JPS61196927A - Hand washing apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention is applicable to a hand washing device that performs hand washing water spouting and hot air drying, and more specifically, to clean rooms such as electronic factories such as IC and semiconductor factories, precision factories, pharmaceutical factories, etc. related to things.

<Prior Art> Conventionally, this type of hand washing device has been disclosed in Japanese Utility Model Application Publication No. 59-47779 as shown in FIG. 9, for example.

The one in Figure 9 has a hand-washing space (102) in a part of the box (101) and a hand-washing shower (102) that opens at the top.
03), a warm air fan (104) outside the hand washing space (102), and a warm air heater (105) located directly in the direction of the fan (104). A timer in the circuit allows hand showers (1
03) water discharge, 0N-OFFIIi of energization to the hot air blower fan (104) and hot air heater (105)
IItl[l.

However, the one in Figure 9 is a heating heater for m black (10
5) in the air located around the hot air heater (105) in order to heat the surrounding air and blow the hot air toward the hand washing space (102) by the hot air fan (104). There has been a problem in that dust such as dust and waste products from hands that are generated by rubbing hands together when drying are scattered indoors with hot air.

<Problems to be Solved by the Invention> A problem to be solved by the present invention is to prevent dust from scattering indoors.

<Means for Solving the Problems> The technical means taken by the present invention to solve the above-mentioned problems is that in a hand-washing device in which hand-washing water is discharged and hot-air drying is performed, a hot air blower is used to send warm air into the hand-washing basin. A circulation path is provided that connects the wind generator and an exhaust passage that sucks air inside the wash basin, and an air filter is provided in the circulation path.

<Function> The present invention circulates and uses the warm air by sucking the hot air blown into the washbasin and blowing it out again into the washbasin through an air filter.

<Example> Hereinafter, one embodiment of the present invention will be described based on the drawings.

In this embodiment, as shown in FIG. ) protrudes outside the storage box (1), and inside the storage box (1), in addition to the hand wash basin (A), there is also a washing device (B) and a drying device (C) for drying hands. and a control section (3) that receives a sensing signal from a sensing section (2) that senses the hand during hand washing and controls the operation of both devices.

The washing device (B) includes a hand washing water spouting part (B+) that sprays hand washing water during hand washing, and a ball washing part (B2) that supplies ball washing water to wash the ball part (B3) of the hand washing device (A).
It consists of

The hand wash spout (B1) is the ball part (B3) of the hand wash basin (A).
A water spouting nozzle (4) is placed downward on the upper wall surface (B4) by being deviated outward from the center position in the width direction, and a solenoid valve (5) for hand washing is provided for the water spouting nozzle (4). The handwashing solenoid valve (5) is electrically connected to the water supply source via the handwashing water supply pipe (6), and the control unit (3) receives commands from the control unit (3). Solenoid valve for hand washing (5)
is opened for a predetermined period of time to supply cleaning water to the water spouting nozzle (4),
The nozzle (4) discharges washing water for hand washing into the ball part (B3).

The water spouting nozzle (4) is inclined at a predetermined angle toward a vertical line passing through an intermediate position in the width direction of the washbasin (A).

The ball cleaning part (B2) forms an annular water passage (B5) at the upper peripheral edge of the ball part (B3).
) is connected to a water supply source via a ball water supply pipe (8) provided with a ball solenoid valve (7), and the ball solenoid valve (7) is electrically connected to the control unit (3). Then,
The ball solenoid valve (7) opens in response to a command from the control unit (3) and supplies cleaning water to the water passage (B5).
) Cleaning water flows along the inner wall of the ball part (B3) from a large number of water flow holes (B6) opened in the bottom wall of the ball part (B3).
Clean inside.

The washing water from the ball washing part (B2) is discharged to the outside of the storage box (1) through the drain pipe (9) together with the washing water from the hand washing water spouting part (B1).

