WO2013021540A1 - 手乾燥装置 - Google Patents
手乾燥装置 Download PDFInfo
- Publication number
- WO2013021540A1 WO2013021540A1 PCT/JP2012/004193 JP2012004193W WO2013021540A1 WO 2013021540 A1 WO2013021540 A1 WO 2013021540A1 JP 2012004193 W JP2012004193 W JP 2012004193W WO 2013021540 A1 WO2013021540 A1 WO 2013021540A1
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- WO
- WIPO (PCT)
- Prior art keywords
- hand
- nozzle
- nozzles
- drying chamber
- air
- Prior art date
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Classifications
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- 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 dryer.
- a heating device for increasing the air temperature of the suction airflow is added or the blown air flow velocity is increased.
- a backflow prevention nozzle that suppresses the splashing of water droplets by blowing back was added.
- FIG. 6 is a side view of the hand dryer of the prior art example 1.
- the hand drying device includes a drying chamber 103, a nozzle 104, and a heating device 106.
- the drying chamber 103 the hand 102 is inserted and removed from the insertion port 101 that opens toward the outside.
- the nozzle 104 delivers air toward the drying chamber 103.
- the heating device 106 is disposed on the windward side of the suction airflow 105 and raises the temperature of the suction airflow 105.
- the suction airflow 105 heated by the heating device 106 passes through the electric blower 107, and the hot nozzle airflow 108 collides with the hand 102 to dry the hand 102.
- the drying chamber 103 has side openings 109 on the left and right side surfaces in addition to the insertion port 101. Then, the hot nozzle air flow 108 flows out as the side outflow air flow 110.
- the hand dryer of Conventional Example 1 is suitable for generating a high-temperature nozzle air flow 108 without increasing the output of the electric blower 107.
- FIG. 7 is a side view of the hand dryer of the prior art example 2.
- the hand dryer includes a drying chamber 203, a row of drying nozzles 204, and a backflow prevention nozzle 206.
- the drying chamber 203 the hand 202 is inserted and removed from the insertion port 201 that opens outward.
- the drying nozzle 204 sends air toward the drying chamber 203.
- the backflow prevention nozzle 206 provided on the upper side (back side of the hand) of the hand 202 blocks the blown-back airflow 205 generated when the airflow generated from the drying nozzle 204 collides with the hand 202.
- the backflow prevention nozzle 206 blocks the water droplets 207 blown back from the hand 202, and therefore, a small number of nozzles are located immediately above the drying nozzle 204 and in the vicinity of the front of the hand 202.
- the drying chamber 203 has side openings 208 on the left and right side surfaces in addition to the insertion port 201. Therefore, the rebound water droplet 207 flows out from the side opening 208 together with the side outflow air current 209.
- the hand drying device of Conventional Example 2 is suitable for the case where the blown airflow 205 toward the upper part of the hand 202 becomes strong and the waterdrop 207 reappears on the hand 202.
- the conventional hand drying apparatus has a problem that a single row of nozzles collects water droplets on the fingertips due to gravity and wind pressure during hand insertion / removal work, resulting in a longer drying time.
- JP-A-10-75915 Japanese Patent Laid-Open No. 7-136078
- the hand drying device of the present invention includes a drying chamber in which a hand is inserted and removed from an insertion port, a nozzle for sending air toward the drying chamber, and an electric blower for sending air to the nozzle.
- the nozzle moves from the center of the insertion port, which is the center of the insertion port, to the center of the drying chamber, which is the center of the bottom surface of the drying chamber, so that the entire hand is simultaneously exposed to air.
- a plurality of rows are arranged.
- FIG. 1 is a side perspective view of a hand dryer according to an embodiment of the present invention.
- FIG. 2 is a side perspective view showing a use state in which a hand is inserted into the hand dryer.
- FIG. 3 is a simulation diagram showing an air flow in a state where a hand is inserted into the hand dryer.
