JPH0712464B2 - How to paint the car body - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for coating an opening / closing body such as various doors, hoods, trunk lids, etc., which constitute a part of a vehicle body outer panel. More specifically, the present invention relates to a method for coating an automobile opening / closing body, which can simplify the work of applying a rust preventive agent such as rust preventive wax or rust preventive oil to a hemming portion or the like inside the open / close body.

[0002]

2. Description of the Related Art When an opening / closing body of this type is infiltrated with rainwater or the like, rainwater or the like collects in the hemming portions of the outer panel and the inner panel, and rust occurs in the hemming portions. For this reason, conventionally, a rust preventive agent is applied to the hemmed portion. Conventionally, as a door that simplifies the work of applying this type of rust preventive agent, a long hole in the front-rear direction is formed at the lower end of the inner panel over almost the entire width, and opening holes larger than the long hole are formed at both ends of this long hole. It has been proposed to insert a coating nozzle through the opening and move the nozzle along the long hole to coat the hemmed portion (Actual Publication No. 60-11822). However, in the door with the above structure,
Reinforcement is set between the outer panel and inner panel
If there is any, the coating nozzle will catch on the reinforcement material
Not only the work is not easy, but there are uncoated parts
Rust prevention quality is not always sufficient due to uneven thickness.
There was a problem. To solve this point, the car body
The bag-shaped water draining holes formed on the
After blocking with a stopper, etc., fill the bag-shaped part with liquid rust preventive wax
The suction hose whose tip is located near the bottom of the bag.
To prevent the rust-preventing wax inside the bag from being discharged to the outside.
A method of applying rust wax has been disclosed (Japanese Patent Laid-Open No. 59-59).
177175).

[0003]

[Problems to be Solved by the Invention] However, the above coating method
First of all, use a masking tape or a plug to fill the drain hole before applying.
Work to close and work to remove masking tape etc. after application
Secondly, insert the nozzle into the bag-shaped part to prevent corrosion.
, Then remove the nozzle and insert another suction hose.
Plug into the bag or connect it to the wax filling hose.
Replace the connected nozzle with a hose for wax suction
Work to discharge the anticorrosion wax to the outside
There was a very bad fault. In addition, in the above coating method,
It is poorly applied as a guideline to regulate the range to be applied in the bag part.
You have to rely on the intuition of the cloth worker, and the inside of the bag is difficult to see.
In addition to the above, there is a large variation in the coating range.
was there. It is an object of the present invention to provide a method for coating an automobile opening / closing body, in which application to a hemmed portion is easy, workability is extremely high , and high rust prevention quality is obtained. Another object of the present invention is to rely on the intuition of a coating operator,
Painting the opening / closing body of automobiles with no variation in the range to be applied
To provide a method.

[0004]

The structure of the present invention for achieving the above object will be described with reference to FIGS. 1 and 3 corresponding to the embodiments. The present invention, the outer panel 11 and the inner panel 12 is formed by joining the respective the lower end and each of both side ends, and one or more to the inner panel 12
Opening / closing body 10 of a car with service hall 18
This is an improvement of the method of painting the opening / closing body of automobiles in which a rust preventive agent is applied to the inner surface of the. Its characteristic configuration is the injection port and the discharge port 14 of the liquid rust inhibitor opened under end of the opening and closing member 10, the opening and closing member 1
The lower end position of the service hole 18 on both sides of 0 or this lower end
The first and second overflow holes 16 and 17 of the rust preventive injected at the lower position are opened respectively, and the line connecting these overflow holes 16 and 17 is horizontal and the injection port / discharge port 14 is at the bottom. Fix the opening / closing body 10 so that
A seal 21 capable of sealing the inlet / outlet 14 near the tip
The rust preventive agent injection pipe 20 provided with
Crowded difference by a seal 21 to 4 sealing the injection port and the discharge port 14, crowded flow of rust from the injection pipe 20 to overflow a rust inhibitor from the overflow holes 16 and 17, the included flow rust inhibitors by stopping by injection pipe 20 must be unplugged
The purpose is to remove the seal 21 from the inlet / outlet port 14 and to discharge the rust preventive agent remaining inside the opening / closing body from the inlet / outlet port 14.

[0005]

Embodiments of the present invention will now be described in detail with reference to the drawings. In this example, a side door will be described as a representative of an opening / closing body of an automobile. As shown in FIGS. 1 to 3, the side door 10 is formed by joining an outer panel 11 and an inner panel 12 at their lower ends and their respective side ends. In the vicinity of the center of the hemming portion 13 of the outer panel 11 and the inner panel 12 at the lower end of the door, a rust preventive agent inlet / outlet port 14 is opened. Also, on both sides of the door, the first and second
Overflow holes 16 and 17 are opened. These overflow holes 16 and 17 are service holes 18 ...
It is provided at the lower end position of 18 or below this lower end , and at the upper end position of the range inside the door to which the anticorrosive agent should be applied.

