JP2004352248A - Occupant restraint system - Google Patents

Occupant restraint system Download PDF

Info

Publication number
JP2004352248A
JP2004352248A JP2004267727A JP2004267727A JP2004352248A JP 2004352248 A JP2004352248 A JP 2004352248A JP 2004267727 A JP2004267727 A JP 2004267727A JP 2004267727 A JP2004267727 A JP 2004267727A JP 2004352248 A JP2004352248 A JP 2004352248A
Authority
JP
Japan
Prior art keywords
airbag
sewing
garnish
roof
occupant restraint
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.)
Granted
Application number
JP2004267727A
Other languages
Japanese (ja)
Other versions
JP4573605B2 (en
Inventor
Takashi Aoki
孝志 青木
Naohiko Saida
直彦 斉田
Hidetoshi Uchiumi
英俊 内海
Fumiharu Ochiai
史治 落合
Yuichi Saito
雄一 斉藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honda Motor Co Ltd
Original Assignee
Honda Motor Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Priority to JP2004267727A priority Critical patent/JP4573605B2/en
Publication of JP2004352248A publication Critical patent/JP2004352248A/en
Application granted granted Critical
Publication of JP4573605B2 publication Critical patent/JP4573605B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Air Bags (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To prevent rupture of sewing of a base fabric to form a cell of an air bag from an end part. <P>SOLUTION: The base fabric of the air bag 21 is sewn 27 in a single line to form a plurality of cells 28a-28f that are inflatable, where end parts a-f of the sewing 27 are circularly formed. Even when the cells 28a-28f are expanded by gas generated from an inflator 30 to add a large load to the end part of the sewing 27, the load is dispersed at a circularly sewn part, thereby rupture of the sewing is prevented. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、車体のドア開口部の上縁に沿って折り畳み状態のエアバッグを配置し、車両の衝突時にインフレータが発生するガスでエアバッグを膨張させて車室の側部内面に沿ってカーテン状に展開させる乗員拘束装置に関する。   The present invention provides a folded airbag along the upper edge of a door opening of a vehicle body, inflates the airbag with gas generated by an inflator upon collision of the vehicle, and curtains the airbag along a side inner surface of a vehicle compartment. The present invention relates to an occupant restraint device that is deployed in a shape.

かかる乗員拘束装置は、例えば、下記特許文献1、2により公知である。この種の乗員拘束装置のエアバッグは、その長手方向に延びる折り畳み線に沿ってジクザグに折り畳まれており、エアバッグはインフレータに連なる上部連通路から下向きに延びる複数のセルにガスを供給することで展開するようになっている。
特開2000−33847号公報 特開平11−235965号公報
Such an occupant restraint device is known, for example, from Patent Documents 1 and 2 described below. The airbag of this type of occupant restraint device is folded zigzag along a longitudinally extending folding line, and the airbag supplies gas to a plurality of cells extending downward from an upper communication passage connected to an inflator. It is designed to be deployed in.
JP 2000-33847 A JP-A-11-235965

ところで、エアバッグのセルは重ね合わせた2枚の基布を線状に縫製することにより区画され、隣接する縫製間に挟まれた部分がセルとなってガスの流入により膨張する。従って、セルが膨張するときに前記縫製の端部に大きな荷重が加わり、そこから縫製糸が破断してしまう可能性があった。   By the way, the cells of the airbag are partitioned by sewing two superposed base fabrics in a line shape, and a portion sandwiched between adjacent sewings becomes a cell and expands due to the inflow of gas. Therefore, when the cell expands, a large load is applied to the end of the sewing, and the sewing thread may break therefrom.

本発明は前述の事情に鑑みてなされたもので、エアバッグのセルを区画するための基布の縫製が端部から破断するのを防止することを目的とする。   The present invention has been made in view of the above circumstances, and has as its object to prevent sewing of a base cloth for partitioning cells of an airbag from being broken from an end.

上記目的を達成するために、請求項1に記載された発明によれば、車体のドア開口部の上縁に沿って折り畳み状態のエアバッグを配置し、車両の衝突時にインフレータが発生するガスでエアバッグを膨張させて車室の側部内面に沿ってカーテン状に展開させる乗員拘束装置において、エアバッグの基布を1本の線状に縫製することにより膨張可能な複数のセルを形成し、前記縫製の端部を円形に縫製したことを特徴とする乗員拘束装置が提案される。   In order to achieve the above object, according to the first aspect of the present invention, a folded airbag is arranged along the upper edge of a door opening of a vehicle body, and a gas generated by an inflator at the time of a vehicle collision is used. In an occupant restraint system in which an airbag is inflated and deployed in a curtain shape along a side inner surface of a passenger compartment, a plurality of inflatable cells are formed by sewing the base fabric of the airbag into one linear shape. An occupant restraint system is proposed in which the end of the sewing is sewn in a circular shape.

請求項1の構成によれば、エアバッグの基布を1本の線状に縫製することにより膨張可能な複数のセルを形成し、前記縫製の端部を円形に縫製したので、インフレータが発生したガスでセルが膨張して縫製の端部に大きな荷重が加わっても、円形に縫製した部分で前記荷重を分散させて縫製糸の破断を防止することができる。   According to the configuration of the first aspect, a plurality of inflatable cells are formed by sewing the base fabric of the airbag into one linear shape, and the ends of the sewing are sewn in a circular shape. Even if the cell expands due to the generated gas and a large load is applied to the end of the sewing, the load can be dispersed at the circularly sewn portion to prevent breakage of the sewing thread.

