JP2012111363A - Installation structure of vehicle seat - Google Patents

Installation structure of vehicle seat Download PDF

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JP2012111363A
JP2012111363A JP2010262225A JP2010262225A JP2012111363A JP 2012111363 A JP2012111363 A JP 2012111363A JP 2010262225 A JP2010262225 A JP 2010262225A JP 2010262225 A JP2010262225 A JP 2010262225A JP 2012111363 A JP2012111363 A JP 2012111363A
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Prior art keywords
reinforcing member
floor tunnel
rear direction
seat mounting
vehicle
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JP2010262225A
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JP5673018B2 (en
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Koichi Yamamoto
幸一 山本
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Suzuki Motor Corp
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Suzuki Motor Corp
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Priority to JP2010262225A priority Critical patent/JP5673018B2/en
Priority to DE102011119072.8A priority patent/DE102011119072B4/en
Priority to CN201110382593.9A priority patent/CN102476657B/en
Publication of JP2012111363A publication Critical patent/JP2012111363A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/20—Floors or bottom sub-units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/005—Arrangement or mounting of seats in vehicles, e.g. dismountable auxiliary seats
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/005—Arrangement or mounting of seats in vehicles, e.g. dismountable auxiliary seats
    • B60N2/015—Attaching seats directly to vehicle chassis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/06—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Body Structure For Vehicles (AREA)
  • Seats For Vehicles (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide an installation structure of a vehicle seat capable of improving rigidity around an installation portion, preventing paint quality of a painted surface from being reduced, and improving the production efficiency of the vehicle.SOLUTION: This installation structure includes: a reinforcing member 5 overlapping along an upper part 3b and an upper side part 3c of a floor tunnel, and a bracket 6 for seat installation arranged at both ends in a vehicle width direction of an upper part 5a of the reinforcing member 5. An upper part of the center portion in the longitudinal direction of the bracket 6 is formed to protrude from the upper part 5a of the reinforcing member 5 to the outside in the vehicle width direction. A side part of the center portion is formed to extend toward the outside in the vehicle width direction as going from the upper part of the center part to downward. An opening 10c is provided at a lower end of the side part of the center portion. An upper part 10a of the both ends in the longitudinal direction of the bracket 6 is formed along the upper part 5a of the reinforcing member 5. Side parts of the both ends are formed to extend to the outside in the vehicle width direction along a side part 5b of the reinforcing member 5 and a lower side part 3d of the floor tunnel 3, and from the upper part of the both ends to downward. The both ends of the bracket 6 are joined to the lower side part 3d of the floor tunnel 3 and the reinforcing member 5.

Description

本発明は、車両フロアに設けられるフロアトンネルの補強部材にシート取付ブラケットを配置した車両用シートの取付構造に関する。   The present invention relates to a vehicle seat mounting structure in which a seat mounting bracket is arranged on a reinforcing member of a floor tunnel provided on a vehicle floor.

小型車両においては、車幅を狭くする一方で車室内の居住空間を確保することが要求されている。また、車室内ではシートが車幅方向左右一対のレール上に配置されており、これら一対のレールの車幅方向の距離を長くすることによって、シートの取付安定性を高めることが要求されている。さらに、シートには特に車両前方側斜め上方に向かう力が大きく加えられるので、このような力に対してシート取付部及びその周辺の取付剛性を高めることが要求されている。   In a small vehicle, it is required to secure a living space in the passenger compartment while reducing the vehicle width. In addition, the seat is disposed on a pair of left and right rails in the vehicle width direction in the vehicle interior, and it is required to increase seat mounting stability by increasing the distance in the vehicle width direction of the pair of rails. . Furthermore, since a large force is applied to the seat, particularly in the obliquely upward direction on the front side of the vehicle, it is required to increase the mounting rigidity of the seat mounting portion and its periphery against such a force.

これらの要求に応ずるために、車幅方向中央側のレールの取付部を、車両フロアの車幅方向に位置するフロアトンネルに設けることが行なわれている。この構造では、車幅を広げず、かつ車室内の居住空間を犠牲にせずに、一対のレール同士の距離を長くすることができる。そのため、車幅を狭くする一方で車室内の居住空間を確保でき、かつシートの取付安定性を高めることができる。また、レールの取付部が、剛性の高いフロアトンネルに設けられているので、シートの取付部及びその周辺の剛性を高めることができる。   In order to meet these requirements, a rail mounting portion at the center in the vehicle width direction is provided in a floor tunnel located in the vehicle width direction of the vehicle floor. In this structure, the distance between the pair of rails can be increased without increasing the vehicle width and without sacrificing the living space in the vehicle interior. Therefore, while narrowing the vehicle width, it is possible to secure a living space in the vehicle interior and improve the seat mounting stability. In addition, since the rail attachment portion is provided in the floor tunnel having high rigidity, the rigidity of the seat attachment portion and its periphery can be increased.

このような構造の一例として、特許文献１では、フロアトンネルが断面ハット形状に形成され、車幅方向中央側のレールを取付ける２つのレール取付ブラケットが、断面Ｌ字形状又は断面ハット形状に形成されており、車両前後方向に間隔を空けて配置され、かつフロアトンネルの上部又は側部に取付けられている。
さらなる一例として、特許文献２では、フロアトンネルが断面ハット形状に形成され、このフロアトンネルに対応して断面ハット形状に形成された補強部材がフロアトンネルの上方から重ねて配置されている。この補強部材にシート取付ブラケットが取付けられており、このシート取付ブラケットの上部が補強部材の上部に沿って配置され、シート取付ブラケットの側部が補強部材の側部に沿って配置されている。シート取付ブラケットの側部は、フロアトンネルの側部と一緒に閉空間を形成するように車幅方向外側に突出し、かつ車幅方向中央側のレールを取付けるように構成されている。 As an example of such a structure, in Patent Document 1, a floor tunnel is formed in a cross-sectional hat shape, and two rail mounting brackets for mounting a rail on the center side in the vehicle width direction are formed in a cross-sectional L shape or a cross-sectional hat shape. It is arranged at intervals in the vehicle front-rear direction and is attached to the upper part or side part of the floor tunnel.
As a further example, in Patent Document 2, a floor tunnel is formed in a cross-sectional hat shape, and a reinforcing member formed in a cross-sectional hat shape corresponding to the floor tunnel is arranged so as to overlap from above the floor tunnel. A seat mounting bracket is attached to the reinforcing member, an upper portion of the seat mounting bracket is disposed along the upper portion of the reinforcing member, and a side portion of the seat mounting bracket is disposed along a side portion of the reinforcing member. The side portion of the seat mounting bracket projects outward in the vehicle width direction so as to form a closed space together with the side portion of the floor tunnel, and is configured to attach a rail on the center side in the vehicle width direction.

特開２００１−３４１５６７号公報JP 2001-341567 A 特開平７−１６５１２５号公報JP 7-165125 A

しかしながら、特許文献１の構造では、断面Ｌ字形状又は断面ハット形状の２つのレール取付ブラケットが、車両前後方向に間隔を空けてフロアトンネルに取付けられているに過ぎない。そのため、シートに加わる車両前方側斜め上方に向かう力に対して、レールの取付強度が十分でなく、シートの取付部及びその周辺の剛性を高めることができない。   However, in the structure of Patent Document 1, the two rail mounting brackets having an L-shaped cross section or a hat-shaped cross section are merely attached to the floor tunnel with a space in the vehicle front-rear direction. Therefore, the mounting strength of the rail is not sufficient with respect to the force applied to the seat obliquely upward on the front side of the vehicle, and the rigidity of the seat mounting portion and its periphery cannot be increased.

そこで、特許文献２の構造を採用することが考えられる。しかしながら、特許文献２の構造にて、シート取付ブラケットを補強部材に取付けた状態でこの組立体を電着塗装する場合、シート取付ブラケットの側部とフロアトンネルの側部とにより形成された閉空間に、電着塗装液が残留する。この残留した液体を電着塗装工程中に取り除くことは難しく、電着塗装工程の後工程にて、閉空間内に残留した液体が補強部材の塗装面に垂れる「液ダレ」が発生するおそれがある。この場合、補強部材の塗装面の塗装品質が低下することとなる。   Therefore, it is conceivable to adopt the structure of Patent Document 2. However, in the structure of Patent Document 2, when this assembly is electrodeposition coated with the seat mounting bracket attached to the reinforcing member, a closed space formed by the side portion of the seat mounting bracket and the side portion of the floor tunnel In addition, the electrodeposition coating liquid remains. It is difficult to remove the remaining liquid during the electrodeposition coating process, and there is a risk that “liquid dripping” may occur in the closed space after the electrodeposition coating process. is there. In this case, the coating quality of the painted surface of the reinforcing member is deteriorated.

特許文献２の構造では、シート取付ブラケットの側部が車幅方向外側に突出しており、このようなシート取付ブラケットの側部と補強部材の側部とによって閉空間が形成されているので、シート取付ブラケットと補強部材とを予め組み立てた状態で、このような仕掛かり中の組立体同士を重ねて輸送することができない。そのため、車両の生産中に、このような組立体の輸送効率が悪くなっており、車両の生産効率が低下する要因となっている。   In the structure of Patent Document 2, the side portion of the seat mounting bracket protrudes outward in the vehicle width direction, and a closed space is formed by the side portion of the seat mounting bracket and the side portion of the reinforcing member. In a state where the mounting bracket and the reinforcing member are assembled in advance, such an assembly in progress cannot be transported in layers. Therefore, during the production of the vehicle, the transport efficiency of such an assembly is deteriorated, which is a factor of reducing the production efficiency of the vehicle.

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、車幅を狭くする一方で車室内の居住空間を確保し、かつシートの取付安定性を高めながら、シートの取付部及びその周辺の剛性を高め、塗装面の塗装品質低下を防止し、かつ車両の生産効率を高めることのできる車両用シートの取付構造を提供することにある。   The present invention has been made in view of such a situation, and an object of the present invention is to secure the seat space while reducing the vehicle width while increasing the seat mounting stability. An object of the present invention is to provide a mounting structure for a vehicle seat that can increase the rigidity of the portion and its surroundings, prevent the coating quality from being deteriorated on the painted surface, and increase the production efficiency of the vehicle.

課題を解決するために、車両用シートの取付構造は、車両フロアのフロアトンネルの上部及び上側側部に沿って断面コ字形状に形成され、かつ前記フロアトンネルに上方から重ねて配置される補強部材と、前記補強部材の上部の車幅方向両端部に配置されるシート取付ブラケットとを備えている車両用シートの取付構造であって、前記シート取付ブラケットの前後方向中央部分の上部が前記補強部材の上部から車幅方向外側に突出して形成され、前記前後方向中央部分の側部が前記前後方向中央部分の上部から下方に向かうに従って前記前後方向中央部分の上部に対して車幅方向外側に広がって形成され、前記前後方向中央部分の側部下端には開口部が設けられ、前記シート取付ブラケットの前後方向両端部分の上部が前記補強部材の上部に沿って形成され、前記前後方向両端部分の側部が、前記補強部材の側部及び前記フロアトンネルの下側側部に沿うとともに、前記前後方向両端部分の上部から下方に向かうに従って前記前後方向両端部分の上部に対して車幅方向外側に広がって形成され、前記シート取付ブラケットの前後方向端部分が、前記補強部材と、前記フロアトンネルの下側側部とに接合されている。   In order to solve the problem, a vehicle seat mounting structure is formed in a U-shaped cross section along an upper side and an upper side of a floor tunnel of a vehicle floor, and is reinforced by overlapping the floor tunnel from above. A vehicle seat mounting structure comprising a member and seat mounting brackets disposed at both ends in the vehicle width direction of the upper portion of the reinforcing member, wherein the upper portion of the seat mounting bracket in the front-rear direction central portion is the reinforcing member It protrudes outward in the vehicle width direction from the upper part of the member, and the side part of the front-rear direction central part is outward in the vehicle width direction with respect to the upper part of the front-rear direction central part as it goes downward from the upper part of the front-rear direction central part An opening is formed at the lower end of the side portion of the central portion in the front-rear direction, and the upper portions of both end portions in the front-rear direction of the seat mounting bracket are located at the upper portion of the reinforcing member. The side portions of the front and rear direction both end portions are along the side portions of the reinforcing member and the lower side portion of the floor tunnel, and the front and rear direction both ends as they go downward from the upper portion of the front and rear direction both end portions. The seat mounting bracket is formed so as to extend outward in the vehicle width direction with respect to the upper portion of the portion, and the front-rear direction end portion of the seat mounting bracket is joined to the reinforcing member and the lower side portion of the floor tunnel.

本発明の車両用シートの取付構造では、前記シート取付ブラケットの前後方向中央部分の上部に取付孔が設けられ、前記取付孔が、前記シート取付ブラケットの前後方向端部分の側部と前記フロアトンネルの下側側部とを接合した一対の接合部の間に配置されている。   In the vehicle seat mounting structure according to the present invention, a mounting hole is provided in an upper portion of a center portion in the front-rear direction of the seat mounting bracket, and the mounting hole includes a side portion of the end portion in the front-rear direction and the floor tunnel. It arrange | positions between a pair of junction parts which joined the lower side part.

本発明の車両用シートの取付構造では、前記シート取付ブラケットの開口部の端面が、前記フロアトンネルの下側側部の表面に対して直交して配置されている。   In the vehicle seat mounting structure of the present invention, the end surface of the opening of the seat mounting bracket is disposed orthogonal to the surface of the lower side portion of the floor tunnel.

本発明の車両用シートの取付構造では、前記フロアトンネルの内部に内部補強部材が設けられ、前記内部補強部材には、前記シート取付ブラケットの前後方向端部分の側部と、フロアトンネルの下側側部とに重なるように形成された取付部が設けられ、前記シート取付ブラケットの前後方向端部分の側部と、前記フロアトンネルの下側側部と、内部補強部材の取付部とが重ね接合されている。   In the vehicle seat mounting structure of the present invention, an internal reinforcing member is provided inside the floor tunnel, and the internal reinforcing member includes a side portion of the seat mounting bracket in a front-rear direction end portion and a lower side of the floor tunnel. A mounting portion formed so as to overlap with the side portion is provided, and the side portion of the seat mounting bracket in the front-rear direction end portion, the lower side portion of the floor tunnel, and the mounting portion of the internal reinforcing member are overlap-joined Has been.

本発明によれば、以下の効果を得ることができる。
本発明の車両用シートの取付構造は、車両フロアのフロアトンネルの上部及び上側側部に沿って断面コ字形状に形成され、かつ前記フロアトンネルに上方から重ねて配置される補強部材と、前記補強部材の上部の車幅方向両端部に配置されるシート取付ブラケットとを備えている車両用シートの取付構造であって、前記シート取付ブラケットの前後方向中央部分の上部が前記補強部材の上部から車幅方向外側に突出して形成され、前記前後方向中央部分の側部が前記前後方向中央部分の上部から下方に向かうに従って前記前後方向中央部分の上部に対して車幅方向外側に広がって形成され、前記前後方向中央部分の側部下端には開口部が設けられ、前記シート取付ブラケットの前後方向両端部分の上部が前記補強部材の上部に沿って形成され、前記前後方向両端部分の側部が、前記補強部材の側部及び前記フロアトンネルの下側側部に沿うとともに、前記前後方向両端部分の上部から下方に向かうに従って前記前後方向両端部分の上部に対して車幅方向外側に広がって形成され、前記シート取付ブラケットの前後方向端部分が、前記補強部材と、前記フロアトンネルの下側側部とに接合されている。
そのため、前記シート取付ブラケットの前後方向端部分の側部が、前記前後方向端部分の上部から下方に向かうに従って前記前後方向端部分の上部に対して車幅方向外側に広がって形成されて、前記フロアトンネルの下側側部に接合されているので、前記シート取付ブラケットと前記フロアトンネルとの間における車両上下方向の接合強度が高まることとなる。従って、シートに対して車両前側斜め上方に向かう力が加えられた場合に、このような力に対するシートの取付強度を高め、かつ前記シート取付ブラケット周辺の剛性を高めることができる。
また、前記補強部材と前記シート取付ブラケットとを組み立てた状態で、当該組立体を電着塗装した場合に、電着塗装液は、組立体内に残留せずに前記開口部から流れることとなる。そのため、電着塗装工程の後工程にて、組立体内に残留した電着塗装液によって前記補強部材の塗装面に液ダレが発生することを防止でき、塗装面の塗装品質低下を防止できる。
さらに、前記シート取付ブラケットの前後方向中央部分の上部が前記補強部材の上部から車幅方向外側に突出して形成され、前記前後方向中央部分の側部が、前記前後方向中央部分の上部から下方に向かうに従って前記前後方向中央部分の上部に対して車幅方向外側に広がって形成され、前記シート取付ブラケットの前後方向両端部分の側部が前記補強部材の側部及び前記フロアトンネルの下側側部に沿って前記前後方向両端部分の上部から下方に向かうに従って前記前後方向両端部分の上部に対して車幅方向に広がって形成されているので、前記補強部材と前記シート取付ブラケットとを組み立てた状態で、当該組立体同士を重ねて輸送することができる。そのため、車両の生産中に、このような組立体の輸送効率を高めて、車両の生産効率を高めることができる。
よって、シートの取付構造を前記フロアトンネルに設けることによって車幅を狭くする一方で車室内の居住空間を確保し、かつシートの取付安定性を高めながら、シート取付部及びその周辺の剛性を高め、塗装面の塗装品質低下を防止し、かつ車両の生産効率を高めることができる。 According to the present invention, the following effects can be obtained.
A mounting structure for a vehicle seat according to the present invention is formed in a U-shaped cross section along an upper side and an upper side of a floor tunnel of a vehicle floor, and the reinforcing member is disposed to overlap the floor tunnel from above, A vehicle seat mounting structure comprising seat mounting brackets disposed at both ends in the vehicle width direction of the upper portion of the reinforcing member, wherein the upper portion of the center portion in the front-rear direction of the seat mounting bracket extends from the upper portion of the reinforcing member It is formed so as to protrude outward in the vehicle width direction, and the side portion of the center portion in the front-rear direction is formed to spread outward in the vehicle width direction with respect to the upper portion of the center portion in the front-rear direction as it goes downward from the upper portion of the center portion in the front-rear direction. In addition, an opening is provided at the lower end of the side portion of the central portion in the front-rear direction, and upper portions of both end portions in the front-rear direction of the seat mounting bracket are formed along the upper portion of the reinforcing member. Sides of the both ends in the front-rear direction are along the side of the reinforcing member and the lower side of the floor tunnel, and with respect to the upper parts of the both ends in the front-rear direction as they go downward from the upper part of the both ends in the front-rear direction. The front and rear direction end portions of the seat mounting bracket are joined to the reinforcing member and the lower side portion of the floor tunnel.
Therefore, the side part of the front-rear direction end portion of the seat mounting bracket is formed to extend outward in the vehicle width direction with respect to the upper portion of the front-rear direction end portion as it goes downward from the upper portion of the front-rear direction end portion, Since it is joined to the lower side portion of the floor tunnel, the joining strength in the vehicle vertical direction between the seat mounting bracket and the floor tunnel is increased. Therefore, when a force directed obliquely upward on the front side of the vehicle is applied to the seat, the seat mounting strength against such force can be increased, and the rigidity around the seat mounting bracket can be increased.
In addition, when the assembly is electrodeposited in a state where the reinforcing member and the seat mounting bracket are assembled, the electrodeposition coating liquid flows from the opening without remaining in the assembly. Therefore, it is possible to prevent the dripping of the painted surface of the reinforcing member due to the electrodeposition coating liquid remaining in the assembly in the subsequent process of the electrodeposition coating process, and it is possible to prevent the coating quality of the painted surface from being deteriorated.
Furthermore, the upper part of the front-rear direction center part of the seat mounting bracket is formed to protrude outward in the vehicle width direction from the upper part of the reinforcing member, and the side part of the front-rear direction center part extends downward from the upper part of the front-rear direction center part. The side portions of both ends of the seat mounting bracket in the front-rear direction are formed to extend outward in the vehicle width direction with respect to the upper portion of the center portion in the front-rear direction as it goes, and the side portions of the reinforcing member and the lower side portion of the floor tunnel In the state where the reinforcing member and the seat mounting bracket are assembled together, it is formed so as to extend in the vehicle width direction with respect to the upper part of the both ends in the front-rear direction as it goes downward from the upper part of the both ends in the front-rear direction along Thus, the assemblies can be transported in a stacked manner. Therefore, during the production of the vehicle, it is possible to increase the transportation efficiency of such an assembly and increase the production efficiency of the vehicle.
Therefore, by providing the seat mounting structure in the floor tunnel, the vehicle width is narrowed while the living space in the passenger compartment is secured and the seat mounting stability is enhanced while the rigidity of the seat mounting portion and its surroundings is increased. It is possible to prevent the quality of the painted surface from being deteriorated and to increase the production efficiency of the vehicle.

本発明の車両用シートの取付構造では、前記シート取付ブラケットの前後方向中央部分の上部に取付孔が設けられ、前記取付孔が、前記シート取付ブラケットの前後方向端部分の側部と前記フロアトンネルの下側側部とを接合した一対の接合部の間に配置されているので、前記取付孔によって前記シート取付ブラケットに取付けられたシートに対して車両前側斜め上方に向かう力が加えられた場合に、前記シート取付ブラケットに伝えられた力が、車両上下方向の接合強度が高められた前記シート取付ブラケットと前記フロアトンネルとの接合部によって、確実に前記フロアトンネルに分散されることとなる。よって、シート取付部及びその周辺の剛性を高めることができる。   In the vehicle seat mounting structure according to the present invention, a mounting hole is provided in an upper portion of a center portion in the front-rear direction of the seat mounting bracket, and the mounting hole includes a side portion of the end portion in the front-rear direction and the floor tunnel. When a force directed diagonally upward on the front side of the vehicle is applied to the seat attached to the seat mounting bracket through the attachment hole, because the seat is disposed between the pair of joint portions joined to the lower side portion of the vehicle. In addition, the force transmitted to the seat mounting bracket is surely distributed to the floor tunnel by the joint portion between the seat mounting bracket and the floor tunnel whose joint strength in the vehicle vertical direction is increased. Therefore, the rigidity of the seat mounting portion and its periphery can be increased.

本発明の車両用シートの取付構造では、前記シート取付ブラケットの開口部の端面が、前記フロアトンネルの下側側部の表面に対して直交して配置されているので、前記シート取付ブラケットに加わる荷重を確実に分散させることができる。また、前記シート取付ブラケットの成形深さを浅くできるので、前記シート取付ブラケットの成形性を高めることができる。その結果、前記シート取付ブラケット及び車両の生産効率を高め、ひいては前記シート取付ブラケット及び車両の生産コストを低減できる。よって、シート取付部及びその周辺の剛性を高め、かつ車両の生産効率を高めることができる。   In the vehicle seat mounting structure according to the present invention, the end surface of the opening of the seat mounting bracket is arranged orthogonal to the surface of the lower side portion of the floor tunnel, so that it is added to the seat mounting bracket. The load can be reliably dispersed. Further, since the molding depth of the seat mounting bracket can be reduced, the moldability of the seat mounting bracket can be improved. As a result, the production efficiency of the seat mounting bracket and the vehicle can be increased, and consequently the production cost of the seat mounting bracket and the vehicle can be reduced. Therefore, it is possible to increase the rigidity of the seat mounting portion and its surroundings and increase the production efficiency of the vehicle.

本発明の車両用シートの取付構造では、前記フロアトンネルの内部に内部補強部材が設けられ、前記内部補強部材には、前記シート取付ブラケットの前後方向端部分の側部と、フロアトンネルの下側側部とに重なるように形成された取付部が設けられ、前記シート取付ブラケットの前後方向端部分の側部と、前記フロアトンネルの下側側部と、内部補強部材の取付部とが重ね接合されているので、前記シート取付ブラケットが、前記フロアトンネル及び前記内部補強部材に強固に取付けられることとなる。よって、シート取付部及びその周辺の剛性を高めることができる。   In the vehicle seat mounting structure of the present invention, an internal reinforcing member is provided inside the floor tunnel, and the internal reinforcing member includes a side portion of the seat mounting bracket in a front-rear direction end portion and a lower side of the floor tunnel. A mounting portion formed so as to overlap with the side portion is provided, and the side portion of the seat mounting bracket in the front-rear direction end portion, the lower side portion of the floor tunnel, and the mounting portion of the internal reinforcing member are overlap-joined Thus, the seat mounting bracket is firmly attached to the floor tunnel and the internal reinforcing member. Therefore, the rigidity of the seat mounting portion and its periphery can be increased.

本発明の実施形態に係る車両用シートの取付構造を有する車体を示す概略斜視図である。It is a schematic perspective view which shows the vehicle body which has the attachment structure of the vehicle seat which concerns on embodiment of this invention. 本発明の実施形態にて、レール付きのシートをフロア側に設けられたシート取付ブラケットから分解した状態で、車両用シートの取付構造を示す概略分解斜視図である。In embodiment of this invention, it is a schematic exploded perspective view which shows the attachment structure of a vehicle seat in the state which decomposed | disassembled the sheet | seat with a rail from the seat attachment bracket provided in the floor side. 本発明の実施形態に係る車両用シートの取付構造を有するフロア周りの構造を示す概略斜視図である。It is a schematic perspective view which shows the structure around the floor which has the attachment structure of the vehicle seat which concerns on embodiment of this invention. 図３のフロア周りの構造をＡ−Ａ線に沿って切断した状態で見た断面正面図である。It is the cross-sectional front view seen in the state which cut | disconnected the structure around the floor of FIG. 3 along the AA line. 図３のフロア周りの構造をＡ−Ａ線に沿って切断した状態で見た断面斜視図である。It is the cross-sectional perspective view which looked at the state around the floor of FIG. 3 in the state cut | disconnected along the AA line. 本発明の実施形態に係るシート取付ブラケット周辺を示す概略斜視図である。It is a schematic perspective view which shows the seat mounting bracket periphery which concerns on embodiment of this invention. 本発明の実施形態に係るシート取付ブラケット周辺を示す概略上面図である。It is a schematic top view which shows the seat mounting bracket periphery which concerns on embodiment of this invention. 本発明の実施形態にて、フロアトンネルの補強部材とシート取付ブラケットとの組立体同士を重ねた状態の断面示す概略断面正面図である。In embodiment of this invention, it is a schematic sectional front view which shows the cross section of the state which piled up the assembly of the reinforcement member of a floor tunnel, and the seat mounting bracket.

本発明の実施形態に係る車両用シートの取付構造について説明する。
図１及び図２に示すように、車体１に、車室内の床部分を構成するフロア組立体２が配置されている。フロア組立体２には、その車幅方向中央部分に車両前後方向に延びるフロアトンネル３が設けられており、フロアトンネル３の車幅方向両側にはフロアパネル４が設けられている。フロアトンネル３には補強部材５が上方から重ねて配置されている。補強部材の上面の車幅方向両端部にはシート取付ブラケット（以下、「ブラケット」という）６が配置されている。補強部材５の前方には、車幅方向に延びるフロアクロスメンバ７が配置されている。ここで、図４及び図５を参照すると、フロアトンネル３の内部には、内部補強部材８が配置されている。再び図１に示すように、車体１の車室内には、車両進行方向右側のシート９が配置されている。なお、本実施形態は、シート９以外のシートを省略して説明する。 A vehicle seat mounting structure according to an embodiment of the present invention will be described.
As shown in FIGS. 1 and 2, a floor assembly 2 that constitutes a floor portion in a passenger compartment is disposed in a vehicle body 1. The floor assembly 2 is provided with a floor tunnel 3 extending in the vehicle front-rear direction at a center portion in the vehicle width direction, and floor panels 4 are provided on both sides of the floor tunnel 3 in the vehicle width direction. A reinforcing member 5 is disposed on the floor tunnel 3 so as to overlap from above. Seat mounting brackets (hereinafter referred to as “brackets”) 6 are disposed at both ends in the vehicle width direction on the upper surface of the reinforcing member. A floor cross member 7 extending in the vehicle width direction is disposed in front of the reinforcing member 5. Here, referring to FIGS. 4 and 5, an internal reinforcing member 8 is disposed inside the floor tunnel 3. As shown in FIG. 1 again, a seat 9 on the right side in the vehicle traveling direction is disposed in the vehicle interior of the vehicle body 1. In the present embodiment, a sheet other than the sheet 9 is omitted.

図３〜図５を参照して、フロア組立体２について説明する。
フロアトンネル３の断面は略ハット形状に形成されている。フロアトンネル３のフランジ形状の下部３ａは、フロアパネル４の車幅方向中央側の端部に取付けられている。 The floor assembly 2 will be described with reference to FIGS.
The cross section of the floor tunnel 3 is formed in a substantially hat shape. The flange-shaped lower part 3 a of the floor tunnel 3 is attached to the end of the floor panel 4 on the center side in the vehicle width direction.

図３〜図５を参照して、補強部材５について説明する。
図３に示すように、補強部材５の前端はフロアクロスメンバ７に隣接して配置されている。図４及び図５に示すように、補強部材５の断面は略コ字形状に形成されている。補強部材５の上部５ａはフロアトンネル３の上部３ｂに沿って形成されている。図３に示すように、補強部材５の側部５ｂはフロアトンネル３の上側側部３ｃに沿って形成されているが、図４及び図５に示すように、補強部材５の側部５ｂはブラケット６を取付ける部分では、取付ブラケット６に対応して突出して形成されている。このような補強部材５が、フロアトンネル３に上方から重ねて配置されて、フロアトンネル３に取付けられている。 The reinforcing member 5 will be described with reference to FIGS.
As shown in FIG. 3, the front end of the reinforcing member 5 is disposed adjacent to the floor cross member 7. As shown in FIGS. 4 and 5, the reinforcing member 5 has a substantially U-shaped cross section. The upper part 5 a of the reinforcing member 5 is formed along the upper part 3 b of the floor tunnel 3. As shown in FIG. 3, the side part 5b of the reinforcing member 5 is formed along the upper side part 3c of the floor tunnel 3, but as shown in FIGS. 4 and 5, the side part 5b of the reinforcing member 5 is At the portion where the bracket 6 is attached, it is formed so as to protrude corresponding to the mounting bracket 6. Such a reinforcing member 5 is disposed on the floor tunnel 3 so as to overlap the floor tunnel 3 and is attached to the floor tunnel 3.

図４〜図７を参照して、ブラケット６について説明する。
図４〜図７に示すように、ブラケット６の前後方向中央部分（以下、「中央部分」という）１０の上部１０ａは、補強部材５の上部５ａに沿って形成され、かつ補強部材５の上部５ａから車幅方向外側に突出して形成されている。中央部分１０の側部１０ｂの断面は略コ字形状に形成されており、当該側部１０ｂは、中央部分１０の上部１０ａの車幅方向外側端から下方に向かうに従って、中央部分１０の上部１０ａに対して車幅方向外側に広がって形成されている。中央部分１０の側部１０ｂ下端には開口部１０ｃが形成されている。特に図４に示すように、この開口部１０ｃの端面はフロアトンネル３の下側側部３ｄの表面に対して略直交して配置されている。 The bracket 6 will be described with reference to FIGS.
As shown in FIGS. 4 to 7, an upper portion 10 a of the bracket 6 in the front-rear direction center portion (hereinafter referred to as “center portion”) 10 is formed along the upper portion 5 a of the reinforcing member 5 and the upper portion of the reinforcing member 5. It projects from 5a to the outside in the vehicle width direction. The cross section of the side portion 10b of the central portion 10 is formed in a substantially U-shape, and the side portion 10b extends upward from the outer end in the vehicle width direction of the upper portion 10a of the central portion 10 toward the upper portion 10a of the central portion 10. In contrast, it is formed to extend outward in the vehicle width direction. An opening 10 c is formed at the lower end of the side portion 10 b of the central portion 10. In particular, as shown in FIG. 4, the end surface of the opening 10 c is disposed substantially orthogonal to the surface of the lower side portion 3 d of the floor tunnel 3.

図５〜図７に示すように、ブラケット６の前後方向両端部分（以下、「両端部分」という）１１の上部１１ａは、補強部材５の上部５ａに沿って形成されている。両端部分１１の側部１１ｂは、それぞれ補強部材５の側部５ｂと、フロアトンネル３の下側側部３ｄとに沿って形成されており、それぞれ両端部分１１の上部１１ａから下方に向かうに従って、両端部分１１の上部１１ａに対して車幅方向外側に広がって形成されている。このようなブラケット６の両端部分１１の上部１１ａが、それぞれ補強部材５の上部５ａに重ねて配置され、それぞれ接合部１２ａによって補強部材５の上部５ａに接合されている。前側の端部分１１の側部１１ｂが、フロアトンネル３の下側側部３ｄと、後述する内部補強部材８の取付部８ａとに重ねて配置されて、上下方向に間隔を空けて配置される２つの接合部１２ｂ，１２ｃによって、フロアトンネル３の下側側部３ｄと内部補強部材８の取付部８ａとに重ね接合されている。後側の端部分１１の側部１１ｂが、フロアトンネル３の下側側部３ｄに重ねて配置されて、上下方向に間隔を空けて配置される２つの接合部１２ｄ，１２ｅによって、フロアトンネル３の下側側部３ｄに重ね接合されている。   As shown in FIGS. 5 to 7, the upper part 11 a of the bracket 6 at both ends in the front-rear direction (hereinafter referred to as “both end parts”) 11 is formed along the upper part 5 a of the reinforcing member 5. The side portions 11b of the both end portions 11 are formed along the side portions 5b of the reinforcing member 5 and the lower side portion 3d of the floor tunnel 3, respectively, and downward from the upper portions 11a of the both end portions 11, respectively. It is formed so as to spread outward in the vehicle width direction with respect to the upper portion 11 a of the both end portions 11. The upper portions 11a of both end portions 11 of the bracket 6 are arranged so as to overlap the upper portions 5a of the reinforcing members 5, and are joined to the upper portions 5a of the reinforcing members 5 by the joining portions 12a. A side portion 11b of the front end portion 11 is disposed so as to overlap a lower side portion 3d of the floor tunnel 3 and a mounting portion 8a of an internal reinforcing member 8 described later, and is disposed with an interval in the vertical direction. The two joint portions 12b and 12c are overlapped and joined to the lower side portion 3d of the floor tunnel 3 and the attachment portion 8a of the internal reinforcing member 8. The side portion 11b of the rear end portion 11 is arranged so as to overlap the lower side portion 3d of the floor tunnel 3 and is formed by two joint portions 12d and 12e arranged at intervals in the vertical direction. It is overlapped and joined to the lower side portion 3d.

図７に示すように、ブラケット６の中央部分１０には、シート９（図１参照）の取付に用いられる２つの取付孔１３が前後方向に間隔を空けて配置されている。２つの取付孔１３それぞれの前後方向の位置は、前側の端部分１１の側部１１ｂ及びフロアトンネル３の下側側部３ｄの接合部１２ｂ，１２ｃと、後側の端部分１１の側部１１ｂ及びフロアトンネル３の下側側部３ｄの接合部１２ｄ，１２ｅとの間となっている。２つの取付孔１３それぞれの車幅方向の位置は、上面視で、上方側の接合部１２ｂ，１２ｄと下方側の接合部１２ｃ，１２ｅとの間となっている。   As shown in FIG. 7, in the central portion 10 of the bracket 6, two mounting holes 13 used for mounting the seat 9 (see FIG. 1) are arranged with an interval in the front-rear direction. The positions of the two mounting holes 13 in the front-rear direction are the side portion 11b of the front end portion 11 and the joint portions 12b and 12c of the lower side portion 3d of the floor tunnel 3, and the side portion 11b of the rear end portion 11. And between the joints 12d and 12e of the lower side 3d of the floor tunnel 3. The position of each of the two mounting holes 13 in the vehicle width direction is between the upper joint portions 12b and 12d and the lower joint portions 12c and 12e in a top view.

図４及び図５を参照して、内部補強部材８について説明する。
図４及び図５に示すように、内部補強部材８の断面は略コ字形状に形成されている。内部補強部材８は、フロアトンネル３の内部の面に沿うとともに車幅方向に延びて、フロアトンネル３と一緒に閉空間を形成している。特に図５を参照すると、内部補強部材８の外周縁にはフランジ形状の取付部８ａが設けられており、この取付部８ａの一部が、フロアトンネル３の下側側部３ｄとブラケット６における前側の端部分１１の側部１１ｂとに対応して形成されている。 The internal reinforcing member 8 will be described with reference to FIGS. 4 and 5.
As shown in FIG.4 and FIG.5, the cross section of the internal reinforcement member 8 is formed in the substantially U shape. The internal reinforcing member 8 extends along the inner surface of the floor tunnel 3 and extends in the vehicle width direction, and forms a closed space together with the floor tunnel 3. Referring particularly to FIG. 5, a flange-shaped attachment portion 8 a is provided on the outer peripheral edge of the internal reinforcing member 8, and a part of the attachment portion 8 a is provided on the lower side portion 3 d of the floor tunnel 3 and the bracket 6. It is formed corresponding to the side portion 11 b of the front end portion 11.

再び図２を参照して、シート９について説明する。
図２に示すように、シート９は、前後方向に延びる車幅方向左右一対のレール１４，１５に取付けられており、前後方向にスライド可能に構成されている。一対のレール１４，１５における車幅方向中央側のレール１４は、ブラケット６とフロアクロスメンバ７との間に懸架されている。このレール１４の前端部１４ａは、フロアクロスメンバ７上に位置しており、フロアクロスメンバ７に取付けられている。レール１４の後端部１４ｂは、ブラケット６上に位置しており、レール取付孔１３を用いてブラケット６に取付けられている。また、シート９の座部９ａにおける前後方向の奥行は、レール１４の長さに対応している。 With reference to FIG. 2 again, the sheet 9 will be described.
As shown in FIG. 2, the seat 9 is attached to a pair of rails 14 and 15 in the vehicle width direction extending in the front-rear direction, and is configured to be slidable in the front-rear direction. The rail 14 on the center side in the vehicle width direction of the pair of rails 14 and 15 is suspended between the bracket 6 and the floor cross member 7. The front end portion 14 a of the rail 14 is located on the floor cross member 7 and is attached to the floor cross member 7. The rear end portion 14 b of the rail 14 is located on the bracket 6 and is attached to the bracket 6 using the rail attachment hole 13. The depth in the front-rear direction of the seat 9 a of the seat 9 corresponds to the length of the rail 14.

ここで、図８を参照して、補強部材５とブラケット６との組立体同士を重ねて使用する態様について説明する。
図８にて、補強部材５とブラケット６との組立体（以下、「組立体」という）は、上下方向に重ねられた状態で示されている。このような状態にて、下方側の組立体が、上方側の組立体における左右一対のブラケット６の間に挿入されている。また、上方側の組立体における補強部材５の側部５ｂの下端が、下方側の組立体におけるブラケット６の中央部分１０の上部１０ａに当接している。そのため、組立体同士を重ねた状態での安定性は、下方側の組立体を上方側の組立体における左右一対のブラケットの間に挿入する高さに起因している。また、組立体同士を重ね合わせた高さは、補強部材５の側部５ｂの高さに起因している。そこで、補強部材５の側部５ｂの下端は、特に、ブラケット６の中央部分１０の側部１０ｂにおける高さ方向中央位置より上方に配置されていると好ましい。このような構成によって、組立体同士を重ね合わせた状態の安定性を高め、かつ組立体同士を重ね合わせた高さを低くすることができる。 Here, with reference to FIG. 8, the aspect which uses the assembly of the reinforcement member 5 and the bracket 6 in piles is demonstrated.
In FIG. 8, the assembly of the reinforcing member 5 and the bracket 6 (hereinafter referred to as “assembly”) is shown in a state of being stacked in the vertical direction. In such a state, the lower assembly is inserted between the pair of left and right brackets 6 in the upper assembly. Further, the lower end of the side portion 5b of the reinforcing member 5 in the upper assembly is in contact with the upper portion 10a of the central portion 10 of the bracket 6 in the lower assembly. Therefore, the stability in a state where the assemblies are overlapped is caused by the height at which the lower assembly is inserted between the pair of left and right brackets in the upper assembly. Further, the height at which the assemblies are overlapped is due to the height of the side portion 5b of the reinforcing member 5. Therefore, it is preferable that the lower end of the side portion 5 b of the reinforcing member 5 is disposed above the center position in the height direction of the side portion 10 b of the central portion 10 of the bracket 6. With such a configuration, it is possible to improve the stability in a state where the assemblies are overlapped with each other and to reduce the height where the assemblies are overlapped.

