JP4520812B2 - Toilet seat manufacturing method and toilet seat body - Google Patents

Description

  The present invention relates to a method for manufacturing a toilet seat.

  A conventional toilet seat is disclosed in claim 3 of Patent Document 1. This toilet seat comprises a toilet seat body and a heat insulating layer. The toilet seat body has the shape of a toilet seat, and the heat insulating layer is formed by applying a heat insulating paint on at least the seating surface side surface of the toilet seat body.

  The conventional toilet seat is manufactured by the following manufacturing method. First, for example, the toilet seat body is molded by a molding method such as injection molding using a thermoplastic resin. Next, at least a seating surface side surface of the toilet seat body is coated with a heat insulating paint by a general coating method such as spray painting. Thereby, a toilet seat is obtained.

  In the conventional toilet seat obtained in this way, the seating surface is formed by a heat insulating layer, so when a person sits on the seating surface, it exerts a warm feeling effect and relieves discomfort such as feeling cold. Can do.

JP 2003-275133 A

  However, when applying a heat insulating paint to at least the seating surface side surface of the toilet seat body, there are the following problems.

  That is, in order to improve a person's sitting comfort, the seating surface of the toilet seat is generally curved. For this reason, the heat insulating coating applied to at least the seating surface side surface of the toilet seat body tends to flow below the curved surface until it dries, and surface quality such as dripping of the heat insulating coating tends to occur. For this reason, in the conventional method for manufacturing a toilet seat, it has been difficult to exhibit a stable warm feeling effect, and it has also been difficult to improve productivity by reducing the yield.

  The present invention has been made in view of the above-described conventional situation, and provides a toilet seat manufacturing method capable of suppressing surface quality defects and simultaneously realizing a stable warm feeling effect and an improvement in productivity. Is a problem to be solved.

The toilet seat manufacturing method of the present invention is a method for manufacturing a toilet seat in which a heat insulating layer is formed by applying a heat insulating paint on at least a seating surface side surface of the toilet seat body, and a toilet seat comprising the toilet seat body and the heat insulating layer is manufactured. In the method
As the toilet seat body, an indented shape formed on the mold surface of the mold has innumerable recessed portions independently from the surface on the seating surface side, and the protruding portions remain around each recessed portion. It is characterized by using.

  The toilet seat manufacturing method of the present invention is carried out by the following procedure.

First, a toilet seat body is prepared by various manufacturing methods. In this case, the toilet seat main body is formed with an infinite number of recesses independently from the surface on the seating surface side, and an uneven shape in which the protrusions remain around each recess. Specifically, when forming the seat frame by injection molding using a thermoplastic resin, the mold surface of the mold at least seating surface side of the countless recess is recessed independently of the surface of the seating surface The convex portions corresponding to the innumerable concave portions are processed so that the concave and convex shape with the convex portions remaining around the concave portions can be formed. For this reason, the toilet seat body is formed with indentations having innumerable recesses independently from the surface on the seating surface side by a molding method such as injection molding, and the recesses are left around the recesses. .

  Next, a heat insulating paint is applied to at least the seating surface side surface of the toilet seat body by a general coating method such as brush painting or spray painting. Thereby, a heat insulation layer is formed in the surface of the toilet seat main body at least on the seating surface side, and a toilet seat is obtained.

  At this time, the heat insulating paint tends to flow below the curved surface on the surface of the seating surface having a curved surface. However, in the toilet seat body according to the present invention, since the concave portions are independently provided, the convex portions remaining on the surface of the seating surface are continuous. It will flow and accumulate. For this reason, the heat-insulating paint is unlikely to cause surface quality defects such as water droplets rising and dripping. Such an effect is exhibited when the toilet seat body has an uneven shape in which innumerable convex portions are provided independently from the surface on the seating surface side, and the concave portions remain around each convex portion. I don't get it. This is because such a toilet seat main body has a continuous concave portion, and the heat insulating paint is likely to flow down the curved surface through the concave portion, and surface quality such as dripping of the heat insulating paint is likely to occur.

