JP6206372B2 - VEHICLE ROOF STRUCTURE AND METHOD FOR PRODUCING VEHICLE ROOF PANEL - Google Patents

Description

  The present invention relates to a vehicle roof structure and a method for manufacturing a vehicle roof panel, and more particularly to a vehicle roof structure in which the roof panel is made of aluminum or an aluminum alloy, and a method for manufacturing the vehicle roof panel.

  In recent years, lightweight materials such as aluminum and aluminum alloy materials are sometimes used for vehicle roof panels in order to reduce the weight. In that case, the coefficient of thermal expansion increases, but if the difference in coefficient of thermal expansion between the roof panel and the body frame member increases, the roof panel may be distorted after the manufacturing process in a high-temperature environment after assembling the two. There is sex.

  In order to prevent such distortion, it is conceivable that the roof panel made of aluminum or aluminum alloy is separately subjected to a process in a high temperature environment such as a paint drying baking process and assembled in an assembly process instead of a welding process. However, an additional process is required, and costs and labor are increased.

  Therefore, in Patent Document 1, the rigidity is increased by joining another plate member to the end of the roof panel to suppress the occurrence of distortion. However, in the configuration of Patent Document 1, the number of parts increases because another member is added. Further, Patent Document 2 discloses a configuration in which the roof bow is joined to the roof panel. However, the roof bow is not joined to the entire front and rear direction of the roof panel. It is less effective for suppressing distortion during

JP 2010-111346 A JP 2004-131062 A

  The present invention has been made in consideration of the above facts, and a vehicle roof structure capable of suppressing distortion of a roof panel made of aluminum or an aluminum alloy without increasing the number of parts, and the vehicle. It is an object of the present invention to obtain a method for manufacturing a vehicle roof panel constituting a roof structure for a vehicle.

  According to a first aspect of the present invention, there is provided a roof structure for a vehicle according to the present invention, wherein a roof main body portion constituting an outer plate of the vehicle roof, a vehicle width direction end portion of the roof main body portion bent downward in the vehicle, and arranged in the vehicle vertical direction. A standing wall portion, a joint portion extending from the lower end of the standing wall portion to the outside in the vehicle width direction, and the roof body portion, and the thickness of the joint portion and the standing wall portion of the roof body portion A roof panel made of aluminum or aluminum alloy having a thickness greater than the thickness of the central portion in the vehicle width direction and reinforcing the joint and the standing wall, and the roof panel has a different thermal expansion coefficient, and the roof A vehicle body skeleton member extending along the vehicle longitudinal direction at both ends of the panel in the vehicle width direction and joined to the joint portion of the roof panel.

  According to a first aspect of the present invention, there is provided a vehicle roof structure including a roof main body portion constituting an outer plate of the vehicle roof, a standing wall portion bent downward from the vehicle width direction end portion of the roof main body portion and arranged in the vehicle vertical direction, and the standing wall An aluminum or aluminum alloy roof panel having a joint formed so as to extend outward from the lower end of the portion in the vehicle width direction is provided. And the junction part and the standing wall part are reinforced by making the thickness thicker than the thickness of the vehicle width direction center part of a roof main-body part by the reinforcement part. Since the reinforcing part is formed integrally with the roof main body part, the joint part and the standing wall part can be reinforced without increasing the number of parts.

  In the vehicle roof structure of the present invention described in claim 2, the reinforcing portion includes a folded portion in which a vehicle width direction end portion of the roof panel is folded and the roof panel is overlapped with an outer panel portion and an inner panel portion. It is characterized by being comprised.

  The roof structure for a vehicle according to the second aspect of the present invention is configured to form a folded portion in which a roof panel is folded back at a vehicle width direction end portion to overlap the roof panel with an outer panel portion and an inner panel portion. Constitutes a reinforcing part. In this manner, the reinforcing portion can be easily formed by folding the end portion of the roof panel in the vehicle width direction.

  The vehicle roof structure of the present invention described in claim 3 is characterized in that an adhesive is interposed between the outer panel portion and the inner panel portion.

  According to the vehicle roof structure of the third aspect, since the outer panel portion and the inner panel portion are joined by the adhesive, the rigidity of the folded portion formed by overlapping two sheets is increased, and the reinforcing effect can be enhanced.

