JP3393754B2 - Occupant protection device - Google Patents
Occupant protection deviceInfo
- Publication number
- JP3393754B2 JP3393754B2 JP14179696A JP14179696A JP3393754B2 JP 3393754 B2 JP3393754 B2 JP 3393754B2 JP 14179696 A JP14179696 A JP 14179696A JP 14179696 A JP14179696 A JP 14179696A JP 3393754 B2 JP3393754 B2 JP 3393754B2
- Authority
- JP
- Japan
- Prior art keywords
- airbag
- covering
- seat back
- covering material
- sewn
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
- B60R21/207—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in vehicle seats
Landscapes
- Air Bags (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は，車両の側面衝突時
に，シートバックの内部に配置したエアバッグモジュー
ルからエアバッグを車室内に展開して乗員を保護する乗
員保護装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an occupant protection device that protects an occupant by deploying an airbag from an airbag module disposed inside a seat back in a vehicle interior in the event of a side collision of a vehicle.
【０００２】[0002]
【従来の技術】かかる乗員保護装置は，特開平６−６４
４９１号公報により公知である。上記従来のものは，エ
アバッグモジュールを側部ドアの内部或いはシートの内
部に装着しており，車両の側面衝突時にエアバッグを乗
員と側部ドアとの間に展開して乗員を拘束するようにな
っている。2. Description of the Related Art Such an occupant protection device is disclosed in Japanese Patent Laid-Open No. 6-64.
It is known from Japanese Patent No. 491. In the conventional device, the airbag module is mounted inside the side door or inside the seat, and the airbag is deployed between the occupant and the side door to restrain the occupant during a side collision of the vehicle. It has become.
【０００３】[0003]
【発明が解決しようとする課題】ところで，エアバッグ
モジュールを側部ドアの内部に装着すると，シートの位
置を前後に移動させたときに乗員とエアバッグとの位置
関係が変化してしまう問題があるが，エアバッグモジュ
ールをシートの内部に装着すると上記問題は解決され
る。しかしながら，シートの内部に装着したエアバッグ
モジュールから膨張するエアバッグはシートの被覆材を
破断して外部に展開するため，その被覆材を含むシート
の強度配分を適切に設定しないと，所望の方向にエアバ
ッグを展開させることが難しくなる。However, when the airbag module is mounted inside the side door, the positional relationship between the occupant and the airbag changes when the seat position is moved back and forth. However, the above problem can be solved by mounting the airbag module inside the seat. However, an airbag that inflates from an airbag module mounted inside the seat breaks the covering material of the seat and expands to the outside. Therefore, unless the strength distribution of the seat including the covering material is set appropriately, the desired direction is obtained. It becomes difficult to deploy the airbag to the.
【０００４】本発明は前述の事情に鑑みてなされたもの
で，シートの内部に装着したエアバッグモジュールから
エアバッグを車室内の正しい位置に展開させるべく，シ
ートの縫製部の所定部位を確実に破断することを目的と
する。The present invention has been made in view of the above-mentioned circumstances, and in order to deploy the airbag from the airbag module mounted inside the seat to the correct position in the vehicle compartment, a predetermined portion of the sewn portion of the seat is surely secured. Intended to break.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
に，請求項１に記載された発明は，シートバックの内部
にエアバッグモジュールを配置し，そのエアバッグモジ
ュールから膨張するエアバッグの圧力でシートバックの
前面を覆う被覆材と側面を覆う被覆材との縫製部を破断
し，そこに形成された開口からエアバッグを車室内に展
開させる乗員保護装置において，エアバッグモジュール
に収納したエアバッグの後面及び左右一側面を剛体壁で
覆い，同エアバッグの前面及び左右他側面を各々可撓性
部材よりなる前部保形材及び側部保形材でそれぞれ覆
い，その両保形材と前記両被覆材との間にパッドを配置
すると共に，該パッドを挟んで両保形材の縫製部を両被
覆材の縫製部に対向させたことを特徴とする。In order to achieve the above object, the invention as set forth in claim 1 has an airbag module disposed inside a seat back, and a pressure of an airbag inflated from the airbag module. In the occupant protection device in which the sewn portion of the covering material that covers the front surface of the seat back and the covering material that covers the side surfaces is broken, and the airbag is deployed into the passenger compartment through the opening formed in the occupant protection device, The rear surface of the bag and one side surface are covered with a rigid wall, and the front surface and the other side surfaces of the airbag are flexible.
Cover with front shape retention material and side shape retention material
A pad is placed between the shape-retaining material and the covering material.
And sew both sewn parts of the shape retainer with the pad in between.
It is characterized in that it is opposed to the sewn portion of the covering material .
【０００６】また請求項２に記載された発明は，シート
バックの内部にエアバッグモジュールを配置し，そのエ
アバッグモジュールから膨張するエアバッグの圧力でシ
ートバックの前面を覆う比較的に厚肉の被覆材と側面を
覆う比較的に薄肉の被覆材との縫製部を破断し，そこに
形成された開口からエアバッグを車室内に展開させる乗
員保護装置において，シートバックの側面を覆う比較的
に薄肉の被覆材及びエアバッグモジュール間に配置した
側部保形材の剛性を，シートバックの前面を覆う比較的
に厚肉の被覆材及びエアバッグモジュール間に配置した
前部保形材の剛性よりも高く設定したことを特徴とす
る。According to the second aspect of the invention, the airbag module is arranged inside the seat back, and the pressure of the airbag inflating from the airbag module covers the front surface of the seat back. In a passenger protection device in which a sewn portion between a covering material and a relatively thin covering material that covers a side surface is broken and an airbag is deployed into a vehicle compartment through an opening formed therein, a side surface of a seat back is relatively covered. The rigidity of the side shape retainer placed between the thin-walled cover material and the airbag module is the rigidity of the relatively thick-walled cover material covering the front surface of the seat back and the front shape retainer placed between the airbag modules. It is characterized by being set higher than.