- FIG. 4 is a plan view seen from the insertion port of the different hand drying apparatus.
- FIG. 5 is a side perspective view of a different hand dryer.
- FIG. 6 is a side view of the hand dryer of Conventional Example 1.
- FIG. 7 is a side view of the hand drying apparatus of Conventional Example 2.
- FIG. 1 is a side perspective view of a hand dryer according to an embodiment of the present invention.
- the hand dryer includes a drying chamber 2, a nozzle 3, and an electric blower 4.
- the hand 30 is inserted and removed from the insertion port 1 that opens toward the outside.
- the nozzle 3 sends out air 6 toward the drying chamber 2.
- the electric blower 4 sends air 6 to the nozzle 3 and sends high-pressure air 6 from the nozzle 3.
- the hand dryer is attached to the wall surface 51 of the washroom.
- the user stands on the user side 52, which is the front side of the hand dryer, and inserts the hand 30.
- the drying chamber 2 is provided with an insertion port 1 for a hand 30 at the top, and the hand 30 is inserted downward.
- the nozzles 3 are opposed to the opposing surfaces in the drying chamber 2, that is, the wall-side surface 2 a that is the inner wall surface on the wall surface 51 side, and the user-side surface 2 b that is the inner wall surface on the user side 52. Is provided.
- the nozzles 3 are provided in a plurality of rows 8 toward the bottom surface 5 side below the drying chamber 2.
- the hand 30 is inserted from the insertion port 1
- the hand 30 is inserted with the palm in front. That is, the user side 52 is provided with a palm-side upper nozzle 3a and a palm-side lower nozzle 3b.
- a back-side upper nozzle 3c and a back-side lower nozzle 3d are provided on the wall surface 51 side.
- the palm-side upper nozzle 3a and the back-side upper nozzle 3c face each other
- the palm-side lower nozzle 3b and the back-side lower nozzle 3d face each other. Then, air 6 blows out from each nozzle 3.
- the nozzle 3 is formed on the bottom surface 5 of the drying chamber 2 from the insertion port center 1a which is the center of the insertion port 1 so that when the hand 30 is inserted into the drying chamber 2, the air 6 hits the entire hand 30 simultaneously.
- a plurality of rows 8 are arranged with respect to the drying chamber center line 7 toward the center of the bottom surface 5a.
- the outline of the hand dryer is covered with a front panel 20 and a rear case 21.
- the drying chamber 2 in which the nozzle 3 is arranged is located in a part of the outline of the hand dryer.
- the suction air 22 is sucked into the electric blower 4 through the filter 23 and the suction air passage 24, and blown out from the nozzle 3 through the front air chamber 26 and the rear air chamber 27 from the discharge air passage 25.
- a human sensor 28 at the top of the drying chamber 2 controls the on / off of the electric blower 4.
- FIG. 2 is a side perspective view showing a use state in which a hand is inserted into the hand drying device according to the embodiment of the present invention.
- the hand 30 is inserted from the insertion port 1 toward the drying chamber 2.
- the human sensor 28 provided in the vicinity of the insertion port 1 reacts with the hand 30 to operate the electric blower 4, and the high-speed air 6 is blown out from the nozzle 3.
- the palm-side airflow vector 10 by the palm-side upper nozzle 3a and the palm-side lower nozzle 3b is opposed to the palm-side airflow vector 11 by the back-side upper nozzle 3c and the back-side lower nozzle 3d.
- the water 30 is drained by inserting and removing the hand 30 in a direction substantially perpendicular to the direction in which each vector faces.
- the water droplets 33 of the entire hand are likely to gather at the fingertip due to gravity.
- the hand 30 is inserted up to the bottom surface 5
- the water droplet 34 at the fingertip is removed by the air 6 blown out from the palm-side lower nozzle 3b and the back-side lower nozzle 3d.
