JP2000085503A - Occupant crash protection structure in upper part of automobile body - Google Patents
Occupant crash protection structure in upper part of automobile bodyInfo
- Publication number
- JP2000085503A JP2000085503A JP10254165A JP25416598A JP2000085503A JP 2000085503 A JP2000085503 A JP 2000085503A JP 10254165 A JP10254165 A JP 10254165A JP 25416598 A JP25416598 A JP 25416598A JP 2000085503 A JP2000085503 A JP 2000085503A
- Authority
- JP
- Japan
- Prior art keywords
- energy absorbing
- absorbing body
- energy
- interior trim
- interior material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Body Structure For Vehicles (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、2次衝突における
乗員保護のための車体構造において、パネルと内装材の
間にエネルギー吸収材を設けることにより、乗員に対す
る衝撃エネルギーを吸収する構造に関するものであり、
特に、車体のフロントピラー、センターピラー、リヤピ
ラー、ルーフサイドレール等に適用されるものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle body structure for protecting an occupant in a secondary collision, in which an energy absorbing material is provided between a panel and an interior material to absorb impact energy to the occupant. Yes,
In particular, the present invention is applied to a front pillar, a center pillar, a rear pillar, a roof side rail, and the like of a vehicle body.
【0002】[0002]
【従来の技術】自動車の安全性については、これまで主
に衝突した際の車両の変形防止や衝突エネルギー吸収構
造について検討されてきた(1次衝突)。しかし、乗員
にできるだけ致命傷を与えない観点からすれば、乗員が
車両衝突の反動にて車両内部に2次衝突する際の衝突エ
ネルギー吸収構造も大変重要になってきた。2. Description of the Related Art With respect to the safety of an automobile, studies have been mainly made on prevention of deformation of the vehicle upon collision and a structure for absorbing collision energy (primary collision). However, from the viewpoint of preventing fatal injury to the occupant as much as possible, the collision energy absorbing structure when the occupant makes a secondary collision inside the vehicle due to the recoil of the vehicle collision has also become very important.
【0003】このような2次衝突においては、人に与え
る荷重を一定以下に抑えつつ、少ない変位にて高エネル
ギー吸収できる構造が不可欠となる。2次衝突対策とし
ての従来技術としては、自動車の車体のフロントピラー
内側に配置する内装材であるピラーガーニッシュとの間
に空間を設け、エネルギー吸収用の金属ブラケットを前
記空間に配置した保護構造が提案されている(特開平8
−113160)。In such a secondary collision, a structure capable of absorbing high energy with a small displacement while keeping the load applied to a person at a certain level or less is indispensable. As a conventional technique as a secondary collision countermeasure, a protection structure in which a space is provided between a pillar garnish which is an interior material disposed inside a front pillar of a vehicle body and a metal bracket for energy absorption is disposed in the space. It has been proposed (Japanese Unexamined Patent Application Publication No.
-113160).
【0004】[0004]
【発明が解決しようとする課題】通常、フロントピラ
ー、その他のピラーでは、インナパネルへの衝突の際に
発生する衝撃荷重をやわらげるため、従来例に示すよう
な適度な薄板金属ブラケットを配置させる。しかし、乗
員の頭部が衝突した際、前記薄板金属ブラケットは局部
変形を起こし、適度な荷重に達するために、ある程度ス
トロークを有してしまう。Normally, in the front pillar and other pillars, an appropriate thin metal bracket as shown in the prior art is arranged in order to reduce an impact load generated upon collision with the inner panel. However, when the occupant's head collides, the thin metal bracket is locally deformed and has a certain stroke to reach an appropriate load.
【0005】また、変形が進むにつれて、受圧される面
積が増えると共に、変形部分が徐々に移動するため、荷
重が徐々に増加してしまうため、エネルギー吸収効率が
悪く、乗員の頭部衝突を充分に吸収しようとすると、ス
トロークを大きく取る必要が発生する。そのため、居住
性および視認性が損なわれてしまう。Further, as the deformation progresses, the area under pressure increases, and the deformed portion moves gradually, so that the load gradually increases, so that the energy absorption efficiency is poor and the occupant's head collision can be sufficiently prevented. If it is attempted to absorb the pressure, it is necessary to take a large stroke. Therefore, the livability and visibility are impaired.
【0006】[0006]
【課題を解決するための手段】本発明は、車体のフロン
トピラー、その他のピラーのインナパネルと内装材(ガ
ーニッシュ)との間に設けられたエネルギー吸収間隔
と、内装材とは別個に成形され、インナパネルおよび内
装材の一方に取り付けられて、エネルギー吸収間隔内に
配置されるエネルギー吸収体を備え、前記エネルギー吸
収体を中空形状に形成すると共に、前記内装材部に剛体
部を設けると共に、前記パネル部側と前記内装材部側を
つなぐ部位を略くの字形状に形成したものである。According to the present invention, an energy absorbing space provided between an inner panel of a front pillar of a vehicle body or other pillars and an interior material (garnish) and an interior material are formed separately. Attached to one of the inner panel and the interior material, comprising an energy absorber disposed within an energy absorption interval, forming the energy absorber in a hollow shape, and providing a rigid portion in the interior material portion, A portion connecting the panel portion side and the interior material portion side is formed in a substantially rectangular shape.
【0007】[0007]
【発明の実施の形態】本発明に係る中空断面からなるエ
ネルギー吸収材の形状において、内装材部と剛体部を設
け、かつパネル部側と内装材部側をつなぐ部位を略くの
字形状に形成した。BEST MODE FOR CARRYING OUT THE INVENTION In the shape of an energy absorbing material having a hollow cross section according to the present invention, an interior material portion and a rigid body portion are provided, and a portion connecting a panel portion side and an interior material portion side is formed into a substantially rectangular shape. Formed.
