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JP7172286B2 - Knee airbag mounting structure - Google Patents

Knee airbag mounting structure Download PDF

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Publication number
JP7172286B2
JP7172286B2 JP2018159260A JP2018159260A JP7172286B2 JP 7172286 B2 JP7172286 B2 JP 7172286B2 JP 2018159260 A JP2018159260 A JP 2018159260A JP 2018159260 A JP2018159260 A JP 2018159260A JP 7172286 B2 JP7172286 B2 JP 7172286B2
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Prior art keywords
knee airbag
instrument panel
vehicle
airbag body
engaging piece
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JP2020032797A (en
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勇輝 脇坂
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Suzuki Motor Co Ltd
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Suzuki Motor Co Ltd
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Priority to JP2018159260A priority Critical patent/JP7172286B2/en
Priority to FR1909384A priority patent/FR3085325B1/en
Priority to CN201921400911.8U priority patent/CN210793086U/en
Priority to DE102019006074.1A priority patent/DE102019006074A1/en
Publication of JP2020032797A publication Critical patent/JP2020032797A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B60R21/205—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in dashboards
    • B60R21/206—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in dashboards in the lower part of dashboards, e.g. for protecting the knees
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B60R21/215—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components characterised by the covers for the inflatable member
    • B60R21/2165—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components characterised by the covers for the inflatable member characterised by a tear line for defining a deployment opening

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air Bags (AREA)
  • Vehicle Step Arrangements And Article Storage (AREA)

Description

本発明は、ニーエアバッグ取付け構造に関する。 The present invention relates to a knee airbag mounting structure.

従来、運転者等の乗員の膝を保護する膝保護用エアバッグ装置が知られている（例えば、特許文献１参照）。特許文献１には、乗員の前方側に配置されて、乗員の膝を保護可能に膨張するニーエアバッグ、及びニーエアバッグの車両後方側の開口を覆うエアバッグカバー、を組み立ててなる膝保護用エアバッグ装置が開示されている。このような従来の膝保護用エアバッグ装置は、車両衝突時、ニーエアバッグの膨張によって、エアバッグカバーのティアライン（衝突時、エアバッグの膨張力により破断し易いように形成された薄肉部）が破断して、エアバックが展開されるようになっている。 2. Description of the Related Art Conventionally, there is known a knee-protecting airbag device that protects the knees of an occupant such as a driver (see, for example, Patent Document 1). Patent Document 1 discloses a knee protection system in which a knee airbag that is arranged in front of an occupant and inflates so as to protect the occupant's knees and an airbag cover that covers an opening of the knee airbag on the rear side of the vehicle are assembled. An airbag device for a vehicle is disclosed. Such a conventional knee-protecting airbag device has a tear line (a thin portion formed so as to be easily broken by the expansion force of the airbag at the time of a collision) of the airbag cover due to the expansion of the knee airbag in the event of a vehicle collision. ) is broken and the airbag is deployed.

特開２００４－９８８９３号公報JP-A-2004-98893

しかしながら、従来の膝保護用エアバッグ装置は、車両衝突時におけるニーエアバッグの展開の反作用で、エアバッグカバーの周縁部が車両前方に変位してしまうことがある。 However, in the conventional knee-protecting airbag device, the peripheral edge of the airbag cover may be displaced forward of the vehicle due to reaction to deployment of the knee airbag in the event of a vehicle collision.

本発明は、ニーエアバッグが展開した際に、カバー部の周縁部が車両前方に変位することの抑制を図ったニーエアバッグ取付け構造を提供する。 SUMMARY OF THE INVENTION The present invention provides a knee airbag mounting structure that suppresses displacement of the peripheral portion of the cover portion toward the front of the vehicle when the knee airbag deploys.

上述した課題を解決するための本発明は、乗員の膝を保護するためのニーエアバッグ体をインパネ開口に取り付けるためのニーエアバッグ取付け構造であって、前記ニーエアバッグ体が、ニーエアバッグ本体と、該ニーエアバッグ本体の車両後方側の面を覆うカバー部と、を有し、前記カバー部が、カバー本体と、該カバー本体を前記インパネ開口に取り付けるバッグ側係合片と、を備え、前記バッグ側係合片が、前記ニーエアバッグ体の車両後方側の端部に設けられて、前記インパネ開口の車幅方向の端縁に向けて前記インパネ開口の面方向に延びる延出板部を有し、前記インパネ開口における前記端縁には、前記バッグ側係合片に係合するインパネ側係合片が設けられ、前記インパネ側係合片には、前記ニーエアバッグ体が前記インパネ開口に取り付けられた状態で、前記延出板部の車両後方側で当該延出板部に対向する対向部が設けられていることを特徴とするニーエアバッグ取付け構造である。 The present invention for solving the above-described problems is a knee airbag mounting structure for mounting a knee airbag body for protecting the knees of an occupant to an instrument panel opening, wherein the knee airbag body is a knee airbag. A main body and a cover portion covering a vehicle rear side surface of the knee airbag main body, wherein the cover portion includes a cover main body and a bag-side engaging piece for attaching the cover main body to the instrument panel opening. The bag-side engaging piece is provided at a vehicle rear side end portion of the knee airbag body and extends in a plane direction of the instrument panel opening toward an edge of the instrument panel opening in a vehicle width direction. An instrument panel side engaging piece that engages with the bag side engaging piece is provided at the edge of the instrument panel opening, and the knee airbag body is attached to the instrument panel side engaging piece. The knee airbag mounting structure is characterized in that a facing portion is provided on the vehicle rear side of the extending plate portion so as to face the extending plate portion when the knee airbag is attached to the instrument panel opening.

