JPS646071B2 - - Google Patents

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention is directed to the rear body structure of an automobile, specifically, to the rear body structure of an automobile, in particular, to the upper part of a low-floor floor plate in order to obtain a flat floor in which a tire house does not bulge into the passenger compartment. Relates to double floor technology fitted with raised floor plates.

(Prior art) Generally, in cab-over type automobiles,
In order to increase the height of the luggage compartment, it is preferable to design the floor to be as low as possible. In this case, a standard low-floor vehicle has a tire house that bulges out into the cargo compartment and a floor plate that avoids the tire house.

This low-floor vehicle has the advantage of being able to lower the floor regardless of the presence of a tire house, but on the other hand, it has the disadvantage that the presence of a tire house becomes an obstacle when loading cargo. (Refer to Utility Model Publication No. 58-11650) Therefore, as a structure to eliminate the drawbacks caused by the existence of the tire house, as shown in FIG. There is one in which a raised floor plate 51 is removably provided to cover the floor from above.

In the conventional structure shown in FIG. 8, there is no need to change the design of the vehicle body, and a flat floor can be obtained, but the tire house inner panel 53, which bulges out in the luggage compartment 52, can be replaced with the raised floor plate 51 as it is. Because of this, the height of the floor surface of the raised floor plate 51 becomes extremely high, which poses a problem in that the height of the luggage compartment 52 is not sufficient and the loading capacity is greatly reduced.

Also, eliminates the bulge of the tire house into the cargo compartment,
As a structure for obtaining a flat floor, the structure shown in FIG. 9 is conventionally known. This conventional structure has a structure in which the Shiretoko 60 is slightly higher than that of a low-floor vehicle, and the wheels 61 are made of small-diameter double tires to prevent the tire house 62 from protruding into the cargo space 63. .

In the conventional structure shown in FIG. 9, the outer wall 64 of the vehicle body
can be shared with the low-floor vehicle, but not only does the inner wall 65 and floor plate 60 of the vehicle body need to be designed separately from the low-floor vehicle, but also special parts such as the housing member 66 and overfender 67 must be designed and manufactured separately. There is little commonality with low-floor vehicle parts, such as the need for
Therefore, there was a problem in that it required a lot of time and effort to design and manufacture, resulting in a disadvantage in terms of cost.

(Object of the Invention) The present invention has been made to solve these conventional problems, and its purpose is to install the raised floor plate forming the flat floor at the lowest possible height while still allowing it to be used as a low-floor vehicle. By standardizing parts, the effort and cost required for design and manufacturing can be saved, and a space that can be used as a storage space is created between the low floor floor plate and the high floor floor plate. The purpose is to provide a rear body structure.

(Structure of the Invention) That is, in order to achieve this object, the rear body structure of an automobile of the present invention has a lower part of the inner wall of the vehicle body bulging outward from a bent portion to form a large-diameter tire house outer panel. , an upper inner wall of the tire house whose upper edge is joined to the bent portion of the inner wall of the vehicle body, and which hangs downward from the bent portion; and a horizontal wall extending inward from the lower edge of the upper inner wall of the tire house; and a tire house lower inner wall extending downward from the inside of the vehicle body of the horizontal part and from the front and back, the lower edge of which is joined to the notch edges for the tire house formed on the left and right sides of the low floor floor plate. A structure in which the house inner panel is provided approximately symmetrically on the left and right sides of the rear part of the vehicle compartment, and the high floor floor plate is installed on the horizontal part, forming a space between it and the low floor floor plate. And so.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

In describing embodiments, a case will be described in which the rear body structure of the present invention is provided in a cab-over type automobile.

FIG. 1 shows a schematic side view of a cab-over type automobile equipped with the rear body structure of this embodiment.
In the figure, 1 is a vehicle body, in which an engine room 2 is arranged at the lower front, a seat 3 is arranged above the engine room 2, a luggage compartment 4 is formed behind the seat 3, and the luggage compartment The floor No. 4 is formed into a one-box type having a double floor structure of a floor plate 5 for a low floor and a floor plate 6 for a high floor. Note that 7 is a step.

