WO2020240782A1 - Dispositif de séchage des mains - Google Patents

Dispositif de séchage des mains Download PDF

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Publication number
WO2020240782A1
WO2020240782A1 PCT/JP2019/021571 JP2019021571W WO2020240782A1 WO 2020240782 A1 WO2020240782 A1 WO 2020240782A1 JP 2019021571 W JP2019021571 W JP 2019021571W WO 2020240782 A1 WO2020240782 A1 WO 2020240782A1
Authority
WO
WIPO (PCT)
Prior art keywords
casing
drying device
hand
hand drying
filter
Prior art date
Application number
PCT/JP2019/021571
Other languages
English (en)
Japanese (ja)
Inventor
章樹 小林
繕弘 深谷
Original Assignee
三菱電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to PCT/JP2019/021571 priority Critical patent/WO2020240782A1/fr
Publication of WO2020240782A1 publication Critical patent/WO2020240782A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K10/00—Body-drying implements; Toilet paper; Holders therefor
    • A47K10/48—Drying by means of hot air

Definitions

  • the present invention relates to a hand drying device for drying wet hands after washing.
  • Patent Document 1 discloses a hand-drying device in which a key mechanism is provided in an operation unit so that an tampering operation can be prevented, and the key mechanism can be removed and operated only when a correct key release operation is performed.
  • the present invention has been made in view of the above, and an object of the present invention is to obtain a hand-drying device that prevents tampering with the operation unit and improves design and maintenance workability.
  • the hand drying device is housed in a casing provided with a nozzle for ejecting an air flow toward a processing space in which a hand can be placed, and in the casing. It is provided with a blower portion that sends out an air flow from the nozzle and an intake port that is provided in a part of the casing and sucks in external air.
  • the hand drying device is equipped with an intake air passage that communicates the intake port and the air blower, a filter network that filters air flowing from the intake port to the intake air passage, and an intake port, and can be attached to and detached from the outer surface of the casing.
  • An operation switch unit that changes the operating state to a position inside the casing that is not exposed to the outside when the filter unit is mounted on the casing and is exposed to the outside when the filter unit is removed from the casing. Is placed.
  • the hand-drying device has the effect of preventing tampering with the operation unit and improving the design and workability of maintenance.
  • FIG. 5 is a cross-sectional view showing a filter unit, an intake air passage, and an operation switch unit in the hand drying device according to the first embodiment of the present invention, and is a sectional view taken along line IV-IV in FIG. Cross-sectional view along the side surface of the hand drying device according to the first embodiment of the present invention.
  • FIG. 1 is a perspective view showing the appearance of the hand drying device 100 according to the first embodiment of the present invention.
  • FIG. 2 is a perspective view showing a state in which the filter unit 15 is removed from the hand drying device 100 according to the first embodiment of the present invention to expose the operation switch unit 17.
  • FIG. 3 is a side view of the hand drying device 100 according to the first embodiment of the present invention.
  • FIG. 4 is a cross-sectional view showing a filter unit 15, an intake air passage 10 and an operation switch unit 17 in the hand drying device 100 according to the first embodiment of the present invention, and is a sectional view taken along line IV-IV in FIG.
  • FIG. 5 is a cross-sectional view taken along the side surface of the hand drying device 100 according to the first embodiment of the present invention.
  • the casing 1 forming the outer shell of the hand drying device 100 has hand insertion openings 2 on the front side and the side surface side of the hand drying device 100 on which a person stands to dry the hands.
  • the hand insertion portion 3 is provided to form a processing space in which the hand can be placed, which is a space following the hand insertion port 2, so that the hand can be inserted and removed.
  • the casing 1 internally houses components such as a high-pressure air flow generator 8 described later and a control circuit (not shown).
  • the hand insertion portion 3 is formed in the lower part of the front surface of the casing 1 as an open sink-shaped recess with the front surface and both side surfaces open so that the hand can be inserted and removed from the front surface side and both side surfaces.
  • Water receiving portions 4 for receiving water droplets blown from the hands are formed on both side surfaces, the bottom side, and the rear side of the hand insertion portion 3. As shown in FIG. 5, the water receiving portion 4 on the bottom side of the hand insertion portion 3 is inclined downward toward the rear of the hand drying device 100, and a drain port 5 is provided at the lower end of the inclination.
  • a drain container 6 for storing water dripping from the drain port 5 is provided so as to be freely removable with respect to the casing 1.
  • the inner surface of the hand-inserted portion 3 is coated with a silicon-based water-repellent coating, a fluorine-based water-repellent coating, a coating of a hydrophilic material such as titanium oxide, or impregnated with an antibacterial agent, and the hand-inserted portion 3 is manually inserted. It is designed to reduce the adhesion of dirt to the inner surface of No. 3 and to reduce the growth of bacteria.
