JP4045967B2

JP4045967B2 - Side reinforcement structure for vehicles

Info

Publication number: JP4045967B2
Application number: JP2003022557A
Authority: JP
Inventors: 孝浩 ▲高▼橋
Original assignee: Nissan Motor Co Ltd
Current assignee: Nissan Motor Co Ltd
Priority date: 2003-01-30
Filing date: 2003-01-30
Publication date: 2008-02-13
Anticipated expiration: 2023-01-30
Also published as: JP2004231060A

Description

【０００１】
【発明の属する技術分野】
本発明は、車両を補強して車両側面から入力される荷重を有効に分散させる車両用側面補強構造に関する。
【０００２】
【従来の技術】
従来から、車両の側面衝突時に車両のドア又はピラーから入力される衝突荷重を効果的に分散させることを目的として、シートバック及びシートクッションの内部にそれぞれ第１補強部材、第２補強部材を設け、第１・第２補強部材の外端を左右のドアの上下部に設けた第３・第４補強部材にそれぞれ対峙させるとともに、第１・第２補強部材の内端をセンタートンネルの内部に設けた荷重伝達部材に対峙させたものがある（例えば特許文献１）。
【０００３】
このものによれば、車両の側面衝突により一方（例えば左側）のドアに入力された荷重が一方（例えば左側）の第１・第２補強部材、センタートンネル、他方（例えば右側）の第１・第２補強部材を介して他方（例えば右側）のドアに伝達される。したがって側面衝突による入力荷重が反対側のドアに伝達されて効果的に分散されることとなる。
【０００４】
【特許文献１】
特開平１１−２２２０８８号公報
【０００５】
【発明が解決しようとする課題】
しかしながら、この従来のものにおいては、車両に対して側面の高い位置（例えば車両のドアウィンドウ近傍位置）から荷重が入力された場合に、有効に入力荷重を分散することができない。
【０００６】
例えば、図５（ａ）及び図５（ｂ）にその模式図を示すように、車両２１の側面２１ａの高い位置２１ｂから移動車両２２による荷重入力があった場合は、その移動車両２２により入力される荷重Ｆｓが主としてまず第１補強部材２３のみに伝達されてしまう。それにより第１補強部材２３にその内端２３ａを中心とする回転力が加えられて図中右方向に回転してしまい、結果的に第１補強部材２３が荷重Ｆｓを分担できず、有効に荷重Ｆｓを分散することができなくなってしまう。
【０００７】
本発明は上記の事情に鑑みて為されたもので、車両に対して側面の高い位置から荷重が入力された場合であっても、両補強部材が荷重を分担することができ、有効に荷重を分散することができる車両用側面補強構造を提供することを課題とする。
【０００８】
【課題を解決するための手段】
上記の課題を解決するために、本発明の請求項に係る車両用側面補強構造は、車両のシートのシートバックに、該車両の車室側面側から車室中央側に向けて下方に傾斜するように前記車両の幅方向に沿って延びる上側補強部材と、前記上側補強部材よりも下方に該車両の車室側面側から車室中央側に向けて該車両の幅方向に沿って略水平に延びる下側補強部材とが設けられ、前記下側補強部材の前記車室側面側端部と前記車室側面との間隔が、前記上側補強部材の前記車室側面側端部と前記車室側面との間隔よりも小く、かつ前記下側補強部材の前記車室側面側端部が、前記上側補強部材の前記車室側面側端部よりも該車室側面側に向けて突出しているとともに、前記両補強部材の車室側面側端部近傍および前記車室中央側端部近傍において該両補強部材がそれぞれ側面側連結部材および中央側連結部材によって連結され、前記両補強部材の前記車室中央側端部が前記車室中央側に設けられた荷重伝達部材に対峙されていることを特徴とする。
【０００９】
