JP3314026B2 - Truck cab floor structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a truck cab floor structure.

[0002]

2. Description of the Related Art FIG. 5 shows an example of a pickup truck cab. In the drawing, reference numeral 1 denotes a floor constituting the floor of the cab 2, 3 denotes a back panel constituting the back of the cab 2, and 4 denotes a reinforcement of the cab 2. It is a cross member laid in the width direction of the cab 2.

FIG. 4 shows details of a conventional floor structure where a floor 1, a back panel 3 and a cross member 4 are fastened.

[0004] Near the end of the floor 1 on the back panel 3 side, a horizontal flat portion 1a in front of the cab 2 and a flat slope 1a are formed so as to be connected to the flat portion 1a and rise toward the back panel 3 side. An inclined portion 1b, a flat portion 1c provided horizontally from the upper end of the inclined portion 1b toward the back panel 3, and an angle of 90 degrees downward at an end of the flat portion 1c on the back panel 3 side. A vertical wall portion 1d that hangs downward and a flange 1e that is bent at the lower end of the vertical wall portion 1d at an angle of 90 degrees and protrudes horizontally toward the rear of the cab 2.

The cross member 4 is formed in a trapezoidal shape with a substantially lower cross-section opening at the bottom, extending along the inclined portion 1b of the floor 1 to the vicinity of the upper end of the inclined portion 1b and having the inclined portion 1b.
And an inclined portion 4b which is bent near the upper end of the inclined portion 4a and which is inclined more steeply toward the back panel 3 than the inclined portion 4a.
A flat portion 4c connected to the upper end of the inclined portion 4b above the flat portion 1c of the floor 1 and extending horizontally toward the back panel 3;
And an inclined portion 4d provided at a downward slope from the vicinity of the end portion on the back panel 3 side, and is bent at the lower end of the inclined portion 4d and droops along the vertical wall portion 1d of the floor 1 to halfway in the height direction along the vertical wall portion 1d. The vertical wall portion 4e is provided. Thus, the vertical wall portion 4e of the cross member 4 is in contact with the surface of the vertical wall portion 1d of the floor 1 on the rear side of the cab 2.

The back panel 3 has an upper vertical wall portion 3a and an inclined portion 3b having a slight length inclined downward from the lower end of the vertical wall portion 3a to the rear of the cab 2 and a downwardly extending lower end from the lower end of the inclined portion 3b. The vertical wall portion 3c is provided, and a surface of the lower end of the vertical wall portion 3c facing the vertical wall portion 4e is in contact with the vertical wall portion 4e.

The inclined portion 4a of the cross member 4 and the floor 1
The overlapping portion of the inclined portion 1b is joined by spot welding 5, and the overlapping portion of the vertical wall portion 1d of the floor 1, the vertical wall portion 4e of the cross member 4, and the vertical wall portion 3c of the back panel 3 is joined by spot welding 6. ing.

Thus, the inclined portion 4b, the flat portion 4c, the inclined portion 4d of the cross member 4 and the flat portion 1c of the floor 1
The cab has a sufficient strength since the box structure is formed by the.

Further, the lower end edge of the vertical wall portion 4e of the cross member 4 and the lower end edge of the vertical wall portion 3c of the back panel 3 are located at substantially the same height, and both edges are entirely covered by the sealer 7, so that the cab chamber is provided. In addition, it is possible to prevent intrusion of water into the vertical wall portions 3c and 4e and to prevent rusting at the lower edge portions.

Further, since the lower end of the flange 1e of the floor 1 is bent horizontally, the end of the flange 1e interferes with the fuel tank 8 arranged at the lower part of the floor 1 when a vehicle collides. Therefore, damage to the fuel tank 8 can be prevented.

[0011]

However, in the conventional truck cab floor structure, the end of the horizontal flange 1e of the floor 1 cannot be covered by the sealer 7, which may cause rusting. When the fuel tank 8 is provided below the flange 1e, the flange 1e is bent horizontally so as not to damage the fuel tank 8 at the time of a collision of the vehicle.

In view of the above situation, the present invention eliminates the sheet metal edge exposed outside the cab chamber, prevents rust on the sheet metal edge at the rear end on the back panel side of the floor, and prevents the press step from increasing. It is another object of the present invention to provide a truck cab floor structure in which even if a fuel tank is provided under the floor, the fuel tank is not damaged by a vehicle collision.

[0013]

According to the present invention , a fuel tank is provided at a lower position.
Back panel, floor, and cloth
The truck cab floor structure to which the members are fastened
A closed curved box structure is formed by the floor and the cross member so as to be positioned above the fuel tank, and the lower member forming the box structure is formed substantially flat.
The vertical wall portion extending upward by bending the back panel side end of the floor and the cross member is formed, and the upper end of the vertical wall portion of the floor and the cross member is placed in the cab chamber more than the vertical wall portion of the back panel. floor is positioned inside the cross member, the vertical wall portion of the back panel are joined by spot welding, the vertical wall lower end of the back panel that is exposed to the outside the cab compartment, the vehicle
It is covered with a sealer extending in the width direction .