The drying device (C) is located on the wall (B4) above the ball part (B3).
A hot air blowing nozzle (10) is provided at a position symmetrical to the water spouting nozzle (4) in the width direction, and the nozzle (10) is connected to the hot air generating Iff (11) via a flexible pipe (12), The hot air generator (11) is connected to the control unit (
3), and the warm air generator (11) is operated for a predetermined period of time in response to a command from the control unit (3).

The blowing nozzle (10) is inclined at an equal angle with the water spouting nozzle (4) toward a vertical line passing through the middle position in the width direction of the wash basin (A). Therefore, by inserting your hand into the middle position in the width direction inside the washbasin (A), you can receive the washing water from the water spouting nozzle (4) and the warm air from the blowing nozzle (10) without moving your hand. It is.

The drought generation IN (11) includes a blower fan (llb) and a ceramic heater (11c) arranged sequentially from the upstream side of the case (11a).
1b), that is, on the upper wall of the case (Ila), an exhaust passage (B3) is formed adjacent to the rear of the ball part (B3).
Connect the connecting pipe (12) that communicates with B7).

Therefore, when the blower fan (11b) operates, the blower nozzle (11b) passes through the ceramic heater (11C).
0), hot air is blown toward the ball part (B3), and the hot air sent into the ball part (B3) is passed through the exhaust passage (al).
The air is sucked in from the air via the connecting pipe (12) and sent to the blower fan (
A circulation path (D) returning to iib) is constructed, and an air filter (13) is provided in this circulation path (D).

The air filter used is a high-performance one capable of collecting very fine particles of dirt and dust, and in this embodiment, it is placed inside the case (11a) of the hot air generator (11).

The sensing part (2) consists of a photoelectric sensor, and the ball part (B
3) The light emitting element is installed at the center position in the width direction of the upper wall surface (B4), and its optical axis (X) is tilted downward and forward at a predetermined angle with respect to the vertical line. The sensing part (2
) to prevent malfunction of the front opening (al
) so that when a hand is inserted into the ball part (B3), it can be immediately detected.

The operation of the washing device (B) and the drying device (C) is automatically controlled by the control section (3) that receives a sensing signal from the sensing section (2), and the hand washing and drying are performed for a desired time. In order to do this, it is necessary to manually control these operations, and in this embodiment, the manual control is performed by operating switches on the operation panel (14).

The operation panel (14) is installed on the front side of the storage box (1) on the side of the handwash basin (C), and has a handwashing switch (14a) consisting of a push button switch as shown in FIG.
), a drying switch (12b), light emitting diodes (12c) (12d) that indicate the input status thereof, and a stop switch (12e), which is also a push button switch.
and a light emitting diode (12f) (129) that indicates whether the control is automatic or manual and indicates its execution, and is electrically connected to the control section (3).

The above-described operations during hand washing are as shown in the time charts and flow charts of FIGS. 5 to 8.

First, in the case of automatic control, when the user puts his/her hand into the washbasin (A), the sensing section (2) senses the hand and sends a sensing signal to the control section (3). The sensing signal is input to the control unit (3) only once at the beginning, and any sensing signal output after this first time is prohibited from being input to the control unit (3).

When the sensing signal is input to the control unit (3), the control unit (3)
In response to a command from the operator, the hand-washing solenoid valve (5) is opened for a predetermined period of time, for example, 10 seconds, and washing water for hand-washing is spouted from the water spouting nozzle (4).

Simultaneously with the discharge of cleaning water from the water discharge nozzle (4), the ball electromagnetic valve (7) opens, and cleaning of the inside of the ball portion (B3) is started.

The opening time of the ball solenoid valve (7) is 1 second, and after this amount of valve time has passed, the ball solenoid valve (7) closes and opens again 6 seconds later. Solenoid valve for (
The periodic opening/closing operation of 7) is repeated multiple times within the hand washing time.

In addition, the opening and closing times of the solenoid valve for balls (7) are counted by a timer in the control unit (3), and the solenoid valve for balls (7) is counted at the cycle of the set time in the control unit (3).
) are opened and closed.

By the periodic opening and closing operation of the solenoid valve (7) for the ball, an appropriate amount of washing water is continuously supplied into the ball part (B3) until after the hand washing is completed, and the dirty water from hand washing flows into the ball part (B3). Hand wash without residue (A)
Expelled outside.

After washing the hands and the ball part (B3) in this way, after a predetermined period of time, for example, 5 seconds,
(C) starts operating at the same time, drying the hand and ball part (B).
3) Inhale inside. The reason for providing a delay time between the start of operation of the dryer fil (C) and the stop of operation of the hand wash spouting part (B1) and the ball washing part (82) is that
) to prevent cleaning water or waste water remaining in the dryer (C) from scattering outside the ball part (B3) by hot air from the dryer (C),
This is also to prevent the cleaning water and the like from being sucked into the exhaust passageway (B7) and having an adverse effect.

The operation of the drying device (C) is such that air is heated as it passes through the ceramic heater (11c) by the rotation of the blower fan (11b) in the hot air generation 1 (11) and becomes hot air, and the hot air is passed through the blowing nozzle (11). 10) to dry hands, and at the same time, air inside the ball part (B3) is sucked through the exhaust passage (al) and circulated to the blower fan (11b).

The operating time of the blower fan (11b) is determined by the control unit (3).
A timer is being counted in the control unit (3).
), the dust such as hand waste generated by blowing hot air and rubbing the hands together when drying is sucked and removed from the inside of the ball part (B3). This dust is Mr. Wffiff's (11) case (1)
1a) and is removed through an air filter (13).

When switching the automatic control to manual control, press the stop switch (14e) on the operation panel (14) to stop the automatic control and reset to the initial state, and then wash your hands. switch (14a
) or the drying switch (14b), the control can be switched to manual mode. In addition, during automatic control, the hand washing switch (14a) and drying switch (14a)
Even if b) is pressed, the input is not accepted by the control unit (3).

When the hand washing switch (14a) is pressed, the hand washing water dispensing part (B1) and the ball washing part (B2) start operating at the same time as in the case of automatic control, and the hand washing and the ball washing part (B3) start operating simultaneously.
It is used for cleaning. To stop the water spout after washing your hands for the desired time, press the stop switch (1).
4e) or press the drying switch (14b).

When the drying switch (14b) is pressed, the drying device (C) starts operating after a predetermined delay time after the discharging of washing water is stopped, and the process starts from hand washing to drying. is switched.

On the other hand, when the drying switch (14b) is pressed, the hands can be dried for a desired period of time by operating the drying device (C) in the same way as described above. Note that drying can be stopped by pressing the stop switch (14e) or by pressing the hand washing switch (14a).
), the operation switches to hand washing after a delay time, as in the case of automatic control. <Effects of the Invention> Since the present invention has the above configuration, it has the following advantages.

■ The hot air blown into the washbasin is sucked and then blown into the washbasin again through an air filter to circulate and use the hot air, so unlike conventional systems, hot air does not flow into the room. In addition, dust such as hand waste generated when hands are dried is sucked from the wash basin and removed by an air filter, and is not scattered indoors.

■ Since hot air is circulated, electricity consumption can be reduced compared to conventional systems that blow hot air into the seedlings.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional side view of a handwashing device showing an embodiment of the present invention, FIG. 2 is a front view of the same but shown in a reduced size, and FIG. 3 is a partially cutaway side view showing an enlarged sensing section. 4. An enlarged front view of the operation panel for manual lashing control, Fig. 5 is a time chart for automatic control, Fig. 6 is a flowchart for the same, Fig. 7 is a time chart for manual control, and Fig. 8 is a flowchart for the same. , FIG. 9 is a longitudinal sectional view showing an example of a conventional hand washing device. A...Hand wash basin B7...Exhaust passage D.
...Circulation route 11...Hot air generator 13.
··air filter

Claims (1)

[Claims] In a hand washing device that performs hand washing water spouting and hot air drying, a circulation path is provided that connects a hot air generator that sends hot air into the hand wash basin with an exhaust passage that sucks air inside the hand wash basin, and a circulation path is provided in the circulation path. A hand washing device characterized by being equipped with an air filter.