JPS62129482A - Door hinge mount structure - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] <Industrial application field> The present invention relates to a door hinge mounting structure.

<Prior art> As for the conventional door hinge mounting structure, for example, Automotive Engineering Complete Book Volume 13 "Passenger Car Body" [April 2, 1980]
There are the ones shown on page 128 of ``Published by Sankaido Co., Ltd.] and the ones shown in Figures 4 to 8. The door hinge mounting portion 1 includes a hinge mail 3 that is mounted on the door inner panel 2 side, and a hinge female 5 that is mounted on the vehicle body, for example, on the side pillar 4 side with respect to the hinge mail 3.

The hinge mail 3 has a first hinge part 7 having a pin hole 6.
A flange part 8 is arranged above and below this first hinge part 7, and upper and lower both ends 8a and 8b of the flange part 8 arranged above and below and a base end part of the first hinge part 7 are provided. 9 is welded to the hinge attachment surface portion 10 of the door inner panel 2 to attach the hinge mail 3. In the figure, X and Y indicate welded beaded portions, respectively.

The hinge female 5 has a second hinge portion 1 having a pin hole 12 at a position corresponding to the pin hole 6 of the hinge female 3.
3, and the second hinge part 13 is connected to the first hinge part 7.
The hinge pin 1 is engaged with the pin hole 12.6 and inserted through the pin hole 12.6.
By pinning at 4, the hinge mail 3 and the hinge female 5 can be attached, and further, the door 15 side and the side pillar 4 side can be attached.

<Problems with the prior art> However, in such a conventional door hinge mounting structure, when attaching the hinge mail 3 to the door 15 side,
The base end 9 of the first hinge part 7 and the upper and lower ends 8a, 8b of the flange part 8 are welded to the hinge mounting surface part 10 of the door inner panel 2, and the weld bead Y of the base end 9 is used to attach the hinge. Since the weld bead Y is formed in a raised state on the surface of the surface portion 10, when the hinge mail 3 is rotated in the direction of arrow A in FIG. There is a risk of interference with the hinge female 5, so it is necessary to provide a notch 17 on the hinge female 5 side and to regulate the height and length of the build-up of the weld bead Y on the base end 9. For this reason, it is difficult to ensure sufficient welding strength for the hinge mail 3, and in particular, a slight gap is set between the base end 9 of the first hinge part 70 and the hinge mounting surface part 10 of the door inner panel 2. , the weld bead Y is arranged so as to fill this gap. As a result, the welding strength of the hinge mail 3 is weakened due to the above-mentioned regulation of the height and length of the weld bead Y, and the retention of the door 15 is reduced, and the strength of the hinge female 5 is also reduced due to the formation of the notch 17. It is something that will happen. Further, since it is necessary to take the height of the weld bead Y into consideration, the work efficiency is reduced accordingly.

This invention has been made by focusing on such conventional technology, and involves inserting an extension part provided at the base end of the first hinge part into an opening provided in a part of the hinge mounting surface part of the door inner panel. To provide a door hinge mounting structure which avoids interference between a hinge mail 3 and a hinge female 5 and improves strength by welding from the back side of the door inner panel.

Means for Solving the Problems> In order to achieve the above object, the door hinge mounting structure according to the present invention has the following features: For the hinge mail on the door side, which is attached by welding the upper and lower ends of both flanges placed on the door inner panel to the hinge mounting surface of the door inner panel,
In the door hinge mounting structure in which the second hinge part of the hinge female attached to the vehicle body is engaged with the first hinge part of the hinge mail and pinned with a hinge pin, the door inner panel has an opening in a part of the hinge mounting surface part. The first hinge part of the hinge mail has an extension part at its base end, and the extension part is inserted into the opening of the door inner panel and welded from the back side of the door inner panel. There is.

Function> The extension part provided at the base end of the first hinge part is inserted into the opening provided in a part of the hinge attachment surface part of the door inner panel. This makes it easy to position the hinge mail on the door inner panel, and by welding the extension from the back side of the door inner panel, a weld bead for attaching the hinge mail will be formed on the back side of the door inner panel. Since there is no interference with the hinge female and there is no need to consider the height regulation of the weld bead, it is possible to improve welding strength and workability.

Example of implementation The details of this invention will be explained below based on the drawings.

Note that, hereinafter, parts common to those in the prior art will be indicated by the same reference numerals, and redundant explanation will be omitted.

1 to 3 are diagrams showing one embodiment of the present invention.

The door inner panel 2 includes an opening 20 in a part of the hinge mounting surface 10.