- the remaining water droplets 34 of the fingertips and the water droplets 33 of the entire hand that have not been completely removed are removed by the air 6 blown out from the palm-side upper nozzle 3a and the back-side upper nozzle 3c when the hand 30 is extracted. Dried.
- FIG. 3 is a simulation diagram showing an air flow in a state where a hand is inserted into the hand drying apparatus according to the embodiment of the present invention.
- the hand 30 is located between the palm-side airflow vector 10 and the back-side airflow vector 11 of the hand.
- Air 6 collides with the hand 30 at each position of the palm-side upper nozzle 3a and the back-side upper nozzle 3c, and the palm-side lower nozzle 3b and the back-side lower nozzle 3d.
- the airflow simulation conditions are as follows: nozzle diameter: ⁇ 3.4 mm, total nozzle number: 48 (36 upper nozzles, 12 lower nozzles), nozzle immediate pressure: about 7 kPa, drying chamber width: about 250 mm, drying chamber Depth to bottom (under nozzle): about 170 mm.
- water droplets from the middle portion to the fingertip portion of the hand 30 are the nozzles 3 in the first row (lower side on the palm side). It is removed by the nozzle 3b and the lower nozzle 3d) on the back side of the hand. The remaining water droplets are removed by the nozzles 3 (the palm-side upper nozzle 3a and the palm-side lower nozzle 3b) in the second and subsequent rows. Fine water droplets are evaporated and dried. That is, the air 6 from the nozzle 3 collides with the hand 30 twice by inserting and removing the hand 30 once, so that the drying time is shortened and the time for removing and inserting the hand 30 can be reduced.
- the air 6 hits the entire hand 30 simultaneously by the two rows of nozzles 3, so that the drying time is shortened.
- the positions of the palm side lower nozzle 3b and the back-side lower nozzle 3d in the drying chamber 2 are suitable from the base of the finger of the hand 30 to the lower side. Therefore, the distance between the palm-side upper nozzle 3 a and the palm-side lower nozzle 3 b with respect to the palm-side lower nozzle 3 b and the back-side lower nozzle 3 d is preferably 1/3 or more of the length of the hand 30. This is about 50 mm to 200 mm considering the size of a general hand 30.
- the hand 30 can be dried in a short time.
- the nozzles 3 have a two-row structure of an upper stage and a lower stage.
- the nozzles 3 may be configured in a plurality of rows of 8 or more.
- FIG. 4 is a plan view seen from an insertion port of a different hand dryer according to the embodiment of the present invention. As shown in FIG. 4, the total opening area of the palm-side upper nozzle 3a and the palm-side lower nozzle 3b is larger than the total opening area of the back-side upper nozzle 3c and the back-side nozzle 3d.
- the nozzle 3 is provided on the user-side surface 2b close to the user of the drying chamber 2 and the wall-side surface 2a opposite to the user-side surface 2b.
- the total opening area of the nozzles 3 on the user-side surface 2b is larger than the total opening area of the nozzles 3 on the wall-side surface 2a.
- the palm side is rubbed and washed with both hands, so there is much adhesion of water, there is no pore and the water repellency is inferior to the back side of the hand. Therefore, according to the hand drying device of FIG. 4, the air flow on the palm side with much water adhesion increases and is jetted. In this way, the air 6 blows out according to the characteristics of the palm and the back of the hand, and the drying time is shortened.
- the arrangement range of the nozzles 3 is reduced. That is, the lower nozzle arrangement range 43 is smaller than the upper nozzle arrangement range 42. That is, the arrangement range of the nozzles 3 in each of the plurality of rows 8 is reduced as it goes from the insertion port 1 toward the bottom surface 5.
- the portion through which the middle finger of the right hand passes is designated as the central axis A44, and the portion through which the middle finger of the left hand passes is designated as the central axis B45.
