JPH042315A - Sterilizing device for closet seat - Google Patents

Abstract

PURPOSE:To enable a closet seat to be disinfected and sterilized almost completely in a short time by setting an ultraviolet ray irradiating device for irradiating the closet seat with the UV ray, and by irradiating the closet seat with the ultraviolet ray from a specified distance. CONSTITUTION:A closet seat 2 and an upper cover 3 are pivotally fitted on a toilet stool main-body 1 and are connected to each other rotatably in the vertical direction. The upper cover 3 has roughly elliptic main-body frame body 3a with an opened lower end, and an ultraviolet ray irradiating lamp 4 fitted in the main-body frame body 3a is formed elliptically along the closet seat 2, and on the internal surface of the main-body frame body 3a, a reflecting plate 5 consisting of aluminum and the like for reflecting ultraviolet ray is fitted. At the released position of the upper cover 3, the ultraviolet ray irradiating lamp 4 is retained in a non-lighting state, and when the cover 3 is set in a closed position, then the ultraviolet ray irradiating lamp 4 is lit only for a few seconds, and the closet seat 2 is irradiated with the ultraviolet ray. Besides, on the bottom section of the upper cover 3, confronted with the closet seat 2, a plate body consisting of the quartz and the like of a high ultraviolet ray transmission factor, and a protective plate 6 with wire gauze of large meshes fitted firmly on are removably fitted, and the ultraviolet ray irradiating lamp 4 is protected, and the fitting section of the lamp 4 is protected by water-proofing.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application 1] The present invention relates to a toilet seat sterilizer for sterilizing a toilet seat in a Western-style toilet bowl.

[Prior Art] Generally, Western-style toilets are constructed by installing a toilet seat on the toilet body, or when in use, the buttocks directly touch the toilet seat. Public restrooms used by many people may be contaminated by bacteria, fungi, viruses, etc., and special hygiene considerations are required. Therefore, various methods for preventing toilet seat contamination have been developed in order to keep the toilet seat clean each time it is used. Therefore, for example, there are products that use cleaning liquid spray to clean and disinfect the toilet seat, paper napkins soaked in cleaning liquid that wipe the surface of the toilet seat, and disposable cover paper that can be used to clean and disinfect the toilet seat. It has been known for a long time that the cables are laid down.

1. Invention or problem to be solved] By the way, when cleaning or disinfecting a toilet seat by directly cleaning it with a cleaning liquid or wiping it off, the toilet seat may be contaminated by wiping it with dry paper after cleaning. Not only does the cleaning fluid have to be dried, which takes time and effort, but it also has the problem of being drained or contaminated as the cleaning fluid is discharged directly from the toilet bowl. There is a limit to the bactericidal effect, and there are currently very few products that have bactericidal properties against all microorganisms. Moreover, such cleaning liquids cannot be expected to exhibit sufficient sterilizing effects after a short period of cleaning.

Furthermore, when the cover paper is placed on the toilet seat, the buttocks do not come into direct contact with the toilet seat, which is preferable from a sanitary standpoint. However, since the toilet seat is usually horseshoe-shaped or oval-shaped, it is extremely difficult, troublesome, and time-consuming to fit the paper cover completely over the toilet seat. Moreover, since the cover paper must be made of water-soluble material because it is poured into the toilet bowl and flushed out after use, it is easily damaged and is inconvenient to handle. Moreover, since the surface is rough, there is also the problem that when you touch your buttocks on this cover paper, you feel uncomfortable. moreover,
There is also the problem that if the cover paper is left attached to the toilet seat after use, it may cause discomfort to the next user.

Also, it may be possible that heating has a sterilizing effect, but for this heating sterilization to actually be effective, it must be heated for a long time, and after heating sterilization, it is necessary to heat it for a long time to the extent that the buttocks can come into contact with the toilet seat. Heat sterilization is also not a viable option for sterilizing toilet bowls, as the time required to cool the toilet bowl must also be taken into consideration.