Therefore, according to the present invention, the rusting can be reliably prevented by eliminating the sheet metal edge exposed to the outdoor.
Also, since the horizontal bending of the floor flange is not performed, the pressing process can be omitted, and even if the fuel tank is arranged below the floor, even if the vehicle collides because there is no downward flange of the floor above the fuel tank, the lower part of the floor can be used. There is no risk of damaging the fuel tank.

[0015]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a longitudinal sectional view showing an example of an embodiment of a floor structure of a truck cab according to the present invention.

In the embodiment of the present invention, the back panel 3 has substantially the same structure as the conventional one shown in FIG. 4, but the floor 1 and the cross member 4 are different from the conventional one shown in FIG. The structure is different.

That is, the vicinity of the end of the floor 1 on the back panel 3 side is a horizontal flat portion 1a in front of the cab 2 (see FIG. 5), and is connected to the flat portion 1a and rises gradually toward the back panel 3 side. A formed inclined portion 1b,
A flat portion 1c provided horizontally from the upper end of the inclined portion 1b toward the back panel 3 side, and the flat portion 1c is bent upward at a 90 ° angle and upward at the end of the flat portion 1c on the back panel 3 side. Vertical wall 3c of the back panel 3
A vertical wall portion 1f extending to the vicinity of the upper end is provided.

The cross member 4 is located above the floor 1 in the case of the prior art shown in FIG. 4, but is located below the floor 1 in the present embodiment.

That is, the cross member 4 is formed in a single trapezoidal shape having a substantially upper cross-section opening at the top, extending along the inclined portion 1b of the floor 1 to a middle portion of the inclined portion 1b, and on the lower surface of the inclined portion 1b. An inclined portion 4f to be contacted, an inclined portion 4g bent at the upper end of the inclined portion 4f and formed to have a downward slope toward the back panel 3, and a lower end of the inclined portion 4g below the flat portion 1c of the floor 1. And a flat portion 4h that extends horizontally toward the back panel 3 and is bent at an angle of 90 degrees at an end of the flat portion 4h on the back panel 3 side and extends upward to have the upper end of the floor 1. A vertical wall portion 4i is provided which extends to near the upper end of the vertical wall portion 1f. Thus, the upper end side of the vertical wall portion 4i of the cross member 4 is connected to the vertical wall portion 1f of the floor 1 and the vertical wall portion 3 of the back panel 3.
It is in contact with the surface of c.

The inclined portion 1b of the floor 1 and the cross member 4
The overlapping portion of the inclined portion 4f is joined by spot welding 5, and the overlapping portion of the vertical wall portion 1f of the floor 1, the vertical wall portion 4i of the cross member 4, and the vertical wall portion 3c of the back panel 3 is joined by spot welding 6. ing.

In this embodiment, the inclined portion 1b and the flat portion 1c of the floor 1 and the inclined portion 4 of the cross member 4 are provided.
Since the box structure is formed by g, the flat portion 4h, and the vertical wall portion 4i, the cab has sufficient strength.

The lower edge of the vertical wall 3c of the back panel 3 is covered with a sealer 7, and the upper edges of the vertical wall 1f of the floor 1 and the vertical wall 4i of the cross member 4 are placed in the cab chamber. Since it is located, it is possible to prevent water from entering the cab and to prevent rust at the lower edge of the vertical wall portion 3c of the back panel 3. Of course, the vertical wall 1 of the floor 1
Since the upper edges of the f and the vertical wall 4i of the cross member 4 are located in the cab chamber, no rust is generated on both upper edges.

Further, since the floor 1 does not have a downward flange near the fuel tank 8 and has the flat portion 4h, there is no possibility that the flange damages the fuel tank 8 even if the vehicle collides. Furthermore, since a horizontal processing portion for the flange is not required, the pressing step can be omitted and the cost can be reduced.

FIG. 2 is a longitudinal sectional view showing another embodiment of the floor structure of the truck cab according to the present invention.

The present embodiment is largely different from the embodiment shown in FIG. 1 in that a slight inclined portion 4j which rises toward the front of the cab at an intermediate position in the vertical direction of the vertical wall portion 4i.
The other configuration is substantially the same as that shown in FIG. The inclined portion 4j serves as a mark when applying the sealer 7 and also serves as a guide.

FIG. 3 shows still another example of the embodiment of the present invention. Similar to the conventional example shown in FIG. 4, the cross member 4 is disposed above the floor 1, but the back panel 3 of the floor 1 is provided. The shape of the side and the shape of the cross member 4 are different from those of the conventional example.

