JP2007161126A - Seat mounting structure for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a seat mounting structure for a vehicle capable of ensuring attachment/detachment property of a seat back of a second rear row seat relative to a vehicle body while accomplishing enlargement of space layout freedom of the inside/outside of a cabin by a kickup part having different height and achieving freedom of layout in a compact body with low overall height, accomodation of a plurality passengers, attachment/detachment of a seat back of the second rear row seat and utility property of the rear seat. <P>SOLUTION: The upwardly stepped-up kickup part is provided on a floor panel and comprises a first kickup part and a second kickup part higher than the first kickup part. A first rear row seat 51 is arranged on the first kickup part, the second rear row seat 52 for an occupant with small physique is arranged on the second kickup part, and the seat back 52B of the second rear row seat 52 is detachably fixed to the vehicle body 71. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention provides a vehicle seat mounting in which a front row seat is disposed on a floor panel of a passenger compartment, and a rear row seat in which a pair of seats (separate type seats) are arranged in parallel behind the front row seat. Concerning structure.

Conventionally, as the vehicle seat mounting structure of the above-described example, there are structures shown in FIGS. 26, 27, and 28.
That is, a floor panel 200 that forms the lower surface of the passenger compartment is provided, and a driver seat 201 and a passenger seat 202 are attached to the front of the floor panel 200 on the left and right, while the rear side of the floor panel 200 is upward. A raised kick-up portion 203 having the same height on the left and right sides is provided, and rear seats 204 and 205 as left and right occupant seats are mounted side by side on the kick-up portion 203. Further, the above-described kick-up portion 203 is provided. In the vehicle width direction intermediate portion, a fuel tank 206 as a vehicle auxiliary machine is disposed below the vehicle outer side.

  On the other hand, in Patent Document 1, a kick-up portion having the same height on the left and right is formed stepwise with respect to the floor panel, which includes a curved portion and an extended portion obtained by extending the curved portion as it is. Cross members extending in the vehicle width direction are provided on the vehicle outer front portion and the vehicle rear rear portion of the kick-up portion, respectively, and a rear seat is attached on the kick-up portion, and the front and rear crosses are provided below the kick-up portion on the vehicle outer side. A member in which a fuel tank (vehicle auxiliary machine) whose upper surface is shaped along the curved portion and the extension portion described above is disposed between the members.

  In Patent Document 2, a kick-up floor portion is connected to a rear portion of a floor panel that forms a lower surface of a passenger compartment via a step portion, and a rear floor is connected to the kick-up floor portion via a rear kick-up portion. The step, kick-up floor, rear kick-up, and rear floor are set to the same height on the left and right, and a rear seat as a passenger seat is mounted on the above-described kick-up floor and rear kick-up. In addition, a fuel tank (vehicle auxiliary machine) having a structure along the continuous shape of each of these elements is disclosed on the vehicle exterior side of the stepped portion, kickup floor portion, rear kickup portion, and rear floor. Yes.

However, the conventional structure shown in FIGS. 26 to 28 and the above-mentioned Patent Documents 1 and 2 have no technical idea of varying the size (height) of the kick-up portion in the vehicle width direction.
By the way, there is a demand for a compact vehicle with a low overall height. In this case, the occupant's comfortability is ensured, and the degree of freedom of layout of seats and auxiliaries for the vehicle interior space above and below the kickup section and the vehicle exterior space is ensured. However, it is necessary to ensure utility (practicality) for the rear seats.

On the other hand, Patent Document 3 discloses a rear row seat in which a seat back of a bench seat type rear seat is connected to a vehicle body using a plurality of strikers. However, as long as it is a bench seat type, a separate seat is disclosed. It is difficult to ensure utility.
Japanese Patent Laid-Open No. 6-211169 JP-A-5-627 Japanese Patent Laid-Open No. 11-263247

  Therefore, in the present invention, the first kick-up portion and the second kick-up portion having different heights are juxtaposed in the vehicle width direction, and the first rear row seat is disposed on the first kick-up portion having a relatively low height. A second rear row seat for an occupant having a smaller physique than an occupant seated on the first rear row seat is disposed on the second kick-up portion having a relatively high height; By fixing the seat back to the vehicle body detachably, the kick-up part with different heights can secure the luggage compartment at the rear while expanding the layout flexibility of the interior space and the exterior space, The purpose of the present invention is to provide a seat mounting structure for a vehicle that can achieve layout flexibility, multi-person riding, practicality of the rear seats, and flatness when the seat back is lying down in a compact body with a low overall height. .

  In the vehicle seat mounting structure according to the present invention, a front row seat is disposed on a floor panel of a passenger compartment, and a vehicle is provided with a rear row seat in which a pair of seats are arranged behind the front row seat. A kick-up portion stepped upward is provided, and the kick-up portion is arranged in parallel with the first kick-up portion and the first kick-up portion in the vehicle width direction, and is higher than the first kick-up portion. The first rear row seat is disposed on the first kick up portion, and is smaller in size than an occupant seated on the first rear row seat on the second kick up portion. A second rear row seat for an occupant is provided, and a seat back of the second rear row seat is detachably fixed to the vehicle body.

According to the above configuration, since the above-described kick-up portion includes the first kick-up portion and the second kick-up portion having different heights, seats and auxiliary machines for the vehicle interior space and the vehicle exterior space above and below the kick-up portion. The degree of freedom in layout can be increased.
Further, since the seat back of the second rear row seat is detachably fixed to the vehicle body, the detachability can be ensured.

  In short, in a compact body with a low overall height, it is possible to achieve freedom of layout, multi-person riding, attachment / detachment of the seat back of the second rear row seat, and utility of the rear seat. Further, when the seat back is fixed to the vehicle body, the support rigidity of the second rear row seat can be ensured.

In one embodiment of the present invention, the second rear row seat is provided with a reinforcing member extending in the vehicle width direction and having both ends fixed to the vehicle body, and the seat back of the second rear row seat is fixed to the reinforcing member. It is a thing.
According to the above configuration, since the reinforcing members whose both end portions can be fixed to the vehicle body are provided, the vehicle body rigidity, the seat support rigidity, and the side impact resistance can be improved by the reinforcing members.

In one embodiment of the present invention, both ends of the reinforcing member are configured to be detachable from the vehicle body.
According to the above configuration, when the seat back of the second rear row seat is folded, the reinforcing member is removed from the vehicle body and moves integrally with the seat back. Therefore, the cargo compartment formed by folding the seat back is used as the reinforcing member. Will not interfere.

In one embodiment of the present invention, the first rear row seat and the second rear row seat are configured such that the seat back lies down above each seat cushion and can be folded to substantially the same height.
According to the above configuration, when the seat backs of the rear row seats are laid down and folded above the seat cushions, the seat backs have substantially the same height, so that a convenient luggage room can be secured.

In one embodiment of the present invention, the seat back rotation support shaft of the second rear row seat disposed on the second kick up portion is a seat of the first rear row seat disposed on the first kick up portion. It is arrange | positioned so that it may become a lower position than a back rotation spindle.
According to the above configuration, the height of the rear row seat itself varies depending on the height of the kick-up portion, but the height of the seat back rotation support shaft is set as described above, so Then, when folded on the seat cushion, the seat backs of the pair of rear row seats are securely folded to substantially the same height, ensuring flatness and ensuring loadability. .

In one embodiment of the present invention, in order to attach / detach the reinforcing member to / from the vehicle body, an attaching / detaching means provided with a release lever orthogonal to the movement trajectory of the seat back of the second rear row seat in the front-rear direction is provided, and the release lever Is provided with a taper portion for tightening.
According to the above configuration, since the reinforcing member is fastened to the vehicle body by the taper portion of the release lever, it is possible to secure the fastening rigidity by the release lever when the seat back of the second rear row seat is fixed.

In one embodiment of the present invention, a passenger seat is disposed in front of the first rear row seat, and a driver seat is disposed in front of the second rear row seat.
According to the above configuration, the seat back of the second rear row seat can be secured, and the space for the front row seat including the driver seat and the passenger seat can be secured in a well-balanced manner. Both safety and usability can be achieved.

  That is, an occupant with a large physique can be seated on the rear row seat (first rear row seat) on the passenger seat side. Generally, the rear row seat (first rear row seat) on the passenger seat side is frequently used, and this rear row seat (first rear row seat) Since the seat) corresponds to the sidewalk side (so-called shoulder), it is possible to achieve both safety and usability.

In one embodiment of the present invention, the passenger seat is offset forward from the driver seat.
According to the above configuration, while ensuring the detachability of the seat back of the second rear row seat, it is possible to secure the passenger seat space and to expand the space of the rear row seat (first rear row seat) on the passenger seat side, It is possible to improve the comfort of the passenger sitting on the first rear row seat.

  In other words, since the steering wheel is present on the driver's seat side, the driver's seat cannot be arranged in front of the driver's seat. The seats can be disposed offset to the front, whereby the space of the rear row seat (first rear row seat) on the passenger seat side can be increased.

In one embodiment of the present invention, vehicle auxiliary equipments having different sizes in the height direction are disposed below the vehicle interior outside the first kick-up portion and the second kick-up portion.
According to the above configuration, since the vehicle auxiliary machines are arranged below the first and second kick-up portions, the vehicle auxiliary machines having different sizes can be sorted and efficiently packaged.

  According to this invention, the first kick-up portion and the second kick-up portion having different heights are juxtaposed in the vehicle width direction, and the first rear row seat is placed on the first kick-up portion having a relatively low height. A second rear row seat for an occupant having a smaller physique than an occupant seated on the first rear row seat is disposed on the second kick-up portion having a relatively high height; Since the seat back is detachably fixed to the vehicle body, the detachability of the seat back of the second rear row seat to the vehicle body is enhanced by the kick-up portion with different heights, while increasing the layout flexibility of the vehicle interior space and the vehicle exterior space. A low-height, low-height, compact body that achieves freedom of layout, multi-seater riding, attachment / detachment of the seat back of the second rear row seat, and utility (practicality) of the rear seat In There is that effect.

  The kick-up part with different heights can secure the detachability of the seat back of the second rear row seat to the vehicle body while expanding the layout flexibility of the interior space and the exterior space of the vehicle. In the body, front row seats are arranged on the floor panel of the passenger compartment for the purpose of achieving freedom of layout, large number of passengers, attaching / detaching the seat back of the second rear row seat, and utility (utility) of the rear seat And a rear row seat in which a pair of seats are arranged side by side behind the front row seat, and a kick-up portion raised upward is provided on the floor panel, the kick-up portion being a first kick-up portion and The first kick-up portion is arranged in parallel with the first kick-up portion in the vehicle width direction, and includes a second kick-up portion that is higher in the height direction than the first kick-up portion. A first rear row seat is disposed on the second rear row seat for passengers having a smaller physique than an occupant seated on the first rear row seat on the second kick-up portion. It was realized by the configuration that fixed to the car body detachably.

An embodiment of the present invention will be described in detail with reference to the drawings.
The drawings show a vehicle seat mounting structure. First, a lower vehicle body structure of a vehicle will be described with reference to FIGS.

  1 to 7, a dash lower panel (dash panel) 1 for partitioning the engine room E and the vehicle compartment R in the front-rear direction is provided, and a floor panel extending substantially horizontally toward the rear is provided at the rear end of the lower end of the dash lower panel 1. The floor panel 2 forms the lower surface (bottom surface) of the passenger compartment R.

A kick-up portion 3 (see FIG. 2) that is stepped upward is provided at the rear of the floor panel 2 described above. This kick-up portion 3 is the first kick-up on the passenger side Pa (see the right side of the vehicle). And a second kick-up portion 5 on the driver's seat side Dr (see the left side of the vehicle) arranged in parallel with the first kick-up portion 4 in the vehicle width direction.
Moreover, as shown in a perspective view in FIG. 2, the second kick-up portion 5 is formed higher in the height direction than the first kick-up portion 4.

Here, the first kick-up portion 4 described above has a front wall portion 4a that rises upward from the floor panel 2, and a kick-up floor portion 4b that extends rearward from the front wall portion 4a.
The second kick-up portion 5 has a front wall portion 5a that rises upward from the floor panel 2 and a kick-up floor portion 5b that extends rearward from the front wall portion 5a. The rising amount of the front wall portion 5 a of the up portion 5 is set larger than the rising amount of the front wall portion 4 a of the first kick-up portion 4.

In addition, as shown in FIGS. 2 and 3, the first kick-up portion 4 is formed to be offset from the second kick-up portion 5 by a predetermined distance L1 in front of the vehicle.
A rear floor 7 is connected via a rear kick-up portion 6 further behind the kick-up floor portions 4b and 5b in the kick-up portion 3 described above.
On the other hand, a tunnel portion 8 is formed at the center of the floor panel 2 in the vehicle width direction so as to protrude inward of the passenger compartment R and extend in the front-rear direction of the vehicle. The tunnel portion 8 is formed between the dash lower panel 1 and the rear kick-up portion 6 so as to extend in the vehicle front-rear direction, and a closed cross section is formed between the tunnel portion 8 and the tunnel portion 8. 9 are joined to each other (a so-called high-mount backbone frame).

The tunnel member 10 described above is a vehicle body rigid member (strength member) that extends in the front-rear direction of the vehicle between the dash lower panel 1 and the rear kick-up portion 6 along the upper portion of the tunnel portion 8. The rigidity and vehicle body rigidity are improved.
Further, side sills 11 extending in the longitudinal direction of the vehicle are joined to both ends of the floor panel 2 in the vehicle width direction (see FIG. 3).

  The side sill 11 is a vehicle body rigid member having a side sill closed cross section that extends in the vehicle front-rear direction by joining a side sill outer, a side sill inner, and a side sill reinforcement. However, the side sill inner is shown in the drawings.

  As shown in FIGS. 2, 3, 5 to 7, a cross member 12 (No. 2) extending in the vehicle width direction by connecting a tunnel portion 8 and a side sill 11 to an intermediate portion in the front-rear direction of the floor panel 2. 2 cross members), and a closed cross section 13 extending in the vehicle width direction is formed between the cross member 12 (vehicle body rigid member) and the upper surface of the floor panel 2.

  As shown in FIGS. 2, 3, 5, and 6, a cross member 14 (No. 3 cross member) extending in the vehicle width direction is provided on the upper surface of the front portion of the first kick-up portion 4 on the passenger seat side Pa. A closed cross section 14 a extending in the same direction is formed between the upper surface of the first kick-up portion 4 and the cross member 14.

  As shown in FIGS. 2, 3, and 7, a cross member 15 (No. 3 cross member) extending in the vehicle width direction is provided on the upper surface of the front portion of the second kick-up portion 5 on the driver's seat side Dr. A closed cross section 15 a extending in the same direction is formed between the upper surface of the second kick-up portion 5 and the cross member 15.

As shown in FIGS. 2 and 3, the above-described cross members 14, 15 (vehicle body rigid members) are more than the first kick-up portion 4 than the cross-member 15 disposed at the front portion of the second kick-up portion 5. A cross member 14 disposed at the front is offset from the front of the vehicle.
The cross members 14 and 15 are located inside the vehicle interior R, and the vehicle interior side end (inner end in the vehicle width direction) is connected and fixed to the tunnel portion 8 described above.

  As shown in FIGS. 2, 3, 5, and 6, on the passenger side Pa, behind the first kick-up portion 4, there is a rear that extends in the vehicle width direction on the vehicle outer side of the rear kick-up portion 6 and the rear floor 7. A cross member 16 (No. 4 cross member) is provided, and a closed cross section 16a extending in the same direction is formed between the elements 6, 7 and 16, and the rear floor 7 and the rear cross member 16 are formed in the closed cross section 16a. A substantially Z-shaped node member 17 that connects the upper and lower parts is provided to improve the rigidity of the lower vehicle body.

  As shown in FIGS. 2, 3, and 7, a rear cross member 18 that extends in the vehicle width direction outside the rear kick-up portion 6 and the rear floor 7 is behind the second kick-up portion 5 on the driver's seat side Dr. (No. 4 cross member) is provided, and a closed cross section 18a extending in the same direction is formed between the elements 6, 7, and 18 to improve the rigidity of the lower vehicle body.

  These rear cross members 16 and 18 (vehicle body rigid members) are vehicle body rigid members that extend in the vehicle width direction across the first kick-up portion 4 and the second kick-up portion 5 behind the kick-up portion 3. 2, these rear cross members 16 and 18 are disposed behind the first kick-up portion 4 and the rear cross member 16 and the second kick-up portion 5 as shown in FIG. The rear cross member 18 is offset in the front-rear direction of the vehicle, and the rear cross members 16 and 18 are formed asymmetrically left and right.

  In this embodiment, as shown in FIGS. 2 and 3, the front portion of the rear cross member 16 on the passenger side Pa disposed behind the first kick-up portion 4 is located behind the second kick-up portion 5. The vehicle is offset from the front of the rear cross member 18 on the driver's seat side Dr.

  A rear cross member 19 (No. 5 cross member) that extends in the vehicle width direction and connects between a pair of left and right rear side frames 43 and 43, which will be described later, is provided at the rear of each of the rear cross members 16 and 18. Between the cross member 19 (vehicle body rigid member) and the rear floor 7, a closed cross section 19a extending in the vehicle width direction is formed. A spare tire pan (not shown) may be stepped down on the rear floor 7 behind the rear cross member 19.

On the other hand, as shown in FIGS. 2 and 4, on the lower surface of the floor panel 2, a pair of left and right floor frames 20 extending in the vehicle longitudinal direction between the side sill 11 and the tunnel portion 8 in the vehicle width direction, 20, a closed cross section 20a extending in the same direction is formed between the floor frame 20 and the lower surface of the floor panel 2.
The floor frame 20 is a vehicle body rigid member joined to the floor panel 2.

