JPH06306914A - Automatic flush closet device - Google Patents

Abstract

PURPOSE:To sense feces or urine and to effect reliable detection of a seating state to discharge washing water from a water tank. CONSTITUTION:An automatic flush closet device comprises a water tank 15 a water discharging means disposed to the water tank 15 and discharging a quantity of washing water responding to feces or a quantity of washing water responding to urine; a closet seat 14 disposed on the upper surface of a closet; a seating switch 16 to detect seating of a user to the closet seat 14 by means of a load exerted on the closet seat 14; a man detecting sensor to detect the presence of a user; and a control means to receive outputs from the seating switch 16 and the man detecting sensor and control operation of the water discharging means. The control means is operated to discharge washing water in a quantity necessary to feces by means of the water discharging means when seating is detected by the seating switch 16 and discharge an amount in a quantity necessary to an urine by means of the water discharging means when seating is not detected by the seating switch 16.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic flush toilet device, and more particularly, an automatic flush toilet device capable of controlling the amount of flush water to be discharged by determining whether it is a large-use or small-use toilet. The present invention relates to a flush toilet device.

[0002]

2. Description of the Related Art As a prior art relating to the present invention, an automatic flush toilet device disclosed in Japanese Patent Laid-Open No. 64-52928 is known. As shown in FIG. 8, in this device, the state of the user is judged by the distance detection sensor 2 arranged in the water tank 1. For example, when the user M is standing in the area a near the toilet bowl 3, since the user M is standing, it is determined that the user is pissing,
From the water tank 1, the amount of wash water suitable for urine is supplied to the toilet 3
Is discharged to. Also, when the user M is sitting in the area b for only a short time, it is determined that it is urine, and the amount of water suitable for urine is discharged. Further, when the user M has been sitting in the area b for a long time, it is determined that it is a stool, and the water tank 1 discharges a large amount of wash water suitable for the stool.

[0003]

In the above distance detecting sensor, an optical signal is transmitted and received from the water tank 1 toward the front. However, although not shown in the figure, the distance detection sensor is actually hidden by the toilet lid provided on the upper surface of the toilet seat, and even if the user is standing in the area a, the distance sensor b You may misunderstand that you are in the area and cannot judge the situation correctly. It is also possible to install the distance detection sensor at an oblique position where it is not obstructed by the toilet lid, instead of in front of the user, but in this case, the optical signal of the distance detection sensor is emitted obliquely, so the standing state It is extremely difficult to detect both the seated state and the seated state.

Therefore, it is a technical object of the present invention to provide an automatic flush toilet device which determines whether the urine is urinal or urine, and reliably detects the seated state to discharge the flush water from the water tank.

[0005]

[Constitution of the invention]

[0006]

The technical solution provided in the present invention for solving the above-mentioned problems is a water tank and a flush water amount or a small amount of flush water which is disposed in the water tank and corresponds to a toilet bowl. Water discharge means for discharging the amount of washing water corresponding to the toilet, a toilet seat arranged on the upper surface of the toilet, a seating detection means for detecting the seating of the user on the toilet seat by the load applied to the toilet seat, and the user's seat A person detecting means for detecting the presence,
The control means controls the operation of the water discharge means by receiving outputs from the seating detection means and the person detection means, and the control means controls the water discharge means to be large when the seating detection means detects the seating. When the person detecting means detects the user and the seating detecting means does not detect seating, the water discharging means discharges the quantity of cleaning water required for urinal use. It is an automatic flush toilet device characterized by making it.

[0007]

When the presence of the user is detected by the person detecting means and the seating detecting means detects that the load of the user is applied to the toilet seat, the control means determines that it is a stool, Cause the water discharge means to discharge a suitable amount of water for heavy use. In addition, the presence of the user is detected by the human detection means,
When the seating detection means does not detect the load of the user, it is determined that it is urine, and the water discharge means is caused to discharge the amount of water suitable for the urination.

In this way, since it is determined that the user is sitting by the load applied to the toilet seat, the sitting state can be reliably determined, and the standing state can also be reliably detected by the combination of the signals emitted by the person detecting means. It will be possible.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described with reference to FIGS. Behind the toilet bowl 11, a water tank 15 for discharging flush water to the toilet bowl 11 is placed. Also, toilet bowl 11
The casing 12 is placed on the upper rear surface of the casing 12, and the casing 12 is pivotally supported by the rear ends of the toilet lid 13 and the toilet seat 14, respectively.

