JP6051908B2

JP6051908B2 - Airbag device

Info

Publication number: JP6051908B2
Application number: JP2013023546A
Authority: JP
Inventors: 山中　孝之; 孝之山中; 泰士増田; 加藤　弘; 弘加藤; 広明山田; 永田　篤; 篤永田
Original assignee: Toyoda Gosei Co Ltd
Current assignee: Toyoda Gosei Co Ltd
Priority date: 2013-02-08
Filing date: 2013-02-08
Publication date: 2016-12-27
Anticipated expiration: 2033-02-08
Also published as: JP2014151782A

Description

本発明は、複数の座席を並設させて構成される車両に搭載されて、座席の並設方向の一方側からの衝撃力の作用時に、衝撃力作用側から遠い離隔側座席に着座した離隔側乗員を保護可能なエアバッグ装置に関する。 The present invention is mounted on a vehicle configured by arranging a plurality of seats side by side and seated on a remote side seat far from the impact force acting side when an impact force is applied from one side of the seats in the juxtaposed direction. The present invention relates to an airbag device capable of protecting a side occupant.

従来、離隔側乗員を保護するためのエアバッグ装置としては、離隔側座席の背もたれ部内に収納させたエアバッグを有し、このエアバッグを、離隔側乗員の衝撃力作用側を覆うように膨張させる構成のものがあった。また、この従来のエアバッグ装置では、膨張完了時のエアバッグにおける衝撃力作用側を、支持部材によって支持させ、かつ、この突出時の支持部材の衝撃力作用側をカバー部材によって覆う構成であった（例えば、特許文献１参照）。 Conventionally, as an airbag device for protecting a separated occupant, the airbag device has an airbag housed in a backrest portion of the separated seat, and the airbag is inflated so as to cover the impact force acting side of the separated occupant. There was a configuration to make it. Further, this conventional airbag apparatus is configured to support the impact force acting side of the airbag when the inflation is completed by the support member, and to cover the impact force acting side of the support member at the time of the protrusion with the cover member. (For example, see Patent Document 1).

特開２００９−２８００２３公報JP 2009-280023 A

しかし、従来のエアバッグ装置では、支持部材は、離隔側座席ではなく、衝撃力作用側となる近接側座席の背もたれ部に収納され、エアバッグとは別の駆動源を用いて、エアバッグの衝撃力作用側を支持するように突出する構成とされていることから、近接側乗員と干渉すれば、膨張するエアバッグの離隔側を円滑に支持できる範囲に配置されず、離隔側乗員を的確に保護できない場合があった。また、従来のエアバッグ装置では、支持部材の衝撃力作用側を覆うカバー部材も、近接側座席の背もたれ部に折り畳まれて収納されるエアバッグから、構成されていることから、離隔側乗員を保護するエアバッグと、エアバッグを支持するための支持部材と、支持部材の衝撃力作用側を覆うカバー部材と、に、それぞれ別の駆動源が必要であり、構成が複雑となっていた。 However, in the conventional airbag device, the support member is housed in the backrest portion of the near side seat which is the impact force acting side, not in the separated side seat, and using a drive source different from the airbag, Since it is configured to protrude so as to support the impact force acting side, if it interferes with the near side occupant, it is not arranged in a range that can smoothly support the separated side of the inflating airbag, and the separated side occupant is accurately In some cases, it could not be protected. Further, in the conventional airbag device, the cover member that covers the impact force acting side of the support member is also composed of an airbag that is folded and stored in the backrest portion of the close side seat. Separate drive sources are required for the protective airbag, the support member for supporting the airbag, and the cover member that covers the impact force acting side of the support member, and the configuration is complicated.

本発明は、上述の課題を解決するものであり、簡便な構成で、離隔側乗員を的確に保護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 solves the above-described problems, and an object of the present invention is to provide an airbag device that can accurately protect a remote occupant with a simple configuration.

本発明に係るエアバッグ装置は、複数の座席を並設させて構成される車両に搭載されて、座席の並設方向の一方側からの衝撃力の作用時に、衝撃力作用側から遠い離隔側座席に着座した離隔側乗員を保護可能な構成のエアバッグ装置であって、
離隔側座席の背もたれ部内に折り畳まれて収納されるとともに、内部に膨張用ガスを流入させて離隔側乗員の衝撃力作用側を覆うように展開膨張するエアバッグと、
背もたれ部内に収納されるとともに、展開膨張するエアバッグを駆動源として突出し、膨張完了時のエアバッグにおける衝撃力作用側を支持可能な支持部材と、
移動開始時から移動完了時までの支持部材の衝撃力作用側を覆い可能として、エアバッグに配設される可撓性を有したカバー部材と、
を備えていることを特徴とする。 An airbag device according to the present invention is mounted on a vehicle configured by arranging a plurality of seats side by side, and when an impact force is applied from one side of the seats in the side-by-side direction, the remote side is far from the impact force application side. An airbag device configured to protect a remote occupant seated in a seat,
An airbag that is folded and housed in the backrest portion of the separation-side seat and that is inflated so as to cover the impact force acting side of the separation-side occupant by allowing the inflation gas to flow inside.
A support member that is housed in the backrest portion, protrudes from the airbag that is deployed and inflated as a drive source, and can support the impact force acting side in the airbag when the inflation is completed;
A flexible cover member disposed on the airbag, capable of covering the impact force acting side of the support member from the start of movement to the completion of movement;
It is characterized by having.

本発明のエアバッグ装置では、エアバッグの衝撃力作用側を支持する支持部材が、離隔側座席の背もたれ部内に収納されて、展開膨張するエアバッグを駆動源として、エアバッグの展開膨張に伴って突出する構成とされ、また、この支持部材の衝撃力作用側を覆うカバー部材も、エアバッグの展開膨張により突出する構成である。そのため、エアバッグの展開膨張時に、同時に支持部材が突出し、また、カバー部材も、支持部材の衝撃力作用側を覆うように配置されることから、構成部品の増加を抑制して、簡便な構成とすることができる。さらに、本発明のエアバッグ装置では、カバー部材が、支持部材の衝撃力作用側を、移動開始時から移動完了時まで覆う構成とされていることから、仮に、支持部材の衝撃力作用側の近接側座席に近接側乗員が着座し、この近接側乗員が接近していても、近接側乗員との干渉を抑制して、支持部材を円滑に所定位置まで突出させることができ、膨張を完了させたエアバッグの衝撃力作用側を迅速に支持させることができる。 In the airbag apparatus according to the present invention, the support member that supports the impact force acting side of the airbag is housed in the backrest portion of the separation-side seat, and the airbag that is deployed and inflated is used as a drive source along with the deployment and inflation of the airbag. The cover member that covers the impact force acting side of the support member is also configured to protrude due to the expansion and inflation of the airbag. Therefore, when the airbag is deployed and inflated, the support member protrudes at the same time, and the cover member is also arranged so as to cover the impact force acting side of the support member. It can be. Furthermore, in the airbag device of the present invention, the cover member is configured to cover the impact force acting side of the support member from the start of movement to the completion of movement. Even if a close side occupant sits on the close side seat and the close side occupant is approaching, the interference with the close side occupant can be suppressed, and the support member can be smoothly projected to a predetermined position to complete the expansion. It is possible to quickly support the impact force acting side of the airbag.

したがって、本発明のエアバッグ装置では、簡便な構成で、離隔側乗員を的確に保護することができる。 Therefore, in the airbag device of the present invention, the remote occupant can be accurately protected with a simple configuration.

また、本発明のエアバッグ装置において、カバー部材を、エアバッグの外周壁に連結されるシート体から構成すれば、構成を一層簡便にすることができて、好ましい。 In the airbag device of the present invention, it is preferable that the cover member is composed of a sheet body connected to the outer peripheral wall of the airbag because the configuration can be further simplified.

さらに、本発明のエアバッグ装置において、カバー部材を、内部に膨張用ガスを流入させて膨張するエアバッグの一部の部位から構成すれば、支持部材の衝撃力作用側が、内部に膨張用ガスを流入させて膨張しているエアバッグの一部により覆われることから、近接側座席に近接側乗員が着座している場合、膨張部位を介在させて、支持部材が近接側乗員と干渉することを、一層、抑制することができて、好ましい。 Further, in the airbag device of the present invention, if the cover member is configured from a part of the airbag that is inflated by inflating the inflation gas, the impact force acting side of the support member is inflated to the inside. When the near side occupant is seated in the close side seat, the support member interferes with the close side occupant through the inflated part. Can be further suppressed, which is preferable.

