JP2021194935A - Roof structure for vehicles - Google Patents

Abstract

To upgrade the capability to install a roof panel, and ensure excellent adhesion quality of an adhesive surface that joins an HR inclined part of a header reinforcement and an RP inclined part of a roof panel.SOLUTION: A header reinforcement 2 that extends in a vehicle width direction and joins left and right roof side members 1 includes an HR body 21, HR inclined part 22, and HR flange 23 that joins the roof side members 1. A roof panel 4 includes an RP body 41 forming a top surface of a vehicle, an RP inclined part 42 to be bonded to the HR inclined part 22, and an RP flange 43 superposed on the HR flange 23. The RP inclined part 42 is disposed in parallel with the HR inclined part 22. An angle at which the HR inclined part 22 meets a horizontal surface and an angle at which the RP inclined part 42 meets the horizontal surface are equal to or smaller than 65 degrees.SELECTED DRAWING: Figure 3

Description

The present invention relates to a vehicle roof structure to which a roof panel is bonded.

When welding the flanges at both ends of the roof panel that constitutes the top surface of the vehicle to the roof side member on the outer side in the vehicle width direction, the roof panel and roof side are used to hide the spot welding dents with the roof molding to improve the appearance. A vehicle roof structure is known in which the joint with a member has a groove shape that is recessed downward. Patent Document 1 discloses a vehicle roof structure in which an inclined portion extending in a substantially vertical direction is provided between a main body portion and a flange portion of a roof panel as such a groove-shaped side wall.

Japanese Unexamined Patent Publication No. 11-29067

When the roof panel is not welded and is adhered to the roof side member and the header reinforcement described later with an adhesive, the joint between the roof panel and the roof side member is formed into a groove shape that is recessed downward. The adhesive that has squeezed out from the flange of the roof panel in the vehicle width direction can be hidden by the roof molding to improve the appearance. When an RP inclined portion extending in a substantially vertical direction is provided between the main body portion and the flange portion of the roof panel as such a groove-shaped side wall, the header reinforcement extending in the vehicle width direction along the inner surface of the roof panel. Also, an HR inclined portion parallel to the RP inclined portion is provided, and the RP inclined portion and the HR inclined portion are bonded with an adhesive. In such a vehicle roof structure, the distance between the RP inclined portion and the HR inclined portion becomes too large due to factors such as the dimensional tolerance of the roof panel and the header reinforcement, and the RP inclined portion and the HR inclined portion are separated from each other. The quality of the adhesive surface to be adhered may be affected, or it may be difficult to assemble the roof panel.

Therefore, it is an object of the present invention to improve the assembling property of the roof panel and to secure the adhesive quality of the adhesive surface for adhering the HR inclined portion of the header reinforcement and the RP inclined portion of the roof panel.

The vehicle roof structure according to the present invention is arranged at both ends on the outer side in the vehicle width direction in the roof of the vehicle, and has a roof side member extending in the front-rear direction and a header rain extending in the vehicle width direction and connecting to the left and right roof side members. A vehicle roof structure including a force and a roof panel bonded to the header reinforcement with an adhesive, wherein the header reinforcement has an HR main body extending in the vehicle width direction and the HR main body portion. The HR inclined portion that inclines downward from the outer end of the HR main body in the vehicle width direction toward the outside in the vehicle width direction, and the HR inclined portion that inclines downward from the outer end of the HR inclined portion in the vehicle width direction toward the outside in the vehicle width direction. The roof panel includes an HR flange portion that extends and is superposed on the roof side member and connected to the roof side member, and the roof panel includes an RP main body portion that constitutes the top surface of the vehicle and the RP main body portion. The RP inclined portion that is inclined downward from the outer end portion in the vehicle width direction toward the outside in the vehicle width direction, and is overlapped and adhered on the HR inclined portion, and the vehicle width direction of the RP inclined portion. The RP flange portion extending outward in the vehicle width direction from the outer end portion and superposed on the HR flange portion is provided, and the RP inclined portion is arranged in parallel with the HR inclined portion. The angle formed by the HR inclined portion and the horizontal plane and the angle formed by the RP inclined portion and the horizontal plane are both 65 degrees or less.

