JP2774673B2 - Hand drying equipment - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a hand drying device for drying hands by warm air after washing hands.

(Prior Art) Conventionally, this type of hand drying apparatus is described in the specification and drawings of Japanese Utility Model Application No. 63-167493 (Japanese Utility Model Application Laid-Open No. 2-86393) filed by the applicant of the present invention. There is something.

This is a hot air blowing nozzle installed on the upper surface of the counter incorporating a hand washing machine, and the hot air blowing nozzle and a hot air generator arranged in the space below the counter are connected by a hot air duct, Hot air is blown out when the photoelectric sensor detects the hand that has been placed in the drying position.

The hot-air blowing nozzle and the photoelectric sensor are incorporated in the same casing installed on the counter, and the hot-air blowing nozzle has its blowing axis obliquely upward toward the back of the counter, and the photoelectric sensor is positioned on the front side. Are provided diagonally upward with the direction of the infrared ray directed toward the front of the counter, and are provided on the back side, respectively.

(Problems to be Solved by the Invention) In the above-mentioned conventional hand drying device, warm air is blown upward toward the back side of the counter or the basin, that is, toward the wall behind the counter. It is possible to keep the position of the hand to be held high and to make the posture of use easy, and to avoid the unpleasant situation where the user is exposed to the warm air and the water droplets blown by the warm air fall on the user. On the other hand, there is a problem that water droplets blown from hands by hot air adhere to a wall surface on the back side of the counter or a mirror attached to the wall surface, and cause dark spots and stains.

In addition, since the hot-air blowing nozzle is provided upward, it is easy to cause mischief, such as pouring water into the nozzle or packing waste.

The present invention has been made in view of the above problems of the prior art, without impairing the advantages of the above prior art,
An object of the present invention is to prevent water drops from adhering to a wall or a mirror and to prevent mischief.

(Means for Achieving the Object) In order to achieve the above object, in the hand drying device of the present invention, a hot air blowing nozzle connected to a hot air generator is installed on a counter, and the hot air blowing is performed. In a hand dryer in which the blowout axis of the nozzle is directed upward toward the back of the counter, a hot air blowout nozzle provided rotatably back and forth on the counter is openably and closably urged by the wind blown from the nozzle. A cover which intersects with the blowing axis of the hot air blowing nozzle in the opened state, first detecting means provided outside the cover to sense a user and generate a sensing signal, and a temperature detecting means provided inside the cover. Second detection means for generating a detection signal by sensing the hand of the user inserted above the wind blowing nozzle, locking means for locking the open / close state of the cover, and first and second detection hands A control unit for inputting a sensing signal of a stage and controlling the operation of the hot air generator and the locking means based on the sensing signal, wherein the control unit is at least one of first and second detecting means When the detection signal disappears, the operation of the heating heater of the hot air generator is stopped, and the operation of the locking means and the blower fan of the hot air generator is stopped after a lapse of a predetermined time from the stop of the operation of the heater.

Further, the control unit may be configured to stop the operation of the hot air generator and the lock unit when the detection signal of the second detection unit disappears.

(Operation) In the hand drying device configured as described above, the hot air blowing nozzle is usually covered with a cover, and the cover is opened when used. This cover blocks the warm air that blows obliquely upward from the hot air blowing nozzle toward the back of the counter and does not hit the wall on the back of the counter. According to the first aspect, when the sensing signal of at least one of the first and second detecting means is extinguished, the heating heater of the hot air generator is first stopped, and after a predetermined time has elapsed, the heater is cooled and then the air is blown. Stops and the cover closes, and in the case of the second aspect, even if the sensing signal of the first detecting means does not disappear, when the sensing signal of the second detecting means disappears, all the operations are stopped simultaneously and the cover is closed.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings. FIGS. 1 to 5 show the first embodiment, and FIGS. 6 to 7 show the second embodiment.

First, the first embodiment will be described with reference to FIGS.

In the figure, (A) is a counter fixed to the wall surface (C) by a suitable means, and a hand washer (B) provided with a faucet device (9) is integrally incorporated therein. A main member (10) of the hand dryer and a cover (3) for opening and closing the main member (10) are installed on the counter (A) at an appropriate distance.

The main body member (10) has a hot air blowing nozzle (2),
A first detection means (4) and a second detection means (5) are provided, and an exhaust port (8) is provided.

