JP2014124338A - Hand-wash counter for child - Google Patents

Abstract

PROBLEM TO BE SOLVED: To form a hand-wash counter including a sink of a length and a depth allowing a child to easily use, and enabling a plurality of children to wash hands in a row.SOLUTION: A hand-wash counter 1 is configured by: forming an oblong sink 2 of a size allowing a plurality of children to wash hands in a row sideways, by preferably using artificial marble molding resin through a cast process, integrally molding a bottom 21 and peripheral side parts 22, 23, 24, and 25, and providing a length in a dimension of equal to or greater than 400 mm; providing a flange part 27 on the upper end outer circumference of the sink 2; bonding and fixing to the upper end part of the sink 2, a counter top plate 31 where a recessed step part 31c bonded with the flange part 27 is provided on the peripheral lower surface of an opening 31a; and further mounting a counter front plate 32 and right and left side surface plates 34 and 35 on the end part of the counter top plate 31.

Description

  The present invention relates to a hand-washing counter for children suitable for children to wash their hands and water in an elementary school or the like.

  In the hand washing area of educational facilities such as kindergartens, elementary schools, and children's halls, a faucet is attached to a horizontally formed sink so that children and children can wash hands side by side or wash together with multiple people. There is a hand-washing counter that is composed of a plurality of juxtapositions.

  As such a hand-washing counter, an artificial marble plate is heated and pressed into a long concave shape having a substantially U-shaped cross section, and a lid is bonded and fixed to both ends thereof to form a horizontally long sink. Also, a method for manufacturing an artificial marble hand-washing counter by attaching an artificial marble counter top plate, counter front plate and left and right side plates is proposed by the present applicant (see, for example, Patent Document 1).

JP 2012-139367 A

The manufacturing method of the hand-washing counter is capable of forming sinks of different sizes, such as for three or five people, without using a dedicated mold, but the size of the artificial marble plate material is specified. Therefore, there is a limitation in sheet processing that the upper limit of the size of the sink that can be formed is limited. At present, the size of the sink that can be molded is suitable for use by five children or kindergartens with an average height of about 95 cm to 110 cm. Specifically, the sink has a depth of 300 mm, a depth of 150 mm, A length of about 2000 mm is the limit.
Artificial marble hand-washing counters are installed in elementary school hand-washing areas because they have the advantages of clean surfaces, excellent impact resistance, solid materials that are difficult to stain and easy to clean and hygienic. Although there are many requests to do so, depending on the manufacturing method, it is not possible to mold a sink with a size that is larger in depth and depth so that a child with a better physique than an infant or a kindergarten can use.

In addition, when installing a hand-washing counter in an elementary school hand-washing area, hand-washing counters can be used safely without damage even if children playfully sit on the sink or counter or hit the front of the counter. Must be provided in a robust structure.
In addition, in elementary schools, for example, the frequency of using hand-washing sinks compared to the type of hand-washing sinks used in kindergarten, such as washing brushes with paint and ink applied after drawing or calligraphy lessons, etc. The amount of water used is large, and there are many opportunities for dirt to adhere to the sink. In this case, if the water discharged from the faucet into the sink is not smoothly drained from the drain, the surface of the sink is contaminated with dirt adhering to the sink, and the accumulated water tends to be a source of germs and become unsanitary. . Therefore, in order to keep the hand-washing counter clean, it is important that the water that has flowed into the sink flows smoothly toward the drain outlet along with the dirt, and is surely drained from the drain outlet.

  In view of the above-described problems of the prior art, the present invention is made of a synthetic resin such as artificial marble that has a sink with a depth and depth that can be easily used by children and that can be hand-washed by multiple children. It is an object to construct a hand-washing counter, to make the hand-washing counter a robust structure, and to enhance the drainage function of the hand-washing counter so that water that has flowed into the sink can be drained smoothly and reliably from the drain.

  In order to solve the above problems, the present invention provides a children's hand-washing counter having a horizontally long sink that allows a plurality of children to wash hands side by side, wherein the sink is in a fluid state. The synthetic resin sink is formed by integrally molding the bottom part and the peripheral side part rising from the peripheral edge of the bottom part, and forming the depth to a dimension of 400 mm or more by a casting method in which the material is poured into a mold and solidified. The counter top plate is attached to the upper end portion of the sink, and the front portion and the left and right side portions of the sink are surrounded by the counter front plate and the left and right side plates.

The hand-washing counter of the present invention is configured by attaching a counter top plate, a front plate, and left and right side plates made of the same resin material to a horizontally long sink made of synthetic resin integrally molded by a casting method (casting). .
The sink is integrally formed by a casting method in which a molten resin is poured into a wooden mold or a mold such as a mold or a mold and solidified. Therefore, when the artificial marble plate is pressed to form the sink There is no restriction on the molding size that occurs in the past, and by using a mold made to a desired size, the depth and depth are large, and multiple children and adults can wash hands side by side Can be molded to size.
Further, when forming the sink by pressing the artificial marble plate material, an operator polishes the surface of the artificial marble plate material processed into a long concave shape so that the gradient of the upper surface of the bottom portion of the sink becomes constant. There are cases where the processing accuracy varies depending on the operator, but by forming the sink integrally with the molding die by the casting method, the slope of the upper surface of the bottom of the sink and the step where the drain plug is attached, Since the sink surface, such as a curved surface inside the sink, which will be described later, can be formed with high precision and precision, such as the fine inclination, unevenness, and curved surface of the sink surface, there is no need for a processing step by the operator as described above. It becomes possible to mass-produce precision sinks.

In addition, an appropriate resin material can be used for molding the sink. As the molding resin, a resin mainly composed of an artificial marble molding resin, particularly a methacrylic resin containing an inorganic filler as a main component. If an artificial marble sink is molded using, a sink having high strength and good impact resistance and durability can be obtained.
The sink made of artificial marble in which the bottom and the peripheral side are integrally molded does not have a part that is bonded and fixed with an adhesive in the sink, so that the adhesive deteriorates due to water immersion and the strength decreases or dirt adheres to the sink. The surface should not be contaminated, and combined with an artificial marble counter plate, the surface should be clean, hard to break, easy to clean and maintain the initial strength of construction. Can do.

In the child hand-washing counter having the above-described configuration, a flange projecting outward is provided on the outer periphery of the upper end of the opening defined by the upper end of the peripheral side of the sink, and is substantially the same as the opening of the sink provided on the counter top plate. A concave step where the upper surface and side surfaces of the flange portion are joined is provided on the lower peripheral edge of the opening of the same shape, the concave step portion of the counter top plate is joined to the upper end portion of the sink, and the joint portion is bonded and fixed. The counter top plate is preferably attached to the sink.
Thus, by providing a flange on the outer periphery of the opening of the sink, and providing the flange to be bonded and fixed to the concave step provided on the opening of the counter top plate, the upper end of the sink is simply Since the bonding area is larger than when the upper surface is bonded to the lower surface of the opening of the counter top plate, the strength of the bonded portion increases, and the load capacity in the vertical direction of the sink and counter top plate increases, so that the sink and counter top plate Even if a heavy object is placed on top or a large impact is applied from above, a structure that is not easily damaged can be obtained.

Moreover, the child hand-washing counter having the above-described configuration preferably has a configuration in which a plurality of reinforcing plates are installed at intervals between the front portion of the sink and the counter front plate along the longitudinal direction of the sink.
In this way, by providing a reinforcing plate between the front part of the sink and the counter front plate, the strength against the load applied to the front of the counter front plate is increased, and even if the user leans on or hits the counter The original shape of the hand-washing counter can be maintained without deforming or damaging the counter front plate.

Furthermore, in the handwashing counter for children having the above-described configuration, the upper surface of the bottom of the sink is provided with a water gradient from its peripheral portion toward the drain outlet formed in the center of the bottom. In order to prevent water from collecting around the drain outlet to be mounted, the water gradient is preferably provided so that the gradient in the vicinity of the drain outlet is larger than the gradient of the peripheral portion on the upper surface of the bottom.
Furthermore, the water gradient on the bottom top surface of the sink is composed of a gradient A from the periphery of the bottom top surface to the vicinity of the drain port, a gradient B from the periphery of the drain port to the vicinity of the drain port, and a gradient C in the vicinity of the drain port. It is preferable to provide a plurality of gradients and to increase the gradient of these gradients (A <B <C) as they approach the drain outlet rather than the peripheral portion on the bottom upper surface.
According to this, if there is a water gradient so that the gradient in the vicinity of the drainage port is larger than the gradient in the peripheral part on the upper surface of the bottom of the sink, it flows down toward the drainage port on the gradient in the peripheral part. The water is energized as it passes through the gradient near the drain, increasing the flow rate and flowing down to the drain, ensuring that the water that has flowed out of the faucet into the sink does not stay around the drain. It can be drained. If the slope is gradually increased and the gradient is provided in three or more stages, the water that has gained momentum after passing through the previous stage is further increased by the next stage, and the flow rate is increased. It can be made to flow down to the drain plug attached to the drain port.
In this way, the sink drainage function of the sink is enhanced by providing a multi-stage water gradient on the bottom upper surface of the sink, and the water that has flowed out of the faucet into the sink is smoothly flowed toward the drain outlet to ensure that the drain outlet Therefore, it is difficult for water stains to adhere to the sink surface, and there is no stagnation of water that tends to be a breeding source of germs, and the hand-washing counter can be kept clean and hygienic.
In addition, if a crease appears on the boundary of each gradient that forms a water gradient on the bottom upper surface of the sink, it will cause water flow in this boundary portion and cause water to stay on the sink, It is preferable that the edges of adjacent gradients are connected by curved surfaces. Further, the surface of the sink is preferably rough enough to be obtained by polishing with # 320 sandpaper so that water flows smoothly from the periphery of the sink to the drain.

When the hand-washing counter having the above structure is installed in an educational facility for children such as an elementary school, the depth W of the sink is set to 400 mm or more so that the child can easily operate the faucet by standing in front of the hand-washing sink. In addition, in order to facilitate washing with a bucket placed in the sink, the depth D is set to about 230 mm and molded, and this is supported on a leg of an appropriate configuration, and the counter top plate It is preferable to install so that the height H is about 600 mm to 750 mm (see FIG. 6).
Further, the sink can be formed to a length L of about 1500 mm for 3 persons and about 2500 mm for 5 persons so that a plurality of children can be used side by side (see FIG. 5). Furthermore, the sink is preferably formed by providing a curved surface with an appropriate bending radius at the inner corner of the sink and providing a flat portion with an appropriate width on which a bucket or the like can be placed on the bottom.

It is an external appearance perspective view of the state which supported the hand-washing counter of one Embodiment of this invention with the leg body. It is the perspective view which expand | deployed the structural member of the hand-washing counter of FIG. It is an expanded sectional view of the attachment part of a sink and a counter top plate. It is the perspective view which expand | deployed the structural member of the leg of FIG. (A) is a top view of a hand-washing counter, (B) is the front view which fractured | ruptured the principal part of the hand-washing counter of FIG. FIG. 6 is a cross-sectional view taken along line VI-VI in FIG. It is a schematic sectional drawing in alignment with the VII-VII line of FIG.5 (B). It is a hand-washing counter of other embodiment of this invention, Comprising: (A) is an external appearance perspective view of the state supported by the leg body, (B) is a top view of a hand-washing counter. It is sectional drawing which expanded and showed the drain outlet and its peripheral part in order to demonstrate the water gradient attached to the sink.

A preferred embodiment of the present invention will be described with reference to the drawings.
The hand-washing counter 1 according to the present invention comprises a horizontally long sink 2 that is shaped to allow hand-washing of a plurality of children side by side. As shown in FIG. It is fixed integrally on the metal leg 7 assembled by the above and installed in a hand washing place of an elementary school or the like. In the figure, reference numeral 5 is a faucet and 6 is a drain plug.

  The hand-washing counter 1 shown in FIG. 1 is sized so that five children can line up side by side and wash hands at the same time, as shown in FIG. Sink 2 formed by integrally raising 22, 23, 24, 25 upward, counter top plate 31 attached to the upper end of sink 2, front portion 22 of sink 2, and left and right side portions 24, 25 are enclosed. The counter plate 3 composed of the counter front plate 32 and the left and right side plates 33 and 34 mounted in this manner, and a plurality of reinforcing plates 4 installed between the front portion 22 of the sink 2 and the counter front plate 32 are constituent members. The counter plate 3 and the reinforcing plate 4 are integrally assembled to the sink 2.

More specifically, the sink 2 uses a resin mainly composed of a methacrylic resin, which is a molding resin of artificial marble, and casts the resin in a fluid state through a molding die to solidify it from the periphery of the horizontally long bottom 21. The peripheral part consisting of the front part 22, the rear part 23, and the left and right side parts 24, 25 is continuously raised upward, and the opening 26 defined by the upper end of the peripheral side part has a substantially rectangular shape in plan view. And it is shape | molded in the horizontal elongate shape whose vertical cross section exhibits a substantially U shape.
On the outer periphery at the upper end of the peripheral side portion of the sink 2, that is, the outer periphery at the upper end of the opening portion 26, a flange portion 27 that protrudes horizontally outward is provided over the entire periphery. The bent corners of the bent portions 24, 25 and the front portion 22 and the rear portion 23 are curved surfaces (R1, R2) each having a radius of about 20 mm (see FIG. 5). Also, the corners of the bottom 21 and the rear 23 are curved surfaces (R3) having a radius of about 20 mm, and the corners of the bottom 21 and front 22 are curved surfaces (R4) having a radius of about 50 mm (see FIG. 6). .
In addition, the sink 2 is provided with a drain outlet 28 in the center of the bottom 21, and extends from the corner of the base of the peripheral side portion, which is a peripheral part of the bottom 21, to the drain outlet 28 on the upper surface of the bottom 21. As shown in FIG. 9, the gradient A from the peripheral portion to the periphery of the drain port 28, the gradient B from the periphery of the drain port 28 to the vicinity of the drain port 28, and the gradient C in the vicinity of the drain port 28. Are connected with a curved surface between the edges of adjacent gradients, and the gradient of these gradients increases (A <B <C) with increasing inclination toward the drain port 28 rather than the peripheral portion. . As will be described later, the gradients constituting the water gradient (inclination angle with respect to the horizontal plane) are preferably set such that the gradient A is 3 °, the gradient B is 15 °, and the gradient C is 74 °.
The sink 2 is set to a depth W of 410 mm so that the child can easily operate the faucet 5, and five children wash their hands by hand or place a bucket in the sink 2 to wash the water. In order to make it easy to do so, it is molded to a size in which the center depth D is set to 230 mm and the length L is set to 2440 mm.

The counter top plate 31, the counter front plate 32, and the left and right counter side plates 33 and 34 constituting the counter plate 3 are each formed by cutting an artificial marble plate material.
More specifically, as shown in FIG. 2, the counter top plate 31 has a vertical and horizontal width slightly larger than the depth D and width W of the sink 2, specifically, a vertical width of about 550 mm and a horizontal width of about 2500 mm. It has a set rectangular shape in plan view, and has an opening 31a substantially the same shape as the opening 26 of the sink 2 on the front side in the plane, and five through holes 31b to which the faucet 6 is attached on the rear side. In addition, a concave step portion 31c is formed on the lower surface of the peripheral edge of the opening 31a so that the upper surface and the side surface of the flange portion 27 of the sink 2 are joined.
The counter front plate 32 is formed in a rectangular shape with the longitudinal width set to be approximately the same as the horizontal width of the counter top plate 31 and the short width set to a size of about 320 mm larger than the depth D of the sink 2. The left and right counter side plates 33 and 34 are formed in a rectangular shape with the longitudinal width set to be approximately the same as the vertical width of the counter top plate 31 and the short width set to be approximately the same as the counter front plate 32. It is.

  The reinforcing plate 4 is formed by cutting an artificial marble plate material in the same manner as the counter plate 3 and joining one end to the outer surface of the front portion 22 of the sink 2 and the other side to the inner surface of the counter front plate 32. It is formed in the shape to do.

As shown in FIG. 3, the hand-washing counter 1 constituted by these members is provided with a collar portion 27 provided on the outer periphery of the upper end of the opening 26 of the sink 2 on the lower peripheral surface of the opening 31 a of the counter top plate 31. The counter top plate 31 is joined to the concave step portion 31c, and the joint portion is bonded and fixed to be integrated with the upper end of the sink 2, and then the periphery of the sink 2 is covered so as to cover the front end portion of the counter top plate 31. The upper end of the counter front plate 32 and the left and right counter side plates 33 and 34 are joined and fixed to the left and right ends, and the reinforcing plate 4 is fitted between the sink 2 and the counter front plate 32, and both sides thereof are fitted. Can be formed by a processing procedure in which the outer surface of the front portion 22 of the sink 2 and the inner surface of the counter front plate 32 are adhered to each other, and both side portions of the adhered reinforcing plate 4 are bonded and fixed to the both surfaces.
The counter front plate 32 and the left and right counter side plates 33 and 34 are bonded and fixed to the counter top plate 31 in advance, and the sink 2 is bonded and fixed to the counter top plate 31. Thereafter, the reinforcing plate 4 is attached to the sink 2 and the front of the counter. You may make it adhere and fix between the faceplates 32. FIG.

The leg 7 is constructed by assembling a stainless steel material such as a square tube or an iron material subjected to a corrosion-resistant process by welding or bolts. As shown in FIG. A plurality of reinforcing tubes 71b are erected on the upper surface to form a rear frame 71, and side frames 72, 72 formed by assembling a square tube 72a in an upward U-shape are connected to both ends of the rear frame 71. A plurality of beam rods 73c are connected to the upper ends of the side frames 72, 72 and the reinforcing pipe 71b between the upper surfaces of the front support rod 73a and the rear support rod 73b. An upper frame 73 to be supported is integrally connected.
In addition, it is preferable that the leg body 7 is provided in such a size that the counter top plate 31 has a height of about 650 mm to 750 mm in a state in which the hand-washing counter 1 is supported on the upper portion so that the child can easily use the leg body 7.

As shown in FIGS. 6 and 7, the hand-washing counter 1 is assembled to the leg body 7 by combining the receiving plate 8 that supports the sink 2 and the plywood 9 that supports the counter top plate 31 in advance on the lower surface of the hand-washing counter 1. The hand-washing counter 1 is placed on and supported by the upper frame 73 of the leg 7. Then, the hand-washing counter 1 is attached to a plurality of female screws (not shown) that are integrally embedded inside the counter front plate 32 by screwing bolts from the outside of the front support rod 73a of the leg body 7, for example. It can be performed by a procedure of screwing or bolting to the body 7 and fixing it on the leg 7.
When the hand-washing counter 1 is assembled on the legs 7, the faucet 5 connected to the water faucet is attached to the counter top plate 31, the drain tap 6 and the drainage basin 10 are attached to the drain outlet 28 of the sink 2, and the drainage basin By connecting 10 to the drainage channel, it can be used as a hand washing place.
In places where the water supply channel is on the wall and the drainage channel is laid on the floor, the hand-washing counter 1 is not bolted to the legs 7, but the hand-washing counter 1 and the legs 7 are fixed directly to the wall. It may be.

