JPS6245973Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) This invention relates to a rear body structure of an automobile in which a trunk room is formed at the rear of the automobile and a gasoline tank is disposed on the lower side of the trunk room.

(Prior Art) Conventionally, in order to store a spare tire in a trunk room, a horizontal tire pan is joined to the bottom of the trunk, and the lower surface of the tire pan is connected to the top of a cross member.
The car body structure described in Publication No. 128216 was found. but,
In this structure, since the spare tire is placed horizontally, there is a problem in that the flat part of the floor is reduced, making it inconvenient to use the trunk room.

As a means of forming a large number of flat portions in the floor as described above, there is also a structure in which the spare tire is stored in an upright position on the rear end panel side at the rear of the trunk room.

In this configuration, a notch is cut out in the center of the rear of the vehicle body floor that forms the bottom of the trunk, and a tire pan with a recess for storing the spare tire in an upright position is connected to this notch, so the flat part of the floor is Furthermore, since there is a large space on the lower side of the flat part, a gasoline tank can be placed in this area, resulting in a rear body structure that makes effective use of space.

However, the above-mentioned tire pan is in a hanging state with the upper edge of the recess connected to the vehicle floor, and the lower part is in an unstable state with no support, making the tire pan prone to falling and deforming in the front-rear direction. In the case of a rear-end collision, the tire pan hits the gasoline tank and damages it, resulting in incomplete protection of the tank and further problems such as muffled noise and discomfort.

(Purpose of the invention) The object of the invention is to provide a rear body structure for an automobile that can increase the rigidity of supporting the tire pan connected in the above-mentioned hanging state and prevent the generation of muffled noise.

(Structure of the invention) This invention consists of a tire pan that forms a recess located in front of the rear end panel and in the center of the rear of the vehicle body floor, and a tire pan that is located in front of the gasoline tank located below the vehicle body floor. The rear body structure of an automobile is characterized in that both ends of a frame member having a hat-shaped cross section are joined to a cross member, and the frame member is also joined to the lower surface of the vehicle floor.

(Effects of the invention) According to this invention, the strength of the tire pan in the longitudinal direction is increased by the frame member connected to the cross member and the vehicle body floor, which reliably prevents tilting in the longitudinal direction. As the rigidity of the tire pan is strengthened, the highly rigid tire pan can reliably prevent damage to the gasoline tank in the event of a rear-end collision.

Moreover, the tire pan and the vehicle body floor are in a state where vibrations are less likely to occur due to the joining of the frame members, thereby making it possible to suppress the occurrence of muffled noise.

(Example) An example of this invention will be described in detail below based on the drawings.

The drawings show the rear body structure of the automobile, and are shown in Figure 1.
In FIG. 2, at the rear of the automobile 1, an opening 6 for a trunk room 5 is formed by a roof panel 2, left and right rear fenders 3, and a rear end panel 4. A rear door 7 is provided so as to be openable and closable.

As shown in FIGS. 3 and 4, the rear vehicle body has a rear frame 8 extending in the front-rear direction at left and right positions. By joining the floor 9, a closed section is formed, and the vehicle body floor 9 forms the bottom surface of the trunk room 5.

On the front side of the aforementioned rear end panel 4,
A notch 10 is formed in the rear center of the vehicle body floor 9, and a tire pan is formed at the edge of the notch 10 with a recess 12 into which a spare tire 11 is inserted approximately halfway in an upright position. The upper edges of 13 are joined.

A gasoline tank 14 is disposed at the front of the tire pan 13 and below the vehicle body floor 9, and is attached to the left and right rear frames 8 or a predetermined attachment portion (not shown). A cross member 15 extending in the left-right direction is located in front of this gasoline tank 14.
has a hat-shaped cross section, and its left and right ends are joined to the left and right rear frames 8, and the opening is joined to the lower surface of the vehicle body floor 9, thereby forming a closed cross section.

The above-mentioned cross member 15 and the above-mentioned tire pan 1
A frame member 17 with a hat-shaped cross section extending in the front-rear direction is located at the center of the upper part of the front surface 16 of the tire pan 13, and both ends of this frame member 17 are connected to the cross member 15 and the front surface 1 of the tire pan 13, respectively.
6, and the open side is further joined to the lower surface of the vehicle body floor 9 to form a closed cross section.

Further, as shown in FIG. 5, a recess 18 is formed in the upper surface of the gasoline tank 14, through which the frame member 17 mentioned above passes.

In FIG. 3, a striker tower 19 is joined to the extended upper part of the left and right rear frames 8 and to the front part of the rear end panel 4, and a hook-type or fork-type locking device 20 is attached to the upper end of the striker tower 19. A striker 21 is attached to the rear door 7 at a position corresponding to the locking device 20 and the striker 21.
By engaging the rear door 7, the rear door 7 is locked.

In addition, the code|symbol 22 is a lower end panel.
Further, the rear frame 8 and the tire pan 13 are connected by a connecting member 23.

The rear body structure configured in this manner has a front cross member 15 on the front surface 16 of the tire pan 13.
Since the frame member 17 which is joined to the body floor 9 is joined to
3, the tire pan 13 is prevented from tilting in the longitudinal direction, and in the event of a rear-end collision, the gas tank 14 is reliably protected due to its high rigidity.Furthermore, the joining of the frame member 17 prevents the tire pan 13 from tilting in the longitudinal direction. The tire pan 13 becomes less likely to vibrate, and the generation of muffled noise is suppressed.

In the above-described embodiment, by cutting out the vehicle body floor 9 on the upper side of the frame member 17 and making use of the hat-shaped cross section of the frame member 17, it can be used as a storage section for a jack.

[Brief explanation of the drawing]

The drawings show an embodiment of this invention, and FIG. 1 is a perspective view of the rear of the automobile. Figure 2 is its side view. FIG. 3 is a sectional view taken along line A-A in FIG. 1. FIG. 4 is a partially cutaway perspective view of the rear vehicle body. FIG. 5 is an enlarged perspective view of the main parts of the vehicle body with the floor removed. 1...Automobile, 4...Rear end panel, 6...
...opening, 7...rear door, 11...spare tire, 12...recess, 13...tire pan, 14...
...Gasoline tank, 15...Cross member, 1
7...Frame member.

Claims (1)

[Scope of claim for utility model registration] A rear door that opens and closes an opening at the rear of the vehicle body, a rear end panel that forms the edge of the rear opening of the rear opening of the vehicle body, and a spare tire that is stored in an upright position in front of the rear end panel. A tire pan that has a recess formed in the center of the rear of the car body floor to be fitted into it, a gasoline tank that is placed below the car body floor in front of the tire pan, and a tire pan that is placed in front of the gas tank and is joined to the bottom surface of the car body floor. The cross member has a cross-section with a hat-like shape and forms a closed section extending in the left-right direction of the vehicle body, and both ends are joined to the tire pan and the cross member, and the cross member is joined to the lower surface of the vehicle floor and extends in the front-rear direction of the vehicle body. A rear body structure of an automobile comprising a frame member having a hat-shaped cross section and forming a closed cross section.