JP2006187660A - Hand drier - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To have a hand drier easy to maintain sanitarily and to promote cost reduction. <P>SOLUTION: The hand drier to dry the hand by jetting a high-speed air stream from an air nozzle of a high-pressure airflow generator into a processing space having broadness and depth to be able to put the hand in or take out of to blow water off the hand by high-speed airflow motion energy into the processing space has a water receiving part 4 to receive water generated in the hand insertion part 3 by a drain tank 7 provided at the lower part of the hand insertion part 3 of the processing space from a water inlet 5 so that the water level of the drain tank 7 can be seen by the light reflected from a reflection member 9 through the water inlet 5 of the water receiving part 4. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a hand drying device for hygienically drying wet hands after washing.

  As a device for hygienically drying a wet hand after washing by avoiding direct contact such as handkerchief or hand wiping, there is a hand drying device that blows off water droplets adhering to the hand by a high-speed air flow and dries it. For example, Patent Document 1 discloses a hand drying device that has a concave-shaped hand insertion portion that is open on the front and sides, and that ejects a high-speed air flow to the hand insertion portion by an air nozzle. Most of the devices of this type are equipped with a high-pressure air flow generator that sends a high-pressure air flow to the air nozzle, but the arrangement of the high-pressure air flow generator and the configuration on the air suction side are devices that handle water. Since it is a wiping process using a high-speed air flow, various ideas have been taken.

JP 2000-93348 A

  The water blown into the hand insertion part in accordance with the drying process of the hand is received in the drain tank provided below the hand insertion part through the water receiver constituting the bottom part of the hand insertion part or drained by the drain pipe. Has been processed by. In the hand dryer that stores the wastewater generated by the drying process in the drain tank, it is necessary to treat the wastewater properly from the viewpoint of hygiene. However, the water level in the drain tank is difficult to understand, and appropriate wastewater treatment is not possible. There is a problem that it is difficult to do. The liquid level detection means widely employed in fuel tanks such as heaters requires such parts and, when assembled, must adopt a water structure and increase costs. Moreover, although it is easy to comprise a drain tank with a transparent material so that the contents can be visually recognized, the fact that the sewage is always visible is not good for the user.

  The present invention has been made in order to solve the above-described conventional problems, and an object of the present invention is to obtain a hand-drying apparatus that can promote cost reduction that is easy to manage hygiene.

  In order to achieve the above object, the invention according to claim 1 is characterized in that a working airflow generated by a high-pressure airflow generator is ejected as a high-speed airflow by a high-pressure airflow generator into a processing space having a width and depth in which a hand can be put in and out. In the hand drying device that blows the moisture adhering to the hand into the processing space by the kinetic energy of the high-speed air flow and dries the hand, the water generated in the processing space is received below the processing space from below the water guide hole. A water receiver is provided to flow down to the tank, and means for allowing the water level of the tank to be visually recognized by reflected light from the reflecting means through the water guide hole of the water receiver is adopted.

  According to the present invention, it is possible to obtain a hand-drying device that can promote a reduction in cost that facilitates hygiene management, in which the water level of the tank can be visually recognized by the reflecting means.

  The hand drying apparatus of the present invention is a method in which a working airflow generated by a high-pressure airflow generator is ejected as a high-speed airflow by an air nozzle into a processing space having a width and depth in which a hand can be put in and out, and the moisture adhered to the hand in the processing space. The hand is blown into the processing space by the kinetic energy of the high-speed air flow to dry the hands. A water receiver is provided below the processing space for receiving water generated in the processing space and flowing down from a water guide hole to a tank provided therebelow. The water level of the tank is made visible by the reflected light from the reflecting means through the water guide hole of the water receiver. Thereby, the water level of the tank can be visually recognized by the reflecting means.

Embodiment 1
The present embodiment shown in FIG. 1 to FIG. 8 relates to a wall-embedded hand-drying apparatus in which most of the portion excluding the front surface portion is embedded in a wall body W of a room. In this hand dryer, high-pressure air from a high-pressure airflow generator 2 incorporated in a main body box 1 that forms an outer shell having a hand insertion port on the front is sent to the vicinity of the hand insertion port and continues to the hand insertion port. A high-speed air flow is formed as a working air flow related to the hand drying that blows away moisture in the hand insertion portion 3 as a processing space.

  The manual insertion part 3 is formed in the lower part of the front surface of the main body box 1 as a concave part in which the front of the hand can be inserted and removed, and the bottom part is constituted by a water receiving part 4 integrally formed in the main body box 1 in a shelf shape. ing. As shown in FIG. 1, the water receiving portion 4 is provided with a water guide hole 5 for drainage at the back, and is inclined so that water flows toward the water guide hole 5. As shown in FIG. 4, a protruding edge 6 for restricting the movement of water in the horizontal direction is formed below the water guide hole 5.