本発明によれば、ニーエアバッグが展開した際に、カバー部の周縁部に位置するバッグ側係合片が車両前方に変位することの抑制を図ることができる。 According to the present invention, when the knee airbag is deployed, it is possible to suppress the displacement of the bag-side engaging piece positioned at the peripheral edge of the cover portion toward the front of the vehicle.

本発明の一実施の形態にかかるニーエアバッグ取付け構造が適用された車両ボディの前方構造を上方から見た平面図である。1 is a top plan view of a front structure of a vehicle body to which a knee airbag mounting structure according to an embodiment of the present invention is applied; FIG. 前記ニーエアバッグ取付け構造を構成するニーエアバック体を車両後方から見た斜視図である。FIG. 4 is a perspective view of a knee airbag body that constitutes the knee airbag mounting structure, viewed from the rear of the vehicle; 前記ニーエアバッグ取付け構造を構成するニーエアバック体を車両前方から見た斜視図である。FIG. 3 is a perspective view of a knee airbag body that constitutes the knee airbag mounting structure, as viewed from the front of the vehicle; 前記ニーエアバッグ取付け構造の要部を示す拡大図である。FIG. 4 is an enlarged view showing a main part of the knee airbag mounting structure; 前記ニーエアバッグ取付け構造を構成するインパネ開口を示す斜視図である。FIG. 4 is a perspective view showing an instrument panel opening that constitutes the knee airbag mounting structure; 前記ニーエアバッグ取付け構造の変形例が適用された車両ボディの前方構造を上方から見た平面図である。FIG. 10 is a top plan view of the front structure of the vehicle body to which the modification of the knee airbag mounting structure is applied; 前記ニーエアバッグ取付け構造の変形例の要部を示す拡大図である。FIG. 11 is an enlarged view showing a main part of a modification of the knee airbag mounting structure;

請求項１に記載された発明は、乗員の膝を保護するためのニーエアバッグ体をインパネ開口に取り付けるためのニーエアバッグ取付け構造であって、前記ニーエアバッグ体が、ニーエアバッグ本体と、該ニーエアバッグ本体の車両後方側の面を覆うカバー部と、を有し、前記カバー部が、カバー本体と、該カバー本体を前記インパネ開口に取り付けるバッグ側係合片と、を備え、前記バッグ側係合片が、前記ニーエアバッグ体の車両後方側の端部に設けられて、前記インパネ開口の車幅方向の端縁に向けて前記インパネ開口の面方向に延びる延出板部を有し、前記インパネ開口における前記端縁には、前記バッグ側係合片に係合するインパネ側係合片が設けられ、前記インパネ側係合片には、前記ニーエアバッグ体が前記インパネ開口に取り付けられた状態で、前記延出板部の車両後方側で当該延出板部に対向する対向部が設けられている。これによれば、ニーエアバッグ本体が展開した際の反作用によって、バッグ側係合片に車両前方側に向かう力が作用した際に、インパネ開口に設けられた対向部に延出板部が当接されることにより、バッグ側係合片が車両前方に変位することの抑制を図ることができる。 The invention recited in claim 1 is a knee airbag mounting structure for mounting a knee airbag body for protecting the knees of an occupant to an instrument panel opening, wherein the knee airbag body is attached to a knee airbag body. and a cover portion covering a vehicle rear side surface of the knee airbag body, wherein the cover portion includes a cover body and a bag-side engagement piece for attaching the cover body to the instrument panel opening, The bag-side engaging piece is provided at the vehicle rear side end of the knee airbag body, and extends in the plane direction of the instrument panel opening toward the edge of the instrument panel opening in the vehicle width direction. and an instrument panel side engagement piece that engages with the bag side engagement piece is provided at the edge of the instrument panel opening, and the instrument panel side engagement piece has the knee airbag body attached to the instrument panel. A facing portion is provided that faces the extending plate portion on the vehicle rear side of the extending plate portion when attached to the opening. According to this configuration, when the knee airbag main body deploys and a reaction force acts on the bag-side engaging piece toward the front side of the vehicle, the extended plate portion comes into contact with the opposing portion provided in the instrument panel opening. Due to the contact, it is possible to suppress the bag-side engaging piece from being displaced forward of the vehicle.

