JP6878789B2 - Vehicle seat mounting structure - Google Patents

Vehicle seat mounting structure Download PDF

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JP6878789B2
JP6878789B2 JP2016163836A JP2016163836A JP6878789B2 JP 6878789 B2 JP6878789 B2 JP 6878789B2 JP 2016163836 A JP2016163836 A JP 2016163836A JP 2016163836 A JP2016163836 A JP 2016163836A JP 6878789 B2 JP6878789 B2 JP 6878789B2
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seat
vehicle
seat mounting
floor tunnel
cross members
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JP2018030438A (en
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清広 岸野
清広 岸野
晋栄 望月
晋栄 望月
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Suzuki Motor Co Ltd
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本発明は、車両用シートの取付部構造に関する。 The present invention relates to a vehicle seat mounting structure.

従来の車両用シートの取付部構造において、シート取付部の高さは、フロアパンの車両幅方向中央部に設けたトンネル状のバックボーン（フロアトンネル）の上面とほぼ同じ高さ位置に設定されている（例えば、特許文献１参照）。このような従来の取付部構造では、車両用シートの車室中央側（車両幅方向中心側）の固定箇所を支持するシートブラケットをバックボーンの左右両側面などに接合することによって、シート取付部の剛性を確保するように構成されている。 In the conventional vehicle seat mounting portion structure, the height of the seat mounting portion is set to be substantially the same height as the upper surface of the tunnel-shaped backbone (floor tunnel) provided in the center of the floor pan in the vehicle width direction. (See, for example, Patent Document 1). In such a conventional mounting portion structure, the seat bracket that supports the fixing portion on the vehicle interior center side (vehicle width direction center side) of the vehicle seat is joined to the left and right side surfaces of the backbone to form the seat mounting portion. It is configured to ensure rigidity.

特開２０１４−２２７０２９号公報Japanese Unexamined Patent Publication No. 2014-227209

しかしながら、上述した従来の車両用シートの取付部構造においては、シート取付部の高さがバックボーンの上面とほぼ同じ高さで、低い位置に設定されているので、着座位置が高いスーパーハイト系車両のシートに適用する場合、シートブラケットがタワー状の倒れやすい構造となる。このため、従来の車両用シートの取付部構造では、シート取付部の剛性が低下し、車両走行中などにおいて、シート振動が発生したり、乗員が不安定感を感じたりするようになる懸念があった。 However, in the conventional vehicle seat mounting structure described above, the height of the seat mounting portion is set to be approximately the same as the upper surface of the backbone and is set to a low position, so that the seating position is high for super-height vehicles. When applied to the seat of, the seat bracket has a tower-like structure that easily falls over. For this reason, in the conventional vehicle seat mounting portion structure, the rigidity of the seat mounting portion is reduced, and there is a concern that seat vibration may occur or the occupant may feel instability while the vehicle is running. there were.

本発明はこのような実状に鑑みてなされたものであって、その目的は、従来のシート着座位置よりも高いシート着座位置に設定しながらシート取付部の剛性を効率良く向上させ、車両走行中などに発生するシート振動の低減及び乗員に与える不安定感の解消を図ることが可能な車両用シートの取付部構造を提供することにある。 The present invention has been made in view of such an actual situation, and an object of the present invention is to efficiently improve the rigidity of the seat mounting portion while setting the seat seating position higher than the conventional seat seating position, and the vehicle is running. It is an object of the present invention to provide a vehicle seat mounting portion structure capable of reducing the seat vibration generated in the above and the like and eliminating the feeling of instability given to the occupant.

上記従来技術の有する課題を解決するために、本発明は、フロアパネルの車両幅方向の中間部に設けられるフロアトンネル部と、前記フロアパネルの上部に設けられ、車両幅方向において前記フロアトンネル部に連結される左右のクロスメンバと、 左右のシートが取付けられるシートレール組立体を前記左右のクロスメンバに取付けるためのシート取付ブラケットと、を備える車両用シートの取付部構造において、前記シート取付ブラケットが補強部材を介して前記クロスメンバに取付けられている。 To solve the problems of the prior art, the present invention includes a floor tunnel portion provided at an intermediate portion in the vehicle width direction of the floor panel, is provided at an upper part of the floor panel, the floor tunnel in the vehicle width direction In a vehicle seat mounting structure including left and right cross members connected to the left and right cross members and seat mounting brackets for mounting the seat rail assembly to which the left and right seats are mounted on the left and right cross members , the seat mounting brackets are provided. There has been kicked attached to the cross member via the reinforcing member.

