JPH11113771A - Bathtub - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain bathing feeling close to a 'direct heating' bath, enabling to warm even the core of a body by supplying hot water of prescribed high temperature into a hollow part formed by double-structuring the bottom surface part or the wall surface part of a bathtub main body separately from hot water for the bathtub main body. SOLUTION: A bottom member 2 separated from the bathtub main body 1 covering the bottom surface part 1a is additionally provided at the stage part 1b provided with a prescribed height from the part 1a formed at the outer peripheral part of the bottom surface part 1a of the main body 1. Thereby, a hollow part 3 with previously set space capacity is formed between the member 2 and the part 1a of the main body 1. Then, at the time of using, hot water set to a bathing optimum temperature is supplied from an opening part on the upper surface of the main body 1 through a water feeding pipe 12 by a boiler 7. In addition, hot water heated by boiler 7 at a high temperature heated by boiler 7 is supplied for the part 3 from a hotwater feeding pipe 8 at need and circulated to the boiler 7 from the part 3 through a circulation pipe 9 and at this time, unnecessary air within the part 3 is discharged to outside from an air outlet pipe 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bathtub, and more particularly to a bathtub body having a double-walled bottom surface and the like, having a hollow space having a predetermined space volume formed inside the bottom surface and the like. By supplying hot water of a predetermined high temperature separately from the hot water of the bathtub main body, it can be heated from the bottom of the bathtub, and it is similar to a so-called direct-fired bath where the fire is heated from below and the hot water is directly boiled The present invention relates to a novel bathtub that can provide a comfortable bath.

[0002]

2. Description of the Related Art In Japan, a traditional wooden bath or an iron Goemon bath is used as a general household bath, and recently, a tiled bath, a stainless steel bath, a casting enamel bath, and an artificial marble bath are used. , Artificial resin bathtubs, poly baths and the like are generally employed. Most of these home tubs are often manufactured by bath tub manufacturers and provided to users, and various types of bath tubs are known, including Japanese style, Western style, and Japanese / Western style.

[0003] The Japanese style is a rectangular bathtub generally used in Japan, the Western style is a relaxing type in which the feet are stretched and used diagonally, and the Japanese style is a bathtub with an intermediate structure. In both cases, gas water heaters or oil water heaters are frequently used for hot water supply using a circulating boiler.
Means for supplying and circulating hot water from circulation hot water supply ports installed above and below the side of the bathtub, or hot water supply means using a hot water tap with a cock provided above the bathtub are employed.

On the other hand, in the case of large baths such as hot springs, hotels and public baths, large tubs having luxury by using tiles, marble, rock and concrete are used in addition to wooden tubs. Have been.

[0005]

In the case of a household bathtub, as described above, means for supplying hot water from a circulation hot water supply port in the bathtub using a circulation boiler, and a bathtub using a hot water tap with a cock. Hot water supplied from the opening is used, the hot water supplied rises upward from the hot water supply port or stays upward, so in any case the hot water rises in the bathtub when entering the hot water. Therefore, although the upper part of the bathtub is at an appropriate temperature, the temperature of the hot water near the bottom part of the bathtub is usually relatively low.

In recent years, gas water heaters and oil water heaters have been provided with a reheating function for increasing the temperature of the hot water during bathing, and usually deal with a decrease in the temperature of the hot water. Since the hot water supplied by reheating is still supplied from the hot water supply port in the bathtub, it rises to the top of the bathtub. If the top of the bathtub is at an appropriate temperature, the temperature at the bottom is not enough, If you try to keep the hot water temperature enough, the upper part will be too hot. Of course, by stirring the hot water in the bathtub, it is possible to make the temperature to a certain degree homogeneous,
The bottom can never be hotter than the top.

On the other hand, an old direct-fired bath is heated directly from below, so that the temperature of the bath at the bottom of the bathtub is higher than that at the top, and the bottom of the bathtub is warmer and warms from the core of the body. It can be much more comfortable than a recent bath in which the temperature of the hot water at the top is higher than the temperature at the bottom, and
Many people miss this open-fired bath because they do not have to cool the water. Or recently, there are many people who do not know the comfort of taking this open fire bath.

[0008] In the case of a hot spring or a large public bath in a hotel, a hot water supply mechanism or a water supply plug is usually provided, but the temperature of the hot water near the bottom of the bathtub is lower than that of the upper part of the bathtub. The low is almost the same as in a home tub.