さらにまた、上記構成のエアバッグ装置において、支持部材を、金属製とするとともに、外表面側に、合成樹脂製若しくはゴム製の保護層を配置させる構成とすれば、支持部材は、十分な強度を有して、離隔側乗員を受け止めたエアバッグの衝撃力作用側を、的確に支持することができ、かつ、エアバッグやカバー部材との接触時に、外表面側に配置される保護層によって、エアバッグやカバー部材にダメージを与えることを抑制できて、好ましい。 Furthermore, in the airbag apparatus configured as described above, if the support member is made of metal and a protective layer made of synthetic resin or rubber is disposed on the outer surface side, the support member has sufficient strength. The impact force acting side of the airbag that has received the occupant on the separation side can be accurately supported, and the protective layer disposed on the outer surface side when in contact with the airbag or the cover member. It is preferable because damage to the airbag and the cover member can be suppressed.

本発明の一実施形態であるエアバッグ装置を搭載させた座席の側面図である。1 is a side view of a seat on which an airbag device according to an embodiment of the present invention is mounted. 図１の座席において、背もたれ部の部位を拡大した部分拡大側面図である。In the seat of FIG. 1, it is the elements on larger scale which expanded the site | part of the backrest part. 図２のIII−III部位の部分拡大断面図である。FIG. 3 is a partial enlarged cross-sectional view of a III-III portion in FIG. 2. 実施形態のエアバッグ装置に使用するエアバッグを平らに展開した状態の平面図である。It is a top view of the state where the air bag used for the air bag device of an embodiment was developed flat. 図４のエアバッグを単体で膨張させた状態の断面図であり、図４のＶ−Ｖ部位に対応する。FIG. 5 is a cross-sectional view of a state where the airbag of FIG. 4 is inflated alone, corresponding to the VV portion of FIG. 4. 図４のエアバッグにおいて、バッグ本体及びテザーと、カバー部材とを並べた状態の平面図である。FIG. 5 is a plan view of the airbag of FIG. 4 in a state in which a bag body, a tether, and a cover member are arranged. 実施形態のエアバッグ装置に使用する支持部材の概略斜視図である。It is a schematic perspective view of the support member used for the airbag apparatus of embodiment. 実施形態のエアバッグ装置において、エアバッグが膨張を完了させた状態を示す側面図である。In the airbag apparatus of embodiment, it is a side view which shows the state which the airbag completed inflation. 実施形態のエアバッグ装置において、エアバッグが膨張を完了させた状態を示す前後方向に沿った概略横断面図である。In the airbag apparatus of embodiment, it is a schematic cross-sectional view along the front-back direction which shows the state which the airbag completed inflation. 実施形態のエアバッグ装置において、エアバッグが膨張を完了させた状態を示す車両前方側から見た概略図である。In the airbag apparatus of embodiment, it is the schematic seen from the vehicle front side which shows the state which the airbag completed the expansion | swelling. 本発明の他の形態であるエアバッグを平らに展開した状態の平面図である。It is a top view of the state which developed the air bag which is other forms of the present invention flat. 図１１のエアバッグを単体で膨張させた状態の断面図であり、図１１のXII−XII部位に対応する。It is sectional drawing of the state which expanded the airbag of FIG. 11 alone, and respond | corresponds to the XII-XII site | part of FIG. 図１１のエアバッグを使用したエアバッグ装置において、エアバッグが膨張を完了させた状態を示す側面図である。FIG. 12 is a side view showing a state in which the airbag is completely inflated in the airbag device using the airbag of FIG. 11. 図１１のエアバッグを使用したエアバッグ装置において、エアバッグが膨張を完了させた状態を示す前後方向に沿った概略横断面図である。FIG. 12 is a schematic cross-sectional view along the front-rear direction showing a state in which the airbag is completely inflated in the airbag device using the airbag of FIG. 11. 図１１のエアバッグを使用したエアバッグ装置において、エアバッグが膨張を完了させた状態を示す車両前方側から見た概略図である。FIG. 12 is a schematic view of the airbag device using the airbag of FIG. 11 as seen from the front side of the vehicle, showing a state in which the airbag is completely inflated.

以下、本発明の一実施形態を図面に基づいて説明する。なお、実施形態において、前後・上下・左右の方向は、特に断らない限り、車両の前後・上下・左右の方向と一致するものである。 Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the embodiment, the front-rear, up-down, left-right directions coincide with the front-rear, up-down, left-right directions of the vehicle unless otherwise specified.

実施形態では、図１０に示すように、左右方向に沿って併設される運転席ＤＳと助手席ＰＳとを備える車両Ｖにおいて、左側ＬＷ（助手席ＰＳ側）から側面衝突された場合を、例に採り説明する。すなわち、実施形態では、右側ＲＷに位置する運転席ＤＳが、衝突側（衝撃力作用側）から遠い離隔側座席とされ、左側ＬＷに位置する助手席ＰＳが、衝突側（衝撃力作用側）に近い近接側座席とされて、運転席ＤＳに着座した運転者ＤＰを、離隔側乗員として保護するエアバッグ装置Ｍを、例に採り説明する。 In the embodiment, as shown in FIG. 10, in a vehicle V including a driver seat DS and a passenger seat PS provided along the left-right direction, a case where a side collision occurs from the left LW (passenger seat PS side) is an example. To explain. That is, in the embodiment, the driver's seat DS positioned on the right RW is a separate seat far from the collision side (impact force acting side), and the passenger seat PS positioned on the left LW is the collision side (impact force acting side). An example of an airbag device M that protects the driver DP seated in the driver seat DS as a close-side occupant as a close-side passenger seat will be described.

エアバッグ装置Ｍを搭載させる運転席ＤＳは、図１に示すように、座部１と、座部１の後端側から後上方に向かって延びる背もたれ部２と、背もたれ部２の上端から上方に突出するヘッドレスト７と、を備えている。 As shown in FIG. 1, the driver seat DS on which the airbag apparatus M is mounted includes a seat portion 1, a backrest portion 2 that extends rearwardly from the rear end side of the seat portion 1, and an upper portion from the upper end of the backrest portion 2. And a headrest 7 projecting from the head.

背もたれ部２は、図２，３に示すように、板金素材からなるシートフレーム３と、シートフレーム３の周囲を覆うように配置されるクッション６と、を備える構成である。シートフレーム３は、背もたれ部２の左右両縁側と上縁側とにかけて、前後方向側から見て略逆Ｕ字形状に、配置されるものであり、実施形態では、シートフレーム３において、衝撃力作用側となる左側ＬＷに位置する左縦フレーム部４に、エアバッグ装置Ｍが取り付けられている。左縦フレーム部４は、図３に示すように、略平板状として、運転席ＤＳ及び助手席ＰＳの並設方向と略直交する方向、すなわち、前後方向に略沿って、配置されるもので、背もたれ部２の上下の略全域にわたって、配置されている。そして、実施形態の場合、エアバッグ装置Ｍは、図３に示すように、背もたれ部２におけるシートフレーム３の左縦フレーム部４とクッション６との間に形成される隙間に、収納されている。なお、背もたれ部２のクッション６の外表面側には、表皮（図符号省略）が配置されているが、この表皮は、エアバッグ１６の展開膨張時に、クッション６の一部の破断に伴って一部を破断させて、エアバッグ１６と支持部材２６とを前方に突出させることとなる。 As shown in FIGS. 2 and 3, the backrest 2 is configured to include a seat frame 3 made of a sheet metal material and a cushion 6 arranged so as to cover the periphery of the seat frame 3. The seat frame 3 is arranged in a substantially inverted U shape when viewed from the front-rear direction side from the left and right edge sides and the upper edge side of the backrest portion 2. In the embodiment, the seat frame 3 has an impact force action. The airbag device M is attached to the left vertical frame portion 4 located on the left side LW which is the side. As shown in FIG. 3, the left vertical frame portion 4 has a substantially flat plate shape and is disposed substantially along the direction substantially perpendicular to the parallel arrangement direction of the driver seat DS and the passenger seat PS, that is, in the front-rear direction. The backrest 2 is disposed over substantially the entire upper and lower portions. And in the case of embodiment, as shown in FIG. 3, the airbag apparatus M is accommodated in the clearance gap formed between the left vertical frame part 4 and the cushion 6 of the seat frame 3 in the backrest part 2. As shown in FIG. . An outer skin (not shown) is disposed on the outer surface side of the cushion 6 of the backrest 2, and this outer skin is accompanied by a breakage of a part of the cushion 6 when the airbag 16 is deployed and inflated. A part is broken and the airbag 16 and the supporting member 26 will protrude ahead.

