JPH0872744A - Automobile body structure - Google Patents

Abstract

PURPOSE: To eliminate distortion of a roof panel and improve productivity. CONSTITUTION: A roof panel center reinforcement 10 is arranged along the car width direction approximately in the center part in the car body front/rear direction of a roof panel 12 and a roof panel reinforcement bracket 30 fixed by screws 36 is arranged in a coupling part of the reinforcement 10 with a roof side rail 20. A pair of attachment holes 32, 34 for fixing to the reinforcement 10 are bored in the bracket 30. The attachment hole 32 has larger diameter than the shaft diameter of the screw 36, what is called a clearance hole, and the attachment hole 34 having almost same diameter as the shaft diameter of the screw 36 is set as a locating hole. Three attachment holes 38, 40, 42 for fixing to the roof side rail 20 are bored in the bracket 30. The attachment holes 38, 40, 42 have larger diameters than the shaft diameters of the screws 36 and set as, what is called, clearance holes.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automobile body structure, and more particularly to an automobile body structure in which a roof panel center reinforcement and a roof side rail inner are connected.

[0002]

2. Description of the Related Art Conventionally, in a vehicle body structure of an automobile, a structure in which a roof panel center reinforcement and a roof side rail inner member are combined is known, and an example thereof is shown in Japanese Utility Model Application Laid-Open No. 64-39178. .

As shown in FIG. 6, in the vehicle body structure of this automobile, a roof panel center reinforcement 70 is arranged at a middle portion in the front-rear direction of the roof along the width direction of the vehicle.
70A of the roof panel 72 is fixed to the rain lip side channel 74 together with the end 72A of the roof panel 72, and the roof panel center reinforcement 70
The extension portion 76A of the center pillar 76 is fixed to the middle portion 70B of the center pillar 70, thereby improving the support rigidity of the roof panel center reinforcement 70.

[0004]

However, in the vehicle body structure of this automobile, the roof panel center reinforcement 70 is affected by the pressing precision and the assembly error of the roof panel center reinforcement 70 and the extension portion 76A of the center pillar 76. The intermediate portion 70B and the extension portion 76A of the center pillar 76 may vary in the vehicle body height direction (direction of arrow H in FIG. 6). Further, in the vehicle body structure of this automobile, the roof panel center reinforcement 70
The intermediate portion 70B and the extension portion 76A of the center pillar 76 are fixed by spot welding. Therefore, the roof panel center reinforcement 70 may be distorted together with the roof panel 72 due to the variation at the time of assembling, and in order to prevent this, a complicated adjustment work is required at the time of assembling, and the productivity is reduced. .

In view of the above facts, it is an object of the present invention to provide a vehicle body structure capable of eliminating the distortion of the roof panel and improving the productivity.

[0006]

A vehicle body structure of an automobile according to the present invention comprises a roof panel center reinforcement arranged in the middle portion of the roof front-rear direction along the vehicle width direction and both ends in the vehicle width direction inside the roof vehicle. A roof side rail inner disposed along the front-rear direction of the vehicle body, a coupling bracket that couples the roof panel center reinforcement and the roof side rail inner, and the coupling bracket that is drilled in the coupling bracket. A first mounting hole for fixing to the roof panel center reinforcement, a second mounting hole formed in the coupling bracket for fixing the coupling bracket to the roof side rail inner, and the first mounting A hole and a fixing means to be inserted into the second mounting hole, and the first mounting hole and the second mounting hole. Is characterized in that it has a larger diameter than the shaft diameter of the fastening means at least one with respect to the vehicle body height direction of the hole.

[0007]

According to the vehicle body structure of an automobile of the present invention, when the roof panel center reinforcement and the roof side rail inner are connected by the connecting bracket, the fixing means is arranged so as to have a shaft diameter larger than that of the fixing means in the vehicle body height direction. The fixing means inserted into the first mounting hole or the second mounting hole having a large diameter is fixed after the other fixing means. As a result, the displacement between the roof panel center reinforcement and the roof side rail inner in the vertical direction of the vehicle body is made larger than the axial diameter of the fixing means with respect to the vehicle body height direction. Can be absorbed by the pores.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the vehicle body structure of an automobile according to the present invention will be described with reference to FIGS.

In the figure, an arrow FR indicates a front direction of the vehicle body, an arrow UP indicates an upward direction of the vehicle body, and an arrow IN indicates a vehicle width inward direction. In addition, the X mark in FIG. 1 indicates the spot welded portion.