  For this reason, the seating surface obtained by the manufacturing method of the present invention stably exhibits good surface quality. As a result, the toilet seat obtained can exhibit a stable warm feeling effect. In addition, the yield of the toilet seat is improved, and as a result, productivity can be improved.

  Therefore, according to the toilet seat manufacturing method of the present invention, it is possible to suppress surface quality defects and simultaneously achieve a stable warm feeling effect and an improvement in productivity.

  Moreover, according to the toilet seat manufacturing method of the present invention, innumerable recesses remain on the surface of the seating surface even after the heat-insulating coating applied on the surface of the seating surface is cured to form a heat-insulating layer. For this reason, when a person sits on the toilet seat, the area where the buttocks contact the seating surface can be greatly reduced. For this reason, the toilet seat obtained by the manufacturing method of the present invention can further enhance the warm feeling effect as compared with a conventional toilet seat having a smooth seating surface.

  The toilet seat body according to the present invention has innumerable recesses formed independently from the surface on the seating surface side, and has a concavo-convex shape in which the projections remain around each recess. The convex portions remaining on the surface are continuous. The shape of the convex portion can be various. For example, the shape of the convex portion can be determined simultaneously with the shape of the square lattice, the hexagonal lattice, the mesh, or the like. On the other hand, in the toilet seat body having an uneven shape in which innumerable convex portions are provided independently from the surface on the seating surface side, and the concave portions remain around the respective convex portions, the concave portions are continuous, The convex portion and the concave portion of the toilet seat body are different from the convex portion and the concave portion of the toilet seat body according to the present invention.

  In the toilet seat manufacturing method of the present invention, it is preferable that all the convex portions and the concave portions have curved edges. If the edge part of a convex part is formed by the curved surface, even if a collar part contacts a seating surface, it can suppress feeling unpleasant tactile sense that it is painful and rough. In addition, when the edges of the convex and concave portions are formed by a flat surface and are square, the attached dirt is difficult to remove, whereas when the edges of the convex and concave portions are curved surfaces The dirt can be easily removed.

  In the toilet seat manufacturing method of the present invention, the heat-insulating paint may include an infinite number of pores having pores inside.

  In this case, innumerable pores having pores in the heat insulating layer are dispersed. For this reason, the heat insulation performance can be further improved, and as a result, the warming effect can be further enhanced.

  Here, the pore body is a particle having pores sealed in a non-water-absorbing spherical or substantially spherical shell. If the pores of the heat insulating portion are secured by the hollow portions of the pores, the pores become independent pores. The pores may be filled with a gas such as air or may be a vacuum. It may be an inorganic pore body or an organic pore body. As the inorganic pores, glass balloons, silica balloons, quartz glass balloons, fly ash, shirasu balloons, alumina balloons, ceramics balloons and the like having a particle size of about several tens of μm can be employed. As the organic pores, urethane balloons having a particle size of about 5 to 150 μm, phenol balloons, polyamide balloons, balloons made of vinylidene chloride, methyl methacrylate, and acrylonitrile copolymers can be employed.

The toilet seat body of the present invention is a toilet seat body in which a heat insulation layer is formed by applying a heat insulating paint on at least the surface on the seating surface side to become a toilet seat,
Innumerable recesses are provided independently from the surface on the seating surface side, and the protrusions remain around each recess.

  By applying the toilet seat body of the present invention to the above-described toilet seat manufacturing method of the present invention, the above-described effects can be achieved.

  Hereinafter, Test Examples 1 to 3 embodying the present invention will be described with reference to the drawings.

(Test Example 1)
The toilet seat 1 of Example 1 shown in FIGS. 1-3 and the toilet seat 1 of Comparative Examples 1-3 were prepared.

