JP6156187B2 - Crew protection device - Google Patents

Crew protection device Download PDF

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JP6156187B2
JP6156187B2 JP2014034498A JP2014034498A JP6156187B2 JP 6156187 B2 JP6156187 B2 JP 6156187B2 JP 2014034498 A JP2014034498 A JP 2014034498A JP 2014034498 A JP2014034498 A JP 2014034498A JP 6156187 B2 JP6156187 B2 JP 6156187B2
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郁雄 山田
郁雄 山田
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Toyoda Gosei Co Ltd
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本発明は、運転席用エアバッグと、助手席用エアバッグと、運転席用エアバッグと助手席用エアバッグとの間に膨張する中央エアバッグと、を備える構成の乗員保護装置に関する。   The present invention relates to an occupant protection device including a driver seat airbag, a passenger seat airbag, and a central airbag that is inflated between a driver seat airbag and a passenger seat airbag.

従来、運転席用エアバッグと助手席用エアバッグとの間に中央エアバッグを膨張させる構成の乗員保護装置としては、中央エアバッグが、運転席用エアバッグと助手席用エアバッグとの間の空間を埋めるように上下方向に沿って配置される部位と、運転席用エアバッグと助手席用エアバッグとの上側に配置されるように左右方向に沿って配置される部位と、を備えて、車両後方側から見て略T字形状とされる構成のものがあった(例えば、特許文献1,2参照)。   Conventionally, as a passenger protection device configured to inflate a central airbag between a driver airbag and a passenger airbag, the central airbag is provided between the driver airbag and the passenger airbag. A portion arranged along the vertical direction so as to fill the space, and a portion arranged along the left-right direction so as to be arranged above the driver airbag and the passenger airbag. In addition, there is a configuration that is substantially T-shaped when viewed from the vehicle rear side (see, for example, Patent Documents 1 and 2).

特開2011−51512公報JP 2011-51512 A 特開2011−51513公報JP 2011-51513 A

この従来の乗員保護装置では、中央エアバッグは、車両のインストルメントパネルと、フロントウィンドと、の後方側(車内側)を覆うように、膨張を完了させるもので、車両の衝突時に、乗員のインストルメントパネルやフロントウィンドとの干渉を抑制していた。しかしながら、この従来の乗員保護装置では、中央エアバッグは、膨張完了時に上下方向に略沿って配置される下側の領域を、膨張を完了させた運転席用エアバッグと助手席用エアバッグとの間に配置させる構成であるものの、運転席用エアバッグ及び助手席用エアバッグとの間に隙間を空けて膨張させる構成としていた。そのため、この従来の乗員保護装置では、車両が斜め衝突やオフセット衝突等して、運転席若しくは助手席に着座した乗員(前席乗員)が左右方向の中央側でかつ前方となる斜め前方側に向かって移動する場合、乗員を、中央エアバッグで的確に受け止められない場合があった。   In this conventional occupant protection device, the central airbag completes inflating so as to cover the rear side (inside the vehicle) of the vehicle instrument panel and the front window. Interference with the instrument panel and windshield was suppressed. However, in this conventional occupant protection device, the central airbag has a lower region disposed substantially along the vertical direction when inflation is completed, and a driver airbag and a passenger airbag that have completed inflation. However, it is configured to be inflated with a gap between the driver airbag and the passenger airbag. For this reason, in this conventional occupant protection device, the occupant (front occupant) seated in the driver's seat or front passenger seat is on the diagonally forward side, which is the center side in the left-right direction and forward, due to an oblique collision or offset collision. When moving toward the passenger, the passenger may not be accurately received by the central airbag.

本発明は、上述の課題を解決するものであり、車両の左右方向の中央側でかつ前方となる斜め前方側に向かって移動する乗員を、円滑に保護可能な乗員保護装置を提供することを目的とする。   This invention solves the above-mentioned subject, and provides the passenger | crew protection apparatus which can protect smoothly the passenger | crew who moves toward the diagonally forward side which becomes the center side of the left-right direction of a vehicle, and the front. Objective.

本発明に係る乗員保護装置は、車両の運転席若しくは助手席に着座した乗員を保護可能として、
運転席の前方に配置されるステアリングホイールの上面側を覆うように膨張する運転席用エアバッグと、助手席の前方においてインストルメントパネルから後方に突出するように膨張する助手席用エアバッグと、運転席と助手席との間の領域において運転席用エアバッグと助手席用エアバッグとの間に膨張する中央エアバッグと、を備える構成の乗員保護装置であって、
中央エアバッグは、膨張完了時に、運転席用エアバッグ及び助手席用エアバッグより後方に突出して、車両の衝突時に、左右方向の中央側に移動する乗員を受け止め可能に、構成されるもので、
膨張完了時の左右の側方を、膨張を完了させた運転席用エアバッグと助手席用エアバッグとに近接若しくは接触させるとともに、膨張を完了させた運転席用エアバッグの前側に張り出すように配置される張出膨張部を備え、膨張完了時の後面側に、乗員の上半身を受け止め可能な上半身受止部を、備える構成とされていることを特徴とする。
The occupant protection device according to the present invention can protect an occupant seated in a driver seat or a passenger seat of a vehicle,
A driver's seat airbag that inflates so as to cover the upper surface side of the steering wheel disposed in front of the driver's seat, and a passenger's seat airbag that expands so as to protrude rearward from the instrument panel in front of the passenger seat; A central airbag that inflates between the driver airbag and the passenger airbag in the region between the driver seat and the passenger seat,
The central airbag is configured to protrude rearward from the driver airbag and the passenger airbag when the inflation is completed, and to be able to receive an occupant moving to the center in the left-right direction when the vehicle collides. ,
The left and right sides at the time of completion of inflation are brought close to or in contact with the inflated driver's seat airbag and the passenger's airbag, and are projected to the front side of the inflated driver's seat airbag. And an upper body receiving part capable of receiving the upper body of the occupant on the rear surface side when the inflation is completed.

本発明の乗員保護装置では、作動時に、運転席用エアバッグ、助手席用エアバッグ、及び、中央エアバッグの膨張完了時において、運転席若しくは助手席に着座した乗員が、左右方向の中央側でかつ前方となる斜め前方側に向かって移動すると、この乗員を、中央エアバッグの後面側の部位により受け止めることとなるが、中央エアバッグは、左右の側方を、運転席用エアバッグと助手席用エアバッグとに近接若しくは接触させていることから、乗員からすり抜けるように左右に移動することを抑制されて、後面側の上半身受止部により、乗員の上半身を、受け止めることができる。そして、本発明の乗員保護装置では、中央エアバッグは、膨張完了時に運転席用エアバッグ及び助手席用エアバッグよりも後方に突出して配置され、換言すれば、上半身受止部は、膨張完了時に運転席用エアバッグ及び助手席用エアバッグよりも後方に突出した位置に配置されることから、乗員は、肩を上半身受止部に拘束された状態で、頭部を、上半身受止部と、運転席用エアバッグ若しくは助手席用エアバッグと、の間の隙間に進入させつつ、上半身受止部に受け止められて、頭部を拘束されることとなる。   In the occupant protection device according to the present invention, the driver seat airbag, the passenger seat airbag, and the occupant seated on the driver seat or the passenger seat when the inflation of the center airbag is completed are When the vehicle moves toward the front side, which is the front side, the occupant is received by the rear side portion of the central airbag. Since it is in close proximity to or in contact with the passenger airbag, it can be prevented from moving left and right so as to pass through the occupant, and the upper body receiving part of the occupant can receive the upper body of the occupant. In the occupant protection device of the present invention, the central airbag is arranged to protrude rearward from the driver airbag and the passenger airbag when the inflation is completed, in other words, the upper body receiving portion is completely inflated. Since it is sometimes arranged at a position protruding rearward from the driver airbag and the passenger airbag, the occupant holds the head in the upper body receiving part with the shoulder restrained by the upper body receiving part. Then, the head is restrained by being received by the upper body receiving portion while entering the gap between the driver airbag or the passenger airbag.

