JP2002146882A - Hot water washing nozzle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hot water washing nozzle capable of obtaining a sufficient hot water jet quantity without increasing the diameter of a nozzle body. SOLUTION: This hot water nozzle is provided with a cylinder 40 and the nozzle body 42 protrudable from the cylinder 40. A first jet port 44 comprising a plurality of holes having a relatively large diameter and a second jet port 46 comprising a plurality of holes having a relatively small diameter are provided in parallel in the longitudinal direction on the upper face on the tip side of the nozzle body 42. When a solenoid 56 wound on the outer periphery of the cylinder 40 is de-excited, an iron core 54 is set to a retreated state, a valve element 50 closes the second jet port 46, and hot water is spouted from the first jet port 44. When the solenoid 56 is excited, the iron core 54 is advanced, thereby the valve element 50 is moved forward to close the first jet port 44, and hot water is spouted from the second jet port 46.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a nozzle of a hot water washing apparatus for washing a hip of a human body with hot water, and more particularly to a hot water washing nozzle capable of changing a hot water jetting pattern.

[0002]

2. Description of the Related Art Toilet facilities in which a hot water washing device is installed in a toilet such as a Western style toilet and the buttocks can be washed with hot water after stool or the like are rapidly spreading. This hot water cleaning apparatus is often provided with a cleaning nozzle having a cylinder and a nozzle body that can freely protrude from the tip of the cylinder. When hot water is supplied to the rear part of the cylinder, the nozzle body moves forward and protrudes from the cylinder by this water pressure, and hot water spouts from the tip to wash the buttocks. It should be noted that, besides such a hydraulic advance system, there is also an electric system in which the nozzle body is moved forward and backward by a motor or the like. The present invention can be applied to any type of hot water washing nozzle.

FIG. 5 is a perspective view of a conventional hot water washing nozzle of a hydraulic advance type.

In this conventional example, a first cleaning nozzle (shower nozzle) 10 and a second cleaning nozzle (bidet nozzle) 20 are provided as hot water cleaning nozzles. Each of the cleaning nozzles 10 and 20 includes a cylinder 12 and 22 and a nozzle body 14 and 24 that can protrude from the tip of the cylinder 12 and 22.
The hot water outlets 14a, 24a (24a are not shown) are provided on the upper surfaces of the tip portions of the nozzle bodies 14, 24. Knobs 14b and 24b are provided on the tip end surfaces of the nozzle bodies 14 and 24, respectively.
The nozzle bodies 14 and 24 can be pulled out by pinching the nozzles b and 24b. A return spring (not shown) is provided in the cylinders 12 and 22 and urges the nozzle bodies 14 and 24 to retract into the cylinders 12 and 22.

[0005] A switching device 30 is connected to the rear portions of the cylinders 12 and 22 via a first feed pipe 16 and a second feed pipe 26. The switching device 30 includes a step motor 32 and a valve mechanism 34, and is configured to distribute hot water from a feed hose 38 to either the first feed pipe 16 or the second feed pipe 26. The upstream end of the feed hose 38 is connected to a hot water tank.

When hot water is supplied from the first feed pipe 16 to the first cylinder 12 by the switching device 30, the first nozzle body 14 moves forward and hot water spouts from the jet port 14a to clean the buttocks (so-called shower washing). Is performed.

When hot water is supplied from the second feed pipe 26 to the second cylinder 22 by the switching device 30, the second nozzle body 24 moves forward, hot water is jetted from the jet port 24a, and bidet washing is performed.

[0008] As such a hot water washing nozzle, there is a hot water washing nozzle in which a plurality of types of jet ports are provided at the tip side of the nozzle body to switch the jet port from which hot water is jetted.
According to this hot water cleaning nozzle, the hot water jetting pattern can be changed. For example, a cleaning pattern in which hot water is poured over a wide range and a strong cleaning pattern in which hot water is narrowed down can be switched.

Conventionally, in order to switch the jetting pattern, a structure has been adopted in which a water channel is provided for each jet port, and water supply to the water channel is switched by a valve disposed outside the washing nozzle.

[0010]

When a plurality of water passages are provided in the nozzle body as described above, each of the water passages becomes narrow, the pressure loss increases, and it is difficult to increase the amount of jetted water. Further, in order to increase the diameter of the water channel, the diameter of the nozzle body must be increased.

An object of the present invention is to provide a hot water washing nozzle capable of obtaining a sufficient amount of hot water jet without increasing the diameter of the nozzle body.

[0012]

SUMMARY OF THE INVENTION A hot water washing nozzle according to the present invention comprises a cylinder and a nozzle body protruding from a tip side of the cylinder, and a jet port for jetting hot water to an upper surface on a tip side of the nozzle body. Is provided, and as the spout,
In a hot water washing nozzle having a first ejection port close to the tip of the nozzle body and a second ejection port behind the first ejection port, the first ejection port and the second ejection port are provided in the nozzle body. And a valve body for switching the open / close state of the valve.

