JPH0533367Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a mounting structure for a corner piece in an automobile side door.

(Prior Art) For example, the side door of an automobile is disclosed in Japanese Utility Model Publication No. 1982-1989.
One such door structure is shown in the official gazette of 121319. In this structure, a door body is made up of an inner panel and an outer panel facing each other, and a window sash is protruding from the upper end of this door body. In addition, a sheet metal corner piece is attached to the corner sandwiched between the upper end of the door body and the front part of the window sash.

The corner piece has an inverted U-shape in cross section, and the lower end of the interior surface of the corner piece and the upper end of the inner panel are fixed by spot welding.
On the other hand, the upper end of the outer panel is folded back toward the inner side of the vehicle and the lower end of the corner piece is fixed to the lower end of the corner piece on the outer side of the vehicle.

(Problems to be solved by the invention) By the way, the above conventional configuration has the following problems.

First, as mentioned above, the corner piece has an inverted U-shaped cross section, one lower end of which is fixed to the upper end of the inner panel, and the other lower end fixed to the upper end of the outer panel. Since there are multiple fixing points, the work of fixing each of them by spot welding becomes complicated.

Second, when the lower end of the other corner piece and the upper end of the outer panel are spot welded to each other as described above, the upper end of the outer panel may be distorted by the pressure welding force of the welding gun. , is directly connected to the outer surface part of the outer panel that is easily visible from outside the vehicle, so the above distortion extends to the outer surface part of the outer panel,
The appearance of the door may deteriorate.

(Purpose of the invention) This invention was made with attention to the above circumstances, and its purpose is as follows.

First, the upper ends of the inner and outer panels and the lower ends of the corner pieces can be easily fixed together by spot welding.

Second, even if the upper ends of the inner and outer panels and the lower ends of the corner pieces are spot welded, distortion is not caused in the outer surface part of the outer panel that is easily visible from outside the vehicle, and the appearance of the door is maintained in a good condition.

(Structure of the device) The feature of this device to achieve the above object is that the upper end of the outer panel is once bent towards the inside of the vehicle to form an upper piece, and then the edge of this upper piece is bent upward. The upper end of the inner panel, the bent piece, and the lower end of the corner piece are stacked and spot-welded to each other, and the upper surface side of the upper piece is formed into a recess. The point is that this upper piece is bent and formed so that it looks like this.

(Example) Hereinafter, an example of this invention will be described with reference to the drawings.

In FIG. 2, numeral 1 indicates a front door, which is a side door for an automobile, and is a door with a sash. This front door 1 includes a door body 2 and a door window 3 formed above this door body 2.
It has

The door body 2 is composed of an inner panel 5 and an outer panel 6 facing each other at a predetermined distance, and a slit 7 is formed between the upper ends of these panels 5 and 6. A door trim 8 is attached to the interior side of the inner panel 5, and a waistline molding 9 is attached to the upper end of the inner panel 5, extending along the upper end.

On the other hand, the door window 3 has a window sash 11 projecting upward from the upper end of the door body 2, and a space surrounded by the upper end of the door body 2 and the window sash 11 serves as a window opening 12. ing. This window opening 12 is formed by the above-mentioned slit 7.
It is opened and closed by a window glass 13 that extends and retreats from the upper end of the door body 2 through the door.

Further, a guide frame 14 into which the front end of the window glass 13 is fitted and guides the window glass 13 in a vertically slidable manner is provided at the front of the window opening 12. The upper end of this guide frame 14 is connected to the front sash 1 constituting the wind sash 11.
6, and the lower end is attached to the door body 2.

The upper end of the door body 2 and the window sash 1
A corner piece 1 made of sheet metal is located at the corner surrounded by the front sash 16 and the guide frame 14 that constitute the corner piece 1.
7 is attached. A door mirror 18 is screwed to the outside surface of the corner piece 17.

The attachment portion of the corner piece 17 will be explained in more detail. The shape of this corner piece 17 is approximately one flat plate as shown in FIGS. 1 and 4, and is approximately triangular when viewed from the side as shown in FIGS. 2 and 3. There is. The front end 17a of this corner piece 17 is bent toward the outside of the vehicle and joined to the front section 16,
This joint is a first spot weld A. On the other hand, the rear end 17b of the corner piece 17 is bent and joined along the front surface of the guide frame 14 and the outer side surface of the vehicle, and this joint portion is welded with a second spot B.

