JP5800224B2 - Rear seat support structure - Google Patents

Description

  The present invention relates to a rear seat support structure for a vehicle.

  Japanese Patent Laying-Open No. 2006-290064 describes the structure of a vehicle seat support. The structure includes a third row seat having a front leg and a rear leg at the lower portion of the seat cushion, and the front leg and the rear leg engage with a front seat anchor and a rear seat anchor fixed to the floor panel. Further, the structure includes a plurality of cross members elongated in the vehicle width direction, and the cross members are formed in a hat shape that opens upward, and are fixed to the lower surface of the floor panel to form a closed cross section.

JP 2006-290064 A

  In the above structure, the front seat anchor and the rear seat anchor are fixed to a portion of the floor panel that forms a closed section with the cross member. For this reason, it is possible to support the third row seat with sufficient support rigidity at a portion reinforced by the front leg, the rear leg, and the cross member of the floor panel.

  However, in the above structure, the cross member must be fixed to the floor panel. Further, in order to ensure the rigidity of the front leg, it is necessary to provide a reinforcing member or set the thickness of the front leg to be relatively thick. For this reason, the increase in the number of parts leads to a complicated structure and an increase in cost and weight of the vehicle.

  The present invention has been made in view of the above circumstances, and provides a rear seat support structure capable of reliably supporting the rear seat while simplifying the structure and reducing the cost and weight of the vehicle. Objective.

  In order to achieve the above object, a rear seat support structure of the present invention includes a floor panel, a seat riser, and a rear seat.

The floor panel includes a main floor surface portion that forms at least a rear region of the floor surface of the passenger compartment, a floor standing surface portion that extends upward from a rear end portion of the main floor surface portion, and a rear side from an upper end portion of the floor standing surface portion. A floor rear surface portion that extends in a bent manner, and the seat riser is disposed above the floor panel, joined to the front front end portion of the floor rear surface portion, and extends forward, the main floor surface portion, and the floor upright The rear seat is placed on the seat riser. The rear seat extends from the support surface portion in the upper region of the surface portion and is joined to the upper surface of the main floor surface portion and the front surface of the floor standing surface portion. The lower part of the front end of the rear seat is fixed to the front part of the support surface part of the seat riser, and the lower part of the rear end of the rear seat is fixed to the rear part of the floor and the rear part of the seat riser .

  In the above configuration, the front portion of the rear seat can be supported by the floor riser to which the seat riser and the seat riser of the box structure having the support surface portion and the side surface portion are joined. For this reason, the rear seat can be supported with sufficient support rigidity.

  Further, since it is not necessary to provide the cross member and the front leg and the front leg reinforcing member, it contributes to the simplification of the structure and the cost and the weight of the vehicle.

  Further, the side surface portion is bent downward from the entire edge of the upper region of the main floor surface portion and the floor upright surface portion of the support surface portion, and is joined to the upper surface of the main floor surface portion and the front surface of the floor upright surface portion, and the front end of the rear seat. The lower portion may be fixed to the front end portion of the support surface portion of the seat riser.

  In the above configuration, the front end of the rear seat is supported by the seat riser of the box structure having the support surface portion and the side portion, and the floor panel to which the seat riser is joined, and the rear end of the rear seat is supported by the floor panel. be able to.

  Further, the floor standing surface portion extends obliquely upward from the rear end portion of the main floor surface portion, and the side surface portion extends downward from the entire edge of the upper region of the main floor surface portion so as to extend from the front surface portion of the floor. The first side surface portion joined to the upper surface is continuous from the rear end edges of both sides of the first side surface portion in the vehicle width direction, and is bent downward from the entire edge of the upper region of the floor standing surface portion of the support surface portion. A pair of left and right second side surface portions that extend and are joined to the front surface of the floor standing surface portion may be included.

  In the above configuration, the front end of the rear seat can be supported by the sheet riser of the box structure having the support surface portion, the first side surface portion, and the second side surface portion, and the floor panel to which the seat riser is joined.

  According to the present invention, the rear seat can be reliably supported while simplifying the structure and reducing the cost and the weight of the vehicle.

It is a principal part perspective view which shows the rear seat support structure of the vehicle concerning embodiment of this invention. It is a principal part disassembled perspective view of the rear seat support structure of FIG. It is a principal part perspective view which shows the seat riser and floor panel of the rear seat support structure of FIG. It is the IV-IV sectional view taken on the line of FIG. It is the VV sectional view taken on the line of FIG. It is a principal part perspective view of the rear seat of the rear seat support structure of FIG. FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. 1 showing a modification of the rear seat support structure.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. In the drawing, the arrow FR indicates the front of the vehicle, the arrow UP indicates the upper side, and the arrow IN indicates the inner side in the vehicle width direction. In the following description, front and rear means front and rear of the vehicle, and left and right mean left and right in a state of facing the front of the vehicle.

  As shown in FIGS. 1 to 6, the rear seat support structure 1 according to the present embodiment is provided in a vehicle 2 such as a pickup truck, and has a floor panel 10 extending in the front-rear direction of the vehicle 2 and a lower end portion on the floor panel 10. A sheet riser 20 to be joined and a rear seat 50 placed on the sheet riser 20 are provided.

  As shown in FIGS. 1, 2 and 3, the floor panel 10 is made of a high-strength material such as a steel plate, is formed by press molding, extends rearward from the lower front end of the vehicle 2, and the floor surface of the vehicle interior 3 Partition. Further, a main floor surface portion 11 that forms a front region where a front seat on which a driver (not shown) is seated and a rear region behind the vehicle seat 3 is formed, and a rear end portion of the main floor surface portion 11 are slanted from the rear surface of the main floor surface portion 11. It has a floor standing surface portion 12 that stands up (inclined) rearward and upward, and a floor rear surface portion 13 that extends from the upper end portion of the floor standing surface portion 12 so as to be bent substantially horizontally rearward.

  A center tunnel 14 that bulges upward and extends in the front-rear direction is formed at a substantially central portion in the vehicle width direction of the main floor surface portion 11 and the floor standing surface portion 12. A propeller shaft (not shown) is disposed below the center tunnel 14. A bulging bottom surface portion 15 that bulges to substantially the same height as the center tunnel 14 is formed across the main floor surface portion 11 and the floor standing surface portion 12 at the left rear portion of the floor panel 10. A fuel tank (not shown) is disposed below the floor rear surface portion 13. In the floor rear surface portion 13, three bolt holes 16 penetrating in the vertical direction are provided side by side at a predetermined interval in the vehicle width direction.

  As shown in FIGS. 1, 2, and 3, the sheet riser 20 is a member made of a high-strength material such as a steel plate having a relatively thin plate thickness and formed by press molding, and is disposed above the floor panel 10. The support surface portion 21 and the side surface portion 33 are integrally provided.

  The support surface portion 21 has a substantially rectangular shape, and its rear end portion is joined to the front end portion of the upper surface of the floor rear surface portion 13 by welding or bonding with an adhesive or the like by spot welding or the like, and is substantially connected to the main floor surface portion 11. Extends forward horizontally. Moreover, it has the left side opening part 24 and the right side opening part 25 which penetrate to an up-down direction, and the connection part 26 which connects the front-end part and rear-end part of the support surface part 21 between each opening parts 24 and 25 is provided. Have. At both ends in the vehicle width direction of the front end portion of the support surface portion 21, recessed portions 22a that are recessed downward are provided. Inside the recessed portion 22a, strikers that engage with hook portions 67 of the rear seat 50 described later are provided. Yes. At the rear end portion of the support surface portion 21, three bolt holes 28 penetrating in the vertical direction are provided side by side at a predetermined interval in the vehicle width direction.

A substantially central portion in the vehicle width direction extends along the vehicle width direction on the front edge of the support surface portion 21, and both end portions in the vehicle width direction extend outward to form a front edge portion 29. A side edge 30 extending rearward from the rear edge of the front edge 29 is formed on the side edge. The front edge portion 29 is formed in an upper region of the main floor surface portion 11, and the side edge portion 30 is formed in an upper region of the floor standing surface portion 12.

  The side surface portion 33 includes a first side surface portion 22 and a second side surface portion 23. The first side surface portion 22 extends downwardly from the entire end edge of the front edge portion 29 of the support surface portion 21. A curved portion 27 that is curved upward corresponding to the center tunnel 14 is formed at a substantially central portion of the first side surface portion 22 in the vehicle width direction. A flange portion 22b that bends forward and extends forward is formed at the lower edge portion of the first side surface portion 22, and the flange portion 22b is adhered to the upper surface of the main floor surface portion 11 by spot welding or the like with an adhesive or an adhesive. Etc. are joined. As shown in FIG. 4, the front edge portion of the bulging bottom surface portion 15 formed on the floor panel 10 abuts on the left rear surface of the first side surface joined to the main floor surface portion 11.

  The second side surface portion 23 is bent downward from the entire end edge of the side edge portion 30 of the support surface portion 21, and is integrally formed in a pair of left and right continuously from the rear end edge of the first side surface portion 22. Further, the second side surface portion 23 is formed in a substantially triangular shape along the floor standing surface portion 12 as viewed from the vehicle width direction (in side view). A flange portion 23a extending outward in the vehicle width direction is formed on the lower edge of the second side surface portion 23, and the flange portion 23a is adhered to the front surface of the floor upright surface portion 12 by spot welding or the like with an adhesive or the like. Are joined together. As described above, the rear end portion of the support surface portion 21 is joined to the upper front end portion of the floor rear surface portion 13, the first side surface portion 22 is joined to the main floor surface portion 11, and the second side surface portion 23 is the floor upright surface portion. 12, the sheet riser 20 is joined to the floor panel 10.

  Below the support surface portion 21, a connecting portion bracket 40 having a substantially hat-shaped cross section in which the front end portion abuts on the rear surface of the first side surface portion 22 and the rear end abuts on the standing surface portion is disposed. The connecting portion bracket 40 has flange portions 41 extending outward in the vehicle width direction at both lower ends, and the left flange portion 41 is bonded to the bulging bottom surface portion 15 by spot welding or the like or bonded with an adhesive. Similarly, the right flange portion 41 is joined to the upper surface of the center tunnel 14. A closed space 42 defined by the inner surface of the connecting portion bracket 40 and the upper surfaces of the main floor surface portion 11 and the floor standing surface portion 12 is formed inside the joined connecting portion bracket 40. The width of the upper surface of the connecting portion bracket 40 in the vehicle width direction is set to be substantially the same as that of the connecting portion 26. The upper surface of the connecting portion bracket 40 comes into contact with the front end portion of the support surface portion 21, the connecting portion 26, and the portion not joined to the floor rear surface portion 13 at the rear end portion from below. A bolt hole 43 communicating with the bolt hole 16 provided substantially at the center of the three bolt holes 16 provided in the floor rear surface portion 13 is formed in a portion of the upper surface of the connecting portion bracket 40 that contacts the floor rear surface portion 13. Is formed.

  When the connecting bracket 40 is joined to the floor panel 10, as shown in FIGS. 3 and 5, the seat riser 20 joined to the floor panel 10 and the inner space formed inside the seat riser 20 by the floor panel 10. Is divided into a left accommodation space 31 and a right accommodation space 32. The left housing space 31 communicates with the left opening 24, and the right housing space 32 communicates with the right opening 25.

  As shown in FIGS. 1 and 2, the rear seat 50 is disposed in the rear region of the passenger compartment 3, and has a seat cushion 60 on which a passenger sits, a seat back 70 that supports the back of the seated passenger, and the seat back 70. It is a seat for three persons having two headrests 51 that are fixed and support the back of the occupant and three rear seat brackets 80 that are arranged in the vehicle width direction.

  The seat cushion 60 includes a left seat cushion 61 on which one occupant can be seated and a right seat cushion 62 on which two occupants can be seated. As shown in FIG. 6, each of the seat cushions 61 and 62 includes a seat cushion frame 63 made of a metal round pipe and having a substantially rectangular frame shape, a seat cushion pad formed by foaming urethane (not shown), and a seat cushion bracket 64. And having.

  A plurality of wires 65 are installed on the seat cushion frame 63, and a seat cushion pad is placed on the seat cushion frame 63. In addition, seat cushion brackets 64 are fixed to both ends of the seat cushion frame 63 in the vehicle width direction. The seat cushion bracket 64 is provided with a through hole 66 penetrating in the vehicle width direction. The through hole 66 is inserted into a rotation shaft 85 of a rear seat bracket 80 described later, whereby the seat cushion bracket 64 is formed in the rear seat bracket 80. 1 is fixed so as to be pivotable in the directions of arrows a and b in FIG. 1 around the rotation shaft 85, and the seat cushions 61 and 62 are pivotable to the rear seat bracket 80 in the directions of arrows a and b in FIG. Supported. At the front end portion of the seat cushion frame 63, a hook portion 67 that engages with a striker provided inside the recess 22a of the support surface portion 21 of the seat riser 20 is provided. In addition, a pair of left and right contact portions 68 are provided with the hook portion 67 interposed therebetween. The contact portion 68 has an upper edge joined to the front end portion of the seat cushion frame 63, a pair of left and right side plate portions 68a extending downward from the front end portion, and a bottom surface portion 68b connecting the lower edge of the side plate portion 68a, An elastic member, for example, a plate-like rubber is attached to the lower surface of the bottom plate portion 68b. The seat cushions 61 and 62 are covered with a seat cushion cover 69.

  The seat back 70 includes a seat back frame 71 made of a metal round pipe and having a substantially rectangular frame shape, a seat back pad (not shown) formed by molding urethane foam or the like, and a seat back bracket 72. Seat back brackets 72 are fixed to lower portions of both ends of the seat back frame 71 in the vehicle width direction. The seat back bracket 72 is provided with a through hole 73 that penetrates in the vehicle width direction. The through hole 73 is inserted into a rotation shaft of a rear seat bracket 80 described later, whereby the seat back bracket 72 is formed in the rear seat bracket 80. 1 is fixed so as to be rotatable in the directions of arrows a and b in FIG. 1 around the rotation shaft 85, and the seat back 70 is supported by the rear seat bracket 80 so as to be rotatable in the directions of arrows a and b in FIG. Is done. The seat back 70 is covered with a seat back cover 74.

The three rear seat brackets 80 arranged side by side in the vehicle width direction have a plate-like bottom surface portion 81 extending in the front-rear direction and a side plate portion 82 extending upward from one side portion of the bottom surface portion 81. A front flange portion 83 and a rear flange portion 84 are formed at the front and rear end portions of the bottom surface portion 81, and the bottom surface portion 81 is formed in a substantially hat shape in cross section when viewed from the vehicle width direction. A rotating shaft 85 protruding in the vehicle width direction is provided on the upper side of the side plate portion 82 so that the rear seat bracket 80 provided on the left and right sides in the vehicle width direction protrudes inward in the vehicle width direction. About the rear seat bracket 80 provided in the approximate center of the vehicle width direction, it is provided so that it may protrude in both the left and right directions. The rotation shaft 85 is inserted through through holes 66 and 73 provided in the rear seat bracket 80 and the seat back bracket 72. Rear seat brackets 80 arranged at both ends in the vehicle width direction fix the seat back 70 so as to be rotatable. The rear seat bracket 80 disposed on the left side and substantially the center in the vehicle width direction rotatably supports the left seat cushion 61, and the rear seat bracket 80 disposed substantially on the center and right side allows the right seat cushion 62 to pivot. To support. Each flange portion is provided with bolt holes 83a, 84a penetrating in the vertical direction. The bolt hole 84 a provided in the rear bracket communicates with the bolt hole 16 provided in the floor rear surface portion 13. Bolts (not shown) that are inserted through the connected bolt holes 16 and 84a from above are screwed into nuts (not shown) that are arranged below the floor rear surface portion 13, so that the rear seat bracket 80 is connected to the floor rear surface portion 13. Fastened and fixed to. Further, the bolt hole 83 a provided in the front flange portion communicates with the bolt hole 28 provided in the rear end portion of the seat riser 20. A bolt 90 inserted through the connected bolt holes 28 and 83a from above is located below the seat riser 20 (the bolts inserted through the bolt holes 28 and 83a provided at substantially the center in the vehicle width direction are connected to the inside of the connecting portion bracket 40. The rear seat bracket 80 is fastened and fixed to the seat riser 20 by being screwed into a nut 91 disposed in the closed space 42). Thus, in the present embodiment, the rear seat 50 is fastened and fixed to the floor rear surface portion 13 and the seat riser 20 via the rear seat bracket 80.

  When the rear seat 50 is fastened and fixed to the floor rear surface portion 13 and the seat riser 20, a seatable state in which an occupant can be seated, and an in-vehicle product such as a tool in and out of the left storage space 31 and the right storage space 32 of the seat riser 20 It is possible to set to an accommodable state.

  When setting the seatable state, the occupant engages the hook portion 67 provided on the seat cushion frame 63 of the rear seat 50 with the striker provided on the inner side of the recess 22 a of the support surface portion 21 of the seat riser 20. Thereby, the rotation of each seat cushion 60 in the direction of arrow a in FIG. 1 is restricted, and the bottom surface portion 68b of the contact portion 68 provided on the seat cushion frame 63 contacts the front end portion of the seat riser 20, A load input to the rear seat 50 is shared by the floor panel 10 via the seat riser 20 and the seat riser 20.

  When setting the seatable state, the occupant lifts the front end of the seat cushion 60 upward, and rotates the seat cushion 60 in the direction a of FIG. 1 about the rotation shaft 85 of the rear seat bracket 80. As a result, the openings 24 and 25 communicating with the accommodation spaces 31 and 32 of the rear seat riser 20 are opened, and the occupant can accommodate or take out the vehicle-mounted product in the accommodation spaces 31 and 32. .

  In the present embodiment, the hook portion 67 at the lower front end of the rear seat 50 is detachably fixed to the striker of the seat riser 20 of the box structure integrally including the support surface portion 21, the first side surface portion 22, and the second side surface portion 23. Then, since the contact portion 68 contacts the front end portion of the seat riser 20, the front of the rear seat 50 is supported by the floor panel 10 to which the seat riser 20 and the seat riser 20 are joined. For this reason, the load input in front of the rear seat 50 in the seatable state is shared by the seat riser 20 and the floor panel 10. Similarly, since the rear seat bracket 80 at the lower rear end of the rear seat 50 is fastened and fixed to the floor rear surface portion 13 and the seat riser 20, the seat riser 20 and the seat riser 20 are joined to the rear of the rear seat 50. Is supported by a floor panel 10. For this reason, the load input behind the rear seat 50 in the seatable state is shared by the seat riser 20 and the floor panel 10. Therefore, the rear seat 50 can be reliably supported.

  Further, since the seat riser 20 made of a high-strength material such as a steel plate having a relatively thin plate thickness is fixed to the floor panel 10, a cross member for reinforcing a portion for fixing the rear seat 50 and reinforcement of the front legs and the front legs of the rear seat 50 are provided. There is no need to provide a member, and the number of parts is reduced. For this reason, a structure can be simplified and it contributes to reduction of the cost and the weight of the vehicle 2.

  As mentioned above, although embodiment which applied the invention made | formed by this inventor was described, this invention is not limited with the description and drawing which make a part of indication of invention by this embodiment.

  For example, in the present embodiment, a mode has been described in which the floor standing surface portion 12 of the floor panel 10 extends from the rear end portion of the main floor surface portion 11 obliquely rearward and upward, but the floor standing surface portion 12 is disposed behind the main floor surface portion 11. You may make it stand in a substantially vertical direction from an edge part. In this case, as shown in FIG. 7, the side surface portion 33 is formed in a substantially rectangular shape when viewed from the vehicle width direction (in side view), and the lower end of the side surface portion 33 is joined to the upper surface of the main floor surface portion 11. The rear end of the portion 33 is joined to the front surface of the floor standing surface portion 12. In addition, illustration of the bulging bottom face part 15 is abbreviate | omitted in FIG.

  In the present embodiment, the front flange portion 83 of the rear seat bracket 80 is fastened and fixed to the seat riser 20, but instead, the front flange portion 83 may be fixed to the floor rear surface portion 13. In this case, three bolt holes communicating with the bolt holes 83a of the front flange portion 83 are formed in the floor rear surface portion, and the front flange portion 83a is fastened and fixed to the floor rear surface portion 13 with bolts inserted through the communicated bolt holes.

Further, in the present embodiment, the left-side seat cushion 61 and the right-side seat cushion 62 has been described with a direction and b directions rotatable manner in FIG. 1 around the rotation axis 85, the abutting portion 68 rubber was eliminated like attached to the bottom portion 68b the plate, by joining the bottom portion 68b in the front end portion of the support surface portion 21 of the seat risers 20 by spot welding or the like, the left side seat cushion 61 and the right-side seat cushion 62 may be fixed to the seat riser 20 so as not to rotate.

  That is, it should be added that other embodiments, examples, operation techniques, and the like made by those skilled in the art based on this embodiment are all included in the scope of the present invention.

  The present invention is widely applicable to a rear seat support structure for a vehicle.

1: rear seat support structure 2: vehicle 3: vehicle compartment 10: floor panel 11: main floor surface portion 12: floor standing surface portion 13: floor rear surface portion 14: center tunnel 15: bulging bottom surface portion 20: seat riser 21: support surface portion 22 : First side surface portion 22a: concave portion 22b: flange portion 23: second side surface portion 23a: flange portion 26: connecting portion 29: front edge portion 30: side edge portion 33: side surface portion 40: connecting portion bracket 50: rear seat 60: Seat cushion 70: Seat back 80: Rear seat bracket

Claims (3)

A main floor surface portion that forms at least a rear region of the floor surface of the passenger compartment, a floor rising surface portion that extends upward from a rear end portion of the main floor surface portion, and a rearward bending from an upper end portion of the floor standing surface portion. A floor panel having a floor rear surface portion extending,
The main floor is disposed above the floor panel, joined to the front upper end of the rear surface of the floor and extends forward, and extends from the support surface in the upper region of the main floor surface and the floor standing surface. A sheet riser having a top surface of the surface portion and a side surface portion joined to the front surface of the floor standing surface portion;
A rear seat placed on the seat riser,
The lower front end portion of the rear seat is fixed to the front portion of the seat riser ,
A rear seat support structure , wherein a rear end lower portion of the rear seat is fixed to a rear portion of the floor and a rear portion of the seat riser . The rear seat support structure according to claim 1,
The side surface portion is bent and extended downward from the entire edge of the upper region of the main floor surface portion and the floor standing surface portion of the support surface portion, and is joined to the upper surface of the main floor surface portion and the front surface of the floor standing surface portion. ,
The lower part of the front end of the rear seat is fixed to the front end part of the support surface part of the seat riser. The support structure for a rear seat according to claim 1 or 2,
The floor standing surface portion extends obliquely upward from the rear end portion of the main floor surface portion,
The side surface portion includes a first side surface portion bent downward from the entire edge of the upper region of the main floor surface portion and joined to the upper surface of the floor front surface portion, and a vehicle width direction of the first side surface portion. A pair of left and right second side surfaces that are continuous from the rear end edges of both sides and that are bent downward from the entire edge region of the upper region of the floor standing surface portion of the support surface portion and are joined to the front surface of the floor standing surface portion. And a rear seat support structure.

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