ１０内には車体のインストルメントパネル■
の下部に固定するためのベースＳのほぼ中央から円筒状
の主気柱１１が延出するようにしてあり、高圧ガスボン
ベＢからダクトＤを通して高圧ガスが供給されるように
なっている。Inside this bag 10 is the vehicle's instrument panel.
A cylindrical main air column 11 extends from approximately the center of a base S to be fixed to the lower part of the base S, and high pressure gas is supplied from a high pressure gas cylinder B through a duct D.
この主気柱１１には途中ベースＳよりにほぼ上方にやや
左右方向に向けてそれぞれ１個づつ合計２個の第１副気
柱１２が延出するように設けである。This main air column 11 is provided with a total of two first sub air columns 12 extending substantially upwardly and slightly laterally from the base S midway, one each.
また、この主気柱１１の先端、すなわち膨張側端部は円
すい形に形成してあり、この膨張側端部からバッグ１０
の四隅に向って乗員当接面すなわち最大膨張部１で延出
する４個の円筒状の第２副気柱１３が設けである。Further, the tip of the main air column 11, that is, the inflation side end is formed into a conical shape, and the bag 10 is formed from this inflation side end.
Four cylindrical second secondary air columns 13 are provided that extend toward the four corners of the passenger contact surface, that is, the maximum expansion portion 1.
これら第１、第２副気柱１２，１３は糸等で主気柱１１
に縫合により取付けてあり、第１、第２副気柱１２，１
３は主気柱１１に連通し主気柱１１の膨張とともに、第
１１第２副気柱１２，１３もそれぞれ膨張、延出するよ
うにしである。These first and second auxiliary air columns 12 and 13 are connected to the main air column 11 by threads or the like.
The first and second sub-air columns 12, 1 are attached by sutures to the
3 communicates with the main air column 11, and as the main air column 11 expands, the eleventh and second sub air columns 12 and 13 also expand and extend, respectively.
また、これら第１、第２副気柱１２，１３の横断面の面
積は主気柱１１の横断面の面積より小さくしである。Further, the cross-sectional area of the first and second sub-air columns 12 and 13 is smaller than the cross-sectional area of the main air column 11.
なお、通常時、主気柱１１、釦よび第１１第２副気柱１
２，１３はいずれもバッグ１０とともに折ったた筐れて
乗員と対向する車体の一部、例えばインストメンドパネ
ル■の下部に設置されることは言うまでもない。In addition, under normal conditions, the main air column 11, the button and the 11th and 2nd sub air column 1
Needless to say, both of 2 and 13 are folded together with the bag 10 and installed in a part of the vehicle body facing the passenger, for example, at the bottom of the instrument panel (2).
上記構成にかいて、車両が衝突すると図示しない衝突検
知センサーから衝突信号が発せられて高圧ガスボンベＢ
の電気***が爆発して吐出口を開き、まず主気柱１１に
高圧ガスが導入される。With the above configuration, when a vehicle collides, a collision signal is emitted from a collision detection sensor (not shown) and the high pressure gas cylinder B is
The electric detonator explodes and opens the discharge port, first introducing high pressure gas into the main air column 11.
そして、主気柱１１は乗員側へ膨張してバッグ１０を乗
員側に展開させ、その後高圧ガスによって第１、第２副
気柱１２，１３がほぼ同時に膨張し、延出する。Then, the main air column 11 expands toward the passenger to deploy the bag 10 toward the passenger, and then the first and second sub-air columns 12 and 13 are inflated and extended almost simultaneously by the high pressure gas.
このためバッグ１０内に生ずる負圧によりバッグ１０内
に外気すなわち車室内空気が吸入されバッグ１０が乗員
側に展開する。Therefore, the negative pressure generated within the bag 10 causes outside air, that is, air inside the vehicle, to be sucked into the bag 10, and the bag 10 is deployed toward the passenger.
この外気吸入は各気柱の膨張が完了する昔で続き、バッ
グ１０を第３図に示すように各気柱により所定の形状に
展開し、このバッグ１０によって乗員は保護される。This intake of outside air continues until the inflation of each air column is completed, and the bag 10 is expanded into a predetermined shape by each air column as shown in FIG. 3, and the occupant is protected by this bag 10.
