JP2006088838A - Occupant protecting device for vehicle - Google Patents

Occupant protecting device for vehicle Download PDF

Info

Publication number
JP2006088838A
JP2006088838A JP2004275550A JP2004275550A JP2006088838A JP 2006088838 A JP2006088838 A JP 2006088838A JP 2004275550 A JP2004275550 A JP 2004275550A JP 2004275550 A JP2004275550 A JP 2004275550A JP 2006088838 A JP2006088838 A JP 2006088838A
Authority
JP
Japan
Prior art keywords
vehicle
gas
roof
seat
roof side
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
JP2004275550A
Other languages
Japanese (ja)
Other versions
JP4327689B2 (en
Inventor
Takashi Aoki
孝志 青木
Hirofumi Totsuka
広文 戸塚
Yuichi Saito
雄一 齋藤
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 JP2004275550A priority Critical patent/JP4327689B2/en
Priority to US11/231,229 priority patent/US7407182B2/en
Priority to GB0519396A priority patent/GB2418401B8/en
Priority to DE102005045370.8A priority patent/DE102005045370B4/en
Publication of JP2006088838A publication Critical patent/JP2006088838A/en
Application granted granted Critical
Publication of JP4327689B2 publication Critical patent/JP4327689B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Air Bags (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide an occupant protecting device for a vehicle capable of protecting all occupants seated on three seats in front, in the middle, and in the rear with a roof side air bag and precluding application of an excessive load on a front pillar garnish when the roof side air bag is inflated and deployed. <P>SOLUTION: The occupant protecting device 50 is for the vehicle 10 equipped in its cabin 11 with a front 12, a middle 13, and a rear seat 14, and is capable of protecting all occupants on these seats. The roof side air bag 53 is equipped with a gas inlet 71F arranged approximately in the center, a has main passage stretching in the fore-and-aft direction from the gas inlet to a roof space part S1, a front bag part 74F having communication with the gas main passage and inflating in the position of the front seat, a middle bag part 74M having communication with the gas main passage and inflating in the position of the middle seat, and a rear bag part 74R having communication with the gas main passage and inflating in the position of the rear seat. When the front bag part inflates toward the cabin, the gas is first directed downward and then flows in the fold-back direction to the front upward. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、車両の側部へ衝撃力を受けたときに車両のルーフサイド部分における乗員の保護を強化した、車両用乗員保護装置の改良技術に関する。   The present invention relates to an improved technique for an occupant protection device for a vehicle that enhances the protection of the occupant in the roof side portion of the vehicle when an impact force is applied to a side portion of the vehicle.

近年、車両の側部へ衝撃力を受けたときに、特に乗員の頭部の保護性能を高めるために開発が進められている。
この種の車両用乗員保護装置には、例えば、ピラーからルーフの側縁にかけてルーフサイドエアバッグを収納し、一定以上の衝撃力を受けたときにルーフサイドエアバッグをサイドガラスに沿ってカーテン状に膨出するようにした技術が開発されている(例えば、特許文献1参照。)。
特許第3510061号公報
In recent years, development has been advanced in order to improve the protection performance of the occupant's head when an impact force is applied to the side of the vehicle.
In this type of vehicle occupant protection device, for example, a roof side airbag is stored from the pillar to the side edge of the roof, and the roof side airbag is curtained along the side glass when subjected to a certain level of impact force. A technique for bulging has been developed (for example, see Patent Document 1).
Japanese Patent No. 3510061

上記特許文献1に示す従来の車両は、車室に1個の座席又は前後2席を設けた乗用車であって、フロントピラーの車室側に、一定のピラー空間部を有してピラーガーニッシュを取付け、ルーフにおける側部コーナで車室側に、車室前後方向に細長い一定のルーフ空間部を設け、さらに車両用乗員保護装置を備えたというものである。   The conventional vehicle shown in Patent Document 1 is a passenger car in which one seat or two front and rear seats are provided in a passenger compartment, and a pillar garnish is provided with a certain pillar space on the passenger compartment side of the front pillar. A fixed roof space portion that is elongated in the longitudinal direction of the vehicle compartment is provided on the vehicle compartment side at the side corner of the attachment and roof, and a vehicle occupant protection device is further provided.

この車両用乗員保護装置は、ピラー空間部並びにルーフ空間部にルーフサイドエアバッグを収納し、ルーフサイドレールにインフレータを取付けるとともに、ルーフサイドレールにルーフサイドエアバッグを一定ピッチでボルトにて取付け、さらに、インフレータにガス供給管を介してルーフサイドエアバッグを接続した構成である。
このような車両用乗員保護装置によれば、車体側方から一定以上の衝撃力を受けたことをセンサが検出したときに、インフレータがガスを発生することで、ルーフサイドエアバッグをサイドガラスに沿って車室側へ膨張させることができる。
This vehicle occupant protection device houses a roof side airbag in the pillar space and the roof space, attaches an inflator to the roof side rail, and attaches the roof side airbag to the roof side rail with bolts at a constant pitch. Further, the roof side airbag is connected to the inflator via a gas supply pipe.
According to such a vehicle occupant protection device, when the sensor detects that an impact force of a certain level or more has been received from the side of the vehicle body, the inflator generates gas, so that the roof side airbag is moved along the side glass. Can be expanded to the passenger compartment side.

ところで、従来のルーフサイドエアバッグは、複数の膨張部を前後1列に配列したものである。複数の膨張部のうち、最も前の膨張部はピラーガーニッシュを破りつつ膨張することになる。
インフレータからルーフサイドエアバッグの後上部に供給されたガスは、最前の膨張部を始め、複数の膨張部の全てに急速に流入する。ルーフサイドエアバッグの後上部からガスを供給するので、最前の膨張部を膨張させるガス圧は比較的小さい。このため、最前の膨張部がピラーガーニッシュを破って膨張するときに、ピラーガーニッシュに作用する荷重は小さくてすむ。
By the way, the conventional roof side airbag has a plurality of inflatable portions arranged in a line in the front and rear direction. Among the plurality of inflating parts, the foremost inflating part will inflate while breaking the pillar garnish.
The gas supplied from the inflator to the rear upper part of the roof side airbag rapidly flows into all of the plurality of inflatable portions including the foremost inflatable portion. Since gas is supplied from the rear upper part of the roof side airbag, the gas pressure for inflating the foremost inflatable part is relatively small. For this reason, when the foremost expansion part breaks the pillar garnish and expands, the load acting on the pillar garnish can be small.

しかしながら、車両のなかには、車室に前部座席と中間座席と後部座席の前後3席を設けた車種もある。このような車両においても、前後3席に座っている全乗員を、ルーフサイドエアバッグによって十分に保護できることが求められる。その分、ルーフサイドエアバッグの長さを大きくするとともに、ルーフサイドエアバッグを膨出させるためのガス流量を増大させることになる。
しかも、従来のルーフサイドエアバッグは、後上部からガスが流入するので、最前の膨張部までのガス流入経路が長い。この結果、ガス流入経路の圧力損失が増大するので、最前の膨張部を膨張させるガス圧は低下してしまう。
However, some vehicles have three front and rear seats in the passenger compartment, a front seat, an intermediate seat, and a rear seat. Even in such a vehicle, it is required that all occupants sitting in three front and rear seats can be sufficiently protected by the roof side airbag. Accordingly, the length of the roof side airbag is increased, and the gas flow rate for inflating the roof side airbag is increased.
Moreover, in the conventional roof side airbag, the gas flows in from the rear upper part, so the gas inflow path to the foremost inflated part is long. As a result, the pressure loss in the gas inflow path increases, so that the gas pressure for expanding the foremost inflating portion decreases.

この点を考慮して、最前の膨張部を含め、全ての膨出部を迅速に且つ十分に膨張させるためには、ガス入口部を車室前後方向の略中央に設けることが考えられる。しかし、単にガス入口部を略中央に設けたのでは、最前の膨張部を膨張させるガス圧が増大し得る。このようなことから、適切なガス圧に設定することは極めて困難である。   In consideration of this point, in order to quickly and sufficiently expand all the bulging portions including the foremost inflating portion, it is conceivable to provide the gas inlet portion at substantially the center in the vehicle longitudinal direction. However, if the gas inlet portion is simply provided at substantially the center, the gas pressure for expanding the foremost inflatable portion may increase. For this reason, it is extremely difficult to set an appropriate gas pressure.

