JPH0415125B2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to a frame-equipped door panel structure having a corner bracket that covers a triangular corner portion surrounded by a door panel body and a door frame. Specifically, the present invention relates to a door panel structure with a frame, which has a corner bracket that covers a triangular corner portion surrounded by a door panel body and a door frame. This invention relates to a frame-equipped door panel structure with improved properties.

[Conventional technology]

Conventionally, a door panel with a frame having a corner bracket has, for example, as shown in FIG. , a corner bracket 3 that covers a triangular corner surrounded by the door panel body 1 and the door frame 2; an outer cover 4 that covers the outside of the corner bracket 3; and a corner bracket 3 (not shown) attached to the other end of the door panel body 1 of the corner bracket 3. Has Satsushi. The corner bracket 3 is fixed to the door frame 2 with screws or the like. However, the lower edge of the corner bracket 3 is simply inserted between the outer door panel 1a and the inner door panel 1b, and is not fixed. For this reason, in this conventional door panel with a frame, the mounting rigidity of the corner bracket at the triangular corner part is not sufficient, resulting in the problem that, for example, the mounting rigidity of the door mirror attached to this part is low. . In order to solve this problem, for example, as shown in FIG. 6, the upper edge of the door panel inner 1b is bent downward to form a mounting flange 6, and the inner side of the corner bracket 3, which has a substantially U-shaped cross section, is bent downward. While the lower edge is welded to this flange 6, the upper edge of the door panel outer 1a and the corner bracket 3 are welded together.
There is one that brazes the outer surface of the In order to easily perform this brazing, the door panel outer 1a
The upper edge of is folded downward. In this conventional frame-equipped door panel, by brazing the upper edge of the door panel outer 1a and the outer surface of the corner bracket 3, the door panel body 1, the corner bracket 3, and the door frame 2
This provides the advantage of increased assembly rigidity. However, in this case, it is necessary to insert one electrode of the spot welding machine into the door panel inner 1b in order to overlaply weld the inner lower edge of the corner bracket 3 and the mounting flange 6, which reduces assembly work efficiency. Deteriorate. Furthermore, since the outer surface of the corner bracket 3 is brazed to the upper edge of the door panel outer 1a, the assembly workability becomes even worse. Furthermore, since it is necessary to insert one electrode of the spot welding machine into the door panel inner 1b, it is also disadvantageous that the thickness of the door panel inner 1b must be increased. For example, as shown in FIG. 7, when the upper edge of the door panel inner 1b is not folded downward (see Japanese Utility Model Publication No. 57-121319), the door panel body 1, corner bracket 3, and door frame 2 are assembled. The advantage of increased rigidity can be obtained. In addition, corner bracket 3 and door panel inner 1b
The workability of welding with the door panel inner 1b is improved, and there is an advantage that the thickness of the door panel inner 1b does not need to be increased. However, since the door panel outer 1a and the outer surface of the corner bracket 3 are brazed, there remains some dissatisfaction from the viewpoint of improving assembly workability. Further, the cross-sectional shape of the corner bracket 3 is relatively complicated, which is disadvantageous in terms of reducing the unit cost of parts and reducing the weight.

[Problem to be solved by the invention]

The present invention was conceived under these circumstances, and the problems it seeks to solve are:
By simplifying the shape of parts such as the corner bracket, door panel outer, and door panel inner, we aim to reduce the unit cost and weight of parts, further improve assembly workability, and further improve the assembly rigidity of the door panel body, door frame, and corner bracket. and so on.

[Means to solve the problem]

The present invention takes the following technical measures to solve the above problems. That is, in a door panel structure with a frame, in which a door frame is raised diagonally from one end of the door panel body, and a corner bracket is attached to a triangular corner portion surrounded by the door panel body, the door frame, and a sash, the door panel of the door panel body is The upper edges of the inner and outer door panels are raised toward the door frame to form internal and external mounting flanges, while a portion of the lower part of the corner bracket in the front-rear direction is bulged in the vehicle width direction. A bulging portion and a non-bulging portion were formed at the lower edge of the corner bracket, and one of the bulging portion and the non-bulging portion was fixed to the external mounting flange, and the other to the mounting flange by polymerization welding. It is characterized by

[Operation and effects of the invention]

In such a door panel structure with a frame, the inner and outer mounting flanges to which the corner brackets are welded are formed by raising the upper edges of the outer door panel and inner door panel toward the door frame.
The shapes of the door panel outer and door panel inner are simpler than the conventional door panel outer and door panel inner which are bent downward. Therefore, the number of press operations for forming these mounting flanges can be reduced, and the mold can be made inexpensive, so processing costs can be reduced. Furthermore, since the lower edge of the corner bracket is fixed by polymer welding to the mounting flange formed by raising the upper edge of the door panel inner toward the door frame, the corner bracket can be polymerized to the mounting flange bent downward. Compared to welding,
The workability of attaching the corner bracket to the inner door panel is improved. Moreover, by bulging a portion of the lower part of the corner bracket in the longitudinal direction in the vehicle width direction, a bulging part and a non-bulging part are formed at the lower edge of the corner bracket. The rigidity of the corner bracket itself is increased, and even if it is a single corner bracket, its lower edge is divided into the above-mentioned bulging part and non-bulging part, and one of these parts is attached to the external mounting flange of the door panel outer. Furthermore, since the other end is welded to the inner mounting flange of the door panel inner, the assembly rigidity of the door panel main body, door frame, and corner bracket is greatly increased.

