JP3972333B2 - Hand dryer - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a hand-drying device, and more particularly to a hand-drying device that dries wet hands after washing hygienically and quickly and prevents the user and the surroundings from being contaminated with dirty water.
[0002]
[Prior art]
In the conventional hand dryer, in order to dry wet hands after washing hygienically and quickly, the air suction passage to the high-pressure airflow generator is placed on the front side above the processing space (hand insertion part). There was what was constituted (for example, refer to patent documents 1).
[0003]
[Patent Document 1]
JP 2002-119439 A (page 5, FIG. 1, page 6, FIG. 2)
[0004]
[Problems to be solved by the invention]
In a conventional hand drying device (see, for example, Patent Document 1), the opening of the hand insertion portion is on the front surface of the main body, and water droplets inserted by the high-pressure air ejected from the air ejection nozzle causes the inner wall of the hand insertion portion to After adhering to the substrate, it is further moved to the outer periphery of the front surface of the main body and surrounding walls by high-pressure air. For this reason, there has been a problem in that the outer periphery of the front surface of the hand dryer and the surrounding walls are soiled with water droplets containing hand dirt. Further, there is a problem that the aesthetic appearance is impaired by drying of the dirty water droplets.
[0005]
Moreover, in the conventional hand dryer (for example, refer patent document 1), high pressure air flows into the tank of the lower part of a manual insertion part from the water conveyance hole of the bottom face (water receiving part) of a manual insertion part. Since this tank is detachable from the main body, the high-pressure air flowing into the tank is ejected from the gap between the front wall of the tank and the water receiving portion. The jetted high pressure air causes water droplets adhering to the back surface of the tank and the water receiving portion to be pushed out and jump out of the main body, or to adhere to the outside of the front wall of the tank and the outer periphery of the front surface of the main body.
[0006]
Further, in the conventional hand drying device (see, for example, Patent Document 1), the water droplets of the hand inserted into the hand insertion portion are splashed by the high-pressure air ejected from the air ejection nozzle, causing the user to feel uncomfortable and uncomfortable. There was a problem of hygiene.
[0007]
The present invention prevents water droplets containing hand dirt from moving and adhering to the outer periphery of the front surface of the hand dryer or the surrounding wall from the hand insertion section or tank due to high-pressure air. An object of the present invention is to provide a hand dryer that does not splash directly.
[0008]
[Means for Solving the Problems]
A hand drying device according to the present invention includes a hand insertion portion having an opening through which a hand can be taken in and out, and an air stream generated by a high pressure air generator is ejected as a high-speed air flow by an air nozzle to the hand insertion portion. Moisture adhering to the hand at the insertion part is blown off into the hand insertion part by a high-speed air flow to dry the hand, and a bowl-shaped water scattering prevention plate extends vertically on the left and right sides of the opening of the hand insertion part. The water scattering prevention plate is configured to extend from the side surface of the opening portion in the vertical direction and then extend substantially in parallel to the side surface toward the inside of the opening portion .
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Embodiment 1. FIG.
FIG. 1 is a perspective view of a hand dryer according to Embodiment 1 of the present invention, and FIG. 2 is a side view of the hand dryer shown in FIG. The hand dryer according to Embodiment 1 of the present invention is a wall-embedded type in which most of the main body box 1 behind the front outer periphery 1a is embedded in the wall W (see FIG. 2). A high-pressure air generator 2 that generates high-pressure air is provided inside the upper portion of the main body box 1 so that a high-speed air flow is ejected from an air ejection nozzle 3 (air nozzle) that is elongated horizontally. . In addition, a hand insertion portion 4 having an opening 4 a on the front side of the main body box 1 is provided at the lower portion of the main body box 1. The bottom of the hand insertion part 4 is a water receiving part 5, and when water droplets adhering to the hand are blown into the hand insertion part 4 by a high-speed air flow, the water drops are collected from the water introduction hole 5 to the hand insertion part 4. It falls into the tank 7 at the bottom. The tank 7 is configured to be removable from the main body box 1 with a tank front wall 7a.
