WO2019035200A1

WO2019035200A1 - Hand drying device

Info

Publication number: WO2019035200A1
Application number: PCT/JP2017/029558
Authority: WO
Inventors: 健司澤部; 繕弘深谷; 西村　茂樹; 晋也鈴村; 史恭三宅
Original assignee: 三菱電機株式会社
Priority date: 2017-08-17
Filing date: 2017-08-17
Publication date: 2019-02-21
Also published as: TWI671050B; JPWO2019035200A1; TW201912088A; CN110996734B; JP6877553B2; CN110996734A

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 present invention relates to a hand dryer that dries wet hands.

DESCRIPTION OF RELATED ART Conventionally, the hand-drying apparatus which dries a hand by applying an airflow to a wet hand is known. According to Patent Document 1, an air flow is blown against a hand inserted into a drying space which can be inserted and removed from the hand insertion opening opened toward the outside to wipe or dry the water adhering to the hand. A drying device is disclosed.

Japanese Patent Application Publication No. 2008-246055

In the hand dryer as disclosed in Patent Document 1, the volume on the front side of the drain container is increased to secure a space for storing water. Therefore, the gravity center position of the drain container is ahead of the position supported by the casing. For this reason, in the hand dryer as disclosed in Patent Document 1, the drain container is inclined downward by its own weight, a gap is generated between the casing and the drain container, and the appearance is impaired. Furthermore, when water is accumulated in the drain container, the center of gravity of the drain container moves forward than when the drain container is empty. Therefore, when water is accumulated in the drain container, the gap between the casing and the drain container is enlarged.

This invention is made in view of the above, Comprising: It aims at obtaining the hand dryer which prevented that a clearance gap arises between a removable drain container and a casing.

In order to solve the problems described above and to achieve the object, the present invention provides an air flow downward from above the hand insertion portion, a casing having a recess forming a hand insertion portion which is a space capable of inserting and removing a hand. A water receiving part having a nozzle for spouting, a back side water receiving part disposed behind the hand inserting part, and a bottom side water receiving part disposed below the hand inserting part, and a lower side of the bottom side water receiving part And a drain container attached to and detached from the casing. The casing is provided with a casing locking projection that supports the drain container. The center of gravity of the drain container is located at the same position in the front-rear direction as the point at which the casing locking protrusion supports the drain container, or at the rear of the point at which the casing locking protrusion supports the drain container.

The hand dryer according to the present invention has the effect of being able to prevent the formation of a gap between the removable drain container and the casing.

The perspective view which shows the external appearance of the hand dryer which concerns on Embodiment 1 of this invention The perspective view which shows the external appearance of the state which removed the attachment / detachment bottom part of the hand dryer concerning Embodiment 1 from the drain container Sectional drawing of the latching | locking part of the casing of the hand dryer concerning Embodiment 1 and a drain container Sectional drawing in the center part of the horizontal direction of the hand dryer which concerns on Embodiment 1 Sectional view of the locking portion between the drain container and the casing of the hand dryer according to the first embodiment In the hand drying apparatus according to the first embodiment, a cross-sectional view of a locking portion between the drain container and the casing in a state where water is accumulated in the drain container Sectional drawing which shows the state which connected the drain container of the hand dryer based on Embodiment 1, and the attachment / detachment bottom part. Sectional drawing which shows the state before connecting the drain container and the attachment / detachment bottom part of the hand dryer which concerns on Embodiment 1. Sectional drawing which shows the state which removed the attachment / detachment bottom part from the drain container of the hand dryer which concerns on Embodiment 1.

Below, the hand dryer which concerns on embodiment of this invention is demonstrated in detail based on drawing. The present invention is not limited by the embodiment.

Embodiment 1
FIG. 1 is a perspective view showing the appearance of a hand dryer according to a first embodiment of the present invention. FIG. 2 is a perspective view showing the appearance of the hand drying apparatus according to the first embodiment in a state where the mounting / dismounting bottom portion is removed from the drain container. FIG. 3 is a cross-sectional view of the locking portion between the casing and the drain container of the hand dryer according to the first embodiment. As shown in FIGS. 1 and 2, the casing 1 forming the outer shell of the hand dryer 100 has a hand insertion opening 2 formed on the front side and the side where the user who tries to dry his hand stands. A hand insertion unit 3 which is a processing space connected to the mouth 2 is provided. That is, the hand insertion portion 3 is a space inside the recess formed in the front lower portion of the casing 1 by opening the front surface and the both side surfaces. The user can insert and withdraw a hand in the hand insertion part 3 through the hand insertion port 2 of the front and both sides.

The water receiving part 4 is comprised by several components, and is the back side water receiving part 4a which is a back part which has the standing wall surface provided along the height direction of the hand dryer 100 behind the hand insertion part 3. And a bottom side water receiving portion 4 b which is a bottom portion 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 so as to form an L shape in a side cross-sectional view from the lower side to the rear of the hand insertion portion 3.

A waterproof wall 44 projecting forward is provided at the left and right end edges of the back side water receiving portion 4a. A waterproof wall 44 projecting upward is provided on the front and left and right end edges of the bottom side water receiving portion 4b. The waterproof wall 44 prevents the water droplets blown off from the hand and adhering to the back side water receiving portion 4a or the bottom side water receiving portion 4b from being scattered to the side or the front of the hand dryer 100.

The bottom surface side water receiving portion 4b covers the fixed bottom surface portion 41b configured integrally with the back surface side water receiving portion 4a, and the upper end portion 6a of the drain container 6, and the removable bottom surface portion 42b And. 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 42 b is in the form of a tray that can be attached to and detached from the drain container 6. The back side water receiving portion 4a and the fixed bottom portion 41b are integrally formed. The back side water receiving portion 4 a and the fixed bottom portion 41 b form a part of the casing 1.

The waterproof wall 44 includes a waterproof wall standing portion 44a provided near the center of the hand insertion portion 3 and a waterproof wall inclined portion 44b provided closer to the outer side of the main body than the waterproof wall standing portion 44a. The waterproof wall inclined portion 44 b provided on the waterproof wall 44 extending forward from the back side water receiving portion 4 a is inclined toward the back side as the inside of the hand insertion portion 3 is reached. The waterproof wall inclined portion 44 b provided on the waterproof wall 44 extending upward from the bottom side water receiving portion 4 b is inclined downward toward the center of the hand insertion portion 3. The waterproof wall inclined portion 44 b is provided over the entire length of the waterproof wall 44. Since the waterproof wall inclined portion 44 b is provided on the waterproof wall 44, the water droplets attached to the waterproof wall inclined portion 44 b flow down not to the outside of the casing 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 side water receiving portion 4b. Therefore, the water droplets which have fallen through the waterproof wall inclined portion 44b of the waterproof wall 44 extending forward from the back side water receiving portion 4a are transmitted along the waterproof wall standing portion 44a of the waterproof wall 44 extending upward from the bottom side water receiving portion 4b. It flows to the bottom side water receiving part 4b below the insertion part 3. The water droplets that have flowed to the bottom side water receiving portion 4 b are collected in the drain container 6 via the drainage port 5.

If the waterproof wall sloped portion 44b is not provided on the waterproof wall 44, the water droplets blown off from the hand remain on the waterproof wall 44, and the user to be used next inserts the hand into the hand insertion portion 3 and When the air flow is blown out, water droplets on the waterproof wall 44 may splash out of the casing 1. Since the hand dryer 100 is often installed at places used by many people such as commercial facilities and restaurants, the water droplets blown off from the hand quickly become the water receiving portion 4 after using the hand dryer 100. It is required that the fluid can be collected in the drain container 6.

The back side water receiving part 4 a is provided on the rear side of the hand insertion part 3. The bottom surface side water receiving portion 4b is a tray shape which is detachably provided and fixed bottom surface portion 41b which is extended from the lower portion of the back surface side water receiving portion 4a toward the front side of the hand dryer 100 and is fixed to the casing 1. It is divided into a detachable bottom portion 42b. The back side water receiving portion 4 a and the fixed bottom portion 41 b are integrally formed, and constitute a part of the casing 1.

The mounting / dismounting bottom surface portion 42b is inclined so as to lower toward the rear, and the drainage port 5 is provided at the lower end of the inclination. An outer edge area 42ba on the rear side of the removable bottom portion 42b and an outer edge area 41ba on the front side of the fixed bottom portion 41b overlap in the vertical direction to form an overlapping area 43. Further, in the overlapping area 43, the outer edge area 42ba is disposed above the outer edge area 41ba in a state where there is a gap between the outer edge area 41ba and the drainage port 5.

Below the water receiving portion 4, a drain container 6 for storing water dropped from the drainage port 5 is installed in a removable manner with respect to the casing 1. The drain container 6 is fixed to the casing 1 by the casing locking projection 19 a which is a part of the casing 1 being locked to the drain container locking receiving part 19 b which is a part of the drain container 6. The attachment and detachment of the drain container 6 to the casing 1 will be described later.

The surface of the water receiver 4 is coated with a hydrophilic material such as a silicon-based water repellent coating, a fluorine-based water repellent coating, or titanium oxide, and dirt adheres to the surface of the water receiver 4 It has been difficult. In addition, the surface of the water receiving portion 4 is impregnated with an antibacterial agent so that bacteria can not easily propagate on the surface of the water receiving portion 4.

FIG. 4 is a cross-sectional view of a lateral central portion of the hand dryer according to the first embodiment. Above the hand insertion portion 3, a nozzle 12 for blowing an air flow downward toward the hand insertion portion 3 is provided. A hand detection sensor 14 for detecting whether or not a hand is inserted in the hand insertion portion 3 is provided adjacent to the nozzle 12 on the back side of the nozzle 12.