エアバッグ装置Ｍは、運転席ＤＳの衝撃力作用側である左側ＬＷの側面側（左縦フレーム部４の左側面側）に配置されるもので、図１〜３に示すように、運転席ＤＳの背もたれ部２内に折り畳まれて収納されるエアバッグ１６と、エアバッグ１６に膨張用ガスを供給するインフレーター１０と、背もたれ部２内に配置されてエアバッグ１６の展開膨張により車両前方側へ突出する支持部材２６と、膨張完了時のエアバッグ１６の左側面側に配置されて支持部材２６を覆うカバー部材２３と、を備えている。 The airbag device M is disposed on the side surface side of the left side LW (the left side surface side of the left vertical frame portion 4), which is the impact force acting side of the driver seat DS, and as shown in FIGS. An airbag 16 that is folded and housed in the DS backrest 2, an inflator 10 that supplies inflation gas to the airbag 16, and a vehicle front side that is disposed in the backrest 2 and is deployed and inflated by the airbag 16. And a cover member 23 which is disposed on the left side surface of the airbag 16 when the inflation is completed and covers the support member 26.

インフレーター１０は、図１〜３に示すように、略円柱状の本体１１と、本体１１の外周側を覆うように配置される取付ブラケット１２と、を備えている。本体１１は、長手方向を左縦フレーム部４に略沿わせるように配置されるもので、実施形態の場合、円柱状の大径部１１ａと、大径部１１ａの上端側に設けられてガス吐出口１１ｃを有した小径部１１ｂと、を備えるとともに、大径部１１ａの下端側に、図示しないエアバッグ作動回路と電気的に接続されるリード線１１ｄを結線させて構成されている。取付ブラケット１２は、本体１１を保持可能な略円筒状の保持部１２ａと、保持部１２ａから右側に向かって突出する取付ボルト１２ｂと、を備えている。取付ボルト１２ｂは、保持部１２ａの軸方向に沿って、２箇所に形成されている。 As shown in FIGS. 1 to 3, the inflator 10 includes a substantially columnar main body 11 and a mounting bracket 12 arranged to cover the outer peripheral side of the main body 11. The main body 11 is arranged so that the longitudinal direction is substantially along the left vertical frame portion 4. In the case of the embodiment, the main body 11 is provided on the upper end side of the cylindrical large diameter portion 11 a and the large diameter portion 11 a. A small-diameter portion 11b having a discharge port 11c, and a lead wire 11d that is electrically connected to an airbag operation circuit (not shown) is connected to the lower end side of the large-diameter portion 11a. The mounting bracket 12 includes a substantially cylindrical holding portion 12a that can hold the main body 11, and a mounting bolt 12b that protrudes rightward from the holding portion 12a. The mounting bolts 12b are formed at two locations along the axial direction of the holding portion 12a.

そして、実施形態の場合、インフレーター１０は、エアバッグ１６に形成される後述する取付孔１８から取付ボルト１２ｂを突出させ、リード線１１ｄを外部に突出させるようにして、エアバッグ１６内に収納された状態で、エアバッグ１６から突出している取付ボルト１２ｂを、左縦フレーム部４から突出させてナット１３止めすることにより、エアバッグ１６とともに、左縦フレーム部４の左側面に取り付けられる構成である（図３参照）。実施形態の場合、取付ボルト１２ｂは、支持部材２６を左縦フレーム部４に取り付ける取付ブラケット３１の右側壁３２を経て、左縦フレーム部４から突出される構成であり、インフレーター１０は、エアバッグ１６及び支持部材２６とともに、左縦フレーム部４に取り付けられている。 In the case of the embodiment, the inflator 10 is housed in the airbag 16 so that the mounting bolt 12b protrudes from a mounting hole 18 described later formed in the airbag 16 and the lead wire 11d protrudes to the outside. In this state, the mounting bolt 12b protruding from the airbag 16 is protruded from the left vertical frame portion 4 and fastened with a nut 13 to be attached to the left side surface of the left vertical frame portion 4 together with the airbag 16. Yes (see FIG. 3). In the case of the embodiment, the mounting bolt 12b is configured to protrude from the left vertical frame portion 4 via the right side wall 32 of the mounting bracket 31 for mounting the support member 26 to the left vertical frame portion 4, and the inflator 10 is an airbag. 16 and the support member 26 are attached to the left vertical frame portion 4.

エアバッグ１６は、上述したごとく、インフレーター１０とともに、支持部材２６を左縦フレーム部４に取り付ける取付ブラケット３１の右側壁３２を介して、左縦フレーム部４に取り付けられるもので、実施形態の場合、内部に膨張用ガスを流入させて膨張するバッグ本体１７と、支持部材２６と連結されるテザー２１と、を備えている。 As described above, the airbag 16 is attached to the left vertical frame portion 4 via the right wall 32 of the mounting bracket 31 that attaches the support member 26 to the left vertical frame portion 4 together with the inflator 10. The bag body 17 is inflated by inflating the inflation gas, and the tether 21 is connected to the support member 26.

バッグ本体１７は、図８に示すように、膨張完了時に、運転席ＤＳに着座した運転者ＤＰ（離隔側乗員）の左側ＬＷ（衝撃力作用側）を覆うように配置されるもので、膨張完了形状を、背もたれ部２から斜め前上方に突出するような略楕円板状として、膨張完了時の下端側を、左縦フレーム部４に取り付けられている。バッグ本体１７は、図４〜６に示すように、外形形状を略同一とされて、膨張完了時に運転者ＤＰ側となる右側に配置される右側壁部１７ａと、左側に配置される左側壁部１７ｂと、を有し、この右側壁部１７ａと左側壁部１７ｂとの周縁相互を結合させて、袋状とされている。実施形態の場合、バッグ本体１７は、ポリアミド糸やポリエステル糸等からなる可撓性を有した織布の表面にシリコン等のコーティング剤を塗布したコート布から、形成されている。また、右側壁部１７ａの下端近傍には、インフレーター１０の取付ボルト１２ｂを挿通させるための取付孔１８が、前後２箇所に形成されている。また、バッグ本体１７の内部には、膨張完了時の厚さを規制する帯状の厚さ規制部材１９が、両縁側を、それぞれ、右側壁部１７ａと左側壁部１７ｂとに縫着させるようにして、配置されている。厚さ規制部材１９は、バッグ本体１７と同様に、可撓性を有した織布から形成され、実施形態の場合、膨張完了時のバッグ本体１７を側方から見て、バッグ本体１７の外形形状と略相似形となる略楕円筒状として（図４，６参照）、図５に示すように、軸方向に沿った両縁側を、右側壁部１７ａと左側壁部１７ｂとに縫着させて構成されている。 As shown in FIG. 8, the bag body 17 is disposed so as to cover the left side LW (impact force acting side) of the driver DP (separate side occupant) seated in the driver seat DS when the inflation is completed. The completed shape is a substantially elliptical plate shape that projects obliquely upward and upward from the backrest portion 2, and the lower end side at the time of completion of expansion is attached to the left vertical frame portion 4. As shown in FIGS. 4 to 6, the bag body 17 has substantially the same outer shape, and the right side wall portion 17 a that is disposed on the right side that becomes the driver DP side when the inflation is completed, and the left side wall that is disposed on the left side. Part 17b, and the peripheral edges of the right side wall part 17a and the left side wall part 17b are joined together to form a bag. In the case of the embodiment, the bag body 17 is formed from a coated cloth in which a coating agent such as silicon is applied to the surface of a flexible woven cloth made of polyamide yarn or polyester yarn. Moreover, the attachment hole 18 for allowing the attachment bolt 12b of the inflator 10 to be inserted is formed in two places near the lower end of the right side wall portion 17a. Further, inside the bag body 17, a band-shaped thickness regulating member 19 that regulates the thickness at the completion of the expansion is sewn to the right side wall part 17 a and the left side wall part 17 b, respectively. Arranged. The thickness regulating member 19 is formed of a woven fabric having flexibility like the bag main body 17. In the case of the embodiment, the outer shape of the bag main body 17 is viewed from the side of the bag main body 17 when the expansion is completed. As a substantially oval cylindrical shape that is substantially similar to the shape (see FIGS. 4 and 6), as shown in FIG. 5, both edge sides along the axial direction are sewn to the right side wall portion 17a and the left side wall portion 17b. Configured.

