JPH0133369Y2 - - Google Patents

Description

[Detailed explanation of the invention] A. Industrial application field This invention is applied to automobile doors.
In particular, it relates to a door in which the end of the door frame is inserted between an inner panel and an outer panel and is fixed to the inner panel.

B. Prior Art For example, as shown in FIG. 1, an automobile door 1 is
The inner panel 2 and the outer panel 3 are configured to have a closed cross-sectional structure, and the ends of both 2 and 3 are integrally joined by seaming, butting, or the like. However, since the upper part of the door 1 is provided with a window glass 4 and a door frame 5 that holds the window glass 4, the upper surface is open, and furthermore, a weather strip is attached to the outer surface of the door frame 5. Since the lower end of this rail member 6 is placed on the upper surface of the inner panel 2, it is difficult in manufacturing to extend the upper edge of the inner panel 2 to the upper end of the outer panel 3. ,
A gap 7 as shown in FIG. 2 was created between the inner panel 2 and the outer panel 3 on the outside of the door frame 5. Therefore, the sealing performance is poor, and rainwater and dust enter through the gap 7, and the inner panel 2
There was a problem in that rust developed on the upper end of the product, and this was visible from the outside, impairing the appearance.

As a means for solving the above-mentioned gap problem, for example, there is a means disclosed in Japanese Utility Model Application Publication No. 51-39924. This is configured such that a sealing member made of an elastic material is loaded into the gap 7 between the inner panel 2 and the outer panel 3. Although this method eliminates the gap, it has the drawback of increasing the number of parts and man-hours, resulting in high costs.

C. Purpose of the invention This invention aims to eliminate the gap between the inner panel and the outer panel on the outside of the door frame without using separate parts, and to provide a door in which the upper end of the inner panel is covered so that it is not visible from the outside. It is something to do.

D. Structure of the invention In the door of this invention, a notch is formed at the upper edge of the door frame attachment part of the inner panel, and the lower end of the weather strip attachment rail member attached to the door frame is connected to the outer panel. Insert and intersect the folded flange on the upper edge, and hem the edge of the inner panel to the inner surface of the folded flange on the outer panel at the rear of the weather strip mounting surface of the inner panel. , the outer panel is integrally joined. Note that brazing or sealer application is performed at necessary locations between the inner panel and the door frame and between the inner panel and the outer panel.

E. Example In FIGS. 3 and 4, 11 is an inner panel constituting the door 10, 12 is an outer panel,
Both have a closed cross-sectional structure by bending the edge of the outer panel 12 toward the edge of the inner panel 11 and joining together by tightening the peripheral edges except for the upper surface. Reference numeral 13 designates a door frame for holding a window glass, which has a guide groove 15 formed on its inner surface for attaching a launch channel 14, and a rail member 17 for attaching a weather strip 16 to its outer surface. The end of the door frame 13 is inserted between the inner panel 11 and the outer panel 12, brought into contact with the side wall 18 of the door frame mounting portion of the inner panel 11, and integrally joined by spot welding.

Then, a notch 19 is formed in the upper corner of the side wall 18 of the inner panel 11 to which the door frame 13 is attached, on the side of the outer panel 12, and the upper part is bent slightly outward from the notch 19 to form a step 20, and the upper end is extended to a position where it interferes with the bending flange 21 of the outer panel 12, and is bulged below the step 20 so as to be flush and continuous with the weather strip mounting rail member 17 formed on the door frame 13. A weather strip mounting surface 22 is formed.

As shown in FIG. 5, the door is constructed by first overlapping the ends of the door frame 13 along the side wall 18 of the inner panel 11, and inserting the lower end of the rail member 17 into the notch 19 of the inner panel 11. , door frame 13 and inner panel 11
and the side wall 18 of the main body. Next, the outer panel 12 is assembled on the outside of the inner panel 11, and the bent flange 21 of the outer panel 12 is inserted into the notch 19 of the inner panel 11 to be sandwiched between the upper end of the inner panel 11 and the rail member 17,
Weather strip mounting surface 2 of inner panel 11
2, the edges of the outer panel 12 and the inner panel 11 are hemmed and joined together. Then, the necessary places between the side wall 18 of the inner panel 11 and the door frame 13 are brazed, a sealer is applied to the necessary places between the inner panel 11 and the bending flange 21 of the outer panel 12, and finally the inner panel 11 The weather strip 16 is mounted on the weather strip mounting surface 22 of the door frame 13 and within the rail member 17 of the door frame 13.

In the above door, the mounting surface 22 of the weather strip 16 on the inner panel 11 and the transition part from the rail member 17 of the door frame 13 to the mounting surface 22 are flush and continuous, and the weather strip at the transition part is continuous. Good adhesion with No. 16 and no reduction in sealing performance.

Effects of the invention This invention utilizes the notch formed in the door frame attachment part of the inner panel to intersect the weather strip attachment rail member of the door frame and the bent flange of the outer panel from the inside of the inner panel to the outside. Furthermore, the upper end of the inner panel is overlapped and joined to the inner surface of the bent flange of the outer panel at the rear of the notch, so there is no gap between the inner panel and the outer panel on the outside of the door frame. Unnecessary infiltration of rainwater, dust, etc. into the door can be prevented. Furthermore, by applying a sealer to the joint between the upper end of the inner panel and the bending flange of the outer panel, it is possible to improve the sealing performance and rust prevention effect, so even if rust occurs at the upper end of the inner panel, the The rusted part is covered by the bent flange of the outer panel, making it invisible from the outside and improving the appearance.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a main part showing a conventional example of a door frame attachment part of an automobile door, Fig. 2 is an enlarged sectional view taken along the line of Fig. 1, and Fig. 3 is a door frame attachment part of an automobile door according to the present invention. FIG. 4 is an enlarged sectional view taken along the line of FIG.
FIG. 5 is an enlarged perspective view of the main parts of the door frame attachment part. 10...Door, 11...Inner panel, 12...
...Outer panel, 13...Door frame, 16...
...Weather strip, 17...Rail member, 1
8...Side wall, 19...Notch, 21...Bending flange.

Claims (1)

[Scope of utility model registration request] In a door consisting of an inner panel and an outer panel, in which the end of the door frame is inserted into the door and fixed to the inner panel by welding, a notch is formed at the upper edge of the door frame attachment part of the inner panel,
Insert the lower end of the weather strip mounting rail member attached to the door frame and the bent flange on the upper edge of the outer panel into the notch so that they intersect, and at the rear of the weather strip mounting surface of the inner panel. An automobile door characterized in that the inner panel, the door frame, and the outer panel are integrally joined by hemming the end face of the inner panel to the inner surface of the bent flange of the outer panel.