In the present invention, the RP inclined portion of the roof panel is arranged in parallel with the HR inclined portion of the header reinforcement, and the angle formed by the HR inclined portion and the horizontal plane and the angle formed by the RP inclined portion and the horizontal plane are both 65 degrees. By doing the following, the variation in the positions of the HR inclined portion and the RP inclined portion in the vehicle width direction becomes small, and it becomes easy to manage the distance between the HR inclined portion and the RP inclined portion. At the same time, it is possible to secure good adhesion quality of the adhesive surface for adhering the HR inclined portion and the RP inclined portion.

It is a top view of the header reinforcement and the roof side member of the roof structure for a vehicle of the embodiment of this disclosure. It is a top view of the roof structure for a vehicle of this embodiment. FIG. 2 is a cross-sectional view taken along the line AA in FIG. FIG. 2 is a cross-sectional view taken along the line BB in FIG. FIG. 2 is a cross-sectional view taken along the line CC in FIG. It is sectional drawing of the roof structure for a vehicle of the comparative example 1. FIG. It is sectional drawing of the roof structure for a vehicle of Example 2 of this invention.

Hereinafter, the vehicle roof structure 10 of the embodiment will be described with reference to the drawings. The arrow FR, the arrow UP, and the arrow RH shown in each figure described below indicate the front direction (traveling direction), the upward direction, and the right direction of the vehicle, respectively. Further, the opposite directions of the arrows FR, UP, and RH indicate the vehicle rear direction, the downward direction, and the left direction, respectively. Hereinafter, when the explanation is simply made using the front-rear, left-right, and up-down directions, unless otherwise specified, the front-rear direction of the vehicle front-rear direction, the left-right direction of the vehicle left-right direction (vehicle width direction), and the up-down direction of the vehicle up-down direction are shown. do.

As shown in FIG. 1, the vehicle roof structure 10 is arranged at both ends on the outer side in the vehicle width direction in the vehicle roof, and has a roof side member 1 extending in the front-rear direction and left and right roof side members 1 extending in the vehicle width direction. It is provided with a plurality of header reinforcements 2 connected to. Further, as shown in FIG. 2, the vehicle roof structure 10 includes a roof panel 4 bonded to the roof side member 1 and the header reinforcement 2 with an adhesive 3. The adhesive 3 is applied on the header reinforcement 2 and the roof side member 1 as shown in the hatched portion of FIG. Then, by placing the roof panel 4 on the adhesive 3 applied in this way as shown in FIG. 2, the roof panel 4 is adhered.

As shown in FIG. 3, the header reinforcement 2 is inclined downward from the HR main body portion 21 extending in the vehicle width direction and the outer end portion of the HR main body portion 21 in the vehicle width direction toward the outside in the vehicle width direction. The HR inclined portion 22 is provided, and the HR flange portion 23 extending from the outer end portion of the HR inclined portion 22 in the vehicle width direction toward the outside in the vehicle width direction and superposed on the roof side member 1. The roof side member 1 and the header reinforcement 2 are both made of metal such as iron or aluminum. Then, the header reinforcement 2 is connected to the roof side member 1 by welding at the HR flange portion 23.

As shown in FIGS. 3 and 4, the roof panel 4 is downward from the RP main body 41 constituting the top surface of the vehicle and the outer end of the RP main body 41 in the vehicle width direction toward the outside in the vehicle width direction. It includes an RP inclined portion 42 that inclines toward the vehicle, and an RP flange portion 43 that extends from the outer end portion of the RP inclined portion 42 in the vehicle width direction toward the outside in the vehicle width direction.

Then, at the rear end portion of the roof panel 4, as shown in FIGS. 3 and 5, the RP main body portion 41 is superposed on the HR main body portion 21 of the header reinforcement 2 and adhered with the adhesive 3. Then, as shown in FIG. 3, the RP inclined portion 42 is overlapped on the HR inclined portion 22 of the header reinforcement 2 and adhered with the adhesive 3, and the RP flange portion 43 is the HR flange of the header reinforcement 2. It is superposed on the portion 23 and adhered with the adhesive 3.

