JP2600563Y2 - Toilet bowl with local cleaning device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a toilet having a local cleaning device for cleaning a human body part.

[0002]

Background of the Invention In a toilet provided with a local cleaning device for cleaning a local part of a human body, it has recently been considered to automatically open a toilet lid when a human body approaches the toilet.

In this case, it is necessary to detect that the human body has approached the toilet to a certain distance, and as a sensor therefor, a photoelectric sensor, that is, a certain amount of light (infrared rays) is spotwise irradiated in the front direction of the toilet. It is conceivable to use a sensor that detects the amount of light reflected by the human body to detect the presence of the human body.

However, in the case of this type of photoelectric sensor, since the presence or absence of a human body is determined by detecting the amount of light reflected by the human body, the human body may or may not be detected depending on the color of the clothes worn.

[0005] For example, in the case of white clothes, the amount of reflected light increases, whereas in the case of dark clothes, the amount of reflected light is small, and there is a possibility that detection may fail. Thus, if the sensor fails to sense the human body, the toilet lid will not open automatically, leading to inconvenient results.

[0006]

Means for Solving the Problems The present invention has been made to solve such problems. Thus, the invention of the present application has a light emitting unit and a light receiving unit arranged at a fixed distance from the light emitting unit, and the incident angle of the light emitted from the light emitting unit to the light receiving unit reflected by the human body on the light receiving unit. If you provide a human body sensor that determines the distance to the human body based on the
Adjacent to the light emitting part and the light receiving part of the human body sensor
To provide a remote control light receiving section, and
It shall be the light emitting portion of the body sensitive sensor, characterized in that arranged between the light receiving portion.

[0007]

[Effects of the operation and the invention] In the case of a sensor that detects the presence or absence of a human body based on the magnitude of the amount of reflected light from the human body, as described above, the amount of reflected light differs depending on the color of the clothes worn, and therefore the distance to the human body. Is difficult to determine.

However, the human body sensor according to the present invention senses the human body based on the angle of the reflected light incident on the light receiving section, and can determine the distance to the human body.

Therefore, when it is desired to perform a required operation, for example, an automatic opening operation of the toilet lid when the human body approaches the toilet to a certain distance, this can be surely performed by sensing the human body and determining the distance.

[0010] invention of the present application, points so as to place the remote control sensor between the light receiving portion illuminating portion of the body sensitive sensor
It is characterized by .

For example, as shown in FIG. 3, in a toilet 100 with a local cleaning device of a remote control operation type, a remote control light receiving unit 106 for receiving an optical signal from a remote control transmitting unit 104 is provided adjacent to a human body sensor 102. If
Generally, such a remote control light receiving unit 106 is usually arranged next to the human body sensor 102 composed of a light emitting unit and a light receiving unit.

However, the light-emitting portion and the light-receiving portion of the human body sensor are separated from each other by a fixed distance (for example, 30 to 40 m) in order to secure a constant incident angle of the reflected light to the light-receiving portion.
m) It is necessary to separate them, and in addition to this, if the remote control light receiving unit 106 is to be arranged next to the remote control light receiving unit 106, a large space is required to arrange them.

Here, the present invention utilizes a space between the light-emitting part and the light-receiving part of the human body sensor, and arranges the remote control light-receiving part in the space. It can be effectively used, and the human body sensor and the remote control light receiving unit can be compactly assembled.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described in detail with reference to the drawings. In FIG. 1, reference numeral 10 denotes a toilet with a local cleaning device,
Reference numeral 12 denotes a washing nozzle for ejecting washing water.

Reference numeral 14 denotes a window. A filter 16 is disposed in the window 14, and a human body sensor 3 is provided inside the filter 16.
6, the light emitting unit 18 and the light receiving unit 20 are arranged at a fixed interval B (see FIG. 2).

FIG. 2 shows the principle of sensing the human body and determining the distance by the human body sensor 36. In the figure, the light from the light emitting element 22 is applied to the human body through the lens 24, and the reflected light from the human body is incident on the two light receiving elements 28 and 30 of the channel 1 and the channel 2 disposed on the rear side through the lens 26. Image.

At this time, the distance S to the human body, the light emitting unit 18
(Base line length) B between lens and light receiving unit 20, angle θ, lens 2
6, the front-rear distance F between the light receiving elements 28 and 30, the light receiving element 2
Lateral distance D to the incident position of reflected light at 8, 30
The relationship is as follows. tan θ = B / S = D / F

Since the incident position of the reflected light on the light receiving elements 28 and 30 changes depending on the position of the human body, that is, the angle θ,
By obtaining this incident position, the distance S to the human body can be determined.

Since the human body sensor 36 senses the human body based on the principle of triangulation, the presence or absence of the human body and the distance can be accurately determined regardless of the color of the clothes being worn.

In order for the human body sensor 36 to correctly determine the distance S to the human body, it is necessary to provide a constant interval B between the light emitting unit 18 and the light receiving unit 20.

Normally, the space between the light emitting section 18 and the light receiving section 20 is not used at all, but in this embodiment, the space between the light emitting section 18 and the light receiving section 20 is provided with the light from the remote control transmitting section 32. A remote control light receiving unit 34 for receiving a signal is provided. Here, the remote control transmission unit 3
The light receiving unit 2 and the light receiving unit 34 are for remotely controlling the functional units of the local cleaning device and the toilet.

As described above, in this embodiment, the remote control light receiving section 34
Is arranged between the light emitting unit 18 and the light receiving unit 20 of the human body sensor, the space for arranging the human body sensor 36 and the remote control light receiving unit 34 can be reduced, and they can be compactly assembled. .

The embodiment of the present invention has been described in detail above, but this is merely an example. The present invention provides various operations based on, for example, human body detection by a human body detection sensor, for example, the toilet 10.
It is possible to automatically pre-wash the toilet, automatically turn on the light in the toilet room, automatically activate the dummy sound generation device in the toilet room, lock the toilet room automatically, etc. The present invention can be configured in variously modified forms based on the knowledge of those skilled in the art without departing from the gist of the invention.

[Brief description of the drawings]

FIG. 1 is an explanatory view of a toilet with a local cleaning device according to an embodiment of the present invention.

FIG. 2 is an explanatory view of the principle of human body detection and ranging by the human body detection sensor in FIG. 1;

FIG. 3 is a comparative example diagram for explaining advantages of the embodiment shown in FIG. 1;

[Explanation of symbols]

 Reference Signs List 10 Toilet bowl with local cleaning device 12 Cleaning nozzle 18 Light emitting unit 20 Light receiving unit 34 Remote control light receiving unit 36 Human body sensor

Claims (1)

(57) [Scope of request for utility model registration] 1. A light-emitting device comprising: a light-emitting unit; and a light-receiving unit disposed at a predetermined distance from the light-emitting unit, based on an angle of incidence of light emitted from the light-emitting unit and reflected by a human body on the light-receiving unit. Provide a human body sensor that determines the distance to the human body
With the light emitting part and light receiving part of the human body sensor.
A remote control light receiving unit is provided adjacent to the remote control light receiving unit;
Is disposed between the light emitting unit and the light receiving unit of the human body sensor .