JPH0471558A - Jet stream device for bathtub - Google Patents

Abstract

PURPOSE:To decrease a pipe member and save labor by fitting the suction port of a pump to a bathtub near the water intake port of the bathtub, and providing a jet nozzle device connected to its water feed port and located near the jet port of the bathtub. CONSTITUTION:A pump 15 formed with a DC-driven brushless motor incorporated with an impeller is fitted to a bathtub 14 at the water intake port 14a of the bathtub 14 with a casing 3 forming the DC-driven brushless motor and a bracket. A jet nozzle device 17 connected to a water feed pipe 16 connected to the discharge port of the pump 15 is fitted to a jet port 14b. An air feed pipe 18 feeds air to the jet nozzle device 17. The pump 15 and the jet nozzle device 17 are connected via the water feed pipe 16, thus the water feed pipe 16 is made very short. The DC-driven brushless motor is made thin in axial thickness and miniaturized, its vibration is reduced, and the vibration noise is reduced in conjunction with the shortening of the water feed pipe 16.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a bathtub jet device that mixes water and air and generates a jet stream.

Conventional technology In recent years, due to health-oriented needs, jet jet devices for bathtubs have been developed, which mix water and air and spray a jet to provide mechanical stimulation to the surface of the body during bathing, promoting blood circulation and recovering from fatigue. is becoming popular.

FIG. 4 shows a schematic configuration of this jet jet device for a bathtub.

As shown in the figure, a pump 2 is installed at the water intake port 20a of the bathtub 20.
A metal fitting 21 is fixed to the suction pipe attachment for attaching the water suction pipe 22 communicating with the suction port No. 3.

A jet nozzle device 26 to which a water pipe 24 communicating with the discharge port of the pump 23 is attached is fixed to the jet port 20b of the bathtub 20. 26 is an air supply pipe that supplies air to the jet nozzle device 25.

With the above configuration, the hot water in the bathtub 20 passes through the water suction pipe 22 and draws air through the air supply pipe 26, and the hot water enters the jet nozzle device 26.
The water flows into the bathtub 2o along with air bubbles.

Problems to be Solved by the Invention In such a conventional jet jet device for a bathtub, since the pump 23 is located apart from the bathtub 20, a long water suction pipe 22 and a long water supply pipe 24 must be provided. First, piping work takes a lot of time and effort, and since the piping is long, the vibrations of the pump 23 are transmitted and sometimes resonate, often causing noise.

The present invention solves the above problems, and the suction pipe installation does not require metal fittings or suction pipes, and the length of the water pipe can be shortened, eliminating the need for troublesome piping, and reducing vibration noise. An object of the present invention is to provide a jet jet device for a bathtub with less water.

Means for Solving the Problems In order to achieve the above objects, the present invention provides a pump that communicates with a water intake port of a bathtub, a water pipe that communicates with the pump, and a jet that communicates with the water pipe and faces the jet port of the bathtub. In addition to the nozzle device, the pump is fixed to the bathtub with its suction port facing the water intake port. Further, the pump is formed by a DC-driven brushless motor with an integrally incorporated impeller.

Function: With the above-described configuration, the present invention uses only the water pipe that communicates the pump and the jet nozzle device, which simplifies piping work, and also eliminates vibration and noise from the pump because long piping is not required. be able to.

EXAMPLE Hereinafter, an example of the present invention will be described with reference to FIGS. 1 and 2.

As shown in the figure, a pump 16 formed by a DC-driven brushless motor 19 incorporating an impeller is fixed to the water intake port 14a of the bathtub 14 by a casing 3 of the DC-driven brushless motor 19. .

A jet nozzle device 17 that communicates with a water pipe 16 that communicates with a discharge port of a pump 16 is fixed to a jet port 14a of the bathtub 14. 18 is an air pipe that supplies air to the jet nozzle device 17.

Next, the configuration of the DC drive brushless motor 19 forming the pump 15 and the fixing configuration of the pump 16 will be explained with reference to FIG.

As shown in the figure, a cover member 1 is attached to a water intake port 14a of a bathtub 14, and is attached to a casing 3 by screwing. Reference numeral 2 denotes an inlet provided in the cover member 1. Reference numeral 3 denotes a casing that also serves as a screwing member for connecting the bathtub 14 and the motor section. A bracket 4 is screwed onto the casing 3 and is made of synthetic resin. Reference numeral 6 denotes gaskets arranged on both sides of the bathtub 14. Reference numeral 6 represents a stator resin-molded within the bracket 4, and 7 represents a rotor made of synthetic resin, on which a rotor magnet 7a is molded.

8 is a buried oil bearing buried in the center of the rotor 7. Reference numeral 9 denotes a shaft that rotatably supports the bearing 8 and is fixed by the bracket 4 and the casing 3. Reference numeral 1o denotes a shaft plate that is disposed at both ends of the bearing 8 and receives sliding movement of the rotor 7 in the thrust direction. Reference numeral 11 denotes an impeller integrally formed with the rotor 7, which pressurizes the sucked water and sends it to the water pipe 16. 12
is the discharge pipe.

DC drive brushless motor 19 configured as above
The impeller 11 is integrally formed on the rotor 7, the rotor magnet 7a is molded, and the bracket 4 is attached to the foot.
Since the stator 6 is molded, the thickness in the axial direction can be made thin.

In the above configuration, the pump 15 is fixed to the bathtub 14 by screwing the casing 3 and the bracket 4 that form the DC drive motor 19, and the pump 15 and the jet nozzle device are communicated through the water pipe 16, so that the water pipe 1e is connected to the water pipe 1e. It will be extremely short. Further, since the direct current drive brushless motor 19 is thinner in the axial direction and more compact, its vibration is also reduced, and together with the shortening of the water pipe 16, vibration noise is reduced.

Effects of the Invention As is clear from the above description of the embodiments, according to the present invention, there is provided a pump communicating with the suction port of the bathtub, a water pipe communicating with the pump, and a water pipe communicating with the water pipe communicating with the jet port of the bathtub. In addition to the jet nozzle device that communicates with the pump, the pump is fixed to the bathtub with its suction port facing the water intake port, so no piping is required other than the suction pipe, and its length is extremely short. The number of piping members is reduced, and no labor is required, and there is no need for a tube for arranging a pump. Furthermore, since the pump is formed by a DC-driven brushless motor incorporating an impeller, it is possible to provide a jet jet device for a bathtub that has excellent effects such as less vibration and less noise. .

[Brief explanation of drawings]

Fig. 1 is a partially cutaway side sectional view showing the schematic configuration of a bathtub jet device according to an embodiment of the present invention, Fig. 2 is a side sectional view of the pump, which is a DC-driven brushless motor, and Fig. 3 is a side sectional view of the same pump. FIG. 2 is a partially cutaway side sectional view showing a schematic configuration of a conventional jet jet device for a bathtub. 11... Impeller, 14... Bathtub, 14
a...Water inlet, 14b...Jet port, 1
5...Pump, 16...Water pipe, 17
...Jet nozzle device, 19...DC drive brushless motor (pump). Name of agent: Patent attorney Shigetaka Awano and 1 other person + 4
-Others & d F-T-Small Under RC--Ikko Eien

Claims (2)

[Claims] (1) Consisting of a bathtub having a water intake port and a jet port, a pump communicating with the water intake port, a water pipe communicating with the pump, and a jet nozzle device communicating with the water pipe and facing the jet port, A jet jet device for a bathtub, wherein the pump is fixed to the bathtub with its suction port facing the water intake port. (2) The jet jet device for a bathtub according to claim 1, wherein the pump is formed by a DC-driven brushless motor integrally incorporating an impeller.