上述の如く、本発明に係る車両用シートの取付部構造は、フロアパネルの車両幅方向の中間部に設けられるフロアトンネル部と、前記フロアパネルの上部に設けられ、車両幅方向において前記フロアトンネル部に連結される左右のクロスメンバと、 左右のシートが取付けられるシートレール組立体を前記左右のクロスメンバに取付けるためのシート取付ブラケットと、を備え、前記シート取付ブラケットが補強部材を介して前記クロスメンバに取付けられているので、次のような効果を得ることができる。
すなわち、本発明の取付部構造においては、上面がフロアトンネル部の上面よりも高く位置し、かつ車両内側に位置する左右のシート取付ブラケットがフロアトンネル部を間に挟んで配置され、フロアトンネル部の上方に設けられた連結部材によって互いに連結されているので、シート取付部の剛性を向上させることができる。したがって、シート着座位置を高く設定するスーパーハイト系車両などに適用しても、シート取付部の変形を抑えるとともに、シート取付ブラケットの横倒れを防止することができる。しかも、車両走行中などに発生するシート振動を低減させ、シートに着座した乗員の不安定感を解消し、安定した乗り心地を確保することができる。 As described above, the vehicle seat mounting portion structure according to the present invention is provided with a floor tunnel portion provided in the middle portion of the floor panel in the vehicle width direction and an upper portion of the floor panel, and the floor tunnel is provided in the vehicle width direction. The left and right cross members connected to the portions and the seat mounting bracket for mounting the seat rail assembly to which the left and right seats are attached to the left and right cross members are provided , and the seat mounting bracket is provided via a reinforcing member. because it is kicked attached to the cross member, it is possible to obtain the following effects.
That is, in the mounting portion structure of the present invention, the upper surface is located higher than the upper surface of the floor tunnel portion, and the left and right seat mounting brackets located inside the vehicle are arranged with the floor tunnel portion in between. Since they are connected to each other by a connecting member provided above the seat mounting portion, the rigidity of the seat mounting portion can be improved. Therefore, even if it is applied to a super-height vehicle in which the seat seating position is set high, it is possible to suppress the deformation of the seat mounting portion and prevent the seat mounting bracket from falling sideways. Moreover, the seat vibration generated while the vehicle is running can be reduced, the instability of the occupant seated on the seat can be eliminated, and a stable ride quality can be ensured.

本発明の第１実施形態に係る車両用シートの取付部構造が適用されたシート取付部付近を車両前方から見た斜視図である。It is a perspective view of the vicinity of the seat mounting portion to which the mounting portion structure of the vehicle seat according to the first embodiment of the present invention is applied, as viewed from the front of the vehicle. 図１におけるＸ部の拡大斜視図である。It is an enlarged perspective view of part X in FIG. 図１におけるシート取付部付近を車両前方から見た正面図である。It is a front view which looked at the vicinity of the seat attachment part in FIG. 1 from the front of a vehicle. 本発明の第２実施形態に係る車両用シートの取付部構造が適用されたシート取付部を車両前方斜め上から見た斜視図である。It is a perspective view of the seat attachment part to which the attachment part structure of the vehicle seat which concerns on 2nd Embodiment of this invention is applied seen from diagonally above the front of a vehicle. 本発明の第１実施形態の変形例に係る車両用シートの取付部構造が適用されたシート取付部を車両後方斜め上から見た斜視図である。It is a perspective view of the seat attachment part to which the attachment part structure of the vehicle seat which concerns on the modification of 1st Embodiment of this invention is applied seen from the rear diagonally above the vehicle.

以下、本発明を図示の実施の形態に基づいて詳細に説明する。
図１〜図５は本発明の実施形態に係る車両用シートの取付部構造を示すものである。なお、図において、矢印Ｆｒ方向は車両前方を示し、矢印Ｉ方向は車両幅方向内側を示し、矢印Ｕ方向は車両上方を示している。 Hereinafter, the present invention will be described in detail based on the illustrated embodiments.
1 to 5 show a structure of a vehicle seat mounting portion according to an embodiment of the present invention. In the figure, the arrow Fr direction indicates the front of the vehicle, the arrow I direction indicates the inside of the vehicle width direction, and the arrow U direction indicates the upper side of the vehicle.

［第１実施形態］
図１〜図３は、本発明の第１実施形態に係る車両用シートの取付部構造を示している。
本発明の第１実施形態に係る車両用シートの取付部構造が適用される車両１は、図１〜図３に示すように、シート着座位置が高い車両（例えば、スーパーハイト系車両）であり、車室床面を構成するフロアパネル２を備えている。フロアパネル２の車両幅方向の中央部（車両幅方向の中間部）には、車両前後方向に延在するフロアトンネル部２１が設けられている。このフロアトンネル部２１は、車両上方へ向けて突出した断面略台形状に形成されており、運転席側の床面と助手席の床面とを二分するように、フロアパネル２の面上に設けられている。そして、フロアパネル２の車両幅方向の左右両側には、車両前後方向に延在するサイドシル部２２が設けられている。 [First Embodiment]
1 to 3 show the structure of the mounting portion of the vehicle seat according to the first embodiment of the present invention.
As shown in FIGS. 1 to 3, the vehicle 1 to which the vehicle seat mounting portion structure according to the first embodiment of the present invention is applied is a vehicle having a high seat seating position (for example, a super height vehicle). , The floor panel 2 constituting the floor surface of the vehicle interior is provided. A floor tunnel portion 21 extending in the front-rear direction of the vehicle is provided at the central portion (intermediate portion in the vehicle width direction) of the floor panel 2 in the vehicle width direction. The floor tunnel portion 21 is formed in a substantially trapezoidal cross section protruding upward from the vehicle, and is formed on the surface of the floor panel 2 so as to divide the floor surface on the driver's seat side and the floor surface on the passenger seat into two. It is provided. Side sill portions 22 extending in the front-rear direction of the vehicle are provided on both the left and right sides of the floor panel 2 in the vehicle width direction.

