JPS6140476B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for painting a vehicle body such as a light van equipped with a sliding door.

Generally, a sliding door assembled into this type of vehicle body is once attached to the vehicle body during a welding process to confirm the installation, and then transferred in that state to the next painting process. When applying electro-deposition or spray painting to a car body with a sliding door during the painting process, if the car body is painted with the sliding door attached, the areas where the sliding door and the car body overlap cannot be sufficiently coated. Furthermore, since painting work is troublesome, the conventional method was to remove the sliding door from the car body, place it at the front or rear side of the car body on the painting line, and paint the car body and sliding door separately. It was getting worse.

However, in the conventional painting method described above, the sliding door and the car body are separated and painted separately, so the color and texture of the painted surfaces of the car body and the sliding door are slightly different little by little, and the quality of the painting deteriorates. However, there was a problem that production management was complicated and productivity was poor.

Therefore, in view of the above, the present invention has provided the above-mentioned sliding door with a hinge member attached to the front wall of the sliding door opening of the vehicle body at a portion corresponding to the mounting position of a stopper that absorbs the impact force when the sliding door is closed. By painting the car body while temporarily attached so that it can be rotated, the sliding door can be painted simultaneously with the car body in the same way as other hinged doors, thereby improving painting quality and productivity. It is an object of the present invention to provide a method of painting a vehicle body with a sliding door that enables the following.

Hereinafter, the present invention will be explained in detail based on the drawings. As shown in Fig. 1, the car body 1 to be transferred from the car body welding process to the painting process has a pair of left and right hinged opening/closing doors 2, 2, which can be rotated to open and close, to confirm the installation. A pair of sliding doors 3, 3 are respectively attached so that they can be slid open and closed.

When the vehicle body 1 with such doors 2, 2 and 3, 3 attached is carried into the painting process, first, at the beginning of the painting process, the sliding doors 3, 3 are once removed from the vehicle body 1. As shown in FIGS. 2 and 3, each sliding door 3 is mounted on the front wall 5 of the sliding door opening 4 of the vehicle body 1, which corresponds to the mounting position of a stopper that absorbs the impact force when the sliding door 3 is opened. 1 in the part (top and bottom two places)
It is temporarily attached via a pair of hinge members 6, 6 so as to be rotatably openable and closable.

Here, each hinge member 6 will be explained. As shown in FIG. 4, the hinge member 6 is composed of a pair of a vehicle body side attachment piece 7 and a door side attachment piece 8. The vehicle body side mounting piece 7 is formed by integrally fixing a shaft cylinder 7b extending in the vertical direction to the center part of the front side of a board 7a which is bent into a substantially U-shape in the vertical direction. A through hole 7c is drilled, and a pin 7d is provided protruding from the back surface of the lower end, and the distance between the through hole 7c and the pin 7d is set to be the same as the distance between the upper and lower mounting holes in the stopper. . Moreover, on the upper edge of the shaft cylinder 7b,
A pair of cutouts 7e, 7e are formed in the outer semicircumferential portion thereof so as to be inclined downward from the center position where the distance from the substrate 7a is maximum to the substrate 7a side. .

On the other hand, the door-side mounting piece 8 hangs downwardly through an arm portion 8b from the center portion of the front side of a substantially flat substrate 8a extending in the vertical direction.
A shaft rod 8c that can be inserted into the shaft tube 7b is integrally provided, and a through hole 8 is provided at the upper end of the substrate 8a.
A pin 8e is provided protruding from the back surface of the lower end, and the distance between the through hole 8d and the pin 8e is set to be the same as the distance between the upper and lower mounting holes in the stopper. Further, the length of the shaft rod 8c is set to be slightly larger for the hinge member 6 used at the upper stopper mounting position than for the hinge member 6 used at the lower stopper mounting position.

When the sliding door 3 is temporarily attached to a portion of the front wall 5 of the sliding door opening 4 of the vehicle body 1 corresponding to the mounting position of the stopper using such hinge members 6, 6, the steps shown in FIGS. As shown in FIG. 3, first, insert the pin 7d at the lower end of the base plate 7a of the vehicle body side mounting piece 7 into the lower side of the pair of upper and lower stopper mounting holes (not shown) provided in the front wall 5. The vehicle body side mounting piece 7 is attached to the vehicle body by fitting and locking it into the mounting hole, aligning the through hole 7c at the upper end of the board 7a with the upper mounting hole, inserting the bolt 9, and tightening it with the nut 10. Attach to. In addition, the door-side mounting piece 8 is attached to the front edge of the sliding door 3 at a portion corresponding to the stopper mounting position, similarly to the vehicle body-side mounting piece 7, at the lower end of the base plate 8a, a pin 8e is attached. It is attached by locking or, in the case of the upper end of the board 8a, by fastening with bolts 11 and nuts 12. Thereafter, the shaft rod 8c of each door-side mounting piece 8 is inserted into the shaft cylinder 7b of the corresponding vehicle-side mounting piece 7 from above, thereby supporting the sliding door 3 on the vehicle body so as to be rotatably openable and closable. It is.

