TWI661800B - Hand dryer - Google Patents

Abstract

The hand-drying device (100) includes: a box (1), which forms a recessed portion, which is formed on the inside by a hand insertion portion (3), which is a processing space in which a hand can be inserted; a nozzle (12), which is inserted from the hand (3) The air flow is sprayed downward from above; the water receiving part (4) includes: a back side water receiving part (4a), which is arranged behind the hand insertion part (3); and a bottom side water receiving part (4b) ), Which is arranged below the hand insertion part (3); and a drainage container (6), which is for disassembling and installing the box (1) below the bottom side water receiving part (4b); the bottom side water receiving part (4b) It has: a fixed bottom surface portion, which is integrally formed with the back side water receiving portion (4a); and a detachable bottom surface portion (42b), which covers the upper end portion of the drainage container (6), and faces the drainage container (6) together. The box (1) is detachable; the drainage container (6) and the detachable bottom surface portion (42b) include a plurality of fitting portions that are fitted to each other in the front-rear direction; the detachable bottom surface portion (42b) is connected from the rear side with The drainage container (6) is fitted.

Description

Hand dryer

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

Conventionally, hand dryers have been known in which a hand is dried by blowing air on a wet hand. Patent Document 1 discloses a hand drying device including a drying chamber for inserting and removing a hand toward an insertion opening that is open to the outside; a nozzle for sending air toward the drying chamber; and a fan motor for sending from the nozzle. Air; the water receiving part below the drying chamber is composed of 2 elements. The hand drying device disclosed in Patent Document 1 has a configuration in which at least one of the two elements constituting the water receiving portion can be removed together with the drainage container, and the fitting portion of the two elements constituting the water receiving portion forms a gap. Drain.

[Leading Patent Literature] [Patent Literature]

[Patent Document 1] Japanese Patent No. 4069956

The water receiving part which receives the water droplet blown off by a hand is provided with the drainage opening which discharges a water droplet to a drainage container. From the drain, not only water droplets, but also the air flowing into the hand flows along the wall of the drying chamber. When the air flows into the drain container, a gap is formed between the element constituting the water receiving part and the drain container, and water droplets Can be scattered from the gap between the element constituting the water receiving part and the drainage container.

The present invention has been developed in view of the above, and an object thereof is to obtain a hand dryer which is less likely to generate a gap between a component constituting a water receiving portion and a drainage container.

In order to solve the above-mentioned problems and achieve the object, the present invention includes: a box forming a recessed portion, which is formed on the inside by a hand insertion portion that is a handleable space for inserting and removing a hand; The air flow is ejected; the water receiving unit includes: a back side water receiving unit disposed behind the hand insertion portion; and a bottom side water receiving unit disposed below the hand insertion portion; and a drainage container attached to the bottom surface. Disassemble the box under the side water receiving section. The bottom side water receiving portion includes a fixed bottom surface portion integrally formed with the back side water receiving portion; and a detachable bottom surface portion covering the upper end portion of the drainage container and being detachable to the box together with the drainage container. The drainage container and the detachable bottom surface portion include fitting portions that fit into each other at a plurality of positions in the front-rear direction. The removable bottom surface is fitted into the drainage container from the rear side.

The hand drying device of the present invention has an effect that a gap is hardly generated between the element constituting the water receiving portion and the drainage container.

1‧‧‧carton

2‧‧‧hand insertion mouth

3‧‧‧hand insertion

4‧‧‧ Water receiving department

4a‧‧‧Back side water receiving section

4b‧‧‧Bottom side water receiving section

5‧‧‧ Drain

6‧‧‧ Drain container

6a‧‧‧upper end

7‧‧‧ base

8‧‧‧High-pressure air flow generating device

9‧‧‧ suction port

10‧‧‧ Intake air path

12‧‧‧ Nozzle

13‧‧‧Exhaust air duct

14‧‧‧hand detection sensor

15‧‧‧ heater

18‧‧‧ operation panel

19a‧‧‧box locking protrusion

19b‧‧‧Draining container locking receiving part

20‧‧‧ repair board

20a‧‧‧inclined surface

31‧‧‧ Motor cover

32‧‧‧Connection Department

37‧‧‧ Upper opening

41b‧‧‧Fixed bottom face

41ba, 42ba‧‧‧ Outer edge area

42b‧‧‧Removable bottom face

42bb‧‧‧anti-wall structure

43‧‧‧ overlapping area

44‧‧‧Waterproof wall

44a‧‧‧Waterproof wall upright

44b‧‧‧Waterproof slope

51, 55‧‧‧ Position of the center of gravity of the drainage container

52‧‧‧Draining container support point

53‧‧‧Joint

54‧‧‧ bottom surface of drainage container

71, 75‧‧‧ Drain container fitting part

72, 76‧‧‧ detachable bottom face fitting part

77‧‧‧ rear protrusion of drainage container

100‧‧‧hand dryer

Fig. 1 is a perspective view of a hand dryer according to a first embodiment of the present invention.

FIG. 2 is a perspective view of the hand dryer in the first embodiment with the drainage container and the bottom surface removed.

FIG. 3 is a card in a drain container and a box of the hand dryer in the first embodiment Sectional view of the stop section.

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

Fig. 5 is a cross-sectional view showing a state in which the drain container and the bottom surface of the hand dryer of the first embodiment are connected.

Fig. 6 is a sectional view showing a state before the drainage container and the bottom surface of the hand dryer of the first embodiment are connected to each other;

Fig. 7 is a cross-sectional view showing a state in which the bottom surface portion of the hand dryer of the first embodiment has been removed from the drain container;

Fig. 8 is a cross-sectional view showing a state in which the drain container and the bottom surface of the hand dryer of the first embodiment are connected.

Fig. 9 is a cross-sectional view showing a state where a drain container is installed in a box of the hand dryer of the first embodiment.

Hereinafter, a hand dryer according to an embodiment of the present invention will be described in detail with reference to the drawings. The present invention is not limited by the embodiments.

First Embodiment

Fig. 1 is a perspective view of a hand drying device according to a first embodiment of the present invention. FIG. 2 is a perspective view of the hand dryer in the first embodiment with the drainage container and the bottom surface removed. FIG. 3 is a cross-sectional view of the hand dryer of the first embodiment at the locking portion of the drain container and the box. As shown in FIG. 1, FIG. 2 and FIG. 3, the box 1 constituting the outline of the hand drying device 100 forms a hand insertion opening 2 on the front side and the side where a user who wants to dry the hand stands, and includes The hand insertion portion 3 is a processing space connected to the hand insertion port 2. That is, the hand insertion portion 3 It is a space formed inside the recessed part of the lower part of the front surface of the box 1 by opening the front side and both side surfaces. The user can insert and remove a hand from the hand insertion portion 3 through the hand insertion openings 2 on the front and both sides. The box 1 houses the high-pressure airflow generating device 8 described below and the components of the control circuit not shown in the figure.

The water receiving portion 4 is composed of a plurality of elements, and includes a water receiving portion 4a on the back side of the back portion, and has a vertical wall surface provided along the height direction of the hand dryer 100 behind the hand insertion portion 3; and The bottom-surface-side water receiving portion 4 b, which is the bottom surface portion, is provided below the hand insertion portion 3. The back-side water receiving portion 4 a and the bottom-side water receiving portion 4 b are collectively referred to as a water receiving portion 4. The water receiving portion 4 is provided from below to the rear of the hand insertion portion 3 and is provided in an L-shape in a side sectional view.

Waterproof walls 44 protruding forward are provided at the left and right end edge portions of the back side water receiving portion 4a, and waterproof walls 44 protruding upward are provided at the front and left and right end edge portions of the bottom side water receiving portion 4b. The waterproof wall 44 prevents water droplets blown off by the hand and adhering to the back side water receiving portion 4 a or the bottom side water receiving portion 4 b from scattering to the side or front of the hand dryer 100.

