JP2830061B2 - Pipe connection method in bubble generation bathtub - Google Patents

Description

The present invention relates to a connection method in a bubble generating bath.

(B) Conventional technology Conventionally, for example, in a bubble generating bath, a water pipe is interposed between the circulation pump and the jet nozzle, and the bath is jetted by the operation of the pump, and the air bubbles are jetted out by suction of air. It is configured to perform.

The water pipe is arranged on the outer peripheral side of the bathtub body by connecting a pump joint pipe or various pipes.

(C) Problems to be Solved by the Invention However, such bath water suction pipes, bath water strong feed pipes, and air supply pipes are connected through joint pipes or various pipes in consideration of the space at the site. A pipe is provided between the circulation pump or the air intake section and the ejection nozzle. Therefore, when the connecting operation is performed on site, the connecting and fixing operation must be performed in a state where the connecting devices are not sufficiently provided, which has been difficult.

Also, the joint pipe and pipe are connected in advance at the factory,
If it is brought to the site as it is, repair work is required due to the space at the site, and it has a drawback that the work such as cutting and reconnection is difficult to perform easily.

(D) Means for Solving the Problems The present invention relates to a bath water circulation flow path comprising a bath water suction pipe and a bath water forced-feed pipe between a bathtub body and a circulation pump installed outside the bathtub body. A high-pressure bath water pipe is arranged along the outer periphery of the bathtub main body, and a plurality of locations are opened into the bathtub main body to form a jet nozzle, and an air intake section is suctioned into the high-pressure bath water bath pipe. In the bubble generation bath tub which is connected and connected via a pipe so that the hot water mixed with air bubbles can be jetted out of the jet nozzle into the bath tub main body, the air bath hot water feeding pipe is connected to various pipes and the joint pipe. When connecting the various pipes and the joint pipe, one of the joint pipe or the various pipes is inserted and overlapped with the other while the welding wire composed of the heater wire coated with thermoplastic resin is interposed between them. Then, by energizing the heater wire, the heater Those of the pipe connecting method in the bubble generating bath and performing fixing of the joint pipe and the various pipes at the heat generation allowed molten thermoplastic resin.

(E) Function / Effect According to the present invention, in the case of arranging a strong bath pipe on the outer periphery of a bathtub body in a factory or on site, when connecting a joint pipe and the various pipes constituting the strong bath pipe, First, the end of the pipe is inserted into one of the joint pipes, and at the same time, a welding material coated with a thermoplastic resin is interposed between the heater wires.

Next, when the heater wire is heated by applying a current to the heater wire from the welding machine to melt the thermoplastic resin, the joint pipe and the pipe end are integrally connected and fixed via the molten resin. It is.

Therefore, it is possible to form an optimal bath hot water supply pipe by combining the joint pipe and various pipes according to the outer shape of the bathtub and the distance of the jet nozzle pipe, and also in the factory and on-site of the bath hot water supply pipe. As well as assembling, repair work can be easily performed, and the installation and installation of the bubble generating bathtub can be extremely simplified, and the bathtub and auxiliary equipment for generating bubbles can be effectively disposed in a narrow space.

(F) Example An example of the present invention will be described in detail with reference to the drawings.

First, the overall structure of the bubble generating bath according to the present invention will be described in detail.

A shown in FIG. 1 is a bubble generation bathtub according to the present invention,
The bubble-generating bathtub A is provided on the front and rear walls and the left and right side walls of the bathtub body 1 formed in a box shape having an upper surface opening, and the foot-side, back-side, and ventral-side jet nozzles 2, 2, 3, 3, and 3, respectively, which have automatically variable jetting amounts. Four and four are provided.

The bathtub body 1 has an edge 1a having a fixed width around its periphery.
The air inlet 5 is provided at the same edge 1a, and a protruding portion is formed inward at the approximate center of the left and right inner side walls, and at the protruding end surfaces 1b, 1b, Ventral jet nozzles 4, 4 are installed toward the rear wall (back side).

Moreover, the ventral ejection nozzle 4 is provided at a higher position than the other foot / back ejection nozzles 2 and 3, so that the bath water can be reliably applied to the ventral and chest sides and other parts of the human body. It is configured to be able to.

A pump protection case 6 is provided outside the bubble-generating bath A, and a circulation pump P for circulating bath water, a filter F for filtering bath water, and a pump A motor M and a control unit C for controlling the driving of the nozzle valve opening / closing motor and the electric three-way valve are provided.

In addition, a bath water circulation path is provided between the circulation pump P and the bubble generation bath A, and the bath water circulation path supplies bath water from the bubble generation bath A to the circulation pump P. It is composed of a bath water suction pipe 7 for sending the bath water and a bath hot water feeding pipe 8 for sending the bath water from the circulation pump P to the bath tub A.

