JPH0425425Y2 - - Google Patents

Description

[Detailed description of the invention] <<Industrial application>> This invention relates to the roof molding attachment structure of automobiles, and in particular, it is an improvement of the so-called Mohican roof, which is a type in which roof side panels are joined to both side edges of the main roof panel. Regarding.

<<Prior Art>> A typical mohican type roof is that disclosed in Japanese Utility Model Application Publication No. 17880/1983. This conventional example is shown in FIG.

In Figure 3, 1 is the main roof panel located in the center of the roof of the car, and on both side edges of this is a drainage channel to prevent water droplets traveling along the roof from dripping onto the side door glass or into the interior. A drip channel portion 2 is formed by bending. Roof side panels 3 are located on both sides of the main roof panel 1 and constitute the automobile roof, and are made by welding an outer panel 3a and an inner panel 3b together to form a box-shaped cross section.

The inner upper flange part 3c of the roof side panel 3 is applied to the bottom of the drip channel part 2 of the main roof panel 1 and welded to this part, thereby joining the main roof panel 1 and the roof side panel 3. .

4 is the main roof panel 1 and roof side panel 3
It is a molding that covers the joint between the drip channel part 2 and is fitted along the rising piece 2a at the side end of the drip channel part 2. The left side portion of the molding 4 enters into the drip channel portion 2, and the right side portion contacts the surfaces of the roof side panels 3, 3a. In addition, 5
and 6 are sealants for preventing water from entering the mating surfaces of panels 1 and 3.

<<Problem to be solved by the invention>> The shape of the outer panel 3a of the roof side panel 3 is such that it swells upward from the drip channel part 2, and has a roof surface that is almost continuous with the main roof panel 1. It is beginning to form. Therefore, at the joint between the panels 1 and 3, the inclined portion between the rising piece 2a of the panel 1 and the outer panel 3a forms a groove-like space. A molding 4 covers this groove-like space from above.

Although the side portions of the molding 4 are in contact with the surface of the outer panel 3a, this contact alone cannot prevent water from entering along this boundary. It is unavoidable that a certain amount of water enters the groove-like space from this boundary surface. A sealing agent 5 is applied to the welded portion between the panel 1 and the panel 3a so that the water that has entered does not reach the welded portion of the panel 1 and the panel 3a.

However, in reality, the sealant 5 did not provide a sufficient sealing effect, and it was difficult to prevent water from entering the welded joint surface between the panel 1 and the panel 3a and rusting in this area. When water enters the interior through the gap between the molding 4 and the outer panel 3a, it is very difficult to evaporate and remains there for a long time. Therefore, water gradually corrodes the sealant 5 and enters the welded joint surface.

This idea was devised in view of the conventional problems mentioned above, and its purpose is to prevent water from entering the interior space of the molding through the gap between the molding and the surface of the roof side panel in the mohawk-shaped roof like the conventional example described above. To provide a roof molding mounting structure for an automobile, which quickly drains water to the outside and prevents water from reaching a welded joint surface between a main roof panel and a roof side panel.

<Means for Solving the Problems> In order to achieve the above object, the present invention provides a main roof panel in which drip channel portions are bent and formed on both side edges, and a drip channel portion of the main roof panel. A roof molding mounting structure for an automobile, comprising a roof side panel welded to a channel part, and a molding fitted and attached along an outer end rising piece of the drip channel part and covering a joint part of both the panels. The outside edge of the molding is integrally formed with a lip portion that contacts and covers the upper surface of the roof side panel, and the roof side panel has a raised piece and a lip portion that covers the upper surface of the roof side panel. A water drainage groove extending in the longitudinal direction of the vehicle body is integrally formed in the upper surface portion of the groove extending in the longitudinal direction of the vehicle body, which is located above the bottom wall portion of the groove extending in the longitudinal direction of the vehicle body formed by the lip portion, and is covered by the lip portion. The lip portion of the molding is characterized in that it touches the upper surface of the roof side panel at two points at the bank portions on both sides of the drain groove.

<<Operation>> According to the automobile roof molding mounting structure of the present invention having the above configuration, the space above the drain groove is covered with the lip part, and this part becomes a substantially closed conduit that extends in the longitudinal direction of the vehicle body. Even if water intrudes from the contact area between the roof side panel and the molding, which are in contact with the bank on the outside in the vehicle width direction of the drain groove, the water will immediately enter the drain groove, and the slope of the roof will cause the water to enter the drain groove. This intruding water overflows the drain groove and then passes through the contact area between the roof side panel and molding, which are in contact with the bank on the inside in the width direction of the vehicle, and flows down to the main roof. It does not penetrate into the welded joint surface between the panel and the roof side panel.