また、中央エアバッグは、膨張を完了させた運転席用エアバッグの前側に張り出すように配置される張出膨張部を備える構成であることから、仮に、中央エアバッグが、上半身受止部によって運転席に着座した乗員(運転者)を受け止めた際に、運転席から離れるように移動した場合や、運転者を受け止めた運転席用エアバッグが中央エアバッグから離れるように移動した場合にも、中央エアバッグと運転席用エアバッグとの間の隙間に進入しつつ、斜め前方に向かって移動する運転者が、運転席用エアバッグと中央エアバッグとの間からすり抜けるように移動することを抑制でき、運転席用エアバッグの前側に張り出している張出膨張部によって、運転者の上半身を的確に受け止めることができる。ちなみに、中央エアバッグが、上半身受止部によって助手席に着座した乗員(助手席搭載者)を受け止めた際に、助手席から離れるように移動した場合には、中央エアバッグは、運転席用エアバッグやステアリングホイールに支持されることとなって、助手席用エアバッグとの間に大きな隙間を生じさせるように移動することを抑制できるため、斜め前方に向かって移動する助手席搭載者を、運転席用エアバッグやステアリングホイールに支持された中央エアバッグの上半身受止部によって、的確に受け止めることができる。その結果、本発明の乗員保護装置では、斜め衝突時やオフセット衝突時に、左右方向の中央側でかつ前方となる斜め前方側に向かって移動する乗員の上半身を、運転席用エアバッグと助手席用エアバッグとの間に配置されるように膨張する中央エアバッグによって、円滑に拘束することができる。   In addition, since the central airbag is configured to include an overhanging inflating portion that is disposed so as to overhang the front side of the airbag for the driver's seat that has been inflated, the central airbag is assumed to be an upper body receiving portion. When the passenger (driver) seated in the driver's seat is received, the driver's seat airbag that has received the driver moves away from the central airbag. However, the driver who moves obliquely forward while entering the gap between the central airbag and the driver airbag moves so as to slip through between the driver airbag and the central airbag. This can be suppressed, and the upper body of the driver can be accurately received by the overhanging inflating portion that projects to the front side of the driver airbag. By the way, if the central airbag moves away from the passenger seat when the passenger (passenger seat passenger) seated on the passenger seat is received by the upper body receiving part, the central airbag is used for the driver seat. Since it is supported by the airbag and the steering wheel and can be prevented from moving so as to generate a large gap between the airbag for the passenger seat, It can be accurately received by the upper body receiving portion of the central airbag supported by the driver airbag or the steering wheel. As a result, in the occupant protection device of the present invention, at the time of an oblique collision or an offset collision, the upper body of the occupant moving toward the obliquely forward side, which is the center side in the left-right direction, and the front, the driver airbag and the passenger seat It can be restrained smoothly by the central airbag that is inflated so as to be disposed between the air bag.

したがって、本発明の乗員保護装置では、車両の左右方向の中央側でかつ前方となる斜め前方側に向かって移動する乗員を、円滑に保護することができる。   Therefore, in the occupant protection device of the present invention, it is possible to smoothly protect the occupant moving toward the oblique front side, which is the center side in the left-right direction of the vehicle and forward.

また、本発明の乗員保護装置において、上半身受止部に、中央エアバッグの膨張完了時に、運転席側の下部側に、左右方向側の外方に張り出すように形成される運転席側膨出部を、配置させる構成とすれば、この運転席側膨出部が、斜め前方側に向かって移動する運転者の腰部を的確に拘束することができ、腰部を拘束された状態で、運転者の頭部が上半身受止部における上側の領域に受け止められることから、上半身受止部によって、運転者の上半身を、一層的確に受け止めることが可能となって、好ましい。   Further, in the occupant protection device of the present invention, the driver's seat side inflation formed on the upper body receiving portion is formed to project outward in the left-right direction on the lower side of the driver's seat when the central airbag is completely inflated. If the protruding portion is configured to be arranged, the driver's seat side bulging portion can accurately restrain the driver's waist that moves diagonally forward, and the driver can drive while the waist is restrained. Since the person's head is received by the upper region of the upper body receiving part, the upper body receiving part is preferable because the upper body of the driver can be received more accurately.

さらに、上記構成の乗員保護装置において、上半身受止部に、中央エアバッグの膨張完了時に、助手席側の下部側に、左右方向側の外方に張り出すように形成される助手席側膨出部を、配置させる構成とすれば、この助手席側膨出部が、斜め前方に向かって移動する助手席搭載者の腰部を的確に拘束することができ、腰部を拘束された状態で、助手席搭載者の頭部が、上半身受止部における上側の領域に受け止められることから、上半身受止部によって、助手席搭載者の上半身を、一層的確に受け止めることが可能となって、好ましい。   Further, in the occupant protection device having the above-described configuration, the passenger seat side inflation formed on the upper body receiving portion is formed to project outward in the left-right direction on the lower side of the passenger seat side when the inflation of the central airbag is completed. If the extension part is configured to be arranged, the passenger seat side bulge part can accurately restrain the waist part of the passenger seat mounter moving obliquely forward, and the waist part is restrained. Since the head of the passenger seat mounter is received by the upper region of the upper body receiving portion, the upper body receiving portion can receive the upper body of the passenger seat mounter more accurately, which is preferable.

さらにまた、上記構成の乗員保護装置において、中央エアバッグ内に、張出膨張部を形成するためのテザーや、運転席側膨出部を形成するためのテザーを配置させる構成とすれば、中央エアバッグの膨張完了形状を安定させることができ、また、運転席用エアバッグと助手席用エアバッグとの左右方向側で重なる領域に、左右方向で対向する壁部相互の離隔距離を規制する規制テザーを、配設させる構成とすれば、中央エアバッグが運転席用エアバッグや助手席用エアバッグに対して強く干渉することを抑制できることから、運転席用エアバッグ、助手席用エアバッグ、及び、中央エアバッグの膨張完了形状を安定させることができて、好ましい。   Furthermore, in the occupant protection device having the above-described configuration, if the tether for forming the overhanging inflating portion and the tether for forming the driver side inflating portion are arranged in the central airbag, The inflated complete shape of the airbag can be stabilized, and the separation distance between the walls facing each other in the left-right direction is restricted to the region where the driver-side airbag and the passenger-side airbag overlap in the left-right direction. If the restriction tether is arranged, it is possible to suppress the central airbag from strongly interfering with the driver airbag and the passenger airbag, so that the driver airbag and the passenger airbag are provided. And it is possible to stabilize the expansion completion shape of the central airbag, which is preferable.

本発明の一実施形態である乗員保護装置の各エアバッグを説明する概略平面図である。1 is a schematic plan view illustrating each airbag of an occupant protection device according to an embodiment of the present invention. 実施形態の乗員保護装置の各エアバッグを説明する概略正面図である。It is a schematic front view explaining each airbag of the passenger protection device of an embodiment. 実施形態の乗員保護装置において用いられる中央エアバッグを単体で膨張させた状態を前方側から見た概略斜視図である。It is the outline perspective view which looked at the state where the central airbag used in the crew member protection device of an embodiment was inflated alone from the front side. 図3の中央エアバッグを単体で膨張させた状態を後方側から見た概略斜視図である。It is the schematic perspective view which looked at the state which expanded the center airbag of FIG. 3 alone from the back side. 図3の中央エアバッグの前後方向に沿った概略横断面図である。FIG. 4 is a schematic cross-sectional view along the front-rear direction of the central airbag in FIG. 3. 図3の中央エアバッグにおいて、後側部位の左右方向に沿った概略縦断面図である。FIG. 4 is a schematic vertical cross-sectional view along the left-right direction of the rear portion in the central airbag of FIG. 3. 実施形態の乗員保護装置において、各エアバッグが膨張を完了させた状態を示す概略平面図である。It is a schematic plan view which shows the state which each airbag completed the expansion | swelling in the passenger | crew protection apparatus of embodiment. 実施形態の乗員保護装置において、各エアバッグが膨張を完了させた状態を示す概略正面図である。In an occupant protection device of an embodiment, it is a schematic front view showing the state where each air bag completed inflation. 実施形態の乗員保護装置において、各エアバッグが膨張を完了させた状態を示す概略側面図である。In an occupant protection device of an embodiment, it is an outline side view showing the state where each air bag completed inflation. 実施形態の乗員保護装置において、各エアバッグが膨張を完了させた際に中央エアバッグが助手席側にずれた状態を示す部分拡大概略平面図である。FIG. 5 is a partially enlarged schematic plan view showing a state in which the central airbag is displaced to the passenger seat side when each airbag is completely inflated in the occupant protection device of the embodiment. 他の実施形態の乗員保護装置において、各エアバッグが膨張を完了させた状態を示す概略平面図である。In an occupant protection device of other embodiments, it is a schematic plan view showing the state where each air bag completed inflation.

