JP2002309636A - Automatic washhand apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an automatic washhand apparatus which facilitates efficient washing of fingers and lower arms of the user, and prevents erroneous spout of liquid soap and liquid disinfectant therefrom. SOLUTION: The automatic washhand apparatus 1 is formed of a washhand bowl 2 for storing and discharging washhand water, an erect wall 3 vertically erected on a back side of the washhand bowl 2, a liquid soap spouting nozzle 4, a water/hot water spouting nozzle 5, and a liquid disinfectant spouting nozzle 6. The nozzles 4, 5, 6 each are equipped with a sensor for sensing approach of hands. According to the automatic washhand apparatus 1, the water/hot water spouting nozzle 5 is protruded toward the washhand bowl 2 relative to the liquid soap spouting nozzle 4 and the liquid disinfectant spouting nozzle 6. By virtue of activation of the water/hot water spouting nozzle prior to activation of the other spouting nozzles 4, 6, erroneous spout of the liquid soap and the liquid disinfectant during rinsing the hands and lower arms of the user can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic hand-washing apparatus suitable for use in places requiring a high degree of hygiene, such as food factories, kitchens of restaurants, and backyards of supermarkets.

[0002]

2. Description of the Related Art In mass production facilities such as food factories, kitchens of restaurants, backyards of supermarkets and the like, a high degree of hygiene is required. Make sure your hands are well sterilized. A hand washing apparatus suitable for use in such a large-scale cooking facility is disclosed, for example, in Japanese Utility Model Laid-Open No. 6-12566.

The hand washing apparatus disclosed in the above publication includes a soap liquid discharge nozzle, a water discharge nozzle, and a disinfectant liquid discharge nozzle connected to a soap liquid tank, a water supply tank, and a disinfectant liquid tank via valves, respectively. When the hand is approached, the valve corresponding to each nozzle is opened. With such a configuration, the user of the device can wash his / her hands with the soap liquid discharged from the soap liquid discharge nozzle, rinse the hands with water discharged from the water discharge nozzle, and then disinfect the disinfectant liquid discharge nozzle. Hands can be sterilized with a disinfectant solution discharged from the

[0004] In addition, since the hand-washing device can complete the hand-washing without touching the device at all, germs and the like brought in by an operator may adhere to the device or be germinated on the hand after washing. It is sanitary without any re-adhesion.

[0005]

[Problem to be Solved by the Invention] In order to thoroughly manage hygiene in a large-scale cooking facility, it is not sufficient to wash only the part from the wrist. According to the report, it is desirable to clean the lower arm from the wrist to the elbow.

However, in the case of the hand-washing device disclosed in Japanese Utility Model Laid-Open No. 6-12566, a soap liquid discharging nozzle,
The water discharge nozzle and the disinfectant discharge nozzle are all located near the hand wash bowl, and the nozzle mounting wall is inclined toward the hand wash bowl to allow these nozzles to face the opening of the hand wash bowl. Since the side walls are provided on the left and right sides of the main unit to hold the wall surface, the space where hand washing and rinsing can be performed is limited to a narrow area, and it is extremely inconvenient to perform sufficient hand washing. is there.

[0007] In the case of careful hand washing, the lower arm is made substantially horizontal between the water discharge nozzle and the hand washing bowl in order to wash and rinse not only the wrist but also the lower arm. In many cases, however, it is extremely difficult to take such a posture because the hand-washing device has a very small hand-washing space.

Further, when the lower arm is washed or rinsed in a narrow space between the water discharge nozzle and the hand washing bowl, a part of the hand or arm is sensed by the sensor for discharging the soap liquid or the sensor for discharging the disinfecting liquid. When entering the area, these sensors may erroneously sense and eject a soap or disinfectant that the user does not want.

[0009] Such erroneous sensing and erroneous ejection are likely to occur when the lower arm portion with the bubbles is made substantially horizontal and rinsing with the water ejected from the water ejection nozzle.
Since the soap solution or the like is often discharged again to the portion where the rinsing has been completed, the user has to repeat the rinsing operation, which wastes labor and time.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and can easily and efficiently clean hands and lower arms, thereby preventing erroneous discharge of liquid soap or disinfectant. It is an object to provide an automatic hand washing device.

[0011]

SUMMARY OF THE INVENTION The present invention relates to an automatic hand-washing apparatus having a plurality of outlets for individually detecting hot water and other liquids by detecting the approach of a hand by a sensor and a hand-washing bowl. Hot water priority discharge means capable of giving priority to discharge from the hot water discharge port among the discharge ports is provided.