As shown in FIG. 1, the roof panel center reinforcement 10 is arranged substantially in the center of the roof panel 12 in the front-rear direction of the vehicle along the longitudinal direction of the roof panel 12, that is, in the vehicle width direction. Has been done. The roof panel center reinforcement 10 has a plate-like end portion 10A in the longitudinal direction, and is arranged with the plate thickness direction along the vertical direction. In addition, the longitudinal intermediate portion is bent so that the cross section in the direction orthogonal to the longitudinal direction is substantially U-shaped, and the overall shape viewed from the front of the vehicle body is an upwardly convex arcuate curved shape.

As shown in FIG. 2, the roof panel center reinforcement 10 has groove portions 10B and 10C recessed downward in the vehicle body along the vehicle width direction at both front and rear edges thereof. Through holes 10D and 10D are provided in the vicinity of both ends in the vehicle width direction in the grooves 10B and 10C, respectively.
E is drilled. Further, weld nuts 14 and 16 as fixing means are fixed in the groove portions 10B and 10C coaxially with the through holes 10D and 10E.

As shown in FIG. 1, the widthwise end portion 12A of the roof panel 12 is spot welded to a rain drop side channel 18 extending in the front-rear direction of the roof panel 12 along the widthwise end portion of the roof panel 12. It is stuck in. Further, the longitudinal end 10A of the roof panel center reinforcement 10 located at the widthwise end of the roof panel 12 is the widthwise end 12A of the roof panel 12.
At the same time, it is fixed to the rain drop side channel 18 by spot welding.

Roof side rails 20 are arranged below the both ends of the roof panel 12 in the vehicle width direction along the longitudinal direction of the vehicle body. The roof side rail 20 is composed of a roof side rail outer 22 that constitutes the vehicle body outer side portion of the roof side rail 20 and a roof side rail inner 24 that constitutes the vehicle body inner side portion of the roof side rail 20. The rail outer 22 and the roof side rail inner 24 are fixed to each other at the upper end and the lower end by spot welding to form a closed cross section. A flange 18A of the rain drop side channel 18 is fixed to the roof side rail outer 22 by spot welding.

As shown in FIG. 4, a through hole 24B is formed in the general surface 24A of the roof side rail inner 24, and the through hole 24 is formed in the upper surface of the general surface 24A.
A weld nut 26 as a fixing means is fixed coaxially with B. Although not shown, the through holes and the weld nuts 26 are arranged at three positions along the front-rear direction of the vehicle body at predetermined intervals.

As shown in FIG. 1, a roof panel reinforcement bracket 30 as a connecting bracket is arranged at a connecting portion between the roof side rail 20 and the roof panel center reinforcement 10.

The shape of the roof panel reinforcement bracket 30 as viewed from the front-rear direction of the vehicle body is a bowed curved shape that is convex toward the outside of the vehicle body, and the shape as viewed from above the vehicle body is outwardly in the vehicle width direction. It is a trapezoid that spreads out. A pair of mounting holes 32, 34 as first mounting holes are formed near the inner edge 30A of the roof panel reinforcement bracket 30 in the vehicle width direction at predetermined intervals in the vehicle body front-rear direction.

As shown in FIG. 2, these mounting holes 3
A screw 36 as a fixing means is provided on the inner side of the passenger compartment from the inside of the vehicle.
(See FIGS. 5A and 5B) are respectively inserted, and these screws 36 are weld nuts 14 and 1 fixed to the roof panel center reinforcement 10.
It is screwed to 6. The mounting hole 32 has a diameter larger than the shaft diameter of the screw 36 and is a so-called foolish hole. As shown in FIG. 3, the mounting hole 34 has a diameter substantially equal to the shaft diameter of the screw 36 and serves as a positioning hole. There is.

Three mounting holes 38, 40, 42 as second mounting holes are provided in the vicinity of the outer edge 30B of the roof panel reinforcement bracket 30 in the vehicle width direction at predetermined intervals in the vehicle front-rear direction. Has been drilled.

As shown in FIG. 4, these mounting holes 3
Screws 36 are respectively inserted from the vehicle interior side into the 8, 40, and 42, and these screw 36 are screwed to a weld nut 26 fixed to the roof side rail inner 24. In addition, the mounting holes 38, 40, 42 are provided with the screw 36.
The diameter is larger than the shaft diameter of, and is a so-called stupid hole.

The reference numeral 50 in FIGS. 2, 3 and 4 indicates
The roof head lining is shown, and the reference numeral 52 in FIGS. 2 and 3 indicates a reinforcement roof panel center.

Next, the operation of this embodiment will be described. The vehicle body structure of the automobile according to the present embodiment includes a roof panel reinforcement 30 and a roof panel center reinforcement 10 and a roof side rail inner 2.
When connecting with 4, the screw 36 inserted into the mounting hole 34, which is a positioning hole, of the screw 36 is first tightened. Then, the screw 36 inserted in the mounting hole 32 is tightened, and subsequently, the screw 36 inserted in the mounting holes 38, 40, 42 is tightened.