以下、本発明の実施の形態を、添付の図面に示した本発明の実施例に基づいて説明する。   Hereinafter, embodiments of the present invention will be described based on embodiments of the present invention shown in the accompanying drawings.

図1〜図12は本発明の一実施例を示すもので、図1は自動車の車室内部を示す斜視図、図2は乗員拘束装置のエアバッグが展開した状態を示す、前記図1に対応する図、図3はエアバッグが展開した乗員拘束装置の拡大図、図4は乗員拘束装置の分解斜視図、図5は図1の5−5線拡大断面図、図6は図1の6−6線拡大断面図、図7は図1の7−7線拡大断面図、図8は図1の8−8線拡大断面図、図9は図3の9−9線拡大断面図、図10は図5の10−10線拡大断面図、図11は図4の11方向矢視図、図12は図7の12方向矢視図である。   1 to 12 show an embodiment of the present invention. FIG. 1 is a perspective view showing an interior of a vehicle, and FIG. 2 shows a state in which an airbag of an occupant restraint device is deployed. Corresponding figures, FIG. 3 is an enlarged view of the occupant restraint device in which the airbag is deployed, FIG. 4 is an exploded perspective view of the occupant restraint device, FIG. 5 is an enlarged sectional view taken along line 5-5 of FIG. 1, and FIG. 7 is an enlarged sectional view taken along line 7-7 of FIG. 1, FIG. 8 is an enlarged sectional view taken along line 8-8 of FIG. 1, FIG. 9 is an enlarged sectional view taken along line 9-9 of FIG. 10 is an enlarged sectional view taken along line 10-10 of FIG. 5, FIG. 11 is a view taken in the direction of arrow 11 in FIG. 4, and FIG. 12 is a view taken in the direction of arrow 12 in FIG.

図1に示すように、車両の車体側面にはフロントピラー11およびセンターピラー12間にフロントドア13が取り付けられるドア開口部14が形成され、センターピラー12およびリヤピラー15間にリヤドア16が取り付けられるドア開口部17が形成される。フロントピラー11の上端とリヤピラー15の上端とを接続するように車体前後方向に延びるルーフサイドレール18(図5参照)はフロントドア13およびリヤドア16のドア開口部14,17の上縁を区画しており、このルーフサイドレール18に沿って乗員拘束装置Cが設けられる。尚、乗員拘束装置Cは、実質的に同一構造のものが車体の左右両側にそれぞれ設けられているが、以下その代表として車体の右側に設けられたものについて説明する。   As shown in FIG. 1, a door opening 14 in which a front door 13 is attached between a front pillar 11 and a center pillar 12 is formed on a side surface of a vehicle body, and a rear door 16 is attached between the center pillar 12 and a rear pillar 15. An opening 17 is formed. A roof side rail 18 (see FIG. 5) extending in the vehicle longitudinal direction so as to connect the upper end of the front pillar 11 and the upper end of the rear pillar 15 defines upper edges of the door openings 14 and 17 of the front door 13 and the rear door 16. An occupant restraint device C is provided along the roof side rail 18. The occupant restraint devices C having substantially the same structure are provided on both the left and right sides of the vehicle body, respectively. Hereinafter, representative devices provided on the right side of the vehicle body will be described.

図2に示すように、車両の側面衝突時あるいはロールオーバー時に所定値以上の加速度が検出されると、車体の内部側面、即ちフロントピラー11、センターピラー12、リヤピラー15、フロントドア13のドアガラス13aおよびリヤドア16のドアガラス16aと、フロントシートおよびリヤシートに座った乗員との間に遮るように、乗員拘束装置Cのエアバッグ21がドア開口部14,17の上縁から下向きにカーテン状に展開する。   As shown in FIG. 2, when an acceleration equal to or more than a predetermined value is detected at the time of a side collision or rollover of the vehicle, the inner side surfaces of the vehicle body, that is, the front pillar 11, the center pillar 12, the rear pillar 15, and the door glass of the front door 13 The airbag 21 of the occupant restraint device C is shaped like a curtain downward from the upper edges of the door openings 14 and 17 so as to block between the door glass 16a of the rear door 13a and the rear door 16 and the occupant sitting on the front seat and the rear seat. expand.

図3に示すように、車体前後方向に延びるエアバッグ21は略同一形状の第1基布25および第2基布26(図9参照)を2重に重ね合わせて縫製27したものであり、その縫製27によって複数個(例えば6個)のセル28a〜28fと、上部連通路29とが形成される。セル28a〜28fの形状は一定しておらず、曲線状の縫製27によってJ字状やU字状に形成される。リヤピラー15の内部に収納されたインフレータ30から前方に延びるガス供給パイプ31の前端は上部連通路29内に挿入され、その上部連通路29から前記6個のセル28a〜28fが下向きに分岐する。ガス供給パイプ31が上部連通路29内に挿入される部分は金属バンド等で固定され、ガスが漏れないようにシールされる。6個のセル28a〜28fの端部a〜fは、縫製糸の破断を防止して強度を増加させるために小さな円形に縫製される。   As shown in FIG. 3, the airbag 21 extending in the vehicle front-rear direction is obtained by overlapping and sewing a first base cloth 25 and a second base cloth 26 (see FIG. 9) of substantially the same shape in a double manner. By the sewing 27, a plurality (for example, six) of cells 28a to 28f and an upper communication passage 29 are formed. The shapes of the cells 28a to 28f are not constant, and are formed in a J-shape or a U-shape by the curved sewing 27. A front end of a gas supply pipe 31 extending forward from an inflator 30 housed inside the rear pillar 15 is inserted into an upper communication passage 29, and the six cells 28a to 28f branch downward from the upper communication passage 29. The portion where the gas supply pipe 31 is inserted into the upper communication passage 29 is fixed with a metal band or the like, and is sealed so that gas does not leak. The ends a to f of the six cells 28a to 28f are sewn into small circles to prevent breakage of the sewing thread and increase the strength.