この請求項に係る発明によれば、上側補強部材及び下側補強部材の車室側面側端部近傍および車室中央側端部近傍において両補強部材が側面側連結部材および中央側連結部材によって連結されており、下側補強部材の車室側面側端部と車室側面との間隔が、上側補強部材の車室側面側端部と車室側面との間隔よりも小く、かつ下側補強部材の車室側面側端部が、上側補強部材の車室側面側端部よりも車室側面側に向けて突出しているので、車両に対して側面の高い位置から荷重が入力された場合であっても上側補強部材が中央側端部を中心として下側補強部材から独立して回転することはない。したがって、両補強部材が入力荷重を分担することができ、有効に入力荷重を分散することができる。
【００１０】
【発明の実施の形態】
以下、本発明の実施の形態に係る車両用側面補強構造を、図面を参照しつつ説明する。
【００１１】
図１は、この車両用側面補強構造を備えた車両１の要部斜視図である。この車両１は車室Ｒを有している。その車室Ｒは乗員が乗り込むためのスペースであり、車幅方向左右が車体パネルとしての運転席側ドアパネル２ａ、助手席側ドアパネル２ｂで囲まれている。
【００１２】
その車室Ｒ内には運転席シート３、助手席シート４が備えられている。車両用側面補強構造は、運転席シート３及び助手席シート４の内部にそれぞれ設けられており、車両１の中央を通り前後に延びる鉛直面に対して対称である他は同様の構造であるので、以下、運転席側についてのみ説明することとする。
【００１３】
図２は、この車両用側面補強構造を備えた運転席シート３の内部構造を示す図である。この運転席シート３は乗員（運転者）の頭部を支えるヘッドレスト５、乗員の背中や腰等の上半身を支えるシートバック６、乗員が着座するためのシートクッション７により大略構成される。
【００１４】
シートバック６の内部には、シートバック６の構造体としてのシートバックフレーム８が設けられている。このシートバックフレーム８はシートバック６の強度を確保するために鉄・アルミニウム等の金属で構成されたフレームであり、正面から見て略長方形とされている。
【００１５】
シートバックフレーム８には、図に示すように上側補強部材９と下側補強部材１０とが固定されている。これらの両補強部材９，１０は、この車両１に側面から移動車両１１（図３参照）による荷重入力があった場合に、その荷重Ｆを負担して分散させるためのものであり、シートバック６の内部に設けられている。
【００１６】
上側補強部材９は、車室Ｒの側面側すなわち運転席側ドアパネル２ａ側から車室Ｒの中央側に向けて下方に傾斜して車両１の幅方向に沿って延びるように設けられている。下側補強部材１０は、上側補強部材９よりも下方に配置され、かつ、運転席側ドアパネル２ａ側から車室Ｓの中央側に向けて車両１の幅方向に沿って略水平に延びるように設けられている。
【００１７】
車室Ｓの中央側には、荷重伝達部材としてのセンタートンネル１２が形成されており、この上側補強部材９の車室中央側端部（以下、内側端部という）９ａ及び下側補強部材１０の車室中央側端部（以下、内側端部という）１０ａがこのセンタートンネル１２に対峙している。
【００１８】
下側補強部材１０の車室側面側端部（以下、外側端部という）１０ｂは、上側補強部材９の車室側面側端部（以下、外側端部という）９ｂよりも、運転席側ドアパネル２ａ側に向けて突出している。それにより、下側補強部材１０の外側端部１０ｂと運転席側ドアパネル２ａとの間隔（図２中Ｌ１）が、上側補強部材９の外側端部９ｂと運転席側ドアパネル２ａとの間隔（図２中Ｌ２）よりも小さくされている。
【００１９】
下側補強部材１０の外側端部１０ｂを、上側補強部材９の外側端部９ｂよりも運転席側ドアパネル２ａ側に向けて突出させることにより、簡単な構造で下側補強部材１０の外側端部１０ｂと運転席側ドアパネル２ａとの間隔Ｌ１を、上側補強部材９の外側端部９ｂと運転席側ドアパネル２ａとの間隔Ｌ２よりも小さいものとすることができる。
【００２０】
上側補強部材９の内側端部９ａ近傍及び下側補強部材１０の内側端部１０ａ近傍において、両補強部材９，１０が中央側連結部材としての内側ブラケット１３によって連結されている。また、上側補強部材９の外側端部９ｂ近傍及び下側補強部材１０の外側端部１０ｂ近傍において、両補強部材９，１０が側面側連結部材としての外側ブラケット１４によって連結されている。
【００２１】
この両補強部材９，１０と内側ブラケット１３との連結及び両補強部材９，１０と外側ブラケット１４との連結は、例えばボルトによるものであっても、溶接によるものであってもよい。また、上側補強部材９、下側補強部材１０、内側ブラケット１３、外側ブラケット１４が一体に形成されていてもよい。
