JP2002249072A - Roof structure for automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a roof structure of an automobile capable of preventing the distortion of a roof panel in assembling a car body and mounting a roof rail, and being adapted to a car body design applying many curved faces. SOLUTION: In this roof structure of the automobile, an upper edge part of a side panel outer 10 is provided with a vertical wall part 10b bent toward a lower part of the car body and a bent face formed by bending a lower end part of the vertical wall part toward the inside of the car body, two vertical wall parts 11b, 11d bent toward the lower part of the car body and two bent faces bent toward the outside of the car body are alternately molded to provide the side end part of the roof panel with upper and lower two stages, the vertical wall part of the side panel outer 10 and a lower vertical wall part of the roof panel 11 are oppositely mounted, and a bent face of the side panel outer and a lower bent face of the roof panel are bonded and fixed in a face-bonding state.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roof structure of a motor vehicle, and more particularly to a roof structure for preventing a roof panel from being distorted when a vehicle body is assembled or a roof rail is fitted.

[0002]

As shown in FIG. 3, roof rails 2 are arranged in parallel on the left and right ends of the roof panel 1 along the longitudinal direction of the vehicle body. Loads such as skis and surfboards are loaded on the roof panel 1 via the roof panel 1. Conventionally, this roof panel 1
4 and the upper end of the side panel outer 3 joined to the side end by welding in a state where each joint end is bent and formed into a predetermined shape, as shown in FIG. A mounting groove 4 for a roof molding, a roof rail 2, or the like is formed to be recessed along the front-rear direction of the vehicle body. In addition, the code | symbol 5 in a figure has shown packing.

However, in such a conventional roof structure, when a large and flat roof panel 1 and a side panel outer 3 which is an outermost shell of a side structure made of a plurality of laminated materials are connected (assembled), the roof panel 1 is not required. In addition, there is a problem that the roof panel 1 near the mounting groove 4 is easily distorted due to a difference in strength between the two. To solve this problem,
It is conceivable to form the vertical wall portion 6 for absorbing the distortion at the time of assembling in the mounting groove 4 of the roof panel 1. However, according to such a means, the mounting groove 4 is widened. , Design and design are constrained. For this reason, it is conceivable to improve the processing accuracy and assembly accuracy of the roof panel 1 and the side panel outer 3 to reduce the distortion generated at the time of assembling the vehicle body. In this case, however, it is inevitable that the parts cost and the processing cost increase. . Furthermore, the mounting groove 4
When the roof rail 2 is attached to the roof panel, if the joining accuracy of the joint surface between the roof panel 1 and the roof rail 2 is not ensured, the distortion at the side end of the roof panel 1 increases, or the roof panel 1 and the roof rail 2 There is also a problem that a gap is generated between the joining surfaces and the quality is impaired.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the conventional roof structure, and has been made without changing the structure of the roof panel or the side structure. An automobile that prevents distortion of the roof panel that occurs during assembly and installation of roof rails, improves quality at a low cost, and can be applied to a car body design that makes extensive use of curved surfaces without restricting the design and design. It is an object of the present invention to provide a roof structure.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a roof molding in which a side end of a roof panel is connected between upper ends of side panel outers erected on both sides of a vehicle body. In a roof structure of an automobile in which mounting grooves such as roof rails and the like are formed in a recessed manner, a vertical wall portion bent toward the lower side of the vehicle body at an upper end portion of the side panel outer, and a lower end portion of the vertical wall portion are formed inside the vehicle body. And two vertical walls bent toward the lower side of the vehicle body so that the side end of the roof panel has a two-tiered shape at the side end of the roof panel. And the two bent surfaces bent toward the outside of the vehicle body are alternately formed, and the vertical wall portion of the side panel outer and the vertical wall portion below the roof panel are arranged to face each other, and the side panel is formed. By binding fixed in a state where the engaging interview and bent surface of the lower bent surface and the roof panel of the outer, wherein the attachment groove is formed.

Further, the vertical wall portion above the roof panel is formed at a position different from the inside of the mounting groove.

Further, the vertical wall portion above the roof panel is formed substantially along the vehicle longitudinal direction at the side end of the roof panel, and the vertical wall portion above the roof panel in the vehicle longitudinal direction is formed. The curvature is formed so as to be different from the curvature of the roof panel in the vehicle longitudinal direction.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a roof structure to which the present invention is applied will be described below with reference to FIGS. FIG. 1 is a side view of a cabin of an automobile to which the roof structure of the present invention is applied, viewed from one side. FIG. 2 is shown in FIG. 1 for explaining a cross-sectional structure of the roof structure of the present invention. It is BB arrow sectional drawing. In addition, since the roof structure is provided symmetrically on the left and right sides of the vehicle body, the roof structure provided on the left side of the vehicle body will be described below.

As shown in FIG. 1, a side panel outer 1 is provided.
0 and the side end of the roof panel 11
A frame for an automobile cabin is formed, and a mounting groove 1 for mounting a roof rail 12 is provided at a joint between the side panel outer 10 and the roof panel 11.
3 is formed to be recessed along the longitudinal direction of the vehicle body.