The bottom surface water receiving portion 4b includes a fixed bottom surface portion 41b, which is integrally formed with the back surface water receiving portion 4a, and a removable bottom surface portion 42b, which covers the upper end portion 6a of the drainage container 6, and faces the box together with the drainage container 6. 1Removable. The fixed bottom surface portion 41 b is connected to the lower portion of the back-side water receiving portion 4 a and extends toward the front side. The detachable bottom surface portion 42b is formed in a tray shape in which the drain container 6 can be detachably attached. The back side water receiving portion 4a is formed integrally with the fixed bottom surface portion 41b. The rear-side water receiving portion 4 a and the fixed bottom surface portion 41 b form a 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 water-repellent wall inclined portion 44b provided in the water-repellent wall 44 extending forward from the water-receiving portion 4a on the rear side is inclined so that the inner side of the hand insertion portion 3 becomes closer to the rear side. The waterproof wall inclined portion 44b provided on the waterproof wall 44 extending upward from the bottom side water receiving portion 4b is inclined so that the center of the hand insertion portion 3 becomes closer to the lower side. The waterproof wall inclined portion 44 b 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 adhering to the water-repellent wall inclined portion 44b do not flow out of the box 1, but flow down to the hand insertion portion 3 side.

The water droplets attached to the water-repellent wall inclined portion 44 b of the water-repellent wall 44 extending forward from the back-side water receiving portion 4 a 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 rear-side water receiving portion 4a is connected to the waterproof wall upright portion 44a of the waterproof wall 44 extending upward from the bottom-side water receiving portion 4b. Therefore, 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 upright portion 44a of the waterproof wall 44 extending upward from the bottom side water receiving portion 4b. It reaches the bottom surface side water receiving part 4b below the hand insertion part 3. The water droplets flowing to the bottom-surface-side water receiving portion 4 b are accumulated in the drain container 6 through the drain port 5.

If the water-repellent wall 44 is not provided with the water-repellent wall inclined portion 44b, the water droplets blown from the hand stay on the water-repellent wall 44, and then the user who uses it inserts his hand into the hand-insertion portion 3 and blows air from the nozzle 12 described later. There is a possibility that water droplets on the waterproof wall 44 are scattered outside the box 1. The hand dryer 100 is required because it is often installed in commercial facilities and restaurants. The water droplets blown from the hand flow quickly in the water receiving part 4 after the hand dryer 100 is used, and can be recovered to the drain container 6.

The detachable bottom surface portion 42b is inclined so that it descends 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 surface portion 42b is detached and overlaps with the outer edge region 41ba on the front side of the fixed bottom surface portion 41b to form an overlapping area 43. In the overlapping region 43, the outer edge region 42ba is disposed above the outer edge region 41ba in a state where a gap between the outer edge region 42ba and the outer edge region 41ba becomes the drain opening 5.

Below the water receiving portion 4, a drain container 6 storing water dripped from the drain port 5 is provided so as to be able to be inserted into and removed from the tank 1. The drain container 6 is fixed to the tank 1 by the tank locking protrusion 19 a which is a part of the tank 1, and is fixed to the tank 1 by the drain container locking receiving part 19 b which is a part of the drain container 6. Removal and installation of the drainage container 6 of the tank 1 will be described later.

On the surface of the water receiving part 4, a silicon-based water-repellent coating, a fluorine-based water-repellent coating, or a coating of a hydrophilic material having vaporized titanium is applied, making it difficult for dirt to adhere to the water-receiving part 4. The surface. In addition, the surface of the water receiving portion 4 is impregnated with an antibacterial agent, making it difficult for bacteria to multiply on the surface of the water receiving portion 4.

Fig. 4 is a cross-sectional view of the central portion of the hand dryer in the first embodiment in the horizontal direction. Above the hand insertion portion 3, a nozzle 12 that blows airflow downward toward the hand insertion portion 3 is provided. A hand detection sensor 14 that detects whether a hand is inserted into the hand insertion portion 3 is positioned closer to the back side than the nozzle 12 so as to be adjacent to the nozzle 12.

As shown in FIG. 1, a maintenance plate 20 forming an air inlet 9 is arranged on the side of the box 1 above the hand insertion portion 3. Maintenance plate 20 The illustrated filter 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 central portion in the left-right direction as it approaches the front side from the back side, and has a skylight shape. The air inlet 9 is formed by a gap provided between the front edge portion of the inclined surface 20 a and the rear surface of the maintenance plate 20.

As shown in FIG. 4, above the hand insertion portion 3, a base 7 and a box 1 constituting an outer surface of the back side of the hand dryer 100 and the box 1 exist in a box-like shape and surrounded by the space. The base 7 constitutes the outer contour of the hand dryer 100 on the upper back side, and is fixed to the back side of the box 1. The space inside the box-shaped part is filled with: a DC brushless motor; a high-pressure airflow generating device 8 that is an airflow generating section, and is composed of a turbo fan rotated by a DC brushless motor; The control circuit responds to the detection signal from the hand of the hand detection sensor 14 to cause the high-pressure airflow generating device 8 to operate. In addition, commutator motors or induction motors can be used instead of DC brushless motors.

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

Next, the configurations of the nozzle 12 and the exhaust air passage 13 will be described. The element constituting the exhaust air passage 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 connection portion 32 that prevents leakage of high-speed airflow generated from the high-pressure airflow generating device 8. The connection portion 32 is based on the heat generated by the heater 15 arranged in the exhaust air passage 13 and adopts a heat-resistant silicone resin. system. 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. It is also possible to clean the inside of the exhaust air passage 13.

The exhaust air path 13 is slanted downward so that the downstream side of the box 1 is located forward, and is bent in the backward direction so that the downstream side is located rearward in the middle of the exhaust air path 13. A nozzle 12 is provided at a lower end of the exhaust air path 13. The airflow blown out from the nozzle 12 is backward in the extending direction of the exhaust air path 13. The exhaust air path 13 is located in the frontmost among the components inside the box 1 except the box 1. Since the nozzle 12 is provided at the downstream end after the exhaust air path 13 is bent backward, the front end of the connecting portion 32 and the position in the front-back direction of the nozzle 12 are approximately the same.

The connecting portion 32 is a space in which a sealing material and a locking member need to be arranged. The size of the box 1 in the front-rear direction is determined depending on the size of the exhaust air path 13 located at the forefront of the inside of the box 1. According to the size of the front and back direction of the box 1 and the position of the nozzle 12, the distance between the front face of the box 1 and the blowout port of the nozzle 12 can be configured to be the shortest. There are few water droplets blown off by Fang, and the nozzle 12 is located near the front end of the box 1, so it is easy to use.

In a case where the user is an adult, when the distance between the blowing outlet of the nozzle 12 and the water receiving portion 4a on the back side is from 110 mm to about 130 mm, the wind blows to the entire hand while rubbing hands, and the hand does not touch the back side water Receiving section 4a. When the distance between the front end of the box 1 and the outlet of the nozzle 12 is 10 mm or less, the distance between the nozzle 12 and the water receiving portion 4a on the rear side can be made longer without making the body of the hand dryer 100 as large as possible. Can improve the use of hand dryer 100 Convenience.

The hand-drying device 100 is based on the exhaust air passage 13 being located forward of the front end of the connecting portion 32. The blowing air from the nozzle 12 is blown to the rear side from the same position as the front end of the connecting portion 32. In the space where the hand is inserted, the protrusion of the body of the hand dryer 100 from the wall is suppressed to a minimum. In addition, since the water droplets blown from the hand are blown away toward the wall surface side of the back side water receiving portion 4a, the water receiving portion 4 located at the lower portion of the tank 1 can be reliably recovered. The hand-drying device 100 can make the depth dimension of the box 1 below 150 mm, which can be made easy to use, can reliably recover water droplets, and is hygienic. In addition, the hand dryer 100 can be installed in a narrow face-washing place and a narrow toilet space by making the depth dimension of the box 1 less than or equal to 150 mm to reduce the amount of protrusion from the wall.

On the other hand, in a hand dryer different from the hand dryer 100, in which the nozzle is disposed more rearward than the front end of the connection portion, the distance between the front of the box and the blowout port of the nozzle becomes longer, and the hand is inserted into the hand insertion portion. , Yifeng will not blow to the whole of the hand, and may not dry out. For this reason, the hand dryer having the nozzles positioned more rearward than the front end of the connection portion is required to make the box large in order to make the hands dry, and it is difficult to miniaturize the product.

In addition, the hand dryer 100 is located at the front of the suction air duct 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 is integrated with the maintenance plate 20地 Forming. A filter (not shown) is detachably mounted on the inner side of the box 1. The filters not shown in the figure are removable by inserting and removing the maintenance plate 20 on the side of the box 1. The area of the filter not shown in the figure is larger than the cross-sectional area in a direction orthogonal to the ventilation direction of the air inlet 9 and the air inlet 10. In addition, The filters shown in the figure can also be HEPA (High Efficiency Particulate Air) filters or antibacterial filters.

The suction port 9 may be provided on the back of the box 1. When the air intake port 9 is provided on the back surface, the air intake port 9 is disposed 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 external appearance of the hand dryer 100 is improved.

An operation switch portion (not shown) is disposed on the upper surface of the box 1. In the operation switch section, a power switch not shown in the drawing is used to open and close the control circuit; and an operation switch not shown in the drawing is used to switch the strength of the wind speed of the wind blown from the nozzle 12, or The heater 15 is turned on and off.

The operation switch unit is composed of the following components: a control substrate (not shown) is assembled with a power switch and an operation switch; and an operation switch cover (not shown) is installed to cover the control substrate from above. The operation switch cover is made of acrylonitrile-butadiene-styrene copolymerization resin (Acrylonitrile Butadiene Styrene, ABS) or polypropylene resin, and is provided with a button (not shown) for operating the power switch and the operation switch. The button has an elastic shape so that it can move in the up-down direction when the button is pressed by hand. To operate the switch, use a tactile switch or a capacitive switch.

The operation switch unit is fixed above the intake air path 10. In the case 1, an upper surface opening portion 37 is provided so that the operation switch portion appears on the upper surface of the case 1 when the case 1 is installed. As shown in FIG. 1, in a state where the case 1 is mounted on the base 7, the operation switch portion is fitted into the upper opening portion 37. The box 1 and the operation switch portion are fixed near the upper opening portion 37, and can be mounted with almost no gap between the upper opening portion 37 and the operation switch portion. You can also use the operation switch Box 1 is fixed using screws.

In addition, the operation switch unit is covered with an operation unit panel 18 attached to the box 1 so as to be openable and closable. The procedure for operating the operation switch section will be described. First, the operation portion panel 18 is horizontally moved toward the outside of the box 1 in the left-right direction, and the moved operation portion panel 18 is rotated upward about the rotation axis to open the operation portion panel 18. The rotating shaft system of the operation section panel 18 can be moved in the left-right direction, and in a state where the operation section panel 18 is “closed”, there is a structure in which no gap is generated between the box 1 and the operation section panel 18. Therefore, the appearance is not impaired, and the penetration of dust and the penetration of water are prevented. In addition, when the operation unit panel 18 is opened, it is necessary to move the operation unit panel 18 horizontally toward the outside in the left-right direction of the box 1. Therefore, it is difficult for a person other than a maintenance operator who masters the operation method to open the operation unit panel 18. Therefore, the hand-drying device 100 can prevent manipulation of the operation switch portion.

A label or a plastic film is affixed to the top of the operation switch cover to indicate the opening and closing of the power supply, the switching of the wind speed of the wind blown from the nozzle 12, and the description of the opening and closing state of the heater 15. A light bulb for indicating the state is installed on the upper surface of the operation switch cover. Since the hole formed in the operation switch cover for transmitting the light of the bulb is blocked by a label or a plastic film, the intrusion of dust and the infiltration of water can be prevented.

Next, the removal and attachment of the drainage container 6 of the tank 1 will be described. As shown in FIG. 2 and FIG. 3, a pair of box locking protrusions 19a protruding forward from the fixed bottom surface portion 41b of the bottom side water receiving portion 4b are provided on the lower portions of both side surfaces of the box 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 pulled in the front-rear direction of the hand dryer 100, and The drainage container 6 is made Easy to disassemble the box 1.

Therefore, at least a part of the fitting structure of the drainage container 6 and the box 1 constituted by the box locking protrusion 19a and the drain container locking receiving portion 19b is provided at the lower part of the box 1, and at least a part of the fitting structure is located at a ratio The drainage opening 5 located at the boundary between the fixed bottom surface portion 41b and the removable bottom surface portion 42b is further rearward. Thereby, the water received by the water receiving part 4 does not reach the fitting structure located behind the drainage opening 5 which is a division part, and it can suppress the accumulation of a dirt.

When the drain container 6 is attached to the box 1, the box locking projection 19 a of the box 1 is fitted into the drain container locking receiving portion 19 b of the drain container 6. As a result, as shown in FIGS. 1 and 3, the drainage container 6 is fixed to the box 1 without falling from the box 1. The removal and attachment of the drainage container 6 of the tank 1 is performed independently of the bottom surface water receiving portion 4b of the bottom surface 42b, and is performed independently of the tank 1. Therefore, the drainage container 6 is in a state in which the bottom surface portion 42 b is removed from the drainage container 6, and the state where the drainage container 6 is still fixed to the box 1 can be maintained.

In the state where the drain container 6 is attached to the box 1, the box locking protrusion 19a is set to support the drain container 6 at a length in the front-rear direction of the box locking protrusion 19a in front of the drain container center of gravity position 51. By adopting this structure, in a state where the drainage container 6 is mounted on the tank 1, the gravity center position 51 of the drainage container is located on the rear side of the drainage container support point 52 of the tank locking protrusion 19a. The drain container 6 is installed in a state where it is tilted forward with its own weight.

In addition, the drainage container 6 is a drainage container bottom surface 54 that is inclined downward so as to descend. The rear side of the bottom surface 54 of the drainage container is used to attach the tank 1 to a horizontal surface. The downward slope of the bottom side of the drainage container bottom 54 continues to the drainage capacity 器重 中心 位置 51。 The center of gravity position 51. In addition, the inclination system that descends from the rear side of the bottom surface 54 of the drainage container may continue to the rear side than the gravity center position 51 of the drainage container. When water accumulates in the drain container 6, the volume of water accumulated behind the center of gravity position 51 of the drain container is larger than the volume of water accumulated in front of the center of gravity 51 of the drain 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 a position rearward than 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 drain container 6 is mounted on the tank 1, the position of the center of gravity 55 of the drain container in a state where water is accumulated in the drain container 6 is located further behind the drain container support point 52 of the tank locking protrusion 19a. Therefore, the drain container 6 can be prevented from being installed in a state where the front part of the drain container 6 is inclined downward.

Moreover, since the joint 53 of the side surface of the tank 1 and the drainage container 6 does not incline even when the water is accumulated in the drainage container 6, the drainage container 6 can be installed without a gap, and commonality can be improved.

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

In addition, at the left and right end edges of the detachable bottom surface portion 42b, a wall prevention structure 42bb is provided to cover the joint between the box locking protrusion 19a of the box 1 and the drain container locking receiving portion 19b of the drain container 6. Thereby, it is possible to reduce that the dirt gradually accumulates at the joint between the box locking protrusion 19a and the drainage container locking receiving portion 19b due to continued use.

Next, the removal and attachment of the bottom surface portion 42b of the drainage container 6 will be described. Fig. 5 is a cross-sectional view showing a state in which the drain container and the bottom surface of the hand dryer of the first embodiment are connected. Fig. 6 is a sectional view showing a state before the drainage container and the bottom surface of the hand dryer of the first embodiment are connected to each other; Fig. 7 is a cross-sectional view showing a state in which the bottom surface portion of the hand dryer of the first embodiment has been removed from the drain container; Fig. 8 is a cross-sectional view showing a state in which the drain container and the bottom surface of the hand dryer of the first embodiment are connected. Fig. 9 is a cross-sectional view showing a state where a drain container is installed in a box of the hand dryer of the first embodiment. The detachable bottom surface portion 42b is detachably made as a pair of the drainage container 6 so as to be insertable and detachable from the rear side of the drainage container 6, and the drainage container 6 is installed above. That is, the lower surface portion of the barrier wall structure 42bb at the outer peripheral edge portion has a shape corresponding to the upper end portion 6 a of the drainage container 6. Therefore, the lower end portion of the outer peripheral portion of the bottom surface portion 42 b is fitted into the upper end portion 6 a of the drainage container 6 to fix the bottom surface portion 42 b to the drainage container 6. Therefore, the drainage container 6 and the detachable bottom surface portion 42b are connected and fixed by a fitting structure.

A drainage container fitting portion 71 is provided on the upper part of the inner wall on the left and right of the drainage container 6 to be fitted to the removable bottom surface portion 42b connected to the drainage container 6 from the rear side. The shape of the drainage container fitting portion 71 is that the length in the front-back direction is longer than the length in the vertical direction. That is, the size of the drainage container fitting portion 71 in the depth direction is longer than the size in the height direction. The lower portion on the rear side of the drainage container fitting portion 71 is chamfered at a corner portion to facilitate insertion of the removable bottom surface portion 42b. 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.

The detachable bottom surface fitting portion 72 is provided on the detachable bottom surface portion 42b. On the outer side surface of the bottom surface portion 42b. The detachable bottom surface fitting portion 72 is fitted into the drainage container fitting portion 71. The shape of the detachable bottom surface fitting portion 72 is longer in the front-back direction than in the vertical direction. That is, the size of the detachable bottom surface fitting portion 72 in the depth direction is longer than the size in the height direction. The upper part of the front side of the bottom surface fitting part 72 is detached to be chamfered for easy insertion into the drainage container 6. A detachable bottom surface fitting portion 76 is provided on the front side of the detachable bottom surface portion 42b. In this way, the drainage container 6 and the detachable bottom surface portion 42b include fitting portions that fit into each other at a plurality of positions in the front-rear direction.

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

When the bottom surface portion 42 b is removed, the bottom surface portion 42 b is separated from the drain container 6 by sliding the bottom surface portion 42 b toward the rear side of the drainage container 6 after removing the drainage container 6.

As described above, the detachable bottom surface portion 42 b has a structure that cannot be removed upward from the drainage container 6. Therefore, when the user uses the hand dryer 100, the airflow of the collision hand flows to the back water receiving portion 4a, and then flows along the back water receiving portion 4a, and flows into the gap between the fixed bottom surface portion 41b and the detachable bottom surface portion 42b. The drainage opening 5 formed by the divided portion prevents the bottom surface portion 42b of the disassembly unit from being exposed to wind. Floating up. In addition, since the removable bottom surface portion 42b covers the upper end portion of the drainage container 6, the water system accumulated in the drainage container 6 is difficult to scatter from the gap between the drainage container 6 and the removable bottom surface portion 42b.

On the rear side of the drainage container 6, a drainage container rear projection 77 protruding upward is provided. The upper surface of the rear-side protrusion 77 of the drainage container is circular or quadrangular. The drainage container 6 and the detachable bottom surface portion 42b are connected by the drainage container fitting portions 71 and 75 and the detachable bottom surface fitting portions 72 and 76. Therefore, when the drainage container 6 is mounted on the box 1, the drainage container rear portion The protruding portion 77 comes into contact with the back side of the fixed bottom surface portion 41b. That is, the detachable bottom surface portion 42 b is in contact with the case 1 when the drainage container 6 is attached to the case 1.

Therefore, when the drainage container 6 is inserted and removed, the bottom surface portion 42b can be inserted and removed without being caught on the back side of the fixed bottom surface portion 41b. In addition, since the drainage container rear protruding portion 77 is in contact with the back side of the fixed bottom surface portion 41b or has a structure with almost no gap, it can be smoothly inserted and removed without shaking. In addition, the mounting strength when the drainage container 6 is mounted increases. Therefore, even when the drain container 6 is full, the drain container 6 does not tilt. In addition, since only the rear portion 77 of the drainage container is in contact with each other, the friction when mounting the drainage container 6 is small, and the insertability is also good, and the mounting performance can be improved while ensuring the mounting strength. Therefore, the hand drying device 100 can improve the reliability of the connection between the drain container 6 and the box 1 which can be detached from the box 1.

