JPH0889722A - Bath tub - Google Patents

Abstract

PURPOSE: To enable a bather to comfortably enjoy bathing with entirely no or substantially no feeling that the bather is sucked into water intake ports or the discharge flow from return ports. CONSTITUTION: The base of a bath tank body 1 is provided with respectively plural pieces of the filtered water return ports 7, the water intake ports 8 for jet and the water intake ports 9 for filtration. The bath tank is so constituted that the discharge speed of the filtered water and the inflow speeds to the water intake ports 8, 9 are set low and that the discharge flow and water intake water flow are sensed mainly by the rear of feet and the lower legs.

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 having a filtering function or a bubble ejecting function.

[0002]

2. Description of the Related Art A bathtub having a filtering function is constructed such that water in the bathtub is taken in from a water intake port of the bathtub, filtered by a filter, and then returned to the bathtub from a return port of the bathtub.

In the conventional bathtub, one return port is provided on the side wall surface of the bathtub.

In a jet bath type bubble bath, water is taken out from a water intake port of the bath, this water is jetted vigorously from a nozzle by a pump, and air is sucked by a venturi action from an air intake port provided in the nozzle. As a result, bubbles are ejected into the bathtub along with the water flow.

[0005]

In recent years, it has become possible to add a filtering function and a jet bath function to a public bathtub. This public bathtub often has a depth of 60 cm or more and a large floor area of 1.2 m ² or more.

In such a large tub, since the amount of filtered water is large, if there is only one return port, the discharge speed from the return port will be high, and the limbs of the bather near the return port will be exposed. The perceived pressing feeling becomes excessive, causing discomfort.

Further, in such a large bathtub,
Since the number of nozzles for ejecting bubbles also increases, if the number of intake ports remains one, the suction speed from the intake ports will increase,
The sensation of inhalation by the bather's limbs near the water intake becomes excessive, causing discomfort.

Even in a small bathtub for general household use, if there is only one return port, the discharge speed from the return port becomes high, and the pressing feeling tends to be excessive and uncomfortable.

[0009]

According to a first aspect of the present invention, there is provided a bathtub having an intake port for water in the bathtub and a return port for returning water filtered by the intake port. The mouth is provided on the bottom surface of the bathtub.

According to a second aspect of the present invention, there is provided a bathtub having a water intake port for the water in the bathtub and a return port for returning the water that has been filtered by the water intake process. It is characterized by that.

According to a third aspect of the present invention, the bathtub is provided with an intake port for taking in the bubble jetting water, wherein at least one of the intake ports is provided on the bottom surface of the bathtub. Is.

[0012]

In the bathtub according to the first aspect of the present invention, the bottom of the bath body is mainly in contact with the sole of the bather. Since the sensation of the sole of the foot is relatively dull compared to the other limb surfaces, the pressing feeling due to the flow of water discharged from the return port is not so noticeable. Therefore, discomfort felt by the bather is eliminated or reduced.

In the bathtub according to the second aspect of the present invention, by providing a plurality of return ports, the discharge speed of water from one return port is reduced, and the discomfort felt by the limbs near the intake port is eliminated. Or reduced.

In the bathtub according to the third aspect, the bottom of the bath body is mainly in contact with the sole of the bather. Since the sole of the foot has a relatively dull sensation as compared to the surface of other limbs, the feeling of being sucked in by the flowing water sucked into the water intake is not so much sensed. Therefore, discomfort felt by the bather is eliminated or reduced.

[0015]

EXAMPLES Examples will be described below with reference to the drawings. FIG. 1 is a plan view of a bathtub according to an embodiment, FIG. 2 is a vertical sectional view of the same, FIG. 3 is a perspective view of the same, and FIG. 4 is a system diagram showing water circulation.

The bathtub body 1 has a quadrangular shape in plan view, and a grating 2 for receiving overflow water is provided around the outer peripheral edge of the upper portion.

About 50 to 60c from the upper edge in the bathtub body 1
The stool 3 is provided around the depth of about m. The central portion of the bath body 1 is the deepest rectangular portion 4 having a depth of about 85 to 95 cm.

A total of 10 nozzles 6 for jetting water containing bubbles are provided on the upper side wall surface 5 which extends from the upper edge portion to the seat portion 3.

At the bottom of the deepest portion 4, a filtered water return port 7 is provided.
Two are provided. Further, two jet intakes 8 and two filtration intakes 9 are provided on the bottom surface of the deepest portion 4. Furthermore, on this bottom surface, the drainage port 10
And a fumarole 11 for blowing out only air. The fumes 12 are also provided on the seat surface (horizontal surface) of the seat 3. The fumaroles 11 and 12 are arranged in a row.

An underwater light 14 is provided on the side wall surface 13 which extends from the seat 3 to the deepest portion 4. The grating 2 is provided with a water outlet 2a.

As shown in FIG. 4, the jet water intake 8 is connected to the nozzle 6 through a pipe 15, a pump 16 and a pipe 17. The air pipe 6a extending from the nozzle 6 is connected to the air intake portion 20 at the upper edge of the bath. The air intake section 20 is provided with a knob for adjusting the amount of bubble ejection.

