JPS646939Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to an automobile lens coating apparatus suitable for application to lenses of rear combination lamps of automobiles, etc.

[Conventional technology]

A lens conventionally used in a rear combination lamp of an automobile is constructed as shown in FIG. That is, 1 is a lens, which includes a front part 1A, a wrap-around part 1B that extends diagonally rearward by being connected to one side edge of the front part 1A and goes around the side of the vehicle body, and a wrap-around part 1B that extends diagonally rearward by being connected to one side edge of the front part 1A, and also extends diagonally rearward. It integrally has a joint portion 1C extending toward the side and located inside the wrap-around portion 1B, and a plurality of fisheye lenses 2 are formed on the inner surface of the wrap-around portion 1B to constitute a reflective lens, The joint portion 1C is inserted and fixed into a fitting groove 4 provided in the peripheral edge of the front opening end of the lamp body 3, indicated by a two-dot chain line, via a gasket, an adhesive, or the like (not shown).

[Problem that the invention attempts to solve]

By the way, since the approximately V-shaped space formed between the wrap-around portion 1B and the joint portion 1C is communicated with the outside of the vehicle body, mud and the like often adhere to the inner surface of the wrap-around portion 1B. This not only degrades its function as a reflective lens, but also has the disadvantage that when viewed from the outside of the vehicle, the mud builds up and casts a shadow, impairing its appearance.

Therefore, in order to prevent the occurrence of such shadows, the inner surface of the wrap-around portion 1B is usually painted with paint of an appropriate color. This painting is generally done by covering the area other than the area to be painted with a paint mask 6 and spraying it with a spray gun 7. However, although these painting methods can handle complex shapes, spray painting not only causes a lot of paint to scatter and increases the amount of paint used, but also has a poor working environment and requires a special painting room and equipment. becomes a big deal. In addition, spray painting tends to cause uneven coating, requires skilled workers, and is poor in quality and productivity. In addition, spray painting has many disadvantages, such as air retention in the painting area, further increasing paint scattering.

Therefore, it is an object of the present invention to solve the above-mentioned problems and provide an automotive lens coating apparatus that does not require a large coating room and does not cause any paint scattering.

[Means for solving problems]

In order to achieve the above object, the present invention includes a pad that is formed to match the surface shape of the painted part of a lens and has a joint surface that is brought into close contact with the surface of the painted part, and a paint tank containing the paint in which the pad is immersed. , and a drive device that lifts the tampon from the paint tank and presses its bonding surface onto the surface of the painted portion of the lens.

[Effect]

In the present invention, a pad is pressed against the painted surface of the lens to apply the paint.

〔Example〕

Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings.

FIG. 2 is a configuration diagram showing an embodiment of the coating apparatus according to the present invention, in which a is before painting, b is during the painting operation, and c
indicates the painting condition. Further, in this embodiment, since the lens to be painted is applied to a lens of a rear combination lamp, the same constituent members and parts as in FIG. Reference numeral 10 denotes a paint tank containing a liquid paint 11. This paint tank 10 is disposed below the wrap-around portion 1B of the lens 1 at an appropriate interval, and on one side thereof is a driving device for raising and lowering the pad 12. A hydraulic or air cylinder 13 is provided. The tampon 12 corresponds to the surface shape of the painted portion of the lens 1, that is, the wrap-around portion 1.
It is placed and fixed on the lower end horizontal part 14a of the tampon holding member 14, which is formed into a shape that matches the shape of the inner surface of B and has a bonding surface 15 that comes into close contact with the surface of the painted part and is formed in a substantially square shape. and is usually immersed in the liquid paint 11.

Here, an example of a method for manufacturing the tampon 12 will be explained based on FIG.
The epoxy resin 21 containing glass fiber is thinly applied with a brush or the like to the inner surfaces of both parts 1B and 1C, and after drying this epoxy resin 21, the inner surfaces of both parts 1B and 1C are enclosed space 2
2 and the space 23 formed in the clay 20 is filled with an epoxy resin 24 and solidified, and the solidified epoxy resin 24 is taken out from the spaces 22 and 23 to form the pad 12.

The upper end horizontal portion 14b of the tampon holding member 14 protrudes to the outside of the paint tank 10, and
The piston rod 16 is connected and fixed to the outer end of the piston rod 16. On the other hand, the lens 1 is placed on the mounting table 18 with the wrap-around portion 1B facing down, and is prevented from moving upward by the holding cylinder 17.

Next, the coating operation of the coating apparatus having the above configuration will be explained.