Therefore, in that case, the substrates 7a and 8a of each hinge member 6 are securely fixed to the vehicle body 1 and the sliding door 3 by locking the lower ends with the pins 7d and 8e and fastening the upper ends with bolts. , the number of man-hours required for fastening bolts to the vehicle body side attachment piece 7 and the door side attachment piece 8 can be halved. Moreover, the door mounting piece 8 of the hinge member 6 located on the upper side
Since the length of the shaft rod 8c is slightly larger than that of the lower hinge member 6, the lower end of the shaft rod 8c of the upper hinge member 6 is inserted into the shaft tube 7b of the mounting piece 7 on the vehicle body side. The shaft rod 8c of the lower hinge member 6 can be inserted and inserted into the shaft cylinder 7b of the vehicle body side mounting piece 7 in a state where the shaft rods 8c, 8c are fitted and locked.
There is no need for the trouble of simultaneously fitting and inserting the slide door 3 into the shaft cylinders 7b, 7b, and therefore the temporary attachment work of the slide door 3 can be easily performed.

Although not shown in the drawings, there is an outwardly protruding portion on each surface of the vehicle body 1 and the sliding door 3 where the upper and lower ends of the substrates 7a and 8a of each hinge member 6 come into contact (around the stopper mounting hole). A plurality of dowels are formed to connect the substrates 7a,
8a is attached to the vehicle body 1 and the sliding door 3 so as to be raised above each surface.

After temporarily attaching each sliding door 3 to the vehicle body 1 in this way, with each sliding door 3 and hinged opening/closing door 2 open, the vehicle body 1 is sequentially pretreated, drained and dried, and coated with an undercoat electrodeposition. , baking drying, sealer application filling, undercoat side sill painting, drying, top coat spray painting, and baking drying.

At this time, each sliding door 3 has an arm portion 8b of the door-side mounting piece 8 of each hinge member 6 due to its own weight.
By sliding the top surface of the notch 7e and engaging with the edge of the notch 7e, the notch 7e is always kept open. Therefore, there is no overlapping part between the vehicle body 1 and the sliding door 3, and it is possible to thoroughly paint every corner of the vehicle body 1 and the sliding door 3, and the sliding door 3 will not be accidentally damaged due to vibrations during transportation. It is possible to prevent it from rotating and coming into contact with the vehicle body 1.

Therefore, the workability of painting the inner plate of the sliding door 3 is good, and the workability of filling the end portion of the inner plate with sealer, etc., is also improved.

In addition, both the upper and lower ends of the substrates 7a, 8a of each hinge member 6 are attached to the surface of the vehicle body 1 and the slide door 3 by dowels, and a gap is formed between them, so that the surface of the vehicle body 1 Also, the mounting part of the hinge member 6 on the surface of the sliding door 3 can be painted all over, eliminating the need for measures such as applying a seal around the entire circumference as a rust prevention measure.
The number of work steps in the painting process can be reduced.

After that, after the baking and drying, when the painting process reaches the latter stage, each hinged opening/closing door 2 and sliding door 3 are removed from the vehicle body 1, and each hinge member 6 is removed from each sliding door 3 and vehicle body 1, and the vehicle body is removed. 1 and each of the doors 2 and 3 are transferred to the next process, the outfitting assembly process, and each of the removed hinge members 6 is returned to the initial stage of the painting process and used for temporarily attaching the next sliding door 3. This completes the painting of the vehicle body with sliding door.

Therefore, since the vehicle body 1 and the sliding doors 3, 3 are painted simultaneously in a state where they are integrally combined, the color and texture of the painted surfaces of the vehicle body 1 and each sliding door 3 are the same. Therefore, it is possible to obtain coatings of excellent quality and to perform coatings with high productivity.

As described above, according to the present invention, the sliding door of a vehicle body with a sliding door is temporarily attached to the front wall of the sliding door opening of the vehicle body via a hinge member so as to be rotatable and openable, and the vehicle body is painted. , the vehicle body and the sliding door can be painted at the same time, and the quality and productivity of painting the vehicle body with the sliding door can be improved.

[Brief explanation of the drawing]

The drawings illustrate embodiments of the present invention, and FIG. 1 is a process diagram of the painting process, FIG. 2 is a perspective view of the vehicle body with the sliding door removed, and FIG. 3 is a cross-sectional view of the temporary support part of the sliding door. The top view and FIG. 4 are exploded perspective views of the hinge member. 1... Vehicle body, 3... Sliding door, 4... Opening, 5... Front wall, 6... Hinge member.

Claims (1)

[Scope of Claims] 1. A sliding door attached to a vehicle body is rotated via a hinge member at a portion corresponding to the mounting position of a stopper that absorbs the impact force when the sliding door is closed on the front wall of the sliding door opening of the vehicle body. A method for painting a vehicle body with a sliding door, which is characterized by painting the vehicle body while it is temporarily attached so that it can be opened and closed movably. 2. The method of painting a vehicle body with a sliding door according to claim 1, wherein the painting is electrodeposition painting. 3. The method of painting a vehicle body with a sliding door according to claim 2, wherein the sliding door is temporarily attached at the beginning of the painting process, and removed at the latter stage of the painting process after being subjected to electrodeposition coating, sealer filling, and spray painting.