JP4228737B2 - Vehicle side door - Google Patents

Vehicle side door Download PDF

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Publication number
JP4228737B2
JP4228737B2 JP2003076878A JP2003076878A JP4228737B2 JP 4228737 B2 JP4228737 B2 JP 4228737B2 JP 2003076878 A JP2003076878 A JP 2003076878A JP 2003076878 A JP2003076878 A JP 2003076878A JP 4228737 B2 JP4228737 B2 JP 4228737B2
Authority
JP
Japan
Prior art keywords
core
vehicle
stiffener
cushion member
occupant
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.)
Expired - Fee Related
Application number
JP2003076878A
Other languages
Japanese (ja)
Other versions
JP2004284436A (en
Inventor
正人 高澤
晋 久野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Motors Corp
Original Assignee
Mitsubishi Motors Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Motors Corp filed Critical Mitsubishi Motors Corp
Priority to JP2003076878A priority Critical patent/JP4228737B2/en
Publication of JP2004284436A publication Critical patent/JP2004284436A/en
Application granted granted Critical
Publication of JP4228737B2 publication Critical patent/JP4228737B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Description

【0001】
【発明の属する技術分野】
本発明は、車両に使用されるサイドドア、とくに、車両の側面衝突に対して乗員を保護するためのサイドドアに関する。
【0002】
【従来の技術】
図3に例示されているように、従来の車両用サイドドア1は、ドアガラスの昇降軌跡2を車幅方向に挟んで、アウタパネル3に近接配置された比較的硬質のコア4と、インナパネル5側のトリム6に取り付けられた比較的軟質のクッション部材7とが配置されていて、車両の側面衝突時にサイドドア1が受けた衝撃により、コア4が車室内側へ変位してクッション部材7を押圧し、クッション部材7が乗員の腰部を先ず早めに車室内側へ押し込むようにして、乗員に対する衝撃の緩和作用を果たすと同時に、乗員の胸部に対する衝撃入力を低減させることにより、乗員を保護するように構成されている。
【0003】
一方、車両の側面衝突時に変形して衝撃エネルギを吸収するインパクトバー8がサイドドア1内に取り付けられており、コア4はインパクトバー8に固定されたブラケット9とインナパネル5の下部に取り付けられたステー10とにそれぞれボルト止めされて、上記の位置へ取り付けられているので、ブラケット9やステー10等の取付け部品が必要となると同時に、それらの取付け工数が増大し、かつ、コア4がインパクトバー8とインナパネル5の下部とに跨がって取り取り付けられていて、コア4の取付け精度を高めることが難しいため、コア4の取付けコストが増大することは避けられなかった。
【0004】
しかも、コア4が取り付けられているインパクトバー8とインナパネル5の下部とには強度上大きな相違があるため、車両の側面衝突時に受けた衝撃によりコア4が車室内側へ変位する際、コア4が図示の取付け状態から略車両前後方向の軸を中心として車室内側へ回転した傾き状態でクッション部材7を押圧することとなって、クッション部材7による緩衝作用を常に効果的に発揮させることができるとは限らず、また、乗員腰部の略車幅方向にコア4を配置するためには、ステー10が上下に比較的長くなるため、これが車体振動に共振して異雑音を発生させるおそれがあり、さらに、車室内側へ変位するコア4がインナパネル5と干渉しないように、インナパネル5に窓11が形成されているが、上下に比較的長いステー10が傾いた状態で車室内側へコア4を変位させることを考慮して、窓11を比較的大きく設定しなければならないという問題があった。
【0005】
なお、本発明に関連する適切な文献公知発明を特許出願時に特許出願人は知らないものである。
【0006】
【発明が解決しようとする課題】
本発明は、車両の側面衝突に対して乗員を保護するため、車両のサイドドア内にコアとクッション部材とを略車幅方向に配置する場合に、その所要コストを容易に軽減させようとするものである。
【0007】
【課題を解決するための手段】
このため、本発明にかかる車両用サイドドアは、アウタパネルの内面に固定されて略車両前後方向に延び断面略ハット状でその突部が車室内側に配置され上記アウタパネルの張り剛性を高める単一のスティフナと、上下方向の中央部分に形成された凹部が上記スティフナの突部と係合して上記スティフナの突部にボルト止めされた比較的硬質のコアと、上記コアの略車幅方向内側でインナパネルまたは上記インナパネルに固定のトリムに取り付けられた比較的軟質のクッション部材とを有し、上記コア及び上記クッション部材が乗員の腰部付近の高さに配置されている。
【0008】
従って、車両の側面衝突時には、サイドドアが受けた衝撃によりコアが車室内側へ変位してクッション部材を押圧し、クッション部材が乗員の腰部を先ず早めに車室内側へ押し込むようにして、乗員に対する衝撃の緩和作用を果たすと同時に、乗員の胸部に対する衝撃入力を低減させて、乗員を効果的に保護することができる一方、コアは上下方向の中央部分に形成された凹部が断面略ハット状の単一スティフナにおける車室内側突部と係合してその突部にボルト止めされていて、その取付け構造を簡単にすることができると共に、取付け精度を容易に高めることが可能となる。
【0009】
【発明の実施の形態】
以下、本発明の実施形態例について、前記従来装置との同等部分にはそれぞれ同一符号を付けて説明する。
【0010】
図1及び図2において、車両用サイドドア1は、アウタパネル3の内面に略車両前後方向に延びる断面略ハット状のスティフナ20がスポット溶接により固定されて、スティフナ20によりアウタパネル3の張り剛性が高められており、他方、樹脂製であるが肉厚が大きくてリブが多数形成されているため全体的に比較的硬質の袋状コア21が、その凹部22をスティフナ20の中央突部23と係合させた状態でボルト止めされている。
【0011】
また、ドアガラスの昇降軌跡2を車幅方向に挟んだアウタパネル3の反対側で、肉厚が小さくてリブが少ないため全体的に比較的軟質の樹脂製袋状クッション部材24がインナパネル5側のトリム6に取り付けられ、クッション部材24はインナパネル5の窓11を挿通して、コア21へ向かって延びている。
【0012】
従って、車両の側面衝突時にサイドドア1が受けた衝撃により、アウタパネル3の内面に固定されたスティフナ20の変形に伴いコア21が車室内側へ変位してクッション部材24を押圧し、クッション部材24が乗員の腰部を先ず早めに車室内側へ押し込むようにして、乗員に対する衝撃の緩和作用を果たすと同時に、乗員の胸部に対する衝撃入力を低減させることによって、乗員を保護することができる。
【0013】
この場合、コア21はスティフナ20の単一部品に取り付けられているため、コア21の配置に要する部品点数が従来装置の場合よりも少なくてすむと同時に、コア21の取付け精度を容易に高めて、コア21の取付け工数を大幅に軽減させることが可能となるので、コア21の取付けコストを低減させることができる。
【0014】
また、アウタパネル3の内面に固定されたスティフナ20にコア21が取り付けられていて、常時は車体振動がコア21の配置に影響を及ぼすことはないので、コア21が設けられていても異雑音が発生するおそれは全くない。
【0015】
さらに、スティフナ20は略車両前後方向に延びていて、上下方向よりも車幅方向に変形しやすいため、車両の側面衝突時、スティフナ20に取り付けられたコア21はほぼ同じ姿勢を保ったまま傾くことなく略車幅方向内側へ変位して、クッション部材24を確実に略車幅方向内側へ押圧することとなるので、クッション部材24により常に効果的な緩衝作用を行わせることができると共に、コア21の変位軌跡がほぼ一定化されるため、コア21により押圧されるクッション部材24及びクッション部材24が内部に配置されている窓11を小型化できることとなって、サイドドア1内の狭い空間における各部材の配置等に関する自由度を容易に高めることができる利点がある。
【0016】
なお、上記実施形態例では、アウタパネルの張り剛性を高めるスティフナが略車両前後方向に延びているが、この種スティフナは車両前後方向と交叉する方向、例えば、略上下方向に延びていても、上記実施形態例の場合と同等の作用効果を奏することができるのはいうまでもない。
【0017】
【発明の効果】
本発明にかかる車両用サイドドアにあっては、コアの取付け構造を簡単にできると共に、コアの取付け精度を容易に高めることができるので、コアの取付けコストを低減させることができる長所がある。
【図面の簡単な説明】
【図1】本発明の実施形態例における概略縦断面図。
【図2】上記実施形態例の要部側面図。
【図3】従来装置の概略縦断面図。
【符号の説明】
1 サイドドア
3 アウタパネル
5 インナパネル
6 トリム
20 スティフナ
21 コア
24 クッション部材
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a side door used for a vehicle, and more particularly to a side door for protecting an occupant against a side collision of the vehicle.