上述した課題を解決するための本発明は、乗員の膝を保護するためのニーエアバッグ体をインパネ開口に取り付けるためのニーエアバッグ取付け構造であって、前記インパネ開口の端縁には、インパネ側係合片が設けられ、前記ニーエアバッグ体が、ニーエアバッグ本体と、該ニーエアバッグ本体の車両後方側の面を覆うカバー部と、を有し、前記カバー部が、前記インパネ側係合片と係合するバッグ側係合片を有し、前記バッグ側係合片が、前記ニーエアバッグ体の車両後方側の端部に設けられて、前記インパネ開口の車幅方向の端縁向けて前記インパネ開口の面方向に延びる延出板部と、該延出板部から車両前方に向けて延びる延出片と、該延出片に設けられた突起部と、を有し、前記インパネ側係合片は、前記ニーエアバッグ体が前記インパネ開口に取り付けられた状態で、前記延出板部の車両前方側で当該延出板部に対向する対向部と、該対向部より車両前方側に設けられて、前記バッグ側係合片を係合させる係合部と、を備え、前記係合部は、前記突起部が通過可能な係合孔を有して構成されていることを特徴とするニーエアバッグ取付け構造である。 The present invention for solving the above-described problems is a knee airbag mounting structure for mounting a knee airbag body for protecting the knees of an occupant to an instrument panel opening. A side engaging piece is provided, and the knee airbag body has a knee airbag body and a cover portion covering a surface of the knee airbag body on the rear side of the vehicle, and the cover portion is located on the instrument panel side. It has a bag-side engaging piece that engages with the engaging piece, and the bag-side engaging piece is provided at an end portion of the knee airbag body on the vehicle rear side and extends at the vehicle width direction end of the instrument panel opening. an extending plate portion extending in a plane direction of the instrument panel opening toward an edge, an extending piece extending from the extending plate portion toward the front of the vehicle, and a protrusion provided on the extending piece ; The instrument panel-side engaging piece includes a facing portion facing the extending plate portion on the vehicle front side of the extending plate portion in a state where the knee airbag body is attached to the instrument panel opening , and the facing portion. an engaging portion that is provided on the front side of the vehicle and engages the bag-side engaging piece, the engaging portion having an engaging hole through which the projection can pass; The knee airbag mounting structure is characterized by:

図１に示されたニーエアバッグ取付け構造１は、乗員の膝を保護するためのニーエアバッグ体２をインパネ開口３に取り付けるための構造であって、ニーエアバッグ体２と、インパネ開口３と、を備えている。 A knee airbag mounting structure 1 shown in FIG. 1 is a structure for mounting a knee airbag body 2 for protecting the knees of a passenger to an instrument panel opening 3. and have.

ニーエアバッグ体２は、図２、３に示すように、車両衝突時に乗員側（車両後方側）に展開することで乗員の膝を保護するためのものである。ニーエアバッグ体２は、ニーエアバッグ本体２０（図２に示す）と、該ニーエアバッグ本体２０の車両後方側の面（展開面２０Ａ）を覆うカバー部２１と、を備えている。 As shown in FIGS. 2 and 3, the knee airbag body 2 protects the knees of the occupant by deploying toward the occupant (rear side of the vehicle) in the event of a vehicle collision. The knee airbag body 2 includes a knee airbag body 20 (shown in FIG. 2) and a cover portion 21 that covers the surface of the knee airbag body 20 on the vehicle rear side (deployment surface 20A).

ニーエアバッグ本体２０は、図１に示すように、乗員席の前方側に設けられ、展開される展開面２０Ａが車両後方側を向くように設置されている。 As shown in FIG. 1, the knee airbag main body 20 is provided on the front side of the passenger's seat, and is installed so that the deployment surface 20A to be deployed faces the rear side of the vehicle.

カバー部２１は、図２、３に示すように、カバー本体２２（図３に示す）と、カバー本体２２の周縁から車両前方に立設されてニーエアバッグ本体２０の周面を覆う筒状部２３（図２に示す）と、インパネ開口３に係合可能なバッグ側係合片２４と、を有している。 As shown in FIGS. 2 and 3, the cover portion 21 has a tubular shape that extends from a cover main body 22 (shown in FIG. 3) and the peripheral edge of the cover main body 22 toward the front of the vehicle to cover the peripheral surface of the knee airbag main body 20. It has a portion 23 (shown in FIG. 2) and a bag-side engaging piece 24 that can be engaged with the instrument panel opening 3 .

カバー本体２２には、ニーエアバッグ本体２０の展開面２０Ａを覆うことが可能な長方形板状に形成されている。カバー本体２２は、図３に示すように、高さ方向の中心部において、車幅方向に延在するティアラインＴが形成されている。 The cover main body 22 is formed in a rectangular plate shape capable of covering the deployment surface 20A of the knee airbag main body 20 . As shown in FIG. 3, the cover body 22 has a tear line T extending in the vehicle width direction at the center in the height direction.

筒状部２３は、図２に示すように、上下に対向する上下の第１板状部２３Ａ、２３Ｂと、左右（車幅方向）に対向する左右の第２板状部２３Ｃ、２３Ｄと、を有して構成されている。 As shown in FIG. 2, the cylindrical portion 23 includes upper and lower first plate-shaped portions 23A and 23B that face each other in the vertical direction, second left and right plate-shaped portions 23C and 23D that face each other in the left and right direction (vehicle width direction), is configured with

図１に示すように、バッグ側係合片２４は一対設けられている。各バッグ側係合片２４は、図４に示すように、カバー本体２２から車幅方向に延びる延出板部２５と、インパネ側係合片３１の係合孔３６（係合部）に向けて延びる延出片２６と、延出片２６に設けられて係合孔３６に係合する突起部２７と、を有している。 As shown in FIG. 1, a pair of bag-side engaging pieces 24 are provided. As shown in FIG. 4, each bag-side engaging piece 24 is directed toward an extending plate portion 25 extending in the vehicle width direction from the cover body 22 and an engaging hole 36 (engaging portion) of the instrument panel-side engaging piece 31. and a projecting portion 27 provided on the extending piece 26 and engaged with the engaging hole 36 .

延出板部２５は、カバー本体２２の面方向に延在形成されている。また、延出板部２５は、長方形板状に形成され、カバー本体２２とともにインパネ開口３を覆うことが可能な大きさに形成されている。 The extension plate portion 25 extends in the surface direction of the cover body 22 . The extending plate portion 25 is formed in a rectangular plate shape, and is formed in a size capable of covering the instrument panel opening 3 together with the cover main body 22 .

延出片２６は、一端２６ｂが延出板部２５に連続され、他端２６ｆが車両前方側に進むにしたがってニーエアバッグ本体２０から離れる方向に斜めに延在形成されている。延出片２６は、図１に示すように、ニーエアバッグ体２がインパネ開口３に取り付けられた状態で、インパネ側係合片３１の後述する外側板部３４の外面３４Ａに対向する位置に設けられている。以下では、延出片２６において、外側板部３４の外面３４Ａに対向する面を対向面２６Ａと記す。 One end 26b of the extension piece 26 is continuous with the extension plate portion 25, and the other end 26f of the extension piece 26 extends obliquely in a direction away from the knee airbag main body 20 as it advances toward the front side of the vehicle. As shown in FIG. 1, the extending piece 26 is positioned so as to face the outer surface 34A of the later-described outer plate portion 34 of the instrument panel-side engaging piece 31 when the knee airbag body 2 is attached to the instrument panel opening 3. is provided. Below, the surface of the extending piece 26 that faces the outer surface 34A of the outer plate portion 34 is referred to as a facing surface 26A.

突起部２７は、延出片２６の車両前方側の端部（他端）において、高さ方向に間隔をあけて一対設けられている。各突起部２７は、車幅方向のニーエアバッグ本体２０から離れる方向に突出して設けられ、インパネ側係合片３１の係合孔３６の周縁に係止可能に構成されている。 A pair of protrusions 27 are provided at a vehicle front end (the other end) of the extension piece 26 with a gap therebetween in the height direction. Each projecting portion 27 projects in a vehicle width direction away from the knee airbag main body 20 and is configured to be engageable with the peripheral edge of the engaging hole 36 of the instrument panel side engaging piece 31 .

インパネ開口３は、図１に示すように、その車幅方向両側の開口端縁３０ｃ、３０ｄから車幅方向内方に突出して設けられたインパネ側係合片３１を有している。 As shown in FIG. 1, the instrument panel opening 3 has instrument panel-side engagement pieces 31 that protrude inward in the vehicle width direction from opening edges 30c and 30d on both sides in the vehicle width direction.

図１に示すように、インパネ側係合片３１は車幅方向に間隔をあけて一対設けられている。各インパネ側係合片３１は、図４、５に示すように、インパネ開口面３０の車両前方側に対向して設けられた対向板部３２（対向部）と、内側板部３３（延在部）と、外側板部３４（連続部）と、車幅方向に延在して設けられた支持部３５と、を有している。対向板部３２、内側板部３３及び外側板部３４は、上面視が略コ字状になるように形成されている。 As shown in FIG. 1, a pair of instrument panel side engagement pieces 31 are provided with a gap in the vehicle width direction. As shown in FIGS. 4 and 5, each instrument panel-side engaging piece 31 includes a facing plate portion 32 (opposing portion) provided to face the vehicle front side of the instrument panel opening surface 30 and an inner plate portion 33 (extending portion). portion), an outer plate portion 34 (continuous portion), and a support portion 35 provided extending in the vehicle width direction. The opposing plate portion 32, the inner plate portion 33, and the outer plate portion 34 are formed to have a substantially U-shape when viewed from above.