A seating switch 16 for detecting whether or not the user is seated on the toilet seat 14 is disposed on the side of the casing 12. FIG. 2 shows a sectional view of the seating switch 16. The seating switch 16 detects that the user's load is applied to the toilet seat 14, and in the present embodiment, the seating switch 14 is used to move downward due to the load. As shown in FIG. 2, boss portions 17 and 18 projecting downward are formed in the casing 12.
A bracket 19 is fixed to 7 and 18. The bracket 19 is provided with a pivotally supporting portion 20 for rotatably supporting the pivoting shaft 14a of the toilet seat 14 so as to be movable in the downward direction. The upper end of the abutment is always lifted upward by abutting on the pivot portion 20. A pressing portion 20a is formed on the pivot portion 20, and the pressing portion 20a has a switch button 23a (FIG. 3) of a switch portion 23 disposed on the bracket 19 when the pivot portion 20 is raised.
Is pressed from below.

The seating switch 16 has a signal line 24 (FIG. 1).
Is connected to a CPU 35 (FIG. 5) provided in an automatic water washing apparatus body 25 (hereinafter referred to as apparatus body 25) provided on the side surface of the water tank 15. In addition, as shown in FIG.
Is provided. The human detection sensor 26 includes a light emitting unit 26.
a and a light receiving portion 26b (FIG. 5), the light emitting portion 26a
The optical signal is transmitted to the front side of the toilet bowl. The optical signal reflected to the user is received by the light receiving unit 26b, and further the CPU
35 is transmitted.

The apparatus main body 25 is fixed to the water tank 15 through a mounting bracket 27, but the mounting bracket 27 projects into the water tank 15 to rotate the rotary solenoid 28.
I am wearing. One end of a chain 29 is connected to the arm portion 28a of the rotary solenoid 28. Further, the bottom 15a of the water tank 15 has a drain port 31 communicating with a drain pipe 30 for introducing flush water to the toilet 11, but the other end of the chain 29 described above closes the drain port 31. It is connected to the ball valve 32.

In this way, when the rotary solenoid 28 operates, the ball valve 32 is lifted via the chain 29, but in the present embodiment, the ball valve 32 is also opened by the manual lever 33. An operating lever 33a is formed on the other end side of the manual lever 33, and a ball valve 32 is connected to the operating lever 33a via a chain 34. Then, when the user rotates the manual lever 33, the operating shaft 33a pulls up the chain 34 and the ball valve 32 to open the drainage port 31.

The manual lever 33 is provided with a magnet 36a of a manual detection sensor 36. The manual detection sensor 36 detects that the user has rotated the manual lever 33, and the movement of the magnet 36 a that rotates with the rotation of the manual lever 33 is the same as that of the water tank 1.
The Hall ICs 36b and 36c (FIG. 6) arranged in the position 5 are used for detection. Hall IC 36b
Detects that the manual lever 33 has rotated counterclockwise in FIG. 6 to instruct to discharge a large amount of water, and the Hall IC 36
In c, the manual lever 33 is rotated clockwise to detect that a small amount of water has been discharged. The Hall ICs 36b and 36c are connected to the CPU 35 by the signal line 37.
It is designed to output a signal to. Hall IC36
When b and 36c detect the magnet 36a, flags F1 and F2 described later are set to "1" and are stored.

Next, the operation of this embodiment will be described with reference to the flowchart of FIG.

First, at step 40, the flags F1 and F2 indicating whether or not the user has used the manual lever 33 are cleared to "0". In step 41, it is determined whether or not the human detection sensor 26 has detected the user entering the toilet. Step 4 until the user enters the room
Loop 1 When the user enters the toilet, the optical signal transmitted from the light emitting section 26a of the human detection sensor 26 is reflected by the user. The light receiving unit 26
b receives and notifies the CPU 35 that the user has entered the room. Thus, when the entry of the user is detected, the routine proceeds to step 42, where it is determined whether the human detection sensor 26 still detects the user, that is, whether the user has left the room. Human detection sensor 26
Is detected by the user, the process proceeds to step 43,
In step 43, it is determined whether the user is seated on the toilet seat 14.

Here, since the user does not use the toilet seat 14 during urine, the process returns to step 42, and steps 42 and 43 are looped until the user leaves the room. When the user leaves the room, the light receiving unit 26b of the human detection sensor 26 no longer receives the reflected light, the CPU 35 detects the exit, and step 44 is executed. In step 44, it is determined whether the manual lever 33 has been operated after the user entered the room. When the user operates the manual lever 33 to discharge a large amount of water, the Hall IC 36b detects this, and the flag F1 is set to "1", and a small amount of water is discharged. Since the Hall IC 36c detects this, "1" is set in the flag F2. If "1" is set in at least one of the flags F1 and F2 in step 44, it is determined that the cleaning of the toilet 11 has been completed, and the routine ends. If both flags are "0", the rotary solenoid 28 is operated in step 45 to rotate the arm 28a small.
As a result, the ball valve 32 is pulled up, and a small amount of water suitable for small convenience is discharged to the toilet bowl 11.

Next, the case where the seating is detected in step 43 will be described. When the user sits on the toilet seat 14,
The toilet seat 14 is pressed downward by the load applied by the user. Therefore, the pivotal support portion 20 supporting the rotating shaft 14a of the toilet seat 14 moves downward against the urging force of the spring 21, and is in the state shown in FIG. In this way, the pressing portion 20a of the pivot portion 20 is separated from the switch portion 23, so that the switch button 23a of the switch portion 23 is turned off and seating is detected. When the seating is detected in step 43, step 46 is looped until the seating is detected in step 46. When the user leaves the seat, the support portion 20 is moved upward by the biasing force of the spring 21 and the switch button 23a is turned on again to detect the seat removal. In step 46, the seat removal is detected. Then,
Go to step 47. In step 47, it is detected whether the user actuates the manual lever 33 as in step 44. If at least one of the flags F1 and F2 is "1", the routine is ended, and if both are "0", step 48 is executed. Then, the rotary solenoid is operated to rotate the arm 28a largely. As a result, the ball valve 32 is pulled up higher than during urination, and a large amount of water suitable for great convenience is discharged to the toilet bowl 11.

In this embodiment, when the manual lever 33 is used, the rotary solenoid 28 does not operate again, so that excess water does not flow and water can be saved.

In this embodiment, the rotary solenoid 28 does not operate regardless of whether the manual lever 33 is used for large use or small use. If it is only used for water, a large amount of water can be discharged again.

[0021]

According to the present invention, since it is judged that the user is seated by the load applied to the toilet seat, the seated state is surely judged, and the standing state is surely made by the combination of the signals emitted by the human detecting means. Can also be detected.

Further, by detecting the seating by the load applied to the toilet seat, even if it is located on the upper surface of the toilet seat by the work such as cleaning, it is possible to solve the conventional problem using the optical sensor that determines that this is the seating. It does not cause waste water to be discharged to the toilet bowl.

[Brief description of drawings]

FIG. 1 shows a side view of an automatic flush toilet device according to an embodiment of the present invention.

FIG. 2 shows a state before a user sits on a toilet seat in the seating switch of this embodiment.

FIG. 3 shows a state in which a user is seated on a toilet seat in the seating switch of this embodiment.

FIG. 4 is a cross-sectional view of a water tank in which the automatic flush toilet device of the water embodiment is provided.

FIG. 5 is a block diagram showing the relationship between each detection unit and the CPU of this embodiment.

FIG. 6 shows a manual detection sensor of this embodiment.

FIG. 7 is a flowchart showing the operation of the present embodiment.

FIG. 8 shows a side view of a conventional automatic flush toilet device.

[Explanation of symbols]

 11 Water Tank 14 Toilet Seat 16 Seating Switch (Seating Detection Means) 26 Human Detection Sensor (Human Detection Means) 28 Rotating Solenoid (Water Discharging Means) 32 Ball Valve (Water Discharging Means) 35 CPU (Control Means)

Claims (1)

[Claims] 1. A water tank, a water discharge means disposed in the water tank for discharging a flush water amount corresponding to a large-scale feces or a flush water amount corresponding to a small-use feces to the toilet bowl, and disposed on the upper surface of the toilet bowl. A toilet seat, a seating detection means for detecting the seating of the user on the toilet seat by the load applied to the toilet seat, a person detection means for detecting the presence of the user, and outputs from the seating detection means and the person detection means. Receiving means for controlling the operation of the water discharge means, the control means, when the seating detection means detects the seat, the water discharge means to discharge the amount of wash water required for heavy toilet, An automatic flush toilet device characterized in that when the person detecting means detects a user and the seating detecting means does not detect sitting, the water discharging means discharges the amount of wash water required for urinal use.