【０００７】また請求項３に記載された発明は，シート
バックの内部にエアバッグモジュールを配置し，そのエ
アバッグモジュールから膨張するエアバッグの圧力でシ
ートバックの前面を覆う被覆材と側面を覆う被覆材との
縫製部を破断し，そこに形成された開口からエアバッグ
を車室内に展開させる乗員保護装置において，シートバ
ックの側面を覆う被覆材及びエアバッグモジュール間に
配置した側部保形材と，シートバックの前面を覆う被覆
材及びエアバッグモジュール間に配置した前部保形材
と，その両保形材と前記両被覆材との間に配置したパッ
ドとを備え，前記両保形材には，縫製代を前記パッド側
に突出させた縫製部が設けられ，この縫製部と，前記両
被覆材の縫製部との間の前記パッドに，その厚さが周辺
部の厚さよりも薄い薄肉部が形成されることを特徴とす
る。 According to the third aspect of the invention, the airbag module is arranged inside the seat back, and the covering material for covering the front surface of the seat back and the side surface are covered by the pressure of the airbag expanding from the airbag module. broken sewing portion of the covering member, the occupant protection device to deploy into the passenger compartment airbag therefrom formed an opening, Shitoba
Between the cover and the airbag module that covers the side of the
Placed side shape retention material and covering that covers the front of the seat back
Front shape retention material placed between the material and the airbag module
And a pad disposed between the shape-retaining material and the covering material, and the shape-retaining material includes a sewing allowance on the pad side.
The protruding sewing part is provided on the
The thickness between the pad and the sewn part of the covering material is around
It is characterized in that a thin portion thinner than the thickness of the portion is formed .
【０００８】[0008]
【発明の実施の形態】以下，本発明の実施の形態を，添
付図面に示した本発明の実施例に基づいて説明する。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an embodiment of the present invention will be described based on an embodiment of the present invention shown in the accompanying drawings.
【０００９】図１〜図５は本発明の一実施例を示すもの
で，図１はエアバッグ装置を備えたシートの側面図，図
２は図１の２方向矢視図，図３は図１の３−３線拡大断
面図，図４は玉縁の縫製方法の説明図，図５はエアバッ
グ展開時の作用説明図である。1 to 5 show an embodiment of the present invention, FIG. 1 is a side view of a seat provided with an airbag device, FIG. 2 is a view in the direction of arrow 2 of FIG. 1, and FIG. 1 is an enlarged sectional view taken along line 3-3 of FIG. 1, FIG. 4 is an explanatory view of a method for sewing a bead, and FIG. 5 is an explanatory view of an action when an airbag is deployed.
【００１０】図１及び図２に示すように，自動車のフロ
ントシートＳは，略水平に配置されたシートクッション
１と，シートクッション１の後端から後上方に延びるシ
ートバック２と，シートバック２の上端に設けられたヘ
ッドレスト３とから構成される。シートバック２の右側
面にはセンターピラー４が臨んでおり，そのセンターピ
ラー４の前部にフロントドア５が配置される。フロント
シートＳのシートバック２の右側内部にはエアバッグモ
ジュールＭが収納されており，エアバッグモジュールＭ
の作動時にエアバッグ６はシートバック２の縫製部を破
断して押し開き，シートＳに座乗した乗員の右側面とセ
ンターピラー４及びフロントドア５の左側面との間を遮
るように斜め前方に展開する。As shown in FIGS. 1 and 2, a front seat S of an automobile has a seat cushion 1 arranged substantially horizontally, a seat back 2 extending rearward and upward from a rear end of the seat cushion 1, and a seat back 2. And a headrest 3 provided on the upper end of the. A center pillar 4 faces the right side surface of the seat back 2, and a front door 5 is arranged in front of the center pillar 4. The airbag module M is housed inside the right side of the seat back 2 of the front seat S.
When the airbag is operated, the airbag 6 breaks the sewn portion of the seat back 2 and pushes it open, and diagonally forward so as to block between the right side surface of the occupant sitting on the seat S and the left side surfaces of the center pillar 4 and the front door 5. Expand to.
【００１１】図３に示すシートバック２の横断面から明
らかなように，シートバック２の右側縁に沿って上下方
向に延びるパイプフレーム１１に車体前方に延びる金属
製のエアバッグモジュール取付ブラケット１２と，車体
内側に延びる金属製のリテーナ１３とが溶接により固定
される。エアバッグモジュール取付ブラケット１２の右
側面に，エアバッグモジュールＭが各２個のボルト１
４，１４及びナット１５，１５により固定される。パイ
プフレーム１１の右側面からエアバッグモジュールＭの
右側面にかけては，プレスフェルトよりなる側部保形材
１６により覆われており，また前記側部保形材１６の前
端に縫製部１７により縫製された粗毛布よりなる前部保
形材１８は，エアバッグモジュールＭの前面を覆ってシ
ートバック２の厚さ方向中間部を車体左側に延び，車体
左側のパイプフレーム（図示せず）に接続される。プレ
スフェルトよりなる側部保形材１６は比較的に硬質であ
り，粗毛布よりなる前部保形材１８は前記プレスフェル
トよりも軟質である。As is apparent from the cross section of the seat back 2 shown in FIG. 3, a metal air bag module mounting bracket 12 extending forward of the vehicle body is attached to a pipe frame 11 extending vertically along the right side edge of the seat back 2. The metal retainer 13 extending inside the vehicle body is fixed by welding. On the right side of the airbag module mounting bracket 12, the airbag module M has two bolts 1 each.