以上のように本発明の実施形態によれば、ブラケット６の端部分１１の側部１１ｂが、端部分１１の上部１１ａから下方に向かうに従って、端部分１１の上部１１ａに対して車幅方向外側に広がって形成されて、フロアトンネル３の下側側部３ｄに接合されているので、フロアトンネル３とブラケット６との間における車両上下方向の接合強度が高まることとなる。従って、シート９に対して車両前側斜め上方に向かう力が加えられた場合に、このような力に対するシート９の取付部及びその周辺の剛性を高めることができる。
また、補強部材５とブラケット６とを組み立てた状態で、当該組立体を電着塗装した場合に、電着塗装液は、組立体内に残留せずに開口部１０ｃから流れることとなる。そのため、電着塗装工程の後工程にて、組立体内に残留した電着塗装液によって補強部材５の塗装面に液ダレが発生することを防止でき、塗装面の塗装品質低下を防止できる。
さらに、ブラケット６の中央部分１０の上部１０ａが補強部材５の上部５ａから車幅方向外側に突出して形成され、中央部分１０の側部１０ｂが、中央部分１０の上部１０ａから下方に向かうに従って、中央部分１０の上部１０ａに対して車幅方向外側に広がって形成され、ブラケット６の両端部分１１の側部１１ｂが補強部材５の側部５ｂ及びフロアトンネル３の下側側部３ｄに沿って、かつ両端部分１１の上部１１ａから下方に向かうに従って両端部分１１の上部１１ａに対して車幅方向に広がって形成されているので、補強部材５とブラケット６とを組み立てた状態で、当該組立体同士を重ねて輸送することができる。そのため、車両の生産中に、このような組立体の輸送効率を高めて、車両の生産効率を高めることができる。
よって、シート９の取付構造をフロアトンネル３側に設けることによって車幅を狭くする一方で車室内の居住空間を確保し、かつシート９の取付安定性を高めながら、シート取付部及びその周辺の剛性を高め、塗装面の塗装品質低下を防止し、かつ車両の生産効率を高めることができる。 As described above, according to the embodiment of the present invention, as the side portion 11b of the end portion 11 of the bracket 6 moves downward from the upper portion 11a of the end portion 11, the outer side in the vehicle width direction with respect to the upper portion 11a of the end portion 11. Therefore, the joint strength in the vehicle vertical direction between the floor tunnel 3 and the bracket 6 is increased. Therefore, when a force directed obliquely upward on the front side of the vehicle is applied to the seat 9, it is possible to increase the rigidity of the attachment portion of the seat 9 and its surroundings against such a force.
Further, when the assembly is electrodeposited with the reinforcing member 5 and the bracket 6 assembled, the electrodeposition coating liquid does not remain in the assembly but flows from the opening 10c. Therefore, it is possible to prevent the dripping of the painted surface of the reinforcing member 5 due to the electrodeposition coating liquid remaining in the assembly in the subsequent process of the electrodeposition coating process, and it is possible to prevent the coating quality from being deteriorated on the painted surface.
Further, the upper portion 10a of the central portion 10 of the bracket 6 is formed to protrude outward in the vehicle width direction from the upper portion 5a of the reinforcing member 5, and as the side portion 10b of the central portion 10 moves downward from the upper portion 10a of the central portion 10, The side part 11b of the both end parts 11 of the bracket 6 extends along the side part 5b of the reinforcing member 5 and the lower side part 3d of the floor tunnel 3 so as to extend outward in the vehicle width direction with respect to the upper part 10a of the central part 10. And, since it is formed so as to expand in the vehicle width direction with respect to the upper portion 11a of the both end portions 11 as it goes downward from the upper portion 11a of the both end portions 11, the assembly in a state where the reinforcing member 5 and the bracket 6 are assembled. They can be transported in layers. Therefore, during the production of the vehicle, it is possible to increase the transportation efficiency of such an assembly and increase the production efficiency of the vehicle.
Therefore, by providing the seat 9 mounting structure on the floor tunnel 3 side, the vehicle width is narrowed while the living space in the vehicle interior is secured, and the seat 9 is secured to the seat mounting portion and its surroundings while improving the seating stability. The rigidity can be increased, the paint quality of the painted surface can be prevented from being lowered, and the production efficiency of the vehicle can be increased.

本発明の実施形態によれば、ブラケット６の取付孔１３は、前側の端部分１１の側部１１ｂ及びフロアトンネル３の下側側部３ｄの接合部１２ｂ，１２ｃと、後側の端部分１１の側部１１ｂ及びフロアトンネル３の下側側部３ｄの接合部１２ｄ，１２ｅの間に配置されているので、取付孔１３によってブラケット６に取付けられたシート９に対して車両前側斜め上方に向かう力が加えられた場合に、ブラケット６に伝えられた力が、車両上下方向の接合強度が高められた接合部１２ｂ〜１２ｄによって、確実にフロアトンネル３に分散されることとなる。よって、シート取付部及びその周辺の剛性を高めることができる。   According to the embodiment of the present invention, the mounting hole 13 of the bracket 6 includes the side portion 11 b of the front end portion 11, the joint portions 12 b and 12 c of the lower side portion 3 d of the floor tunnel 3, and the rear end portion 11. Is located between the joint portion 12d, 12e of the lower side portion 3d of the floor tunnel 3 and the seat 9 attached to the bracket 6 by the attachment hole 13 toward the vehicle front side obliquely upward. When a force is applied, the force transmitted to the bracket 6 is reliably distributed to the floor tunnel 3 by the joint portions 12b to 12d whose joint strength in the vehicle vertical direction is increased. Therefore, the rigidity of the seat mounting portion and its periphery can be increased.

本発明の車両用シートの取付構造では、ブラケット６の開口部１０ｃの端面はフロアトンネル３の下側側部３ｄの表面に対して略直交して配置されているので、ブラケット６に加わる荷重を確実に分散させることができる。また、ブラケット６の成形深さを浅くできるので、ブラケット６の成形性を高めることができる。その結果、ブラケット６及び車両の生産効率を高め、ひいてはブラケット６及び車両の生産コストを低減できる。よって、シート取付部及びその周辺の剛性を高め、かつ車両の生産効率を高めることができる。   In the vehicle seat mounting structure of the present invention, the end surface of the opening 10c of the bracket 6 is disposed substantially orthogonal to the surface of the lower side portion 3d of the floor tunnel 3, so that the load applied to the bracket 6 is not increased. It can be reliably dispersed. Moreover, since the molding depth of the bracket 6 can be reduced, the moldability of the bracket 6 can be improved. As a result, the production efficiency of the bracket 6 and the vehicle can be increased, and consequently the production cost of the bracket 6 and the vehicle can be reduced. Therefore, it is possible to increase the rigidity of the seat mounting portion and its surroundings and increase the production efficiency of the vehicle.