対向板部３２は、図５に示すように、長方形板状に設けられ、板厚方向が車両前後方向となるように設けられている。また、延出板部２５は、長方形板状に形成され、高さ方向（長手方向）の中心部Ｍが、カバー本体２２に形成されたティアラインＴの延長線上に位置するように設けられている。対向板部３２は、長手方向が、ティアラインＴの延長線上に交差する方向に沿うように設けられている。 As shown in FIG. 5, the opposing plate portion 32 is provided in a rectangular plate shape, and is provided so that the plate thickness direction is the vehicle front-rear direction. The extending plate portion 25 is formed in a rectangular plate shape, and is provided so that the central portion M in the height direction (longitudinal direction) is positioned on the extension line of the tear line T formed on the cover main body 22. there is The opposing plate portion 32 is provided such that its longitudinal direction is along the direction intersecting the extended line of the tear line T. As shown in FIG.

内側板部３３は、図４、５に示すように、板状に形成され、一端（後端）３３ｂが対向板部３２のニーエアバッグ体２側の端部に連続され、他端（前端）３３ｆが車両前方側に進むにしたがってニーエアバッグ体２に向かうように斜めに延在形成されている。内側板部３３の前端３３ｆは、後述する外側板部３４の前端３４ｆより、車両前方側に位置している。 As shown in FIGS. 4 and 5, the inner plate portion 33 is formed in a plate shape, one end (rear end) 33b is continuous with the end portion of the opposing plate portion 32 on the side of the knee airbag body 2, and the other end (front end) 33b is continuous. ) 33f obliquely extends toward the knee airbag body 2 as it advances toward the front side of the vehicle. A front end 33f of the inner plate portion 33 is located on the front side of the vehicle from a front end 34f of the outer plate portion 34, which will be described later.

外側板部３４は、図４、５に示すように、板状に形成され、一端３４ｂが対向板部３２のニーエアバッグ体２から離れた側の端部に連続され、他端３４ｆが車両前方側に進むにしたがってニーエアバッグ体２から離れた側に向かうように斜めに延在形成されている。 As shown in FIGS. 4 and 5, the outer plate portion 34 is formed in a plate shape, one end 34b is connected to the end of the opposing plate portion 32 away from the knee airbag body 2, and the other end 34f is connected to the vehicle. It is obliquely formed to extend away from the knee airbag body 2 as it advances forward.

支持部３５は、図１に示すように、板状に形成され、一端が外側板部３４の車両前方側の端部に連続され、他端がインパネに支持されている。支持部３５には、バッグ側係合片２４の突起部２７が係合可能な係合孔３６が形成されている。係合孔３６は、支持部３５の外側板部３４側の端部に設けられている。また、係合孔３６は、支持部３５を貫通する貫通孔から構成されている。 As shown in FIG. 1 , the support portion 35 is formed in a plate shape, one end of which is continuous with the end of the outer plate portion 34 on the vehicle front side, and the other end of which is supported by the instrument panel. The supporting portion 35 is formed with an engaging hole 36 with which the projecting portion 27 of the bag-side engaging piece 24 can be engaged. The engagement hole 36 is provided at the end of the support portion 35 on the side of the outer plate portion 34 . Also, the engagement hole 36 is formed of a through hole penetrating through the support portion 35 .

次に、ニーエアバッグ取付け構造１の組立て手順について説明する。ニーエアバッグ体２は一対のバッグ側係合片２４が車幅方向に沿う向きで、バッグ側係合片２４の延出片２６の先端を、インパネ側係合片３１の係合孔３６に近付ける。バッグ側係合片２４の突起部２７が係合孔３６の周縁に挿入係止される。そして、ニーエアバッグ体２のカバー本体２２及び延出板部２５によって、インパネ開口３が塞がれる。こうして、ニーエアバッグ取付け構造１が完成する。 Next, the procedure for assembling the knee airbag mounting structure 1 will be described. The knee airbag body 2 has a pair of bag-side engaging pieces 24 oriented along the vehicle width direction, and the ends of the extending pieces 26 of the bag-side engaging pieces 24 are inserted into the engaging holes 36 of the instrument panel-side engaging pieces 31 . bring closer. The projecting portion 27 of the bag-side engaging piece 24 is inserted and locked into the peripheral edge of the engaging hole 36 . The instrument panel opening 3 is closed by the cover main body 22 and the extension plate portion 25 of the knee airbag body 2 . Thus, the knee airbag mounting structure 1 is completed.