【００２２】
次に、この車両用側面補強構造を備えた車両１の側面に入力された荷重Ｆが分散される様子を説明する。
【００２３】
図３は、この車両１の側面（この図では運転席側ドア１５）に移動車両１１が接触し、車両１に荷重Ｆが加えられた様子を示す図である。移動車両１１が車両１へと近づいて運転席側ドア１５に接触し車両１に荷重Ｆが入力されると、運転席側ドア１５が変形しつつ運転席シート３に近づく。
【００２４】
下側補強部材１０の外側端部１０ｂと運転席側ドアパネル２ａとの間隔が上側補強部材９の外側端部９ｂと運転席側ドアパネル２ａとの間隔よりも小さくされているので、移動車両１１による荷重Ｆが高い位置１５ａに入力された場合であっても運転席側ドアパネル２ａは上側補強部材９の外側端部９ｂよりも先に下側補強部材１０の外側端部１０ｂに接触する。
【００２５】
その後さらに移動車両１１が車両１へと近づくと運転席側ドア１５の変形が進行し、運転席側ドアパネル２ａが上側補強部材９の外側端部９ｂに接触する。運転席側ドアパネル２ａが接触することにより、上側補強部材９には内側端部９ａを中心として図３中右方向の回転力が加えられる。
【００２６】
しかしながら、下側補強部材１０は、その外側端部１０ｂが上側補強部材９の外側端部９ｂよりも先に運転席側ドアパネル２ａに接触し、かつ、その内側端部１０ａもセンタートンネル１２に接触して運転席側ドアパネル２ａとセンタートンネル１２とに挟まれた状態となっている。さらに外側端部９ｂ，１０ｂ近傍において両補強部材９，１０が外側ブラケット１４によって連結されているので、上側補強部材９に回転力が加えられても、運転席側ドアパネル２ａとセンタートンネル１２とに挟まれた下側補強部材１０によって上側補強部材９の回転が防止されることとなる。
【００２７】
それにより、上側補強部材９は回転してしまうことなくその外側端部９ｂが運転席側ドアパネル２ａに当接し、さらにその内側端部９ａがセンタートンネル１２に当接して上側補強部材９は荷重Ｆを有効に分担することとなる。上側補強部材９により分担された荷重Ｆは、下側補強部材１０により分担された荷重Ｆとともにセンタートンネル１２に伝達され、図示しない助手席側の上側補強部材及び下側補強部材を介して助手席側ドアパネルに向けて有効に分散されることとなる。
【００２８】
なお、本実施の形態においては、上側補強部材９の内側端部９ａ近傍及び下側補強部材１０の内側端部１０ａ近傍においても両補強部材９，１０が内側ブラケット１３によって連結されているので、上側補強部材９の回転はより一層効果的に防止されることとなる。
【００２９】
さらに、本実施の形態においては、運転席側ドア１５の高い位置１５ａから荷重Ｆが入力された場合を説明したが、もちろんそのような場合に限られるものでなく、運転席側ドア１５の低い位置から荷重が入力された場合であっても、本発明は同様の効果を得ることができる。
【００３０】
本実施の形態に係る車両用側面補強構造によれば、下側補強部材１０の外側端部１０ｂと運転席側ドアパネル２ａとの間隔が上側補強部材９の外側端部９ｂと運転席側ドアパネル２ａとの間隔よりも小さくされているので、荷重の入力位置や入力方向に応じて、例え下側補強部材１０の外側端部１０ｂよりも上側補強部材９の外側端部９ｂの方が先に運転席側ドアパネル２ａに接触した場合であっても、その直後に下側補強部材１０の外側端部１０ｂが運転席側ドアパネル２ａに接触することとなる。したがって、下側補強部材９は運転席側ドアパネル２ａとセンタートンネル１２とに挟まれた状態となって、やはり有効に上側補強部材９の回転を防止することがき、入力荷重を両補強部材９，１０で有効に分担することができて、有効に荷重分散することができる。
【００３１】
［変形例］
上記実施の形態においては、上側補強部材９と下側補強部材１０とをそれらの内側端部９ａ，１０ａ近傍及び外側端部９ｂ，１０ｂ近傍において、それぞれ内側ブラケット１３及び外側ブラケット１４により連結したが、図４に示すように、内側ブラケット及び外側ブラケットがシートバックフレーム８であってもよい。
【００３２】
すなわち、シートバックフレーム８自体を両補強部材９，１０を連結する内側ブラケット及び外側ブラケットとして利用し、両補強部材９，１０をその内側端部９ａ，１０ａ近傍及び外側端部９ｂ，１０ｂ近傍においてシートバック８に直接取り付ける。それにより、別途連結部材としての内側ブラケット、外側ブラケットを用意する必要がなく、車両１の部品点数・製造コスト・重量の低減に寄与することができる。
