JP3312973B2 - Automotive airbag door opening adjustment structure - Google Patents
Automotive airbag door opening adjustment structureInfo
- Publication number
- JP3312973B2 JP3312973B2 JP27790993A JP27790993A JP3312973B2 JP 3312973 B2 JP3312973 B2 JP 3312973B2 JP 27790993 A JP27790993 A JP 27790993A JP 27790993 A JP27790993 A JP 27790993A JP 3312973 B2 JP3312973 B2 JP 3312973B2
- Authority
- JP
- Japan
- Prior art keywords
- airbag
- airbag door
- opening
- door
- opening adjustment
- 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 - Fee Related
Links
- 230000001105 regulatory effect Effects 0.000 description 6
- 239000006260 foam Substances 0.000 description 3
- 239000012634 fragment Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 241000264877 Hippospongia communis Species 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920006380 polyphenylene oxide Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
Landscapes
- Air Bags (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は自動車のエアバッグド
アの構造に関し、特にはドアの開度調節構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of an airbag door of a motor vehicle, and more particularly to a door opening adjusting structure.
【０００２】[0002]
【従来の技術】たとえば、自動車の助手席側のエアバッ
グ装置は、助手席前面の車室側部材（具体的にはインス
トルメントパネル）内部に装着される。この車室側部材
にはエアバッグ展開開口部が形成されていて、該開口部
は平時には車室側部材と同種の外観を有するエアバッグ
ドアによって覆われている。そして、一旦衝突などによ
って車両が大きな衝撃を受けたときには、前記開口部内
のエアバッグ収容部（キャニスター）に収納されている
エアバッグが作動し膨張して、このエアバッグの膨張に
よって前記展開開口部を覆っているエアバッグドアが押
し広げられ、該開口部より該エアバッグが車室内へ展開
し乗員を安全に保護する。2. Description of the Related Art For example, an airbag device for a passenger seat of an automobile is mounted inside a passenger compartment-side member (specifically, an instrument panel) in front of a passenger seat. An airbag deployment opening is formed in the vehicle-side member, and the opening is covered by an airbag door having the same type of appearance as the vehicle-side member in a normal state. Once the vehicle receives a large impact due to a collision or the like, the airbag accommodated in the airbag accommodating portion (canister) in the opening is actuated and inflated. The airbag door covering the door is pushed open, and the airbag is deployed into the vehicle compartment through the opening to safely protect the occupant.
【０００３】本発明者らは、先に、エアバッグドアがド
ア開度規制ベルトによって連結されていることを特徴と
する自動車用エアバッグドアの構造を提供した。The present inventors have previously provided a structure of an automobile airbag door, wherein the airbag door is connected by a door opening regulating belt.
【０００４】この構造によれば、エアバッグからの衝撃
エネルギーが開度規制ベルトの伸びによって緩和され開
放速度が減速されるとともに、開放位置が該ベルトによ
って規制されるのでフロントガラスへの激突を回避する
ことができドアやガラスの破損等のおそれが減少し安全
性の面でも有利である。According to this structure, the impact energy from the airbag is alleviated by the elongation of the opening regulating belt, the opening speed is reduced, and the opening position is regulated by the belt, so that a collision with the windshield is avoided. This can reduce the possibility of breakage of the door and glass, and is advantageous in terms of safety.
【０００５】しかしながら、かかる構造にあっては、ド
ア開度規制ベルトの端末の縫製加工や耐熱処理を必要と
するため、加工工程が煩雑となる問題がある。また、場
合によってはドア開度規制ベルトにバックル部材などを
取り付ける必要もあり、かかるエアバッグドアの製造コ
ストを上昇させる傾向にあった。However, such a structure requires sewing and heat-resistant treatment of the terminal of the door opening regulating belt, and thus has a problem that the working process becomes complicated. In some cases, it is necessary to attach a buckle member or the like to the door opening regulation belt, which tends to increase the manufacturing cost of such an airbag door.