本発明は、車室に前部座席と中間座席と後部座席の前後3席を設けた車両のための車両用乗員保護装置において、(1)ルーフサイドエアバッグによって前後3席に座っている全乗員を、より一層十分に保護することができるとともに、(2)ルーフサイドエアバッグを膨張・展開させたときに、ルーフサイドエアバッグからフロントピラーのピラーガーニッシュに過大な荷重が作用しないようにできる、技術を提供することを課題とする。   The present invention relates to a vehicle occupant protection device for a vehicle in which a front seat, an intermediate seat, and a rear seat are provided in a passenger compartment in a vehicle compartment. (1) All seated in three front and rear seats by a roof side airbag The occupant can be more fully protected, and (2) when the roof side airbag is inflated and deployed, an excessive load can be prevented from acting on the pillar garnish of the front pillar from the roof side airbag. The problem is to provide technology.

請求項1に係る発明は、車室に前部座席と中間座席と後部座席の前後3席を設けた車両のための車両用乗員保護装置であって、車体の前部に設けられたフロントピラーの車室側に、一定のピラー空間部を有してピラーガーニッシュを取付け、また、ルーフの側部コーナで車室側に、車室前後方向に細長い一定のルーフ空間部を設け、これらのピラー空間部並びにルーフ空間部にルーフサイドエアバッグを収納し、インフレータが発生したガスにより、ルーフサイドエアバッグをサイドガラスに沿って車室側へ膨張させることで、前後3席の各乗員を保護するようにした車両用乗員保護装置において、
ルーフサイドエアバッグは、インフレータからガスの供給を受けるべく車室前後方向の略中央に配置したガス入口部と、このガス入口部から前記ルーフ空間部に沿って車室前後方向に延びたガス主流路と、前部座席に対応する位置で膨張する前部バッグ部と、中間座席に対応する位置で膨張する中間バッグ部と、後部座席に対応する位置で膨張する後部バッグ部とを備え、これらの各バッグ部にガス主流路を連通させ、
この前部バッグ部は、サイドガラスに沿って車室側へ膨張するときに、ガス主流路から流入するガスが、下方へ向かった後に前上方へ折り返す方向に流れるように膨張部を構成したことを特徴とする。
The invention according to claim 1 is a vehicle occupant protection device for a vehicle in which a front passenger seat, an intermediate seat, and a rear passenger seat are provided in the passenger compartment, and the front pillar is provided at the front portion of the vehicle body. A pillar garnish having a fixed pillar space is attached to the vehicle interior side of the vehicle, and a fixed roof space elongated in the vehicle front-rear direction is provided on the vehicle side at the side corner of the roof. The roof side airbag is housed in the space and the roof space, and the gas generated by the inflator is used to inflate the roof side airbag along the side glass toward the passenger compartment to protect each passenger in the three front and rear seats. In the vehicle occupant protection device,
The roof side airbag has a gas inlet portion disposed substantially in the center of the vehicle front-rear direction to receive gas supply from the inflator, and a gas mainstream extending from the gas inlet portion along the roof space portion in the vehicle front-rear direction. A road, a front bag portion that expands at a position corresponding to the front seat, an intermediate bag portion that expands at a position corresponding to the intermediate seat, and a rear bag portion that expands at a position corresponding to the rear seat. The main gas channel is connected to each bag part of
When this front bag part expands to the vehicle compartment side along the side glass, the gas flowing in from the gas main flow path is configured so that the expansion part flows so as to flow in the direction of turning back upward and downward. Features.

請求項1に係る発明では、車室に前部座席と中間座席と後部座席の前後3席を設けた車両のための車両用乗員保護装置において、ルーフサイドエアバッグに、(1)車室前後方向の略中央に配置したガス入口部と、(2)ガス入口部からルーフ空間部に沿って車室前後方向に延びたガス主流路と、(3)ガス主流路に連通して、前部座席に対応する位置で膨張する前部バッグ部と、(4)ガス主流路に連通して、中間座席に対応する位置で膨張する中間バッグ部と、(5)ガス主流路に連通して、後部座席に対応する位置で膨張する後部バッグ部と、を備え、さらに(6)前部バッグ部は、前部バッグ部をサイドガラスに沿って車室側へ膨張させるときに、ガス主流路から流入するガスが、下方へ向かった後に前上方へ折り返す方向に流れるように膨張部を構成したものである。   According to the first aspect of the present invention, in the vehicle occupant protection device for a vehicle in which a front passenger seat, an intermediate seat, and a rear passenger seat are provided in the passenger compartment, the roof side airbag includes (1) front and rear passenger compartments. A gas inlet portion disposed substantially in the center of the direction; (2) a gas main passage extending from the gas inlet portion along the roof space portion in the longitudinal direction of the passenger compartment; and (3) a front portion communicating with the gas main passage. A front bag portion that expands at a position corresponding to the seat; (4) an intermediate bag portion that expands at a position corresponding to the intermediate seat; (5) a gas main flow path; A rear bag portion that inflates at a position corresponding to the rear seat, and (6) the front bag portion flows in from the gas main flow path when the front bag portion is inflated along the side glass toward the passenger compartment. Gas flowing in the direction of turning back forward and upward after moving downward It is obtained by constituting the sea urchin inflatable portion.

インフレータが発生したガスは、車室前後方向の略中央に配置されたガス入口部を介してガス主流路に流入し、ガス主流路から更に前部バッグ部、中間バッグ部及び後部バッグ部へ概ね均等に流れる。この結果、折り畳まれている各バッグ部は、膨張しつつサイドガラスに沿って車室側へ展開する。従って、前後3席に座っている全乗員を、確実に且つ十分に保護することができる。   The gas generated by the inflator flows into the gas main flow path through the gas inlet portion disposed at the approximate center in the longitudinal direction of the passenger compartment, and further from the gas main flow path to the front bag portion, the intermediate bag portion, and the rear bag portion. It flows evenly. As a result, each folded bag portion expands toward the passenger compartment along the side glass while expanding. Therefore, all the occupants sitting in the three front and rear seats can be reliably and sufficiently protected.

さらには、ガス主流路から前部バッグ部へ流入したガスを、下方へ向かった後に前上方へ折り返す方向に流すことができる。
詳しくは、ガスが前部バッグ部へ流入し始めた時点では、折り畳まれている前部バッグ部は、下方へ向かうガスによって、下方へ押し広げられつつ、前部バッグ部の後部だけが膨張して展開する。
例えば、前部バッグ部のうち、ピラー空間部に折り畳まれている部分は、ピラーガーニッシュを破断して車室内に展開し始める。この時点では、膨張部のうち、前部バッグ部における前部のガス圧は極めて小さい。従って、前部バッグ部が車室内に展開し始めた時点で、前部バッグ部からピラーガーニッシュに過大な荷重が作用することはない。
Furthermore, the gas that has flowed into the front bag portion from the gas main flow path can flow in the direction of turning back to the front and upward after moving downward.
Specifically, when the gas begins to flow into the front bag portion, the folded front bag portion is expanded downward by the downward gas, and only the rear portion of the front bag portion expands. And expand.
For example, a portion of the front bag portion that is folded into the pillar space portion breaks the pillar garnish and starts to be deployed in the vehicle interior. At this time, the gas pressure at the front portion of the front bag portion of the inflatable portion is extremely small. Therefore, when the front bag portion starts to be deployed in the vehicle compartment, an excessive load does not act on the pillar garnish from the front bag portion.

その後、ガスが前上方へ折り返す方向に流れ始めた時点から、膨張部のうち、前部バッグ部における前上部の部分がガス圧によって、膨張し始める。ピラー空間部から前部バッグ部が車室内に展開した後に、前部バッグ部における前上部の部分が膨張するので、ピラーガーニッシュに過大な荷重が作用することはない。   After that, from the point in time when the gas starts to flow in the direction of turning back forward, the front upper portion of the front bag portion of the inflatable portion begins to expand due to the gas pressure. Since the front upper portion of the front bag portion expands after the front bag portion is deployed from the pillar space portion into the vehicle interior, an excessive load is not applied to the pillar garnish.

このようにして、ルーフサイドエアバッグを膨張・展開させたときに、ルーフサイドエアバッグからピラーガーニッシュに、過大な荷重が作用することを防止できる。   In this way, it is possible to prevent an excessive load from acting on the pillar garnish from the roof side airbag when the roof side airbag is inflated and deployed.