[0002]
[Prior art]
As illustrated in FIG. 3, the conventional vehicle side door 1 includes a relatively hard core 4 disposed in the vicinity of the outer panel 3 with an up / down locus 2 of the door glass sandwiched in the vehicle width direction, and an inner panel. A relatively soft cushion member 7 attached to the trim 6 on the 5 side is arranged, and the core 4 is displaced toward the vehicle interior side by the impact received by the side door 1 at the time of a side collision of the vehicle, and the cushion member 7. The cushion member 7 first pushes the occupant's lower back into the passenger compartment, thereby mitigating the impact on the occupant and at the same time reducing the impact input to the occupant's chest to protect the occupant Is configured to do.
[0003]
On the other hand, an impact bar 8 that is deformed at the time of a side collision of the vehicle and absorbs impact energy is attached to the side door 1, and the core 4 is attached to a bracket 9 fixed to the impact bar 8 and a lower portion of the inner panel 5. Since the brackets 10 and the stays 10 are respectively bolted to the stays 10 and attached to the above positions, mounting parts such as the bracket 9 and the stays 10 are required, and at the same time, the mounting man-hours are increased, and the core 4 is impacted. Since it is attached over the bar 8 and the lower part of the inner panel 5 and it is difficult to increase the mounting accuracy of the core 4, it is inevitable that the mounting cost of the core 4 increases.
[0004]
Moreover, since there is a great difference in strength between the impact bar 8 to which the core 4 is attached and the lower portion of the inner panel 5, when the core 4 is displaced to the vehicle interior side due to an impact received during a side collision of the vehicle, the core The cushion member 7 is pressed in a tilted state in which the wheel 4 is rotated from the mounting state shown in the drawing to the vehicle interior side about a substantially vehicle longitudinal axis, so that the cushioning action by the cushion member 7 is always effectively exhibited. In addition, in order to dispose the core 4 in the vehicle width direction of the occupant's waist, the stay 10 is relatively long in the vertical direction, and this may resonate with vehicle body vibrations and generate noise. In addition, a window 11 is formed in the inner panel 5 so that the core 4 that is displaced toward the vehicle interior side does not interfere with the inner panel 5, but a relatively long stay 10 is tilted up and down. Considering that to displace the core 4 to the cabin internal in state, there is a problem that must be relatively large window 11.
[0005]
In addition, the patent applicant does not know an appropriate document known invention related to the present invention at the time of filing a patent.
[0006]
[Problems to be solved by the invention]
The present invention attempts to easily reduce the required cost when a core and a cushion member are disposed in a substantially vehicle width direction in a side door of a vehicle in order to protect an occupant against a side collision of the vehicle. Is.
[0007]
[Means for Solving the Problems]
Single Therefore, the vehicle side door according to the present invention, which is secured to the inner surface of the outer panel is arranged the projections on the vehicle interior side in a substantially hat-shaped extending substantially in longitudinal direction of the vehicle increasing the tensile rigidity of the outer panel A stiffener, a relatively hard core with a concave portion formed in the central portion in the vertical direction engaged with the projection of the stiffener and bolted to the projection of the stiffener, and an inner side in the vehicle width direction of the core And a relatively soft cushion member attached to the inner panel or a trim fixed to the inner panel, and the core and the cushion member are disposed at a height near the occupant's waist.
[0008]
Therefore, at the time of a side collision of the vehicle, the core is displaced toward the vehicle interior side due to the impact received by the side door and presses the cushion member, and the cushion member first pushes the occupant's waist into the vehicle interior side as soon as possible. The impact input to the chest of the occupant can be reduced and the occupant can be effectively protected at the same time, while the concave portion formed in the central portion in the vertical direction has a substantially hat-shaped cross section. The single stiffener is engaged with the vehicle interior side protrusion and is bolted to the protrusion , so that the mounting structure can be simplified and the mounting accuracy can be easily increased.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