【０００６】[0006]
【発明が解決しようとする課題】この発明は上記した問
題点に鑑み提案されたものであって、エアバッグドアの
開放エネルギーを一部吸収してその開度を調節し、エア
バッグ展開の際にエアバッグドアがフロントガラスなど
に当たるのを防ぐことができるエアバッグドアの開度規
制構造を提供しようとするものである。また、この発明
は、製造の際に複雑な加工工程を必要としない極めて経
済的な自動車用エアバッグドアの開度調節構造を提供し
ようとするものである。SUMMARY OF THE INVENTION The present invention has been proposed in view of the above-mentioned problems, and it has been proposed to adjust a degree of opening of an airbag by adjusting a degree of opening by partially absorbing the opening energy of the airbag door. Another object of the present invention is to provide an airbag door opening restriction structure that can prevent the airbag door from hitting a windshield or the like. Another object of the present invention is to provide an extremely economical structure for adjusting the opening of an airbag door for an automobile, which does not require a complicated processing step during manufacture.
【０００７】[0007]
【課題を解決するための手段】すなわち、この発明は、
エアバッグ収容部内に装置されたエアバッグの膨張展開
に伴ってヒンジ部を中心として回転開放されるエアバッ
グドアであって、該エアバッグドアの後部に、該エアバ
ッグドアの開放時に前記エアバッグ収容部と圧接して座
屈変形する開度調節部材を設けたことを特徴とする自動
車用エアバッグドアの開度調節構造に係る。That is, the present invention provides:
An airbag door which is opened and rotated around a hinge portion in accordance with inflation and deployment of an airbag provided in an airbag housing, wherein the airbag is provided at a rear portion of the airbag door when the airbag door is opened. The present invention relates to an opening adjustment structure for an airbag door for an automobile, wherein an opening adjustment member that buckles and deforms in contact with the housing portion is provided.
【０００８】[0008]
【作用】この発明構造によれば、エアバッグドアがヒン
ジ部を中心として回転し開放する際、エアバッグドアの
後部裏面に設けられた開度調節部材がエアバッグ収容部
と圧接して座屈変形する。それによって、エアバッグド
アの開放エネルギーの一部が吸収され、開放スピードが
減速される。According to the structure of the present invention, when the airbag door rotates around the hinge and opens, the opening adjustment member provided on the rear surface of the rear portion of the airbag door comes into pressure contact with the airbag housing and buckles. Deform. Thereby, a part of the opening energy of the airbag door is absorbed, and the opening speed is reduced.
【０００９】[0009]
【実施例】以下添付の図面に従ってこの発明を詳細に説
明する。図１はこの発明構造が設けられた自動車用エア
バッグドアの一例を示す断面図、図２はこの発明のエア
バッグドアの開度調節構造の一例を示す斜視図、図３は
図１においてエアバッグが展開した状態を示す断面図、
図４はこの発明構造の他の例を示す斜視図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a sectional view showing an example of an automobile airbag door provided with the structure of the present invention, FIG. 2 is a perspective view showing an example of an airbag door opening adjustment structure of the present invention, and FIG. Sectional view showing a state in which the bag is expanded,
FIG. 4 is a perspective view showing another example of the structure of the present invention.
【００１０】図１および図２に示されるように、この発
明構造は、エアバッグＢの展開にあたって、エアバッグ
ドア１０をフロントガラスや車室側部材２０などに当て
ることなく、確実かつ安全に開放せしめるための構造で
ある。エアバッグドア１０は、図２に示されるように、
所定のドア形状に形成された公知の構造よりなり、ヒン
ジ部１１を介して車室側部材に設けられたエアバッグ収
容部２１に取り付けられ、その開口部２２を覆ってい
る。As shown in FIGS. 1 and 2, when the airbag B is deployed, the airbag door 10 is securely and safely opened without the airbag door 10 being brought into contact with a windshield or a passenger compartment side member 20 as shown in FIGS. This is the structure for the exercise. The airbag door 10 is, as shown in FIG.
It has a well-known structure formed in a predetermined door shape, and is attached to an airbag accommodating portion 21 provided on a vehicle interior side member via a hinge portion 11 and covers an opening 22 thereof.
【００１１】ヒンジ部１１は回転孔１２と回転軸１３と
からなり、前記エアバッグドア１０の後部に設けられて
いる。このヒンジ部１１は、前記エアバッグドア１０の
後部両側に設けられた回転孔１２に回転軸１３を挿通
し、当該回転軸１３を車室側部材２０に取り付けること
によって構成され、エアバッグの膨張展開に伴い、前記
エアバッグドア１０を前記回動軸１３を中心として回転
し開放する。符号１４はエアバッグドア１０の裏側所定
位置に設けられた係止部材で、エアバッグドア１０が閉
じている時にはエアバッグ収容部２１の係止孔（図示せ
ず）に係止される。エアバッグの膨張時にはこの係止部
材１４が破断してドア１０が開かれる。The hinge 11 comprises a rotary hole 12 and a rotary shaft 13 and is provided at the rear of the airbag door 10. The hinge portion 11 is configured by inserting a rotation shaft 13 into rotation holes 12 provided on both sides of a rear portion of the airbag door 10 and attaching the rotation shaft 13 to a vehicle interior member 20, and inflating the airbag. With the deployment, the airbag door 10 rotates about the rotation shaft 13 and opens. Reference numeral 14 denotes a locking member provided at a predetermined position on the back side of the airbag door 10, and is locked in a locking hole (not shown) of the airbag housing portion 21 when the airbag door 10 is closed. When the airbag is inflated, the locking member 14 is broken and the door 10 is opened.
【００１２】前記エアバッグドア１０の後部裏側であっ
て、エアバッグドア１０の回転開放の際にエアバッグ収
容部と接する部分には、回動調節部材１５が設けられて
いる。この開度調節部材１５は、エアバッグドアの開放
エネルギーを一部吸収しその開度を規制するためのもの
で、ブロック状に形成された合成樹脂の硬質発泡体が接
着剤や両面テープなどによって貼着されている。また、
前記開度規制部材１５は、エアバッグドア１０が閉じて
いる状態でエアバッグ収容部２１の外周側壁と接して形
成される。A rotation adjusting member 15 is provided on the rear side of the rear portion of the airbag door 10 and in contact with the airbag housing when the airbag door 10 is rotated and opened. The opening degree adjusting member 15 is for absorbing a part of the opening energy of the airbag door and regulating the opening degree, and a rigid foam of a synthetic resin formed in a block shape is formed by an adhesive or a double-sided tape. It is stuck. Also,
The opening restricting member 15 is formed in contact with the outer peripheral side wall of the airbag housing 21 when the airbag door 10 is closed.
【００１３】前記開度調節部材１５は、図３から理解さ
れるように、エアバッグＢの展開に伴ってエアバッグド
ア１０が開放される際に、エアバッグ収容部２１と圧接
して座屈変形する。その際、前記エアバッグドア１０の
開放エネルギーを一部吸収し、その開放スピードを充分
減速するとともにその開度を規制する。それによって、
当該エアバッグドア１０が車室側部材やフロントガラス
などに当たって割れ、破片などが室内に散乱するという
危険がない。As can be understood from FIG. 3, when the airbag door 10 is opened with the deployment of the airbag B, the opening adjustment member 15 presses against the airbag housing 21 and buckles. Deform. At that time, the opening energy of the airbag door 10 is partially absorbed, the opening speed is sufficiently reduced, and the opening degree is regulated. Thereby,
There is no danger that the airbag door 10 hits a vehicle interior member, a windshield, or the like, breaks, and fragments are scattered in the room.
【００１４】前記開度調節部材１５として好ましい材質
は、ポリエチレンやポリプロピレンまたはポリフェニレ
ンオキサイドあるいはポリウレタンなどを発泡させるこ
とによって得られる硬質発泡体で、所定の圧縮圧力によ
って座屈するようになっている。この開度調節部材１５
は、エアバッグドアの開放の際に有するエネルギーに応
じて適宜の圧縮強度のものが選択されるが、その値が２
０ｋｇ／ｃｍ2 以下であることが好ましい。A preferable material for the opening adjusting member 15 is a rigid foam obtained by foaming polyethylene, polypropylene, polyphenylene oxide, polyurethane, or the like, which is buckled by a predetermined compression pressure. This opening adjustment member 15
Is selected from those having an appropriate compressive strength according to the energy possessed when the airbag door is opened.
It is preferably 0 kg / cm 2 or less.
【００１５】開度調節部材１５の形状は、前記したブロ
ック形状のほか、吸収するエネルギー量や開度調節部材
１５の材質などに応じてリブやハニカムなどが適宜に設
けられる。図４は開度調節部材１６に複数のリブ１７を
設けた例である。なお、図中の符号で図１と同一の符号
は同一の部材を示す。As the shape of the opening adjusting member 15, in addition to the block shape described above, ribs, honeycombs, and the like are appropriately provided according to the amount of energy to be absorbed and the material of the opening adjusting member 15. FIG. 4 shows an example in which a plurality of ribs 17 are provided on the opening adjustment member 16. Note that the same reference numerals in FIG. 1 as those in FIG. 1 indicate the same members.