[Explanation of Examples]

Embodiments of the present invention will be specifically described below with reference to the drawings. FIG. 1 is an exploded perspective view of a door panel structure with a frame according to the present invention, FIG. 2 is a vertical cross-sectional view of the main part thereof, and FIG. 3 is a cross-sectional view of the main part thereof. The door panel main body 10 is a door panel outer 10a.
and a door panel inner 10b, and a door frame 11 is raised diagonally rearward and upward from its front end. The upper edge of the door panel outer 10a extends over its entire length toward the door frame, that is, upwardly, and at the front of this upper edge, an external mounting flange 12 is formed.
is formed. The upper edge of the door panel inner 10b is raised toward the door frame over its entire length, and an inner mounting flange 13 is formed by raising its front part one step higher. The corner bracket 14 has a substantially triangular main body 14a whose oblique side is formed along the lower surface of the door frame 11, and flanges 14b and 14c extending outward from the oblique side and the vertical side. There is. The flange 14b on the oblique side and the door frame 11 are fixed by screws or the like, and a sash 15 for guiding a door glass (not shown) is fixed by welding to the flange 14c on the vertical side. Also,
At the lower part of the main body 14a of the corner bracket 14, a bulging portion 14d is formed which bulges outward in the vehicle width direction at an intermediate portion in the longitudinal direction. The lower edge of this corner bracket 14 has a bulging portion 14d in the middle thereof which is connected to the external mounting flange 1.
2, continuous non-bulging portions are welded to the inner mounting flange 13 so as to overlap with each other. The outer cover 16 that covers the corner bracket 13 from the outside is formed larger than the corner portion surrounded by the door panel body 10, the door frame 11, and the sash 15, and its peripheral edge is connected to the external mounting flange 12 and the door via the seal member 17. It is received by the frame 11 and the sash 15. This outer cover 16 is drawn inward, that is, to the corner bracket 14 side, by machine screws 18 inserted through the corner bracket 13. In this way, in the frame-equipped door panel structure of this example, the triangular opening surrounded by the door panel body 10, the door frame 11, and the sash 15 is sealed by the outer cover 16, so that the corner bracket 14, the door panel outer 10a, and the door panel inner 10b, it is possible to reliably prevent the intrusion of rainwater and the generation of wind noise without providing a sealing member such as a weather strip. Furthermore, since the inner and outer mounting flanges 12 and 13 to which the corner bracket 14 is welded are formed by raising the upper edges of the door panel outer 10a and the door panel inner 10b toward the door frame, the conventional upper edges are bent downward. The shapes of the door panel outer 10a and the door panel inner 10b are simpler than those of the previous model. Therefore, the number of press operations for forming these flanges 12 and 13 can be reduced, and the mold can be made inexpensive.
Processing costs can be reduced. Furthermore, since the bulging portion 14d, which is partially bulged outward at the bottom of the corner bracket 14, is joined to the external mounting flange 12 by spot welding or the like, the corner, which was conventionally formed in a U-shape, can be fixed. By omitting the outer surface of the bracket, the shape of the corner bracket 14 can be simplified, the unit cost of parts can be reduced, and the weight can be reduced. Furthermore, the corner bracket 14 is attached to the inner mounting flanges 12 and 13 formed by raising the upper edge of the door panel inner 10b toward the door frame 11.
Since the lower edge of the corner bracket 13 is fixed by polymerization welding, the corner bracket 13 of the door panel inner 1
Welding to 0b can be easily performed and the workability can be improved. In addition, since the corner bracket 13 is joined to the door panel outer 10a not by brazing but by welding with good workability such as spot welding, the workability is not reduced by brazing and the assembly is easy. Work efficiency is further improved. Furthermore, the rigidity of the corner bracket 14 is increased by extending a portion of the lower part of the corner bracket 14 in the longitudinal direction between the outer door panel 10a and the inner door panel 10b in the vehicle width direction. Since the lower edge of the bracket 14 is welded to both the door panel outer 10a and the door panel inner 10b, the assembly rigidity of the door panel body 10, the door frame 11, and the corner bracket 14 can be sufficiently increased. Of course, the present invention is not limited to the above embodiment, and for example, the door panel outer 10a
The front part of the upper edge may be extended higher toward the door frame, and the outer mounting flange 12 may be formed by this higher extended portion. Conversely, it is not necessary to extend the front part of the door panel inner 1b even higher. Further, the outer cover 16 may be constituted by a base plate of a door mirror 17, as shown in FIG. 4, for example.

[Brief explanation of drawings]

Figures 1 to 3 show an embodiment of the present invention, with Figure 1 being an exploded perspective view of its main parts, Figure 2 being a longitudinal cross-sectional view of its main parts, and Figure 3 being a cross-sectional view of its main parts. FIG. 4 is a vertical sectional view of a main part showing another embodiment of the present invention,
FIG. 5 is a vertical cross-sectional view of a main part of a conventional example, FIG. 6 is a vertical cross-sectional view of a main part of another conventional example, and FIG. 7 is a vertical cross-sectional view of a main part of another conventional example. 10...Door panel main body, 10a...Door panel outer, 10b...Door panel inner, 11...
...Door frame, 12...External mounting flange, 13
...Inner mounting flange, 14...Corner bracket, 15...Sash, 16...Outer cover.

Claims (1)

[Scope of Claims] 1. A door panel structure with a frame, in which a door frame is raised diagonally from one end of a door panel body, and a corner bracket is attached to a triangular corner portion surrounded by the door panel body, door frame, and sash, The upper edges of the door panel inner and the door panel outer of the door panel body are raised toward the door frame to form internal and external mounting flanges, while a portion of the lower part of the corner bracket in the front-rear direction is bulged out in the vehicle width direction. Preferably, a bulging portion and a non-bulging portion are formed at the lower edge of the corner bracket, and one of the bulging portion and the non-bulging portion is attached to the outer mounting flange, and the other is attached to the inner mounting flange. A door panel structure with a frame, each of which is fixed by polymeric welding.