First, as shown in FIG. 2a, the lens 1 is positioned and placed on the mounting table 18, and the presser cylinder 1 is
Press and fix with 7. On the other hand, the tampon 12 is immersed in the liquid paint 11 because the tampon holding member 14 is set and held at the lowest position. In this state, the cylinder 13 is driven to move the piston rod 16 halfway up, lift the pad 12 above the liquid paint 11, and temporarily stop the cylinder 13 at that position. This stop is tampon 1
This is to remove excess liquid paint 11 adhering to the paint 2, and the state at this time is shown in Figure b. After a certain period of time has elapsed, the cylinder 13 is operated again to further raise the pad 12, and the joint surface 15 is
As shown in FIG. 2, it is brought into pressure contact with the inner surface of the wrap-around portion 1B of the lens 1. As a result, the liquid paint 11 attached to the joint surface 15 is applied to the inner surface of the wrap-around portion 1B. After a certain period of time has passed after the joint surfaces 15 are brought into close contact, the cylinder 13 is activated and the tampon 12
is lowered, and the coating operation for the lens 1 is completed. Then, the lens 1 is removed from the mounting table 18 and then turned over. This reversal is the turning part 1B.
It is said to be effective in preventing the paint applied to the inner surface of the paint from dripping, and is maintained in an inverted state during the paint drying process.

In addition, when manufacturing the pad 12, the fourth
As shown in the figure, a relief part 31 is provided on the surface 30 that is in contact with the inner surface of the joint part 1C of the lens 1 to reduce the joint area with the joint part 1C.
It is preferable to provide a relief part 32 at the lower end of the joint surface 15 that is in contact with the paint to prevent the paint from going around to the surface side of the wrap-around part 1B.

Thus, with such a coating device, the inner surface of the wrap-around portion 1B can be coated uniformly, and compared to spray painting, there is no paint scattering, so there is no waste, and the work environment is good, and it requires a special coating room and skilled workers. No workers are required, making it possible to automate painting operations and reduce manufacturing costs.

Further, even when the joint portion 1C is substantially perpendicular to the front surface portion 1A of the lens 1 and its length l is long as shown in FIG. 5, the pad can be easily manufactured and inserted into the space 22 from below. Therefore, the entire inner surface of the wrap-around portion 1B can be uniformly coated. In contrast, in conventional spray painting, the space 22 is narrow at the back, creating air traps that make uniform painting difficult.

FIG. 6 is a block diagram showing another embodiment of the present invention. In this embodiment, a roller 40 made of silicone rubber or the like is provided between the lens 1 and the paint tank 10, and the roller 40 is used to squeeze the surface 30 of the pad 12 that is in contact with the inner surface of the joint 1C of the lens 1. The paint 11 adhering to the paint 30 is forcibly removed. In this case, the roller 40 is rotated at a constant speed (approximately 200 to 300 rpm) by a motor 41, rotatably supported by a shaft 42 on the lower circumferential surface of the roller 40, and clocked by a weight 43. The upper end of an ironing plate 44 made of phosphor bronze or the like which has been given the ability to rotate in one direction is pressed against the other.

Note that the other configurations and coating operations are the same as those in the above embodiment, so their explanations will be omitted.

Furthermore, although the above embodiments have all been described with reference to the case where the invention is applied to lenses for rear combination lamps, the present invention is of course not limited to this and can be applied to various types of automobile lenses.

[Effect of idea]

As explained above, the automotive lens coating apparatus according to the present invention immerses a pad having a bonding surface in close contact with the surface of the painted portion of the lens in the paint, and pulls up the pad using the drive device to coat the surface of the painted portion of the lens. By placing the pad in close contact with the pad, the paint adhering to the joint surface of the tampo is applied to the surface of the painted area, so unlike the conventional painting method using a spray gun, there is no need to scatter the paint, thereby reducing paint waste. Not only is it economical, it can significantly improve the working environment, and it also does not require skilled workers and can be automated, making it possible to streamline painting work. In particular, since the present invention does not require a painting room, it has great practical effects, such as enabling painting during the assembly process line.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing a conventional method of painting a rear combination lamp lens, and FIG. 2 is a configuration diagram showing an embodiment of a painting device according to the present invention.
a is before painting, b is in the middle of the painting process, c is the painting state, Figure 3 is a diagram to explain the pad manufacturing method, Figure 4 is a diagram showing the pad shape, Figure 5 is the lens. FIG. 6, which shows the shape of the painted part, is a configuration diagram showing another embodiment of the present invention. 1...Lens, 10...Paint tank, 11...Liquid paint,
12...Tampo, 13...Cylinder, 15...Joint surface.

Claims (1)

[Scope of utility model registration request] A pad having a bonding surface formed to match the surface shape of the painted portion of the lens and brought into close contact with the surface of the painted portion, a paint tank containing paint in which the pad is immersed, and the pad being pulled up from the paint tank and joined together. 1. A coating device for an automobile lens, comprising: a drive device for pressing a surface onto a surface of a painted portion of the lens.