Further, except for the front end portion and the rear end portion of the roof panel 4, at the outer end portion of the roof panel 4 in the vehicle width direction, the RP flange portion 43 is the HR flange portion 23 at the position where the header reinforcement 2 is arranged. At the position where the header reinforcement 2 is not arranged because the RP flange portion 43 is overlapped on the top and adhered with the adhesive 3, the RP flange portion 43 is a roof side member without the header reinforcement 2 as shown in FIG. It is superposed on 1 and adhered with the adhesive 3.

As shown in FIGS. 3 and 4, a roof molding 5 is mounted on the RP flange portion 43 to cover the RP inclined portion 42 and the RP flange portion 43 of the roof panel 4. By attaching the roof molding 5 in this way, the adhesive 3 protruding from the outer end portion of the RP flange portion 43 in the vehicle width direction can be hidden to improve the appearance.

As shown in FIG. 3, at the rear end portion of the roof panel 4, the RP inclined portion 42 is arranged in parallel with the HR inclined portion 22, the angle formed by the HR inclined portion 22 and the horizontal plane is 50 degrees, and the RP is formed. The angle between the inclined portion 42 and the horizontal plane is also 50 degrees.

Compared with the inclination of the HR inclined portion 22 and the RP inclined portion 42 in the vehicle width direction, the inclination of the HR main body portion 21, the HR flange portion 23, the RP main body portion 41 and the RP flange portion 43 in the vehicle width direction is closer to the horizontal plane. Therefore, in the vehicle roof structure 10, variation in the positions of the HR inclined portion 22 and the RP inclined portion 42 in the vehicle width direction becomes a particular problem. If the distance between the HR inclined portion 22 and the RP inclined portion 42 is too close due to the variation in the positions of the HR inclined portion 22 and the RP inclined portion 42 in the vehicle width direction, it becomes difficult to assemble the roof panel 4 when assembling and adhering the roof panel 4. The problem arises. On the contrary, if the distance between the HR inclined portion 22 and the RP inclined portion 42 in the vehicle width direction is too long, the gap between the adhesive surfaces of the two becomes too large, and there arises a problem that good adhesive quality cannot be ensured. If the vehicle roof structure 10 can suppress variations in the positions of the HR inclined portion 22 and the RP inclined portion 42 in the vehicle width direction, the roof panel 4 is pressed from above when the roof panel 4 is assembled and bonded, so that the header reinforcement is used. Good adhesion quality can be ensured by adjusting the vertical gap between 2 and the roof panel 4 so as not to become too large.

A positioning pin (not shown) that protrudes downward is provided on the lower surface of the roof panel 4, and when the roof panel 4 is assembled to the header reinforcement 2 and adhered, the positioning pin is used as the header reinforcement. The roof panel 4 is positioned by being inserted into the hole formed in 2. Then, if the assembly position of the roof panel 4 varies in the vehicle width direction, the position of the RP inclined portion 42 in the vehicle width direction also varies. Further, the dimensional tolerances of the header reinforcement 2 and the roof panel 4 may cause variations in the positions of the HR inclined portion 22 and the RP inclined portion 42. Therefore, the dimensional tolerances of the header reinforcement 2 and the roof panel 4 and the variation in the assembly position of the roof panel 4 may cause variations in the positions of the HR inclined portion 22 and the RP inclined portion 42.

Here, by reducing the angle formed by the HR inclined portion 22 and the horizontal plane and the angle formed by the RP inclined portion 42 and the horizontal plane, the variation in the positions of the HR inclined portion 22 and the RP inclined portion 42 in the vehicle width direction becomes small. Regarding the principle of facilitating the management of the distance between the HR inclined portion 22 and the RP inclined portion 42, the vehicle roof structure 20 of Comparative Example 1 shown in FIG. 6 and the vehicle of the second embodiment of the present invention shown in FIG. The roof structure 30 will be described.

