JP4147823B2 - Auto body panel structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vehicle body panel structure including an outer panel and an inner panel, such as an automobile door, a fender, a hood, and a trunk lid.
[0002]
[Prior art]
For example, as disclosed in Japanese Utility Model Laid-Open No. 59-26013, an automobile door is formed by arranging an outer panel and an inner panel at a predetermined interval, and folding the outer panel around the inner panel. The winding is coupled by so-called hemming.
[0003]
By the hemming of the outer panel, a notch portion having a required width is provided in the corner portion on the folded side of the outer panel so that the folded portion of the outer panel is not wrinkled at the corner portion on the lower side of the door.
[0004]
In addition, since the rust preventive agent by electrodeposition coating is not reachable in the winding joint part, the sealing material is filled between the overlapping surfaces of the outer panel and the inner panel at the winding joint part. A sealing material is preliminarily applied to one or both of the superposed surfaces and is wound and joined by a hemming process, so that a sealing material is filled between the superposed surfaces to take rust prevention measures.
[0005]
[Problems to be solved by the invention]
As described above, a notch for preventing wrinkles is formed in the corner on the lower side of the door, and a slight gap is formed between the notch and the corner end of the inner panel. This causes a problem that the sealing material filled between the overlapping surfaces of the outer panel and the inner panel protrudes from the gap during hemming.
[0006]
Further, in order to prevent the sealing material from sticking out, if the filling amount of the sealing material is reduced, the rust prevention effect is naturally reduced.
[0007]
Therefore, the present invention provides a vehicle body panel structure for an automobile that can prevent the sealing material filled in the overlapped portion of the outer panel and the inner panel from protruding to the outside without reducing the filling amount of the sealing material. .
[0008]
[Means for Solving the Problems]
In the present invention, an outer panel and an inner panel are arranged at a predetermined interval, and the edge portions of both the panels are overlapped and joined together, and the overlapped portion is filled with a sealing material. In the structure, the vehicle body panel composed of the outer panel and the inner panel is vertically arranged or inclined, and the overlapping portion of the edge portions of both the outer and inner panels is connected to the edge of the outer panel. It is a tightening connection that includes the edge part and is folded back, and is the lower corner part formed by the lower side part and the side part of the vehicle body panel. The corner part of the inner panel is on the side from the lower side part. A notch portion is formed over the side portion, and a trap portion is formed around the notch portion at the tightening coupling portion so as to avoid the protrusion of the sealing material .
[0009]
【The invention's effect】
According to the present invention, when the overlapped portion of the outer edge portion of the outer panel and the inner panel is pressed for bonding, the sealing material filled in the overlapped portion tends to protrude outside the overlapped portion. Since a part of the sealing material that overflows in the space stays in the trap portion, it is possible to avoid the protrusion of the sealing material to the outside.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[0011]
1 to 3 show a first embodiment in which the present invention is applied to a side door arranged vertically in a side opening of an automobile. FIG. 1 is a partial perspective view of the door as seen from the back side. Is a cross-sectional view taken along line AA in FIG. 1, and FIG. 3 is a cross-sectional view taken along line BB in FIG.
[0012]
In FIG. 1, a door body 1 as a vehicle body panel is composed of an outer panel 2 and an inner panel 3.
[0013]
The outer panel 2 and the inner panel 3 are arranged at a required interval, and the front and rear end edges and the lower edge thereof are wound and joined.
[0014]
Specifically, flange portions 3A that are stepped and formed toward the outer panel 2 are formed at the front, rear edge, and lower edge of the inner panel 3, and the front and rear of the outer panel 2 are formed. The end edge portion and the lower end edge portion are wound and joined by a hemming process including the flange portion 3A and turning back.
[0015]
In order to prevent wrinkles from occurring in the corner portion of the folded edge portion 2A of the outer panel 2 at the corner portion formed by the lower side portion and the side portion of the door body 1, the lower side portion of the folded edge portion 2A. A notch 2B having a required width is formed at the boundary between the vertical side and the vertical side.
[0016]
A sealing material 4 is applied in advance to the inner side surface of the flange portion 3A of the inner panel 3 (the surface overlapping with the general portion in the vicinity of the folded edge portion 2A of the outer panel 2). As shown in FIG. 2, the sealing material 4 is densely filled in the overlapping portion between the inner surface of the outer panel 2 and the inner surface of the outer panel 2, and rust prevention measures are taken for the overlapping portion.
[0017]
And the trap part 5 which avoids the protrusion of the sealing material 4 is formed in the required site | part of the part with which the said sealing material 4 was filled.
[0018]
In the present embodiment, at the lower corner portion formed by the lower horizontal side portion and the side side portion of the door body 1, a notch portion 3 </ b> B extending from the lower horizontal side portion to the side side portion is formed at the corner portion of the inner panel 3. The trap part 5 is formed around the notch part 3B in the winding joint part.
[0019]
That is, a trap portion (sealing material reservoir) 5 of a required gap surrounded by the folded edge portion 2A of the outer panel 2 and the general portion and the notch portion 3B end of the flange portion 3A of the inner panel 3 is formed in the winding joint portion. Is done.
