JP3740845B2 - Roof end structure around vehicle door opening - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a roof end structure around a vehicle door opening.
[0002]
[Prior art]
FIGS. 3 and 4 show a roof rear structure in a back door type vehicle as an example of a roof end structure around a conventional door opening. 31 is a roof panel, 34 is a vehicle inside the rear end of the roof panel 31. A rear roof rail as a roof skeleton member disposed in the width direction is formed with a rail inner 35 and a rail outer 36 in a closed cross section, and a drip channel 37 having a substantially L-shaped cross section is joined and arranged on the rail outer 36. The lower edge flange 33 of the vertical wall 32 at the rear end of the roof panel 31 is joined and fixed to the rear panel.
[0003]
A drip weather strip 38 is attached to the joint between the drip channel 37 and the lower edge flange 33, the back door 39 is closed, and the drip weather strip 38 is in close contact with the back door 39. A drip portion 40 is formed between the weather strip 38 and the vertical wall 32 so that rainwater and car wash water flowing backward from the roof panel 31 are received by the drip portion 40 and drained in the vehicle width direction. I have to.
[0004]
The back door 39 is provided with a door weather strip 41 which is in close contact with the rail outer 36 and seals the outside of the vehicle interior when the back door is closed, on the inner peripheral side of the portion where the drip weather strip 38 is in close contact. .
[0005]
Further, a weld 42 is mounted on the joint flange at the lower edge of the rail inner 35 and the rail outer 36 to serve as a decoration and a protector.
[0006]
[Problems to be solved by the invention]
When the back door 39 is opened, the drip weather strip 38 is exposed, and dirt deposited and deposited on the drip weather strip 38 is noticeably deteriorated.
[0007]
Further, since the back door 39 is in close contact with the drip weather strip 38 to form the drip portion 40, it is necessary to provide the door weather strip 41 on the inner peripheral side as described above to take a perfect sealing measure. Therefore, not only is the number of sealing parts increased, which is disadvantageous in terms of cost, but also the closed cross section of the back door 39 is enlarged due to the need to secure double inner and outer sealing surfaces, and the appearance is impaired.
[0008]
In addition, since the lower edge flange 33 of the rear end of the roof panel 31 and the drip channel 37 are joined by spot welding at the portion constituting the drip portion 40, the joining portion that becomes the bottom of the drip portion 40 is likely to rust. turn into.
[0009]
Further, the rear edge portion of the roof panel 31 whose overall shape is formed in a substantially hat shape is bulged acutely backward to form an inverse portion 43 in order to have a continuity with the upper edge of the back door 39. Therefore, when the roof panel 31 is press-molded, the inverse portion 43 must be molded with a slide mold, and the moldability is deteriorated.
[0010]
Accordingly, the present invention provides a roof end portion structure around the door opening that can further enhance the quality without the drip portion being visible when the back door is opened.
[0011]
[Means for Solving the Problems]
In the invention of claim 1, the end portion after the roof panel, a first vertical wall connected to a roof general surface, is formed in the roof extension member of the roof panel and another body, the lower edge of the first vertical wall I stepped and the shelf wall extending substantially horizontally towards later joined superimposed on the connection flange and extending rearward, stepped cross section and a second vertical wall extending downward from the rear edge of Tanakabe from A drip portion extending along the first vertical wall is recessed at the connecting corner between the first vertical wall and the connection flange in front of the overlapping portion of the connection flange and the shelf wall. It is characterized by.
[0012]
The invention according to claim 2 is characterized in that the first vertical wall according to claim 1 is bent at a substantially right angle from the general surface of the roof.
[0013]
In the third aspect of the present invention, while bent forming the flange edge towards towards the rear in the lower edge of the second vertical wall according to claim 1, 2, close to the lower side of the roof panel the rear end portion thereby forming an extending portion extending rearward toward the lower edge of the rear roof rail disposed Te, a flange edge provided on the edge after said extension portion, a rear roof rail and stepped cross section by joining these flanges edge comrades A closed cross section extending along the rear roof rail is formed between the first and second sections.
[0014]
The invention according to claim 4 is characterized in that a welt having a seal lip that is in close contact with the back door is attached to the flange joint portion where the flange edges are joined together according to claim 3.
[0015]
The invention of claim 5 is characterized in that a dam portion is erected on the shelf wall according to claims 1 to 4.