In view of the above, the present invention has been made in view of the above, and is intended to prevent a decrease in bathing sensation caused by hot water rising in the bathtub and the temperature of the hot water near the bottom of the bathtub being relatively low. To provide a bathtub that can be warmed directly from the bottom, which has been used since ancient times, and the bottom of the bathtub is warmer and can be warmed from the core of the body, similar to a `` direct fired '' bath It is intended for.

[0010]

According to the present invention, in order to achieve the above object, a bottom portion or a wall portion of a bathtub body has a double structure, and a hollow portion having a predetermined space volume is formed. A tub for supplying hot water of a predetermined high temperature separately from the hot water of the bathtub main body, and a bottom member separate from the bathtub main body attached to the bottom portion of the bathtub main body, so that the bathtub main body and the bottom member Forming a hollow portion having a predetermined space volume, a predetermined high-temperature hot water in the hollow portion, a tub for supplying hot water separately from the hot water of the bathtub body, and a plurality of bottom or wall portions of the bathtub body. As a double structure having an opening, an open hollow portion having a preset space volume is formed, a hot water flow pipe is disposed in the hollow portion, and a predetermined high-temperature hot water is supplied into the bathtub body. It is provided on the basis of a bathtub that supplies hot water separately from hot water. As the bathtub body, a bathtub selected from stainless steel, cast enamel, artificial marble, wooden, artificial resin, polybass, and steel plate enamel is used.

A pipe having a hollow portion therein is disposed between the vertical wall for forming the bathtub main body and the bottom surface and disposed along the vertical wall at the bottom surface of the bathtub main body.
There is provided a bathtub for supplying hot water of a predetermined high temperature in the pipe separately from the hot water of the bathtub body. A structure in which this pipe is arranged at a position surrounding the bottom of the bathtub as a whole, and a fin for retaining the water is attached to a lower end of the pipe, and the fin is attached to a concrete on the bottom of the bathtub body. Provide a configuration that is fixed to the base.

Further, there is provided a bathtub in which a pipe having a hollow portion is disposed inside a vertical wall for forming a bathtub body, and a predetermined high-temperature hot water is supplied inside the pipe separately from the hot water of the bathtub body. In addition, the present invention provides a configuration in which the pipe is disposed on the entire circumference of the vertical wall of the bathtub, and a configuration in which the pipe is disposed so as to protrude or is embedded. Then, a predetermined high-temperature hot water to be supplied separately from the hot water of the bathtub body is circulated by a boiler having a reheating function, and the hot water is supplied to the bathtub body from an opening on the upper surface of the bathtub body. You are going to.

According to the bathtub having such a configuration, hot water can be supplied into the bathtub main body by operating the boiler and supplying hot water from the opening of the bathtub main body to the bathtub main body. A predetermined high-temperature hot water, if necessary, in the hollow part formed with the wall part as a double structure,
By supplying and circulating hot water separately from the hot water in the bathtub body,
The temperature of the hot water near the bottom of the bathtub can be higher than that of the upper part of the bathtub, and it can be warmed up from the bottom.It is close to the direct fired bath used in Japan since ancient times. It gives you a feeling of bathing that cannot be obtained by ordinary "reheating", which is heated from the core of your body. In addition, the hot water supplied to the hollow portion also heats the hot water in the bathtub body itself, and can also exert the function of reheating. Moreover, because there is no contact with hot water in the bathtub body,
Hot water in the bathtub body does not come in contact with dirt in the boiler piping, and the hot water is clean.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a bathtub according to the present invention will be described below with reference to the drawings. FIG. 1 is a side sectional view showing a first embodiment of a bathtub adopting the present invention, in which 1 is a bathtub body, which is made of stainless steel, cast enamel, artificial marble, wooden, artificial. It is selected from those provided as bathtub materials such as resin, polybass, and steel plate enamel. 1a is a bottom portion of the bathtub body 1, and an outer peripheral portion of the bottom portion 1a has a bottom portion 1a.
A step 1b having a predetermined height from a is formed.
The step portion 1b is provided with a bottom member 2 separate from the bathtub body 1 having a predetermined area for covering the bottom portion 1a. The bottom member 2 is made of a stainless steel plate or a steel plate enamel having a predetermined plate thickness necessary for maintaining the strength of the bathtub, or other material suitable for the bathtub. 1b. Also,
In order to maintain the strength of the bottom member 2, an auxiliary supporting member may be interposed between the bottom member 2 and the bottom member 1a. A hollow portion 3 having a predetermined space volume is formed between the bottom member 2 and the bottom portion 1a of the bathtub body 1. That is, the lower part of the bottom member 2 has a double structure, and the formed hollow part 3 is
This is a space for supplying hot water different from hot water.
The hollow portion 3 may be extended to the wall portion 1c.