テザー２１は、図５に示すように、膨張完了時のバッグ本体１７において、衝撃力作用側（左側ＬＷ）となる左側壁部１７ｂの外表面側に配置されるもので、元部２１ａ側を、膨張完了時の前縁において上下の中央よりやや下方となる位置に連結され、先端２１ｂ側を、後述するごとく、支持部材２６の先端２６ｂ側に連結されている。実施形態の場合、テザー２１は、可撓性を有した帯状の織布から構成されており、テザー２１の元部２１ａ側は、右側壁部１７ａと左側壁部１７ｂとの周縁相互を縫合糸を用いて縫着させてバッグ本体１７を製造する際に、共縫いされて、バッグ本体１７に連結されている。このテザー２１は、バッグ本体１７の展開膨張時に、背もたれ部２から前方に突出するように膨張するバッグ本体１７の膨張に伴って、待機位置Ｐ１に配置される支持部材２６を、先端２６ｂ側を前方に向けつつ突出するように前側に向かって回転させて、支持位置Ｐ２に配置させるために、配設されるものである。実施形態の場合、テザー２１は、バッグ本体１７の膨張完了時であって支持部材２６の突出完了後に、側方から見て、バッグ本体１７に連結される元部２１ａ側を前下方に位置させ、支持部材２６に連結される先端２１ｂ側を後上方に位置させるように、傾斜して配置されることとなる（図８参照）。 As shown in FIG. 5, the tether 21 is disposed on the outer surface side of the left side wall portion 17b which is the impact force acting side (left side LW) in the bag body 17 at the time of completion of the inflation. The front edge when the expansion is completed is connected to a position slightly below the center of the top and bottom, and the front end 21b side is connected to the front end 26b side of the support member 26 as described later. In the case of the embodiment, the tether 21 is composed of a belt-like woven fabric having flexibility, and the base portion 21a side of the tether 21 is a suture thread between the peripheral edges of the right wall portion 17a and the left wall portion 17b. When the bag body 17 is manufactured by sewing, the two are sewn together and connected to the bag body 17. When the bag body 17 is expanded and inflated, the tether 21 moves the support member 26 disposed at the standby position P1 on the front end 26b side as the bag body 17 expands so as to protrude forward from the backrest 2. It is arranged to rotate toward the front side so as to protrude while facing forward and to be arranged at the support position P2. In the case of the embodiment, the tether 21 is located at the time when the expansion of the bag body 17 is completed, and after the protrusion of the support member 26 is completed, the base portion 21a side connected to the bag body 17 is positioned forward and downward when viewed from the side. The tip 21b connected to the support member 26 is inclined and disposed so as to be positioned rearward and upward (see FIG. 8).

カバー部材２３は、実施形態の場合、図４〜６に示すように、バッグ本体１７と別体とされて、膨張完了時のバッグ本体１７において衝撃力作用側（左側）となる左側壁部１７ｂ（外周壁）に連結されるシート体から、構成されている。実施形態の場合、カバー部材２３を構成するシート体は、可撓性を有した織布から形成されており、実施形態の場合、ポリアミド糸やポリエステル糸等からなる可撓性を有した織布にコーティング剤を塗布させていないノンコート布から形成されている。このカバー部材２３は、支持部材２６の衝撃力作用側（左側ＬＷ）を、移動開始時から移動完了時（支持位置Ｐ２への配置）まで覆い可能に、構成されている。具体的には、カバー部材２３は、外形形状を、膨張完了時のバッグ本体１７の下半分程度の領域の左側を覆い可能として、上縁２３ａを、突出完了時（支持位置Ｐ２）の支持部材２６の先端２６ｂより上方に位置させるように構成されている（図８参照）。また、カバー部材２３は、バッグ本体１７の展開膨張時において、前方移動（突出）する支持部材２６を、バッグ本体１７との間の隙間の部位に円滑に挿通可能とするように、バッグ本体１７側に連結されている。具体的には、カバー部材２３は、上縁２３ａ側と下縁２３ｂ側とを、それぞれ、部分的に、バッグ本体１７側に連結されている。さらに詳細には、カバー部材２３は、外形形状を、膨張完了時のバッグ本体１７の下半分程度の領域と略同一形状として、かつ、上縁２３ａを、バッグ本体１７の膨張完了時に、後側を上方に向けるように前後方向に対して傾斜させて、構成されている。このカバー部材２３の上縁２３ａは、バッグ本体１７の膨張完了時において、支持部材２６の先端２６ｂの移動軌跡より上方に位置するように、構成され、厚さ規制部材１９の配置領域を除き、厚さ規制部材１９の前後両側となる部位において、バッグ本体１７の左側壁部１７ｂに縫着されている（図４〜６参照）。また、このカバー部材２３は、背もたれ部２内においても、支持部材２６において、左縦フレーム部４に取り付ける取付ブラケット３１を含めた全体の左側ＬＷ（衝撃力作用側）を覆うように配置されており、取付ブラケット３１の配置領域から外れた前後両側の部位で、下縁２３ｂを、バッグ本体１７の左側壁部１７ｂに縫着させている。そして、実施形態では、このカバー部材２３は、上縁側を部分的にバッグ本体１７とともに折り畳まれ、下縁側の部位で取付ブラケット３１の左側を覆うようにして、支持部材２６の左側を覆うように、支持部材２６を迂回しつつ、背もたれ部２内に収納されている。 In the case of the embodiment, as shown in FIGS. 4 to 6, the cover member 23 is a separate body from the bag body 17, and the left wall portion 17 b that is the impact force acting side (left side) in the bag body 17 when the inflation is completed. It is comprised from the sheet | seat body connected with (outer peripheral wall). In the case of the embodiment, the sheet member constituting the cover member 23 is formed of a flexible woven fabric. In the case of the embodiment, the flexible woven fabric made of polyamide yarn, polyester yarn, or the like. It is formed from a non-coated cloth in which no coating agent is applied. The cover member 23 is configured to be able to cover the impact force acting side (left side LW) of the support member 26 from the start of movement to the completion of movement (arrangement at the support position P2). Specifically, the cover member 23 can cover the outer shape of the left side of the region of the lower half of the bag body 17 when the inflation is completed, and the upper edge 23a is a support member when the protrusion is completed (support position P2). It is comprised so that it may be located above the front-end | tip 26b of 26 (refer FIG. 8). Further, the cover member 23 is configured so that the support member 26 that moves forward (projects) when the bag body 17 is deployed and inflated can be smoothly inserted into a gap portion between the bag body 17 and the bag body 17. It is connected to the side. Specifically, the cover member 23 is partially connected to the bag body 17 side on the upper edge 23a side and the lower edge 23b side, respectively. More specifically, the cover member 23 has an outer shape that is substantially the same shape as the region of the lower half of the bag body 17 when inflation is completed, and the upper edge 23 a Is inclined with respect to the front-rear direction so as to face upward. The upper edge 23a of the cover member 23 is configured to be positioned above the movement locus of the tip 26b of the support member 26 when the bag body 17 is completely inflated. In the site | part used as the both front and back sides of the thickness control member 19, it is sewn on the left side wall part 17b of the bag main body 17 (refer FIGS. 4-6). Also, the cover member 23 is arranged in the backrest portion 2 so as to cover the entire left side LW (impact force acting side) including the mounting bracket 31 attached to the left vertical frame portion 4 in the support member 26. The lower edge 23 b is sewn to the left side wall portion 17 b of the bag body 17 at the front and rear side portions that are out of the arrangement area of the mounting bracket 31. In the embodiment, the cover member 23 is partially folded on the upper edge side together with the bag body 17 so as to cover the left side of the support bracket 26 so as to cover the left side of the mounting bracket 31 at the lower edge side portion. The backrest 2 is accommodated in the backrest 2 while bypassing the support member 26.

