JP3323257B2 - Lower body structure of vehicle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lower body structure of a vehicle, and more particularly to a structure for storing a spare tire.

[0002]

2. Description of the Related Art Conventionally, in a wagon type vehicle, a structure in which a spare tire is mounted under a vehicle body floor behind a rear axle is generally adopted as disclosed in, for example, Japanese Utility Model Laid-Open No. 1-161995. I have.

[0003]

However, in order to mount the spare tire behind the rear axle, it is necessary to provide a certain amount of overhang behind the rear axle.
When there is a restriction in the vehicle body design that the length of the rear overhang of the vehicle body needs to be reduced as much as possible in order to increase the wheelbase, a structure in which a spare tire is stored behind the rear axle is not suitable.

[0004] On the other hand, a spare tire storage structure in which a spare tire is hung below the floor of the vehicle body between the front and rear axles has also been conventionally used, but in this case, even if the vehicle body is jacked up at the time of tire replacement, the vehicle is jacked up. However, since the vehicle body portion on which the spare tire is suspended is located at the center in the longitudinal direction of the vehicle body, the lift amount of the vehicle body is small, and particularly in the case of a vehicle body having a bottom floor, it is difficult to remove the spare tire from the vehicle body. was there.

[0005] In view of the above circumstances, an object of the present invention is to provide a lower vehicle body structure of a vehicle that can store a spare tire without being urged by restrictions on the vehicle body design and that can easily store and remove the spare tire. And

[0006]

A lower vehicle body structure of a vehicle according to the present invention is configured as follows.

[0007] According to a first aspect of the present invention, there is provided a vehicle in which a front seat and a rear seat disposed behind the front seat are provided on a floor surface. , the spare tire housing recess is provided in which the spare tire in the recessed downward is accommodated, together with the upper portion of the spare tire housing recess is covered to be openable and closable by a lid member, above the spare tire housing recess Beside the opening
A reinforcing member extending in the vehicle width direction is provided so as to cut,
Both ends of the reinforcing member extend in the front-rear direction on both sides of the vehicle.
It is characterized by being fixed to idsil .

Here, in the invention of claim 2, according to claim 1, the spare tire storage recess is provided so as to be offset in a predetermined vehicle width direction with respect to the center in the vehicle width direction. An exhaust pipe is provided below the floor surface on the side opposite to the one-sided direction of the recess.

According to the third aspect of the present invention, in the first aspect,
In the above, the spare tire storage recess is provided to be offset in a vehicle width predetermined direction with respect to a center in the vehicle width direction,
On the floor surface on the side opposite to the one-sided direction of the spare tire storage recess, a storage recess recessed downward is provided, and passes through a space below the floor surface formed between the two recesses. The exhaust pipe and / or the propeller shaft extend in the vehicle longitudinal direction.

[0010] Further, in the invention of claim 4, the above-mentioned claim 1 is provided.
Wherein a fuel tank is arranged below the floor surface behind the spare tire storage recess.

[0011] According to the invention of claim 5, the above-mentioned claim 1 is provided.
Wherein the spare tire storage recess is set to a depth such that it is flush with the floor surface when the lid member is closed.

Further, according to the invention of claim 6, the above-mentioned claim 1 is provided.
Wherein the spare tire storage recess is configured to be stored in a state where the spare tire is inclined backward and downward.

According to a seventh aspect of the present invention, in the above-mentioned fifth or sixth aspect, the lid member is arranged to be inclined backward and downward.

[0014] According to the invention of claim 8, the above-mentioned claim 1 is provided.
, A rear end of a frame extending rearward from a front portion of the vehicle body is connected to a wall portion forming the spare tire storage recess.

Furthermore, in the invention of claim 9, the first aspect
Wherein the leg portion of the front seat is fixed to the reinforcing member , and a lid member of the spare tire storage recess is attached to be openable and closable.