The hot air blowing nozzle (2) is formed in the main body member (10) as a through hole vertically penetrating the main body member (10) and has a cylindrical hot air duct connection port (12) projecting to the lower surface side of the main body member (10). The hot air duct connection port (12) penetrates the counter (A) and extends to the space (11) below the counter (A), and the hot air generator (13) is provided through the hot air duct (13). It is connected to the hot air supply port (1a) of (1).

The hot air blowing nozzle (2) is formed so that the blowing axis is obliquely upward toward the back side of the counter (A).

Both the first detecting means (4) and the second detecting means (5) diffusely reflect the projection light such as invisible infrared rays projected from the photoelectric sensor, for example, the light projecting element, upon the object to be detected, and the reflected light is received by the light receiving element. It comprises a conventionally well-known diffuse reflection photoelectric sensor which outputs a detection signal when receiving light.
The detecting means (4) is arranged so that the projection light is projected toward the front side of the counter (A) at right angles to the wall surface (C) and horizontally, that is, the front surface of the main body member (10), that is, the counter (A). It is provided on the surface facing the front side.

The second detecting means (5) is a hot air blowing nozzle (2).
The projection light is projected slightly upward toward the front side of the counter (A) on the inclined surface formed in the main body member (10) in a rising shape on the further back side, and the optical axis thereof is set to the hot air blowing nozzle (2). ) Is provided so as to intersect the blowing axis of the nozzle (2) slightly above the nozzle (2).

Therefore, the first detecting means (4) detects when the user stands before the place where the main body member (10) is installed,
The second detection means (5) detects when a hand is put out above the hot air blowing nozzle (2).

These two detection means (4) and (5) are respectively connected to a control unit (7) described later. Thus, the sensing signals of the two sensing means (4) and (5) are input to the control section (7).

The air outlet (8) is formed at the back of the main body member (10), that is, in the upper center of the surface facing the back side of the counter (A), diagonally downward from the surface to the bottom, and corresponds to the air outlet (8). To the space (11) below the counter (A) through the opening (14) opened in the counter (A).

On the other hand, the cover (3) has a bowl shape having a size large enough to cover the main body member (10) and cover the entire main body member (10), and has a protruding portion at one place on the outer peripheral surface near the opening edge thereof. (15), and the protruding portion (15) is rotatable by a shaft (17) to a pair of bearing portions (16) raised near the back of the main body member (10) of the counter (A). The body member (10) is pivotally attached to cover the main body member (10) and is provided in a laid state.

Then, the cover (3) is opened by the upward upward rotation to expose the main body member (10) to the front side of the counter (A), and the main body member (10) is downwardly rotated forward. Can be obscured.

Also, the cover (3) is partially cut away so that the first detection means (4) can detect a person standing in front thereof even when the cover (3) is closed by covering the main body member (10). Balancer (18) to be able to rotate with small force
Is provided.

The cover (3) is fixed at an open position by a lock means (6).

The locking means (6) is formed of an electromagnet provided on a bearing (16) of the cover (3) and is formed on a shaft (17), and a projection corresponding to the electromagnet (21) at a predetermined open position of the cover (3). The power supply to the electromagnet (6) is controlled by the control unit (7).

The open lock position of the cover (3) is the same as that of the cover (3).
Is located at a position where the hot air blown from the hot air blowing nozzle (2) is blocked, and the cover (3) does not interfere with hand drying work between the hot air blowing nozzle (2) and the outlet of the hot air blowing nozzle (2). The position is determined to have an interval.

The hot air generator (1) has a conventionally well-known structure and form in which a blower (1b) is provided with a heater (1c) at an outlet thereof, and is arranged in a space (11) below the counter (A). The hot-air supply port (1a) is placed and fixed on a stand (20) provided with its hot-air supply port (1a) facing downward.
And a hot air duct connection port (12) of the hot air blowing nozzle (2) is connected in a substantially U-shape via a hot air duct (13).

The hot air generator (1) is electrically connected to the control unit (7) to turn on and off the blower fan (1b) and the heater (1c).
The FF is controlled by the control unit (7).

The control unit (7) removes noises other than the sensing signals from the first detecting means (4) and the second detecting means (5) and respectively receives the gate circuits (7a) (7b) and the gate circuit ( 7a), the detection signal of the first detection means (4) is inputted, and the electromagnet (6) and the blower fan (1) are inputted by the input of the signal.
b) An output is generated, and the detection signal of the second detection means (5) that has passed through the gate circuit (7b) and the first output circuit (7c) that disappears when the timer (7h) described later expires is input. A second output circuit (7e) and a gate circuit (7a) (7b) which generate an output to the heating heater (1c) by inputting the signal, and turn off the output when an output from a NAND circuit (7g) described later is input. ), The NAND circuit (7g) which receives the sensing signals of the first sensing means (4) and the second sensing means (5) and generates an output when one or both of the sensing signals disappear. A counter (A) with a timer (7h) that starts when the output of the NAND circuit (7g) is generated
It is deployed in place in the lower space (11).

The electromagnet (6) and the blower fan (1b) are activated by the output from the first output circuit (7c), and stop operating when the output disappears. The heating heater (1c) is activated by the output of the second output circuit (7e), and stops operating when the output is extinguished.

Thus, according to the first embodiment, the user stands in front of the installation portion of the drying device main body member (10) of the counter (A),
When this is detected by the first detecting means (4), the blower fan (1b) of the hot air generator (1) starts operating, and the air blows out from the hot air blowing nozzle (2), and at the same time the electromagnet (6).
Is turned on, the cover (3) is blown up by the wind blown out from the hot air blowing nozzle (2) and pivots upward and backward to open the main body member (10) and to rotate the shaft (17) of the cover (3). Is held by the electromagnet (6) and the cover (3) is kept open at a predetermined position.

Next, if the hand is inserted between the opened main body member (10) and the cover (3) and held over the hot air blowing nozzle (2), this is detected by the second detecting means (5) and the temperature is detected. The heating heater (1c) of the wind generator (1) is turned on, and the air blown out from the hot air blowing nozzle (2) is switched to hot air.

The wind and hot air blown out from the hot air blowing nozzle (2) collide with the cover (3), but since the cover (3) is formed in a bowl shape, the air outlet (8) extends along the inner surface thereof.
It is collected in a part, discharged through a discharge port (8) and an opening (14) of the counter (A) into a space (11) below the counter (A), and is again supplied to the hot air generator (1). Then, after drying of the hands, the hot air blowing nozzle (2)
When the user removes his hand from above or moves away from the front of the counter (A), the detection of the second detection means (5) or both of the first and second detection means (4) and (5) is lost, and the temperature becomes low. The operation of the heating heater (1c) of the wind generator (1) is stopped, and at the same time, the timer (7h) starts. When the timer expires, the blower fan (1b) stops and the locked state by the electromagnet is released. Then, the cover (3) lifted by the warm air and locked by the electromagnet (6) descends to the near side by its own weight, and the cover (3) is closed.

FIG. 5 shows a time chart when the heating heater (1c) is turned off by turning off the second detecting means (5) in the first embodiment.

Next, FIG. 6 shows a control section (7) of the second embodiment. The control section (7) includes a first detection means (4) and a second detection section (4).
The gate circuits (7a) and (7b) that receive only the detection signal from the detection means (5), and when the detection signal of the first detection means (4) that has passed through the gate circuit (7a) is input, it is stored and self-held. A self-holding circuit (7d) for generating an output signal during self-holding, and an output for the electromagnet (6) and the blower fan (1b) while the output signal from the self-holding circuit (7d) is generated. And a first output circuit (7c) that stops output when the output signal disappears, and a sensing signal of the second detecting means (5) that has passed through the gate circuit (7b). ), The second output circuit (7e), which turns off the output by the disappearance of the sensing signal, and the sensing signal of the second detecting means (5) that has passed through the gate circuit (7b), and the input disappears. Then, the NOT circuit (7f) that releases the self-holding of the self-holding circuit (7d) And it is made of, and the like.

Therefore, in the second embodiment, as in the first embodiment, the user stands in front of the installation portion of the counter (A) drying device main body member (10), and when this is detected by the first detection means (4), the cover is opened. (3) is opened and locked in an open state, and then a hand is inserted above the hot air blowing nozzle (2), and when this is detected by the second detection means (5), warm air is blown from the hot air blowing nozzle (2). Although the air blows out, the hand is pulled from above the hot air blowing nozzle (2), and when the detection of the second detecting means (5) stops, the blower fan (1b), the heater (1c), and the electromagnet (6) are all turned off. It differs from the first embodiment in that the cover (3) closes.

 FIG. 7 shows a time chart of this embodiment.

(Effects) Since the present invention has the above-described configuration, the following effects can be obtained.

Since the hot air blown out from the hot air blowing nozzle is blocked by the cover in front of the wall, water drops blown from the hand by the hot air do not adhere to the wall surface or the mirror installed on the wall surface. is there.

When not in use, the hot-air blowing nozzle is covered with the cover, so that it is difficult to make mischief such as pouring water into the nozzle or packing waste.

When the user finishes drying the hand and leaves the user in front of the hand drying device, and the first detection unit and the second detection unit stop sensing, the cover is automatically closed. Therefore, there is no fear of forgetting to close the cover.

When at least one of the first and second detecting means is no longer detected, the heating heater is stopped first, and then the blower fan is stopped after a predetermined time, so that the heater is quickly cooled, and there is no fear of heating or the like, and the life of the heater is extended. become longer.

According to claim 2, in addition to the above, if the user withdraws his / her hand from the hot air blowing nozzle even after the user does not leave the front of the hand drying device after the use, and the second detecting means no longer senses, warm air Since the operation of the generator and the lock means is immediately stopped and the cover is closed, there is an effect of saving energy as compared with the first embodiment.

[Brief description of the drawings]

The drawings show the first embodiment of the present invention in FIGS.
An embodiment is shown in FIGS. 6 and 7, respectively. FIG. 1 is a sectional view of a hand-washing counter incorporating the hand-drying device of the present invention, FIG. 2 is a perspective view, and FIG. Sectional view, fourth
FIG. 5 is a block diagram of the control unit, FIG. 5 is an operation time chart, FIG. 6 is a block diagram of a control unit which is a main part of the second embodiment, and FIG. 7 is an operation time chart. A: Counter, B: Handwasher 1: Hot air generator, 2: Hot air blowing nozzle 3: Cover, 4: First detection means 5: Second detection means, 6: Locking means 7: Control unit

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁶ , DB name) A47K 10/48

Claims (2)

(57) [Claims] 1. A hot air blowing nozzle (2) connected to a hot air generator (1) is installed on a counter (A), and a blowing axis of the hot air blowing nozzle (2) is located on the back side of the counter. In the hand drying device which faces upward, the hot air blowing nozzle (2) is rotatably provided back and forth on the counter (A) so as to open and close freely.
A cover (3) that intersects with the blowing axis of the hot-air blowing nozzle (2) in the open state and is provided outside the cover (3) and sensed by the user when the user blows the air. First detecting means (4) for generating a detection signal, and second detecting means for detecting a user's hand provided in the cover (3) and inserted above the hot air blowing nozzle (2) and generating a detection signal. (5), a lock means (6) for locking an open state of the cover (3), and a detection signal of the first and second detection means (4) and (5) are inputted, and the temperature is detected based on the detection signal. A control unit (7) for controlling the operation of the wind generator (1) and the lock unit (6), wherein the control unit (7) is at least one of the first and second detection units (4) and (5) The operation of the heating heater (1c) of the hot air generator (1) is stopped by the disappearance of the sensing signal of Both hand drying apparatus characterized by stopping the operation of the heater blower fan after a predetermined time has elapsed from the deactivation of the (1c) locking means (6) and a warm air generator (1) (1b). 2. A hot-air blowing nozzle (2) connected to a hot-air generator (1) is installed on a counter (A), and a blowing axis of the hot-air blowing nozzle (2) is located on the back side of the counter. In the hand drying device which faces upward, the hot air blowing nozzle (2) is rotatably provided back and forth on the counter (A) so as to open and close freely.
A cover (3) intersecting with the blowing axis of the hot-air blowing nozzle (2) in the open state and a sensing signal provided outside the cover (3) for sensing a user in the opened state. Detecting means (4) for generating an alarm
A second detection means (5) provided in the cover (3) for detecting a user's hand inserted above the hot air blowing nozzle (2) and generating a detection signal; and a cover (3). Locking means (6) for locking the open state and sensing signals of the first and second detecting means (4) and (5) are inputted, and the hot air generator (1) and the locking means ( A control unit (7) for controlling the operation of the hot air generator (1) and the lock unit (6) according to the disappearance of the detection signal of the second detection unit (5). A hand dryer, wherein the operation of the hand dryer is stopped.