JPH11300247A - Masking material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily fit and fix a masking material around a member without using a pressure-sensitive tape, etc., by dividing the masking material consisting of a molded article of a plastic sheet, used for surrounding the circumference of the member and protecting the peripheral face of the member into two parts and by providing mutually hooking means on both end edges of each of split parts. SOLUTION: This masking material 1A for covering and protecting the circumference of a member used for an automotive window frame, etc., is divided into two masking materials 2A and 3A. The first masking material 2A consists of a main body part 21A with a U-shaped crosssection and hook-like flanges 22A formed on both end edges of this. In addition, the second masking material 3A also consists of a main body part 31A with a U-shaped crosssection and plate-like flanges 32A formed on both end edges of this. In addition, on the main faces of both main bodies 21A and 31A, reinforcing ribs 23A and 33A are respectively formed vertically and horizontally. In addition, after the circumference of the member is respectively surrounded with each of the main body part 21A and 31A, the masking material 1A is fitted and fixed by hooking the flanges 22A and 32A each other.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a masking material for covering and protecting a peripheral surface of a member such as an automobile window frame.

[0002]

2. Description of the Related Art Conventionally, when a member such as a window frame of an automobile is painted in a different color, FIG.
And a masking material 1P as shown in FIG. The masking material 1P includes a main body 5P having a U-shaped cross section.
And back portions 6P, 6P connected to both ends of the main body portion 5P via the hinge portions 51P, 51P. After the main body portion 5P is fitted to the member 4 to be masked,
The rear portions 6P, 6P are bent toward the member 4 via the hinge portions 51P, 51P to surround the periphery of the member 4, and finally, the overlapping portion of the rear portions 6P, 6P is adhered to the adhesive tape 7P.
Masking is performed by fixing with.

[0003]

However, as described above, the work of bending the back portions 6P, 6P of the masking material 1P one by one and fixing the overlapping portion between the back portions 6P, 6P with the adhesive tape 7P is complicated. In particular, when masking the members 4 on a continuous mass production line such as an automobile manufacturing plant, a smooth operation is significantly hindered. Further, the masking material 1P can be used repeatedly, but the adhesive tape 7P is disposable and wastes resources, and disposal of scraps of the used adhesive tape 7P also poses a problem.

Accordingly, an object of the present invention is to provide a masking material that can be easily attached and fixed around a member to be masked without using an adhesive tape or the like.

[0005]

In order to solve the above-mentioned problems, the present invention comprises a molded plastic sheet,
A masking material (1...) That surrounds the periphery of the member (4) and protects the peripheral surface of the member (4), and is divided into two parts. It is intended to provide a masking material (1...) Characterized by being provided with mutual engagement means. The interengaging means may be any as long as the divided portions (2, 3,...) Can engage with each other. The hook-shaped flange (22A) and the plate-shaped flange (32A), ridges (24B) and ridges (34B), holes (25C) and protrusions (35C), hooks (26D) and hooks (36D), and the like.

In the masking material (1), each divided portion (2, 3,...) Is fitted to a member (4) to be masked to surround the periphery of the member (4). By engaging the engaging means provided at the edges of the divided portions (2, 3,...) With each other, the masking material (1. )
To protect the peripheral surface of the member (4). After painting, each divided part (2 ..., 3)
The masking members (1...) Can be easily removed from the member (4) by disengaging the engaging means that are engaged with each other at the edges of. Does not occur.

Reinforcing ribs (23A, 33A) may be formed on an arbitrary main surface of each of the divided portions (2, 3,...). By providing the reinforcing ribs in this manner, the rigidity of each of the divided portions (2, 3,...) Can be increased, and the shape of the masking material (1,...) Is maintained. for that reason,
The masking material (1 ...) is hardly deformed even if it is held by hand,
Therefore, it is easy to fit to the member (4), and each divided part (2
.., 3) easy to engage with each other and good workability.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings. FIG. 1 shows a masking material 1A according to a first embodiment of the present invention. The masking material 1A is divided into a first masking material 2A and a second masking material 3A, and the first masking material 2A has a U-shaped main body portion 21A and both ends of the main body portion 21A. The second masking material 3A comprises a main body portion 31A having a U-shaped cross section and the main body portion 31A.
A comprises plate-like flanges 32A, 32A provided at both end edges. The main body 21A of the first masking material 2A
Main part 31 of the main surface and the second masking material 3A
Reinforcing ribs 23A and 33A are formed on the main surface of A in the vertical and horizontal directions, respectively.