支持部材２６は、背もたれ部２内に収納されて、展開膨張するエアバッグ１６を駆動源として、エアバッグ１６の展開膨張時に前方に突出して、バッグ本体１７の衝撃力作用側（左側ＬＷ）を支持可能に、構成されている。具体的には、支持部材２６は、板金素材から形成されるとともに、外表面側に、合成樹脂製若しくはゴム製の保護層２７を、全面にわたって配置させて構成されている（図７参照）。保護層２７を形成する材料としては、具体的には、ポリプロピレン（ＰＰ）、ポリウレタン系熱可塑性エラストマー（ＴＰＵ）、ポリオレフィン系熱可塑性エラストマー（ＴＰＯ）、エチレン・プロピレンゴム（ＥＰＤＭ）等を挙げることができる。この保護層２７は、バッグ本体１７の左側壁部１７ｂやカバー部材３２を傷付けないように、弾性を有し、また、外表面を平滑に形成されている。そして、実施形態の場合、支持部材２６は、図２，３，７に示すように、長尺の略平板状として、前方を開口させた断面略コ字形状の取付ブラケット３１を用いて、背もたれ部２におけるシートフレーム３の左縦フレーム部４に取り付けられている。取付ブラケット３１は、右側壁３２に、インフレーター１０の取付ボルト１２ｂを挿通可能な挿通孔３２ａを有し、内部に、折り畳まれたエアバッグ１６とインフレーター１０とを挿入させるようにして、右側壁３２から突出させたインフレーター１０の取付ボルト１２ｂと、ナット１３と、を利用して、左縦フレーム部４に取り付けられる構成である。 The support member 26 is housed in the backrest portion 2 and uses the airbag 16 that is deployed and inflated as a drive source, and projects forward when the airbag 16 is deployed and inflated, so that the impact force acting side (left side LW) of the bag body 17 is supported. It is configured to be supportable. Specifically, the support member 26 is formed of a sheet metal material, and a synthetic resin or rubber protective layer 27 is disposed on the entire outer surface side (see FIG. 7). Specific examples of the material forming the protective layer 27 include polypropylene (PP), polyurethane-based thermoplastic elastomer (TPU), polyolefin-based thermoplastic elastomer (TPO), and ethylene / propylene rubber (EPDM). it can. The protective layer 27 has elasticity and has a smooth outer surface so as not to damage the left side wall portion 17b of the bag body 17 and the cover member 32. In the case of the embodiment, as shown in FIGS. 2, 3, and 7, the support member 26 is a long, substantially flat plate shape, and uses a mounting bracket 31 having a substantially U-shaped cross-section with the front opening, and the backrest. It is attached to the left vertical frame part 4 of the seat frame 3 in the part 2. The mounting bracket 31 has an insertion hole 32a through which the mounting bolt 12b of the inflator 10 can be inserted in the right side wall 32. The folded airbag 16 and the inflator 10 are inserted into the right side wall 32. It is the structure attached to the left vertical frame part 4 using the attachment volt | bolt 12b and the nut 13 of the inflator 10 made to protrude from.

支持部材２６は、取付ブラケット３１の左側壁３３に回動可能に取り付けられるもので、待機位置Ｐ１においては、図１，２に示すように、長手方向を左縦フレーム部４に略沿わせるようにして、背もたれ部２に収納されている。そして、駆動源としてのエアバッグ１６の展開膨張時には、支持部材２６は、先端２６ｂを前方に向けるように回転することにより、前方に突出して、エアバッグ１６の衝撃力作用側（左側ＬＷ）を支持する支持位置Ｐ２に配置される構成である（図８参照）。詳細には、支持部材２６は、元部２６ａ側を、軸方向を左右方向に沿わせて配置される回動軸部２８によって、回動自在に、取付ブラケット３１の左側壁３３に取り付けられている。また、取付ブラケット３１の左側壁３３において、回動軸部２８を挿通させる挿通孔３３ａの周囲には、支持部材２６の回転移動をガイドするガイド溝３３ｂが、挿通孔３３ａを中心とした略円弧状の溝状として、切り欠かれて形成されている（図７参照）。そして、支持部材２６の左側面側には、このガイド溝３３ｂに挿通可能とされるガイドピン２９が、左側ＬＷ（左側壁３３側）に突出するように、形成され、支持部材２６の回転移動時に、ガイドピン２９は、ガイド溝３３ｂに沿って移動することとなる。ガイド溝３３ｂの後縁３３ｃは、支持部材２６の前方への回転移動を規制するストッパを構成することとなり、ガイドピン２９がガイド溝３３ｂの後縁３３ｃに当接すれば、支持部材２６の前方への回転移動（突出）が完了して、支持部材２６が支持位置Ｐ２に配置されることとなる。また、実施形態の場合、支持部材２６は、ガイドピン２９をガイド溝３３ｂの前縁３３ｄに当接させるようにして、左縦フレーム部４に略沿って、待機位置Ｐ１で、背もたれ部２内に収納される構成である。さらに、支持部材２６には、図７に示すように、先端２６ｂ近傍となる前縁側（突出完了時における下縁側）に、テザー２１の先端２１ｂ側を挿通させて連結させる連結孔３０を、備えている。 The support member 26 is pivotally attached to the left side wall 33 of the attachment bracket 31. At the standby position P1, as shown in FIGS. 1 and 2, the longitudinal direction is substantially along the left vertical frame portion 4. Thus, it is stored in the backrest 2. When the airbag 16 as a driving source is deployed and inflated, the support member 26 rotates so that the tip 26b faces forward, thereby projecting forward, and the impact force acting side (left side LW) of the airbag 16 is moved. It is the structure arrange | positioned in the support position P2 to support (refer FIG. 8). Specifically, the support member 26 is attached to the left side wall 33 of the mounting bracket 31 so that the base portion 26a side can be rotated by a rotation shaft portion 28 that is disposed so that the axial direction thereof extends in the left-right direction. Yes. In addition, a guide groove 33b for guiding the rotational movement of the support member 26 is formed in a substantially circular shape around the insertion hole 33a around the insertion hole 33a through which the rotation shaft portion 28 is inserted in the left side wall 33 of the mounting bracket 31. It is formed by cutting out as an arcuate groove shape (see FIG. 7). A guide pin 29 that can be inserted into the guide groove 33b is formed on the left side of the support member 26 so as to protrude to the left side LW (left side wall 33 side). Sometimes the guide pin 29 moves along the guide groove 33b. The rear edge 33c of the guide groove 33b constitutes a stopper that restricts the forward movement of the support member 26. When the guide pin 29 comes into contact with the rear edge 33c of the guide groove 33b, the rear edge 33c moves forward. The rotational movement (protrusion) is completed, and the support member 26 is disposed at the support position P2. Further, in the case of the embodiment, the support member 26 makes the guide pin 29 abut on the front edge 33d of the guide groove 33b so that the support member 26 is substantially along the left vertical frame portion 4 at the standby position P1 and in the backrest portion 2. It is the structure accommodated in. Further, as shown in FIG. 7, the support member 26 is provided with a connecting hole 30 that allows the front end 21 b side of the tether 21 to be inserted and connected to the front edge side (lower edge side at the time of completion of the protrusion) near the front end 26 b. ing.

この支持部材２６は、エアバッグ１６の展開膨張時、バッグ本体１７の前方への突出に伴うテザー２１の前方移動により、待機位置Ｐ１から、先端２６ｂを前方へ引っ張られるような態様となって、回動軸部２８を中心として、先端２６ｂを前方に向けるように回転しつつ、背もたれ部２から前方へ突出することとなる（図８参照）。そして、ガイドピン２９がガイド溝３３ｂの後縁３３ｃに当接すれば、支持部材２６の前方への回転移動（突出）が完了して支持位置Ｐ２に配置されることとなり、この支持位置Ｐ２に配置された状態で、図９に示すように、膨張を完了させたバッグ本体１７の衝撃力作用側（左側ＬＷ）を支持することとなる。また、この支持部材２６は、エアバッグ１６の展開膨張時に、バッグ本体１７とカバー部材２３との間を通るようにして、前方へ突出されるもので、背もたれ部２から突出してから、支持位置Ｐ２に配置されるまで（移動開始時から移動完了時まで）、左側ＬＷ（衝撃力作用側）を、カバー部材２３によって、全面にわたって覆われることとなる。また、支持部材２６は、前方への突出完了時に、先端２６ｂを前上側に位置させるように、上下方向に対して傾斜して配置されるとともに、先端２６ｂを、カバー部材２３の上縁２３ａよりも下方であって、運転者ＤＰの肩部近傍に位置させるような長さ寸法に、設定されている（図８参照）。 The support member 26 is configured such that when the airbag 16 is deployed and inflated, the front end 26b is pulled forward from the standby position P1 by the forward movement of the tether 21 accompanying the forward projection of the bag body 17. Centering on the rotation shaft portion 28, the tip 26b projects forward from the backrest portion 2 while rotating so that the tip 26b faces forward (see FIG. 8). When the guide pin 29 comes into contact with the rear edge 33c of the guide groove 33b, the support member 26 completes rotational movement (protrusion) forward and is disposed at the support position P2, and is disposed at the support position P2. In this state, as shown in FIG. 9, the impact force acting side (left side LW) of the bag body 17 that has been inflated is supported. The support member 26 is projected forward so as to pass between the bag body 17 and the cover member 23 when the airbag 16 is deployed and inflated. The left side LW (impact force acting side) is covered over the entire surface by the cover member 23 until it is arranged at P2 (from the start of movement to the completion of movement). Further, the support member 26 is disposed so as to be inclined with respect to the vertical direction so that the front end 26b is positioned on the front upper side when the forward protrusion is completed, and the front end 26b is disposed on the upper edge 23a of the cover member 23. Is also set to a length dimension that is positioned below the shoulder portion of the driver DP (see FIG. 8).