When the removable bottom surface portion 42b and the drain container 6 are cleaned in the state of being mounted on the box 1, the removable bottom surface portion 42b and the drain container 6 are wiped with a wet cloth or the like, so that the drain container 6 acts under the load. By having the drainage container rear projection 77, there is no shaking in the drainage container 6, The container 6 is loaded under the load, and can be easily wiped and cleaned. Moreover, since the joint 53 of the side surface side of the tank 1 and the drainage container 6 does not shake because a load acts on the lower side of the drainage container 6 and does not shake by the drainage container rear protrusion part 77, a gap can be prevented.

Further, even when the drainage container 6 is suspended or pushed downward excessively, the front end side of the drainage container 6 can be prevented from tilting downward by providing the drainage container rear projection 77.

In addition, the drainage container rear protruding portion 77 has a shape in which the upper surface is circular or quadrangular and has a low height. Therefore, even when a downward load is applied to the drain container 6, no breakage or damage occurs. Moreover, the drainage container 6 is repeatedly inserted and removed, and the protrusion 77 on the rear portion of the drainage container is not damaged.

The hand dryer 100 of the first embodiment can be easily cleaned by removing the bottom surface portion 42b from the drain container 6 after removing the drain container 6 from the box 1. Therefore, when the water accumulated in the drain container 6 is discarded, the bottom surface portion 42b can be removed and removed from the drain container 6 to facilitate cleaning.

Next, the collection of water droplets in the hand dryer 100 will be described. When the user inserts his hand into the hand insertion portion 3, the high-pressure airflow generating device 8 operates, and the airflow is blown out from the nozzle hole 12. With this, the water droplets are blown off from the hand by the air current. The water droplets blown from the hand are received by the water receiving unit 4. As described above, the water receiving portion 4b on the bottom side of the water receiving portion 4 is in the overlapping area 43. The water droplets received by the water receiving portion 4 pass through the outer edge area 42ba on the rear side of the bottom surface portion 42b, and The drain opening 5 in the gap between the outer edge regions 41ba on the front side of the bottom surface portion 41b is fixed and guided to the drain container 6.

Therefore, it is possible to suppress the accumulation of dirt on the bottom surface side water receiving portion 4b. A divided portion that fixes the bottom surface portion 41b and the detachable bottom surface portion 42b. That is, by providing a gap between the fixed bottom surface portion 41b and the detachable bottom surface portion 42b and forming the drainage port 5, since the dirt in the divided portion is washed away by water droplets, the accumulation of dirt in the divided portion can be suppressed. The fixed bottom surface portion 41b and the detachable bottom surface portion 42b are not directly fixed. Since the structure is not fixed by the fitting structure of the fixed bottom surface portion 41b and the detachable bottom surface portion 42b, the shape of the bottom surface water receiving portion 4b It becomes simple, and cleaning performance improves.

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

Claims (3)

A hand-drying device, comprising: a box forming a recessed portion, the recessed portion being a hand inserting portion that is a processing space in which a hand can be inserted; and a nozzle for ejecting airflow downward from above the hand inserting portion; The water receiving unit includes a back side water receiving unit disposed behind the hand insertion portion, and a bottom side water receiving unit disposed below the hand insertion portion; and a drainage container attached to the bottom surface. The box is disassembled under the side water receiving part; the bottom side water receiving part has: a fixed bottom surface part integrally formed with the back side water receiving part; and a disassembly bottom surface part covering the upper end of the drainage container The drainage container and the dismountable bottom surface portion include a plurality of fitting portions which are fitted to each other in the front-rear direction; the disassembly bottom surface portion is from the rear side. It fits into this drainage container. For example, the hand drying device of the scope of patent application, wherein the removable bottom surface portion is in contact with the box when the drainage container is installed in the box. For example, the hand drying device of item 1 or 2 of the patent application scope, wherein the size of the box in the front-rear direction is 150 mm or less.