[0010]
When a hand is inserted into the hand insertion part 4, a sensor (not shown) reacts and the high-pressure air generator 2 starts operation. When the high-pressure air generator 2 starts operation, air is sucked from the air suction ports 8 provided on the left and right sides of the air ejection nozzle 3, passes through the air suction path 9 on the upper front side inside the main body box 1, and then the high-pressure air It is made high-pressure air by the generator 2 and is further squeezed by the air jet nozzle 3 to be jetted to the manual insertion portion 4 as a high-speed air stream (see the arrow in FIG. 2). At this time, the sucked air hits a water shielding member 10 provided in the middle of the air suction path 9 to remove moisture, and is filtered by the air filter 11. The water shielding member 10 is integrated with the air filter 11 and is configured to be removable.
[0011]
FIG. 3 is a cross-sectional view of the hand insertion portion 4. On the side surface side of the opening 4 a of the hand insertion portion 4, a water splash prevention plate 12 having a bowl-like cross section is provided, and the tip of the water splash prevention plate 12 faces the inner direction of the hand insertion portion 4. ing. As shown in FIG. 1, the water scattering prevention plate 12 is provided with a certain length on the side surface side of the opening 4 a of the hand insertion portion 4. In FIG. 1, the water scattering prevention plate 12 is not provided over the entire length of the opening 4a, but may be provided over the entire length of the opening 4a so that there is no gap. In FIG. 3, the water scattering prevention plate 12 is provided in front of the opening 4a. However, it may be provided slightly behind the side surface of the hand insertion portion 4 as long as it is in the vicinity of the opening 4a.
[0012]
As shown by the arrows in FIG. 3, when a high-speed air flow is ejected from the air ejection nozzle 3, the high-speed air flow that hits the hand inserted into the hand insertion portion 4 or the water receiving portion 4 The air flows in the internal direction or the side direction and is reflected, and the wind flows along the side surface of the hand insertion portion 4 toward the user.
However, since the water splash prevention plate 12 is provided, the wind flowing toward the user along the side surface of the hand insertion portion 4 is changed in the direction toward the inside of the hand insertion portion 4 and blown off from the hand. The water droplets do not jump toward the user, and the wind hits them without feeling uncomfortable.
[0013]
Further, water droplets blown from the hand are attached to the side surface of the hand insertion portion 4 and pushed out toward the opening 4a side by the flow of wind as shown by the arrows in FIG. However, since the water droplets are blocked by the water splash prevention plate 12 and fall to the water receiving portion 5, the front outer periphery 1a is not reached.
[0014]
In the hand drying device of the first embodiment, the direction of the wind is changed by the water splash prevention plate 12 and the water droplets adhering to the side surface of the hand insertion portion 4 are dammed up. The outer periphery 1a and surrounding walls are not contaminated with water droplets.
[0015]
Embodiment 2. FIG.
FIG. 4 is a cross-sectional view of the hand insertion portion 4 of the hand dryer according to the second embodiment of the present invention. In the second embodiment, instead of the water scattering prevention plate 12 of the first embodiment, a water scattering prevention plate 12a having a curved cross section is provided. Other parts are the same as those in the first embodiment. In addition, although this Embodiment 2 and Embodiment 1 are things about a wall-buried type hand dryer, as long as the side surface side of the hand insertion part 4 is not open, it is a wall-hanging type or floor-standing type hand dryer. It can also be applied to devices.
[0016]
According to the second embodiment, the same effect as that of the first embodiment can be obtained by making the cross section of the water scattering prevention plate 12a into a curved shape, and the water droplets collected on the water scattering prevention plate 12a can be easily removed with a cloth or the like. It can be wiped off and cleaning becomes easy. In addition, an effect of smoothing the wind flow can be obtained.
[0017]
Embodiment 3. FIG.
FIG. 5 is a vertical cross-sectional view of the lower portion of the hand insertion portion 4, the water receiving portion 5, and the tank 7 of the hand drying device according to the third embodiment of the present invention. In the second embodiment, a water droplet scattering prevention plate 13 directed in the inner direction and the outer direction of the hand insertion portion 4 is provided on the water receiving portion 5 at the bottom of the hand insertion portion 4 on the opening 4a side. The water droplet scattering prevention plate 13 may be provided over the entire rear of the tank front wall 7a, or may be provided only at the left and right ends as shown in FIG. Is higher than the water droplet scattering prevention plate 13. Other portions are the same as those in the first embodiment, but the water scattering prevention plate 12 may or may not be provided. 6 shows a state in which the tank 7 is removed and the water droplet scattering prevention plate 13 can be seen.