Reference numeral 1c denotes a wall surface of the bathtub body 1. A step (not shown) similar to the step 1b of the bottom surface 1a is formed on an outer peripheral portion inside the wall 1c. A hollow portion having a predetermined space volume is formed between the wall member and the wall portion 1c of the bathtub body 1 by attaching the wall member of
Hot water different from the hot water of the bathtub body 1 can be supplied to this hollow portion. Further, at that time, it is also possible to communicate with a hollow portion formed by the bottom member 2.

The bottom portion 1a or the wall portion 1c of the bathtub body 1 has a double structure to form a hollow portion having a predetermined space volume, and a predetermined high-temperature hot water is filled in the hollow portion. Hot water may be supplied separately from hot water.

Reference numeral 5 denotes a drain port of the bathtub main body 1 formed by the bottom member 2 and the bottom surface portion 1a, and reference numerals 6 and 6 denote supports for the bathtub main body 1. Reference numeral 7 denotes a boiler for hot water supply. As the boiler 7, either a circulation type gas water heater or an oil water heater is used. 8 is a hot water supply pipe for supplying high-temperature hot water from the boiler 7 to the hollow part 3, 9 is a circulation pipe for sending hot water from the hollow part 3 to the boiler 7, 10 is an air vent pipe from the hollow part 3,
Reference numeral 11 denotes a drain pipe drawn out of the hollow portion 3. Further, a hot water supply pipe 12 is drawn out from the boiler 7 toward the upper side of the bathtub body 1, and a cock 13 is attached to a middle part of the hot water supply pipe 12.

According to the first embodiment, when the boiler 7 is operated and the cock 13 is opened at the time of use, hot water set to the optimum bathing temperature is supplied to the opening of the upper surface of the bathtub body 1 through the hot water supply pipe 12. It is supplied into the bathtub body 1 from the section. Then, if necessary, high-temperature hot water obtained in the boiler 7 is supplied from the hot water supply pipe 8 to the hollow portion 3, circulated from the hollow portion 3 to the boiler 7 through the circulation pipe 9, and refluxed. Accordingly, high-temperature hot water obtained by the boiler 7 is continuously supplied and circulated into the hollow portion 3 as necessary. Excess air in the hollow portion 3 is discharged from the air vent tube 10 to the outside. The supply of high-temperature hot water into the hollow portion 3 may be performed continuously or arbitrarily by providing a switch. Also, the temperature of the hot water to be supplied may be selected to be higher than the temperature of the hot water in the bathtub body 1, and since the bather does not come in direct contact with the hot water, the temperature of the hot water cannot be supplied as a conventional reheating temperature. It can also be.

Therefore, the temperature of the hot water near the bottom of the bathtub body 1 becomes high, and it is in a state close to a so-called "open-fired" bath which has been used in Japan since ancient times, and is heated from the core of the user's body. A feeling of bathing is obtained. In addition, since the bottom portion 1a itself is warmed, comfort like a hot carpet can be obtained. The function of increasing the temperature of the hot water near the bottom surface of the bathtub as described above cannot be obtained by the conventional "reheating" in which the temperature of the hot water is increased during bathing. In addition, the high-temperature hot water circulating in the hollow portion 3 can also raise the temperature of the hot water in the bathtub body 1, so that the hot water also has a function as “reheating” and can come into contact with the hot water in the bathtub main body 1. Since there is no hot water, the hot water in the bathtub body 1 does not come into contact with the dirt in the piping of the boiler 7, and the hot water is clean.

Hot water in the bathtub body 1 after bathing is drained from a drain port 5 to a drainage groove (not shown), and hot water in the hollow portion 3 is similarly drained from a drainage pipe 11 to a drainage groove.

FIG. 2 is a side sectional view showing a second embodiment of the present invention, and FIG. 3 is a plan view of the second embodiment. Is omitted. In the figure, a bottom portion 1a and a wall portion 1 of a bathtub body 1 are shown.
c is formed as a double structure having a plurality of openings 1d, and an open hollow portion 3 having a predetermined space volume is formed in the double structure portion. In order to form the hollow portion 3, a separate base 15 is disposed below the bottom portion 1a with a predetermined distance from the bottom portion 1a and the wall portion 1c, and the separate base 15a is attached to the side portion of the wall portion 1c. And may be arranged. A hot water flow pipe 14 is disposed in the hollow portion 3 of the double structure. The flow pipe 14 is made of a stainless steel plate or a steel plate enamel having a predetermined plate thickness required for maintaining the strength of the bathtub, or another material suitable for a bathtub material.