本発明の車両用シートの取付構造では、フロアトンネル３の下側側部３ｄと、内部補強部材８の取付部８ａと、ブラケット６の端部１１の側部１１ｂとが重ね接合されているので、ブラケット６が、フロアトンネル３及び内部補強部材８に強固に取付けられることとなる。よって、シート取付部及びその周辺の剛性を高めることができる。   In the vehicle seat mounting structure of the present invention, the lower side portion 3d of the floor tunnel 3, the mounting portion 8a of the internal reinforcing member 8, and the side portion 11b of the end portion 11 of the bracket 6 are overlapped and joined. The bracket 6 is firmly attached to the floor tunnel 3 and the internal reinforcing member 8. Therefore, the rigidity of the seat mounting portion and its periphery can be increased.

ここまで本発明の実施形態について述べたが、本発明は既述の実施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 so far, the present invention is not limited to the above-described embodiments, and various modifications and changes can be made based on the technical idea of the present invention.

１ 車体
３ フロアトンネル
３ｂ 上部
３ｃ 上側側部
３ｄ 下側側部
５ 補強部材
５ａ 上部
５ｂ 側部
６ ブラケット
８ 内部補強部材
８ａ 取付部
９ シート
１０ 前後方向中央部分（中央部分）
１０ａ 上部
１０ｂ 側部
１０ｃ 開口部
１１ 前後方向端部分（端部分）
１１ａ 上部
１１ｂ 側部
１２ａ，１２ｂ，１２ｃ，１２ｄ，１２ｅ 接合部
１３ 取付孔
DESCRIPTION OF SYMBOLS 1 Car body 3 Floor tunnel 3b Upper part 3c Upper side part 3d Lower side part 5 Reinforcement member 5a Upper part 5b Side part 6 Bracket 8 Internal reinforcement member 8a Mounting part 9 Seat 10 Center part in the front-rear direction (center part)
10a upper part 10b side part 10c opening part 11 front and rear direction end part (end part)
11a upper part 11b side part 12a, 12b, 12c, 12d, 12e joint part 13 attachment hole

Claims (4)

車両フロアのフロアトンネルの上部及び上側側部に沿って断面コ字形状に形成され、かつ前記フロアトンネルに上方から重ねて配置される補強部材と、
前記補強部材の上部の車幅方向両端部に配置されるシート取付ブラケットと
を備えている車両用シートの取付構造であって、
前記シート取付ブラケットの前後方向中央部分の上部が前記補強部材の上部から車幅方向外側に突出して形成され、
前記前後方向中央部分の側部が前記前後方向中央部分の上部から下方に向かうに従って前記前後方向中央部分の上部に対して車幅方向外側に広がって形成され、
前記前後方向中央部分の側部下端に開口部が設けられ、
前記シート取付ブラケットの前後方向両端部分の上部が前記補強部材の上部に沿って形成され、
前記前後方向両端部分の側部が、前記補強部材の側部及び前記フロアトンネルの下側側部に沿うとともに、前記前後方向両端部分の上部から下方に向かうに従って前記前後方向両端部分の上部に対して車幅方向外側に広がって形成され、
前記シート取付ブラケットの前後方向端部分が、前記補強部材と、前記フロアトンネルの下側側部とに接合されていることを特徴とする、車両用シートの取付構造。 A reinforcing member that is formed in a U-shaped cross-section along the upper and upper side portions of the floor tunnel of the vehicle floor, and is disposed to overlap the floor tunnel from above;
A mounting structure for a vehicle seat, comprising: seat mounting brackets disposed at both ends of the reinforcing member in the vehicle width direction;
The upper part of the center part in the front-rear direction of the seat mounting bracket is formed to protrude outward in the vehicle width direction from the upper part of the reinforcing member,
The side part of the front-rear direction center part is formed to spread outward in the vehicle width direction with respect to the upper part of the front-rear direction center part as it goes downward from the upper part of the front-rear direction center part,
An opening is provided at the lower end of the side portion of the central portion in the front-rear direction,
The upper part of both ends in the front-rear direction of the seat mounting bracket is formed along the upper part of the reinforcing member,
Sides of the both ends in the front-rear direction are along the side of the reinforcing member and the lower side of the floor tunnel, and with respect to the upper parts of the both ends in the front-rear direction as they go downward from the upper part of the both ends in the front-rear direction. And spread outward in the vehicle width direction,
A vehicle seat mounting structure, wherein an end portion in the front-rear direction of the seat mounting bracket is joined to the reinforcing member and a lower side portion of the floor tunnel. 前記シート取付ブラケットの前後方向中央部分の上部に取付孔が設けられ、
前記取付孔が、前記シート取付ブラケットの前後方向端部分の側部と前記フロアトンネルの下側側部とを接合した一対の接合部の間に配置されていることを特徴とする、請求項１の車両用シートの取付構造。 A mounting hole is provided in the upper part of the center portion in the front-rear direction of the seat mounting bracket,
The said mounting hole is arrange | positioned between a pair of junction part which joined the side part of the front-back direction edge part of the said seat mounting bracket, and the lower side part of the said floor tunnel, The said feature is characterized by the above-mentioned. The vehicle seat mounting structure. 前記シート取付ブラケットの開口部の端面が、前記フロアトンネルの下側側部の表面に対して直交して配置されていることを特徴とする、請求項１又は２に記載の車両用シートの取付構造。   The vehicle seat mounting according to claim 1 or 2, wherein an end surface of the opening of the seat mounting bracket is disposed orthogonal to a surface of a lower side portion of the floor tunnel. Construction. 前記フロアトンネルの内部に内部補強部材が設けられ、
前記内部補強部材には、前記シート取付ブラケットの前後方向端部分の側部と、フロアトンネルの下側側部とに重なるように形成された取付部が設けられ、
前記シート取付ブラケットの前後方向端部分の側部と、前記フロアトンネルの下側側部と、内部補強部材の取付部とが重ね接合されていることを特徴とする、請求項１〜３のいずれか一項に記載の車両用シートの取付構造。 An internal reinforcing member is provided inside the floor tunnel,
The inner reinforcing member is provided with a mounting portion formed so as to overlap a side portion of the seat mounting bracket in the front-rear direction end portion and a lower side portion of the floor tunnel,
The side part of the front-back direction edge part of the said seat attachment bracket, the lower side part of the said floor tunnel, and the attachment part of an internal reinforcement member are overlap-joined, The any one of Claims 1-3 characterized by the above-mentioned. The vehicle seat mounting structure according to claim 1.
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