JP3886240B2 - Hand dryer - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a hand drying device that dries a wet hand when a hand is washed in a bathroom or a toilet.
[0002]
[Prior art]
Conventionally, this kind of hand drying apparatus is known those described in Japanese Patent Application flat No. 08-254119 (JP-A-10-99235).
[0003]
Hereinafter, the hand dryer will be described with reference to FIG.
As shown in the figure, the main body 101 fixed to the wall surface is composed of a front case 102 and a water tray 103 projecting from the lower part. The front case 102 is provided with an air blowing means 104, a heat generating means 105, and a control means 108. At the lower end of the front case 102, the air blowing nozzle 106 includes a front case 102 and a water tray 103. It is installed toward the space 102a. In addition, an air suction port 117 of the air blowing means 104 is disposed below the water receiving tray 103, and a water receiving cup 114 having a communication pipe 113 that is detachable from the front and communicates with the water receiving tray 103 is disposed. In addition, a water receiving cup cover 121 is installed on the upper surface of the water receiving cup 114 to prevent undulation caused by blowing air from the drying space 102 a leaking from the communication pipe 113. On the other hand, a detachable filter frame 122 is installed at the air suction port 117.
[0004]
In the above configuration, when a wet hand is inserted into the dry space 102a, the control means 108 sucks air from the air suction port 117 through the filter frame 122, and hot air is formed by the air blowing means 104 and the heat generating means 105. Air blown from the nozzle 106 scatters the water on the hand and dries it. At this time, the water droplets that have left the hand gather in the water receiving tray 103 and are collected in the water receiving cup 114 from the communication pipe 113.
[0005]
[Problems to be solved by the invention]
In such a conventional hand drying device, if dust or dust accumulates on the filter provided at the air inlet, the intake amount decreases and the drying capacity decreases, so it is necessary to periodically clean the filter, If the location of the filter is difficult to understand, it may be used as it is without being cleaned. In addition to the filter, there are many parts that can be separated from the main body such as the water receiving cup and the water receiving cup cover. There is a problem that the labor is increased and it is necessary to be careful about loss, and it is required to prevent forgetting to clean the filter and reduce the number of parts to be separated and inspected.
[0006]
Also, if the filter mounting position is deep inside the main body, it is inconvenient to attach and detach the filter, and there is a problem that the filter is difficult to clean, and it can be easily cleaned even when the filter is inside the main body. Is required.
[0007]
Also, you may forget to attach the filter to the intake port or operate without a filter due to the filter being detached, etc.In that case, dust and dust directly enter the air blowing means, not only reducing the air flow, There is a problem that dust or the like may accumulate inside the motor and damage the motor, and it is required that the motor can be operated only when the filter is attached to the intake port.
[0008]
In addition, even if the filter is attached to the air inlet, if dust or dust enters due to damage or deformation of the filter, there are problems such as reducing the air volume and damaging the motor as described above. It is required that even if it enters the passage, it cannot enter the blowing means.
[0009]
In addition, when cleaning the collecting means that collects dust and dust in the intake passage, there is a problem that the collecting means may be forgotten, and when the collecting means is not securely attached to the proper position Is required to be unable to drive.
[0010]
The present invention solves such a conventional problem, can prevent forgetting to clean the filter, reduce the number of parts to be cleaned, and when the filter is earned in the back of the main body The filter can be easily cleaned, and when the filter is not in the intake port, it can prevent unauthorized operation, and even when dust enters the intake passage due to a broken filter, etc. An object of the present invention is to provide a hand-drying device that can protect the blowing means and that cannot start operation when there is no protective filter for protecting the blowing means from dust.
[0011]
[Means for Solving the Problems]
In order to achieve the above object, the hand-drying apparatus of the present invention has a blowing means provided inside the main body, a drying chamber formed in the main body, and a blowing nozzle for sending the air generated by the blowing means to the drying chamber. A water receiving means detachably provided at a lower portion of the drying chamber, the water receiving means being formed by a water receiving cup and a water receiving cup cover, and an intake port and an intake passage communicating with the suction side of the air blowing means, And a filter provided at the intake port, and the tip of the water receiving cup cover and the filter are connected to each other.
[0012]
According to the present invention, it is possible to obtain a hand dryer that can prevent forgetting to clean the filter and reduce the number of parts to be cleaned.
[0013]
Another means is provided with a filter connected to the water receiving means so as to be separable.
[0014]
And according to this invention, when the filter is accommodated in the back of a main body, the hand-drying apparatus which can clean a filter easily is obtained.
[0015]
The other means is provided with a detecting means for detecting the presence or absence of a filter connected to the water receiving means and a control means for driving and controlling the air blowing means by a signal from the detecting means.
[0016]
And according to this invention, when a filter is not in an inlet port, the hand dryer which can prevent an irregular driving | operation is obtained.
[0017]
Another means is that a protective filter is detachably provided in the intake passage on the downstream side of the filter.
