JP2004218326A - Toilet bowl washing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a toilet bowl washing device for properly setting waiting time up to automatic washing after leaving a seat according to use for feces and use for urination. <P>SOLUTION: When a seating user leaves a seat standing up from a stool 14, when preset time passes after a seating sensor 36 does not detect seating, a motor unit 30 is operated. In this case, when a memory of a use form memory of a control circuit 56 is the use for feces, when passing the waiting time set by a waiting time setting switch 52 in the use for feces, large washing is automatically performed. While, when the memory of the use form memory of the control circuit 56 is the use for urination, when the waiting time passes set by the waiting time setting switch 52 in the use for urination, small washing is automatically performed. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a toilet flushing apparatus that automatically flushes flush water to a toilet bowl when a user rises from a toilet seat.
[0002]
[Prior art]
For a long time, a manual flush valve has been used as a flush valve for flushing flush water into a toilet bowl and flushing waste in a toilet bowl to a drain pipe. Automatic cleaning apparatuses that automatically perform cleaning by detecting leaving or the like have been increasingly used.
[0003]
Also in this automatic flushing type water supply system, in order to save water, it is determined whether the toilet bowl is used for large use (use of urine) or small use (use of urine) based on the sitting time of the seating sensor. Japanese Patent Application Laid-Open No. H11-166258 discloses a control method in which a large amount of washing water is supplied (large washing) for large use and a small amount of washing water is supplied (small washing) for small use based on the determination result. It is described in paragraph 0015. In addition, Japanese Patent Laying-Open No. 2002-106022 also describes a similar toilet flushing device.
[0004]
Japanese Patent Application Laid-Open No. 6-306913 describes a toilet flushing apparatus that performs a large flush of a toilet when a washing nozzle for warm water washing of a human hip is used, and a small flush of a toilet when not in use.
[0005]
[Patent Document 1]
JP-A-11-166258 [Patent Document 2]
Japanese Patent Application Laid-Open No. 2002-106022 [Patent Document 3]
JP-A-6-306913
[Problems to be solved by the invention]
In JP-A-11-166258 and JP-A-2002-106022, the flushing of the toilet is started after a preset time has elapsed from the time of leaving the seat, regardless of whether the toilet is used for heavy use or small use. . The set time is 5 seconds in the embodiment of JP-A-11-166258 (FIG. 4 in the same publication), and is 3 seconds in the embodiment of JP-A-2002-106022 (paragraph 0017 in the same publication). .
[0007]
As described above, if the time from leaving the seat to the start of washing is the same in both large use and small use, it may be inconvenient. For example, if the set time is too long, the start of cleaning is delayed, which is inconvenient for a user who wants to visually check the start of cleaning. On the other hand, if the set time is too short, the automatic washing may be started while the hips are lifted and wiped.
[0008]
In a commercially available toilet bowl cleaning device, a changeover switch for switching the set time between 6 seconds and 15 seconds is provided on a remote controller of the toilet bowl cleaning device so that the user can adjust the set time. There are some, but the setting time is common for large use and small use.
[0009]
An object of the present invention is to provide a toilet flushing apparatus that can make the cleaning start set time for heavy use different from the cleaning start set time for small use in view of the above-mentioned conventional technology.
[0010]
[Means for Solving the Problems]
A toilet flushing device according to the present invention (claim 1) includes a flush water supply unit that supplies flush water to a toilet, a detachment detecting unit that detects detachment from a toilet seat, and the detachment detecting unit detects detachment. And a control means for operating the cleaning water supply means when a set time has elapsed after the set time, in the toilet flushing device, a determining means for determining whether the toilet use mode was large use or small use is provided. The control means can individually set the set time for heavy use and the set time for small use.
[0011]
The toilet flushing device according to the present invention (claim 3) includes a flush water supply unit that supplies flush water to the toilet, a seating detecting unit that detects seating from the toilet seat, and the seating detecting unit detects seating. And a control means for operating the cleaning water supply means when a set time has elapsed after the set time, in the toilet flushing device, a determining means for determining whether the toilet use mode was large use or small use is provided. The control means is characterized in that the set time for heavy use is different from the set time for small use.
[0012]
In the toilet bowl washing apparatus of the present invention, for example, as set forth in claim 4, the set time from leaving the seat for small use to the start of washing is configured to be shorter than the set time for large use. Can be.
[0013]
In the present invention, it is preferable that an adjustment means for individually adjusting the length of the set time for large use and the set time for small use is provided on the remote control or the toilet upper member. This makes it possible to easily set the most convenient setting time for the user in both large use and small use, which is extremely convenient.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments will be described with reference to the drawings. FIG. 1 is a perspective view showing the inside of a Western-style toilet provided with a toilet flushing device according to an embodiment, and FIG. 2 is a control block diagram of the toilet flushing device.
