JP2011157007A

JP2011157007A - Upper body structure of vehicle

Info

Publication number: JP2011157007A
Application number: JP2010021393A
Authority: JP
Inventors: Yukio Nakamura; 幸雄中村; Shigeyuki Mori; 茂之森; Satoru Hashimoto; 悟橋本
Original assignee: Mazda Motor Corp
Current assignee: Mazda Motor Corp
Priority date: 2010-02-02
Filing date: 2010-02-02
Publication date: 2011-08-18

Abstract

<P>PROBLEM TO BE SOLVED: To effectively enhance the support rigidity of a seat for an occupant while reducing the cost of a vehicle body by effectively reducing the weight thereof. <P>SOLUTION: In this upper body structure of a vehicle, at least a driver's seat 3 and a front passenger's seat 4 are arranged above a floor panel 2 forming the bottom surface of a cabin in parallel in the vehicle width direction. The front passenger's seat 4 includes a seat frame member 24 fixed to the floor panel 2 and a seat body part formed of a seat back 19 supported on the seat frame member 24 and the like. The seat frame member 24 is connected to a vehicle body member which constitutes the inner walls 6a, 6b of the cabin. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、車室の底面を形成するフロアパネルの上方に少なくとも運転席シートと助手席シートとが車幅方向に並設された車両の上部車体構造に関するものである。 The present invention relates to an upper body structure of a vehicle in which at least a driver's seat and a passenger's seat are juxtaposed in the vehicle width direction above a floor panel that forms the bottom surface of a passenger compartment.

従来、下記特許文献１に示されるように、フロアパネル上に運転席および助手席が設置された所謂ツーシータタイプのスポーツカーにおいて、ダッシュパネルの凹部内にエンジン等からなる駆動装置を配設し、該駆動装置の側方のダッシュパネルの前方にバッテリを配設し、バッテリ前端位置を駆動装置よりも前方に位置させることで、駆動装置とバッテリとの両者を後方に配置し、これによりヨー慣性モーメントの低減を図って、操縦安定性および車両の運動性能の向上を図り、しかも衝突荷重をバッテリで受け止めて、衝突時に駆動装置の後退量を減少させて、安全性を向上させることが行われている。 Conventionally, as shown in Patent Document 1 below, in a so-called two-seater type sports car in which a driver seat and a passenger seat are installed on a floor panel, a driving device including an engine or the like is disposed in a recess of the dash panel. The battery is disposed in front of the dash panel on the side of the drive device, and the front end position of the battery is positioned in front of the drive device, so that both the drive device and the battery are disposed rearward, thereby It is intended to improve safety by reducing the moment of inertia to improve steering stability and vehicle motion performance, and to catch the collision load with a battery and reduce the amount of retraction of the drive unit at the time of collision. It has been broken.

また、下記特許文献２に示されるように、所謂オープンカーにおいて、その転倒時に乗員の頭部を保護するロールバーやサイドパネルからの入力荷重を、該ロールバー、クロスバーおよびサイドパネル間で有効に分散させることを目的として、上記ロールバー、クロスバーおよびサイドパネルを強固に結合してロールバー構造の耐力を向上させることができる車両のロールバー構造が提供されている。 Further, as shown in Patent Document 2 below, in a so-called open car, an input load from a roll bar and a side panel that protects the head of an occupant when the vehicle falls is effective between the roll bar, the cross bar, and the side panel. In order to disperse the roll bar, there is provided a roll bar structure for a vehicle capable of improving the yield strength of the roll bar structure by firmly bonding the roll bar, the cross bar and the side panel.

特開２００５−２８９１１号公報JP 2005-28911 A 特開２００６−２１６０７号公報JP 2006-21607 A

上記ツーシータタイプのスポーツカー等においては、車体を軽量化してその走行性を向上させることが特に望まれるとともに、フロアパネル上に設置された乗員用シートの支持剛性を効果的に向上させることが重要な課題である。上記特許文献１に開示された車両では、車両用補機の設置スペースや物品等の収納スペースを確保するために様々な工夫が凝らされているが、車体を軽量化しつつ、乗員用シートの支持剛性を効果的に向上させる点については特に考慮されていなかった。 In the above-mentioned two-seater type sports car, etc., it is particularly desired to reduce the weight of the vehicle body to improve its running performance, and to effectively improve the support rigidity of the passenger seat installed on the floor panel. This is an important issue. In the vehicle disclosed in Patent Document 1 above, various devices have been devised in order to secure a space for installing auxiliary equipment for vehicles and a storage space for articles, etc., while supporting the passenger seat while reducing the weight of the vehicle body. No particular consideration was given to the point of effectively improving the rigidity.

また、上記特許文献２に開示されたロールバー構造によれば、車両の横転時に上記ロールバーが受ける荷重や、車両の側突時に上記サイドパネルが受ける荷重を適正に分散させて支持することかできる。しかし、特許文献２に開示された車両においても、車体を軽量化しつつ、乗員用シートの支持剛性を効果的に確保し、車両の走行時に乗員用シートに着座した乗員を安定して保持できようにする点について特に考慮されていなかった。 In addition, according to the roll bar structure disclosed in Patent Document 2, the load received by the roll bar when the vehicle rolls over and the load received by the side panel during a side collision of the vehicle are appropriately distributed and supported. it can. However, even in the vehicle disclosed in Patent Document 2, it is possible to effectively secure the support rigidity of the occupant seat while reducing the weight of the vehicle body, and stably hold the occupant seated on the occupant seat when the vehicle is traveling. There was no particular consideration for the points to be made.

本発明は、上記の問題点に鑑みてなされたものであり、車体を効果的に軽量化してコストダウンを図りつつ、乗員用シートの支持剛性を効果的に向上させることができる車両の上部車体構造を提供することを目的としている。 The present invention has been made in view of the above-described problems, and can effectively improve the support rigidity of an occupant seat while reducing the cost by effectively reducing the weight of the vehicle body. Its purpose is to provide a structure.

