WO2011065385A1 - Airbag device - Google Patents

Airbag device Download PDF

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Publication number
WO2011065385A1
WO2011065385A1 PCT/JP2010/070945 JP2010070945W WO2011065385A1 WO 2011065385 A1 WO2011065385 A1 WO 2011065385A1 JP 2010070945 W JP2010070945 W JP 2010070945W WO 2011065385 A1 WO2011065385 A1 WO 2011065385A1
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WO
WIPO (PCT)
Prior art keywords
pocket
airbag device
airbag
main body
inflator
Prior art date
Application number
PCT/JP2010/070945
Other languages
French (fr)
Japanese (ja)
Inventor
亨 氏家
Original Assignee
オートリブ ディベロップメント エービー
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 オートリブ ディベロップメント エービー filed Critical オートリブ ディベロップメント エービー
Priority to CN201080054364.8A priority Critical patent/CN102639367B/en
Priority to JP2011543274A priority patent/JP5543491B2/en
Publication of WO2011065385A1 publication Critical patent/WO2011065385A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23—Inflatable members
    • B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
    • B60R21/23138—Inflatable members characterised by their shape, construction or spatial configuration specially adapted for side protection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23—Inflatable members
    • B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
    • B60R21/23138—Inflatable members characterised by their shape, construction or spatial configuration specially adapted for side protection
    • B60R2021/23146—Inflatable members characterised by their shape, construction or spatial configuration specially adapted for side protection seat mounted
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B60R21/207—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in vehicle seats

Definitions

  • the present invention relates to an airbag device that deploys an airbag to protect passengers in the vehicle when an emergency such as a vehicle collision occurs.
  • the airbag device is disposed inside a driver airbag device housed inside the steering wheel, a curtain airbag device disposed along the upper edge of the window frame, or an instrument panel (instrument panel).
  • a driver airbag device housed inside the steering wheel
  • a curtain airbag device disposed along the upper edge of the window frame
  • an instrument panel instrument panel
  • passenger airbag device a side airbag deployed from the side of the seat
  • knee airbag protecting an occupant's lower limb.
  • the side airbag device is embedded in the side surface of the seat, and is deployed in the traveling direction when a situation such as a vehicle collision occurs to protect the occupant seated on the seat from the side surface.
  • the bag body of the side airbag device is embedded in the side surface of the seat while being accommodated in a resin case when not in operation.
  • the present invention has been made in view of the above-described conventional problems, and an object thereof is to provide an airbag device that can be accommodated in a compact manner.
  • Another object is to provide an airbag device that contributes to cost reduction.
  • an object is to provide an airbag device capable of preventing gas leakage even when the airbag is damaged near the inflator.
  • an airbag device including an airbag that can be inflated and deployed and an inflator that supplies inflation gas to the airbag.
  • the pocket may be a fabric pocket provided around the inflator.
  • the pocket is provided in the vicinity of the edge on the fixed portion side opposite to the end portion in the deployment direction of the bag body portion, and at least the deployment direction end portion side of the bag body portion is open. Is preferred.
  • the pocket may be formed with a slit in part so that the pocket can be expanded and contracted when the bag body is deployed.
  • the pocket is provided with a tab for holding the stored bag body.
  • the inflator is provided with a fixing device that is fixed to a part of the vehicle, the fixing device has a structure that penetrates the airbag, and a structure in which a part of the tab is locked to the fixing device. It can be.
  • the pocket may be structured to be sewn over the entire circumference with respect to the bag body at a location corresponding to the inflator.
  • the airbag device of the present invention a case made of resin or the like can be omitted, and the airbag can be accommodated in a compact manner. As a result, various merits such as an increased degree of freedom in sheet design can be obtained. Furthermore, since it is a structure which only adds a pocket, the increase in cost can be suppressed to the minimum.
  • the smooth deployment of the airbag is not hindered by opening the end of the bag body in the deployment direction.
  • the bag body is sewn around the pocket at a location corresponding to the inflator of the bag main body, even if the bag main body is damaged by the pressure of the inflation gas, the presence of the pocket causes gas to enter the outside of the airbag. Can be prevented from leaking.
  • FIG. 1 is a cross-sectional view of a compartment of a vehicle equipped with a side airbag device, showing a state before deployment.
  • FIG. 2 is a perspective view showing a seat provided with a side airbag device, and shows a state when the airbag is deployed.
  • FIG. 3 is a plan view showing the structure (deployed state / unfolded state) of the side airbag device according to the first embodiment of the present invention, and shows a state seen from the outside of the seat.
  • FIG. 4 is a plan view showing the structure (deployed state / non-folded state) of the side airbag device according to the first embodiment, and shows a state seen from the inside of the seat.
  • FIG. 1 is a cross-sectional view of a compartment of a vehicle equipped with a side airbag device, showing a state before deployment.
  • FIG. 2 is a perspective view showing a seat provided with a side airbag device, and shows a state when the airbag is deployed.
  • FIG. 3 is
  • FIG. 5 is a cross-sectional view in the AA direction and the BB direction in FIG.
  • FIG. 6 is a plan view showing a storage state of the side airbag device according to the first embodiment.
  • FIG. 7 is a plan view showing a deployed state (actuated state) of the side airbag device according to the first embodiment.
  • FIG. 8 is a plan view showing the structure (deployed state / non-folded state) of the side airbag device according to the second embodiment of the present invention, and shows a state seen from the outside of the seat.
  • FIG. 9 is a plan view showing the structure (deployed state / non-folded state) of the side airbag device according to the second embodiment, and shows a state seen from the inside of the seat.
  • 10 is a cross-sectional view in the CC direction and the DD direction in FIG.
  • FIG. 1 is a cross-sectional view of a compartment portion of a vehicle 10 provided with a side airbag device, and shows a state before deployment.
  • FIG. 2 is a perspective view showing a seat provided with a side airbag device, and shows a state when the airbag is deployed.