With this configuration, when hand washing or rinsing is performed, hot water can be preferentially discharged from only the hot water discharge port, so that the hands and the lower arm can be easily and efficiently cleaned. Therefore, it is possible to prevent erroneous ejection of liquid soap or disinfectant, which is a liquid other than hot and cold water.

[0013] Here, as the hot-water-preferred discharge means, a discharge port is disposed on the vertical wall on the back side of the hand-washing bowl, and the hot-water discharge port among the discharge ports is disposed so as to protrude toward the hand-washing bowl side from the other discharge ports. It is desirable to do. By disposing the outlets so that they protrude from the back wall of the hand-washing bowl, there is no need to tilt the outlet-mounting surface toward the hand-washing bowl, and there is no need for left and right side walls to support the inclined wall. By making the outlet protrude from the other outlet, a space for hand-washing is located between the vertical wall and the hot-water outlet, which is closer to the hand-washing bowl than the other outlet, so it is almost horizontal just below the hot-water outlet. It is easier to wash and rinse while moving the lower arm part to the left and right, and it is now possible to wash the hands and lower arm part easily and efficiently, according to the `` Manual for Mass Cooking Facilities Sanitation Management '' issued by the Ministry of Health and Welfare Hand washing can also be performed reliably. Also, even if the hand is washed while moving the lower arm part substantially horizontally and moving it to the left and right, it is difficult for the hand and the lower arm part to enter the sensing area of the sensor that activates the discharge from the other discharge port, so the liquid Erroneous discharge of soap or the like can be prevented.

The projection distance from the vertical wall to the liquid soap discharge port and the disinfectant discharge port is about 30 mm to 80 mm, and the projection distance from the vertical wall to the hot water discharge port is 60 mm to 200 mm.
mm is desirable.

Here, it is desirable that the hot and cold water discharge port is arranged at a position 100 mm to 300 mm higher than the overflow surface of the hand washing bowl. By arranging the hot water outlet at a high position, the hand washing space between the hot water outlet and the hand-washing bowl can be expanded, so that the lower arm can be washed or rinsed while the hot water is continuously flowing. Make it easier.

It is desirable that the hot water discharge port is disposed at a position higher than the other discharge ports as the hot water priority discharge means. This makes it possible to arrange the sensing area of the sensor that activates the discharge from the hot water discharge port higher than the sensing area of the sensor that activates the discharge from the other discharge ports. It is easy to prevent erroneous ejection from another ejection port during hand washing and rinsing. In addition, the hot and cold water discharge port is 50 mm to 250 mm from other discharge ports.
It is desirable to make the degree higher.

Further, it is preferable that the sensing area of the sensor that activates the discharge from the hot water discharge port is set wider than the sensor that activates the discharge from the other discharge port. As a result, it is possible to eliminate the erroneous discharge of liquid soap and the like while securing a wider area for washing and rinsing the hands and lower arms while continuously flowing hot and cold water. It is desirable that the sensing area of the sensor that activates the discharge from the hot and cold water discharge ports be about 50 to 300 mm, and that the sensor that activates the discharge from the other discharge ports be about 10 to 100 mm.

Further, as the hot water preferential discharge means, a priority operation for preferentially activating the hot water discharge from the hot water discharge port when each sensor for activating the discharge from each discharge port detects the approach of the hand redundantly. It is desirable to provide a function.
By providing such a function, even when the lower arm or the like which is substantially horizontal approaches the discharge ports at the same time at the time of starting hand washing, etc., and each sensor overlaps with each other, only the hot and cold water has priority. It is easy to use because it is discharged in a convenient manner, and it is possible to more reliably prevent liquid soap and disinfectant from being erroneously discharged when washing or rinsing with the lower arm part substantially horizontal. become.

Further, it is desirable that the discharge direction of each discharge port is arranged substantially toward the center of the hand-washing bowl. Thus, all of the liquid discharged from each discharge port is collected into the hand-washing bowl, so that it is possible to prevent the area around the hand-washing bowl from being stained by dripping from the discharge port.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a perspective view showing an automatic hand washing apparatus according to a first embodiment, FIG. 2 is a perspective view showing a state where a lower casing of the automatic hand washing apparatus is removed, and FIG. FIG. 4 is a front view showing the automatic hand-washing device, and FIG.
FIG. 3 is a sectional view taken along line A.