  The roof structure for a vehicle according to a fourth aspect of the present invention is the vehicle roof structure according to the present invention, wherein the reinforcing portion has a thickness of a body end portion constituting a vehicle width direction end portion of the roof main body portion at a center portion in the vehicle width direction of the roof main body portion. It is formed so as to further include an end portion reinforcing portion that is thicker than the thickness to be reinforced.

According to the vehicle roof structure of the fourth aspect, the reinforcing effect can be enhanced by increasing the thickness of the main body end portion constituting the end portion of the roof main body in the vehicle width direction.

  According to a fifth aspect of the present invention, the roof structure for a vehicle of the present invention is spanned between the vehicle body skeleton members at both ends in the vehicle width direction, and the end reinforcing portion of the roof panel is provided from the vehicle lower side via an elastic adhesive. A roof reinforcement for supporting is further provided.

In the vehicle roof structure according to the fifth aspect, the end reinforcement portion is supported by the roof reinforcement via the elastic adhesive, and the vehicle width direction outer side is reinforced by the reinforcement portion from the support portion by the roof reinforcement. As a result, the portion of the roof panel on the outer side in the vehicle width direction that is more likely to be distorted than the elastic adhesive is reinforced by the reinforcing portion, thereby enhancing the reinforcing effect.

  The roof structure for a vehicle of the present invention described in claim 6 is characterized in that a step is formed on the standing wall portion so that the vehicle lower side protrudes outward in the vehicle width direction.

According to the vehicle roof structure of the sixth aspect, the rigidity of the standing wall portion is enhanced by the step, and therefore the reinforcing effect can be enhanced.

According to a seventh aspect of the present invention, there is provided a method for manufacturing a vehicle roof panel according to the present invention, comprising an inner panel portion constituting an end portion in the vehicle width direction of an aluminum or aluminum alloy roof plate member and a continuous inner side in the vehicle width direction from the inner panel portion. An adhesive is applied to at least one of the outer panel portions to be formed, and the end portion of the roof plate member is folded back so that the outer panel portion and the inner panel portion overlap with the adhesive interposed therebetween to form a two-layer folded portion. The roof plate material is pressed to produce a roof panel.

  According to the method for manufacturing a vehicle roof panel according to the seventh aspect, since the folded portion is formed at the vehicle width direction end portion of the roof plate material and then press working is performed, the shape of the reinforced folded portion can be easily obtained. It can be formed into a shape.

The method for manufacturing a roof panel for a vehicle according to the present invention described in claim 8 can be applied to an outer panel portion which is continuous from the inner panel portion constituting the vehicle width direction end portion of the roof plate material made of aluminum or aluminum alloy to the inner side in the vehicle width direction. Forming an upright wall portion arranged in a vehicle vertical direction, forming a step in the upright wall portion, applying an adhesive to at least one of the inner panel portion and the outer panel portion, and the outer panel portion and the inner panel portion; A roof panel is manufactured by folding the end portion of the roof plate so as to overlap each other with the adhesive interposed therebetween to form a folded portion of two sheets.

  According to the method for manufacturing a roof panel for a vehicle according to claim 8, after the standing wall portion having a step is formed on the outer panel portion of the roof plate material, the adhesive is applied to overlap the outer panel portion and the inner panel portion. Therefore, the inner panel portion can be shaped differently from the outer panel portion. Therefore, the rigidity can be increased by making adjustments such as increasing the filling amount of the adhesive using the stepped portion of the outer panel portion.

  According to the vehicle roof structure of the first aspect of the present invention, distortion of the roof panel made of aluminum or aluminum alloy can be suppressed without increasing the number of parts.

  According to the vehicle roof structure of the second aspect of the present invention, the reinforcing portion can be configured with a simple configuration.

  According to the vehicle roof structure of the third aspect of the present invention, the rigidity of the folded portion is increased by the adhesive, and the reinforcing effect can be enhanced.

  According to the vehicle roof structure of the fourth aspect of the present invention, the end portion reinforcing portion can be provided to enhance the reinforcing effect.

  According to the vehicle roof structure of the fifth aspect of the present invention, the reinforcing effect can be enhanced.

  According to the vehicle roof structure of the sixth aspect of the present invention, the reinforcing effect can be enhanced.

  According to the vehicle roof panel manufacturing method of the seventh aspect of the present invention, the folded portion can be easily formed into a desired shape.

  According to the vehicle roof panel manufacturing method of the present invention, the rigidity can be increased by adjusting the filling amount of the adhesive.