  The toilet seat 1 of Example 1 shown in FIG. 1 consists of the toilet seat main body 2 and the heat insulation layer 3, as shown in FIG.2 and FIG.3. The toilet seat body 2 is provided with innumerable recesses 22 independently from the surface on the seating surface side, and an uneven shape in which the protrusions 21 remain around each recess 22 is formed. Specifically, the toilet seat body 2 is formed with a concavo-convex shape in which a square lattice pattern is raised on the surface. This uneven | corrugated shape is formed in the surface itself of the seating surface side of the toilet seat main body 2, as shown to Fig.3 (a). Moreover, in this uneven | corrugated shape, the edge part is formed in the convex part 21 and the recessed part 22 by the curved surface.

  The heat insulating layer 3 is formed on the surface on the seating surface side of the toilet seat body 2. As shown in FIG. 3 (b), the heat insulating layer 3 is composed of a myriad of glass balloons having pores 42 in a matrix 5 made of a urethane base resin mainly composed of acrylic polyol and unmodified polyisocyanate. 4 is a distributed configuration. The glass balloon 4 is a particle having pores 42 sealed in a substantially spherical shell 41, and has a particle size of about 65 μm.

  The manufacturing method of the toilet seat 1 of Example 1 is implemented in the following procedure.

  A heat insulating paint is prepared in advance. The heat insulating paint is prepared by mixing and mixing glass balloon 4, pigment and antibacterial agent with urethane base resin, and further reducing the viscosity with a solvent for dilution to facilitate spray coating. In Example 1, these blending ratios are 5 parts by mass for glass balloon 4, 1 part by mass for pigment, 1 part by mass for antibacterial agent, and 50 parts by mass for dilution solvent with respect to 100 parts by mass of urethane base resin. is there.

  Further, the toilet seat body 2 is formed. The toilet seat body 2 of Example 1 is molded by injecting a thermoplastic resin (polypropylene, ABS, etc.) into an injection mold (not shown). At this time, an uneven shape in which a pattern of a square lattice is raised is formed on the surface on the seating surface side of the toilet seat body 2 at the same time. As shown in Table 1, the basic dimensions of the concavo-convex shape were such that the spacing of the square lattice was 3 mm, the size of the concave portion 22 as an opening was about 2.2 mm square, and the depth of the concave portion 22 was 0.35 mm. In addition, since the seating surface of the toilet seat 1 is formed in a curved surface, the pattern of the square lattice is slightly deformed depending on the location.

  Then, by a spray coating machine (not shown), the heat insulating paint is sprayed on the surface of the toilet seat body 2 on the seating surface side, and a coating film of the heat insulating paint is formed on the surface of the toilet seat body 2 on the seating surface side. Thereafter, the coating is dried and completely cured. As a result, as shown in FIGS. 3A and 3B, the heat insulating layer 3 having innumerable pores 42 is integrally provided on the surface on the seating surface side of the toilet seat body 2. At this time, a concavo-convex shape that follows the concavo-convex shape formed on the surface on the seating surface side of the toilet seat body 2 is also formed on the surface of the heat insulating layer 3.

In the toilet seat 1 of Example 1 thus obtained, the average coating thickness of the heat insulating layer 3 was about 70 μm as shown in Table 1. The coating thickness of the heat insulating layer 3 was different between the upper part of the convex part 21 and the upper part of the concave part 22 due to the flow until the heat insulating coating material was dried, and the width thereof was about 30 to 110 μm .

  On the other hand, the toilet seat 1 of Comparative Examples 1 to 3 shown in FIG. 1 is different from the toilet seat body 2 of Example 1 described above in that the surface on the seating surface side is smooth. For this reason, on the surface of the toilet seat body 2 on the seating surface side, as shown in FIGS. 4A and 4B, the heat insulating layer 3 is formed on the smooth surface of the toilet seat body 2 on the seating surface side. Moreover, the average coating film thickness of the heat insulation layer 3 formed in the toilet seat 1 of Comparative Examples 1-3 was made to become the thickness shown in Table 1. All other configurations and manufacturing methods were the same as in Example 1, and toilet seats 1 of Comparative Examples 1 to 3 were prepared. At this time, a smooth surface is also formed on the surface of the heat insulating layer 3 so as to follow the smooth surface formed on the surface on the seating surface side.