The vehicle roof structure 20 of Comparative Example 1 has the same configuration as the vehicle roof structure 10 of the present embodiment except that the HR inclined portion 22 and the RP inclined portion 42 are perpendicular to the horizontal plane. .. Therefore, the same configuration as the vehicle roof structure 10 of the present embodiment is designated by the same reference numerals with reference to FIG. 6, and the description thereof will be omitted. The vehicle roof structure 30 according to the second embodiment of the present invention has the vehicle roof structure shown in FIGS. 1 to 5 except that the angle θ between the HR inclined portion 22 and the RP inclined portion 42 and the horizontal plane is 65 degrees. It has the same configuration as 10. Therefore, the same configuration as the vehicle roof structure 10 is designated by the same reference numerals with reference to FIG. 7, and the description thereof will be omitted. 6 and 7 show cross sections of the header reinforcement 2 and the roof panel 4 at the rear end of the roof panel 4, as in FIG.

The vehicle roof structure 20 of Comparative Example 1 and the vehicle roof structure 30 of the second embodiment of the present invention have the positions of the HR inclined portion 22 and the RP inclined portion 42 due to the dimensional tolerances of the header reinforcement 2 and the roof panel 4. , As shown by the arrow D1 in FIG. 6 or the arrow D2 in FIG. 7, it is assumed that the product variation of ± 1 mm occurs in the direction perpendicular to the HR inclined portion 22 and the RP inclined portion 42. That is, in the vehicle roof structure 20 of Comparative Example 1, the variation in the positions of the HR inclined portion 22 and the RP inclined portion 42 in the vehicle width direction caused by the dimensional tolerances of the header reinforcement 2 and the roof panel 4 is ± 1 mm. .. On the other hand, in the vehicle roof structure 30 of the second embodiment of the present invention, since sin65 ° = 0.906, the HR inclined portion 22 and the RP inclined caused by the dimensional tolerances of the header reinforcement 2 and the roof panel 4 are inclined. The variation in the position of the portion 42 in the vehicle width direction is ± 0.906 mm. Therefore, the vehicle roof structure 30 of the second embodiment of the present invention has the HR inclined portion 22 and the slightly inclined portion 22 caused by the dimensional tolerances of the header reinforcement 2 and the roof panel 4 as compared with the vehicle roof structure 20 of the comparative example 1. The variation in the position of the RP inclined portion 42 in the vehicle width direction becomes small, and it becomes easy to manage the distance between the HR inclined portion 22 and the RP inclined portion 42.

The variation in the positions of the HR inclined portion 22 and the RP inclined portion 42 in the vehicle width direction caused by the dimensional tolerances of the header reinforcement 2 and the roof panel 4 is further smaller if the angle θ shown in FIG. 7 is smaller than 65 degrees. Become. For example, if the angle θ shown in FIG. 7 is 50 degrees as in FIG. 3, since sin 50 ° = 0.766, the HR inclined portion 22 and the RP caused by the dimensional tolerances of the header reinforcement 2 and the roof panel 4 The variation in the position of the inclined portion 42 in the vehicle width direction is ± 0.766 mm. Therefore, when the angle θ shown in FIG. 7 is 50 degrees, it becomes easier to manage the distance between the HR inclined portion 22 and the RP inclined portion 42.