上述した実施例によれば、ニーエアバッグ本体２０が展開した際の反作用によって、バッグ側係合片２４に車両前方側に向かう力が作用した際に、インパネ開口３に設けられた対向板部３２に延出板部２５が当接されることにより、バッグ側係合片２４が車両前方に変位することの抑制を図ることができる。 According to the above-described embodiment, when a force directed toward the vehicle front side acts on the bag-side engaging piece 24 due to reaction when the knee airbag main body 20 deploys, the opposed plate portion provided in the instrument panel opening 3 Since the extending plate portion 25 is brought into contact with 32, it is possible to prevent the bag-side engaging piece 24 from being displaced forward of the vehicle.

また、インパネ側係合片３１は、対向板部３２（対向部）より車両前方側に設けられて、バッグ側係合片２４を係合させる係合孔３６（係合部）と、対向板部３２と係合孔３６とに連続されて、車両前後方向に延びる外側板部３４（連続部）と、を有している。これによれば、外側板部３４が、カバー部２１に作用する車両前方側に向かう力を効率よく受け止めることにより、より一層、カバー部２１が車両前方に変位することの抑制を図ることができる。 Further, the instrument panel side engaging piece 31 is provided on the front side of the vehicle from the facing plate portion 32 (facing portion), and has an engaging hole 36 (engaging portion) for engaging the bag side engaging piece 24, and the facing plate portion 36 (engaging portion). It has an outer plate portion 34 (continuous portion) that is continuous with the portion 32 and the engagement hole 36 and extends in the vehicle front-rear direction. According to this configuration, the outer plate portion 34 efficiently receives the force acting on the cover portion 21 toward the front side of the vehicle, thereby further suppressing the displacement of the cover portion 21 toward the front side of the vehicle. .

また、バッグ側係合片２４には、対向板部３２（対向部）のニーエアバッグ本体２０から離れた端部に連続されて、外側板部３４（連続部）のニーエアバッグ本体２０から離れた側の面に対向する対向面２６Ａが設けられている。これによれば、カバー部２１に車両前方側に向かう力が作用して、ティアラインＴが破断してカバー部２１が変位されて、外側板部３４の外面３４Ａに対向面２６Ａが当接した場合には、カバー部２１が車両前方に変位することの抑制を図ることができる。 In addition, the bag-side engaging piece 24 is connected to the end portion of the opposing plate portion 32 (opposing portion) away from the knee airbag main body 20 so as to extend from the knee airbag main body 20 of the outer plate portion 34 (continuous portion). A facing surface 26A is provided that faces the surface on the far side. According to this, a force directed toward the front side of the vehicle was applied to the cover portion 21, the tear line T was broken, the cover portion 21 was displaced, and the facing surface 26A came into contact with the outer surface 34A of the outer plate portion 34. In this case, it is possible to prevent the cover portion 21 from being displaced forward of the vehicle.

また、カバー本体２２には、車幅方向に連続されるティアラインＴが設けられ、対向板部３２（対向部）は、ティアラインＴの延長線上に交差する方向に延びている。これによれば、ティアラインＴが破断しても、対向板部３２がティアラインＴの延長線上に交差する方向に延びていることで、対向板部３２を、より確実にバッグ側係合片２４の延出板部２５に当接させることができる。 Further, the cover body 22 is provided with a tear line T that continues in the vehicle width direction, and the opposing plate portion 32 (opposing portion) extends in a direction that intersects the extension line of the tear line T. As shown in FIG. According to this, even if the tear line T is broken, the facing plate portion 32 extends in the direction intersecting the extension line of the tear line T, so that the facing plate portion 32 can be more securely attached to the bag-side engaging piece. 24 can be brought into contact with the extension plate portion 25 .

また、インパネ側係合片３１には、対向板部３２（対向部）のニーエアバッグ体２側の端部に連続されて、車両前方に延びる内側板部３３（延在部）が設けられている。これによれば、内側板部３３が設けられていることにより、インパネ側係合片３１の剛性の向上を図ることができる。 Further, the instrument panel-side engaging piece 31 is provided with an inner plate portion 33 (extending portion) that extends forward of the vehicle and is continuous with the end portion of the opposing plate portion 32 (facing portion) on the side of the knee airbag body 2 . ing. According to this, since the inner plate portion 33 is provided, the rigidity of the instrument panel side engaging piece 31 can be improved.

なお、本発明は、実施例に限定されるものではなく、本発明の目的が達成できる他の構成等を含み、以下に示すような変形例も本発明に含まれる。 It should be noted that the present invention is not limited to the examples, but includes other configurations and the like that can achieve the object of the present invention, and the following modifications are also included in the present invention.