【００３３】
さらに、上側補強部材９と下側補強部材１０とシートバックフレーム８とが一体に形成されていてもよい。それによりさらなる部品点数の削減を行うことができる。
【００３４】
【発明の効果】
以上説明したように、本願の請求項に係る発明によれば、上側補強部材及び下側補強部材の車室側面側端部近傍および車室中央側端部近傍において両補強部材が側面側連結部材および中央側連結部材によって連結されており、下側補強部材の車室側面側端部と車室側面との間隔が、上側補強部材の車室側面側端部と車室側面との間隔よりも小く、かつ下側補強部材の車室側面側端部が、上側補強部材の車室側面側端部よりも車室側面側に向けて突出しているので、車両に対して側面の高い位置から荷重が入力された場合であっても上側補強部材が中央側端部を中心として下側補強部材から独立して回転することはない。したがって、両補強部材が入力荷重を分担することができ、有効に入力荷重を分散することができる。
【図面の簡単な説明】
【図１】本発明の実施の形態に係る車両用側面補強構造を備えた車両の要部斜視図である。
【図２】本発明の実施の形態に係る車両側面補強構造を備えた運転席シートの内部構造を示す図である。
【図３】本発明の実施の形態に係る車両側面補強構造を備えた車両の側面に移動車両が接触して車両に入力荷重が加えられた様子を示す図である。
【図４】本発明の変形例に係る車両側面補強構造を備えた運転席シートの内部構造を示す図である。
【図５】従来の車両用側面補強構造を説明する図であって、（ａ）はその車両用側面補強構造を備えた車両の運転席シートの内部構造を示し、（ｂ）はその車両の側面に移動車両が接触して車両に入力荷重が加えられた様子を示す。
【符号の説明】
Ｒ：車室
１：車両
２ａ：運転席側ドアパネル（車体パネル）
２ｂ：助手席側ドアパネル（車体パネル）
３：運転席シート
４：助手席シート
６：シートバック
８：シートバックフレーム
９：上側補強部材
９ａ，１０ａ：内側端部（車室中央側端部）
９ｂ，１０ｂ：外側端部（車室側面側端部）
１０：下側補強部材
１２：センタートンネル（荷重伝達部材）
１３：内側ブラケット（中央側連結部材）
１４：外側ブラケット（側面側連結部材）
１５：運転席側ドア（側面）[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vehicle side surface reinforcing structure that reinforces a vehicle and effectively distributes a load input from the vehicle side surface.
[0002]
[Prior art]
Conventionally, a first reinforcing member and a second reinforcing member are provided in the seat back and the seat cushion, respectively, for the purpose of effectively dispersing the collision load input from the vehicle door or pillar at the time of a vehicle side collision. The outer ends of the first and second reinforcing members are opposed to the third and fourth reinforcing members provided at the upper and lower portions of the left and right doors, respectively, and the inner ends of the first and second reinforcing members are placed inside the center tunnel. There is one that is opposed to the provided load transmission member (for example, Patent Document 1).