フロアパネル２の上部には、図１〜図３に示すように、フロアトンネル部２１とサイドシル部２２とを連結する左右の前側クロスメンバ３Ａ，３Ｂ及び後側クロスメンバ４Ａ，４Ｂが、車両前後に所定の間隔を空けながら車両幅方向に沿って同じ位置にそれぞれ配置されている。前側クロスメンバ３Ａ，３Ｂ及び後側クロスメンバ４Ａ，４Ｂは、前後左右の端部にフランジ部３ａ，３ｂ，４ａ，４ｂを有する断面略ハット型形状の縦壁であり、これらフランジ部３ａ，３ｂ，４ａ，４ｂをフロアパネル２の上面、フロアトンネル部２１の傾斜面及びサイドシル部２２の室内側側面にスポット溶接などで接合して取付けることにより、フロアパネル２の上部に立設されている。しかも、左右の前側クロスメンバ３Ａ，３Ｂ及び後側クロスメンバ４Ａ，４Ｂの上面は、フロアトンネル部２１の上面２１ａとほぼ同じ高さ位置に設定されている。
なお、フロアトンネル部２１の内側には、左右の前側クロスメンバ３Ａ，３Ｂ及び後側クロスメンバ４Ａ，４Ｂと同じ位置にブレース５が設けられており、該ブレース５によって、当該箇所に位置するフロアトンネル部２１の剛性が高められている。 On the upper part of the floor panel 2, as shown in FIGS. 1 to 3, left and right front cross members 3A and 3B and rear cross members 4A and 4B connecting the floor tunnel portion 21 and the side sill portion 22 are located in the front and rear of the vehicle. They are arranged at the same position along the vehicle width direction with a predetermined interval. The front cross members 3A and 3B and the rear cross members 4A and 4B are vertical walls having a substantially hat-shaped cross section having flange portions 3a, 3b, 4a and 4b at the front, rear, left and right ends, and these flange portions 3a and 3b. , 4a, 4b are joined and attached to the upper surface of the floor panel 2, the inclined surface of the floor tunnel portion 21, and the indoor side surface of the side sill portion 22 by spot welding or the like, so that they are erected on the upper part of the floor panel 2. Moreover, the upper surfaces of the left and right front cross members 3A and 3B and the rear cross members 4A and 4B are set at substantially the same height as the upper surface 21a of the floor tunnel portion 21.
Incidentally, inside the floor tunnel portion 21, the left and right front cross member 3A, 3B and the rear cross member 4A, the brace 5 is provided at the same position as 4B, by the brace 5, located in the relevant section The rigidity of the floor tunnel portion 21 is increased.

一方、本実施形態の車両１の車室内には、図１及び図２に示すように、着座位置の高い車両用シート６が搭載されている。車両用シート６は、車室内の車両前方側に設けられる前席シートであり、車両幅方向の左右両側に配置される助手席側の前席シート６Ａ及び運転席側の前席シート６Ｂから構成されている。これら前席シート６Ａ，６Ｂの下部は、車両幅方向に一定の間隔を空けて設けられる一対のシートレール組立体７にそれぞれ取付けられている。そして、シートレール組立体７は、車両内側に位置する左右のシート取付ブラケット８Ａ，８Ｂと、車両外側に位置する左右のシート取付ブラケット８Ｃ，８Ｄを介して、左右の前側クロスメンバ３Ａ，３Ｂ及び後側クロスメンバ４Ａ，４Ｂに取付けられている。 On the other hand, as shown in FIGS. 1 and 2, a vehicle seat 6 having a high seating position is mounted in the vehicle interior of the vehicle 1 of the present embodiment. The vehicle seat 6 is a front seat provided on the front side of the vehicle in the vehicle interior, and includes front seats 6A on the passenger side and front seats 6B on the driver side arranged on both the left and right sides in the vehicle width direction. Has been done. The lower portions of the front seats 6A and 6B are attached to a pair of seat rail assemblies 7 provided at regular intervals in the vehicle width direction. Then, the seat rail assembly 7 is provided with the left and right front cross members 3A, 3B and the left and right front cross members 3A, 3B via the left and right seat mounting brackets 8A, 8B located inside the vehicle and the left and right seat mounting brackets 8C, 8D located outside the vehicle. It is attached to the rear cross members 4A and 4B.