The bath water suction pipe 7 is connected at one end to a suction port 9 opened at the lower part of the bathtub body 1, and is connected to the suction port 9 of the circulation pump P at the other end. I try to inhale bath water.

On the other hand, the bath hot water pipe 8 has one end connected to the water discharge port of the circulation pump P, and the other end connected to the jet nozzles 2, 3, and 4, respectively.

Further, the above-described suction port 9 is connected to the foot side / back side ejection nozzle 2,
It is provided at a position lower than 3.

In addition, an inverter is provided between the pump driving motor M for driving the circulation pump P and the control unit C, and the output frequency of the inverter is changed to control the rotation speed of the circulation pump P. Thereby, the rotation speed of the circulation pump P can be smoothly and reliably changed.

A pressure detection sensor for detecting the water pressure of the bath water fed into the pipe 8 is installed in the middle of the bath hot water pipe 8, and the detection result from the sensor is sent to the control unit C. The control unit C controls the jet pressure of the bath water jetted from each jet nozzle 2, 3, 4 by changing the rotation speed of the pump driving motor M and the opening / closing amount of each jet nozzle 2, 3, 4. It is configured to do so.

Further, a bath water temperature detection sensor for detecting the temperature of the bath water pumped into the pipe 8 is attached in the middle of the bath hot water pump 8, and the detection result from the sensor is sent to the control unit C.
The control unit C controls the pump driving motor M and the ejection nozzles 2, 3, and 4.

Further, the above-described air intake section 5 and each of the jet nozzles 2, 3, 4
As shown in FIG. 1, a plurality of intake pipes 10
The intake pipes 10 are connected from the air intake section 5 to the ejection nozzles 2, 3, and 4, respectively.

Then, utilizing the negative pressure generated at the time of jetting the bath water from each of the jet nozzles 2, 3, and 4, the air taken in from the air intake section 5 is sucked into each of the jet nozzles 2, 3, and 4 through each of the intake pipes 10. The nozzles 2, 3, and 4 are configured to blow out bubbled bath water into the bathtub body 1.

As shown in FIG. 1, an operation panel section 12 connected to the control section C is provided at the edge 1a of the bathtub body 1, and the panel section 12 controls the operation of the bubble generation bathtub A. It is configured to do so.

In this embodiment, the operation panel section 12 is connected to the bathtub main body 1.
It is attached to the upper part of the air intake part 5 provided at the edge part 1a of the above to form an integral structure.

The operation panel unit 12 integrated with the air intake unit 5 will be described.
As shown in FIGS. 2 and 3, it is formed in a substantially rectangular shape, and its upper surface is formed in a downwardly sloped shape toward the inside of the bathtub main body 1. Is provided with an opening / closing lid 14 which can be opened and closed outwardly in a state of covering the operation display section 12-1.

 15 shows the pivot of the opening / closing lid 14.

16 is a switch mechanism 16, 16 'is a molded part, 16-1 is a connector, 16-2 is a protective case, 17 is a switch case, 18
Is a lead wire, 19 is an outer case, S is an interval, 20 is an intake case of the air intake section 5, is freely fittable to the peripheral edge of the outer case 19, 40 is an intake hole, L is an air flow passage, 21 Is a collar.

Further, the air flow passage L inside the intake case 20 is
Partitioned into two separate rooms by 22 and each room as the first
2,3 intake chambers 23,24,25.

Each of the intake chambers 23, 24, and 25 as the aerial flow passage L functions as a cylindrical air suction portion, and the upper end opening peripheral edge is formed in a substantially tapered shape. In this embodiment, the air suction portion is configured as a noise reduction pipe, and the noise reduction pipe is formed as cylindrical air suction portions 28 and 29.

That is, the upper partition plate 26 is provided above the intake chambers 23, 24, 25.
And a lower partition plate 27 are provided horizontally at a constant interval, and the partition plates 26 and 27 have a cylindrical upper air suction portion 28 and a lower air suction portion 29, respectively. The upper and lower portions communicate with each other via the suction portions 28 and 29.

In addition, each of the intake chambers 23, 24, and 25 includes an upper partition plate 26 and a lower partition plate.
27, the upper chamber 23 ', 24', 25 'and the lower chamber 23 ", 24", 25 "
It is divided into and.

Further, the upper air suction portion 28 communicates with the upper chambers 23 ', 24', 25 'of the intake case 20, and the lower air suction portion 29
Thereby, the upper chambers 23 ', 24', 25 'and the lower chambers 23 ", 24", 25 "communicate with each other.

