JPH08173894A - Structure of coated boundary part of external ornamental parts for vehicle - Google Patents

Abstract

PURPOSE: To exhibit a belt-shaped clear color tone at a boundary line by a simple process without necessitating to provide a masking groove when a part of external ornamental parts for vehicle is coated and the other part is not coated by improving a technology making a peripheral boundary of a coated part conspicuous. CONSTITUTION: (A) in Figure is a masking tape for constituting a boundary part structure, and in which a weak adhesive agent layer 7c1 is provided and a colored tape 7a is adhered and a strong adhesive agent layer 7c2 is provided at its back surface. A releasing paper 7e is peeled and the tape is adhered to a main body 1a' as shown in (B), and the tape is coated with a spray gun 3 as shown in (C), and when the masking tape is peeled, the colored tape 7a is allowed to remain adhesion with the strong adhesive agent layer 7c2 as shown in (D) and a difference in level 7f is obtained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure which constitutes a boundary of a coating portion of an exterior article which is mounted on a portion which appears on the appearance of a vehicle such as a lamp, a finisher, a garnish, a mirror and the like. More specifically, the present invention relates to a boundary structure around a coating part in a vehicle exterior product that is partially coated.

[0002]

2. Description of the Related Art When a part of a member appearing in appearance is painted, it is important to finish the boundary (partition) between the painted part and the unpainted part clearly in order to enhance the commercial value. FIG. 3 is a conventional example of a vehicle lamp shown as an example of a vehicle exterior component, in which (A) is a front view of a partially painted body color, and (B) is a front view. It is sectional drawing of the lens main body before painting. (Refer to FIG. A) The lens 1 of this example has a bilaterally symmetrical shape,
The central portion of the lens body 1a is covered with a vehicle body color coating film 1b. A belt-shaped coating 1c (black coating in this example) is applied so that the boundary of the peripheral portion of the vehicle body color coating portion is highlighted. In order to make the outline (partition) of the coating 1c of the band-shaped boundary clear, the lens body 1a has (B)
As shown in the drawing, a parting groove 1d is formed, and the groove bottom is painted. FIG. 4 is a coating process diagram around the parting groove shown in FIG. 3B above, where FIG. 4A is a schematic cross-sectional view of a state where the color portion of the vehicle body is coated, and FIG. (C) is a schematic cross-sectional view of a state where the color portion has been painted, (C) is a schematic cross-sectional view of the state where the groove bottom is being painted, and (D) is a state where the vehicle body color painting and the groove bottom painting are finished. 3 is a schematic cross-sectional view of each of the drawings, in which the thickness dimension is enlarged for easy reading, and is not a realistic projection drawing. As shown in (A), when painting the vehicle body color coating portion, the parting groove 1d of the lens is covered with a mask 2, and only the vehicle body color coating portion is coated with the spray gun 3. As a result, the paint film 1b of the vehicle body color is formed while keeping the parting groove 1d clean as shown in FIG. Next, as shown in (C), while the portions other than the parting groove 1d are covered with the masks 5 and 6 to be protected, the bottom of the parting groove 1d is black-painted by the spray gun 4, as shown in the part (D). The car body color coating film 1b and the border strip coating are clearly painted, and a step 1e is formed between them, so that the appearance is good and the commercial value is high. The process chart of FIG. 4 is an example, and the order thereof can be changed, but the method is essentially the same or similar.

[0003]

According to the prior art described with reference to FIGS. 3 and 4, a. A strip-shaped coating 1c is applied to the boundary around the body-colored coating film 1b. Moreover, since the step 1e is formed, it looks very good and enhances the commercial value. But, a. Since the parting groove 1d has to be formed in the lens body 1a, the manufacturing cost of the mold for injection molding the lens body with the synthetic resin material is high, which increases the product cost. b. As shown in the process diagram of FIG. 4, since the masks 2, 5 and 6 must be repainted in accordance with a complicated process, the productivity is poor and the product cost is further increased. The present invention has been made in view of the above circumstances, and includes A. The process is simple and the productivity is good, therefore it is of high quality and low cost. The peripheral boundary of the painted part is cut off by a strip-shaped member having an arbitrary color tone different from that of the painted part, and C. In addition, a step is formed on the parting portion to provide a good-looking product, which can enhance the commercial value of the vehicle. The purpose is to contribute to the development of the exterior equipment industry.

[0004]

In order to achieve the above object (inexpensive high-quality coating), the coating boundary structure of a vehicle exterior product according to the present invention is a vehicle exterior product, and a part of the surface thereof. In the case where the coating is applied to other parts, the other parts are not applied, and the boundary around the applied part is partitioned by a band-shaped component part of a color tone different from that of the above-mentioned applied part. The colored tape member is adhered or adhered along the boundary of the.

[0005]

According to the above-mentioned means, the colored tape member adhered or adhered along the boundary of the periphery of the coated portion makes the contour of the coated portion clear and looks good,
Moreover, since the step is formed by the thickness of the tape member, the appearance is further improved. Further, since the color tone of the tape member can be arbitrarily set, the degree of freedom in design is great, and the commercial value is further enhanced by taking design consideration into consideration.

The present invention is not limited to simply sticking a tape to the contour of the painted portion, but to sticking a tape,
It was established that the practical value is established by supporting the creation of a new technique capable of quickly, easily and surely performing the masking protection for the parts other than the painted part in one step.

[0007]

EXAMPLE Next, referring to FIG. 2 and FIG. 1 one by one,
An embodiment of the present invention will be described. FIG. 2 is a plan view showing a masking tape configured to form a coating boundary structure according to the present invention and a lens, which is symmetrical to which the masking tape is applied, in a plan view. FIG. 2B is a partial cutaway view of the lens of the lamp seen from the coated surface side, and FIG. 7B is an overall view of the masking tape assembly seen from the back side of the coated surface. FIG. 2 (A)
The lens body 1a shown in FIG. 3 is a member similar to the lens body 1a shown in FIG. 3A, but does not have the parting groove 1d as shown in FIG. 3B. Also, FIG.
1b shown in FIG. 2A represents a vehicle body color coating film, while 1b 'in FIG. 2A represents an area to be coated with the vehicle body color. Further, 1c shown in FIG. 3 (A) represents a portion where the boundary strip is painted, but 1c in FIG. 2 (A)
c'represents a portion to which a member (black tape in this example) that makes the strip-shaped boundary portion stand out is attached, as will be described later. The masking tape shown in FIG. 2 (B) is
This is a member to be attached to the coated surface side of the lens body 1a ', and since it is drawn from the back side (the side opposite to the coated surface), both figures (A) and (B) are symmetrical figures. There is. Then, the portion 1c 'at which the band-shaped boundary portion is to be formed.
The colored tape (black tape in this example) 7a is arranged correspondingly to (so-called mirror-symmetrical), and an adhesive is applied as described later with reference to FIG. 7b
Is a through hole for positioning the masking tape 7 with respect to the lens body 1a '. The masking tape 7 is provided with an adhesive layer 7c in order to superimpose and temporarily fix the masking tape 7 on the unpainted portion of the lens body 1a '. However, if the entire surface has adhesiveness, the positioning operation is not easy, so the non-adhesive portion 7c 'is disposed in the central portion (a specific structure will be described later with reference to FIG. 1A). ). The pressure-sensitive adhesive layer 7c is covered with a release paper (not shown). FIG. 1 is a process diagram for constructing an embodiment of a coating boundary structure for a vehicle exterior component according to the present invention,
(A) is a cross-sectional view of the masking tape to which the colored tape according to the present invention is attached, (B) is a cross-sectional view of a state in which the masking tape is attached and is applied, and (C) is a state in which the application is completed. A sectional view, (D) is a sectional view in a state where the masking tape is removed. The masking tape 7 shown in FIG. 1A is the member shown in FIG.
In order to attach it to a ', it is drawn by cutting the adhesive layer facing the vehicle body, so that the vertical and horizontal directions are reversed as compared with FIG. 2B. As shown in FIG. 1A, the weak adhesive 7c ₁ is applied to the entire lower surface of the sheet-shaped member 7d that is the mask body to form an adhesive layer. The weak adhesive is named by comparison with a strong adhesive described later, and is synonymous with an adhesive that is easily peeled off.
By a weak adhesive layer 7c ₁ of the colored tape 7a it is adhered. In this figure, a cross section of the colored tape 7a appears, and it has a length in the direction perpendicular to the plane of the drawing. Strong adhesive layer 7c _{2 on} the lower surface of the colored tape 7a
Has been formed. In this example, the strong adhesive is synonymous with the pressure-sensitive adhesive and cannot be easily peeled off,
A durable material. 'To form the, in the example of the figure 1 (A) non-adhesive layer 7c so as to cover a weak portion of the adhesive layer 7c ₁ of the' FIG 2 (B) non-adhesive portion 7c described for a provided . For the formation of the non-adhesive layer,
Any known technique can be appropriately selected and used, and for example, thin paper may be stuck together. Further, in the area corresponding to this portion, the application of a weak adhesive may be omitted to form a non-adhesive portion.

The release paper 7e is peeled off from the masking tape 7 shown in FIG. 1 (A), and as shown in FIG. 1 (B), the release paper 7e is aligned and affixed to the lens main body 1a 'having no parting groove. Then, the colored tape 7a has a strong adhesive layer 7c ₂
It is firmly adhered to the surface of the lens body 1a '.
The mask body 7d is ( 'except provided area, the surrounding portion is not the lens main body 1a of the parting groove non-adhesive layer 7c)' weak by the adhesive layer 7c ₁ is adhered to. In this state, if the spray gun 3 is used to paint the body color,
The colored tape 7a is covered with the mask main body 7d, so that the paint does not adhere thereto. When the vehicle body color coating film 1b is formed as shown in FIG. 1C, the masking tape 7 is peeled off. In this case, colored tape 7a is leaving because it is stuck with a strong adhesive layer 7c ₂ to the lens body 1a 'surface,
As shown in the figure, the step 7f is formed, which is good-looking.

[0009]

When the present invention is applied, the colored tape member adhered or adhered along the boundary of the periphery of the painted portion makes the contour of the painted portion clear and has a good appearance. Since the step is formed depending on the thickness, the appearance is further improved. Further, since the color tone of the tape member can be arbitrarily set, the degree of freedom in design is great, and the commercial value is further enhanced by taking design consideration into consideration.

The present invention is not limited to simply adhering a tape to the contour of the painted portion, but to affixing the tape,
It was established that the practical value is established by supporting the creation of a new technique capable of quickly, easily and surely performing the masking protection for the parts other than the painted part in one step.

[Brief description of drawings]

FIG. 1 is a process diagram for constructing an embodiment of a coating boundary portion structure for a vehicle exterior component according to the present invention, in which (A) is a cross section of a masking tape to which a colored tape according to the present invention is attached. FIG. 6B is a cross-sectional view showing a state where a masking tape is attached and painting, FIG. 9C is a cross-sectional view showing a state where painting is finished, and FIG. 9D is a cross-sectional view showing a state where the masking tape is removed. .

FIG. 2 is a plan view in which a masking tape configured to form a coating boundary structure according to the present invention and a lens to which the masking tape is applied are symmetrically drawn, and FIG. FIG. 3B is a partial cutaway view of the lens of the lighting fixture viewed from the coating surface side, and FIG. 7B is an overall view of a single piece of the masking tape assembly viewed from the back surface of the coating surface.

FIG. 3 is a front view of a conventional example of a vehicle lighting device shown as an example of a vehicle exterior product, in which (A) is a partial view of a vehicle body color-painted, and (B). FIG. 3 is a cross-sectional view of the lens body before painting.

FIG. 4 is a coating process diagram around the parting groove shown in FIG. 3B above, where FIG. 4A is a schematic cross-sectional view of a state in which a body color portion is coated, and FIG. (C) is a schematic cross-sectional view showing a state where the body color portion has been painted, (C) is a schematic cross-sectional view showing a state where the groove bottom is painted, and (D) shows the body color painting and the groove bottom painting completed. It is a schematic cross-sectional view of the state, and in each of the drawings, the thickness dimension is enlarged to facilitate the reading, and is not a realistic projection.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Lens, 1a ... Conventional lens body, 1a '... Lens body for applying the present invention, 1b ... Body color coating film, 1b' ... Area to be subjected to body color coating, 1c ... Border strip coating, 1c '... a place where a strip-shaped component is to be arranged, 1
d ... Grooves for parting, 2 ... Conventional mask, 3 ... Spray gun for painting vehicle body color, 4 ... Spray gun for painting black band portion, 5, 6 ... Conventional mask, 7 ... Implementation of the present invention masking tape in the example, 7a ... colored tape, 7b ... hole for positioning, 7c ... adhesive layer, 7c ₁ ... weak adhesive layer, 7c ₂ ... strong adhesive layer, 7c '... non pressure-sensitive adhesive layer, 7d
... mask body, 7e ... release paper, 7f ... step.

Claims (1)

[Claims] 1. An exterior part for vehicles, wherein a part of the surface of the exterior part is painted and the other part is not painted, and the boundary around the painted part has a different color tone from the above-mentioned paint. Which is partitioned by a strip-shaped component part, the colored boundary tape member is adhered or adhered along the boundary of the periphery of the painted part. Construction.