The filtration water intake 9 is connected to a filtration unit 19 via a pipe 18. This filtration unit 19
Comprises a filter element and a pump. The filtered water of the filtering unit 19 is sent to the return port 7 via the pipe 21.

The water outlet 2a of the grating 2 is connected to a tank 23 via a pipe 22. The tank 23 is provided with a ball tap 24, and the tap water can be supplied from the tap water pipe 25 so that the tap water is always above a predetermined water level. The tank 23 is connected to the middle of the pipe 18 via the pipe 26.

Reference numeral 27 denotes a perforated plate which is attached to the grating 2. Although not shown, the intake ports 8 and 9 are fitted with caps made of mesh or lattice. A plug is attached to the drainage port 10.

The air vents 11 and 12 are connected to the air pipe 27.
It is connected to the air pump (blower) 28 via.

Of the upper edge of the bath body 1, the jet pump and the filtration unit 1 are provided on the upper surface outside the grating 2.
A switch 30 for controlling the pump 9 and the air pump 28 and the underwater light 14 is provided.

In the thus constructed bathtub, when the jet pump 16 is operated, the water in the bathtub is taken in from the water intake port 8 and ejected together with the bubbles from the nozzle 6. By rotating the knob of the air intake section 20, the ejection amount of the bubbles can be adjusted.

When the pump of the filtration unit 19 is operated, the water in the bath body 1 is taken in through the water intake 9, filtered by the filtration unit 19, and then returned into the bath 1 through the return port 7.

By operating the air pump 28, only the air is ejected from the fumaroles 11 and 12.

In this bathtub body 1, since a plurality of return ports 7, jet water intake ports 8 and filtration water intake ports 9 are provided, the flow velocity of water discharged from the return port 7 and the intake water ports 8 and 9 are sucked. The flow velocity is low. Further, since the return port 7 and the intake ports 8 and 9 are provided on the bottom surface of the deepest part 4, and the deepest part is sufficiently deep of 80 cm or more, the discharge flow from the return port 7 and The suction flow into the water intake ports 8 and 9 is mainly perceived by the relatively dumb soles. Therefore, the bather of the bathtub body 1 can comfortably take a bath without feeling the pressing force due to the discharge flow from the return port 7 or the feeling of being sucked into the water intake ports 8 and 9.

In the present embodiment, the return port 7 and the water intake ports 8 and 9 are all provided on the bottom surface of the deepest portion 4, but a part of the return port 7 or the water intake port 8 is provided on the bottom surface and the remaining return ports are provided. 7 or intake 8
May be provided on the side wall surface 5 or 13. Further, all of the plurality of return ports 7 may be provided on the side wall surface 5 or 13.

The water intakes 8 and 9 may also be partially provided on the side wall surface 5 or 13.

The number of the return ports 7 and the intake ports 8 and 9 may be three or more.

Although the grating 2 is provided in the above embodiment, the grating 2 may be omitted.

The present invention is extremely suitable for application to a large bath having a depth of 60 cm or more and a floor area of 1.2 m ² or more.

[0036]

According to the bathtubs of claims 1 and 2, discomfort caused by hitting the discharge flow from the return port is reduced or eliminated, and comfortable bathing is possible in a large bathtub.

According to the bathtub of the third aspect, the discomfort caused by the running water sucked into the intake port is reduced or eliminated, and the bath can be comfortably bathed in the large bathtub.

[Brief description of drawings]

FIG. 1 is a plan view of a bath according to an embodiment.

FIG. 2 is a vertical cross-sectional view of the bathtub according to the embodiment (longitudinal cross-sectional view taken along the line II-II in FIG. 1).

FIG. 3 is a perspective view of a bathtub according to an embodiment.

FIG. 4 is a water passage system diagram of the bathtub according to the embodiment.

[Explanation of symbols]

 1 Bathtub body 2 Grating 6 Jet nozzle 7 Filtered water return port 8 Jet water intake port 9 Filtration water intake 11, 12 Fume port 19 Filtration unit

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shigeru Iida 5-1 Koi Ehonmachi, Tokoname City, Aichi Prefecture Inax Co., Ltd. (72) Inventor Toshiyuki Nakagawa 5-1 Koi Ehonmachi, Tokoname City, Aichi Inax Co., Ltd. In (72) Inventor River Johannes Dickey 6800 Bader Avervesvi 3 Scandinavian in AES

Claims (3)

[Claims] 1. A bathtub having a water intake port in the bathtub and a return port for returning the water that has been taken in by the intake port and has been filtered, wherein the return port is provided on the bottom surface of the bathtub. And a bathtub. 2. A bathtub having a water intake port in the bathtub and a return port for returning the water that has been taken by the water intake port and filtered, and a plurality of the return ports are provided. Bathtub. 3. A bathtub provided with an intake port for taking in bubble jet water, wherein at least one of the intake ports is provided on the bottom surface of the bathtub.