JP2008302769A - Automobile roof structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an automobile roof structure hardly carbonizing an adhesive and easily positioning in a vehicle width direction a roof panel to a side outer panel. <P>SOLUTION: A guide plate 14 projecting from a second bottom surface 8 and having an end 14c abutting on the first vertical wall 5 of the side outer panel 2 is formed at a boundary B between an adhesion area A as at least one end in a vehicle longitudinal direction and a brazing area C as a general portion on the side of a center in the vehicle longitudinal direction from the adhesion area A. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an automobile roof structure.

  2. Description of the Related Art A roof for an automobile is known in which a groove portion for attaching a roof molding is formed along the front-rear direction between a roof panel and a side outer panel.

  A first bottom surface portion is formed on the inner end in the vehicle width direction of the side outer panel, and is positioned below through the vertical wall. A second bottom surface is positioned on the outer end in the vehicle width direction of the roof panel in the lower direction through the vertical wall. A bottom surface portion is formed, and a groove portion is formed by overlapping and coupling the second bottom surface portion to the upper surface of the first bottom surface portion (see, for example, Patent Document 1).

  The side outer panel and roof panel are made of different metals and cannot be spot welded. To make the width of the groove as narrow as possible, the end of the second bottom surface and the first bottom surface are joined by brazing such as laser brazing. is doing.

However, there are steps and gaps at the front and rear ends of the groove, and bonding by brazing is not possible. Therefore, before bonding by brazing, an adhesive is interposed between the first bottom surface and the second bottom surface. They are connected with rivets and screws.
JP 2004-306676 A

  However, in such a conventional technique, it is necessary to braze in the very vicinity of the adhesive, but if it is attempted to join normally, the adhesive may be carbonized by heat for brazing. is there.

  Further, the roof panel has a structure in which the second bottom surface portion is overlapped and joined to the top surface of the first bottom surface portion of the side outer panel in the vertical direction, so that the position in the horizontal direction (vehicle width direction) is not fixed and is aligned. It was difficult.

  The present invention has been made by paying attention to such a conventional technique, and provides a roof structure of an automobile that prevents the adhesive from being carbonized by heat and can be easily positioned in the vehicle width direction of the roof panel with respect to the side outer panel. Is.

  The present invention provides a roof panel in which a first bottom surface portion, which is positioned below a first vertical wall, is formed along a front-rear direction at an inner end in a vehicle width direction of a side outer panel, and is formed of a material different from the side outer panel. A second bottom surface portion located below the second vertical wall is formed along the front-rear direction at the outer end in the vehicle width direction of the vehicle, and the first bottom surface portion and the second bottom surface portion are overlapped and joined. Thus, the roof structure of the automobile has a groove formed along the front-rear direction. At least one end portion in the front-rear direction of the groove portion, the end of the second bottom surface portion is coupled to the upper surface of the first bottom surface portion with an adhesive, and a general portion as a portion excluding the one end portion of the groove portion is The first bottom surface portion and the second bottom surface portion are joined by brazing. Then, at the boundary portion between the one end portion and the general portion, the guide plate protrudes from the second bottom surface portion, and the tip portion of the guide plate contacts the first vertical wall of the side outer panel.

  According to the present invention, since the guide plate is formed at the boundary portion of the second bottom surface portion, the guide plate can suppress heat transfer to the adhesive material, and carbonization of the adhesive material can be prevented. Moreover, since the front-end | tip part of a guide plate contact | abuts to the vertical wall of a side outer panel, the positioning in the vehicle width direction with respect to the side outer panel of a roof panel can be performed.

  FIG. 1 is a perspective view showing a roof to which a roof molding is attached, FIG. 2 is a view of a groove portion of the roof as seen from above, FIG. 3 is an exploded perspective view showing a front end portion of the groove portion, and FIG. 5 is a cross-sectional view taken along the line SA-SA in FIG. 2, FIG. 6 is a cross-sectional view taken along the line SB-SB in FIG. 2, and FIG. 7 is SC-SC shown in FIG. It is sectional drawing which follows a line.

  The roof of an automobile is composed of a roof panel 1 and a side outer panel 2. The roof panel 1 and the side outer panel 2 are made of different metals. For example, the roof panel 1 is made of aluminum, and the side outer panel 2 is made of iron.

  As shown in FIG. 1, two grooves 3 along the front-rear direction are formed between the roof panel 1 and the side outer panels 2 located on both sides in the vehicle width direction. A decorative roof molding 4 is attached to the groove 3. Since the left and right groove portions 3 and the roof molding 4 are symmetrical and have the same structure, only the left side will be described below.

  As shown in FIG. 7, a first bottom surface portion 6 that is positioned below the first vertical wall 5 is formed at the inner end in the vehicle width direction of the side outer panel 2, and the outer end in the vehicle width direction of the roof panel 1. The part is formed with a second bottom surface part 8 positioned below via the second vertical wall 7, and the groove part 3 is formed by overlapping the second bottom surface part 8 on the first bottom surface part 6. Is formed. The terminal 9 of the second bottom surface portion 8 is in the middle of the top surface of the first bottom surface portion 6 in the vehicle width direction and does not reach the first vertical wall 5.

  The front and rear end portions (see FIG. 2) of the first bottom surface portion 6 and the second bottom surface portion 8 have portions that are formed higher by a step 10 as shown in FIG. Thus, a front surface portion 12 (see FIG. 2) and a rear surface portion 13 (see FIG. 2) for fixing the upper ends of the front window glass 11 (see FIG. 1) and the rear window glass (not shown) are continuously formed.

  As shown in FIG. 3, in the portion formed higher by the step 10, both ends in the vehicle front-rear direction are adhesive areas A (mechanical coupling areas A), and the front-rear inner portion including the step 10 is a boundary. Part B. And between the front and back level | step differences 10 is a general part, and this range is the brazing area C (refer FIG. 2).

  As shown in FIG. 3, a guide plate 14 is formed on the boundary portion B at a position outside the front-rear direction. The guide plate 14 has a proximal end portion 14a formed substantially parallel to the first vertical wall 5 at a predetermined interval from the end 9 of the second bottom surface portion 8 in the boundary portion B, and substantially from the proximal end portion 14a. An intermediate portion 14b that is bent at a right angle and extends in a substantially horizontal direction, and a tip portion 14c that is bent upward at a substantially right angle from the intermediate portion 14b, has a crank shape as a whole. The front end portion 14c of the guide plate 14 is provided in parallel along the first vertical wall 5, and when the roof panel 1 is in the normal position in the vehicle width direction with respect to the side outer panel 2, it is shown in FIGS. As described above, the side outer panel 2 is in contact with the first vertical wall 5.

  The guide plate 14 is formed so as to rise from the terminal 9 of the second bottom surface portion 8 so that the terminal 9 of the second bottom surface portion 8 is exposed, and a seal is provided between the guide plate 14 and the side outer panel 2. A space S (see FIG. 5) for inserting the nozzles 16 (see FIG. 6) for the paint seals P1 and P2 as means is also formed.

  As shown in FIG. 3, the second bottom surface portion 8 and the first bottom surface portion 6 in the bonding area A are respectively formed with coupling holes 17 and 18 that coincide with each other when they are in normal positions in the front-rear direction and the vehicle width direction. Has been. In addition, a coupling hole 19 (see FIG. 2) for coupling to a vehicle body structure (not shown) is also formed in the front surface portion 12 and the rear surface portion 13.

  Next, the assembling procedure of the roof will be described together with the operation.

  The adhesive 20 is applied to the adhesive areas A on the both sides in the vehicle front-rear direction of the first bottom surface portion 6 of the side outer panel 2 assembled earlier. The adhesive 20 is applied only to the bonding area A and not applied to the boundary portion B.

  Next, the second bottom surface portion 8 of the roof panel 1 is placed on the first bottom surface portion 6 to which the adhesive material 20 is applied. By placing the first bottom surface portion 6 on the second bottom surface portion 8, the front end portions 14 c of the guide plates 14 formed on the left and right sides of the roof panel 1 abut against the first vertical wall 5 of the side outer panel 2. Therefore, the roof panel 1 is positioned at a normal position at least in the vehicle width direction with respect to the side outer panel 2.

