JP2506001Y2 - Rear body structure for vehicles - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to a vehicle rear body structure in a vehicle of a midship layout in which an engine is arranged in the center of the vehicle body.

[Conventional technology]

Conventionally, in a vehicle with a midship layout in which the engine is arranged near the center of the vehicle body, it is difficult to select the location for arranging the fuel tank, and it cannot be installed under the vehicle body to reduce the vehicle height. If it is arranged at the rear part of the vehicle body (for example, the trunk position), the characteristics of the midship layout due to the heavy object being installed near the center of gravity of the vehicle body will be impaired, and there has been a problem that it is difficult to select the arrangement position of the fuel tank.

In order to solve this problem, for example, Japanese Patent Laid-Open No. 64-111526
In a vehicle with a mid-ship layout, the one disclosed in the publication is thin in the vehicle front-rear direction and wide in the vehicle width direction on both sides between the engine and the occupant seat arranged between the rear axle and the occupant seat. It is known that a fuel tank is provided.

[Problems to be solved by the device]

However, in the vehicle of the above-mentioned conventional midship layout, the body side frame extending to the rear part of the vehicle body and the side sill are obliquely joined immediately before the rear wheel, so that the fuel tank cannot be installed on both sides of the vehicle body. In addition, there is a problem that it is difficult to take a large space for installing the fuel tank, the degree of freedom of layout of the fuel tank is low, and it is very difficult to protect the fuel tank from a side collision.

An object of the present invention is to solve the above problems and to provide a rear body structure for a vehicle capable of improving the protection ability of a fuel tank against a collision from the side and improving the flexibility of layout of the fuel tank. Is.

[Means for solving the problem]

In order to achieve the above-mentioned object, the vehicle rear body structure of the present invention is a vehicle in which an engine such as a midship layout is arranged at the rear of the vehicle. The side sill extending to the upper side is raised upward at its rear end to form protectors on the side of the fuel tank, and the upper ends of the left and right protectors are connected by a roll bar.

[Action]

The rear vehicle body structure for a vehicle of the present invention configured as described above secures strength against impact from the side surface of the vehicle body by making the side sill rise at the rear end portion thereof to be a protector on the side of the fuel tank. Further, it is possible to provide a space for installing the fuel tank on both sides of the vehicle body.

Further, by connecting the upper ends of the left and right protectors with the roll bar, the strength of the protectors is increased, so that the safety against the impact from the side surface of the vehicle body is further enhanced.

〔Example〕

 An embodiment of the present invention will be described with reference to the drawings.

Referring to FIG. 1, in a vehicle 1 having a midship layout, side frames 2 extending in the vehicle front-rear direction are arranged on both sides in the vehicle width direction, and the rear end of the side frame 2 rises obliquely upward and rearward. Department
21 is provided, and a rear side frame 22 extends substantially horizontally from the rising portion 21 to the rear of the vehicle body.

A side sill 3 that extends in the vehicle front-rear direction is installed outside the left and right side frames 2 in the vehicle width direction, and a protector 4 that is raised upward in a shape folded back slightly toward the front of the vehicle is provided at the rear end of the side sill 3. The upper end of the protector 4 extends in the vehicle width direction, and the roll bar 5 is provided on the upper part of the vehicle body.
Are connected to both ends of.

The engine 6 is installed between the rear side frames 22 in front of the rear axle, and the transmission 7 is installed in front of the engine 6, although not shown.
Seats for passengers are arranged on both sides of the transmission 7.

The fuel tanks 8 are installed between the rising portions 21 of the left and right side frames 2 and the protectors 4 on the outer side in the vehicle width direction, and the diagonal flanges 80 formed on the outer side surfaces of the fuel tanks 8 form the protector 4. Joined to the sides,
The fuel tank 8 is firmly fixed, and the filler box 81 of the fuel tank 8 is installed in the protector 4.

With this configuration, the space for installing the fuel tank 8 can be secured on both sides of the vehicle body, and the flexibility of the layout of the fuel tank 8 can be increased.

Further, when an impact load is applied from the side surface, the fuel tank 8 is protected by the rising portion 21 of the side frame 2, the rear side frame 22 and the protector 4, so that the fuel tank 8 can be prevented from being crushed and the fuel tank 8 can be prevented. 8 and the filler pipe in the filler box 81 are displaced without changing their relative positions, the deformation of the filler pipe is suppressed, the fuel flow passage is not narrowed by the deformation, and the proper flow of the fuel is prevented. There is no fear of being hindered.

Reference numeral 9 is a cross member that connects the left and right side sills 3, 3 and the left and right side frames 4, 4, B is a bonnet, and T is a wheel.

[Effect of device]

Since the present invention is configured as described above, the following effects can be obtained.

By making the side sill stand up at the rear end to make it a protector on the side of the fuel tank, it is possible to secure the strength against the impact from the side of the vehicle body and prevent the fuel tank from being crushed. A space for installing the fuel tank can be provided, and the flexibility of the layout of the fuel tank can be increased.

Further, by connecting the upper ends of the left and right protectors with the roll bar, the strength of the protectors is increased, so that the safety against the impact from the side surface of the vehicle body is further enhanced.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a sectional view showing an arrangement state of a fuel tank, and FIG. 2 is a sectional view taken along line II-II of FIG. 1 …… Vehicle with midship layout, 2 …… Side frame, 3 …… Side sill, 4 …… Protector, 8 ……
Fuel tank.

Claims (1)

(57) [Scope of utility model registration request] 1. A vehicle in which an engine is arranged at a rear portion of a vehicle body, wherein fuel tanks are installed on both sides of the vehicle body, and side sills extending in the vehicle body front-rear direction are provided on both side portions of the vehicle body so as to rise upward at a rear end portion thereof. And a protector on the side of the vehicle, and the upper ends of the left and right protectors are connected by a roll bar.