As shown in FIG. 1, the automatic hand-washing apparatus 1 according to the present embodiment is used by being attached to a wall W while being floated from a floor F of a hand-washing room or the like. Hand-washing bowl 2, an upright wall 3 erected vertically on the back side of the hand-washing bowl 2, a liquid soap discharge nozzle 4 and a hot and cold water discharge nozzle 4 disposed as protruding outlets on the surface of the upright wall 3. 5 and a disinfecting solution discharge nozzle 6. The lower surface of the hand-washing bowl 2 is covered with a lower casing 7, and a double-opening opening / closing door 8 is provided on the front portion thereof. As shown in FIG. 2, a liquid soap tank 9 and a liquid soap are provided in the lower casing 7. Pump 1
0, a control box 11, a disinfecting solution tank 12, a disinfecting solution pump 13, a water discharge solenoid valve 14, and the like.

Sensors 15 are arranged at the tips of the liquid soap nozzle 4, the hot and cold water discharge nozzle 5, and the disinfectant liquid discharge nozzle 6, respectively, and wiring and piping as shown in FIG. 3 are provided. Liquid soap nozzle 4, hot and cold water discharge nozzle 5,
When the hand approaches one of the disinfecting solution discharge nozzles 6, the sensor 15 senses this and sends a signal to the control box 11,
Liquid soap pump 1 according to a command signal from control box 11
0 or the disinfectant pump 13 is operated, or the water discharge electromagnetic valve 14 is opened, and the liquid corresponding to each nozzle is discharged.

In the automatic hand-washing apparatus 1 of this embodiment, as shown in FIGS. 4 and 5, the liquid soap nozzle 4 and the disinfectant discharge nozzle 6 are projected from the vertical wall 3 by 60 mm, and the hot and cold water discharge nozzle 5 is raised. By arranging it so as to protrude 120 mm from the face wall 3, the hot and cold water discharge nozzle 5 is protruded from the other discharge nozzles 4, 6 toward the hand washing bowl 2 by 60 mm.

This makes it possible to secure a space between each of the discharge nozzles 4, 5, 6 and the vertical wall 3 that is large enough to perform liquid discharge and hand washing. Since the nozzle 5 is projected from the other discharge nozzles 4 and 6, the lower arm can be easily washed and rinsed with the lower arm substantially horizontal, and the hand and the lower arm can be easily and efficiently washed. . Therefore, hand washing and the like according to the “Manual for Mass Cooking Facilities Hygiene Management” issued by the Ministry of Health and Welfare can be surely executed.

The sensing area of the sensor 15 for activating the discharge from the other discharge nozzles 4 and 6 even when the hand is washed or rinsed while the lower arm is moved substantially horizontally while the lower arm is moved below the hot and cold water discharge nozzle 5. The hand and the lower arm do not enter the liquid soap, so that the liquid soap or the disinfecting liquid does not erroneously discharge.
Further, the hot and cold water discharge nozzle 5 is provided on the overflow surface 2 of the hand washing bowl 2.
a, the hand washing space between the hot water discharge nozzle 5 and the hand washing bowl 2 is greatly expanded compared with the conventional case, and the hot water is continuously supplied from the hot water discharge nozzle 5 to the lower side. The task of washing and rinsing the arms is also very easy.

Further, the sensing area of the sensor 15 for operating the hot and cold water discharge nozzle 5 is set to 50 to 300 mm, and the sensing area of the sensor 15 for operating the other discharge nozzles 4 and 6 is set to 10 mm.
By setting the distance to 100 mm, the sensing area of the sensor 15 of the hot and cold water discharge nozzle 5 is
5 is set wider than the sensing area, so that the area where you can wash and rinse your hands and lower arms while continuously flowing hot and cold water is kept wider, while preventing erroneous discharge of liquid soap etc. I have.

On the other hand, when the three sensors 15 for operating the discharge nozzles 4, 5, 6 detect the approach of the hand in duplicate, a priority operation circuit for giving priority to the discharge of hot water from the hot water discharge nozzle 5 is provided in the control box. 11. Therefore,
For example, when hand washing is started, the substantially horizontal lower arm approaches the discharge nozzles 4, 5, and 6 at the same time.
Even if water is detected in duplicate, it is easy to use because only hot and cold water is discharged preferentially.When washing or rinsing with the lower arm part substantially horizontal, other discharge nozzles No liquid soap or disinfectant is erroneously ejected from 4 and 5.

Next, an automatic hand washing apparatus 20 according to a second embodiment will be described with reference to FIG. In the components of the automatic hand-washing device 20 of the present embodiment, the portions exhibiting the same functions and effects as the components of the automatic hand-washing device 1 described above are denoted by the same reference numerals as those in FIGS. Omitted.

The automatic hand-washing device 20 includes a liquid soap discharge nozzle 21, a hot water discharge nozzle 22, and a disinfectant discharge nozzle 23 on an upright wall 3 provided on the back of the hand-washing bowl 2.
Are arranged in a protruding shape, and the hot and cold water discharge nozzle 22 is disposed at a position higher than the other discharge nozzles 21 and 23 by about 150 mm. With such a configuration, the sensing area of the sensor 24 provided in the hot water discharge nozzle 22 is set at a position higher than the sensing area of the sensor 24 of the other discharge nozzles 21 and 23. Wash your hands and lower arms while moving them back and forth and left and right using
Even if rinsing is performed, liquid soap or the like is not erroneously discharged from the other discharge nozzles 21 and 23. In addition, the discharge nozzle 2
The structures, functions, and the like of 1, 2, and 23 are the same as those of the discharge nozzles 4, 5, and 6 described above.

Next, an automatic hand washing apparatus 30 according to a third embodiment will be described with reference to FIG. In FIG. 7, the same functions as those of the components of the automatic hand washing device 1 described above,
Portions that exert an effect are denoted by the same reference numerals as in FIGS. 1 to 5.

In the automatic hand washing apparatus 30, a liquid soap discharge nozzle 31, a hot water discharge nozzle 32, and a disinfectant discharge nozzle 33 are arranged in a protruding manner on an upright wall 3 provided on the back of the hand wash bowl 2. , Each discharge nozzle 3
1, 32, 33 liquid ejection directions 31a, 32a, 33a
Is disposed toward a drain port 2b which is substantially at the center of the hand-washing bowl 2. Thereby, each of the discharge nozzles 31, 32,
All the liquid discharged from the nozzle 33 is collected into the hand-washing bowl 2 and discharged from the discharge port 2b.
The surroundings of the hand-washing bowl 2 can be prevented from being stained by dripping from the liquids 1, 32, and 33. The structure, function, and the like of the discharge nozzles 31, 32, and 33 are the same as those of the discharge nozzles 4, 5, and 6 described above.

Next, an automatic hand washing apparatus 40 according to a fourth embodiment will be described with reference to FIG. In FIG. 8, the same functions as those of the components of the automatic hand-washing device 1 described above are also provided.
Portions that exhibit the effect are denoted by the same reference numerals as in FIGS. 1 to 5.

In the automatic hand-washing device 40, a concave curved surface 44a is formed on an exposed surface of an upright wall 44 provided on the back of the hand-washing bowl 2, and along the concave curved surface 44a,
A liquid soap discharge nozzle 41, a hot and cold water discharge nozzle 42, and a disinfectant liquid discharge nozzle 43 are arranged in a protruding manner. With such a configuration, the discharge nozzles 41, 42, 4
3 is directed to the drain port 2b, which is substantially the center of the hand-washing bowl 2, so that each of the discharge nozzles 41, 42,.
All the liquid discharged from the nozzle 43 is collected into the hand-washing bowl 2 and discharged from the discharge port 2b.
It is possible to prevent the surroundings of the hand washing bowl 2 from being stained by the dripping from the liquids 1, 42, 43. The structure, function, and the like of the discharge nozzles 41, 42, and 43 are the same as those of the discharge nozzles 4, 5, and 6 described above.

[0034]

According to the present invention, the following effects can be obtained by the above configuration.

(1) In an automatic hand-washing apparatus having a hand-washing bowl and a plurality of outlets for individually detecting hot water and other liquids by sensing the approach of a hand by a sensor, and from a hot-water outlet of each outlet, The water and water priority discharge means that can prioritize the discharge of water can be easily and efficiently cleaned of the hands and the lower arm, so that other liquids such as liquid soap and disinfectant can be erroneously cleaned. Discharge can also be prevented.

(2) As the priority discharge means, a discharge port is arranged on the vertical wall on the back side of the hand-washing bowl, and the hot-water discharge port of each discharge port is projected from the other discharge ports toward the hand-washing bowl. Since a space that can be hand-washed is located between the vertical wall and the hot-water discharge port on the hand-washing bowl side from the other discharge ports, it is possible to more easily and efficiently wash the hands and the lower arm, The function to prevent erroneous ejection of liquid soap and disinfectant is also improved.

(3) By disposing the hot water outlet at a position 100 to 300 mm higher than the overflow surface of the hand washing bowl, the hand washing space between the hot water outlet and the hand washing bowl can be enlarged, so that the hot water is continuously supplied. The operation of washing and rinsing the lower arm portion is further facilitated.

(4) As the hot water preferential discharge means, by disposing the hot water discharge port at a position higher than the other discharge ports, the sensing area of the sensor for activating discharge from the hot water discharge port can be changed from the other discharge ports. Can be arranged above the sensing area of the sensor that activates the discharge of water, so that it is easy to prevent erroneous discharge from other discharge ports when hand washing or rinsing is performed using the hot water discharge port.

(5) As the hot water preferential discharge means, the sensing area of the sensor that activates the discharge from the hot water discharge port is set wider than the sensing area of the sensor that activates the discharge from the other discharge port. While continually flowing water, the hand and the lower arm can be washed or rinsed, and a wider area can be ensured, and erroneous ejection of liquid soap or the like can be eliminated.

(6) Priority operation for preferentially activating hot water discharge from the hot water discharge port when the sensor for activating discharge from each discharge port as the hot water priority discharge means detects an approach of the hand in duplicate. By providing the function, when hand washing is started, only the hot water is discharged even if the substantially horizontal lower arm and the like approach each discharge port at the same time, making it easier to use. It is possible to more reliably prevent erroneous ejection of liquid soap or disinfectant when washing or rinsing while keeping the tub substantially horizontal.

(7) By arranging the discharge direction of each discharge port toward substantially the center of the hand-washing bowl, all the liquid discharged from each discharge port can be collected in the hand-washing bowl. It is possible to prevent the area around the hand washing bowl from being stained by the dripping of the liquid.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an automatic hand-washing device according to a first embodiment.

FIG. 2 is a perspective view showing a state in which a lower casing of the automatic hand washing apparatus of FIG. 1 is removed.

FIG. 3 is a diagram showing a pipe and a circuit configuration of the automatic hand-washing device of FIG. 1;

FIG. 4 is a front view showing the automatic hand washing device of FIG. 1;

FIG. 5 is a sectional view taken along line AA in FIG.

FIG. 6 is a front view showing an automatic hand-washing device according to a second embodiment.

FIG. 7 is a plan view showing an automatic hand-washing device according to a third embodiment.

FIG. 8 is a front view showing an automatic hand-washing device according to a fourth embodiment.

[Explanation of symbols]

 1,20,30,40 Automatic hand washing device 2 Hand washing bowl 2a Overflow surface of hand washing bowl 2b Drain outlet 3,44 Elevated wall 4,21,31,41 Liquid soap discharge nozzle 5,22,32,42 Hot water discharge nozzle 6 , 23, 33, 43 Disinfectant discharge nozzle 7 Lower casing 8 Opening / closing door 9 Liquid soap tank 10 Liquid soap pump 11 Control box 12 Disinfectant tank 13 Disinfectant pump 14 Discharge liquid solenoid valve 15, 24 Sensor 31a, 32a, 33a Direction 44a Concave curved surface F Floor surface W Wall surface

Claims (7)

[Claims] 1. An automatic hand-washing apparatus comprising: a plurality of outlets for individually detecting hot water and other liquids by sensing the approach of a hand by a sensor; and a hand-washing bowl. An automatic hand-washing device, characterized in that hot water / hot water discharging means capable of giving priority to discharge from the water is provided. 2. As the hot water preferential discharge means, the discharge port is disposed on a vertical wall on the back side of the hand washing bowl, and the hot water discharge port of the discharge ports is projected to the hand washing bowl side from other discharge ports. The automatic hand-washing device according to claim 1. 3. The automatic hand-washing device according to claim 1, wherein the hot-water discharging port is arranged at a position higher by 100 to 300 mm than an overflow surface of the hand-washing bowl. 4. The hot water discharge port is disposed at a position higher than other discharge ports as the hot water priority discharge means.
3. The automatic hand-washing device according to any one of 3. 5. The sensor according to claim 1, wherein a sensing area of a sensor for activating discharge from the hot-water outlet is set wider than a sensing area of a sensor for activating discharge from another outlet. 4. The automatic hand-washing device according to any one of 4. 6. The hot-water discharge means for activating the hot-water discharge from the hot-water discharge port when each of the sensors for activating discharge from the discharge ports detects the approach of a hand in duplicate. The automatic hand-washing device according to any one of claims 1 to 5, further comprising a priority operation function. 7. The automatic hand-washing device according to claim 1, wherein a discharge direction of each of the discharge ports is arranged substantially toward a center of a hand-washing bowl.