請求項１に係る発明は、車室の底面を形成するフロアパネルの上方に少なくとも運転席シートと助手席シートとが車幅方向に並設された車両の上部車体構造であって、助手席シートが、上記フロアパネルに固定されるシートフレーム部材と、該シートフレーム部材に支持されたシート本体部とを具備し、車室の内壁を構成する車体部材に上記シートフレーム部材が連結されたものである。 The invention according to claim 1 is an upper body structure of a vehicle in which at least a driver's seat and a passenger's seat are juxtaposed in a vehicle width direction above a floor panel that forms a bottom surface of a passenger compartment. Comprises a seat frame member fixed to the floor panel, and a seat main body supported by the seat frame member, and the seat frame member is connected to a vehicle body member constituting the inner wall of the passenger compartment. is there.

請求項２に係る発明は、上記請求項１に記載の車両の上部車体構造において、上記助手席シートの側方に配設された車室の側壁パネルからなる車体部材に上記シートフレーム部材が連結されたものである。 According to a second aspect of the present invention, in the upper body structure of the vehicle according to the first aspect, the seat frame member is connected to a vehicle body member comprising a side wall panel of a passenger compartment disposed on the side of the passenger seat. It has been done.

請求項３に係る発明は、上記請求項１または２に記載の車両の上部車体構造において、上記助手席シートの上方に配設された車幅方向に延びるリヤヘッダからなる車体部材に上記シートフレーム部材が連結されたものである。 According to a third aspect of the present invention, in the upper body structure of the vehicle according to the first or second aspect, the seat frame member may be a vehicle body member including a rear header disposed in the vehicle width direction and disposed above the passenger seat. Are concatenated.

請求項４に係る発明は、上記請求項１〜３の何れか１項に記載の車両の上部車体構造において、上記助手席シートには、該助手席シートに着座した乗員を保護するロールバー部材が上方に延びるように設置され、該ロールバー部材が上記シートフレーム部材に連結されたものである。 According to a fourth aspect of the present invention, in the upper body structure of the vehicle according to any one of the first to third aspects, a roll bar member that protects an occupant seated on the front passenger seat on the front passenger seat. Is installed to extend upward, and the roll bar member is connected to the seat frame member.

請求項５に係る発明は、上記請求項１〜４の何れか１項に記載の車両の上部車体構造において、上記ロールバー部材とシートフレーム部材とが一体的に形成され、該シートフレーム部材を介して該ロールバー部材が上記車体部材に連結されたものである。 According to a fifth aspect of the present invention, in the upper body structure of the vehicle according to any one of the first to fourth aspects, the roll bar member and the seat frame member are integrally formed, and the seat frame member is The roll bar member is connected to the vehicle body member.

請求項６に係る発明は、上記請求項４または５に記載の車両の上部車体構造において、上記ロールバー部材が、助手席シートの上方から運転席シートの上方に向けて車幅方向に延びるように設置されることにより、該運転席シートに着座した乗員が保護されるように構成されたものである。 The invention according to claim 6 is the vehicle upper body structure according to claim 4 or 5, wherein the roll bar member extends in the vehicle width direction from above the passenger seat to above the driver seat. By being installed, the occupant seated on the driver seat is protected.

請求項７に係る発明は、上記請求項１〜６の何れか１項に記載の車両の上部車体構造において、上記車両が、車室上方にルーフ部材が開閉可能に設けられたオープンカーであることを特徴とするものである。 The invention according to claim 7 is the vehicle upper body structure according to any one of claims 1 to 6, wherein the vehicle is an open car provided with a roof member that can be opened and closed above the passenger compartment. It is characterized by this.

請求項１に係る発明では、上記助手席シートのシート本体部に作用した荷重を、シートフレーム部材から車室の内壁に伝達して支持することができるため、車体重量を顕著に増大させることなく、車両の走行時上記助手席シートに着座した乗員の着座姿勢を安定して保持できるとともに、車両の衝突時等に該乗員の安全性を効果的に確保できる等の利点がある。 In the invention according to claim 1, since the load acting on the seat body of the passenger seat can be transmitted and supported from the seat frame member to the inner wall of the passenger compartment, the weight of the vehicle body is not significantly increased. In addition, there are advantages such as being able to stably hold the sitting posture of the occupant seated on the passenger seat when the vehicle is traveling, and effectively ensuring the safety of the occupant when the vehicle collides.

請求項２に係る発明では、助手席シートの側方に配設された車室の側壁パネルからなる車体部材に上記シートフレーム部材を連結したため、該シートフレーム部材を、車体の補強材として効果的に利用することができ、車体重量を増大させることなく、その剛性を充分に確保できるという利点がある。 In the invention according to claim 2, since the seat frame member is connected to the vehicle body member formed of the side wall panel of the passenger compartment disposed on the side of the passenger seat, the seat frame member is effectively used as a vehicle body reinforcing material. There is an advantage that the rigidity can be sufficiently secured without increasing the weight of the vehicle body.

請求項３に係る発明では、上記助手席シートの上方に配設された車幅方向に延びるリヤヘッダからなる車体部材に上記シートフレーム部材を連結したため、上記シートバックの側方にシートフレーム部材を連結するためのサイドパネル等が存在しない場合においても、上記助手席シートの支持剛性を効果的に向上させることができる。 In the invention according to claim 3, since the seat frame member is connected to the vehicle body member including the rear header arranged in the vehicle width direction and disposed above the passenger seat, the seat frame member is connected to the side of the seat back. Even when a side panel or the like is not present, the support rigidity of the passenger seat can be effectively improved.