この時、主気柱１１は断面積が大きくバッグ１０を保持
する力が強く、第１、第２副気柱１２，１３は、これよ
り断面積は小さいが短かいため、バッグ１０を所定の形
状に迅速に展開させることができる。At this time, the main air column 11 has a large cross-sectional area and a strong force for holding the bag 10, and the first and second sub-air columns 12 and 13 have a smaller cross-sectional area but are shorter, so the bag 10 is held in a predetermined position. It can be quickly developed into a shape.
しかも、第１副気柱１２によりバッグ１０の一部がイン
ストルントパネル■側や前面窓ガラス側に向って展開さ
れてバッグ１０がインストルントパネル■等によっても
保持（位置決め）されるため、乗員がバッグ１０に衝突
した際のバッグ１０の移動量が最小限となる。Moreover, a part of the bag 10 is deployed toward the instrument panel ■ side or the front window glass side by the first secondary air column 12, and the bag 10 is also held (positioned) by the instrument panel ■, etc. The amount of movement of the bag 10 when it collides with the bag 10 is minimized.
従って、乗員の頭部がインストルメントパネルＩやフロ
ントガラスに衝突するのを防止できるとともに、車両衝
突時の乗員の運動エネルギーをより早く確実に吸収する
ことが可能となり、乗員を安全に保護し得る。Therefore, it is possible to prevent the occupant's head from colliding with the instrument panel I or the windshield, and it is also possible to more quickly and reliably absorb the occupant's kinetic energy in the event of a vehicle collision, thereby safely protecting the occupant. .
また、バッグ１０の展開時にはバッグ１０内がほぼ大気
圧であるのに対し各気柱１１〜１３は数気圧になって剛
性が高くなるが、第２副気柱１３をバッグ１０の四隅に
向って延ばして乗員が最初にこの堅い第２副気柱１３に
当ることがないようにしているため、乗員が最初にバッ
グ１０に当った時の衝撃は非常に小さいものである。Furthermore, when the bag 10 is deployed, the inside of the bag 10 is at almost atmospheric pressure, but each of the air columns 11 to 13 has a pressure of several atmospheres, which increases the rigidity. Since the bag 10 is extended to prevent the passenger from first hitting the hard second secondary air column 13, the impact when the passenger hits the bag 10 for the first time is very small.
しかも４本の第２副気柱１３により乗員を包み込むよう
に保護することができる。Furthermore, the four second sub-air columns 13 can wrap and protect the occupant.
以上述べたように本発明によれば、各気柱によりバッグ
を所定形状に迅速に展開させることができる。As described above, according to the present invention, the bag can be quickly expanded into a predetermined shape by each air column.
また、車両の前後方向に衝撃力が加わった場合にはバッ
グが乗員を包み込みながら前方へ移動しようとするのを
少なくとも２個以上の第１副気柱のつけ根付近の部分が
インストルメントパネルの前面部に当接してバッグを乗
員方向にまっすぐ向けると共にバッグは第１副気柱のつ
け根付近の部分に支えられてバッグが車両前方へ移動す
ることが規制されるから乗員衝突時のバッグ移動量を少
なくすることができ、第１副気柱によりバッグを保持で
きる効果がある。In addition, when an impact force is applied in the front-rear direction of the vehicle, the part near the base of at least two or more first secondary air columns is placed in front of the instrument panel to prevent the bag from moving forward while enveloping the occupant. In addition, the bag is supported by the area near the base of the first secondary air column, which restricts the bag from moving forward in the vehicle, reducing the amount of bag movement in the event of an occupant collision. This has the effect that the bag can be held by the first secondary air column.
渣た、バッグの容積を大きくして乗員の運動エネルギー
の吸収能力をアップすることができる。Additionally, the capacity of the bag to absorb the kinetic energy of the occupant can be increased by increasing the volume of the bag.
また、第１および第２副気柱はそれらより横断面積が大
きく、かつ第２副気柱よりも長い主気柱によって支えら
れているので主気柱により強い力でバッグを支持でき、
従ってこれらが相俟って乗員の運動エネルギーを早く確
実に吸収し得るという優れた効果が得られる。In addition, since the first and second sub-air columns have a larger cross-sectional area and are supported by a main air column that is longer than the second sub-air column, the bag can be supported by the main air column with a stronger force.
Therefore, these factors combine to provide an excellent effect in that the kinetic energy of the occupant can be absorbed quickly and reliably.
