JPS594823Y2 - fuel tank - Google Patents

Description

[Detailed explanation of the idea] This invention relates to an automobile fuel tank.

As is well known, a fuel tank for an automobile is fixed to a part of the vehicle body, but in this case, due to the structure of the automobile, it is often installed in a space that is rarely used under normal circumstances.

For this reason, freight vehicles are often fixed to the body frame of the lower part of the vehicle body, but this is dangerous as it can be damaged by hitting protrusions on the road side.

In this invention, the fuel tank is attached to a corner of the floor of the truck bed, and has a shape that allows it to cover the entire upper side of the wheel house that protrudes from the floor of the truck bed.

This invention has the advantage that the fuel tank can be safely installed inside the loading platform without causing any displacement, and the dead space created by the wheel house on the floor of the loading platform can be effectively utilized.

The purpose of this invention is to provide a fuel tank that can be attached to the floor of an automobile's cargo bed and that can also improve the conventional dead space.

This invention will be explained below with reference to the accompanying drawings.

FIG. 1 shows a state in which a fuel tank 1 to which this invention is applied is attached to a loading platform 2 of a freight vehicle.

A wheel house 4 protrudes from the corner of the floor surface 3 of the loading platform, and a fuel tank 1 is placed on top of this.

This fuel tank 1 has a housing shape that is long in the front and back direction, and has an upper wall 11. Each portion of the bottom wall 12 and the side walls 13 is formed by two press-molded iron plates, that is, an upper molded plate A and a lower molded plate B.

The upper molded plate A has a shape in which the upper wall 11, the longitudinal side walls 131°, and a portion of the front and rear side walls 132 are integrally molded,
On the other hand, the lower molded plate B includes the bottom wall 12 and the longitudinal side walls 131.
It has a shape in which a portion of each of the front and rear side walls 132 is integrally molded.

Then, the forming plates A and B are overlapped so as to surround the fuel storage chamber 14, and the flanges 16 formed on the entire periphery of the forming plates A and B are hermetically welded, thereby forming the casing-shaped fuel tank 1. (See Figure 2).

The bottom wall 12 formed by this lower molded plate B has a flat part 121 that widens at the front and back and narrows at the center, and this flat part 1
21 and an upwardly concave recessed fitting part 122 formed on the side opposite to the center of the loading platform.

Furthermore, the side wall 131 of the lower molded plate B has a flat portion 121. It extends from the recessed fitting part 122 and is formed in the shape of an upright wall that stands upright upward.

In this way, in this fuel tank 1, a fitting recess 15 is formed at the lower center of the fuel tank 1 by the recessed fitting part 122 as a space for receiving the wheel house, and the flat part 121 is located on the upper side of the floor surface 3. will be placed on.

On the other hand, the upper wall 11 formed by the upper molded plate A has a flat portion 121. In other words, a horizontal plane S parallel to the loading platform floor 3
is formed.

Furthermore, an upper flange 162 is formed on the side of the upper wall 11 opposite to the center of the loading platform, which stands upright with respect to the horizontal plane S and serves as a joint with the lower molded plate B.
2 is bolted to the side fence 5 of the automobile loading platform 2 to fix the fuel tank 1.

The lower flange 161, which forms the joint between the longitudinal side wall 131 of the upper molded plate A and the bottom wall 12 of the lower molded plate B, has a shape extending horizontally from the flat part 121 of the bottom wall. is also bolted to the loading platform floor 3,
It is configured to fix the fuel tank 1.

In the front and rear side walls 132 and 132, the side flanges 163 that are inclined in the vertical direction are the upper and lower flanges 161.
．． 162 consecutively provided.

In FIG. 2, reference numeral 7 is a fuel supply pipe for supplying fuel from the outside to the storage chamber 14, and reference numeral 8 is a separator tank for maintaining the liquid level of the fuel tank at atmospheric pressure.

This separator tank 8 is disposed above the fuel tank 1, and is connected to a communication pipe 81 and a return pipe so that it can receive the blown fuel from the fuel tank 1 when the vehicle body is tilted, and return it to the original fuel tank 1. 82.

In this embodiment, a fitting recess 15 is provided at the lower center of the fuel tank 1.
This forms a wheel house 4 that protrudes from the floor surface.
Since it fits on the entire upper side and covers this wheel house, it can be reliably attached to the loading platform 2 without causing any displacement, and by forming the front and rear bottom wall flat parts 121 large, A large-capacity fuel tank 1 that can be safely installed can be constructed.

Furthermore, as shown in FIG. 2, although the center of the flat part 121 of the bottom wall 12 is narrowed, the bottom wall 12 of a constant height is formed continuously in the front-rear direction, so that the fuel flow is reduced. No stagnation points occur.

The fuel tank 1 is installed using the space above a wheel house 4 at the corner of the bottom surface 3 of the loading platform and a part of the flat floor surface 3 before and after the wheel house. Due to its curved surface, it has not been used effectively as a loading platform in the past and has often been left as dead space.

Therefore, even if the loading space is used by attaching the fuel tank 1, the loading platform space, which has conventionally been effectively utilized, will not be significantly reduced.

Furthermore, since the upper wall 11 of the fuel tank 1 to which this invention is applied is formed as a horizontal surface S having an upper space,
This horizontal surface S can be effectively used as the floor surface of a newly added loading platform.For example, the seat 6 can be installed as a seat as shown by the dashed line in FIG. 2 on the horizontal surface, or the space above the horizontal surface S can be used. It can also be used as a luggage stand.

This invention can be modified as long as the fuel tank 1 is formed with a recessed part in the bottom wall of the lower side of the storage chamber so as to cover the entire upper side of the wheel house protruding from the loading platform of the truck.

In the above description, the case where the fuel tank 1 is attached to the loading platform 2 that is open from above has been described, but the fuel tank 1 can also be installed to the loading platform of a pan-shaped automobile or the like with the wheel house 4 protruding from the flat floor surface 3. .

[Brief explanation of drawings]

Fig. 1 is a perspective view showing the installation state of a fuel tank to which this invention is applied, Fig. 2 is a sectional view taken along line X-X of Fig. 1, and Fig. 3 is a sectional view taken along line Y-Y of Fig. 1. be. 1...Fuel tank, 2...Car bed, 3...
Floor surface, 4... Tire house, 11... Top wall, 12.
... Bottom wall, 121 ... Plane part, 122 ... Recessed fitting part,
13...Side wall, S...Horizontal surface.

Claims (1)

[Scope of utility model registration request] A fuel storage chamber attached to a corner of the cargo bed floor of a freight vehicle includes a bottom wall on the lower side of the storage chamber, a side wall extending upward from the bottom wall, and an earthen wall forming a horizontal surface on the upper side of the storage chamber. The bottom wall has a recessed part that protrudes from a part of the floor surface of the cargo vehicle's loading platform and covers the entire upper side of the wheel house, and a flat part that contacts the upper side of the floor surface of the loading platform at the front and rear of the wheel house. A fuel tank characterized in that it has a configuration having: