TW201912088A - Hand drying device - Google Patents

Abstract

A hand drying device (100) having: a casing (1) having a recessed section formed therein that forms a hand insertion section (3) being a space into which hands can be inserted and removed; a nozzle that jets an airflow downwards from above the hand insertion section (3); a water receptacle (4) having a rear surface-side water receptacle (4a) arranged to the rear of the hand insertion section (3) and a bottom surface-side water receptacle (4b) arranged below the hand insertion section (3); and a drain container (6) attached to and detached from the casing (1), below the bottom surface-side water receptacle (4b). The casing (1) comprises a casing locking protrusion (19a) supporting the drain container (6). A drain container center-of-gravity position (51) is at the same position as or further to the rear than a drain container support point (52), in the front/rear direction, said drain container support point (52) being where the casing locking protrusion (19a) supports the drain container (6).

Description

   Hand dryer   

The invention relates to a hand drying device for drying wet hands.

Conventionally, a hand-drying device which dries hands by blowing an air flow on wet hands is known. Patent Document 1 discloses a hand drying device that sprays airflow to a hand inserted in a dry space where a hand can be inserted and removed from the hand insertion portion that is open to the outside, and wipes the moisture attached to the hand or changes dry.

【Advanced Patent Literature】

【Patent Literature】

[Patent Document 1] JP 2008-246055

The hand dryer disclosed in Patent Document 1 increases the capacity of the front side of the drain container to ensure a space for storing water. Therefore, the center of gravity of the drainage container is located further forward than the position supported by the box. Therefore, the hand drying device disclosed in Patent Document 1 is that the drain container is inclined downward due to its own weight, and a gap is generated between the box and the drain container, which impairs the appearance. Furthermore, when water accumulates in the drain container, the center of gravity of the drain container moves further forward than in the empty case. Therefore, when water is accumulated in the drain container, the gap between the tank and the drain container is enlarged.

The present invention was developed in view of the above, and its object is to obtain a hand dryer that can prevent a gap between a detachable drain container and a tank.

In order to solve the above-mentioned problems and achieve the object, the present invention has: a box that forms a concave portion that constitutes a hand insertion portion that can be inserted into a processing space of a hand; a nozzle that ejects airflow downward from above the hand insertion portion The water receiving part has: a back side water receiving part, which is arranged behind the hand insertion part; and a bottom side water receiving part, which is arranged below the hand insertion part; and a drainage container, which is connected to the bottom side water Dismount the box under the receiving part. The box system includes a box locking protrusion that supports the drain container. The center of gravity of the drain container is located at the same position in the front-back direction as the point where the box locking protrusion supports the drain container, or is more rearward than the point where the box locking protrusion supports the drain container.

The hand-drying device of the present invention has the effect of preventing a gap between the detachable drainage container and the tank.

1‧‧‧ case

2‧‧‧Hand insertion

3‧‧‧Hand insertion section

4‧‧‧ water receiving department

4a‧‧‧Water receiving section on the back side

4b‧‧‧Bottom side water receiving department

5‧‧‧Drain

6‧‧‧Drainage container

6a‧‧‧Upper end

7‧‧‧Base

8‧‧‧High-pressure airflow generating device

9‧‧‧Suction port

10‧‧‧Inspiratory air path

11‧‧‧fitting structure

12‧‧‧ nozzle

13‧‧‧Exhaust air path

14‧‧‧Hand detection sensor

15‧‧‧heater

18‧‧‧Operation panel

19a‧‧‧Box locking protrusion

19b‧‧‧Drainage vessel locking receiving part

20‧‧‧Maintenance board

20a‧‧‧inclined surface

31‧‧‧Motor cover

32‧‧‧Link

37‧‧‧ Upper opening

41b‧‧‧Fixed bottom face

41ba, 42ba‧‧‧ outer area

42b‧‧‧Disassembly bottom face

42bb‧‧‧anti-wall structure

43‧‧‧ overlapping area

44‧‧‧Waterproof wall

44a‧‧‧Erecting part of waterproof wall

44b‧‧‧Waterproof wall slope

51、55‧‧‧Drain container gravity center position

52‧‧‧Drain container support point

53‧‧‧ Junction

54‧‧‧Bottom of drainage container

71, 75‧‧‧ Drain container fitting

72, 76‧‧‧ Disassembly and assembly of the bottom face fitting part

77‧‧‧Drain container protrusion

100‧‧‧Hand drying device

Fig. 1 is a perspective view showing the appearance of the hand dryer of the first embodiment of the present invention.

Fig. 2 is a perspective view showing the appearance of the hand dryer of the first embodiment in a state where the bottom portion has been removed from the drain container.

Fig. 3 is a cross-sectional view of the locking portion of the box and the drain container of the hand dryer of the first embodiment.

Fig. 4 is a cross-sectional view of the central portion in the lateral direction of the hand dryer of the first embodiment.

Fig. 5 is a cross-sectional view of the locking portion of the drain container and the box of the hand dryer of the first embodiment.

Fig. 6 is a cross-sectional view of the locking portion of the drain container and the tank in the state in which water is stored in the drain container in the hand dryer of the first embodiment.

Fig. 7 is a cross-sectional view showing a state in which the drain container and the bottom portion of the hand dryer of the first embodiment are connected.

FIG. 8 is a cross-sectional view showing a state before connecting the drain container and the bottom surface of the hand dryer of the first embodiment.

Fig. 9 is a cross-sectional view showing a state in which the hand dryer of the first embodiment has been detached from the drain container and the bottom portion is detached.

Hereinafter, a hand dryer according to an embodiment of the present invention will be described in detail based on the drawings. In addition, this invention is not limited by this embodiment.

First embodiment

Fig. 1 is a perspective view showing the appearance of the hand dryer of the first embodiment of the present invention. Fig. 2 is a perspective view showing the appearance of the hand dryer of the first embodiment in a state where the bottom portion has been removed from the drain container. Fig. 3 is a cross-sectional view of the locking portion of the box and the drain container of the hand dryer of the first embodiment. As shown in FIGS. 1 and 2, the box 1 constituting the outer profile of the hand-drying device 100 is formed with a hand insertion port 2 on the front side and side sides where the user who wants to hand-dry stands, and includes The hand insertion part 3 of the processing space connected by the mouth 2. That is, the hand insertion portion 3 is a space formed inside the concave portion of the lower portion of the front surface of the box 1 by opening the front surface and both side surfaces. The user can insert and remove the hand through the hand insertion port 2 on the front and both sides.

The water receiving part 4 is composed of a plurality of elements, including: a back side water receiving part 4a which is a back part, and has a standing wall surface arranged along the height direction of the hand dryer 100 behind the hand insertion part 3; and It is the bottom water receiving portion 4b of the bottom portion, and is provided below the hand insertion portion 3. The back side water receiving portion 4a and the bottom side water receiving portion 4b are collectively referred to as the water receiving portion 4. The water receiving portion 4 is arranged from below to the rear of the hand insertion portion 3, and is provided so as to form an L-shape when viewed in side profile.

The waterproof wall 44 protruding forward is provided at the left and right end edges of the rear water receiving portion 4a, and the waterproof wall 44 protruding upward is provided at the front and left and right end edges of the bottom water receiving portion 4b. The waterproof wall 44 prevents water droplets blown off from the hand and attached to the back side water receiving portion 4a or the bottom side water receiving portion 4b from scattering to the side or front of the hand dryer 100.

The bottom water receiving portion 4b has a fixed bottom portion 41b, which is integrally formed with the back side water receiving portion 4a, and a bottom portion 42b, which covers the upper end portion 6a of the drain container 6 and is aligned with the drain container 6 1 Detachable. The fixed bottom surface portion 41b is connected to the lower portion of the back side water receiving portion 4a and extends toward the front side. The detachable bottom surface portion 42b is formed in a tray shape that allows the drain container 6 to be detachably attached. The back side water receiving portion 4a is formed integrally with the fixed bottom portion 41b. In addition, the back side water receiving portion 4a and the fixed bottom surface portion 41b form part of the tank 1.

The waterproof wall 44 includes: a waterproof wall upright portion 44a provided near the center of the hand insertion portion 3; and a waterproof wall inclined portion 44b provided closer to the outside of the body than the waterproof wall upright portion 44a. The waterproof wall inclined portion 44b provided in the waterproof wall 44 extending forward from the back side water receiving portion 4a is inclined so that the inner side of the hand insertion portion 3 is closer to the back side. The waterproof wall inclined portion 44b provided on the waterproof wall 44 extending upward from the bottom surface side water receiving portion 4b is inclined so that the closer to the center side of the hand insertion portion 3, the closer to the lower side. The waterproof wall inclined portion 44b is provided over the entire length of the waterproof wall 44. By providing the water-repellent wall inclined portion 44b on the water-repellent wall 44, the water droplets attached to the water-repellent wall inclined portion 44b flow not to the outside of the box 1, but to the hand insertion portion 3 side.

The water droplets attached to the waterproof wall inclined portion 44b of the waterproof wall 44 extending forward from the back side water receiving portion 4a move downward by their own weight. The lower portion of the waterproof wall inclined portion 44b of the waterproof wall 44 extending forward from the back side water receiving portion 4a is connected to the waterproof wall standing portion 44a of the waterproof wall 44 extending upward from the bottom surface side water receiving portion 4b. Therefore, the water droplets flowing down the waterproof wall inclined portion 44b of the waterproof wall 44 extending forward from the back side water receiving portion 4a flow along the waterproof wall standing portion 44a of the waterproof wall 44 extending upward from the bottom side water receiving portion 4b The water receiving portion 4b on the bottom surface side below the hand insertion portion 3. The water droplets flowing to the bottom water receiving portion 4b are accumulated in the drain container 6 through the drain port 5.

If the water-retaining wall 44 is not provided with the water-repellent wall inclined portion 44b, the water drops blown from the hand stay on the water-repellent wall 44 and the user who uses it then inserts his hand into the hand insertion portion 3, and is waterproof when blowing out the airflow from the nozzle The possibility of water droplets on the wall 44 flying outside the box 1. The hand dryer 100 is often installed in places used by many people in commercial facilities and restaurants, so the water droplets blown from the hand are required to flow quickly in the water receiving section 4 after the hand dryer 100 is used , And can be recycled to the drainage container 6.

The rear water receiving portion 4a is provided on the rear side of the hand insertion portion 3. The bottom water receiving portion 4b is divided into a fixed bottom portion 41b and a detachable bottom portion 42b in a tray shape. The fixed bottom portion 41b extends from the lower portion of the back water receiving portion 4a toward the front side of the hand dryer 100, and Being fixed to the box 1, the detachable bottom surface portion 42b is detachably installed. The back side water receiving portion 4a is formed integrally with the fixed bottom surface portion 41b, and constitutes a part of the tank 1.

The detachable bottom surface portion 42b is inclined so as to fall further toward the rear, and the drain port 5 is provided at the inclined lower end. The outer edge region 42ba on the rear side of the bottom portion 42b is attached and laid on top of the outer edge region 41ba on the front side before the fixed bottom portion 41b to form an overlapping region 43. In addition, in the overlapping region 43, the outer edge region 42ba is disposed above the outer edge region 41ba in a state where there is a gap between the outer edge region 41ba and the drain opening 5 to be the drain port 5.

Below the water receiving portion 4, a drain container 6 that stores water dripped from the drain 5 is provided to be freely insertable and removable from the tank 1. The drain container 6 is fixed to the box 1 by the box locking projection 19a which is a part of the box 1 being locked to the drain container locking receiving portion 19b which is a part of the drain container 6. The attachment and detachment of the drain container 6 of the tank 1 will be described later.

On the surface of the water receiving section 4, a silicon-based water-repellent coating, a fluorine-based water-repellent coating, or a coating of a vaporized titanium hydrophilic material is applied, making it difficult for dirt to adhere to the water receiving section 4 Of the surface. In addition, the surface of the water receiving portion 4 is impregnated with an antibacterial agent, so that the surface of the water receiving portion 4 is difficult to reproduce bacteria.

Fig. 4 is a cross-sectional view of the central portion in the lateral direction of the hand dryer of the first embodiment. Above the hand insertion part 3, the nozzle 12 which blows the airflow downward toward the hand insertion part 3 is provided. On the back side of the nozzle 12, a hand detection sensor 14 that detects whether a hand is inserted in the hand insertion portion 3 is provided adjacent to the nozzle 12.

On the side surface of the box 1 above the hand insertion portion 3, a maintenance plate 20 forming an air inlet 9 is arranged. In the maintenance plate 20, a filter (not shown) is integrally formed. The maintenance plate 20 is provided on a part of the surface on an inclined surface 20a inclined so as to approach the center side in the left-right direction as it approaches the front side from the back side, and has a skylight shape. The suction port 9 is formed by the gap provided between the front edge portion of the inclined surface 20 a and the back surface of the maintenance plate 20.

Above the hand insertion portion 3, there is a space surrounded by a base 7 that constitutes the outer profile of the back side of the hand dryer 100 and the box 1 into a box shape. The base 7 constitutes the outer profile of the back side of the upper part of the hand dryer 100 and is fixed to the back side of the box 1. In the space inside the box-shaped part, it is housed: a DC brushless motor; a high-pressure airflow generating device 8 which is an airflow generating part, which is composed of a turbo fan rotated by a DC brushless motor; and not shown The control circuit shown is to operate the high-pressure airflow generating device 8 in response to the detection signal of the hand detection sensor 14. In addition, commutator motors or induction motors can also be provided instead of DC brushless motors.

In addition, in the space inside the box-shaped part, there are provided: an intake air path 10 that connects the intake side of the high-pressure airflow generating device 8 to the intake port 9; and an exhaust air path 13 that connects The exhaust side of the high-pressure airflow generating device 8 communicates with the nozzle 12. In the middle of the exhaust air path 13 and upstream of the nozzle 12, a heater 15 is provided that heats the air sent from the high-pressure airflow generating device 8 and turns it into warm air.

Next, the configuration of the nozzle 12 and the exhaust air path 13 will be described. The element constituting the exhaust air path 13 covers the exhaust side of the high-pressure airflow generating device 8, and is connected to the motor cover 31 constituting the chamber via a connecting portion 32 that prevents leakage of high-speed airflow generated from the high-pressure airflow generating device 8. The connection portion 32 is made of heat-resistant silicone resin in consideration of the heat generated by the heater 15 disposed in the exhaust air path 13. The motor cover 31 and the exhaust air path 13 are fixed with screws. Therefore, the components of the heater 15 and the high-pressure airflow generating device 8 can be easily replaced. Also, the exhaust air passage 13 may be cleaned.

The exhaust air duct 13 is inclined downward toward the front so that the downstream side of the box 1 is located forward, and is curved in the rearward direction so that the downstream side is located at the middle of the exhaust air duct 13. At the lower end of the exhaust air path 13, a nozzle 12 is provided. The air flow blown out from the nozzle 12 is rearward in the direction in which the exhaust air path 13 extends. The exhaust air path 13 is located in the front of the components inside the box 1 except the box 1. Since the nozzle 12 is provided at the downstream end of the exhaust air path 13 bent backward, the front end of the connecting portion 32 and the position of the nozzle 12 in the front-rear direction are substantially the same.

The connecting portion 32 requires a space in which a sealing material and a locking member are arranged. The dimensions of the front and rear directions of the box 1 are determined by the size of the exhaust air path 13 located in the front of the box 1. According to the dimensions of the front and rear directions of the box 1 and the position of the nozzle 12, the distance between the front face of the box 1 and the outlet of the nozzle 12 can be made the shortest, because the wind blown from the nozzle 12 goes to the rear. Therefore, there are few water droplets blown away from the front, and since the nozzle 12 is located near the front end of the box 1, it is easy to use.

Assuming that the user is an adult, when the distance between the blowing port of the nozzle 12 and the back side water receiving portion 4a is made from 110 mm to 130 mm, the wind blows to the entire hand when rubbing hands, and the hand does not touch the back side water receiving部 4a. In addition, when the distance between the front end of the box 1 and the outlet of the nozzle 12 is 10 mm or less, the convenience of use of the hand dryer 100 can be improved. As a result, the distance between the nozzle 12 and the water receiving portion 4a on the back side can be increased without increasing the size of the body of the hand dryer 100 as much as possible.

The hand dryer 100 is provided with the exhaust air path 13 forward of the front end of the connecting portion 32. The airflow blown from the nozzle 12 is blown from the same position as the front end of the connecting portion 32 to the rear side, so Under the space of inserting the hand, the protrusion of the body of the hand drying device 100 from the wall is suppressed to a minimum. In addition, since the water droplets blown off from the hand are blown off toward the wall surface side of the water receiving portion 4a on the back side, the water receiving portion 4 located below the tank 1 can be reliably recovered. The hand-drying device 100 can be made to be easy to use by making the depth dimension of the box 1 below 150 mm, it can reliably collect water drops, and is hygienic. In addition, the hand-drying device 100 can be installed in a narrow face-washing place and a narrow toilet space by making the depth dimension of the box 1 below 150 mm to reduce the amount of protrusion from the wall.

On the other hand, in a hand dryer that is different from the hand dryer 100 system and the nozzle is arranged behind the front end of the connecting portion, the distance between the front of the box and the outlet of the nozzle becomes longer, and the hand is inserted into the hand insertion Also, the wind will not blow the entire hand, and the hand may not dry out. Therefore, in order to make a hand dry, the hand dryer which arrange | positioned the nozzle behind the front end of a connection part must make a box larger, and it is difficult to miniaturize a product.

In addition, the hand dryer 100 is located in the front stage of the suction air path 10, and a filter (not shown) made of resin or metal that removes dust in the air sucked into the high-pressure airflow generating device 8 and the maintenance plate 20 are integrated form. A filter (not shown) is detachably mounted on the inner side of the box 1. The filter (not shown) can be disassembled by inserting and removing the maintenance plate 20 on the side of the box 1. The area of the filter (not shown) is larger than the cross-sectional area in the direction orthogonal to the ventilation direction of the air intake port 9 and the air intake duct 10. In addition, the filter not shown may be a HEPA (High Efficiency Particulate Air) filter or an antibacterial filter.

The suction port 9 may be provided on the back of the box 1. When the suction port 9 is provided on the back of the box 1, the suction port 9 is arranged on a part of the base 7. By providing the suction port 9 on the back side of the box 1, the design of the appearance of the hand dryer 100 is improved.

On the upper surface of the box 1, an operation switch section (not shown) is arranged. The operation switch is provided with: a power switch (not shown) to switch the control circuit on and off; and an operation switch (not shown) to switch the strength of the wind speed from the nozzle 12 or to heat Opening and closing of the device 15.

The operation switch part is composed of the following components, a control board not shown, which is assembled with a power switch and an operation switch not shown; and an operation switch cover not shown, which is installed to cover the control board from above. The operation switch cover is made of acrylonitrile-butadiene-styrene copolymerized resin (Acrylonitrile Butadiene Styrene, ABS) or polypropylene resin, and is provided with buttons (not shown) for operating the power switch and the operation switch. When the button is pressed by hand, the button is elastically movable so as to be movable in the vertical direction. When operating the switch, use a tactile switch or an electrostatic capacitance type switch.

The operation switch unit is fixed above the air intake duct 10. In the box 1, a top opening 37 is provided so that the operation switch portion appears on the top of the box 1 when the box 1 is installed. In a state where the box 1 is attached to the base 7, the operation switch portion is fitted into the upper opening 37. The case 1 and the operation switch are fixed in the vicinity of the upper opening 37, and can be installed in a state where there is almost no gap between the upper opening 37 and the operation switch. It is also possible to use screws for fixing the operation switch unit and the box 1.

Moreover, the operation switch part is covered by the operation part panel 18 attached to the box 1 so that opening and closing is possible. Explain the procedures for operating the switch section. First, the operation unit panel 18 is horizontally moved toward the outer side of the box 1 in the left-right direction, and then the moved operation unit panel 18 is rotated upward around the rotation axis to open the operation unit panel 18. The rotating shaft of the operation unit panel 18 is made movable in the left-right direction, and in a state where the operation unit panel 18 is "closed", there is a structure in which no gap occurs between the box 1 and the operation unit panel 18. Therefore, it does not damage the appearance, and can prevent the intrusion of dust and the infiltration of water. In addition, when the operation unit panel 18 is opened, it is necessary to horizontally move the operation unit panel 18 toward the outer side in the left-right direction of the box 1, so it is difficult for a person other than a maintenance worker who understands the operation method to open the operation unit panel 18. Therefore, the hand-drying device 100 can prevent playing with the operation switch portion.

A label or plastic film is affixed to the top of the operation switch cover to indicate the switching of the power supply, the switching of the wind speed of the wind blown from the nozzle 12, and the description of the status of the opening and closing of the heater 15. In addition, a light bulb for indicating the state is provided on the top of the operation switch cover. Because the hole formed in the cover of the operation switch to pass the light of the bulb is plugged by a label or a plastic film, it is possible to prevent the intrusion of dust and the infiltration of water.

Next, the attachment and detachment of the drain container 6 of the tank 1 will be described. As shown in FIGS. 2 and 3, a pair of box locking protrusions 19a protruding forward of the fixed bottom surface 41b of the bottom water receiving portion 4b is provided on the lower portions of both sides of the tank 1. Since the box 1 includes a box locking protrusion 19a, and the drain container 6 includes a drain container locking receiving portion 19b that can be inserted into the box locking protrusion 19a, the drain container 6 can be inserted and removed in the front-rear direction of the hand dryer 100, and The drain container 6 is made to be freely attachable to and detachable from the tank 1.

Therefore, at least a part of the fitting structure of the drain container 6 and the box 1 composed of the box locking protrusion 19a and the drain container locking receiving portion 19b is provided at the lower portion of the box 1, and at least a part of the fitting structure is located The drain 5 located at the boundary between the fixed bottom portion 41b and the detachable bottom portion 42b is further rearward, so that the water received by the water receiving portion 4 does not reach the fitting located further rear than the drain 5 which is the dividing portion The structure can suppress the accumulation of dirt.

When the drain container 6 is attached to the tank 1, the tank locking projection 19 a of the tank 1 is fitted into the drain container locking receiving portion 19 b of the drain container 6. Thereby, as shown in FIG. 3, the drain container 6 is fixed to the tank 1 without falling from the tank 1. In addition, the attachment and detachment of the drain container 6 of the tank 1 is performed independently of the tank 1 regardless of the attachment and detachment of the bottom surface portion 42b of the bottom water receiving portion 4b. Therefore, the drain container 6 is in a state where the bottom portion 42b is detached from the drain container 6, and the state in which the tank 1 is still fixed can be maintained.

Fig. 5 is a cross-sectional view of the locking portion of the drain container and the box of the hand dryer of the first embodiment. Fig. 6 is a cross-sectional view of the locking portion of the drain container and the tank in the state in which water is stored in the drain container in the hand dryer of the first embodiment. In the state where the drain container 6 is attached to the tank 1, the tank locking protrusion 19 a sets the length of the tank locking protrusion 19 a in the front-back direction to support the drain container 6 on the front side of the drain container center of gravity position 51. The box locking protrusion 19a supports the drain container 6 at the drain container support point 52 located at the front end and the upper end. By adopting this structure, in the state where the drain container 6 is attached to the tank 1, the gravity center position 51 of the drain container is located behind the drain container support point 52 of the box locking protrusion 19a, so it is possible to prevent the drain container 6 from The drain container 6 is attached in a state in which it is inclined to fall forward due to its own weight. In addition, in a state where the drain container 6 is attached to the tank 1, the gravity center position 51 of the drain container is located forward of the center of the tank 1 in the front-rear direction.

In addition, the bottom surface 54 of the drainage container 6 is inclined so that the rear side descends. The rear side of the bottom surface 54 of the drainage container is used to attach the tank 1 to a horizontal surface. The slope of the lower side of the drain container bottom surface 54 continues to the gravity center position 51 of the drain container. In addition, the inclination of the drain container bottom surface 54 descending to the rear side may continue to the rear side of the gravity center position 51 of the drain container. When water accumulates in the drainage container 6, the volume of water accumulated behind the gravity center position 51 of the drainage container is larger than the volume of water accumulated in front of the gravity center position 51 of the drainage container. That is, the gravity center position 55 of the drainage container in a state where water is accumulated in the drainage container 6 is moved to the rear of the gravity center position 51 of the drainage container in a state where the drainage container 6 is empty. By adopting this structure, in the state where the drainage container 6 is installed in the tank 1, the gravity center position 55 of the drainage container in the state where the water is accumulated in the drainage container 6 is located behind the drainage container support point 52 of the tank locking protrusion 19a Therefore, it can be prevented that the drain container 6 is installed in a state where the front portion of the drain container 6 is inclined downward.

In addition, the junction 53 between the side surface of the tank 1 and the drain container 6 is not inclined even when water is accumulated in the drain container 6, so the drain container 6 can be attached without a gap.

On the other hand, when the drain container 6 is detached from the tank 1, by pulling the drain container 6 forward, the box locking protrusion 19 a of the box 1 is pulled out from the drain container locking receiving portion 19 b of the drain container 6. By pulling out the box locking projection 19a from the drain container locking receiving portion 19b, the drain container 6 has been removed from the box 1.

In addition, the left and right end portions of the detachable bottom surface portion 42b are provided with a barrier structure 42bb, and cover the joint between the box locking projection 19a of the box 1 and the drain container locking receiving portion 19b of the drain container 6. Thereby, it is possible to reduce the accumulation of dirt on the junction of the box locking projection 19a and the drain container locking receiving portion 19b due to continued use.

Next, the attachment and detachment of the attachment / detachment bottom portion 42b of the drain container 6 will be described. Fig. 7 is a cross-sectional view showing a state in which the drain container and the bottom portion of the hand dryer of the first embodiment are connected. FIG. 8 is a cross-sectional view showing a state before connecting the drain container and the bottom surface of the hand dryer of the first embodiment. Fig. 9 is a cross-sectional view showing a state in which the hand dryer of the first embodiment has been detached from the drain container and the bottom portion is detached. The detachable bottom surface portion 42b is configured to be detachably detachable to the drain container 6, so that it can be inserted and removed from the rear side of the drain container 6, and is attached to the drain container 6 above. That is, the lower wall portion of the outer peripheral edge portion of the barrier structure 42bb has a shape corresponding to the upper end portion 6a of the drain container 6. Therefore, by attaching the lower end portion of the outer peripheral portion of the bottom surface portion 42b to the upper end portion 6a of the drain container 6, the bottom surface portion 42b is fixed to the drain container 6. Therefore, the drain container 6 and the detachable bottom surface portion 42b are made to be connected and fixed by a fitting structure.

In addition, the detachable bottom surface portion 42b can be detachably attached to the drain container 6 in any state where the drain container 6 is attached to the tank 1 or the drain container 6 has been removed from the tank 1. Therefore, as shown in Fig. 9, the bottom surface portion 42b can be detached and detached from the drain container 6 in a state where the drain container 6 is attached to the tank 1.

In addition, a drain container fitting portion 71 fitted with a detachable bottom surface portion 42b connected to the drain container 6 from the rear side is provided on the upper part of the inner walls of the left and right sides of the drain container 6. The shape of the drain container fitting portion 71 is such that the length in the front-rear direction is longer than the length in the up-down direction. That is, the dimension of the drainage container fitting portion 71 in the depth direction is longer than the dimension in the height direction. The lower portion on the rear side of the drain container fitting portion 71 is chamfered at the corner portion for easy insertion of the removable bottom portion 42b. In addition, a drain container fitting portion 75 is provided on the upper portion of the inner wall on the front side of the drain container 6.

In the detachable bottom surface portion 42b, the detachable bottom surface fitting portion 72 is provided on the side surface outside the detachable bottom surface portion 42b. The detachable bottom surface fitting portion 72 is fitted with the drain container fitting portion 71. The shape of the detachable bottom surface fitting portion 72 is such that the length in the front-rear direction is longer than in the vertical direction. That is, the dimension of the attachment / detachment bottom surface fitting portion 72 in the depth direction is longer than the dimension in the height direction. The upper part of the front side of the detachable bottom surface fitting portion 72 is chamfered for easy insertion into the drain container 6. In addition, on the front side of the detachable bottom surface portion 42b, a detachable bottom surface fitting portion 76 is provided. In this way, the drain container 6 and the detachable bottom surface portion 42b include fitting portions that are fitted to each other.

When connecting the drain container 6 and the detachable bottom surface portion 42b, the detachable bottom surface portion 42b is slid from the rear side to the front side of the drain container 6 and connected. In a state where the drain container 6 and the detachable bottom surface portion 42b are connected, the drain container fitting portion 71 and the detachable bottom surface portion fitting portion 72 are formed, the drain container fitting portion 71 becomes the upper side, and the detachable bottom portion fitting portion 72 becomes It abuts on the lower side and is arranged so as not to shake. In addition, the drain container fitting portion 75 and the detachable bottom surface fitting portion 76 are the drainage container fitting portion 75 on the upper side, and the detachable bottom surface fitting portion 76 abuts on the lower side, and are arranged so as not to shake.

When the detachable bottom surface portion 42b is detached, the detachable bottom surface portion 42b is slid toward the rear side of the drain container 6 after the drain container 6 is detached, whereby the detachable bottom surface portion 42b is separated from the drain container 6.

As described above, the detachable bottom surface portion 42b has a structure that cannot be removed upward from the drain container 6. Therefore, when the user uses the hand dryer 100, the airflow of the collision hand flows toward the back side water receiving portion 4a, and then flows along the back side water receiving portion 4a to flow into the gap between the fixed bottom portion 41b and the detachable bottom portion 42b. The drain opening 5 constituted by the divided portion prevents the detachable bottom surface portion 42b from floating upward due to wind pressure.

On the rear side of the drain container 6, a drain container protrusion 77 protruding upward is provided. The upper surface of the drain container protrusion 77 is round or quadrangular. The drain container 6 and the detachable bottom surface portion 42b are connected by the drain container fitting portions 71, 75 and the detachable bottom surface fitting portions 72, 76, so the drain container protrudes when the drain container 6 is attached to the box 1. The portion 77 comes into contact with the back side of the fixed bottom portion 41b. That is, the detachable bottom surface portion 42b is in contact with the tank 1 when the drain container 6 is attached to the tank 1.

Therefore, when the drain container 6 is inserted and removed, the bottom portion 42b can be inserted and removed without being stuck on the back side of the fixed bottom portion 41b. In addition, since the drain container protrusion 77 is in contact with the back side of the fixed bottom portion 41b or has a structure with almost no gap, it can be smoothly inserted and removed without shaking. In addition, the installation strength is increased when the drainage container 6 is installed. Therefore, even when the drain container 6 is full of water, the drain container 6 will not tilt. In addition, since only the drainage container protrusion 77 abuts, the friction when installing the drainage container 6 is small, the insertion property is also good, and the installation property can be improved while ensuring the installation strength.

In addition, when cleaning the state where the detachable bottom surface portion 42b and the drain container 6 are attached to the box 1, the detachable bottom surface portion 42b and the drain container 6 are wiped with a damp cloth or the like, so the load on the drain container 6 acts downward. Since the drain container protrusion 77 is provided, there is no sway in the drain container 6, so that the drain container 6 can be easily wiped and cleaned by the load acting underneath. In addition, the junction 53 between the side surface of the tank 1 and the drain container is not swayed by the drain container protrusion 77 because the load acts on the drain container 6 under the drain container 6, so that a gap can be prevented.

In addition, even when hanging on the drain container 6 or pushing the drain container 6 excessively downward, by providing the drain container protrusion 77, the tip side of the drain container 6 can be prevented from tilting downward.

In addition, the drain container protrusion 77 has a circular or quadrangular shape with a low height. Therefore, when the downward load acts on the drain container 6, it will not break or be damaged. In addition, the drain container 6 is repeatedly inserted and removed, and the drain container protrusion 77 is not damaged.

In addition, the hand dryer 100 of the first embodiment removes the drain container 6 from the box 1 and then removes the bottom surface portion 42b from the drain container 6 to facilitate cleaning. Therefore, when the water accumulated in the drain container 6 is discarded, the bottom surface portion 42b is detached from the drain container 6 and can be easily cleaned.

Next, the recovery of water droplets in the hand dryer 100 will be described. When a user inserts a hand into the hand insertion part 3, the high-pressure airflow generation device 8 operates and the airflow is blown out from the nozzle hole 12. By this, the airflow blows off the water droplets from the hand. The water drops blown off from the hand are received by the water receiving part 4. As described above, the water receiving portion 4b on the bottom surface side of the water receiving portion 4 is located in the overlapping area 43, and is provided in the outer edge area 42ba on the rear side of the bottom surface portion 42b and before the fixed bottom surface portion 41b. The drain 5 of the gap between the outer edge regions 41ba.

The water droplets received by the water receiving part 4 are sent to the drain 5. And it is collected by the drain container 6 arranged below the water receiving part 4. The water droplets blocked by the detachable bottom surface portion 42b flow backward and reach the drain port 5, and then drop from the drain port 5 to the drain container 6. On the other hand, the water droplets blocked by the fixed bottom portion 41b flow forward and reach the drain port 5, and then drop from the drain port 5 to the drain container 6. In addition, the water droplets blocked by the back side water receiving portion 4a flow to the fixed bottom surface portion 41b, flow forward in the fixed bottom surface portion 41b and reach the drain port 5, and then drop from the drain port 5 to the drain container 6. In this way, the water droplets received by the water receiving portion 4 pass through the drain 5 which is a gap provided between the fixed bottom portion 41b of the bottom water receiving portion 4b and the divided portion of the detachable bottom portion 42b, and the water receiving portion 4 The water drops received are directed to the drain container 6.

Therefore, it is possible to prevent dirt from accumulating on the divided portion of the fixed bottom surface portion 41b and the detachable bottom surface portion 42b of the bottom water receiving portion 4b. That is, by providing a gap between the fixed bottom surface portion 41b and the detachable bottom surface portion 42b and forming the drain port 5, the dirt in the divided portion is washed away by water droplets, so that the accumulation of dirt in the divided portion can be suppressed. In addition, the fixed bottom surface portion 41b and the detachable bottom surface portion 42b are not directly fixed, because the structure is not fixed by the fitting structure of the fixed bottom surface portion 41b and the detachable bottom surface portion 42b, so the shape of the bottom side water receiving portion 4b It becomes simple, and the cleaning ability is improved.

In addition, when the water droplets received by the water receiving portion 4 flow to the drain container 6, dirt easily accumulates in the bottom water receiving portion 4 b. The bottom side water receiving portion 4b is mainly exposed to the user's line of sight, which may damage the appearance when the cleaning frequency is low.

Here, the attaching and detaching bottom surface portion 42b is not to attach and detach the box 1, but as described above, is configured to be separately attached to and detached from the drain container 6. Thereby, the bottom surface portion 42b can be easily removed without using a tool. Therefore, the hand-drying device 100 can be easily cleaned by removing the detachable bottom surface portion 42b which is frequently cleaned due to the removal of dirt, so the sanitation and cleanliness of the water receiving section 4 can be maintained, and the Cleanliness and maintainability are improved. In addition, the method of fixing the bottom surface portion 42b of the drain container 6 in addition to the fitting structure is a claw structure, and the same effect can be obtained.

Moreover, by removing the detachable bottom surface portion 42b, the bottom surface portion 41b can be easily cleaned and fixed even when the drain container 6 is attached to the tank 1. Therefore, water droplets scattered during hand drying adhere to the fixed bottom surface portion 41b, and dirt gradually adheres during continued use, but the fixed bottom surface portion 41b can be easily cleaned.

In addition, the detachable bottom portion 42b is supported by the drain container 6, and the fixed bottom portion 41b is not fixed. Furthermore, as shown above, the drain container 6 is directly supported by the tank 1. Thereby, even in the case where the weight of the water accumulated in the drain container 6 becomes heavier, since the force does not directly act on the divided portion of the detachable bottom portion 42b and the fixed bottom portion 41b, the structure of the divided portion can be simplified, and The cleaning property of the water receiving part 4 can be improved.

In addition, by adopting a structure in which the detachable bottom surface portion 42b and the fixed bottom surface portion 41b are not locked, the detachable bottom surface portion 42b and the fixed bottom surface portion 41b can be formed in a simple shape with few irregularities, so the bottom surface side water receiving portion 4b cleaning becomes easy.

In addition, the hand-drying device 100 is constructed so that the detachable bottom surface portion 42b where dirt easily accumulates is not locked to the box 1, but is locked to the drain container 6. Further, a fitting structure portion 11 for fitting and locking the detachable bottom surface portion 42b and the drain container 6 is provided on the lower side of the outer peripheral portion of the detachable bottom surface portion 42b. That is, as shown in FIG. 1, the hand dryer 100 is configured such that the fitting structure portion 11 faces the exterior surface of the hand dryer 100. With this configuration, the hand dryer 100 can dispose the fitting structure portion 11 where the dirt gradually adheres due to continued use, that is, the junction between the detachable bottom surface portion 42b and the drain container 6, facing the water droplet Directly blow out the area of the hand insertion part 3. Therefore, since the hand dryer 100 receives the water received by the bottom-side water receiving portion 4b without reaching the fitting structure portion 11, it is possible to suppress the accumulation of dirt on the fitting structure portion 11, the cleaning frequency is low, and the bottom surface side can also be maintained The beauty of the periphery of the water receiving part 4b.

Moreover, by attaching and detaching the bottom surface portion 42b arranged above the drain container 6, the user's line of sight from above can be blocked to lock the fitting of the detaching and bottom surface portion 42b that the dirt gradually adheres due to continued use Structure part 11. Thereby, the uncomfortable feeling of the user who does not want to insert his hand into the hand insertion part 3 due to the appearance of the periphery of the bottom water receiving part 4b can be reduced.

In addition, the water receiving part 4 is composed of two elements of the back side water receiving part 4a and the bottom side water receiving part 4b, and the division part is made into one place. Generally, the divided parts of components are easy to accumulate dirt. However, since the water receiving part 4 is divided into one place, the accumulation of dirt can be minimized.

In addition, a water-retaining wall 44 protruding forward or upward is provided in the left-right direction and the front edge of the water receiving portion 4. Moreover, the fitting structure of the drainage container 6 and the box 1 is provided at least in the lower part of the waterproof wall 44. Therefore, the water droplets blocked by the waterproof wall 44 quickly flow to the detachable bottom surface portion 42b or the fixed bottom surface portion 41b. The drain port 5 leads to the drain container 6. This makes it difficult for the water droplets blocked by the waterproof wall 44 to reach the fitting structure of the drain container 6 and the tank 1, and it is possible to suppress the accumulation of dirt on the fitting structure.

As described above, the hand dryer 100 of the first embodiment can be easily cleaned by removing only the detachable bottom surface portion 42b of the water receiving portion 4b on the bottom surface side of the water receiving portion 4 where dirt is accumulated the most. Moreover, by removing the detachable bottom surface portion 42b, the bottom surface portion 41b can be easily cleaned and fixed even when the drain container 6 is attached to the tank 1. Thereby, the hand dryer 100 can maintain the sanitation and cleanliness of the water receiving part 4 that must be cleaned frequently, and the cleanability and maintainability of the water receiving part 4 are improved.

Therefore, according to the hand dryer 100 according to the first embodiment, the effect of improving the sweepability of the detachable water receiving part 4 can be obtained.

The configuration shown in the above embodiment is an example of the content of the present invention, and it may be combined with other well-known technologies, or a part of the configuration may be omitted or changed without departing from the scope of the present invention.

Claims (5)

    A hand-drying device is characterized by having: a box, which forms a concave part, which constitutes a hand insertion part which can be inserted into the treatment space of the hand; a nozzle, which sprays a gas flow downward from above the hand insertion part; water receiving The part has: a back side water receiving part, which is arranged behind the hand insertion part; and a bottom side water receiving part, which is arranged below the hand insertion part; and a drain container, which is connected to the bottom side water The box is disassembled under the receiving part; the box includes a box locking protrusion supporting the drain container; the center of gravity of the drain container is located at the same point in the front-back direction as the point where the box locking protrusion supports the drain container Position, or behind the point where the box locking protrusion supports the drain container.         For example, the hand drying device according to item 1 of the patent application, wherein the drainage container has a downward slope at the bottom; the center of gravity of the drainage container in which water accumulates is moved further than the center of gravity of the empty drainage container.         For example, in the hand drying device of claim 1, in the state where the drainage container is installed in the box, the center of gravity of the drainage container is located more forward than the center of the front and rear direction of the box.         For example, in the hand drying device of claim 2 of the patent scope, in the state where the drainage container is installed in the box, the center of gravity of the drainage container is located more forward than the center of the front and rear direction of the box.         For example, the hand dryer of any one of items 1 to 4 of the patent application scope, wherein the depth of the box is less than 150mm.