Therefore, the present inventors conducted research to resolve the drawbacks and problems of the conventional toilet seat contamination prevention method described above, and by obtaining the following knowledge, they were able to complete the present invention. Ta.

That is, first of all, when considering disinfection and sterilization of toilet seats, the most important point is that the disinfection must be done in an extremely short period of time, such as within a few seconds. Moreover, since it is used by an unspecified number of people, it must be easy to handle. Furthermore, there is a risk that microorganisms such as various bacteria, fungi, and viruses may adhere to the toilet seat, and such microorganisms must be completely killed or at least inactivated. Furthermore, since it comes into direct contact with the skin, safety must also be considered.

Considering the above points, the present inventors focused on ultraviolet rays.

In particular, ultraviolet rays act directly on genetic bodies such as DNA and RNA of microorganisms, so they effectively act on all microorganisms including bacteria, fungi, and viruses, and even heat-resistant microorganisms and microorganisms resistant to drugs. It is valid.

However, since this ultraviolet ray is a ray of light, not only does its force acting on microorganisms become weaker in inverse proportion to the square of the distance, but it also does not go around to the shaded areas of obstacles, so it is necessary to disinfect these shaded areas. , cannot be sterilized, and cannot be completely disinfected or sterilized. For this reason, in practice,
At present, there are almost no sterilization devices that use ultraviolet rays, which provide complete sterilization with extremely short irradiation, and have not been put into practical use.

Considering the toilet seat, although the surface of the seat that comes into direct contact with the buttocks is somewhat curved, there are no irregularities or shadows, and the surface is smooth. Therefore, if you use an ultraviolet irradiation device to directly irradiate the toilet seat with ultraviolet rays and set the positional relationship between the ultraviolet irradiation device and the toilet seat appropriately, you can almost completely remove the toilet seat in a very short time. It will be possible to disinfect and sterilize it.

Therefore, an object of the present invention is to provide a toilet seat sterilizer that can easily and almost completely disinfect and sterilize a toilet seat in a very short period of time.

[Means for Solving the Problems 1] In order to achieve the above-mentioned object, the present invention provides an ultraviolet ray irradiation device that irradiates ultraviolet rays toward the surface of the toilet seat in a Western-style toilet in which a toilet seat is attached to the toilet bowl body. It is characterized by the following.

[Function] Normally, the toilet seat is vertically rotatable, and some toilet seats are covered with an upper lid that can be opened and closed. Then, by installing an ultraviolet irradiation device that irradiates the toilet seat with ultraviolet rays and irradiating the toilet seat with ultraviolet rays from a predetermined distance, the toilet seat can be almost completely disinfected and sterilized in a very short period of time. can. Further, after the disinfection and sterilization are completed, the toilet bowl is ready for use by removing the ultraviolet irradiation device from the toilet seat or by separating the toilet seat from the ultraviolet irradiation device.

Embodiment F] Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

First, FIGS. 1 to 3 show a first embodiment of the present invention. In FIG. M3 is pivotally connected to the toilet main body 1 and is connected to be rotatable in the vertical direction.

As shown in FIGS. 2 and 3, the upper lid 3 has a substantially elliptical main body casing 3a with an open bottom end.
An ultraviolet irradiation lamp 4 is installed inside. This ultraviolet irradiation lamp 4 has an oval shape (or horseshoe shape) along the toilet seat 2.
is formed. Further, a reflecting plate 5 made of aluminum or the like is attached to the inner surface of the main body housing 3a to reflect ultraviolet rays. Furthermore, on the bottom facing the toilet seat 2, a protective plate 6 made of a plate made of quartz plate or the like with high ultraviolet transmittance and fixed with a coarse wire mesh is removable, as shown by the dotted line in Fig. 1. is installed on. This protective plate 6 can protect the ultraviolet irradiation lamp 4 and also waterproof the portion to which the ultraviolet irradiation lamp 4 is attached.

The top cover 3 is rotated upward, as shown by the solid line in FIG. 2, and held in an open position away from the top of the toilet seat 2, and in a nearly horizontal state, as shown by the imaginary line. In the open position, the ultraviolet irradiation lamp 4 is kept in a non-lit state, and when it is moved to the closed position, The toilet seat 2 is configured to be irradiated with ultraviolet rays by lighting the ultraviolet irradiation lamp 4 for only a few seconds. In this way, in order to limit the UV irradiation time, a switch and a timer are used to
Alternatively, a switch is actuated on the upper cover 3 when the two are overlapped, and the ultraviolet irradiation lamp 4 is turned on for a time set by a timer. Further, in order to visually recognize that the ultraviolet rays are being irradiated, an indicator lamp 7 is provided on the top cover 3 (or other easily visible position).

This embodiment is constructed as described above, and when using the toilet, first place the upper M3 in the closed position.

As a result, the ultraviolet irradiation lamp 4 is turned on, and the surface of the toilet seat 2 is irradiated with ultraviolet rays, thereby disinfecting and sterilizing the surface. Further, after confirming through the display lamp 7 that the disinfection and sterilization have been completed, if the top cover 3 is lifted upward, the toilet becomes ready for use.

In this way, the toilet seat 2 can be disinfected and sterilized by simply opening and closing the top cover 3, and its operability is extremely good.

By the way, when a person defecates (or urinates), it is difficult to spend a long time disinfecting and sterilizing the toilet seat 2. Therefore, the ultraviolet irradiation time is preferably several seconds or less, and microorganisms such as bacteria, fungi, and viruses adhering to the surface of the toilet seat 2 must be completely killed or at least inactivated. For this purpose, by using an ultraviolet irradiation lamp 4 that can obtain an ultraviolet irradiance of several thousand to tens of thousands of grams W/cm2 on the surface of the toilet seat, and by attaching the ultraviolet irradiation lamp 4 to the upper M3 that covers the top of the toilet seat 2. By irradiating the toilet seat 2 with the ultraviolet irradiation lamp 4 from a position very close to the toilet seat 2, for example from a distance of about 5 cm, the ultraviolet irradiation lamp 4 is only turned on for about 0.3 to 5 seconds, for example. Therefore, the toilet seat 2 can be irradiated with ultraviolet rays to an extent that almost completely kills the microorganisms adhering to it.

Furthermore, since the reflector plate 5 is provided on the inner surface of the main body casing 3a of the upper lid 3 that accommodates the ultraviolet irradiation lamp 4, as mentioned above, at least the part that comes into direct contact with the buttocks for a very short period of time. can be irradiated with sufficient ultraviolet light to completely disinfect and sterilize all necessary areas.

Furthermore, even if you touch your buttocks to the toilet seat 2 after UV irradiation,
It's safe.

Next, FIGS. 4 and 5 show a second embodiment of the present invention. In this embodiment, a toilet seat 11 is mounted on a toilet main body 10 so as to be rotatable in the horizontal direction. being done. The ultraviolet irradiation device 12 is placed at a position where the toilet seat 11 is rotated a predetermined amount from above the toilet main body 10 so that it does not interfere with the use of the toilet. This ultraviolet irradiation device 12 has a linear ultraviolet irradiation lamp 1 installed in a housing 12a with an open bottom end.
When the toilet seat 11 is positioned below the ultraviolet irradiation lamp 13, a sensor or the like detects this and irradiates the surface of the toilet seat 11 with ultraviolet rays for a predetermined period of time. It is now possible to do so.

With this configuration as well, the surface of the toilet seat 11 can be irradiated with ultraviolet rays from a close distance to disinfect and sterilize it by rotating the toilet seat 11 in the horizontal direction.