<<Example>> Fig. 1 and Fig. 2 show a roof molding mounting structure according to an embodiment of this invention, and Fig. 1 shows the state before the molding device described later.

The shape of the main roof panel 1 is almost the same as that of the conventional example shown in FIG. 3, and drip channel portions 2 are bent and formed on both side edges thereof. The roof side panel 3 includes an outer panel 3a and an inner panel 3.
The inner flange part 3c of this is welded to the bottom of the drip channel part 2 of the main roof panel 1, and these three panels 1, 3a, 3c are welded together. are joined together. The molding 4 is fitted and attached to the raised piece 2a of the drip channel part 2 so as to embrace it, and covers the joint between the panels 1 and 3 along the raised piece 2a.

As shown in the figure, the cross-sectional shape of the outer panel 3a of the roof side panel 3 is bent into a step-like shape from the top part matching the height of the main roof panel 1 toward the flange part 3c, and the top step part A concave drainage groove 3d is formed in the drain groove 3d. As shown in FIG. 1, this drain groove 3d is formed continuously in the longitudinal direction of the vehicle body, and its both ends can communicate with the external space at the front and rear ends of the roof.

Further, as shown in FIG. 2, the outer edge of the molding 4 is extended laterally to form a lip portion 4a that contacts and covers the upper surface of the roof side panel 3. The edge of the lip portion 4a contacts the top of the outer panel 3a at point A, and the center portion of the lower surface of the lip portion 4a contacts the upper surface of the outer panel 3a at point B. That is, the lip portion 4a of the molding 4 is in contact with the upper surface of the outer panel 3a at the bank portions A and B on both sides of the drain groove 3d. Therefore, the space above the drain groove 3d is covered with the lip part 4b, and this part becomes a substantially closed conduit that extends in the longitudinal direction of the vehicle body, and this conduit communicates with the external space at the front and rear ends of the roof. There is. In addition, in the space covered by the molding 4, the rising piece 2a and the outer panel 3
A sealant 5 is applied to the corner of the joint with a.

As is clear from the above explanation of the structure, even if water enters from the contact area A between the molding 4 and the roof side panel 3, the water immediately enters the drain groove 3d, and due to the slope of the roof, the water enters the drain groove 3d. As a result, it flows forward or backward and is led to the outside space. Therefore, almost no water overflows from the drain groove 3d, passes through the contact portion B, and invades the sealant 5.

Note that there is a structure in which a retainer for fixing the molding 4 is provided on the upper surface of the drip channel portion 2, but the present invention can be applied without any problems even in this case.

<<Effects of the invention>> As explained in detail above, in the automobile roof molding mounting structure according to this invention, the space above the drain groove is covered with a lip part, and this part becomes a substantially closed conduit. Because it extends in the longitudinal direction of the vehicle body, even if water enters from the contact area between the roof side panel and the molding, which are in contact with the bank on the outside of the drain groove in the vehicle width direction, the water will immediately flow into the drain groove. As the water enters the roof and flows forward or backward along the drain groove due to the slope of the roof, this intruding water overflows the drain groove and then reaches the roof side panel that is in contact with the bank on the inside in the width direction of the vehicle. It no longer passes through the contact area with the molding and penetrates into the welded joint surface between the main roof panel and the roof side panel, and the problem of rust generation is almost eliminated.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway perspective view showing the roof structure of an embodiment of this invention before the molding is attached, Fig. 2 is a longitudinal sectional view of the same roof structure with the molding attached, and Fig. 3 FIG. 2 is a vertical cross-sectional view showing a conventional roof molding mounting structure. 1...Main roof panel, 2...Drip channel portion, 2a...Rising piece, 3...Roof side panel, 3a...Outer panel, 3b...Inner panel, 3c...Flange portion, 3d... Drain groove, 4...Mall, 4a...Rip part, 5...
...Sealing agent.

Claims (1)

[Claims for Utility Model Registration] A main roof panel in which drip channel portions are bent and formed on both side edges, a roof side panel welded to the drip channel portions of the main roof panel, and the drip channel portions of the main roof panel. A roof molding mounting structure for an automobile, comprising a molding that is fitted and attached along a rising piece at the outer end of a petit yannnel portion and covers a joint between the two panels, the roof side panel being attached to an outer edge of the molding. A lip portion that contacts and covers the upper surface is integrally formed, and the roof side panel has a bottom of a groove extending in the longitudinal direction of the vehicle body formed by the rising piece and the roof side panel. A drain groove extending in the longitudinal direction of the vehicle body is integrally formed in the upper surface portion located above the wall portion and covered by the lip portion, and the lip portion of the molding is connected to the bank portions on both sides of the drain groove. An automobile roof molding mounting structure characterized in that the roof molding is in contact with the upper surface of the roof side panel at two places.