As shown in the plan view of FIG.
A plurality of openings 1d, 1d are formed at appropriate locations on the bottom surface 1a of the base member 1a.
Is partially exposed.

The operation of the second embodiment is basically the same as that of the first embodiment. Hot water set at the optimum temperature obtained from the boiler 7 is supplied to the bathtub via the hot water supply pipe 12 and the cock 13. The hot water obtained in the boiler 7 is supplied from the hot water supply pipe 8 into the circulation pipe 14 as needed, and is returned to the boiler 7 through the circulation pipe 9.
As a result, the high-temperature hot water obtained by the boiler 7 is circulated in the flow pipe 14 as necessary, so that heat is transmitted from the opening 1d to the vicinity of the bottom of the bathtub body 1 and the above-described “direct fired heating” is performed. ”, And a feeling of bathing that cannot be obtained by conventional“ reheating ”is obtained.

FIG. 4 is a sectional side view showing a third embodiment of the present invention, and FIG. 5 is a plan view of the same. In this example, the present invention is applied to a large public bath installed in a hot spring or a hotel. Is shown. In the figure, reference numeral 16 denotes a vertical wall for forming a bathtub of a large public bath, reference numeral 17 denotes a base made of concrete, and reference numeral 18 denotes a stone material such as marble spread on the bottom of the bathtub.

In the vicinity of the bottom wall inside the bathtub along the vertical wall 16,
Square pipe 19 having hollow portions 19a and 19a inside
Are mounted as buried. As shown in the plan view of FIG. 5, the rectangular pipe 19 is disposed along the vertical wall 16 at a position that entirely surrounds the bottom surface of the bathtub. As shown in FIG. 6, the lower end of the rectangular pipe 19 has a fin 19b, 1 that protrudes laterally.
9b is attached.

Further, a vertical wall 1 for constituting the bathtub body 1
6 is provided with a pipe 20 having a hollow portion 20a inside. The pipe 20 is projected all around the vertical wall 16,
Or it is arranged in a buried state. 7, both ends of the pipe 20 are provided with fins 20b, 20b which protrude laterally and are used for retaining.

According to the third embodiment, the floating fin 19b provided at the lower end of the rectangular pipe 19 is fixed to the concrete base 17, and the floating fin 19b provided at both edges of the pipe 20 is provided. The fin 20b is inserted into an appropriate position of the vertical wall 16 and fixed. The hollow portions 19a, 19a formed inside the rectangular pipe 19 and the pipe 2
The high-temperature hot water obtained by the boiler 7 described in each of the above-described examples is supplied to the hollow portion 20a of the cylinder 0, and is returned to the boiler 7 through the rectangular pipe 19 and a circulation pipe (not shown) provided at the other end of the pipe 20. I do. As a result, high-temperature hot water obtained by the boiler 7 is circulated in the square pipes 19 and 20 as necessary, so that the square pipe is provided to the bather M leaning near the vertical wall 16. 19 and pipe 20
Is transmitted, and a feeling of bathing similar to the above-mentioned "direct fire" is obtained.

[0028]

According to the bathtub having such a configuration, hot water can be supplied into the bathtub main body by operating the boiler and supplying hot water from the opening of the bathtub main body to the bathtub main body. The hot water at the vicinity of the bottom of the bathtub is supplied by circulating a predetermined high-temperature hot water as needed in the hollow portion formed as a double-structured portion or wall surface separately from the hot water of the bathtub body. It can be hotter than the upper part of the bathtub, and it can be warmed from the bottom.It is close to the `` open fire '' bath used in Japan since ancient times, and it is heated from the core of the user's body A feeling of bathing that cannot be obtained with ordinary "reheating" is obtained. Also,
By the hot water supplied to the hollow part, the hot water itself in the bathtub body is also heated, so that the function of reheating can be exhibited. Moreover, since the hot water in the bathtub body does not come into contact with the hot water in the bathtub body, the hot water in the bathtub body does not come into contact with dirt in the piping of the boiler, and the hot water is clean.

In particular, according to the present invention, a feeling of use that cannot be obtained by the reheating function provided to a general gas water heater or an oil water heater can be obtained. It is applicable even in the case of a bath, and exhibits a great effect of increasing the bathing feeling of these large baths.