That is, the screw 36 inserted into the mounting holes 32, 38, 40, 42 having a diameter larger than the axial diameter of the screw 36 in the vehicle body height direction is fixed after the screw 36 inserted into the mounting hole 34. . As a result, the roof panel center reinforcement 10 and the roof side rail inner 2
4, the vertical displacement of the vehicle body from the mounting holes 32, 38,
It can be absorbed by the tightening positions of 40 and 42. Therefore, the roof panel 12 is less likely to be distorted at the time of assembly, and the productivity is improved.

Further, in this embodiment, by adding the roof panel reinforcement bracket 30,
Since the size of the roof panel center reinforcement 10 is not increased and the structure for connecting the roof panel center reinforcement 10 to the roof side rail 20 is not significantly changed, the roof head lining 50 and the occupant as they are are not changed. Space can be secured.

Further, in this embodiment, the mounting holes 32, 3
Since the diameters of 8, 40, and 42 are larger than the axial diameter of the screw 36 in the vehicle body front-rear direction in addition to the vehicle body height direction, displacement in the vehicle body front-rear direction can be absorbed.

Although the screw 36 is used as the fixing means in this embodiment, other fixing means such as a bolt may be used instead of the screw 36. Further, in this embodiment, the mounting hole 34 for fixing the roof panel reinforcement bracket 30 to the roof panel center reinforcement 10 is used as a positioning hole and the other holes are ridiculous holes. Any one of the mounting holes 38, 40 and 42 for fixing the roof panel reinforcement bracket 30 to the roof side rail inner 24 may be a positioning hole, and the other holes may be ridiculous holes.

[0026]

The vehicle body structure for an automobile according to the present invention comprises a roof panel center reinforcement arranged in the middle part of the roof front-rear direction along the vehicle width direction, and a vehicle body structure at both ends in the vehicle width direction inside the roof compartment. A roof side rail inner arranged along the front-rear direction, a coupling bracket that couples the roof panel center reinforcement and the roof side rail inner, and a coupling bracket that is drilled in the coupling bracket and fixed to the roof panel center reinforcement. Mounting hole for fixing the mounting bracket to the roof side rail inner, the fixing hole being inserted into the first mounting hole and the second mounting hole. Means for fixing at least one of the first mounting hole and the second mounting hole in the vehicle body height direction. Having a larger diameter than the diameter, having an excellent effect of strain in the roof panel during assembly is unlikely to occur, the productivity is improved.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a vehicle body structure of an automobile according to an embodiment of the present invention as seen from a vehicle body diagonally outer side.

FIG. 2 is a sectional view taken along line 2-2 of FIG.

3 is a sectional view taken along line 3-3 of FIG.

4 is a sectional view taken along line 4-4 of FIG.

5A is a side view showing a fixing means of a vehicle body structure of an automobile according to an embodiment of the present invention, and FIG. 5B is a side view of a fixing means of a vehicle body structure of an automobile according to the embodiment of the present invention. It is a front view shown.

FIG. 6 is a sectional view showing a vehicle body structure of an automobile according to a conventional example.

[Explanation of symbols]

10 Roof Panel Center Reinforcement 12 Roof Panel 14 Weld Nut (Fixing Means) 16 Weld Nut (Fixing Means) 20 Roof Side Rail 26 Weld Nut (Fixing Means) 30 Roof Panel Reinforcement Bracket (Coupling Bracket) 32 Mounting Hole (No. 1) 1 mounting hole) 34 mounting hole (first mounting hole) 36 screw (fixing means) 38 mounting hole (second mounting hole) 40 mounting hole (second mounting hole) 42 mounting hole (second mounting hole) )

Claims (1)

[Claims] 1. A roof panel center reinforcement arranged along the vehicle width direction at an intermediate portion in the front-rear direction of the roof, and a roof arranged along the vehicle front-rear direction at both vehicle width-direction ends on the inside of the roof compartment. A side rail inner, a joining bracket for joining the roof panel center reinforcement and the roof side rail inner, and a first bracket for piercing the joining bracket for fixing the joining bracket to the roof panel center reinforcement. A mounting hole, a second mounting hole formed in the coupling bracket for fixing the coupling bracket to the roof side rail inner, and a fixing inserted in the first mounting hole and the second mounting hole. Means for connecting at least one of the first mounting hole and the second mounting hole in the vehicle body height direction. The vehicle body structure of the automobile is characterized in that the diameter is larger than the shaft diameter of the fixing means.