JPH049205Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a vehicle door, and particularly to a vehicle door in which an outer panel side and an inner panel side are welded at appropriate positions to increase rigidity.

(Prior Art) Conventionally, vehicle doors are often made by integrating an outer panel and an inner panel, which are press-molded sheet metal products, by clinching or the like, and then welding them at appropriate places to strengthen the door rigidity.

For example, in an automobile door, the peripheral edge of an outer panel and the left and right side edges and bottom edge of an inner panel are joined together by clinching. In this case, as shown in FIG. 6, an oblong plate-shaped outer panel reinforcement 4 is welded to the outer panel 1 along the inner surface of its upper edge 3, and a door sill 5 is integrally connected to the inner panel 2. be done. A glass opening 8 through which the door glass 7 is inserted is formed long between the upper edges 3 and 6 of both panels, except for the left and right ends. Therefore, when the central portions of the upper edges 3 and 6 receive external force, particularly in the door thickness direction Y, they are likely to be displaced. Therefore, the door sash 5 and the outer panel reinforcement 4 are usually welded by arc welding or the like (shown as a weld W) to strengthen the rigidity of the periphery of the glass opening 8.

(Problem to be solved by the invention) However, in conventional vehicle doors, when performing welding work between the door sash 5 and the outer panel reinforcement 4, the space for accommodating the door glass 7, etc. between the two panels 1 and 2 is narrow. , Torch 9 during welding work
The weld W is located in the shadow of the weld W, making it difficult to see visually and resulting in poor welding work.

An object of the present invention is to provide a vehicle door with good welding workability when assembling the door body.

(Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention includes a method in which the left and right peripheral edges of the outer panel are overlapped with the left and right peripheral edges of the inner panel, and then integrally joined by bending. The door body includes a door body in which the left and right edges of an outer panel reinforcement joined to the upper edge of the outer panel are respectively sandwiched by the left and right peripheral edges of both panels and integrally joined by bending, and the door body and A weather strip that maintains airtightness with the door opening of the vehicle body is adhered to the peripheral edge of the inner panel, and in particular, the position on the inner panel where the outer panel reinforcement is polymerized and the weather strip is adhered. A through-hole is formed in the through-hole, and the mouth edge of the through-hole is welded to a portion of the outer panel reinforcement on the inner side facing the through-hole. (Function) The through hole formed at the position where the outer panel reinforcement is polymerized and the weather strip is bonded can be easily seen directly from the outside during welding before the weather strip is bonded.
Welding work between the edge of the through hole and the outer panel reinforcement can be easily performed from the outside on the inner panel side of the door body.

(Example) FIG. 1 shows an automobile door as an example of the present invention. This automobile door has an external shape as shown in FIG. 2, and is mainly used for cab-over type vehicles. This automobile door has an outer panel 10, an inner panel 11, a door sash 12, and an upper edge 101 of the outer panel 10.
It is formed by integrally combining the outer panel reinforcement 13 which is welded to the inner side surface 102 side (see FIG. 3).

As shown in FIG. 2, in order to expand the side visibility of the vehicle, the upper edge 101 of the outer panel of this automobile door has a step.
The part facing the glass opening 15 through which the glass opening 15 (see Fig. 3) is inserted is formed almost horizontally, and the front part (left side in Fig. 2) extends further horizontally at a position one step lower through the stepped part. , the upper edge 101 is formed. As shown in FIGS. 4 and 5, the cross section of this part is such that the upper end of the upper edge 101 is bent toward the inner panel 11 side, the edge is further bent downward, and the downward edge The upper edge of the outer panel reinforcement 13 is welded to 103.

The outer panel reinforcement 13 is formed to be elongated in the lateral direction along the upper edge 101 , has a cross-section shaped like a flattened hat, and its lower edge is bonded to the inner surface 102 with an adhesive 16 . Furthermore, outer panel reinforcement 13
The left and right end cross sections are formed as end piece portions 131 (see FIG. 3) that are more plate-like than a hat shape, and are formed to be clinchable.