  • FIG. 1 shows a state where the passenger 14 sits down on the seat 16 in the boarding space 12 inside the vehicle 10.
  • the side airbag device is mounted in the side surface of the seat 16 and is deployed by an inflation gas supplied from an inflator (not shown).
  • the boarding space 12 can be divided into a front area 11, a rear area 13, an upper area 15, and a lower area 17.
  • the airbag 18 is shown in a partially inflated state while being deployed from the vehicle seat 16.
  • the mounting studs 40a and 40b (see FIG. 4) of the inflator 26 are fixed to the frame of the seat 16 by fasteners (not shown).
  • the airbag 18 Prior to operation of the inflator 26, the airbag 18 is folded in a compact form around the inflator 26 in the seat back and covered with an exterior covering the foam (urethane) and the trim material of the seat 16.
  • FIG. 3 and 4 are plan views showing the structure (deployed state / non-folded state) of the side airbag device according to the first embodiment of the present invention, as seen from the outside of the seat 16 and seen from the inside of the seat 16. Each state is shown.
  • FIG. 5 is a cross-sectional view in the AA direction and the BB direction in FIG.
  • the side airbag device includes an airbag (18) that can be inflated and deployed, and an inflator (26) that supplies inflation gas to the airbag (18).
  • the airbag is formed into a bag shape, and is mainly provided with a bag main body portion 18 for protecting a passenger in the vehicle; a pocket provided in a part of the bag main body portion 18 and accommodating the bag main body portion 18 therein. 32.
  • the pocket 32 can be formed of the same fabric as the bag body 18.
  • the bag body portion 18 is formed into a bag shape by folding one piece of cloth into two or overlapping two pieces of cloth and sewing 31 the outer periphery.
  • a vent hole 30 is formed in a part of the bag body portion 18 to prevent the internal pressure of the airbag from rising more than necessary.
  • the pocket 32 literally has a structure like a trouser pocket.
  • the opening 33 is formed only on the front side (deployment direction) of the vehicle, and the other three sides are closed by sewing (31, 35, 42). .
  • the folded bag body 18 is accommodated so as to be pushed (inserted) into the pocket 32 from the opening 33, and the bag body 18 can be unfolded from the opening 33 during operation.
  • Slits 36a and 36b are formed in the vicinity of the upper and lower ends of the rectangular pocket 32, allowing the pocket 32 to expand when the bag body 18 is deployed, so as not to hinder the deployment of the bag body 18. It has become.
  • two string-like tabs 34a and 34b are connected to the pocket 32, and after the bag body 18 is accommodated in the pocket 32, the bag body 18 is held so as not to slide out. Yes.
  • the tabs 34a and 34b are formed by cutting out (cutting out) a portion of the pocket 32 and folding it back to the front side of the vehicle (see the upper diagram of FIG. 5). Further, holes 38a and 38b through which stud bolts 40a and 40b (see FIG. 4) of the inflator 26 pass are formed at the tips of the tabs 34a and 34b.
  • FIG. 6 and 7 are plan views showing the accommodation state and the deployed state (actuated state) of the side airbag device according to the first embodiment, respectively.
  • the bag body 18 is made small by, for example, folding the upper portion of the pocket 32 from the expanded state as shown in FIG. Fold and push into the pocket 32. Thereafter, the stud bolts 40a and 40b of the inflator 26 are passed through the holes 38a and 38b of the tabs 34a and 34b, and the bag body 18 is held. This state is shown in FIG.
  • the sensor provided in the vehicle catches the abnormal vibration, An ignition signal is sent to an inflator 26 (not shown) based on the signal. Inside the inflator 26 is provided a propellant that receives the ignition signal from the sensor and drives the inflator 26.
  • the bag main body 18 When the inflation gas flows into the bag main body 18 by the operation of the inflator 26, the bag main body 18 is expanded and deployed from the opening 33 of the pocket 32 toward the outside (front of the vehicle). At this time, the tabs 34 a and 34 b are broken near the opening 33 of the pocket 32 so as not to hinder the expansion of the bag body 18. This state is shown in FIG.
  • the pocket 32 comes into contact with the urethane portion even in a situation where the outer surface side (FIG. 3 side) of the airbag device faces (contacts) the urethane portion inside the seat 16, urethane is used. It is possible to avoid or suppress the situation where the expansion of the bag body 18 is hindered by friction with the portion. That is, the bag body 18 has already been inflated when it goes out of the opening 33 of the pocket 32, and can be quickly deployed as it is.
  • FIG. 8 and 9 are plan views showing the structure (deployed state / unfolded state) of the side airbag device according to the second embodiment of the present invention, as seen from the outside of the seat 16 and seen from the inside of the seat 16. Each state is shown. 10 is a cross-sectional view in the CC direction and the DD direction in FIG.
  • the side airbag device includes an airbag (118) that can be inflated and deployed, and an inflator 126 that supplies inflation gas to the airbag (118).
  • the airbag is formed into a bag shape, and is mainly provided with a bag main body 118 that protects an occupant in the vehicle; a pocket that is provided in a part of the bag main body 118 and accommodates the bag main body 118 therein. 132.
  • the pocket 132 can be molded from the same fabric as the bag body 118.
  • the bag body portion 118 is formed into a bag shape by folding one piece of cloth into two, or overlapping two pieces of cloth and sewing 131 the outer periphery.
  • a vent hole 130 is formed in a part of the bag main body 118 to prevent the internal pressure of the airbag from rising more than necessary.
  • the pocket 132 literally has a structure like a trouser pocket.
  • the opening 133 is formed only on the front side (deployment direction) of the vehicle, and the other three sides are closed by sewing (131, 135, 142). .
  • the folded bag body 118 is accommodated so as to be pushed (inserted) into the one pocket 32 from the opening 133, and the bag body 118 can be unfolded from the opening 133 during operation.
  • slits (36a, 36b) can be formed as in the first embodiment.