請求項４に係る発明では、上記助手席シートに、該助手席シートに着座した乗員を保護するロールバー部材を上方に延びるように設置し、該ロールバー部材を上記シートフレーム部材に連結したため、該シートフレーム部材を上記ロールバー部材の支持部材として利用することにより、該ロールバー部材を簡単かつ適正に設置して、車両の横転時等に助手席シートに着座した乗員を効果的に保護できるという利点がある。 In the invention according to claim 4, since the roll bar member that protects the passenger seated on the passenger seat is installed on the passenger seat so as to extend upward, the roll bar member is connected to the seat frame member. By using the seat frame member as a support member for the roll bar member, the roll bar member can be easily and properly installed to effectively protect an occupant seated on the passenger seat when the vehicle rolls over. There is an advantage.

請求項５に係る発明では、上記ロールバー部材とシートフレーム部材とを一体的に形成し、該シートフレーム部材を介して該ロールバー部材を上記車体部材に連結するように構成したため、上記シートフレーム部材およびロールバー部材からなる構造体を容易に形成できるとともに、その強度を効果的に向上できる等の利点がある。 In the invention according to claim 5, the roll bar member and the seat frame member are integrally formed, and the roll bar member is connected to the vehicle body member via the seat frame member. There are advantages that a structure composed of a member and a roll bar member can be easily formed, and the strength can be effectively improved.

請求項６に係る発明では、上記ロールバー部材を、助手席シートの上方から運転席シートの上方に向けて車幅方向に延ばすように設置することにより該運転席シートに着座した乗員を保護するように構成したため、助手席シートに着座した乗員を保護するために設置された上記ロールバー部材に、運転席シートに着座した運転者を保護する機能を兼ね備えさせることができるため、簡単な構成で運転席シートおよび助手席シートに着座した両方の乗員を効果的に保護できるという利点がある。 In the invention according to claim 6, the roll bar member is installed so as to extend in the vehicle width direction from the upper side of the passenger seat to the upper side of the driver seat, thereby protecting the passenger seated on the driver seat. Since the roll bar member installed to protect the occupant seated on the passenger seat can be combined with the function of protecting the driver seated on the driver seat, the configuration is simple. There is an advantage that both passengers seated in the driver seat and the passenger seat can be effectively protected.

請求項７に係る発明では、車室の上方にルーフ部材が開閉可能に設けられたオープンカーからなる車両、つまりその走行性が重視されるスポーツカーに上記構成を採用したため、車体重量を軽量して走行性を効果的に向上させることができるとともに、上記シートフレーム部材により車体を効果的に補強することができ、車両の側突時等に入力された衝撃荷重が車室内に及ぶのを防止して安全性を充分に確保できるという利点がある。 In the invention according to claim 7, since the above configuration is adopted for a vehicle composed of an open car having a roof member that can be opened and closed above the passenger compartment, that is, a sports car that places importance on its traveling performance, the weight of the vehicle body is reduced. As a result, the vehicle body can be effectively reinforced by the seat frame member, and the impact load input during a side collision of the vehicle can be prevented from reaching the vehicle interior. Thus, there is an advantage that sufficient safety can be secured.

本発明に係る車両の上部車体構造を備えた車両の概略構成を示す平面図である。1 is a plan view showing a schematic configuration of a vehicle including an upper vehicle body structure of a vehicle according to the present invention. 運転席シートおよび助手席シートの設置状態を示す正面断面図である。It is front sectional drawing which shows the installation state of a driver seat and a passenger seat. 運転席シートの設置状態を示す側面断面図である。It is side surface sectional drawing which shows the installation state of a driver's seat. 助手席シートの設置状態を示す側面断面図である。It is side surface sectional drawing which shows the installation state of a passenger seat. 運転席シートを前方に移動させた状態を示す平面図である。It is a top view which shows the state which moved the driver's seat sheet ahead. シートフレーム部材の具体的構成を示す斜視図である。It is a perspective view which shows the specific structure of a seat frame member. 本発明に係る車両の上部車体構造の別の実施形態を示す図２相当図である。FIG. 3 is a view corresponding to FIG. 2 showing another embodiment of the upper body structure of the vehicle according to the present invention. 上記実施形態におけるロールバー部材の具体的構成を示す斜視図である。It is a perspective view which shows the specific structure of the roll bar member in the said embodiment. 本発明に係る車両の上部車体構造のさらに別の実施形態を示す側面図である。It is a side view which shows another embodiment of the upper vehicle body structure of the vehicle which concerns on this invention. 上記実施形態における運転席シートおよび助手席シートの設置状態を示す正を示す正面断面図である。It is front sectional drawing which shows positive which shows the installation state of the driver seat and passenger seat in the said embodiment. シートフレーム部材をリヤヘッダに連結した状態を示す側面断面図である。It is side surface sectional drawing which shows the state which connected the seat frame member to the rear header.

図１〜図６は、本発明に係る車両の上部車体構造の実施形態を示している。本実施形態に係る車両は、その車室１内のフロアパネル２上に運転席シート３および助手席シート４が左右に並設されるとともに、車室上方にルーフ部材（図示せず）が開閉可能に設置された所謂ツーシータタイプのオープンカーである。上記フロアパネル２の左右両側方部には、車両の前後方向に延びる左右一対のサイドシル５が設置されるとともに、上記フロアパネル２の車幅方向中央部には、車室内側（上方）に向けて突出するトンネル部７が車両の前後方向に延びるように設置されている。また、上記車室１の側面部には、乗降用の開口部が開閉するサイドドア（図示せず）が設けられるとともに、その後方に車室１の内壁を構成するサイドパネル６ａ，６ｂからなる車体部材が配設されている。 1 to 6 show an embodiment of a vehicle upper body structure according to the present invention. In the vehicle according to the present embodiment, a driver seat 3 and a passenger seat 4 are arranged side by side on a floor panel 2 in the passenger compartment 1 and a roof member (not shown) is opened and closed above the passenger compartment. It is a so-called two-seater type open car that can be installed. A pair of left and right side sills 5 extending in the front-rear direction of the vehicle are installed on both left and right sides of the floor panel 2, and at the center in the vehicle width direction of the floor panel 2 toward the vehicle interior side (upward). The protruding tunnel portion 7 is installed so as to extend in the front-rear direction of the vehicle. A side door (not shown) that opens and closes an opening for getting on and off is provided on the side surface of the vehicle compartment 1, and side panels 6a and 6b that constitute the inner wall of the vehicle compartment 1 are provided behind the side door. A vehicle body member is disposed.