しかも、車室前後方向の略中央にガス入口部を配置したので、ガス入口部から前部バッグ部までのガス流入経路を短くすることができ、ガス流入経路の圧力損失を低減することができる。この結果、前部バッグ部を車室内に膨張し展開させるのに十分なガス圧を、確保することができる。従って、前後3席に座っている全乗員を、より一層十分に保護することができる。   In addition, since the gas inlet portion is disposed substantially in the center in the longitudinal direction of the passenger compartment, the gas inflow route from the gas inlet portion to the front bag portion can be shortened, and the pressure loss in the gas inflow route can be reduced. . As a result, a gas pressure sufficient to inflate and deploy the front bag portion in the vehicle compartment can be ensured. Therefore, all passengers sitting in the three front and rear seats can be more fully protected.

本発明を実施するための最良の形態を添付図に基づいて以下に説明する。なお、「前」、「後」、「左」、「右」、「上」、「下」は運転者から見た方向に従う。
図1は本発明に係る車両を車室側から見た側面図であり、車両10に車両用乗員保護装置50を備えたことを示す(ルーフサイドエアバッグ53を展開した状態)。なお、車両用乗員保護装置50については車両10の右側に配置した構成だけを示す。左側の車両用乗員保護装置50も右側と同様の構成なので、説明を省略する。
The best mode for carrying out the present invention will be described below with reference to the accompanying drawings. Note that “front”, “rear”, “left”, “right”, “upper”, and “lower” follow the direction seen from the driver.
FIG. 1 is a side view of a vehicle according to the present invention as viewed from the passenger compartment side, and shows that the vehicle 10 includes a vehicle occupant protection device 50 (a state in which the roof side airbag 53 is deployed). In addition, about the vehicle occupant protection device 50, only the structure arrange | positioned on the right side of the vehicle 10 is shown. The vehicle occupant protection device 50 on the left side has the same configuration as that on the right side, and a description thereof will be omitted.

車両10は、車室11に前部座席12と中間座席13と後部座席14の前後3席を設けた、一般にミニバンと称する自動車である。このような車両10における車体20は、前部のフロントピラー21と、中間部2個の前ミドルピラー22並びに後ミドルピラー23と、後部のリヤピラー24とを有し、これらの各ピラー21〜24の上端にルーフサイドレール25を有し、ルーフサイドレール25でルーフ26を支える構成である。この車両10は、さらに各ピラー21〜24間に前部サイドガラス31、中間部サイドガラス32、後部サイドガラス33を備える。   The vehicle 10 is an automobile generally referred to as a minivan, in which three front and rear seats including a front seat 12, an intermediate seat 13, and a rear seat 14 are provided in a passenger compartment 11. A vehicle body 20 in such a vehicle 10 includes a front front pillar 21, two middle front pillars 22 and a rear middle pillar 23, and a rear rear pillar 24, and each of these pillars 21 to 24. The roof side rail 25 is provided at the upper end of the roof, and the roof 26 is supported by the roof side rail 25. The vehicle 10 further includes a front side glass 31, an intermediate side glass 32, and a rear side glass 33 between the pillars 21 to 24.

さらに図1は、後部座席14のうち最も右側に座っている乗員Maを、シートベルト装置40によって拘束していることを示す。シートベルト装置40は、リトラクタ41に巻取られたシートベルト42を引出して、スルーリング43を通した後にロアアンカ44に掛け止めるようにしたものである。リトラクタ41は、リヤピラー24の下部に取付けたベルト巻取り器である。スルーリング43は、リヤピラー24の上部に取付けた部材である。ロアアンカ44は、後部座席14のクッションの側部に取付けた部材である。シートベルト42によって乗員Maの上半身並びに腰部を拘束することができる。   Further, FIG. 1 shows that the occupant Ma sitting on the rightmost side of the rear seat 14 is restrained by the seat belt device 40. The seat belt device 40 is configured such that the seat belt 42 wound around the retractor 41 is pulled out and passed through the through ring 43 and then hooked to the lower anchor 44. The retractor 41 is a belt winder attached to the lower part of the rear pillar 24. The through ring 43 is a member attached to the upper part of the rear pillar 24. The lower anchor 44 is a member attached to the side of the cushion of the rear seat 14. The upper part of the occupant Ma and the waist can be restrained by the seat belt 42.

上記車両用乗員保護装置50は、車両10の側部に一定以上の衝撃力を受けたことを衝撃検出センサ(図示せず)で検出し、そのセンサ信号に応じてインフレータ51がガスを発生し、このガスを供給管52を介してルーフサイドエアバッグ53に供給することにより、ルーフサイドエアバッグ53がサイドガラス31〜33に沿って、車室11側へ膨張するものである。
膨張して車室11内に展開したルーフサイドエアバッグ53は、各サイドガラス31〜33を覆うとともに、各座席12〜14に座っている乗員Maの特に頭部Heを保護することができる。
The vehicle occupant protection device 50 detects that an impact force of a certain level or more is applied to the side portion of the vehicle 10 with an impact detection sensor (not shown), and the inflator 51 generates gas in response to the sensor signal. By supplying this gas to the roof side airbag 53 via the supply pipe 52, the roof side airbag 53 is inflated toward the vehicle compartment 11 along the side glasses 31 to 33.
The roof side airbag 53 inflated and deployed in the passenger compartment 11 covers the side glasses 31 to 33 and can protect particularly the head He of the occupant Ma sitting on the seats 12 to 14.

図2は本発明に係る車両用乗員保護装置を車室側から見た斜視図であり、ルーフサイドエアバッグ53を収納した状態を示す。
図1及び図2に示すように、供給管52は、インフレータ51からルーフサイドエアバッグ53にガスを供給するガスパイプである。インフレータ51及び供給管52は、車体前後方向(紙面の左右方向)に延ばしてルーフサイドエアバッグ53に並列に配置している。
FIG. 2 is a perspective view of the vehicle occupant protection device according to the present invention as viewed from the passenger compartment side, and shows a state in which the roof side airbag 53 is stored.
As shown in FIGS. 1 and 2, the supply pipe 52 is a gas pipe that supplies gas from the inflator 51 to the roof side airbag 53. The inflator 51 and the supply pipe 52 extend in the vehicle body front-rear direction (left-right direction on the paper surface) and are arranged in parallel with the roof side airbag 53.

車体20は、ルーフ26における側部コーナ26aで車室11側に、車体前後方向(すなわち、車室前後方向)に細長い一定のルーフ空間部S1(空間部S1)を有し、このルーフ空間部S1にインフレータ51、供給管52及びルーフサイドエアバッグ53を収納することになる。
また、車体20は前部に設けたフロントピラー21の車室11側に、一定のピラー空間部S2を有してピラーガーニッシュ54を取付け、ピラー空間部S2にルーフサイドエアバッグ53の前部を収納したものである。
The vehicle body 20 has a fixed roof space portion S1 (space portion S1) elongated in the vehicle longitudinal direction (that is, the vehicle longitudinal direction) on the side of the vehicle compartment 11 at the side corner 26a of the roof 26, and this roof space portion. The inflator 51, the supply pipe 52, and the roof side airbag 53 are accommodated in S1.
In addition, the vehicle body 20 has a pillar space portion S2 and a pillar garnish 54 attached to the front pillar 21 provided at the front portion on the side of the passenger compartment 11, and the front portion of the roof side airbag 53 is attached to the pillar space portion S2. It is what was stored.

さらに車体20は、(1)フロントピラー21にブラケット55を介して、ルーフサイドエアバッグ53の前端部53aをバンド等の締結部材56によって取付け、(2)リヤピラー24にブラケット57を介してルーフサイドエアバッグ53の後端部53bをバンド等の締結部材58によって取付け、ルーフサイドレール25に各種固定機構61〜67によって取付けたものである。
図2に示すように、固定機構63は、第1取付ブラケット151と第2取付ブラケット152とからなる。
Further, the vehicle body 20 is (1) the front end portion 53a of the roof side airbag 53 is attached to the front pillar 21 via the bracket 55 by a fastening member 56 such as a band, and (2) the roof side is attached to the rear pillar 24 via the bracket 57. The rear end portion 53b of the airbag 53 is attached by a fastening member 58 such as a band, and is attached to the roof side rail 25 by various fixing mechanisms 61 to 67.
As shown in FIG. 2, the fixing mechanism 63 includes a first mounting bracket 151 and a second mounting bracket 152.