本実施形態のシート取付ブラケット８Ａ〜８Ｄは、図１〜図３に示すように、左右の前側クロスメンバ３Ａ，３Ｂ及び後側クロスメンバ４Ａ，４Ｂの上面３Ａａ，３Ｂａ，４Ａａ，４Ｂａより車両上方に向かって延びており、シート取付ブラケット８Ａ〜８Ｄの上面８Ａａ〜８Ｄａがフロアトンネル部２１の上面２１ａよりも高い位置に配置されている。そのため、シート取付ブラケット８Ａ〜８Ｄは、上面部が閉じた四角錐形の筒状体であり、起立した状態でそれぞれ設けられている。そして、前側クロスメンバ３Ａ，３Ｂ及び後側クロスメンバ４Ａ，４Ｂの上面３Ａａ，３Ｂａ，４Ａａ，４Ｂａからのシート取付ブラケット８Ａ〜８Ｄの高さは、安定性などを確保する観点から、フロアパネル２からフロアトンネル部２１の上面２１ａまでの高さの約半分に設定されている。 As shown in FIGS. 1 to 3, the seat mounting brackets 8A to 8D of the present embodiment are above the vehicle above the upper surfaces 3Aa, 3Ba, 4Aa, 4Ba of the left and right front cross members 3A, 3B and the rear cross members 4A, 4B. The upper surfaces 8Aa to 8Da of the seat mounting brackets 8A to 8D are arranged at a position higher than the upper surface 21a of the floor tunnel portion 21. Therefore, the seat mounting brackets 8A to 8D are quadrangular pyramid-shaped tubular bodies having a closed upper surface portion, and are provided in an upright state. The heights of the seat mounting brackets 8A to 8D from the upper surfaces 3Aa, 3Ba, 4Aa, 4Ba of the front cross members 3A, 3B and the rear cross members 4A, 4B are the floor panel 2 from the viewpoint of ensuring stability and the like. The height is set to about half of the height from the floor tunnel portion 21 to the upper surface 21a of the floor tunnel portion 21.

また、シート取付ブラケット８Ａ〜８Ｄのうち、車両内側に位置する左右のシート取付ブラケット８Ａ，８Ｂは、フロアトンネル部２１を挟んで対向して配置されている。しかも、車両内側に位置する左右のシート取付ブラケット８Ａ，８Ｂは、連結部材９によって連結されており、左右のシート取付ブラケット８Ａ，８Ｂが連結部材９を介して一体化されている。この連結部材９は、フロアトンネル部２１の上方に設けられ、該フロアトンネル部２１を跨いで車両幅方向に延在して配置されている。
さらに、連結部材９は、縦方向に所定の幅を有する部材であり、左右両端部が溶接（またはボルト締結）などによって、シート取付ブラケット８Ａ，８Ｂの前面（もしくは後面）の上部に取付けられる構造を有している。 Further, among the seat mounting brackets 8A to 8D, the left and right seat mounting brackets 8A and 8B located inside the vehicle are arranged so as to face each other with the floor tunnel portion 21 interposed therebetween. Moreover, the left and right seat mounting brackets 8A and 8B located inside the vehicle are connected by a connecting member 9, and the left and right seat mounting brackets 8A and 8B are integrated via the connecting member 9. The connecting member 9 is provided above the floor tunnel portion 21, and is arranged so as to extend across the floor tunnel portion 21 in the vehicle width direction.
Further, the connecting member 9 is a member having a predetermined width in the vertical direction, and has a structure in which both left and right ends are attached to the upper part of the front surface (or rear surface) of the seat mounting brackets 8A and 8B by welding (or bolt fastening) or the like. have.

また、本実施形態の取付部構造において、左右の前側クロスメンバ３Ａ，３Ｂ及び後側クロスメンバ４Ａ，４Ｂの両端部の内側には、図３に示すように、シート取付ブラケット８Ａ〜８Ｄの取付部の剛性を高める補強部材１０Ａ〜１０Ｄがそれぞれ設けられている。補強部材１０Ａ〜１０Ｄは、配置される左右の前側クロスメンバ３Ａ，３Ｂ及び後側クロスメンバ４Ａ，４Ｂの端部及びフロアトンネル部２１の側面と対応する外形及び断面形状を有し、クロスメンバ３Ａ，３Ｂ，４Ａ，４Ｂの端部及びフロアトンネル部２１の側面に沿って配置した状態で、取付けられるようになっている。そして、シート取付ブラケット８Ａ〜８Ｄは、補強部材１０Ａ〜１０Ｄと、左右の前側クロスメンバ３Ａ，３Ｂ及び後側クロスメンバ４Ａ，４Ｂとを挟んだ位置で、これら左右の前側クロスメンバ３Ａ，３Ｂ及び後側クロスメンバ４Ａ，４Ｂの上面３Ａａ，３Ｂａ，４Ａａ，４Ｂａに設けられている。
そのため、シート取付ブラケット８Ａ〜８Ｄの下部開口周縁の前後部分は、下方へ延設した前後フランジ部８Ａｂ〜８Ｄｂを前側クロスメンバ３Ａ，３Ｂ及び後側クロスメンバ４Ａ，４Ｂの前後面に補強部材１０Ａ〜１０Ｄを介して接合されて取付けられている。また、シート取付ブラケット８Ａ〜８Ｄの下部開口周縁の左右両側部分は、車両幅方向へ延設した左右フランジ部８Ａｃ〜８Ｄｃを前側クロスメンバ３Ａ，３Ｂ及び後側クロスメンバ４Ａ，４Ｂの上面３Ａａ，３Ｂａ，４Ａａ，４Ｂａに補強部材１０Ａ〜１０Ｄを介して接合されて取付けられている。 Further, in the mounting portion structure of the present embodiment, as shown in FIG. 3, seat mounting brackets 8A to 8D are mounted inside both ends of the left and right front cross members 3A and 3B and the rear cross members 4A and 4B. Reinforcing members 10A to 10D for increasing the rigidity of the portion are provided respectively. The reinforcing members 10A to 10D have an outer shape and a cross-sectional shape corresponding to the ends of the left and right front cross members 3A and 3B and the rear cross members 4A and 4B and the side surfaces of the floor tunnel portion 21, and the cross members 3A. , 3B, 4A, 4B, and the floor tunnel portion 21 can be installed in a state of being arranged along the side surface thereof. The seat mounting brackets 8A to 8D are positioned so as to sandwich the reinforcing members 10A to 10D with the left and right front cross members 3A and 3B and the rear cross members 4A and 4B. It is provided on the upper surfaces 3Aa, 3Ba, 4Aa, 4Ba of the rear cross members 4A, 4B.
Therefore, in the front and rear portions of the lower opening peripheral edge of the seat mounting brackets 8A to 8D, the front and rear flange portions 8Ab to 8Db extending downward are reinforced on the front and rear surfaces of the front cross members 3A and 3B and the rear cross members 4A and 4B. It is joined and attached via 10D. Further, on the left and right side portions of the lower opening peripheral edge of the seat mounting brackets 8A to 8D, the left and right flange portions 8Ac to 8Dc extending in the vehicle width direction are formed on the front cross members 3A and 3B and the upper surfaces 3Aa of the rear cross members 4A and 4B. It is joined and attached to 3Ba, 4Aa, and 4Ba via reinforcing members 10A to 10D.