[0016]
In the invention of claim 6, the exterior part is mounted on the shelf wall according to claims 1 to 5, while the upper front edge of the exterior part is connected to the continuous portion of the first vertical wall with the roof general surface. Is provided, and a water channel gap is formed between the step and the upper front edge of the exterior part.
[0017]
In the invention of claim 7, an exterior part is mounted on the shelf wall according to claims 1 to 6, and the bottom surface of the exterior part is separated from the shelf wall except for the attachment part to the shelf wall. In addition, a drainage gap is formed between the shelf wall and the bottom surface of the exterior part.
[0018]
In the invention of claim 8, the dam portion on the shelf wall according to claim 7 is characterized in that it rises higher in front of the gap for drainage than the gap.
[0020]
In the invention of claim 9, outwardly of the shelf wall of the drip portion sandwiched between the dam portion according to claim 5-8, it is characterized in that the attachment of the part cross is set .
[0021]
【The invention's effect】
According to the invention described in claim 1, since the drip of the roof after the end are recessed into the communication設隅portion of the connection flange in which the first vertical wall and Tanakabe the stepped cross section is joined Even when the back door is opened, the drip portion does not appear to be hidden behind the shelf wall, so that dirt deposited and deposited on the drip portion does not stand out and the appearance is not deteriorated, and the quality can be further enhanced.
[0022]
The end portion after the roof panel the panel stiffness is high because you have stepped shaped as stepped cross section, it is possible to increase the torsional rigidity of the roof periphery.
[0023]
Furthermore, since the drip portion is recessed in the panel surface of the step-shaped cross-section and the conventional drip weather strip is not used, the number of parts can be reduced and the cost can be reduced.
Moreover, since the portion extending from the shelf wall of the step-shaped cross section to the second vertical wall is composed of a separately formed roof extension member, the step-shaped cross section can be formed with as few restrictions as possible. It is possible to further improve the property and to increase the degree of freedom of modeling.
[0024]
According to the second aspect of the present invention, in addition to the effect of the first aspect, the first vertical wall is bent at a substantially right angle from the general roof surface. And the first vertical wall can be formed without using a slide mold, and the formability can be improved and the cost can be reduced.
[0025]
According to the third aspect of the present invention, in addition to the effects of the first and second aspects of the present invention, a closed space extending along the rear roof rail between the step-shaped cross-section of the rear end portion of the roof panel and the rear roof rail is provided. Since it is comprised as a cross-sectional part, the torsional rigidity of a roof periphery part can be improved further.
[0026]
According to the invention of claim 4, in addition to the effect of the invention of claim 3, a flange in which the flange edge of the second vertical wall of the step-shaped cross section and the flange edge of the extension part of the rear roof rail are joined. The welt attached to the joint functions as a door weather strip that seals between the back door and the door weather strip can be dispensed with. Therefore, the number of parts can be further reduced and the cost can be greatly reduced. be able to.
[0027]
According to the fifth aspect of the present invention, in addition to the effects of the first to fourth aspects of the present invention, even if the drip portion is not deep drawn by the dam portion standing on the shelf wall, the substantial depth of the drip portion is obtained. Since the drainage can be improved by deepening the depth, the formability of the roof panel can be improved.
[0028]
According to the invention of claim 6, in addition to the effects of the inventions of claims 1 to 5, the exterior parts are mounted on the shelf wall by effectively using the shelf wall of the step-like cross section, The layout of the exterior parts can be easily arranged and the closed cross section of the upper end portion of the door can be reduced, so that the appearance can be improved.
[0029]
Further, since the water flowing toward the rear from the roof general surface can drained reliably trapped at the water for a gap provided between the upper front edge of the vertical wall and exterior parts of the stepped portion of the first vertical wall, exterior There is no such thing as wrapping down from the top surface of the part onto the door surface, and the quality is not impaired.
[0030]
According to the seventh aspect of the present invention, in addition to the effects of the first to sixth aspects of the invention, a drainage gap is provided between the bottom surface of the exterior component and the shelf wall. Even if water splashes from the drip part to the exterior part mounting part on the shelf wall, the gap does not drain well and water does not stay in the exterior part mounting part. Can be further improved.