  • a nozzle 12 that blows high-speed air downward toward the hand insertion portion 3 is provided above the hand insertion portion 3. That is, the casing 1 is provided with a nozzle 12 for ejecting air toward a processing space into which a hand can be inserted.
  • a hand detection sensor 13 for detecting the presence or absence of a hand in the hand insertion portion 3 is provided near the back surface side of the nozzle 12.
  • a box-shaped space is formed by the base 7 forming the outer shell of the hand drying device 100 on the back side and the casing 1.
  • a high-pressure air flow generator 8 which is an air flow generator composed of a DC (Direct Current) brushless motor and a turbo fan rotated by the DC brushless motor, and a hand detection sensor 13
  • a control circuit (not shown) that controls the operation of the high-pressure air flow generator 8 in response to the hand detection signal is incorporated.
  • the high-pressure air flow generator 8 is a blower unit housed in the casing 1 to generate an air flow blown out from the nozzle 12 and send the air flow to the nozzle.
  • a commutator motor or an induction motor may be used instead of the DC brushless motor.
  • an intake air passage 10 that communicates the intake port 9 provided on the side surface 1a of the casing 1 above the manual insertion portion 3 with the intake side of the high-pressure air flow generator 8.
  • An exhaust air passage 11 that communicates the exhaust side of the high-pressure air flow generator 8 with the nozzle 12 is provided.
  • a heater 14 is provided in the middle of the exhaust air passage 11 on the upstream side of the nozzle 12 to heat the air sent from the high-pressure air flow generator 8 to warm the air.
  • a filter portion 15 having an intake port 9 formed is arranged on the side surface 1a of the casing 1 located above the manual insertion portion 3.
  • the filter portion 15 is detachable from the side surface 1a of the casing 1.
  • the filter portion 15 is integrally provided with a flat surface portion 15a, an inclined surface 15b, the above-mentioned intake port 9, and a filter net 16.
  • the flat surface portion 15a forms a part of the outer surface of the casing 1 in parallel with the side surface 1a of the casing 1 in a state where the filter portion 15 is attached to the side surface 1a of the casing 1.
  • the inclined surface 15b is inclined toward the center side in the left-right direction from the back side to the front side on a part of the surface of the flat surface portion 15a in a state where the filter portion 15 is attached to the side surface 1a of the casing 1. ing.
  • the filter net 16 is provided so as to project toward the inside of the casing 1 when the filter portion 15 is attached to the side surface 1a of the casing 1.
  • the filter net 16 is inclined toward the center side in the left-right direction from the front side to the back side in a state where the filter portion 15 is attached to the side surface 1a of the casing 1.
  • the filter network 16 filters the air flowing from the intake port 9 to the intake air passage 10.
  • the intake port 9 is formed by a gap provided between the front edge portion of the inclined surface 15b and the back surface of the filter portion 15.
  • the filter net 16 is arranged so that all the air entering the inside of the casing 1 passes through the intake port 9.
  • An operation switch unit 17 for changing the operating state of the hand drying device 100 is arranged on the back side of the casing 1 from which the filter unit 15 has been removed.
  • the operation switch unit 17 includes a power switch (not shown) for turning on / off the energization of the control circuit, and a changeover switch (not shown) for switching the strength of the wind speed of the blown wind from the nozzle 12 and turning on / off the heater 14.
  • the filter portion 15 is attached to the side surface 1a of the casing 1.
  • the operation switch unit 17 is completely concealed by the filter unit 15. Then, the operation switch unit 17 becomes visible from the outside when the filter unit 15 is removed from the side surface 1a of the casing 1. That is, the operation switch unit 17 is not exposed to the outside when the filter unit 15 is mounted on the casing 1, and is exposed to the outside when the filter unit 15 is removed from the casing 1.
  • the operation switch unit 17 is arranged at a position inside the casing 1 that is visible and operable when the filter unit 15 is removed from the side surface 1a of the casing 1.
  • the user who dries the hands with the hand drying device 100 does not notice that the operation switch unit 17 exists because the operation switch unit 17 cannot be seen.
  • the hand drying device 100 is prevented from being subjected to mischievous operations such as the operation switch unit 17 being arbitrarily operated by the user.
  • the operation switch portion 17 is not visible from the outside in the normal state where the filter portion 15 is attached to the side surface 1a of the casing 1, the appearance design is improved and the appearance design is improved. It can be planned.
  • the operation switch unit 17 is arranged above the manual insertion unit 3. That is, the operation switch portion 17 is arranged inside a box-shaped space located above the manual insertion portion 3 in the casing 1. As a result, in the hand drying device 100, the water droplets blown off from the hand do not easily reach the operation switch unit 17, and the adhesion of the water droplets blown off from the hand to the operation switch unit 17 can be reduced.