A maintenance panel 20 in which an air inlet 9 is formed is disposed on the side surface of the casing 1 above the hand insertion portion 3. A filter (not shown) is integrally formed on the maintenance panel 20. The maintenance panel 20 has a louver shape in which an inclined surface 20a inclined toward the center side in the left-right direction is provided on a part of the surface as it goes from the rear side to the front side. An air inlet 9 is formed by a gap provided between the front edge of the inclined surface 20 a and the back surface of the maintenance panel 20.

Above the hand insertion portion 3, there is a box-like space surrounded by a base 7 and a casing 1 forming an outer shell on the back side of the hand dryer 100. The base 7 has a shell on the rear side at the top of the hand dryer 100 and is fixed to the rear side of the casing 1. In the space inside the box-like portion, a high-pressure air flow generating device 8 which is an air flow generating unit constituted by a DC brushless motor and a turbofan rotated by the DC brushless motor, and a hand detecting sensor 14 And a control circuit (not shown) for operating the high pressure air flow generator 8 according to the detection signal of A commutator motor or an induction motor may be used instead of the DC brushless motor.

Further, in the space inside the box-like portion, an intake air passage 10 communicating the intake side of the high pressure air flow generating device 8 with the air inlet 9, the exhaust side of the high pressure air flow generating device 8 and the nozzle 12 And an exhaust air passage 13 communicating the two. In the middle of the exhaust air passage 13 and upstream of the nozzle 12, a heater 15 is installed which heats and warms the air sent from the high-pressure air flow generating device 8.

Next, the configuration of the nozzle 12 and the exhaust air passage 13 will be described. The components that constitute the exhaust air passage 13 cover the exhaust side of the high pressure air flow generator 8 and prevent the high pressure air flow generated from the high pressure air flow generator 8 from leaking to the motor cover 31 that constitutes the chamber. Are linked through The connecting portion 32 is made of heat-resistant silicon resin in consideration of the heat generation of the heater 15 disposed in the exhaust air passage 13. The motor cover 31 and the exhaust air passage 13 are fixed by screws. Therefore, the parts of the heater 15 and the high pressure air flow generator 8 can be easily replaced. In addition, cleaning of the exhaust air passage 13 is also possible.

The exhaust air passage 13 is directed forward and downward so that the downstream side of the casing 1 is positioned forward, and is bent in the direction toward the rear so that the downstream side is positioned rearward on the way of the exhaust air passage 13. A nozzle 12 is installed at the lower end of the exhaust air passage 13. The air flow blown out from the nozzle 12 goes rearward in accordance with the extending direction of the exhaust air passage 13. The exhaust air passage 13 projects most forward among the components inside the casing 1 except the casing 1. Since the nozzle 12 is installed at the downstream end after the exhaust air passage 13 is bent backward, the front end of the connecting portion 32 and the nozzle 12 have substantially the same position in the front-rear direction.

The connecting portion 32 requires a space for arranging the sealing material and the fastening member. The dimension in the front-rear direction of the casing 1 is determined depending on the size of the exhaust air passage 13 that protrudes most forward in the casing 1. The distance between the front surface of the casing 1 and the outlet of the nozzle 12 can be minimized by the dimension in the front-rear direction of the casing 1 and the position of the nozzle 12, and the wind blown out from the nozzle 12 is directed backward. Since there are few water droplets blown forward and the nozzle 12 is near the front end of the casing 1, it is easy to use.

Assuming that the user is an adult, assuming that the distance between the outlet of the nozzle 12 and the back side water receiving portion 4a is 110 mm to 130 mm, the entire hand is hit by the wind when handed, and The hand does not touch the back side water receiving part 4a. When the distance between the front end of the casing 1 and the outlet of the nozzle 12 is 10 mm or less, the usability of the hand dryer 100 can be improved. Thereby, the distance between the nozzle 12 and the back side water receiving portion 4a can be increased without enlarging the main body of the hand dryer 100 as much as possible.

In the hand drying apparatus 100, the exhaust air passage 13 is disposed forward of the front end of the connecting portion 32, and the air flow blown out from the nozzle 12 is blown back from the same position as the front end of the connecting portion 32. The protrusion of the main body of the hand dryer 100 from the wall can be minimized while ensuring a space for inserting the. In addition, since the water droplets blown from the hand blow to the wall surface side of the back side water receiving portion 4a, the water receiving portion 4 in the lower part of the casing 1 can be reliably recovered. By setting the depth dimension of the casing 1 to 150 mm or less, the hand dryer 100 is easy to use, can reliably collect water droplets, and can be hygienic. Moreover, the protrusion from a wall can be made small by making the depth dimension of the casing 1 150 mm or less, and the hand dryer 100 can be installed in a narrow washroom or toilet space.

On the other hand, unlike the hand dryer 100, in the hand dryer in which the nozzle is disposed on the rear side of the front end of the connecting part, the distance between the front face of the casing and the nozzle outlet becomes longer Even if it is inserted, the wind does not hit the entire hand and the hand may not dry. Therefore, in order to dry the hand, the hand dryer in which the nozzle is disposed behind the front end of the connecting part must make the casing large, which makes it difficult to miniaturize the product.

In the hand dryer 100, a resin or metal filter (not shown) for removing dust in the air sucked into the high pressure air flow generator 8 is formed integrally with the maintenance panel 20 at a stage prior to the intake air passage 10. It is done. A filter (not shown) is removably attached to the inner side of the casing 1. The filter (not shown) can be attached and detached by inserting and removing the maintenance panel 20 to the side surface of the casing 1. The area of the filter (not shown) is larger than the cross-sectional area of the intake port 9 and the intake air passage 10 in the direction orthogonal to the ventilation direction. Note that the filter (not shown) may be a High Efficiency Particulate Air (HEPA) filter or an antibacterial filter.

The intake port 9 may be provided on the back of the casing 1. When the intake port 9 is provided on the back surface, the intake port 9 is disposed in a part of the base 7. By providing the air inlet 9 on the back side of the casing 1, the design of the appearance of the hand dryer 100 is improved.

An operation switch unit (not shown) is disposed on the upper surface of the casing 1. The operation switch unit is provided with a power switch (not shown) for turning on and off the control circuit, and a switching switch (not shown) for switching the strength of the wind speed of the air blown out from the nozzle 12 and turning on and off the heater 15 .

The operation switch unit includes a control board (not shown) on which a power switch and an operation switch (not shown) are mounted, and an operation switch cover (not shown) attached so as to cover the control board from above. The operation switch cover is made of a resin such as acrylonitrile butadiene styrene copolymer synthetic resin (Acrylonitrile Butadiene Styrene (ABS)) or polypropylene, and a push button (not shown) for operating the power switch and the operation switch is provided. It has a spring-like shape so that it can move up and down when the push button is pressed. A tact switch or a capacitance type switch is used as the operation switch.

The operation switch portion is fixed above the intake air passage 10. The casing 1 is provided with an upper surface opening 37 such that the operation switch portion appears on the upper surface of the casing 1 when the casing 1 is attached. In a state where the casing 1 is attached to the base 7, the operation switch portion is fitted in the upper surface opening portion 37. The casing 1 and the operation switch portion are fixed near the upper surface opening 37, and can be attached with almost no gap between the upper surface opening 37 and the operation switch portion. A screw may be used to fix the operation switch unit and the casing 1.

Further, the operation switch portion is covered with an operation portion panel 18 attached to the casing 1 so as to be openable and closable. The procedure for operating the operation switch unit will be described. First, the operation panel 18 is moved horizontally toward the outside in the left-right direction of the casing 1, and the moved operation panel 18 is rotated upward around the rotation axis to open the operation panel 18. The rotation axis of the operation panel 18 is movable in the left-right direction, and when the operation panel 18 is “closed”, no gap is generated between the casing 1 and the operation panel 18. There is. This can prevent the entry of dust and the entry of water without impairing the appearance. In addition, when opening the operation panel 18, it is necessary to horizontally move the operation panel 18 outward in the left-right direction of the casing 1. Therefore, a person other than the maintenance worker who is grasping the operation method performs the operation. It is difficult to open the control panel 18. Therefore, the hand dryer 100 can prevent tampering with the operation switch unit.

A label or a plastic film is attached to the upper surface of the operation switch cover, and power on / off switching of the wind speed of the wind blown out from the nozzle 12 and the state display explanation of the on / off of the heater 15 are displayed. Further, a lamp for displaying a state is provided on the upper surface of the operation switch cover. Since the hole formed in the operation switch cover is closed by a label or a plastic film to transmit the light of the lamp, it is possible to prevent the entry of dust and the entry of water.

Next, attachment and detachment of the drain container 6 to the casing 1 will be described. As shown in FIG.2 and FIG.3, a pair of casing latching protrusion part 19a which protruded ahead rather than the fixed bottom face part 41b of the bottom face side water receiving part 4b is provided in the lower part of the both sides | surfaces of the casing 1. . The casing 1 includes the casing locking projection 19 a, and the drain container 6 includes the drain container locking receiving portion 19 b into which the casing locking projection 19 a can be inserted. The drain container 6 is removable with respect to the casing 1 so as to be removable.

Therefore, at least a part of the fitting structure between drain casing 6 and casing 1 configured by casing locking projection 19a and drain receptacle locking receiver 19b is provided at the lower portion of casing 1, and fitting At least a part of the structure is located rearward of the drainage port 5 at the boundary between the fixed bottom surface portion 41b and the detachable bottom surface portion 42b. As a result, the water received by the water receiving unit 4 does not reach the fitting structure located behind the drainage port 5 which is the dividing unit, and the deposition of the dirt is suppressed.

When the drain container 6 is attached to the casing 1, the casing engagement protrusion 19 a of the casing 1 is fitted into the drain container engagement receiving portion 19 b of the drain container 6. Thereby, as shown in FIG. 3, the drain container 6 is fixed to the casing 1 and does not fall from the casing 1. And attachment or detachment of the drain container 6 to the casing 1 is independently performed with respect to the casing 1 irrespective of the attachment / detachment bottom part 42b of the bottom face side water receiving part 4b. Therefore, the drain container 6 can maintain the fixed state with respect to the casing 1 even when the mounting / dismounting bottom portion 42 b is removed from the drain container 6.