図3は本発明に係るルーフサイドエアバッグを展開した状態の車両用乗員保護装置を車室側から見た側面図である。
図1及び図3に示すように、ルーフサイドエアバッグ53は気密性を有した布製等の、柔軟性を有するシートからなり、(1)車室前後方向の略中央に配置した、前後2個のガス入口部71F,71Rと、(2)ガス入口部71F,71Rからルーフ空間部S1に沿って車室前後方向に延びた前後2個のガス主流路72F,72Rと、(3)これらのガス主流路72F,72Rに個別に通して、前後2個のガス入口部71F,71Rに一端を個別に連通した、前後2個のインナチューブ73F,73Rと、(4)前のインナチューブ73Fに、前のガス主流路72Fを介して連通し、前部座席12に対応する位置で膨張する前部バッグ部74Fと、(5)後のインナチューブ73Rに、後のガス主流路72Rを介して連通し、中間座席13に対応する位置で膨張する中間バッグ部74Mと、(6)後のインナチューブ73Rに、後のガス主流路72Rを介して連通し、後部座席14に対応する位置で膨張する後部バッグ部74Rとを、一体に備える。
FIG. 3 is a side view of the vehicle occupant protection device in a state in which the roof side airbag according to the present invention is deployed as viewed from the passenger compartment side.
As shown in FIGS. 1 and 3, the roof side airbag 53 is made of a flexible seat such as a cloth having airtightness, and (1) two front and rear pieces arranged substantially at the center in the longitudinal direction of the passenger compartment. (2) two front and rear gas main flow paths 72F and 72R extending in the longitudinal direction of the passenger compartment along the roof space S1 from the gas inlet portions 71F and 71R, and (3) these The front and rear inner tubes 73F and 73R, which are individually passed through the gas main flow paths 72F and 72R and individually communicated at one end with the front and rear two gas inlet portions 71F and 71R, and (4) the front inner tube 73F. The front bag part 74F communicates via the front gas main flow path 72F and expands at a position corresponding to the front seat 12, and (5) the rear inner tube 73R via the rear gas main flow path 72R. Communication with the intermediate seat 13 An intermediate bag portion 74M that expands at a corresponding position, and (6) a rear bag portion 74R that communicates with the rear inner tube 73R via the rear gas main flow path 72R and expands at a position corresponding to the rear seat 14. , In one piece.

前部バッグ部74Fは、前部バッグ部74Fを前部サイドガラス31に沿って車室11側へ膨張させるときに、前のガス主流路72Fから流入するガスが、下方へ向かった後に前上方へ折り返す方向に流れるように、前後3個の膨張部75a〜75cを構成したものである。
これらの膨張部75a〜75cは、前端の前部膨張部75a、中間の中間膨張部75b、後端の後部膨張部75cを1列に配列した構成である。前部膨張部75aと中間膨張部75bとは互いに密着し、中間膨張部75bと後部膨張部75cとは互いに密着している。
When the front bag part 74F expands the front bag part 74F along the front side glass 31 toward the vehicle compartment 11, the gas flowing in from the front gas main flow path 72F moves downward and forwards upward. The three inflatable parts 75a to 75c are configured to flow in the direction of folding.
These inflating portions 75a to 75c have a configuration in which a front inflating portion 75a at the front end, an intermediate inflating portion 75b, and a rear inflating portion 75c at the rear end are arranged in a line. The front expansion part 75a and the intermediate expansion part 75b are in close contact with each other, and the intermediate expansion part 75b and the rear expansion part 75c are in close contact with each other.

前部バッグ部74Fにおいて、中間膨張部75cは、上端の開口を前のガス主流路72Fにおける前端近傍に配置して連通し、前下端を前部膨張部75aの後下端の開口に連通したものである。前部膨張部75aは、後下端にのみ開口を有する。後部膨張部75cは、上端の開口を前のガス主流路72Fにおける前端近傍に配置して連通したものである。   In the front bag portion 74F, the intermediate inflating portion 75c has an upper end opening arranged near the front end of the front gas main flow path 72F and communicated, and a front lower end communicated with an opening at the rear lower end of the front inflating portion 75a. It is. The front inflating part 75a has an opening only at the rear lower end. The rear inflating portion 75c is in communication with the upper end opening disposed near the front end of the front gas main flow path 72F.

中間バッグ部74Mは、前後2個のガス入口部71F,71Rの下方に配列した前後3個の膨張部76a〜76cからなる。これらの膨張部76a〜76cは、前端の前部膨張部76a、中間の中間膨張部76b、後端の後部膨張部76cを1列に配列した構成である。前部膨張部76aと中間膨張部76bとは互いに密着し、中間膨張部76bと後部膨張部76cとは互いに密着している。   The intermediate bag portion 74M includes three front and rear inflatable portions 76a to 76c arranged below the two front and rear gas inlet portions 71F and 71R. These inflatable portions 76a to 76c have a configuration in which a front inflatable portion 76a at the front end, an intermediate inflatable portion 76b, and a rear inflatable portion 76c at the rear end are arranged in a line. The front expansion part 76a and the intermediate expansion part 76b are in close contact with each other, and the intermediate expansion part 76b and the rear expansion part 76c are in close contact with each other.

中間バッグ部74Mにおいて、中間膨張部76bは、後上端の開口を後のガス主流路72Rにおける後端近傍に配置して連通し、前上端を前部膨張部76aの後上端の開口に連通したものである。前部膨張部76aは、後上端にのみ開口を有する。後部膨張部76cは、上端の開口を後のガス主流路72Rにおける後端近傍に配置して連通したものである。   In the intermediate bag portion 74M, the intermediate inflating portion 76b communicates with the rear upper end opening disposed near the rear end in the rear gas main flow path 72R, and the front upper end communicated with the rear upper end opening in the front inflating portion 76a. Is. The front expansion portion 76a has an opening only at the rear upper end. The rear inflating portion 76c is in communication with the upper end opening disposed in the vicinity of the rear end in the rear gas main flow path 72R.

後部バッグ部74Rは、後のガス主流路72Rよりも後方に配列した前後2個の膨張部77a、77bからなる。これらの膨張部77a、77bは、前端の前部膨張部77a、後端の後部膨張部77bを1列に配列した構成である。
前部膨張部77aは、前下端の開口を上部連通管78Aを介して後のガス主流路72Rの後端に連通するとともに、前下端の開口を下部連通管78Bを介して中間バッグ部74Mにおける後部膨張部76cの後部開口に連通したものである。
後部膨張部77bは、前下端の開口を前部膨張部77aの後下端の開口に連通したものである。
The rear bag portion 74R includes two front and rear inflatable portions 77a and 77b arranged rearward of the rear gas main flow path 72R. These inflating portions 77a and 77b have a configuration in which a front inflating portion 77a at the front end and a rear inflating portion 77b at the rear end are arranged in a line.
The front inflating portion 77a communicates the opening at the front lower end with the rear end of the rear gas main flow path 72R via the upper communication pipe 78A and the opening at the front lower end in the intermediate bag portion 74M via the lower communication pipe 78B. It communicates with the rear opening of the rear expansion portion 76c.
The rear inflating part 77b communicates the opening at the front lower end with the opening at the rear lower end of the front inflating part 77a.

ところで、ルーフサイドエアバッグ53は、各バッグ部74F,74M,74Rの周囲に非膨張部79を一体に備える。非膨張部79は、前端の前部非膨張部79Aと、中間の中間非膨張部79Bと、後端の後部非膨張部79Cとからなる。
前部非膨張部79Aは、紐状又はバンド状の前ストラップ81を備える。後部非膨張部79Bは、紐状又はバンド状の後ストラップ82、及びスリット83を備える。
図3において、86F,86Rは前後2個のインナチューブ73F,73Rに各々開けた噴出孔である。
By the way, the roof side airbag 53 is integrally provided with a non-inflatable portion 79 around each bag portion 74F, 74M, 74R. The non-expandable portion 79 includes a front non-expandable portion 79A at the front end, an intermediate non-expandable portion 79B, and a rear non-expandable portion 79C at the rear end.
The front non-inflatable portion 79A includes a string-like or band-like front strap 81. The rear non-inflatable portion 79B includes a string-like or band-like rear strap 82 and a slit 83.
In FIG. 3, 86F and 86R are jet holes opened in the two front and rear inner tubes 73F and 73R, respectively.