  • the operation switch portion 17 is provided inside the side surface 1a of the casing 1 located above the manual insertion portion 3 in the casing 1. Therefore, in the hand drying device 100, the position and state of the operation switch unit 17 can be easily visually recognized, and the usability of the operation switch unit 17 for the maintenance company who maintains the hand drying device 100 is improved.
  • the operation switch unit 17 may be provided with a detection unit that detects that the filter unit 15 is attached to the side surface 1a of the casing 1. Then, when the detection unit does not detect that the filter unit 15 is attached to the side surface 1a of the casing 1, that is, when the filter unit 15 is not attached to the side surface 1a of the casing 1, a high-pressure air flow is generated so as not to operate. Control the device 8.
  • the detection unit can be configured by, for example, a limit switch. Further, since the hand drying device 100 is not used when the filter portion 15 is not attached to the side surface 1a of the casing 1, the hand drying device 100 is not used when the filter portion 15 is not attached to the side surface 1a of the casing 1. Dust does not enter the intake air passage 10 by using the device 100.
  • the operation of the hand drying device 100 when the user dries the hands using the hand drying device 100 will be described.
  • the control circuit is energized. It is assumed that the operation switch unit 17 is provided with the above-mentioned detection unit. In this case, the hand drying device 100 cannot be used only by energizing the control circuit.
  • the hand drying device 100 is ready for use by attaching the removed filter portion 15 to the side surface 1a of the casing 1.
  • the hand detection sensor 13 detects the insertion of the hand into the hand insertion portion 3.
  • the hand detection sensor 13 detects the insertion of a hand into the hand insertion unit 3, it transmits a hand detection signal to the control circuit.
  • the control circuit operates the high-pressure air flow generator 8 based on the hand detection signal transmitted from the hand detection sensor 13.
  • the air outside the hand drying device 100 is sucked in from the intake port 9 provided in the filter unit 15.
  • the air sucked from the intake port 9 is sucked into the intake air passage 10 after dust is removed by the filter net 16 provided in the filter unit 15.
  • the air sucked into the intake air passage 10 once rises above the position of the intake port 9 through the intake air passage 10, passes above the high-pressure air flow generator 8, heads toward the rear side, and moves downward. Then, it is sucked from the suction side of the high pressure air flow generator 8.
  • the high-pressure air flow generator 8 converts the air sucked from the intake side into high-pressure air and exhausts it from the exhaust side.
  • the high-pressure air exhausted from the high-pressure air flow generator 8 passes through the exhaust air passage 11, is converted into a high-speed air flow having high kinetic energy from the nozzle 12, and is blown downward into the manual insertion portion 3.
  • the ejection direction of the high-speed air flow blown out from the nozzle 12 is configured to be slightly inclined to the back side with respect to the direction directly below.
  • the high-speed air flow blown out from the nozzle 12 hits the wet hand inserted in the hand insertion portion 3, and the moisture adhering to the hand can be peeled off from the surface of the hand and blown off to dry the hand. Further, by inserting and removing the hand in the hand insertion portion 3, all the water droplets adhering to the entire hand are removed, and the hand is dried.
  • the heater switch is turned on with a heater changeover switch (not shown), the heater 14 is energized and the high-pressure air passing through the exhaust air passage 11 is heated, so that warm air is blown out from the nozzle 12 and is used in winter or the like. Also, the usability is improved.
  • the hand detection sensor 13 detects that the hand has been pulled out from the hand insertion portion 3.
  • the hand detection sensor 13 detects that the hand has been pulled out from the hand insertion unit 3, it transmits a non-detection signal to the control circuit.
  • the control circuit stops the high-pressure air flow generator 8 based on the non-detection signal transmitted from the hand detection sensor 13.
  • the water droplets blown off from the hand flow down toward the drain port 5 at the bottom of the water receiving portion 4 having a forward tilting structure, and are housed in the drain container 6 from the drain port 5.
  • the hand detection sensor 13 may be configured to stop the transmission of the hand detection signal without transmitting the non-detection signal when the hand insertion unit 3 has no hand.
  • the operation switch unit 17 can be operated.
  • the power switch (not shown) is turned off so that the hand drying device 100 does not operate during cleaning.
  • the hand drying device 100 When discarding the water contained in the drain container 6 that collects the water droplets blown off from the hand, pull out the drain container 6 stored in the lower part of the water receiving portion 4 and take it out, and discard the accumulated water. After cleaning is completed, the power switch is turned on, and then the filter portion 15 is attached to the side surface 1a of the casing 1. As a result, the hand drying device 100 is ready for use.
  • the operation switch unit 17 is not exposed to the outside when the filter unit 15 is mounted on the side surface 1a of the casing 1, and the filter unit 15 is not exposed to the outside.
