JPH0898787A - Blast drying device - Google Patents

Abstract

PURPOSE: To make an eye or a face hard to receive the irradiation with ultraviolet rays even when a user allows his head to approach an irradiation region of ultraviolet rays or looks into the irradiation region in a blast drying device performing the blowing-off of hot air from an opening part and the irradiation with ultraviolet rays. CONSTITUTION: Ultraviolet rays are emitted from a sterilizing lamp 8 to be emitted from the opening part of a sterilizing lamp cover 7. The ultraviolet scattering preventing member 9 attached to the opening part of the sterilizing lamp cover 7 guides the ultraviolet rays emitted from the sterilizing lamp 8 in the direction parallel to the arranging surface of a duct 15 and having the same angle of inclination as the duct 15 to prevent them from scattering in a direction other than this direction. Or, the ultraviolet scattering preventing member 9 prescribes the emitting direction of ultraviolet rays to the direction inclined on the back surface side of this device with respect to the axial line of the duct 15. By this constitution, ultraviolet rays are prevented from scattering in the front direction where a user is positioned. Further, a tray surrounding the front space of a hot air blowoff port 12 from left and right side surfaces, a bottom surface and a back surface is attached.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a blower / dryer provided in a washroom, a toilet or the like for automatically drying a wet hand by hand washing.

[0002]

2. Description of the Related Art In recent years, there has been a remarkable spread of this type of blast dryer in places where a large number of unspecified people use it, such as stations, large stores, toilets in various public facilities, and washrooms. As a result, the number of proposals for improvement of the blast dryer is also increasing.

One of such proposals for improvement is disclosed in, for example, Japanese Utility Model Laid-Open No. 61-21393.

The outline of this proposal is that a perforated plate is arranged only on the lower surface of the drying space of a blower / drying device to dry liquid substances such as water droplets and soap attached to the hand that has been put out in the drying space. It is intended to prevent the liquid substance from scattering in a wide range inside the device by dropping the liquid substance into a tray provided below the perforated plate by the air flow blown from the upper part of the space. The perforated plate and the tray are attachable to and detachable from the apparatus body without tools so that the cleaning operation in the drying space can be easily performed.

[0005]

By the way, in the above-mentioned conventional blast dryer, ultraviolet rays are constantly emitted from a sterilizing lamp installed in the upper part of the drying space in order to sterilize the hand thrown into the drying space. Therefore, a warning display for protecting the eyes of the user from ultraviolet rays is provided at an appropriate position.

However, even if such a warning is displayed, there is no guarantee that the user will not look into the inside of the drying space of the apparatus. It may be assumed that the user mistakenly looks in, or that a child whose interest level is about the same as the height of the face of the blast dryer is looking into the child.

Therefore, a first object of the present invention is to provide a blast drying apparatus which is less likely to be directly exposed to ultraviolet rays to the eyes and face even when a user accidentally looks inside the drying space. .

A second object of the present invention is to provide a blower / dryer in which the inside of the drying space cannot be seen through the opening through which a hand is placed for drying and disinfecting.

[0009]

In order to achieve the above-mentioned first object, the first aspect of the present invention is that a scattering suppressing member for suppressing scattering of sterilizing light outside a predetermined irradiation direction is provided in a housing. It is characterized in that it is provided in a region close to the body opening.

In order to achieve the above-mentioned second object, the second aspect of the present invention is to provide a tray which surrounds the front space of the above-mentioned housing opening portion and its adjacent portion from a direction other than the hand insertion direction. It is characterized by having.

[0011]

According to the first aspect of the present invention, since the opening for emitting the germicidal light is provided with the scattering restraining member for restraining the germicidal light from scattering outside the predetermined irradiation direction, the head of the user. Even if it approaches the opening, it is hard to receive ultraviolet rays to the eyes and face, and even if a child tries to look into the germicidal lamp, the scattering suppression member blocks the line of sight and makes it difficult to receive direct ultraviolet rays. .

According to the second aspect of the present invention, since the tray is provided so as to surround the front space of the opening in the direction other than the direction in which the hand is inserted, this tray is provided in front of the user. Prevents the head of the person from approaching and prevents the user from looking into the inside of the opening, thereby making it less likely to be directly exposed to ultraviolet rays.

[0013]

Embodiments of the present invention will now be described in detail with reference to the drawings.

FIG. 1 and FIG. 2 show the structure of a blast dryer according to an embodiment of the present invention.

This device includes a casing 1, an electric motor 2, a fan 3, a heater 4, a controller 5 and a hand detecting sensor 6 which are built in the casing 1, and a germicidal lamp cover externally attached to a lower end portion of the casing 1. 7, a germicidal lamp 8 and an ultraviolet light scattering suppressing member 9.