尚、エアバッグ21のフロントピラー11の後側に対応する位置と、センターピラー12の後側に対応する位置とには、セル28a〜28fが形成されない非膨張部21b,21cが設けられる。   Non-inflating portions 21b and 21c in which the cells 28a to 28f are not formed are provided at a position corresponding to the rear side of the front pillar 11 and a position corresponding to the rear side of the center pillar 12 of the airbag 21.

エアバッグ21の上縁に沿って複数個(例えば5個の)の衝撃吸収部材支持部21a…が設けられており、コルゲートパイプよりなる衝撃吸収部材33が前記衝撃吸収部材支持部21a…によってエアバッグ21と一体化される。図10に示すように、衝撃吸収部材33は中央のアルミニウム製の本体部33aと内外の紙製の被覆33b,33cとを積層して円形断面の蛇腹状に形成したもので、外部からの荷重により潰れて有効な衝撃吸収効果を発揮する。ルーフ34はアウター部材35、センター部材36およびインナー部材37から構成されており、エアバッグ21の後側の4個の衝撃吸収部材支持部21a…の上端は各2本のボルト38,38でインナー部材37に固定される(図5〜図7参照)。フロントピラー11はアウター部材39、センター部材40およびインナー部材41から構成されており、エアバッグ21の前端の衝撃吸収部材支持部21aの上端は2本のボルト38,38でインナー部材41に固定される(図8参照)。   A plurality (for example, five) of shock absorbing member support portions 21a are provided along the upper edge of the airbag 21, and the shock absorbing members 33 formed of corrugated pipes are air-sealed by the shock absorbing member support portions 21a. It is integrated with the bag 21. As shown in FIG. 10, the shock absorbing member 33 is formed by laminating a central aluminum main body 33a and inner and outer paper coatings 33b and 33c to form a bellows shape having a circular cross section. It is crushed and exhibits an effective shock absorbing effect. The roof 34 is composed of an outer member 35, a center member 36, and an inner member 37. The upper ends of the four shock absorbing member support portions 21a on the rear side of the airbag 21 are inner bolted by two bolts 38, 38, respectively. It is fixed to the member 37 (see FIGS. 5 to 7). The front pillar 11 includes an outer member 39, a center member 40, and an inner member 41. The upper end of the shock absorbing member support portion 21a at the front end of the airbag 21 is fixed to the inner member 41 with two bolts 38,38. (See FIG. 8).

このように、折り畳んだエアバッグ21と衝撃吸収部材33とを予め一体化してモジュールを構成したので、それらを別個に車体に取り付ける場合に比べて取付作業が容易になり、作業能率の向上および組付精度の向上が可能になる。しかも折り畳んだエアバッグ21およびコルゲートパイプより衝撃吸収部材33は共に可撓性を有しているため、湾曲したルーフサイドレール18に沿うように配置することが容易である。   As described above, since the folded airbag 21 and the shock absorbing member 33 are preliminarily integrated to form a module, the mounting operation becomes easier as compared with a case where they are separately mounted on the vehicle body, thereby improving work efficiency and improving assembly. The accuracy of attachment can be improved. Moreover, since the shock absorbing member 33 is flexible from the folded airbag 21 and the corrugated pipe, it is easy to arrange the shock absorbing member 33 along the curved roof side rail 18.

図4から明らかなように、折り畳み状態のエアバッグ21は、不織布で形成したエアバッグカバー42の内部に収納される。エアバッグカバー42は、長方形の布片を筒状にして下縁に沿って縫製したもので、ルーフサイドレール18に対向する側面に容易に破断するスリット42a…がミシン目状に形成される。またエアバッグ21の上端から突出する衝撃吸収部材支持部21a…が、エアバッグカバー42の上面に形成した開口42b…を通過して上方に突出する。   As is clear from FIG. 4, the folded airbag 21 is housed inside an airbag cover 42 formed of a nonwoven fabric. The airbag cover 42 is formed by forming a rectangular piece of cloth into a tubular shape and sewing it along the lower edge, and slits 42a that are easily broken are formed on the side surface facing the roof side rail 18 in a perforated shape. Projecting from the upper end of the airbag 21, the shock absorbing member supporting portions 21a project through the openings 42b formed on the upper surface of the airbag cover 42 and project upward.

図5から明らかなように、アウター部材43、センター部材44およびインナー部材45から構成されたルーフサイドレール18の下端には、リヤドア16(あるいはフロントドア13)に当接可能なウエザーストリップ46が設けられる。ルーフ34の下面に沿うように配置された合成樹脂製のルーフガーニッシュ47の端縁は、ルーフサイドレール18の下端から車室側に突出したウエザーストリップ46の端縁に係止される。車室に対向するルーフガーニッシュ47の下面は表皮材49で被覆されており、この表皮材49はルーフガーニッシュ47の端縁において下面側から上面側に回り込んでいる。これにより、衝撃が加わったときに合成樹脂製のルーフガーニッシュ47の端縁が割れて飛散するのを防止することができる。   As is apparent from FIG. 5, a weather strip 46 is provided at the lower end of the roof side rail 18 including the outer member 43, the center member 44, and the inner member 45 so as to abut on the rear door 16 (or the front door 13). Can be An edge of a synthetic resin roof garnish 47 arranged along the lower surface of the roof 34 is locked to an edge of a weather strip 46 projecting from the lower end of the roof side rail 18 toward the passenger compartment. The lower surface of the roof garnish 47 facing the passenger compartment is covered with a skin material 49, and the skin material 49 extends from the lower surface to the upper surface at the edge of the roof garnish 47. Accordingly, it is possible to prevent the edge of the synthetic resin roof garnish 47 from being broken and scattered when an impact is applied.

図4および図6から明らかなように、ルーフサイドレール18から下向きに延びるセンターピラー12はアウトサイドパネル65、スチフナ66およびセンターピラーインナー67から構成されており、ルーフ34のインナー部材37とセンターピラー12のセンターピラーインナー67とに亘ってフロントブラケット50が装着される。フロントブラケット50は金属板を折り曲げたもので、その上部がルーフ34のインナー部材37に重ねられた状態で、エアバッグ21の衝撃吸収部材支持部21aと共に2本のボルト38,38で固定され、またその下部がセンターピラー12のセンターピラーインナー67に2本のボルト51,51で固定される。   4 and 6, the center pillar 12 extending downward from the roof side rail 18 includes an outside panel 65, a stiffener 66, and a center pillar inner 67, and the inner member 37 of the roof 34 and the center pillar The front bracket 50 is attached to the twelve center pillar inners 67. The front bracket 50 is formed by bending a metal plate, and is fixed with two bolts 38, 38 together with the shock absorbing member supporting portion 21a of the airbag 21 in a state where the upper portion thereof is overlapped with the inner member 37 of the roof 34. The lower part is fixed to the center pillar inner 67 of the center pillar 12 with two bolts 51, 51.

フロントブラケット50の中間には車室側に突出する突出部52が形成されており、突出部52の上面に形成したガイド面52aが折り畳んだエアバッグ21の下端に対向するとともに、突出部52の下面に形成した2個の係止孔52b,52bに、センターピラーガーニッシュ53の上部内面に突設した係止爪53a,53aが係合する。尚、センターピラーガーニッシュ53の内面には、乗員の二次衝突の衝撃を吸収すべく多数の衝撃吸収リブ53b…(図2および図6参照)が形成される。   A projecting portion 52 projecting toward the passenger compartment is formed in the middle of the front bracket 50. A guide surface 52 a formed on the upper surface of the projecting portion 52 faces the lower end of the folded airbag 21. Engagement claws 53a, 53a projecting from the upper inner surface of the center pillar garnish 53 engage with the two engagement holes 52b, 52b formed on the lower surface. A number of impact absorbing ribs 53b (see FIGS. 2 and 6) are formed on the inner surface of the center pillar garnish 53 in order to absorb the impact of the secondary collision of the occupant.

しかして、特別のクリップ等を用いることなく、センターピラーガーニッシュ53の上部をセンターピラー12に固定することができ、しかもクリップを用いた場合に比べてセンターピラーガーニッシュ53を強固に固定することができる。そしてルーフガーニッシュ47の下縁が、フロントブラケット50の突出部52の頂面52cとセンターピラーガーニッシュ53の上端内面との間に挟まれて固定される。   Thus, the upper portion of the center pillar garnish 53 can be fixed to the center pillar 12 without using a special clip or the like, and the center pillar garnish 53 can be fixed more firmly than when a clip is used. . The lower edge of the roof garnish 47 is sandwiched and fixed between the top surface 52c of the protrusion 52 of the front bracket 50 and the upper end inner surface of the center pillar garnish 53.

図4、図7および図12から明らかなように、ルーフサイドレール18から下向きに延びるリヤピラー15はアウター部材54、センター部材55およびインナー部材56から構成されており、ルーフ34のインナー部材37とリヤピラー15のインナー部材56とに亘ってリヤブラケット57が装着される。リヤブラケット57はフロントブラケット50と略同一形状であり、その上部がルーフ34のインナー部材37に重ねられた状態で、エアバッグ21の衝撃吸収部材支持部21aと共に2本のボルト38,38で固定され、その下部がリヤピラー15のインナー部材56に2本のボルト58,58で固定される。リヤブラケット57の中間には車室側に突出する突出部59が形成されており、突出部59の上面に形成したガイド面59aが折り畳んだエアバッグ21の下端に対向する。   4, 7, and 12, the rear pillar 15 extending downward from the roof side rail 18 includes an outer member 54, a center member 55, and an inner member 56, and the inner member 37 of the roof 34 and the rear pillar A rear bracket 57 is attached across the 15 inner members 56. The rear bracket 57 has substantially the same shape as the front bracket 50, and is fixed together with the shock absorbing member support portion 21 a of the airbag 21 with two bolts 38, with the upper portion thereof being overlapped with the inner member 37 of the roof 34. The lower part is fixed to the inner member 56 of the rear pillar 15 with two bolts 58, 58. A projecting portion 59 projecting toward the passenger compartment is formed in the middle of the rear bracket 57, and a guide surface 59a formed on the upper surface of the projecting portion 59 faces the lower end of the folded airbag 21.