  • Two string-like tabs 134a and 134b are connected to the pocket 132 by sewing 135, and after the bag main body 118 is received in the pocket 132, the bag main body 118 is held so as not to slide out. ing.
  • the tabs 134a and 134b are formed as separate members.
  • holes 138a and 138b through which the stud bolts 140a and 140b (see FIG. 9) of the inflator 126 pass are formed at the tips of the tabs 134a and 134b.
  • a hole 142 for inserting the inflator 126 into the bag body 118 is formed inside the bag body 118.
  • a hole 141 through which the upper bolt 140a of the stud bolts 140a and 140b fixed to the inflator 126 passes is formed.
  • One of the features of the present embodiment is that, as shown in FIG. 10, sewing is performed over the entire circumference of the bag main body 118 at a location where the pocket 132 corresponds to the inflator 126 (131, 139, 142, 143). It is that. That is, the bag (fabric) is doubled at the place where the pressure of the inflator 126 is most greatly applied. For this reason, even when the bag main body 118 is damaged by the pressure of the inflation gas, the gas can be prevented from leaking to the outside of the airbag.
  • the operation and effects of this embodiment are basically the same as those of the first embodiment described above.
  • the bag body 118 is folded into a small size by, for example, folding the upper portion of the pocket 132 from the opened state, then winding it from the front side of the vehicle, folding it in a bellows shape, etc., and pushing it into the pocket 132. Thereafter, the stud bolts 140a and 140b of the inflator 126 are passed through the holes 138a and 138b of the tabs 134a and 134b to hold the bag body 118.
  • the sensor provided in the vehicle catches the abnormal vibration, An ignition signal is sent to an inflator 126 (not shown) based on the signal. Inside the inflator 126, a propellant that receives the ignition signal from the sensor and drives the inflator 126 is provided.
  • the bag main body 118 When the inflation gas flows into the bag main body 118 by the operation of the inflator 126, the bag main body 118 expands and deploys from the opening 133 of the pocket 132 toward the outside (front of the vehicle). At this time, the tabs 134a and 134b do not hinder the development of the bag body 118 by breaking the sewing portion 135.
  • the pocket 132 comes into contact with the urethane portion even in a situation where the outer surface side (FIG. 8 side) of the airbag device faces (contacts) the urethane portion inside the seat 16.
  • the situation where the expansion of the bag body 118 is hindered by friction with the urethane portion can be avoided or suppressed. That is, when the bag body 118 goes out of the opening 133 of the pocket 132, the bag body 118 has already been inflated and can be deployed as it is.
  • the present invention is not limited to the above-described embodiments, and various design changes and the like can be made without departing from the technical idea described in the claims. is there.
  • the side airbag device has been described as an example, but the present invention can be applied to other airbag devices such as a knee airbag device.
  • the pocket (32, 132) may have a shape other than a rectangle (triangle, trapezoid, ellipse, etc.).

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air Bags (AREA)

Abstract

Disclosed is an airbag device capable of being compactly housed, comprising an airbag capable of deploying by inflation, and an inflator that supplies inflating gas to the airbag, the airbag further comprising a bag main body portion that is formed in a bag shape and primarily protects a passenger inside a vehicle, and a pocket that is disposed upon a portion of the bag main body portion and houses the bag main body portion therewithin.

Description

エアバッグ装置Airbag device
　本発明は、車両衝突等の非常事態発生時にエアバッグを展開させて車両内の乗員を保護するエアバッグ装置に関する。 The present invention relates to an airbag device that deploys an airbag to protect passengers in the vehicle when an emergency such as a vehicle collision occurs.
　エアバッグ装置には、ステアリングホイール内部に収容される運転席用エアバッグ装置や、窓枠の上縁部に沿って配置されるカーテンエアバッグ装置や、インストルメントパネル（インパネ）の内部に配置される助手席用エアバッグ装置、シートの横から展開するサイドエアバッグ、乗員の下肢を保護するニーエアバッグなど種々のタイプがある。 The airbag device is disposed inside a driver airbag device housed inside the steering wheel, a curtain airbag device disposed along the upper edge of the window frame, or an instrument panel (instrument panel). There are various types such as a passenger airbag device, a side airbag deployed from the side of the seat, and a knee airbag protecting an occupant's lower limb.
　サイドエアバッグ装置は、シートの側面に埋め込まれ、車両衝突等の事態が発生した時に進行方向に向かって展開して当該シートに着座している乗員を側面から保護する。例えば、サイドエアバッグ装置のバッグ本体は、非作動時には樹脂ケースに収容された状態でシートの側面に埋め込まれる。 The side airbag device is embedded in the side surface of the seat, and is deployed in the traveling direction when a situation such as a vehicle collision occurs to protect the occupant seated on the seat from the side surface. For example, the bag body of the side airbag device is embedded in the side surface of the seat while being accommodated in a resin case when not in operation.
特開平１０－５３０８１号公報Japanese Patent Laid-Open No. 10-53081
　しかしながら、樹脂製のケースに収容する場合、全体として大きくなる他、ケース自体が柔軟性に乏しいため、設置スペースが大きくなってしまう。また、部品点数の増加によりコストの上昇を避けることができない。 However, when it is accommodated in a resin case, it becomes large as a whole, and the case itself is not flexible enough to increase the installation space. Further, an increase in cost cannot be avoided due to an increase in the number of parts.
　また、別の問題として、インフレータから出力されるガスの圧力によってエアバッグが破損した場合に、ガスが漏れ出てしまうという懸念があった。 As another problem, there is a concern that gas leaks when the airbag is damaged by the pressure of the gas output from the inflator.
　本発明は上記のような従来の課題に鑑みてなされたものであり、コンパクトに収容可能なエアバッグ装置を提供することを目的とする。 The present invention has been made in view of the above-described conventional problems, and an object thereof is to provide an airbag device that can be accommodated in a compact manner.
　また、コスト削減に寄与するエアバッグ装置を提供することを他の目的とする。 Another object is to provide an airbag device that contributes to cost reduction.