As shown in FIG. 1, the lower part of the corner piece 17 has a plate shape extending downward. Further, the upper end of the inner panel 5 is once bent toward the outside of the vehicle so as to correspond to the lower end 17c of the corner piece 17, and then further bent upward, and a first bent piece 20 is formed here. ing.

On the other hand, the upper end of the outer panel 6 is once bent almost horizontally toward the inside of the vehicle, thereby forming an upper piece 23. Also, this upper piece 2
3 is the lower end 17 of the corner piece 17
It is bent upward to correspond to c, and the end edge bent in this way becomes a second bent piece 24, which is a bent piece. The first bent piece 20 and the second bent piece 24 sandwich the lower end 17c of the corner piece 17, and these three pieces are joined by surface contact to form a triple structure. And this joint is the third spot weld C.
are fixed to each other by.

In the above case, the lower end 17c of the corner piece 17
is plate-shaped, and the lower end 17c of the corner piece 17
The first and second bending pieces 20 and 24 are located above the door body 2 where a wide working space can be obtained. For this reason, the above three parties
Spot welding of the joints c, 20, and 24 can be facilitated by utilizing the above-mentioned wide working space.

The upper piece 23 is bent so that the upper surface side of the upper piece 23 becomes a recessed portion. and,
By forming this recess, the outer panel 6
The rigidity has been improved. Furthermore, when attaching the molding 9 to the upper end of the outer panel 6, sufficient strength for the attachment is ensured by fitting a portion of the molding 9 into the recess.

Further, the outer edge of the corner piece 17 is connected to the inner panel 5, the outer panel 6 and the front sash 1.
6 and are fixed by spot welding, it is possible to prevent dust from outside the vehicle from entering the vehicle compartment or the inside of the door body 2 through the mounting portions of the corner pieces 17.

In the embodiment described above, the door mirror 18 is attached to the corner piece 17, but instead of this, a garnish that covers the outside surface of the corner piece 17 may be attached.

(Effect of idea) The effects of this invention are as follows.

First, the upper ends of the inner and outer panels and the lower ends of the corner pieces are stacked in three layers and spot welded to each other, compared to the conventional method of fixing the inner and outer panels and corner pieces individually. , these fixing operations become easier.
In addition, as mentioned above, the inner, outer panel, and corner piece are fixed in three layers and reinforce each other, so the strength of the fixation of the three is improved compared to fixing them individually. .

Second, as described above, since the strength of the fixation between the three members is improved, it is possible to prevent distortion from occurring in the outer surface portion of the outer panel.

Furthermore, when spot-welding the corner piece to the bent piece that is connected to the upper piece that is the upper end of the outer panel, the bent piece may be distorted by the pressure welding force of the welding gun. This distortion is absorbed by the recess formed in the outer panel, and is prevented from extending to the outer surface portion of the outer panel that is easily visible from outside the vehicle.

Therefore, even when the above-mentioned spot welding is performed, the appearance of the door remains good.

[Brief explanation of the drawing]

The figures show an embodiment of this invention, in which Fig. 1 is a cross-sectional view taken along the - line in Fig. 2, Fig. 2 is an overall side view of an automobile front door, and Fig. 3 is a perspective view of the front part of the door window. FIG. 4 is a sectional view taken along the - line in FIG. 2. 1...Front door (side door), 2...Door body, 3...Door window, 5...Inner panel, 6...Outer panel, 11...Window sash, 17...Corner piece, 17c...Lower end , 20...first folded piece (upper end), 23...upper piece, 24...second folded piece (folded piece).

Claims (1)

[Scope of utility model registration request] A door body is constituted by an inner panel and an outer panel facing each other, and a window sash is provided protruding from the upper end of the door body, and the upper end of the door body and
In an automobile side door in which a corner piece made of sheet metal is provided at the corner sandwiched between the front part of the window sash, the upper end of the outer panel is once bent towards the inside of the vehicle to form an upper piece, and then this upper part is further folded. The edge of the piece is bent upward to form a bent piece, and the upper end of the inner panel, the bent piece, and the lower end of the corner piece are stacked and spot-welded to each other in three pieces, and A door window corner piece mounting structure in which the upper piece is bent so that the upper surface side of the upper piece becomes a recess.