JPH067025Y2 - Car body structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Use) The present invention relates to a vehicle body structure of, for example, a lorry having an upright cross member.

(Prior Art) For example, some cab-over type freight vehicles such as shown in FIG. 3 have an upright cross member 2 projecting toward a passenger compartment 1. That is, the upright cross member 2 is horizontally provided behind the floor of the passenger compartment 1 and, as shown in FIG. 4, the lower end of the front surface of the rear end panel 4 that separates the passenger compartment 1 side from the cargo bed 3 side. Located in the department. Further, the upright cross member 2 is formed by bending a plate material together with the rear end panel 4 and is connected to the rear end panel 4 as an upright cross member.
It is composed of an upper (hereinafter referred to as the upper) 5 and an upright cross member lower (hereinafter referred to as the lower) 6.

That is, the upper 5 has one end connected to the rear end panel 4 and the other end connected to the rear end panel 4.
It extends to the lower front. A substantially horizontal bent portion 7 is formed at the lower end of the upper 5. Further, one end of the lower 6 is connected to the lower end of the rear end panel 4. Further, the lower portion 6 has its other end portion extended forward and has a substantially horizontal bent portion 8 at its tip portion.
The bent portion 8 of the lower 6 is spot-welded to the bent portion 7 of the upper 5. As a result, the upright cross member 2 has a flange portion 9 extending toward the center of the passenger compartment.
And the upright cross member 2
A closed cross section 10 is formed inside.

Further, a seat pan 13 for partitioning the vehicle compartment 1 and the engine compartment 12 is pivotally supported on a standing wall portion 11 of the upright cross member 2 formed by the upper 5. The seat pan 13 is rotatable by a hinge 14 in a certain range in the vertical direction. Further, the edge portion 15 of the seat pan 13 on the pivotal end side vertically faces the flange portion 9, and a seal member 16 made of rubber or the like is interposed between the edge portion 15 and the flange portion 9. ing.

In addition, a reinforcing member 1 formed by bending a plate material is provided inside the upright cross member 2 that pivotally supports the seat pan 13.
7 is provided. The reinforcing member 17 is the standing wall 1
It is in contact with the inner side surface of 1 and is connected to the upper 5 and the lower 6. Further, a buckle stay (not shown) of a seat belt device or the like is attached to the upright cross member 2. The upright cross member 2 enhances the strength of the vehicle body and can cope with the load input from the seat pan 13 and the seat belt device. In addition, a nugget formed by spot welding is shown by a in FIG.

(Problems to be solved by the invention) By the way, in such a conventional device, the flange portion 9 of the upright cross member 2 is formed by connecting the bent portions 7 and 8 of the upper 5 and the lower 6 together. For this reason, the surface of the flange portion 9 is likely to have a dent or dust on the nugget 9a due to spot welding. For this reason, there is a problem that the sealing property between the flange portion 9 and the seal member 16 becomes insufficient, and the transmitted sound from the engine room 12 becomes large.

Further, if a back metal is used at the time of welding to make the surface of the flange portion 9 flat, or if a grinder finish or the like is performed in the step after welding, the number of steps increases and the productivity deteriorates.

An object of the present invention is to provide a vehicle body structure which is excellent in productivity and sealing between the vehicle compartment and the engine room.

[Constitution of device]

(Means and Actions for Solving the Problems) In order to achieve the above object, the present invention is an upgrade in which an upright cross member upper and an upright cross member lower are coupled to a rear end panel that constitutes a vehicle interior. The upright cross member has a light cross member, and the seat pan is pivotally supported on the up cross member, and a flange portion is formed in close proximity to the edge portion of the seat pan, and the flange portion is a single plate member. The upper part of the upright cross member lower is provided with an extension part that overlaps with and is connected to the seat pan pivotal support part of the upper part of the upright cross member.

By doing so, the present invention aims to improve the sealability between the vehicle compartment and the engine room without lowering the productivity.

(Prior Art) An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.

FIG. 1 is a partial cutaway view of the essential parts of an embodiment of the present invention. Reference numeral 4 in the drawing is a rear end panel that constitutes the passenger compartment 1 of the freight vehicle and partitions between the front passenger compartment 1 and the rear cargo bed 3. Further, rear pillars 21 and 21 are formed at both left and right ends of the rear end panel 4.

An upright cross member 22 is provided at the lower end of the rear end panel 4 on the front surface side so as to project substantially vertically upward from the floor of the vehicle compartment 1. In other words, the upright cross member 22 has the rear pillars 21 and 21.
As shown in FIG. 2, the upright cross member upper (hereinafter referred to as the upper) is formed by bending a sheet metal together with the rear end panel 4, as shown in FIG.
23 and an upright cross member lower (hereinafter referred to as a lower) 24.

One end of the upper 23 is joined to the rear end panel 4. The upper 23 has a horizontal portion 25 that extends toward the vehicle compartment 1 and a standing wall portion 26 that extends substantially vertically downward with respect to the horizontal portion 25. Further, the lower end portion of the standing wall portion 26 is bent substantially horizontally toward the vehicle compartment 1 to form a flange portion 27. The front end portion 27a of the flange portion 27 is the engine room 1
It is bent toward the 2 side. In addition, the standing wall 26
A slanted portion 28 as a seat pan pivotally supporting portion that is formed low from the rear end panel 4 side to the vehicle compartment 1 side is provided in the vehicle. A plurality of the inclined portions 28 are formed along the longitudinal direction of the upper 23 as shown in FIG.

