JPS63277023A - 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 relates to a hand washing device used in a washroom etc.
Especially after washing your hands, it is necessary to use a hand washing device that can dry with warm air.

[Conventional technology] Traditionally, hand washing devices that allow people to wash their hands in places such as toilets, washrooms, drinking fountains, etc., without making them feel cold when it is cold, have used warm water to wash their hands. There is.

One method is a central water heater, but this water heater often does not have plumbing connected to the toilet.
Even if piping is installed, hot water does not come out immediately.

Another method is to install a hot water storage tank in the washroom, but it requires constant power to the heater to keep the hot water warm, and the capacity is too large for washing hands, which also requires a large space. There were problems such as the necessity of

Furthermore, as disclosed in Japanese Patent Application Laid-Open No. 193617/1983, a hand washer/dryer has been proposed which senses a part of the human body to supply hand washing water and dry the hand with warm air.

[Problems to be Solved by the Invention] However, this conventional hot air dryer does not supply hand washing water and hot air at the same time, so the water is too cold and the hands are dry, especially when it is cold, such as early in the morning in winter. There is a fear that it cannot be washed.

The present invention allows you to wash your hands without feeling cold when it is cold in places where you wash your hands, such as toilets, washrooms, drinking rings, etc.
The purpose is to provide an economical and compact hand washing device.

[Means for Solving the Problems] The hand washing device of the present invention includes a warm air generating means that generates warm air;
A configuration is adopted that includes a hand-washing water supply means for supplying hand-washing water in the form of a shower into the hot air stream, and a control means for the warm-air generating means and the hand-washing water supply means.

[Functions and Effects of the Invention] The hand washing device of the present invention has the following functions and effects due to the above configuration.

By supplying hand-washing water in the form of a shower from the hand-washing water supply means into the airflow of warm air generated by the hot-air generating means,
Wash your hands in areas such as toilets, washrooms, and drinking stations.
You can wash your hands without feeling cold when it's cold,
It is economical and compact.

[Example] An embodiment of the hand washing device of the present invention will be described based on the drawings.

FIG. 1 shows a washroom handwashing device to which a first embodiment of the handwashing device of the present invention is applied, and FIG. 2 shows its handwashing control device.

The washroom handwashing device 1 of this embodiment includes a handwashing water supply means 2, a warm air generation means 3, a casing 5 having an outlet 4, a drainage means 6, a handwashing water supply means 2 and a hot air generation means 3. The hand washing control device 7 is a control means for operating or stopping the washing machine.

The hand wash water supply means 2 includes a water pipe 21 provided protruding from the wall 12 of the washroom 11, a water supply pipe 23 connected to the pipe 21 by a joint 22, and held on the side wall 51 inside the casing 5. A shower nozzle 24 is formed at the tip of the water supply pipe 23 and supplies water for washing hands in the form of a shower into the airflow of warm air from the hot air generating means 3, and an electromagnetic coil 25a is attached to the water supply pipe 23 and is energized. An electromagnetic on-off valve 25 that opens when the electromagnetic coil 25a is de-energized and closes when the electromagnetic coil 25a is de-energized.
It consists of

The hot air generating means 3 includes a blowing fan 31 installed in the casing 5, a driving motor 33 for the blowing fan 31 attached to the on-off valve 25 via a bracket 32,
It consists of a honeycomb-shaped heater 35 that is attached perpendicularly to the air passage 34 of the air blowing fan 31 and held by side walls 51 and 52.

The heater 35 is a positive characteristic thermistor (PTC) heater whose temperature rises rapidly at a certain electrical resistance value.

A honeycomb-shaped plate 41 is attached to the air outlet 4 to facilitate mixing of the hand washing water blown out from the shower nozzle 24 and the warm air heated by the heater 35.

The casing 5 has a two-part structure with a side wall 51 and a side wall 52, and is fixed to the wall 12. A suction port 53 for air sucked into the ventilation fan 31 is formed in the side wall 52 .

The drainage means 6 includes a funnel-shaped washbasin 61 provided below the air outlet 4, and a drain pipe 62 for discharging hand washing water from the washbasin 61 to the outside.

The hand washing control device 7 is connected to an AC power source 72 via a rectifier circuit 71.
A photoelectric sensor 74 is provided between the AC power source 72 and the drive motor 33, and a relay 75a is provided between the AC power source 72 and the drive motor 33. A normally open contact 75 that closes when energized, and the normally open contact 75 and the electromagnetic coil 25 of the on-off valve 25
a, a normally open contact 76 that is closed when the relay 76a is energized, the electronic control circuit 73, and the relay 768.
and a timer circuit 78 provided between the two. Rectifier circuit 71, electric control circuit 73, normally open contact 75, relay 7
The 5a1 normally open contact 76 and the relay 768 are housed in the relay box 70.