[Brief description of the drawings]

FIG. 1 is a side sectional view of a first embodiment of a bathtub according to the present invention.

FIG. 2 is a side sectional view of a second embodiment of a bathtub according to the present invention.

FIG. 3 is a plan view of the second embodiment.

FIG. 4 is a sectional side view of a main part of a third embodiment of a bathtub according to the present invention.

FIG. 5 is a plan view of a third embodiment.

FIG. 6 is a partial perspective view of a square pipe used in the third embodiment.

FIG. 7 is a sectional view of a pipe used in the third embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Bath tub body 1a ... Bottom part 1b ... Step part 1c ... Wall part 1d ... Opening part 2 ... Bottom member 3 ... Hollow part 4 ... Screw 5 ... Drain port 6 ... Support base 7 ... Boiler 8, 12 ... Hot water supply pipe 9 ... Circulation pipe 10 ... Air release pipe 11 ... Drain pipe 13 ... Cock 14 ... Circulation pipe 15,15a, 17 ... Base 16 ... Vertical wall 18 ... Stone 19,20 ... Pipe 19a, 20a ... Hollow part 19b, 20b ... For retaining Fin

Claims (15)

[Claims] 1. A bottom portion of a bathtub body having a double structure, a hollow portion having a predetermined space volume is formed, and hot water of a predetermined high temperature is supplied into the hollow portion separately from the hot water of the bathtub body. A bathtub characterized by the following. 2. A wall portion of the bathtub body having a double-walled structure, a hollow portion having a predetermined space volume is formed, and a predetermined high-temperature hot water is supplied into the hollow portion separately from the hot water of the bathtub body. A bathtub characterized by the following. 3. A hollow portion having a predetermined space volume is formed between the bathtub body and the bottom member by attaching a bottom member separate from the bathtub body to the bottom portion of the bathtub body. A bath tub in which hot water of a predetermined high temperature is supplied separately from the hot water of the bath tub body. 4. A hollow portion having a predetermined space volume is formed between the bathtub main body and the wall member by attaching a wall member separate from the bathtub main body to the wall surface portion of the bathtub main body. A bath tub in which hot water of a predetermined high temperature is supplied separately from the hot water of the bath tub body. 5. A bottom structure of the bathtub body having a double structure having a plurality of openings, an open hollow having a predetermined space volume is formed, and a hot water flow pipe is disposed in the hollow. A bathtub, wherein hot water of a predetermined high temperature is supplied into the flow pipe separately from the hot water of the bathtub body. 6. A wall structure of a bathtub body having a double structure having a plurality of openings, an open hollow portion having a predetermined space volume is formed, and a hot water flow pipe is arranged in the hollow portion. A bathtub, wherein hot water of a predetermined high temperature is supplied into the flow pipe separately from the hot water of the bathtub body. 7. A bathtub selected from stainless steel, cast enamel, artificial marble, wood, artificial resin, polybass, and steel plate enamel is used as the bathtub body. The bathtub according to 5 or 6. 8. A pipe having a hollow portion therein is disposed between a vertical wall for forming a bathtub body and a bottom portion of the bathtub body along the vertical wall, and is buried in the bottom portion of the bathtub body. A bathtub in which hot water of a predetermined high temperature is supplied separately from the hot water of the bathtub body. 9. The bathtub according to claim 8, wherein the pipe is disposed at a position entirely surrounding the bottom of the bathtub body. 10. The tubing according to claim 8, wherein a fin for retaining the water is provided at a lower end portion of the pipe, and the fin is fixed to a concrete base at a bottom portion of the bathtub body. Bathtub. 11. A pipe having a hollow portion inside a vertical wall for constituting a bathtub main body, and a predetermined high-temperature hot water is supplied into the pipe separately from the hot water of the bathtub main body. And a tub. 12. The bathtub according to claim 11, wherein the pipe is arranged on the entire circumference of the vertical wall of the bathtub. 13. The bathtub according to claim 11, wherein the pipe is arranged so as to protrude or be buried. 14. A hot water of a predetermined high temperature, which is supplied separately from the hot water of the bathtub body, is circulated by a boiler having a reheating function and supplied.
The bathtub according to 7, 8, 9, 10, 11, 12, or 13. 15. The hot water supply to the bathtub main body through an opening on the upper surface of the bathtub main body.
The bathtub according to 7, 8, 9, 10, 11, 12, 13 or 14.