【0008】これにより、初期の局部変形を抑え、すみ
やかに適度荷重へと達し、その後変形部位が略くの字形
状の各項点で一定であるため、荷重の上昇を抑えて、理
想的なエネルギー吸収が可能となる。特に略くの字形状
の辺長を1:1にすると最も良い。As a result, the initial local deformation is suppressed, the load reaches the appropriate load promptly, and the deformed portion is constant at each of the substantially V-shaped points. Energy absorption becomes possible. In particular, it is best if the side length of the substantially rectangular shape is 1: 1.
【0009】[0009]
【実施例】本発明は、図1ないし図2に示すように、フ
ロントピラー1は、アウタパネル11、インナパネル1
2,13、ガーニッシュ14,エネルギー吸収体15等
から構成されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the present invention, as shown in FIGS. 1 and 2, a front pillar 1 comprises an outer panel 11, an inner panel 1
2, 13, a garnish 14, an energy absorber 15, and the like.
【0010】エネルギー吸収体15は、アルミ押出成形
にて中空断面に形成され、ガーニッシュ14に接着剤に
て接着、もしくはインナパネル13に図示されていない
スクリュにて締結されている。The energy absorber 15 is formed in a hollow cross section by aluminum extrusion, and is bonded to the garnish 14 with an adhesive or fastened to the inner panel 13 with a screw (not shown).
【0011】上記エネルギー吸収体15は、図3に示す
ように、アルミ押出材にて形成され、エネルギー吸収体
15の頭部衝突範囲であるガーニッシュ14側を一般部
に比べて厚くすることにより、剛体部15aを形成する
と共に、剛体部15a、インナパネル12側と接する一
般部15bとをつなぐ接続部15c、15dを略くの字
形状にする。As shown in FIG. 3, the energy absorber 15 is formed of an extruded aluminum material, and the garnish 14, which is the head collision area of the energy absorber 15, is made thicker than the general part. In addition to forming the rigid portion 15a, the connecting portions 15c and 15d connecting the rigid portion 15a and the general portion 15b that is in contact with the inner panel 12 are formed in a substantially rectangular shape.
【0012】これにより、図4に示すようにフロントピ
ラー1に衝突した頭部2により、エネルギー吸収体15
の剛体部15aを介して接続部15c、15dの各項
点、15c´、15c´´、15c´´´、15d´、
15d´´、15d´´´が変形が直ちに開始され、終
止変形部位が変わらず、エネルギー吸収を行う。これに
より、図5に示すような理想的なエネルギー吸収がなさ
れる。As a result, the head 2 colliding with the front pillar 1 as shown in FIG.
, 15c ′, 15c ″, 15c ″ ″, 15d ′,
Deformation of 15d ″ and 15d ″ ″ is started immediately, and the end deformation portion remains unchanged, and energy is absorbed. Thereby, ideal energy absorption as shown in FIG. 5 is performed.
【0013】[0013]
【発明の効果】ピラー内装材を内方へ大きくすることな
しに、乗員頭部の傷害値(安全基準)に対して、効率的
にエネルギー吸収ができる。さらに、車両の視認性の向
上が図れる。According to the present invention, energy can be efficiently absorbed with respect to the injury value (safety standard) of the occupant's head without increasing the pillar interior material inward. Further, the visibility of the vehicle can be improved.
【図1】本発明における自動車のピラー部分を示す。FIG. 1 shows a pillar portion of an automobile according to the present invention.
【図2】本発明におけるピラー部分の断面図を示す(I
−I断面)。FIG. 2 shows a cross-sectional view of a pillar portion in the present invention (I
-I cross section).
【図3】実施例1におけるピラー部断面図を示す。FIG. 3 is a sectional view of a pillar portion according to the first embodiment.
【図4】実施例1におけるピラー部断面の変形を示す。FIG. 4 shows deformation of a cross section of a pillar portion in the first embodiment.
【図5】実施例1における変位−荷重曲線を示す。FIG. 5 shows a displacement-load curve in Example 1.
Claims (1)
おける乗員保護のための車体構造において、前記パネル
と内装材との間に設けられたエネルギー吸収間隔と、前
記内装材とは別個に成形され、前記パネルおよび前記内
装材の一方に取り付けられて、前記間隔内に配置される
エネルギー吸収体とを備え、前記エネルギー吸収体を中
空形状に形成すると共に、前記内装材部に剛体部を設け
ると共に、前記パネル部側と前記内装材部側をつなぐ部
位を略くの字形状に形成したことを特徴とする衝撃エネ
ルギー吸収構造。1. A vehicle body structure comprising a panel and an interior material for protecting an occupant in a secondary collision, wherein an energy absorption space provided between the panel and the interior material is formed separately from the interior material. An energy absorber attached to one of the panel and the interior material, the energy absorber being disposed within the space, forming the energy absorber in a hollow shape, and providing a rigid portion in the interior material portion. An impact energy absorbing structure, wherein a portion connecting the panel portion side and the interior material portion side is formed in a substantially rectangular shape.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10254165A JP2000085503A (en) | 1998-09-08 | 1998-09-08 | Occupant crash protection structure in upper part of automobile body |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10254165A JP2000085503A (en) | 1998-09-08 | 1998-09-08 | Occupant crash protection structure in upper part of automobile body |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2000085503A true JP2000085503A (en) | 2000-03-28 |
Family
ID=17261144
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10254165A Pending JP2000085503A (en) | 1998-09-08 | 1998-09-08 | Occupant crash protection structure in upper part of automobile body |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2000085503A (en) |
-
1998
- 1998-09-08 JP JP10254165A patent/JP2000085503A/en active Pending
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