上述した実施例では、バッグ側係合片２４の突起部２７が、インパネ側係合片３１の係合孔３６の周縁に係止することで、ニーエアバッグ体２が、インパネ開口３に取り付けられているが本発明はこれに限定されるものではない。図６、７に示すように、バッグ側係合片２４のカバー本体２２から離れた端部に、ボルトＢが挿入されるボルト孔５１が設けられ、インパネ側係合片３１に形成された締結孔５２にナットＮを用いて螺合されることで、ニーエアバッグ体２が、インパネ開口３に取り付けられていてもよい。即ち、ニーエアバッグ体２が、インパネ開口３にボルト固定されることで、取り付けられていてもよい。 In the embodiment described above, the knee airbag body 2 is attached to the instrument panel opening 3 by engaging the protrusion 27 of the bag-side engaging piece 24 with the peripheral edge of the engaging hole 36 of the instrument panel-side engaging piece 31. However, the present invention is not limited to this. As shown in FIGS. 6 and 7, a bolt hole 51 into which a bolt B is inserted is provided at the end of the bag-side engaging piece 24 away from the cover body 22, and the fastening formed on the instrument panel-side engaging piece 31 is provided. The knee airbag body 2 may be attached to the instrument panel opening 3 by being screwed into the hole 52 using a nut N. That is, the knee airbag body 2 may be attached by being bolted to the instrument panel opening 3 .

その他、本発明を実施するための最良の構成、方法などは、以上の記載で開示されているが、本発明は、これに限定されるものではない。即ち、本発明は、主に特定の実施例に関して特に図示され、且つ、説明されているが、本発明の技術的思想及び、目的の範囲から逸脱することなく、以上述べた実施例に対し、形状、材質、数量、その他の詳細な構成において、当業者が様々な変形を加えることができるものである。従って、上記に開示した形状、材質などを限定した記載は、本発明の理解を容易にするために例示的に記載したものであり、本発明を限定するものではないから、それらの形状、材質などの限定の一部、もしくは全部の限定を外した部材の名称での記載は、本発明に含まれるものである。 In addition, although the best configuration, method, etc. for carrying out the present invention have been disclosed in the above description, the present invention is not limited thereto. Thus, although the present invention has been particularly illustrated and described primarily with respect to particular embodiments, it is possible to make modifications to the above-described embodiments without departing from the spirit and scope of the invention. Various modifications can be made by those skilled in the art in terms of shape, material, quantity, and other detailed configurations. Therefore, the descriptions that limit the shape, material, etc. disclosed above are exemplified to facilitate understanding of the present invention, and do not limit the present invention. The description by the name of the member that removes all or part of the limitation such as is included in the present invention.

１ ニーエアバッグ取付け構造
２ ニーエアバッグ体
３ インパネ開口
２０ ニーエアバッグ本体
２１ カバー部
２２ カバー本体
２４ バッグ側係合片
２５ 延出板部
２６Ａ 対向面
３０ｃ、３０ｄ インパネ開口の車幅方向の端縁
３１ インパネ側係合片
３２ 対向板部（対向部）
３３ 内側板部（延在部）
３４ 外側板部（連続部）
３４Ａ 外側板部の外面
３６ 係合孔（係合部）
Ｔ ティアライン 1 Knee Airbag Mounting Structure 2 Knee Airbag Body 3 Instrument Panel Opening 20 Knee Airbag Body 21 Cover Part 22 Cover Body 24 Bag Side Engagement Piece 25 Extension Plate Part 26A Facing Surfaces 30c, 30d Ends of Instrument Panel Opening in Vehicle Width Direction Rim 31 Instrument panel side engagement piece 32 Opposing plate portion (opposing portion)
33 Inner plate (extension)
34 outer plate portion (continuous portion)
34A Outer surface 36 of outer plate portion Engagement hole (engagement portion)
T tear line

Claims (5)