  Below the water receiving portion 4, a drain tank 7 having an open container structure for storing water flowing down from the water guide hole 5 is provided so as to be able to be inserted and removed from the front surface. The inner surface of the hand insertion portion 3 is impregnated with a water-repellent coating such as silicon or fluorine, or a hydrophilic coating such as titanium oxide, or an antibacterial agent to reduce the adhesion of dirt to the inner surface or bacteria. Reducing breeding is being attempted. A mountain-shaped reflecting member 9 having a forward inclined surface 8 facing the water guide hole 5 is attached to the bottom of the drain tank 7 facing the water guide hole 5 of the water receiving part 4 (see FIG. 5). The reflecting member 9 has a height substantially corresponding to the water level when the drain tank 7 is full, and is configured so that the inclined surface 8 can be seen through the water guide hole 5 while standing in front of the manual insertion portion 3. (See FIG. 6). Although the reflecting member 9 may be configured to be reflective as a whole, the reflecting member 9 may be configured to have a reflecting material 10 such as a metal foil attached to the inclined surface 8 as shown in FIG. Moreover, if comprised with an elastic material, it can also be provided in the back side of the water receiving part 4. FIG.

  The high-pressure airflow generator 2 includes a DC brushless motor (which may be a normal commutator motor or an induction motor), a drive circuit that drives the DC brushless motor, and a turbo fan that is rotated by the DC brushless motor. In the embodiment, the main body box 1 is attached directly above the hand insertion portion 3 with the intake side as the back side. The intake side of the high-pressure airflow generator 2 faces the intake passage 11 provided in the longitudinal direction on the front surface of the main body box 1 so that air can be sucked from the suction port 12 at the end of the intake passage 11. ing. The intake passage 11, including the suction port 12, is configured on the front side of the wall surface contact flange 13 provided on the side surface of the main body box 1. The depth from the front surface of the main body box 1 to the wall surface contact flange 13 is small, and the back side from the wall surface contact flange 13 is embedded in the wall body W. In some cases, the intake passage 11 is configured on the back side of the manual insertion portion 3. However, when the depth of the apparatus is increased by the intake passage and water leaks from the manual insertion portion 3, Is often inconvenient. The suction port 12 of the intake passage 11 can face the room as long as it is above the hand insertion portion 3 on the front side of the wall surface contact flange 13 of the main body box 1 and can function as the suction port 12.

  For example, the suction port 12 can be disposed in the lower part indicated by A in FIG. 7, the side part indicated by B, the upper part indicated by C, or the front face indicated by D. From the viewpoint of design and appearance, The lower part is excellent. That is, the lower part of the front surface is the upper edge of the hand insertion port of the hand insertion unit 3, and by making the suction port 12 downward, the user cannot see it in a normal state and is easily contaminated around the suction port 12. Can be made inconspicuous and maintain its appearance. In the case where the suction port 12 is disposed at this position, if one is provided on each of the left and right before the position of the air nozzle 14 to be described later, there is less interference with the high-speed air flow blown from the air nozzle 14, and the suction air It is convenient that water is not mixed into the water.

  When the suction port 12 is disposed on the side, upper part or front surface, the adjacent wall surface W or the front surface of the apparatus is easily contaminated with dust or the like of the suction airflow, and there is a problem that the front surface lacks design properties. There is no fear of entering, and the intake passage 11 can be configured to be short, and there is an advantage that the suction performance of the high-pressure airflow generator 2 can be improved. In the course of the intake passage 11, even if moisture enters the intake passage 11, a water blocking member 15 that prevents the high pressure airflow generator 2 from reaching the side is provided so as to be detachable from the side. (See FIG. 1). The water shielding member 15 is a baffle plate that allows ventilation, and an air filter 16 that filters air passing through the intake passage 11 is connected to the obstruction plate. The air filter 16 is provided on the downstream side of the water shielding member 15, and can be attached and detached together with the water shielding member 15 by insertion and removal. The water shielding member 15 and the air filter 16 may be integrated or connected.

  A plurality of outlets of the high-pressure airflow generator 2 are opened in the radial direction at intervals in the circumferential direction on the outer periphery of the circular cup-shaped fan casing. The outside of the fan casing is covered with a circular cup-shaped casing provided with a guide path in a direction along the rotational direction of the turbofan, and the high-pressure air sent from the high-pressure airflow generator 2 is received at the end of the guide path of the casing. An air nozzle 14 that is converted into a high-speed air flow and blows out in a line shape to the manual insertion portion 3 is connected.

  The air nozzle 14 is attached to the upper center of the hand insertion portion 3 in the vicinity of the hand insertion port in the lateral direction with the jet port facing downward, and blows a high-speed air current on the hand placed in the hand insertion portion 3 to rub the hand. Remove water droplets from the surface of the hand and blow it off without matching. The suction ports 12 of the intake passage 11 are opened downward on both front sides of the air nozzle 14.

  In this hand drying device, when the hand is inserted into the hand insertion portion 3 from the hand insertion opening to the vicinity of the wrist, the hand is detected by the sensor for detecting the hand, and the high pressure air flow generator 2 is activated by the processing of the control circuit. Then, a high-speed air flow having high kinetic energy is blown out from the air nozzle 14 into the hand insertion portion 3, and the water adhering to the hand is blown off to the water receiving portion 4 of the hand insertion portion 3. Furthermore, by inserting and removing the hand in the hand insertion portion 3, all water droplets adhering to the entire hand are eliminated, and the hand is dried. When the hand is completely removed from the hand insertion portion 3 after the hand drying process is completed, it is detected that the hand has been removed by the sensor that detects the hand, and the high-pressure airflow generator 2 stops. The water droplets blown from the hand flow down toward the water guide hole 5 in the water receiving portion 4 and are accommodated in the drain tank 7 from the water guide hole 5. Since the water receiving portion 4 is formed integrally with the main body box 1 and there is no gap as shown in FIG. 8, water enters outside the drain tank 7 from outside the water guide hole 5 and leaks out of the main body box 1. There is no such thing as.

  In the high-pressure airflow generator 2, air near the hand insertion port is sucked from the suction port 12 through the intake passage 11. Since the suction port 12 is on the front side on both sides of the air nozzle 14, the water blown from the hand by the drying process is hardly sucked into the suction port 12. Even if moisture is sucked in, it is blocked by the water shielding member 15 on the way and does not reach the high-pressure airflow generator 2, so that it is possible to avoid a failure of the high-pressure airflow generator 2 due to water intrusion. The water shielding member 15 can be removed together with the air filter 16 and easily removed, and both can be cleaned together.

  It is desirable to treat the sewage collected in the drain tank 7 without leaving it for a long time to maintain a clean state. However, if the amount of sewage can be seen from the outside using a transparent material, the feeling of use is impaired, and the water level If the detector is attached, the cost increases. In this embodiment, the drain tank 7 is passed through the water guide hole 5 of the water receiving portion 4 while standing in front of the manual insertion portion 3 by a simple reflecting member 9. The level of sewage can be easily observed. The reflecting member 9 has the inclined surface 8 facing the water introduction hole 5, and the reflection level is clearly different between the immersed portion and the non-immersed portion, so that the water level can be read by the difference. Accordingly, it is possible to contribute to maintaining the cleanliness of the drain tank 7 at a low cost without impairing the design and the feeling of use, and it becomes a hand-drying device that is easy to clean and easy to manage hygiene.

  The technical matters described in the present embodiment are not limited to the wall-embedded type, but can be applied to a wall-mounted type or a floor-standing type.

It is a perspective view which shows the hand-drying apparatus of embodiment. It is a side view which shows the hand-drying apparatus of embodiment. FIG. 8 is a plan configuration diagram in the direction of arrow A in FIG. 2 or FIG. 7. It is a section lineblock diagram of the drain tank part of the hand dryer of an embodiment. It is a perspective view which shows the reflection member of the hand dryer of embodiment. It is function explanatory drawing of the reflection member of the hand dryer of embodiment. It is a front view which shows the arrangement | positioning position of the suction inlet of the hand dryer of embodiment. It is sectional drawing which shows the structure of the water receiving part of the hand dryer of embodiment.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Main body box, 2 High pressure airflow generator, 3 Hand insertion part, 4 Water receiving part, 5 Water conveyance hole, 7 Drain tank, 9 Reflective member, 10 Reflective material, 11 Intake passage, 12 Suction port, 14 Air nozzle, 15 Water shielding member, 16 Air filter.

Claims (2)

The working airflow generated by the high-pressure airflow generator is ejected as a high-speed airflow by the air nozzle into the processing space with a width and depth where hands can be put in and out, and the moisture adhering to the hand in the processing space is generated by the kinetic energy of the high-speed airflow. A hand drying device for drying a blow-off hand in a processing space, wherein a water receiver is provided below the processing space for receiving water generated in the processing space and flowing down from a water guide hole to a tank provided thereunder. A hand-drying device in which the water level can be visually recognized by reflected light from the reflecting means through the water guide hole of the water receiver. The working airflow generated by the high-pressure airflow generator is ejected as a high-speed airflow by the air nozzle into the processing space with a width and depth where hands can be put in and out, and the moisture adhering to the hand in the processing space is generated by the kinetic energy of the high-speed airflow. A wall-embedded hand drying device that is blown into the processing space and is mostly embedded in the wall except for the front part of the main body that dries the hand, and receives water generated in the processing space below the processing space. A water receiver that flows down from a water guide hole to a tank provided thereunder is an integrated structure without a gap with the main body structure forming the treatment space, and the water level of the tank is reflected by the reflection means through the water guide hole of the water receiver. A hand-drying device that can be visually recognized.

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