図4は本発明に係る車両用乗員保護装置の要部拡大図であり、図2に概ね対応させて表した。図5は図4の5−5線断面図である。
図5において、車両用乗員保護装置50の収納構造を更に詳しく説明する。上述したように車体20は、ルーフ26における側部コーナ26aで車室11側にルーフ空間部S1を有し、このルーフ空間部S1にインフレータ51、供給管52、折り畳んだ状態のルーフサイドエアバッグ53を収納したものである。
ここで、ルーフ空間部S1は、ルーフ26における側部コーナ26aと、ルーフ26の内張りとなるルーフライニング84との間に形成されたスペースである。
FIG. 4 is an enlarged view of a main part of the vehicle occupant protection device according to the present invention, and is shown corresponding to FIG. 5 is a cross-sectional view taken along line 5-5 of FIG.
5, the storage structure of the vehicle occupant protection device 50 will be described in more detail. As described above, the vehicle body 20 has the roof space portion S1 on the side of the vehicle compartment 11 at the side corner 26a of the roof 26, and the inflator 51, the supply pipe 52, and the folded roof side airbag in the roof space portion S1. 53 is stored.
Here, the roof space S <b> 1 is a space formed between the side corner 26 a of the roof 26 and the roof lining 84 that serves as the lining of the roof 26.

図4に示すように、車体前後方向に細長いインフレータ51は、前側先端のガス出口51aから供給管52を車体前方(図4の左側)へ延ばしたものである。このようなインフレータ51及び供給管52は、折り畳んだ状態のルーフサイドエアバッグ53に概ね沿わせて配置することになる。供給管52の前端は、ルーフサイドエアバッグ53のガス入口部71F,71Rに接続した構成である。   As shown in FIG. 4, the inflator 51 elongated in the longitudinal direction of the vehicle body extends from the gas outlet 51a at the front end to the front of the vehicle body (left side in FIG. 4). Such an inflator 51 and the supply pipe 52 are arranged along the roof side airbag 53 in a folded state. The front end of the supply pipe 52 is configured to be connected to the gas inlet portions 71F and 71R of the roof side airbag 53.

図5に示すように、ルーフサイドエアバッグ53は渦巻状に折り畳まれた(巻かれた)状態では、布製筒状のバッグカバー91によって包まれた収納状態である。なお、バッグカバー91は、ミシン目等の切れ目を有しており、ルーフサイドエアバッグ53が膨張したときの力で容易に開くことができる。
このように折り畳まれた状態のルーフサイドエアバッグ53は、バッグ用ブラケット92によってルーフサイドレール25に取り付けることができる。
As shown in FIG. 5, the roof side airbag 53 is in a housed state wrapped by a cloth tubular bag cover 91 in a spirally folded (wrapped) state. The bag cover 91 has a perforation such as a perforation and can be easily opened by a force when the roof side airbag 53 is inflated.
The roof side airbag 53 in such a folded state can be attached to the roof side rail 25 by the bag bracket 92.

一方、図4及び図5に示すように、インフレータ51は、インフレータ用ブラケット93によってルーフサイドレール25に取り付けることができる。また、供給管52は、供給管用ブラケット94によってルーフサイドレール25に取り付けることができる。   On the other hand, as shown in FIGS. 4 and 5, the inflator 51 can be attached to the roof side rail 25 by an inflator bracket 93. The supply pipe 52 can be attached to the roof side rail 25 by a supply pipe bracket 94.

図4及び図5に示すように、バッグ用ブラケット92は、鋼板の折り曲げ成形品であり、バッグカバー91で包まれたルーフサイドエアバッグ53を挟み込むように保持するフォーク状の本体部92aと、本体部92aからルーフサイドレール25に沿って上方へ延びる板状の取付部92bとからなる。   As shown in FIGS. 4 and 5, the bag bracket 92 is a bent product of a steel plate, and a fork-shaped main body portion 92 a that holds the roof side airbag 53 wrapped by the bag cover 91 so as to sandwich it, It comprises a plate-like attachment portion 92b extending upward from the main body portion 92a along the roof side rail 25.

一方、供給管用ブラケット94は、鋼板の折り曲げ成形品であり、供給管52に溶接等で固定した本体部94aと、本体部94aからバッグ用ブラケット92側へ延びた板状の取付部94bとからなる。   On the other hand, the supply pipe bracket 94 is a bent product of a steel plate, and includes a main body portion 94a fixed to the supply pipe 52 by welding or the like, and a plate-like attachment portion 94b extending from the main body portion 94a to the bag bracket 92 side. Become.

これらの取付部92b,94bをルーフサイドレール25に重ねて、各取付部92b,94bをルーフサイドレール25に1個のボルト95にて固定することにより、車体20に各ブラケット92,94をボルト95の共締めにより取付けることができる。この結果、供給管52とルーフサイドエアバッグ53とを、車体20にボルト95の共締めにより取付けることができる。
バッグ用ブラケット92と供給管用ブラケット94とボルト95との組合せ構造は、車体20に対する固定機構64を成す。
These mounting portions 92b, 94b are overlapped on the roof side rail 25, and each mounting portion 92b, 94b is fixed to the roof side rail 25 with one bolt 95, whereby each bracket 92, 94 is bolted to the vehicle body 20. It can be attached by tightening 95. As a result, the supply pipe 52 and the roof side airbag 53 can be attached to the vehicle body 20 by tightening the bolts 95 together.
The combination structure of the bag bracket 92, the supply pipe bracket 94 and the bolt 95 constitutes a fixing mechanism 64 for the vehicle body 20.

図5に示すインフレータ用ブラケット93も、供給管用ブラケット94と同様の構成である。このため、車体20に各ブラケット92,93をボルト95の共締めにより取付けることができる。この結果、インフレータ51とルーフサイドエアバッグ53とを、車体20にボルト95の共締めにより取付けることができる。
バッグ用ブラケット92とインフレータ用ブラケット93とボルト95との組合せ構造は、車体20に対する固定機構65を成す。
The inflator bracket 93 shown in FIG. 5 has the same configuration as the supply pipe bracket 94. For this reason, the brackets 92 and 93 can be attached to the vehicle body 20 by fastening the bolts 95 together. As a result, the inflator 51 and the roof side airbag 53 can be attached to the vehicle body 20 by fastening the bolts 95 together.
The combination structure of the bag bracket 92, the inflator bracket 93 and the bolt 95 constitutes a fixing mechanism 65 for the vehicle body 20.

以上の説明から明らかなように、車両用乗員保護装置50は、インフレータ51からルーフサイドエアバッグ53にガスを供給する供給管52を、車体前後方向に延ばして、ルーフサイドエアバッグ53に並列に配置するとともに、インフレータ51及びルーフサイドエアバッグ53と共にルーフ空間部S1に収納し、インフレータ51並びに供給管52の少なくとも一方と、ルーフサイドエアバッグ53とを、車体20にボルト95,95の共締めにより取付けたものである。   As is clear from the above description, the vehicle occupant protection device 50 extends the supply pipe 52 that supplies gas from the inflator 51 to the roof side airbag 53 in the longitudinal direction of the vehicle body and is in parallel with the roof side airbag 53. And at least one of the inflator 51 and the supply pipe 52 and the roof side airbag 53 are fastened together with bolts 95 and 95 to the vehicle body 20 together with the inflator 51 and the roof side airbag 53. It is attached by.

インフレータ51に対してルーフサイドエアバッグ53を、より適切な位置に合わせた状態で、車体20に取付けることができるこのため、インフレータ51に対して、ルーフサイドエアバッグ53が捩れた状態で固定されることはない。従って、インフレータ51のガスをルーフサイドエアバッグ53に適切に供給して、ルーフサイドエアバッグ53を、より適切に且つ安定して膨張・展開させることができる。   The roof side airbag 53 can be attached to the vehicle body 20 in a state in which the roof side airbag 53 is adjusted to a more appropriate position with respect to the inflator 51. Therefore, the roof side airbag 53 is fixed to the inflator 51 in a twisted state. Never happen. Therefore, the gas of the inflator 51 can be appropriately supplied to the roof side airbag 53, and the roof side airbag 53 can be inflated and deployed more appropriately and stably.

さらには、インフレータ51並びに供給管52の少なくとも一方と、ルーフサイドエアバッグ53とを、車体20にボルト95,95の共締めにより取付けたので、その分、車体20に対する取付け箇所を低減することができる。従って、車体20に対するインフレータ51及びルーフサイドエアバッグ53の取付け部品数を低減し、且つ取付け工数を低減することができ、容易に取付けることができる。   Furthermore, since at least one of the inflator 51 and the supply pipe 52 and the roof side airbag 53 are attached to the vehicle body 20 by fastening the bolts 95 and 95 together, it is possible to reduce the amount of attachment to the vehicle body 20 correspondingly. it can. Therefore, the number of attachment parts of the inflator 51 and the roof side airbag 53 to the vehicle body 20 can be reduced, the number of attachment steps can be reduced, and the attachment can be easily performed.