The outer side panel 10 is an outermost shell of a side structure made of a plurality of laminated materials, and as shown in FIG. 2, a plate-shaped main body 10 extending toward the inside of the vehicle body.
a, a vertical wall portion 10b bent by a predetermined distance toward the lower side of the vehicle body, and a joining surface 10c obtained by bending a lower end portion of the vertical wall portion 10b substantially horizontally toward the inside of the vehicle body along the vehicle front-rear direction. It is molded. And the vertical wall part 10
“b” forms one side wall of the mounting groove 13 that is recessed when the side panel outer 10 and the roof panel 11 are assembled.

The roof panel 11 is, as shown in FIG.
At the side end of a plate-shaped main body 11a that is gently curved toward the outside of the vehicle body (right side in FIG. 2), a vertical wall portion 11b bent by a predetermined distance downward toward the vehicle body, and a vertical wall portion 11a Is bent substantially horizontally so as to face the outside of the vehicle body, and the joining surface 1 is joined to a part of the roof rail 12.
1c is formed along the longitudinal direction of the vehicle body. The fall amount of the vertical wall portion 11b is increased or decreased according to a change in the design surface at the side end of the main body portion 11a. That is, the curvature of the vertical wall portion 11b of the roof panel 11 in the vehicle longitudinal direction is
The body portion 11a of the roof panel 11 is formed so as to have a curvature different from that of the longitudinal direction of the vehicle body. Therefore, by making the curvature of the vertical wall portion 11b at least smaller than that of the body portion 11a, the joining surface 11c is formed in the longitudinal direction of the vehicle body. Over the same horizontal plane.

Further, the roof panel 11 has a joint surface 11
(c) is bent at a predetermined distance so that the side end of the vertical wall (c) faces the lower part of the vehicle body, and the lower end of the vertical wall part (11d) is bent substantially horizontally toward the outer side of the vehicle body to face the bottom of the roof rail (12). And side panel outer 1
The joint surface 10c and the joint opposing surface 11e to be joined are molded along the vehicle front-rear direction. And the vertical wall part 11
d is the other side wall of the mounting groove 13 that is recessed when the side panel outer 10 and the roof panel 11 are assembled, and the joint opposing surface 11e forms the bottom surface of the mounting groove 13. . The outer end of the joint facing surface 11e is slightly bent upward.

When the side panel outer 10 and the roof panel 11 are assembled, the vertical wall 10b of the side panel outer 10 and the vertical wall 11 below the roof panel 11 are assembled.
d and the side panel outer 10
The mounting groove 13 is recessed in the longitudinal direction of the vehicle body by fixing a predetermined portion by welding in a state where the lower surface of the joint opposing surface 11e of the roof panel 11 is joined to the upper surface of the joint surface 10c. Becomes In addition, mounting groove 1
A sealer (not shown) is applied to a predetermined portion 3.

The mounting groove 1 formed as described above
As shown in FIGS. 1 and 2, the roof rail 12 attached to the vehicle body 3 is formed into three parts along the longitudinal direction of the vehicle body. Main body 12
The front cover 12a includes a resin front cover 12b and a rear cover 12c attached to the rear end.

As shown in FIG. 2, the central main body 12a
The central main body 1 is formed in a vertically elongated substantially rectangular cross section.
A flange portion 12d which extends substantially horizontally from the outer surface of the vehicle body 2a toward the outside of the vehicle body and is joined to the upper surface of the main body portion 10a of the side panel outer 10 via the packing 14, and from the inner surface of the vehicle body to the inside of the vehicle body A flange 12e that extends substantially horizontally and is joined to the upper surface of the joint surface 11c of the roof panel 11 via a packing 15 is provided. The central main body 12a is joined through the flanges 12d and 12e.
Is applied to the side panel outer 10 and the roof panel 1
It takes one. Also, the collar portions 12d, 1
A carrier (not shown) is engaged with the central body portion 12a projecting upward from 2e, so that a load is loaded above the roof panel 11. On the other hand, the central body portion 12a protruding below the flange portions 12d and 12e.
Is inserted and arranged in the mounting groove 13.

By the way, the vertical wall portion 11b molded at the front and rear ends of the roof panel 11 is provided at the front of the central body portion 12a,
The front cover 12b and the rear cover 12c attached to the rear end prevent the vehicle from being directly viewed from outside the vehicle body. Further, the load of the front cover 12b and the rear cover 12c is applied to the central main body 12a without directly applying to the side panel outer 10 and the roof panel 11.

Further, instead of such a configuration of the roof rail 12, a roof drip molding having a substantially T-shaped cross section may be mounted in the mounting groove 13. In this case, the lip surface on the outside of the vehicle body of the roof drip molding is joined to the upper surface of the main body 10a of the side panel outer 10, and the lip surface on the inside of the vehicle body is joined to the upper surface of the joining surface 11c of the roof panel 11.