  Next, the toilet seat 1 of Example 1 and the toilet seats 1 of Comparative Examples 1 to 3 were evaluated for surface quality after painting. The method for evaluating the surface quality after painting is to determine the presence or absence of dripping of the heat insulating paint by visual inspection.

  As a result, the surface quality of the toilet seat 1 of Example 1 was good because no sagging of the heat insulating paint occurred on the surface on the seating surface side. At this time, the heat insulating paint applied to the seating surface side surface of the toilet seat body 2 tends to flow below the curved surface on the curved seating surface, but is independent of the seating surface. Most of them flowed into and accumulated in innumerable concave portions 22 each having a convex portion remaining in the periphery. Thus, the toilet seat 1 of Example 1 is less likely to cause surface quality defects such as water droplets rising and dripping even when the heat insulating paint is applied to the curved surface of the seating surface. It is. For this reason, the seating surface can stably obtain good surface quality. Moreover, the yield of the toilet seat 1 is also improved, and as a result, productivity can be improved.

  On the other hand, the surface quality of the toilet seats 1 of Comparative Examples 1 to 3 was poor because the surface of the seating surface, which had a curved surface, had several thermal insulation coatings dripping below the curved surface. At this time, the heat-insulating paint applied to the seating surface side surface of the toilet seat body 2 has a strong tendency to flow below the curved surface until it dries, and as it flows, it forms water droplets on the smooth surface. There was a strong tendency to get excited. Thus, since the surface on the seating surface side of the toilet seat 1 of Comparative Examples 1 to 3 is a smooth surface on which the uneven shape is not formed, the heat insulating paint is applied to the surface of the seating surface having a curved surface shape. In such a case, the surface quality is liable to be raised such that the water drops rise and sag. For this reason, it is difficult to stably obtain a good surface quality for the seating surface. For this reason, it is difficult to improve the productivity by reducing the yield of the toilet seat 1.

  Furthermore, the sensory evaluation for judging the warm feeling effect was implemented about the toilet seat 1 of Example 1 and the toilet seat 1 of Comparative Examples 1-3. The sensory evaluation test uses a toilet seat body 2 having a smooth surface on the side of the seating surface, no irregularities, and no heat insulation layer, and is based on the sense of warmth felt by a person sitting on the toilet seat body 2 It is something to evaluate. An evaluation score of +2 when you don't feel cold at all, an evaluation score of +1.5 when you don't feel cold at all, +1 when you don't feel too cold, 0 at the same time, a little The evaluation score when feeling cold was -1, the evaluation score when feeling quite cold was +1.5, and the evaluation score when feeling quite cold was -2. And the value which averaged the sensory evaluation score which 20 people scored was made into the sensory evaluation score.

As a result, the toilet seat 1 of Example 1 has a sensory evaluation score of 1.3, which is 0. 0 of the toilet seat 1 of Comparative Examples 1-3. With respect to the sensory evaluation points of 82 to 1.28, a warming effect equal to or higher than that can be exhibited. For this reason, the toilet seat 1 of Example 1 can exhibit the favorable warmth effect.

  In addition, regarding the toilet seat 1 of Comparative Examples 1-3, as shown in Table 1, the sensory evaluation score is not improved in proportion to the average coating thickness of the heat insulating layer 3. As shown in FIG. 4B, this is presumed to be affected by minute protrusions 31 generated on the surface of the heat insulating layer 3. Each protrusion 31 is generated when the glass balloon 4 floats on the surface layer until the applied heat insulating paint is dried. The contact area when a person touches by the protrusion 31 becomes smaller, and it becomes easier to exert a warm feeling effect. On the other hand, as the coating film of the applied heat insulating coating becomes thicker, the glass balloon 4 is likely to be buried in the coating film, and as a result, the protrusions 31 are less likely to occur. For this reason, it turns out that it is preferable that the thickness of the coating film of the heat-insulating coating material is 100 to 150 μm for the warm feeling effect.