In such a hot water washing nozzle, it is sufficient to provide one water passage in the nozzle body, and the diameter of the water passage can be made sufficiently large without increasing the diameter of the nozzle body. it can. However, the present invention does not exclude increasing the diameter of the nozzle body.

The valve body is disposed at the front end of the nozzle body so as to be movable in the front-rear direction, and the upper surface of the valve body is slidable on the upper surface of the inner surface of the nozzle body. Preferably, it can be in a closed state. Such a configuration is simple and hardly increases the pressure loss of the water channel.

In order to move the valve, it is preferable to connect the front end of the linear body to the valve and connect the rear end of the linear body to the driving member. With this configuration, the driving member does not exist on the distal end side of the nozzle main body, and the configuration on the distal end side of the nozzle main body is simplified.

The driving member is made of a magnetic material, and it is highly preferable that a solenoid for moving the magnetic material is arranged on the outer periphery of the cylinder. According to this configuration, it is unnecessary to draw the linear body out of the nozzle, and the nozzle is excellent in watertightness. Further, since the solenoid is disposed outside the nozzle, it is not necessary to increase the diameter of the cylinder or the nozzle body.

[0017]

Embodiments of the present invention will be described below with reference to the drawings. 1A and 1B show a hot water washing nozzle according to an embodiment. FIG. 1A is a longitudinal sectional view of the nozzle in a longitudinal direction, and FIG. 1B is a perspective view of a valve body and an iron core.
2 is a sectional view taken along the line II-II of FIG. 1 (b), FIG. 3 is a sectional view taken along the line III-III of FIG. 1 (a), and FIG. It is a perspective view.

FIG. 1 relates to a state in which the nozzle main body protrudes, and shows the cylinder tip side of the nozzle and the nozzle main body.

The hot water washing nozzle has a cylinder 40 made of synthetic resin and a nozzle body 42 which can be protruded from the tip side of the cylinder 40, and the nozzle body 42 is attached to the cylinder 40 in a direction of retreating into the cylinder 40. A return spring 48 is provided. A knob 42b is provided on the tip end surface of the nozzle body 42.

A first jet port 44 and a second jet port 46 are provided on the upper surface on the tip side of the nozzle body 42. The first ejection port 44 has a relatively large diameter, and is arranged near the tip of the nozzle body 42. Second spout 46
Is disposed on the rear side of the first ejection port 44. The diameter of the second jet port 46 is smaller than that of the first jet port 44. The number of holes of the second ejection port 46 is larger than the number of holes of the first ejection port 44.

A valve body 50 is disposed at the distal end side of the nozzle body 42 to open only one of the first and second jet ports 44 and 46 and close the other. The valve body 50 has a substantially annular shape and is sized to fit into the inner peripheral surface of the nozzle main body 42 with a slight gap therebetween. In the front-rear direction.

The cross-sectional shape of the tip end of the nozzle body 42 is non-circular, as shown in FIG. 3. This is because the tip opening 40a of the cylinder 40 has the same non-circular shape. This is to prevent rotation around the axis and always direct the ejection ports 44 and 46 upward. The valve body 50 has a non-circular shape (an annular shape having flat upper and lower surfaces) following the inner peripheral surface of the nozzle body 42 having the non-circular cross-sectional shape.

In order to move the valve body 50 back and forth, the valve body 50 is connected to an iron core 54 via a linear body 52. The linear body 52 is made of a rigid wire or a thin rod.

The iron core 54 has an annular shape, and is disposed in the rear portion of the nozzle body 42 so as to be movable in the front-rear direction.
Radial members 50a and 54a are laid in the valve body 50 and the iron core 54 in the diameter direction, respectively, and the linear body 52 is connected and fixed to the radial members 50a and 54a.

At the rear end of the nozzle body 42, a flange portion 58 is provided which protrudes both radially outward and inward.

The iron core 54 is urged by a return spring 60 so as to be slightly pressed against the flange portion 58.

To advance the iron core 54, a solenoid 56 is wound around the outer periphery of the cylinder 40. The solenoid 56 is disposed forward of the iron core 54 that has retreated to the retraction limit.

On the inner periphery of the cylinder 40, there is formed a stopper step 62 with which the outer periphery of the flange 58 abuts.
Although not shown, the cylinder 40 is similar to the conventional example shown in FIG.
Hot water is supplied into the cylinder 40 from a water supply port provided on the rear side of the cylinder. When the nozzle body 42 moves forward by this water supply pressure, the flange 58 comes into contact with the step 62 and stops.

A rinse port 64 is provided near the tip of the cylinder 40. When the nozzle body 42 moves backward, warm water is supplied into the cylinder 40 from the rinse port 64. This hot water is supplied to the tip opening 4 of the cylinder 40.
It flows out from between Oa and the outer periphery of the nozzle body 42, and cleans the outer peripheral surface of the nozzle body 42.

