Car door with rust prevention structure

专利摘要:
The present invention relates to an automobile door having a rust preventing structure. An automobile door according to the present invention is a door of an automobile in which the flange portions of the inner and outer panels 1 and 2 are joined by hemming and spot welding, wherein the side plan is joined by spot welding of the inner panel 1. The electrodeposition liquid injection port 3 is formed between the flange part of the outer panel 2 by the bead part 1a formed convexly in several places of a branch.
公开号:KR19980053727A
申请号:KR1019960072855
申请日:1996-12-27
公开日:1998-09-25
发明作者:박규환
申请人:김영귀；기아자동차 주식회사；
IPC主号:

专利说明:

Car door with rust prevention structure
The present invention relates to an automobile door, and more particularly to an automobile door having a rust prevention structure.
In general, the vehicle door is attached to the side of the vehicle, as shown in Figure 1, serves to open and close the interior and exterior of the vehicle so that passengers of the vehicle can ride down. The door of the vehicle is made of steel plate, as shown in Figure 2, the inner panel 1 and the outer panel 2 are made by opposing and arranging at predetermined intervals and joining each flange portion by hemming and spot welding.
The door of the car is painted to prevent rust during use, the electrodeposition coating method using electrolysis is mainly used.
However, the conventional automobile door as described above, as shown in Figure 2, the flange portion joined by spot welding abuts, the electrodeposition liquid is not sufficiently injected into the interior space of the door is poor paint on the inner surface of the door Therefore, there was a disadvantage that the rust from the inner surface of the door.
Accordingly, an object of the present invention is to provide an automobile door having a rust prevention structure in which an electrodeposition liquid injection hole is formed so that electrodeposition liquid can be sufficiently injected into the inner space of the door.
1 is a side view of a typical car.
2 is a cross-sectional view taken along the line II-II of FIG.
3 is a cross-sectional view showing an electrodeposition liquid injection portion of the door having a rust prevention structure according to the present invention.
4 is a side cross-sectional view of FIG.
* Explanation of symbols for main parts of drawings *
1: Inner panel 1a: Bead part
2: outer panel 3: electrodeposition liquid injection port
In order to achieve the above object, the present invention provides a door of an automobile in which flange parts of an inner and outer panel are joined by hemming and spot welding. The electrodeposition liquid injection hole is formed between the outer panel flange portion by the convex bead portion.
EXAMPLE
Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.
An automobile door having a rust prevention structure according to the present invention is formed by joining the flange portions of the inner and outer panels 1 and 2 opposed to each other at predetermined intervals, and the joining of the flange portions is by hemming and the other side is It is joined by spot welding performed at regular intervals along the flange portion.
Looking at the flange portion of the side joined by the spot welding, the spot welded portion is in contact with each other the flange portions of the inner and outer panels 1 and 2, similar to the conventional structure shown in FIG. However, in some places of the flange portion, one side of the inner panel 1 has a convexly raised bead portion 1a as shown in FIGS. 3 and 4, and the inner panel ( A predetermined space is formed between 1) and the outer panel 2. That is, the electrodeposition liquid injection port 3 through which the electrodeposition liquid may be injected into the inner space of the door is formed. The height of the electrodeposition liquid inlet (3) is approximately 0.8mm ~ 1.2mm, length is about 8mm ~ 12mm is suitable.
In the electrodeposition coating operation, the electrodeposition liquid is injected into the inner space of the door through the electrodeposition liquid inlet 3 as described above.
According to the present invention as described above, the electrodeposition liquid can be easily injected into the interior space of the door through the electrodeposition liquid inlet, the paintability on the inner surface of the door is improved to improve the quality of the door and extend the life There is an advantage.

权利要求:
Claims (1)
[1" claim-type="Currently amended] In a door of an automobile in which the flange portion of the inner and outer panels is joined by hemming and spot welding, a bead portion is formed at several positions of the side flange portion joined to the inner panel, and an electrodeposition liquid injection hole is formed inside the bead portion. An automobile door having a rust prevention structure characterized in that the

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同族专利:

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公开号 | 公开日

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引用文献:

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公开号 | 申请日 | 公开日 | 申请人 | 专利标题

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法律状态:
1996-12-27|Application filed by 김영귀, 기아자동차 주식회사

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1996-12-27|Priority to KR1019960072855A

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1998-09-25|Publication of KR19980053727A

优先权:

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申请号 | 申请日 | 专利标题

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KR1019960072855A|KR19980053727A|1996-12-27|1996-12-27|Car door with rust prevention structure|