FIG. 5 is a cross-sectional view of the locking portion between the drain container and the casing of the hand dryer according to the first embodiment. FIG. 6 is a cross-sectional view of a locking portion between the drain container and the casing in a state where water is accumulated in the drain container in the hand dryer according to the first embodiment. When the drain container 6 is attached to the casing 1, the casing engagement protrusion 19 a has a length in the front-rear direction of the casing engagement protrusion 19 a so as to support the drain container 6 on the front side of the drain container center of gravity position 51. Is set. The casing locking projection 19a supports the drain container 6 at the drain container support point 52 located at the front end and the upper end. With the above structure, when the drain container 6 is attached to the casing 1, the drain container gravity center position 51 is on the rear side of the drain container support point 52 of the casing locking projection 19a, so the weight of the drain container 6 Thus, it is possible to prevent the drain container 6 from being attached in a state where the front is lowered. Further, in the state where the drain container 6 is attached to the casing 1, the gravity center position 51 of the drain container 6 is positioned forward of the center of the casing 1 in the front-rear direction.

Further, the drain container bottom surface 54 of the drain container 6 is inclined such that the rear side is lowered. The rear side of the drain container bottom surface 54 is a horizontal surface for attachment to the casing 1. The downward inclination of the rear side of the drain container bottom surface 54 continues to the drain container gravity center position 51. In addition, the inclination which the back side of drain container bottom face 54 falls may continue from the drain container gravity center position 51 to the back side. When water is accumulated in the drain container 6, the volume of water accumulated behind the drain container gravity center position 51 is larger than the volume of water accumulated forward of the drain container gravity center position 51. That is, the drain container gravity center position 55 in a state in which water is accumulated in the drain container 6 moves to the rear of the drain container gravity center position 51 in a state in which the drain container 6 is empty. With the above structure, when the drain container 6 is mounted on the casing 1, the drain container gravity center position 55 in a state where water is accumulated in the drain container 6 is from the drain container support point 52 of the casing engagement protrusion 19 a. Since it is behind, it can prevent attaching the drain container 6 in the state which the front part of the drain container 6 inclined downward.

Further, since the seam 53 between the casing 1 and the side surface of the drain container 6 does not tilt even when water is accumulated in the drain container 6, the drain container 6 can be attached without a gap.

On the other hand, when the drain container 6 is removed from the casing 1, the casing engagement projection 19 a of the casing 1 is pulled out from the drain container engagement receiving portion 19 b of the drain container 6 by pulling the drain container 6 forward. By pulling out the casing locking projection 19 a from the drain container locking receiving portion 19 b, the drain container 6 is removed from the casing 1.

Further, on the left and right end edges of the mounting / dismounting bottom surface portion 42b, a barrier construction 42bb is provided to cover a joint between the casing locking projection 19a of the casing 1 and the drain container locking receiver 19b of the drain container 6. There is. As a result, by continuing the use, it is possible to reduce that dirt is gradually accumulated at the joint between the casing locking projection 19a and the drain container locking receiving portion 19b.

Next, the mounting and demounting of the mounting and demounting bottom portion 42b to and from the drain container 6 will be described. FIG. 7 is a cross-sectional view showing a state in which the drain container and the mounting / dismounting bottom portion of the hand dryer according to Embodiment 1 are connected. FIG. 8 is a cross-sectional view showing a state before the drain container and the mounting / dismounting bottom portion of the hand dryer according to the first embodiment are connected. FIG. 9 is a cross-sectional view showing the drain container of the hand dryer according to Embodiment 1 from which the mounting / dismounting bottom portion is removed. The detachable bottom portion 42 b is independently detachable with respect to the drain container 6, can be inserted and removed from the rear side of the drain container 6, and is mounted above the drain container 6. That is, the lower surface portion in the outer peripheral edge portion of the barrier construction 42bb has a shape corresponding to the upper end portion 6a of the drain container 6. As a result, the lower surface portion of the outer peripheral edge portion of the removable bottom surface portion 42 b is fitted to the upper end portion 6 a of the drain container 6, whereby the removable bottom surface portion 42 b is fixed on the drain container 6. Therefore, the drain container 6 and the detachable bottom portion 42b are connected by the fitting structure and can be fixed.

The mounting / detaching bottom surface portion 42b is detachably attachable to the drain container 6 in any state where the drain container 6 is attached to the casing 1 or in a state where the drain container 6 is detached from the casing 1 . Therefore, as shown in FIG. 9, in the state where the drain container 6 is attached to the casing 1, the detachable bottom portion 42 b can be removed from the drain container 6 alone.