  Since the guide plate 14 is formed in the front-rear direction, the posture of the roof panel 1 along the front-rear direction is also determined. Since the front end portion 14c of the guide plate 14 has a bent shape along the first vertical wall 5 of the side outer panel 2, the contact state between the front end portion 14c and the first vertical wall 5 is stable, and in the vehicle width direction. Positioning is reliable.

  Since the posture of the side outer panel 2 along the front-rear direction is determined and positioning in the vehicle width direction is performed, the roof panel 1 is moved back and forth thereafter, so that the first bottom surface portion 6 and the second bottom surface portion 8 are joined. The holes 17 and 18 can be easily matched. Then, the matching coupling holes 17 and 18 are coupled to each other by the rivet 21. The coupling holes 19 in the front surface portion 12 and the rear surface portion 13 are also coupled to the vehicle body structure by another rivet.

  Next, the brazing area C on the center side in the vehicle longitudinal direction is joined. A brazing material 22 is applied by laser brazing along the terminal 9 of the second bottom surface portion 8 in the brazing area C. The terminal 9 of the second bottom surface portion 8 and the first bottom surface portion 6 are joined by the brazing material 22. Laser brazing is an operation involving a high temperature (about 600 ° C.), but since there is a boundary B as a buffer range between the brazing area C and the bonding area A, the heat of the brazing area C is bonded to the bonding area. The deterioration of the adhesive 20 can be prevented without being directly transmitted to the adhesive 20 of A.

  Further, since the guide plate 14 is formed in a state protruding from the boundary portion B adjacent to the brazing area C in the space of the groove portion 3, the guide plate 14 functions as a heat radiating plate. The amount of heat transfer to can also be reduced.

  Finally, paint seals P1 and P2 as sealing means are applied to the terminal 9 in the second bottom surface portion 8 of the roof panel 1.

  First, a paint seal P1 is partially applied to the boundary portion B where neither the adhesive material 20 nor the brazing material 22 is present. When the partial paint seal P1 is applied to the boundary B, the guide plate 14 is provided, so that the operator can easily recognize the position of the boundary B. That is, the area between the guide plate 14 and the step 10 is a range where the paint seal P1 is applied.

  Further, since the space S into which the nozzle 16 can be inserted is formed between the guide plate 14 and the side outer panel 2, the nozzle 16 is inserted therein, and the second bottom surface portion 8 exposed in the space S is exposed. A partial paint seal P <b> 1 can be applied to the terminal 9 using the nozzle 16.

  Next, the paint seal P <b> 2 is continuously applied to all the areas of the adhesion area A, the boundary B, and the brazing area C from the front to the rear. Only the boundary B is a double seal of the paint seals P1 and P2. The waterproofness between the 1st bottom face part 6 and the 2nd bottom face part 8 is ensured by the paint seals P1 and P2.

  Finally, the roof molding 4 is installed in the groove 3. A notch (not shown) that engages with the guide plate 14 is formed on the lower surface of the roof molding 4. By engaging this with the guide plate 14, the roof molding 4 is also positioned in the front-rear direction. be able to.

  Next, the effects of this embodiment will be listed.

  (1) In the present embodiment, the second bottom surface portion 8 of the boundary portion B between the brazing area C and the bonding area A protrudes from the second bottom surface portion 8 and the front end portion 14c is the first vertical portion of the side outer panel 2. A guide plate 14 that contacts the wall 5 is formed. Therefore, heat transfer to the adhesive material in the adhesive area A can be suppressed, and carbonization of the adhesive material can be prevented. Further, since the front end portion 14c of the guide plate 14 contacts the first vertical wall 5 of the side outer panel 2, the roof panel 1 can be positioned with respect to the side outer panel 2 in the vehicle width direction.

