JP2001323539A - Warm-water washing apparatus, nozzle for use therein, and nozzle main body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve a problem of cool feel caused by remaining water at the tip of a nozzle main body. SOLUTION: When warm water is fed into a cylinder 44, the nozzle main body 42 advances due to hydraulic pressure of the warm water while compressing a return spring 50, and the warm water is upward spouted from spout holes 66, to thereby carry out warm-water washing of buttocks of a human body. At this time, a valve plate portion 76 is pressed to a rim of a drain hole 68 by hydraulic pressure to closes the same, and therefore the warm water does not flow from the drain hole 68. When feeding of warm water to the cylinder 44 is stopped, the nozzle main body 42 withdraws into the cylinder 44 due to a pressing force of the return spring 50. When withdrawal of the nozzle main body 42 into the cylinder 44 is completed, a stopper 74 of a valve body 70 abuts on a projection 54 of the cylinder 44, and the valve body 70 is raised to open the drain hole 68. Thus, remaining water in the nozzle main body 42 flows out of the nozzle main body 42.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot water washing device (also referred to as a sanitary washing device, a local washing device, etc.) for washing a human buttocks with hot water. The present invention also relates to a nozzle and a nozzle body of the hot water cleaning device. More specifically, the present invention relates to an apparatus having a mechanism for draining residual water at the tip of a nozzle body.

[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. Note that, instead of such a mechanism for advancing the nozzle body by water pressure, a hot water cleaning device employing a driving device such as a motor is also used. The present invention can be applied to both a hydraulic advance type and a drive type.

[0003] A conventional example of the hot water washing apparatus having the above-mentioned water pressure advance type nozzle will be described with reference to FIG.

[0004] The hot water cleaning apparatus includes a first cleaning nozzle 10.
And a second cleaning nozzle 20. Each cleaning nozzle 1
0 and 20 are cylinders 12 and 22,
Nozzle bodies 14 and 24 protruding from the tip of the nozzle body 22 are provided, and hot water jet holes 14a and 24a (24a is not shown in FIG. 6) on the upper surface of the tip body of the nozzle bodies 14 and 24
Is provided. Further, knobs 14b, 24b are provided on the distal end surfaces of the nozzle bodies 14, 24, and the nozzle bodies 14, 24 can be pulled out by gripping the knobs 14b, 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 for anal washing (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.

The nozzle body 1 of the nozzles 10, 20
In nozzles 4 and 24, the nozzle body 24 is slightly longer, and the position of the ejection hole 24a when the nozzle body 24 is protruded to the forward limit is the ejection when the nozzle body 14 is protruded to the forward limit. It is configured to be slightly forward of the position of the hole 14a.

In a hot water washing apparatus, generally, as shown in FIG. 6, the opening shapes of the distal ends of the cylinders 12 and 22 are made non-circular, and the outer cross section of the nozzle body (in the direction of the nozzle axis) (A cross-sectional shape perpendicular to this) is non-circular. This is to prevent the nozzle main body from rotating around its axis, and to always direct the jet ports 14a and 24a upward.

Although the inner surfaces of the cylinders 12 and 22 have a cylindrical shape, the opening at the cylinder tip is made non-circular by providing two projections inside the tips of the cylinders 12 and 22.

[0011]

SUMMARY OF THE INVENTION Nozzle bodies 14, 24
Since the hot water jetting holes 14a, 24a are provided on the upper surfaces of the nozzle bodies 14, 24, when the hot water jetting is stopped and the nozzle bodies 14, 24 recede into the cylinders 12, 24, as shown in FIG. Then, water remains on the tip side of the nozzle bodies 14 and 24. When this cold residual water spouts from the orifices 14a and 24a and hits the buttocks during the next washing of the buttocks, the user feels a considerable cold sensation because it is a small but initial contact. .

An object of the present invention is to eliminate the cooling sensation caused by the residual water at the tip of the nozzle body.

[0013]

SUMMARY OF THE INVENTION A nozzle body of a nozzle of a hot water cleaning apparatus of the present invention is installed in a Western-style toilet bowl and blows hot water toward a human body. A drain hole is provided on the lower surface on the tip side.

The nozzle of the present invention is installed in a Western-style toilet bowl,
A nozzle of a hot water washing apparatus for ejecting hot water toward a human body, the nozzle body of the present invention serving as the nozzle body in a nozzle of the hot water washing apparatus having a cylinder and a nozzle body that can protrude forward from the cylinder. Is adopted.

In the nozzle body and the nozzle, the residual water at the tip of the nozzle body is discharged from the drain hole, so that the residual water is prevented from spouting toward the buttocks at the beginning of washing the buttocks.

According to the present invention, when the nozzle body projects from the cylinder and blows out hot water, the pressure of the hot water closes the water draining hole, and when the nozzle body retreats into the cylinder, the water draining hole is closed. It is preferable to provide a valve body to be opened. With this configuration, it is possible to prevent the hot water from flowing downward from the drain hole during the hot water washing operation, and thus waste the hot water.