The upper edge 111 of the inner panel 11 is arranged opposite to the upper edge 101 through a glass opening 15 of a predetermined width, and as shown in FIG. 4, its cross-sectional shape is curved toward the outer panel 10, and The ends are bent downward. The left, right and lower peripheral edges of the inner panel 11 are bent in the door thickness direction Y, and the side plate portion 1 has a width approximately equal to the door thickness.
7, 18 and a bottom plate part 19, and a step part 20 and a clinch end piece part 21 extending therefrom are formed continuously from the edges of these parts.

The inner panel 11 on the door body side and the door sash 12 overlap the periphery of a door opening formed on the cabin side (not shown), and a weather strip 22 is provided between them to ensure airtightness between them. In this automobile door, the stepped portion 20
The weather strip 22 is bonded to the bent position between the side plate portion 18 and the side plate portion 18. Among these adhesion positions, the stepped portion 20
A through hole 23 is formed at a position facing the outer panel reinforcement 13 on the side during press molding.

Note that a concave portion that is one step lower than other portions is formed at a position on the stepped portion 20 surrounding the through hole 23, thereby eliminating post-processing associated with plug welding of the through hole 23, which will be described later. There is.

In such an automobile door, first, an outer panel reinforcement 13 is welded to an outer panel 10 which is press-molded, and is integrated.
Similarly, the door sash 12 is attached to the inner panel 11.
The base of the lower end is welded and integrated.

Next, both panels 10, 11 are superimposed on each other,
They are joined together by bending. In this bending process, a clinching process is performed in which the end piece 21 of the inner panel is held between the peripheral edge of the outer panel 10 and the folded piece 24 that extends from the peripheral edge and is folded back. At this time, the end piece 131 of the outer panel reinforcement is also overlapped with the end piece 21 of the inner panel and clinched.

Thereafter, arc welding is performed from the outside side of the door body through the through hole 23 using a torch 9 to connect this opening edge to the outer panel reinforcement 13 that abuts on the back side. As a result, the through hole 23
The mouth edge is plug welded, and both upper edges 10
The rigidity around the glass opening 15 formed by No. 1,111 is strengthened by the welded portion W1. Note that the position of the through hole 23 is covered by the weather strip 22 and is not exposed to the outside.

When an external force is applied in the door thickness direction Y to the outer panel 10 of such an automobile door, the external force is applied to the inner panel 1 around the through hole 23 from the outer panel reinforcement 13 integrated with the upper edge 101.
1, and the displacement of the upper edge 101 is kept low.

In the above description, the automobile door has been described as being for a cab-over type vehicle, but the present invention can also be applied to other vehicle doors equipped with an outer panel reinforcement.

(Effects of the invention) According to the invention, welding between the inner panel and the outer panel reinforcement through the through hole is performed from the outside of the door body, so welding work when assembling the door body can be easily performed.

[Brief explanation of drawings]

Fig. 1 is a partial side view of an automobile door as an embodiment of the present invention with the outer panel removed; Fig. 2 is a schematic front view of the same automobile door;
Figure 4 is a sectional view taken along the - line in Figure 1, Figure 5 is a sectional view taken along the - line in Figure 1, and Figure 6 is a sectional view taken along the - line in Figure 1.
The figures each show a sectional view of a main part of a conventional automobile door. 10... Outer panel, 11... Inner panel, 13... Outer panel reinforcement,
22... Weather strip, 23... Through hole, 1
01,111... Upper edge.

Claims (1)

[Scope of utility model registration request] The left and right peripheral edges of the outer panel overlap the left and right peripheral edges of the inner panel and are integrally joined by bending, and the left and right ends of the outer panel reinforcement joined to the upper edge of the outer panel are connected to the left and right edges of the inner panel. A door body is provided which is sandwiched between the left and right peripheral edges and integrally joined by bending, and a weather strip is adhered to the peripheral edge of the inner panel to maintain airtightness between the door body and the door opening of the vehicle body. In the vehicle door, a through hole is formed on the inner panel at a position where the outer panel reinforcement is superimposed and the weather strip is bonded, and the edge of the through hole and the outer panel reinforcement on the inside thereof are formed. A vehicle door characterized in that a portion facing the through hole is welded.