It is fixed by 4, 14 and nuts 15, 15. The right side surface of the pipe frame 11 to the right side surface of the airbag module M is covered with a side shape retaining material 16 made of press felt, and is sewn to the front end of the side shape retaining material 16 with a sewing portion 17. The front shape-retaining material 18 made of a rough blanket covers the front surface of the airbag module M and extends to the left side of the vehicle body at the middle portion in the thickness direction of the seat back 2 and is connected to a pipe frame (not shown) on the left side of the vehicle body. It The side shape retainer 16 made of press felt is relatively hard, and the front shape retainer 18 made of rough blanket is softer than the press felt.
【００１２】パイプフレーム１１の内周にはメッシュ状
のスプリング１９が張設されており，このスプリング１
９の前面と，前部保形材１８の後面と，エアバッグモジ
ュール取付ブラケット１３の後面とに囲まれた部分にス
ポンジよりなるパッド２０が装着される。また側部保形
材１６及び前部保形材１８の前面には，同じくスポンジ
よりなるパッド２１が装着される。A mesh-shaped spring 19 is stretched around the inner circumference of the pipe frame 11.
A pad 20 made of sponge is attached to a portion surrounded by the front surface of the sheet metal 9, the rear surface of the front shape retainer 18, and the rear surface of the airbag module mounting bracket 13. Pads 21 also made of sponge are attached to the front surfaces of the side shape retaining material 16 and the front shape retaining material 18.
【００１３】シートバック２の前面中央部は第１被覆材
２２により覆われるとともに，その第１被覆材２２の左
右両側部及び上部は第２被覆材２３により覆われ，更に
第２被覆材２３に連なるシートバック２の左右両側面及
び上面は第３被覆材２４により覆われる。そしてシート
バック２の後面は，樹脂板２５1 の表面をスポンジより
なるワディング２５2 及び革や布でよりなる表皮材２５
3 で覆った第４被覆材２５により覆われる。The central portion of the front surface of the seat back 2 is covered with the first covering material 22, and the left and right side portions and the upper portion of the first covering material 22 are covered with the second covering material 23. The left and right side surfaces and the upper surface of the continuous seat back 2 are covered with the third covering material 24. On the rear surface of the seat back 2, the surface of the resin plate 25 1 is covered with a wadding 25 2 made of sponge and a skin material 25 made of leather or cloth.
It is covered with the fourth covering material 25 covered with 3 .
【００１４】前記第１被覆材２２，第２被覆材２３及び
第３被覆材２４は実質的に同じ構造を備えており，それ
ぞれ前記パッド２１に当接するワディングカバー２
２1 ，２３1 ，２４1 と，このワディングカバー２
２1 ，２３1 ，２４1 の前面に一体に結合された薄いス
ポンジよりなるワディング２２2 ，２３2 ，２４2 と，
ワディング２２2 ，２３2 ，２４2 の前面に重ね合わさ
れた革或いは布よりなる表皮材２２3 ，２３3 ，２４3
とから構成される。第１被覆材２２と第２被覆材２３と
は縫製部３４において縫製される。また第２被覆材２３
と第３被覆材２４とは縫製部２６において縫製され，そ
の際に前記縫製部２６には，合成樹脂製の芯材４４の外
周を革或いは布よりなる表皮材で覆った玉縁２７が一体
に縫製される。玉縁２７は，芯材４４を覆う本体部２７
1 及び該本体部２７1 から延びる脚部２７2 から構成さ
れる。The first covering material 22, the second covering material 23, and the third covering material 24 have substantially the same structure, and the wadding cover 2 that abuts on the pad 21 respectively.
2 1 , 23 1 , 24 1 and this wadding cover 2
Wadings 22 2 , 23 2 , 24 2 made of thin sponge integrally bonded to the front surfaces of 2, 1 , 23 1 , 24 1 , and
Skin material 22 3 , 23 3 , 24 3 made of leather or cloth laminated on the front surface of the wading 22 2 , 23 2 , 24 2.
Composed of and. The first covering material 22 and the second covering material 23 are sewn at the sewing portion 34. The second coating material 23
The third covering member 24 and the third covering member 24 are sewn together at the sewn portion 26. At this time, a bead 27 in which the outer periphery of the synthetic resin core member 44 is covered with a skin material made of leather or cloth is integrally formed with the sewn portion 26. Sewn on. The bead 27 is a main body 27 that covers the core material 44.
1 and a leg portion 27 2 extending from the main body portion 27 1 .
【００１５】縫製部３４から延びる舌片２８の先端にク
リップ２９が設けられており，このクリップ２９をパッ
ド２１に埋設したアンカー３０に係止することにより，
第１被覆材２２及び第２被覆材２３が所定形状に保持さ
れる。また第３被覆材２４の後端の縫製部３１から延び
る舌片３２の先端にクリップ３３が設けられており，こ
のクリップ３３を前記リテーナ１３に係止することによ
り，第３被覆材２４が固定される。A clip 29 is provided at the tip of the tongue 28 extending from the sewn portion 34. By locking the clip 29 to the anchor 30 embedded in the pad 21,
The first coating material 22 and the second coating material 23 are held in a predetermined shape. A clip 33 is provided at the tip of a tongue piece 32 extending from the sewn portion 31 at the rear end of the third covering material 24. By locking the clip 33 to the retainer 13, the third covering material 24 is fixed. To be done.
【００１６】エアバッグモジュールＭの構造を更に説明
すると，ホルダー４１はＪ字状断面を有する本体部４１
1 と，この本体部４１1 の一側縁から延びるクランプ部
４１2 とを備えており，これら本体部４１1 及びクラン
プ部４１2 により形成される円形断面部に，内部に推薬
を充填した概略円筒状のインフレータ４２が嵌合する。
ホルダー４１及びインフレータ４２は，折り畳まれたエ
アバッグ６の基端部に包まれている。To further explain the structure of the airbag module M, the holder 41 has a body portion 41 having a J-shaped cross section.
1 and comprises a clamp portion 41 2 extending from one side edge of the main body portion 41 1, a circular cross section formed by these main body 41 1 and the clamp portion 41 2, was filled with propellant therein A substantially cylindrical inflator 42 is fitted.
The holder 41 and the inflator 42 are wrapped in the base end of the folded airbag 6.
【００１７】展開したエアバッグ６の先端部６1 は上下
方向寸法が大きく左右方向寸法が小さく成形されており
（図１及び図２参照），その先端部６1 の長手方向（上
下方向）は側部保形材１６及び前部保形材１８の縫製部
１７と，第２被覆材２３及び第３被覆材２４の縫製部２
６とに対して略平行になっている。また側部保形材１６
及び前部保形材１８の，縫製代をパッド２１側に突出さ
せた縫製部１７と，第２被覆材２３及び第３被覆材２４
の縫製部２６との間のパッド２１に，その厚さＴが周辺
部の厚さよりも薄い薄肉部２１1 が形成されている。The tip portion 6 1 of the expanded airbag 6 is formed to have a large vertical dimension and a small horizontal dimension (see FIGS. 1 and 2). The longitudinal direction (vertical direction) of the tip portion 6 1 is Sewn portion 17 of side shape retaining material 16 and front shape retaining material 18 and sewn portion 2 of second covering material 23 and third covering material 24
It is substantially parallel to 6. Also, the side shape retention material 16
Also , the sewing allowance of the front shape retainer 18 is projected to the pad 21 side.
A sewn portion 17 which has a second coating material 23 and the third cover member 24
A thin portion 21 1 having a thickness T smaller than that of the peripheral portion is formed on the pad 21 between the sewing portion 26 and the sewn portion 26.
【００１８】折り畳まれたエアバッグ６は，左側面及び
後面が剛体壁を構成するホルダー４１の本体部４１1 及
びクランプ部４１2 にそれぞれ対向し，右側面が側部保
形材１６に対向し，前面が前部保形材１８に対向してい
る。エアバッグ６の左側面及び後面が対向するホルダー
４１は金属製の剛体であるのに対し，エアバッグ６の右
側面及び前面が対向する側部保形材１６及び前部保形材
１８は可撓性部材であり，しかも比較的に脆弱な縫製部
１７で縫製されているので，剛体であるホルダー４１か
ら受ける反力により，エアバッグ６は側部保形材１６及
び前部保形材１８の縫製部１７と，第２被覆材２３及び
第３被覆材２４の縫製部２６とに向けて斜め右前方に展
開する（図３の矢印Ａ参照）。The folded airbag 6 has a left side surface and a rear surface that face the main body portion 41 1 and the clamp portion 41 2 of the holder 41 that form a rigid wall, and a right side surface that faces the side shape retention member 16. The front surface faces the front shape retaining material 18. The holder 41, on which the left side surface and the rear surface of the airbag 6 face each other, is a rigid body made of metal, while the side shape member 16 and the front shape member 18 on which the right side surface and the front surface of the airbag 6 face each other can be formed. Since it is a flexible member and is sewn with the relatively weak sewn portion 17, the airbag 6 receives the side shape retainer 16 and the front shape retainer 18 by the reaction force received from the holder 41 which is a rigid body. The sewn portion 17 and the sewn portion 26 of the second covering material 23 and the third covering material 24 are developed diagonally to the front right (see arrow A in FIG. 3).
【００１９】図４（Ａ）に示すように，第２被覆材２
３，第３被覆材２４及び玉縁２７の脚部２７2 を一体に
縫製する縫製部２６は，玉縁２７の本体部２７1 から遠
い側の仮縫い部２６1 と，玉縁２７の本体部２７1 に近
い側の本縫い部２６2 とを備える。仮縫い部２６1 は，
第２被覆材２３のワディングカバー２３1 及び表皮材２
３3 ，並びに２重になった玉縁２７の脚部２７2 を一体
に縫製しており，また本縫い部２６2 は，第２被覆材２
３のワディングカバー２３1 及び表皮材２３3 ，２重に
なった玉縁２７の脚部２７2 ，並びに第３被覆材２４の
ワディングカバー２４1 及び表皮材２４3 を一体に縫製
している。玉縁２７の本体部２７1 に近い側を本縫い部
２６2 とすることにより，シートＳの外観品質の低下を
防止することができる。As shown in FIG. 4A, the second coating material 2
3, the sewn portion 26 sewing the leg 27 2 of the third cover member 24 and the beaded 27 integrally includes a basting portion 26 1 of the far side from the main body portion 27 1 of the beaded 27, the main body portion of the welt 27 And a lock stitch portion 26 2 on the side close to 27 1 . The sewn part 26 1 is
The wadding cover 23 1 of the second covering material 23 and the skin material 2
3 3 and the leg portion 27 2 of the doubled bead 27 are integrally sewn, and the lock stitch portion 26 2 is the second covering material 2
The wading cover 23 1 and the skin material 23 3 of No. 3, the leg portion 27 2 of the doubled bead 27, and the wading cover 24 1 and the skin material 24 3 of the third covering material 24 are integrally sewn. By making the side close to the main body portion 27 1 of the bead 27 to be the lock stitch portion 26 2 , it is possible to prevent deterioration of the appearance quality of the sheet S.
【００２０】次に，前述の構成を備えた本発明の実施例
の作用について説明する。Next, the operation of the embodiment of the present invention having the above construction will be described.
【００２１】車両の衝突時にインフレータ４２が発生す
るガスで膨張するエアバッグ６は，その左側方及び後方
への膨張がホルダー４１により規制されているため，前
記ホルダー４１から離反する方向に，即ち斜め右前方に
膨張する。その結果，側部保形材１６及び前部保形材１
８の縫製部１７と，パッド２１の薄肉部２１1 と，第２
被覆材２３及び第３被覆材２４の縫製部２６とが破断
し，そこに形成された開口４８からエアバッグ６が展開
する。The airbag 6, which is inflated by the gas generated by the inflator 42 when the vehicle collides, is restricted in its leftward and rearward inflation by the holder 41. Inflate right forward. As a result, the side shape retaining material 16 and the front shape retaining material 1
8 sewn portion 17, thin portion 21 1 of pad 21, second
The covering material 23 and the sewn portion 26 of the third covering material 24 are broken, and the airbag 6 is deployed from the opening 48 formed therein.
【００２２】このとき，前記両縫製部１７，２６の間に
は剛性が低く容易に破断するパッド２１の薄肉部２１1
が位置しているため，それら縫製部１７，２６にエアバ
ッグ６の膨張力を集中させて確実に破断することができ
る。またエアバッグ６の先端部６1 は上下方向に長く左
右方向に短い縦長の形状を有するため，その先端部６1
の長手方向が両縫製部１７，２６の方向と略平行にな
る。これにより，膨張するエアバッグ６の先端部６1 の
圧力を縫製部１７，２６に効果的に伝達し，該縫製部１
７，２６を確実に破断することができる。At this time, the thin portion 21 1 of the pad 21 having low rigidity and easily broken is provided between the sewn portions 17 and 26.
Is located, the inflating force of the airbag 6 can be concentrated on the sewn portions 17 and 26 and the airbag 6 can be reliably broken. Further, since the tip portion 6 1 of the airbag 6 has a vertically long shape that is long in the up-down direction and short in the left-right direction, its tip portion 6 1
Is substantially parallel to the direction of both sewn portions 17, 26. As a result, the pressure of the inflating tip portion 6 1 of the airbag 6 is effectively transmitted to the sewn portions 17 and 26, and the sewn portion 1 1
7 and 26 can be reliably broken.
【００２３】ところで，側部保形材１６の外側ではパッ
ド２１の肉厚が比較的に薄く，前部保形材１８の外側で
はパッド２１の肉厚が比較的に厚いために，側部保形材
１６の剛性と前部保形材１８の剛性とに差異がない場合
には，隣接するパッド２１の肉厚が薄い側部保形材１６
が容易に破断してしまう。その結果，エアバッグ６の膨
張力が第３被覆材２４の方向に作用してしまい，縫製部
１７，薄肉部２１1 及び縫製部２６が破断する前に第３
被覆材２４が破断し，エアバッグ６を斜め右前方に展開
させることができなくなる。By the way, since the thickness of the pad 21 is relatively thin outside the side shape retaining material 16 and the thickness of the pad 21 is relatively thick outside the front shape retaining material 18, the side shape retaining material 18 is relatively thick. When there is no difference between the rigidity of the shape member 16 and the rigidity of the front shape maintaining member 18, the side shape maintaining member 16 where the thickness of the adjacent pad 21 is thin.
Will break easily. As a result, the expansion force of the airbag 6 ends up acting in the direction of the third covering member 24, a third before the sewing unit 17, the thin-walled portion 21 1 and the sewn portion 26 is broken
The covering material 24 breaks, and the airbag 6 cannot be deployed diagonally forward right.
【００２４】しかしながら，本実施例の如く隣接するパ
ッド２１の肉厚が薄い側部保形材１６を剛性の高いプレ
スフェルトで構成し，隣接するパッド２１の肉厚が厚い
前部保形材１８を剛性の低い粗毛布で構成したので，側
部保形材１６及び前部保形材１８の撓み量を略均等に
し，エアバッグ６の膨張力を縫製部１７，薄肉部２１1
及び縫製部２６に正しく指向させることができる。However, as in the present embodiment, the side shape-retaining material 16 with the thin wall thickness of the adjacent pad 21 is made of press felt having high rigidity, and the front shape-retaining material 18 with the thick wall thickness of the adjacent pad 21 is formed. Since it is composed of a coarse blanket having low rigidity, the side shape retaining material 16 and the front shape retaining material 18 are made to have substantially the same bending amount, and the inflation force of the airbag 6 is increased by the sewing portion 17 and the thin portion 21 1.