このように、本発明の第１実施形態に係る車両用シート６の取付部構造では、フロアトンネル部２１とサイドシル部２２とを連結するクロスメンバ３Ａ，３Ｂ，４Ａ，４Ｂが車両幅方向に沿ってフロアパネル２の上部に配置され、車両用シート６の前席シート６Ａ，６Ｂがシートレール組立体７に取付けられ、シートレール組立体７がシート取付ブラケット８Ａ〜８Ｄを介して左右のクロスメンバ３Ａ，３Ｂ，４Ａ，４Ｂに取付けられ、シート取付ブラケット８Ａ〜８Ｄは、クロスメンバ３Ａ，３Ｂの上面より車両上方に延びている。さらに、シート取付ブラケット８Ａ〜８Ｄの上面８Ａａ〜８Ｄａは、フロアトンネル部２１の上面２１ａよりも高い位置に配置され、車両内側に位置する左右のシート取付ブラケット８Ａ，８Ｂは、フロアトンネル部２１を間に挟んで配置され、かつ左右のシート取付ブラケット８Ａ，８Ｂを連結する連結部材９がフロアトンネル部２１の上方に設けられている。
そのため、第１実施形態の取付部構造においては、上面８Ａａ〜８Ｄａがフロアトンネル部２１の上面２１ａよりも高く位置し、かつ車両内側に位置する左右のシート取付ブラケット８Ａ，８Ｂがフロアトンネル部２１を間に挟んで配置され、フロアトンネル部２１の上方に設けられた連結部材９によって連結され、一体化した構造となっているので、シート取付部の剛性を向上させることができる。したがって、第１実施形態の取付部構造によれば、シート着座位置の高いスーパーハイト系車両などに適用した場合でも、シート取付部に加わる荷重を連結部材９で支えることが可能となり、シート取付部の変形を抑えることができるとともに、シート取付ブラケット８Ａ，８Ｂの横倒れを効果的に防止できる。しかも、車両１の走行中などに発生するシート振動を低減させることが可能になるので、車両用シート６の前席シート６Ａ，６Ｂに着座した乗員の不安定感を解消でき、安定した乗り心地を確保することができる。 As described above, in the mounting portion structure of the vehicle seat 6 according to the first embodiment of the present invention, the cross members 3A, 3B, 4A, 4B connecting the floor tunnel portion 21 and the side sill portion 22 are along the vehicle width direction. The front seats 6A and 6B of the vehicle seat 6 are attached to the seat rail assembly 7, and the seat rail assembly 7 is attached to the left and right cross members via the seat attachment brackets 8A to 8D. It is attached to 3A, 3B, 4A, 4B, and the seat attachment brackets 8A to 8D extend above the vehicle surface from the upper surfaces of the cross members 3A, 3B. Further, the upper surfaces 8Aa to 8Da of the seat mounting brackets 8A to 8D are arranged at positions higher than the upper surface 21a of the floor tunnel portion 21, and the left and right seat mounting brackets 8A and 8B located inside the vehicle have the floor tunnel portion 21. A connecting member 9 that is arranged between the seats and connects the left and right seat mounting brackets 8A and 8B is provided above the floor tunnel portion 21.
Therefore, in the mounting portion structure of the first embodiment, the upper surfaces 8Aa to 8Da are located higher than the upper surface 21a of the floor tunnel portion 21, and the left and right seat mounting brackets 8A and 8B located inside the vehicle are the floor tunnel portion 21. Is arranged in between, and is connected by a connecting member 9 provided above the floor tunnel portion 21 to form an integrated structure, so that the rigidity of the seat mounting portion can be improved. Therefore, according to the mounting portion structure of the first embodiment, even when applied to a super height vehicle having a high seat seating position, the load applied to the seat mounting portion can be supported by the connecting member 9, and the seat mounting portion can be supported. It is possible to suppress the deformation of the seat mounting brackets 8A and 8B, and effectively prevent the seat mounting brackets 8A and 8B from falling sideways. Moreover, since it is possible to reduce the seat vibration generated while the vehicle 1 is running, it is possible to eliminate the instability of the occupants seated on the front seats 6A and 6B of the vehicle seat 6, and the ride quality is stable. Can be secured.

