JP7202635B2 - Masking sheet fixture for painting - Google Patents

Description

The present invention is for fixing a masking sheet for painting to the vehicle body surface, which covers the non-coated area of the vehicle body surface so that the paint does not adhere to the non-coated area other than the coated area when the body surface of an automobile is painted. Regarding fixtures.

Conventionally, when repairing an automobile, there are cases where only a part of the surface of the vehicle body is painted. The area should be kept free of paint during painting operations.

By the way, the masking sheet for painting as described above is generally fixed to the vehicle body surface using an adhesive tape, but there is a problem that the work is complicated.

In order to avoid this, for example, in Patent Document 1, for the purpose of simplifying the painting work, a masking sheet for painting is fixed to the surface of the vehicle body using a fixture that can be attached and detached to the surface of the vehicle body. The fixture includes an elongated flexible magnet body extending in a belt shape, and one side of the magnet body has a cross-sectional shape whose thickness gradually decreases toward the edge. A painting masking sheet is connected to the other side of the . Then, the fixture is attached to the shape of the vehicle body surface so that one side edge of the magnet coincides with the boundary portion between the coating area and the non-coating area on the vehicle body surface, and the coating masking sheet covers the non-coating area. After fixing while deforming along the line, painting work is performed.

Japanese Utility Model Laid-Open No. 60-189359

By the way, when painting is performed using a fixture such as that of Patent Document 1, when the fixture is removed from the vehicle surface after painting, the paint is deposited on one side of the fixture at the boundary between the coated area and the non-coated area on the vehicle surface. It will harden along the line, and a staircase-like step will occur in that part. In particular, since the thickness of the coating film formed after coating is large in the case of base coating or the like, a significant level difference is generated. Therefore, if the top coat is applied directly on top of the paint, the coating will be defective due to the stepped portion, so it is necessary to take time to eliminate the unevenness of the paint using sandpaper before the top coat is applied. , there arises a problem that the painting work becomes complicated.

The present invention has been made in view of the above points, and an object of the present invention is to fix a masking sheet for painting so that the working time after painting can be shortened and the painting work can be performed efficiently. It is about providing tools.

In order to achieve the above object, the present invention is designed to form a space with an acute cross-section between the fixture and the vehicle body surface when the masking sheet for painting is fixed to the vehicle body surface using the fixture. It is characterized by

Specifically, it has a long shape with a flat bottom surface extending in a belt shape, and is detachably magnetized to the vehicle body surface made of a magnetic material, and the masking sheet for painting is attached to the vehicle body surface and the bottom surface. In the painting masking sheet fixing tool provided with a flexible elongated body that can be fixed by being sandwiched between them, the following solving means were devised.

That is, in the first invention, in the state where the masking sheet for painting is fixed to the vehicle body surface, the one side surface of the elongated body has a side edge portion opposite to the other side edge portion of the bottom surface from one side edge portion of the bottom surface. A first inclined surface portion extending away from the vehicle body surface as it advances to the side is provided from one longitudinal end to the other longitudinal end of the elongated body.

In a second invention according to the first invention, a curved surface portion having a semicircular cross-section whose middle portion protrudes outward extends from one longitudinal end of the elongated body to the other end on one side surface of the elongated body. It is characterized in that the first inclined surface portion is formed by a continuous portion of the curved surface portion and the bottom surface.

In a third invention, in the first or second invention, the flexible elongated body is made of elastic rubber material or resin material, and has at least one hollow portion extending in the longitudinal direction. and a magnet is embedded in the hollow portion.

In a fourth invention, in the first or second invention, the elongated body is made of elastic rubber material or resin material, and a large number of magnetized granular bodies are contained in the elongated body. It is characterized by being scattered all over the shaku body.

In a fifth aspect of the invention, in any one of the first to fourth aspects, the other side surface of the elongated body is provided from the other side edge of the bottom surface so that the cross section between the bottom surface and the bottom surface forms an acute angle. A second slanted surface portion extending slantingly on one side surface side of the elongated body is provided from one longitudinal end to the other longitudinal end of the elongated body.

According to a sixth invention, in the fifth invention, the second inclined surface portion has a curved cross section so as to protrude outward.

In a seventh invention, in the fifth or sixth invention, the extending end of the second inclined surface portion is continuous with the edge portion of the curved surface portion on the opposite side of the continuous portion with the bottom surface. Characterized by

In the first invention, the masking sheet for painting is elongated so that the first inclined surface portion of the elongated body corresponds to the boundary portion between the painting area and the non-painting area on the vehicle body surface, and the masking sheet for painting covers the non-painting area. After fixing the body while deforming it so as to follow the shape of the vehicle body surface, when the coating area is painted, the paint is applied between the vehicle body surface and the first inclined surface portion at the boundary between the coating area and the non-coating area. As the paint enters between the vehicle body surface and the first inclined surface portion, the paint solidifies to form a coating film whose thickness gradually decreases toward the end portion. Therefore, the time required for work using sandpaper after painting can be shortened, or the work using sandpaper can be eliminated, and the painting work can be performed efficiently.

In the second invention, the tactile feeling when the worker grips it is improved, so that the fixture can be easily operated.

In the third invention, the long body can be easily attached and detached from the vehicle body surface by the magnetic force of the magnet. In addition, since the portion to be gripped by the operator is made of elastic rubber material or resin material, it is possible to further improve the tactile sensation when the operator grips it. In addition, since the flexible region between the hollow parts in which the magnets are embedded makes it easier for the elongated body to bend as a whole, the body can be painted along even if the shape of the vehicle body surface is complicated. A masking sheet can be fixed.

In the fourth invention, the long body can be easily attached and detached from the vehicle body surface by the magnetic force of the magnet. In addition, since the regions between the grains in the long body are made of elastic rubber material or resin material, the shape of the long body can be deformed into a desired shape more than in the third invention. Even if the shape of the vehicle body surface is complicated, the painting masking sheet can be fixed along it.

In the fifth invention, the front end of the second inclined surface portion of the elongate body is aligned with the boundary portion between the coating area and the non-coating area on the vehicle body surface, and the masking sheet for coating covers the non-coating area. After fixing the elongated body while deforming it along the shape of the vehicle body surface, when the paint is sprayed on the painted area so as to straddle the painted area and the non-painted area using the painting means, the elongated body is Also, the paint blown out from the coating means moves smoothly along the second inclined surface portion in the direction away from the coating area, and the paint blown out from the coating means is blocked by the elongated body and bounces back to the coating area side. becomes less. Therefore, it is possible to prevent the film thickness of the paint adhering to the painted area from becoming thick only at the boundary between the painted area and the non-painted area. In addition, since the coating can be performed in a manner different from the case where coating is performed on the side of the first inclined surface portion of the elongated body, there are more options for coating methods, and the fixture can be made easy to use.

In the sixth invention, the thickness of the other side of the long body is increased compared to the case where the second inclined surface portion has a planar shape. Therefore, it is possible to make the fixture highly rigid.

In the seventh invention, since the cross section of the elongated body has a substantially drop shape, it is possible to make the fixture highly designed and attractive.

1 is a perspective view of a masking sheet fixture for painting according to Embodiment 1 of the present invention. FIG. 1 is a perspective view showing a state in which a vehicle body surface is being painted using the painting masking sheet fixture according to Embodiment 1 of the present invention. FIG. FIG. 3 is a cross-sectional view taken along line III-III of FIG. 2; FIG. 4 is a cross-sectional view showing a state in which the painting masking sheet fixture according to the first embodiment of the present invention is used in a manner different from that shown in FIGS. 2 and 3 to paint a vehicle body surface. FIG. 3 is a view corresponding to FIG. 3 according to Embodiment 2 of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail based on the drawings. It should be noted that the following description of preferred embodiments is merely exemplary in nature.

<<Embodiment 1 of the invention>>
FIG. 1 shows a painting masking sheet fixture 1 according to Embodiment 1 of the present invention. For example, as shown in FIGS. 2 and 3, the paint masking sheet fixture 1 is used to cover the unpainted area R2 other than the paint area R1 of the vehicle body surface 10 with newspaper 4 (paint masking sheet) when repairing an automobile. The newspaper 4 is fixed to the vehicle body surface 10 so as to be covered with a sheet) to prevent the paint from adhering to the non-painting area R2 during the painting work. 2.

The elongated body 2 has a body portion 20 made of an elastic resin material, and a flat bottom surface 2e extending in the longitudinal direction of the elongated body 2 in a band shape is formed at the lower portion of the body portion 20 . .

A plurality of hollow portions 2d are formed inside the body portion 20 at predetermined intervals in the longitudinal direction of the elongated body 2, and magnets 3 are embedded in the respective hollow portions 2d.