The valve body is such that when the nozzle body is retracted into the cylinder, the lower end of the valve body is pushed up against the lower inner surface of the tip of the cylinder, thereby opening the drain hole. Is preferred. In this way, it is possible to reliably drain the residual water.

Further, by providing an elastic body for urging the valve body in the valve closing direction, outflow of warm water from the drain hole during the warm water washing operation can be reliably prevented.

The hot water washing apparatus of the present invention is a hot water washing apparatus which is installed in a Western-style toilet and has a nozzle for jetting hot water toward a human body, and adopts such a nozzle as the nozzle.

[0020]

FIG. 1 is a sectional view of a tip of a nozzle according to an embodiment, FIG. 2 is an enlarged sectional view of a tip of a nozzle body in FIG. 1, and FIG. 3 is a perspective view of a valve body. FIG.

The nozzle 40 has a nozzle body 42 and a cylinder 44 into which the nozzle body 42 is inserted. The nozzle body 42 includes a base body 46 and the base body 4.
6 attached to the end body 48. Proximal body 46
A piston portion (not shown) is provided at a rear end of the return spring 50, and a rear end of the return spring 50 is in contact with the piston portion.

The return spring 50 comprises a coil spring surrounding the nozzle body 42. Protrusions 52 and 54 project inward from the top and bottom at the tip of the cylinder 44, and the front end of the return spring 50 contacts the protrusions 52 and 54.

A small-diameter cylindrical projection 56 projects coaxially from the distal end of the base end body 46, and the rear end side of the distal end body 48 fits over the projection 56. The outer peripheral surface of the projection 56 has a groove 6
0 is provided, and the O-ring 62 is mounted in the recess 60. The O-ring 62 watertightly and tightly contacts the inner peripheral surface of the distal end member 48, so that the distal end member 48 is tightly fitted to the projection 56, and the distal end member 48 is firmly connected to the proximal end member 46. Note that the tip body 48 can be detached from the projection 56 by forcibly pulling the tip body 48. However, the tip body 48 can be disengaged from the projection 5 only under normal water pressure.
Never drop out of 6. A knob 64 protrudes from the distal end surface of the distal end body 48.

The base body 46 is a hollow cylinder, and the base body 48 is
Is a cap shape with a closed end surface. This tip body 48
The hot water outlet 66 is provided on the upper surface of the heater. Tip body 4
A drain hole 68 is provided on the lower surface on the distal end side of 8, and a valve body 70 is inserted into the drain hole 68.

The valve body 70 includes a valve shaft 72 inserted into the drain hole 68 and a stopper 74 disposed outside the distal end body 48.
And a valve plate 76 disposed in the distal end body 48.
The tip body 4 is placed so that the valve plate 76 covers the drain hole 68.
The drainage hole 68 is closed by being pressed against the periphery of the drainage hole 68 on the inner surface of the inner surface 8. As shown in FIGS. 1 and 2, when the stopper 74 comes into contact with the convex portion 54 and is pushed up, the valve plate portion 76 is separated from the inner peripheral surface of the distal end body 48, and the drain hole 68 is opened.

The diameter of the valve shaft 72 is sufficiently smaller than that of the drain hole 68. The valve plate 76 has a larger diameter than the drain hole 68.
The stopper 74 has a triangular plate shape having one side of a triangle larger than the diameter of the drain hole 68. This stopper 74
Is smaller than the diameter of the drain hole 68.

The valve body 70 is made of a slightly soft synthetic resin, and is inserted into the drainage hole 68 from the inside of the tip body 48 so as to elastically press and compress the stopper 74. In this embodiment, the nozzle body 42 is connected to the distal end body 48 and the proximal end body 46.
The operation of inserting the valve body 70 into the drain hole 68 of the distal end body 48 can be performed relatively easily.

The hot water washing apparatus of the present invention is provided with such a nozzle. Other configurations of the hot water cleaning device can be as shown in FIG. 6, for example.

In the hot water washing apparatus having the nozzle configured as described above, when hot water is supplied into the cylinder 44, the nozzle pressure causes the nozzle body 42 to move forward while compressing the return spring 50, and the hot water is discharged from the ejection hole 66. Squirts upward to clean the human hips with warm water. In this case, the valve plate 76 is pressed against the edge of the drainage hole 68 by water pressure, and the drainage hole 68 is closed, so that hot water does not flow out of the drainage hole 68.

When the supply of hot water to the cylinder 44 is stopped,
The nozzle body 42 is pressed by the pressing force of the return spring 50.
Is retracted into the cylinder 44. When the nozzle body 42 finishes retreating into the cylinder 44, the stopper 74 of the valve body 70 comes into contact with the projection 54 of the cylinder 44, the valve body 70 is pushed up, and the drain hole 68 is opened. Thereby, the residual water in the nozzle main body 42 flows out of the nozzle main body 42. Therefore, in the next buttock cleaning operation, it is possible to prevent the cold residual water from spouting from the spouting holes 66.