　更に、インフレータ付近でエアバッグが破損した場合にも、ガス漏れを防止可能なエアバッグ装置を提供することを目的とする。 Furthermore, an object is to provide an airbag device capable of preventing gas leakage even when the airbag is damaged near the inflator.
　上記課題を解決するために、膨張展開可能なエアバッグと、前記エアバッグに膨張ガスを供給するインフレータとを備えたエアバッグ装置において、前記エアバッグは、袋状に成形され、主に車両内の乗員を保護するバッグ本体部と；前記バッグ本体部の一部に設けられ、当該バッグ本体部をその中に収容するポケットとを備えたことを特徴とする。 In order to solve the above problems, an airbag device including an airbag that can be inflated and deployed and an inflator that supplies inflation gas to the airbag. A bag main body for protecting the passenger, and a pocket provided in a part of the bag main body for accommodating the bag main body therein.
　ここで、前記ポケットは、前記インフレータ周辺に設けられたファブリック製のポケットとすることができる。 Here, the pocket may be a fabric pocket provided around the inflator.
　また、前記ポケットは、前記バッグ本体部の展開方向端部とは逆の固定部側の縁部付近に設けられ、少なくとも、前記バッグ本体部の展開方向端部側が開放されている構造とすることが好ましい。 Further, the pocket is provided in the vicinity of the edge on the fixed portion side opposite to the end portion in the deployment direction of the bag body portion, and at least the deployment direction end portion side of the bag body portion is open. Is preferred.
　また、前記ポケットは、前記バッグ本体部の展開時に伸縮可能にすべく、一部にスリットを形成することができる。 In addition, the pocket may be formed with a slit in part so that the pocket can be expanded and contracted when the bag body is deployed.
　また、前記ポケットには、収容された前記バッグ本体部を保持するタブが設けられていることが好ましい。更に、前記インフレータには車両の一部に対して固定する固定具が設けられ、当該固定具は前記エアバッグを貫通する構造であり、前記タブの一部が前記固定具に係止される構造とすることができる。 Further, it is preferable that the pocket is provided with a tab for holding the stored bag body. Furthermore, the inflator is provided with a fixing device that is fixed to a part of the vehicle, the fixing device has a structure that penetrates the airbag, and a structure in which a part of the tab is locked to the fixing device. It can be.
　更に、前記ポケットは、前記インフレータに対応する箇所において、前記バッグ本体部に対して全周に渡って縫製されている構造とすることができる。 Furthermore, the pocket may be structured to be sewn over the entire circumference with respect to the bag body at a location corresponding to the inflator.
　本発明のエアバッグ装置によれば、樹脂製等のケースを省略することができ、エアバッグをコンパクトに収容可能となる。その結果、シートの設計において自由度が増す等の種々のメリットが得られる。更に、ポケットを付加するだけの構造であるため、コストの増大を最小限に抑えることができる。 According to the airbag device of the present invention, a case made of resin or the like can be omitted, and the airbag can be accommodated in a compact manner. As a result, various merits such as an increased degree of freedom in sheet design can be obtained. Furthermore, since it is a structure which only adds a pocket, the increase in cost can be suppressed to the minimum.
　また、ポケットのバッグ本体部の展開方向端部側を開放することにより、エアバッグのスムーズ展開を阻害することがない。 In addition, the smooth deployment of the airbag is not hindered by opening the end of the bag body in the deployment direction.
　また、バッグ本体部のインフレータに対応する箇所において、ポケットの全周を縫製する構造とすれば、膨張ガスの圧力によってバッグ本体部が破損した場合にも、ポケットの存在によってエアバッグの外部にガスが漏れることを防ぐことができる。
  In addition, if the bag body is sewn around the pocket at a location corresponding to the inflator of the bag main body, even if the bag main body is damaged by the pressure of the inflation gas, the presence of the pocket causes gas to enter the outside of the airbag. Can be prevented from leaking.
図１は、サイドエアバッグ装置を備えた車両の車室部分の断面図であり、展開前の状態を示す。FIG. 1 is a cross-sectional view of a compartment of a vehicle equipped with a side airbag device, showing a state before deployment. 図２は、サイドエアバッグ装置を備えたシートを示す斜視図であり、エアバッグ展開時の状態を示す。FIG. 2 is a perspective view showing a seat provided with a side airbag device, and shows a state when the airbag is deployed. 図３は、本発明の第１実施例に係るサイドエアバッグ装置の構造（展開状態／非折り畳み状態）を示す平面図であり、シート外側から見た様子を示す。FIG. 3 is a plan view showing the structure (deployed state / unfolded state) of the side airbag device according to the first embodiment of the present invention, and shows a state seen from the outside of the seat. 図４は、第１実施例に係るサイドエアバッグ装置の構造（展開状態／非折り畳み状態）を示す平面図であり、シート内側から見た様子を示す。FIG. 4 is a plan view showing the structure (deployed state / non-folded state) of the side airbag device according to the first embodiment, and shows a state seen from the inside of the seat. 図５は、図３のＡ－Ａ方向及びＢ－Ｂ方向の断面図である。FIG. 5 is a cross-sectional view in the AA direction and the BB direction in FIG. 図６は、第１実施例に係るサイドエアバッグ装置の収容状態を示す平面図である。FIG. 6 is a plan view showing a storage state of the side airbag device according to the first embodiment. 図７は、第１実施例に係るサイドエアバッグ装置の展開状態（作動状態）を示す平面図である。FIG. 7 is a plan view showing a deployed state (actuated state) of the side airbag device according to the first embodiment. 図８は、本発明の第２実施例に係るサイドエアバッグ装置の構造（展開状態／非折り畳み状態）を示す平面図であり、シート外側から見た様子を示す。FIG. 8 is a plan view showing the structure (deployed state / non-folded state) of the side airbag device according to the second embodiment of the present invention, and shows a state seen from the outside of the seat. 図９は、第２実施例に係るサイドエアバッグ装置の構造（展開状態／非折り畳み状態）を示す平面図であり、シート内側から見た様子を示す。FIG. 9 is a plan view showing the structure (deployed state / non-folded state) of the side airbag device according to the second embodiment, and shows a state seen from the inside of the seat. 図１０は、図８のＣ－Ｃ方向及びＤ－Ｄ方向の断面図である。10 is a cross-sectional view in the CC direction and the DD direction in FIG.