It is a perspective view which shows the upper part of the vehicle roof which concerns on the 1st Embodiment of this invention. It is a longitudinal cross-sectional view of the vehicle roof along the AA line in FIG. It is a longitudinal cross-sectional view of the vehicle roof along the BB line in FIG. It is explanatory drawing explaining the procedure (A)-(C) of the manufacturing method of the roof panel which concerns on the 1st Embodiment of this invention. It is a longitudinal cross-sectional view of the modification of the roof panel which concerns on the 1st Embodiment of this invention. It is a longitudinal cross-sectional view along the AA line in FIG. 1 of the vehicle roof which concerns on the 2nd Embodiment of this invention. It is a longitudinal cross-sectional view along the BB line in FIG. 1 of the vehicle roof which concerns on the 2nd Embodiment of this invention. It is explanatory drawing explaining the procedure (A)-(C) of the manufacturing method of the roof panel which concerns on the 2nd Embodiment of this invention. It is a longitudinal cross-sectional view which shows a deformation | transformation state when a load acts on the roof panel which concerns on a comparative example.

  [First Embodiment]

  Hereinafter, embodiments of a vehicle roof structure and a vehicle roof manufacturing method according to the present invention will be described with reference to the drawings. Note that an arrow UP shown in the drawing indicates the vehicle upper side, and an arrow OUT indicates the vehicle width direction outer side.

  FIG. 1 is a perspective view showing an upper portion of a vehicle to which the vehicle roof structure according to the present embodiment is applied. 2 shows a cross-sectional view taken along line AA of FIG. As shown in FIG. 1, the vehicle roof 10 includes a roof panel 30 that covers the cabin and a roof side rail 12 as a vehicle skeleton member provided on both sides in the vehicle width direction.

  A pair of left and right roof side rails 12 are disposed along the vehicle front-rear direction. The roof side rail 12 includes a rail inner panel, a rail outer reinforcement, and a side outer panel. Here, only a part of the side outer panel is illustrated and described.

  The roof side rail 12 includes a side main body portion 12A, a side standing wall portion 12B, and a side joint portion 12C. The side main body portion 12 </ b> A forms the outer surface of the roof side rail 12. The side standing wall portion 12B is formed to bend from the vehicle width direction inner side end portion of the side main body portion 12A to the vehicle lower side. A step 12BD is formed on the side standing wall 12B so that the vehicle lower side of the step protrudes inward in the vehicle width direction. The side joint 12C is extended inward in the vehicle width direction from the lower end of the side upright wall 12B.

  The roof panel 30 is formed in a gently curved shape that is convex toward the vehicle upper side, and includes a roof main body 32 that covers the cabin from the vehicle upper side. The roof main body 32 constitutes a main body end 32A on the outer side in the vehicle width direction from a position corresponding to the elastic adhesive 60 applied on the outermost side in the vehicle width direction on the roof reinforcement 50 described later. Further, standing wall portions 34 and joint portions 36 are formed at both ends of the roof panel 30 in the vehicle width direction. The standing wall portion 34 is bent toward the vehicle lower side and is disposed in the vehicle vertical direction. A step 34 </ b> D is formed on the standing wall 34 so that the vehicle lower side of the step protrudes outward in the vehicle width direction. The standing wall portion 34 is disposed so as to face the side standing wall portion 12B of the roof side rail 12, and a molding mounting groove 18 is formed between the side standing wall portion 12B and the standing wall portion 34. A roof molding 20 described later is disposed in the molding mounting groove 18.

  The joint portion 36 extends outward from the lower end of the standing wall portion 34 in the vehicle width direction. The joining portion 36 is disposed on the upper surface of the side joining portion 12C, and the joining portion 36 and the side joining portion 12C are joined by spot welding. This joint portion constitutes the bottom of the molding mounting groove 18.

  The main body end portion 32A, the standing wall portion 34, and the joint portion 36 are formed by overlapping two pieces, with the vehicle width direction end portion of the roof panel 30 folded back to the vehicle inner side. The entire folded portion is hereinafter referred to as “folding portion 40”. Further, the roof panel 30 constituting the outside of the folded portion 40 is referred to as an “outside panel portion 42”, and the roof panel 30 constituting the inside of the folded portion 40 is referred to as an “inside panel portion 44”. The outer panel portion 42 and the inner panel portion 44 are joined via an adhesive 48.

  The roof panel 30 is made of aluminum or an aluminum alloy. The roof side rail 12 is formed of a steel plate. Therefore, the thermal expansion coefficient of the roof panel 30 is larger than the thermal expansion coefficient of the roof side rail 12.