図6は本発明に係るルーフサイドエアバッグのガス入口部周りの側面図であり、図3に対応させて表した。図7は図6の7−7線断面図である。
図6及び図7に示すように、ルーフサイドエアバッグ53は、このバッグ53における車室前後方向の略中央に配置した前後2個のガス入口部71F,71Rと、これら2個のガス入口部71F,71Rにおける各近傍同士を連結したブリッジ部87とを、備えたことを特徴とする。
FIG. 6 is a side view around the gas inlet portion of the roof side airbag according to the present invention and is shown corresponding to FIG. 7 is a cross-sectional view taken along line 7-7 of FIG.
As shown in FIGS. 6 and 7, the roof side airbag 53 includes two front and rear gas inlet portions 71 </ b> F and 71 </ b> R disposed in the center of the bag 53 in the longitudinal direction of the passenger compartment, and the two gas inlet portions. It is characterized by comprising a bridge portion 87 that connects the neighborhoods of 71F and 71R.

前後2個のガス入口部71F,71Rは、互いに向かい合わせて前後1列に配置したものである。上述のように、供給管52は、ルーフサイドエアバッグ53に対し平行に配置して、車室前方にバッグ53中央まで延び、その前端を屈曲させてガス入口部71F,71R側へ向かって垂下部52aを延ばし、その先端に二股状に分岐した前後2個の接続管部52b,52bを設けることで、供給管52のガス供給先端部分を、垂下部52aと2個の接続管部52b,52bとで略T字状に形成したものである。   The two front and rear gas inlet portions 71F and 71R are arranged in a row in the front and rear direction so as to face each other. As described above, the supply pipe 52 is arranged in parallel to the roof side airbag 53, extends to the center of the bag 53 in front of the passenger compartment, and bends toward the gas inlet portions 71F and 71R with its front end bent. By extending the portion 52a and providing two front and rear connecting pipe portions 52b and 52b that branch into a bifurcated shape at the tip, the gas supply tip portion of the supply pipe 52 is connected to the drooping portion 52a and the two connecting pipe portions 52b, 52b and a substantially T-shape.

図6に示すように、バッグ53中央部において、前後のガス主流路72F,72Rは端部が前後に互いに一定距離だけ離れており、この離れた切り欠き状の凹部101を、バッグ本体部分(非膨出部分)にて繋がった構成である。   As shown in FIG. 6, at the central portion of the bag 53, the front and rear gas main flow paths 72F and 72R are separated from each other by a predetermined distance in the front and rear, and the notched recess 101 is separated from the bag main body portion ( It is the structure connected by the non-bulged part.

図6及び図7に示すように、前後のガス入口部71F,71Rは、ガス主流路72F,72Rの中央側の端部を、細長い管状に形成したものであり、これらの管の中にインナチューブ73F,73Rの端部を、気密性を有して嵌合している。このため、ガス入口部71F,71Rは、ガス主流路72F,72Rの細長い管とインナチューブ73F,73Rの端部との二重管であり、車室前後方向(図6の左右方向)に同心に配列することになる。
前後に延びる2個の接続管部52b,52bを、ガス入口部71F,71Rに差し込んでバンド102,102にて止めることで、互いに連結することができる。
As shown in FIGS. 6 and 7, the front and rear gas inlet portions 71F and 71R are formed by forming the end portions on the center side of the gas main flow paths 72F and 72R into an elongated tubular shape. The ends of the tubes 73F and 73R are fitted with airtightness. For this reason, the gas inlet portions 71F and 71R are double tubes composed of the elongated tubes of the gas main flow paths 72F and 72R and the end portions of the inner tubes 73F and 73R, and are concentric in the longitudinal direction of the passenger compartment (the left-right direction in FIG. 6). Will be arranged.
The two connecting pipe portions 52b and 52b extending in the front-rear direction can be connected to each other by being inserted into the gas inlet portions 71F and 71R and stopped at the bands 102 and 102.

インナチューブ73F,73Rは、気密性を有した布製等の、柔軟性を有するシートを管状に丸めて縫製することで形成した直管であって、この直管の縁に鋼製の丸棒からなるロッド103L,103Rを芯金として沿わせた構成である。   The inner tubes 73F and 73R are straight pipes formed by rolling a flexible sheet such as a cloth having airtightness into a tubular shape and sewing it, and a steel round bar is formed on the edge of the straight pipe. The rods 103L and 103R to be arranged along the core metal.

ところで、凹部101は切り欠き状であるから、一端側が開放している。ブリッジ部87は、凹部101の開放端同士を連結したものである。より具体的には、ガス主流路72F,72Rのうち、ガス入口部71F,71Rの基端部分又はその近傍をブリッジ部87にて繋いだ。このようなブリッジ部87は、例えば、ガス主流路72F,72Rを成すシートにおける、縁の一部を延長した一定幅の帯にて構成すればよい。   By the way, since the recessed part 101 is a notch shape, the one end side is open | released. The bridge part 87 connects the open ends of the recess 101. More specifically, in the gas main flow paths 72F and 72R, the base end portions of the gas inlet portions 71F and 71R or the vicinity thereof are connected by the bridge portion 87. Such a bridge portion 87 may be constituted by a band having a constant width obtained by extending a part of the edge in the sheet forming the gas main flow paths 72F and 72R, for example.

次に、上記構成のブリッジ部87の作用について、図6及び図8に基づき説明する。
図8は比較例のルーフサイドエアバッグのガス入口部周りの側面図であり、図6に対応させて表した。
図8に示す比較例の車両用乗員保護装置50Aは、ルーフサイドエアバッグ53Aの2個のガス入口部71F,71Rにおける各近傍同士をブリッジ部87(図6参照)にて連結していない構成である。このような、比較例のルーフサイドエアバッグ53Aは、略中央に前後2個のガス入口部71F,71Rを設けたことにより、ガス入口部71F,71R周りが前部と後部とで分離することになる。このため、ルーフサイドエアバッグ53Aを折り畳む作業時に、中央付近で(特に、ガス主流路72F,72Rで)前後が互いに捩れる心配があるので、改良の余地がある。
Next, the operation of the bridge portion 87 having the above configuration will be described with reference to FIGS.
FIG. 8 is a side view around the gas inlet portion of the roof side airbag of the comparative example, and is shown corresponding to FIG.
The vehicle occupant protection device 50A of the comparative example shown in FIG. 8 is configured such that the neighborhoods of the two gas inlet portions 71F and 71R of the roof side airbag 53A are not connected to each other by a bridge portion 87 (see FIG. 6). It is. Such a roof side airbag 53A of the comparative example is provided with the two front and rear gas inlet portions 71F and 71R at substantially the center, so that the periphery of the gas inlet portion 71F and 71R is separated into the front portion and the rear portion. become. For this reason, when folding the roof side airbag 53A, there is a possibility that the front and rear are twisted near each other (particularly, in the gas main flow paths 72F and 72R), so there is room for improvement.

これに対し本発明では、図6及び図7に示すように、2個のガス入口部71F,71Rにおける各近傍同士をブリッジ部87にて連結したので、ルーフサイドエアバッグ53を折り畳む作業時に、中央付近で前後が互いに捩れることを、ブリッジ部87にて防止することができる。
このため、ルーフサイドエアバッグ53を十分に適切な状態に折り畳んで、ルーフ空間部S1(図1参照)に収納することができる。従って、インフレータ51が発生したガスによって、ルーフサイドエアバッグ53を一層確実に膨張させ展開させることができる。
On the other hand, in the present invention, as shown in FIGS. 6 and 7, the vicinity of the two gas inlet portions 71 </ b> F and 71 </ b> R are connected by the bridge portion 87, so when the roof side airbag 53 is folded, It is possible to prevent the bridge portion 87 from twisting the front and rear in the vicinity of the center.
For this reason, the roof side airbag 53 can be folded into a sufficiently appropriate state and stored in the roof space S1 (see FIG. 1). Therefore, the roof side airbag 53 can be more reliably inflated and deployed by the gas generated by the inflator 51.

次に、上記構成のルーフサイドエアバッグ53の作用について、図1、図3及び図9に基づき説明する。
図9(a)〜(c)は車両用乗員保護装置の作用図である。(a)は実施例の車両用乗員保護装置50の作動開始時を示す。(b)は実施例の車両用乗員保護装置50の作動途中を示す。(c)は比較例の車両用乗員保護装置50Bの作動途中を示す。
Next, the operation of the roof side airbag 53 configured as described above will be described with reference to FIGS. 1, 3, and 9.
9A to 9C are operation diagrams of the vehicle occupant protection device. (A) shows the operation start time of the vehicle occupant protection device 50 of the embodiment. (B) shows the operation | movement middle of the passenger | crew protection device 50 for vehicles of an Example. (C) shows the operation halfway of the vehicle occupant protection device 50B of the comparative example.