　以下、図面を参照して、本発明の実施の形態について説明する。図１は、サイドエアバッグ装置を備えた車両１０の車室部分の断面図であり、展開前の状態を示す。図２は、サイドエアバッグ装置を備えたシートを示す斜視図であり、エアバッグ展開時の状態を示す。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a cross-sectional view of a compartment portion of a vehicle 10 provided with a side airbag device, and shows a state before deployment. FIG. 2 is a perspective view showing a seat provided with a side airbag device, and shows a state when the airbag is deployed.
　図１は、車両１０内部の搭乗空間１２において、搭乗者１４がシート１６に腰を下ろした様子を示している。サイドエアバッグ装置は、シート１６の側面内に搭載され、インフレータ（図示せず）から供給される膨張ガスによって展開する。搭乗空間１２は、前方領域１１と、後方領域１３と、上方領域１５と、下方領域１７とに区別することができる。 FIG. 1 shows a state where the passenger 14 sits down on the seat 16 in the boarding space 12 inside the vehicle 10. The side airbag device is mounted in the side surface of the seat 16 and is deployed by an inflation gas supplied from an inflator (not shown). The boarding space 12 can be divided into a front area 11, a rear area 13, an upper area 15, and a lower area 17.
　図２において、エアバッグ１８は、車両シート１６から展開しながら部分的に膨張された状態で示されている。インフレータ２６の装着スタッド４０ａ、４０ｂ（図４参照）が、留め具（図示せず）によってシート１６のフレームに固定される。インフレータ２６の作動前、エアバッグ１８はシートバック内においてインフレータ２６の周囲でコンパクトな形態で折り畳まれ、発泡体（ウレタン）およびシート１６のトリム材料を覆う外装によって覆われる。 2, the airbag 18 is shown in a partially inflated state while being deployed from the vehicle seat 16. The mounting studs 40a and 40b (see FIG. 4) of the inflator 26 are fixed to the frame of the seat 16 by fasteners (not shown). Prior to operation of the inflator 26, the airbag 18 is folded in a compact form around the inflator 26 in the seat back and covered with an exterior covering the foam (urethane) and the trim material of the seat 16.
　図３及び図４は、本発明の第１実施例に係るサイドエアバッグ装置の構造（展開状態／非折り畳み状態）を示す平面図であり、シート１６外側から見た様子及びシート１６内側から見た様子を各々示す。図５は、図３のＡ－Ａ方向及びＢ－Ｂ方向の断面図である。 3 and 4 are plan views showing the structure (deployed state / non-folded state) of the side airbag device according to the first embodiment of the present invention, as seen from the outside of the seat 16 and seen from the inside of the seat 16. Each state is shown. FIG. 5 is a cross-sectional view in the AA direction and the BB direction in FIG.
　本実施例に係るサイドエアバッグ装置は、膨張展開可能なエアバッグ（１８）と、エアバッグ（１８）に膨張ガスを供給するインフレータ２６とを備えている。そして、エアバッグは、袋状に成形され、主に車両内の乗員を保護するバッグ本体部１８と；バッグ本体部１８の一部に設けられ、当該バッグ本体部１８をその中に収容するポケット３２とを備えている。ポケット３２は、バッグ本体１８と同じファブリックで成形することができる。 The side airbag device according to the present embodiment includes an airbag (18) that can be inflated and deployed, and an inflator (26) that supplies inflation gas to the airbag (18). The airbag is formed into a bag shape, and is mainly provided with a bag main body portion 18 for protecting a passenger in the vehicle; a pocket provided in a part of the bag main body portion 18 and accommodating the bag main body portion 18 therein. 32. The pocket 32 can be formed of the same fabric as the bag body 18.
　バッグ本体部１８は、１枚の布を２つ折りにし、あるいは２枚の布を重ね合わせて、外周を縫製３１することによって袋状に成形される。バッグ本体部１８の一部にはベントホール３０が形成され、エアバッグの内圧が必要以上に上昇するのを防止している。 The bag body portion 18 is formed into a bag shape by folding one piece of cloth into two or overlapping two pieces of cloth and sewing 31 the outer periphery. A vent hole 30 is formed in a part of the bag body portion 18 to prevent the internal pressure of the airbag from rising more than necessary.
　ポケット３２は、文字通りズボンのポケットのような構造であり、車両の前方側（展開方向）のみに開口部３３が形成され、他の３辺は縫製（３１，３５，４２）によって閉じられている。そして、折り畳んだバッグ本体部１８を当該開口部３３からポケット３２内部に押し込む（差し込む）ように収容すると共に、作動時には当該開口部３３からバッグ本体部１８が展開可能となっている。 The pocket 32 literally has a structure like a trouser pocket. The opening 33 is formed only on the front side (deployment direction) of the vehicle, and the other three sides are closed by sewing (31, 35, 42). . The folded bag body 18 is accommodated so as to be pushed (inserted) into the pocket 32 from the opening 33, and the bag body 18 can be unfolded from the opening 33 during operation.
　矩形のポケット３２の上下の端部付近にはスリット３６ａ、３６ｂが形成されており、バッグ本体１８が展開する際にポケット３２が伸長することを許容し、バッグ本体１８の展開を阻害しないようになっている。 Slits 36a and 36b are formed in the vicinity of the upper and lower ends of the rectangular pocket 32, allowing the pocket 32 to expand when the bag body 18 is deployed, so as not to hinder the deployment of the bag body 18. It has become.