また、本考案は第２副気柱なバッグの四隅に向って延ば
しているため、乗員がほぼ所定位置に座つて釦り、車両
の前後方向に衝撃力が加わった場合には特に乗員が堅い
第２副気柱に当たることがなくバッグに当った時の衝撃
を極めて小さくできるとともに、乗員を包み込むように
保護することができ、また上記のように第１副気柱によ
りバッグを保持できるので乗員の頭部がフロントガラス
等に衝突するのを防止でき、安全性の而で非常に優れて
いる。In addition, since the present invention extends toward the four corners of the bag, which is the second secondary air column, the occupant is seated in a predetermined position when pressing the button, and the occupant feels stiff, especially when an impact force is applied in the longitudinal direction of the vehicle. The impact when the bag hits the bag can be minimized without hitting the second secondary air column, and the passenger can be protected by wrapping around the bag.Also, as mentioned above, the bag can be held by the first secondary air column, so the passenger can This prevents the head of the driver from colliding with the windshield, etc., making it extremely safe.
第１図は従来周知の気柱式エアバッグの一例を示す透視
図、第２図は本考案の一実施例を示す透視斜視図、第３
図は第２図に示した実施例の作動説明に供する模式図で
ある。
１０・・・・・・バッグ、１１・・・・・・主気柱、１
２・・・・・・第１副気柱、１３・・・・・・第２副気
柱。FIG. 1 is a perspective view showing an example of a conventionally known air column type airbag, FIG. 2 is a perspective view showing an embodiment of the present invention, and FIG.
This figure is a schematic diagram for explaining the operation of the embodiment shown in FIG. 2. 10...Bag, 11...Main air column, 1
2...First sub-air column, 13...Second sub-air column.
Claims (1)
ると膨張する複数個の気柱を設け、この気柱が膨張した
時前記バッグ内に生じる負圧により外気を吸入して展開
する気柱式エアバッグにトいて、前記バッグの車体固定
側より前記バッグ内に延出して設けられる主気柱と、こ
の上気柱の途中から連通して分岐（−前記バッグのほぼ
上方へ延出して設けられた少なくとも２個以上の第１副
気柱と、前記主気柱の膨張側端部より連通して分岐し前
記バッグの乗員当接面側の四隅に向って延出して設けら
れた４個の主気柱より短い第２副気柱とにより前記複数
個の気柱を構成し、前記第１、第２副気柱の横断面積は
主気柱の横断面積より小さくし前記バッグを車体固定側
から乗員当接面側に膨張可能に構成したことを特徴とす
る気柱式エアバッグ。A bag for protecting passengers is provided with a plurality of air columns that expand when high-pressure gas is supplied, and when these air columns expand, the negative pressure generated within the bag draws in outside air and expands the air. In a pillar-type airbag, a main air column is provided that extends into the bag from the side fixed to the vehicle body of the bag, and a main air column that communicates with the middle of this upper air column and branches (extends almost above the bag). at least two first auxiliary air columns provided in the bag, and at least two or more first auxiliary air columns, which are connected to and branch from the expansion side end of the main air column and extend toward the four corners of the passenger contacting surface of the bag. The plurality of air columns are constituted by second sub-air columns shorter than the four main air columns, and the cross-sectional area of the first and second sub-air columns is smaller than the cross-sectional area of the main air column, and the bag is An air column type airbag characterized by being configured to be inflatable from the side fixed to the vehicle body to the passenger contacting side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1975098232U JPS5814132Y2 (en) | 1975-07-14 | 1975-07-14 | air column airbag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1975098232U JPS5814132Y2 (en) | 1975-07-14 | 1975-07-14 | air column airbag |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5211734U JPS5211734U (en) | 1977-01-27 |
| JPS5814132Y2 true JPS5814132Y2 (en) | 1983-03-19 |
Family
ID=28579843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1975098232U Expired JPS5814132Y2 (en) | 1975-07-14 | 1975-07-14 | air column airbag |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5814132Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013006501A (en) * | 2011-06-24 | 2013-01-10 | Ashimori Industry Co Ltd | Manufacturing method for airbag, and airbag |
| JP5778502B2 (en) * | 2011-06-24 | 2015-09-16 | 芦森工業株式会社 | Air bag and air bag device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS476532U (en) * | 1971-02-12 | 1972-09-22 | ||
| JPS5149696Y2 (en) * | 1971-09-03 | 1976-11-30 | ||
| JPS5154180Y2 (en) * | 1972-03-28 | 1976-12-24 |
-
1975
- 1975-07-14 JP JP1975098232U patent/JPS5814132Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5211734U (en) | 1977-01-27 |
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