JPH0445990Y2 - - Google Patents

Description

[Detailed explanation of the idea] (Industrial application field) The present invention relates to a rear body structure of an automobile.

(Prior art) Conventionally, as a structure for reducing the deformation of the rear vehicle body in the event of a rear collision, for example,
As disclosed in Japanese Patent No. 283, a vehicle is known in which a member is provided to connect a rear pillar and a side sill located in front of the rear pillar, and a second member is further provided to connect this member to the rear side member. ing.

However, with the configuration described in the above publication, the impact at the time of a rear collision is transmitted from the rear pillar to the side sill, so the distortion caused by the rear collision spreads to the entire vehicle body via the side sill, making repair difficult. .

(Purpose of the invention) Therefore, the purpose of the invention is to provide a rear body structure for an automobile that minimizes the amount of deformation of the car body in the event of a rear-end collision, and allows the deformation of the car body to be localized. .

(Structure of the invention) In order to achieve the above object, the present invention provides a rear pillar reinforcement that extends downward, and also provides an extension of the rear pillar reinforcement and a side part of the rear tire in front of the extended part of the rear pillar reinforcement. and the rear side of the rear tire house where it is located.
It is arranged approximately horizontally in the front-rear direction behind the rear tire and is connected to the rear tire by a gusset that forms a closed cross section with the quarter panel. The gusset is characterized in that its front end is coupled to the rear side of the outer member of the rear tire house, and its rear end is coupled to the extension of the rear pillar reinforcement, respectively.

(Effect of the invention) According to the invention, the downwardly extending portion of the rear pillar reinforcement and the rear side portion of the rear tire house are disposed substantially horizontally in the front-rear direction behind the rear tires, forming a quarter panel. and a gusset that forms a closed cross section, and this gusset has its front end abutted against the rear side of the outer member of the rear tire house, and its rear end abutted against the downward extension of the rear pillar reinforcement. This not only improves the rigidity of the rear body, but also when the rear pillar reinforcement is pushed forward during a rear collision and the rear body is deformed, the front end of the gusset will pass through the outer member of the rear tire house to the rear wheel. Since it contacts the tires, the impact caused by a rear collision is supported by this gusset and the rear tires, thereby minimizing the amount of deformation of the rear vehicle body. Further, in this case, the impact is alleviated by the elasticity of the rear tires, and deformation of the vehicle body can be limited to only the rear vehicle body.

(Example) Examples of the present invention will be described in detail below with reference to the drawings.

Fig. 1 is a schematic side view showing the rear body of a wagon type automobile to which the present invention is applied, and Fig. 2 is a perspective view of its main parts. It is equipped with 4. A rear pillar reinforcement 5 extends in the vertical direction of the vehicle body 1, is joined to the quarter panel 6, forms a closed section 7 together with the quarter panel 6, and extends to the lower part of the vehicle body 1. 5a is a downward extension of this rear pillar reinforcement 5. The quarter panel 6 is joined to the side end portion of the floor panel 8, and a rear side frame 9 having a U-shaped cross section and extending in the longitudinal direction of the vehicle body 1 is provided on the lower surface of the floor panel 8.
are joined together with the floor panel 8 to form a closed cross section 10. Reference numeral 11 denotes a rear tire house provided in front of the extension portion 5a of the rear pillar reinforcement 5, and as is clear from FIG. The rear tire 14 is formed by
It accommodates. The outer member 13 of the rear tire house 11 and the extension portion 5a of the rear pillar reinforcement 5 are connected by a gusset 15. This gusset 15 is disposed in the front-rear direction behind the rear tire 14 and extends almost horizontally, and has a U-shaped cross section as is clear from FIG. It is joined to the outer surface of the panel 6 to form a closed cross section 16. The front end of the gusset 15 is abutted against and coupled to the rear side of the outer member 13 of the rear tire house 11, and the rear end of the gusset 15 is abutted and coupled to the extension 5a of the rear pillar reinforcement 5. Further, in order to increase the rigidity, the top wall 15a of the gusset 15 is attached to the floor panel 8.
Quarter panel 6 so that it is approximately the same height as
is joined to. In addition, 17 (see Figure 4)
is outer member 1 of rear tire house 11
3. A rear fender that is attached to the vehicle body 1 so as to cover the gusset 15 and the rear pillar reinforcement 5.

The above is an example of the configuration of the rear body structure of an automobile according to the present invention.
1 outer member 13 and the quarter panel 6
Since the rear pillar reinforcement 5 and the rear pillar reinforcement 5 are connected by a gusset 15 forming a closed cross section, not only the rigidity of the rear vehicle body is improved, but also the rear pillar reinforcement 5 is As shown by arrow A in the figure, the front end of the gusset 15 is connected to the outer member 1 of the rear tire house 11.
3 to the position where it contacts the rear tire 14, the impact from the rear collision is applied to the rear tire 1.
4 and the gusset 15, thereby minimizing the amount of deformation of the rear vehicle body.

Next, FIG. 5 is a sectional view showing a second embodiment of the present invention in comparison with FIG. A configuration is shown in which closed cross sections 10 and 16 are placed adjacent to each other to improve rigidity. FIG. 6 is a cross-sectional view showing a third embodiment of the present invention, in which, in addition to the configuration shown in FIG.
The bracket 18 is connected to the rear side frame 9 and the quarter panel 6 to form a closed cross section 19. In this embodiment, by arranging the three closed sections 10, 19, and 16 adjacent to each other, the rigidity of the rear vehicle body can be further improved.

[Brief explanation of the drawing]

FIG. 1 is a schematic side view showing the rear body of an automobile to which the present invention is applied, FIG. 2 is a perspective view of the main parts thereof,
3 and 4 are schematic sectional views taken along lines - and - in FIG. 2, and FIGS.
The figure is a schematic cross-sectional view showing another embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Vehicle body, 5... Rear pillar reinforcement, 5a... Extension part, 6... Quarter panel, 7, 10, 16, 19... Closed section, 8... Floor panel, 9... Rear side frame, 11 …
...Rear tire house, 12...Inner member,
13...Outer member, 14...Rear tire,
15... Gasset.

Claims (1)

[Claims for Utility Model Registration] A rear pillar reinforcement 5 for reinforcing the rear pillar 4 of the vehicle body 1 is provided with an extension 5a extending downward, and the extension 5a of the rear pillar reinforcement 5 and the rear The outer member 13 of the rear tire house 11 located on the side of the rear tire 14 is provided with a gusset 15 that is arranged substantially horizontally in the front-rear direction behind the rear tire 14 and forms a closed cross section 16 with the quarter panel 6. The gusset 15 has its front end connected to the rear side of the outer member 13 of the rear tire house 11.
A rear body structure for an automobile, characterized in that the rear ends of the rear pillar reinforcements 5 are joined to the extension portions 5a of the rear pillar reinforcements 5 in a butt manner.