In the following, embodiments of the present invention will be described with the same reference numerals assigned to the same parts as those of the conventional apparatus.
[0010]
1 and 2, the vehicular side door 1 has a substantially hat-shaped stiffener 20 extending in the vehicle front-rear direction fixed to the inner surface of the outer panel 3 by spot welding, and the stiffness of the outer panel 3 is increased by the stiffener 20. On the other hand, since it is made of resin but has a large wall thickness and a large number of ribs, the overall relatively hard bag-like core 21 engages with the recess 22 with the central projection 23 of the stiffener 20. It is bolted in the combined state.
[0011]
Further, on the opposite side of the outer panel 3 with the door glass lifting locus 2 sandwiched in the vehicle width direction, since the wall thickness is small and the ribs are small, the overall relatively soft resin bag-like cushion member 24 is on the inner panel 5 side. The cushion member 24 is inserted through the window 11 of the inner panel 5 and extends toward the core 21.
[0012]
Accordingly, due to the impact received by the side door 1 at the time of a side collision of the vehicle, the core 21 is displaced toward the vehicle interior side with the deformation of the stiffener 20 fixed to the inner surface of the outer panel 3 to press the cushion member 24. However, it is possible to protect the occupant by pushing the occupant's waist into the vehicle interior as soon as possible to reduce the impact input to the occupant's chest while simultaneously reducing the impact on the occupant.
[0013]
In this case, since the core 21 is attached to a single part of the stiffener 20, the number of parts required for the arrangement of the core 21 can be smaller than in the case of the conventional device, and at the same time, the mounting accuracy of the core 21 can be easily increased. Since the man-hour for attaching the core 21 can be greatly reduced, the cost for attaching the core 21 can be reduced.
[0014]
Further, since the core 21 is attached to the stiffener 20 fixed to the inner surface of the outer panel 3 and the vehicle body vibration does not affect the arrangement of the core 21 at all times, even if the core 21 is provided, different noise is generated. There is no risk of it occurring.
[0015]
Furthermore, since the stiffener 20 extends substantially in the vehicle front-rear direction and is more easily deformed in the vehicle width direction than in the vertical direction, the core 21 attached to the stiffener 20 tilts while maintaining substantially the same posture at the time of a side collision of the vehicle. Without being displaced substantially inward in the vehicle width direction, and the cushion member 24 is reliably pressed substantially inward in the vehicle width direction, so that the cushion member 24 can always provide an effective buffering action and the core. Since the displacement trajectory of 21 is substantially constant, the cushion member 24 pressed by the core 21 and the window 11 in which the cushion member 24 is disposed can be reduced in size, so that in a narrow space in the side door 1. There is an advantage that the degree of freedom regarding the arrangement and the like of each member can be easily increased.
[0016]
In the above embodiment, the stiffener for increasing the rigidity of the outer panel extends substantially in the vehicle front-rear direction. However, even if this kind of stiffener extends in the direction crossing the vehicle front-rear direction, for example, substantially vertical, Needless to say, the same effects as those of the embodiment can be achieved.
[0017]
【The invention's effect】
In the vehicle side door according to the present invention, the core mounting structure can be simplified, and the core mounting accuracy can be easily increased, so that the core mounting cost can be reduced.
[Brief description of the drawings]
FIG. 1 is a schematic longitudinal sectional view of an embodiment of the present invention.
FIG. 2 is a side view of a main part of the embodiment.
FIG. 3 is a schematic longitudinal sectional view of a conventional apparatus.
[Explanation of symbols]
1 Side door 3 Outer panel 5 Inner panel 6 Trim 20 Stiffener 21 Core 24 Cushion member