Further, the lower 24 has one end 24a connected to the lower end side bent portion 4a of the rear end panel 4. And
One end of the lower 24 extends to the side of the loading platform 3, and the tip thereof is bent into a U-shaped cross section with the upper side open. Further, the lower 24 extends horizontally toward the passenger compartment 1, and an extension 24b is formed at the other end of the lower 24. The extended portion 24b is formed by the standing wall portion 26 of the upper 23.
Is formed so as to abut on the inside. The extended portion 24b is formed by the standing wall portion 26 and the inclined portion 2 of the standing wall portion 26.
8 spot welded.

That is, the upright cross member 22 has a box shape, and the closed cross section 29 is formed inside. The nuggets formed in the spot welds are indicated by a in FIG.

Further, a seat pan hinge 30 provided on a seat pan 13 that partitions between the vehicle compartment 1 and the engine room 12 is attached to each inclined portion 28 of the upright cross member 22. The seat pan hinge 30 pivotally supports the seat pan 13 in a vertically rotatable manner within a certain range, and includes a bolt 31 penetrating the upper 23 and the lower 24 and a nut 32 screwed to the bolt 31. It is fixed by.

Further, a seal member 16 made of rubber or the like is attached to the edge portion 13a of the seat pan 13 on the pivotal end side. The sealing member 16 is attached along the edge portion 13a, and when the seat pan 13 is closed as shown in FIG. 2, it contacts the upper surface of the flange portion 27 and the seat pan 13 and the flange portion 27. Seal between and.

Here, FIG. 1 shows a state in which the seat pan 13 is not attached, and 33 (only two are shown) in the drawing are seat pan hinge attachment holes. Reference numeral 34 in FIG. 1 denotes a seat underframe which is connected to the longitudinal center of the upright cross member 2 and extends to the front of the vehicle body. And this seat underframe 3
Openings 35, 35 for opening and closing the engine compartment 12 which are opened and closed by the seat pan 13 are formed on both side portions of the sheet No. 4. Further, buckle stays 36, 36 of the seat belt device are provided in a projecting manner at the joint between the seat underframe 34 and the upright cross member 22.

In such a structure, the flange portion 27 of the upright cross member 22 is composed of only the upper 23. Therefore, it is not necessary to perform spot welding on the flange portion 27, and the flange portion 27 does not have dents or dust due to spot welding. Therefore, the sealing performance of the seal member 16 does not become insufficient, and the sound transmitted from the engine room 12 to the vehicle interior 1 can be significantly reduced. Also, use back metal during welding,
Alternatively, since the surface of the flange portion 27 becomes flat even if grinder finishing or the like is not performed in the step after welding, the number of steps is small and the productivity is good.

Further, in the vehicle body structure described above, the extension portion 24b of the lower portion 24 is superposed on the inclined portion 28 of the upper portion 23 and coupled to the extension portion 2b.
Since the strength of the upright cross member 22 is secured by 4b, it is not necessary to provide a separate reinforcing member inside the upright cross member 22, and the number of parts and man-hours are reduced.

[Effect of device]

As described above, the present invention has the above-mentioned flange of the upright cross member having the flange portion that is formed by connecting the rear end panel with the upright cross member upper and the upright cross member lower and is opposed to the edge of the seat pan. The portion is formed of a single plate material, and the upright cross member lower is provided with an extension portion that overlaps and is coupled to the seat pan pivotal support portion of the upright cross member upper.

Therefore, the present invention has an effect of improving the sealing property between the vehicle compartment and the engine room without lowering the productivity.

[Brief description of drawings]

1 and 2 show an embodiment of the present invention.
FIG. 1 is a perspective view showing a part of the main part broken away, and FIG. 2 is a side sectional view taken along the line AA in FIG. 1 with a seat pan attached, FIGS. 3 and 4. Shows a conventional example, FIG. 3 is a side view showing a general cab-over type freight vehicle, and FIG. 4 is a side sectional view showing an upright cross member. 4 ... Rear end panel, 13 ... Seat pan, 13a
...... Seat pan edge, 23 ...... upright cross member upper, 24 ...... upright cross member lower, 24b ...... extension part, 27 ...... flange part, 28 ......
Inclined part (seat pan pivotal part).

Claims (1)

[Scope of utility model registration request] 1. An upright cross member having an upright cross member upper and an upright cross member lower connected to a rear end panel forming a vehicle compartment, and a seat pan is attached to the upright cross member. In a vehicle body structure that is pivotally supported and has a flange portion that closely faces and opposes an edge portion of the seat pan, the flange portion is formed by a single plate material, and the upright cross member lower is provided with the upright. A vehicle body structure characterized in that an extension portion is provided so as to be overlapped and coupled with a seat pan pivotal support portion of a cross member upper.