[0003]
According to this, the load input to one (for example, the left side) door due to the side collision of the vehicle is applied to the first (second side) first and second reinforcing members, the center tunnel, and the other (for example, the right side) to the first It is transmitted to the other door (for example, the right side) through the second reinforcing member. Therefore, the input load due to the side collision is transmitted to the opposite door and is effectively dispersed.
[0004]
[Patent Document 1]
Japanese Patent Laid-Open No. 11-2222088
[Problems to be solved by the invention]
However, in this conventional apparatus, when a load is input from a position with a high side surface relative to the vehicle (for example, a position near the door window of the vehicle), the input load cannot be distributed effectively.
[0006]
For example, as shown schematically in FIGS. 5A and 5B, when a load is input by the moving vehicle 22 from a high position 21 b of the side surface 21 a of the vehicle 21, the input is made by the moving vehicle 22. The load Fs to be applied is first transmitted only to the first reinforcing member 23. As a result, a rotational force centered on the inner end 23a is applied to the first reinforcing member 23 and it rotates in the right direction in the figure. As a result, the first reinforcing member 23 cannot effectively share the load Fs. The load Fs cannot be dispersed.
[0007]
The present invention has been made in view of the above circumstances, and even when a load is input from a high position on the side with respect to the vehicle, both reinforcing members can share the load and effectively load the load. It is an object of the present invention to provide a side-surface reinforcing structure for a vehicle that can disperse the fuel.
[0008]
[Means for Solving the Problems]
In order to solve the above-described problems, a vehicle side surface reinforcing structure according to the claims of the present invention is inclined downward in a seat back of a vehicle seat from a vehicle side surface side of the vehicle toward a vehicle center side. The upper reinforcing member extending along the width direction of the vehicle, and substantially horizontally along the width direction of the vehicle from the vehicle side surface side toward the vehicle center side below the upper reinforcing member. A lower reinforcing member that extends, and an interval between the vehicle side surface side end of the lower reinforcing member and the vehicle side surface is such that the vehicle side surface side end of the upper reinforcing member and the vehicle side surface And the compartment side surface end of the lower reinforcing member protrudes toward the vehicle compartment side from the vehicle side surface end of the upper reinforcement member. , In the vicinity of the side surface side end portion of the both reinforcing members and in the vicinity of the center side end portion of the vehicle compartment Both the reinforcing members are connected by a side surface connecting member and the center-side coupling member, respectively, said casing central end portion of both the reinforcing member is opposed to the load transmission member provided in the casing center side Features.
[0009]
According to the invention of this claim, both the reinforcing members are connected by the side-side connecting member and the center-side connecting member in the vicinity of the side surface side end portion and the vicinity of the center side end portion of the upper reinforcing member and the lower reinforcing member. The lower side reinforcing member has a space between the vehicle side surface side end and the vehicle side surface that is smaller than the space between the vehicle side surface side end of the upper reinforcing member and the vehicle side surface, and the lower side reinforcing member. Since the end of the side of the compartment side of the member protrudes toward the side of the compartment side rather than the end of the side of the upper reinforcing member, the load is input from a higher position on the side of the vehicle. Even if it exists, an upper side reinforcement member does not rotate independently of a lower side reinforcement member centering on a center side edge part. Therefore, both the reinforcing members can share the input load, and the input load can be effectively dispersed.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a vehicle side surface reinforcing structure according to an embodiment of the present invention will be described with reference to the drawings.
[0011]
FIG. 1 is a perspective view of an essential part of a vehicle 1 provided with the vehicle side surface reinforcing structure. The vehicle 1 has a passenger compartment R. The passenger compartment R is a space for passengers to get in, and the left and right sides in the vehicle width direction are surrounded by a driver side door panel 2a and a passenger side door panel 2b as vehicle body panels.
[0012]
A driver's seat 3 and a passenger seat 4 are provided in the passenger compartment R. The vehicle side surface reinforcing structure is provided inside the driver's seat 3 and the passenger seat 4, and is the same structure except that it is symmetrical with respect to a vertical plane that passes through the center of the vehicle 1 and extends forward and backward. Hereinafter, only the driver's seat side will be described.