Further, on the upper left and right inner walls of the drain container 6, there is provided a drain container fitting portion 71 which is fitted with the detachable bottom surface portion 42b connected to the drain container 6 from the rear side. 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 vertical direction. That is, in the drain container fitting portion 71, the dimension 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 corners so that the detachable bottom surface portion 42b can be easily inserted. In addition, a drain container fitting portion 75 is provided on the upper inner wall of the front side of the drain container 6.

A detachable bottom surface fitting portion 72 is provided on the outer side surface of the detachable bottom surface portion 42b in the detachable bottom surface portion 42b. The detachable bottom surface fitting portion 72 fits with the drain container fitting portion 71. As for the shape of the detachable bottom portion fitting portion 72, the length in the front-rear direction is longer than that in the vertical direction. That is, the dimension in the depth direction of the detachable bottom surface fitting portion 72 is longer than the dimension in the height direction. An upper portion on the front side of the detachable bottom portion fitting portion 72 is chamfered at a corner so as to be easily inserted into the drain container 6. Further, a detachable bottom surface fitting portion 76 is provided on the front side of the detachable bottom surface portion 42b. Thus, the drain container 6 and the attachment / detachment bottom surface portion 42b are provided with the fitting portions to be fitted to each other.

When connecting the drain container 6 and the mounting / dismounting bottom surface portion 42 b, the mounting / dismounting bottom surface portion 42 b is slid from the rear side to the front side of the drain container 6 to be 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 fitting portion 72 are the upper side of the drain container fitting portion 71 and the lower side of the detachable bottom portion fitted portion 72 It comes into contact and is placed without rattling. The drain container fitting portion 75 and the detachable bottom surface fitting portion 76 are disposed without rattling, with the drain container fitting portion 75 at the upper side and the detachable bottom surface fitting portion 76 at the lower side.

When removing the mounting / dismounting bottom surface portion 42b, the mounting / dismounting bottom surface portion 42b is separated from the drain container 6 by sliding the mounting / dismounting bottom surface portion 42b to the rear side of the drain container 6 after removing the drain container 6.

As described above, the mounting / dismounting bottom surface portion 42 b is structured such that it can not be removed upward from the drain container 6. Therefore, when the user uses the hand drying apparatus 100, the jet that collides with the hand is directed to the back side water receiving portion 4a, and along the back side water receiving portion 4a, the fixed bottom portion 41b and the detachable bottom portion 42b By flowing into the drainage port 5 configured to have a gap in the divided portion, the removable bottom surface portion 42 b is prevented from rising upward due to the wind pressure.

On the rear side of the drain container 6, a drain container protrusion 77 that protrudes upward is provided. The upper surface of the drain container protrusion 77 is circular or square. The drain container 6 and the mounting / dismounting bottom surface portion 42 b are connected by the drain container

fitting portions

71, 75 and the mounting / dismounting bottom surface

portion fitting portions

72, 76. Therefore, with the drain container 6 attached to the casing 1, the drain container protrusion The portion 77 comes in contact with the back side of the fixed bottom portion 41b. That is, when the drain container 6 is mounted on the casing 1, the mounting / dismounting bottom surface portion 42 b contacts the casing 1.

Thus, when the drain container 6 is inserted and removed, the removable 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 drain container protrusion 77 contacts the back side of the fixed bottom surface portion 41b or has a structure with almost no gap, smooth insertion and removal can be achieved without rattling. Moreover, since the mounting strength at the time of mounting | wearing of the drain container 6 increases, even when the drain container 6 is full of water, the drain container 6 does not incline. In addition, since only the drain container projection 77 is in contact, the friction at the time of mounting the drain container 6 is small and the insertability is good, so that the mounting property can be improved while securing the mounting strength.

Moreover, when cleaning with the detachable bottom surface 42b and the drain container 6 attached to the casing 1, the drain container 6 is loaded downward by wiping the detachable bottom surface 42b and the drain container 6 with a wet cloth or the like. Is added. The presence of the drain container projection 77 makes it possible to wipe and clean the drain container 6 without any load even if a load is applied to the drain container 6 downward. Further, the seam 53 on the side of the casing 1 and the drain container 6 can be prevented from generating a gap because the drain container protrusion 77 does not shake even if a load is applied below the drain container 6 It becomes possible.

Also, even when hanging on the drain container 6 or forcibly pressing the drain container 6 downward, by providing the drain container projection 77, it is possible to prevent the front end side of the drain container 6 from being inclined downward. Become.

In addition, since the drain container protrusion 77 has a circular or square upper surface and a low height, it does not break or break even when the drain container 6 is loaded downward. In addition, the drain container protrusion 77 is not damaged by the repetition of the insertion and removal of the drain container 6.

In addition, the hand drying apparatus 100 according to the first embodiment can easily remove and clean the removable bottom portion 42b from the drain container 6 after the drain container 6 is removed from the casing 1. Therefore, when the water accumulated in the drain container 6 is discarded, the detachable bottom surface portion 42b can be removed from the drain container 6 and cleaned easily.