リヤピラー15のインナー部材56にクリップ60で固定されたリヤピラーガーニッシュ61は、その上端に車体外側に折れ曲がったフランジ61aを備えており、ルーフガーニッシュ47の下縁にも前記リヤピラーガーニッシュ61のフランジ61aに突き合わされるフランジ47aが形成される。ルーフガーニッシュ47のフランジ47aは、下向きに突出する複数個(実施例では5個)の係止爪47b…を備えており、これらの係止爪61b…はリヤピラーガーニッシュ61のフランジ61aの裏面に係合する。尚、リヤピラーガーニッシュ61の内面には、乗員の二次衝突の衝撃を吸収すべく多数の衝撃吸収リブ61c…(図2および図7参照)が形成される。   The rear pillar garnish 61 fixed to the inner member 56 of the rear pillar 15 with the clip 60 has a flange 61a bent at the upper end to the outside of the vehicle body. A mating flange 47a is formed. The flange 47a of the roof garnish 47 is provided with a plurality (five in this embodiment) of locking claws 47b projecting downward, and these locking claws 61b are engaged with the rear surface of the flange 61a of the rear pillar garnish 61. Combine. A number of impact absorbing ribs 61c (see FIGS. 2 and 7) are formed on the inner surface of the rear pillar garnish 61 in order to absorb the impact of the secondary collision of the occupant.

図2、図8および図11に示すように、フロントピラー11の前面にはラバー部材62を介してフロントガラス63の側縁が支持されており、このラバー部材62とフロントピラー11の後面に設けたウエザーストリップ48との間に、断面が弧状に湾曲するフロントピラーガーニッシュ64が取り付けられる。フロントピラーガーニッシュ64の上半部は中空であり、そこにエアバッグ21の前端の折り畳まれた非膨張部21bと、衝撃吸収部材33の前端部とが収納される。そしてエアバッグ21および衝撃吸収部材33が収納されないフロントピラーガーニッシュ64の下半部の内面には、衝撃吸収用の多数の衝撃吸収リブ64a…が一体に形成される。   As shown in FIGS. 2, 8 and 11, a side edge of a windshield 63 is supported on a front surface of the front pillar 11 via a rubber member 62, and is provided on a rear surface of the rubber member 62 and the front pillar 11. A front pillar garnish 64 whose cross section is curved in an arc shape is attached between the weather strip 48 and the weather strip 48. The upper half of the front pillar garnish 64 is hollow, in which the folded non-inflating portion 21b at the front end of the airbag 21 and the front end of the shock absorbing member 33 are stored. On the inner surface of the lower half of the front pillar garnish 64 where the airbag 21 and the shock absorbing member 33 are not housed, a number of shock absorbing ribs 64a for shock absorption are integrally formed.

このように、フロントピラーガーニッシュ64の上半部に衝撃吸収部材33を収納し、フロントピラーガーニッシュ64の下半部に多数の衝撃吸収リブ64a…を形成したことにより、フロントピラー11内にエアバッグ21の前端部を収納しながら、フロントピラー11の全長に亘って衝撃吸収効果を発揮させることができる。しかもエアバッグ21の前端部を収納するフロントピラーガーニッシュ64の上半部に衝撃吸収リブ64a…が形成されていないため、エアバッグ21の展開時にフロントピラーガーニッシュ64を容易に撓ませてエアバッグ21のスムーズな展開を可能にし、かつフロントピラーガーニッシュ64の一部が割れて飛散するのを確実に防止することができる。   As described above, the shock absorbing member 33 is accommodated in the upper half of the front pillar garnish 64, and a number of shock absorbing ribs 64a are formed in the lower half of the front pillar garnish 64. The shock absorbing effect can be exerted over the entire length of the front pillar 11 while accommodating the front end of the front pillar 21. Moreover, since the impact absorbing ribs 64a are not formed in the upper half of the front pillar garnish 64 that houses the front end of the airbag 21, the front pillar garnish 64 is easily bent when the airbag 21 is deployed, and Of the front pillar garnish 64 can be surely prevented from being broken and scattered.

図1に示すように、前部側突センサ71および後部側突センサ72が電子制御ユニット73に接続されており、電子制御ユニット73が両加速度センサ71,72からの信号に基づいて車両の側面衝突(あるいは車両のロールオーバー)1検知すると、エアバッグ21を展開すべくインフレータ30に作動信号を出力する。   As shown in FIG. 1, a front side collision sensor 71 and a rear side collision sensor 72 are connected to an electronic control unit 73, and the electronic control unit 73 uses the signals from both acceleration sensors 71, 72 to detect the side of the vehicle. When a collision (or vehicle rollover) 1 is detected, an operation signal is output to the inflator 30 to deploy the airbag 21.

次に、上記実施例の作用について説明する。   Next, the operation of the above embodiment will be described.

車両の側面衝突が検知されるとインフレータ30が作動し、インフレータ30内に蓄圧されていたガスがガス供給パイプ31および上部連通路29を経て6個のセル28a〜28fに流入し、それら6個のセル28a〜28fを膨張させる。エアバッグ21の膨張によりエアバッグカバー42のスリット42a…が破断し、拘束を解かれたエアバッグ21が下方に展開する。   When a side collision of the vehicle is detected, the inflator 30 operates, and the gas stored in the inflator 30 flows into the six cells 28a to 28f via the gas supply pipe 31 and the upper communication passage 29, and the six Cells 28a to 28f are expanded. The slits 42a of the airbag cover 42 are broken by the inflation of the airbag 21, and the airbag 21 that has been released from the restraint is deployed downward.