[0013]
FIG. 2 is a view showing the internal structure of the driver's seat 3 having the vehicle side surface reinforcing structure. The driver's seat 3 is generally composed of a headrest 5 that supports the head of the occupant (driver), a seat back 6 that supports the upper body of the occupant's back and waist, and a seat cushion 7 for the occupant to sit on.
[0014]
A seat back frame 8 as a structure of the seat back 6 is provided inside the seat back 6. The seat back frame 8 is a frame made of a metal such as iron or aluminum in order to ensure the strength of the seat back 6, and is substantially rectangular when viewed from the front.
[0015]
As shown in the drawing, an upper reinforcing member 9 and a lower reinforcing member 10 are fixed to the seat back frame 8. These reinforcing members 9 and 10 are for bearing and distributing the load F when the vehicle 1 receives a load input from the side by the moving vehicle 11 (see FIG. 3). 6 is provided.
[0016]
The upper reinforcing member 9 is provided so as to incline downward from the side surface side of the passenger compartment R, that is, from the driver side door panel 2a side toward the center side of the passenger compartment R, and extend along the width direction of the vehicle 1. The lower reinforcing member 10 is disposed below the upper reinforcing member 9 and extends substantially horizontally along the width direction of the vehicle 1 from the driver seat side door panel 2a side toward the center side of the passenger compartment S. Is provided.
[0017]
A center tunnel 12 as a load transmission member is formed at the center side of the passenger compartment S, and an inner side end (hereinafter referred to as an inner end) 9 a and a lower side reinforcing member 10 of the upper reinforcing member 9. A center side end portion (hereinafter referred to as an inner end portion) 10 a of the vehicle compartment faces the center tunnel 12.
[0018]
The vehicle interior side end (hereinafter referred to as the outer end) 10 b of the lower reinforcing member 10 is more than the vehicle interior side end (hereinafter referred to as the outer end) 9 b of the upper reinforcing member 9. It protrudes toward the 2a side. Thereby, the space | interval (L1 in FIG. 2) of the outer side edge part 10b of the lower side reinforcement member 10 and the driver's seat side door panel 2a is the distance between the outer side edge part 9b of the upper side reinforcement member 9 and the driver's seat side door panel 2a (FIG. 2 is smaller than L2).
[0019]
By projecting the outer end portion 10b of the lower reinforcing member 10 toward the driver seat side door panel 2a side with respect to the outer end portion 9b of the upper reinforcing member 9, the outer end portion of the lower reinforcing member 10 can be formed with a simple structure. The distance L1 between 10b and the driver's seat side door panel 2a can be made smaller than the distance L2 between the outer end 9b of the upper reinforcing member 9 and the driver's seat side door panel 2a.
[0020]
In the vicinity of the inner end portion 9a of the upper reinforcing member 9 and in the vicinity of the inner end portion 10a of the lower reinforcing member 10, both the reinforcing members 9 and 10 are connected by an inner bracket 13 as a central connecting member. Further, in the vicinity of the outer end portion 9b of the upper reinforcing member 9 and in the vicinity of the outer end portion 10b of the lower reinforcing member 10, both the reinforcing members 9, 10 are connected by an outer bracket 14 as a side-side connecting member.
[0021]
The connection between the reinforcing members 9 and 10 and the inner bracket 13 and the connection between the reinforcing members 9 and 10 and the outer bracket 14 may be, for example, by bolts or by welding. Moreover, the upper side reinforcement member 9, the lower side reinforcement member 10, the inner side bracket 13, and the outer side bracket 14 may be integrally formed.
[0022]
Next, how the load F input to the side surface of the vehicle 1 having the vehicle side surface reinforcing structure is dispersed will be described.
[0023]
FIG. 3 is a view showing a state in which the moving vehicle 11 is in contact with the side surface of the vehicle 1 (driver's seat side door 15 in this figure) and a load F is applied to the vehicle 1. When the moving vehicle 11 approaches the vehicle 1 and contacts the driver's seat side door 15 and the load F is input to the vehicle 1, the driver's seat side door 15 is deformed and approaches the driver's seat 3.
[0024]
The distance between the outer end 10b of the lower reinforcing member 10 and the driver's seat side door panel 2a is smaller than the distance between the outer end 9b of the upper reinforcing member 9 and the driver's seat side door panel 2a. Even when the load F is input to the high position 15 a, the driver's seat side door panel 2 a comes into contact with the outer end portion 10 b of the lower reinforcing member 10 before the outer end portion 9 b of the upper reinforcing member 9.
[0025]
Thereafter, when the moving vehicle 11 further approaches the vehicle 1, the deformation of the driver seat side door 15 proceeds, and the driver seat side door panel 2 a comes into contact with the outer end portion 9 b of the upper reinforcing member 9. When the driver's seat side door panel 2a comes into contact, a rotational force in the right direction in FIG. 3 is applied to the upper reinforcing member 9 around the inner end 9a.
[0026]
However, the lower reinforcing member 10 has its outer end 10b in contact with the driver's seat side door panel 2a before the outer end 9b of the upper reinforcing member 9, and its inner end 10a also in contact with the center tunnel 12. Thus, the vehicle is sandwiched between the driver's seat side door panel 2a and the center tunnel 12. Further, since both the reinforcing members 9 and 10 are connected by the outer bracket 14 in the vicinity of the outer end portions 9b and 10b, even if a rotational force is applied to the upper reinforcing member 9, the driver side door panel 2a and the center tunnel 12 are connected. The upper reinforcing member 9 is prevented from rotating by the sandwiched lower reinforcing member 10.
[0027]
As a result, the upper reinforcing member 9 does not rotate and its outer end 9b abuts on the driver's seat side door panel 2a, and its inner end 9a abuts on the center tunnel 12 so that the upper reinforcing member 9 receives the load F. Will be effectively shared. The load F shared by the upper reinforcing member 9 is transmitted to the center tunnel 12 together with the load F shared by the lower reinforcing member 10, and the passenger seat is passed through the upper and lower reinforcing members on the passenger seat side (not shown). It will be effectively distributed towards the side door panel.
[0028]
In the present embodiment, both the reinforcing members 9 and 10 are connected by the inner bracket 13 in the vicinity of the inner end portion 9a of the upper reinforcing member 9 and also in the vicinity of the inner end portion 10a of the lower reinforcing member 10. The rotation of the upper reinforcing member 9 is further effectively prevented.
[0029]
Further, in the present embodiment, the case where the load F is input from the high position 15a of the driver's seat side door 15 has been described. However, the present invention is not limited to such a case, and the driver's seat side door 15 is low. Even if the load is input from the position, the present invention can obtain the same effect.
[0030]
According to the vehicle side surface reinforcing structure according to the present embodiment, the distance between the outer end portion 10b of the lower reinforcing member 10 and the driver seat side door panel 2a is such that the outer end portion 9b of the upper reinforcing member 9 and the driver seat side door panel 2a. Therefore, the outer end 9b of the upper reinforcing member 9 is operated earlier than the outer end 10b of the lower reinforcing member 10 according to the input position and input direction of the load. Even if it is a case where it contacts the seat side door panel 2a, the outer side edge part 10b of the lower side reinforcement member 10 will contact the driver's seat side door panel 2a immediately after that. Therefore, the lower reinforcing member 9 is sandwiched between the driver's seat side door panel 2a and the center tunnel 12, and the rotation of the upper reinforcing member 9 can be effectively prevented, and the input load can be reduced. 10 can be effectively shared and load can be distributed effectively.
[0031]
[Modification]
In the above embodiment, the upper reinforcing member 9 and the lower reinforcing member 10 are connected by the inner bracket 13 and the outer bracket 14 in the vicinity of the inner end portions 9a, 10a and the outer end portions 9b, 10b, respectively. As shown in FIG. 4, the inner bracket and the outer bracket may be the seat back frame 8.