The casing 1 is fixed by abutting the rear surface thereof against the wall 10, and an intake port 11 is formed in the upper surface separated from the rear surface. On the other hand, a warm air outlet 12 is provided at the lower end on the front side of the casing 1, and a germicidal lamp cover 7 and an ultraviolet light scattering suppressing member 9 attached to the lower portion of the germicidal lamp cover 7 are provided at the lower edge on the rear side. There is. The electric motor 2 provided in the casing 1 has a variable rotation speed, and holds the fan 3 via the output shaft 13. A jacket 14 is provided around the fan 3 to form an air flow path from the intake port 11 to the hot air outlet 12. A duct 15 is attached to a portion of the jacket 14 near the hot air outlet 12 in a state in which the front side of the casing 1 is appropriately inclined from the left side to the right side in FIG. A filament-type heater 4 wound around is incorporated.

A cylindrical lamp is used as the germicidal lamp 8. The germicidal lamp 8 is provided in the germicidal lamp cover 7 in a state of extending in the left-right direction in FIG. 2 and is always lit, and ultraviolet rays of a predetermined intensity (for example, 253.7 nm line) will be described in detail later. It is emitted obliquely downward through the ultraviolet scattering suppressing member 8.

A hot air temperature sensor (not shown) is provided near the hot air outlet 12 in the duct 15 to detect the temperature of the hot air blown and output it to the controller 5.

The ultraviolet light scattering suppressing member 9 is used as the germicidal lamp cover 7.
Which is a kind of light guide plate attached to the lower end portion of the duct, guides the ultraviolet rays emitted from the germicidal lamp 8 in a direction parallel to the installation surface of the duct 15 and having the same inclination angle as the inclination angle of the duct 15. , Prevents ultraviolet rays from scattering outside this direction. The details of the ultraviolet light scattering suppressing member 9 will be described later. The positional relationship of the germicidal lamp cover 7, the germicidal lamp 8, and the ultraviolet light scattering suppressing member 9 described above as viewed from the side is shown in FIG.
In addition, the positional relationship between the germicidal lamp 8 and the ultraviolet light scattering suppressing member 9 as seen from the bottom surface is as shown in FIG.

A non-contact type hand-detecting sensor 6 such as an infrared sensor is attached to the bottom of the casing 1 between the ultraviolet-scattering suppressing member 9 and the hot air outlet 12. Therefore, it detects the hand that is put out on the lower surface of the ultraviolet light scattering suppressing member 9 and outputs it to the controller 5.

A controller 5 is attached to the space defined by the jacket 14 and the inner wall of the casing 1 (see FIG. 2). When the hand detection signal is output from the hand detection sensor 6, the controller 5 outputs the electric motor 2 based on the output signals from the warm air temperature sensor and the temperature sensor (not shown) for detecting the atmospheric temperature. And the heater 4 are controlled.

FIG. 5 shows a grid-like light guide plate used as the above-mentioned ultraviolet light scattering suppressing member 9.

The lattice-shaped guide plate 16 is made of, for example, a metal material such as aluminum, stainless steel, or iron, or a resin material such as a black fluoro resin, a black phenol resin, or a melanin resin. When a metal is used, melanin baking coating, urethane coating, or acrylic coating (urethane or acrylic modified two-component curing coating) is applied to the surface of the metal so that the discoloration is not noticeable. On the other hand, when a resin is used, it is painted black with urethane or acrylic so that discoloration is not noticeable.

Among the above-mentioned materials, stainless steel and iron plate are the most suitable as the metal material, and phenol resin is the most suitable as the resin material.

By attaching such a grid-like guide plate 16 to the lower end portion of the germicidal lamp cover 7 as the ultraviolet light scattering suppressing member 9, the UV rays emitted from the germicidal lamp 8 are demarcated by the grid-like guide plate 16. The light is emitted in the axial direction of the through spaces through the plurality of through spaces, and scattering outside of the through spaces in the axial direction is suppressed. Therefore, the problem that the ultraviolet rays emitted from the germicidal lamp 8 are incident on the face and eyes of the user due to scattering is suppressed. Further, even if the user mistakenly looks into the inside of the apparatus from the lower surface of the ultraviolet light scattering suppressing member 9, unless the face is thrust into the irradiation range defined by the ultraviolet light scattering suppressing member 9, scattering will occur. Because it is suppressed, UV rays do not reach the eyes and face directly.

FIG. 6 shows a modification of the lattice-shaped guide plate used as the above-mentioned ultraviolet light scattering suppressing member 9.