　また、ポケット３２には２本の紐状のタブ３４ａ、３４ｂが連結されており、ポケット３２内部にバッグ本体１８を収容した後に、当該バッグ本体１８が滑り出ないように保持するようになっている。タブ３４ａ、３４ｂは、ポケット３２の一部を切り取って（くり抜いて）、車両前方側に折り返すことによって成形される（図５上図参照）。また、タブ３４ａ、３４ｂの先端にはインフレータ２６のスタッドボルト４０ａ、４０ｂ（図４参照）が貫通する孔３８ａ、３８ｂが形成されている。 Further, two string- like tabs 34a and 34b are connected to the pocket 32, and after the bag body 18 is accommodated in the pocket 32, the bag body 18 is held so as not to slide out. Yes. The tabs 34a and 34b are formed by cutting out (cutting out) a portion of the pocket 32 and folding it back to the front side of the vehicle (see the upper diagram of FIG. 5). Further, holes 38a and 38b through which stud bolts 40a and 40b (see FIG. 4) of the inflator 26 pass are formed at the tips of the tabs 34a and 34b.
　図６及び図７は、各々、第１実施例に係るサイドエアバッグ装置の収容状態及び、展開状態（作動状態）を示す平面図である。バッグ本体１８は、例えば、図３のように広げた状態から、ポケット３２の上部を折り曲げ、その後、車両前方側からポケット３２側に向かって巻き取る、あるいは蛇腹状に折り畳む等の方法で、小さく折り畳み、ポケット３２の内部に押し込む。その後、インフレータ２６のスタッドボルト４０ａ、４０ｂをタブ３４ａ、３４ｂの孔３８ａ、３８ｂに通して、バッグ本体１８を保持する。この状態を図６に示す。 6 and 7 are plan views showing the accommodation state and the deployed state (actuated state) of the side airbag device according to the first embodiment, respectively. The bag body 18 is made small by, for example, folding the upper portion of the pocket 32 from the expanded state as shown in FIG. Fold and push into the pocket 32. Thereafter, the stud bolts 40a and 40b of the inflator 26 are passed through the holes 38a and 38b of the tabs 34a and 34b, and the bag body 18 is held. This state is shown in FIG.
　本実施例に係るサイドエアバッグ装置を備えた車両の走行中に、ロールオーバ、側面衝突、横転等の非常事態が発生すると、車両に備えられたセンサがその異常な振動をキャッチして、その信号を基に発火信号を図示せぬインフレータ２６に送る。インフレータ２６内部には、センサからの発火信号を受けてインフレータ２６を駆動させるプロペラントが備えられている。 When an emergency such as rollover, side collision, or rollover occurs while the vehicle equipped with the side airbag device according to this embodiment is running, the sensor provided in the vehicle catches the abnormal vibration, An ignition signal is sent to an inflator 26 (not shown) based on the signal. Inside the inflator 26 is provided a propellant that receives the ignition signal from the sensor and drives the inflator 26.
　インフレータ２６の作動によって、バッグ本体部１８に膨張ガスが流れ込むと、ポケット３２の開口部３３から外側（車両前方）に向かってバッグ本体１８が膨張・展開する。この時、タブ３４ａ、３４ｂはポケット３２の開口部３３付近で破断して、バッグ本体１８の展開を妨げないようになっている。この状態を図７に示す。 When the inflation gas flows into the bag main body 18 by the operation of the inflator 26, the bag main body 18 is expanded and deployed from the opening 33 of the pocket 32 toward the outside (front of the vehicle). At this time, the tabs 34 a and 34 b are broken near the opening 33 of the pocket 32 so as not to hinder the expansion of the bag body 18. This state is shown in FIG.
　本実施例の場合、エアバッグ装置の外面側（図３側）がシート１６内部のウレタン部分に対向（接触）するような状況においても、ポケット３２がウレタン部分に接触することになるため、ウレタン部分との摩擦によってバッグ本体１８の展開が阻害されるという事態を回避又は抑制することができる。すなわち、バッグ本体１８はポケット３２の開口部３３から外に出る時には既に膨張が始まっており、そのままの勢いで速やかに展開することができる。 In the case of the present embodiment, since the pocket 32 comes into contact with the urethane portion even in a situation where the outer surface side (FIG. 3 side) of the airbag device faces (contacts) the urethane portion inside the seat 16, urethane is used. It is possible to avoid or suppress the situation where the expansion of the bag body 18 is hindered by friction with the portion. That is, the bag body 18 has already been inflated when it goes out of the opening 33 of the pocket 32, and can be quickly deployed as it is.
　図８及び図９は、本発明の第２実施例に係るサイドエアバッグ装置の構造（展開状態／非折り畳み状態）を示す平面図であり、シート１６外側から見た様子及びシート１６内側から見た様子を各々示す。図１０は、図８のＣ－Ｃ方向及びＤ－Ｄ方向の断面図である。 8 and 9 are plan views showing the structure (deployed state / unfolded state) of the side airbag device according to the second embodiment of the present invention, as seen from the outside of the seat 16 and seen from the inside of the seat 16. Each state is shown. 10 is a cross-sectional view in the CC direction and the DD direction in FIG.
　本実施例に係るサイドエアバッグ装置は、膨張展開可能なエアバッグ（１１８）と、エアバッグ（１１８）に膨張ガスを供給するインフレータ１２６とを備えている。そして、エアバッグは、袋状に成形され、主に車両内の乗員を保護するバッグ本体部１１８と；バッグ本体部１１８の一部に設けられ、当該バッグ本体部１１８をその中に収容するポケット１３２とを備えている。ポケット１３２は、バッグ本体１１８と同じファブリックで成形することができる。 The side airbag device according to the present embodiment includes an airbag (118) that can be inflated and deployed, and an inflator 126 that supplies inflation gas to the airbag (118). The airbag is formed into a bag shape, and is mainly provided with a bag main body 118 that protects an occupant in the vehicle; a pocket that is provided in a part of the bag main body 118 and accommodates the bag main body 118 therein. 132. The pocket 132 can be molded from the same fabric as the bag body 118.