And, it is possible to correctly orient the sewing portion 26.
【００２５】また，エアバッグ６の膨張により第２被覆
材２３，第３被覆材２４及び玉縁２７を一体に縫製する
縫製部２６が破断するとき，玉縁２７に対して第２被覆
材２３及び第３被覆材２４の両方が分離してしまうと，
第２被覆材２３及び第３被覆材２４間に形成された開口
４８から展開するエアバッグ６が，前記開口４８内に残
留する玉縁２７に遮られてスムーズに展開することがで
きなくなる。Further, when the sewn portion 26 that integrally sewes the second covering material 23, the third covering material 24 and the bead 27 is broken due to the expansion of the airbag 6, the second covering material 23 with respect to the bead 27 is broken. If both and the third covering material 24 are separated,
The airbag 6, which is deployed from the opening 48 formed between the second coating material 23 and the third coating material 24, is blocked by the bead 27 remaining in the opening 48 and cannot be deployed smoothly.
【００２６】しかしながら，図４（Ａ）に示すように，
第２被覆材２３と玉縁２７とは仮縫い部２６1 及び本縫
い部２６2 により２重に縫製されているのに対し，第３
被覆材２４と玉縁２７とは本縫い部２６2 のみにより縫
製されているので，エアバッグ６の圧力が作用したとき
に，縫製強度の弱い第３被覆材２４と玉縁２７との間で
本縫い部２６2 が破断する。その結果，図４（Ｂ）及び
図５に示すように，玉縁２７は第３被覆材２４から分離
して第２被覆材２３と一体に移動するため，玉縁２７は
第２被覆材２３及び第３被覆材２４間に形成される開口
４８に残留することがなくなり，エアバッグ６のスムー
ズな展開が保証される。However, as shown in FIG.
The second covering member 23 and the bead 27 are doubly sewn by the temporary stitch portion 26 1 and the lock stitch portion 26 2 , whereas
Since the covering material 24 and the bead 27 are sewn only by the lock stitch portion 26 2 , when the pressure of the airbag 6 is applied, the covering material 24 and the bead 27 are weakly sewn together. The lock stitch portion 26 2 is broken. As a result, as shown in FIGS. 4 (B) and 5, the bead 27 separates from the third covering material 24 and moves integrally with the second covering material 23, so that the bead 27 becomes the second covering material 23. Also, the air bag 6 is not left in the openings 48 formed between the third covering materials 24, and the smooth deployment of the airbag 6 is guaranteed.
【００２７】以上，本発明の実施例を詳述したが，本発
明はその要旨を逸脱しない範囲で種々の設計変更を行う
ことが可能である。Although the embodiment of the present invention has been described in detail above, the present invention can be modified in various ways without departing from the scope of the invention.
【００２８】例えば，側部保形材１６，前部保形材１
８，パッド２０，２１，第１〜第３被覆材２２，２３，
２４，玉縁２７等の材質は実施例のものに限定されず，
適宜の材質を選択することができる。For example, the side shape retaining material 16 and the front shape retaining material 1
8, pads 20, 21, first to third covering materials 22, 23,
The material of 24, bead 27, etc. is not limited to that of the embodiment,
Appropriate materials can be selected.
【００２９】[0029]
【発明の効果】以上のように，請求項１に記載された発
明によれば，エアバッグモジュールに収納したエアバッ
グの後面及び左右一側面を剛体壁で覆い, 同エアバッグ
の剛体壁とは反対側の面，即ち前面及び左右他側面を各
々可撓性部材よりなる前部保形材及び側部保形材でそれ
ぞれ覆い，その両保形材の縫製部をパッドを挟んで両被
覆材の縫製部に対向させたので，エアバッグが剛体壁か
ら受ける反力により，エアバッグを，両保形材の縫製部
と，両被覆材の縫製部とに向けて斜め前方に展開するよ
うに膨張させ，その膨張圧力で縫製部を確実に破断する
ことができる。As described above, according to the invention described in claim 1, the rear surface and the left and right side surfaces of the airbag housed in the airbag module are covered with a rigid body wall, and the airbag is provided.
The rigid wall surface opposite, namely a front and left and right other side each
The front shape and side shape made of flexible materials
Cover each of them, and put the pad between the sewn parts of both shape retainers.
Since is opposed to the sewn portion of Kutsugaezai, by a reaction force of the air bag receives from a rigid wall, the air bag, the sewn portion of Ryohogata member
And, it will be deployed diagonally forward toward the sewn part of both covering materials.
The sewn portion can be reliably broken by the expansion pressure.
【００３０】また請求項２に記載された発明によれば，
シートバックの側面を覆う比較的に薄肉の被覆材及びエ
アバッグモジュール間に配置した側部保形材の剛性を，
シートバックの前面を覆う比較的に厚肉の被覆材及びエ
アバッグモジュール間に配置した前部保形材の剛性より
も高く設定したので，エアバッグの膨張圧力で前記薄肉
の被覆材が破断するのを防止して縫製部を確実に破断す
ることができる。According to the invention described in claim 2,
The rigidity of the relatively thin wall covering that covers the side of the seat back and the side shape retention material that is placed between the airbag modules
Since the rigidity of the comparatively thick covering material covering the front surface of the seat back and the front shape retaining material arranged between the airbag modules is set to be higher than the rigidity, the thin covering material is broken by the inflation pressure of the airbag. It is possible to reliably prevent the sewn portion from being broken.