  Between the pair of roof side rails 12, a plurality of roof reinforcements 50 (only one is displayed in FIG. 1) are bridged along the vehicle width direction. The roof reinforcement 50 is also made of aluminum or an aluminum alloy. FIG. 3 is a cross-sectional view taken along line BB in FIG. As shown in FIG. 3, the roof reinforcement 50 has a main body reinforcing portion 52, a flange portion 54, an inclined portion 56, and a bottom surface joining portion 58. The main body reinforcing portion 52 is elongated in the vehicle width direction and has a substantially U-shaped cross section with the vehicle upper side opened as viewed from the vehicle width direction. The flange portion 54 is bent from the upper end of the main body reinforcing portion 52 to the outside of the U shape. The main body reinforcing portion 52 and the flange portion 54 have a substantially hat-shaped cross section. The inclined portions 56 are formed at both ends in the width direction of the main body reinforcing portion 52, and the upper ends of the main body reinforcing portions 52 are lowered so as to be inclined obliquely downward from the vehicle width direction end portion of the flange portion 54 toward the vehicle width direction outer side. It is formed as follows. The bottom surface joint portion 58 is formed by extending the bottom portion of the main body reinforcing portion 52 outward in the vehicle width direction.

The bottom joint 58 is disposed on the top surface of the side joint 12C. The joint portion 36 of the roof panel 30 is disposed on the upper surface of the bottom surface joint portion 58. The bottom surface joining portion 58 and the joining portion 36 can be joined by spot welding joining or rivet joining.

  An elastic adhesive 60 is applied on the vehicle width direction end of the flange portion 54 of the roof reinforcement 50. The elastic adhesive 60 is interposed between the flange portion 54 and the main body end portion 32 </ b> A of the roof panel 30 and bonded thereto. The elastic adhesive is applied to a plurality of locations in the vehicle width direction of the roof reinforcement 50, but here, the elastic adhesive is the one that is disposed on the outermost side in the vehicle width direction. The roof panel 30 is elastically supported on the flange portion 54 via the elastic adhesive 60. By supporting through the elastic adhesive 60, the vibration of the roof panel 30 can be absorbed.

  In the molding mounting groove 18 formed between the roof side rail 12 and the roof panel 30, a long roof molding 20 is disposed along the vehicle front-rear direction. As shown in FIGS. 2 and 3, the roof molding 20 includes a molding body 22, a neck portion 24, and a lip portion 26.

  The longitudinal direction of the molding body 22 is set along the outer edge of the roof panel 30 in the vehicle width direction, and the width dimension is set larger than the opening width of the molding mounting groove 18. The upper surface of the molding body 22 has a gentle arc shape that protrudes upward. The end in the width direction of the molding body 22 is disposed on the step 12BD and the step 34D, respectively. The molding mounting groove 18 is covered by the molding body 22.

  The neck part 24 protrudes from the center of the molding body 22 in the width direction, and the molding body 22 extends in the same direction as the longitudinal direction. A lip portion 26 is formed at the lower end of the neck portion 24. The lip portion 26 is relatively thin and extends from the lower end of the neck portion 24 to both ends in the width direction. One of the lip portions 26 is in close contact with the side standing wall portion 12B, and the other is in close contact with the standing wall portion 34. The joint 36 and the roof molding 20 are separated from each other.

  Next, a method for manufacturing the roof panel 30 will be described.

  First, as shown in FIG. 4A, an adhesive 48 is applied to a portion that becomes the outer panel portion 42 on the inner side in the vehicle width direction from the folding position P of the roof plate member 30A before the roof panel 30 is processed. . Next, as shown in FIG. 4B, the portion that becomes the inner panel portion 44 is folded back inward in the vehicle width direction and folded in half so as to sandwich the adhesive 48. Then, as shown in FIG. 4C, the joining portion 36, the standing wall portion 34, and the main body end portion 32A are formed by pressing.

  When the roof panel 30 is assembled to the vehicle body, an elastic adhesive is applied to a predetermined portion on the flange portion 54 of the roof reinforcement 50, and the roof panel 30 and the roof panel 30 are disposed on the roof panel 30 to be elastically joined to each other. Further, the joint portion 36 of the roof panel 30 is disposed on the bottom joint portion 58 of the roof reinforcement 50 and joined by spot welding. And the joining part 36 of the roof panel 30 in the state where the roof reinforcement 50 is joined is arranged on the side joining part 12C of the roof side rail 12 and joined by spot welding. Thereby, the roof side rail 12 is assembled | attached to a vehicle body. Thereafter, the roof molding 20 is fitted into the molding mounting groove 18 to complete the assembly of the vehicle roof 10.