　バッグ本体部１１８は、１枚の布を２つ折りにし、あるいは２枚の布を重ね合わせて、外周を縫製１３１することによって袋状に成形される。バッグ本体部１１８の一部にはベントホール１３０が形成され、エアバッグの内圧が必要以上に上昇するのを防止している。 The bag body portion 118 is formed into a bag shape by folding one piece of cloth into two, or overlapping two pieces of cloth and sewing 131 the outer periphery. A vent hole 130 is formed in a part of the bag main body 118 to prevent the internal pressure of the airbag from rising more than necessary.
　ポケット１３２は、文字通りズボンのポケットのような構造であり、車両の前方側（展開方向）のみに開口部１３３が形成され、他の３辺は縫製（１３１，１３５，１４２）によって閉じられている。そして、折り畳んだバッグ本体部１１８を当該開口部１３３から１ポケット３２内部に押し込む（差し込む）ように収容すると共に、作動時には当該開口部１３３からバッグ本体部１１８が展開可能となっている。 The pocket 132 literally has a structure like a trouser pocket. The opening 133 is formed only on the front side (deployment direction) of the vehicle, and the other three sides are closed by sewing (131, 135, 142). . The folded bag body 118 is accommodated so as to be pushed (inserted) into the one pocket 32 from the opening 133, and the bag body 118 can be unfolded from the opening 133 during operation.
　矩形のポケット１３２の上下の端部付近には、第１実施例と同様にスリット（３６ａ、３６ｂ）を形成することができる。ポケット１３２には２本の紐状のタブ１３４ａ、１３４ｂが縫製１３５によって連結されており、ポケット１３２内部にバッグ本体１１８を収容した後に、当該バッグ本体１１８が滑り出ないように保持するようになっている。タブ１３４ａ、１３４ｂは、第１実施例と異なり、別部材として成形される。また、タブ１３４ａ、１３４ｂの先端にはインフレータ１２６のスタッドボルト１４０ａ、１４０ｂ（図９参照）が貫通する孔１３８ａ、１３８ｂが形成されている。 In the vicinity of the upper and lower ends of the rectangular pocket 132, slits (36a, 36b) can be formed as in the first embodiment. Two string- like tabs 134a and 134b are connected to the pocket 132 by sewing 135, and after the bag main body 118 is received in the pocket 132, the bag main body 118 is held so as not to slide out. ing. Unlike the first embodiment, the tabs 134a and 134b are formed as separate members. Further, holes 138a and 138b through which the stud bolts 140a and 140b (see FIG. 9) of the inflator 126 pass are formed at the tips of the tabs 134a and 134b.
　図９に示すように、バッグ本体１１８の内側には、インフレータ１２６をバッグ本体１１８内部に挿入するための孔１４２が形成されている。また、インフレータ１２６に固定されたスタッドボルト１４０ａ、１４０ｂのうち上部のボルト１４０ａが貫通する孔１４１が形成されている。 As shown in FIG. 9, a hole 142 for inserting the inflator 126 into the bag body 118 is formed inside the bag body 118. In addition, a hole 141 through which the upper bolt 140a of the stud bolts 140a and 140b fixed to the inflator 126 passes is formed.
　本実施例の特徴の１つは、図１０に示すように、ポケット１３２がインフレータ１２６に対応する箇所において、バッグ本体部１１８に対して全周に渡って縫製（１３１，１３９，１４２，１４３）されていることである。すなわち、インフレータ１２６の圧力が最も大きく加わる箇所においてバッグ（ファブリック）が二重になっている。このため、膨張ガスの圧力によってバッグ本体部１１８が破損した場合にも、エアバッグの外部にガスが漏れることを防ぐことができる。 One of the features of the present embodiment is that, as shown in FIG. 10, sewing is performed over the entire circumference of the bag main body 118 at a location where the pocket 132 corresponds to the inflator 126 (131, 139, 142, 143). It is that. That is, the bag (fabric) is doubled at the place where the pressure of the inflator 126 is most greatly applied. For this reason, even when the bag main body 118 is damaged by the pressure of the inflation gas, the gas can be prevented from leaking to the outside of the airbag.
　本実施例における動作及び作用効果は、基本的に上述した第１実施例と同様である。バッグ本体１１８は、例えば、広げた状態から、ポケット１３２の上部を折り曲げ、その後、車両前方側から巻き取る、蛇腹状に折り畳む等の方法で、小さく折り畳み、ポケット１３２の内部に押し込む。その後、インフレータ１２６のスタッドボルト１４０ａ、１４０ｂをタブ１３４ａ、１３４ｂの孔１３８ａ、１３８ｂに通して、バッグ本体１１８を保持する。 The operation and effects of this embodiment are basically the same as those of the first embodiment described above. The bag body 118 is folded into a small size by, for example, folding the upper portion of the pocket 132 from the opened state, then winding it from the front side of the vehicle, folding it in a bellows shape, etc., and pushing it into the pocket 132. Thereafter, the stud bolts 140a and 140b of the inflator 126 are passed through the holes 138a and 138b of the tabs 134a and 134b to hold the bag body 118.
　本実施例に係るサイドエアバッグ装置を備えた車両の走行中に、ロールオーバ、側面衝突、横転等の非常事態が発生すると、車両に備えられたセンサがその異常な振動をキャッチして、その信号を基に発火信号を図示せぬインフレータ１２６に送る。インフレータ１２６内部には、センサからの発火信号を受けてインフレータ１２６を駆動させるプロペラントが備えられている。 When an emergency such as rollover, side collision, or rollover occurs while the vehicle equipped with the side airbag device according to this embodiment is running, the sensor provided in the vehicle catches the abnormal vibration, An ignition signal is sent to an inflator 126 (not shown) based on the signal. Inside the inflator 126, a propellant that receives the ignition signal from the sensor and drives the inflator 126 is provided.
　インフレータ１２６の作動によって、バッグ本体部１１８に膨張ガスが流れ込むと、ポケット１３２の開口部１３３から外側（車両前方）に向かってバッグ本体１１８が膨張・展開する。この時、タブ１３４ａ、１３４ｂは縫製部分１３５が破断して、バッグ本体１１８の展開を妨げないようになっている。 When the inflation gas flows into the bag main body 118 by the operation of the inflator 126, the bag main body 118 expands and deploys from the opening 133 of the pocket 132 toward the outside (front of the vehicle). At this time, the tabs 134a and 134b do not hinder the development of the bag body 118 by breaking the sewing portion 135.
　本実施例の場合にも、エアバッグ装置の外面側（図８側）がシート１６内部のウレタン部分に対向（接触）するような状況においても、ポケット１３２がウレタン部分に接触することになるため、ウレタン部分との摩擦によってバッグ本体１１８の展開が阻害されるという事態を回避又は抑制することができる。すなわち、バッグ本体１１８はポケット１３２の開口部１３３から外に出る時には既に膨張が始まっており、そのままの勢いで展開することができる。 Also in the case of the present embodiment, the pocket 132 comes into contact with the urethane portion even in a situation where the outer surface side (FIG. 8 side) of the airbag device faces (contacts) the urethane portion inside the seat 16. The situation where the expansion of the bag body 118 is hindered by friction with the urethane portion can be avoided or suppressed. That is, when the bag body 118 goes out of the opening 133 of the pocket 132, the bag body 118 has already been inflated and can be deployed as it is.
　以上、本発明の実施例について説明したが、本発明は上記実施例に限定されるものではなく、特許請求の範囲に記載された技術的思想を逸脱しない範囲で種々の設計変更等が可能である。上記実施例においては、サイドエアバッグ装置を例に採って説明したが、その他にもニーエアバッグ装置等の他のエアバッグ装置にも適用可能である。また、ポケット（３２，１３２）の形状は矩形以外の形状（三角形、台形、楕円形等）を採用することもできる。 Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various design changes and the like can be made without departing from the technical idea described in the claims. is there. In the above embodiment, the side airbag device has been described as an example, but the present invention can be applied to other airbag devices such as a knee airbag device. Further, the pocket (32, 132) may have a shape other than a rectangle (triangle, trapezoid, ellipse, etc.).
１６：シート
１８、１１８：バッグ本体部
２６、１２６：インフレータ
３２、１３２：ポケット
３３、１３３：開口部
３４ａ，３４ｂ，１３４ａ，１３４ｂ：タブ
３６ａ、３６ｂ：スリット 16: Seat 18, 118: Bag body 26, 126: Inflator 32, 132: Pocket 33, 133: Openings 34a, 34b, 134a, 134b: Tabs 36a, 36b: Slit

Claims (7)

  1. 　膨張展開可能なエアバッグと、前記エアバッグに膨張ガスを供給するインフレータとを備えたエアバッグ装置において、
    　前記エアバッグは、袋状に成形され、主に車両内の乗員を保護するバッグ本体部と；
    　前記バッグ本体部の一部に設けられ、当該バッグ本体部をその中に収容するポケットとを備えたことを特徴とするエアバッグ装置。     In an airbag device comprising an inflatable airbag and an inflator that supplies inflation gas to the airbag,
    The airbag is formed into a bag shape, and a bag main body portion mainly protecting passengers in the vehicle;
    An airbag device comprising a pocket provided in a part of the bag main body portion and accommodating the bag main body portion therein.
  2. 　前記ポケットは、前記インフレータ周辺に設けられたファブリック製のポケットであることを特徴とする請求項１に記載のエアバッグ装置。 The airbag device according to claim 1, wherein the pocket is a fabric pocket provided around the inflator.
  3. 　前記ポケットは、前記バッグ本体部の展開方向端部とは逆の固定部側の縁部付近に設けられ、
    　少なくとも、前記バッグ本体部の展開方向端部側が開放されていることを特徴とする請求項１又は２に記載のエアバッグ装置。     The pocket is provided in the vicinity of the edge portion on the fixed portion side opposite to the end portion in the deployment direction of the bag body portion,
    The airbag device according to claim 1 or 2, wherein at least a deployment direction end portion side of the bag main body portion is opened.
  4. 　前記ポケットは、前記バッグ本体部の展開時に伸縮可能にすべく、一部にスリットが形成されていることを特徴とする請求項１乃至３の何れかに記載のエアバッグ装置。 The airbag device according to any one of claims 1 to 3, wherein a slit is formed in a part of the pocket so that the pocket can be expanded and contracted when the bag main body is deployed.
  5. 　前記ポケットには、収容された前記バッグ本体部を保持するタブが設けられていることを特徴とする請求項１乃至４の何れかに記載のエアバッグ装置。 The airbag device according to any one of claims 1 to 4, wherein the pocket is provided with a tab for holding the bag main body portion accommodated therein.
  6. 　前記インフレータには車両の一部に対して固定する固定具が設けられ、当該固定具は前記エアバッグを貫通する構造であり、
    　前記タブの一部が前記固定具に係止されることを特徴とする請求項５に記載のエアバッグ装置。     The inflator is provided with a fixture for fixing a part of the vehicle, and the fixture has a structure that penetrates the airbag.
    The airbag device according to claim 5, wherein a part of the tab is locked to the fixture.
  7. 　前記ポケットは、前記インフレータに対応する箇所において、前記バッグ本体部に対して全周に渡って縫製されていることを特徴とする請求項１乃至６の何れかに記載のエアバッグ装置。 The airbag device according to any one of claims 1 to 6, wherein the pocket is sewn over the entire circumference with respect to the bag body at a location corresponding to the inflator.
PCT/JP2010/070945 2009-11-30 2010-11-24 Airbag device WO2011065385A1 (en)

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