FIG. 4 is a sectional view of the tip of a nozzle 40A according to another embodiment of the present invention. In this embodiment, a coil spring 82 is provided as an elastic body that urges the valve body 80 provided in the drain hole 68 in the valve closing direction. A bracket 84 protrudes from the inner surface of the distal end body 48, and the valve body 80 is held by the bracket 84 so as to be able to advance and retreat. The coil spring 82 is interposed between the bracket 84 and the valve plate of the valve body 80 in a stored state.

Other configurations of the nozzle 40A are the first and second.
It is the same as the nozzle 40 in FIG. 2, and the same reference numerals indicate the same parts.

In this nozzle 40A, the cylinder 4
When hot water is supplied into the nozzle 4, the nozzle body 42 moves forward and hot water spouts from the spouting holes 66, and the human hips are cleaned with hot water. At this time, the valve plate of the valve body 80 is pressed against the periphery of the drainage hole 68 by the water pressure and the pressing force of the spring 82, and the drainage hole 68 is closed.

When the supply of hot water to the cylinder 44 is stopped,
Due to the urging force of the return spring 50, the nozzle body 4
2 retracts into cylinder 44. Then, the valve body 80 comes into contact with the convex portion 54 and is pushed up, and the drainage hole 68 is opened, so that the residual water on the distal end side in the nozzle body 42 is discharged.

[0035]

As described above, according to the present invention, since the residual water in the nozzle body is discharged, it is possible to prevent the cold nozzle residual water from being ejected at the beginning of the hot water cleaning operation.

[Brief description of the drawings]

FIG. 1 is a sectional view of a nozzle of a hot water cleaning apparatus according to an embodiment.

FIG. 2 is an enlarged cross-sectional view of a tip portion of the nozzle main body of FIG.

FIG. 3 is a perspective view of the valve body of FIGS.

FIG. 4 is a cross-sectional view of a nozzle according to another embodiment.

FIG. 5 is a sectional view of a conventional nozzle body.

FIG. 6 is a perspective view of a conventional hot water cleaning device.

[Explanation of symbols]

 Reference Signs List 40 nozzle 42 nozzle body 46 base end body 48 tip end body 52, 54 convex part 66 ejection hole 68 drainage hole 70, 80 valve body

 ──────────────────────────────────────────────────の Continued on the front page (72) Inventor Toshiaki Takaba 5-1-1 Koiehonmachi, Tokoname-shi, Aichi Prefecture Inax Corporation (72) Inventor Katsunori 5-1-1 Koiehonmachi, Tokoname-city, Aichi Prefecture Inax Corporation (72) Inventor Toshio Hino 5-1-1 Koie Honcho, Tokoname, Aichi Prefecture Inax Corporation (72) Inventor Akiya Ohira 5-1-1 Koie Honcho, Tokoname City, Aichi Prefecture Inax Corporation (72) Invention Person Takashi Minami 5-1-1 Koiehonmachi, Tokoname-shi, Aichi Prefecture Inax Corporation (72) Inventor Takeshi Shihoda 5-1-1 Koiehonmachi, Tokoname-shi, Aichi Prefecture Inax Corporation (72) Inventor Tsutomu Awata Tokuname Aichi Prefecture 5-1-2, Koiehonmachi, Ichiichi Inax Corporation (72) Inventor Junjiro Ebitani Tokoname, Aichi Koiehon-cho 5-chome address 1 stock company in Inakkusu (72) inventor Hayato Hirasawa Aichi Prefecture Tokoname Koiehon-cho 5-chome address 1 stock company Inakkusu in the F-term (reference) 2D038 JA05 JF05

Claims (6)

[Claims] 1. A nozzle body of a nozzle of a hot water washing device which is installed in a Western-style toilet and jets hot water toward a human body, wherein a drain hole is provided on a lower surface on a tip side of the nozzle body. The nozzle body of the cleaning device. 2. A nozzle of a hot water washing device installed in a Western-style toilet and jetting hot water toward a human body, the nozzle having a cylinder and a nozzle body protruding forward from the cylinder. A nozzle for a hot water washing apparatus, wherein the nozzle body is the nozzle body according to claim 1. 3. The method according to claim 2, wherein, when the nozzle body projects from the cylinder and jets out hot water, the water drainage hole is closed by the pressure of the hot water, and the nozzle body is retracted into the cylinder when the nozzle body retreats into the cylinder. A nozzle for a hot water washing device, wherein a valve for opening a drain hole is provided in the drain hole. 4. The drainage hole according to claim 3, wherein when the nozzle body is retracted into the cylinder, a lower end of the valve body is pushed up against a lower inner surface of a tip portion of the cylinder, thereby opening a drain hole. A nozzle for a hot water cleaning device, characterized in that: 5. The nozzle of a hot water washing device according to claim 3, further comprising an elastic body for urging the valve body in a valve closing direction. 6. A hot water washing device which is installed in a Western-style toilet and has a nozzle for jetting hot water toward a human body, wherein the nozzle is the nozzle according to any one of claims 2 to 5. Hot water cleaning equipment.