  The vehicle body is manufactured by performing a process under a high temperature environment such as a paint drying baking process on the vehicle body to which the roof panel 30 is assembled as described above.

In the vehicle roof 10 according to the present embodiment, the folded portion 40 of the roof panel 30, that is, the joint portion 36, the standing wall portion 34, and the main body end portion 32 </ b> A are overlapped, and the vehicle roof side closer to the vehicle center side than the main body end portion 32 </ b> A. The roof body 32 is thicker than the portion 32 and is reinforced. Therefore, even if the processing is performed in a high-temperature environment after the roof side rails 12 made of steel plates having different thermal expansion coefficients are assembled, distortion of the roof panel 30 made of aluminum or aluminum alloy can be suppressed.
In the present embodiment, the joint portion 36, the standing wall portion 34, and the main body end portion 32A are reinforced as a double stack, but the main body end portion 32A is not double stacked, and only the joint portion 36 and the standing wall portion 34 are folded back. You may comprise a part.

  Further, in the present embodiment, the end portion in the vehicle width direction of the roof panel 30 is folded to form the folded portion 40 integrally with the roof main body portion 32, and thus the above-described reinforcement is performed without increasing the number of parts. be able to.

Moreover, in this embodiment, since it reinforces by making two sheets overlap and making thickness thick, the influence on the appearance of an external appearance can be avoided.

  Moreover, in this embodiment, since the outer side panel part 42 and the inner side panel part 44 are adhere | attached with the adhesive agent 48, the rigidity of the folding | returning part 40 made into two sheets piles up, and it suppresses distortion of the roof panel 30 more reliably. be able to.

  Further, in the present embodiment, the outer side in the vehicle width direction is reinforced from the portion elastically supported by the roof reinforcement 50 as the folded portion 40. As a result, the portion that is more likely to be distorted on the outer side in the vehicle width direction than the elastic adhesive 60 is reinforced, so that the distortion of the roof panel 30 can be more reliably suppressed.

  Moreover, in this embodiment, since the level | step difference 34D is formed in the standing wall part 34, the rigidity of the standing wall part 34 becomes high. As in the roof panel 90 of the comparative example shown in FIG. 9, when the roof panel 90 is expanded by heat, when the roof panel 90 is expanded by heat, the load K is applied to move the standing wall portion 94 outward in the vehicle width direction. It is easy to fall down. In the present embodiment, this fall can be suppressed by the step 34D. Furthermore, by having this level difference 34D, the lower surface of the molding body 22 can be brought into contact with the level difference portion, and the roof molding 20 can be easily arranged.

  In the present embodiment, the end portion is folded to form two sheets, but as shown in FIG. 5, separate panels 46 may be integrally joined to form two sheets. In this case, the outer panel 42 and the separate panel 46 are integrally joined to each other by welding at the joint 36, and the standing wall 34 and the main body end 32 </ b> A are joined via the adhesive 48, and the folded portion 40. Configure. It can be formed by joining the panel 46 before press working and forming the standing wall portion 34 by press working.

  In addition, the portions corresponding to the joint portion 36, the standing wall portion 34, and the main body end portion 32A of the roof panel 30 are formed not by two sheets but by joining thick plate members with a tailored blank and integrally formed with the roof main body portion 32. It may be reinforced by doing.

[Second Embodiment]

  Next, a second embodiment of the present invention will be described. In the present embodiment, the same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. The roof panel 70 of the present embodiment is different from the first embodiment in the configuration of the standing wall portion, and the other configurations are the same as those in the first embodiment.

  As shown in FIGS. 6 and 7, the roof panel 70 of the present embodiment includes a standing wall portion 74 instead of the standing wall portion 34 of the first embodiment. In the standing wall portion 74, a step 74 </ b> D is formed in the outer panel portion 42, and no step is formed in the inner panel portion 44. A space 74R having a substantially triangular cross section is formed between the outer panel portion 42 and the inner panel portion 44 at the lower portion of the step 74D, and the adhesive agent 48 is filled in the space 74R.

  Next, a method for manufacturing the roof panel 70 will be described.