また、第１実施形態の取付部構造においては、左右の前側クロスメンバ３Ａ，３Ｂ及び後側クロスメンバ４Ａ，４Ｂの両端部の内側に補強部材１０Ａ〜１０Ｄがそれぞれ設けられ、シート取付ブラケット８Ａ〜８Ｄが、補強部材１０Ａ〜１０Ｄと、左右の前側クロスメンバ３Ａ，３Ｂ及び後側クロスメンバ４Ａ，４Ｂとを挟んだ位置で、これら左右の前側クロスメンバ３Ａ，３Ｂ及び後側クロスメンバ４Ａ，４Ｂの上面３Ａａ，３Ｂａ，４Ａａ，４Ｂａに設けられている。
そのため、第１実施形態の取付部構造においては、シート取付ブラケット８Ａ〜８Ｄの取付部の剛性が補強部材１０Ａ〜１０Ｄによって高められることになる。したがって、第１実施形態の取付部構造によれば、荷重が当該シート取付ブラケット８Ａ〜８Ｄの取付部に加わった際に生じる可能性がある左右の前側クロスメンバ３Ａ，３Ｂ及び後側クロスメンバ４Ａ，４Ｂの変形を低減させることができるとともに、シート取付ブラケット８Ａ〜８Ｄの変形を小さくすることができる。 Further, in the mounting portion structure of the first embodiment, reinforcing members 10A to 10D are provided inside both ends of the left and right front cross members 3A and 3B and the rear cross members 4A and 4B, respectively, and the seat mounting brackets 8A to 8A to 8D sandwiches the reinforcing members 10A to 10D with the left and right front cross members 3A and 3B and the rear cross members 4A and 4B, and these left and right front cross members 3A and 3B and rear cross members 4A and 4B. It is provided on the upper surfaces 3Aa, 3Ba, 4Aa, 4Ba of the above.
Therefore, in the mounting portion structure of the first embodiment, the rigidity of the mounting portion of the seat mounting brackets 8A to 8D is increased by the reinforcing members 10A to 10D. Therefore, according to the mounting portion structure of the first embodiment, the left and right front cross members 3A and 3B and the rear cross members 4A that may occur when a load is applied to the mounting portions of the seat mounting brackets 8A to 8D. , 4B deformation can be reduced, and the deformation of the seat mounting brackets 8A to 8D can be reduced.

さらに、第１実施形態の取付部構造においては、連結部材９が縦方向に所定の幅を有する部材であり、シート取付ブラケット８Ａ，８Ｂの前面もしくは後面に取付けられる構造を有している。したがって、第１実施形態の取付部構造によれば、シート取付ブラケット８Ａ，８Ｂの左右方向への倒れによる変形に対し連結部材９を効果的に働かせることができ、左右のシート取付ブラケット８Ａ，８Ｂの変形を確実に抑制することができる。 Further, in the mounting portion structure of the first embodiment, the connecting member 9 is a member having a predetermined width in the vertical direction, and has a structure of being mounted on the front surface or the rear surface of the seat mounting brackets 8A and 8B. Therefore, according to the mounting portion structure of the first embodiment, the connecting member 9 can be effectively operated against the deformation of the seat mounting brackets 8A and 8B due to the tilting in the left-right direction, and the left and right seat mounting brackets 8A and 8B can be effectively operated. Deformation can be reliably suppressed.

［第２実施形態］
図４は本発明の第２実施形態に係る車両用シートの取付部構造を示すものである。
本発明の第２実施形態に係る取付部構造が第１実施形態の取付部構造と異なる点は、図４に示すように、フロアトンネル部２１を間に挟んで配置される左右のシート取付ブラケット８Ａ，８Ｂと、フロアトンネル部２１を跨いで車両幅方向に延在する連結部材９とが一体に形成された鞍型の構造を有しており、一体型シート取付ブラケット８０として構成されていることである。一体型シート取付ブラケット８０は、左右のシート取付ブラケット８Ａ，８Ｂを形成する左右のブラケット部８０Ａ，８０Ｂと、連結部材９を形成する部分であって、左右のブラケット部８０Ａ，８０Ｂを連結する連結部９０とを有している。また、この連結部９０は、フロアトンネル部２１の上面２１ａに接地された状態で、当該フロアトンネル部２１の上面２１ａを覆うように固定されている。そのため、連結部９０の車両幅方向の中央部分は、左右のブラケット部８０Ａ，８０Ｂの上面８０Ａａ，８０Ｂａよりも低く、車両下方に凹んだ形状に形成されており、下部側がフロアトンネル部２１の上面２１ａと対応した形状を有している。その他の構成は上記第１実施形態と同様であり、これと同一の部材及び部分は同一の符号で示している。 [Second Embodiment]
FIG. 4 shows the structure of the mounting portion of the vehicle seat according to the second embodiment of the present invention.
The difference between the mounting portion structure according to the second embodiment of the present invention and the mounting portion structure of the first embodiment is that, as shown in FIG. 4, the left and right seat mounting brackets arranged with the floor tunnel portion 21 sandwiched between them. It has a saddle-shaped structure in which 8A and 8B and a connecting member 9 extending in the vehicle width direction straddling the floor tunnel portion 21 are integrally formed, and is configured as an integrated seat mounting bracket 80. That is. The integrated seat mounting bracket 80 is a portion that forms a connecting member 9 with the left and right bracket portions 80A and 80B that form the left and right seat mounting brackets 8A and 8B, and connects the left and right bracket portions 80A and 80B. It has a part 90. Further, the connecting portion 90 is fixed so as to cover the upper surface 21a of the floor tunnel portion 21 in a state of being grounded to the upper surface 21a of the floor tunnel portion 21. Therefore, the central portion of the connecting portion 90 in the vehicle width direction is lower than the upper surfaces 80Aa and 80Ba of the left and right bracket portions 80A and 80B, and is formed in a concave shape below the vehicle, and the lower side is the upper surface of the floor tunnel portion 21. It has a shape corresponding to 21a. Other configurations are the same as those in the first embodiment, and the same members and parts are indicated by the same reference numerals.