上記車室１内の左側部位（図２で示す正面視では右側部位）には、運転席シート３を移動可能に支持する左右一対のシートレール８が車両の前後方向に延びるように設置されている。また、車室１内の右側部位（図２で示す正面視では左側部位）には、フロアパネル２を上方に膨出させたフロア膨出部９が形成され、その上に助手席シート４が取り付けられている。上記運転席シート３および助手席シート４の設置部の後方側には、斜め上方に向けてキックアップしたキックアップ部１０と、その上端部から車両の後方側に延びるリヤフロアパネル１１とが連設されている。また、上記リヤフロアパネル１１の前部下面には、車幅方向に延びる閉断面を形成するリヤクロスメンバ１２が配設されている。 A pair of left and right seat rails 8 that movably support the driver's seat 3 is installed in the left side portion (in the front view shown in FIG. 2) in the passenger compartment 1 so as to extend in the front-rear direction of the vehicle. Yes. Further, a floor bulging portion 9 bulging the floor panel 2 upward is formed on the right side portion in the passenger compartment 1 (the left side portion in the front view shown in FIG. 2), and the passenger seat 4 is formed thereon. It is attached. A kick-up portion 10 kicked up obliquely upward and a rear floor panel 11 extending from the upper end portion to the rear side of the vehicle are connected to the rear side of the installation portion of the driver seat 3 and the passenger seat 4. Has been. A rear cross member 12 that forms a closed cross section extending in the vehicle width direction is disposed on the lower surface of the front portion of the rear floor panel 11.

上記運転席シート３は、図３に示すように、車室１内のフロアパネル２上に設置された上記シートレール８に沿って車両の前後方向にスライド可能に支持されたシートクッション１３と、その後端部に立設されたシートバック１４と、上記シートクッション１３の後端部側面に取り付けられてシートバック１４を傾動可能に支持するリクライニング機構１５とを備えている。そして、上記シートレール８に沿って運転席シート３のシートクッション１３をスライド変位させることにより、図５に示すように、運転席シート３を、ステアリングホイール１６およびインストルメントパネル１７に近接させた最前方位置から、図１および図３に示すように、上記フロアパネル２のキックアップ部１０に近接させた最後方位置まで前後移動させることにより、運転席シート３に着座した運転者の着座位置を、その体格等に応じて調整できるように構成されている。 As shown in FIG. 3, the driver seat 3 includes a seat cushion 13 slidably supported in the front-rear direction of the vehicle along the seat rail 8 installed on the floor panel 2 in the passenger compartment 1; A seat back 14 erected at the rear end portion and a reclining mechanism 15 attached to the side surface of the rear end portion of the seat cushion 13 so as to tiltably support the seat back 14 are provided. Then, the seat cushion 13 of the driver's seat 3 is slid along the seat rail 8 so that the driver's seat 3 is brought close to the steering wheel 16 and the instrument panel 17 as shown in FIG. As shown in FIGS. 1 and 3, the seating position of the driver seated on the driver's seat 3 is moved back and forth from the front position to the rearmost position close to the kick-up portion 10 of the floor panel 2. It is configured so that it can be adjusted according to its physique and the like.

一方、助手席シート４は、図４に示すように、上記フロア膨出部９上に載置されたシートクッション１８と、該シートクッション１８の後方部から上方に立設されたシートバック１９と有している。そして、上記助手席シート４の設置位置は、上記運転席シート３の最前方位置よりも後方側、具体的には、上記シートレール８により前後移動可能に支持された運転席シート３の最後方位置に対応した車室１の後方部位に設定されている。このように助手席シート４のシートクッション１８およびシートバック１９が、上記フロアパネル２の後端部に設けられたキックアップ部１０に近接した位置に支持されることにより、上記シートクッション１８の前後移動が規制されるとともに、上記シートバック１９の傾動変位が規制された状態で、上記シートレール８により前後移動可能に支持された運転席シート３の最前方位置よりも後方側において、上記助手席シート４がフロアパネル２に固定されている。 On the other hand, as shown in FIG. 4, the passenger seat 4 includes a seat cushion 18 placed on the floor bulging portion 9, and a seat back 19 erected upward from the rear portion of the seat cushion 18. Have. The installation position of the passenger seat 4 is rearward of the frontmost position of the driver seat 3, specifically, the rearmost position of the driver seat 3 supported by the seat rail 8 so as to be movable back and forth. It is set in the rear part of the vehicle compartment 1 corresponding to the position. As described above, the seat cushion 18 and the seat back 19 of the passenger seat 4 are supported at positions close to the kick-up portion 10 provided at the rear end portion of the floor panel 2, thereby In the state where the movement is restricted and the tilt displacement of the seat back 19 is restricted, the passenger seat is located behind the frontmost position of the driver seat 3 supported by the seat rail 8 so as to be movable back and forth. A seat 4 is fixed to the floor panel 2.

また、上記助手席シート４は、そのシートバック１９を支持する丸パイプ材等からなるシートフレーム部材２４を具備している。該シートフレーム部材２４は、シートバック１９の上辺部に沿って車幅方向に延びる横部材２５と、その車幅方向の外側端部から下方に延びる側方部材２６と、上記横部材２５の車幅方向の内側端部を支持する縦部材２７とを有している。上記側方部材２６は、その下端部に設けられた取付ブラケット２８を介してフロア膨出部９の後部上面にボルト止めされる等の手段で固定されている。 The passenger seat 4 includes a seat frame member 24 made of a round pipe material or the like that supports the seat back 19. The seat frame member 24 includes a lateral member 25 extending in the vehicle width direction along the upper side portion of the seat back 19, a side member 26 extending downward from an outer end portion in the vehicle width direction, and the vehicle of the lateral member 25. And a vertical member 27 that supports the inner end in the width direction. The side member 26 is fixed by means such as bolted to the upper surface of the rear portion of the floor bulging portion 9 via a mounting bracket 28 provided at the lower end thereof.

上記シートフレーム部材２４の縦部材２７は、図２および図６に示すように、正面視で運転席シート３と助手席シート４との間において上下方向に延びるように設置され、上記縦部材２７の下端部には、上記リヤクロスメンバ１２により補強されたリヤフロアパネル１１の前端部上面にボルト止めされる等の手段で固定される取付ブラケット２９が設けられている。 As shown in FIGS. 2 and 6, the vertical member 27 of the seat frame member 24 is installed so as to extend in the vertical direction between the driver seat 3 and the passenger seat 4 in a front view. A mounting bracket 29 is provided at the lower end portion of the front end portion of the rear floor panel 11, which is reinforced by the rear cross member 12.

上記縦部材２７の上部には助手席シート４に着座した乗員を保護するロールバー部材３０が一体的に形成されている。このロールバー部材３０は、上記縦部材２７に上端部に連設されて助手席シート４の上方に延びる上部部材３１と、その上端部からシートバック１９の中央部に向けて斜め下方に延びる斜め部材３２とを有している。上記斜め部材３２の下部は、助手席シート４のシートバック１９内に導入され、シートフレーム部材２４の横部材２５に溶接される等の手段で固定されている。 A roll bar member 30 is integrally formed on the upper portion of the vertical member 27 to protect an occupant seated on the passenger seat 4. The roll bar member 30 includes an upper member 31 which is connected to the upper end portion of the vertical member 27 and extends above the front passenger seat 4, and an obliquely extending downward from the upper end portion toward the center portion of the seat back 19. Member 32. The lower portion of the oblique member 32 is introduced into the seat back 19 of the passenger seat 4 and fixed by means such as welding to the transverse member 25 of the seat frame member 24.

また、上記シートフレーム部材２４は、側方部材２６から、助手席シート４の側方に位置するサイドパネル６ａ側（正面視で左側）に向けて突設された角パイプ材等からなる第１連結部材３４と、上記縦部材２７から、運転席シート３の後方側を通って該運転席シート３の側方に位置するサイドパネル６ｂ側（正面視で右側）に突設された角パイプ材等からなる第２連結部材３５とを具備している。 The seat frame member 24 is a first member made of a square pipe member or the like that protrudes from the side member 26 toward the side panel 6a side (left side in a front view) located on the side of the passenger seat 4. A square pipe member projecting from the connecting member 34 and the vertical member 27 to the side panel 6b side (right side in a front view) located on the side of the driver seat 3 through the rear side of the driver seat 3. And a second connecting member 35 made of the like.

そして、上記第１連結部材３４の先端部に設けられた取付フランジ部３６が、助手席シート４の側方に位置するサイドパネル６ａにボルト止めされるとともに、上記第２連結部材３５の先端部に設けられた取付フランジ部３７が、運転席シート４の側方に位置するサイドパネル６ｂにボルト止めされる等により、上記サイドパネル６ａ，６ｂからなる車体部材（車室１の内壁）にシートフレーム部材２４が連結されるように構成されている。 And the attachment flange part 36 provided in the front-end | tip part of the said 1st connection member 34 is bolted to the side panel 6a located in the side of the front passenger seat 4, and the front-end | tip part of the said 2nd connection member 35 A mounting flange portion 37 provided on the side of the driver's seat 4 is bolted to the side panel 6b positioned on the side of the driver's seat 4 and the like, so that the vehicle body member (inner wall of the passenger compartment 1) comprising the side panels 6a and 6b is seated. The frame member 24 is configured to be coupled.

また、図４に示すように、上記助手席シート４の設置部に位置するフロア膨出部９の下方には、取付具３８を介して車載バッテリ３９等からなる車両用補機が設置されている。なお、上記フロア膨出部９の下方に配設される車両用補機としては、上記車載バッテリ３９以外にも、電気自動車等において使用される電力貯蔵用キャパシタ、またはハイブリッド車両においてその動力源用主電池の高電圧を低電圧に変換して補機電池を充電するＤＣ−ＤＣコンバータからなるハイブリッド車両用コンバータ等が考えられる。 Further, as shown in FIG. 4, a vehicular auxiliary machine including an in-vehicle battery 39 and the like is installed via a fixture 38 below the floor bulging portion 9 located at the installation portion of the passenger seat 4. Yes. In addition to the in-vehicle battery 39, the auxiliary equipment for the vehicle disposed below the floor bulging portion 9 may be a power storage capacitor used in an electric vehicle or the like, or a power source in a hybrid vehicle. A hybrid vehicle converter including a DC-DC converter that charges the auxiliary battery by converting the high voltage of the main battery to a low voltage is conceivable.

上記のように車室の底面を形成するフロアパネル２の上方に運転席シート３と助手席シート４とが車幅方向に並設された車両の上部車体構造において、助手席シート４が、上記フロアパネル２に固定されるシートフレーム部材２４と、該シートフレーム部材２４に支持されたシートバック１９からなるシート本体部とを具備し、車室１の内壁を構成する車体部材に上記シートフレーム部材２４を連結したため、車体を効果的に軽量化してコストダウンを図りつつ、助手席シート４の支持剛性を効果的に向上させることができるという利点がある。 In the upper body structure of the vehicle in which the driver's seat 3 and the passenger seat 4 are juxtaposed in the vehicle width direction above the floor panel 2 that forms the bottom of the passenger compartment as described above, the passenger seat 4 is A seat frame member 24 fixed to the floor panel 2 and a seat main body portion including a seat back 19 supported by the seat frame member 24, and the seat frame member as a vehicle body member constituting the inner wall of the passenger compartment 1. Since 24 is connected, there is an advantage that the support rigidity of the passenger seat 4 can be effectively improved while reducing the cost by effectively reducing the weight of the vehicle body.