Moreover, each of the cylindrical air suction portions 28 and 29 extends downward, and the lower end thereof is located in the middle of each of the upper and lower chambers.

Therefore, the noise emitted from each of the air suction portions 28, 29 flows into and diffuses into each of the large-capacity intake chambers 23, 24, 25, thereby reducing the acoustic energy and performing the noise reduction function.

As described above, each of the air suction portions 28 and 29 is configured to function as an upper and lower sound deadening pipe.Therefore, the air flowing into the air suction portions 28 and 29 smoothly flows through the tapered portions of the upper end openings. Inflow, the noise is reduced accordingly,
In addition, noise generated when the air is sucked through the air inlet 40 of the air intake section 5 is eliminated by the air suction sections 28 and 29 functioning as the silencing pipe.

Further, first and third air discharge holes 30 and 31 are provided outward at the lower ends of the first intake chamber 23 on both sides of the intake case 20 and the third intake chamber 25.

A second intake chamber 24 extends to a position below the first and third air discharge holes 23 and 25 below the middle of the intake case 20, and has left and right air discharge holes 32 and 33 are provided.

Accordingly, the vertical positional relationship between the first and third air discharge holes 30, 31 and the left and right air discharge holes 32, 33 is such that the latter is located below the former.

This is a configuration in which the intake pipes 10 communicating with the respective air discharge holes are not located on the same plane but are located vertically and do not overlap.

The left and right air discharge holes 32 and 33 are connected to abdominal intake pipes 10-3 piped on both sides of the bathtub body 1, respectively.
The intake pipe 10-3 communicates with the abdominal ejection nozzles 4,4,
Air is sucked and sent by the ejection function of the bath water from the nozzles 4,4.

Incidentally, reference numeral 20 'denotes a mold case for accommodating the mold 16', and reference numeral 34 denotes a seal.

In the bubble generation bathtub A as described above, the gist of the present invention is to form the bath hot water supply pipe 8 by connecting various pipes and the joint pipe H, and at the time of connecting the various pipes and the joint pipe H,
One of the joint pipe H or various pipes is inserted and overlapped with the other in a state where the welding material K formed by coating the thermoplastic resin N-1 on the heater wire is interposed therebetween, and then the heater wire is energized. With the heat of the heater wire, the thermoplastic resin N-1
To fix the joint pipe H and various pipes. In this embodiment, a nichrome wire N is used as a heater wire.

That is, when arranging the bath hot water supply pipe 8 along the outer periphery of the bathtub main body 1, various required short pipes are connected to the bath hot water supply pipe 8 via the joint pipe H in the middle of each. In this case, the connection is made so that the connection can be fixed with one touch.

The above-mentioned method can be applied to the bath water suction pipe 7 and the suction pipe 10. Each of the pipes 87, 8, and 10 is, for example, in the hot water bath 8 so that it can withstand jet pressure and high temperature. Using thermoplastic resin belonging to polyolefin, polyamide resin or polybutene resin, low cost heat resistance,
It is made of a material that can withstand earthquake resistance, and the bath water suction pipe 7 is made of a thermoplastic resin such as polybutene resin, and the suction pipe 10 is made of a polybutene resin. Thus, the synthetic resin pipe can be welded to the joint pipe H of the same material by one-touch welding.

First, the welding material K is applied to the nichrome wire N by the thermoplastic resin N-.
1, the welding material K is spread over the outer peripheral surface of the end portion of the bath water forcible pipe 8, for example, and the joint pipe H is covered therefrom. When a current is supplied from the welding machine main body N-2, the thermoplastic resin is melted by the heat generated from the nichrome wire, and the joint pipe H and the bath hot water pipe 8 are integrally welded (see FIG. 12). .

In addition, the outer peripheral surface of the end portion of the bath hot water pipe 8 and the inner peripheral surface of the joint pipe H are each formed with a taper so that they can be fitted, and the welding material K is interposed in the pipe. Secure connection is ensured.

This is the same when connecting other pipes.

As described above, since the one-touch welding is performed via the welding material K, the installation direction of the bathtub main body or the installation location of the circulation pump P and the filter F can be freely selected at the site where the bathtub main body is installed. In addition, since the complicated connection of the pipes can be performed with one touch, the welding efficiency can be improved and the welding operation can be reliably performed.

As described above, the pipes such as the bath water suction pipe 7, the bath hot water supply pipe 8, and the suction pipes 10-1, 2, and 3 are made of thermoplastic resin having excellent heat resistance, chemical resistance, moldability, and the like. It is made of resin, and the material is different according to the place of use.
It is intended to provide a strong and economical piping.