[0018]
And according to this invention, even when dust etc. penetrate | invade into an intake passage from an inlet port by the tearing of a filter etc., the hand dryer which can protect a ventilation means is obtained.
[0019]
The other means is provided with preliminary detection means for detecting the presence / absence of a protective filter provided in the intake passage and control means for driving and controlling the blower means by a signal of the preliminary detection means.
[0020]
And according to this invention, when there is no protection filter which protects a ventilation means from dust, the hand-drying apparatus which cannot start an operation | movement is obtained.
[0021]
DETAILED DESCRIPTION OF THE INVENTION
The present invention includes a blower provided inside the main body, a drying chamber formed in the main body, a blowout nozzle for sending the blown air generated by the blower to the drying chamber, and a detachable attachment to the lower portion of the drying chamber. The water receiving means provided, the water receiving means is formed of a water receiving cup and a water receiving cup cover, and includes an intake port and an intake passage communicating with the suction side of the blower unit, and a filter provided in the intake port. The tip of the water receiving cup cover and the filter are connected, and the water receiving means and the filter are connected. Therefore, when the water accumulated in the water receiving means is discarded, the degree of contamination of the filter can be seen at the same time. Has the effect of being able to
[0022]
Further, the filter connected to the water receiving means is provided so as to be separable, and has an effect that the filter can be pulled out together with the water receiving means and only the filter can be separated and cleaned.
[0023]
In addition, a detection means for detecting the presence or absence of a filter connected to the water receiving means, and a control means for driving and controlling the blower means by a signal of this detection means, when detecting the non-attachment of the filter, It has the effect of preventing the air blowing means from being driven by the control means.
[0024]
In addition, a protective filter is detachably provided in the intake passage on the wake side of the filter.If dust or the like enters the intake passage without being caught by the filter at the intake port, the protective filter is provided on the wake side. It has the effect | action that it can prevent and protect | penetrate into the ventilation means by collecting dust.
[0025]
Further, there are provided preliminary detection means for detecting the presence or absence of a protective filter provided in the intake passage on the downstream side of the filter, and control means for driving and controlling the blower means by a signal of the preliminary detection means. When non-mounting is detected, the operation of the blower means is prevented from being started by the control means, and the dust entry into the blower means is prevented.
[0026]
Embodiments of the present invention will be described below with reference to the drawings.
[0027]
【Example】
Example 1
As shown in FIGS. 1 to 3, the main body 1 fixed to the wall surface is composed of a front case 2 and a water receiving tray 3 projecting from the lower portion. The front case 2 is provided with an air blowing means 4, a heat generating means 5, a control means 8, and a hand sensor 9. A blow-out nozzle 6 is provided at the front lower portion of the front case 2 so as to protrude from the front case 2 and water. It blows out toward the drying chamber 2a surrounded by the saucer 3. In addition, an intake passage 10 that communicates with the suction side of the air blowing means is disposed in the back of the center of the main body 1, and communicates with an intake port 11 that opens at the bottom of the water tray 3.
[0028]
Further, a drain port 7 for draining water accumulated in the drying chamber 2a is provided on the upper surface of the water tray 3 corresponding to the lower surface of the drying chamber 2a.
[0029]
On the other hand, the water receiving means that is detachable from the front surface is formed by a water receiving cup 14 and a water receiving cup cover 15, and a communication rod 13 that communicates with the drain outlet 7 is installed in the water receiving cup cover 15. A filter 12 is installed at the intake port 11 and is connected to the water receiving cup cover 15 substantially integrally.
[0030]
In the above configuration, when a hand is inserted into the drying space 2a, the hand sensor 9 detects the hand, operates the air blowing means 4 and the heat generating means 5 via the control means 8, and passes outside air from the intake port 11 through the filter 12. Is sucked into the blowing means 4 through the intake passage 10, and high-speed hot air is sent from the blowing blowing nozzle 6 to the drying chamber 2a. The high-speed hot air blown from the blow-off nozzle 6 hits the surface of the hand, and dries while separating attached water droplets. The separated water droplets collect on the upper surface of the water receiving tray 3 on the lower surface of the drying chamber 2a, and are collected from the drain port 7 through the communication rod 13 to the water receiving cup 14. By repeating this operation, dust and dust in the outside air accumulate on the filter 12, and water accumulates in the water receiving cup 14. When the water in the water receiving cup 14 is discarded, the water receiving cup 14 is pulled out from the lower part of the water receiving tray 3. At this time, the filter 12 is connected to the water receiving cup cover 15 attached to the upper surface of the water receiving cup 14. Therefore, it can be extracted at the same time and cleaned at the same time as the water receiving cup 14, and forgetting to clean the filter 12 can be prevented. In addition, when the water receiving cup 14 is attached to the water receiving tray 3, the filter 12 is also attached at the same time, and forgetting to attach can be prevented.
[0031]
(Example 2)
As shown in FIGS. 1 and 2, the filter 12 is detachably installed at the tip of the water receiving cup cover 15.