That is, the vicinity of the end of the floor 1 on the back panel 3 side is a horizontal flat portion 1a on the front side of the cab 2,
An inclined portion 1g which is connected to the flat portion 1a and slightly rises over a predetermined range toward the back panel 3 side.
An inclined portion 1h formed downwardly from the upper end of the inclined portion 1g toward the back panel 3; a flat portion 1i provided horizontally from the lower end of the inclined portion 1h toward the back panel 3; The vertical wall 1j is bent upward at an angle of 90 degrees at the end of the portion 1i on the back panel 3 side and extends upward to a required position below the vertical wall 3c of the back panel 3, and below the vertical wall 3c. An inclined portion 1k having a slight length that is inclined upward from the upper end of the vertical wall portion 1j toward the front of the cab 2, and a vertical wall portion 11 extending upward from the upper end of the inclined portion 1k along the vertical wall portion 3c of the back panel 3. The vertical wall portion 11 is arranged such that the vertical cab portion 2
It is located on the front side.

The cross member 4 is composed of an inclined portion 1g of the floor 1.
4j that extends in parallel with the lower end and the vicinity of the lower end contacts the upper surface of the inclined portion 1g, and the upper end of the inclined portion 4j is located above the inclined portions 1g and 1h, the flat portion 1i, and the vertical wall portion 1j of the floor 1. A flat portion 4k that is contacted and extends horizontally toward the back panel 3 and a vertical wall portion 41 that is bent 90 degrees at the tip of the flat portion 4k on the back panel 3 and extends upward. Thus, the vertical wall portion 41 of the cross member 4 is in contact with the front surface of the cab 2 of the vertical wall portion 11 of the floor 1.

The overlapping portion of the inclined portion 4j of the cross member 4 and the inclined portion 1g of the floor 1 is joined by spot welding 5.
The vertical wall 41 of the cross member 4, the vertical wall 11 of the floor 1,
The overlapping portion of the vertical wall portion 3c of the back panel 3 is spot-welded 6
It is joined by.

In the floor structure of the truck cab shown in FIGS. 2 and 3, the same operation and effect as in FIG. 1 can be obtained.

That is, in both FIG. 2 and FIG.
Since the box structure is formed by the floor 1 and the cross member 4, the cab has sufficient strength.

The lower edge of the vertical wall portion 3c of the back panel 3 is covered with a sealer 7, and the vertical wall portions 1f and 11 of the floor 1 and the vertical wall portions 4i and 4
1 is located in the cab so that water can be prevented from entering the cab and the vertical wall 1 of the floor 1
f, 11 and the vertical wall portions 4i and 4l of the cross member 4 as well as the lower end edge of the vertical wall portion 3c of the back panel 3 as well as the upper edge portion can be prevented.

Further, since the floor 1 does not have a vertical flange near the fuel tank 8, there is no danger that the flange will damage the fuel tank 8 even if the vehicle collides. Since it is unnecessary, the pressing step can be omitted, and the cost can be reduced.

It should be noted that the present invention is not limited to the above-described embodiment, and it is needless to say that various changes can be made without departing from the scope of the present invention.

[0036]

According to the floor structure of the truck cab of the present invention, it is not necessary to provide a horizontal flange portion, so that rusting of the sheet metal edge portion at the rear end of the floor on the back panel side can be reliably prevented. In addition to being able to reduce the cost by omitting the pressing process at the time of manufacture, the strength is strong even in the event of a collision, and even if the fuel tank is below the floor, the fuel tank is damaged. Various excellent effects such as a low risk of occurrence can be obtained.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of an example of an embodiment of a floor structure of a truck cab according to the present invention.

FIG. 2 is a longitudinal sectional view of another example of the embodiment of the floor structure of the truck cab of the present invention.

FIG. 3 is a longitudinal sectional view of still another example of the embodiment of the floor structure of the truck cab of the present invention.

FIG. 4 is a longitudinal sectional view showing an example of a floor structure of a conventional truck cab.

FIG. 5 is a perspective view showing a schematic structure of a truck cab.

[Explanation of symbols]

 Reference Signs List 1 floor 1f, 1l vertical wall 3 back panel 3c vertical wall 4 cross member 4i, 4l vertical wall 6 spot welding 7 sealer

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B62D 25/20 B62D 33/06

Claims (1)

(57) [Claims] 1. A back-up having a fuel tank disposed below.
Trucks connecting panels, floors and cross members
The cab floor structure, a closed curved box structure with a floor and a cross member is provided above the fuel tank.
Form as well as form a box structure
The lower member is formed substantially flat, the vertical wall portion extending upward by bending the back panel side end of the floor and the cross member, and the upper end of the vertical wall portion of the floor and the cross member is formed on the back panel. The vertical wall of the floor, cross member, and back panel are spot-welded by positioning the lower wall of the back panel exposed to the outside of the cab in the vehicle width direction. A floor structure of a truck cab, which is covered with an extending sealer.