[0018]
In the third embodiment, when a high-speed air flow is ejected from the air ejection nozzle 3, the wind blows in the direction of the opening 4 a along the water receiving portion 5 as shown by the arrow in FIG. As a result, a wind blows inside the tank 7. At this time, even if the water droplets adhering to the surface of the water receiving portion 5 are blown off in the direction of the opening 4a by the wind blown along the water receiving portion 5, the water droplet splashing prevention plate 13 causes the water droplet to splash from the opening 4a. Does not hit the user. Further, even if water droplets adhering to the back surface or the like of the water receiving portion 5 are blown off by the wind blowing inside the tank 7, the gap 15 between the water receiving portion 5 and the tank front wall 7a is blocked, It does not bounce to the user or move to the front surface of the tank front wall 7a to contaminate the tank front wall 7a or the front outer periphery 1a.
[0019]
Moreover, since the upper end part of the tank front wall 7a is in a position higher than the water droplet scattering prevention plate 13, the user cannot easily see the water droplet scattering prevention plate 13, so that the design is excellent. In addition, you may provide the water droplet scattering prevention board 13 in any one of the internal direction of the hand insertion part 4, and an external direction (refer FIG. 7).
[0020]
Embodiment 4 FIG.
FIG. 7 is a vertical cross-sectional view of the lower part of the hand insertion portion 4, the water receiving portion 5, and the tank 7 of the hand drying device according to the fourth embodiment of the present invention. In the fourth embodiment, instead of the water droplet scattering prevention device 13 of the third embodiment, a water droplet scattering prevention plate 13a having a curved longitudinal section is provided, and the tip portion is an internal direction of the hand insertion portion 4. Facing. The tank front wall 7a is not higher than the water droplet scattering prevention plate 13a.
[0021]
In the fourth embodiment, by making the longitudinal section of the water droplet scattering prevention plate 13a into a curved shape, the same effects (except for design) as in the third embodiment can be obtained, and water droplets collected on the water droplet scattering prevention plate 13a Can be easily wiped off with a cloth or the like, and cleaning becomes easy. In addition, an effect of smoothing the wind flow can be obtained.
[0022]
Embodiment 5. FIG.
FIG. 8 is a vertical cross-sectional view of the lower portion of the hand insertion portion 4, the water receiving portion 5, and the tank 7 of the hand drying device according to the fifth embodiment of the present invention. In the fifth embodiment, an exhaust port 16 is provided at the rear portion of the tank 7. Further, only the water scattering prevention plate 13 b that faces the inside of the hand insertion portion 4 is provided. Other parts are the same as those of the third embodiment shown in FIG. In addition, although this Embodiment 5 is a thing about a wall-buried type hand dryer, it is applicable also to a wall-hanging type or a floor-standing type hand dryer.
[0023]
In the fifth embodiment, by providing the exhaust port 16 at the rear portion of the tank 7, when a high-speed air flow is ejected from the air ejection nozzle 3, the wind blowing through the water introduction hole 6 and inside the tank 7 is generated. Since the air is discharged from the exhaust port 16, the wind blowing toward the opening 4a is weakened. Therefore, water droplets do not jump to the user or move to the front surface of the tank front wall 7a to contaminate the tank front wall 7a or the front outer periphery 1a, and are directed toward the outside of the manual insertion portion 4 of the water droplet scattering prevention plate 13b. There is no need to provide.
[0024]
【The invention's effect】
As described above, according to the present invention, by providing the water scattering prevention plate, the wind that flows toward the user along the side surface of the hand insertion portion changes direction toward the internal direction of the hand insertion portion, The water droplets blown from the hand do not jump toward the user, and the wind hits and does not feel uncomfortable. Further, the water droplets adhering to the side surface of the hand insertion portion are not pushed out and reach the front outer periphery.
[Brief description of the drawings]
FIG. 1 is a perspective view of a hand dryer according to Embodiment 1 of the present invention.
FIG. 2 is a side view of the hand drying apparatus according to the first embodiment of the present invention.
FIG. 3 is a cross-sectional view of a hand insertion portion of the hand drying device according to the first embodiment of the present invention.
FIG. 4 is a cross-sectional view of a hand insertion portion of a hand dryer according to Embodiment 2 of the present invention.
FIG. 5 is a longitudinal sectional view of a lower part of a hand insertion part, a water receiving part, and a tank part of a hand drying apparatus according to Embodiment 3 of the present invention.
FIG. 6 is a perspective view showing an example of a hand dryer according to Embodiment 3 of the present invention.
FIG. 7 is a longitudinal sectional view of a lower part of a hand insertion part, a water receiving part and a tank part of a hand drying apparatus according to Embodiment 4 of the present invention.
FIG. 8 is a longitudinal sectional view of a lower part of a hand insertion part, a water receiving part, and a tank part of a hand drying apparatus according to a fifth embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Main body box, 1a Front outer periphery, 2 High pressure air generator, 3 Air ejection nozzle, 4 Hand insertion part, 4a Opening part, 5 Water receiving part, 6 Water conveyance hole, 7 Tank, 7a Tank front wall, 8 Air inlet , 9 Air suction passage, 10 Water shielding member, 11 Air filter, 12 Water scattering prevention plate, 13 Water droplet scattering prevention plate, 15 Clearance, 16 Exhaust port.

Claims (6)

A hand insertion portion having an opening through which a hand can be taken in and out is provided, and an air flow generated by the high-pressure air generator is ejected as a high-speed air flow by an air ejection nozzle to the hand insertion portion and adheres to the hand at the hand insertion portion. A hand-drying device that blows moisture into the hand insertion portion by a high-speed air flow and dries the hand,
On the left and right side surfaces of the opening portion of the manual insertion portion, a bowl-shaped water scattering prevention plate is provided in the vertical direction . The water scattering prevention plate extends vertically from the side surface of the opening portion, and A hand-drying apparatus configured to extend inwardly and substantially parallel to the side surface. On the opening side of the bottom portion of the hand insertion portion, a water droplet scattering prevention plate extending upward from the bottom portion of the hand insertion portion and then toward the inside of the hand insertion portion is provided over the entire left and right direction of the bottom portion. The hand dryer according to claim 1, wherein the hand dryer is provided. On the opening side of the bottom portion of the hand insertion portion, a water droplet scattering prevention plate extending upward from the bottom portion of the hand insertion portion and extending outward from the hand insertion portion is provided over the entire left and right direction of the bottom portion. In addition, a tank that collects moisture generated in the manual insertion portion through a water guide hole provided in the bottom portion is provided below the bottom portion of the insertion portion, and the tank is directed toward the outside of the manual insertion portion. The hand-drying device according to claim 1 or 2 , wherein a front side of the tank is closed by a tip of a water droplet scattering prevention plate and a front wall of the tank .   Below the bottom of the insertion portion is provided with a tank that collects moisture generated in the manual insertion portion through a water guide hole provided in the bottom, and the upper end of the front wall of the tank is the water droplet scattering prevention plate The hand dryer according to claim 1 or 2, wherein the hand dryer is located at a higher position. On the opening side of the bottom portion of the hand insertion portion, a water droplet scattering prevention plate extending upward from the bottom portion of the hand insertion portion and then toward the inside of the hand insertion portion is provided over the entire left and right direction of the bottom portion. A tank for collecting water generated in the manual insertion portion through a water guide hole provided in the bottom portion, and a front wall of the tank and the water droplet scattering prevention plate. The front surface of the tank is open to the outside, and the upper end of the front wall of the tank is at a position higher than the water splash prevention plate, and the tank The hand drying apparatus according to claim 1 , wherein an exhaust port is provided at a rear portion .   The hand dryer according to any one of claims 1 to 5, wherein the main body of the hand dryer is a wall-buried type in which most of the body except the front portion is embedded in a wall.

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