As shown in FIG. 6, the grid-like guide plate 17 is formed by inclining the lower ends of a plurality of partition plates 18 forming a grid in one direction.
It is intended to further enhance the scattering prevention effect as compared with the case where 6 is used. That is, when the lattice-shaped guide plate 17 is attached as the ultraviolet light scattering suppressing member 9 as shown in FIGS. 1 and 2, the lower end portion of the partition plate 18 is tilted toward the back side of the blower / dryer. Attach. As a result, the ultraviolet rays emitted from the blast dryer are
Since the light is emitted while being inclined to the back side, scattering to the front side where the user is present is further suppressed.

FIG. 7 shows another structural example of the light guide plate used as the ultraviolet light scattering suppressing member 9.

As shown in the figure, the light guide plate 19 has a rectangular frame 21 formed by spirally winding a single strip 20.
It is fixed inside. This guide plate 19 is shown in FIG.
Compared with the grid-like guide plates 16 and 17 shown in FIG. 6, it is easier to assemble, and substantially the same ultraviolet light scattering prevention effect can be achieved.

FIGS. 8 and 9 show modifications applicable to the above-mentioned various light guide plates used as the ultraviolet light scattering suppressing member 9. By making the lower part of the light guide plate into a tapered shape. By limiting the irradiation range of the ultraviolet rays emitted from the germicidal lamp 8 to a desired narrow area, it is possible to further suppress the scattering of the ultraviolet rays to an undesired area. Further, by narrowing the irradiation range of ultraviolet rays in this way, there is also an advantage that a region such as a floor surface which is discolored by the irradiation of ultraviolet rays is also narrowed.

FIG. 10 shows the structure of a blast dryer according to another embodiment of the present invention.

The structure of the casing 1 of this apparatus is shown in FIG.
The tray 22 is attached to the lower end of the casing 1 as in the apparatus shown in FIG. The tray 22 has a shape as shown in FIG. 11, and is configured to surround the front space of the warm air outlet 12 from the left and right side surfaces, the bottom surface, and the back surface, except for the front surface into which the hand is inserted.

The tray 22 receives liquid drops such as water droplets and soap scattered from the user's hand by blowing warm air, and
It prevents the ultraviolet rays emitted from the germicidal lamp 8 from directly shining on the floor surface, etc., and further prevents the head of the user from approaching the germicidal lamp cover 7, especially the opening of the germicidal lamp cover 7 where the ultraviolet rays are directly exposed. The head of the user is prevented from entering the front position of the. Therefore, the space between the warm air outlet 12 and the bottom surface of the tray 22 is large enough to put a hand in, but the head cannot be put in, and the inside of the germicidal lamp cover 7 can be seen from any direction. The tip of the tray 22 projects forward of the hot air outlet 12 so that it cannot be looked into.

As the material forming the tray 22, a metal material such as aluminum, stainless steel, or an iron plate, or a black-system fluororesin or a black-system phenol resin, similar to the ultraviolet-scattering suppressing member 9 described above, is used. A resin material such as melanin resin is used, and the same coating is applied.

According to the above construction, it is possible to almost completely prevent the ultraviolet rays from directly shining on the eyes or face of the user, and it is also possible to prevent the problem that the ultraviolet rays shine directly on the floor surface or the like to change the color.

FIG. 12 shows a blower / dryer equipped with a tray as a modified example of the tray 22 described above.

The upper portion of the tray 23 has a large rectangular opening as indicated by reference numeral 26, and a rectangular opening 27 having a size large enough for both hands to be inserted is formed on the front surface thereof. It is a box type tray. The portion of the tray 23 on the opening 26 side is integrally attached and fixed to the lower end portion of the casing 1 shown in FIGS. 1 and 2. The tray 23 has a function of receiving a liquid substance from a hand, a function of preventing ultraviolet rays from directly irradiating the floor surface, and the like, and prevents the user's face from looking into the opening of the germicidal lamp cover 7 at all. Have a function and. Moreover, since it is a box-type tray, compared to the tray 22 shown in FIGS. 10 and 11, there is an effect that the reflected light of ultraviolet rays on the inner surface of the tray can be further suppressed from leaking to the outside.

If the trays 22 and 23 and the casing 1 are integrally formed and embedded in the wall surface,
It is possible to make it more difficult to look into the opening of the germicidal lamp cover 7.

FIG. 13 shows a structure of a blower / dryer according to still another embodiment of the present invention as seen from the side of the user (front of the apparatus) near the hot air outlet 12.

In this apparatus, a tray 24 having the structure shown in FIGS. 10 and 11, for example, is attached to the lower end of the casing 1, and the casing 1 or the warm air outlet 12 is flexible from the front edge. It is characterized in that the warm screen 25 composed of a plurality of strip-shaped members made of the above material is hung so as to cover the manual insertion port between the tray 24 and the warm air outlet 12.

With such a structure, it is possible to more effectively prevent the ultraviolet rays from leaking to the outside of the manual insertion opening by the heating screen 25 as compared with the case of only the tray.

The above-mentioned ultraviolet light scattering suppressing member, tray and screen can be used alone, respectively.
If used in combination, a better effect can be expected.

The contents described above relate to each embodiment of the present invention and their modifications, and it is needless to say that the present invention is not limited to the above contents.

[0044]

As described above, according to the first aspect of the present invention, the scattering of sterilizing light in a direction other than the desired direction is suppressed, and the head of the user is positioned at the site where the sterilizing light is emitted. It is possible to provide a blast dryer that makes it difficult for the eyes and face to be irradiated with ultraviolet rays even when approaching.

Further, according to the second aspect of the present invention, it is difficult for the user's head to approach the front of the site where the germicidal light is emitted or to look into the site, so that the eyes and the face. It is possible to provide an air-blowing / drying device that is less likely to be irradiated with ultraviolet rays.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a blower / dryer according to an embodiment of the present invention seen from a side surface.

FIG. 2 is a cross-sectional view of a blower / dryer according to an embodiment of the present invention seen from the front.

FIG. 3 is a partial cross-sectional view showing the positional relationship of the germicidal lamp cover, the germicidal lamp, and the ultraviolet scattering suppressing member as viewed from the side surface.

FIG. 4 is a partial bottom view showing the positional relationship between the germicidal lamp and the ultraviolet light scattering suppressing member as seen from the bottom surface.

FIG. 5 is a perspective view showing an example of a lattice-shaped light guide plate used as an ultraviolet light scattering suppressing member.

FIG. 6 is a perspective view showing a partition plate portion of a modification of the lattice-shaped light guide plate.

FIG. 7 is a perspective view showing another example of a light guide plate used as an ultraviolet light scattering suppressing member.

FIG. 8 is a perspective view showing another modification of the light guide plate.

FIG. 9 is a perspective view showing still another modified example of the light guide plate.

FIG. 10 is a cross-sectional view of a blower / dryer according to another embodiment of the present invention as seen from the side.

FIG. 11 is a perspective view showing an example of a tray.

FIG. 12 is a perspective view of a blower / dryer equipped with another tray.

FIG. 13 is a front view showing a configuration around a hot air outlet of a blower / dryer according to still another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 casing 2 electric motor 3 fan 4 heater 5 controller 6 hand detection sensor 7 germicidal lamp cover 8 germicidal lamp 9 ultraviolet light scattering suppression member 12 hot air outlet 15 ducts 16 and 17 grid light guide plate 18 partition plate 19 light guide plate 20 band Plate 22, 23, 24 Tray 25 Goodwill

Claims (9)

[Claims] 1. A blast-drying device for drying and sterilizing a hand projected into the opening by blowing warm air from an opening of the housing and irradiating the sterilizing light. A blow-drying device, characterized in that a scattering suppressing member for suppressing scattering outside a predetermined irradiation direction is provided in a portion close to the opening. 2. The blast drying apparatus according to claim 1, wherein the scattering suppressing member is a lattice-shaped or spiral light guide plate. 3. The air-drying device according to claim 1, wherein the scattering suppressing member inclines the emission direction of the sterilizing light in a direction opposite to the direction in which the user should be positioned. Blower dryer. 4. The blast drying apparatus according to claim 1, wherein the scattering suppressing member narrows the irradiation range of the sterilizing light to a predetermined narrow range. 5. A blast-drying device for drying and sterilizing a hand projected into the opening by blowing hot air from the opening of the housing and irradiating sterilizing light, An air-drying device comprising a tray that surrounds the front space of the adjacent portion from a direction other than the insertion direction. 6. The blower / dryer according to claim 5, wherein the tray has a space such that a hand can be put out in front of the opening and its adjacent portion but a head of a person cannot be put out. An air blower which is provided between the opening and the adjacent portion thereof, and which protrudes toward the side where the user is located from the opening and the adjacent portion so that the opening and the adjacent portion cannot be looked into. Drying device. 7. The blast drying apparatus according to claim 5, further comprising a warm screen made of a flexible material, which is attached to a hand insertion port between the opening and the tray. apparatus. 8. A blast / drying device for drying and sterilizing a hand projected into the opening by blowing warm air from the opening and sterilizing light irradiation to the housing. A blower / dryer having a box-shaped tray for sealing the opening and a portion adjacent to the opening, and the box-shaped tray has an opening on the front surface that is large enough for both hands to be inserted. . 9. The blast drying apparatus according to claim 1, wherein the casing is held in a state of being embedded in a wall surface.