実施形態のエアバッグ装置Ｍでは、車両Ｖの左側ＬＷから図示しない衝突物が衝突した側面衝突時に、エアバッグ作動回路からの作動信号を受けて、インフレーター１０が作動されることとなり、バッグ本体１７が、内部に膨張用ガスを流入させて膨張して、背もたれ部２から前方に突出し、また、このバッグ本体１７の前方への突出に伴って、待機位置Ｐ１において背もたれ部２内に収納されている支持部材２６が、先端２６ｂを前方に向けるように回転しつつ、前方へ突出されることとなる。そして、エアバッグ１６が、図８に示すように、運転者ＤＰの左側ＬＷ（衝撃力作用側）を覆うように膨張を完了させることとなり、支持部材２６が、図９，１０に示すように、膨張を完了させたエアバッグ１６の左側ＬＷ（衝撃力作用側）となる支持位置Ｐ２に、左側ＬＷをカバー部材２３に覆われた状態で配置されることとなる。 In the airbag apparatus M according to the embodiment, the inflator 10 is activated in response to an actuation signal from the airbag actuation circuit at the time of a side collision in which a collision object (not shown) collides from the left side LW of the vehicle V, and the bag body 17 is activated. However, it expands by inflowing an inflating gas into the interior and protrudes forward from the backrest portion 2, and is stored in the backrest portion 2 at the standby position P <b> 1 as the bag body 17 protrudes forward. The supporting member 26 is projected forward while rotating so that the tip 26b faces forward. Then, as shown in FIG. 8, the airbag 16 completes the inflation so as to cover the left side LW (impact force acting side) of the driver DP, and the support member 26 is shown in FIGS. The left side LW is covered with the cover member 23 at the support position P2 that is the left side LW (impact force acting side) of the airbag 16 that has been inflated.

そして、実施形態のエアバッグ装置Ｍでは、エアバッグ１６の衝撃力作用側（左側ＬＷ）を支持する支持部材２６が、離隔側座席である運転席ＤＳの背もたれ部２内に収納されて、展開膨張するエアバッグ１６を駆動源として、エアバッグ１６の展開膨張に伴って突出する構成とされ、また、この支持部材２６の衝撃力作用側（左側ＬＷ）を覆うカバー部材２３も、エアバッグ１６の展開膨張により突出する構成である。そのため、エアバッグ１６の展開膨張時に、同時に支持部材２６が突出し、また、カバー部材２３も、支持部材２６の左側ＬＷを覆うように配置されることから、従来のエアバッグ装置と比較して、構成部品の増加を抑制して、簡便な構成とすることができる。さらに、実施形態のエアバッグ装置Ｍでは、カバー部材２３が、支持部材２６の衝撃力作用側（左側ＬＷ）を、移動開始時から移動完了時（支持位置Ｐ２）まで覆う構成とされていることから、仮に、支持部材２６の衝撃力作用側（左側ＬＷ）の近接側座席（助手席ＰＳ）に近接側乗員が着座し、この近接側乗員が接近していても、近接側乗員との干渉を抑制して、支持部材２６を円滑に所定位置まで突出させることができ、膨張を完了させたエアバッグ１６の衝撃力作用側（左側ＬＷ）を迅速に支持させることができる。 In the airbag apparatus M of the embodiment, the support member 26 that supports the impact force acting side (left side LW) of the airbag 16 is accommodated in the backrest portion 2 of the driver seat DS that is the separation side seat, and deployed. The inflating airbag 16 is used as a drive source, and the airbag 16 projects as the airbag 16 is deployed and inflated. The cover member 23 that covers the impact force acting side (left side LW) of the support member 26 is also used as the airbag 16. It is the structure which protrudes by expansion | swelling expansion | swelling. Therefore, when the airbag 16 is deployed and inflated, the support member 26 protrudes at the same time, and the cover member 23 is also arranged so as to cover the left side LW of the support member 26, so compared with the conventional airbag device, An increase in the number of components can be suppressed and a simple configuration can be achieved. Furthermore, in the airbag apparatus M of the embodiment, the cover member 23 is configured to cover the impact force acting side (left side LW) of the support member 26 from the start of movement to the completion of movement (support position P2). Thus, even if the close side occupant is seated on the close side seat (passenger seat PS) on the impact force acting side (left side LW) of the support member 26 and the close side occupant is approaching, interference with the close side occupant Thus, the support member 26 can be smoothly protruded to a predetermined position, and the impact force acting side (left side LW) of the airbag 16 that has been inflated can be quickly supported.

したがって、実施形態のエアバッグ装置Ｍでは、簡便な構成で、離隔側乗員（運転者ＤＰ）を的確に保護することができる。 Therefore, in the airbag apparatus M of embodiment, the separation side passenger | crew (driver | operator DP) can be protected exactly with a simple structure.

また、実施形態のエアバッグ装置Ｍでは、カバー部材２３を、エアバッグ１６の外周壁（左側壁部１７ｂ）に連結されるシート体から構成していることから、一枚のシート体からなるカバー部材をエアバッグ１６の外周壁（左側壁部１７ｂ）に連結させるだけでよく、構成を一層簡便にすることができる。また、カバー部材を備えない構成のエアバッグ装置にも、容易に適用させることができる。さらに、実施形態のエアバッグ装置Ｍでは、カバー部材２３はシート体であるが、下縁２３ｂ側をバッグ本体１７（エアバッグ１６）に連結されていることから、エアバッグ１６の展開膨張時に、支持部材２６の移動等に伴ってまくれ上がることを抑制できて、円滑に、支持部材２７の左側ＬＷを覆うことができる。なお、勿論、このような点を考慮しなければ、後述する図１１，１２に示すようなエアバッグ４０を使用する構成としてもよい。 Further, in the airbag apparatus M of the embodiment, the cover member 23 is constituted by a sheet body connected to the outer peripheral wall (the left side wall portion 17b) of the airbag 16, so that the cover composed of a single sheet body. It is only necessary to connect the member to the outer peripheral wall (left side wall portion 17b) of the airbag 16, and the configuration can be further simplified. In addition, the present invention can be easily applied to an airbag apparatus having a configuration that does not include a cover member. Furthermore, in the airbag apparatus M of the embodiment, the cover member 23 is a sheet body, but since the lower edge 23b side is connected to the bag body 17 (airbag 16), when the airbag 16 is deployed and inflated, It is possible to prevent the support member 26 from turning up with the movement of the support member 26 and so on, and to smoothly cover the left side LW of the support member 27. Of course, if such a point is not taken into consideration, an airbag 40 as shown in FIGS. 11 and 12 described later may be used.

さらに、実施形態のエアバッグ装置Ｍでは、図７に示すように、支持部材２６を、金属製とするとともに、外表面側に、合成樹脂製若しくはゴム製の保護層２７を配置させていることから、支持部材２６は、十分な強度を有して、離隔側乗員（運転者ＤＰ）を受け止めたエアバッグ１６の衝撃力作用側（左側ＬＷ）を、的確に支持することができ、かつ、エアバッグ１６やカバー部材２３との接触時に、保護層２７によりエアバッグ１６やカバー部材２３にダメージを与えることを抑制できる。 Furthermore, in the airbag apparatus M of the embodiment, as shown in FIG. 7, the support member 26 is made of metal, and a protective layer 27 made of synthetic resin or rubber is arranged on the outer surface side. Therefore, the support member 26 has sufficient strength, can accurately support the impact force acting side (left side LW) of the airbag 16 that has received the separation side occupant (driver DP), and It is possible to suppress damage to the airbag 16 and the cover member 23 by the protective layer 27 at the time of contact with the airbag 16 and the cover member 23.

次に、本発明の他の実施形態のエアバッグ４０について説明をする。エアバッグ４０は、図１１，１２に示すように、内部に膨張用ガスを流入させて膨張するバッグ本体４１と、支持部材２６と連結されるテザー２１Ａと、を備えている。テザー２１Ａは、上述のエアバッグ１６に配置されるテザー２１と同一の構成であり、詳細な説明を省略する。 Next, an airbag 40 according to another embodiment of the present invention will be described. As shown in FIGS. 11 and 12, the airbag 40 includes a bag body 41 that inflates by inflating an inflation gas therein, and a tether 21 </ b> A that is connected to the support member 26. The tether 21A has the same configuration as the tether 21 arranged in the airbag 16 described above, and detailed description thereof is omitted.