【００３１】また請求項３に記載された発明によれば，
シートバック側面を覆う被覆材及びエアバッグモジュー
ル間に配置した側部保形材と，シートバック前面を覆う
被覆材及びエアバッグモジュール間に配置した前部保形
材と，その両保形材と両被覆材との間に配置したパッド
とを備え，両保形材には，縫製代をパッド側に突出させ
た縫製部が設けられ，この縫製部と，両被覆材の縫製部
との間のパッドに薄肉部が形成されるので，エアバッグ
の膨張圧力でパッドの前記薄肉部が容易に破断する。こ
れにより前記膨張圧力を両被覆材の縫製部に直接伝達
し，該縫製部を確実に破断することができる。 According to the invention described in claim 3,
Covering material that covers the side of the seat back and airbag module
The side shape retention material placed between the seat and the front of the seat back
Front shape retention between dressing and airbag module
Material and the pad placed between the shape-retaining material and the covering material
With both shape retainers, the sewing allowance is projected to the pad side.
Sewn part is provided, and this sewn part and the sewn part of both covering materials
Since the thin portion is formed in the pad between the pad and the pad, the thin portion of the pad is easily broken by the inflation pressure of the airbag. Thereby directly transmitting the inflation pressure in the sewn portion of the covered material, Ru can be reliably broken suture manufactured unit.
【図１】エアバッグ装置を備えたシートの側面図FIG. 1 is a side view of a seat including an airbag device.
【図２】図１の２方向矢視図FIG. 2 is a two-direction arrow view of FIG.
【図３】図１の３−３線拡大断面図3 is an enlarged sectional view taken along line 3-3 of FIG.
【図４】玉縁の縫製方法の説明図FIG. 4 is an explanatory view of a method for sewing a bead.
【図５】エアバッグ展開時の作用説明図FIG. 5 is an explanatory view of the action when the airbag is deployed.
２ シートバック ６ エアバッグ ６1 先端部 １６ 側部保形材１７ 縫製部 １８ 前部保形材 ２１ パッド ２１1 薄肉部 ２３ 第２被覆材（被覆材） ２４ 第３被覆材（被覆材） ２６ 縫製部 ４１ ホルダー（剛体壁） ４８ 開口 Ｌ 軸線 Ｍ エアバッグモジュール2 Seat back 6 Air bag 6 1 Tip part 16 Side shape material 17 Sewing part 18 Front shape material 21 Pad 21 1 Thin part 23 Second covering material (covering material) 24 Third covering material (covering material) 26 Sewing part 41 Holder (rigid wall) 48 Opening L Axis M Air bag module
フロントページの続き (56)参考文献 特開 平７−215159（ＪＰ，Ａ) 特開 平９−286298（ＪＰ，Ａ) 特開 平８−258661（ＪＰ，Ａ) 特開 平９−323609（ＪＰ，Ａ) 特開 平６−64491（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) B60R 21/16 - 21/32 Continuation of the front page (56) Reference JP-A-7-215159 (JP, A) JP-A-9-286298 (JP, A) JP-A-8-258661 (JP, A) JP-A-9-323609 (JP , A) JP-A-6-64491 (JP, A) (58) Fields investigated (Int.Cl. 7 , DB name) B60R 21/16-21/32
Claims (3)
モジュール（Ｍ）を配置し，そのエアバッグモジュール
（Ｍ）から膨張するエアバッグ（６）の圧力でシートバ
ック（２）の前面を覆う被覆材（２３）と側面を覆う被
覆材（２４）との縫製部（２６）を破断し，そこに形成
された開口（４８）からエアバッグ（６）を車室内に展
開させる乗員保護装置において， エアバッグモジュール（Ｍ）に収納したエアバッグ
（６）の後面及び左右一側面を剛体壁（４１）で覆い，
同エアバッグ（６）の前面及び左右他側面を各々可撓性
部材よりなる前部保形材（１８）及び側部保形材（１
６）でそれぞれ覆い，その両保形材（１８，１６）と前
記両被覆材（２４，２６）との間にパッド（２１）を配
置すると共に，該パッド（２１）を挟んで両保形材（１
８，１６）の縫製部（１７）を両被覆材（２３，２４）
の縫製部（２６）に対向させたことを特徴とする乗員保
護装置。1. An airbag module (M) is arranged inside the seat back (2), and the front surface of the seat back (2) is covered by the pressure of an airbag (6) inflated from the airbag module (M). An occupant protection device in which a sewn portion (26) of a covering material (23) and a covering material (24) covering a side surface is broken, and an airbag (6) is deployed into a vehicle compartment through an opening (48) formed therein. , The rear surface and one side surface of the airbag (6) housed in the airbag module (M) are covered with a rigid wall (41),
The front surface of the airbag (6) and the left and right side surfaces are respectively flexible.
Front shape retainer (18) and side shape retainer (1)
6) Cover each with shape retention material (18, 16) and front
The pad (21) is placed between the two covering materials (24, 26).