[0031]
According to the invention described in claim 8, in addition to the effects of the inventions of claims 1-7, the dam part can suppress the wrapping of water from the drip part to the exterior part mounting part side, thereby further enhancing the quality feeling. be able to.
[0033]
According to the ninth aspect of the present invention, in addition to the effects of the fifth to ninth aspects, the connection part between panels and an attachment part such as an exterior part can be set in the part separated from the drip part by the dam part. Therefore, it is advantageous in terms of rust prevention.
[0034]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.
[0035]
In FIGS. 1 and 2, reference numeral 1 denotes a roof panel whose overall shape is formed in a substantially hat shape, and a first vertical wall 3 which is bent downward at a substantially right angle from the roof general surface 1a and is connected to the rear end portion thereof. A step-like cross section comprising a shelf wall 4 extending substantially horizontally rearward from the lower edge of the vertical wall 3 as viewed from the roof general surface 1a, and a second vertical wall 5 extending downward from the rear edge of the shelf wall 4. The portion 2 is formed in a stepped manner, and the drip portion 6 is recessed in the vehicle width direction along the first vertical wall 3 at an appropriate depth at the connecting corner between the first vertical wall 3 and the shelf wall 4. It is.
[0036]
In the present embodiment, a portion extending from the shelf wall 4 to the second vertical wall 5 of the step-shaped cross section 2 is configured by a roof extension member 7 formed separately from the roof panel 1.
[0037]
The rear edge of the drip portion 6 has substantially the same longitudinal width as that of the shelf wall 4 and extends substantially horizontally as a connection flange 6a. The shelf wall 4 of the roof extension member 7 is overlapped on the connection flange 6a. Joined by spot welding.
[0038]
On the lower edge of the second vertical wall 5, a flange edge 5 a is bent toward the rear, while the rail inner 9 and the rail outer 10 are formed in a closed cross section so that the inner side below the rear end of the roof panel 1. An extension portion 11 extending substantially horizontally rearward is formed on the lower edge of the rear roof rail 8 disposed in the vehicle width direction, specifically, on the lower edge of the rail inner 9. The flange edge 11a is bent, and the flange edge 11a is superposed on the flange edge 5a of the second vertical wall 5 and joined by spot welding, so that the step-shaped cross section 2 and the rear roof rail 8 are joined. A relatively large closed cross section 12 extending in the vehicle width direction is formed.
[0039]
A welt 14 having a hollow seal lip 15 is attached to the flange joint 13 where the flange edge 5a and the flange edge 11a are joined, and the seal lip 15 is attached to the back door 16 when the back door 16 is closed. The vehicle interior and exterior can be sealed by close contact.
[0040]
Further, the shelf wall 4 of the step-shaped cross section 2 is effectively used as a mounting surface of an exterior part, for example, a rear spoiler 17, and the rear spoiler 17 is mounted on the shelf wall 4.
[0041]
The rear spoiler 17 is mounted on the shelf wall 4 via a spacer or mounting seat 17a by fastening means (not shown), and a gap 18 for draining water is provided between the bottom surface of the rear spoiler 17 and the shelf wall 4 at a portion other than the mounting portion. Is formed.
[0042]
A dam portion 19 that rises higher than the gap 18 in front of the drainage gap 18 is bent at the front edge of the shelf wall 4 in a flange shape.
[0043]
On the other hand, an upper portion of the first vertical wall 3 connected to the roof general surface 1a is provided with a step portion 20 for receiving an upper front edge portion 17b bent below the rear spoiler 17. A water channel gap 21 is formed between the vertical wall 20 a and the upper front edge of the rear spoiler 17. Note that BD is an adhesive that joins the front edge flange of the roof rail 8 and the roof panel 1.
[0044]
According to the structure of the above embodiment, the water flowing backward on the roof general surface 1 a is formed between the vertical wall 20 a of the step portion 20 of the first vertical wall 3 and the upper front edge portion 17 b of the rear spoiler 17. Since it flows into the gap 21 for the water channel and flows down along the first vertical wall 3, it is captured by the drip portion 6 below and drained in the vehicle width direction, so that the back door 16 surface from the upper surface of the rear spoiler 17. There is no such thing as going around and flowing down and losing quality. In particular, since the upper front edge portion 17b of the rear spoiler 17 is bent downward, it is possible to prevent water droplets from being formed on the inner surface 17c of the rear spoiler 17, and to prevent the rear spoiler 17 from entering around the back door 16 surface.