バッグ本体４１は、側方から見た膨張完了形状を、上述のエアバッグ１６におけるバッグ本体１７と同様に、背もたれ部２から斜め上方に突出するような略楕円板状として、膨張完了時の下端側を、左縦フレーム部４に取り付けられている。そして、バッグ本体４１は、膨張完了時の上下の中央付近から下側の領域を、間に突出する支持部材２６を挿通可能なように、左右で二股に分岐させて、構成されている。すなわち、バッグ本体４１は、図１１，１２に示すように、離隔側乗員としての運転者ＤＰの衝撃力作用側（左側ＬＷ）を覆うように配置されて運転者ＤＰを保護する乗員保護部４２と、乗員保護部４２の下端側の左側に配置されるように上下の中央付近から連通されて、下方に延びるカバー部４４と、を備える構成とされ、このカバー部４４が、突出完了時の支持部材２６の衝撃力作用側（左側ＬＷ）を覆うカバー部材を構成している。 The bag body 41 has an inflated complete shape viewed from the side as a substantially elliptical plate shape that protrudes obliquely upward from the backrest 2 in the same manner as the bag body 17 in the airbag 16 described above. The side is attached to the left vertical frame part 4. The bag body 41 is configured by bifurcating the left and right regions so that the support member 26 projecting therebetween can be inserted through the lower region from the vicinity of the upper and lower centers when the inflation is completed. That is, as shown in FIGS. 11 and 12, the bag main body 41 is disposed so as to cover the impact force acting side (left side LW) of the driver DP as the separation side occupant and protects the driver DP. And a cover portion 44 that is communicated from near the upper and lower centers so as to be arranged on the left side of the lower end side of the occupant protection portion 42, and extends downward. A cover member that covers the impact force acting side (left side LW) of the support member 26 is configured.

バッグ本体４１は、実施形態の場合、膨張完了時に運転者ＤＰ側となる右側に配置される外右側壁部４１ａと、左側に配置される外左側壁部４１ｂと、下端側の領域の内周側における右側に配置される内右側壁部４１ｃと、内周側における左側に配置される内左側壁部４１ｄと、を備える構成とされている。外右側壁部４１ａと外左側壁部４１ｂとは、平らに展開した状態の外形形状を同一に構成され、内右側壁部４１ｃと内左側壁部４１ｄとは、平らに展開した状態の外形形状を、外右側壁部４１ａ，外左側壁部４１ｂにおける下側半分程度の領域と略同一の外形形状として、構成されている。そして、バッグ本体４１は、外右側壁部４１ａ，外左側壁部４１ｂの上縁相互、内右側壁部４１ｃ，内左側壁部４１ｄの上縁相互、外右側壁部４１ａ，内右側壁部４１ｃの下縁相互、外左側壁部４１ｂ，内左側壁部４１ｄの下縁相互を、それぞれ、結合させることにより、袋状とされている。そして、実施形態のバッグ本体４１では、図示しないが、乗員保護部４２の下端近傍となる外右側壁部４１ａの下端近傍に、インフレーター１０の取付ボルト１２ｂを挿通させるための取付孔が、形成されている。また、実施形態のバッグ本体４１では、テザー２１Ａは、乗員保護部４２において、カバー部４４の右側に配置される下側部位４２ｂの衝撃力作用側（左側ＬＷ）となる内右側壁部４１ｃの外表面側に、配置されている。 In the case of the embodiment, the bag body 41 includes an outer right wall 41a disposed on the right side that is the driver DP side upon completion of inflation, an outer left wall 41b disposed on the left side, and an inner periphery of the lower end side region. It is set as the structure provided with the inner right side wall part 41c arrange | positioned at the right side in a side, and the inner left side wall part 41d arrange | positioned at the left side in an inner peripheral side. The outer right wall portion 41a and the outer left wall portion 41b are configured to have the same outer shape in a flat state, and the inner right wall portion 41c and the inner left wall portion 41d are in an outer shape in a flat state. Is configured as an outer shape substantially the same as the region of the lower half of the outer right wall 41a and the outer left wall 41b. The bag body 41 includes the outer right side wall portion 41a and the outer left side wall portion 41b at the upper edges thereof, the inner right side wall portion 41c and the inner left side wall portion 41d at the upper edges thereof, the outer right side wall portion 41a and the inner right side wall portion 41c. The lower edges of each other, the lower left wall 41b and the lower left wall 41d are joined together to form a bag. And in the bag main body 41 of embodiment, although not shown in figure, the attachment hole for making the attachment bolt 12b of the inflator 10 penetrate is formed in the lower end vicinity of the outer right side wall part 41a used as the lower end vicinity of the passenger | crew protection part 42. ing. Further, in the bag main body 41 of the embodiment, the tether 21A is provided on the inner right side wall portion 41c that becomes the impact force acting side (left side LW) of the lower portion 42b arranged on the right side of the cover portion 44 in the occupant protection portion 42. It is arranged on the outer surface side.

カバー部４４は、支持部材２６の衝撃力作用側（左側ＬＷ）を、移動開始時から移動完了時（支持位置Ｐ２への配置）まで覆い可能な構成とされるもので、バッグ本体４１の膨張完了時において乗員保護部４２と連通される上端側を、突出完了時（支持位置Ｐ２）の支持部材２６の先端２６ｂより上方であって、支持部材２６の先端２６ｂの移動軌跡より上方に位置させるように、構成されている（図１３参照）。 The cover portion 44 is configured to cover the impact force acting side (left side LW) of the support member 26 from the start of movement to the completion of movement (arrangement at the support position P2). The upper end side communicated with the occupant protection part 42 at the time of completion is positioned above the tip 26b of the support member 26 at the time of completion of projection (support position P2) and above the movement locus of the tip 26b of the support member 26. (See FIG. 13).

また、実施形態のバッグ本体４１では、乗員保護部４２においてカバー部４４より上方に位置する上側部位４２ａと、乗員保護部４２においてカバー部４４の右側に配置される下側部位４２ｂと、カバー部４４と、の内部に、それぞれ、膨張完了時の厚さを規制する厚さ規制部材４５，４６，４７が、配置されている。各厚さ規制部材４５，４６，４７は、可撓性を有した帯状の織布から形成されて、側方から見て略半円弧状となるように、配置されている。乗員保護部４２における上側部位４２ａの領域内に配置される厚さ規制部材４５は、両縁側を、それぞれ、外右側壁部４１ａと外左側壁部４１ｂとに縫着させて、上側部位４２ａの膨張完了時の厚さを規制している。乗員保護部４２における下側部位４２ｂの領域内に配置される厚さ規制部材４６は、側方から見てカバー部４４に配置される厚さ規制部材４７と配置位置を一致させて構成されるもので、両縁側を、それぞれ、外右側壁部４１ａと内右側壁部４１ｃとに縫着させて、下側部位４２ｂの膨張完了時の厚さを規制している。カバー部４４の領域内に配置される厚さ規制部材４７は、両縁側を、それぞれ、外左側壁部４１ｂと内左側壁部４１ｄに縫着させて、カバー部４４の膨張完了時の厚さを規制している。なお、実施形態の場合、カバー部４４は、膨張完了時の厚さ寸法を、乗員保護部４２の厚さ寸法より小さくするように、構成されている。 In the bag body 41 of the embodiment, the occupant protection part 42 has an upper part 42a positioned above the cover part 44, the occupant protection part 42 has a lower part 42b disposed on the right side of the cover part 44, and a cover part. 44, thickness regulating members 45, 46, 47 for regulating the thickness at the time of completion of expansion are respectively arranged. Each thickness regulating member 45, 46, 47 is formed of a flexible belt-like woven fabric and is arranged so as to have a substantially semicircular arc shape when viewed from the side. The thickness regulating member 45 disposed in the region of the upper part 42a in the occupant protection part 42 has both edge sides sewn to the outer right side wall part 41a and the outer left side wall part 41b, respectively. The thickness at the completion of expansion is regulated. The thickness restricting member 46 disposed in the region of the lower portion 42b in the occupant protection portion 42 is configured such that the disposition position coincides with the thickness restricting member 47 disposed in the cover portion 44 when viewed from the side. Therefore, both edge sides are respectively sewn to the outer right side wall part 41a and the inner right side wall part 41c to regulate the thickness of the lower part 42b when the expansion is completed. The thickness regulating member 47 arranged in the region of the cover part 44 is sewn to the outer left side wall part 41b and the inner left side wall part 41d, respectively, so that the thickness when the cover part 44 is completely expanded is secured. Is regulated. In the case of the embodiment, the cover part 44 is configured so that the thickness dimension at the completion of the inflation is smaller than the thickness dimension of the occupant protection part 42.