Next, the rear body structure of this example is shown in Figures 2 to 6.
This will be explained using figures.

In the figure, 8 is a rear tire house installed approximately symmetrically on the left and right sides of the rear part of the vehicle, including a large-diameter tire house outer panel (hereinafter referred to as the "large-diameter outer panel") 9 and a small-diameter tire house inner panel (hereinafter referred to as the "small-diameter inner panel"). ) 10 and is formed to cover the upper part of the small-diameter wide single tire 11. In this case, the large-diameter outer panel 9 is formed by bulging the lower part of the inner wall 12 of the vehicle body outward from the bent portion 13, as shown in FIG.

The small-diameter inner panel 10 also includes a tire house upper inner wall 14 hanging downward from the bent portion 13;
It has a horizontal part 15 extending inward from the lower edge of the upper inner wall 14 of the tire house, and a lower inner wall 16 of the tire house extending downward from inside the horizontal part 15 and from the front and back of the vehicle body, and , the upper edge 17 of the upper inner wall 14 of the tire house is connected to the inner wall 12 of the vehicle body.
The rear tire house 8 is formed by welding the lower edge 18 of the lower inner wall 16 of the tire house to the notch edges 19 for the tire house formed on the rear left and right sides of the low floor floor plate 5. It is something that The lower end of the large-diameter outer panel 9 is welded to the lower edge of the outer wall 20 of the vehicle body. Reference numeral 21 denotes side members that serve as attachment members for the low-floor floor plate 5, and are provided on both sides of the vehicle body in the longitudinal direction of the vehicle body.

In addition, the above-mentioned low-floor floor plate 5 has the above-mentioned tire house notch edges 10 formed on both rear sides, and
A step notch edge 22 is formed on the front left side, and a transmission inspection notch edge 23 is formed at the front center.

Next, the raised floor board 6 is attached to the low floor floor board 5 via floor joists 24, with both rear sides thereof being constructed on the horizontal portion 15 of the small-diameter inner panel 10. A step notch edge 25 and an inspection notch edge 26 are formed on the raised floor plate 6 in correspondence with the step notch edge 22 and the transmission inspection notch edge 23 formed on the low floor plate 5, respectively. At the same time, a battery storage opening 27 is formed, and lids 28 and 29 are removably attached to the storage opening 27 and the inspection notch 26, respectively.

The floor joists 24 are formed at approximately the same height as the height from the upper surface of the low floor floor plate 5 to the upper surface of the horizontal section 15, and a plurality of channel-shaped members are used, and these are connected to the low floor. By fixing between the floor board 5 for a high floor and the floor board 6 for a high floor, a space 30 is formed above the floor board 5 for a low floor, and a double floor structure is formed in which the floor board 6 for a high floor is attached. Note that the space between the step notch edges 22 and 25 and the space between the rear edges 31 and 32 are closed by channel members 33 and 34 in order to provide a slide door and a back door.

Therefore, in the rear vehicle body structure of this embodiment, the raised floor plate 6 is located at the horizontal portion 1 formed on the small-diameter inner panel 10.
5, the mounting position of the raised floor plate 6 is lowered by the amount lowered by the horizontal portion 15, and a flat floor can be obtained by the raised floor plate 6. Therefore, even though it has a flat floor, the floor height can be made lower than that of the conventional structure shown in FIG. 8, and the height of the luggage compartment 4 can be secured widely.

In addition, parts used for low-floor vehicles, ie, vehicle body inner wall 1
2. The outside wall 20 of the vehicle body, the large outside panel 9, and the low-floor floor plate 5 can be used as common parts, and therefore, the specifications of the standard low-floor vehicle are modified and used, except for the small-diameter inside panel 10. This allows for significant savings in the effort and cost required for design and production.

When manufacturing a standard low-floor vehicle, a large-diameter tire house inner panel 35 as shown in FIG. 7 is used instead of the small-diameter inner panel 10.
The flange 37 formed on the upper edge is joined to the bent portion 13 of the inner wall 12 of the vehicle body, and the lower edge 38 of the inner wall 36 of the tire house is joined to the notch edge 19 for the tire house of the floor plate 5 for low floor. It turns out.

In addition, when the vehicle is made into a high-floor vehicle as in the embodiment, a space 30 is formed between the low-floor floor plate 5 and the high-floor floor plate 6, so if this space 30 is used, the vehicle shown in the embodiment In this way, the space below the battery storage opening 27 can be used as a battery storage section, and it is also possible to provide a storage box or the like by providing a lid in the channel shaped members 33 and 34.

Although one embodiment of the present invention has been described above with reference to the drawings, the specific configuration of the present invention is not limited to the above-described embodiment.

For example, in the embodiment, a case where the rear body structure of the present invention is provided in a cab-over type automobile is taken as an example, but the rear body structure of the present invention can be provided not only in a cab-over type automobile but also in a station wagon or the like. It may be applied not only to freight vehicles but also to buses, etc.

Furthermore, in the embodiment, the floor joists 24 are used to attach the raised floor plate 6, but as shown in FIG. Furthermore, it is also possible to install the bracket 39 and the floor joist 24 in combination.

(Effects of the Invention) As described above, according to the present invention, it is possible to obtain a flat floor in which the tire house does not bulge into the vehicle interior, while still reducing the height of the floor surface. Furthermore, since many parts are common to those for low-floor vehicles, the effort and cost required for designing and manufacturing using the specifications of low-speed vehicles can be saved. Furthermore, the space between the low-floor floorboard and the high-floor floorboard can be used as various storage areas.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram showing a cab-over type automobile equipped with a rear body structure according to an embodiment of the present invention, and FIG.
FIG. 6 shows the rear vehicle body structure, FIG. 2 is a perspective view of a low-floor floor plate, FIG. 3 is a perspective view of a floor joist, and FIG. 4 is a perspective view of a high-floor floor plate. FIG. 5 is a partial cross-sectional view of the rear vehicle body structure, and FIG. 6 is a perspective view showing the small-diameter tire house inner panel.
Further, FIG. 7 is a perspective view showing an inner panel of a large-diameter tire house exclusively for low-floor vehicles, and FIGS. 8 and 9 are sectional views showing the conventional structure. 1... Vehicle body, 4... Luggage compartment (vehicle compartment), 5... Floor plate for low floor, 6... Floor plate for high floor, 8... Rear tire house, 9... Large diameter tire house outer panel, 10
...Small diameter tire house inner panel, 12... Vehicle body inner wall, 13... Bent part, 14... Upper inner wall of tire house, 15... Horizontal part, 16... Lower inner wall of tire house, 17... Top Edge, 18...lower edge,
19... Notch edge for tire house, 20... Vehicle body outer wall, 24... Floor joist.

Claims (1)

[Scope of Claims] 1. A lower part of the inner wall of the vehicle body bulges outward from the bent portion to form a large-diameter tire house outer panel, an upper edge is joined to the bent portion of the inner wall of the vehicle body, and the lower portion of the inner wall of the vehicle body bulges outward from the bent portion. an inner wall of the upper part of the tire house hanging downward from the curved part; a horizontal part extending inward from the lower edge of the inner wall of the upper part of the tire house; A small-diameter tire house inner panel is provided approximately symmetrically on the left and right sides of the rear of the vehicle compartment, and has a tire house lower inner wall whose lower edge is joined to the notch edges for the tire house formed on the left and right sides of the floor plate for the low floor. A rear body structure for an automobile, characterized in that a floor plate is installed on the horizontal portion with a space formed between the floor plate and the low floor plate.