JPH10202759A - Resin packing repair method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a resin packing repair method in which a resin is packed and cured simply to be fixed surely in a recessed hole part so that the surface of a repaired place is finished well. SOLUTION: In a repair method, a recessed hole part 2 is formed in a repairing place on the surface of an object 1, the inner side surface of the part 2 is formed in an undercut shape, and a resin is packed into the part 2 and cured. After that, the surface of the resin is finished to be almost the same with the surface of the object 1, and an ultraviolet curable resin is particularly effective in the repair method.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for forming a concave portion at a repaired portion when the surface of an object such as a bathtub or a basin counter is broken or cracked. The present invention relates to a resin filling and repairing method for filling a resin in a part and finishing the surface.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 5, a concave portion 2 is formed in a repair portion on the surface of an object 1, and a resin 3 is filled in the concave portion 2 and the resin 3 is cured. Then, a resin filling and repairing method for finishing the surface of the resin 3 and the surface of the object 1 substantially flush is known.

In this case, the object 1 is a bathtub, a washing counter, or the like, in which a surface material layer 5 made of acrylic resin or other colored resin is formed on the surface of a base material 4 made of FRP, wood, or the like. is there.

Further, the concave portion 2 is formed by cutting to a depth from the surface material layer 5 of the object 1 to the base material 4, and a primer 6 is applied to an inner surface of the concave portion 2 to form the concave portion 2. Resin 3 in part 2
The resin 3 is cured and adhesively fixed. Thereafter, the excess raised portion 7 of the resin 3 is polished or cut and removed, and the surface of the resin 3 is finished to be substantially flush with the surface of the surface material layer 5 of the surrounding object 1.

In the case shown in FIG. 5A, a thermosetting resin such as polyester is used as the resin 3 to be filled, and the resin 3 is colored in the same color as the surface material layer 5. The resin 3 is filled in the recess 2 at a time and is cured. In the case shown in FIG. 5 (b), an ultraviolet curable resin is employed as the resin 3 to be filled, and the resin 3 is also colored in the same color as the surface material layer 5, and the resin 3 has a plurality of layers. It is divided and filled, and ultraviolet light is irradiated for each layer to be cured.

[0006]

However, in the above-mentioned conventional technique, it is necessary to apply a primer 6 to the inner surface of the concave portion 2 in order to fix the resin 3 in the concave portion 2. The application work was troublesome. In particular, in the case shown in FIG. 5A, it takes a long time of 2 to 3 hours to cure the thermosetting resin 3, and FIG.
In the case shown in (b), it is difficult for ultraviolet rays to enter the colored ultraviolet-curing resin 3, so that the resin 3 is thinly divided into a plurality of layers and filled, and each layer is irradiated with ultraviolet rays. It has to be cured, and it takes time and effort to repeatedly fill the resin 3 and irradiate with ultraviolet rays.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems in the prior art. That is, an object of the present invention is to make it possible to easily fill and harden a resin in a concave portion, and to fill and harden the resin. It is an object of the present invention to provide a resin filling and repairing method in which a resin is securely fixed in the concave hole portion and the surface of the repaired part is finished with good appearance.

[0008]

According to a first aspect of the present invention, there is provided a resin filling and repairing method, wherein a concave portion is formed at a repair portion on a surface of an object, and an inner surface of the concave portion is formed in an undercut shape. The method is characterized in that a resin is formed in the recess, the resin is filled in the recess, the resin is cured, and then the surface of the resin and the surface of the object are finished substantially flush.

Therefore, in this case, the resin which is filled and hardened in the concave portion whose inner surface is formed in an undercut shape is securely fixed in the concave portion, so that the operation of applying the primer is not required and the resin is hardened. The work of filling and curing the resin is simplified. In addition, the surface of the resin cured and filled and the surface of the object are finished almost flush with each other, so that the surface of the repaired part is finished with good appearance.

According to a second aspect of the present invention, there is provided the resin filling and repairing method according to the first aspect of the present invention, wherein the concave portion is first filled with an ultraviolet-curable transparent resin, and then the upper portion of the transparent resin is filled. Is filled with a transparent or translucent ultraviolet curable colored resin colored in the same color as the surface of the object, and the transparent resin and the colored resin are cured by irradiating ultraviolet rays. It is characterized in that the surface of the object is almost flush with the surface.

Therefore, in this case, in particular, the resin filled in the concave portion is made of an ultraviolet-curable transparent resin and a colored, transparent or translucent ultraviolet-curable resin which is filled thereon. Since it is a colored resin, the transparent resin and the colored resin can be cured at once in a short time by irradiating ultraviolet rays, and the filling and curing work of the resin composed of the transparent resin and the colored resin is further simplified. .

According to a third aspect of the present invention, there is provided the resin filling and repairing method according to the first aspect of the present invention. Then, a colored resin colored in the same color as the surface of the object is filled on the transparent resin to cure the colored resin, and thereafter, the surface of the colored resin and the surface of the object are finished to be substantially flush. It is characterized by the following.

Therefore, in this case, in particular, since the resin filled in the concave portion is an ultraviolet-curing transparent resin and a colored resin filled thereon, the ultraviolet-curing transparent resin is filled in the concave portion. A large amount of resin is filled thickly, and at this stage, the same transparent resin can be cured together in a short time by irradiating ultraviolet rays, and then a small amount of the colored resin is thinly filled and the colored resin is filled in a short time. The resin can be cured, and a conventional thermosetting resin can be used as the colored resin.

According to a fourth aspect of the present invention, there is provided the resin filling and repairing method according to the second or third aspect, wherein the object having the surface material layer on the surface of the base material has a higher thickness than the surface material layer. It is characterized in that a colored resin layer is formed in a thin shape.

Therefore, in this case, particularly, the colored resin to be filled on the transparent resin is formed to have a thin layer, and when the colored resin is of an ultraviolet curable type, the colored resin is irradiated with ultraviolet rays to be irradiated with ultraviolet rays. And the transparent resin thereunder can be cured at once in a shorter time, and when the colored resin is a thermosetting resin, the thinned colored resin is cured in a shorter time. Can be.

[0016]

1 to 3 show the first embodiment of the present invention.
2 and 4, an embodiment corresponding to the resin filling and repairing method according to the embodiment is described.
And the inner surface of the concave portion 2 is formed in an undercut shape.
Is cured, and then the surface of the resin 3 and the surface of the object 1 are finished almost flush.

In the resin filling and repairing method of this embodiment, the concave portion 2 is first filled with an ultraviolet-curing transparent resin 3a, and then the transparent or translucent transparent object 3 is placed on the transparent resin 3a. The surface is filled with an ultraviolet-curable colored resin 3b colored in the same color as the surface and irradiated with ultraviolet light to cure the transparent resin 3a and the colored resin 3b. Thereafter, the surface of the colored resin 3b and the surface of the object 1 are separated. It is finished almost flat. In this case, the thickness of the colored resin 3b is formed to be thinner than the surface material layer 5 of the object 1 having the surface material layer 5 on the surface of the base material 4.

The object 1 is a molded article such as a bathtub, a wash counter, etc., in which a surface material layer 5 made of acrylic resin or other colored resin is formed on the surface of a base material 4 made of FRP, wood or the like. is there. In this case, the surface material layer 5 has a plate shape and is adhered to the surface of the base material 4.

Further, the concave portion 2 is formed by cutting to a depth from the surface material layer 5 of the object 1 to the substrate 4. In this case, FIG.
As shown in (a), the cutting process is performed by the router 8 whose tip is enlarged, and the entire inner surface of the concave hole portion 2 is formed in an undercut shape. Next, as shown in FIG. 3 (b), the transparent resin 3a is filled in the concave hole portion 2, and subsequently, as shown in FIG. 3 (c), the transparent resin 3a is filled with the colored resin 3b. Is done. In this case, the transparent resin 3a is filled in a large amount so as to reach the middle of the thickness of the surface material layer 5, and the transparent resin 3a
Is filled with the colored resin 3b so as to swell. Next, the transparent resin 3a and the colored resin 3b are cured by being irradiated with ultraviolet rays.
Is polished or cut off, so that the surface of the colored resin 3b and the surface of the surface material layer 5 of the object 1 around the same are finished to be substantially flush.

Therefore, in the resin filling and repairing method of this embodiment, the resin 3 that is filled and hardened in the concave portion 2 having an inner surface formed in an undercut shape is securely fixed in the concave portion 2. Therefore, the work of applying the primer is not required, and the work of filling and curing the resin 3 is simplified. In addition, the surface of the resin 3 that has been filled and cured is finished substantially flush with the surface of the object 1, so that the surface of the repaired part is finished with good appearance.

Moreover, in the resin filling and repairing method of this embodiment, the resin 3 filled in the concave portion 2 is made of an ultraviolet-curable transparent resin 3a and a colored resin filled thereon. Since it is made of a transparent or translucent ultraviolet-curable colored resin 3b, the transparent resin 3a is irradiated with ultraviolet rays.
In addition, the colored resin 3b can be collectively cured at a time in a short time, and the filling and curing work of the transparent resin 3a and the resin 3 composed of the colored resin 3b can be further simplified.

Further, in this case, since the thickness of the colored resin 3b filled on the transparent resin 3a is formed to be thinner than the surface material layer 5, ultraviolet rays can easily pass through the colored resin 3b. ,
The colored resin 3b, which is an ultraviolet-curable type, and the transparent resin 3a, which is an ultraviolet-curable type under the colored resin 3b, can be collectively cured at once by irradiating ultraviolet rays.

FIG. 4 shows another embodiment corresponding to the first, second and fourth aspects of the present invention. In the resin filling and repairing method of this embodiment, the concave portion 2 is formed in a groove shape. An undercut recess 9 formed on the inner surface of the recess 2 at a partial position in the longitudinal direction thereof.
Are formed. The other configuration is the same as that of the above embodiment, and the same operation and effect as those of the above embodiment can be obtained.

In each of the above-described embodiments, the concave portion 2 is first filled with an ultraviolet-curable transparent resin 3a and cured by irradiating ultraviolet rays, and then the surface of the object 1 is placed on the transparent resin 3a. Fill the colored resin 3b colored in the same color
When the surface of the colored resin 3b and the surface of the object 1 are finished to be substantially flush with each other after curing the resin 3b, another embodiment corresponding to claims 1, 3, and 4 of the present invention is provided. .

In this case, the resin 3 filled in the concave portion 2 is composed of an ultraviolet-curable transparent resin 3a and the colored resin 3b filled thereon. A large amount of ultraviolet-curing transparent resin 3a is filled thickly, and at this stage, the same transparent resin 3a can be cured in a short time by irradiating ultraviolet rays first, and then a small amount of colored resin 3b is thinly filled. Thus, the colored resin 3b can be cured in a short time, and a conventional thermosetting resin can be used as the colored resin 3b. Further, when a thermosetting resin is used as the colored resin 3b, if the layer thickness of the colored resin 3b is formed thinner than the surface material layer 5 of the object 1, the thinned shape is obtained. The resulting colored resin 3b can be cured in a shorter time. Other than that, the same operation and effect as in the above embodiment can be obtained.

[0026]

As described above, in the resin filling and repairing method according to the first aspect of the present invention, the resin to be filled and cured in the concave portion is securely fixed, and the filling and curing operation of the resin is simple. The surface of the filled and cured resin and the surface of the object are finished substantially flush, and the surface of the repaired part is finished with good appearance.

In the resin filling and repairing method according to the second aspect of the present invention, in particular, the transparent resin and the colored resin filled in the concave portion by irradiating ultraviolet rays are cured at once in a short time. And the work of filling and curing the resin composed of the transparent resin and the colored resin is further simplified.

In the resin filling and repairing method according to the third aspect of the present invention, in particular, a large amount of an ultraviolet-curable transparent resin is filled into the concave portion, and at this stage, the transparent resin is first irradiated with ultraviolet light to be transparent. Resins can be cured together in a short time, and then a small amount of a colored resin can be thinly filled and cured in a short time, and a conventional thermosetting resin is adopted as the colored resin. You can also.

In the resin filling and repairing method according to the fourth aspect of the present invention, in particular, when the colored resin is an ultraviolet curing type, the colored resin and the transparent resin thereunder are irradiated at once by irradiating ultraviolet rays. It can be cured together in a shorter time, and when the colored resin is a thermosetting resin, the thin colored resin can be cured in a shorter time.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a repair location by a resin filling repair method according to an embodiment of the present invention.

FIG. 2 is a plan view showing a repair location by the resin filling repair method.

FIGS. 3A, 3B, and 3C are cross-sectional views showing respective steps in the resin filling and repairing method.

FIG. 4 is a cross-sectional perspective view showing a repair location by a resin filling repair method according to another embodiment.

5 (a) and 5 (b) are cross-sectional views showing repair points by a resin filling repair method which is a different conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Object 2 Concave hole 3 Resin 3a Transparent resin 3b Colored resin 4 Base material 5 Surface material layer

Claims (4)

[Claims] 1. A concave portion is formed at a repair location on the surface of an object, an inner surface of the concave portion is formed in an undercut shape, and the concave portion is filled with a resin to cure the resin. And then finishing the surface of the resin and the surface of the object substantially flush with each other. 2. An ultraviolet-curable transparent resin is first filled in the concave portion, and then an ultraviolet-curable colored resin that is transparent or translucent and is colored in the same color as the surface of the object is filled on the transparent resin. 2. The method according to claim 1, wherein the transparent resin and the colored resin are cured by filling and irradiating ultraviolet rays, and thereafter, the surface of the colored resin and the surface of the object are finished to be substantially flush.
The resin filling repair method described. 3. Filling the concave portion with an ultraviolet-curable transparent resin, irradiating it with ultraviolet light to cure the resin, and then filling the transparent resin with a colored resin colored in the same color as the surface of the object. 2. The resin filling and repairing method according to claim 1, wherein the colored resin is cured, and thereafter, the surface of the colored resin and the surface of the object are finished substantially flush. 4. The resin filling repair according to claim 2, wherein the thickness of the colored resin is formed to be thinner than the surface material layer of the object having the surface material layer on the surface of the base material. Method.