すなわち、上記実施形態では、シートフレーム部材２４を構成する側方部材２６に、正面視で左側へ突出する第１連結部材３４を設けるとともに、上記シートフレーム部材２４を構成する縦部材２７に、正面視で右側へ突出する第２連結部材３５を設け、上記第１，第２連結部材３４，３５の先端部をそれぞれ助手席シート４の側方に位置するサイドパネル６ａおよび運転席シート４の側方に位置するサイドパネル６ｂに連結するように構成したため、上記助手席シート４のシートバック１９に作用した荷重を、シートフレーム部材２４から上記サイドパネル６ａ，６ｂ（車室１の内壁）に伝達して支持することができる。したがって、車体重量を顕著に増大させることなく、車両の走行時に上記助手席シート４に着座した乗員の着座姿勢を安定して保持できるとともに、車両の衝突時等に該乗員の安全性を効果的に確保できるという利点がある。 That is, in the above embodiment, the first connecting member 34 protruding leftward in front view is provided on the side member 26 that constitutes the seat frame member 24, and the front member is provided on the longitudinal member 27 that constitutes the seat frame member 24. A second connecting member 35 that protrudes to the right side when viewed is provided, and the front end portions of the first and second connecting members 34 and 35 are respectively located on the sides of the passenger seat 4 and the side of the driver seat 4 Since it is configured to be connected to the side panel 6b located on the side, the load acting on the seat back 19 of the passenger seat 4 is transmitted from the seat frame member 24 to the side panels 6a and 6b (inner walls of the passenger compartment 1). Can be supported. Therefore, it is possible to stably maintain the seating posture of the occupant seated on the passenger seat 4 when the vehicle is traveling without significantly increasing the vehicle body weight, and to effectively improve the safety of the occupant during a vehicle collision or the like. There is an advantage that can be secured.

そして、上記のように運転席シート３の下方には、該運転席シート３を車両の前後方向に移動可能に支持するシートレール８をフロアパネル２上に設置し、かつ助手席シート４の下方に、フロアパネル２を上方に膨出させたフロア膨出部９を形成し、このフロア膨出部９に上記助手席シート４を固定したため、車体を効果的にコンパクト化してコストダウンを図りつつ、上記フロア膨出部９の下方スペースを有効に利用して車両用補機等を効率よく設置することができる。 As described above, a seat rail 8 that supports the driver seat 3 so as to be movable in the front-rear direction of the vehicle is installed on the floor panel 2 below the driver seat 3 and below the passenger seat 4. Further, since the floor bulging portion 9 is formed by bulging the floor panel 2 upward, and the passenger seat 4 is fixed to the floor bulging portion 9, the vehicle body is effectively made compact and the cost is reduced. Further, it is possible to efficiently install a vehicular auxiliary machine or the like by effectively using the space below the floor bulging portion 9.

すなわち、上記実施形態では、助手席シート４を車室１の後方部において固定したため、この助手席シート４用のシートレールを省略してその分だけ車体を軽量化することができるとともに、材料費を節約して製造コストを安価に抑制することができる。また、上記助手席シート４をシートレールにより前後移動可能に支持した場合のように、助手席シート４を前後移動させる際に車体との干渉を回避するために助手席シート４のレイアウトを工夫する必要がないという利点がある。しかも、上記フロア膨出部９の下方部を有効に活用することにより、車体をコンパクト化したツーシータタイプのスポーツカー等においても、上記車載バッテリ３９等からなる車両用補機の収納スペースを充分に確保することができる。 That is, in the above embodiment, since the passenger seat 4 is fixed at the rear portion of the passenger compartment 1, the seat rail for the passenger seat 4 can be omitted, and the vehicle body can be reduced in weight, and the material cost can be reduced. The manufacturing cost can be reduced at a low cost. Further, the layout of the passenger seat 4 is devised in order to avoid interference with the vehicle body when the passenger seat 4 is moved forward and backward as in the case where the passenger seat 4 is supported by the seat rail so as to be movable forward and backward. There is an advantage that it is not necessary. In addition, by effectively utilizing the lower part of the floor bulging portion 9, even in a two-seater type sports car having a compact vehicle body, a sufficient storage space for the vehicle auxiliary equipment including the in-vehicle battery 39 is sufficient. Can be secured.

しかも、上記第１，２連結部材３４，３５等を介して上記サイドパネル６ａ，６ｂからなる車体部材（車室１の内壁）に連結されたシートフレーム部材２４を、車体の補強材として利用することができるため、車体重量を増大させることなく、その剛性を充分に確保することができる。特に、車室１の上方にルーフ部材が開閉可能に設けられたオープンカーからなる車両、つまりその走行性が重視されるスポーツカーに本発明を適用した場合には、車体重量を軽量して走行性を効果的に向上させることができるとともに、車両の側突時等に入力された衝撃荷重が車室内に及ぶのを効果的に防止して安全性を充分に確保できるという利点がある。 In addition, the seat frame member 24 connected to the vehicle body member (inner wall of the vehicle compartment 1) including the side panels 6a and 6b via the first and second connection members 34 and 35 is used as a vehicle body reinforcing material. Therefore, the rigidity can be sufficiently ensured without increasing the weight of the vehicle body. In particular, when the present invention is applied to a vehicle composed of an open car having a roof member that can be opened and closed above the passenger compartment 1, that is, a sports car in which the traveling performance is important, the vehicle body is reduced in weight. As a result, it is possible to effectively improve the safety, and it is possible to effectively prevent the impact load input at the time of a side collision of the vehicle from reaching the vehicle interior and sufficiently secure safety.