As described above, according to the present embodiment, the side end of the roof panel 11 is formed into a two-stage shape having two vertical wall portions 11b and 11d, and the upper vertical wall portion 11b is formed.
Is molded inside the vehicle body more than the joint surface 11b of the roof panel 11 to which the flange portion 12e projecting inside the vehicle body of the roof rail 12 is joined. As a result, distortion generated when the side panel outer 10 and the roof panel 11 are assembled and when the roof rail 12 is attached is reduced.
1b is absorbed and relaxed, and the main body 11 of the roof panel 11 is
It is possible to prevent distortion from occurring at the side end of “a”. When the roof rail 12 is fitted, the roof panel 1
1 and the flange portion 12 of the roof rail 12
Even when a gap is generated between the two due to low accuracy of the joint surface with e, the gap can be made difficult to see by the vertical wall portion 11b, and the sense of quality can be improved. Moreover, when the vertical wall portion 11b prevents the distortion generated at the side end portion of the roof panel 11, the configuration of the side structure or the side panel outer 10 is not significantly changed.

Further, the falling amount of the vertical wall portion 11b is:
The main body 11a is molded by increasing or decreasing in accordance with a change in the design surface of the side end of the main body 11a. Therefore, by changing the curved surface of the design surface of the roof panel 11 by the vertical wall portion 11b,
The degree of freedom in the design of the main body 11a of the roof panel 11 can be improved, and the mounting groove 13 having a constant cross-sectional shape can be formed. And such mounting groove 13
Central body 12a of the roof rail 12 attached to the vehicle
In addition, since an extruded aluminum material having a constant cross section can be adopted, the cost of the roof rail 12 can be reduced. Further, the mounting groove 13 is disposed so as to face the vertical wall portion 10 b of the side panel outer 10.
The vertical wall portion 11d formed so as to form the other side wall does not have a stepped portion which is formed so as to protrude toward the outside of the vehicle body as in the related art, and has a substantially smooth surface. As a result, the separation distance between the vertical wall portion 11d of the roof panel 11 and the bottom surface of the central body portion 12a of the roof rail 12 can be minimized, and the groove width of the mounting groove 13 can be made smaller than before. And the degree of freedom in designing the vehicle body can be improved.

As a result, even when a car body design using many curved surfaces is adopted, it is possible to provide a unique curvature on the roof panel, and to reliably absorb the difference error even when such car bodies are assembled. Thus, it is possible to obtain an effect that the assembled strain generated in the roof panel can be prevented.

[0021]

As described above, according to the roof structure of the present invention, it is possible to prevent the roof panel from being distorted when the vehicle body is assembled or when the roof rail is mounted, without making a significant change in the configuration of the roof panel and the side structure. Thus, it is possible to provide a roof structure of an automobile that can improve the quality of the vehicle at low cost and can adapt to a vehicle body design using many curved surfaces without restricting the design and the design.

[Brief description of the drawings]

FIG. 1 is a side view of a cabin of an automobile to which a roof structure according to the present invention is applied when viewed from one side.

FIG. 2 is a sectional view taken along the line BB shown in FIG. 1 for explaining a sectional structure of the roof structure of the present invention.

FIG. 3 is a front view of an automobile having a conventional roof structure.

FIG. 4 is a sectional view taken along the line AA shown in FIG. 3 for explaining a sectional structure of a conventional roof structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Side panel outer 10a Main body part 10b Vertical wall part 10c Joining surface 11 Roof panel 11a Main body part 11b Vertical wall part 11c Joining surface 11d Vertical wall part 11e Join opposing surface 12 Roof rail 12a Central body part 12b Front cover 12c Rear cover 12d Toe part 12e Collar 13 Mounting groove

Claims (3)

[Claims] 1. A roof structure of an automobile in which a side end of a roof panel is joined between upper ends of side panel outers erected on both sides of a vehicle body to form recesses for mounting a roof molding, a roof rail, and the like. A top wall portion of the side panel outer formed with a vertical wall portion bent downward toward the vehicle body, and a bent surface obtained by bending a lower end portion of the vertical wall portion toward the inside of the vehicle body; At the end, two vertical wall portions bent downward toward the vehicle body and two bent surfaces bent toward the outer side of the vehicle body are alternately arranged so that the side end portion of the roof panel has an upper and lower two-stage shape. The vertical wall portion of the side panel outer and the vertical wall portion below the roof panel are disposed so as to face each other, and the bent surface of the side panel outer and the bent surface below the roof panel are faced. By joining and fixing in the joined state,
A roof structure for an automobile, wherein the mounting groove is formed. 2. The roof structure of an automobile according to claim 1, wherein a vertical wall portion above the roof panel is formed at a position different from the inside of the mounting groove. 3. A vertical wall portion above the roof panel is formed substantially along a vehicle longitudinal direction at a side end of the roof panel, and a vertical wall portion above the roof panel in a vehicle longitudinal direction. The automobile roof structure according to claim 1, wherein the curvature is formed so as to be different from the curvature of the roof panel in the vehicle longitudinal direction.