Furthermore, FIG. 6 shows a third embodiment of the present invention, and this embodiment shows how an ultraviolet irradiation device 21 is disposed behind the toilet main body 20. This ultraviolet irradiation device 21 has an opening/closing door 2 on the side facing the toilet main body 20.
A plurality of ultraviolet irradiation lamps 24 are installed in a box 23 in which a plurality of ultraviolet irradiation lamps 24 are provided. With this configuration, the toilet seat 25 can be moved to the toilet main body 20 with the opening/closing door 22 open.
If the toilet seat 25 is lifted up and rotated and placed in the box 23, the surface of the toilet seat 25 can be irradiated with ultraviolet rays to disinfect and sterilize it.

Note that the ultraviolet irradiation lamp 4.13.24 only needs to be able to efficiently irradiate the entire surface of the toilet seat 2.11.25, and its shape may be oval, horseshoe, or linear. It is possible to use any shape such as a 9-circular shape. Moreover, the number of the wires is not limited to just one, but a plurality of wires may be used. If a plurality of ultraviolet irradiation lamps are used and some of them are kept on at all times, the toilet seat can be heated in winter or the like. Furthermore, in the first embodiment, instead of the protective plate 6, a louver made of an ultraviolet reflecting plate that automatically opens and closes when the top cover 3 is moved up or down, for example, may be provided. Furthermore, by providing a reflective member on the inner surface of the housing 12a in the second embodiment and the box 23 in the third embodiment, the toilet seat can be more efficiently irradiated with ultraviolet rays.

[Effects of the Invention] As explained above, the present invention disinfects the toilet seat by irradiating the surface of the toilet seat with ultraviolet rays.

After being configured to sterilize, the toilet seat can be disinfected and sterilized with an extremely simple operation and in an extremely short time, thereby improving hygiene in toilets etc. used by the public.

[Brief explanation of drawings]

1 to 3 show a first embodiment of the present invention, in which FIG. 1 is an external view showing the overall configuration of a toilet bowl equipped with an ultraviolet irradiation device, and FIG. 2 is the same as that shown in FIG. 3 is a bottom view of the top cover with the protective plate removed; FIGS. 4 and 5 show a second embodiment of the present invention; FIG. An external view showing the overall configuration of the toilet bowl,
FIG. 5 is an explanatory diagram of the configuration of an ultraviolet irradiation device, and FIG. 6 is an external view showing the overall configuration of a toilet bowl equipped with an ultraviolet irradiation device according to a third embodiment of the present invention. 1, 10.20: Toilet bowl body, 2.11.25: Toilet seat,
3: Top lid, 4.13.24: Ultraviolet irradiation lamp, 5 Reflector, 6. Protective plate, 12.21: Ultraviolet irradiation device, 12a
: Housing, 22: Door, 23: Box. Figure Figure Figure Figure Figure

Claims (6)

[Claims] (1) A toilet seat sterilization device, which is equipped with an ultraviolet irradiation device that irradiates ultraviolet rays onto the surface of the toilet seat in a Western-style toilet that has a toilet seat attached to the toilet bowl body. (2) The ultraviolet irradiation device is configured to be movable between a position where it faces the toilet seat at a close distance and a position where it is separated from the toilet seat and opens its upper part. (1) Toilet seat sterilizer. (3) A claim characterized in that an ultraviolet irradiation device is attached to the top lid of the toilet bowl, and when the top lid covers the toilet seat, the ultraviolet ray irradiation device irradiates ultraviolet rays toward the surface of the toilet seat. Toilet seat sterilizer according to item (1). (4) The toilet seat is movable between a position on the toilet seat body and a position away from the toilet seat body, and when the toilet seat is displaced to a position away from the toilet seat body, the ultraviolet irradiation device 2. The toilet seat sterilizer according to claim 1, wherein the toilet seat sterilizer is configured to be located at a lower part of the toilet seat sterilizer. (5) The ultraviolet irradiation device is installed in a housing, the toilet seat can be stored in the housing, and the toilet seat is configured to irradiate the ultraviolet rays with the toilet seat stored in the housing. The toilet seat sterilizer according to claim (1). (6) The toilet seat sterilizer according to any one of claims (1) to (5), further comprising a switch means for operating the ultraviolet irradiation device for a predetermined period of time.