JPH0479244B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a hand washer/dryer, and more particularly to one that sequentially discharges hand wash water and blows out warm air when the insertion of a hand into the hand wash basin is detected.

<Prior Art> Conventionally, there is a hand washing dryer of this type as shown in FIG. 9, as disclosed in Japanese Utility Model Application Publication No. 59-47779.

In the device shown in FIG. 9, when the user inserts his or her hand into the handwash basin 101, the sensing unit 102 senses it, activates the timer, and opens the handwashing solenoid valve 103 for a certain period of time, thereby dispensing a predetermined amount of handwashing water. Along with spewing water,
After discharging the hand washing water, the blower fan 104 and the heating element 105 are energized for a certain period of time to blow out hot air.

However, in the case shown in FIG. 9, all you have to do is take your hand out of the washbasin 101 immediately after the blower fan 104 and heating element 105 stop, but if you take your hand out even a little too late, the sensing unit 102 will sense it again and wash your hand. solenoid valve 10
There was an inconvenience that when the valve 3 was opened, the water for washing hands was discharged and the hands that had been dried once got wet.

<Problems to be Solved by the Invention> A problem to be solved by the present invention is to prevent hand washing water from being discharged even if there is a delay in removing the hand after the drying device has finished operating.

<Means for Solving the Problems> The technical means taken by the present invention to solve the above-mentioned problems is that the handwashing device is installed in the handwashing basin based on the operation of the sensing part that detects the hand inserted into the handwashing basin. A hand-washing dryer that sequentially operates a hand-washing water discharge device that discharges water and a drying device that blows out warm air is characterized by providing a prohibition time that prohibits input to the sensor within a predetermined time after the drying device stops operating. That is.

<Function> The present invention prevents the sensor from sensing the hand inside the washbasin again by prohibiting input to the sensor within a predetermined time after the drying device stops operating.

<Example> An example of the present invention will be described below based on the drawings.

In this embodiment, as shown in FIG.
This shows a case where an opening 2a for manual insertion is opened at the upper front of the storage box 2 so as to face into the ball part 1a which is opened obliquely upward from the top surface to the middle part of the front surface. In addition to the hand wash basin 1, a hand wash water discharging device 3, a bowl cleaning device 4, a soap liquid discharging device 5, and a drying device 6 are provided inside.

The hand wash water discharge device 3 includes a hand wash water supply pipe 3a connected to a water supply source, an electromagnetic flush valve 3b provided in the middle of the hand wash water supply pipe 3a, and a heating tank 3c.
and a shower nozzle 3d for discharging hand-washing water connected to the tip of the hand-washing water supply pipe 3a, and hot water is discharged from the shower nozzle 3d for hand-washing by operation of the electromagnetic flush valve 3b.

That is, the hand washing water discharge device 3 has the electromagnetic flush valve 3b located upstream of the heating tank 3c,
By opening the electromagnetic flush valve 3b, the hot water stored in the heating tank 3c is pushed out and warm water is discharged in a shower form from the hand washing water discharge shower nozzle 3d.

The heating tank 3c is equipped with a sheathed heater and a temperature sensor (not shown), and is configured to constantly heat and maintain the hot water stored therein at a constant temperature. Mounting plate 2 installed horizontally above the container 1
b so as to face inside the ball portion 1a.

In addition, the hand wash water supply pipe 3a is fixed in the storage box 2, and in the installed state, the water supply pipe 3a is installed on the floor A of the building.
Alternatively, in the illustrated example, the side wall B is connected to a water supply pipe 3e that is discharged from the side wall B and extends into the storage box 2.

The ball washing device 4 is a ball part 1a of the wash basin 1.
A cleaning water supply pipe 4a that supplies water to a water passage rim 1b formed in an annular shape on the inner peripheral surface of the opening, and this cleaning water supply pipe 4a.
It consists of an electromagnetic flush valve 4b provided in the middle, and a large number of water flow holes 1c are opened in the bottom surface of the water passage rim 1b by the operation of the flush valve 4b.
Washing water is allowed to flow onto the inner surface of the ball portion 1a.

That is, when the electromagnetic flush valve 4b is opened, cleaning water is supplied to the water passage rim 1b, and this cleaning water flows down from the water flow holes 1c of the water passage rim 1b along the inner surface of the ball portion 1a, and flows through the ball portion 1a. Wash.

The washing water supply pipe 4a is the hand washing water supply pipe 3a.
Branch off from the pipe and install the piping.

In addition, the cleaning water from the ball cleaning device 4 is
The wash water from the hand wash water discharge device 3 is discharged to the outside of the wash basin 1 and the storage box 2 via the drain trap 1d and the drain pipe 1e.

The soap liquid discharge device 5 includes a soap liquid container 5a, a soap liquid discharge nozzle 5b, a soap liquid supply pipe 5c that connects these containers 5a and the nozzle 5b, and an electromagnetic pump 5d disposed in the middle of the soap liquid supply pipe 5c.
By operating the electromagnetic pump 5d, the soap liquid is sent from the container 5a to the nozzle 5b, and is discharged from the nozzle 5b for use in hand washing.

The soap liquid discharge nozzle 5b is attached to the attachment plate 2b so as to face the inside of the ball portion 1a.

The drying device 6 consists of a conventionally well-known hot air generator 6c equipped with a blower fan 6a and a heater 6b, and a hot air blowing nozzle 6d connected to this, and hot air is blown from the nozzle 6d to remove wet hands after washing. It is used for drying hands.

The hot air blowing nozzle 6d is attached and fixed to the attachment plate 2b so as to face the ball portion 1a.

Each of the above-mentioned devices, that is, the hand washing water discharging device 3, the ball cleaning device 4, the soap liquid discharging device 5, and the drying device 6, is controlled by the control section 8 based on the sensing by the sensing section 7.
Its operation is automatically controlled.

The sensing part 7 consists of a photoelectric detector, and the ball part 1 is inserted along the edge of the opening 2a formed in the storage box 2.
The projected light beam crosses the opening 2a on the cylindrical part _2a1 which is bent inward so that it can sense a hand inserted into the ball part 1a from the opening 2a for hand washing. installed.

Further, the control unit 8 is arranged inside the storage box 2,
The sensing unit 7, the electromagnetic flush valve 3b of the hand wash water dispensing device 3, the electromagnetic flush valve 4b of the ball cleaning device 4, the electromagnetic pump 5d of the soap liquid dispensing device 5, and the blower fan 6a and heating heater 6b of the drying device 6. They are electrically connected to each other, generate a predetermined signal based on the sensing signal of the sensing section 7, and automatically operate each of the above to perform hand washing and drying.

On the other hand, in order to wash and dry hands for a predetermined period of time, it is necessary to manually control the operation of each device, and in this embodiment, this manual control is performed by operating a switch on the operation panel 9.

The operation panel 9 is provided above the washbasin 1 in the storage box 2, and as shown in FIG. 5, includes a soap switch 9a, a washing switch 9b, and a drying switch 9c, which are push button switches, and emits light to indicate their input states. Diodes 9d, 9e, 9
f, 9g, a stop switch 9h which is also a push button switch, and a light emitting diode 9 that indicates whether the control is automatic or manual and its execution.
i and 9j are provided and electrically connected to the control section 8.

The operation of such a hand washer dryer is as shown in the block diagram and time chart shown in FIGS. 6 and 7.

First, in the case of automatic control, the user controls the ball part 1a.
When a hand is put inside, the sensing section 7 senses the hand and sends a sensing signal to the control section 8. This sensing signal has an output of
T ₁ hour For example, if it is within 1 second, it will be canceled,
Unnecessary operation of the hand washing water discharging device 3, the ball cleaning device 4, the soap liquid discharging device 5, and the drying device 6 is prevented.

When the above-mentioned sensing signal is input to the control unit 8 for more than 1 second, the electromagnetic flush valve 3b of the hand washing water discharging device 3 is first opened for T ₂ hours, for example, 1 second in response to a command from the control unit 8, and the shower nozzle for discharging hand washing water is opened. 3d
Hand wash water for preliminary washing is discharged from the machine. At the same time as the hand washing water is discharged from the shower nozzle 3d, the electromagnetic flush valve 4b of the ball cleaning device 4 is opened, and cleaning of the inside of the ball portion 1a is started.

The reason for performing the above pre-washing is to wet your hands before discharging the soap liquid so that the soap liquid will easily stick to your hands.T ₃ hours after the completion of the pre-washing, the electromagnetic pump 5d of the soap liquid discharging device 5 is activated. When driven, soap liquid is discharged from the soap liquid discharge nozzle 5b.

The soap solution is dispensed for 1 second for _T4 hours and then stopped.
After _T5 hours, for example, 5 seconds after this stop, the electromagnetic flush valve 3b opens again, and the hand wash water for main washing is discharged from the hand wash water discharge shower nozzle 3d.

Then, from the start of discharging the hand washing water for the main washing mentioned above.
T After ₆ hours, e.g. 5 seconds, electromagnetic flush valve 4b
is closed and the supply of washing water to the inner surface of the ball portion 1a is stopped.Furthermore, after _T7 hours, for example, 5 seconds, the electromagnetic flush valve 3b is closed and the discharge of hand washing water is stopped.

On the other hand, after _T8 hours, e.g., 1 second, from the stop of the hand washing water, the drying device 6 starts operating the blower fan 6a and heating heater 6.
b is energized, warm air is blown from the hot air blowing nozzle 6d for _T9 hours, for example, 30 seconds, and then stopped.

If the sensing signal from the sensing part 7 disappears while the drying device 6 is in operation, the operation will be stopped after T ₁₀ hours, for example, 5 seconds, and if there is a sensing signal again within the T ₁₀ hours, the operation will continue. It will operate until ₉ hours have passed.

The reason why the operation of the drying device 6 is stopped when the sensing signal disappears is that even if the user has not finished drying his/her hands before the operation of the device 6 ends, _T9
This is to eliminate the waste of blowing out warm air by operating until a certain amount of time has elapsed, and after the detection signal has disappeared.
T The reason why the operation is continued if re-sensed within ₁₀ hours is because the user takes his hand out of the ball part 1a once during drying, checks the drying state, and then puts it back into the ball part 1a. This is to prevent automatic control from proceeding to the first operation of the hand washing water discharging device 3 and the bowl cleaning device 4 after one operation of the drying device 6 is completed.

In addition, after the hot air blowing stops, T ₁₁ hours e.g. 2
A prohibition time is provided for prohibiting the input of the sensing signal even if the second sensing section 7 senses the user.

The reason why the above-mentioned prohibition time T ₁₁ is set is that after the operation of the drying device 6 has stopped, it is sufficient to immediately put your hand out from inside the ball part 1a, but even if you do not take your hand out immediately, the sensing part 7 will re-sensing the drying device 6. This is to prevent the automatic control from shifting to the first state.

When switching the automatic control to manual control, press the soap switch 9a, washing switch 9b, or drying switch 9c on the operation panel 9 to stop the automatic control.
T After ₁₂ hours, for example 1 second, it will be reset to the initial state and switched to manual mode.

When the soap switch 9a is pressed, the soap liquid discharging device 5 and the ball cleaning device 4 start operating at the same time, discharging the soap liquid and cleaning the inside of the ball portion 1a.

The operation of both of these devices 4 and 5 is as follows: a T ₁₃ timer starts at the same time as the soap switch 9a is pressed, continues to operate while the switch 9a is pressed, and stops after T ₁₃ time, for example, 2 seconds, or T ₁₃ timer If the soap switch 9a is released before the time elapses, the T ₁₃ ' timer is started after releasing the push and is stopped after the T ₁₃ ' time, for example, 2 seconds.

The reason for providing the T ₁₃ timer and T ₁₃ ′ timer is that even if the soap switch 9a is pressed down or released before the T ₁₃ timer times up, only the specified amount of soap liquid is discharged and it is wasted. This is to prevent soap liquid from being used.

When the cleaning switch 9b is pressed, the hand washing water discharging device 3 and the ball cleaning device 4 start operating at the same time to discharge hand washing water and wash the inside of the ball portion 1a.

After washing your hands for the desired time, press the stop switch 9h to stop discharging hand washing water and washing the inside of the ball part 1a, or press the washing switch 9b even if you forget to press the stop switch 9h. At the same time, a _T14 timer is started, and one operation of the hand washing water discharging device 3 and the ball cleaning device 4 is completed after _T14 time, for example, about 3 minutes.

If drying switch 9c is pressed, drying device 6
starts operating at the same time and dries the hands.

After drying your hands for the desired time, press the stop switch 9h in the same way as the cleaning switch 9b to stop blowing hot air, or if you forget to press the stop switch 9h, press the drying switch 9c.
Start the T ₁₅ timer at the same time as you press T ₁₅
After about 3 minutes, for example, one operation of the drying device 6 is completed.

In addition, even if the drying switch 9c is pressed immediately after the cleaning switch 9h has finished operating, the drying device 6 does not start operating immediately, but only after ₁ second, for example, has elapsed, and the drying device 6 does not start operating until the drying switch 9h has finished operating, for example, 1 second. Immediately after the operation of the wash switch 9c is completed, even if the wash switch 9b is pressed, the hand wash water discharging device 3 does not start operating immediately, but only after _T17 time, for example, 1 second.

After the soap switch 9a, washing switch 9b, or drying switch 9c has been pressed, the control switches to automatic control.

In the figure, reference numeral 10 denotes an ultraviolet lamp, which irradiates the inner surface of the ball portion 1a with ultraviolet rays to sterilize the inner surface of the ball portion 1a.The ultraviolet lamp 10 is controlled as shown in the block diagram of FIG. When 7 detects a hand inserted into the ball part 1a, it lights up, and when the hand is no longer detected and this state continues for ₁₈ hours, the light goes off, or it stays on all the time, or it lights up only when there is no user. .

<Effects of the Invention> Since the present invention has the above configuration, it has the following advantages.

We have set a prohibition time that prohibits input to the sensor within a predetermined time after the drying device stops operating, so that the sensor will not be re-sensed even if your hand is still inserted in the washbasin during the prohibited time. Unlike conventional models, if you wait a little longer to use your hands, water will not be discharged and your hands will get wet after they have been dried.

[Brief explanation of drawings]

Fig. 1 is a partially cutaway front view of a hand washer/dryer showing an embodiment of the present invention, Fig. 2 is a partially cutaway plan view of the same, and Fig. 3 is a cross section taken along the - line in Fig. 2. Figure 4 is a sectional view taken along the - line in Figure 2,
Fig. 5 is an enlarged front view of the manual control operation panel, Fig. 6 is a block diagram, Fig. 7 is a time chart for automatic control, Fig. 8 is a block diagram of ultraviolet lamp control, and Fig. 9 is a conventional one. This is a front view showing an example of a hand washer/dryer, partially cut away. In addition, in the figure, 1...Hand wash basin, 3...Hand wash water discharge device, 6
…Drying device, 7…Sensing section, T ₁₁ …Prohibition time.

Claims (1)

[Claims] 1. In a hand wash dryer that sequentially operates a hand wash water discharge device that discharges hand wash water into the hand wash basin and a drying device that blows out warm air based on the operation of a sensing part that detects a hand inserted into the wash basin, the above-mentioned drying A hand washer/dryer characterized by having a prohibition time for prohibiting input to a sensor within a predetermined time after the device stops operating.