以下、本発明の一実施形態を図面に基づいて説明すると、実施形態の乗員保護装置Sは、図1に示すように、運転席用エアバッグ装置18、助手席用エアバッグ装置25、及び、中央エアバッグ装置30を、備えて構成されている。   Hereinafter, an embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, an occupant protection device S according to an embodiment includes a driver seat airbag device 18, a passenger seat airbag device 25, and A central airbag device 30 is provided.

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Vの前後・上下・左右の方向と一致するものである。   In the embodiment, the front-rear, up-down, left-right directions are the same as the front-rear, up-down, left-right directions of the vehicle V unless otherwise specified.

運転席用エアバッグ装置18は、図1,2に示すように、ステアリング装置8のステアリングホイール9の中央のボス部10に、搭載されている。ステアリングホイール9は、運転席13の前方に配置されて、リング部11を把持して所定方向に回転させることにより、車両Vを操舵可能に構成されている。助手席用エアバッグ装置25は、図1,2に示すように、インストルメントパネル(以下、単に「インパネ」と省略する)1における助手席14の前方側の領域(助手席側部4)に、搭載されている。これらの運転席用エアバッグ装置18と助手席用エアバッグ装置25とは、実施形態の場合、車両Vの前面衝突、斜め衝突、オフセット衝突、さらには、側面衝突の際に、作動して、運転席用エアバッグ19と助手席用エアバッグ26とを展開膨張させるように構成されている。   As shown in FIGS. 1 and 2, the driver's seat airbag device 18 is mounted on the boss portion 10 at the center of the steering wheel 9 of the steering device 8. The steering wheel 9 is arranged in front of the driver's seat 13 and is configured to be able to steer the vehicle V by gripping the ring portion 11 and rotating it in a predetermined direction. As shown in FIGS. 1 and 2, the passenger seat airbag device 25 is provided in a region (passenger seat side portion 4) on the front side of the passenger seat 14 in the instrument panel (hereinafter simply referred to as “instrument panel”) 1. Mounted. In the case of the embodiment, the driver seat airbag device 18 and the passenger seat airbag device 25 operate in the case of a frontal collision, an oblique collision, an offset collision, and a side collision of the vehicle V. The driver seat airbag 19 and the passenger seat airbag 26 are configured to be deployed and inflated.

運転席用エアバッグ19は、可撓性を有したシート体から形成される袋状として、ステアリングホイール9のボス部10に折り畳まれて収納されるもので、運転席用エアバッグ装置18の作動時に、前方移動する乗員Mとしての運転者MDの上半身(胸、腹、頭部等)を受け止め可能に、図示しないインフレーターからの膨張用ガスを内部に流入させて、ボス部10から後方に突出するように展開することとなる。運転席用エアバッグ19は、膨張完了時の形状を、図1,2,7〜9に示すように、リング部11より外径寸法を大きくした略円板状としている。運転席用エアバッグ19は、外形形状を同形状とした円形状の運転席側壁部20と車体側壁部21との外周縁相互を結合させて構成され、膨張完了時に、前面側の車体側壁部21をリング部11に支持させる構成とされている(図1,2,7,8参照)。   The driver's seat airbag 19 is a bag formed from a flexible sheet body, and is folded and stored in the boss portion 10 of the steering wheel 9, so that the driver's seat airbag device 18 operates. Occasionally, the upper body (chest, abdomen, head, etc.) of the driver MD as the occupant M moving forward can be received, and an inflating gas from an inflator (not shown) is caused to flow into the interior and protrude rearward from the boss part 10. Will be deployed. The air bag 19 for the driver's seat has a substantially disk shape whose outer diameter is larger than that of the ring portion 11, as shown in FIGS. The driver-seat airbag 19 is configured by joining the outer peripheral edges of a circular driver-seat side wall portion 20 and a vehicle body side wall portion 21 having the same outer shape. 21 is configured to be supported by the ring portion 11 (see FIGS. 1, 2, 7, and 8).

助手席用エアバッグ26は、可撓性を有したシート体から形成される袋状として、インパネ1の助手席側部4に折り畳まれて収納されるもので、助手席用エアバッグ装置25の作動時に、前方移動する乗員Mとしての助手席搭載者MPの上半身(胸、腹、頭部等)を受け止め可能に、図示しないインフレーターからの膨張用ガスを内部に流入させて、インパネ1の助手席側部4から後方に突出するように展開することとなる(図1,2,7〜9参照)。この助手席用エアバッグ26は、膨張完了時の形状を、後面側(助手席搭載者MP側)の略長方形状の乗員側壁部27を底壁として、前方に向かって収束されるような略四角錐形状として構成されている。詳細には、実施形態では、助手席用エアバッグ26の乗員側壁部27には、左右方向の中央に、上下方向に略沿って凹溝状として前方に凹むような凹部27aが、形成されている(図1,2,7,8参照)。なお、実施形態の場合、助手席用エアバッグ26は、膨張完了状態において、左右方向側から見た状態で、膨張を完了させた運転席用エアバッグ19よりもわずかに後方に突出するように、配置される(図9参照)。   The passenger seat airbag 26 is folded and stored in the passenger seat side portion 4 of the instrument panel 1 as a bag formed of a flexible sheet body. During operation, an inflating gas from an inflator (not shown) is introduced into the inside of the passenger seat MP as a passenger M that moves forward so that the upper body (chest, abdomen, head, etc.) can be received. It will expand | deploy so that it may protrude back from the seat side part 4 (refer FIG.1, 2,7-9). The airbag 26 for the passenger seat has a shape at the time when the inflation is completed so as to converge toward the front with the substantially rectangular occupant side wall portion 27 on the rear surface side (passenger seat mounter MP side) as the bottom wall. It is configured as a quadrangular pyramid shape. Specifically, in the embodiment, the occupant side wall 27 of the passenger seat airbag 26 is formed with a recess 27a that is recessed in the forward direction as a groove substantially along the vertical direction at the center in the left-right direction. (See FIGS. 1, 2, 7, and 8). In the case of the embodiment, the passenger-seat airbag 26 projects slightly rearward from the driver-seat airbag 19 that has been inflated when viewed from the left-right direction in the inflated state. Are arranged (see FIG. 9).