【００１６】[0016]
【発明の効果】以上図示し説明したように、この発明の
自動車エアバッグドアの開度調節構造によれば、エアバ
ッグの開放の際にエアバッグ収容部と圧接して座屈する
開度調節部材が設けられているので、エアバッグドアの
開放エネルギーを確実に吸収してその開度を調節する。
それによって、エアバッグ展開の際にエアバッグドアが
フロントガラスなどに当たって破片などが飛散する危険
を回避することができる。また、この発明構造によれ
ば、合成樹脂発泡体よりなる開度調節部材をエアバッグ
ドアの所定部分に設けるだけであるから、複雑な加工工
程が不要で極めて経済的に実施することができる。As described above, according to the opening adjusting structure for an automobile airbag door of the present invention, the opening adjusting member buckles by being pressed against the airbag accommodating portion when the airbag is opened. Is provided, the opening energy of the airbag door is reliably absorbed to adjust the opening degree.
As a result, it is possible to avoid the danger that the airbag door hits the windshield or the like when the airbag is deployed, and fragments and the like are scattered. Further, according to the structure of the present invention, since only the opening adjustment member made of a synthetic resin foam is provided at a predetermined portion of the airbag door, a complicated processing step is not required and the operation can be performed extremely economically.
【図１】この発明構造が設けられた自動車用エアバッグ
ドアの一例を示す断面図である。FIG. 1 is a cross-sectional view showing an example of an automobile airbag door provided with the structure of the present invention.
【図２】この発明のエアバッグドアの開度調節構造の一
例を示す斜視図である。FIG. 2 is a perspective view showing an example of an airbag door opening adjustment structure of the present invention.
【図３】図１においてエアバッグが展開した状態を示す
断面図である。FIG. 3 is a cross-sectional view showing a state in which the airbag is deployed in FIG.
【図４】この発明構造の他の例を示す斜視図である。FIG. 4 is a perspective view showing another example of the structure of the present invention.
１０ エアバッグドア １１ ヒンジ部 １２ 回転孔 １３ 回転軸 １５ 開度調節部材 ２０ 車室側部材 ２１ エアバッグ収容部 Ｂ エアバッグ DESCRIPTION OF SYMBOLS 10 Airbag door 11 Hinge part 12 Rotation hole 13 Rotation axis 15 Opening adjustment member 20 Cabin side member 21 Airbag accommodation part B Airbag
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平７−2044（ＪＰ，Ａ) 実開 平４−136974（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) B60R 21/20 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-7-2044 (JP, A) JP-A-4-136974 (JP, U) (58) Fields investigated (Int. Cl. 7 , DB name) B60R 21/20
Claims (1)
ッグの膨張展開に伴ってヒンジ部を中心として回転開放
されるエアバッグドアであって、該エアバッグドアの後
部に、該エアバッグドアの開放時に前記エアバッグ収容
部と圧接して座屈変形する開度調節部材を設けたことを
特徴とする自動車用エアバッグドアの開度調節構造。1. An airbag door which is rotatably opened about a hinge portion in accordance with inflation and deployment of an airbag provided in an airbag housing, wherein the airbag door is provided at a rear portion of the airbag door. An opening adjusting structure for an airbag door for an automobile, wherein an opening adjusting member is provided which is buckled and deformed by being pressed against the airbag accommodating portion when opened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27790993A JP3312973B2 (en) | 1993-10-08 | 1993-10-08 | Automotive airbag door opening adjustment structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27790993A JP3312973B2 (en) | 1993-10-08 | 1993-10-08 | Automotive airbag door opening adjustment structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07108892A JPH07108892A (en) | 1995-04-25 |
| JP3312973B2 true JP3312973B2 (en) | 2002-08-12 |
Family
ID=17589989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27790993A Expired - Fee Related JP3312973B2 (en) | 1993-10-08 | 1993-10-08 | Automotive airbag door opening adjustment structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3312973B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6082760A (en) * | 1997-04-18 | 2000-07-04 | Toyota Jidosha Kabushiki Kaisha | Air bag apparatus for passenger seat |
| DE602007013086D1 (en) | 2006-09-29 | 2011-04-21 | Toyota Motor Co Ltd | Knee protection airbag device |
-
1993
- 1993-10-08 JP JP27790993A patent/JP3312973B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07108892A (en) | 1995-04-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |