JP2019054987A - Transparent bathtub with decoration function - Google Patents

Abstract

To provide a transparent bathtub having an area where liquid or viscous liquid can flow in a side wall or a bottom plate of a bathtub structure, in which movement is given to a decorative object in the area, and thereby providing the bathtub that enables enjoying the rendering effect such as patterns drawn on the decorative object during bathing.SOLUTION: A transparent bathtub is constituted of a translucent bathtub, a fluid liquid and a decorative object. The translucent bathtub has a flow area for making the fluid liquid to flow. The fluid liquid and the decorative object are mixed in the flow area. The decorative object in the fluid liquid is moved by a flow mechanism for making the fluid liquid of the flow area to flow from the outside. The above matter is made a basic structure. The flow mechanism may employ means for giving the movement to the decorative object in the translucent bathtub by using convection on a temperature change with the decorative object having the specific gravity different from the fluid liquid.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a technique for a transparent bathtub, and more specifically, a transparent resin is used in a separately installed bathtub called a catfoot bathtub, and a flow path for liquid to flow in a material side wall is formed. In addition, the present invention relates to a technique of a bathtub that allows a decorative object to be moved by applying external heat, and to enjoy bathing by light projection or the like.

  The Japanese spend 27 minutes for men and 34 minutes for women on a daily basis, and the bathing time is about 15 minutes, with the body warming up in the hot water stored in the bathtub, especially teens. There is a statistic that young women who have been in a bathtub for a long time of 17.9 minutes (2011 Basic Survey on Social Life (Ministry of Internal Affairs and Communications)). On the other hand, bathing is intended to clean the body, so it is often done simply with a shower, and in Europe and the United States, which often does not have a bathtub itself in the bathroom, awareness about bathing It can be said that the way of thinking is very different.

  Due to such differences in customs, the bathtubs in Japan and the bathtubs in Europe and America differ greatly in structure, and the structure of the bathroom itself is also different. Usually, to install a floor-standing bathtub with cat feet, it is basically a construction method, so unlike a unit bath that only assembles a module, you can hit a mortar in a waterproof room, A bathroom that can be tiled or finished by a wet method is required. In the construction by the wet method, it is possible to make a stylish appearance by making use of the personality of the space in the bathroom by making a custom order, and it is considered that it becomes a dream space especially for women.

  However, compared to the unit bath, there are drawbacks that a larger space is required and that the bathroom space is easier to cool, and in the Japanese climate, insulation is packed firmly on the floor and walls, floor heating and It can be said that many problems remain, such as the use of bathroom heating, which requires a large expense for installation. Although it can be said that it is difficult to prepare for an existing small house, it is still very popular, and the long-awaited clawfoot bathtub has a medieval romantic design that makes an impression as a movie or drama scene. Therefore, in newly built custom-built houses, luxury hotels, and other relaxation-related facilities, there is a possibility that the number of bath-type bathing facilities will increase in response to customer demand.

  Clawfoot bathtubs are generally recognized as typical bathtubs in Victorian bathrooms, and cannot be retreated. Is a heavy, narrow Japanese-style bathroom that does not match functionally and is difficult to reach even if it is stylish. Therefore, it can be said that there is a need for a technology that can solve such problems and provide a meaningful and meaningful bathing environment.

  Various technical proposals have been made by other than the present inventors to solve such problems. For example, Patent Document 1 discloses a technique in which the name of the invention is “a surface decoration bathtub, a surface decoration method for a bathtub, and a method for manufacturing a bathtub having a surface decoration”, and is a known technique (see Patent Document 1). ). Specifically, the objective is to “provide a bathtub with a colorful and varied surface decoration at a low cost”, and the solution is “a polishing step for polishing the surface of the bathtub to form a polishing surface, and an epoxy Apply an acrylic resin to form an undercoat layer, and place decorative objects such as shells and flowers, and apply a transparent polyester resin or acrylic resin to form an embedded layer in which the decorative objects are embedded. A bathtub having a surface decoration is obtained by a mold process and an overcoating process in which a heat-resistant epoxy acrylic resin is applied to form a protective layer. " However, since the method of embedding decorations in the bathtub is adopted, it is expected that the user gets used to the fixed decorations over time and gets bored. Therefore, it cannot be said that it is a bathtub that can enjoy bathing indefinitely, and has not yet solved the above problems.

  Further, Patent Document 2 discloses a technique in which the name of the invention is “a method of forming a flow pattern in a plastic bathtub”, which is a known technique (see Patent Document 2). Specifically, “The flow pattern can be formed in any shape, and the pattern in each bathtub can be formed uniformly and with good reproducibility, and the pattern can be prevented from being discolored by hot water. “Provide a method for forming a flow pattern in a plastic bathtub that can express a deep sense of depth”. The solution is “vacuum molding of a transparent acrylic plate to obtain a blank bathtub. A base layer containing a filler is formed on the back surface of the base, and a fiber bundle impregnated with a thermosetting colored resin is placed along a positioning jig fixed to the surface of the base layer, and the above base layer is processed. By fixing to the blank tub, an original pattern is formed, and a reinforcing layer is laminated on the surface of the base layer and the fiber bundle to obtain a bathtub ". However, in such an invention, the design of the flow once designed is fixed, and the present invention such as the effect of transmitting light to the bathing bath and the movement of the design are the subject of the present invention. The above-mentioned problems have not been solved.

  Patent Document 3 discloses a technique in which the title of the invention is “an improved structure of a patterned bathtub”, which is a known technique (see Patent Document 3). Specifically, it is intended to “provide a bathtub printed with a floral pattern or a geometric pattern” and “a substantially flat surface on the back side of a transparent acrylic resin molded product molded into a predetermined shape, An adhesive layer positioned on the flat surface and positioned on the flat surface, a printed layer having a predetermined pattern formed on the adhesive layer, It is characterized by comprising an opaque primer layer formed on the back surface of the acrylic resin molded product including the printed layer, and an FRP reinforcing layer formed thereon. " However, in the related invention, like the above-described Patent Document 2, the flow pattern once designed in the related invention is fixed, and the effect of transmitting light to the bathing tub and the pattern The special effects of the present invention, such as giving movements, cannot be exhibited, and the above problems have not been solved.

Japanese Patent Application Laid-Open No. 2004-344531 JP 2003-127241 A JP-A-10-168

  The present invention allows the user to visually enjoy the pattern drawn in the transparent bathtub during bathing, or to move the pattern to the movement and enjoy a further enhanced effect during bathing. Providing a bathtub is an issue.

  The present invention is composed of a translucent bathtub, a fluid liquid, and a decoration, and the translucent bathtub has a fluid region in which the fluid liquid flows, and the fluid region has the fluid liquid. The ornament is mixed, and the ornament in the fluid liquid is moved by a fluid mechanism that causes the fluid liquid in the fluid region to flow from the outside.

  Moreover, this invention can also employ | adopt the structure which used the acrylic resin for the said translucent bathtub.

  The present invention can also employ a configuration in which the fluid liquid has its viscosity adjusted by a viscosity adjusting agent.

  In the present invention, the fluid mechanism causes the fluid liquid in the fluidized region to flow by using the deformation of the floor portion by pressing the floor portion of the translucent bathtub by a human load, It is also possible to adopt a configuration that gives movement to the decorative object by the flow.

  In the present invention, the flow mechanism moves to the ornament having a specific gravity (weight ratio per unit volume) different from that of the flowable liquid by using convection generated by changing the temperature of the flowable liquid. It is also possible to adopt a configuration that gives

  In addition, it is also effective for the present invention to employ a configuration in which the decorative object has a specific gravity adjusted by an adjustment member.

  According to the transparent bathtub having a decorative function according to the present invention, it is possible to enjoy the beauty of the pattern projected by transmitting light that could not be made of enamel, metal, or non-translucent resin. Demonstrate the excellent effect of being able to.

  Moreover, according to the transparent bathtub provided with the decoration function which concerns on this invention, the outstanding effect of projecting the motion of living things like a goldfish on a wall etc. and enjoying the change of the motion visually is exhibited.

  Further, according to the transparent bathtub having a decorative function according to the present invention, it is possible to manufacture it in an extremely light weight as compared with the conventional product made of enamel, it is easy to move a little, and it is required for a bathroom required for a bathtub type. This provides an advantageous effect that cannot be obtained with a conventional enamel-type bathtub, which can be taken in and out even in a small bathroom.

It is basic composition explanatory drawing which shows the basic composition of the transparent bathtub provided with the decoration function which concerns on this invention. It is a flow mechanism explanatory drawing explaining the flow generation principle by the flow mechanism which concerns on this invention. It is Example explanatory drawing which shows the implementation state of the transparent bathtub provided with the decoration function which concerns on this invention. It is an Example explanatory drawing explaining the fluid liquid of different specific gravity based on this invention. It is an Example explanatory drawing explaining the Example which draws the pattern which concerns on this invention on a wall etc. with a projector.

  The present invention is characterized in that a translucent resin material is used for a bathtub, a flow region 40 is provided therein, and the flowable liquid 20 filled in the flow region 40 and the decorative object 30 are moved. To do. Hereinafter, description will be given based on the drawings. In addition, the technical principal part of this invention is not limited to the shape, dimension, ratio, etc. which were shown in this invention, It can change within the range which exhibits the technical effect of this invention.

  FIG. 1 is a basic configuration explanatory view showing a basic configuration of a transparent bathtub 1 having a decorative function according to the present invention. Fig.1 (a) is a top view of the transparent bathtub 1 provided with the decoration function which concerns on this invention, FIG.1 (b) is a front view of the transparent bathtub 1 provided with the decoration function which concerns on this invention, FIG.1 (c) is a left view of the transparent bathtub 1 provided with the decoration function which concerns on this invention, FIG.1 (d) is a right view of the transparent bathtub 1 provided with the decoration function which concerns on this invention. is there.

  The decorative object 30 is a member that exhibits a decorative function by a pattern or shape drawn on a material in consideration of the specific gravity and viscosity of the fluid liquid 20. The shape of the pattern is not limited to the goldfish and maple leaves shown in FIG. 1. For example, cherry blossoms in spring, fireworks in summer, and snow as shown in FIG. For example, it can be used as a decorative object 30 that expresses the desired decoration.

  FIG. 2 is a flow mechanism explanatory diagram illustrating the flow generation principle by the flow mechanism 50 of the transparent bathtub 1 having the decorative function according to the present invention. FIG. 2A is a cross-sectional view showing a state in which the flow region 40 is communicated and connected from the both side wall portions 11 to the floor portion 12, and FIG. It is sectional drawing which shows the state provided independently.

  In FIG. 2A, the flow region 40 configured inside the floor portion 12 has a volume in the flow consideration region 40 due to internal stress in which the floor portion 12 is deformed or downwards depending on the weight of the person when taking a bath. This shows that a change or a pressure change occurs, and the decorative object 30 can be moved using the fluid liquid 20 as the working fluid on the left and right side walls 11. Moreover, in the structure shown in FIG.2 (b), although the pressure and deformation | transformation from the floor part 12 cannot be utilized, from the lower part to the upper part by inflow of the hot water and water with which the inside of a bathtub is filled, or the hot water which was cooked again The bathtub of the aspect using the flow mechanism 50 using the temperature change which heads is shown.

  The translucent bathtub 10 is not only shown in the figure as shown in FIG. 1 but is not shown in the drawing, but the structure can be applied to a bathtub of a unit bath. The shape is not particularly limited, and may be any shape, size, or structure that enables bathing. Moreover, it is necessary for the raw material of the translucent bathtub 10 to have physical characteristics as the first condition, chemical characteristics as the second condition, and mechanical characteristics as the third condition. Specifically, it has high translucency as physical properties, chemical resistance such as soap and shampoo as chemical properties, and safety and durability as mechanical properties. It is that.

(First condition (translucency))
Therefore, when examining the translucency that is the first condition, in the case of using a resin, whether or not it has translucency is roughly classified according to whether it is a crystalline resin or an amorphous resin, and the translucency depends on the difference. In general, a crystalline plastic has a crystal part and an amorphous part mixed inside the plastic, and light is irregularly reflected at the boundary due to a difference in refractive index, so that the translucent bathtub 10 of the present invention becomes opaque. It can be said that it is not suitable for any material. Therefore, a material having excellent strength is selected from amorphous resins that have a uniform refractive index, transmit light, and are nearly transparent.

  In particular, as resins having excellent translucency, PC (polycarbonate: polyca (transmittance 89%)), PET (polyethylene terephthalate: pet (transmittance 90%)), PVC (polyvinyl chloride: vinyl chloride (transmittance 82%) )), And PMMA (polymethylmethacrylate: acrylic (transmittance 93%)) (hereinafter referred to as “acrylic”).

  The above four types of resins exemplify resins having a transmittance exceeding 82%, and in particular, the acrylic having a transmittance of 93% has a translucency exceeding the transmittance of 92% of the glass. It can be said that it is a resin material that can be evaluated to satisfy the first condition as the material used for the most.

(Second condition (chemical resistance))
Next, the second condition, chemical resistance, will be examined. Common resins are resistant to acids, but are often attacked by strong alkalis and organic solvents. However, some resins have low alkali resistance and whiten when contacted with alkaline substances. There are few resins that do not whiten even with strong alkalis exceeding pH 11, and the most alkali-resistant material is acrylic. In addition, there is a hard material with improved chemical resistance in the same acrylic, and if this hard material is used, it will not be affected by solvents such as toluene, acetone, methyl ethyl ketone, etc. Is desirable.

  In addition, the influence of chemical changes caused by chemicals such as alcohol, limonene, and surfactants must also be considered. Alcohol is used in hair tonics, limonene is used in cosmetics such as cosmetic creams, and surfactants are chemicals used in shampoos and soaps. The transparent bathtub 1 having a decorative function according to the present invention needs to have chemical characteristics that are not affected by these chemicals.

  PC has low hardness and is damaged when washed with a sponge or brush with soap. When PET touches an alkaline substance, the alkaline substance attracts hydrogen ions and causes a chemical reaction in the same way as an acidic substance. There is. On the other hand, acrylic is a material excellent in chemical resistance among resin materials, and such problems do not occur when acrylic is used.

(Third condition (safety))
Next, the third condition, safety and durability, will be examined. Such safety and durability depend on the mechanical properties of the material. Among various resins, acrylic has mechanical properties necessary for a bathtub, with a tensile strength of 48 to MPa, a compressive strength of 73 to 125 MPa, and a bending strength of 73 to 131 MPa.

  A resin that can be said to be the most suitable resin as a material satisfying all of the first to third conditions is considered to be acrylic.

  The fluid liquid 20 is a liquid or a viscous material that is filled in a fluid region 40 provided in the translucent bathtub 10.

(specific gravity)
When water is used for the fluid liquid 20, the specific gravity at 4 ° C. is 1, and the specific gravity at around 40 ° C., the temperature at which a person bathes, changes to 0.992, and the specific gravity that changes due to this temperature difference Due to the relationship between the difference and the difference in specific gravity at which the decorative object 30 changes due to the same temperature difference, the decorative object 30 can be raised and lowered.

  In addition, the adjustment of the specific gravity, when water is used for the fluid liquid 20, the adjustment member 31 having a large specific gravity (such as metal powder) is attached to the specific gravity of water so that the decorative object 30 sinks. Although it is possible to make the decorative object 30 act in the floating direction by attaching the adjustment member 31 having a small specific gravity (such as oil or fat), the adjustment method is not limited to the adjustment method, and other methods such as temperature adjustment are possible. Even so, it is only necessary to use a means that allows the specific gravity to be adjusted.

(viscosity)
In addition to using the change in specific gravity related to the temperature difference as described above, it is considered effective to use viscosity for adjusting the speed of ascent and descent of the ornament 30. Frictional force or shear stress acts on the ornament 30 in the fluid fluid 20 having viscosity, and it becomes possible to adjust the change in speed with respect to the moving distance. For example, the ornament in the case where a gentle movement is desired. 30 and the ornament 30 when it is desired to move quickly, the viscosity can be adjusted by changing the viscosity by the viscosity adjusting agent 21.

  The viscosity adjusting agent 21 is preferably a thickening polysaccharide such as paraffin or xanthan gum, which is viscous when mixed in water, and is harmless to the human body.

  The flow region 40 is a region in which the fluid liquid 20 filled in the translucent bathtub 10 can flow. In addition, the structure which arrange | positions the both sides of the bathtub shown in FIG.2 (b) separately, and the structure which connects both sides from the bottom part shown to Fig.2 (a) can be considered for the flow area | region 40. In the flow region 40, the decorative object 30 is lowered if the specific gravity of the decorative object 30 is larger than the specific gravity of the filled fluid liquid 20, and floats if the specific gravity is small. It will be necessary.

  The flow mechanism 50 is considered to be the simplest method in which the decoration 30 is moved based on the temperature change of the flowable liquid 20 and on the other hand, the movement is generated by deforming the floor by a human load. . Other than the configuration that generates convection due to temperature change and the configuration that creates the flow by obtaining the discharge force from the deformation caused by applying pressure, although not particularly shown in the drawing, the pressure generator such as a pump, Alternatively, the same effect can be exhibited even in a configuration in which a flow is created in the flow region 40 by flowing water from the faucet. However, the present invention has a technical feature that a flow field is created in the flow region 40 by a simple and primitive idea without using these mechanical components.

  FIG. 3 is an embodiment explanatory view showing an implementation state of the transparent bathtub 1 having a decorative function according to the present invention. Fig. 3 (a) is a plan view of the transparent bathtub 1 having the decorative function according to the present invention, and Fig. 3 (b) is a front view of the transparent bathtub 1 having the decorative function according to the present invention. FIG.3 (c) is a left view of the transparent bathtub 1 provided with the decoration function which concerns on this invention, FIG.3 (d) is a right view of the transparent bathtub 1 provided with the decoration function which concerns on this invention. is there.

  3 (b), 3 (c), and 3 (d), a decorative object 30 in which a snowman having a large specific gravity and a snow crystal having a small specific gravity are designed in the flow region 40. However, depending on the specific gravity relationship with the fluid liquid 20, it is possible to create a state in which a function capable of specifying whether it floats or sinks is exhibited.

  For example, a decorative object 30 in which a snowman is drawn on a film having a specific gravity greater than about 40 ° C. at the time of bathing the fluid liquid 20 and a decorative object 30 in which snow crystals are designed on a film having a small specific gravity are used. Thus, the snowman is always located at the bottom, and even if it rises by convection, it will move down afterwards, while the decoration 30 designed with snowflakes shows the action of rising and makes the movement faster. In the transparent bathtub 1 having the decoration function according to the present invention, the position and the operation speed of the decorative object 30 can be freely set by lowering the viscosity of the fluid liquid 20 if desired and by increasing the viscosity if desired to move slowly. Can be adjusted.

  In addition, in the same decorative object 30, the adjustment member 31 having a light specific gravity and partly the adjustment member 31 having a heavy specific gravity are attached to the same decorative object 30, so that the direction is always in a desired direction in the flow region 40. It is possible to arrange the ornament 30 in a state.

  FIG. 4 is a function explanatory diagram for explaining the arrangement of the decorative object 30 in the transparent bathtub 1 having different decorative functions according to the present invention at a specific position and the adjusting means for the operation speed. FIG. 4A shows a case where the fluid liquid 20 is configured by only one kind of specific gravity, and FIG. 4B shows a structure where the fluid liquid 20 is hierarchically configured by a plurality of different specific gravity. Shows the case.

  The decorative object 30 in FIG. 4A is placed in an upper layer, a middle layer, and a lower layer, and is in a stable state. As an example of making such an arrangement state, the specific gravity of the decorative object 30 is adjusted to the same specific gravity as the specific gravity of the fluid liquid 20 and the decorative liquid 30 includes the fluid liquid 20 whose sugar content is adjusted to be high to increase the specific gravity. If the specific gravity is reduced using oil and oil, the ornament 30 can be suspended in the arrangement as shown in FIG.

  As shown in FIG.4 (b), in the transparent bathtub 1 provided with the decoration function which concerns on this invention, the decoration comprised by the fluid liquid 20 of different specific gravity in the flow area | region 40, and specific gravity same as each specific gravity. By filling the object 30, it becomes possible to float so that the decorative object 30 having a specific gravity is arranged for each layer having a different specific gravity.

  FIG. 5 is an embodiment explanatory view for explaining an embodiment in which a pattern according to the present invention is drawn on a wall or the like by a projector. Fig.5 (a) shows the structure which forms the whole shape of the light projection bathtub 10 which concerns on this invention in convex lens shape, FIG.5 (b) forms the side wall part 11 of the light projection bathtub 10 in convex lens shape. In any case, the light is condensed using the refraction of light by the curvature, and the effect of drawing the decorative object 30 such as a vivid pattern on the wall or the like is exhibited. In addition, it is beneficial to apply this effect not only to a bathtub but also to furniture such as a bathroom wall, door, table, or chest.

  In FIG. 5A, in the case where the flow region 40 is provided so as to surround the entire circumference of the bathtub, if a region connected to the floor 12 is provided, it is considered that the strength is weakened. Therefore, as shown in FIG. 5B, a configuration in which the flow region 40 is provided only on the side wall portion 11 may be appropriately arranged according to the strength, size, type of the ornament 30, and the like. It is desirable to adopt. Although not shown in the drawings, a drain for drainage is provided in the floor 12 and a filling port for filling the decoration 30 and the fluid liquid 20 in the flow region 40 is provided in the upper part, so that the season and mood can be adjusted. In addition, it is possible to adopt a configuration in which the ornament 30 can be freely replaced.

  By irradiating light from the outside to the transparent bathtub having the decoration function according to the present invention, not only the light silhouette of the decoration 30 is drawn in the bathroom, but also the operation is performed by the effect of moving it slowly. Healing effects such as bathing while having fun can be obtained, demand for facilities providing relaxation and luxury hotels can be predicted, and industrial applicability is considered high.

DESCRIPTION OF SYMBOLS 1 Transparent bathtub 10 with a decoration function Translucent bathtub 11 Side wall part 12 Floor part 20 Fluidity liquid 21 Viscosity adjusting agent 30 Decoration thing 31 Adjustment member 40 Flow area 50 Flow mechanism

Claims (5)

A translucent bathtub (10);
A flowable liquid (20);
The decoration (30) and
The translucent bathtub (10) has a flow region (40) for flowing the flowable liquid (20),
Mixing the flowable liquid (20) and the ornament (30) into the flow region (40);
A decoration function characterized by moving the decoration (30) in the fluid liquid (20) by a fluid mechanism (50) that causes the fluid liquid (20) in the fluid region (40) to flow from the outside. A transparent bathtub (1). The transparent bathtub (1) provided with the decorative function according to claim 2, wherein an acrylic resin is used for the translucent bathtub (10). The transparent bathtub (1) having a decorative function according to claim 1 or 2, wherein the fluid liquid (20) is one whose viscosity is adjusted by a viscosity adjusting agent (21). The flow mechanism (50)
The fluid liquid (20) in the flow region (40) is utilized by utilizing the deformation of the floor portion (12) by pressing the floor portion (12) of the translucent bathtub (10) with a human load. Fluidize
The transparent bathtub (1) having a decorative function according to any one of claims 1 to 3, wherein the decorative object (30) is moved by the flow. The flow mechanism (50) utilizes the convection generated by changing the temperature of the flowable liquid (20), and the decoration has a specific gravity (weight ratio per unit volume) different from that of the flowable liquid (20). The transparent bathtub (1) having a decorative function according to any one of claims 1 to 4, wherein the object (30) is moved.