また、上記実施形態に示すように、助手席シート４の上方に延びるように設置されて助手席シート４に着座した乗員を保護するロールバー部材３０と、上記助手席シート４のシートバック１９を補強するシートフレーム部材２４とを一体的に連結した構成によれば、該シートフレーム部材２４を上記ロールバー部材３０の支持部材として利用することができるため、上記ロールバー部材３０を簡単かつ適正に設置して、車両の横転時等に助手席シート４に着座した乗員を効果的に保護できるという利点がある。 In addition, as shown in the above embodiment, a roll bar member 30 that is installed so as to extend above the passenger seat 4 and protects an occupant seated on the passenger seat 4 and a seat back 19 of the passenger seat 4 are provided. According to the configuration in which the reinforcing seat frame member 24 is integrally connected, the seat frame member 24 can be used as a support member for the roll bar member 30, so that the roll bar member 30 can be easily and appropriately used. There is an advantage that it is possible to effectively protect an occupant seated on the passenger seat 4 when the vehicle rolls over.

なお、パイプ材等により上記シートフレーム部材２４と、ロールバー部材３０とを一体的に形成してなる上記実施形態に代え、上記シートフレーム部材２４とロールバー部材３０とを別体に形成し、これらをボルト止めする等の手段で連結することも可能である。また、上記シートフレーム部材２４を丸パイプ材により構成した上記実施形態に代え、鋼板等のプレート材により上記助手席シート４のシートフレーム部材を構成するとともに、該シートフレーム部材に上記ロールバー部材３０を連結した構造とすることも可能である。 Instead of the embodiment in which the seat frame member 24 and the roll bar member 30 are integrally formed of a pipe material or the like, the seat frame member 24 and the roll bar member 30 are formed separately. It is also possible to connect them by means such as bolting. Further, instead of the above-described embodiment in which the seat frame member 24 is configured by a round pipe material, the seat frame member of the passenger seat 4 is configured by a plate material such as a steel plate, and the roll bar member 30 is provided on the seat frame member. It is also possible to have a structure in which

上記実施形態のように、シートフレーム部材２４とロールバー部材３０とを一体的に形成するとともに、上記シートフレーム部材２４および第１，２連結部材３４，３５を介して該ロールバー部材３０を上記サイドパネル６ａ，６ｂからなる車体部材（車室１の内壁）に連結するように構成した場合には、上記シートフレーム部材２４およびロールバー部材３０からなる構造体を容易に形成できるとともに、その強度をより効果的に向上できる等の利点がある。 As in the above embodiment, the seat frame member 24 and the roll bar member 30 are integrally formed, and the roll bar member 30 is connected to the roll frame member 30 via the seat frame member 24 and the first and second connecting members 34 and 35. When configured to be connected to a vehicle body member (inner wall of the vehicle compartment 1) composed of the side panels 6a and 6b, a structure composed of the seat frame member 24 and the roll bar member 30 can be easily formed and its strength There is an advantage that can be improved more effectively.

また、上記実施形態では、上記第１，２連結部材３４，３５等を介してシートフレーム部材２４の左右両側部を上記サイドパネル６ａ，６ｂからなる車体部材（車室１の内壁）にそれぞれ連結するように構成した例について説明したが、この構成に代え、上記第１，２連結部材３４，３５の一方を省略し、シートフレーム部材２４の左側部または右側部の一方のみを車室１の内壁に連結した構造としてもよい。 In the above embodiment, the left and right side portions of the seat frame member 24 are connected to the vehicle body member (the inner wall of the vehicle compartment 1) including the side panels 6a and 6b via the first and second connecting members 34 and 35, respectively. However, in place of this configuration, one of the first and second connecting members 34 and 35 is omitted, and only one of the left side portion or the right side portion of the seat frame member 24 is disposed in the vehicle compartment 1. It is good also as a structure connected with the inner wall.

さらに、上記助手席シート４のシートバック１９を支持するシートフレーム部材２４を設けてなる上記実施形態に代え、助手席シート４のシートクッション１８からなるシート本体部を支持するシートフレーム部材を設け、該シートクッション１８用のシートフレーム部材を上記サイドパネル６ａ，６ｂからなる車体部材（車室１の内壁）に連結した構造としてもよい。 Further, in place of the above-described embodiment in which the seat frame member 24 for supporting the seat back 19 of the passenger seat 4 is provided, a seat frame member for supporting the seat main body portion including the seat cushion 18 of the passenger seat 4 is provided, The seat frame member for the seat cushion 18 may be connected to a vehicle body member (inner wall of the vehicle compartment 1) including the side panels 6a and 6b.

また、図７および図８に示すように、上記助手席シート４のシートフレーム部材２４を構成する横部材４０を助手席シート４の設置部から運転席シート３の設置部に向けて車幅方向に延びるように設置するとともに、その上部に一体的に連結されたロールバー部材４１を、助手席シート４の上方から運転席シート３の上方に向けて車幅方向に延びるように設置した構造としてもよい。 Further, as shown in FIGS. 7 and 8, the lateral member 40 constituting the seat frame member 24 of the passenger seat 4 is directed from the installation portion of the passenger seat 4 toward the installation portion of the driver seat 3 in the vehicle width direction. And a roll bar member 41 integrally connected to the upper portion thereof is installed so as to extend in the vehicle width direction from above the passenger seat 4 to above the driver seat 3. Also good.

そして、上記横部材４０の左右両端部を支持する側方部材４２および縦部材４３に設けられた第１，第２連結部材４４，４５によりシートフレーム部材２４を上記サイドパネル６ａ，６ｂ等からなる車体部材（車室１の内壁）にそれぞれ連結するように構成するように構成すれば、助手席シート４に着座した乗員を保護するために設置された上記ロールバー部材４１に、運転席シート３に着座した運転者を保護する機能を兼ね備えさせることができるため、簡単な構成で運転席シート３および助手席シート４に着座した乗員の両方を効果的に保護できるという利点がある。 And the side frame 42 which supports the right and left both ends of the said horizontal member 40, and the 1st, 2nd connection members 44 and 45 provided in the vertical member 43 make the seat frame member 24 consist of said side panels 6a and 6b. If configured so as to be respectively connected to the vehicle body member (inner wall of the passenger compartment 1), the driver seat 3 is attached to the roll bar member 41 installed to protect the passenger seated on the passenger seat 4. Therefore, there is an advantage that both the driver seat 3 and the passenger seated on the passenger seat 4 can be effectively protected with a simple configuration.