- the upper nozzle 3e and the lower nozzle 3f are arranged so that the horizontal width 46 of the upper nozzle and the horizontal width 47 of the lower nozzle are substantially symmetrical with respect to the central axis A44 and the central axis B45, respectively.
- the nozzles 3 in each of the plurality of rows 8 are arranged symmetrically with respect to the surface center line 9 from the insertion port 1 to the bottom surface 5 that bisects the surface 2b on the user side and the surface 2a on the wall surface side, Further, they are arranged symmetrically on both sides of the plane center line. This corresponds to the palm having a substantially symmetrical shape about the middle finger.
- the nozzles 3 are concentrated and arranged only in necessary portions according to the width of the left and right hands 30. Therefore, the air 6 from the nozzle 3 is applied only to the part through which the hand 30 passes.
- the opening of the nozzle 3 is viewed from the insertion port 1, the opening of each nozzle 3 arranged on the same surface side of the drying chamber 2 is not arranged on the same straight line in the direction of inserting and removing the hand. That is, the upper nozzle opening center axis 49 is not positioned on the lower nozzle opening center axis 48. That is, among the nozzles 3, the distance between the upper nozzle opening center axis 49 parallel to the surface center line 9 of each upper nozzle 3 e arranged in the upper row 8 a and the surface center line 9 is set as the upper nozzle distances 49 a, 49 b, 49 c, 49d, 49e, 49f.
- the distance between the lower nozzle opening center axis 48 parallel to the surface center line 9 of each lower nozzle 3 f arranged in the lower row 8 b and the surface center line 9 is expressed by lower nozzle distances 48 a, 48 b, 48 c.
- the upper nozzle distances 49a, 49b, 49c, 49d, 49e, and 49f are all different from the lower nozzle distances 48a, 48b, and 48c.
- the hand drying apparatus according to the embodiment of the present invention does not cause drying unevenness and can dry hands in a short time.
- the hand drying apparatus according to the embodiment of the present invention suppresses the total opening area of the nozzles 3 and does not reduce the wind pressure from the nozzles 3. can do.
- FIG. 5 is a side perspective view of still another hand drying apparatus according to the embodiment of the present invention.
- the palm-side airflow vector 10 and the back-side airflow vector 11 are substantially coplanar. That is, the airflow blown from the palm-side upper nozzle 3a and the airflow blown from the back-side upper nozzle 3c collide from the front. Similarly, the airflow blown from the palm-side lower nozzle 3b and the airflow blown from the back-side lower nozzle 3d collide from the front.
- the palm-side air flow vector 10 which is the air flow vector of the upper nozzle 3e and the lower nozzle 3f provided on the user-side surface 2b, and the upper nozzle 3e and the lower nozzle provided on the wall-side surface 2a.
- the back side airflow vector 11 of the hand which is the airflow vector of the nozzle 3f, is opposed by 180 degrees.
- the air 6 coming out of the nozzle 3 facing the drying chamber 2 collides with the central portion of the drying chamber 2. Therefore, the air 6 is uniformly hit from both sides at substantially the same height on the palm side and the back side of the hand, and the water droplets adhering to the palm side and the back side of the hand are peeled off from the hand 30 while preventing the water droplets from flowing around to the opposite side of the hand 30. Further, the air 6 that has not collided with the hand 30 collides oppositely and the momentum is reduced. As a result, beat noise caused by turbulent flow that occurs when colliding with the wall surface of the drying chamber 2 on the side opposite to the blown-out side is prevented.
- the hand drying device having such a configuration, hands can be dried in a short time, and noise can be reduced.
- the hand drying device of the present invention can be used for equipment drying equipment using a nozzle structure in addition to the purpose of hand drying. That is, the hand drying apparatus of the present invention can be applied to industrial drying applications for drying an object in a short time.