Next, collection of water droplets in the hand dryer 100 will be described. When the user inserts a hand into the hand insertion portion 3, the high pressure air flow generator 8 is activated, and an air flow is blown out from the nozzle 12. As a result, the air flow blows off the water droplets from the hand. The water droplets blown off from the hand are received by the water receiver 4. As described above, in the bottom surface side water receiving portion 4b of the water receiving portion 4, in the overlapping region 43, the outer edge region 42ba on the rear side in the detachable bottom surface portion 42b and the outer edge region 41ba on the front side in the fixed bottom surface portion 41b. A drainage port 5 which is a gap between the two is provided.

The water droplets received by the water receiving unit 4 are sent to the drainage port 5 and collected in the drain container 6 disposed below the water receiving unit 4. The water droplets received by the mounting / dismounting bottom portion 42 b flow rearward, reach the drain 5, and drip from the drain 5 into the drain container 6. On the other hand, the water droplets received by the fixed bottom surface portion 41 b flow forward, reach the drainage port 5, and drip from the drainage port 5 into the drain container 6. Further, the water droplets received by the back side water receiving portion 4 a flow to the fixed bottom surface portion 41 b, flow forward to the fixed bottom surface portion 41 b, reach the drainage port 5, and drip from the drainage port 5 to the drain container 6. As described above, the water droplets received by the water receiving portion 4 pass through the drainage port 5 which is a gap provided in the divided portion between the fixed bottom surface portion 41b and the detachable bottom surface portion 42b in the bottom surface side water receiving portion 4b. The water droplets received in 4 are led to the drain container 6.

As a result, it is possible to suppress the deposition of dirt on the divided portions of the fixed bottom surface portion 41b and the detachable bottom surface portion 42b in the bottom surface side water receiving portion 4b. That is, by providing a gap in the division between the fixed bottom surface portion 41b and the mounting / dismounting bottom surface portion 42b and using the drainage port 5, dirt on the division portion is flowed by water droplets, so that deposition of dirt on the division portion can be suppressed. . Further, since the fixed bottom surface portion 41b and the detachable bottom surface portion 42b are not directly fixed but are not fixed by the fixed bottom surface portion 41b and the detachable bottom surface portion 42b by the fitting structure, the bottom surface side water receiving portion 4b The shape is simplified and the cleanability is improved.

Further, in the process in which the water droplets received by the water receiving unit 4 flow to the drain container 6, the dirt is easily accumulated in the bottom side water receiving unit 4b. The bottom side water receiving part 4b is exposed mainly to the user's eyes, and when the frequency of cleaning is low, the appearance is impaired.

Here, the mounting / dismounting bottom surface portion 42 b is not configured to be mounted to and detached from the casing 1, but as described above, is configured to be separately mounted and detached on the drain container 6. As a result, the mounting and demounting surface portion 42b can be easily removed alone without using a tool. Therefore, the hand drying apparatus 100 can easily remove the removable bottom portion 42b which is prone to accumulation of dirt and must be cleaned frequently, so that the sanitation and cleanliness of the water receiving portion 4 can be maintained. Also, the cleanability and maintainability of the water receiving portion 4 is improved. In addition, the same effect can be acquired even if it is a nail | claw structure as the fixing method of the attachment / detachment bottom face part 42b to the drain container 6 other than fitting structure.

Moreover, even if the drain container 6 is attached to the casing 1, the fixed bottom surface portion 41 b can be easily cleaned by removing the mounting / dismounting bottom surface portion 42 b. Therefore, when the hand is dried, the water droplets spattered adhere to the fixed bottom surface portion 41b, and while the use is continued, dirt gradually adheres, but the fixed bottom surface portion 41b can be easily cleaned.

Further, the mounting / dismounting bottom surface portion 42 b is supported by the drain container 6 and is not fixed to the fixed bottom surface portion 41 b. And the drain container 6 is directly supported by the casing 1 as mentioned above. Thereby, even when the weight of water accumulated in the drain container 6 increases, no direct force is applied to the divided portion between the mounting and demounting bottom portion 42b and the fixed bottom portion 41b, so the structure of the divided portion can be simplified. The cleaning performance of the water receiver 4 can be improved.

In addition, the detachable bottom surface 42b and the fixed bottom surface 41b can be configured in a simple shape with less unevenness by having a structure in which the detachable bottom surface 42b is not engaged with the fixed bottom surface 41b, so the bottom side water receiving portion Cleaning of 4b becomes easy.

Further, the hand dryer 100 has a structure in which the detachable bottom surface 42 b where dirt is easily accumulated is locked not to the casing 1 but to the drain container 6. Then, a fitting structure 11 for fitting and locking the detachable bottom surface 42b to the drain container 6 is provided on the lower side of the outer peripheral edge of the detachable bottom surface 42b. That is, as shown in FIG. 1, in the hand dryer 100, the fitting structure 11 faces the exterior surface of the hand dryer 100. With this configuration, in the hand dryer 100, the drop of water drops from the fitting structure 11 which is the seam of the parts in which the dirt gradually comes along by continuing the use, that is, the seam between the detachable bottom surface 42b and the drain container 6. It can be arranged outside the area facing the direct blowing hand insertion part 3. Therefore, since the water received by bottom side water receiving part 4b does not reach fitting structure part 11, hand dryer 100 can control that dirt accumulates on fitting structure part 11, and cleaning frequency is low. , It becomes possible to maintain the beauty around the bottom side water receiving part 4b.