図9(c)に示す比較例の車両用乗員保護装置50Bは、ルーフサイドエアバッグ53Bにおける複数の膨張部75x・・・を前後1列に配列したものである。複数の膨張部75x・・・のうち、最も前の膨張部75xはピラーガーニッシュ54を破りつつ膨張することになる。このときに、最も前の膨張部75xのガス圧が大きいと、ルーフサイドエアバッグ53を膨張・展開させたときに、ルーフサイドエアバッグ53からフロントピラーのピラーガーニッシュ54に過大な荷重が作用し得る。   The vehicle occupant protection device 50B of the comparative example shown in FIG. 9C is configured by arranging a plurality of inflating portions 75x... In the roof side airbag 53B in a front and rear row. Among the plurality of inflating portions 75x, the foremost inflating portion 75x inflates while breaking the pillar garnish 54. At this time, if the gas pressure in the foremost inflatable portion 75x is large, an excessive load acts on the pillar garnish 54 of the front pillar from the roof side airbag 53 when the roof side airbag 53 is inflated and deployed. obtain.

これに対して図3に示す実施例においては、インフレータ51(図3参照)が発生したガスは、車室前後方向の略中央に配置されたガス入口部71F,71Rを介してガス主流路72F,72Rに流入し、ガス主流路72F,72Rから更に前部バッグ部74F、中間バッグ部74M及び後部バッグ部74Rへ概ね均等に流れる。
この結果、折り畳まれている各バッグ部74F,74M,74Rは、膨張しつつ図1に示すようにサイドガラス31〜33に沿って車室11側へ展開する。従って、前後3席12〜14に座っている全乗員Maを、確実に且つ十分に保護することができる。
In contrast, in the embodiment shown in FIG. 3, the gas generated by the inflator 51 (see FIG. 3) is the gas main flow path 72 </ b> F via the gas inlet portions 71 </ b> F and 71 </ b> R disposed at the approximate center in the longitudinal direction of the passenger compartment. , 72R, and flows from the gas main flow paths 72F, 72R to the front bag portion 74F, the intermediate bag portion 74M, and the rear bag portion 74R substantially evenly.
As a result, the folded bag portions 74F, 74M, and 74R are expanded toward the vehicle compartment 11 along the side glasses 31 to 33 as shown in FIG. Therefore, all the occupants Ma sitting in the front and rear three seats 12 to 14 can be reliably and sufficiently protected.

さらには、図9(a),(b)の矢印に示すように、前のガス主流路72Fから前部バッグ部74Fへ流入したガスは、下方へ向かった後に前上方へ折り返す方向に流れることができる。   Furthermore, as shown by the arrows in FIGS. 9A and 9B, the gas that has flowed into the front bag portion 74F from the front gas main flow path 72F flows downward and then flows back in the front upper direction. Can do.

詳しくは、図9(a)の矢印G1,G2に示すように、ガスが前部バッグ部74Fへ流入し始めた時点では、折り畳まれている前部バッグ部74Fは、下方へ向かうガスによって、下方へ押し広げられつつ、中間膨張部75b及び後部膨張部75cだけが膨張して展開する。例えば、前部バッグ部74Fのうち、ピラー空間部S2に折り畳まれている部分は、ピラーガーニッシュ54を破断して車室11内に展開し始める。この時点では、膨張部75a〜75cのうち、前部バッグ部74Fにおける前部膨張部75aのガス圧は極めて小さい。
従って、前部バッグ部74Fが車室11内に展開し始めた時点で、前部バッグ部74Fからピラーガーニッシュ54に過大な荷重が作用することはない。
Specifically, as shown by arrows G1 and G2 in FIG. 9A, when the gas begins to flow into the front bag portion 74F, the folded front bag portion 74F is moved downward by the gas. Only the intermediate expansion part 75b and the rear expansion part 75c expand and expand while being pushed downward. For example, a portion of the front bag portion 74F that is folded into the pillar space portion S2 breaks the pillar garnish 54 and starts to be deployed in the passenger compartment 11. At this time, the gas pressure of the front part expansion part 75a in the front bag part 74F is very small among the expansion parts 75a-75c.
Accordingly, when the front bag portion 74F starts to be deployed in the vehicle compartment 11, an excessive load does not act on the pillar garnish 54 from the front bag portion 74F.

その後、図9(b)に示すように、ガスが前上方へ折り返す方向(矢印G3)に流れ始めた時点から、75a〜75cのうち、前部バッグ部74Fにおける前部膨張部75aの前上部の部分がガス圧によって、膨張し始める。ピラー空間部S2から前部バッグ部74Fが車室11内に展開した後に、前部膨張部75aの前上部の部分が膨張するので、ピラーガーニッシュ54に過大な荷重が作用することはない。   Thereafter, as shown in FIG. 9 (b), from the time when the gas starts to flow in the front upper direction (arrow G3), the front upper portion of the front inflatable portion 75a in the front bag portion 74F among 75a to 75c. This part begins to expand due to gas pressure. Since the front upper portion of the front inflating portion 75a expands after the front bag portion 74F is deployed from the pillar space portion S2 into the vehicle compartment 11, an excessive load does not act on the pillar garnish 54.

このようにして、ルーフサイドエアバッグ53を膨張・展開させたときに、ルーフサイドエアバッグ53からピラーガーニッシュ54に、過大な荷重が作用することを防止できる。   In this way, it is possible to prevent an excessive load from acting on the pillar garnish 54 from the roof side airbag 53 when the roof side airbag 53 is inflated and deployed.

しかも、車室前後方向の略中央に前のガス入口部71Fを配置したので、前のガス入口部71Fから前部バッグ部74Fまでのガス流入経路を短くすることができ、ガス流入経路の圧力損失を低減することができる。この結果、前部バッグ部74Fを車室11内に膨張し展開させるのに十分なガス圧を、確保することができる。従って、前後3席12〜14(図1参照)に座っている全乗員を、より一層十分に保護することができる。   In addition, since the front gas inlet portion 71F is disposed substantially in the center in the longitudinal direction of the passenger compartment, the gas inflow path from the front gas inlet portion 71F to the front bag portion 74F can be shortened, and the pressure of the gas inflow path Loss can be reduced. As a result, a gas pressure sufficient to inflate and deploy the front bag portion 74F into the vehicle compartment 11 can be ensured. Therefore, all the occupants sitting in the front and rear three seats 12 to 14 (see FIG. 1) can be more fully protected.

なお、本発明は実施の形態では、インフレータ51並びに供給管52の少なくとも一方と、ルーフサイドエアバッグ53とを、車体20にボルト95,95の共締めにより取付けた構成であればよい。   In the embodiment, the present invention only needs to have a configuration in which at least one of the inflator 51 and the supply pipe 52 and the roof side airbag 53 are attached to the vehicle body 20 by fastening bolts 95 and 95 together.

本発明の車両用乗員保護装置50は、車両10の側部へ衝撃力を受けたときに乗員Maの頭部Heを保護することができるので、乗用車等の車両に好適である。   Since the vehicle occupant protection device 50 of the present invention can protect the head He of the occupant Ma when an impact force is applied to the side portion of the vehicle 10, it is suitable for a vehicle such as a passenger car.

本発明に係る車両を車室側から見た側面図である。It is the side view which looked at the vehicle concerning the present invention from the compartment side. 本発明に係る車両用乗員保護装置を車室側から見た斜視図である。It is the perspective view which looked at the passenger protection device for vehicles concerning the present invention from the cabin side. 本発明に係るルーフサイドエアバッグを展開した状態の車両用乗員保護装置を車室側から見た側面図である。It is the side view which looked at the crew protection device for vehicles in the state where the roof side air bag concerning the present invention was developed from the compartment side. 本発明に係る車両用乗員保護装置の要部拡大図である。It is a principal part enlarged view of the passenger protection device for vehicles concerning the present invention. 図4の5−5線断面図である。FIG. 5 is a sectional view taken along line 5-5 of FIG. 本発明に係るルーフサイドエアバッグのガス入口部周りの側面図である。It is a side view around the gas inlet part of the roof side airbag which concerns on this invention. 図6の7−7線断面図である。FIG. 7 is a cross-sectional view taken along line 7-7 in FIG. 6. 比較例のルーフサイドエアバッグのガス入口部周りの側面図である。It is a side view around the gas inlet part of the roof side airbag of a comparative example. 車両用乗員保護装置の作用図である。It is an operation view of the vehicle occupant protection device.