[0016]

According to the first aspect of the present invention, the spare tire storage recess is formed in the floor surface below the front seat in a downward direction, so that the spare tire storage recess is not prompted by restrictions in vehicle body design. The tires can be stored, and the sealing performance in the vehicle interior can be kept good. Further, since the upper portion of the spare tire storage recess is covered with the lid member, a foot space for the occupant of the rear seat is secured.

Further , a reinforcing portion above the concave portion for storing the spare tire is provided.
The material ensures the rigidity of the body, especially for spare tires
The formation of the storage recess reduces the rigidity of the floor panel.
The rigidity is ensured by the above-mentioned reinforcing members,
Achieving both desirable storage of tires and securing body rigidity
be able to. Further, the reinforcing member extends in the vehicle width direction.
And both ends are fixed to the side sill which is the strength member.
A large reinforcing effect can be expected, especially from the side
Effective against collisions, etc., significantly improving vehicle safety
It has the effect of doing.

According to the second aspect of the invention, the spare tire storage recess is deviated and the exhaust pipe is arranged below the floor surface on the opposite side, so that the floor surface can be reduced and the spare tire can be reduced. Also, the arrangement of the exhaust pipe becomes easy.

According to the third aspect of the present invention, when the spare tire is stored in the spare tire storage recess in a state of being inclined backward and downward, the spare tire is circular, so that the spare tire is circular below the floor of the vehicle body. The space for the exhaust pipe and / or propeller shaft to be extended is enlarged.

According to the fourth aspect of the present invention, the storage of the spare tire and the disposition of the fuel tank are compatible with each other, so that the lowering of the floor surface and the securing of the fuel tank capacity are compatible with each other. In addition, the fuel tank can be protected by the spare tire storage recess.

According to the fifth aspect of the present invention, when the cover member of the spare tire storage recess is closed, it is flush with the floor surface, so that a foot space for the occupant of the rear seat is secured.

According to the sixth and seventh aspects of the present invention, a larger foot space for the occupant in the rear seat is ensured, and the occupant can easily place his or her feet.

According to the eighth aspect of the present invention, the rigidity of the vehicle body floor is ensured by connecting the rear end of the frame extending rearward from the front part of the vehicle body to the wall of the spare tire storage recess. Can be.

According to the ninth aspect of the present invention, the rigidity of the vehicle body is ensured by the reinforcing member extending in the vehicle width direction, which is particularly effective for a side collision.

[0025]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 4 show an outline of a lower vehicle body structure of a vehicle according to a first embodiment of the present invention. FIG. 1 is a side view of the whole vehicle, FIG. 2 is a perspective view of essential parts, and FIG. And FIG. 4 is an exploded perspective view.

As shown in FIG. 1, in a vehicle composed of an FF vehicle in which an engine (not shown) is mounted horizontally on a front portion of a vehicle body 1 to drive a front wheel 2, the vehicle body 1 A flat floor surface 5 is provided extending between the left and right side sills 3 and 4, and three rows of seats 6, 7 and 8 are provided on the floor surface 5.

The seat cushion 6a of the seat 6 in the first row
On the floor surface 5 below, a spare tire storage recess 10 for storing the spare tire 9 in the vehicle interior is provided to one side sill 3 side and directed downward. Of the spare tire storage recess 10 in the vehicle width direction.

A storage recess 11 for storing articles other than the spare tire 9 is provided at a position symmetrical to the spare tire storage recess 10 with respect to the center line in the vehicle width direction. The flat fuel tank 1 has an open rear portion and a rear end extending to the vicinity of the rear wheel 12.
3 is housed in the recess 11.

A cover member 14 for covering the spare tire storage recess 10 is attached.
As is clear from FIG. 4, the rear end is pivotally supported by a hinge 15 provided on the floor 5 along the rear edge of the concave portion 10 and can be opened and closed. A seat cushion 6a of the first row seat 6 is provided on two slide rails 16 fixed on the lid member 14 so as to be slidable back and forth. Therefore, the lid member 14 is opened and closed together with the seat 6 as shown by the one-dot chain line in FIG. It is supposed to be.
A cover member 17 having the same configuration as the cover member 14 is provided also on the other concave portion 11 (see FIG. 3). In addition, the lid members 14 and 17 also have a function as a footrest for the occupant sitting on the second row seat 7.

As is apparent from FIG. 3, the inner walls 10a, 11a of the two recesses 10, 11 in the vehicle width direction are vertically suspended from the floor surface 5 at a predetermined interval. A channel-shaped space 18 extending in the front-rear direction of the vehicle body is formed between 10a and 11a, and an exhaust pipe 19 derived from an engine at the front part of the vehicle body extends rearward through the space 18. Below the recesses 10 and 11 are the bottom walls 1 respectively.
It is closed by 0b, 11b.

Further, the front walls 10c, 1 of the recesses 10, 11
A rear end of a frame 20 extending rearward from the front of the vehicle body 1 substantially parallel to the side sills 3 and 4 inside the side sills 3 and 4 is connected to the recesses 10 and 1c.
1 has a structure capable of preventing a decrease in body rigidity.

FIGS. 5 and 6 show the outline of the lower vehicle body structure of a vehicle according to a second embodiment of the present invention, and FIGS.
In the side view and the cross-sectional view of the entire vehicle shown in correspondence with FIG. 1, the same reference numerals are given to portions corresponding to the first embodiment.

This embodiment is a case of a 4WD vehicle configured to drive the rear wheels 12 in addition to the front wheels 2, and the propeller shaft 21 for driving the rear wheels 12 is provided from the front of the vehicle body. The rear wheel 1 passes through the space 18 between the recesses 10 and 11.
2 differentials (not shown).

In the case of the present embodiment, the spare tire storage recess 10 is configured to store the spare tire 9 in a state of being inclined backward and downward. The space through which the exhaust pipe 19 passes is enlarged. As the spare tire 9 is accommodated in the concave portion 10 in an inclined state, as apparent from FIG. 5, the lid member 14 of the concave portion 10 closes the upper surface of the concave portion 10 in a state of being inclined backward and downward. I have.

Further, in the case of this embodiment, as is apparent from FIG. 6, a bracket 22 is bridged between the bottom walls 10b, 11b of the recesses 10, 11, and provided on the bracket 22 in the middle of the propeller shaft 21. The center bearing 23 is fixed.

FIGS. 7 and 8 are a perspective view of an essential part showing an outline of a lower vehicle body structure of a vehicle according to a third embodiment of the present invention and a sectional view taken along line VIII-VIII of FIG.

The present embodiment is applied to a 4WD vehicle as in the above-described second embodiment, but the spare tire 9 is kept in a horizontal state as in the first embodiment.
0, and an exhaust pipe 19 is disposed above the propeller shaft 21. That is, a pre-silencer 24 is provided in front of the storage recess 11 serving as a small accessory compartment, and an exhaust pipe 19 led out of the pre-silencer 24 extends into the space 18 above the propeller shaft 21. I have.

FIGS. 9 to 13 are diagrams showing the outline of the fourth embodiment of the present invention.

In this embodiment, in addition to the structure of the third embodiment described above, as is apparent from the sectional view of FIG. 9 and the perspective view of FIG. And a bar member 25 for reinforcement extending in The center of the bar member 25 is fixed on the floor surface 5 between the concave portions 10 and 11.

As is apparent from FIGS. 11 and 12, the mounting seat 27 of the leg 26 of the seat cushion 6a is fixed on the bar member 25 by welding, and the lid member of the tire accommodating recess 10 is provided. As shown in FIG. 13, a hinge member 28 for rotatably supporting the cover 14 and the lid member 17 of the accessory storage recess 11 is attached.

By providing the bar member 25 as described above, the rigidity of the vehicle body is ensured, and the configuration is particularly effective for a side collision.

[Brief description of the drawings]

FIG. 1 is a side view of an entire vehicle showing an outline of a first embodiment of the present invention.

FIG. 2 is a perspective view of an essential part of the same.

FIG. 3 is a front sectional view taken along the line III-III of FIG. 2;

FIG. 4 is an exploded perspective view of the same.

FIG. 5 is a side view of the entire vehicle showing an outline of a second embodiment of the present invention.

FIG. 6 is a front sectional view corresponding to FIG. 3;

FIG. 7 is a perspective view of a main part showing a third embodiment of the present invention.

8 is a front sectional view along the line VIII-VIII of FIG. 7;

FIG. 9 is a front sectional view showing a fourth embodiment of the present invention in correspondence with FIG.

FIG. 10 is a perspective view showing the same bar member.

FIG. 11 is an exploded perspective view of the main part.

FIG. 12 is an exploded perspective view of the same.

FIG. 13 is a side sectional view of the same.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Body 3, 4 Side sill 5 Floor surface 6 Seat 9 Spare tire 10 Spare tire storage recess 13 Fuel tank 14, 17 Cover member 18 Space 19 Exhaust pipe 20 Frame 21 Propeller shaft 25 Bar member

Continuation of the front page (72) Inventor Tomohiro Hori 3-1 Shinchi, Fuchu-cho, Aki-gun, Hiroshima Prefecture Inside Mazda Co., Ltd. (56) References JP-A-60-38268 (JP, A) JP, U) Japanese Utility Model Showa 58-29578 (JP, U) Japanese Utility Model Showa 63-74386 (JP, U) Japanese Utility Model Showa 59-124775 (JP, U) (58) Fields surveyed (Int. Cl. ⁷ , (DB name) B62D 43/10 B60N 2/44

Claims (9)

(57) [Claims] 1. A vehicle in which a front seat and a rear seat disposed behind the front seat are provided on a floor surface, wherein the vehicle is recessed downward on a floor surface below the front seat. spare tire housing recess spare tire is housed is provided, along with an upper portion of the spare tire housing recess is covered to be openable and closable by a lid member, the car across the upper opening of the spare tire housing recess
A reinforcing member extending in the width direction is provided, and both ends of the reinforcing member extend on both sides of the vehicle in the front-rear direction.
A lower vehicle body structure of a vehicle fixed to a side sill . 2. The spare tire storage recess is provided so as to be offset in a predetermined vehicle width direction with respect to the center in the vehicle width direction, and a floor surface of the spare tire storage recess which is opposite to the offset direction. The lower body structure of a vehicle according to claim 1, wherein an exhaust pipe is provided below. 3. The spare tire storage recess is provided so as to be offset in a predetermined vehicle width direction with respect to the center in the vehicle width direction, and a floor surface of the spare tire storage recess opposite to the offset direction. Has a storage recess recessed downward, and an exhaust pipe and / or a propeller shaft extends in the vehicle longitudinal direction through a space below the floor surface formed between the recesses. The lower vehicle body structure of a vehicle according to claim 1, wherein: 4. The lower vehicle body structure according to claim 1, wherein a fuel tank is disposed below a floor surface behind the spare tire storage recess. 5. The vehicle according to claim 1, wherein the spare tire storage recess is set to a depth that is flush with the floor surface when the lid member is closed. Lower body structure. 6. The lower body structure of a vehicle according to claim 1, wherein the spare tire storage recess is configured to store the spare tire in a state of being inclined backward and downward. 7. The lower vehicle body structure for a vehicle according to claim 5, wherein the lid member is disposed to be inclined backward and downward. 8. The vehicle according to claim 1, wherein a rear end of a frame extending rearward from a front part of the vehicle body is connected to a wall forming the spare tire storage recess. Lower body structure. 9. The lower vehicle body of a vehicle according to claim 1, wherein the lid member of the reinforcing member leg portions of the front seat is fixed to and the spare tire housing recess is mounted to be opened and closed Construction.