That is, the elongated body 2 is detachably magnetized to the vehicle body surface 10 made of a magnetic material, and the newspaper 4 can be sandwiched and fixed between the vehicle body surface 10 and the bottom surface 2e.

On one side surface of the body portion 20, a curved surface portion 2a having a semicircular cross-section whose middle portion protrudes outward is provided from one end to the other end in the longitudinal direction of the elongated body 2, and the lower edge of the curved surface portion 2a. The part is continuous with one side edge of the bottom surface 2e.

That is, on one side of the elongated body 2, in a state where the newspaper 4 is fixed to the vehicle body surface 10, the paper gradually increases from the vehicle body surface 10 as it proceeds from one side edge of the bottom surface 2e to the opposite side of the other side edge of the bottom surface 2e. A first inclined surface portion 2b extending away from the long body 2 is provided from one end to the other in the longitudinal direction of the elongated body 2, and the first inclined surface portion 2b is formed by a continuous portion with the bottom surface 2e of the curved surface portion 2a. .

The surface of the curved surface portion 2a is an uneven surface with small undulations over the entire area, so that when the newspaper 4 comes into contact with it, the contact area with the newspaper 4 is reduced.

On the other hand, on the other side surface of the body portion 20, there is a second inclined surface portion 2c that extends obliquely from the other side edge portion of the bottom surface 2e toward one side surface of the body portion 20 so that the cross section between the bottom surface 2e and the bottom surface 2e forms an acute angle. It is provided from one longitudinal end of the elongated body 2 to the other longitudinal end.

The second inclined surface portion 2c has a gently curved cross-section projecting outward, and the extended end thereof continues to the edge portion of the curved surface portion 2a on the opposite side of the continuous portion with the bottom surface 2e. ing.

That is, the cross section of the elongated body 2 has a substantially drop shape.

The surface of the second inclined surface portion 2c is an uneven surface with small undulations over the entire area, so that when the newspaper 4 comes into contact with it, the contact area with the newspaper 4 is reduced.

Next, the process of applying paint to the vehicle body surface 10 using the paint masking sheet fixture 1 will be described in detail.

First, as shown in FIG. 2 , the operator should place the newspaper 4 so that one side edge of the bottom surface 2 e of the long body 2 corresponds to the coating boundary line 10 a on the vehicle body surface 10 , and the newspaper 4 is on the coating region R 1 side. After the newspaper 4 is sandwiched between the vehicle body surface 10 and the bottom surface 2e so as to be positioned at , the newspaper 4 is folded back so as to cover the long body 2 so that the newspaper 4 covers the non-coating area R2. At this time, since the elongated body 2 has flexibility, the newspaper 4 can be fixed to the vehicle body surface 10 while deforming the elongated body 2 along the shape of the vehicle body surface 10 .

Next, as shown in FIG. 3, the operator holds the paint sprayer 5 and sprays the paint onto the paint area R1. Then, the coating film 6 is formed on the coating region R1 on the vehicle body surface 10. As shown in FIG. For the sake of convenience, the dimension of the thickness of the coating film 6 in FIG. 3 is enlarged. At this time, since the paint enters between the vehicle body surface 10 and the first inclined surface portion 2b at the boundary between the coating region R1 and the non-coating region R2, the paint entering between the vehicle body surface 10 and the first inclined surface portion 2b is solidified to form a coating film 6 having a sharp portion 6a whose thickness gradually decreases toward the edge.

Thereafter, after removing the fixture 1 and the newspaper 4 from the vehicle body surface 10, finishing work is performed using sandpaper. At this time, since the edge of the coating film 6 is smoothed by the sharpened part 6a, the time required for finishing work with sandpaper is reduced or the need for finishing work with sandpaper is eliminated. In this way, the time required for working with sandpaper after painting can be shortened, or the work with sandpaper can be eliminated, and the painting work can be performed efficiently. In addition, when the fixture 1 and the newspaper 4 are removed from the vehicle body surface 10, since the surfaces of the curved surface portion 2a and the second inclined surface portion 2c are uneven, the newspaper 4 may be removed, for example, by painting using clear paint. To make the newspaper 4 easy to peel off from the fixture 1 by reducing the contact area between the newspaper 4 and the fixture 1 even in the case where the paint penetrates to the fixture 1 through a hole and solidifies. can be done.

Next, a case where the painting masking sheet fixture 1 is used to paint the vehicle body surface 10 in a manner different from that shown in FIGS. 2 and 3 will be described in detail.

First, as shown in FIG. 4, the operator should make the other side edge of the bottom surface 2e of the elongated body 2 (the tip of the second inclined surface portion 2c) coincide with the coating boundary line 10a on the vehicle body surface 10, and After the newspaper 4 is sandwiched between the vehicle body surface 10 and the bottom surface 2e so that the newspaper 4 is located on the coating region R1 side, the newspaper 4 is folded back so as to cover the elongated body 4, and the newspaper 4 becomes the non-coating region R2. be covered. At this time, since the elongated body 2 has flexibility, the newspaper 4 can be fixed while deforming the elongated body 2 along the shape of the vehicle body surface 10 .

Next, the operator holds the paint sprayer 5 and sprays the paint onto the paint area R1. Then, the coating film 6 is formed on the coating region R1 on the vehicle body surface 10. As shown in FIG. At this time, when the coating spray 5 is sprayed onto the coating region R1 so as to straddle the coating region R1 and the non-coating region R2, even if the elongated body 2 is present, the coating spray 5 sprays the coating onto the second inclined surface portion 2c. It smoothly moves away from the painting area R1 along the X1 direction, and the paint sprayed from the painting spray 5 is less likely to be blocked by the elongated body 2 and rebound to the painting area R1 side. Therefore, it is possible to prevent the thickness of the paint adhering to the coating region R1 from becoming thick only at the boundary between the coating region R1 and the non-coating region R2.

As described above, the masking sheet fixture 1 for painting can be used in a manner different from the case of painting on the side of the first inclined surface portion 2b of the elongated body 2, so that the choice of painting methods is increased and the usability is improved.

As described above, according to Embodiment 1 of the present invention, the time for working with sandpaper after painting is shortened, or the work with sandpaper can be eliminated, and the painting work can be reduced. can be done efficiently.

In addition, since one side surface of the elongated body 2 has a semicircular cross-section, the fixture 1 can be easily operated with a good tactile feel when a worker grips it.

Further, since the fixture 1 has the magnets 3 embedded in the hollow portions 2d of the body portion 20, the elongated body 2 can be easily attached to and detached from the vehicle body surface 10 by the magnetic force of the magnets 3.

In addition, since the portion to be gripped by the operator is made of a resin material having elasticity, it is possible to further improve the tactile sensation when the operator grips it. In addition, since the flexible regions between the hollow portions 2d in which the magnets 3 are embedded make it easier for the elongated body 2 to bend, even if the shape of the vehicle body surface 10 is complicated, the newspaper can be applied along it. 4 can be fixed.

In addition, since the second inclined surface portion 2c has a curved cross-section so as to protrude outward, the thickness of the other side of the long body 2 is reduced compared to the case where the second inclined surface portion 2c has a planar shape. will increase. Therefore, the fixture 1 can have high rigidity.

Further, in the fixture 1 of Embodiment 1 of the present invention, the curved surface portion 2a, the second inclined surface portion 2c, and the bottom surface 2e form a cross section of the elongated body 2 in a substantially drop-like shape, so that it is highly designed and has a good appearance. It can be used as tool 1.

<<Invention Embodiment 2>>
FIG. 5 shows a painting masking sheet fixture 1 according to Embodiment 2 of the present invention. In this second embodiment, a part of the structure of the elongated body 2 is different from that of the first embodiment, and the rest is the same as that of the first embodiment. Therefore, only the parts different from the first embodiment will be described below.

The elongated body 2 of Embodiment 2 is formed of an elastic rubber body, and a large number of magnetized granular bodies 7 are scattered throughout the elongated body 2 . For the sake of convenience, each grain 7 in FIG. 4 is enlarged.

In addition, the first inclined surface portion 2b of the second embodiment extends with a straight inclination so as to gradually separate from the vehicle body surface 10 as it proceeds from one side edge of the bottom surface 2e to the opposite side of the other side edge of the bottom surface 2e. there is

Further, the second inclined surface portion 2c of the second embodiment extends straight from the other side edge of the bottom surface 2e toward one side surface of the long body 2 so that the cross section between the bottom surface 2e and the bottom surface 2e forms an acute angle. there is

The procedure for applying paint to the vehicle body surface 10 using the paint masking sheet fixture 1 is the same as in the first embodiment, so detailed description will be omitted.

As described above, according to the second embodiment of the present invention, the long body 2 can be easily attached to and detached from the vehicle body surface 10 by the magnetic force of the granular bodies 7 scattered inside the long body 2 .

In addition, since the regions between the grains 7 in the elongated body 2 are made of elastic rubber material, the shape of the elongated body 2 can be made more desired than in the structure of the first embodiment. It becomes easy to deform, and even if the shape of the vehicle body surface 10 is complicated, the newspaper 4 can be fixed along it.

In Embodiments 1 and 2 of the present invention, the upper half of one side surface of the long body 2 has an arcuate cross-section, but the shape is not limited to this and may be other shapes.

Further, in Embodiments 1 and 2 of the present invention, the second inclined surface portion 2c is formed on the other side surface of the elongated body 2, but it is not essential to form the second inclined surface portion 2c.

Moreover, although the newspaper 4 is used as the coating masking sheet in the first and second embodiments of the present invention, the masking sheet is not limited to this, and other types of sheets may be used.

Further, in Embodiment 1 of the present invention, six magnets 3 are embedded inside the elongated body 2 , but other numbers of magnets 3 may be embedded inside the elongated body 2 .

The fixture 1 of Embodiments 1 and 2 of the present invention can be used for all types of coating such as top coating, base coating, or clear coating.

Further, the fixture 1 according to Embodiments 1 and 2 of the present invention can be used for fixing a masking sheet for painting to the vehicle body surface 10 during painting work on all parts of the vehicle body surface 10 in addition to the above-described usage examples. can be used for

The present invention is for fixing a masking sheet for painting to the vehicle body surface, which covers the non-coated area of the vehicle body surface so that the paint does not adhere to the non-coated area other than the coated area when the body surface of an automobile is painted. Suitable for fixtures.

REFERENCE SIGNS LIST 1 masking sheet fixture for painting 2 long body 2a curved surface 2b first inclined surface 2c second inclined surface 2d hollow 2e bottom 3 magnet 4 newspaper (masking sheet for painting)
10 body surface

Claims (7)

It has a long shape with a flat bottom surface extending in a belt shape, and is detachably magnetized to the vehicle body surface made of a magnetic material, and a masking sheet for painting is sandwiched and fixed between the vehicle body surface and the bottom surface. A painting masking sheet fixture comprising a flexible elongated body,
On one side of the elongated body, in a state in which the masking sheet for painting is fixed to the vehicle body surface, the vehicle body surface gradually moves from one side edge of the bottom surface to the opposite side of the other side edge of the bottom surface. A fixture for a masking sheet for painting, wherein a first inclined surface portion extending away from the masking sheet is provided from one longitudinal end to the other longitudinal end of the elongate body. In the painting masking sheet fixture according to claim 1,
On one side surface of the elongated body, a curved surface portion having a semicircular cross-section whose middle portion protrudes outward is provided from one end to the other end in the longitudinal direction of the elongated body,
The masking sheet fixture for painting, wherein the first inclined surface portion is formed by a continuous portion of the curved surface portion and the bottom surface. In the painting masking sheet fixture according to claim 1 or 2,
The flexible elongated body is made of elastic rubber or resin material, and at least one hollow portion is formed therein at predetermined intervals in the longitudinal direction,
A masking sheet fixture for painting, wherein a magnet is embedded in the hollow portion. In the painting masking sheet fixture according to claim 1 or 2,
The elongated body is made of elastic rubber or resin material, and a large number of magnetic particles are scattered throughout the elongated body. Masking sheet fixture for painting. In the painting masking sheet fixture according to any one of claims 1 to 4,
On the other side surface of the elongated body, there is a second inclined surface portion extending obliquely from the other side edge of the bottom surface toward the one side surface of the elongated body so that the cross section between the bottom surface and the bottom surface forms an acute angle. A masking sheet fixture for painting, characterized by being provided from one longitudinal end to the other longitudinal end of a long body. In the painting masking sheet fixture according to claim 5,
A masking sheet fixture for painting, wherein the second inclined surface portion has a curved cross section so as to protrude outward. In the painting masking sheet fixture according to claim 5 or 6,
The masking sheet fixture for painting, wherein the extending end of the second inclined surface portion is continuous with an edge portion of the curved surface portion on the opposite side of the continuous portion with the bottom surface.

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