[0020]
Further, in the present embodiment, as shown in FIG. 3, the inner panel is provided at a lower corner portion of the door body 1 from a portion spaced from the outer panel 2 in the vicinity of the flange portion 3B of the inner panel 3 being bent. 3, a recess 6 is provided across a portion of the notch 3 </ b> B that is distant from the end of the folded edge 2 </ b> A that is a winding terminal of the outer panel 2. Is formed.
[0021]
According to the above embodiment, when the flange portion 3A of the inner panel 3 and the end edge portion of the outer panel 2 are wound and joined by hemming, the flange portion 3A and the general portion of the outer panel 2 are superposed by the applied pressure. The sealing material 4 filled between the surfaces overflows, and a part thereof flows to the lower corner of the door body 1 provided with the notch 2B. As described above, since there is a trap portion 5 having a required gap surrounded by the folded edge portion 2A of the outer panel 2 and the general portion and the notch portion 3B end of the flange portion 3A of the inner panel 3, as described above, the sealing material It is possible to reliably avoid the overflow portion of 4 being captured by the trap portion 5 and protruding from the cutout portion 2B of the folded edge portion 2A.
[0022]
As described above, in the case of a vehicle body panel that is vertically arranged in the side opening of the vehicle body like the door main body 1 of the present embodiment, the folding edge portion 2A of the outer panel 2 is connected to the winding joint portion of the lower corner portion. A notch 2B for preventing wrinkles is provided, and there is a concern that the sealing material 4 may protrude from the notch 2B during hemming, but this protrusion of the sealing material 4 can be avoided by the trap 5 and the appearance quality can be avoided. Of course, since it is not necessary to reduce the filling amount of the sealing material in consideration of the protrusion of the sealing material 4 to the outside, it is possible to maintain a high rust preventive effect at the winding joint portion.
[0023]
Further, in the present embodiment, a recess 6 is provided at the lower corner of the door body 1 with the notch 3B of the inner panel 3 away from the end of the folded edge 2A of the outer panel 2 as a molding end. A water drain hole 7 that communicates between the inside and the outside is constructed so that car wash water, rain water, and the like that have entered the door body 1 are drained from the water drain hole 7. Unlike the case where the drainage hole is formed in the portion, there is no problem of the sealing material protruding from the drainage hole.
[0024]
FIG. 4 shows a different example in which the present invention is applied to the door body 1. In this second embodiment, the outer panel 2 and the inner panel 3 constituting the door body 1 are joined together by winding the periphery of the outer panel 2 and the inner panel 3. The point that the sealing material 4 is filled in the overlapping portion of the flange portion 3A of the inner panel 3 and the general portion of the outer panel 2 is the same as in the first embodiment.
[0025]
A drain hole 7A is formed in a middle portion of the lower side portion of the inner panel 3 from a portion spaced from the outer panel 2 of the inner panel 3 to the above-described tightening joint portion in the same manner as a general door body. The water that has entered the door body 1 is drained from the drain hole 7A.
[0026]
Here, the drain hole 7A is formed by being widened in the transverse direction at the tightening joint portion, and this widened portion is used as the trap portion 5A.
[0027]
According to the structure of the second embodiment, when the peripheral portions of the outer panel 2 and the inner panel 3 are wound and joined together by hemming, the sealing material 4 is outside the upper edge of the folded edge 2A in the drain hole 7A. However, since the lower part of the drain hole 7A is laterally widened to form the trap part 5A in the tightening joint part, the overflowing sealing material 4 is captured by the trap part 5A. Thus, it is possible to reliably avoid the protrusion to the outside.
[0028]
In the first and second embodiments, the door body of the side door is shown as the vehicle body panel 1 in which the peripheral portions are wound and joined. However, in addition to the above, the invention is applied to a back door, a hood, or a trunk lid that is inclined. Similar effects can be obtained.
[0029]
In addition, the structure of the second embodiment can be combined with the structure of the first embodiment to achieve both improvement in drainage and improvement in the effect of preventing the sealing material from protruding.
[0030]
5 and 6 show a third embodiment in which the present invention is applied around a wheel arch portion of a front fender or a rear fender.
[0031]
In the fender 11 as a vehicle body panel, an outer panel (fender panel) 12 and an inner panel (wheel house outer) 13 are vertically arranged at a required interval, and the ends of both the panels 12 and 13 are arranged at a wheel arch portion. The flange portions 12A and 13A are bent at the edges toward the inner side of the vehicle body, and the flange portions 12A and 13A are overlapped and joined.
[0032]
In order to prevent water from entering between the outer panel 12 and the inner panel 13 by splashing or the like from the overlapping portions of the end portions of the flange portions 12A and 13A, the sealing material 14 is interposed between the bent base portions of the flange portions 12A and 13A. Is filled.
[0033]
Further, an attachment hole 16 is provided in the overlapping portion of the flange portions 12A and 13A, and parts such as a mud guard are attached through the attachment hole 16.
[0034]
Since the mounting hole 16 is close to the bent bent base portion filled with the sealing material 14, the filled sealing material 14 may protrude into the mounting hole 16 through a slight clearance of the overlapping portions of the flange portions 12 </ b> A and 13 </ b> A. .