In the vehicle roof structure 10 of the present embodiment, variations in the positions of the HR inclined portion 22 and the RP inclined portion 42 in the vehicle width direction caused by the dimensional tolerances of the header reinforcement 2 and the roof panel 4 and the assembly position of the roof panel 4 are provided. The dimensions of the HR main body 21 and the RP main body 41 in the vehicle width direction are determined so that the HR inclined portion 22 and the RP inclined portion 42 do not interfere with each other and a gap can be secured from the variation in the vehicle width direction. The variation in the vehicle width direction regarding the assembly position of the roof panel 4 can be calculated by the variation in the position in the vehicle width direction in which the positioning pin is fixed to the roof panel 4 and the variation in the clearance between the positioning pin and the hole. Then, the dimensions in the vehicle width direction of the HR main body 21 and the RP main body 41 determined in this way, the dimensional tolerances of the header reinforcement 2 and the roof panel 4, and the vehicle width direction with respect to the assembly position of the roof panel 4. From the variation, the maximum value of the distance between the HR inclined portion 22 and the RP inclined portion 42 is calculated. In order to keep the maximum value within the range that does not affect the quality of the adhesive surface that adheres the HR inclined portion 22 and the RP inclined portion 42, the angle formed by the HR inclined portion 22 and the horizontal plane and the RP inclined portion 42 are used. The angle with the horizontal plane must be 65 degrees or less. In the vehicle roof structure 10 of the present embodiment, since this angle can be structurally made smaller than 65 degrees, the angle between the HR inclined portion 22 and the horizontal plane and the RP inclined portion 42 and the horizontal plane are The angle of formation is 50 degrees.

As described above, in the vehicle roof structure 10 of the present embodiment, the RP inclined portion 42 is arranged in parallel with the HR inclined portion 22, and the angle formed by the HR inclined portion 22 and the horizontal plane and the RP inclined portion 42 and the horizontal plane are aligned with each other. By setting the angle to be formed to 65 degrees or less, the variation in the positions of the HR inclined portion 22 and the RP inclined portion 42 in the vehicle width direction becomes smaller as compared with the vehicle roof structure 20 of Comparative Example 1, and the HR is formed. It becomes easy to manage the distance between the inclined portion 22 and the RP inclined portion 42. Therefore, in the vehicle roof structure 10, the assembling property of the roof panel 4 can be improved, and good adhesive quality of the adhesive surface for adhering the HR inclined portion 22 and the RP inclined portion 42 can be ensured.

<Supplement to the embodiment>
The vehicle roof structure of the present disclosure is not limited to the above-mentioned form, and can be implemented in various forms within the scope of the gist of the present disclosure. For example, if the RP inclined portion is arranged parallel to the HR inclined portion, the angle formed by the HR inclined portion and the horizontal plane and the angle formed by the RP inclined portion and the horizontal plane may be other angles of 65 degrees or less. good. Further, the HR inclined portion of the header reinforcement and the RP inclined portion of the roof panel may be adhered to each other at a position other than the rear end portion of the roof panel.

1 Roof side member, 2 Header reinforcement, 3 Adhesive, 4 Roof panel, 5 Roof molding, 10, 20, 30 Vehicle roof structure, 21 HR main body, 22 HR slope, 23 HR flange, 41 RP Main body, 42 RP inclined part, 43 RP flange part.

Claims (1)

On the roof of the vehicle, roof side members that are placed at both ends on the outside in the vehicle width direction and extend in the front-rear direction,
Header reinforcement that extends in the vehicle width direction and connects to the left and right roof side members,
A vehicle roof structure comprising a roof panel that is adhered onto the header reinforcement with an adhesive.
The header reinforcement is
The HR body that extends in the vehicle width direction and
An HR inclined portion that inclines downward from the end portion of the HR main body portion that is outward in the vehicle width direction toward the outside in the vehicle width direction.
An HR flange portion extending from the outer end portion of the HR inclined portion in the vehicle width direction toward the outer side in the vehicle width direction and superposed on the roof side member and connected to the roof side member is provided.
The roof panel is
The RP main body that constitutes the top surface of the vehicle and
An RP inclined portion that is inclined downward from the outer end portion of the RP main body portion in the vehicle width direction toward the outer side in the vehicle width direction, and is overlapped and adhered on the HR inclined portion.
The RP flange portion extending from the outer end portion of the RP inclined portion in the vehicle width direction toward the outer side in the vehicle width direction and superposed on the HR flange portion is provided.
The RP inclined portion is arranged in parallel with the HR inclined portion, and the angle formed by the HR inclined portion and the horizontal plane and the angle formed by the RP inclined portion and the horizontal plane are both 65 degrees or less. The characteristic roof structure for vehicles.

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