The first hinge part 7 of the partial hinge mail 3 is provided with an extension part 21 at its base end 9, and the cross-sectional size of the extension part 21 is designed to approximately correspond to the size of the opening 20.

Then, when the extension part 21 of the hinge mail 3 is applied to the opening 20 of the door inner panel 2 and inserted into the door inner panel 2 side, the flange part 8 of the hinge mail 3 comes into contact with the hinge mounting surface lO of the door inner panel 2. The extension part 21 stops in a state where it is inserted into the back surface 2a of the door inner panel 2.

In this state, extend the extension 2 from the back side 2a of the door inner panel 2.
1, and since the weld bead Y is not formed on the surface of the door inner panel 2, the weld bead Y does not interfere with the hinge female 5 on the side pillar 4 side, and therefore the welding length of the weld bead Y is Since the height, that is, the build-up of the weld bead Y is not particularly restricted, welding strength and welding workability can be improved.

In addition, since the extension part 21 of the hinge mail 3 is inserted into the opening 20 of the door inner panel 2, alignment can be made using this opening 20, and the positioning of the hinge mail 3 on the door inner panel 2 is facilitated, and the sizes are approximately the same. The extension part 21 is inserted into the opening 20, and the opening 20 is inserted into the extension part 21.
The upper and lower end portions 3a and 3b of the flange portion 8 can be welded to the hinge mounting surface portion 10 while the hinge mail 3 is supported against the door inner panel 2 as a “contact surface portion”, so that the welding work is easy and the insertion By welding the extension part 21 in this state, the strength against the load applied to the hinge mail 3 in the downward peeling direction [in the direction of arrow B in FIG. The strength is improved by the extension 21 welded on the back side 23 of the inner panel 2.

Effects> Since the door hinge mounting structure according to the present invention is as described above, many excellent effects can be expected, and the inherent effects are listed below.

(b) Insert the extension provided at the base end of the hinge mail into the opening of the door inner panel and weld this extension from the back side of the door inner panel, so that the weld bead at this part is attached to the hinge female on the vehicle body side. Therefore, the welding length and height of the weld bead can be maximized, improving welding strength and welding workability. Because it supports the extension of the hinge mail, it is easy to position the hinge mail on the door inner panel, and (c) the upper and lower ends of the flange and the extension can be welded while supported. Therefore, the welding work is even easier. (d) The extension part is inserted into the opening and the extension part is welded on the back side of the door inner panel, which improves the strength against the load in the peeling direction. .

[Brief explanation of drawings]

Fig. 1 is a schematic perspective view showing the relationship between the hinge mail and the door inner panel of the door hinge mounting structure according to the present invention, and Fig. 2 shows the hinge mail attached to the door inner panel and the hinge attached to the side pillar. A side view of the assembled female as seen from the direction indicated by the arrow in Fig. 1; Fig. 3 is a schematic plan view of the main parts broken away showing the state of the hinge mail and the hinge female when the door is opened; Fig. 4 is a schematic perspective view showing the mounting structure of a conventional door hinge; Fig. 5 is a schematic plan view corresponding to Fig. 3 when the door is closed; Fig. 6 is a schematic perspective view showing the mounting structure of a conventional door hinge; FIG. 7 is a schematic perspective view showing the hinge mail attached to the door inner panel, and FIG. 8 is a schematic plan view corresponding to FIG. FIG. 1- Door hinge attachment part 2...-Door inner panel 2a-Back side of door inner panel 3-Hinge mail 4-Side pillar (vehicle body) 5--Hinge female 6.12- Pin hole 7...-No. 1 Hinge part 8 - Flange part 8a - Upper end part 8b - Lower end part 9 - Base end part 10 - Hinge mounting surface part 13 - Second hinge part 14 - Hinge bin 20 - Opening 21 - Extension part X , Y-m-welding bead Fig. 1

Claims (1)

[Claims] The base end of the first hinge portion having the pin hole and the upper and lower end portions of both flange portions arranged above and below the first hinge portion are attached to the hinge mounting surface of the door inner panel. In a door hinge mounting structure in which the second hinge part of the hinge female attached to the vehicle body is engaged with the first hinge part of the hinge mail and pinned with a hinge pin to the door side hinge mail that is attached by welding, The door inner panel has an opening in a part of the hinge mounting surface, and the first hinge part of the hinge mail has an extension part at its base end, and this extension part is inserted into the opening of the door inner panel to open the door. A door hinge mounting structure characterized by welding from the back side of the inner panel.