また、上記実施形態では、車室１内のフロアパネル２上に運転席シート３および助手席シート４だけが設置されたツーシータタイプで、ルーフパネルおよびこれを支持するピラーのないオープンカーに本発明を適用した例について説明したが、これに限られず、セダンタイプまたはハッチバックタイプ等の種々の車両についても、本発明を適用可能である。 Further, in the above embodiment, the two-seater type in which only the driver's seat 3 and the passenger's seat 4 are installed on the floor panel 2 in the passenger compartment 1 is used for an open car without a roof panel and a pillar that supports the roof panel. Although the example to which the invention is applied has been described, the present invention is not limited thereto, and the present invention can also be applied to various vehicles such as a sedan type or a hatchback type.

例えば、図９および図１０に示すように、フロアパネル２上に運転席シート３および助手席シート４からなる左右一対の前列シートが並設されるとともに、その後方側に左右一対の後列シート４６が並設され、かつ上記助手席シート４の上方にリヤヘッダ４７が車幅方向に延びるように設置されたセダンタイプ等の車両において、上記助手席シート４のシートバック１９の上辺部に沿って車幅方向に延びる横部材４８と、その車幅方向の外側端部から下方に延びる側方部材４９と、上記横部材４８の車幅方向の内側端部を支持する縦部材５０とを有するシートフレーム部材５１を設け、該シートフレーム部材５１を上記リヤヘッダ４７からなる車体部材に上記を連結した構造としてもよい。 For example, as shown in FIGS. 9 and 10, a pair of left and right front row seats including a driver seat 3 and a passenger seat seat 4 are arranged side by side on the floor panel 2, and a pair of left and right rear row seats 46 are provided on the rear side. And a sedan type vehicle in which a rear header 47 is installed above the passenger seat 4 so as to extend in the vehicle width direction, the vehicle is disposed along the upper side of the seat back 19 of the passenger seat 4. A seat frame having a transverse member 48 extending in the width direction, a side member 49 extending downward from an outer end in the vehicle width direction, and a longitudinal member 50 that supports an inner end in the vehicle width direction of the transverse member 48. A member 51 may be provided, and the seat frame member 51 may be connected to a vehicle body member including the rear header 47.

すなわち、図１１に示すように、上記側方部材４９の上端から上方に延びるように連設された第１連結部５２の上端部に形成された平坦部を、リヤヘッダ４７の下面に固定されたアングル材５４にボルト止めするとともに、上記側方部材４９の上端から上方に延びるように連設された第２連結部５３の上端部に形成された平坦部を、リヤヘッダ４７の下面に固定されたアングル材５４にボルト止めする等により、車室１の上方に設置されたルーフ部の内壁を構成する上記リヤヘッダ４７にシートフレーム部材５１を連結するように構成してもよい。この構成によれば、上記シートバック１９の側方にシートフレーム部材５１を連結するためのサイドパネル等が存在しない場合においても、上記助手席シート４の支持剛性を効果的に向上させることができる。 That is, as shown in FIG. 11, the flat portion formed at the upper end portion of the first connecting portion 52 provided so as to extend upward from the upper end of the side member 49 is fixed to the lower surface of the rear header 47. A flat portion formed at the upper end portion of the second connecting portion 53 that is bolted to the angle member 54 and extends upward from the upper end of the side member 49 is fixed to the lower surface of the rear header 47. The seat frame member 51 may be connected to the rear header 47 constituting the inner wall of the roof portion installed above the passenger compartment 1 by bolting the angle member 54 or the like. According to this configuration, even when there is no side panel or the like for connecting the seat frame member 51 to the side of the seat back 19, the support rigidity of the passenger seat 4 can be effectively improved. .

１車室
２フロアパネル
３運転席シート
４助手席シート
６ａ，６ｂサイドパネル（車室の内壁）
１９シートバック（シート本体部）
２４シートフレーム部材
３０，４１ロールバー部材
４７リヤヘッダ（車体部材） 1 Car compartment 2 Floor panel 3 Driver's seat 4 Passenger seat 6a, 6b Side panel (inner wall of the passenger compartment)
19 Seat back (Seat body)
24 Seat frame member 30, 41 Roll bar member 47 Rear header (vehicle body member)

Claims

An upper body structure of a vehicle in which at least a driver seat and a passenger seat are juxtaposed in the vehicle width direction above a floor panel forming a bottom surface of a passenger compartment, and the passenger seat is fixed to the floor panel. An upper body structure of a vehicle comprising: a seat frame member; and a seat main body portion supported by the seat frame member, wherein the seat frame member is connected to a vehicle body member constituting an inner wall of a passenger compartment. .

2. The upper vehicle body structure of a vehicle according to claim 1, wherein the seat frame member is connected to a vehicle body member comprising a side wall panel of a passenger compartment disposed on a side of the passenger seat.

3. The upper vehicle body structure for a vehicle according to claim 1, wherein the seat frame member is connected to a vehicle body member comprising a rear header disposed in the vehicle width direction and disposed above the passenger seat.

A roll bar member for protecting an occupant seated on the passenger seat is installed on the passenger seat so as to extend upward, and the roll bar member is connected to the seat frame member. The upper body structure of the vehicle according to any one of 1 to 3.

The roll bar member and the seat frame member are integrally formed, and the roll bar member is connected to the vehicle body member via the seat frame member. The upper body structure of the vehicle described in 1.

The roll bar member is installed so as to extend in the vehicle width direction from above the passenger seat toward the top of the driver seat, thereby protecting the passenger seated on the driver seat. The upper body structure of a vehicle according to claim 4 or 5.

The vehicle upper body structure according to any one of claims 1 to 6, wherein the vehicle is an open car provided with a roof member that can be opened and closed above a passenger compartment.