The rectifier circuit 71 is an alternating current (AC100V, 50/60Hz
) into direct current that can be operated by the electric control circuit 73.

When the electric control circuit 73 receives the hand detection signal from the photoelectric sensor 74, it energizes the relays 75a and 76a, and does not input the hand 10 detection signal from the photoelectric sensor 74 (hand 10 non-detection signal). input), relay 75a and relay 768 are de-energized.

The photoelectric sensor 74 includes a light emitting element 74a and a light receiving element 74b.
When the light from the light emitting element 74a hits the hand 10, it is reflected and the light is detected by the light receiving element 74b, thereby sensing the hand 10.

The timer circuit 78 connects the relay 76 for a predetermined delay time (for example, 10 seconds) after the photoelectric sensor 74 detects the hand 10.
A is energized, and then relay 76a is de-energized.

The operation of the washroom hand washing device 1 according to the first embodiment of the present invention will be explained based on the drawings.

When the user inserts the hand 10, the photoelectric sensor 74 sends a detection signal of the hand 10 to the electric control circuit 73. At this time, when the relay 75a is energized by the output of the electric control circuit 73, the contact 75 is closed and the drive motor 33 of the ventilation fan 31 is energized to start driving the ventilation fan 31.

Further, the heater 35 is also energized, and the heater 35 rapidly raises its temperature, heats the air blown from the air blowing fan 31, and generates warm air at an optimal temperature.

Furthermore, when the relay 76a is energized via the timer circuit 18 by the output of the electric control circuit 73, the contact 76 is closed, the electromagnetic coil 25a of the on-off valve 25 is energized, and the on-off valve 25 is opened. Then, hand-washing water is blown out from the shower nozzle 24 through the piping 21 and the water supply pipe 23 into the hot air stream in the form of a shower. This intermittent timer circuit 78 starts counting after initial setting (setting the count to O).

A honeycomb-shaped plate 41 attached to the air outlet 4 mixes the hand washing water and warm air well, and the user's hands 10.
By supplying hand washing water and warm air to the user, the user can wash his hands 10 without feeling cold when it is cold. Further, in the timer circuit 78, when a predetermined delay time (for example, between 10V and I) has elapsed from the start of counting, the timer circuit 78 de-energizes the relay 76a. This opens the contact 76, de-energizes the electromagnetic coil 25a, and closes the on-off valve 25. Therefore, the supply of water for washing hands is stopped, and the hot air generation means 3 after washing hands is stopped.
Warm air drying is performed.

After that, when the user pulls back the hand 10, the electric control circuit 73 inputs a non-detection signal of the hand 10 from the photoelectric sensor 74,
By de-energizing the relay 75a, the contact 75 is opened, the drive motor 33 of the blower fan 31 is de-energized, and the drive of the blower fan 31 is stopped.

Further, the heater 35 is also de-energized and the hot air drying is completed.

FIG. 3 shows a hand washing bag for washroom @1 to which the second embodiment of the present invention is applied.

(The same functional objects as in the first embodiment are given the same numbers.) The hand wash water supply means 2 of this embodiment has a shower nozzle 26 attached to the tip of the water supply pipe 23. Further, an on-off valve 28 that is opened and closed by a foot switch 21 is attached to the water supply pipe 23 . In the hot air generating means 3, a blowing fan 31 is provided in a scroll casing 36 fixed to the wall 12, and a blowing passage 34 is formed in a bellows-shaped duct 37.

In this embodiment, a photoelectric sensor 74 is installed as the air outlet 4, and the shower nozzle 4 is integrally formed with the duct 37.
2 is used, and this shower nozzle 42 houses the shower nozzle 26 inside. The shower nozzle 42 is
The duct 31 extends from the wall portion 43 on the right side of the drawing, and the inside thereof acts as a mixed air 44 for warm air and hand washing water. Further, the hand washing water blown out from the hole 26a of the shower nozzle 26 in a re-shower manner is blown out from the hole 42a of the shower nozzle 42 together with warm air.

The operation of the washroom hand washing device 1 applied to the second embodiment of the present invention will be explained based on the drawings.

When the user puts his/her hand in, the photoelectric sensor 74 sends a hand detection signal to the electric control circuit γ3. At this time electricity 1111
When the energizing relay 75a is energized by the output of the first circuit 73, the normally open contact 75 is closed, the driving motor 33 of the ventilation fan 31 is energized, and the driving of the ventilation fan 31 is started. Further, the heater 35 is also energized, and the heater 35 rapidly raises its temperature, heats the air blown from the air blowing fan 31, and generates warm air at an optimal temperature. This hot air is blown out from the shower nozzle 42 through the duct 37, so that the hands can be warmed by the hot air.

Further, when the user steps on the foot switch 27, the on-off valve 28 is opened and hand washing water is blown out from the hole 26a of the shower nozzle 26 into the hot air stream in the form of a shower.

At this time, the hand washing water and the warm air are well mixed in the mixing chamber 44 in the shower nozzle 42, and the hole 4 in the shower nozzle 42
By supplying hand-washing water and warm air to the user's hands in a shower-like manner from 2a, the user can wash his hands without feeling cold when it is cold.

The supply of water for washing hands is stopped by closing the on-off valve 28 when the user moves away from the foot switch 27, and after that, while the user is putting their hands in the hand, hot air drying is performed by the hot air generating means 3 after washing the hands. .

After that, when the user withdraws his/her hand, the electric control circuit 73 inputs a hand non-detection signal from the photoelectric sensor 74 and relay 7
Are you guilty of 5a? If-J, the normally open contact 75 is opened, the drive motor 33 of the blower fan 31 is de-energized, and the drive of the blower fan 31 is stopped. Further, the heater 35 is also de-energized and the hot air drying is completed.

FIG. 4 shows a washroom hand washing device 1 to which a third embodiment of the present invention is applied.

(The same functional objects as in the above embodiment are given the same numbers.) In the hand washing water supply means 2 of this embodiment, a shower nozzle 26 is fastened to the tip of a water supply pipe 23 by a fastening fitting 29. The air passage 34 of the hot air generating means 3 is formed in a duct 39 having a flange-shaped portion 38 formed at its tip.

In this embodiment, a shower nozzle 42 equipped with a photoelectric sensor 74 is used as the air outlet 4, and the shower nozzle 42 houses the shower nozzle 26 therein. In the shower nozzle 42, the brim 38 of the duct 39 is inserted into the wall 43, and the inside is a mixing chamber 44 for hot air and hand washing water.
It acts as. Here, the hole 26a formed in the shower nozzle 26 is the same as the hole 4 formed in the shower nozzle 42.
2a, and the holes 26a and 142a are formed on the same line. For this reason, the hole 2 of the shower nozzle 26
The hand washing water blown out in a shower form from 6a flows from the hole 26a of the shower nozzle 26 to the hole 42a of the shower nozzle 42.
Since the shower nozzle is formed to have a larger diameter and is formed on the same line, it is blown out vigorously in the form of a shower without being obstructed by the wall portion 43 of the shower nozzle 42.

Next, another embodiment will be described.

a) In this embodiment, the electric control circuit controls the blower fan drive motor and the heater to operate at the same time. The motor may be controlled to operate. In this case, the rise of hot air is improved.

b) In this example, a reflection type photoelectric sensor was used as a sensor for sensing a part of the human body, but a blocking type photoelectric sensor, a sensor using ultrasonic waves, a manual switch, or other sensing means could be used. Also good.

C) In this embodiment, the photoelectric sensor is attached to the casing or the shower nozzle, but it may be attached to a fixed member other than the casing or the shower nozzle.

d) In this embodiment, a honeycomb was attached to the outlet and a shower nozzle was provided, but other nozzles that can be switched to a shower-like, mist-like, or straight shape may also be provided.

e) In this example, a positive temperature coefficient thermistor (P
TC) Although a heater was used, other heating elements may be used. Possible heating elements include nichrome wire and infrared heaters.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing a washroom handwashing device to which the first embodiment of the handwashing device of the present invention is applied, and FIG. 2 is a handwashing control of the washroom handwashing device to which the first embodiment of the handwashing device of the present invention is applied. An electric circuit diagram showing the device, FIG. 3 is a second diagram of the hand washing device of the present invention
Sectional view showing a washroom hand washing device to which the embodiment is applied, No. 4
The figure is a sectional view showing an air outlet of a washroom handwashing device to which a third embodiment of the handwashing device of the present invention is applied. In the figure 1... Washroom hand washing device 2... Hand washing water supply means 3
... Warm air generation means 1 ... Hand wash control device (control means) 11 ... Washroom

Claims (1)

[Scope of Claims] 1) A warm air generating means for generating warm air; a hand washing water supply means for supplying hand washing water in the form of a shower into the airflow of the warm air; the warm air generating means and the hand washing water supply; and a control means for the hand washing device. 2) The control means controls the hot air generation means so as to continue generating hot air for a certain period of time after the supply of hand washing water from the hand washing water supply means is stopped. The hand washing device according to paragraph 1.