JP2002001710A - Method for repairing flaw - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for repairing a flaw wherein the flaw can be simply and quickly repaired to a beautiful appearance even by anyone without requiring a face-conditioning operation, and sufficient durability is provided. SOLUTION: The repairing method is provided wherein a small depressed flaw 2 generated on a building, an implement and the like is repaired. A filling process wherein a repairing agent containing cyanocrylate is filled by padding into the depressed flaw 2; and a stamping and curing process wherein a die 5 equipped with a shape to be repaired via a release face 4a is stamped to a filling part 3, and the repairing agent is cured while the heaped up is made the shape to be repaired by spreading the padding, are provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for repairing a small dent in a building or furniture.

[0002]

2. Description of the Related Art The following method is known as a method for repairing a small dent scar generated in a building or furniture.

A. A method in which a synthetic resin or a substance discharged from the body of an insect is melted with a soldering iron or the like as a repairing agent, filled into a dent wound, and the surface is leveled. In some cases, such a synthetic resin or a substance discharged from the body of an insect is repaired by directly rubbing into a dent at room temperature.

B. A method for repairing dent scratches using a one-pack repairing agent commercially available under the trade name Wood Putty or Cork Bond.

C. A method for repairing dents using a two-pack repair agent.

[0006]

However, these repair methods have the following problems.

A. Since the repair method using a soldering iron requires a leveling work at a high temperature using a soldering iron,
Fillers are apt to hang down on an elevation or the like, requiring skill in the work. In addition, although the repair method of rubbing in using the same resin has the advantage of being able to work at room temperature, the filler that can be rubbed in at room temperature has a soft filler and low adhesive strength, and the repaired parts are nails, desk feet, etc. I can get it immediately. In addition, since this repairing agent is weak to heat and melts at about 50 to 70 ° C., the repaired part is sticky in summer and the durability of the repaired part is poor.

B. In the repair method using a commercially available one-pack repair agent, the curing time is long, and so-called "thinning" is liable to occur in the filling portion, whereby the appearance of the repaired surface is inferior.
In addition, the repair section requires leveling work.

C. In the repair method using the two-pack type repair agent, the mixing operation of mixing and stirring the base material (curable component) and the curing agent is troublesome, and the surroundings may be stained during the mixing operation. In addition, in the two-pack type, the curing reaction proceeds immediately after the mixing of the base material and the curing agent, so that after the mixing, the work time for repair (usable time) is limited, so that quick repair work is required. Also, a large number of fillings cannot be performed by one mixing. Furthermore, even this repair method requires a smooth surface and a short pot life, so that a high level of skill is required to quickly improve the appearance.

[0010] According to Japanese Patent Application Laid-Open No. 9-141620, a filling step of filling a concave portion such as a dent, a crack, a scratch or the like generated in wooden furniture or the like with a viscous substance and a curing step of curing the viscous substance are performed. In a method for repairing a surface including the same, a method using an instant adhesive as a viscous material has been proposed. In addition, the instant adhesive is accelerated by the combined use of a hardening accelerator, so that quick repair work is achieved.

However, according to the repair method disclosed in this publication, the curing accelerator is applied to the recess immediately before the filling step or to the instant adhesive immediately after the filling. Therefore, when the filling amount of the instantaneous adhesive is excessive, it is solidified in a state in which the filling portion is raised. The raised repair surface is finished by polishing with sandpaper or the like after waiting until a hardness sufficient for polishing is achieved. Here, the polishing damages the coloring and the coating around the filling section, so that skill is required to finish the surface cleanly. In addition, such a series of repair work cannot be shortened even if skilled, and it takes 5 minutes or more to repair one repaired portion.

In recent years, in condominiums and new houses,
With the increasing demands of residents on housing quality, the demand for small repairs from contractors and intermediaries is growing exponentially. Especially in large apartment houses, the repair area for one building is 500
Examples of up to 1000 places have been scattered.
Therefore, further speeding up of the repair work is required.

Accordingly, an object of the present invention is to provide a repairing part which can easily repair a damaged repaired part with a beautiful appearance without the need for leveling work, and which has a sufficient durability quickly. To provide a method for repairing the wound obtained.

[0014]

In order to achieve this object, an invention according to claim 1 is a repairing method for repairing a small dent in a building, furniture, or the like. A filling step of raising and filling the repair agent containing, and a pressing die having a shape to be repaired at the filling portion via a release surface, and pressing the curing agent while curing the repair agent while extending the protrusion to the repair shape. And a curing step.

According to this structure, since the cyanoacrylate is of the chemical reaction type, it can be cured without removing the solvent. Thereby, the filling portion filled with the repair agent is cured while being pressed by the pressing die via the release surface. The repairing agent is filled in a larger volume than the volume of the dent wound, filled slightly, and overflowed slightly around the periphery. You. Thus, the slightly leaked repairing agent does not impair the appearance of the repaired portion.

As a result, a repaired surface having a desired appearance can be obtained after curing, so that anyone can easily repair the scratches without the need for a leveling step. In addition, since the repair surface is a repair agent containing cyanoacrylate, the repair strength is high, the strength is maintained, and the repair portion does not easily fall off due to nails, feet of a desk, or the like.

[0017] Thus, a method for repairing a flaw can be provided, in which anyone can easily repair the flaw with a beautiful appearance without the need for a flattening operation, and a repair part having sufficient durability can be obtained. .

According to a second aspect of the present invention, in the first aspect of the present invention, in the filling step, excess repair material is removed before curing.

According to this structure, in addition to the effect of the first aspect, the excessively filled repairing agent is removed before curing, so that the amount of the overflowing repairing agent is limited and the appearance is further improved. It will be.

Further, if the excess repairing agent is removed before the curing, the wound can be repaired after the curing without the need for the surface preparation work such as polishing, as in the first aspect of the present invention. In addition, since this removal step is performed before surface preparation (before curing), the operation can be performed in a short time.

The invention according to claim 3 is characterized in that, in the invention according to claim 1 or 2, the embossing curing step is performed instantaneously while the curing is accelerated by curing acceleration means.

According to this structure, in addition to the effects described in the first or second aspect, since the curing accelerator is applied to the release surface, the repair material is instantly cured, and the working time is drastically reduced. Can be shortened.

According to a fourth aspect of the present invention, in the third aspect of the invention, the curing accelerator is a curing accelerator applied to a release surface.

According to this structure, in addition to the effects described in the third aspect, the curing accelerator may be applied to the release surface by spraying or the like. It can be performed.

According to a fifth aspect of the present invention, in the fourth aspect of the invention, the curing accelerator is dried after being applied to the release surface.

According to this structure, in addition to the effect described in claim 4, whitening of the repaired surface can be suppressed.

According to a sixth aspect of the present invention, in the third aspect of the invention, the curing accelerating means is a heating means for heating the release surface.

According to this structure, in addition to the effect of the third aspect, the release surface is heated by the heating means, whereby the curing is promoted while simultaneously performing the heating and the pressurization. Can be simplified.

The invention according to claim 7 is characterized in that, in the invention according to any one of claims 1 to 6, the repair agent is toned in the same color as the repaired part.

Since cyanoacrylate has high transparency,
It may not be necessary to color the repaired surface depending on the degree of coloring of the repaired surface. Even when the colored portion of the repaired surface is damaged by the scratch, it is not necessary to subsequently apply the colored coating to the repaired surface.
This color matching can also be performed at the repair site.

According to an eighth aspect of the present invention, in the invention according to any one of the first to seventh aspects, the pressing die is connected to the repair surface or another surface having substantially the same shape as the repair surface via a release means. It is characterized by being molded by applying a molding agent containing cyanoacrylate.

According to this structure, since the pressing mold is molded by the molding agent containing cyanoacrylate, the molding is accurate and the molding can be performed immediately. Accordingly, the time required for the molding is short, and the molding can be performed at the repair site to be partially repaired.

In this way, in addition to the effects described in any one of claims 1 to 7, repair can be performed immediately at the repair site even on a repair surface having a complicated shape.
Practicality is further increased because a molded press die can be used any number of times.

[0034]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is an example of an embodiment illustrating a method for repairing a flaw according to the present invention. In FIG. 1A, reference numeral 1
Is a repaired part in which a small dent 2 formed on the surface 1a in contact with another object is formed. The repair part 1 is a floor, a pillar, a frame, furniture or the like of a house, and the material thereof is not particularly limited, but is, for example, wooden.

In order to repair the dent scratch 2, first, FIG.
As shown in (b), a repairing agent containing cyanoacrylate is filled by being raised so as to overflow the dent wound 2 to form a filling portion 3 (filling step).

Here, as the repairing agent containing cyanoacrylate, an instant adhesive containing alkyl-α-cyanoacrylate as a main component, which is a chemically reactive adhesive (solvent-free type), can be diverted as it is. Such an instant adhesive is available, for example, from Cemedine Corporation Industrial General Catalog Ver.
4, page 17 to page 20. From the instant adhesives described above, an adhesive suitable for the purpose and application is selected in the present invention. When the scratch is shallow, a low-viscosity adhesive may be used, but in general, a high-viscosity instant adhesive or an ultra-high-viscosity or jelly-like instant adhesive is preferably used.
For example, if Cemedine 3000 jelly (trade name) is used, it is possible to cope with the case where the dent flaw 2 is large or small. In addition, if such an ultra-high viscosity or jelly-like adhesive is used, the adhesive does not droop substantially, so the repaired surface has a complicated shape, or an inclined surface, a ceiling surface, or an upright surface. Can be handled without skill.

Next, the surface of the filling section 3 is shown in FIG.
As shown in (c), the mold is pressed by a pressing die 5 via a release paper (film or sheet) 4 having a release surface 4a. Here, the pressing die 5 has a surface having a shape to be repaired, and in this case, is flat.

As the release paper 4, polypropylene,
A film or sheet such as Teflon (registered trademark) is exemplified, but the material is not limited to this as long as it has a releasing property. Instead of the release paper 4, an oil release agent may be applied to the press die 5 to form a release surface 5a (not shown), or an arbitrary film or the like may be provided with the release agent.

Next, as shown in FIG. 1D, the filling portion 3 is cured while being pressed by a pressing die 5 (a pressing hardening step). Here, since this repair agent is a chemically reactive cyanoacrylate, the curing reaction proceeds promptly without the need for removing the solvent.

When the curing reaction is completed, the pressing die 5 and the release paper 4 are removed. Since the release paper 4 has the release surface 4a, the repair agent does not adhere to the release paper 4 side, and a repair surface with a beautiful appearance can be directly obtained.

Here, it is not necessary to unnecessarily fill the dent wound 2 with the repairing agent. It is spread and spread. This cyanoacrylate is excellent in transparency and adhesiveness, and has the release surface 4a, so that the cyanoacrylate that has slightly overflowed and spread does not impair the appearance of the repaired surface.

Thus, anyone can easily repair the flaw without the need for a surface preparation step. In addition, since the repair surface is a repair agent containing cyanoacrylate, the repair strength is high, the strength is maintained, and the repair portion does not easily fall off due to nails, feet of a desk, or the like.

When the filling amount of the repairing agent is excessive, the excessive repairing agent (bump) may be lightly removed by a knife or a scraper before the embossing step. Thus, the repair agent does not unnecessarily overflow to the periphery of the repair portion, and the appearance is further improved. In addition, the removal of excessive swelling can be performed in a few seconds because it is before curing (before surface preparation), and it is a short time. Then, embossing curing is performed, so that it is not necessary to polish and planarize.

In the case of the repairing section 1 provided with the coloring layer 11 as shown in FIG. 2 and the dent scratch 2 is a shallow dent which does not damage the coloring layer 11, the cyanoacrylate has transparency. Since the color is high, the color of the colored layer 11 can be visually recognized from the upper surface as it is simply by filling, and only the dent of the dent scratch 2 is improved and the appearance becomes beautiful.

As shown in FIG. 3, when repairing the dent scratch 2 that has been damaged by the scuffing and the like even to the colored layer 11 on the repair surface, it is preferable to apply an appropriate colored coating after the repair. If a repairing agent is used in which a coloring agent such as a dye or a pigment is mixed with cyanoacrylate in advance and the repaired surface is color-matched, this coloring operation is not necessary. This color matching can be achieved by using a cyanoacrylate adhesive.
This can be done at the construction site.

Further, if the heated mold 5 or a mold having an exothermic part itself such as an iron is used as the press mold 5 in FIG. 1, the curing of the repair agent is promoted. As a result, the repair work time can be significantly reduced even when the curing takes a long time.

[0048]

[Modification 1] Next, a modification in which a molding step is added when the repair surface has a complicated shape will be described with reference to FIGS.

FIG. 4 shows a state in which something comes into contact with a bent portion such as furniture or a pillar to form a dent scratch 2. In this case, as shown in FIG. 5, a repair agent containing the same cyanoacrylate as used in the embodiment is thickly applied to another portion having the same external shape via the release paper 14 as a molding agent.

Here, as the release paper 14, a flexible or stretchable material is appropriately selected along the curved surface of the repair surface. For example, in the first modification, since the bent portion has a substantially uniform shape in the longitudinal direction (perpendicular to the plane of the drawing), the release paper 14 is a Teflon film (for example, manufactured by Chuko Kasei Kogyo Co., Ltd. Teflon adhesive tape ASF110) can be used. If the thickness is sufficiently thin, for example, even when performing molding of a complicated shape such as a spherical surface, the release paper expands and contracts, and thus the molding is facilitated.

Here, in order to make the press die 5 thick, it is preferable to apply a molding agent to the outer surface 14a of the release paper 14, which is a release surface, by spraying or the like after spraying.
After the application of the molding agent, it is preferable to further apply a curing accelerator by spraying or the like.

The curing agent is accelerated by the curing accelerator, and is immediately cured to form the pressing die 5 having a shape conforming to the outer shape of the repairing portion 1. Here, as the curing accelerator, an appropriate curing accelerator may be selected from accelerators and setters which are widely marketed, and it is preferable to select a curing accelerator which can cure as quickly as possible.

Next, as shown in FIG.
Is formed. As in the embodiment, while the release surface 4a is in contact with the filling portion 3, the pressing agent 5 prepared according to FIG. 5 is pressed to spread the repair agent in the filling portion 3 to form a curing reaction while forming a repair shape. To progress.

At the end of the curing reaction, when the pressing die 5 and the release paper 4 are removed, the repaired surface is pressed by the pressing die 5 having a desired shape, spread and cured, and the excess repair agent Spreads around the dent wound so that the steps become thinner,
A repair surface with beautiful appearance can be obtained without requiring any special surface preparation work.

Since the stamping die 5 adjusted in this modification can be used repeatedly, when there are many similar repaired parts such as an apartment house, the stamping die 5 is not used every time. By repeatedly using 5, the work efficiency can be further improved.

Other functions and effects are the same as or equivalent to those of the embodiment, and therefore, detailed description is omitted.

In the patterning step shown in FIG. 5, as shown in FIG. 7, an auxiliary portion (grip, handle, etc.) 51 for holding the pressing mold immediately after the application of the patterning agent may be provided by bonding. Good. Of course, the auxiliary part 51 may be created by raising the molding agent. In this case, the raised portion (auxiliary portion 51) can be formed in a short time within several tens of seconds to several minutes by alternately applying the molding agent and spraying the curing accelerator.

As described above, as described in this modification, the cyanoacrylate adhesive prepared as a repairing agent can also be used as a mold, so that the material used can be simplified, including the case of simple repairing. Extremely high practical value.

[0059]

[Modification 2] Next, a modification using a film or a sheet having excellent form stability in place of the release paper 4 and the press mold 5 of the embodiment will be described with reference to FIG.

In FIG. 8, reference numeral 41 denotes a film or a sheet, for example, a stable and thick film in the form of a polyester film (trade name: Lumirror 100S, thickness 100 μm) manufactured by Toray. This film 4
For example, 1 has a vertical and horizontal dimension that allows easy work, for example,
It is cut in advance to about 5 to 30 cm.

A curing accelerator is applied to one surface 41a of the film 41 by spraying or the like (a curing accelerator application step). Here, as the curing accelerator, although it depends on the degree of the depth of the dent scratch 2, a curing accelerator that can cure the repair agent instantaneously in about several seconds or less can be selected. For example, Toa Gosei Co., Ltd. Such as Aaron Aa Setter
The same curing accelerator as the molding accelerator of the first modification can be used.

Next, the surface is placed so that the one surface 41a is in contact with the repair agent, and immediately rolled by the hand roller 52 (the embossing step). As a result, the repair agent is immediately cured while being spread by the one surface 41a as the release surface, and a repair surface having a desired appearance can be obtained.

In this modification, since the curing is performed instantaneously, the working time can be extremely shortened as compared with the case where the surface is polished and leveled. This series of operations can be performed within several minutes per repair location.

The film 41 used in the second modification is
Can be used repeatedly. Therefore, it is more suitable for finishing a flat portion or the like in a large number of places than the case where the normal release paper 4 is used.

When the outer surface 52a of the roll as the hand roll 52 is release-finished with Teflon or the like, the curing accelerator may be directly sprayed on the outer surface 52a to roll the repair surface. In this case, the release paper 4
Alternatively, the film 41 becomes unnecessary.

Other functions and effects are the same as or equivalent to those of the embodiment, and therefore, detailed description is omitted.

[0067]

[Modification 3] In Modification 2, the periphery of the repaired part may be whitened. Although the cause of the whitening is not clear, it is considered that when a solvent such as alcohol is contained as a curing accelerator, moisture in the air due to evaporation of the solvent is deposited on the entire surface 41a.

Then, after the curing accelerator is sprayed on the one surface 41a, the curing accelerator is dried by gently blowing hot air with a drier or the like toward the one surface on which the curing accelerator has been applied (drying step). Thereafter, the release paper 4 is placed on the repaired surface in the same manner as in Modification Example 2, and immediately rolled with a pressing die 5 such as a hand roller.
A repair surface having a desired appearance can be stably obtained.

The other functions and effects are the same as or equivalent to those of the second modification, and thus detailed description is omitted.

In the above description, a building or furniture has been described as an example. However, since cyanoacrylate-based adhesives have not only wood parts but also plastics, metals, ceramics, stones, rubbers and the like, they are widely used. In repairing the wound, a durable repair surface can be obtained even if the material of the building or furniture is not only wood but also other materials or various composite materials. Further, by applying an adhesive pretreatment step such as a primer treatment to the repaired surface, the applicable range of the repaired surface can be expanded.

[0071]

As described above, according to the present invention, anyone can easily repair a repaired part having a scratch to a beautiful appearance without requiring a leveling operation, and achieve sufficient durability. It is possible to provide a method for repairing a flaw in which a provided repair part is obtained. Also, by using a curing accelerator together, quick repair work can be performed.

[Brief description of the drawings]

FIGS. 1 (a) to 1 (d) are cross-sectional views of essential parts for explaining a method for repairing a flaw according to the present invention according to steps.

FIG. 2 is a sectional view of a main part showing a modified example of the repairing part according to the present invention.

FIG. 3 is a cross-sectional view of a main part showing a modified example of the repair part according to the present invention.

FIG. 4 is a fragmentary sectional view showing a modified example of the repair part according to the present invention.

FIG. 5 is a cross-sectional view of a main part for explaining a state of molding of the repair part in FIG. 4;

FIG. 6 is a cross-sectional view of a main part for describing a method of repairing the repair part of FIG. 4;

FIG. 7 is a sectional view of a main part showing a modification of the molding of FIG. 5;

FIG. 8 is a cross-sectional view of a main part showing a modified example of the repair part according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Repair part 11 ... Coloring part 2 ... Dent flaw 3 ... Filling part 4 ... Release paper 4a ... Release surface 5 ... Press mold 5a ... Release surface 51 ... Auxiliary part

Claims (8)

[Claims] 1. A repair method for repairing a small dent scar generated in a building, furniture, or the like, comprising: a filling step of swelling and filling a repair agent containing cyanoacrylate into the dent scar; A stamping die having a shape to be repaired by embossing, and an embossing curing step of curing the repairing agent while extending the swell to form a repaired shape. 2. The method for repairing a wound according to claim 1, wherein in the filling step, excess repair material is removed before curing. 3. The method for repairing a wound according to claim 1, wherein the embossing step is performed instantaneously while the curing is accelerated by a curing accelerator. 4. The method for repairing a wound according to claim 3, wherein said curing accelerator is a curing accelerator applied to a release surface. 5. The method for repairing a wound according to claim 4, wherein the curing accelerator is dried after being applied to the release surface. 6. The method for repairing a flaw according to claim 3, wherein said curing acceleration means is heating means for heating said release surface. 7. The method for repairing a wound according to claim 1, wherein the repair agent is toned in the same color as the repaired part. 8. The mold according to claim 1, wherein the pressing mold is formed on the repaired surface or another surface having substantially the same shape as the repaired surface with a molding agent containing cyanoacrylate via a releasing means. Item 8. The method for repairing a wound according to any one of Items 1 to 7.