That is, for the bath hot water supply pipe 8, a thermoplastic resin having excellent heat resistance, chemical resistance, and moldability, such as a thermoplastic resin belonging to polyolefin or a polyamide resin or a polybutene resin, is used.

This makes the weight lighter than the conventional pipe made of body tube material,
It is inexpensive, and can withstand the wear of the inner peripheral surface due to the high flow rate of the hot water from the circulating pump P. In addition, when the reheating function is added, high-temperature water must be sent. Thus, a thermoplastic resin having sufficient heat resistance will be used.

Also, in the suction pump, the back side suction pipe 10-1, the foot side suction pipe 10-2, and the abdomen side suction pipe 10-3 use a thermoplastic resin or polybutene resin belonging to polyolefin, and are manufactured with a reduced weight. Or, the pipes can be easily repaired on-site. In particular, since the intake pipe has only the air feeding function, it is lighter in weight than the material itself, making it easier to repair the pipes. A suitable thermoplastic resin is used.

The bath water suction pipe 7 is made of a thermoplastic polyamide resin and is made by integrally molding a glass-containing part (nylon 6) and a glass-free part (nylon 11).
Since the bath water pipe was made of bronze casting and copper pipe, if the bath water supply pipe was shocked to the resin carried into the bath of the bath tub body, the side of the bath tub side where the pipe tip was attached There was a risk that artificial marble or the like would be damaged by the load imposed on the pipe. In the embodiment of the present invention, it is made of a flexible material of a thermoplastic resin polyamide resin (nylon 11), absorbs even if an impact is given, is easy to deal with on site, and is easy to mold.

In this way, since each pipe is made of a different material depending on the place of use and is based on a thermoplastic resin, it is possible to use the most suitable resin according to the specificity of the place of use, thereby reducing costs. It is possible to provide a cheap and strong piping structure.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a bubble generating bathtub structure according to the present invention,
FIG. 2 is a front sectional view of the operation panel unit integrated with the air intake unit, FIG. 3 is a side sectional view of the operation panel unit, FIG. 4 is a sectional view taken along line II of FIG. 2, and FIG. Plan view of the air intake section,
FIG. 6 is a plan view showing the piping of the bubble generating bathtub, FIG. 7 is a perspective view of the piping along the line II-II in FIG. 6, FIG.
FIG. 10 is a right side view of the same, FIG. 10 is an explanatory view showing a connecting method of the present invention, FIG. 11 is a partially enlarged sectional view of FIG. 9, and FIG. In the figure, A: Bubble generation bath P: Circulation pump C: Control unit 1: Bath tub body 12: Operation panel unit 7: Bath hot water suction pipe 8: Bath hot water pipe 10: Intake pipe H: Joint pipe K: Welding material N: Nichrome wire N-1: Thermoplastic resin N-2: Welding machine body

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Mitsuaki Hashida 2-81-1, Honmura, Chigasaki-shi, Kanagawa Prefecture Tochiki Kikai Co., Ltd. Chigasaki Plant (72) Inventor Koichi Uchiyama 2-81-1, Honmura, Chigasaki-shi, Kanagawa Prefecture No. Tochiki Co., Ltd. Chigasaki Factory (72) Inventor Kenji Moriyama 2-8-1, Honmura Chigasaki-shi, Kanagawa Prefecture Tochiki Kikai Co., Ltd. Chigasaki Factory (56) References JP-A-2-309959 (JP, A (58) Fields investigated (Int. Cl. ⁶ , DB name) A61H 23/00 540

Claims (1)

(57) [Claims] 1. A hot water supply pipe (7) and a hot water supply pipe (8) are provided between a bathtub body (1) and a circulation pump (P) installed outside the bathtub body (1). A bath water circulation flow path is provided, and a bath water forcible pipe (8) is arranged along the outer periphery of the bathtub body (1), and a plurality of locations are opened into the bathtub body (1) and a jet nozzle ( 2) (3) and (4), and an air intake section (5) is connected to the strong bath pipe (8) through an intake pipe (10), and the jet nozzle (2)
(3) In the bubble generating bathtub configured so that the bathwater mixed with bubbles can be jetted into the bathtub body (1) from (4), the air bath hot water pipe (8) is connected to various pipes and a joint pipe (H).
When connecting the various pipes to the joint pipe (H), the joint pipe (H) is provided in a state where a welding material formed by coating a heater wire with a thermoplastic resin is interposed therebetween. Is characterized in that one of the various pipes is inserted into the other and overlapped, and then the heater wire is energized to melt the thermoplastic resin by the heat generated by the heater wire, thereby fixing the joint pipe to the various pipes. How to connect pipes in the generating tub.