In order to apply the rust preventive to the inside of the door 10 having such a structure, the line connecting the first overflow hole 16 and the second overflow hole 17 is horizontal and the inlet / outlet port 14 is the lowest. After fixing the opening / closing body 10 so that
Insert the rust preventive agent injection pipe 20 into the inlet / outlet port 14,
The inlet 21 serving as the outlet is sealed by a seal 21 provided near the tip of the pipe 20 (FIG. 3). Next, the rust preventive agent is poured into the door 10 through the injection pipe 20, and the rust preventive agent is overflowed through the overflow holes 16 and 17 (FIG. 4). Next, stop the flow of the rust preventive agent, and inject the pipe 2
Remove 0. The seal 21 comes off the inlet / outlet port 14,
The rust preventive agent remaining inside the door 10 is discharged from the lowest inlet / outlet port 14 (FIG. 5). As a result, the rust preventive agent is uniformly and easily applied to the inside of the door 10 in the hatched area in the drawing.

In the above example, the side door is described as the opening / closing body of the automobile, but the present invention is not limited to this, and the hemming of the back door, the tailgate of the luggage carrier, the trunk lid, and the hood covering the engine room. It can also be applied to an opening / closing body that requires anticorrosion measures in the processed part.

[0008]

As described above, according to the coating method of the present invention, the injection pipe is inserted into the lowest inlet / outlet of the opening / closing body, and the inlet / outlet is sealed by the seal before the overrun. after the <br/> Furo holes to overflow a rust inhibitor, Sea
The rust preventive agent can be applied to the inside of the opening / closing body only by removing the rust preventive agent and discharging the rust preventive agent. As a result, there is no need to swing the coating nozzle as in the past, and the nozzle and suction
There is no pulling hose in and out, workability is extremely good, and the range of rust preventive application is simple and easy at the position of the overflow hole.
It can be determined without variation, and it can be applied to every corner inside the opening / closing body, leaving no uncoated area, overflowing, extra rust inhibitor remaining inside the opening / closing body can be collected, and the coating thickness can be made uniform. It has the effect of improving various excellent rust prevention qualities.

[Brief description of drawings]

FIG. 1 is an external perspective view of a side door according to a method of an embodiment of the present invention.

FIG. 2 is a partial front view in which a main portion is broken.

FIG. 3 is an enlarged sectional view of a main part taken along the line AA of FIG.

FIG. 4 is a partial front view showing a situation in which a rust preventive agent is applied to the door.

FIG. 5 is a partial front view showing a situation in which a rust preventive applied to the door flows out.

[Explanation of symbols]

 10 Side Door (Opening / Closing Body) 11 Outer Panel 12 Inner Panel 14 Inlet / Outlet Port 16 First Overflow Hole 17 Second Overflow Hole 20 Rust Inhibitor Injection Pipe

Claims (1)

[Claims] 1. A outer panel (11) and the inner panel (12) is formed by joining the respective the lower end and each of both side ends, and one or more services to the inner panel (12)
In the coating method of the opening and closing of motor vehicle for applying a rust inhibitor to the inner surface of the hole (18) opening and closing member of an automobile is opened (10), note the liquid rust inhibitors under end of the closing body (10) Inlet and outlet (1
4) is opened and the service hoes on both sides of the opening / closing body (10) are opened.
First and second overflow holes (16, 17) of the rust preventive injected at the lower end position of the ruler (18) or a position below this lower end are opened, and the first overflow hole (16) and the second overflow hole (16) are provided. The opening / closing body (10) is fixed so that the line connecting the overflow holes (17) is horizontal and the inlet / outlet port (14) is at the lowest position, and the inlet / outlet port (14) is near the tip. Can be sealed
A seal (21) anticorrosive material injection pipe provided (20) the inlet and outlet (14) before the difference crowded by the seal (21) in <br/> SL inlet and outlet (14 ), The rust inhibitor is poured from the injection pipe (20) to overflow the rust inhibitor from the overflow holes (16, 17), and the injection pipe is stopped by stopping the rust inhibitor from flowing. the sealed by must be unplugged 20) (2
(1) is removed from the inlet / outlet port (14), and the rust preventive agent remaining inside the opening / closing body is discharged from the inlet / outlet port (14).