[0045]
Here, the drip portion 6 is recessed at the connecting corner of the first vertical wall 3 and the connecting flange 6a to which the shelf wall 4 is joined, and is originally hidden behind the front side of the shelf wall 4 from behind. Since the rear spoiler 17 is mounted on the shelf wall 4 as in the present embodiment, the dirt deposited and accumulated in the drip portion 6 is prevented from being noticeably impaired. Can do.
[0046]
Further, by mounting the rear spoiler 17 on the shelf wall 4, the closed section of the upper end portion of the back door 16 can be reduced, that is, the vertical width of the closed section can be reduced, so that the appearance can be improved.
[0047]
In particular, in the present embodiment, the drip portion 6 is recessed in the plane of the step-shaped cross-sectional portion 2 so that the conventional drip weather strip is unnecessary, and the extended portion of the second vertical wall 5 and the rear roof rail 8 is provided. 11 so that the seal lip 15 of the welt 14 attached to the flange joint 13 joined to the back door 16 is in close contact with the back door 16 and seals the inside and outside of the vehicle, so that the top door has a single sealing surface. Since the upper and lower width dimensions of the upper end portion of the back door 16 can be made as small as possible, the appearance can be improved, and the door weatherstrip can be eliminated, so the number of parts can be reduced. Can greatly contribute to cost reduction.
[0048]
Further, the bottom surface of the rear spoiler 17 is separated from the shelf wall 4 except for the portion attached to the shelf wall 4, and a drainage gap 18 is formed between the bottom surface of the rear spoiler 17 and the shelf wall 4. Therefore, even if water splashes from the drip portion 6 onto the shelf wall 4, the drainage is good, and the quality can be improved without water remaining in the mounting portion of the rear spoiler 17. .
[0049]
In particular, since a dam portion 19 that stands higher than the gap 18 is provided on the shelf wall 4 in front of the drainage gap 18, the depth of the drip portion 6 can be increased from the bottom surface of the drip portion 6. It can be obtained up to the upper end position of the dam portion 19, and the substantial depth can be increased to improve drainage, and the dam portion 19 allows the drip portion 6 to move to the mounting portion side of the rear spoiler 17 on the shelf wall 4. In addition to being able to suppress the wraparound of water, the quality can be further enhanced, and the substantial depth can be deepened without deep drawing the drip portion 6 in this way, so that the stepped cross section 2 can be easily formed. It can be carried out.
[0050]
On the other hand, regarding the formability of the step-shaped cross-section 2, the first vertical wall 3 is formed at a substantially right angle downward from the roof general surface 1 a, and the inverse portion (see FIG. 4) in the conventional structure is eliminated. During press molding of the roof panel 1, the continuous corners of the roof general surface 1a and the first vertical wall 3 can be molded without using a slide mold, and the moldability can be improved.
[0051]
In particular, in the present embodiment, a portion extending from the shelf wall 4 to the second vertical wall 5 of the step portion 2 is constituted by a roof extension member 7 formed separately, and this shelf wall 4 is connected to the connecting flange at the rear edge of the drip portion 6. Since it is superposed on 6a and joined by spot welding, restrictions on molding of stepped cross section 2 can be reduced as much as possible to further improve moldability, and the degree of freedom of modeling is expanded. can do.
[0052]
Moreover, since the dam part 19 is also formed by bending, it can be set comparatively easily.
[0053]
Since the joint portion and the attachment portion of the rear spoiler 17 are separated from the drip portion 6 by the dam portion 19 by spot welding with the connection flange 6a, it is advantageous in terms of rust prevention. Although not shown, a paint seal is applied between the bent base portion of the dam portion 19 and the connection flange 6a.
[0054]
Furthermore, since the rear end portion of the roof panel 1 is stepped and formed as the step-shaped cross-section portion 2 separately from such forming effects, the panel rigidity of the rear end portion of the roof panel 1 can be increased. In addition, an extension portion 11 is provided at the lower edge of the rear roof rail 8 of the roof skeleton member, and the extension portion 11 is joined to the lower edge portion of the second vertical wall 5 of the step-shaped cross-section portion 2. Since the relatively large closed cross section 12 extending in the vehicle width direction is formed between the step-shaped cross section 2 and the rear roof rail 8, the torsional rigidity of the rear portion of the roof can be further enhanced.