Both shape-retaining materials (1
8 and 16) sewn part (17) with both covering materials (23, 24)
The occupant protection device, which is opposed to the sewn part (26).
モジュール（Ｍ）を配置し，そのエアバッグモジュール
（Ｍ）から膨張するエアバッグ（６）の圧力でシートバ
ック（２）の前面を覆う比較的に厚肉の被覆材（２３）
と側面を覆う比較的に薄肉の被覆材（２４）との縫製部
（２６）を破断し，そこに形成された開口（４８）から
エアバッグ（６）を車室内に展開させる乗員保護装置に
おいて， シートバック（２）の側面を覆う比較的に薄肉の被覆材
（２４）及びエアバッグモジュール（Ｍ）間に配置した
側部保形材（１６）の剛性を，シートバック（２）の前
面を覆う比較的に厚肉の被覆材（２３）及びエアバッグ
モジュール（Ｍ）間に配置した前部保形材（１８）の剛
性よりも高く設定したことを特徴とする乗員保護装置。2. An air bag module (M) is arranged inside the seat back (2) and the front surface of the seat back (2) is covered by the pressure of the air bag (6) inflated from the air bag module (M). Relatively thick wall coverings (23)
An occupant protection device that breaks a sewn portion (26) with a relatively thin covering material (24) that covers the side surface of the airbag and deploys the airbag (6) into the passenger compartment through an opening (48) formed therein. , The rigidity of the side shape-retaining material (16) arranged between the airbag module (M) and the relatively thin covering material (24) that covers the side surface of the seatback (2) is determined by the front surface of the seatback (2). The occupant protection device is characterized in that the rigidity is set higher than the rigidity of the front shape-retaining material (18) arranged between the relatively thick covering material (23) and the airbag module (M).
モジュール（Ｍ）を配置し，そのエアバッグモジュール
（Ｍ）から膨張するエアバッグ（６）の圧力でシートバ
ック（２）の前面を覆う被覆材（２３）と側面を覆う被
覆材（２４）との縫製部（２６）を破断し，そこに形成
された開口（４８）からエアバッグ（６）を車室内に展
開させる乗員保護装置において，シートバック（２）の側面を覆う被覆材（２４）及びエ
アバッグモジュール（Ｍ）間に配置した側部保形材（１
６）と，シートバック（２）の前面を覆う被覆材（２
３）及びエアバッグモジュール（Ｍ）間に配置した前部
保形材（１８）と，その両保形材（１６，１８）と前記
両被覆材（２３，２４）との間に配置したパッド（２
１）とを備え，前記両保形材（１６，１８）には，縫製
代を前記パッド（２１）側に突出させた縫製部（１７）
が設けられ，この縫製部（１７）と，前記両被覆材（２
３，２４）の縫製部（２６）との間の前記パッド（２
１）に，その厚さ（Ｔ）が周辺部の厚さよりも薄い薄肉
部（２１ 1 ）が形成されることを特徴とする乗員保護装
置。 3. An airbag module (M) is arranged inside the seat back (2), and the front surface of the seat back (2) is covered by the pressure of the airbag (6) inflated from the airbag module (M). An occupant protection device in which a sewn portion (26) of a covering material (23) and a covering material (24) covering a side surface is broken, and an airbag (6) is deployed into a vehicle compartment through an opening (48) formed therein. , A covering material (24) for covering the side surface of the seat back (2) and
Side shape retention material (1 between the bag modules (M)
6) and a covering material (2) for covering the front surface of the seat back (2)
3) and the front part located between the airbag module (M)
And Hokatachizai (18), a pad disposed between the Ryohokatachizai (16, 18) and said <br/> both dressing (23, 24) (2
1) and, the both shape-retaining materials (16, 18) are sewn
Sewn portion (17) with a margin protruding toward the pad (21)
Is provided, and the sewn portion (17) and the both covering materials (2
The pad (2) between the sewing section (26)
1) The thickness (T) is thinner than the thickness of the peripheral part
(21 1 ) is formed to protect the occupant.
Place
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14179696A JP3393754B2 (en) | 1996-06-04 | 1996-06-04 | Occupant protection device |
| US08/868,892 US5893579A (en) | 1996-06-04 | 1997-06-04 | Seat mounted air bag system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14179696A JP3393754B2 (en) | 1996-06-04 | 1996-06-04 | Occupant protection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09323607A JPH09323607A (en) | 1997-12-16 |
| JP3393754B2 true JP3393754B2 (en) | 2003-04-07 |
Family
ID=15300347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14179696A Expired - Fee Related JP3393754B2 (en) | 1996-06-04 | 1996-06-04 | Occupant protection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3393754B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3950356B2 (en) | 2002-03-29 | 2007-08-01 | 本田技研工業株式会社 | Side airbag device |
| JP4907184B2 (en) * | 2006-02-02 | 2012-03-28 | タカタ株式会社 | Airbag device |
| JP5076684B2 (en) * | 2007-07-02 | 2012-11-21 | マツダ株式会社 | Vehicle occupant protection device |
| US20200139920A1 (en) * | 2018-11-01 | 2020-05-07 | GM Global Technology Operations LLC | Knitted seat trim cover with integral airbag pocket |
| WO2022176561A1 (en) * | 2021-02-17 | 2022-08-25 | オートリブ ディベロップメント エービー | Side airbag device |
-
1996
- 1996-06-04 JP JP14179696A patent/JP3393754B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09323607A (en) | 1997-12-16 |
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