In addition, the fitting structure 11 for locking the detachable bottom surface 42b to which dirt gradually adheres by continuing to be used by the detachable bottom surface 42b disposed above the drain container 6 is viewed from above the user. It can cover up the eyes. This makes it possible to reduce the unpleasant feeling that the user does not want to insert a hand into the hand insertion portion 3 due to the appearance of the periphery of the bottom side water receiving portion 4b.

Moreover, the water receiving part 4 is comprised by two components of the back surface side water receiving part 4a and the bottom surface side water receiving part 4b, and the division part is made into one place. In general, the divisions of parts are prone to dirt accumulation. However, since the water receiving portion 4 has only one divided portion, it is possible to minimize the deposition position of the dirt.

Moreover, the waterproof wall 44 which protruded in the front or upper direction is provided in the left-right direction of the water receiving part 4, and the front edge part. And the fitting structure of the drain container 6 and the casing 1 is provided at the lower part of the waterproof wall 44 at least. Accordingly, the water droplets received by the waterproof wall 44 promptly flow to the detachable bottom surface portion 42 b or the fixed bottom surface portion 41 b and are led to the drain container 6 through the drainage port 5. As a result, it is difficult for the water droplets received by the waterproof wall 44 to reach the fitting structure of the drain container 6 and the casing 1, and it is possible to suppress the accumulation of dirt on the fitting structure.

As described above, the hand dryer 100 according to the first embodiment can easily remove only the bottom surface 42b of the bottom side water receiving portion 4b of the water receiving portion 4 where dirt is most accumulated and can be easily cleaned. It is possible. Moreover, even if the drain container 6 is attached to the casing 1, the fixed bottom surface portion 41 b can be easily cleaned by removing the mounting / dismounting bottom surface portion 42 b. As a result, the hand dryer 100 can maintain the hygiene and cleanliness of the water receiver 4 which must be cleaned frequently, and the cleanability and maintainability of the water receiver 4 can be improved.

Therefore, according to the hand drying apparatus 100 concerning this Embodiment 1, the effect that the cleaning property of the removable water receiving part 4 improves is acquired.

The configuration shown in the above embodiment shows an example of the contents of the present invention, and can be combined with another known technique, and one of the configurations is possible within the scope of the present invention. Parts can be omitted or changed.

DESCRIPTION OF SYMBOLS 1 casing, 2 hand insertion port, 3 hand insertion part, 4 water receiving part, 4a back side water receiving part, 4b bottom side water receiving part, 5 drainage port, 6 drain container, 6a upper end part, 7 base, 8 high pressure air Flow generation device, 9 intake port, 10 intake air path, 11 fitting structure, 12 nozzles, 13 exhaust air path, 14 hand detection sensor, 15 heater, 18 operation panel, 19a casing locking projection, 19b drain container Lock receiving portion, 20 maintenance panel, 20a inclined surface, 31 motor cover, 32 connecting portion, 37 upper surface opening portion, 41b fixed bottom portion, 41ba, 42ba outer edge region, 42b removable bottom portion, 42bb barrier wall structure, 43 overlapping region, 44 waterproof wall, 44a waterproof wall stand, 44b waterproof wall slope, 51, 55 drain container center of gravity position, 2 Drain container support point, 53 seam, 54 drainage container bottom, 71 and 75 drain the container engaging portion, 72, 76 detachable bottom fitting portion, 77 drainage container projections, 100 hand drying device.

Claims

A casing having a concave portion forming a hand insertion portion which is a space in which the hands can be inserted and removed;
A nozzle for ejecting an air flow downward from above the hand insertion portion;
A water receiving part having a back side water receiving part disposed behind the hand inserting part and a bottom side water receiving part disposed below the hand inserting part;
And a drain container detachably attached to the casing below the bottom surface side water receiving portion,
The casing is provided with a casing locking projection for supporting the drain container,
The center of gravity of the drain container is located at the same position in the front-rear direction as the point at which the casing locking protrusion supports the drain container, or at the rear of the point at which the casing locking protrusion supports the drain container. Hand dryer characterized by.
The drain vessel has a slope on the bottom side which is lowered on the rear side,
The hand dryer according to claim 1, wherein the center of gravity of the drain container in which water is collected is moved rearward of the center of gravity of the empty drain container.
The hand dryer according to claim 1 or 2, wherein the center of gravity of the drain container is positioned forward of the center in the front-rear direction of the casing in a state where the drain container is mounted on the casing.
The hand dryer according to any one of claims 1 to 3, wherein a depth of the casing is 150 mm or less.