  Moreover, tactile sensation evaluation was also performed at the time of this sensory evaluation. This is to determine the feeling when the buttocks contact the seating surface during seating. As a result, the toilet seat 1 of Example 1 is uncomfortable as being painful and rough even when the buttocks contact the seating surface, like the toilet seats 1 of Comparative Examples 1 to 3 having a smooth seating surface. The result that it was difficult to feel the touch was obtained. The reason is considered that in the toilet seat 1 of Example 1, as shown in FIGS. 3A and 3B, the edges of all the convex portions 21 are formed by curved surfaces.

  Furthermore, the toilet seat 1 of Example 1 was also evaluated for the ease of removing dirt on the seating surface on which the concavo-convex shape was formed. As a result, in the toilet seat 1 of Example 1, since the edge of the concave portion 22 is a curved surface, the dirt adhered to the seating surface could be easily removed.

(Test Example 2)
Next, the factors for stably exhibiting the warming effect of the toilet seat 1 of Example 1 were further examined. Here, a 150 mm square plate simulating a part of the toilet seat 1 was used.

  As shown in Table 2, the 150 mm square flat plates of Examples 2 to 4 and the 150 mm square flat plates of Comparative Examples 4 to 7 are prepared. And the relationship between the average coating thickness of the heat insulation layer 3 and a warm feeling effect was examined.

  The 150 mm square flat plates of Examples 2 to 4 also include a flat plate body 2 and a heat insulating layer 3 formed on the upper surface side of the flat plate body 2 as shown in FIGS. 2 and 3. The flat plate body 2 is molded by injecting polypropylene resin into an injection mold. At this time, on the surface on the upper surface side of the flat plate body 2, as shown in FIG. As shown in Table 2, the basic dimensions of the concavo-convex shape were such that the interval between the square lattices was 3 mm, the size of the recesses 22 as openings was about 2.2 mm square, and the depth of the recesses 22 was 0.35 mm.

  Then, the spray coating machine sprays the heat insulating paint on the surface on the upper surface side of the flat plate body 2 in the form of a mist, and a coating film of the heat insulating paint is formed on the upper surface side surface of the flat plate body 2. Thereafter, the coating is dried and completely cured. As a result, as shown in FIGS. 3A and 3B, the heat insulating layer 3 having innumerable pores is integrally provided on the upper surface of the flat plate body 2. At this time, a concavo-convex shape is also formed on the surface of the heat insulating layer 3, following the concavo-convex shape formed on the surface on the seating surface side of the flat plate body 2.

In the flat plates of Examples 2 to 4 thus obtained, the average coating thickness of the heat insulating layer 3 is about 70 μm in Example 2, about 107.5 μm in Example 3, and about 107.5 μm in Example 4, as shown in Table 2. It was about 190 μm. The coating thickness of the heat insulating layer 3 varies depending on the flow until the heat insulating paint dries, and differs between the upper part of the convex part 21 and the upper part of the concave part 22 , and the width is as shown in Table 2.

  On the other hand, among the 150 mm square plates of Comparative Examples 4 to 7, the 150 mm square plate of Comparative Example 4 does not have a heat insulating layer formed on the upper surface of the flat plate body 2 used in Examples 2 to 4. It was. For this reason, the same uneven | corrugated shape as the flat plate main body 2 used for Examples 2-4 is formed in the upper surface of the flat plate main body 2 of the comparative example 4. FIG. Other configurations and manufacturing methods are the same as those in Examples 2 to 4.

  Further, the flat plate of 150 mm square of Comparative Example 5 is different from the flat plate body 2 of the above Examples 2 to 4, and the upper surface side of the flat plate body 2 having a smooth surface on the upper surface side shown in FIGS. 4 (a) and 4 (b). The heat insulation layer 3 is not formed on the surface. For this reason, the uneven | corrugated shape as shown in FIG. 2 is not formed in the surface of the upper surface side of the flat plate main body 2. FIG. All other configurations and manufacturing methods are the same as those in Examples 2 to 4.

  In addition, the 150 mm square flat plates of Comparative Examples 6 to 7 have a smooth upper surface, as shown in FIGS. 4A and 4B, similar to the flat plate body 2 used for the flat plate of Comparative Example 5 above. A flat plate body 2 and a heat insulating layer 3 formed on the upper surface side of the flat plate body 2. For this reason, the uneven | corrugated shape is not formed in the surface of the upper surface side of the flat plate main body 2. FIG. Moreover, the average coating film thickness of the heat insulation layer 3 formed in the flat plate of Comparative Examples 6-7 was made to become thickness as shown in Table 2. All other configurations and manufacturing methods are the same as those of the flat plates of Examples 2 to 4. At this time, a smooth surface is also formed on the surface of the heat insulating layer 3 provided on the flat plates of Comparative Examples 6 and 7 so as to follow the smooth surface formed on the surface on the seating surface side.

  In the flat plates of Comparative Examples 6 and 7 thus obtained, as shown in Table 2, the average coating thickness of the heat insulating layer 3 is about 35 μm for Comparative Example 6 and about 163 μm for Comparative Example 7.

  About the flat plate of these Examples 2-4 and Comparative Examples 4-7, the cold-proof evaluation test was implemented and the cold-proof index was obtained.

  In the cold resistance evaluation test, first, a load body is prepared in consideration of a person placing a buttocks on a flat plate. The load body is composed of a load body having a mass of 5 kg and a sheet made of urethane foam having a thickness of 5 mm formed integrally with the back surface of the load body. A measurement plate is also prepared. The measurement plate is composed of a 50 mm × 50 mm × 10 mm silicon plate and a thermocouple embedded 1 mm from the back surface of the silicon plate. Furthermore, a support plate is prepared. This support plate is made of urethane foam having a thickness of 10 mm.

  And each flat plate is hold | maintained at 5 degreeC for 12 hours or more in a refrigerator. Thereafter, each support plate is laid in a room of 25 ± 1 ° C., a flat plate is placed thereon, and a load body and a measurement plate held at 37 ± 1 ° C. in a thermostatic bath are placed thereon. The temperature of the measurement plate by the thermocouple is measured as the pseudo buttocks temperature (° C), and the relationship between the contact time (sec) immediately after the measurement plate is brought into contact with each flat plate and the pseudo buttocks temperature (° C) is obtained. A linear approximation formula of the obtained curve is obtained, and the inclination thereof is defined as a cold resistance index (an index of how cold it feels).

  As a result, as shown in Table 2 and FIG. 5, the flat plate of Comparative Example 5 is smooth and has no heat insulation layer, so that the cold resistance index is the highest, and it is cold when touched by a person. It was easy to feel. 4 (a) and 4 (b), in the flat plates of Comparative Examples 6 and 7 in which the heat insulating layer 3 is formed on the flat plate body 2, the cold resistance index is lower than that of the flat plate of Comparative Example 5. Therefore, the discomfort of being cold when touched by a person can be greatly suppressed. Moreover, the flat plate of Comparative Examples 6 and 7 has shown the tendency for a cold-proof index to fall as the average coating film thickness of the heat insulation layer 3 increases.

  Furthermore, although the flat plate of Comparative Example 4 has no heat insulating layer, the contact area when touched by a person can be reduced by forming an uneven shape on the surface. For this reason, with respect to the flat plate of Comparative Example 5, the cold sensation index decreases, and the discomfort of being cold when touched by a person can be significantly suppressed.

  On the other hand, as shown in FIGS. 3 (a) and 3 (b), the flat plates of Examples 2 to 4 are those in which the heat insulating layer 3 is formed and the concavo-convex shape is formed on the surface. It incorporates the good features of the flat plates of Examples 6 and 7. For this reason, with respect to the flat plates of Comparative Examples 4 to 7, it is a result that stably shows an equal or less cold resistance index. Similarly to the flat plates of Comparative Examples 6 and 7, the flat plates of Examples 2 to 4 show a tendency that the cold resistance index decreases as the average coating thickness of the heat insulating layer 3 increases. For this reason, the flat plate of Examples 2-4 has implement | achieved more reliably that it suppresses the discomfort that it is cold when a person touches the flat plate of Comparative Examples 4-7.

(Test Example 3)
In Test Example 3, the factors for stably exhibiting the warming effect of the toilet seat 1 of Example 1 were examined from another angle. Specifically, as shown in Table 3, 150 mm square flat plates of test pieces 1 to 6 were prepared, and the interval of the square lattice pattern was changed for the uneven shape formed on the upper surface side surface of the flat plate body 2. The relationship with the warming effect was investigated. However, the heat insulating layer is not formed on the uneven shape.

The 150 mm square flat plate of the test pieces 1 to 6 simulating a part of the toilet seat 1 has an uneven shape with a square lattice pattern formed on the surface, like the flat plates of Examples 2 to 4 in Test Example 2. However, the heat insulating layer 3 is not formed thereon. As shown in Table 3, the basic dimensions of the concavo-convex shape were set so that the intervals of the square lattices gradually increased from the flat plate of the test piece 1 to the flat plate of the test piece 6. Further, the size of the recess 22 that is an opening is 0.7 mm for the test piece 1, 0.9 mm for the test piece 2, 1.0 mm for the test piece 3, 1.25 mm for the test piece 4, and 1 for the test piece 5. 9 mm and 2.2 mm for the test piece 6. The depth of the recess 22 that is an opening was 0.35 mm.

  As shown in Table 3, sensory evaluation was performed on the flat plates of these test pieces 1 to 6. The sensory evaluation was the same method as in Test Example 2, and the flat plate of Comparative Example 5 having a smooth surface and no heat insulating layer was used as a reference, and the flat plates of test pieces 1 to 6 were evaluated relative to this reference.

As a result, in the flat plates of the test pieces 1 to 6, the sensory evaluation point of the test piece 1 having the smallest square lattice interval is the lowest and the sensory evaluation point of the test piece 6 having the widest square lattice interval is the highest. It became. This is presumed to be because a contact area in contact with human skin can be effectively reduced when the recess 22 that is an opening is reasonably large. Moreover, even if the recessed part 22 which is an opening part becomes large too much, it is anticipated that a human skin will press into the recessed part 22 and a contact area will increase and sensory evaluation will become low. Further, in a case where on the test piece 1 to 6 of the uneven shape of the surface of the flat heat insulating layer 3 is formed also, the size of the recess 2 2 is presumed to give a similar effect on the sensory evaluation The

  From the results of Test Examples 1 to 3 thus obtained, the following can be realized in the method for manufacturing the toilet seat 1 of Example 1.

  That is, in the method for manufacturing the toilet seat 1 of the first embodiment, it is difficult to cause a surface quality defect such that the heat-insulating paint spray-applied on the surface of the seating surface having a curved shape rises and drops in the form of water droplets. For this reason, the seating surface can stably obtain a good surface quality, and as a result, a stable warm feeling effect can be exhibited. Moreover, the yield of the toilet seat 1 is also improved, and as a result, productivity can be improved.

  Therefore, according to the method for manufacturing the toilet seat 1 of Example 1, it is possible to suppress surface quality defects and simultaneously achieve a stable warm feeling effect and an improvement in productivity.

  In addition, in the method for manufacturing the toilet seat 1 of Example 1, innumerable concave portions 22 remain on the surface of the seating surface even after the heat insulating coating applied on the surface of the seating surface is cured to form the heat insulating layer 3. . For this reason, when a person sits on the toilet seat 1, the area where the buttocks contact the seating surface can be greatly reduced. For this reason, the toilet seat 1 obtained by the manufacturing method of Example 1 can further enhance the warming effect as compared with a conventional toilet seat having a smooth seating surface.

  Furthermore, in the manufacturing method of the toilet seat 1 of Example 1, the edge part of all the convex parts 21 is formed by the curved surface. For this reason, even if the buttocks come into contact with the seating surface, it is possible to suppress an unpleasant tactile sensation such as pain and roughness. Moreover, since the edge part of the recessed part 22 is made into the curved surface, it is possible to remove a stain | pollution | contamination easily.

  Moreover, in the manufacturing method of the toilet seat 1 of Example 1, the heat-insulating paint includes innumerable pore bodies 4 having pores 42 inside. For this reason, innumerable pore bodies 4 having pores 42 therein are dispersed inside the heat insulating layer 3. For this reason, the toilet seat 1 of Example 1 can improve the heat insulation performance more, As a result, the warmth effect can be made still higher.

  In the above, the present invention has been described with reference to the first to fourth embodiments. However, the present invention is not limited to the first to fourth embodiments, and can be appropriately modified and applied without departing from the spirit of the present invention. Needless to say.

  The present invention is applicable to a toilet seat.

It is a schematic perspective view which shows the toilet seat 1 of Example 1 and Comparative Examples 1-3. It is the schematic perspective view and schematic sectional drawing which show the uneven | corrugated shape of the surface by the side of the seating surface of the toilet seat 1 of Example 1, and the surface of the upper surface side of the flat plate of Examples 2-4. It is related with the uneven | corrugated shape of the surface of the seating surface side of the toilet seat 1 of Example 1, and the surface of the upper surface side of the flat plate of Examples 2-4, (a) is principal part sectional drawing, (b) is a principal part expanded sectional view. FIG. According to the unevenness shape of the seating surface side surface of the toilet seat 1 of Comparative Examples 1 to 3 and the upper surface side surface of the flat plate of Comparative Examples 5 to 7, (a) is a cross-sectional view of the main part, (b) is a main part. It is an expanded sectional view. It is a graph which concerns on the test result of Test Example 2, and shows the evaluation result of a cold-proof index.

Explanation of symbols

1 ... Toilet seat 2 ... Toilet seat body (flat plate body)
3 ... Heat insulation layer 4 ... Pore body 21 ... Convex part 22 ... Concave part 42 ... Pore

Claims (5)

In the method of manufacturing a toilet seat, a heat insulating layer is formed by applying a heat insulating paint on at least a seating surface side surface of the toilet seat body, and a toilet seat comprising the toilet seat body and the heat insulating layer is manufactured.
As the toilet seat body, an indented shape formed on the mold surface of the mold has innumerable recessed portions independently from the surface on the seating surface side, and the protruding portions remain around each recessed portion. A method for manufacturing a toilet seat, characterized in that   The method for manufacturing a toilet seat according to claim 1, wherein all of the convex portions and the concave portions are formed with curved edges.   The method for manufacturing a toilet seat according to claim 1 or 2, wherein the heat-insulating paint includes an infinite number of pores having pores therein. The method for manufacturing a toilet seat according to any one of claims 1 to 3, wherein the uneven shape has a lattice pattern. In the toilet seat body that becomes a toilet seat by forming a heat insulation layer by applying a heat insulating paint on the surface of at least the seating surface side,
The concave-convex shape formed on the mold surface of the molding die is characterized in that innumerable concave portions are formed independently from the surface on the seating surface side, and convex portions remain around the concave portions. Toilet seat body.

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