  (2) In this embodiment, since the guide plate 14 is formed to rise from the terminal 9 of the second bottom surface portion 8, the terminal 9 of the second bottom surface portion 8 is in an exposed state, and the sealing work is also reliable. Can be done.

  (3) Moreover, in this embodiment, the said adhesion area A is provided in the vehicle front-back direction both ends, the said boundary part B is provided in the vehicle front-back direction both sides, and the guide plate 14 is formed in each of the said boundary part B. ing. Therefore, the posture along the front-rear direction of the roof panel 1 is determined, and the positioning of the roof panel 1 with respect to the side outer panel 2 in the vehicle width direction is further ensured.

  (4) In the present embodiment, the guide plate 14 is formed so as to rise substantially in parallel with the first vertical wall 5 from the second bottom surface 8 at a predetermined interval. Therefore, a space S is formed between the guide plate 14 and the side outer panel 2 in which the nozzles 16 for ejecting the paint seals P1 and P2 as sealing means for sealing the terminal 9 of the second bottom surface portion 8 can be inserted. Thereby, the application | coating operation | work of the paint seals P1 and P2 using the nozzle 16 can be performed easily. At this time, the guide plate 14 serves as a mark, and there is an advantage that the position of the boundary portion B can be easily understood and the sealing operation for the boundary portion B can be easily performed.

  (5) Moreover, in this embodiment, the front-end | tip part 14c of the guide plate 14 is carrying out the shape along the 1st vertical wall 5 of the side outer panel 2 substantially parallel. Therefore, the contact state between the front end portion 14c of the guide plate 14 and the first vertical wall 5 of the side outer panel 2 is stabilized, and more reliable positioning can be performed.

  The preferred embodiment of the present invention has been described above, but the present invention is not limited to the above embodiment, and various modifications can be made.

The perspective view which shows the roof to which the roof molding was attached. The figure which looked at the groove part of the roof from the top. The disassembled perspective view which shows the front-end part of a groove part. The expansion perspective view which shows a guide plate. Sectional drawing which follows the SA-SA line shown by the arrow in FIG. Sectional drawing which follows the arrow SB-SB line in FIG. Sectional drawing which follows the SC-SC line shown by the arrow in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Roof panel 2 Side outer panel 3 Groove part 4 Roof molding 5 1st vertical wall 6 of a side outer panel 6 1st bottom face part 7 2nd vertical wall 8 of a roof panel 9 2nd bottom face part 9 Terminal 14 Guide plate 14c Tip part 16 Nozzles 17, 18 Bonding hole 20 Adhesive material 21 Rivet 22 Brazing material A Adhesive area (one end in the front-rear direction)
B boundary C brazing area (general part excluding one end)
P1, P2 Paint seal (sealing means)
S space

Claims (4)

A first bottom surface portion located below the first outer wall is formed along the front-rear direction on the inner end in the vehicle width direction of the side outer panel,
A second bottom surface portion is formed along the front-rear direction on the outer end in the vehicle width direction of the roof panel formed of a different material from the side outer panel, via the second vertical wall,
The first bottom surface portion and the second bottom surface portion are overlapped and joined to form a groove portion along the front-rear direction,
At least one end portion in the front-rear direction of the groove portion, the terminal of the second bottom surface portion is coupled to the top surface of the first bottom surface portion via an adhesive,
In the general portion excluding the one end portion of the groove portion, the first bottom surface portion and the second bottom surface portion are joined by brazing,
A roof structure for an automobile, wherein a guide plate is formed at a boundary portion between the one end portion and the general portion so as to protrude from the second bottom surface portion and a front end portion thereof abuts against a first vertical wall of the side outer panel. .   The automobile roof structure according to claim 1, wherein the boundary portions are provided at both ends in the front-rear direction, and the guide plates are formed from the respective boundary portions.   3. The roof structure of an automobile according to claim 1, wherein the guide plate is formed to rise substantially parallel to the first vertical wall from the second bottom surface portion at a predetermined interval.   The automobile roof structure according to any one of claims 1 to 3, wherein a distal end portion of the guide plate has a bent shape along a first vertical wall of the side outer panel.

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