乗員の膝を保護するためのニーエアバッグ体をインパネ開口に取り付けるためのニーエアバッグ取付け構造であって、
前記インパネ開口の端縁には、インパネ側係合片が設けられ、
前記ニーエアバッグ体が、ニーエアバッグ本体と、該ニーエアバッグ本体の車両後方側の面を覆うカバー部と、を有し、
前記カバー部が、前記インパネ側係合片と係合するバッグ側係合片を有し、
前記バッグ側係合片が、前記ニーエアバッグ体の車両後方側の端部に設けられて、前記インパネ開口の車幅方向の端縁向けて前記インパネ開口の面方向に延びる延出板部と、該延出板部から車両前方に向けて延びる延出片と、該延出片に設けられた突起部と、を有し、
前記インパネ側係合片は、前記ニーエアバッグ体が前記インパネ開口に取り付けられた状態で、前記延出板部の車両前方側で当該延出板部に対向する対向部と、該対向部より車両前方側に設けられて、前記バッグ側係合片を係合させる係合部と、を備え、
前記係合部は、前記突起部が通過可能な係合孔を有して構成されていることを特徴とするニーエアバッグ取付け構造。 A knee airbag mounting structure for mounting a knee airbag body for protecting the knees of an occupant to an instrument panel opening,
An instrument panel side engagement piece is provided at an edge of the instrument panel opening,
The knee airbag body has a knee airbag body and a cover portion covering a surface of the knee airbag body on the vehicle rear side,
The cover portion has a bag-side engagement piece that engages with the instrument panel-side engagement piece,
The bag-side engaging piece is provided at the vehicle rear side end of the knee airbag body and extends in the plane direction of the instrument panel opening toward the edge of the instrument panel opening in the vehicle width direction . , an extension piece extending toward the front of the vehicle from the extension plate portion, and a protrusion provided on the extension piece,
The instrument panel-side engaging piece includes a facing portion facing the extending plate portion on the vehicle front side of the extending plate portion in a state where the knee airbag body is attached to the instrument panel opening , and the facing portion. an engaging portion that is provided on the front side of the vehicle and engages the bag-side engaging piece,
The knee airbag mounting structure , wherein the engaging portion has an engaging hole through which the protrusion can pass . 乗員の膝を保護するためのニーエアバッグ体をインパネ開口に取り付けるためのニーエアバッグ取付け構造であって、A knee airbag mounting structure for mounting a knee airbag body for protecting the knees of an occupant to an instrument panel opening,
前記インパネ開口の端縁には、インパネ側係合片が設けられ、An instrument panel side engagement piece is provided at an edge of the instrument panel opening,
前記ニーエアバッグ体が、ニーエアバッグ本体と、該ニーエアバッグ本体の車両後方側の面を覆うカバー部を有し、The knee airbag body has a knee airbag body and a cover part covering a surface of the knee airbag body on the vehicle rear side,
前記カバー部が、前記インパネ側係合片と係合するバッグ側係合片と、を有し、The cover portion has a bag-side engaging piece that engages with the instrument panel-side engaging piece,
前記バッグ側係合片が、前記ニーエアバッグ体の車両後方側の端部に設けられて、前記インパネ開口の車幅方向の端縁向けて前記インパネ開口の面方向に延びる延出板部を有し、The bag-side engaging piece is provided at the vehicle rear side end portion of the knee airbag body and includes an extending plate portion extending in the plane direction of the instrument panel opening toward the edge of the instrument panel opening in the vehicle width direction. have
前記インパネ側係合片は、前記ニーエアバッグ体が前記インパネ開口に取り付けられた状態で、前記延出板部の車両前方側で当該延出板部に対向する対向部を備え、The instrument panel-side engaging piece includes a facing portion that faces the extending plate portion on the vehicle front side of the extending plate portion in a state where the knee airbag body is attached to the instrument panel opening,
前記インパネ側係合片は、前記対向部より車両前方側に設けられて、前記バッグ側係合片を係合させる係合部と、前記対向部と前記係合部とに連続されて、車両前後方向に延びる連続部と、を有していることを特徴とするニーエアバッグ取付け構造。The instrument panel-side engaging piece is provided on the front side of the vehicle from the facing portion, and is continuous with an engaging portion that engages the bag-side engaging piece, and the facing portion and the engaging portion. A knee airbag mounting structure, comprising: a continuous portion extending in the front-rear direction. 前記バッグ側係合片には、前記延出板部の前記ニーエアバッグ本体から離れた端部に連続されて、前記連続部に対向する対向面が設けられていることを特徴とする請求項２に記載のニーエアバッグ取付け構造。 3. The bag-side engaging piece is provided with a facing surface that is continuous with an end portion of the extending plate portion remote from the knee airbag body and faces the continuous portion. 2. The knee airbag mounting structure according to 2. 前記カバー部は、前記ニーエアバッグ本体を覆うカバー本体を有し、
前記カバー本体には、車幅方向に連続されるティアラインが設けられ、
前記対向部は、前記ティアラインの延長線上に交差する方向に延びていることを特徴とする請求項１～３のうち何れか一項に記載のニーエアバッグ取付け構造。 The cover portion has a cover body that covers the knee airbag body,
The cover body is provided with a tear line continuous in the vehicle width direction,
The knee airbag mounting structure according to any one of claims 1 to 3, wherein the opposing portion extends in a direction intersecting the extended line of the tear line. 前記インパネ側係合片には、前記対向部の前記ニーエアバッグ体側の端部に連続されて、車両前方に延びる延在部が設けられていることを特徴とする請求項１～４のうち何れか一項に記載のニーエアバッグ取付け構造。
Among claims 1 to 4, the instrument panel-side engaging piece is provided with an extending portion that is continuous with an end portion of the opposing portion on the side of the knee airbag body and extends forward of the vehicle. The knee airbag mounting structure according to any one of the items.
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JP2020032797A (en) 2020-03-05

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