  First, as shown in FIG. 8A, a standing wall portion 74 and a step 74D are formed in a portion to be the outer panel portion 42 of the roof plate member 70A before the roof panel 70 is processed. Next, as shown in FIG. 8B, an adhesive 48 is applied to the inner side surface of the outer panel portion 42. At this time, the adhesive 48 is applied to the step 74D so that the step is filled and flattened. Then, as shown in FIG. 8C, the portion that becomes the inner panel portion 44 is folded back inward in the vehicle width direction and folded in half so as to sandwich the adhesive 48. Thereby, the joining part 76 and the main body end part 72A are also formed.

  The roof panel 70 can be assembled to the vehicle body in the same manner as in the first embodiment. The vehicle body is manufactured by performing a process under a high temperature environment such as a paint drying baking process on the vehicle body on which the roof panel 70 is assembled in this manner.

  According to the present embodiment, the amount of the adhesive 48 filled in the standing wall portion 74 can be increased to increase the thickness of the standing wall portion 74, so that the distortion of the roof panel 70 can be more reliably suppressed. . In addition, the falling of the standing wall 74 can be more reliably suppressed.

10 Vehicle roof (Vehicle roof structure)
12 Roof side rail (body frame member)
30 Roof panel 30A Roof plate member 32 Roof main body portion 32A Main body end portion 34D Step 34 Standing wall portion 36 Joint portion 40 Folding portion 42 Outer panel portion 44 Inner panel portion 48 Adhesive 50 Roof reinforcement 60 Elastic adhesive 70 Roof panel 70A Roof plate material 72A Body end 74 Standing wall 76 Joint

Claims (8)

A roof main body constituting an outer plate of the vehicle roof;
A standing wall portion bent downward from the vehicle width direction end of the roof main body portion and disposed in the vehicle vertical direction;
A joint extending from the lower end of the standing wall portion to the vehicle width direction outside;
A reinforcing portion that is integrally formed with the roof main body portion, and has a thickness of the joint portion and the standing wall portion that is thicker than a thickness of a central portion in the vehicle width direction of the roof main body portion, and reinforces the joint portion and the standing wall portion. When,
A roof panel made of aluminum or aluminum alloy having
A vehicle body skeleton member that has a different thermal expansion coefficient from the roof panel, extends along the vehicle longitudinal direction at both ends of the roof panel in the vehicle width direction, and is joined to the joint portion of the roof panel;
Vehicle roof structure with   The said reinforcement part is comprised by the folding | returning part which turned up the vehicle width direction edge part of the said roof panel, and made the said roof panel into two sheets of the outer side panel part and the inner side panel part, It is characterized by the above-mentioned. Vehicle roof structure.   The vehicle roof structure according to claim 2, wherein an adhesive is interposed between the outer panel portion and the inner panel portion.   The reinforcing portion further includes an end reinforcing portion that reinforces the thickness of the main body end portion constituting the vehicle width direction end portion of the roof main body portion to be thicker than the thickness of the roof width direction central portion of the roof main body portion. The roof structure for a vehicle according to any one of claims 1 to 3, wherein the roof structure for a vehicle is formed.   The vehicle further comprises a roof reinforcement that spans between the vehicle body skeleton members at both ends in the vehicle width direction and supports the end reinforcing portion of the roof panel from the lower side of the vehicle via an elastic adhesive. Item 5. The vehicle roof structure according to Item 4.   The vehicle roof structure according to any one of claims 1 to 5, wherein a step is formed in the standing wall portion such that a lower side of the vehicle projects outward in the vehicle width direction. Applying an adhesive to at least one of the inner panel portion constituting the vehicle width direction end of the roof plate material made of aluminum or aluminum alloy and the outer panel portion continuous from the inner panel portion to the vehicle width direction inside,
Folding the end of the roof plate so that the outer panel and the inner panel overlap with the adhesive sandwiched between them, forming a double folded portion,
A roof panel is manufactured by pressing the roof plate material,
A method for manufacturing a vehicle roof panel. A standing wall portion is formed in the vertical direction of the vehicle from the inner panel portion constituting the vehicle width direction end portion of the roof plate material made of aluminum or aluminum alloy to the outer panel portion continuous in the vehicle width direction, and a step is formed on the standing wall portion. Form the
Applying an adhesive to at least one of the inner panel part and the outer panel part,
A roof panel is produced by folding the end of the roof plate material so that the outer panel portion and the inner panel portion overlap with the adhesive interposed therebetween to form a double-folded folded portion;
A method for manufacturing a vehicle roof panel.

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