JP4019198B2 - Hand dryer - Google Patents

Description

  The present invention relates to a hand dryer installed in a toilet or a washroom of a public facility such as a railway station, a hotel, a movie theater, or a large commercial facility.

  In recent years, toilets and washrooms in public facilities such as railway stations, hotels, movie theaters and large commercial facilities are dried by the air flow that is automatically blown out when wet hands after washing are put into place. There are often hand dryers that can be used. Conventional hand dryers are attached to the walls of toilets and washrooms. When a wet hand is inserted into the drying chamber from the opening provided on the upper surface, the built-in electric blower automatically turns on and air enters the drying chamber. A typical example is one in which a flow is blown out and the air is dried while blowing off water adhering to the hand (see, for example, Patent Documents 1 to 3).

Japanese Patent No. 3094687 JP 2002-34844 A JP 2001-104211 A

  The hand drying device described in Patent Document 1 is open not only on the top surface of the drying chamber, but also on both the left and right side surfaces, so that it has an open feeling and is excellent in that wet hands can be inserted from the left and right side surfaces. ing. However, when the wet hand is being dried in the drying chamber, water droplets blown from the hand by the air flow may be scattered from the open portions on the left and right side surfaces to the outside, and the surroundings of the apparatus may be soiled.

  Since only the upper surface of the drying chamber is open in the hand drying device described in Patent Document 2, water droplets blown from the hand inserted into the drying chamber are not directly scattered from the side surface. However, the air blown out from the electric blower into the drying chamber circulates in the drying chamber and then blows back and blows out from the opening on the top surface. There are things to do. Moreover, when the water droplet blown off from the hand accompanies this blow-back, the water droplet may be scattered around the apparatus. Therefore, if the flow rate of air blown into the drying chamber is reduced in order to suppress such blow-back, another problem that the drying performance deteriorates occurs.

  On the other hand, the hand drying device described in Patent Document 3 is common to the hand drying device described in Patent Document 2 in that only the upper surface of the drying chamber is open, but the air intake of the electric blower is in the drying chamber. As a result, a part of the air flow blown into the drying chamber is sucked from the air intake port. As a result, the above-mentioned blow-back is reduced and scattering of water droplets is also suppressed.

  However, since air sucked from the air intake port is accompanied by moisture blown from the hand, the moisture may enter the electric blower and other air flow paths and cause troubles such as deterioration of the blower. is there.

The problem to be solved by the present invention is to provide a hand-drying device that is excellent in drying performance with less unpleasant blow-back from the opening and scattering of water droplets around the device.

The invention according to claim 1 is a hand drying device that blows air on a user's hand to dry, a hand drying chamber having an opening for inserting a hand on a front surface, an upper surface portion, a side surface of the hand drying chamber A main body casing constituting a portion and a bottom surface portion, an electric blower built in the main body casing, and an air flow supplied from the electric blower from the upper surface portion toward the hand inserted into the hand drying chamber A nozzle that blows out, and a vent that is formed on the side surface and exhausts the air flow in the hand-drying chamber to the outside, and is provided with a water-blocking unit that prevents passage of water droplets in the vent, and the water-blocking unit Is a plurality of plate-like bodies arranged with a gap so as to rise upward from the inside to the outside of the vent.

By setting it as such a structure, a user inserts a hand in the hand drying chamber from the opening part of a front, and dries a hand with the airflow which blows off with a nozzle from an upper surface part. Since the air flow blown out from the nozzle into the hand drying chamber is discharged to the outside from the vent formed in the side surface portion, blow-back is reduced.
  At this time, the water droplets blown from the wet hands during drying collide with any of the plurality of plate-like bodies serving as the water shielding means and are prevented from passing, and only the air flow is discharged from the gaps of the plate-like bodies. The The air flow blown out from the upper surface portion into the hand drying chamber by the nozzle descends against the hand inserted into the hand drying chamber, and comes into contact with the bottom surface portion of the hand drying chamber and then diverges, and then contacts the side portions. However, if the plate-like body is arranged so as to have an upward gradient from the inside of the vent to the outside, the upward flow is guided obliquely upward along the gradient of each plate-like body and smoothly Discharged to the outside. For this reason, the outstanding water impermeability and air permeability can be obtained, and the drying function can be improved.

It is possible to prevent unpleasant blow-back from the opening of the hand-drying chamber and to prevent water droplets from being scattered.

With reference to FIG. 1, the hand dryer 40 which is embodiment of this invention is demonstrated. FIG. 1 is a schematic perspective view showing a hand drying apparatus according to an embodiment of the present invention.

The hand drying device 40 includes a main body casing 42, an opening 43 on the front surface of the main body casing 42, and a hand drying chamber 44 for inserting a hand through the opening 43 to dry, and above the hand drying chamber 44. Has a built-in electric blower 53. A nozzle 45 for blowing an air flow supplied from the electric blower 53 into the hand drying chamber 44 and spraying it on the hand inserted into the hand drying chamber 44 is disposed on the ceiling portion of the hand drying chamber 44. . A sensor 52 that detects a hand inserted into the hand drying chamber 44 through the opening 43 is disposed above the hand drying chamber 44. A water receiver 48 and a drain port 55 are provided at the bottom of the hand drying chamber 44, and a water recovery container 51 is disposed below the water receiver 48.

  When a hand is inserted into the hand drying chamber 44 from the opening 43, the sensor 52 detects it and the electric blower 53 is automatically activated to blow an air flow toward the hand in the hand drying chamber 44, The hand is dried by blowing or evaporating the water on the surface of the hand. When the hand is removed from the hand drying chamber 44, the sensor 52 detects that there is no hand in the hand drying chamber 44 and automatically stops the electric blower 53. The water blown off from the hand is received by the water receiver 48 and flows into the collection container 51 through the drain port 55.

  Side members 47 are arranged on the left and right side surfaces of the hand drying chamber 44, respectively, and these side members 47 are provided with a vent 49 and a louver 46 as a water shielding means. The air vent 49 has a function of discharging the air in the drying chamber 44 so that the air flow blown out from the nozzle 45 does not blow back from the opening 43. The louver 46, which is also a water shielding means, blocks the water droplet scattering path so that the water droplets blown off in the hand drying chamber 44 do not directly scatter from the vent hole 49. The louver 46 is constituted by a plurality of plate-like bodies 46 a arranged with a gap so as to straddle the vent hole 49.

  With such a configuration, it is possible not only to eliminate the splashing of water droplets to the side of the hand-drying device 40 during the drying operation, but also to blow out an air flow from the nozzle 45 to obtain sufficient drying performance. However, unpleasant blowback does not occur from the opening 43.

  The hand dryer of the present invention can be widely used by installing it in a public facility such as a railway station, a hotel, a movie theater, or a large commercial facility.

It is a perspective view which shows the hand dryer which is embodiment of this invention.

Explanation of symbols

40 Hand dryer
42 Body casing
43 opening
44 Hand drying room
45 nozzles
46 louvers
46a Plate
47 Side members
48 Water receiver
49 Vent
53 Electric blower
55 Drain outlet

Claims (1)

In a hand dryer that blows air on the user's hand to dry it,
A hand drying chamber having an opening for inserting a hand in the front;
A main body casing constituting an upper surface portion, a side surface portion and a bottom surface portion of the hand drying chamber;
An electric blower built in the main body casing;
A nozzle that blows out the air flow supplied from the electric blower from the upper surface portion toward the hand inserted into the hand drying chamber;
A vent hole formed on the side surface for discharging the air flow in the hand drying chamber to the outside,
Water shielding means for preventing the passage of water droplets is provided in the vent,
The hand-drying device , wherein the water shielding means is a plurality of plate-like bodies arranged with a gap so as to rise upward from the inside to the outside of the vent .

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