中央エアバッグ装置30は、図1,2,9に示すように、運転席用エアバッグ19と助手席用エアバッグ26との間に膨張する中央エアバッグ34と、中央エアバッグ34に膨張用ガスを供給するインフレーター32と、折り畳まれた中央エアバッグ34とインフレーター32とを収納させるケース31と、を備えて構成されている。中央エアバッグ装置30は、実施形態の場合、図1,2に示すように、運転席13と助手席14との間の領域の前方側であって、インパネ1におけるセンタークラスタ2の部位に、搭載されている。ケース31は、車両後方側を開口させた略直方体の箱形状として、図9に示すように、インパネ1におけるセンタークラスタ2の部位に搭載されている。   As shown in FIGS. 1, 2, and 9, the central airbag device 30 is inflated between a driver airbag 19 and a passenger airbag 26, and the central airbag 34 is inflated. An inflator 32 that supplies gas and a case 31 that stores the folded central airbag 34 and the inflator 32 are provided. In the case of the embodiment, as shown in FIGS. 1 and 2, the central airbag device 30 is on the front side of the region between the driver's seat 13 and the passenger seat 14, and in the center cluster 2 portion of the instrument panel 1, It is installed. As shown in FIG. 9, the case 31 is mounted on a portion of the center cluster 2 in the instrument panel 1 as a substantially rectangular parallelepiped box shape with the vehicle rear side opened.

インフレーター32は、運転席用エアバッグ装置18や助手席用エアバッグ装置25の図示しないインフレーターと同様に、車両Vの前面衝突、斜め衝突、オフセット衝突、さらには、側面衝突の際に、作動する構成とされて、作動時、折り畳まれた中央エアバッグ34に膨張用ガスを供給して、中央エアバッグ34を展開膨張させるように構成されている。実施形態の場合、インフレーター32としては、図9に示すように、外形形状を円板状としたディスクタイプのものが使用されている。このインフレーター32は、図示しないリテーナを使用して、中央エアバッグ34の後述する取付部35と連結されるとともに、ケース31に取り付けられる構成である。   The inflator 32 operates at the time of a frontal collision, an oblique collision, an offset collision, and a side collision of the vehicle V, similarly to the inflator (not shown) of the driver airbag apparatus 18 and the passenger airbag apparatus 25. It is configured, and is configured to supply the inflation gas to the folded central airbag 34 during operation to deploy and inflate the central airbag 34. In the case of the embodiment, as the inflator 32, as shown in FIG. 9, a disk type having an outer shape of a disk is used. The inflator 32 is configured to be attached to the case 31 while being connected to an attachment portion 35 described later of the central airbag 34 using a retainer (not shown).

中央エアバッグ34は、可撓性を有したシート体から形成される袋状として、図1,2,7,8に示すように、運転席用エアバッグ19と助手席用エアバッグ26との間に膨張する構成とされている。この中央エアバッグ34は、車両Vの斜め衝突や、オフセット衝突の際に、左右方向の中央側に移動してくる乗員M(運転者MD若しくは助手席搭載者MP)を受け止め可能に構成されている。実施形態の場合、中央エアバッグ34は、図3〜6に示すように、ケース31に取り付けられる取付部35と、取付部35から後方に延びるエアバッグ本体36と、を備えている。取付部35には、周縁にインフレーター32を取り付けるための円形に開口した取付孔35aが、形成されている(図3参照)。中央エアバッグ34は、膨張完了時に、エアバッグ本体36の下面の前端側を、インパネ1におけるセンタークラスタ2の後面2aに当接させて、センタークラスタ2に支持される構成である(図9参照)。   As shown in FIGS. 1, 2, 7, and 8, the central airbag 34 is formed as a bag formed of a flexible sheet body, and includes a driver seat airbag 19 and a passenger seat airbag 26. It is set as the structure expand | swelled in between. The central airbag 34 is configured to receive an occupant M (driver MD or front passenger seat MP) that moves to the center in the left-right direction in the event of an oblique collision or offset collision of the vehicle V. Yes. In the case of the embodiment, as shown in FIGS. 3 to 6, the central airbag 34 includes an attachment portion 35 attached to the case 31 and an airbag body 36 extending rearward from the attachment portion 35. The attachment portion 35 is formed with a circular attachment hole 35a for attaching the inflator 32 to the periphery (see FIG. 3). The central airbag 34 is configured to be supported by the center cluster 2 by bringing the front end side of the lower surface of the airbag body 36 into contact with the rear surface 2a of the center cluster 2 in the instrument panel 1 when the inflation is completed (see FIG. 9). ).

また、中央エアバッグ34のエアバッグ本体36は、図7に示すように、膨張完了時に前後の中間となる中央側部位42を、膨張を完了させた運転席用エアバッグ19と助手席用エアバッグ26との間に配置させ、この中央側部位42の後側に連なるように配置される後側部位44を、運転席用エアバッグ19及び助手席用エアバッグ26より後方に突出させ、中央側部位42の前側において取付部35から連なるように形成される前側部位37を、膨張完了時に、インパネ1のセンタークラスタ2の後面2aに支持させるように、構成されている。中央側部位42は、中央エアバッグ34の膨張完了時に、左右の側方を、膨張を完了させた運転席用エアバッグ19と助手席用エアバッグ26とに圧接されるように、構成されている。前側部位37は、膨張完了時の下端側前面側に、インパネ1のセンタークラスタ2の後面2aに支持される支持部40(図9参照)を、備えるとともに、図7,8に示すように、膨張を完了させた運転席用エアバッグ19の前側に張り出すように配置される張出膨張部38を、備える構成とされている。後側部位44は、膨張完了時に、図7,9に示すように、運転席用エアバッグ19及び助手席用エアバッグ26より後方に突出するように構成され、膨張完了時の後面側に、乗員Mの上半身MUを受け止め可能な上半身受止部46を、配置させている。   Further, as shown in FIG. 7, the airbag main body 36 of the central airbag 34 includes a driver-side airbag 19 and a passenger-seat airbag that have been inflated at a central portion 42 that is an intermediate between the front and the rear when the inflation is completed. A rear portion 44 disposed between the bag 26 and the rear portion of the central portion 42 is protruded rearward from the driver airbag 19 and the passenger airbag 26, so that the center The front part 37 formed so as to continue from the attachment part 35 on the front side of the side part 42 is configured to be supported on the rear surface 2a of the center cluster 2 of the instrument panel 1 when the expansion is completed. The central portion 42 is configured such that when the inflation of the central airbag 34 is completed, the left and right sides are pressed against the driver airbag 19 and the passenger airbag 26 that have completed the inflation. Yes. The front side portion 37 is provided with a support portion 40 (see FIG. 9) supported on the rear surface 2a of the center cluster 2 of the instrument panel 1 on the front side on the lower end side when the expansion is completed, as shown in FIGS. It is configured to include an overhanging inflating portion 38 that is arranged to overhang the front side of the driver seat airbag 19 that has been inflated. The rear portion 44 is configured to protrude rearward from the driver seat airbag 19 and the passenger seat airbag 26 when the inflation is completed, as shown in FIGS. An upper body receiving portion 46 capable of receiving the upper body MU of the occupant M is disposed.

前側部位37は、図3に示すように、取付部35から連なって後上方に向かって拡開されるように、膨張完了時の外形形状を、軸方向を左右方向に略沿わせた略三角柱状として構成されるもので、膨張完了時の左右方向側の幅寸法を、中央側部位42の左右方向の幅寸法より大きくして、中央側部位42よりも左方に張り出すように、構成されている。そして、この中央側部位42よりも左方に張り出している部位が、図7に示すように、膨張完了時に、膨張した運転席用エアバッグ19の前側に張り出すように配置される張出膨張部38を、構成している。実施形態の場合、張出膨張部38は、膨張完了時の後面38a側を、上側を前方に向けるように、上下方向に対して傾斜させて配置されている(図4,9参照)。また、実施形態の前側部位37内には、左右両端側を前側部位37に連結される2つの横テザー50,51と、横テザー50,51間に配置されて上下両端側を前側部位37に連結される縦テザー52と、が、前後方向に沿って並設されている(図3〜5参照)。これらの横テザー50,51と縦テザー52とは、膨張完了時の上下方向側と左右方向側の幅寸法を安定させて、張出膨張部38を、運転席用エアバッグ19の前側に安定して張り出させるために、配置されている。   As shown in FIG. 3, the front side portion 37 has a substantially triangular shape in which the outer shape at the time of completion of expansion is substantially aligned with the axial direction in the left-right direction so as to extend from the attachment portion 35 toward the rear upper side. It is configured as a columnar shape, and is configured so that the width dimension on the left and right side when expansion is completed is larger than the width dimension in the left and right direction of the central side part 42 and projects to the left of the central side part 42 Has been. Then, as shown in FIG. 7, the portion projecting leftward from the central portion 42 is disposed so as to project to the front side of the inflated driver's seat airbag 19 when the inflation is completed. The part 38 is configured. In the case of the embodiment, the overhanging expansion portion 38 is disposed such that the rear surface 38a side when the expansion is completed is inclined with respect to the vertical direction with the upper side facing forward (see FIGS. 4 and 9). Further, in the front part 37 of the embodiment, two lateral tethers 50 and 51 that are connected to the front part 37 on both right and left ends, and the upper and lower ends are arranged on the front part 37 between the horizontal tethers 50 and 51. The connected vertical tethers 52 are juxtaposed along the front-rear direction (see FIGS. 3 to 5). The horizontal tethers 50 and 51 and the vertical tether 52 stabilize the width dimension on the vertical side and the horizontal side when the inflation is completed, so that the overhanging portion 38 is stabilized on the front side of the driver seat airbag 19. It is arranged to make it overhang.