符号の説明Explanation of symbols

10…車両、11…車室、12…前部座席、13…中間座席、14…後部座席、20…車体、21…フロントピラー、26…ルーフ、26a…ルーフにおける側部コーナ、31〜33…サイドガラス、50…車両用乗員保護装置、51…インフレータ、52…供給管、53…ルーフサイドエアバッグ、54…ピラーガーニッシュ、71F,71R…ガス入口部、72F,72R…ガス主流路、74F…前部バッグ部、74M…中間バッグ部、74R…後部バッグ部、Ma…乗員、He…頭部、S1…ルーフ空間部、S2…ピラー空間部。   DESCRIPTION OF SYMBOLS 10 ... Vehicle, 11 ... Vehicle compartment, 12 ... Front seat, 13 ... Middle seat, 14 ... Rear seat, 20 ... Car body, 21 ... Front pillar, 26 ... Roof, 26a ... Side corner in roof 31-33 ... Side glass, 50 ... Vehicle occupant protection device, 51 ... Inflator, 52 ... Supply pipe, 53 ... Roof side airbag, 54 ... Pillar garnish, 71F, 71R ... Gas inlet, 72F, 72R ... Gas main flow path, 74F ... Front Part bag part, 74M ... intermediate bag part, 74R ... rear bag part, Ma ... occupant, He ... head, S1 ... roof space part, S2 ... pillar space part.

Claims (1)

車室に前部座席と中間座席と後部座席の前後3席を設けた車両のための車両用乗員保護装置であって、車体の前部に設けられたフロントピラーの車室側に、一定のピラー空間部を有してピラーガーニッシュを取付け、また、ルーフの側部コーナで車室側に、車室前後方向に細長い一定のルーフ空間部を設け、これらのピラー空間部並びにルーフ空間部にルーフサイドエアバッグを収納し、インフレータが発生したガスにより、ルーフサイドエアバッグをサイドガラスに沿って車室側へ膨張させることで、前後3席の各乗員を保護するようにした車両用乗員保護装置において、
前記ルーフサイドエアバッグは、前記インフレータからガスの供給を受けるべく車室前後方向の略中央に配置したガス入口部と、このガス入口部から前記ルーフ空間部に沿って車室前後方向に延びたガス主流路と、前記前部座席に対応する位置で膨張する前部バッグ部と、前記中間座席に対応する位置で膨張する中間バッグ部と、前記後部座席に対応する位置で膨張する後部バッグ部とを備え、これらの各バッグ部に前記ガス主流路を連通させ、
前記前部バッグ部は、前記サイドガラスに沿って前記車室側へ膨張するときに、前記ガス主流路から流入するガスが、下方へ向かった後に前上方へ折り返す方向に流れるように膨張部を構成したことを特徴とした車両用乗員保護装置。
A vehicle occupant protection device for a vehicle in which a front seat, an intermediate seat, and a rear seat are provided in a passenger compartment in a vehicle compartment, and is fixed to a vehicle compartment side of a front pillar provided at a front portion of a vehicle body. A pillar garnish is attached with a pillar space, and a fixed roof space that is elongated in the vehicle front-rear direction is provided on the side of the vehicle compartment at the side corner of the roof, and a roof is provided in the pillar space and the roof space. In a vehicle occupant protection device for storing side airbags and inflating the roof side airbag toward the passenger compartment along the side glass by the gas generated by the inflator, thereby protecting each of the three front and rear passengers ,
The roof side airbag extends in the longitudinal direction of the vehicle compartment along the roof space portion from the gas inlet portion, and a gas inlet portion disposed at a substantially central position in the longitudinal direction of the vehicle compartment to receive gas supply from the inflator. A gas main flow path, a front bag portion that expands at a position corresponding to the front seat, an intermediate bag portion that expands at a position corresponding to the intermediate seat, and a rear bag portion that expands at a position corresponding to the rear seat The gas main flow path is communicated with each of these bag parts,
The front bag portion constitutes an inflatable portion so that when inflated to the vehicle compartment side along the side glass, the gas flowing in from the gas main flow path flows in a direction that turns back to the front upper side after going downward. An occupant protection device for a vehicle characterized by the above.
JP2004275550A 2004-09-22 2004-09-22 Vehicle occupant protection device Expired - Fee Related JP4327689B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2004275550A JP4327689B2 (en) 2004-09-22 2004-09-22 Vehicle occupant protection device
US11/231,229 US7407182B2 (en) 2004-09-22 2005-09-20 Vehicle occupant protection device
GB0519396A GB2418401B8 (en) 2004-09-22 2005-09-22 Vehicle occupant protection device
DE102005045370.8A DE102005045370B4 (en) 2004-09-22 2005-09-22 Vehicle occupant protection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004275550A JP4327689B2 (en) 2004-09-22 2004-09-22 Vehicle occupant protection device

Publications (2)

Publication Number Publication Date
JP2006088838A true JP2006088838A (en) 2006-04-06
JP4327689B2 JP4327689B2 (en) 2009-09-09

Family

ID=36230219

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004275550A Expired - Fee Related JP4327689B2 (en) 2004-09-22 2004-09-22 Vehicle occupant protection device

Country Status (1)

Country Link
JP (1) JP4327689B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010149858A (en) * 2006-04-24 2010-07-08 Delphi Korea Llc Automobile side airbag
JP2012101782A (en) * 2010-10-14 2012-05-31 Autoliv Development Ab Curtain airbag
JP2012106551A (en) * 2010-11-16 2012-06-07 Mazda Motor Corp Passenger protection system of vehicle
JP2012148638A (en) * 2011-01-18 2012-08-09 Nippon Plast Co Ltd Curtain airbag device
JP2012148637A (en) * 2011-01-18 2012-08-09 Nippon Plast Co Ltd Curtain airbag device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010149858A (en) * 2006-04-24 2010-07-08 Delphi Korea Llc Automobile side airbag
JP2012101782A (en) * 2010-10-14 2012-05-31 Autoliv Development Ab Curtain airbag
JP2012106551A (en) * 2010-11-16 2012-06-07 Mazda Motor Corp Passenger protection system of vehicle
JP2012148638A (en) * 2011-01-18 2012-08-09 Nippon Plast Co Ltd Curtain airbag device
JP2012148637A (en) * 2011-01-18 2012-08-09 Nippon Plast Co Ltd Curtain airbag device

Also Published As

Publication number Publication date
JP4327689B2 (en) 2009-09-09

Similar Documents

Publication Publication Date Title
JP5003631B2 (en) Side airbag device
JP4221018B2 (en) Head protection airbag device
JP6455483B2 (en) Crew protection device
JP4432932B2 (en) Vehicle knee airbag device and vehicle knee airbag deployment method
EP1950103B1 (en) Air belt device
JP5334270B2 (en) Curtain airbag device
JP2017226381A (en) Side airbag device
JP4861214B2 (en) Airbag device
WO2012066660A1 (en) Side airbag device for vehicle
WO2008018217A1 (en) Seat-mounted occupant restraint apparatus
WO2021100355A1 (en) Airbag device and vehicle seat
JP4923529B2 (en) Crew restraint system
JP2005231504A (en) Occupant crash protection device
JP4327689B2 (en) Vehicle occupant protection device
JP2011126413A (en) Side airbag device attached to seat
JP4313277B2 (en) Vehicle occupant protection device
JP2007137240A (en) Occupant restraint system
JP2006306324A (en) Airbag and airbag device
JP4276152B2 (en) Vehicle occupant protection device
JP2006088844A (en) Occupant protecting device for vehicle
JP5437345B2 (en) Crew restraint system
JP5104834B2 (en) Airbag device
JP4323398B2 (en) Vehicle occupant protection device
JP4377785B2 (en) Vehicle occupant protection device
JP2023068526A (en) Vehicle seat and method for folding side airbag

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20061128

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20080625

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20080701

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20080822

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20090303

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20090417

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: 20090609

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: 20090611

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

Free format text: PAYMENT UNTIL: 20120619

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Ref document number: 4327689

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: 20130619

Year of fee payment: 4

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

Free format text: PAYMENT UNTIL: 20130619

Year of fee payment: 4

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

Free format text: PAYMENT UNTIL: 20140619

Year of fee payment: 5

LAPS Cancellation because of no payment of annual fees