The masking material 1A is made of thermoplastic resin such as polystyrene, polyethylene, polypropylene, ethylene-propylene copolymer, polyvinyl chloride, vinylidene chloride copolymer, ethylene-vinyl acetate copolymer and thermoplastic polyester. Sheet or polyamide, polyacetal, polycarbonate, polyethylene terephthalate, polybutylene terephthalate, polyphenylene ether, polyphenylene oxide, polysulfone, polyether sulfone, polyphenylene sulfide, polyarylate, polyether ether ketone,
Crystalline polyester, polyamide imide, polyimide,
A sheet of engineering plastic such as polyetherimide, polyaminobismaleimide, methylpentene copolymer, cellulose acetate, or a sheet of a mixture of two or more of the above plastics, or a laminate of two or more of the above plastic sheets; It is formed by subjecting it to vacuum forming, press forming, and the like.

The above-mentioned plastic sheet includes calcium carbonate, magnesium carbonate, barium sulfate, calcium sulfate, calcium sulfite, calcium phosphate, calcium hydroxide, magnesium hydroxide, aluminum hydroxide, magnesium oxide, titanium oxide, iron oxide, and zinc oxide. , Alumina, silica, diatomaceous earth, dolomite, gypsum, talc, clay, asbestos, mica, glass fiber, calcium silicate, benite, white carbon, carbon black, iron powder, aluminum powder, stone powder, blast furnace slag, fly ash, Inorganic fillers such as cement and zirconia powder; natural fibers such as cotton, bamboo, hemp, and wool; and organic synthetic fibers such as polyamide fibers, polyester fibers, acrylic fibers, viscose fibers, acetate fibers, vinyl chloride fibers, and vinylidene chloride fibers. , Ass Strike fiber, glass fiber, carbon fiber,
Inorganic fibers such as ceramic fibers, metal fibers, and whiskers;
Reinforcing materials such as organic fillers such as linter, linen, sisal, wood flour, coco flour, walnut flour, starch, flour, etc. may be added to improve shape retention, dimensional stability, compression and tensile strength, etc. And flame retardants, flame retardants, insect repellents, preservatives, waxes, lubricants, antioxidants, antioxidants, ultraviolet absorbers, antistatic agents, crystallization accelerators, chemical foaming agents, capsule foaming agents , A foaming agent such as a dye, a coloring agent such as a pigment, D
One or more plasticizers such as OP and DBP may be mixed.

In order to attach the masking material 1A to the member 4 to be masked, as shown in FIG. 2, the main body portion 21A of the first masking material 2A and the main body portion 31A of the second masking material 3A are respectively provided. It is fitted to the member 4 to surround the periphery of the member 4, and the hook-like flanges 22A, 22A of the first masking material 2A are connected to the plate-like flanges 32A, 32A of the second masking material 3A. Engage.
In this way, the masking material 1A can be easily attached and fixed to the member 4 without using an adhesive tape or the like, and the peripheral surface of the member 4 can be protected.

The main surface of the main body portion 21A of the first masking material 2A and the main surface of the main body portion 31A of the second masking material 3A are respectively provided with checkerboard reinforcing ribs 23.
A and 33A are formed, so that the first masking material 2A and the second masking material 3A have high rigidity,
The shape is retained. Therefore, the first masking material 2
A and the second masking material 3A are not easily deformed even if they are held by hand, so that they can be easily fitted to the member 4, and the first masking material 2A (the hook-like flanges 22A, 22A) and the second masking material 3A 3A (plate-like flanges 32A, 32A) are easily engaged with each other, and workability is good.

After the masking material 1A is attached to the member 4, a portion other than the member 4 is coated with a color different from the color already applied to the member 4. After painting, the hook-shaped flanges 22A, 22A of the first masking material 2A and the plate-like flanges 32A, 32A of the second masking material 3A are disengaged, and the first masking material 2A and the second The second masking material 3A is removed. In such a masking material 1A, removal from the member 4 is easy, and no scrap is generated because no adhesive tape or the like is used.

Next, FIG. 3 shows a masking material 1B according to a second embodiment of the present invention. The masking material 1B has substantially the same configuration as that of the masking material 1A according to the first embodiment, except that both ends of the main body 21B of the first masking material 2B have convex ridges 24B having a U-shaped cross section. 24B are provided, and both ends of the main body portion 31B of the second masking material 3B have a U-shaped cross section that allows the protrusions 24B, 24B of the first masking material 2B to be engaged inside. Ridge 34B,
34B is provided.

In order to attach the masking material 1B to the member 4 to be masked, as shown in FIG. 4, the body portion 21B of the first masking material 2B and the body portion 31B of the second masking material 3B are respectively attached. The member 4 is fitted to surround the periphery of the member 4, and the ridges 34B, 34B of the second masking material 3B are engaged with the ridges 24B, 24B of the first masking material 2B. I just need.

FIG. 5 shows a masking material 1C according to a third embodiment of the present invention. The masking material 1C is formed of the first material.
The first masking material 2C has substantially the same configuration as the masking material 1A, but has flanges 22C, 22C having a plurality of holes 25C at both end edges of the main body 21C in the first masking material 2C.
A head 351C that can be engaged with the holes 25C of the flanges 22C and 22C of the first masking material 2C is provided at both end edges of the main body 31C of the second masking material 3C. Flanges 32C, 32C having a plurality of enlarged protrusions 35C are provided.

In order to attach the masking material 1C to the member 4 to be masked, as shown in FIG. 6, the main body portion 21C of the first masking material 2C and the main body portion 31C of the second masking material 3C are respectively attached. The protrusions 35C of the flanges 32C, 32C of the second masking material 3C are fitted to the member 4 to surround the periphery of the member 4, and the projections 35C of the flanges 22C, 22C of the first masking material 2C. What is necessary is just to insert and engage in the hole 25C.

FIG. 7 shows a masking material 1D according to a fourth embodiment of the present invention. The masking material 1D is made of the first material
Has the same configuration as that of the masking material 1A according to the first embodiment, but has hooks 26D, 26D that are folded outward at both end edges of the main body 21D of the first masking material 2D. Hooks 36D, 36D that are folded inward are provided at both end edges of the main body 31D of the masking material 3D.

In order to attach the masking material 1D to the member 4 to be masked, as shown in FIG. 8, the main body 21D of the first masking material 2D and the main body 31D of the second masking material 3D are respectively mounted. The first masking material 2 is fitted around the member 4 to surround the periphery of the member 4.
The hooks 26D, 26D of D and the hooks 36D, 36D of the second masking material 3D may be engaged with each other.

Although the present invention has been described with reference to the drawings, the present invention is not limited to the embodiments shown in the drawings, and various modifications can be made without departing from the scope of the present invention. For example, the reinforcing ribs formed on the main surface of each masking material need not be provided, and as shown in FIG. 9, the masking material 1E is provided with irregularities along the irregular surface of the member 4 to be masked. You may.

[0021]

The masking material of the present invention can be easily attached and fixed around a member to be masked without using an adhesive tape or the like, and can be easily removed.

[Brief description of the drawings]

FIG. 1 is a perspective view of a masking material according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a state where the masking material in FIG. 1 is attached and fixed to a masked portion.

FIG. 3 is a perspective view of a masking material according to a second embodiment of the present invention.

FIG. 4 is a cross-sectional view showing a state in which the masking material in FIG. 3 is attached and fixed to a masked portion.

FIG. 5 is a perspective view of a masking material according to a third embodiment of the present invention.

6 is a cross-sectional view showing a state where the masking material in FIG. 5 is attached and fixed to a masked portion.

FIG. 7 is a perspective view of a masking material according to a fourth embodiment of the present invention.

8 is a cross-sectional view showing a state in which the masking material in FIG. 7 is attached and fixed to a masked portion.

FIG. 9 is a cross-sectional view showing a state in which a masking material according to another embodiment of the present invention is attached and fixed to a masked portion.

FIG. 10 is a perspective view of a conventional masking material.

FIG. 11 is a perspective view showing a state in which a conventional masking material is attached and fixed to a masked portion.

[Explanation of symbols]

 1A, 1B, 1C, 1D, 1E, 1P: Masking material 2A, 2B, 2C, 2D: First masking material 23A: Reinforcement rib 3A, 3B, 3C, 3D: Second masking material 33A: Reinforcement rib 4 ... Element

Claims (2)

[Claims] 1. A molded product of a plastic sheet,
What is claimed is: 1. A masking material which surrounds a periphery of a member and protects a peripheral surface of the member, wherein the two parts are divided, and both ends of each divided portion are provided with mutual engagement means. 2. The masking material according to claim 1, wherein a reinforcing rib is formed on an arbitrary main surface of each of the divided portions.