[0035]
Therefore, in this embodiment, the portion of the inner panel 13 in which the mounting hole 16 of the flange portion 13A is formed is cut out from the end to the sealing material filling portion (a portion slightly above the bent flange base). A portion 17 is formed, and the cutout portion 17 constitutes a trap portion (sealing material reservoir) 15 that prevents the sealing material 14 from protruding around the bent bent base portion.
[0036]
Therefore, according to the structure of the third embodiment, the sealing material 14 filled between the flange bent base portions of the outer and inner panels 12 and 13 of the fender 11 is changed from the state shown in FIG. As shown in FIG. 4, the fluid flows toward the mounting hole 16 side, but in the portion where the mounting hole 16 is formed, the sealing material 14 that has flowed in the trap portion 14 around the flange bent base portion of the inner panel 13 is retained by surface tension. Thus, it is possible to avoid outflowing (overhanging) into the mounting hole 16.
[0037]
As a result, it is possible to avoid hindering the mounting of components such as the mudguard due to the sealing material 14 protruding into the mounting hole 16.
[0038]
FIG. 7 shows a fourth embodiment as a modification of the third embodiment. In this embodiment, the edge 17a of the notch 17 is filled with the sealing material 14 around the flange bent base of the inner panel 13. It is curled from the part toward the inside of the car .
[0039]
In this manner, the end edge 17a of the notch 17 is curled from the sealing material filling portion toward the inside of the vehicle body, so that the sealing material 14 flows from the state shown in FIG. 7A toward the flange portion 12A. At this time, as shown in FIG. 7B, a part of the sealing material 14 spreads along the curved surface of the curled-shaped end edge portion 17a of the notch portion 17, and is more easily retained by the trap portion 15 due to surface tension. Become.
[Brief description of the drawings]
FIG. 1 is a partial perspective view of a door body showing a first embodiment of the present invention.
2 is a cross-sectional view taken along line AA in FIG.
3 is a cross-sectional view taken along line BB in FIG.
FIG. 4 is a perspective view similar to FIG. 1, showing a second embodiment of the present invention.
FIG. 5 is a partial perspective view of a fender showing a third embodiment of the present invention.
6 is a cross-sectional view showing a main part of FIG. 5;
FIG. 7 is a cross-sectional view similar to FIG. 6, showing a fourth embodiment of the present invention.
[Explanation of symbols]
1 Door body (body panel)
2,12 Outer panel 2A Folding edge (winding end)
3, 13 Inner panel 3B, 17 Notch 4, 14 Sealing material 5, 5A, 15 Trap part 6 Recess 7, 7A Drain hole 11 Fender (vehicle body panel)
12A, 13A flange part 17a edge part

Claims (4)

In the vehicle body panel structure of an automobile in which the outer panel and the inner panel are arranged at a required interval and the edge portions of both the panels are overlapped and bonded together, and the overlapping portion is filled with a sealing material.
Wherein with body panels composed of an inner panel are vertically disposed or inclined arrangement the outer panel, these outer, end edges of the inner panel end edges of the overlapping portion of the edges of the inner two panels outer panel It is a tightened joint that is wrapped inside and is a lower corner formed by the lower side and side of this body panel, from the lower side to the side of the inner panel. A vehicle body panel structure for an automobile, characterized in that a notch portion is formed, and a trap portion is formed around the notch portion at the tightening joint portion to prevent the sealing material from protruding . A recess is provided in a lower corner portion of the vehicle body panel from a portion where the inner panel is separated from the outer panel to a portion of the cutout portion of the inner panel which is away from the outer panel fastening terminal, and the recess and the outer panel The vehicle body panel structure for an automobile according to claim 1 , wherein a drainage hole is formed between the two. In the vehicle body panel structure of an automobile in which the outer panel and the inner panel are arranged at a required interval and the edge portions of both the panels are overlapped and bonded together, and the overlapping portion is filled with a sealing material.
Wherein with body panels composed of an inner panel are vertically disposed or inclined arrangement the outer panel, these outer, end edges of the inner panel end edges of the overlapping portion of the edges of the inner two panels outer panel A watertight hole that is enclosed and folded, and a drain hole is formed in a lower lateral side portion of the vehicle body panel from a portion spaced from the outer panel of the inner panel to the coiled joint portion; A vehicle body panel structure for an automobile characterized in that the punched hole is formed by being widened in the transverse direction at the tightening joint portion, and the widened portion is used as a trap portion that prevents the sealing material from protruding . The outer panel and the inner panel are vertically arranged at a required interval, and the edge portions of these panels are formed as flange portions bent toward the inner side of the vehicle body, and the flange portions are overlapped and joined. In addition, in the body panel structure of an automobile in which a sealing material is filled between the bent base portions of these flange portions,
A flange part of the inner panel is provided with a notch part that partially spans the sealing material filling part, and a trap part that avoids the protrusion of the sealing material around the flange bent base part is formed,
Body panel structure for an automobile, characterized in that the curling molded toward the inside of the vehicle body the edge portion of the notch in the flange bent base portion around the sealing material filling unit.

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