[0055]
In the above-described embodiment, the structure in which the rear spoiler 17 is mounted on the shelf wall 4 of the step-shaped cross section 2 is shown. However, the rear spoiler 17 is not provided, and the upper end of the back door 16 extends above the shelf wall 4 of the step-shaped cross section 2. Even if the vehicle has a specification that covers it, the drip portion 6 is in a position hidden behind the shelf wall 4 as described above, and therefore, dirt that adheres and accumulates in the drip portion 6 when the back door 16 is opened. The quality of the product can be further enhanced without losing its appearance.
[0056]
Moreover, although the dam part 19 was formed in the roof extension member 7, it may be made to protrude in the shape of a bead on the upper surface of the connection flange 6a of the roof panel 1, for example.
[0057]
Furthermore, the present invention can be similarly applied not only around the opening of the back door but also around the opening of the side door. At this time, the exterior component may be a roof side finisher.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing an embodiment of the present invention.
FIG. 2 is a perspective view showing a rear structure of a roof panel according to an embodiment of the present invention.
FIG. 3 is a rear view of a back door type vehicle which is an object of the present invention.
4 is a cross-sectional view corresponding to the line AA in FIG. 3 showing a conventional structure.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Roof panel 1a Roof general surface 2 Step-shaped cross-section part 3 1st vertical wall 4 Shelf wall 5 2nd vertical wall 5a, 11a Flange edge 6 Drip part 7 Roof extension member 8 Rear roof rail 11 Extension part 12 Closed sectional view 13 Flange Joint 14 Welt 15 Seal lip 16 Back door 17 Rear exterior part 18 Drainage gap 19 Dam part 20 Step part 20a Vertical wall 21 Waterway gap

Claims (9)

The end portion after the roof panel, a first vertical wall connected to a roof general surface, is formed in the roof extension member of the roof panel and separately, on the connection flange and extending rearward from a lower edge of the first vertical wall a substantially horizontally extending ledge wall rearward are joined overlapping, edges and stepped molded stepped cross section and a second vertical wall extending downward from the rear of Tanakabe, between the connecting flange and Tanakabe A roof around a door opening of a vehicle, wherein a drip portion extending along the first vertical wall is recessed in a continuous corner between the first vertical wall and the connecting flange in front of the overlapping portion. End structure.   2. A roof end structure around a door opening of a vehicle according to claim 1, wherein the first vertical wall is bent at a substantially right angle from the general roof surface. While bent forming the flange edge towards towards the rear in the lower edge of the second vertical wall, an extending portion extending rearward toward the lower edge of the rear roof rail disposed proximate the lower side of the roof panel the rear end portion forming together to form a flange edge provided on the edge after said extension portion, a closed cross-section portion extending along the rear roof rail between the joining flanges rim each other in the rear roof rail and stepped cross section The roof end structure around the door opening of the vehicle according to claim 1 or 2, wherein 4. A roof end structure around a door opening of a vehicle according to claim 3, wherein a welt having a seal lip that is in close contact with the back door is attached to the flange joint portion where the flange edges are joined together.   The roof end structure around the door opening of the vehicle according to any one of claims 1 to 4, wherein a dam portion is erected on the shelf wall.   While mounting the exterior part on the shelf wall, a step part for receiving the upper front edge part of the exterior part is provided at a portion connected to the roof general surface of the first vertical wall, and the step part and the upper front edge of the exterior part are provided. A roof end structure around a door opening of a vehicle according to any one of claims 1 to 5, wherein a waterway gap is formed between the vehicle and the vehicle.   Mount exterior parts on the shelf wall, and separate the bottom part of the exterior part from the shelf wall except for the attachment part to the shelf wall to form a drainage gap between the shelf wall and the exterior part bottom face The roof end structure around the door opening of the vehicle according to any one of claims 1 to 6, wherein   8. A roof end structure around a door opening of a vehicle according to claim 7, wherein the dam portion on the shelf wall rises higher in front of the drainage gap than the gap. Sandwiched between the dam portion to the shelf wall of the way after the drip unit, inter-component vehicle door opening around according to any one of claims 5-8, characterized in that the attachment part is configured Roof end structure.

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