図5に示すように、フロントドア13およびリヤドア16のドア開口部14,17では、展開するエアバッグ21の圧力でルーフガーニッシュ47の下縁が下方に押し下げられてウエザーストリップ46との係合が外れ、そこに形成された開口を通ってエアバッグ21が車室内に下向きに展開する。   As shown in FIG. 5, in the door openings 14 and 17 of the front door 13 and the rear door 16, the lower edge of the roof garnish 47 is pushed down by the pressure of the deployed airbag 21, and the engagement with the weather strip 46 is reduced. The airbag 21 is disengaged and deploys downward into the vehicle interior through the opening formed therein.

また図6に示すように、センターピラー12の位置では、展開するエアバッグ21の圧力でルーフガーニッシュ47の下縁が下方に押し下げられてセンターピラーガーニッシュ53の上端との係合が外れ、そこに形成された開口を通ってエアバッグ21が車室内に下向きに展開する。   Further, as shown in FIG. 6, at the position of the center pillar 12, the lower edge of the roof garnish 47 is pushed down by the pressure of the deploying airbag 21, and disengagement from the upper end of the center pillar garnish 53 is released. The airbag 21 deploys downward into the vehicle interior through the formed opening.

ところで、センターピラー12の車室側側面を覆うセンターピラーガーニッシュ53は、センターピラー12ではなくフロントブラケット50に固定されているため、車両が側面衝突してルーフサイドレール18に対してセンターピラー12の上部が変形しても、フロントブラケット50の上部に支持したエアバッグ21とセンターピラーガーニッシュ53との位置関係が変化し難くなる。従って、センターピラーガーニッシュ53をクリップではなく係止爪53a,53aでフロントブラケット50に強固に固定したことと相俟って、展開するエアバッグ21がセンターピラーガーニッシュ53の上端に引っ掛かり難くして確実な展開を保証することができる。   The center pillar garnish 53 covering the side surface of the center pillar 12 on the passenger compartment side is fixed not to the center pillar 12 but to the front bracket 50. Even if the upper portion is deformed, the positional relationship between the airbag 21 supported on the upper portion of the front bracket 50 and the center pillar garnish 53 is less likely to change. Therefore, in combination with the fact that the center pillar garnish 53 is firmly fixed to the front bracket 50 with the locking claws 53a, 53a instead of the clip, the deployable airbag 21 is less likely to be caught on the upper end of the center pillar garnish 53, and is thus more reliable. Deployment can be guaranteed.

しかも、展開するエアバッグ21は、フロントブラケット50の突出部52の傾斜したガイド面52aに案内されて車室内に向けて斜め下方に案内されるため、センターピラーガーニッシュ53との干渉を回避してエアバッグ21を一層スムーズに展開させることができる。   In addition, since the deployed airbag 21 is guided by the inclined guide surface 52a of the protruding portion 52 of the front bracket 50 and guided obliquely downward toward the vehicle interior, it avoids interference with the center pillar garnish 53. The airbag 21 can be deployed more smoothly.

また図7に示すように、リヤピラー15の位置では、展開するエアバッグ21の圧力でルーフガーニッシュ47の下縁が下方に押し下げられてリヤピラーガーニッシュ61の上端との係合が外れ、そこに形成された開口を通ってエアバッグ21が車室内に下向きに展開する。このとき、展開するエアバッグ21は、リヤブラケット57の突出部59の傾斜したガイド面59aに案内されて車室内に向けて斜め下方に案内されるため、リヤピラーガーニッシュ47との干渉を回避してエアバッグ21をスムーズに展開させることができる。   As shown in FIG. 7, at the position of the rear pillar 15, the lower edge of the roof garnish 47 is pushed down by the pressure of the deploying airbag 21 to disengage with the upper end of the rear pillar garnish 61 and is formed there. The airbag 21 is deployed downward into the vehicle interior through the opening. At this time, the deployed airbag 21 is guided by the inclined guide surface 59a of the projecting portion 59 of the rear bracket 57 and guided obliquely downward toward the vehicle interior, so as to avoid interference with the rear pillar garnish 47. The airbag 21 can be deployed smoothly.

更に、ルーフガーニッシュ47の下縁近傍は突出部59の頂面59bとリヤピラーガーニッシュ61のフランジ61aとにより両側から挟まれて位置決めされるため、両者のフランジ47a,61aは段差を発生せずに突き合わされて美観が向上する。しかもエアバッグ21の展開時にルーフガーニッシュ47の係止爪47b…が撓んでリヤピラーガーニッシュ61のフランジ61aから簡単に外れるため、ルーフガーニッシュ47とリヤピラーガーニッシュ61との間にエアバッグ21が展開する開口を確実に形成することができる。仮に、ルーフガーニッシュ47の下縁全体をリヤピラーガーニッシュ61の上縁の裏面に係合させると、エアバッグ21の展開時にルーフガーニッシュ47の下縁をリヤピラーガーニッシュ61の上縁からスムーズに分離させるのが難しくなる。   Further, since the vicinity of the lower edge of the roof garnish 47 is positioned by being sandwiched from both sides by the top surface 59b of the protrusion 59 and the flange 61a of the rear pillar garnish 61, the flanges 47a, 61a of both project without a step. Together, the aesthetics improve. Moreover, when the airbag 21 is deployed, the locking claws 47b of the roof garnish 47 are flexed and easily detached from the flange 61a of the rear pillar garnish 61. It can be formed reliably. If the entire lower edge of the roof garnish 47 is engaged with the back surface of the upper edge of the rear pillar garnish 61, the lower edge of the roof garnish 47 can be smoothly separated from the upper edge of the rear pillar garnish 61 when the airbag 21 is deployed. It becomes difficult.