  Incidentally, as shown in a bottom view in FIG. 4, a transmission 21 is disposed in a lower space outside the vehicle of the tunnel portion 8, and the output of the transmission 21 is transmitted to the rear differential device 23 via the propeller shaft 22. The differential output of the rear differential device 23 is transmitted to the left and right rear wheels 25 and 25 via the left and right rear wheel drive shafts 24 and 24. The left and right rear wheels 25, 25 are suspended independently by left and right rear suspension devices 26, 26 (for example, double wishbone type suspension devices).

A power plant frame 27 having a substantially Z-shaped cross section and extending in the front-rear direction of the vehicle is provided between the transmission case of the transmission 21 and the differential case of the rear differential device 23.
The power plant frame 27 (so-called PPF) is for suppressing windup vibration of the rear differential device 23 while allowing movement in the roll direction from the engine drive system.

  Further, as shown in FIG. 4, the engine exhaust system includes a front exhaust pipe 28, a catalyst 29, a middle exhaust pipe 30, a pre-silencer 31, a rear exhaust pipe 32, a main silencer 33, and tail pipes 34, 34. An exhaust passage 35 is connected, and the exhaust passage 35 is supported on the body side via a bracket (not shown). The front exhaust pipe 28, the catalyst 29, and the middle exhaust pipe 30 are provided in a lower space outside the tunnel portion 8 on the vehicle exterior. Is located.

  By the way, as shown in FIGS. 3 to 7, a sub tank 36 (first fuel tank) as a first vehicle accessory is disposed below the first kick-up portion 4, and below the second kick-up portion 5. The main tank 37 (second fuel tank) as a large second vehicle auxiliary machine is arranged in the height direction from the sub tank 36. As shown in the perspective view of FIG. 8, the sub tank 36 and the main tank 37 are arranged. Is communicated in the vehicle width direction by a substantially gate-shaped tunnel tank portion 38 that rises upward and extends in the vehicle width direction, and is configured to ensure the tank capacity and is a single fuel tank 39 of asymmetrical saddle type. Are integrated.

Here, a raised portion 36a that rises upward along the rear surface of the rear kick-up portion 6 is formed integrally with the rear portion of the sub-tank 36 so that the tank capacity can be further increased by the raised portion 36a. It is composed.
A fuel pump 40 is attached to the upper part of the main tank 37. On the other hand, a fuel tank 39 in which the above-described sub tank 36 and main tank 37 are integrated via a tunnel tank portion 38 has tank bands 41 and 42 as tank support members, as shown in FIGS. It is supported on the body side through.

  9 is a cross-sectional view taken along line AA in FIG. 3, FIG. 10 is a cross-sectional view taken along line BB in FIG. 3, FIG. 11 is a cross-sectional view of a portion corresponding to the tunnel tank portion 38, and FIG. FIG. 13 is a cross-sectional view taken along the line D-D of FIG. 3, and as shown in FIGS. 3 and 9 to 13, the vehicle body is disposed on both sides of the lower surface of the rear floor 7. Rear side frames 43, 43 as rigid members are joined, and a pair of left and right rear side frames 43, 43 are extended toward the front end of the vehicle up to the rear end of the side sill 11.

  As shown in FIGS. 9, 10, and 11, rear side inner panels 44, 44 are joined and fixed to the outer sides of the first and second kick-up portions 4, 5 in the vehicle width direction.

  As shown in FIG. Each cross member 14, 15 as a three cross member has a first kick-up because the cross member 14 on the passenger side Pa is offset from the cross member 15 on the driver side Dr by a predetermined distance L in front of the vehicle. A vehicle interior side end portion (vehicle width direction inner end portion) of the cross member 14 disposed in the front portion of the portion 4 and a vehicle interior side end portion of the cross member 15 disposed in the front portion of the second kick-up portion 5. (Inner ends in the vehicle width direction) are connected by connecting members 45 and 46 (reinforcing members) shown in FIGS. 9 and 10 so as to improve the side impact resistance.

These connecting members 45 and 46 are located in the tunnel portion 8, that is, outside the tunnel portion 8, as shown in cross-sectional views in FIGS. 9 and 10.
Further, as shown in a plan view in FIG. 3, both the connect members 45 and 46 have front and rear widths where the connect members 45 and 46 overlap each other, and one connect member 45 is connected to both the cross members 14 and 15. The front and rear widths overlap each other, and the other connect member 46 is also configured to have front and rear widths that overlap the cross members 14 and 15.

One connecting member 45 is joined to the intermediate lower surface of the top deck portion of the tunnel portion 8 and the lower end vehicle exterior of the tunnel portion 8, and a closed cross section 45 a is formed between the tunnel portion 8.
The other connect member 46 is joined to the vehicle outer side of the intermediate portion of the vertical wall portion of the tunnel portion 8 and the vehicle outer surface of the one connect member 45, and a closed cross-section 46 a is formed between the tunnel portion 8.

  As shown in FIG. 14 in an exploded perspective view of both the connect members 45 and 46, one connect member 45 includes an upper joining piece 45b, a middle joining piece 45c in the vertical direction, and a lower joining piece 45d. Each of the joining pieces, that is, the joining pieces 45b and 45c, and the joining pieces 45c and 45d are joined together. The reinforcing members are integrally formed of metal pieces.

  The other connecting member 46 includes an upper joining piece 46b, a lower joining piece 46c, and a curved connecting piece 46d that connects both the joining pieces 46b and 46c in the vertical direction. It is the reinforcement member which integrally formed the pieces 46b-46d with the metal member.

  14, in addition to the structure shown in FIG. 14, beads 45g and 46e (for example, cross-shaped beads) extending at least in the vehicle width direction are provided on the above-mentioned connect members 45 and 46 as shown in FIG. It may be integrally formed toward the 46a side, and the bead 45g, 46e may further improve the rigidity of the vehicle body and the side impact resistance.

  As shown in a sectional view of a portion corresponding to the tunnel tank portion 38 of the fuel tank 39 in FIG. 11, the tunnel tank portion 38 that communicates the sub tank 36 and the main tank 37 in the vehicle width direction outside the tunnel portion 8. Below, a middle exhaust pipe 30 (exhaust pipe), a propeller shaft 22 and a power plant frame 27 as third vehicle auxiliary machines are arranged.

  As shown in FIG. Each of the rear cross members 16 and 18 as the four cross members is disposed such that the front portion of the rear cross member 16 on the passenger side Pa is offset from the front portion of the rear cross member 18 on the driver seat side Dr in front of the vehicle. Since these rear cross members 16 and 18 are divided in the vehicle width direction, these rear cross members 16 and 18 are connected by a connect member 47 in the vehicle width direction as shown in FIGS. To improve vehicle body rigidity and side impact strength.

  The above-mentioned connect member 47 is a member having a concave cross section. The connect member 47 is connected to the lower surface of the rear floor 7 to form a closed cross section 47a between the two members 47 and 47. As shown in FIGS. 12 and 13, it is connected between a rear side frame 43 having a closed section 43a structure and a connect member 47, and the other rear cross member 18 is also connected to a rear side frame 43 having a closed section 43a structure as shown in FIG. The connection member 47 is connected.

  The above-mentioned connect member 47 is No. Among the rear cross members 16 and 18 as four cross members, the rear cross members 16 and 18 having a front and rear width substantially equal to the rear cross member 16 having the wider front and rear width are divided into the vehicle width. It is a connection member that connects in a continuous manner.

Next, the vehicle seat mounting structure will be described in detail.
FIG. 16 is a plan view showing a state in which the rear row seat and the front row seat are attached to the vehicle body shown in FIG. 3, and a first rear seat 51 is disposed on the first kick-up portion 4 described above, A second rear seat 52 for an occupant Y (see FIG. 7) whose physique is smaller than the physique of the occupant X (see FIG. 5) seated on the first rear seat 51 is disposed on the second kick-up portion 5. .

  Each of the first and second rear seats 51 and 52 is configured as a left and right separate seat (bucket seat) having seat cushions 51C and 52C and seat backs 51B and 52B, respectively. As shown in FIGS. 6 and 17, the seat back 51B of the first rear seat 51 includes a reclining mechanism 55 including a rotation support shaft P1 as a hinge center and a reclining hinge bracket 54, and the rotation support shaft P1 is a fulcrum. 6 and 17 are configured so as to recline backward, as shown in phantom lines in FIG. 6, and configured to fold down and fold over the seat cushion 51C. Yes.

  Further, the seat back 52B of the second rear seat 52 lies down above the seat cushion 52C as indicated by the phantom line in FIG. 1, with the rotation support shaft P2 (see FIGS. 1 and 7) as a hinge center serving as a fulcrum. And is foldable.

  As shown in FIG. 17 together with the above-mentioned rotation support shafts P1 and P2, the rotation support shaft P2 of the second rear seat 52 is disposed rearward of the rotation support shaft P1 of the first rear seat 51. The rotation support shaft P2 of the second rear seat 52 is disposed at a position lower than the rotation support shaft P1 of the first rear seat 51. The seat backs 51B and 52B of the rear seats 51 and 52 are respectively seated. When lying down and folded above the cushions 51C, 52C, the left and right seat backs 51B, 52B are configured to have substantially the same height.

  As shown in FIG. 16, front row seats 56 and 57 are disposed in front of the first rear seat 51 and the second rear seat 52, and the front row seats 56 and 57 are arranged in parallel in the vehicle width direction. The seat 57 is composed of a seat 57 and a passenger seat 56. A passenger seat 56 is disposed in front of the first rear seat 51, and a driver seat 57 is disposed in front of the second rear seat 52. Since the second rear seat 52 is disposed behind the driver seat 57 and the occupant Y having a small physique is seated on the second rear seat 52, the front and rear spaces of the driver seat 57 can be set wide.

  As shown in FIG. 5 to FIG. 7 and FIG. 16, the passenger seat 56 and the driver seat 57 are independent left and right separate seats (buckets) having seat cushions 56C and 57C, seat backs 56B and 57B, and headrests 56H and 57H, respectively.・ Sheet).

  As shown in FIG. 16, the passenger seat 56 is disposed so as to be offset from the front of the vehicle with respect to the driver seat 57, while the first rear seat 51 is more than the second rear seat 52 on the rear row seat side. It is arranged so as to be offset forward.

  As shown in FIGS. 5 and 7, front passengers Z1 and Z2, which are larger in size than the passenger Y, can be seated in the passenger seat 56 and the driver seat 57, and the rear seats of the passenger seat side Pa, that is, the first rear seats. Since the rear seat occupant X, which is substantially the same size as the front seat occupants Z1 and Z2, can be seated on the seat 51, the passenger seat 56 and the first rear seat are provided by the front offset structure of the seats 56 and 51 on the passenger seat side Pa. The space before and after 51 is made appropriate.

  Although not shown in FIGS. 5, 6, and 9 to 11 for simplification of the drawings, the space between the kick-up floor portion 4 b of the first kick-up portion 4 and the seat cushion 51 C of the first rear seat 51 is omitted. As shown in FIGS. 18 and 19, a height adjusting mechanism 58 for adjusting the vertical position of the seat cushion 51C is provided.

  As shown in FIGS. 18 and 19, the height adjusting mechanism 58 uses a pair of front and rear screws 59, 59 (only one of which is shown in the drawings) and the rotational force of the rotating shaft 61 of the electric motor 60. A gear box 62 that transmits to the above-described screw 59, sliders 63 and 64 (two sliders 63 and 64 per screw 59), and a bracket 65 attached to the lower surface of the seat cushion 51C, The bracket 65 and the sliders 63 and 64 are provided with a pair of links 66 and 67 for pin connection. A right screw is formed on one side of the screw 59, that is, on the gear box 62 side, and the other side of the screw 59, that is, a bearing. A left-hand thread is formed on the member 68 side.

  When the electric motor 60 is driven in the upward direction of the seat cushion 51C, the rotational force of the electric motor 60 is transmitted to the screw 59 via the gear box 62, and the pair of sliders 63 and 64 move in a direction close to each other. When the seat cushion 51C is raised from the low position shown in FIG. 18 to the high position shown in FIG. 19 via the links 66 and 67, and the electric motor 60 is driven in the downward direction of the seat cushion 51C, the gear box 62 , The rotational force of the electric motor 60 is transmitted to the screw 59, the pair of sliders 63, 64 move away from each other, and the seat cushion 51C is moved to the high position shown in FIG. The seat cushion 51C is vertically moved according to the occupant's physique. Sei becomes possible, in which it is possible to ensure passenger comfort.

  20 is a perspective view showing the structure of FIG. 17 as viewed from the rear of the vehicle, and FIG. 21 is a perspective view of the seat backs 51B and 52B lying down, as shown in FIGS. In addition, the seat back 52B of the second rear seat 52 on the driver's seat side Dr is configured to be fixed to the vehicle body 71 via a reinforcing member 70 extending in the vehicle width direction.

  That is, the driver's seat side Dr of the reinforcing member 70 is buried in the seat back 52B of the second rear seat 52, and the same side Dr of the reinforcing member 70 is fixed to a seat back frame (not shown) of the second rear seat 52. The reinforcing member 70 exposed from the back 52B extends linearly in the vehicle width direction, and the passenger seat side Pa of the reinforcing member 70 is spaced apart from the seat back 51B of the first rear seat 51.

  In addition, tongue pieces 72 and 72 having groove portions 72a are provided integrally or integrally from the left and right ends of the above-described reinforcing member 70 toward the rear. Here, it is desirable that the above-described reinforcing member 70 is formed of a pipe member for the purpose of weight reduction.

  On the other hand, on the vehicle body 71 side, as shown in FIGS. 17, 20, and 21, curved brackets 74 that are in contact with the damper 73 of the rear suspension device 26 and whose both ends are joined to the vehicle body 71 are provided. A member support bracket 75 is joined and fixed to the inside of the bracket 74 in the vehicle width direction.

  And this member support bracket 75 and the tongue piece 72 of the reinforcement member 70 are comprised so that attachment or detachment is possible by the attachment / detachment means 76 shown in FIG. 22, FIG. The structure of the attaching and detaching means 76 and 76 for detachably attaching the tongue pieces 72 and 72 provided at both ends of the reinforcing member 70 to the member support bracket 75 is configured symmetrically between the driver seat side Dr and the passenger seat side Pa. Therefore, FIGS. 22 and 23 show the configuration of the driver's seat side Dr.

  22 shows a state before tightening, and FIG. 23 shows a state after tightening, and the above-described attaching / detaching means 76 includes a hole 77 formed through the member support bracket 75, and the vehicle exterior side of the hole 77. And a release lever 83 integrally formed with a bolt 79, a tightening taper portion 80, a flange portion 81, and an operation lever 82. The release lever 83 is a longitudinal direction of the seat back 52B. It is arranged so as to be perpendicular to the movement trajectory.

  The taper portion 80 is formed so that the bolt 79 side has a small diameter and the flange portion 81 side has a large diameter. The groove 72a of the tongue piece 72 of the reinforcing member 70 is formed in a tapered shape corresponding to the tapered portion 80, and the tapered portion 80 and the tapered groove portion 72a constitute a taper mechanism.

  Then, with the bolt 79 screwed to the nut 78, the tongue piece 72 of the reinforcing member 70 is positioned between the member support bracket 75 and the flange portion 81 of the release lever 83 as shown in FIG. When the release lever 83 is operated in the tightening direction from this state, the tapered portion 80 is pressed against the groove portion 72a and pressed outward in the vehicle width direction, and the state shown in FIG. 23 is obtained, and the release lever 83 on the passenger seat side is operated in the same manner. Therefore, the tongue piece 72 of the reinforcing member 70 can be fixed to the member support bracket 75 by the taper portion 80 for tightening.

  To release the tightening from the tightened state shown in FIG. 23, the release lever 83 may be operated in a loosening direction. After the loosening operation shown in FIG. 22 is completed, the reinforcing member 70 is detached from the release lever 83. Can be made.

Instead of the attaching / detaching means 76 shown in FIGS. 22 and 23, the attaching / detaching means 76 shown in FIGS. 24 and 25 may be used.
24 and 25 has a taper hole 77 corresponding to the taper portion 80 for tightening in the member support bracket 75, and the release lever 83 is shown in FIG. 25 from the state before tightening in FIG. The tongue piece 72 of the reinforcing member 70 is configured to be sandwiched between the member support bracket 75 and the flange portion 81 in addition to the tightening force by the taper portion 80 when operated in the state after tightening. If comprised in this way, size reduction of the magnitude | size of the vehicle width direction of the attachment or detachment means 76 can be achieved. 24 and 25, the same parts as those in FIGS. 22 and 23 are denoted by the same reference numerals.

Incidentally, as shown in FIGS. 17, 20, and 21, recesses 84 and 85 extending in the vehicle width direction are formed on the back surface of the seat back 51 </ b> B of the first rear seat 51 so as to correspond to the reinforcing member 70. Yes.
The upper concave portion 84 is an escape portion that avoids interference between the reinforcing member 70 and the seat back 51B when the seat back 51B of the first rear seat 51 is reclined as indicated by phantom lines in FIG. As shown in FIG. 21, the concave portion 85 of the first rear seat 51 allows the reinforcing member 70 to be prevented from obstructing the cargo space with the reinforcing member 70 when the seat back 51B is folded on the seat cushion 51C. A storage unit for storing.

  In the figure, 90 is a steering wheel, 91 is an instrument panel, 92 is a roof portion, and 93 is a front wheel. In FIG. 1, reference numeral 100 denotes a load mounted in the luggage compartment when the rear row seat back is folded. Further, in the figure, arrow F indicates the front of the vehicle, arrow IN indicates the inside of the vehicle, and arrow OUT indicates the outside of the vehicle.

  Thus, in the vehicle seat mounting structure of the above embodiment, the front row seats 56 and 57 are disposed on the floor panel 2 of the passenger compartment R, and a pair of seats are arranged in parallel behind the front row seats 56 and 57. Further, in the vehicle provided with rear row seats 51 and 52, the floor panel 2 is provided with a kick-up portion 3 raised upward, and the kick-up portion 3 includes the first kick-up portion 4 and the first kick-up portion. The second kick-up part 5 is arranged in parallel with the part 4 in the vehicle width direction and is higher in the height direction than the first kick-up part 4, and the first rear seat 51 is arranged on the first kick-up part 4. And a second rear seat 52 for an occupant Y smaller in size than the occupant X seated on the first rear seat 51 is disposed on the second kick-up portion 5, and the seat back 52B of the second rear seat 52 is mounted on the vehicle body. To 71 It is obtained by detachably secured.

According to this configuration, the above-described kick-up unit 3 includes the first kick-up unit 4 and the second kick-up unit 5 having different heights. It is possible to increase the degree of freedom of layout of seats and auxiliary machines for the space.
Further, since the seat back 52B of the second rear seat 52 is detachably fixed to the vehicle body 71, the detachability can be ensured.

  In short, in a compact body with a low overall height, it is possible to achieve freedom of layout, multi-person riding, attachment / detachment of the seat back of the second rear seat 52, and utility of the rear seat. Further, when the seat back 52B is fixed to the vehicle body 71, the support rigidity of the second rear seat 52 can be ensured.

  In particular, as shown in the embodiment, when the seat backs 51B and 52B of the first and second rear seats 51 and 52 are folded forward and foldable on the seat cushions 51C and 52C, the first rear seat is configured. A mode in which only the 51 seat backs 51B are folded and a mode in which both the seat backs 51B and 52B of the first and second rear seats 51 and 52 are respectively folded can be selected, thereby ensuring the utility of the rear seats. Can do.

  Further, the second rear seat 52 is provided with a reinforcing member 70 that extends in the vehicle width direction and can be fixed to the vehicle body 71 at both ends, and a seat back 52B of the second rear seat 52 is fixed to the reinforcing member 70. is there.

  According to this configuration, since the reinforcing members 70 whose both ends (see the tongue piece 72) can be fixed to the vehicle body 71 are provided, the reinforcement members 70 can improve the vehicle body rigidity, the seat support rigidity, and the side impact resistance. Can be planned.

Further, both ends (see the tongue piece 72) of the reinforcing member 70 are configured to be detachable from the vehicle body 71.
According to this configuration, when the seat back 52B of the second rear seat 52 is folded, the reinforcing member 70 is detached from the vehicle body 71 and moves integrally with the seat back 52B, so that the seat back 52B is formed by folding. The luggage compartment is not obstructed by the reinforcing member 70.

  In addition, the first rear seat 51 and the second rear seat 52 are folded to substantially the same height as shown in the perspective view of FIG. 21 with the seat backs 51B and 52B lying down above the seat cushions 51C and 52C. It is configured to be possible.

  According to this configuration, when the seat backs 51B and 52B of the rear seats 51 and 52 are laid down and folded above the seat cushions 51C and 52C, the seat backs 51B and 52B have substantially the same height. A good cargo room can be secured.

  20 and 21, when the seat back 52B of the second rear seat 52 is folded on the seat cushion 52C, the seat back 51B of the first rear seat 51 is pressed forward by the reinforcing member 70. Since the seat back 51B is folded on the seat cushion 51C, it is not necessary to manually fold the seat back 51B of the first rear seat 51, and the convenience of folding both the seat backs 52B and 51B is improved. Can be planned.

  Further, the rotation support shaft P2 of the second rear seat 52 disposed on the second kick-up portion 5 is positioned lower than the rotation support shaft P1 of the first rear seat 51 disposed on the first kick-up portion 4. It is arrange | positioned so that it may become.

  According to this configuration, the heights of the rear seats 51 and 52 themselves differ depending on the height difference between the kick-up portions 4 and 5, but the heights of the rotation support shafts P1 and P2 are set as described above. When the respective seat backs 51B, 52B are laid down and folded on the seat cushions 51C, 52C, the seat backs 51B, 52B of the pair of rear seats 51, 52 are reliably folded to substantially the same height, and are flat. Can be secured, and the loadability of the luggage can be secured.

  Further, in order to attach / detach the reinforcing member 70 to / from the vehicle body 71, attaching / detaching means 76 having a release lever 83 perpendicular to the movement trajectory of the second back seat 52 in the front-rear direction of the seat back 52B is provided. Is provided with a taper portion 80 for tightening.

  According to this configuration, since the reinforcing member 70 is fastened to the vehicle body 71 by the taper portion 80 of the release lever 83, the fastening rigidity by the release lever 83 can be ensured when the seat back 52B of the second rear seat 52 is fixed.

  Further, a passenger seat 56 is disposed in front of the first rear seat 51, and a driver seat 57 is disposed in front of the second rear seat 52.

  According to this configuration, the space of the front row seat including the driver seat 57 and the passenger seat 56 can be secured in a well-balanced manner while ensuring the detachability of the seat back 52B of the second rear seat 52, and in particular, the first rear seat. It is possible to achieve both 51 passenger safety and usability.

  That is, an occupant X having a large physique can be seated on the rear row seat (first rear seat 51) of the passenger seat side Pa. Generally, the rear row seat (first rear seat 51) of the passenger seat side Pa is frequently used. Since the first rear seat 51) corresponds to the sidewalk side (so-called road shoulder), both safety and usability can be achieved.

  Further, the passenger seat 56 is disposed offset from the driver seat 57 forward.

  According to this configuration, while ensuring the detachability of the seat back 52B of the second rear seat 52, it is possible to secure the passenger seat space and expand the space of the rear seat (first rear seat 51) on the passenger seat side Pa. It is possible to improve the comfort of the occupant X sitting on the first rear seat 51.

  In other words, since the steering wheel 90 is present on the driver seat side Dr, the driver seat 57 cannot be disposed forward, but the space for the passenger seat Pa is ensured by the absence of the steering wheel 90. In addition, the passenger seat 56 can be offset and disposed forward, and thereby the space of the rear seat (first rear seat 51) on the passenger seat side Pa can be increased.

  In addition, vehicle auxiliary machines (see sub tank 36 and main tank 37) having different sizes in the height direction are arranged below the outside of the passenger compartment of the first kick up portion 4 and the second kick up portion 5. Is.

  According to this configuration, since the vehicle auxiliary machines (the sub tank 36 and the main tank 37) are arranged below the first and second kick-up portions 4 and 5, the vehicle auxiliary machines having different sizes are sorted and efficient. Can be packaged.

In the correspondence between the configuration of the present invention and the above-described embodiment,
The first rear seat of the present invention corresponds to the first rear seat 51 of the embodiment,
Similarly,
The second rear seat corresponds to the second rear seat 52,
The seat back rotation support shafts correspond to the rotation support shafts P1 and P2 as hinge centers,
The vehicle auxiliary machine corresponds to the sub tank 36 and the main tank 37,
The present invention is not limited to the configuration of the above-described embodiment.
For example, in the above-described embodiment, the configuration applied to the left-hand drive vehicle is exemplified, but it is needless to say that the above-described structure may be applied to the right-hand drive vehicle.

Side view of a vehicle provided with a seat mounting structure of the present invention The perspective view which shows the lower body structure of a vehicle Plan view of FIG. Bottom view of the main part of the vehicle Side view showing the structure of the passenger side Side view showing reclining state and lying down state of seat back of first rear row seat Side view showing the structure of the driver's seat Perspective view of fuel tank 3 is a cross-sectional view taken along line AA in FIG. BB cross-sectional view of FIG. Sectional view of the part corresponding to the tunnel tank CC sectional view taken along the line CC in FIG. DD sectional view taken along line D-D in FIG. Disassembled perspective view of connect member An exploded perspective view showing another embodiment of the connect member Plan view showing vehicle seat mounting structure Enlarged side view showing the vehicle seat mounting structure Rear view showing the height adjustment mechanism Illustration when the seat cushion is raised The perspective view which shows the structure of FIG. 17 in the state seen from the vehicle back The perspective view which shows the folding state of the substantially same height of a seat back The top view which shows the state before fastening of the attachment / detachment means The top view which shows the state after tightening by the attachment / detachment means The top view which shows the state before the fastening of the attachment / detachment means of another Example. The top view which shows the state after the clamping | tightening by the attachment / detachment means of FIG. Plan view showing conventional seat mounting structure 26 is a side view of the driver side of FIG. Side view of passenger side in FIG.

Explanation of symbols

2 ... Floor panel 3 ... Kick-up part 4 ... First kick-up part 5 ... Second kick-up part 36 ... Sub tank (vehicle auxiliary equipment)
37 ... Main tank (vehicle auxiliary equipment)
51 ... 1st rear seat (1st rear row seat)
52. Second rear seat (second rear row seat)
51B, 52B ... Seat back 51C, 52C ... Seat cushion 56 ... Passenger seat (front row seat)
57 ... Driver seat (front row seat)
70 ... Reinforcing member 71 ... Car body 76 ... Removal means 80 ... Taper part 83 ... Release lever P1. P2 ... Rotating spindle (seatback rotating spindle)
R ...

Claims (9)

In the vehicle in which the front row seat is disposed on the floor panel of the passenger compartment, and the rear row seat in which a pair of seats are arranged in parallel behind the front row seat,
A kick-up part raised upward is provided on the floor panel,
The kick-up portion includes a first kick-up portion, a second kick-up portion that is arranged in parallel with the first kick-up portion in the vehicle width direction and is higher in the height direction than the first kick-up portion,
While disposing a first rear seat on the first kick-up portion,
A second rear row seat for an occupant having a smaller physique than an occupant seated on the first rear row seat is disposed on the second kick-up portion;
A vehicle seat mounting structure in which a seat back of the second rear row seat is detachably fixed to a vehicle body. The second rear row seat is provided with a reinforcing member that extends in the vehicle width direction and whose both end portions can be fixed to the vehicle body,
The vehicle seat mounting structure according to claim 1, wherein a seat back of a second rear row seat is fixed to the reinforcing member. The vehicle seat mounting structure according to claim 2, wherein both ends of the reinforcing member are detachable from the vehicle body. The vehicle seat according to any one of claims 1 to 3, wherein the first rear row seat and the second rear row seat are configured such that a seat back lies down above each seat cushion and can be folded to substantially the same height. Mounting structure. The seat back rotation support shaft of the second rear row seat disposed on the second kick up portion is positioned lower than the seat back rotation support shaft of the first rear seat disposed on the first kick up portion. The vehicle seat mounting structure according to claim 4, arranged as described above. In order to attach / detach the reinforcing member to / from the vehicle body, an attaching / detaching means provided with a release lever orthogonal to the movement trajectory of the seat back of the second rear row seat in the front-back direction is provided
6. The vehicle seat mounting structure according to claim 4, wherein the release lever is provided with a taper portion for tightening. The vehicle seat mounting structure according to any one of claims 1 to 6, wherein a passenger seat is disposed in front of the first rear row seat, and a driver seat is disposed in front of the second rear row seat. The vehicle seat mounting structure according to any one of claims 1 to 7, wherein a passenger seat is disposed offset from the driver seat. The vehicle accessory according to any one of claims 1 to 8, wherein a vehicle auxiliary machine having a different size in the height direction is disposed below the vehicle interior outside of the first kick-up portion and the second kick-up portion. Seat mounting structure.

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