本発明の第２実施形態に係る車両用シートの取付部構造では、フロアトンネル部２１を間に挟んで配置される左右のシート取付ブラケット８Ａ，８Ｂと、連結部材９とが一体に形成され、左右のシート取付ブラケット８Ａ，８Ｂを連結する連結部９０が、フロアトンネル部２１の上面２１ａに接地された状態で固定され、連結部９０の車両幅方向の中央部分が、左右のシート取付ブラケット８Ａ，８Ｂの上面よりも低く、車両下方に凹んだ形状に形成されている。すなわち、左右のブラケット部８０Ａ，８０Ｂと、左右のブラケット部８０Ａ，８０Ｂを連結する連結部９０とが一体化した一体型シート取付ブラケット８０として構成されている。したがって、第１実施形態の取付部構造によれば、シート取付部の剛性を高めることができるとともに、荷重入力時におけるシート取付ブラケット８０や左右前後のクロスメンバ３Ａ，３Ｂ，４Ａ，４Ｂなどの変形をより一層低減させることができる。その他の効果は、上記第１実施形態と同様に得ることができる。 In the vehicle seat mounting portion structure according to the second embodiment of the present invention, the left and right seat mounting brackets 8A and 8B arranged with the floor tunnel portion 21 sandwiched between them, and the connecting member 9 are integrally formed. The connecting portion 90 connecting the left and right seat mounting brackets 8A and 8B is fixed in a state of being grounded to the upper surface 21a of the floor tunnel portion 21, and the central portion of the connecting portion 90 in the vehicle width direction is the left and right seat mounting brackets 8A. , 8B is lower than the upper surface and is formed in a concave shape below the vehicle. That is, it is configured as an integrated seat mounting bracket 80 in which the left and right bracket portions 80A and 80B and the connecting portion 90 connecting the left and right bracket portions 80A and 80B are integrated. Therefore, according to the mounting portion structure of the first embodiment, the rigidity of the seat mounting portion can be increased, and the seat mounting bracket 80 and the left and right front and rear cross members 3A, 3B, 4A, 4B and the like are deformed at the time of load input. Can be further reduced. Other effects can be obtained in the same manner as in the first embodiment.

以上、本発明の実施の形態につき述べたが、本発明は既述の実施の形態に限定されるものではなく、本発明の技術的思想に基づいて各種の変形及び変更が可能である。 Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications and modifications can be made based on the technical idea of the present invention.

例えば、既述の第１実施形態における連結部材９は、縦方向に所定の幅を有する部材であり、左右両端部がシート取付ブラケット８Ａ，８Ｂの前面（もしくは後面）に取付けられる構造を有しているが、図５に示すような断面Ｌ字形状の連結部材９Ａ，９Ｂを用いることも可能である。この場合、前方側の連結部材９Ａはシート取付ブラケット８Ａ，８Ｂの上面８Ａａ，８Ｂａ及び前面にボルト締結で取付けられ、後方側の連結部材９Ｂはシート取付ブラケット８Ａ，８Ｂの上面８Ａａ，８Ｂａ及び後面にボルト締結で取付けられている。しかも、シート取付ブラケット８Ａ，８Ｂの上面８Ａａ，８Ｂａでは、シートレール組立体７と連結部材９Ａ，９Ｂとが共締めされる構造となっている。 For example, the connecting member 9 in the first embodiment described above is a member having a predetermined width in the vertical direction, and has a structure in which both left and right ends are attached to the front surfaces (or rear surfaces) of the seat mounting brackets 8A and 8B. However, it is also possible to use connecting members 9A and 9B having an L-shaped cross section as shown in FIG. In this case, the front connecting member 9A is attached to the upper surfaces 8Aa and 8Ba of the seat mounting brackets 8A and 8B and the front surface by bolting, and the rear connecting member 9B is attached to the upper surfaces 8Aa and 8Ba and the rear surface of the seat mounting brackets 8A and 8B. It is attached by bolting to. Moreover, the upper surfaces 8Aa and 8Ba of the seat mounting brackets 8A and 8B have a structure in which the seat rail assembly 7 and the connecting members 9A and 9B are jointly fastened.

１ 車両
２ フロアパネル
３Ａ，３Ｂ 前側クロスメンバ
３Ａａ，３Ｂａ 上面
３ａ，３ｂフランジ部
４Ａ，４Ｂ 後側クロスメンバ
４Ａａ，４Ｂａ 上面
４ａ，４ｂ フランジ部
６ 車両用シート
６Ａ 助手席側の前席シート
６Ｂ 運転席側の前席シート
８Ａ〜８Ｄ シート取付ブラケット
８Ａａ〜８Ｄａ 上面
８Ａｂ〜８Ｄｂ 前後フランジ部
８Ａｃ〜８Ｄｃ 左右フランジ部
９，９Ａ，９Ｂ 連結部材
１０Ａ〜１０Ｄ 補強部材
２１ フロアトンネル部
２１ａ 上面
２２ サイドシル部
８０ 一体型シート取付ブラケット
８０Ａ，８０Ｂ 左右のブラケット部
９０ 連結部 1 Vehicle 2 Floor panel 3A, 3B Front cross member 3Aa, 3Ba Top surface 3a, 3b Flange part 4A, 4B Rear cross member 4Aa, 4Ba Top surface 4a, 4b Flange part 6 Vehicle seat 6A Passenger seat side front seat 6B driving Seat side front seat 8A-8D Seat mounting bracket 8Aa-8Da Top surface 8Ab-8Db Front and rear flanges 8Ac-8Dc Left and right flanges 9,9A, 9B Connecting members 10A-10D Reinforcing member 21 Floor tunnel section 21a Top surface 22 Side sill section 80 Integrated seat mounting bracket 80A, 80B Left and right brackets 90 Connecting

Claims (4)

フロアパネルの車両幅方向の中間部に設けられるフロアトンネル部と、
前記フロアパネルの上部に設けられ、車両幅方向において前記フロアトンネル部に連結される左右のクロスメンバと、
左右のシートが取付けられるシートレール組立体を前記左右のクロスメンバに取付けるためのシート取付ブラケットと、を備える車両用シートの取付部構造において、
前記シート取付ブラケットが補強部材を介して前記クロスメンバに取付けられていることを特徴とする車両用シートの取付部構造。 The floor tunnel part provided in the middle part of the floor panel in the vehicle width direction and
Left and right cross members provided on the upper part of the floor panel and connected to the floor tunnel portion in the vehicle width direction, and
In a vehicle seat mounting structure including a seat mounting bracket for mounting the seat rail assembly to which the left and right seats are mounted on the left and right cross members.
Mounting portion structure of a vehicle seat, wherein said seat mounting bracket is kicked attached to the cross member via the reinforcing member. 前記シート取付ブラケットは、
前記フロアトンネル部を挟んで車両内側に位置する左右の内側シート取付ブラケットと、前記左右の内側シート取付ブラケットよりも車両幅方向の外側に位置する左右の外側シート取付ブラケットと、を有し、
前記シート取付ブラケットのうち、前記外側シート取付ブラケットが前記補強部材を介して前記クロスメンバに取付けられていることを特徴とする請求項１に記載の車両用シートの取付部構造。 The seat mounting bracket
It has left and right inner seat mounting brackets located inside the vehicle with the floor tunnel portion in between, and left and right outer seat mounting brackets located outside the vehicle width direction from the left and right inner seat mounting brackets.
Wherein among the seat mounting bracket, the mounting portion structure of a vehicle seat according to claim 1, wherein the outer sheet mounting bracket is characterized in that it is kicked attached to the cross member via the reinforcing member. 前記シート取付ブラケットは、前記補強部材を介して前記クロスメンバの前後面に接合されていることを特徴とする請求項１または２に記載の車両用シートの取付部構造。 The vehicle seat mounting portion structure according to claim 1 or 2 , wherein the seat mounting bracket is joined to the front and rear surfaces of the cross member via the reinforcing member. フロアパネルの車両幅方向の中間部に設けられるフロアトンネル部と、
前記フロアパネルの上部に設けられ、車幅方向において前記フロアトンネル部に連結する左右のクロスメンバと、
左右のシートに取付けられるシートレール組立体を前記左右のクロスメンバに取付けるシート取付ブラケットと、を備える車両用シートの取付部構造において、
前記シート取付ブラケットのうち、前記フロアトンネル部を挟んで車両内側に位置する左右のシート取付ブラケットを連結する連結部材と、
前記フロアトンネル部の内側かつ前記左右のクロスメンバとの間に設けられるブレースと、を備えることを特徴とする車両用シートの取付部構造。 The floor tunnel part provided in the middle part of the floor panel in the vehicle width direction and
Left and right cross members provided on the upper part of the floor panel and connected to the floor tunnel portion in the vehicle width direction, and
A seat mounting bracket for attaching the seat rail assembly attached to right and left seat to the cross member of the right and left, at the attachment part structure of a vehicle seat comprising,
Of the seat mounting brackets, a connecting member that connects the left and right seat mounting brackets located inside the vehicle across the floor tunnel portion, and
A vehicle seat mounting portion structure including a brace provided inside the floor tunnel portion and between the left and right cross members.
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JP5167772B2 (en) * 2007-11-14 2013-03-21 マツダ株式会社 Lower body structure of automobile
JP5577891B2 (en) * 2010-06-30 2014-08-27 マツダ株式会社 Lower body structure of the vehicle
JP5862214B2 (en) * 2011-11-10 2016-02-16 スズキ株式会社 Mounting structure for vehicle seat

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