[0015]
A low tank cover 12 is installed on a rear upper surface of the Western style toilet 10, and a toilet seat 14 and a toilet lid (not shown) are attached to the low tank cover 12 so as to be vertically rotatable. A low tank 16 is provided in the low tank cover 12. A ball tap 20 to which a water supply pipe 18 is connected is provided above the low tank 16. The ball tap 20 is a well-known one that opens and closes in accordance with the vertical movement of the floating ball 20a. A float valve device 22 is attached to the bottom of the low tank 16. The float valve device 22 has a valve seat 22a fixed to a water outlet on the bottom surface of the low tank, and a float valve 22b seated on the valve seat 22a from above. An overflow pipe 22c is provided upright from the valve seat 22a, and a stopper 22d for preventing the float valve 22b from floating is attached to the overflow pipe 22c.
[0016]
The float valve 22b is connected to a distal end of an L-shaped handle shaft 26 via a ball chain 24. A motor unit 30 for rotating the handle shaft 26 is attached to an upper side surface of the low tank 16. The handle shaft 26 passes through the inside of the motor unit 30. Although not shown, a toothless gear is fixed to the handle shaft 26 in the motor unit 30, and a driving gear is meshed with the toothless gear. The driving gear is rotated clockwise or counterclockwise by the motor.
[0017]
The rear end of the handle shaft 26 extends to the outside of the low tank cover 12. A manual handle 32 is fixed to the rear end of the handle shaft 26, and can be manually operated for flushing (toilet flush) by the same use method as the conventional flush handle lever.
[0018]
Such a combination of the motor unit 30 and the manual handle 32 is well known, and is already commercially available.
[0019]
Inside the low tank cover 12, a hot water washing device (a device for washing a human buttock with hot water) is installed. This hot water washing device includes a hot water tank, a hot water pump (both not shown), a shower valve 38 (see FIG. 2), a washing nozzle 34 that can extend into the toilet bowl 10a, and the like.
[0020]
The low tank cover 12 is provided with a seating sensor 36 for detecting seating on the toilet seat 14. Note that the seating sensor may be a capacitance sensor or the like provided on the toilet seat 14.
[0021]
On the wall surface of the toilet room, a remote controller 40 having a switch for performing a flush operation and an operation of cleaning the anus with warm water (hereinafter, sometimes referred to as a shower operation) is provided. In this embodiment, the remote controller 40 is provided with a large switch 42 and a small switch 46 as flash operation switches. Further, the remote controller 40 is provided with a shower switch 48 for starting a shower operation and a stop switch 50 for stopping the shower operation.
[0022]
Further, the remote controller 40 includes a setting switch 52 for setting a standby time from the time of leaving the seat after a large use to the start of the flash, a setting switch 54 of a standby time from the time of leaving the seat after a small use to the start of the flash, and a switch such as a liquid crystal. A display panel 44 is provided. Since the standby time setting switches 52 and 54 are used less frequently, the standby time setting switches 52 and 54 are arranged on the back side of the openable / closable cover 40 a of the remote controller 40. By operating the standby time setting switches 52 and 54, the standby time after a large use and after a small use can be individually set by adjusting the length.
[0023]
When the standby time setting switches 52 and 54 are operated, the selected time is displayed on the display panel 44. The display panel 44 displays a date, a time, and the like in normal times.
[0024]
The operation signals of these switches 42 to 50 are transmitted to the control circuit 56 (FIG. 2) in the low tank cover 12 by infrared rays.
[0025]
When the shower switch 48 is operated in a state where the seat sensor 36 is detecting seating, the control circuit 56 turns on the hot water pump and opens the shower valve 38. Accordingly, the nozzle body of the shower nozzle 34 advances, and hot water spouts upward from the tip thereof, so that the human hips are cleaned with hot water. When the stop switch 50 is operated, the control circuit 56 stops the hot water pump and closes the shower valve 38.
[0026]
When the shower switch 48 is operated while the seat sensor 36 is detecting seating, the control circuit 56 determines that the user has performed heavy use, and uses the large usage memory for the usage pattern memory. Is stored. When the seating sensor 36 detects seating, but the shower switch 48 is not operated until the user leaves the seat, it is determined that the user has performed small use, and the small use is stored in the use form memory.
[0027]
When the seated user rises from the toilet seat 14 and separates, the motor unit 30 operates when a set time has elapsed after the seat sensor 36 stops detecting the seat. In this case, if the storage of the usage pattern memory of the control circuit 56 is heavy use, the motor unit 30 moves the handle shaft 26 clockwise after the standby time set by the standby time setting switch 52 for heavy use elapses. The float valve 22b is sufficiently pulled up. Thereby, most of the water (about 8 L) in the low tank 16 is discharged to the toilet bowl 10a. When the water level in the low tank 16 drops to near the bottom, the float valve 22b is seated on the valve seat 22a, and the water supply from the ball tap 20 is stored in the low tank 16.
[0028]
On the other hand, if the use mode memory of the control circuit 56 is for small use, when the standby time set by the small use standby time setting switch 54 has elapsed from the separation, the motor unit 30 turns the handle shaft 26 counterclockwise. Direction, and keep the handle shaft turned by a small angle for a specified time. When the handle shaft 26 is turned by the small angle, the float valve 22b is pulled up by a small amount, and the water in the low tank 16 is discharged into the toilet bowl 10a only during this pulling up. In this case, about 2 to 4 L of water is discharged to the toilet bowl 10a.
[0029]
It should be noted that when the sitting time is a short time that does not correspond to the use of the toilet, it is programmed so that the automatic cleaning is not executed even if the user leaves.
[0030]
In this embodiment, even when the switch 42 or 46 is operated, toilet flushing of large flush or small flush, respectively, is executed.
[0031]
In the above embodiment, the shower cleaning nozzle is provided, but a bidet cleaning nozzle may also be provided. In this case, the use of the bidet cleaning nozzle is regarded as the same as the small use, and the automatic flushing of the toilet after only the bidet is used is preferably small.
[0032]
In the above embodiment, the low tank 16 is employed, but a high tank may be used. Further, the present invention can be applied to a case without a tank as in the embodiment shown in FIG.
[0033]
In FIG. 3, the Western-style toilet 60 includes a toilet bowl 62, a rim portion 64, a trap portion 66, and a jet hole 68 for jetting jet water for jetting siphon (jet water) toward the trap portion 66. The water supply pipe 70 can supply water to the rim portion 64 via a valve 72 and can supply water to the jet hole 68 via a valve 74.
[0034]
When the Western-style toilet 60 is washed extensively, first, the valve 72 is opened for a predetermined time, the pot surface is washed by rim water supply, and then the valve 74 is opened for a predetermined time, and a siphon is generated in the trap portion to generate sewage and waste water. Discharge the paper. Thereafter, the valve 72 opens again for a short time, and trap water is stored.
[0035]
When the toilet 60 is flushed, only the valve 72 is opened for a required time, and the pot surface is flushed with about 2 L of water and the trap water is replaced.
[0036]
In FIG. 3 as well, large cleaning or small cleaning is performed after each set time elapses according to the usage mode.
[0037]
In the embodiment of FIGS. 1 and 2, the switches 52 and 54 for setting the standby time are provided on the remote controller 40, but these switches may be provided on the low tank cover 12 side. The standby time may be changed by operating a plurality of switches provided on the remote controller 40 in a specific order.
[0038]
Although the low tank cover 12 is provided in the embodiment of FIGS. 1 and 2, it is clear that a toilet seat box may be provided. In the embodiment of FIG. 3, a toilet seat box is provided.
[0039]
【The invention's effect】
As described above, according to the toilet flushing device of the present invention, the waiting time until the automatic flushing after leaving the seat can be set appropriately according to the large use and the small use.
[Brief description of the drawings]
FIG. 1 is a perspective view showing the inside of a Western-style toilet provided with a toilet flushing device according to an embodiment.
FIG. 2 is a control block diagram of the cleaning device of FIG. 1;
FIG. 3 is a side view of a Western-style toilet showing another embodiment.
[Explanation of symbols]
10, 60 Western style toilet 10a, 62 toilet bowl 12 low tank cover 14 toilet seat 16 low tank 20 ball tap 22 float valve device 26 handle shaft 30 motor unit 36 seating sensor 40 remote control 64 rim 72, 74 valve

Claims (4)

Washing water supply means for supplying washing water to the toilet,
A departure detecting means for detecting departure from the toilet seat,
A controller for operating the washing water supply unit when a set time has elapsed after the seating detection unit has detected the separation,
A determination means for determining whether the toilet usage mode was a large use or a small use is provided,
The toilet flushing device, wherein the control means can individually set the set time for heavy use and the set time for small use. 2. The toilet according to claim 1, wherein an adjusting means for individually adjusting the length of the set time in the case of heavy use and the set time in the case of small use is provided on the remote control or the upper member of the toilet. Cleaning equipment. Washing water supply means for supplying washing water to the toilet,
A departure detecting means for detecting departure from the toilet seat,
A controller for operating the washing water supply unit when a set time has elapsed after the seating detection unit has detected the separation,
A determination means for determining whether the toilet usage mode was a large use or a small use is provided,
The controller is characterized in that the set time for heavy use is different from the set time for small use. 4. The toilet flushing apparatus according to claim 3, wherein the set time for small use is shorter than the set time for heavy use.

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