  • the user who dries the hands with the hand drying device 100 does not notice that the operation switch unit 17 exists because the operation switch unit 17 cannot be seen.
  • the hand drying device 100 is prevented from being subjected to mischievous operations such as the operation switch unit 17 being arbitrarily operated by the user.
  • the operation switch portion 17 is not visible from the outside in the normal state where the filter portion 15 is attached to the side surface 1a of the casing 1, the appearance design is improved and the appearance design is improved. It can be planned.
  • the operation switch portion 17 is arranged inside a box-shaped space located above the manual insertion portion 3 in the casing 1.
  • the hand drying device 100 the water droplets blown off from the hand do not easily reach the operation switch unit 17, and the adhesion of the water droplets blown off from the hand to the operation switch unit 17 can be reduced. Therefore, in the hand drying device 100, the water droplets blown off from the hands are less likely to be applied to the operation switch portion 17, so that the operation switch portion 17 is less likely to be soiled, the safety and reliability of the product are improved, and a hygienic state is maintained. Can be done.
  • the filter portion 15 is attached to the side surface 1a of the casing 1 when used. Therefore, the air sucked from the intake port 9 passes through the filter net 16 provided in the filter unit 15 to remove dust. As a result, in the hand drying device 100, it is possible to reduce the accumulation of dust on the operation switch unit 17.
  • the operation switch unit 17 is provided inside the side surface 1a of the casing 1 located above the manual insertion unit 3 in the casing 1, which is a position where the position and state of the operation switch unit 17 can be easily visually recognized.
  • the hand drying device 100 improves the usability of the operation switch unit 17 for the maintenance company who maintains the hand drying device 100, and improves the workability of maintenance. Further, the maintenance work can be performed only by removing the filter portion 15 from the side surface 1a of the casing 1, and the workability of the maintenance is improved.
  • the filter portion 15 provided with the intake port 9 and the filter net 16 is provided on the side surface 1a of the casing 1, and the filter portion 15 can be visually recognized in a state of being removed from the side surface 1a of the casing 1.
  • An example is shown in which the operation switch unit 17 is arranged at an internal position of the operable casing 1, but the positions of the filter unit 15 and the operation switch unit 17 are not limited to this.
  • the filter portion 15 may be provided, for example, at at least one of the outer surfaces of the casing 1, the front surface of the casing 1, the upper surface of the casing 1, and the lower surface of the casing 1.
  • the hand drying device 100 it is possible to obtain a hand drying device in which the operation switch unit 17 is prevented from being tampered with and the design and the workability of the operation switch unit 17 are improved.
  • FIG. 6 is a side view of the hand drying device 200 according to the second embodiment of the present invention.
  • FIG. 7 is a cross-sectional view showing a filter unit 21, an intake air passage 10, and an operation switch unit 17 in the hand drying device 200 according to the second embodiment of the present invention, and is a sectional view taken along line VII-VII in FIG.
  • FIG. 8 is a plan view of the filter unit 21 according to the second embodiment of the present invention.
  • FIG. 9 is a cross-sectional view of the filter unit 21 according to the second embodiment of the present invention, and is a cross-sectional view of VIII-VIII in FIG.
  • the hand drying device 200 is different from the hand drying device 100 according to the first embodiment described above in that the filter unit 21 is mounted on the side surface 1a of the casing 1 instead of the filter unit 15.
  • the filter portion 21 is removable from the side surface 1a of the casing 1.
  • the filter unit 21 has a structure in which a partition wall 18 is added to the filter unit 15. That is, the filter portion 21 includes a flat surface portion 15a, an inclined surface 15b, an intake port 9, a filter net 16, and a partition wall 18.
  • the partition wall 18 spatially blocks the operation switch portion 17 and the intake air passage 10 in a state where the filter portion 21 is attached to the side surface 1a of the casing 1. That is, the partition wall 18 isolates the operation switch portion 17 from the intake air passage 10 in a state where the filter portion 21 is mounted on the side surface 1a of the casing 1.
  • the hand drying device 200 according to the second embodiment has the same effect as the hand drying device 100 according to the first embodiment described above.
  • the operation switch unit 17 since the water droplets blown from the hand during use do not come into contact with the operation switch unit 17, the operation switch unit 17 is not contaminated by the water droplets blown from the hand, and the safety and reliability of the product are improved. It can be improved and kept hygienic.
  • the configuration shown in the above-described embodiment shows an example of the content of the present invention, can be combined with another known technique, and is one of the configurations without departing from the gist of the present invention. It is also possible to omit or change the part.

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Domestic Plumbing Installations (AREA)

Abstract

Un dispositif de séchage des mains (100) est pourvu d'un boîtier (1) sur lequel est disposée une buse pour souffler un jet d'air vers un espace de traitement dans lequel une main peut être placée, d'une unité de soufflage qui est logée dans le boîtier (1) et envoie le flux d'air depuis la buse, et d'un orifice d'admission d'air (9) qui est disposé sur une partie du boîtier (1) et prend l'air externe. Le dispositif de séchage des mains (100) est pourvu d'un passage d'air d'admission créant une communication entre l'orifice d'admission d'air (9) et la section de soufflage, et d'une partie filtre (15) qui est pourvue de l'orifice d'admission d'air (9) et d'une maille de filtre pour filtrer l'air s'écoulant à travers le passage d'air d'admission à partir de l'orifice d'admission d'air (9), la partie filtre (15) étant disposé de manière à pouvoir être fixée/détachée sur/de la surface externe du boîtier (1) et constituant une partie de la surface externe du boîtier (1). Une unité de commutation d'opération (17) est disposée à un emplacement qui est à l'intérieur du boîtier (1) et qui n'est pas exposée à l'extérieur lorsque la partie filtre (15) est fixée au boîtier (1) et est exposée à l'extérieur lorsque la partie filtre (15) est détachée du boîtier (1).
PCT/JP2019/021571 2019-05-30 2019-05-30 Dispositif de séchage des mains WO2020240782A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2019/021571 WO2020240782A1 (fr) 2019-05-30 2019-05-30 Dispositif de séchage des mains

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2019/021571 WO2020240782A1 (fr) 2019-05-30 2019-05-30 Dispositif de séchage des mains

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Publication Number Publication Date
WO2020240782A1 true WO2020240782A1 (fr) 2020-12-03

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009039279A (ja) * 2007-08-08 2009-02-26 Mitsubishi Electric Corp 手乾燥装置
WO2018220689A1 (fr) * 2017-05-29 2018-12-06 三菱電機株式会社 Sèche-mains

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009039279A (ja) * 2007-08-08 2009-02-26 Mitsubishi Electric Corp 手乾燥装置
WO2018220689A1 (fr) * 2017-05-29 2018-12-06 三菱電機株式会社 Sèche-mains

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