In the hot water washing nozzle configured as described above, when hot water is supplied into the cylinder 40 from the water supply port at the rear end of the cylinder 40, the pressure of the hot water into the flange 5
The nozzle body 42 moves forward until 8 contacts the step 62. When power is not supplied to the solenoid 56,
The iron core 54 is in a retracted state in contact with the flange portion 58,
The valve body 50 closes the second ejection port 46 and opens the first ejection port 44. Therefore, the hot water is jetted from the first jet port 44. As described above, since the first ejection port 44 has a relatively large hole diameter and a relatively small number, the relatively large ejection water stream is ejected from the first ejection port 44 with a strong water force, and the buttocks of the human body are strongly washed. .

By energizing the solenoid 56 before, during, or after the nozzle body 42 advances,
In the nozzle body 42 that has been advanced, the iron core 54 is moved by the magnetic force of the solenoid 56 so that the step portion 6 on the inner peripheral surface of the nozzle body 42 is
6. Move forward until it touches 6. With the advance of the iron core 54, the valve body 50 also moves forward via the linear body 52, thereby opening the second ejection port 46 and closing the first ejection port 44. Thus, the second jet port 46 having a small hole diameter and a large number of holes is jetted with relatively weak water force, and the buttocks of the human body are mildly washed.

Of course, by switching between energizing and stopping energizing the solenoid 56 during the cleaning of the buttocks,
The ejection of the first ejection port 44 and the ejection of the second ejection port 46 can be switched.

In the above embodiment, the iron core 54 is moved forward and backward to move the valve body 50 forward and backward. However, a wire that can be wound as the linear body 52 is used, and a winding shaft driven by a motor is provided on the rear side of the cylinder 40. May be provided, and the valve body 50 may be advanced and retracted by winding and unwinding the wire.

The hot water washing nozzle of the present invention can be applied to both a shower nozzle and a bidet nozzle.

[0035]

As described above, according to the hot water washing nozzle of the present invention, it is possible to switch the ejection port on the tip end side of the nozzle body with a relatively simple configuration. Further, a sufficient amount of jetted water can be obtained without increasing the diameter of the nozzle body.

[Brief description of the drawings]

1A and 1B show a hot water washing nozzle according to an embodiment, and FIG. 1A is a longitudinal sectional view of the nozzle in a longitudinal direction, and FIG.
The figure is a perspective view of a valve body and an iron core.

FIG. 2 is a cross-sectional view taken along the line II-II of FIG. 1 (b).

FIG. 3 is a sectional view taken along the line III-III of FIG. 1 (a).

FIG. 4 is a perspective view of a tip portion of the nozzle body.

FIG. 5 is a perspective view of a conventional hot water cleaning nozzle of a hydraulic advance type.

[Explanation of symbols]

 10 First cleaning nozzle 20 Second cleaning nozzle 40 Cylinder 42 Nozzle body 44 First ejection port 46 Second ejection port 48 Return spring 50 Valve element 52 Linear body 54 Iron core 56 Solenoid 58 Flange 60 Return spring 62, 66 Step

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Ken Takamata 5-1-1 Koiehonmachi, Tokoname-shi, Aichi Prefecture Inax Corporation (72) Inventor Takeshi Shihoda 5-1-1 Koiehonmachi, Tokoname-shi, Aichi Co., Ltd. Inside Inax (72) Inventor Hiroyasu Fukaya 5-1-1 Koie Honcho, Tokoname-shi, Aichi Prefecture Inax Corporation (72) Inventor Nobuyuki Tanaka 5-1-1 Koie-Honcho, Tokoname-shi, Aichi Prefecture Inax Corporation (72) Invention Person Masato Takeda 5-1-1 Koiehonmachi, Tokoname-shi, Aichi F-term in Inax Corporation (reference) 2D038 JA01 JA05

Claims (4)

[Claims] 1. A nozzle, comprising: a cylinder; and a nozzle body which can protrude from a tip side of the cylinder, wherein a jet port for jetting hot water is provided on an upper surface on a tip side of the nozzle main body. In a hot water washing nozzle having a first ejection port near the tip of the nozzle body and a second ejection port on the rear side of the first ejection port, the first ejection port and the second ejection port are provided in the nozzle body. A hot water washing nozzle comprising a valve body for switching between open and closed states. 2. The valve body according to claim 1, wherein the valve body is disposed at a front end of the nozzle body so as to be movable in the front-rear direction, and an upper surface of the valve body is slidable on an upper surface of an inner surface of the nozzle body. A hot water washing nozzle characterized in that it can be in a closed state of an outlet overlapping the outlet. 3. The hot water washing nozzle according to claim 2, wherein a front end of a linear body is connected to the valve body, and a rear end side of the linear body is connected to a driving member. 4. The hot water washing nozzle according to claim 3, wherein the driving member is a magnetic body, and a solenoid for moving the magnetic body is arranged on an outer periphery of the cylinder.