中央側部位42は、膨張完了時に、運転席用エアバッグ19と助手席用エアバッグ26との間に、配置される部位である。実施形態では、中央エアバッグ34は、車両Vの前面衝突時にも、膨張する構成とされており、車両Vの前面衝突時には、膨張を完了させた運転席用エアバッグ19と助手席用エアバッグ26とによって、前進移動する運転者MDや助手席搭載者MPを保護することとなる。そのため、実施形態では、中央エアバッグ34のエアバッグ本体36において、膨張完了時の運転席用エアバッグ19と助手席用エアバッグ26と左右方向側で重なる領域に配置される中央側部位42は、左右方向側への突出を規制されて、運転席用エアバッグ19と助手席用エアバッグ26とを左右の外方へ押し出すことを抑制された状態で、運転席用エアバッグ19と助手席用エアバッグ26との間の隙間を埋めつつ膨張するように、構成されている。具体的には、中央側部位42内には、図3〜5に示すように、内部に、膨張完了時の左側壁42aと右側壁42bとの離隔距離を規制して、左側壁42aと右側壁42bとを連結する帯状の規制テザー54,55が、長手方向を左右方向に略沿わせるようにして、配置されている。実施形態の場合、規制テザー54は、図3,4に示すように、前側部位37との境界部位付近において、張出膨張部38の後面38aに略沿うように、短手方向を上下方向に対して傾斜させて配置され、規制テザー55は、規制テザー54の後側であって、中央側部位42の上下の略中央となる位置において、短手方向を前後方向に略沿わせるように、配置されている(図3〜5参照)。そして、実施形態の場合、中央側部位42は、膨張完了時に、この左側壁42aと右側壁42bとを、膨張を完了させた助手席用エアバッグ26と運転席用エアバッグ19とによって、圧接されることとなる。   The central portion 42 is a portion that is disposed between the driver seat airbag 19 and the passenger seat airbag 26 when the inflation is completed. In the embodiment, the central airbag 34 is configured to expand even when the vehicle V collides with the front of the vehicle V. When the vehicle V collides with the front, the driver's seat airbag 19 and the passenger's airbag that have completed the expansion. 26 protects the driver MD and the passenger seat mounter MP moving forward. Therefore, in the embodiment, in the airbag main body 36 of the central airbag 34, the central portion 42 disposed in a region where the driver's seat airbag 19 and the passenger's airbag 26 at the completion of the inflation overlap in the left-right direction side is The driver's seat airbag 19 and the passenger seat in a state in which the protrusion in the left-right direction is restricted and the driver seat airbag 19 and the passenger seat airbag 26 are prevented from being pushed outward to the left and right. The air bag 26 is configured to be inflated while filling a gap between the air bag 26 and the air bag 26. Specifically, as shown in FIGS. 3 to 5, inside the central portion 42, the separation distance between the left side wall 42 a and the right side wall 42 b at the time of completion of expansion is regulated inside, so that the left side wall 42 a and the right side Band-shaped regulation tethers 54 and 55 that connect the wall 42b are arranged so that the longitudinal direction is substantially along the left-right direction. In the case of the embodiment, as shown in FIGS. 3 and 4, the regulation tether 54 is arranged so that the short side direction is in the vertical direction so as to substantially follow the rear surface 38 a of the overhanging expansion portion 38 in the vicinity of the boundary portion with the front side portion 37. The regulation tether 55 is disposed behind the regulation tether 54 at a position that is substantially in the middle of the upper and lower sides of the central side portion 42 so that the short direction is substantially along the front-rear direction. Are arranged (see FIGS. 3 to 5). In the case of the embodiment, when the inflation is completed, the central side portion 42 is pressed against the left side wall 42a and the right side wall 42b by the passenger seat airbag 26 and the driver seat airbag 19 that have completed the inflation. Will be.

後側部位44は、膨張完了時の後面44c側の部位を、乗員Mの上半身MUを受け止め可能な上半身受止部46としており、膨張完了形状を、下端44b側の部位の左右方向側の幅寸法を、上端44a側の部位の左右方向側の幅寸法よりも大きくして、下端44b側を左右両側に張り出させるように、構成されている(図6,8参照)。すなわち、上半身受止部46は、運転席13側の下部側(左下端側)と、助手席14側の下部側(右下端側)と、に、それぞれ、左右方向側の外方(左方)に張り出すように形成される運転席側膨出部47と、左右方向の外方(右方)に張り出すように形成される助手席側膨出部48と、を備える構成とされている。これらの運転席側膨出部47と助手席側膨出部48とは、中央エアバッグ34の膨張完了時に、左右方向の中央側となる斜め前方に向かって移動してくる乗員Mの腰部を拘束するために、形成されている。また、後側部位44において、運転席側膨出部47及び助手席側膨出部48の上方となる上部側部位45の内部には、膨張完了時の左側壁45aと右側壁45bとの離隔距離を規制するように、左側壁45aと右側壁45bとを連結するテザー56が、配置されている(図3,4,6参照)。このテザー56は、膨張完了時における上部側部位45の左右方向側の幅寸法を規制して、上部側部位45の下側に配置される運転席側膨出部47及び助手席側膨出部48の左右方向側への膨出形状を安定させるために、配置されている。   The rear side portion 44 has a portion on the rear surface 44c side when the inflation is completed as an upper body receiving portion 46 that can receive the upper body MU of the occupant M, and the inflation completed shape has a width in the left-right direction of the portion on the lower end 44b side. The size is made larger than the width dimension on the left and right direction side of the portion on the upper end 44a side, and the lower end 44b side is projected to the left and right sides (see FIGS. 6 and 8). In other words, the upper body receiving portion 46 is provided on the lower side (left lower end side) on the driver's seat 13 side and on the lower side (right lower end side) on the passenger seat 14 side. ) And a passenger seat side bulging portion 48 formed so as to protrude outward (rightward) in the left-right direction. Yes. The driver seat side bulging portion 47 and the passenger seat side bulging portion 48 are configured to move the waist portion of the occupant M that moves obliquely forward, which is the central side in the left-right direction, when the central airbag 34 is completely inflated. Formed to constrain. Further, in the rear portion 44, the upper side portion 45 above the driver seat side bulging portion 47 and the passenger seat side bulging portion 48 is separated from the left side wall 45a and the right side wall 45b when the inflation is completed. A tether 56 that connects the left side wall 45a and the right side wall 45b is disposed so as to regulate the distance (see FIGS. 3, 4, and 6). The tether 56 regulates the width dimension of the upper side portion 45 in the left-right direction when the inflation is completed, and the driver seat side bulge portion 47 and the passenger seat side bulge portion disposed below the upper side portion 45. It arrange | positions in order to stabilize the bulging shape to the left-right direction side of 48.