  FIG. 8 shows a hand-washing counter 1 according to another embodiment of the present invention. This sink 2 is formed by casting a synthetic marble sink 2 into a size that allows three children to be hand-washed side by side. In addition, the counter plate 3 and the reinforcing plate 4 are attached in the same manner as in the above embodiment.

Next, the verification result of the drainage performance of the water gradient provided at the bottom 21 of the sink 2 will be described.
As described above, when the sink 2 is formed horizontally so that a plurality of children can wash hands side by side, the distance from the periphery of the sink 2 to the drain 28 is long, and the amount of water flowing in the sink 2 when washing hands at the same time Will also increase. If a large amount of water that has flowed out of the faucet 5 into the sink 2 is not quickly discharged from the drain port 28, dirt easily adheres to the surface of the sink 2, and germs grow from the accumulated water and become unsanitary.
Therefore, in order to smoothly and surely discharge the water that has flowed into the sink 2, a plurality of specimens of the sink 2 having different water gradients are produced, and the drainage performance test is performed on each specimen. To confirm the proper water gradient configuration.

Each specimen was prepared by adding a water gradient to the upper surface of the bottom 21 under the following conditions.
(Specimen 1)
As shown in FIG. 9, on the upper surface of the bottom portion 21 of the sink 2, the gradient A extending from the periphery to the periphery of the drain port 28, the gradient B extending from the periphery of the drain port 28 to the vicinity of the drain port 28, A water gradient was added to the gradient C in the vicinity.
Each gradient was set such that the gradient A was 3 °, the gradient B was 15 °, and the gradient C was 74 °, and the boundary portions of adjacent gradients were connected by curved surfaces.
(Specimen 2)
A water gradient in which the gradient A and the gradient C are connected was added without providing the gradient B shown in FIG.
The gradient A was set to 3 °, the gradient C was set to 60 °, and the boundary between both gradients was connected by a curved surface.
(Specimen 3)
A water gradient with an inclination angle of 2.29 ° was provided from the periphery of the bottom 21 of the sink 2 to the drain outlet 28.
(Specimen 4)
A water gradient in which the gradient A and the gradient B are connected was added without providing the gradient C shown in FIG.
The gradient A was set to 3 ° and the gradient B was set to 6 °.

About each test piece which attached the drain plug 6 to the drain outlet 28, the fixed amount of water colored with the paint was poured down to the edge of the upper surface where the water gradient was given, and the state drained was observed visually. The results are as follows.
In the specimen 1, the drained water completely flows down to the drain plug 6, and water adheres along the joint portion between the drain plug 6 and the drain outlet 28, but in the outer peripheral portion of the drain outlet 28. There was no water left.
It was confirmed that the specimen 2 had a draining speed and the water flowed almost to the eye plate of the drain plug 6, but water remained around the seam portion of the drain plug 6 with the drain port 28. .
In the specimen 3, the water was not completely drained and remained in a ring shape around the drain outlet 28 outside the drain plug 6.
Even in the specimen 4, water remained in a ring shape around the drain port 28 outside the drain plug 6. In addition, water stayed in a ring shape along the boundary between the gradient A and the gradient B.
From the above verification results, the water gradient applied to the sink 2 of the hand-washing counter 1 can be applied to the configuration of the specimen 1 and the specimen 2 in order to improve drainage. It was confirmed that the thing was optimal.

Note that the illustrated hand-washing counter, sink, and leg are examples of the embodiment of the present invention, and the present invention is not limited to this, and other appropriate ones may be used depending on the installation location and usage form of the hand-washing counter. It can be configured in various forms.
In the said form, although the sink was shape | molded using resin which shape | molds artificial marble, you may shape | mold using other appropriate resin. You may install the hand-washing counter of this invention using legs other than the leg shown in figure. The hand-washing counter of the present invention can be installed not only in educational facilities used by children such as elementary schools but also in various facilities used by adults and indoor and outdoor public facilities such as parks.

1 hand washing counter, 2 sink, 21 bottom, 22 front, 23 rear, 24, 25 side, 26 opening, 27 collar, 28 drainage port, 3 counter plate, 31 counter top plate, 31a opening, 31c concave Step, 32 Counter front plate, 33, 34 Counter side plate, 4 Reinforcement plate, 5 Water faucet, 6 Drain plug, 7 Leg, 8 Base, 9 Plywood, 10 Drainage basin

The present invention relates to a hand-washing counter for children suitable for hand-washing and washing with water in elementary schools and the like.

In order to solve the above-mentioned problems, the present invention is for a child having a horizontally long sink that allows a plurality of children to wash their hands side by side or place a bucket in the sink for washing . At the hand washing counter
The sink has a depth of 400 mm or more by integrally molding the bottom part and the peripheral side part rising from the periphery of the bottom part by a casting method in which a synthetic resin in a fluid state is poured into a mold and solidified. A flat portion on which the bucket is placed on the bottom, and a water gradient from the periphery to the drain formed in the center of the bottom on the top of the bottom, near the drain than the gradient of the periphery of the top of the bottom A sink made of artificial marble formed with a water gradient formed by connecting a plurality of gradients so that the gradient of the gradient is increased and connecting curved edges between adjacent gradient edges ,
On the upper surface and side surface of the flange projecting outwardly provided on the outer periphery of the upper end of the opening defined by the upper end of the peripheral side portion of the sink, the concave provided on the lower peripheral surface of the opening of the countertop made of artificial marble A step top is joined, and the counter top is attached to the upper end of the sink by bonding and fixing the joint,
The front and left and right sides of the sink are surrounded by an artificial marble counter front plate and left and right side plates each having an upper end bonded and fixed to the front and left and right side ends of the counter top plate, and the sink and the front surface of the counter While having a configuration in which a plurality of reinforcing plates are adhered and fixed between the plates with both sides thereof being in close contact with the front outer surface of the sink and the inner surface of the counter front plate,
The lower surface of the bottom of the sink and the lower surface of the counter top plate are supported on the leg, and are configured to be integrally fixed to the leg .

In the child hand-washing counter having the above-described structure, a flange projecting outward is provided on the outer periphery of the upper end of the opening defined by the upper end of the peripheral side of the sink, and is substantially the same as the opening of the sink provided on the counter top plate. A concave step where the upper surface and side surfaces of the flange portion are joined is provided on the lower peripheral edge of the opening of the same shape, the concave step portion of the counter top plate is joined to the upper end portion of the sink, and the joint portion is bonded and fixed. The counter top plate is preferably attached to the sink.
Thus, by providing a flange on the outer periphery of the opening of the sink, and providing the flange to be bonded and fixed to the concave step provided on the opening of the counter top plate, the upper end of the sink is simply Since the bonding area is larger than when the upper surface is bonded to the lower surface of the opening of the counter top plate, the strength of the bonded portion increases, and the load capacity in the vertical direction of the sink and counter top plate increases, so that the sink and counter top plate Even if a heavy object is placed on top or a large impact is applied from above, a structure that is not easily damaged can be obtained.

Further, the child hand-washing counter having the above-described configuration preferably has a configuration in which a plurality of reinforcing plates are installed between the front portion of the sink and the counter front plate at intervals along the longitudinal direction of the sink.
In this way, by providing a reinforcing plate between the front part of the sink and the counter front plate, the strength against the load applied to the front of the counter front plate is increased, and even if the user leans on or hits the counter The original shape of the hand-washing counter can be maintained without deforming or damaging the counter front plate. The reinforcing plate can be formed by cutting an artificial marble plate and joining one end of the artificial marble plate to the outer surface of the front part of the sink and the other side of the artificial marble plate material to the inner surface of the counter front plate.

Furthermore, in the handwashing counter for children having the above-described configuration, the upper surface of the bottom of the sink is provided with a water gradient from its peripheral portion toward the drain outlet formed in the center of the bottom. In order to prevent water from collecting around the drain outlet to be mounted, the water gradient is preferably provided so that the gradient in the vicinity of the drain outlet is larger than the gradient of the peripheral portion on the upper surface of the bottom.
Furthermore, the water gradient on the bottom top surface of the sink is composed of a gradient A from the periphery of the bottom top surface to the vicinity of the drain port, a gradient B from the periphery of the drain port to the vicinity of the drain port, and a gradient C in the vicinity of the drain port. It is preferable to provide a plurality of gradients and to increase the gradient of these gradients (A <B <C) as they approach the drain outlet rather than the peripheral portion on the bottom upper surface.
According to this, if there is a water gradient so that the gradient in the vicinity of the drainage port is larger than the gradient in the peripheral part on the upper surface of the bottom of the sink, it flows down toward the drainage port on the gradient in the peripheral part. The water is energized as it passes through the gradient near the drain, increasing the flow rate and flowing down to the drain, ensuring that the water that has flowed out of the faucet into the sink does not stay around the drain. It can be drained. If the slope is gradually increased and the gradient is provided in three or more stages, the water that has gained momentum after passing through the previous stage is further increased by the next stage, and the flow rate is increased. It can be made to flow down to the drain plug attached to the drain port.
In this way, the sink drainage function of the sink is enhanced by providing a multi-stage water gradient on the bottom upper surface of the sink, and the water that has flowed out of the faucet into the sink is smoothly flowed toward the drain outlet to ensure that the drain outlet Therefore, it is difficult for water stains to adhere to the sink surface, and there is no stagnation of water that tends to be a breeding source of germs, and the hand-washing counter can be kept clean and hygienic.
In addition, if a crease appears on the boundary of each gradient that forms a water gradient on the bottom upper surface of the sink, it will cause water flow in this boundary portion and cause water to stay on the sink, It is preferable that the edges of adjacent gradients are connected by curved surfaces. Further, the surface of the sink is preferably rough enough to be obtained by polishing with # 320 sandpaper so that water flows smoothly from the periphery of the sink to the drain.

Claims (5)

In a children's hand-washing counter with a horizontally long sink that allows multiple children to wash hands side by side,
The sink is formed by integrally molding the bottom part and the peripheral side part rising from the peripheral edge of the bottom part by a casting method in which a synthetic resin in a fluid state flows into a mold and solidifies, and has a depth of 400 mm or more. It is a sink made of synthetic resin formed and molded,
A child hand-washing counter having a structure in which a counter top plate is attached to an upper end portion of the sink, and a front portion and left and right side portions of the sink are surrounded by a counter front plate and left and right side plates. A flange projecting outward is provided on the outer periphery of the upper end of the opening defined by the upper end of the peripheral side of the sink, and on the lower surface of the peripheral edge of the opening substantially the same shape as the opening of the sink provided on the counter top plate, A concave step portion is provided to which the upper surface and side surfaces of the flange portion are joined;
2. The child according to claim 1, wherein a concave step portion of the counter top plate is joined to an upper end portion of the sink, and the counter top plate is attached to the sink by bonding and fixing the joint portion. Hand washing counter.   The mounting structure according to claim 1, wherein a plurality of reinforcing plates are installed between the front portion of the sink and the counter front plate at intervals along the longitudinal direction of the sink. Hand washing counter for children.   A water gradient is applied to the upper surface of the bottom of the sink from the periphery thereof toward the drain outlet formed in the center of the bottom, and this water gradient is larger in the vicinity of the drain outlet than the gradient of the periphery of the upper surface of the bottom. The hand-washing counter for children according to any one of claims 1 to 3, wherein the hand-washing counter has a structure provided as described above. 5. The structure according to claim 4, wherein a water gradient composed of a gradient A, a gradient B, and a gradient C (A <B <C) is attached to the upper surface of the bottom of the sink from the periphery to the drain outlet. The children's hand-washing counter.

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