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- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Drying Of Solid Materials (AREA)
- Bidet-Like Cleaning Device And Other Flush Toilet Accessories (AREA)
Abstract
Description
従来の手乾燥装置は、吸込気流の風上側に空気温度を上昇させる加熱装置が取り付けられていた(例えば、特許文献1参照)。以下、従来例1の手乾燥装置の側面図である図6を参照しながら説明する。
また従来の手乾燥装置としては、1列の乾燥用ノズルの直上に、濡れた手を抜き差しする時の吹き返り水滴の飛び出しを抑制する逆流防止ノズルが配置されていた(例えば、特許文献2参照)。以下、従来例2の手乾燥装置の側面図である図7を参照しながら説明する。
図1は、本発明の実施の形態の手乾燥装置の側面透視図である。図1に示すように手乾燥装置は、乾燥室2と、ノズル3と、電動送風機4とを備えている。乾燥室2では、外部に向かって開口した挿入口1から手30が抜き差しされる。ノズル3は、乾燥室2に向けて空気6を送出する。電動送風機4は、ノズル3に空気6を送出し、ノズル3から高圧の空気6を送出する。手乾燥装置は、洗面所の壁面51などに取り付けられる。手乾燥装置の正面側である使用者側52に使用者が立ち、手30を挿入する。
1a 挿入口中心
2 乾燥室
2a 壁面側の面
2b 使用者側の面
3 ノズル
3a 手の平側上段ノズル
3b 手の平側下段ノズル
3c 手の甲側上段ノズル
3d 手の甲側下段ノズル
3e 上段ノズル
3f 下段ノズル
4 電動送風機
5 (乾燥室の)底面
5a 底面中心
6 空気
7 乾燥室中心線
8 複数列
8a 上段列
8b 下段列
9 面中心線
10 手の平側空気流ベクトル
11 手の甲側空気流ベクトル
20 フロントパネル
21 リアケース
22 吸込空気
23 フィルター
24 吸込風路
25 吐出風路
26 正面側空気室
27 背面側空気室
28 人感センサー
30 手
33 手全体の水滴
34 指先の水滴
42 上段ノズル配置範囲
43 下段ノズル配置範囲
44 中心軸A
45 中心軸B
46 上段ノズルの横幅
47 下段ノズルの横幅
48 下段ノズル開口中心軸
48a,48b,48c 下段ノズル距離
49 上段ノズル開口中心軸
49a,49b,49c,49d,49e,49f 上段ノズル距離
51 壁面
52 使用者側
Claims (6)
- 挿入口から手を抜き差しする乾燥室と、
前記乾燥室に向けて空気を送出するノズルと、
前記ノズルに前記空気を送出する電動送風機とを備えた手乾燥装置であって、
前記ノズルは前記手を前記乾燥室に挿入したときに前記手の全体に同時に前記空気が当たるように前記挿入口の中心である挿入口中心から前記乾燥室の底面の中心である底面中心に向かう乾燥室中心線に対し複数列配置されたことを特徴とする手乾燥装置。 - 前記ノズルは前記乾燥室の使用者に近い使用者側の面と前記使用者側の面に対向する壁面側の面とに設けられ、前記使用者側の面の前記ノズルの開口面積の合計が前記壁面側の面の前記ノズルの開口面積の合計よりも大きいことを特徴とする請求項1に記載の手乾燥装置。
- 前記複数列のそれぞれの列における前記ノズルは、前記挿入口から前記底面に向かうにしたがい、配置範囲が小さくなることを特徴とする請求項1に記載の手乾燥装置。
- 前記複数列のそれぞれの列における前記ノズルは前記使用者側の面と前記壁面側の面とを2分する前記挿入口から前記底面へ向かう面中心線に対して対称に配置され、さらに前記面中心線の両側においても対称に配置されたことを特徴とする請求項2に記載の手乾燥装置。
- 前記複数列は上段列と下段列とであり、前記ノズルのうち前記上段列に配置されたそれぞれの上段ノズルの前記面中心線に平行な上段ノズル開口中心軸と前記面中心線との上段ノズル距離と、前記ノズルのうち前記下段列に配置されたそれぞれの下段ノズルの前記面中心線に平行な下段ノズル開口中心軸と前記面中心線との下段ノズル距離とが全て異なることを特徴とする請求項4に記載の手乾燥装置。
- 前記使用者側の面に設けたそれぞれの前記上段ノズルおよび前記下段ノズルの空気流ベクトルと、前記壁面側の面に設けたそれぞれの前記上段ノズルおよび前記下段ノズルの空気流ベクトルとが180度ずれて相対することを特徴とする請求項5に記載の手乾燥装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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KR1020137032964A KR20140045390A (ko) | 2011-08-11 | 2012-06-28 | 손 건조 장치 |
CN201280039031.7A CN103732113B (zh) | 2011-08-11 | 2012-06-28 | 手烘干装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2011-175823 | 2011-08-11 | ||
JP2011175823A JP6028210B2 (ja) | 2011-08-11 | 2011-08-11 | 手乾燥装置 |
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WO2013021540A1 true WO2013021540A1 (ja) | 2013-02-14 |
Family
ID=47668082
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PCT/JP2012/004193 WO2013021540A1 (ja) | 2011-08-11 | 2012-06-28 | 手乾燥装置 |
Country Status (4)
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JP (1) | JP6028210B2 (ja) |
KR (1) | KR20140045390A (ja) |
CN (1) | CN103732113B (ja) |
WO (1) | WO2013021540A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108852118A (zh) * | 2017-05-08 | 2018-11-23 | 戴森技术有限公司 | 干手机 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000157448A (ja) * | 1998-11-27 | 2000-06-13 | Matsushita Seiko Co Ltd | 吹出ノズル |
JP2005177130A (ja) * | 2003-12-19 | 2005-07-07 | Matsushita Electric Ind Co Ltd | 手乾燥装置 |
WO2007020699A1 (ja) * | 2005-08-18 | 2007-02-22 | Mitsubishi Denki Kabushiki Kaisha | 手乾燥装置 |
WO2008001436A1 (fr) * | 2006-06-28 | 2008-01-03 | Mitsubishi Electric Corporation | Sèche-mains |
JP2011087837A (ja) * | 2009-10-26 | 2011-05-06 | Panasonic Corp | 手乾燥装置 |
-
2011
- 2011-08-11 JP JP2011175823A patent/JP6028210B2/ja active Active
-
2012
- 2012-06-28 KR KR1020137032964A patent/KR20140045390A/ko not_active Application Discontinuation
- 2012-06-28 CN CN201280039031.7A patent/CN103732113B/zh active Active
- 2012-06-28 WO PCT/JP2012/004193 patent/WO2013021540A1/ja active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000157448A (ja) * | 1998-11-27 | 2000-06-13 | Matsushita Seiko Co Ltd | 吹出ノズル |
JP2005177130A (ja) * | 2003-12-19 | 2005-07-07 | Matsushita Electric Ind Co Ltd | 手乾燥装置 |
WO2007020699A1 (ja) * | 2005-08-18 | 2007-02-22 | Mitsubishi Denki Kabushiki Kaisha | 手乾燥装置 |
WO2008001436A1 (fr) * | 2006-06-28 | 2008-01-03 | Mitsubishi Electric Corporation | Sèche-mains |
JP2011087837A (ja) * | 2009-10-26 | 2011-05-06 | Panasonic Corp | 手乾燥装置 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108852118A (zh) * | 2017-05-08 | 2018-11-23 | 戴森技术有限公司 | 干手机 |
Also Published As
Publication number | Publication date |
---|---|
JP2013039143A (ja) | 2013-02-28 |
CN103732113B (zh) | 2016-02-17 |
CN103732113A (zh) | 2014-04-16 |
JP6028210B2 (ja) | 2016-11-16 |
KR20140045390A (ko) | 2014-04-16 |
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