また、後側部位44は、膨張完了時における助手席用エアバッグ26からの後方への突出量L1(図7参照)を、100mm以上とするように、構成することが好ましい。後側部位44の助手席用エアバッグ26からの後方への突出量L1が100mm以上であれば、上半身受止部46によって、乗員Mの上半身MU(肩MS若しくは頭部MH)を円滑に拘束して、十分な拘束性能を得られるためである。具体的には、後側部位44の助手席用エアバッグ26からの後方への突出量L1は、100〜200mmの範囲内に設定することが望ましく、実施形態では、後側部位44の助手席用エアバッグ26からの後方への突出量L1は、170mmに、設定されている。   Further, the rear portion 44 is preferably configured so that the rearward protrusion amount L1 (see FIG. 7) from the passenger airbag 26 at the completion of inflation is 100 mm or more. If the rearward protruding amount L1 of the rear portion 44 from the passenger seat airbag 26 is 100 mm or more, the upper body receiving portion 46 smoothly restrains the upper body MU (shoulder MS or head MH) of the occupant M. This is because sufficient restraint performance can be obtained. Specifically, the rearward protrusion amount L1 of the rear portion 44 from the passenger seat airbag 26 is preferably set within a range of 100 to 200 mm. In the embodiment, the passenger seat of the rear portion 44 is set. A rearward protrusion amount L1 from the air bag 26 is set to 170 mm.

実施形態の乗員保護装置Sの作動時には、運転席用エアバッグ装置18や助手席用エアバッグ装置25の図示しないインフレーターが作動して膨張用ガスを吐出し、運転席用エアバッグ19と助手席用エアバッグ26とが内部に膨張用ガスを流入させて後方に向かって展開膨張するとともに、中央エアバッグ装置30のインフレーター32が作動して膨張用ガスを吐出し、中央エアバッグ34が、内部に膨張用ガスを流入させて後方に向かって展開膨張することとなる(図1,2の二点鎖線及び図7〜9参照)。   When the occupant protection device S according to the embodiment is activated, inflators (not shown) of the driver seat airbag device 18 and the passenger seat airbag device 25 are activated to discharge inflation gas, and the driver seat airbag 19 and the passenger seat are discharged. The inflating gas flows into the interior air bag 26 and expands and inflates rearward, and the inflator 32 of the central airbag device 30 operates to discharge the inflating gas. The expansion gas is caused to flow into and expand and expand rearward (see the two-dot chain line in FIGS. 1 and 2 and FIGS. 7 to 9).

そして、実施形態の乗員保護装置Sでは、作動時に、運転席用エアバッグ19、助手席用エアバッグ26、及び、中央エアバッグ34の膨張完了時において、運転席13若しくは助手席14に着座した乗員M(運転者MD若しくは助手席搭載者MP)が、左右方向の中央側でかつ前方となる斜め前方側に向かって移動すると、この乗員Mを、中央エアバッグ34の後面44c側の部位により受け止めることとなるが、中央エアバッグ34は、左右の側方を、運転席用エアバッグ19と助手席用エアバッグ26とに近接若しくは接触させていることから、乗員Mからすり抜けるように左右に移動することを抑制されて、後面44c側の上半身受止部46により、乗員Mの上半身MUを、受け止めることができる。また、実施形態では、中央エアバッグ34は、前端側の支持部40の部位でインパネ1のセンタークラスタ2の後面2aに支持されることから、上半身受止部46によって、乗員Mの上半身MU、具体的には、肩MSと頭部MHとを的確に拘束することができる。詳細には、実施形態の乗員保護装置Sでは、中央エアバッグ34は、膨張完了時に運転席用エアバッグ19及び助手席用エアバッグ26よりも後方に突出して配置され、換言すれば、上半身受止部46は、膨張完了時に運転席用エアバッグ19及び助手席用エアバッグ26よりも後方に突出した位置に配置されることから、乗員Mは、肩MSを上半身受止部46に拘束された状態で、頭部MHを、上半身受止部46と、運転席用エアバッグ19若しくは助手席用エアバッグ26と、の間の隙間に進入させつつ、上半身受止部46に受け止められて、頭部MHを拘束されることとなる。   In the occupant protection device S according to the embodiment, the driver's seat airbag 19, the passenger's seat airbag 26, and the central airbag 34 are seated on the driver's seat 13 or the passenger seat 14 when the inflation is completed. When the occupant M (the driver MD or the passenger seat occupant MP) moves toward the diagonally forward side that is the front side in the left-right direction, the occupant M is moved by the portion on the rear surface 44c side of the central airbag 34. The central airbag 34 has left and right sides that are close to or in contact with the driver's seat airbag 19 and the passenger's seat airbag 26, so that the left and right sides of the central airbag 34 can pass from the passenger M. The movement of the upper body MU of the occupant M can be received by the upper body receiving portion 46 on the rear surface 44c side while being restrained from moving. In the embodiment, the central airbag 34 is supported by the rear surface 2a of the center cluster 2 of the instrument panel 1 at the front end side support portion 40, so that the upper body MU, Specifically, the shoulder MS and the head MH can be accurately restrained. Specifically, in the occupant protection device S according to the embodiment, the central airbag 34 is disposed so as to protrude rearward from the driver airbag 19 and the passenger airbag 26 at the completion of the inflation, in other words, the upper body reception. Since the stop 46 is disposed at a position protruding rearward from the driver airbag 19 and the passenger airbag 26 when the inflation is completed, the occupant M is restrained by the upper body receiving portion 46 with the shoulder MS. In this state, the head MH is received by the upper body receiving portion 46 while entering the gap between the upper body receiving portion 46 and the driver seat airbag 19 or the passenger seat airbag 26, The head MH is restrained.

また、中央エアバッグ34は、膨張を完了させた運転席用エアバッグ19の前側に張り出すように配置される張出膨張部38を備える構成であることから、仮に、中央エアバッグ34が、上半身受止部46によって運転席13に着座した運転者MDを受け止めた際に、運転席13から離れるように移動した場合や、運転者MDを受け止めた運転席用エアバッグ19が中央エアバッグ34から離れるように移動した場合(図10参照)にも、中央エアバッグ34と運転席用エアバッグ19との間の隙間に進入しつつ、斜め前方に向かって移動する運転者MDが、運転席用エアバッグ19と中央エアバッグ34との間からすり抜けるように移動することを抑制でき、運転席用エアバッグ19の前側に張り出している張出膨張部38によって、運転者MDの上半身MUを的確に受け止めることができる。ちなみに、中央エアバッグ34が、上半身受止部46によって助手席14に着座した助手席搭載者MPを受け止めた際に、助手席14から離れるように移動した場合には、中央エアバッグ34は、運転席用エアバッグ19やステアリングホイール9に支持されることとなって、助手席用エアバッグ26との間に大きな隙間を生じさせるように移動することを抑制できるため、斜め前方に向かって移動する助手席搭載者MPを、運転席用エアバッグ19やステアリングホイール9に支持された中央エアバッグ34の上半身受止部46によって、的確に受け止めることができる。その結果、実施形態の乗員保護装置Sでは、斜め衝突時やオフセット衝突時に、左右方向の中央側でかつ前方となる斜め前方側に向かって移動する乗員Mの上半身MUを、運転席用エアバッグ19と助手席用エアバッグ26との間に配置されるように膨張する中央エアバッグ34によって、円滑に拘束することができる。   Further, since the central airbag 34 is configured to include an overhanging inflating portion 38 that is disposed so as to overhang the front side of the driver's seat airbag 19 that has been inflated, the central airbag 34 is assumed to be When the driver MD seated on the driver's seat 13 is received by the upper body receiving portion 46, the driver's seat airbag 19 that has moved away from the driver's seat 13 or has received the driver MD is the central airbag 34. Even when the vehicle moves away from the vehicle (see FIG. 10), the driver MD who moves diagonally forward while entering the gap between the central airbag 34 and the driver airbag 19 is The air bag 19 and the central air bag 34 can be prevented from moving between the air bag 19 and the central air bag 34. The upper body MU of MD can be received accurately. By the way, when the central airbag 34 moves away from the passenger seat 14 when receiving the passenger seat mounter MP seated on the passenger seat 14 by the upper body receiving portion 46, the central airbag 34 Since it is supported by the driver airbag 19 and the steering wheel 9 and can be prevented from moving so as to create a large gap with the passenger airbag 26, it moves obliquely forward. The passenger seat mounter MP to be received can be accurately received by the upper body receiving portion 46 of the central airbag 34 supported by the driver airbag 19 and the steering wheel 9. As a result, in the occupant protection device S of the embodiment, the upper body MU of the occupant M that moves toward the diagonally forward side, which is the center side in the left-right direction and the forward side, at the time of an oblique collision or an offset collision, The central airbag 34 that is inflated so as to be disposed between the airbag 19 and the passenger airbag 26 can be restrained smoothly.