[0032]
In the above configuration, the filter 12 is substantially integrally coupled to the water receiving cup cover 15 during normal use. However, when the water receiving cup 14 is extracted and cleaned, the filter 12 may be separated from the water receiving cup cover 15. And can be easily cleaned.
[0033]
Further, when the filter 12 is stored in the back of the main body or pulled out, the filter 12 is attached to the tip of the water receiving cup cover 15, so that the filter 12 can be easily attached or removed.
[0034]
(Example 3)
As shown in FIGS. 1 and 2, a detection switch 21 for detecting attachment / detachment of the filter 12 is disposed on the upper surface of the water receiving cup cover 15. When the filter 12 is attached, the ON detection signal is controlled. It is sent to means 8 to be operable. When the filter 12 is not attached, the detection signal is turned off so that the operation of the main body cannot be started by the control means 8.
[0035]
In the above configuration, when the filter 12 is not attached, the blower unit 4 cannot be operated, and it is possible to prevent failure by preventing dust and dust from entering the front case 2 through the air inlet 11.
[0036]
Example 4
As shown in FIGS. 1 to 3, a protective filter 22 is detachably installed in the intake passage 10 on the back surface of the main body 1 together with the filter 12 of the intake port 11.
[0037]
In the above configuration, when the air blowing means 4 is operated, dust and dust can be reliably removed by the filter 12 of the intake port 11 and the protective filter 22 provided in the intake passage 10, and the filter 12 of the intake port 11 is forgotten to be attached. Even when contaminated air is sucked into the intake passage 10 due to damage or damage, the protective filter 22 can prevent dust and dust from entering the front case 2.
[0038]
(Example 5)
As shown in FIGS. 1 to 3, a detection switch 23 for detecting attachment / detachment of the protective filter 22 is disposed in the intake passage 10 inside the front case 2. When the protective filter 22 is attached, the detection switch 23 is turned on. A detection signal is sent to the control means 8 so that the air blowing means 4 and the like can be operated. When the protective filter 22 is not attached, the detection signal is turned off, and the control unit 8 disables the air blowing unit 4 and the like.
[0039]
In the above configuration, when the protective filter 22 is not attached, it is possible to prevent dust and dust from entering the front case 2 by forcibly operating the air blowing means 4 and the like.
[0040]
【The invention's effect】
As is clear from the above embodiments, according to the present invention, since the water receiving means and the filter are connected, forgetting to clean or forgetting the filter can be prevented, and parts management can be facilitated by reducing the number of cleaning parts. A hand dryer can be provided.
[0041]
Further, by providing the filter so as to be separable from the water receiving means, it is possible to provide a hand-drying device that can improve the cleaning performance and can easily attach and remove the filter to the back of the main body.
[0042]
In addition, it is possible to provide a hand-drying device that can prevent a failure by providing detection means for detecting the presence or absence of a filter so that the blower means is not driven when there is no filter.
[0043]
In addition, even if the filter is detached or damaged, the protective filter 22 is provided in the intake passage 10, so that a hand-drying device can be provided that prevents dust and dust from entering the blowing means and prevents malfunction. can do.
[0044]
In addition, it is possible to provide a hand-drying device that can be provided with a detection unit that detects the presence or absence of a protective filter and that can control the air blowing unit and the like so as not to be driven when the protective filter is not present.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a hand-drying apparatus according to Examples 1 to 5 of the present invention. FIG. 2 is an exploded perspective view of a main part of the Examples 1 to 3. FIG. 4 and rear perspective view of Example 5 [FIG. 4] Cross-sectional view of a conventional hand dryer [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Main body 2a Drying chamber 4 Blowing means 6 Blowing nozzle 8 Control means 10 Intake passage 11 Intake port 12 Filter 14 Water receiving cup (water receiving means)
15 Water receiving cup cover (water receiving means)
21 Detection means 22 Protection filter 23 Preliminary detection means

Claims (5)

Blower means provided in the main body, a drying chamber formed in the main body, a blowing nozzle for sending the air generated by the blower means to the drying chamber, and a water receiver detachably provided at the lower part of the drying chamber Means, and the water receiving means includes a water receiving cup and a water receiving cup cover, and includes an air inlet and an intake passage communicating with the suction side of the air blowing means, and a filter provided in the air inlet. A hand dryer that connects the tip of the cup cover and the filter. The hand dryer according to claim 1, wherein a filter connected to the water receiving means is detachable. The hand-drying apparatus according to claim 1 or 2, further comprising: a detection unit that detects the presence or absence of a filter connected to the water receiving unit; and a control unit that drives and controls the blower unit based on a signal from the detection unit. The hand dryer according to claim 1 or 2, wherein a protective filter is detachably provided in the intake passage on the downstream side of the filter. 5. The hand dryer according to claim 4, further comprising: preliminary detection means for detecting the presence or absence of a protective filter provided in the intake passage; and control means for driving and controlling the blower means based on a signal from the preliminary detection means.

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