エアバッグ４０をこのような構成とすれば、支持部材２６の突出完了時に、支持部材２６の衝撃力作用側（左側ＬＷ）が、図１３〜１５に示すように、内部に膨張用ガスを流入させて膨張しているカバー部４４により覆われることから、近接側座席（助手席ＰＳ）に近接側乗員が着座している場合、膨張部位（カバー部４４）を介在させて、支持部材２６が近接側乗員と干渉することを、一層、抑制することができる。 If the airbag 40 is configured as described above, when the support member 26 is completely projected, the impact force acting side (left side LW) of the support member 26 flows the inflation gas into the interior as shown in FIGS. Since the cover member 44 is covered with the cover portion 44 that is inflated, when the close-side occupant is seated in the close-side seat (passenger seat PS), the support member 26 is interposed via the expansion portion (cover portion 44). Interference with the close side occupant can be further suppressed.

なお、実施形態では、助手席の側方（左側）からの側面衝突時に、離隔側座席としての運転席に着座した運転者を、離隔側乗員として保護するエアバッグ装置を例に採り説明したが、勿論、運転席の側方（右側）からの側面衝突時に、離隔側座席としての助手席に着座した乗員を、離隔側乗員として保護する装置に、本発明を適用してもよい。さらには、本発明のエアバッグ装置は、車両の前席に着座した乗員を保護する装置に限られるものではなく、車両の後席に着座した乗員を保護するように構成してもよく、また、前後方向に沿って並設される座席を備える車両にも、適用可能である。 In the embodiment, the airbag apparatus that protects the driver seated in the driver's seat as the separation side seat as a separation side occupant at the time of a side collision from the side (left side) of the passenger seat has been described as an example. Of course, the present invention may be applied to a device that protects an occupant seated in a passenger seat as a separated side seat as a separated side occupant during a side collision from the side (right side) of the driver's seat. Furthermore, the airbag device of the present invention is not limited to a device that protects an occupant seated in the front seat of the vehicle, and may be configured to protect an occupant seated in the back seat of the vehicle. The present invention can also be applied to a vehicle including seats arranged side by side in the front-rear direction.

２…背もたれ部、３…シートフレーム、１０…インフレーター、１６，４０…エアバッグ、１７，４１…バッグ本体、２３…カバー部材、２６…支持部材、４４…カバー部、ＤＰ…運転者（離隔側乗員）、ＤＳ…運転席（離隔側座席）、ＬＷ…左側（衝撃力作用側）、ＲＷ…右側（離隔側）、Ｍ…エアバッグ装置。 2 ... backrest part, 3 ... seat frame, 10 ... inflator, 16, 40 ... airbag, 17, 41 ... bag body, 23 ... cover member, 26 ... support member, 44 ... cover part, DP ... driver (remote side) Occupant), DS ... driver seat (separated side seat), LW ... left side (impact force acting side), RW ... right side (separated side), M ... airbag device.

Claims

複数の座席を並設させて構成される車両に搭載されて、該座席の並設方向の一方側からの衝撃力の作用時に、衝撃力作用側から遠い離隔側座席に着座した離隔側乗員を保護可能な構成のエアバッグ装置であって、
前記離隔側座席の背もたれ部内に折り畳まれて収納されるとともに、内部に膨張用ガスを流入させて前記離隔側乗員の衝撃力作用側を覆うように展開膨張するエアバッグと、
前記背もたれ部内に収納されるとともに、展開膨張する前記エアバッグを駆動源として突出し、膨張完了時の前記エアバッグにおける衝撃力作用側を支持可能な支持部材と、
前記支持部材の突出移動開始時から突出移動完了時までの前記支持部材の衝撃力作用側を、覆い可能として、前記エアバッグに配設される可撓性を有したカバー部材と、
を備え、
前記カバー部材が、内部に膨張用ガスを流入させて膨張する前記エアバッグの一部の部位から構成されていることを特徴とするエアバッグ装置。 A remote-side occupant mounted on a vehicle configured by arranging a plurality of seats and seated on a remote-side seat far from the impact force application side when an impact force is applied from one side in the side-by-side direction of the seats. An airbag device having a protectable configuration,
An airbag that is folded and housed in a backrest portion of the separate side seat, and inflated and inflated so as to cover the impact force acting side of the separate side occupant by flowing an inflating gas into the interior;
A support member that is housed in the backrest portion, protrudes using the airbag that is deployed and inflated as a drive source, and that can support an impact force acting side in the airbag when the inflation is completed;
A flexible cover member disposed on the airbag, capable of covering the impact force acting side of the support member from the start of the protrusion movement of the support member to the completion of the protrusion movement;
With
The airbag device according to claim 1, wherein the cover member includes a portion of the airbag that is inflated by inflating an inflating gas.

複数の座席を並設させて構成される車両に搭載されて、該座席の並設方向の一方側からの衝撃力の作用時に、衝撃力作用側から遠い離隔側座席に着座した離隔側乗員を保護可能な構成のエアバッグ装置であって、
前記離隔側座席の背もたれ部内に折り畳まれて収納されるとともに、内部に膨張用ガスを流入させて前記離隔側乗員の衝撃力作用側を覆うように展開膨張するエアバッグと、
前記背もたれ部内に収納されるとともに、展開膨張する前記エアバッグを駆動源として突出し、膨張完了時の前記エアバッグにおける衝撃力作用側を支持可能な支持部材と、
前記支持部材の突出移動開始時から突出移動完了時までの前記支持部材の衝撃力作用側を、覆い可能として、前記エアバッグに配設される可撓性を有したカバー部材と、
を備え、
前記支持部材が、前記背もたれ部内への収納時における上端となる先端側を、前記背もたれ部から突出させるように、前記背もたれ部内への収納時における下端となる元部側を、前記背もたれ部側に対して回動可能に、取り付けられる構成として、
前記エアバッグが、バッグ本体と、前記支持部材と連結されるテザーと、を備える構成とされ、
該テザーが、元部側を前記バッグ本体における膨張完了時の前縁において上下の中央よりやや下方となる位置に連結され、先端側を前記支持部材の先端側に連結されて、前記バッグ本体の展開膨張時に、前記背もたれ部から前方に突出するように膨張する前記バッグ本体の膨張に伴って、前記支持部材の先端側を突出させる構成とされ、
前記カバー部材が、前記バッグ本体の外周壁に連結されるシート体から構成されるとともに、膨張完了時の前記バッグ本体の下半分程度の領域を覆い可能として、上縁を、突出完了時の前記支持部材の先端より上方に位置させるように、構成され、
前記カバー部材の前記上縁が、前記エアバッグの膨張完了時に、後端を上方に向けるように前後方向に対して傾斜して、配置される構成とされていることを特徴とするエアバッグ装置。 A remote-side occupant mounted on a vehicle configured by arranging a plurality of seats and seated on a remote-side seat far from the impact force application side when an impact force is applied from one side in the side-by-side direction of the seats. An airbag device having a protectable configuration,
An airbag that is folded and housed in a backrest portion of the separate side seat, and inflated and inflated so as to cover the impact force acting side of the separate side occupant by flowing an inflating gas into the interior;
A support member that is housed in the backrest portion, protrudes using the airbag that is deployed and inflated as a drive source, and that can support an impact force acting side in the airbag when the inflation is completed;
A flexible cover member disposed on the airbag, capable of covering the impact force acting side of the support member from the start of the protrusion movement of the support member to the completion of the protrusion movement;
With
The base side, which is the lower end when housed in the backrest portion, is placed on the backrest side so that the support member projects the tip end side, which is the upper end when housed in the backrest portion, from the backrest portion. As a configuration that can be pivotally attached to,
The airbag is configured to include a bag body and a tether connected to the support member,
The tether is connected to a position where the base side is slightly below the center of the top and bottom at the front edge when the bag body is completely inflated, and the tip side is connected to the tip side of the support member. When the bag body expands so as to protrude forward from the backrest portion when deployed and inflated, the distal end side of the support member protrudes.
The cover member is composed of a sheet body connected to the outer peripheral wall of the bag body, and can cover an area of the lower half of the bag body when the inflation is completed, Configured to be positioned above the tip of the support member;
The airbag device is characterized in that the upper edge of the cover member is arranged so as to be inclined with respect to the front-rear direction so that the rear end faces upward when the inflation of the airbag is completed. .

前記支持部材が、金属製とされるとともに、外表面側に、合成樹脂製若しくはゴム製の保護層を配置させていることを特徴とする請求項１または２に記載のエアバッグ装置。 The airbag device according to claim 1 or 2 , wherein the support member is made of metal, and a protective layer made of synthetic resin or rubber is disposed on the outer surface side.