したがって、実施形態の乗員保護装置Sでは、車両Vの左右方向の中央側でかつ前方となる斜め前方側に向かって移動する乗員Mを、円滑に保護することができる。   Therefore, in the occupant protection device S of the embodiment, the occupant M that moves toward the diagonally forward side that is the front side in the lateral direction of the vehicle V can be protected smoothly.

また、実施形態の乗員保護装置Sでは、上半身受止部46における運転席13側の下部側に、膨張完了時に、左右方向側の外方(左方)に張り出すように形成される運転席側膨出部47を、配置させていることから、この運転席側膨出部47が、斜め前方側に向かって移動する運転者MDの腰部を的確に拘束することができ、腰部を拘束された状態で、運転者MDの頭部MHが上半身受止部46における上側の領域に受け止められることとなって、上半身受止部46によって、運転者MDの上半身MUを、一層的確に受け止めることができる。同様に、実施形態の乗員保護装置Sでは、上半身受止部46における助手席14側の下部側に、膨張完了時に、左右方向側の外方(右方)に張り出すように形成される助手席側膨出部48を、配置させていることから、この助手席側膨出部48が、斜め前方に向かって移動する助手席搭載者MPの腰部を的確に拘束することができ、腰部を拘束された状態で、助手席搭載者MPの頭部MHが、上半身受止部46における上側の領域に受け止められることとなって、上半身受止部46によって、助手席搭載者MPの上半身MUを、一層的確に受け止めることができる。   Further, in the passenger protection device S of the embodiment, the driver's seat is formed on the lower side of the driver's seat 13 side in the upper body receiving portion 46 so as to protrude outward (leftward) in the left-right direction when expansion is completed. Since the side bulging portion 47 is disposed, the driver seat side bulging portion 47 can accurately restrain the waist of the driver MD moving obliquely forward, and the waist is restrained. In this state, the head MH of the driver MD is received in the upper region of the upper body receiving unit 46, and the upper body MU 610 can more accurately receive the upper body MU of the driver MD. it can. Similarly, in the passenger protection device S of the embodiment, an assistant formed on the lower side of the passenger seat 14 side of the upper body receiving portion 46 so as to project outward (rightward) in the left-right direction when inflation is completed. Since the seat side bulging portion 48 is disposed, the passenger seat side bulging portion 48 can accurately restrain the waist portion of the passenger seat mounter MP moving obliquely forward, In the restrained state, the head MH of the passenger seat mounter MP is received by the upper region of the upper body receiving section 46, and the upper body receiving section 46 allows the upper body MU of the passenger seat mounter MP to be Can be taken more accurately.

勿論、このような点を考慮しなければ、図11に示す中央エアバッグ34Aのごとく、上半身受止部58の下端側に、運転席側膨出部と乗員側膨出部とを設けず、上半身受止部58を構成する中央エアバッグ34Aの後側部位44Aを、膨張完了時に、上下の略全域にわたって、左右方向側の幅寸法を略一定とするように、構成してもよい。なお、図11に示す中央エアバッグ34Aでは、上半身受止部58における左右方向の中央に、助手席用エアバッグ26の乗員側壁部27と同様に、上下方向に略沿って凹溝状として前方に凹むような凹部58aを、配設させている。このように、上半身受止部58に凹部58aを設ける構成としてもよい。   Of course, if such a point is not taken into consideration, the driver seat side bulging portion and the occupant side bulging portion are not provided on the lower end side of the upper body receiving portion 58 as in the central airbag 34A shown in FIG. The rear portion 44A of the central airbag 34A that constitutes the upper body receiving portion 58 may be configured such that the width dimension on the left and right direction sides is substantially constant over substantially the entire upper and lower regions when inflation is completed. In the central airbag 34A shown in FIG. 11, in the center of the upper body receiving portion 58 in the left-right direction, as in the case of the passenger side wall portion 27 of the passenger seat airbag 26, the front is formed as a concave groove shape substantially along the vertical direction. A recess 58a that is recessed is provided. Thus, it is good also as a structure which provides the recessed part 58a in the upper body receiving part 58. FIG.

さらにまた、実施形態の乗員保護装置Sでは、中央エアバッグ34内に、張出膨張部38を形成するための横テザー50,51,縦テザー52や、運転席側膨出部47及び助手席側膨出部48を形成するためのテザー56を、配置させていることから、中央エアバッグ34の膨張完了形状を安定させることができる。また、実施形態の乗員保護装置Sでは、運転席用エアバッグ19と助手席用エアバッグ26との左右方向側で重なる領域に、左右方向で対向する左側壁42a,右側壁42b相互の離隔距離を規制する規制テザー54,55を、配設させていることから、中央エアバッグ34が運転席用エアバッグ19や助手席用エアバッグ26に対して強く干渉することを抑制できて、運転席用エアバッグ19、助手席用エアバッグ26、及び、中央エアバッグ34の膨張完了形状を安定させることができる。勿論、このような点を考慮しなければ、中央エアバッグ内にテザーを配置させない構成としてもよい。   Furthermore, in the occupant protection device S of the embodiment, the lateral tethers 50 and 51, the vertical tether 52 for forming the overhanging inflating portion 38, the driver side inflating portion 47, and the passenger seat are formed in the central airbag 34. Since the tether 56 for forming the side bulging portion 48 is disposed, the expansion completion shape of the central airbag 34 can be stabilized. In the occupant protection device S of the embodiment, the distance between the left side wall 42a and the right side wall 42b facing each other in the left-right direction in the region where the driver airbag 19 and the passenger airbag 26 overlap in the left-right direction is provided. Therefore, the central airbag 34 can be prevented from strongly interfering with the driver's airbag 19 and the passenger's airbag 26, and the driver's seat can be controlled. The inflated complete shapes of the airbag 19, the passenger airbag 26, and the central airbag 34 can be stabilized. Of course, if such a point is not taken into consideration, the tether may not be arranged in the central airbag.

なお、実施形態の乗員保護装置Sでは、中央エアバッグ34を収納させるケース31を、インパネ1のセンタークラスタ2であって、膨張完了時の中央エアバッグ34におけるエアバッグ本体36の前側となる位置に、配置させているが、ケースの配置位置は、これに限られるものではなく、膨張を完了させた中央エアバッグのエアバッグ本体を、インパネによって的確に支持可能な構成であれば、エアバッグ本体よりも左方あるいは右方にずれた位置(運転席用エアバッグ装置側あるいは助手席用エアバッグ装置側にずれた位置)に、ケースを配置させるように、中央エアバッグ装置を構成してもよい。   In the occupant protection device S of the embodiment, the case 31 in which the central airbag 34 is stored is the center cluster 2 of the instrument panel 1 and is located on the front side of the airbag body 36 in the central airbag 34 when the inflation is completed. However, the arrangement position of the case is not limited to this, and an airbag can be used as long as the airbag body of the central airbag that has been inflated can be accurately supported by the instrument panel. The central airbag device is configured so that the case is arranged at a position shifted to the left or right of the main body (a position shifted toward the driver airbag device or the passenger airbag device). Also good.

1…インストルメントパネル(インパネ)、8…ステアリング装置、9…ステアリングホイール、13…運転席、14…助手席、18…運転席用エアバッグ装置、19…運転席用エアバッグ、25…助手席用エアバッグ装置、26…助手席用エアバッグ、30…中央エアバッグ装置、34,34A…中央エアバッグ、36,36A…エアバッグ本体、38,38A…張出膨張部、42…中央側部位、44,44A…後側部位、45…上部側部位、46…上半身受止部、47…運転席側膨出部、48…助手席側膨出部、50,51…横テザー、52…縦テザー、54,55…規制テザー、56…テザー、58…上半身受止部、M…乗員、MD…運転者、MP…助手席搭載者、MU…上半身、V…車両、S…乗員保護装置。
DESCRIPTION OF SYMBOLS 1 ... Instrument panel (instrument panel), 8 ... Steering device, 9 ... Steering wheel, 13 ... Driver seat, 14 ... Passenger seat, 18 ... Driver seat airbag device, 19 ... Driver seat airbag, 25 ... Passenger seat Airbag device, 26 ... Passenger seat airbag, 30 ... Central airbag device, 34, 34A ... Central airbag, 36, 36A ... Airbag body, 38, 38A ... Overhang inflating part, 42 ... Central side part 44, 44A ... rear part, 45 ... upper part, 46 ... upper body receiving part, 47 ... driver's seat side bulging part, 48 ... passenger seat side bulging part, 50, 51 ... horizontal tether, 52 ... vertical Tether, 54, 55 ... Regulatory tether, 56 ... Tether, 58 ... Upper body receiving part, M ... Crew, MD ... Driver, MP ... Passenger seat, MU ... Upper body, V ... Vehicle, S ... Crew protection device.

Claims (4)

車両の運転席若しくは助手席に着座した乗員を保護可能として、
前記運転席の前方に配置されるステアリングホイールの上面側を覆うように膨張する運転席用エアバッグと、前記助手席の前方においてインストルメントパネルから後方に突出するように膨張する助手席用エアバッグと、前記運転席と前記助手席との間の領域において前記運転席用エアバッグと前記助手席用エアバッグとの間に膨張する中央エアバッグと、を備える乗員保護装置であって、
該中央エアバッグは、膨張完了時に、前記運転席用エアバッグ及び前記助手席用エアバッグより後方に突出して、前記車両の衝突時に、左右方向の中央側に移動する前記乗員を受け止め可能に、構成されるもので、
膨張完了時の左右の側方を、膨張を完了させた前記運転席用エアバッグと前記助手席用エアバッグとに近接若しくは接触させるとともに、膨張を完了させた前記運転席用エアバッグの前側に張り出すように配置される張出膨張部を備え、膨張完了時の後面側に、前記乗員の上半身を受け止め可能な上半身受止部を、備える構成とされ
前記上半身受止部が、前記中央エアバッグの膨張完了時に、前記運転席側の下部側に、左右方向側の外方に張り出すように形成される運転席側膨出部を、備えていることを特徴とする乗員保護装置。
Protect passengers seated in the driver's or passenger seat of the vehicle,
A driver's seat airbag that inflates so as to cover an upper surface side of a steering wheel that is disposed in front of the driver's seat, and a passenger's seat airbag that inflates so as to protrude rearward from the instrument panel in front of the passenger seat. When, a multiply-membered protection device that includes a central air bags, which is inflated between the driver-seat airbag in the region and the passenger-seat airbag between the driver seat and the passenger seat,
The central airbag protrudes rearward from the driver airbag and the passenger airbag when the inflation is completed, and can receive the occupant moving to the center in the left-right direction when the vehicle collides. It is composed of
The left and right sides at the time of completion of inflation are brought close to or in contact with the airbag for driver's seat and the airbag for passenger seat that have been inflated, and in front of the airbag for driver's seat that has been inflated. An overhanging inflatable portion arranged so as to overhang, and an upper body receiving portion capable of receiving the upper body of the occupant on the rear surface side when inflating is completed ,
The upper body receiving portion includes a driver seat side bulging portion formed so as to protrude outward in the left-right direction side on the lower side of the driver seat side when the inflation of the central airbag is completed . An occupant protection device.
前記上半身受止部が、前記中央エアバッグの膨張完了時に、前記助手席側の下部側に、左右方向側の外方に張り出すように形成される助手席側膨出部を、備えていることを特徴とする請求項1に記載の乗員保護装置。 The upper body receiving portion includes a passenger seat side bulging portion formed so as to project outward in the left-right direction on the lower side of the passenger seat side when the central airbag is inflated. The occupant protection device according to claim 1 . 車両の運転席若しくは助手席に着座した乗員を保護可能として、
前記運転席の前方に配置されるステアリングホイールの上面側を覆うように膨張する運転席用エアバッグと、前記助手席の前方においてインストルメントパネルから後方に突出するように膨張する助手席用エアバッグと、前記運転席と前記助手席との間の領域において前記運転席用エアバッグと前記助手席用エアバッグとの間に膨張する中央エアバッグと、を備える乗員保護装置であって、
該中央エアバッグは、膨張完了時に、前記運転席用エアバッグ及び前記助手席用エアバッグより後方に突出して、前記車両の衝突時に、左右方向の中央側に移動する前記乗員を受け止め可能に、構成されるもので、
膨張完了時の左右の側方を、膨張を完了させた前記運転席用エアバッグと前記助手席用エアバッグとに近接若しくは接触させるとともに、膨張を完了させた前記運転席用エアバッグの前側に張り出すように配置される張出膨張部を備え、膨張完了時の後面側に、前記乗員の上半身を受け止め可能な上半身受止部を、備える構成とされ
前記上半身受止部が、前記中央エアバッグの膨張完了時に、前記助手席側の下部側に、左右方向側の外方に張り出すように形成される助手席側膨出部を、備えていることを特徴とする乗員保護装置。
Protect passengers seated in the driver's or passenger seat of the vehicle,
A driver's seat airbag that inflates so as to cover an upper surface side of a steering wheel that is disposed in front of the driver's seat, and a passenger's seat airbag that inflates so as to protrude rearward from the instrument panel in front of the passenger seat. When, a multiply-membered protection device that includes a central air bags, which is inflated between the driver-seat airbag in the region and the passenger-seat airbag between the driver seat and the passenger seat,
The central airbag protrudes rearward from the driver airbag and the passenger airbag when the inflation is completed, and can receive the occupant moving to the center in the left-right direction when the vehicle collides. It is composed of
The left and right sides at the time of completion of inflation are brought close to or in contact with the airbag for driver's seat and the airbag for passenger seat that have been inflated, and in front of the airbag for driver's seat that has been inflated. An overhanging inflatable portion arranged so as to overhang, and an upper body receiving portion capable of receiving the upper body of the occupant on the rear surface side when inflating is completed ,
The upper body receiving portion includes a passenger seat side bulging portion formed so as to project outward in the left-right direction on the lower side of the passenger seat side when the central airbag is inflated . An occupant protection device.
前記中央エアバッグ内に、膨張完了時に、膨張完了時の前記運転席用エアバッグと前記助手席用エアバッグとの左右方向側で重なる領域に、左右方向で対向する壁部相互の離隔距離を規制する規制テザーが、配置されていることを特徴とする請求項1乃至3のいずれか1項に記載の乗員保護装置。

In the central airbag, when the inflation is completed, a distance between the walls facing each other in the left-right direction is set in a region where the driver-side airbag and the passenger-side airbag at the time of the inflation are overlapped in the left-right direction. The occupant protection device according to any one of claims 1 to 3, wherein a restriction tether for restriction is disposed.

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