また図8に示すように、フロントピラー11の位置では、展開するエアバッグ21の圧力でフロントピラーガーニッシュ64の後縁が下方に押し下げられてウエザーストリップ48との係合が外れ、そこに形成された開口を通ってエアバッグ21が車室内に下向きに展開する。   As shown in FIG. 8, at the position of the front pillar 11, the rear edge of the front pillar garnish 64 is pushed down by the pressure of the deploying airbag 21 to disengage with the weather strip 48, and is formed there. The airbag 21 is deployed downward into the vehicle interior through the opening.

上述のようにしてエアバッグ21が車室内に展開したとき、図2から明らかなように、エアバッグ21のセル28a〜28fの6個の端部a〜fのうち、端部bはセンターピラーガーニッシュ53の近傍に配置され、端部c,dはセンターピラーガーニッシュ53上に配置され、端部eはリヤピラーガーニッシュ61の近傍に配置さる。   When the airbag 21 is deployed in the vehicle interior as described above, as is apparent from FIG. 2, the end b of the six ends a to f of the cells 28a to 28f of the airbag 21 is the center pillar. The ends c and d are arranged near the garnish 53, the ends c and d are arranged on the center pillar garnish 53, and the end e is arranged near the rear pillar garnish 61.

図9にはセンターピラーガーニッシュ53の近傍およびセンターピラーガーニッシュ53の上に位置する2つの端部b,cが示されており、この膨張不能な端部b,cの近傍でエアバッグ21が充分な衝撃吸収効果を発揮できなくても、その後ろ側に位置するセンターピラーガーニッシュ53に設けた衝撃吸収リブ53b…が圧潰することで、必要な衝撃吸収効果を確保することができる。センターピラーガーニッシュ53あるいはリヤピラーガーニッシュ61に対応する他の2個所の端部d,eについても、上述した作用効果を得ることができる。   FIG. 9 shows two ends b and c located near the center pillar garnish 53 and above the center pillar garnish 53, and the airbag 21 is sufficiently provided near the non-inflated ends b and c. Even if the impact absorbing effect cannot be exerted, the necessary impact absorbing effect can be secured by crushing the impact absorbing ribs 53b provided on the center pillar garnish 53 located on the rear side. The above-described effects can be obtained also at the other two ends d and e corresponding to the center pillar garnish 53 or the rear pillar garnish 61.

側面衝突により発生する加速度が所定値以下の場合には乗員拘束装置Cは作動しないが、その衝撃で乗員がルーフサイドレール18に臨むルーフガーニッシュ47の下縁、あるいはフロントピラーガーニッシュ64の上部に二次衝突した場合には、コルゲートパイプよりなる衝撃吸収部材33が押し潰されて衝撃を吸収するだけでなく、折り畳まれたエアバッグ21も衝撃吸収効果を高める機能を発揮する。このとき、衝撃吸収部材33はルーフ34のインナー部材37あるいはフロントピラー11のインナー部材41に当接する状態で支持されているため(図5〜図8参照)、それらインナー部材37,41に押し付けられて確実に圧潰し、二次衝突の衝撃を効果的に吸収することができる。   If the acceleration generated by the side collision is equal to or less than a predetermined value, the occupant restraint device C does not operate. However, the impact causes the occupant to move to the lower edge of the roof garnish 47 facing the roof side rail 18 or the upper portion of the front pillar garnish 64. In the event of a subsequent collision, not only is the shock absorbing member 33 made of a corrugated pipe crushed to absorb the shock, but the folded airbag 21 also has a function of enhancing the shock absorbing effect. At this time, since the shock absorbing member 33 is supported in a state of contacting the inner member 37 of the roof 34 or the inner member 41 of the front pillar 11 (see FIGS. 5 to 8), the impact absorbing member 33 is pressed against the inner members 37 and 41. Crushing, and the impact of the secondary collision can be effectively absorbed.

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 embodiments of the present invention have been described in detail above, various design changes can be made in the present invention without departing from the gist thereof.

例えば、エアバッグ21のセル28a〜28fの形状は実施例のものに限定されず、任意の形状を採用することができる。   For example, the shapes of the cells 28a to 28f of the airbag 21 are not limited to those of the embodiment, and any shape can be adopted.

自動車の車室内部を示す斜視図Perspective view showing the interior of a car interior 乗員拘束装置のエアバッグが展開した状態を示す、前記図1に対応する図The figure corresponding to the said FIG. 1 which shows the state which the airbag of the occupant restraint device was expanded. エアバッグが展開した乗員拘束装置の拡大図Enlarged view of the occupant restraint system deployed by the airbag 乗員拘束装置の分解斜視図Exploded perspective view of the occupant restraint device 図1の5−5線拡大断面図FIG. 1 is an enlarged sectional view taken along line 5-5 of FIG. 図1の6−6線拡大断面図1 is an enlarged sectional view taken along line 6-6 in FIG. 図1の7−7線拡大断面図FIG. 7 is an enlarged sectional view taken along line 7-7 of FIG. 図1の8−8線拡大断面図FIG. 8 is an enlarged sectional view taken along line 8-8 of FIG. 図3の9−9線拡大断面図3 is an enlarged sectional view taken along line 9-9 in FIG. 図5の10−10線拡大断面図FIG. 10 is an enlarged sectional view taken along line 10-10 of FIG. 図4の11方向矢視図FIG. 4 is a view taken in the direction of arrow 11 in FIG. 図7の12方向矢視図FIG.

