JPH0445943Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a door panel joining structure, and particularly to a panel joining structure in a door with a sash for an automobile.

[Conventional technology]

Conventionally, in an automobile door as shown in FIG. 5, window glass sashes 2 are provided at both ends of the upper edge of an outer panel 1 serving as the door body, and the upper edge between the sashes 2 is provided with sashes 2 for window glass. is equipped with a belt line molding 3' made of vinyl chloride.

As a joint structure between the outer panel 1 and the sash 2 in such an automobile door, the one shown in FIG. 6 is used, in which the upper edge 1a of the outer panel 1 is directly welded to the outer surface of the sash 2. A belt outer reinforcement 4' is welded to the back surface of the outer panel 1 between the sashes 2 by spot welding or the like.

In this way, the outer panel 1 is bonded to the sash 2 at the welded part (brazed part) 5', and to the belt outer reinforcement 4' at the welded part 6', and the sash 2 and the belt outer reinforcement are bonded to each other. 4' is not directly connected.

A belt line molding 3' is arranged to cover these welded parts 5' and 6'.
This belt line molding 3' is located at the upper edge 1 of the outer panel 1 at the window opening between the two sashes 2.
an inverted U-shaped molding body 3'c disposed in a;
An extension part 3'b that extends and connects to the molding body 3'c and covers the welded part 5' of the sash 2, and a lip part 3 that is slightly warped upward in the molding body 3'c. It is composed of ′a,
These molding body 3'c, extension part 3'b and lip part 3'a are integrally molded.

[Problem that the invention attempts to solve]

However, in such a conventional door panel joint structure, since the outer panel 1 is directly brazed to the sash 2, it is necessary to change the cross section of the belt line molding 3' at the part that covers the sash 2. Line mall 3'
The cross section of the molding body 3'c is an inverted U-shape, whereas the cross section of the extension part 3'b at both ends of the molding body 3'c is an inverted L-shape.
There is a problem that the rigidity at both ends of the belt line molding 3' is reduced, and the symbol A in FIG.
As shown in Figure 3, there were problems in which the belt line molding 3' warped or vibrated.

As shown in Fig. 7, it has been proposed to provide the belt line molding 3' with a Custa molding 7' integrally molded from rubber with a core embedded in the center. However, the above problem has not been resolved.

The present invention is intended to solve the above-mentioned problems, and an object of the present invention is to provide a door panel coupling structure that can prevent a decrease in rigidity at the end portion of a belt line molding.

[Means for solving problems]

For this reason, the joint structure of the door panel of the present invention is
The outer panel includes an outer panel forming a door body, a belt outer reinforcement attached to the back side of the outer panel, and a sash supported by the outer panel, and a belt line molding that covers the upper edge of the outer panel. In order to form a space at a predetermined distance between the back surface of the outer panel and the surface of the sash, and to extend the belt line molding into the same space, the belt outer reinforcement is provided with an inward direction from the attachment point to the outer panel. The present invention is characterized in that a step portion that bends toward the direction and along the surface of the sash, and an extension portion that is connected to the step portion and attached to the sash are integrally attached.

[Effect]

In the door panel coupling structure of the present invention described above, the outer panel and the sash are coupled via the belt outer reinforcement, so a space with a predetermined interval can be formed between the outer panel and the sash, and the belt line The molding can be extended to this space with the same cross-sectional shape to cover the upper edge of the outer panel, the attachment area between the outer panel and the sash, and the attachment area between the belt outer reinforcement and the sash.

〔Example〕

Hereinafter, an embodiment of the present invention will be explained with reference to the drawings. Figures 1 to 4 show a door panel coupling structure as an embodiment of the present invention, and Figure 1 shows the main part (the part shown in Figure 5). Exploded enlarged perspective view of 2nd
The figure is a perspective view of the main part seen from the upper left, Figure 3 is a sectional view taken along the - arrow in Figure 1, and Figure 4 is a sectional view taken in the - arrow direction in Figure 1. , 5th to 7th
The same reference numerals as in the figure indicate substantially the same thing.

In this embodiment, in an automobile door as shown in FIG. 5, a coupling structure between an outer panel 1 and a sash 2 as shown in FIGS. 1 to 4 is used.

That is, the upper edge 1a of the back surface of the outer panel 1
A belt outer reinforcement 4 is disposed along the belt outer reinforcement 4, and the belt outer reinforcement 4 and the outer panel 1 on the side of the sash 2 are spot welded.

The belt outer reinforcement 4 has an extension part with a step part 4b that bends inward from the spot welded part (attachment part) 6 with the outer panel 1 and further bends along the surface of the sash 2. 4a is provided, and the extension part 4
a is brazed to the surface of the sash 2.

Therefore, a space S with a predetermined interval is formed between the front surface of the sash 2, the extension portion 4a of the belt outer reinforcement 4, and the back surface of the outer panel 1.

A cutout 8 is formed in the stepped portion 4b of the extension portion 4a so that the belt line molding 3 can be extended to the space S with a predetermined cross-sectional shape (here, an inverted U-shape).

Therefore, the belt line molding 3 is the third,
As shown in FIG. 4, an inverted U-shaped molding body 3c disposed on the upper edge 1a of the outer panel 1 at the window opening between the two sashes 2;
The extension part 3b has the same cross-sectional shape as the molding body 3c, and is connected to the molding body 3c so as to cover the welded part (brazing part) 5 of the sash 2. The molding main body 3c, extension portion 3b and lip portion 3a are integrally molded.

Comparing the belt line molding 3 of this embodiment with the conventional belt line molding 3', in the width portion of the sash 2, a bent portion 3 that bends downward on the back surface
d is provided in this embodiment.

Since the joint structure of the door panel as an embodiment of the present invention is configured as described above, the cross-sectional shape of the molding body 3c and the extension part 3b is constant between both ends, and the window opening between the two sashes 2 is formed. In this section, a lip section 3a is provided.

The upper edge 1a of the outer panel 1, the upper edge 4c of the belt outer reinforcement 4, and the spot welded portion 6 are covered by the molding body 3c, and the welded portion 5 of the sash 2 is covered with the extended portion 3b.
This improves the appearance.

In this way, since the belt line molding 3 having an inverted U-shaped cross section extends to the edge of the upper edge 1a of the outer panel 1, a decrease in rigidity at the extension part 3b is prevented, and the edge of the belt line molding 3 This also eliminates problems such as peeling off.

Note that an inverted U-shaped cross section may be used as the cross-sectional shape of the molding body 3c and the extension portion 3b.

[Effect of idea]

As detailed above, according to the door panel coupling structure of the present invention, the outer panel forming the door body, the belt outer reinforcement attached to the back side of the outer panel, and the sash supported by the outer panel are connected. In addition, a belt line molding is provided to cover the upper edge of the outer panel, and a space is formed at a predetermined interval between the back surface of the outer panel and the front surface of the sash so that the belt line molding extends into the space. , the belt outer reinforcement has a step portion that bends inward from the attachment portion with the outer panel and bends along the surface of the sash; and a step portion that is connected to the step portion and attached to the sash. With a simple structure in which the belt line molding and the extension part are integrally attached, there is an advantage that the rigidity at the end portion of the belt line molding can be increased, and it is possible to prevent warping and vibration of the belt line molding.

[Brief explanation of the drawing]

Figures 1 to 4 show the joint structure of a door panel as an embodiment of the present invention. Figure 1 is an exploded, enlarged perspective view of the main part (the part shown in Figure 5), and Figure 2 is the main part. FIG. 3 is a cross-sectional view taken in the direction - arrow of FIG. 1, FIG. 4 is a cross-sectional view taken in the direction - arrow of FIG. 5 is a perspective view of the door, FIG. 6 is an exploded enlarged perspective view of the portion shown in FIG. 5, and FIG. 7 is a cross-sectional view showing a modification of the conventional molding. 1... Outer panel, 1a... Upper edge, 2...
Satsushiyu, 3... Beltline Mall, 3a...
Lip portion, 3b...Extension portion, 3c...Mall body, 3d...Bending portion, 4...Belt outer reinforcement, 4a...Extension portion, 4b...Step portion, 4c...Upper edge, 5 ...Welded part (brazed part), 6... Spot welded part, 8... Cut-through,
S... Space.

Claims (1)

[Scope of utility model registration request] The outer panel includes an outer panel forming a door body, a belt outer reinforcement attached to the back side of the outer panel, and a sash supported by the outer panel, and a belt line molding that covers the upper edge of the outer panel. In order to form a space at a predetermined distance between the back surface of the outer panel and the surface of the sash, and to allow the belt line molding to extend into the same space, the belt outer reinforcement is provided with a space inward from the attachment point with the outer panel. a step portion that bends toward the direction and along the surface of the sash;
A joint structure for a door panel, characterized in that an extension part connected to the same stage part and attached to the sash is integrally attached.