[0032]
That is, the seat back frame 8 itself is used as an inner bracket and an outer bracket that connect both the reinforcing members 9 and 10, and both the reinforcing members 9 and 10 are disposed in the vicinity of the inner end portions 9a and 10a and in the vicinity of the outer end portions 9b and 10b. Attached directly to the seat back 8. Thereby, it is not necessary to separately prepare an inner bracket and an outer bracket as connecting members, which can contribute to reduction in the number of parts, manufacturing cost, and weight of the vehicle 1.
[0033]
Further, the upper reinforcing member 9, the lower reinforcing member 10, and the seat back frame 8 may be integrally formed. Thereby, the number of parts can be further reduced.
[0034]
【The invention's effect】
As described above, according to the invention according to the claims of the present application, both the reinforcing members are provided on the side-side connecting members in the vicinity of the side surface side end portion and the vicinity of the center side end portion of the upper side reinforcing member and the lower side reinforcing member. and the central-side connecting member are connected by the distance between the cabin side surface side end of the cabin side surface of the lower reinforcing member, than the distance between the cabin side surface side end of the cabin side of the upper reinforcing member Since the compartment side surface end of the lower reinforcing member is smaller and protrudes toward the vehicle compartment side than the vehicle compartment side end of the upper reinforcing member, it is from a position with a high side surface relative to the vehicle. Even when a load is input, the upper reinforcing member does not rotate independently of the lower reinforcing member around the center end. Therefore, both the reinforcing members can share the input load, and the input load can be effectively dispersed.
[Brief description of the drawings]
FIG. 1 is a perspective view of an essential part of a vehicle provided with a vehicle side surface reinforcing structure according to an embodiment of the present invention.
FIG. 2 is a diagram showing an internal structure of a driver's seat provided with a vehicle side surface reinforcing structure according to an embodiment of the present invention.
FIG. 3 is a diagram showing a state in which an input load is applied to the vehicle when the moving vehicle contacts the side surface of the vehicle including the vehicle side surface reinforcing structure according to the embodiment of the present invention.
FIG. 4 is a view showing an internal structure of a driver's seat having a vehicle side surface reinforcing structure according to a modified example of the present invention.
FIGS. 5A and 5B are diagrams for explaining a conventional vehicle side surface reinforcing structure, in which FIG. 5A shows an internal structure of a driver's seat of a vehicle provided with the vehicle side surface reinforcing structure, and FIG. A state in which the moving vehicle is in contact with the side surface and an input load is applied to the vehicle is shown.
[Explanation of symbols]
R: Vehicle compartment 1: Vehicle 2a: Driver side door panel (body panel)
2b: Passenger side door panel (body panel)
3: Driver's seat 4: Passenger's seat 6: Seat back 8: Seat back frame 9: Upper reinforcing members 9a, 10a: Inner end (end of vehicle interior side)
9b, 10b: Outer end (side end of vehicle compartment side)
10: Lower reinforcement member 12: Center tunnel (load transmission member)
13: Inner bracket (central connecting member)
14: Outer bracket (side connection member)
15: Driver side door (side)

Claims

An upper reinforcing member extending along a width direction of the vehicle so as to incline downward from a side surface of the vehicle compartment toward a central side of the vehicle compartment on a seat back of the vehicle seat; and below the upper reinforcing member And a lower reinforcing member extending substantially horizontally along the width direction of the vehicle from the vehicle side surface side to the vehicle center side.
An interval between the compartment side surface end of the lower reinforcing member and the vehicle compartment side is smaller than an interval between the vehicle compartment side end of the upper reinforcement member and the vehicle compartment side, and The vehicle interior side end of the lower reinforcement member protrudes toward the vehicle compartment side rather than the vehicle interior side end of the upper reinforcement member,
The two reinforcing members are connected by a side-side connecting member and a center-side connecting member, respectively, in the vicinity of the side surface side end portion of the both reinforcing members and in the vicinity of the center side end portion of the vehicle compartment
The side reinforcing structure for a vehicle according to claim 1, wherein end portions of the two reinforcing members on the center side of the vehicle compartment are opposed to load transmission members provided on the central side of the vehicle compartment.

The vehicle side surface reinforcing structure according to claim 1 , wherein the side surface side connecting member is a seat back frame.