Claims (1)

アウタパネルの内面に固定されて略車両前後方向に延び断面略ハット状でその突部が車室内側に配置され上記アウタパネルの張り剛性を高める単一のスティフナと、上下方向の中央部分に形成された凹部が上記スティフナの突部と係合して上記スティフナの突部にボルト止めされた比較的硬質のコアと、上記コアの略車幅方向内側でインナパネルまたは上記インナパネルに固定のトリムに取り付けられた比較的軟質のクッション部材とを有し、上記コア及び上記クッション部材が乗員の腰部付近の高さに配置された車両用サイドドア。A single stiffener that is fixed to the inner surface of the outer panel and extends substantially in the longitudinal direction of the vehicle and has a substantially cross-sectional shape and is disposed on the vehicle interior side to enhance the rigidity of the outer panel, and is formed at the central portion in the vertical direction. A relatively hard core with a recess engaged with the projection of the stiffener and bolted to the projection of the stiffener, and attached to the inner panel or the trim fixed to the inner panel on the inner side in the vehicle width direction And a relatively soft cushion member, wherein the core and the cushion member are arranged at a height in the vicinity of the waist of the occupant.
JP2003076878A 2003-03-20 2003-03-20 Vehicle side door Expired - Fee Related JP4228737B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2003076878A JP4228737B2 (en) 2003-03-20 2003-03-20 Vehicle side door

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003076878A JP4228737B2 (en) 2003-03-20 2003-03-20 Vehicle side door

Publications (2)

Publication Number Publication Date
JP2004284436A JP2004284436A (en) 2004-10-14
JP4228737B2 true JP4228737B2 (en) 2009-02-25

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5008458B2 (en) * 2007-05-24 2012-08-22 富士重工業株式会社 Car body side structure
JP6655113B2 (en) 2018-03-19 2020-02-26 本田技研工業株式会社 Body structure

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05238260A (en) * 1992-02-28 1993-09-17 Toyota Motor Corp Occupant crash protection device for automobile
JP3382327B2 (en) * 1993-12-14 2003-03-04 本田技研工業株式会社 Side impact absorbing structure for vehicles
JPH09272342A (en) * 1996-02-07 1997-10-21 Mazda Motor Corp Door structure of automobile
JP3772447B2 (en) * 1997-03-11 2006-05-10 マツダ株式会社 Car door structure
JP3431843B2 (en) * 1998-10-30 2003-07-28 ダイハツ工業株式会社 Car door structure
JP4360050B2 (en) * 2001-06-11 2009-11-11 三菱自動車工業株式会社 Shock absorber

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