符号の説明Explanation of reference numerals

14 ドア開口部
17 ドア開口部
21 エアバッグ
25 基布
26 基布
27 縫製
28a〜28f セル
30 インフレータ
14 Door opening 17 Door opening 21 Airbag 25 Base cloth 26 Base cloth 27 Sewing 28a to 28f Cell 30 Inflator

Claims (1)

車体のドア開口部(14,17)の上縁に沿って折り畳み状態のエアバッグ(21)を配置し、車両の衝突時にインフレータ(30)が発生するガスでエアバッグ(21)を膨張させて車室の側部内面に沿ってカーテン状に展開させる乗員拘束装置において、
エアバッグ(21)の基布(25,26)を1本の線状に縫製(27)することにより膨張可能な複数のセル(28a〜28f)を形成し、前記縫製(27)の端部を円形に縫製したことを特徴とする乗員拘束装置。
The folded airbag (21) is arranged along the upper edge of the door opening (14, 17) of the vehicle body, and the airbag (21) is inflated with gas generated by the inflator (30) at the time of collision of the vehicle. In an occupant restraint system deployed in a curtain shape along the inner side surface of a vehicle cabin,
A plurality of inflatable cells (28a to 28f) are formed by sewing (27) the base fabric (25, 26) of the airbag (21) into one linear shape, and the end portions of the sewing (27) are formed. An occupant restraint device, which is sewn in a circular shape.
JP2004267727A 2004-09-15 2004-09-15 Crew restraint system Expired - Fee Related JP4573605B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2004267727A JP4573605B2 (en) 2004-09-15 2004-09-15 Crew restraint system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004267727A JP4573605B2 (en) 2004-09-15 2004-09-15 Crew restraint system

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP2001175070A Division JP3999475B2 (en) 2001-06-11 2001-06-11 Crew restraint system

Publications (2)

Publication Number Publication Date
JP2004352248A true JP2004352248A (en) 2004-12-16
JP4573605B2 JP4573605B2 (en) 2010-11-04

Family

ID=34056555

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004267727A Expired - Fee Related JP4573605B2 (en) 2004-09-15 2004-09-15 Crew restraint system

Country Status (1)

Country Link
JP (1) JP4573605B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011213194A (en) * 2010-03-31 2011-10-27 Mazda Motor Corp Interior structure of vehicle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000127886A (en) * 1998-08-20 2000-05-09 Takata Corp Automobile occupant's head protecting bag
JP2000296749A (en) * 1999-04-15 2000-10-24 Honda Motor Co Ltd Occupant restraint system
JP2001171471A (en) * 1999-11-25 2001-06-26 Takata Corp Expandable air bag
JP2002255002A (en) * 2000-03-03 2002-09-11 Takata Corp Head protective bag for automobile occupant

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000127886A (en) * 1998-08-20 2000-05-09 Takata Corp Automobile occupant's head protecting bag
JP2000296749A (en) * 1999-04-15 2000-10-24 Honda Motor Co Ltd Occupant restraint system
JP2001171471A (en) * 1999-11-25 2001-06-26 Takata Corp Expandable air bag
JP2002255002A (en) * 2000-03-03 2002-09-11 Takata Corp Head protective bag for automobile occupant

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011213194A (en) * 2010-03-31 2011-10-27 Mazda Motor Corp Interior structure of vehicle

Also Published As

Publication number Publication date
JP4573605B2 (en) 2010-11-04

Similar Documents

Publication Publication Date Title
JP3631981B2 (en) Crew restraint system
JP3592654B2 (en) Occupant restraint
US6843502B2 (en) Occupant restraint system
CA2389882C (en) Occupant restraint system
US7121579B2 (en) Occupant restraint system
JP4962185B2 (en) Side airbag device
JP2009292441A (en) Curtain airbag bracket and curtain airbag apparatus
JP3592653B2 (en) Occupant restraint
JP2000296753A (en) Occupant restraint device
JP2000296750A (en) Occupant restraint system
JP2005014908A (en) Occupant restraint apparatus
JP3935032B2 (en) Crew restraint system
JP3626701B2 (en) Crew restraint system
JP2017149178A (en) Side airbag device
JP2002362287A (en) Occupant restraint device
JP3631980B2 (en) Crew restraint system
JP2002362286A (en) Occupant restraint device
JP4573605B2 (en) Crew restraint system
JP3626700B2 (en) Crew restraint system
JP3999475B2 (en) Crew restraint system
JP6417932B2 (en) Side airbag device
JP2010069996A (en) Vehicular interior structure having curtain airbag device
JP5843432B2 (en) Curtain airbag device
JP2007038957A (en) Airbag device
JP5241646B2 (en) Method for assembling airbag device

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20071126

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20100127

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20100203

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20100405

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20100804

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20100817

R150 Certificate of patent or registration of utility model

Ref document number: 4573605

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130827

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140827

Year of fee payment: 4

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees