JP6877553B2 - Hand drying device - Google Patents

Description

The present invention relates to a hand drying device that dries wet hands.

Conventionally, there is known a hand drying device that dries a hand by applying an air stream to a wet hand. Patent Document 1 describes a hand that blows an air stream against a hand inserted into a dry space where the hand can be inserted and removed from a hand insertion port that opens outward to wipe off or dry the moisture adhering to the hand. The drying device is disclosed.

Japanese Unexamined Patent Publication No. 2008-246055

In the hand drying device as disclosed in Patent Document 1, the capacity on the front side of the drain container is increased to secure a space for storing water. Therefore, the position of the center of gravity of the drain container is in front of the position supported by the casing. Therefore, in the hand drying device as disclosed in Patent Document 1, the drain container tilts forward due to its own weight, a gap is generated between the casing and the drain container, and the aesthetic appearance is impaired. Further, when water collects in the drain container, the position of the center of gravity of the drain container moves forward compared to the case where the drain container is empty. Therefore, when water collects in the drain container, the gap between the casing and the drain container has expanded.

The present invention has been made in view of the above, and an object of the present invention is to obtain a hand drying device that prevents a gap from being formed between a removable drain container and a casing.

In order to solve the above-mentioned problems and achieve the object, the present invention presents a casing having a recess forming a hand insertion portion, which is a space in which a hand can be inserted and removed, and an air flow downward from above the hand insertion portion. A water receiving part having a nozzle to eject, a back side water receiving part arranged behind the hand insertion part, a bottom side water receiving part arranged below the hand insertion part, and a lower part of the bottom side water receiving part. It has a drain container that can be attached to and detached from the casing. The casing includes 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 or behind the point where the casing locking protrusion supports the drain container and the point where the casing locking protrusion supports the drain container.

The hand drying device according to the present invention has an effect that it is possible to prevent a gap from being formed between the removable drain container and the casing.

A perspective view showing the appearance of the hand drying device according to the first embodiment of the present invention. A perspective view showing an appearance in a state where the detachable bottom surface portion of the hand drying device according to the first embodiment is removed from the drain container. Cross-sectional view of the locking portion between the casing of the hand drying device and the drain container according to the first embodiment. Cross-sectional view of the hand drying device according to the first embodiment in the central portion in the lateral direction. Cross-sectional view of the locking portion between the drain container and the casing of the hand drying device 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. A cross-sectional view showing a state in which the drain container of the hand drying device according to the first embodiment and the detachable bottom surface portion are connected. A cross-sectional view showing a state before connecting the drain container of the hand drying device according to the first embodiment and the detachable bottom surface portion. Sectional drawing which shows the state which the detachable bottom part was removed from the drain container of the hand drying apparatus which concerns on Embodiment 1.

Hereinafter, the hand drying apparatus according to the embodiment of the present invention will be described in detail with reference to the drawings. The present invention is not limited to this embodiment.

Embodiment 1.
FIG. 1 is a perspective view showing the appearance of the hand drying device according to the first embodiment of the present invention. FIG. 2 is a perspective view showing the appearance of the detachable bottom surface of the hand drying device according to the first embodiment in a state where the detachable bottom surface portion is removed from the drain container. FIG. 3 is a cross-sectional view of a locking portion between the casing of the hand drying device and the drain container according to the first embodiment. As shown in FIGS. 1 and 2, the casing 1 forming the outer shell of the hand drying device 100 has hand insertion openings 2 formed on the front side and the side surface on which the user who is trying to dry his / her hands stands, and is manually inserted. It is provided with a hand insertion portion 3 which is a processing space connected to the mouth 2. That is, the manual insertion portion 3 is a space inside a recess formed in the lower part of the front surface of the casing 1 by opening the front surface and both side surfaces. The user can insert and remove his / her hand into the hand insertion portion 3 through the hand insertion openings 2 on the front surface and both side surfaces.

The water receiving portion 4 is composed of a plurality of parts, and is a back surface portion having a vertical wall surface provided behind the hand inserting portion 3 along the height direction of the hand drying device 100. And a bottom surface side water receiving portion 4b, which is a bottom surface portion provided below the hand insertion portion 3. The back side water receiving portion 4a and the bottom side water receiving portion 4b are collectively referred to as a water receiving portion 4. The water receiving portion 4 is provided so as to form an L shape in a side sectional view from below to the rear of the hand insertion portion 3.

A waterproof wall 44 projecting forward is provided at the left and right edge portions of the back side water receiving portion 4a. A waterproof wall 44 projecting upward is provided at the front and left and right edge portions of the bottom surface side water receiving portion 4b. The waterproof wall 44 prevents water droplets that have been blown off from the hand and adhered to the back surface side water receiving portion 4a or the bottom surface side water receiving portion 4b from scattering to the side or the front of the hand drying device 100.

The bottom surface side water receiving portion 4b covers the fixed bottom surface portion 41b integrally formed with the back surface side water receiving portion 4a and the upper end portion 6a of the drain container 6, and is detachable from the bottom portion 42b to and from the casing 1 together with the drain container 6. And have. The fixed bottom surface portion 41b is connected to the lower portion of the back surface side water receiving portion 4a and extends toward the front side. The removable bottom surface portion 42b has a tray shape that can be attached to and detached from the drain container 6. The back side water receiving portion 4a and the fixed bottom surface portion 41b are integrally formed. Further, the back surface side water receiving portion 4a and the fixed bottom surface portion 41b form a part of the casing 1.

The waterproof wall 44 includes a waterproof wall standing portion 44a provided near the center of the manual insertion portion 3, and a waterproof wall inclined portion 44b provided closer to the outside of the main body than the waterproof wall standing portion 44a. The waterproof wall inclined portion 44b provided on the waterproof wall 44 extending forward from the back side water receiving portion 4a is inclined toward the back side toward the inside of the manual insertion portion 3. The waterproof wall inclined portion 44b provided on the waterproof wall 44 extending upward from the bottom side water receiving portion 4b is inclined downward toward the center side of the manual insertion portion 3. The waterproof wall inclined portion 44b is provided over the entire length of the waterproof wall 44. Since the waterproof wall inclined portion 44b is provided with the waterproof wall inclined portion 44b, the water droplets adhering to the waterproof wall inclined portion 44b flow down to the hand insertion portion 3 side instead of the outside of the casing 1.

The water droplets adhering to the waterproof wall inclined portion 44b of the waterproof wall 44 extending forward from the back side water receiving portion 4a move downward due to its 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 that have flowed down the waterproof wall inclined portion 44b of the waterproof wall 44 extending forward from the water receiving portion 4a on the back surface side travel along the waterproof wall standing portion 44a of the waterproof wall 44 extending upward from the water receiving portion 4b on the bottom surface side. It flows to the bottom surface side water receiving portion 4b below the insertion portion 3. The water droplets that have flowed to the bottom side water receiving portion 4b collect in the drain container 6 via the drain port 5.

If the waterproof wall 44 is not provided with the waterproof wall inclined portion 44b, the water droplets blown off from the hand stay on the waterproof wall 44, and the next user inserts his / her hand into the hand insertion portion 3 from the nozzle 12. When the air flow is blown out, water droplets on the waterproof wall 44 may be scattered outside the casing 1. Since the hand drying device 100 is often installed in a place used by a large number of people such as a commercial facility and a restaurant, water droplets blown off from the hand immediately press the water receiving unit 4 after using the hand drying device 100. It is required that it flows and can be collected in the drain container 6.

The back side water receiving portion 4a is provided on the rear side of the manual insertion portion 3. The bottom surface side water receiving portion 4b has a tray shape that is detachably provided with a fixed bottom surface portion 41b that extends from the lower part of the back surface side water receiving portion 4a toward the front side of the hand drying device 100 and is fixed to the casing 1. It is divided into a detachable bottom surface portion 42b. The back side water receiving portion 4a and the fixed bottom surface portion 41b are integrally formed and form a part of the casing 1.

The detachable bottom surface portion 42b is inclined so as to be lowered toward the rear, and a drain port 5 is provided at the lower end of the inclination. The rear outer edge region 42ba of the detachable bottom surface portion 42b and the front outer edge region 41ba of the fixed bottom surface portion 41b overlap each other vertically to form an overlapping region 43. Further, in the overlapping region 43, the outer edge region 42ba is arranged above the outer edge region 41ba with a gap serving as a drainage port 5 from the outer edge region 41ba.

Below the water receiving portion 4, a drain container 6 for storing water dripping from the drain port 5 is installed so as to be freely inserted into and removed from the casing 1. The drain container 6 is fixed to the casing 1 by locking the casing locking protrusion 19a, which is a part of the casing 1, to the drain container locking receiving portion 19b, which is a part of the drain container 6. The attachment / detachment of the drain container 6 to / from the casing 1 will be described later.

The surface of the water receiving portion 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 receiving portion 4. It is made difficult. Further, the surface of the water receiving portion 4 is impregnated with an antibacterial agent to prevent bacteria from growing on the surface of the water receiving portion 4.

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

A maintenance panel 20 on which an intake port 9 is formed is arranged on the side surface of the casing 1 above the manual 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 that inclines toward the center side in the left-right direction is provided on a part of the surface from the back side to the front side. The intake port 9 is formed by a gap provided between the front edge portion of the inclined surface 20a and the back surface of the maintenance panel 20.

Above the hand insertion portion 3, there is a space in which the base 7 forming the outer shell on the back side of the hand drying device 100 and the casing 1 form a box shape and surround the base 7. The base 7 forms an outer shell on the back side in the upper part of the hand drying device 100, and is fixed to the back side of the casing 1. In the space inside the box-shaped part, a high-pressure air flow generator 8 which is an air flow generator composed of a DC brushless motor and a turbo fan rotated by the DC brushless motor, and a hand of a hand detection sensor 14 A control circuit (not shown) for operating the high-pressure air flow generator 8 in response to the detection signal of the above is incorporated. A commutator motor or an induction motor may be used instead of the DC brushless motor.

Further, in the space inside the box-shaped portion, an intake air passage 10 that communicates the intake side of the high-pressure air flow generator 8 and the intake port 9 and an exhaust side of the high-pressure air flow generator 8 and a nozzle 12 are provided. Is provided with an exhaust air passage 13 that communicates with the air. A heater 15 is installed in the middle of the exhaust air passage 13 and upstream of the nozzle 12 to heat the air sent from the high-pressure air flow generator 8 to warm the air.

Next, the configuration of the nozzle 12 and the exhaust air passage 13 will be described. The parts constituting the exhaust air passage 13 cover the exhaust side of the high-pressure air flow generator 8, and the connecting portion 32 for preventing the leakage of the high-pressure air flow generated from the high-pressure air flow generator 8 to the motor cover 31 constituting the chamber. It is connected via. The connecting portion 32 is made of heat-resistant silicone resin in consideration of heat generation of the heater 15 arranged in the exhaust air passage 13. The motor cover 31 and the exhaust air passage 13 are fixed with screws. Therefore, the parts of the heater 15 and the high pressure air flow generator 8 can be easily replaced. It is also possible to clean the inside of the exhaust air passage 13.

The exhaust air passage 13 is bent diagonally forward and downward so that the downstream side of the casing 1 is located in the front, and is bent in the direction toward the rear so that the downstream side is located in the rear in the middle of the exhaust air passage 13. A nozzle 12 is installed at the lower end of the exhaust air passage 13. The airflow blown out from the nozzle 12 goes backward according to the extending direction of the exhaust air passage 13. The exhaust air passage 13 is located at the frontmost position among the parts inside the casing 1 excluding the casing 1. Since the nozzle 12 is installed at the downstream end after the exhaust air passage 13 is bent rearward, the front end of the connecting portion 32 and the nozzle 12 are substantially at 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 located at the frontmost inside 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 dimensions of the casing 1 in the front-rear direction and the position of the nozzle 12, and the wind blown from the nozzle 12 goes backward, so that the wind blows from the nozzle 12 is directed from the hand. 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 water receiving portion 4a on the back side is 110 mm to 130 mm, the wind hits the entire hand when the hand is rubbed, and The back side water receiving portion 4a is not touched by hands. Further, 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 drying device 100 can be improved. As a result, the distance between the nozzle 12 and the water receiving portion 4a on the back surface side can be increased without making the main body of the hand drying device 100 as large as possible.

In the hand drying device 100, the exhaust air passage 13 is arranged in front of the front end of the connecting portion 32, and the airflow blown from the nozzle 12 is blown to the rear side from the same position as the front end of the connecting portion 32. It is possible to minimize the protrusion of the main body of the hand drying device 100 from the wall while ensuring a space for inserting the hand drying device 100. Further, since the water droplets blown off from the hand are blown off to the wall surface side of the back side water receiving portion 4a, the water droplets can be reliably collected by the water receiving portion 4 at the lower part of the casing 1. By setting the depth dimension of the casing 1 to 150 mm or less, the hand drying device 100 is easy to use, can reliably collect water droplets, and can be made hygienic. Further, the hand drying device 100 can be installed in a narrow washroom or toilet space by reducing the protrusion from the wall by setting the depth dimension of the casing 1 to 150 mm or less.

On the other hand, unlike the hand drying device 100, in the hand drying device in which the nozzle is arranged on the rear side of the front end of the connecting portion, the distance between the front surface of the casing and the outlet of the nozzle becomes long, and the hand is inserted into the hand insertion portion. Even if you put it in, the wind does not hit the whole hand and the hand may not dry. Therefore, in the hand drying device in which the nozzle is arranged on the rear side of the front end of the connecting portion, the casing must be enlarged in order to allow the hands to dry, and it is difficult to miniaturize the product.

Further, in the hand drying device 100, a resin or metal filter (not shown) for removing dust in the air sucked into the high-pressure air flow generator 8 is integrally formed with the maintenance panel 20 in front of the intake air passage 10. Has been done. A filter (not shown) is detachably attached to the inner side of the casing 1. The filter (not shown) can be attached / detached by inserting / removing the maintenance panel 20 to / from 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. The filter (not shown) may be a HEPA (High Efficiency Particulate Air) filter or an antibacterial filter.

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

An operation switch unit (not shown) is arranged on the upper surface of the casing 1. The operation switch unit is provided with a power switch (not shown) for turning on / off the energization of the control circuit, and a changeover switch (not shown) for switching the strength of the wind speed of the wind blown from the nozzle 12 and turning on / 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 is provided with a push button (not shown) for operating the power switch and the operation switch, and the push button is manually operated. It has a springy shape so that it can move up and down when the push button is pressed. A tactile switch or a capacitance type switch is used as the operation switch.

The operation switch unit is fixed above the intake air passage 10. The casing 1 is provided with an upper surface opening 37 so that the operation switch portion appears on the upper surface of the casing 1 when the casing 1 is attached. When the casing 1 is attached to the base 7, the operation switch portion is fitted into the upper surface opening 37. The casing 1 and the operation switch portion are fixed in the vicinity of 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 portion 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 section will be described. First, the operation unit panel 18 is horizontally moved toward the outside in the left-right direction of the casing 1, and the operated operation unit panel 18 after movement is rotated upward around the rotation axis to open the operation unit panel 18. The rotation axis of the operation unit panel 18 can be moved in the left-right direction, and when the operation unit panel 18 is "closed", there is no gap between the casing 1 and the operation unit panel 18. There is. As a result, it is possible to prevent the ingress of dust and water without spoiling the appearance. Further, when opening the operation unit panel 18, it is necessary to move the operation unit panel 18 horizontally toward the outside in the left-right direction of the casing 1, so that a person other than a maintenance worker who understands the operation method can operate the operation unit panel 18. It is difficult to open the part panel 18. Therefore, the hand drying device 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 an explanation of the state display of turning on / off the power, switching the wind speed of the wind blown from the nozzle 12, and turning on / off the heater 15 is displayed. In addition, a lamp for status display is installed on the upper surface of the operation switch cover. Since the hole formed in the operation switch cover to transmit the light of the lamp is closed with a label or a plastic film, it is possible to prevent the ingress of dust and water.

Next, attachment / detachment of the drain container 6 to / from the casing 1 will be described. As shown in FIGS. 2 and 3, a pair of casing locking protrusions 19a projecting forward from the fixed bottom surface portion 41b of the bottom surface side water receiving portion 4b are provided at the lower portions of both side surfaces of the casing 1. .. The casing 1 is provided with a casing locking protrusion 19a, and the drain container 6 is provided with a drain container locking receiving portion 19b into which the casing locking protrusion 19a can be inserted, so that the drain container 6 can be moved in the front-rear direction of the hand drying device 100. It can be inserted and removed, and the drain container 6 is removable from the casing 1.

Therefore, at least a part of the fitting structure of the drain container 6 and the casing 1 composed of the casing locking protrusion 19a and the drain container locking receiving portion 19b is provided in the lower part of the casing 1 and is fitted. At least a part of the structure is located behind the drain 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 portion 4 does not reach the fitting structure located behind the drainage port 5 which is the dividing portion, and the accumulation of dirt is suppressed.

When the drain container 6 is mounted on the casing 1, the casing locking projection 19a of the casing 1 is fitted into the drain container locking receiving portion 19b of the drain container 6. As a result, as shown in FIG. 3, the drain container 6 is fixed to the casing 1 and does not fall from the casing 1. Then, the drain container 6 is attached to and detached from the casing 1 independently of the casing 1 regardless of the attachment / detachment bottom surface portion 42b of the bottom surface side water receiving portion 4b. Therefore, the drain container 6 can be maintained in a state of being fixed to the casing 1 even when the detachable bottom surface portion 42b is removed from the drain container 6.

FIG. 5 is a cross-sectional view of a locking portion between the drain container and the casing of the hand drying device 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 drying device according to the first embodiment. When the drain container 6 is attached to the casing 1, the casing locking protrusion 19a has a length in the front-rear direction of the casing locking protrusion 19a 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 protrusion 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 mounted on the casing 1, the center of gravity position 51 of the drain container is on the rear side of the drain container support point 52 of the casing locking protrusion 19a, so that the weight of the drain container 6 is its own weight. It is possible to prevent the drain container 6 from being attached in a state of being tilted so that the front is lowered. Further, when the drain container 6 is mounted on the casing 1, the center of gravity position 51 of the drain container 6 is located in front of the center of the casing 1 in the front-rear direction.

Further, in the drain container 6, the bottom surface 54 of the drain container is inclined so that the rear side is lowered. The rear side of the bottom surface 54 of the drain container is a horizontal surface for attachment to the casing 1. The inclination of the bottom surface 54 of the drain container so as to be lowered continues until the position of the center of gravity of the drain container 51. The inclination of the bottom surface 54 of the drain container so as to be lowered may continue to the rear side of the center of gravity position 51 of the drain container. When water is collected in the drain container 6, the volume of water collected behind the drain container center of gravity position 51 becomes larger than the volume of water collected in front of the drain container center of gravity position 51. That is, the drain container center of gravity position 55 when the drain container 6 is filled with water moves to the rear of the drain container center of gravity position 51 when the drain container 6 is empty. With the above structure, when the drain container 6 is attached to the casing 1, the center of gravity position 55 of the drain container when water is accumulated in the drain container 6 is located at the drain container support point 52 of the casing locking protrusion 19a. Is also behind, so it is possible to prevent the drain container 6 from being attached in a state where the front portion of the drain container 6 is tilted downward.

Further, since the joint 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 locking projection 19a of the casing 1 is pulled out from the drain container locking receiving portion 19b of the drain container 6 by pulling the drain container 6 forward. When the casing locking protrusion 19a is pulled out from the drain container locking receiving portion 19b, the drain container 6 is in a state of being removed from the casing 1.

Further, a barrier structure 42bb is provided on the left and right edge portions of the detachable bottom surface portion 42b to cover the joint between the casing locking protrusion 19a of the casing 1 and the drain container locking receiving portion 19b of the drain container 6. There is. As a result, it is possible to reduce the gradual accumulation of dirt at the joint between the casing locking protrusion 19a and the drain container locking receiving portion 19b by continuing the use.

Next, attachment / detachment of the attachment / detachment bottom surface portion 42b to / from the drain container 6 will be described. FIG. 7 is a cross-sectional view showing a state in which the drain container of the hand drying device according to the first embodiment and the detachable bottom surface portion are connected. FIG. 8 is a cross-sectional view showing a state before connecting the drain container of the hand drying device according to the first embodiment and the detachable bottom surface portion. FIG. 9 is a cross-sectional view showing a state in which the detachable bottom surface portion is removed from the drain container of the hand drying device according to the first embodiment. The detachable bottom surface portion 42b is detachably detachable from the drain container 6 independently, can be inserted and removed from the rear side of the drain container 6, and is attached upward to the drain container 6. That is, the lower surface portion of the outer peripheral edge portion of the barrier structure 42bb has a shape corresponding to the upper end portion 6a of the drain container 6. As a result, the lower surface portion of the outer peripheral edge portion of the detachable bottom surface portion 42b fits into the upper end portion 6a of the drain container 6, so that the detachable bottom surface portion 42b is fixed on the drain container 6. Therefore, the drain container 6 and the detachable bottom surface portion 42b are connected and fixed by a fitting structure.

The detachable bottom surface portion 42b is detachable from the drain container 6 in either a state in which the drain container 6 is attached to the casing 1 or a state in which the drain container 6 is removed from the casing 1. .. Therefore, as shown in FIG. 9, the detachable bottom surface portion 42b can be independently removed from the drain container 6 while the drain container 6 is attached to the casing 1.

Further, above the left and right inner walls of the drain container 6, drain container fitting portions 71 that fit with the detachable bottom surface portion 42b connected to the drain container 6 from the rear side are provided. The shape of the drain container fitting portion 71 has a length in the front-rear direction longer than the length in the vertical method. That is, the dimension of the drain container fitting portion 71 in the depth direction is longer than the dimension in the height direction. The lower part on the rear side of the drain container fitting portion 71 is chamfered at a corner so that the detachable bottom surface portion 42b can be easily inserted. Further, a drain container fitting portion 75 is provided on the upper part of the inner wall on the front side of the drain container 6.

The detachable bottom surface portion 42b is provided with a detachable bottom surface portion fitting portion 72 on the outer side surface of the detachable bottom surface portion 42b. The detachable bottom surface fitting portion 72 fits with the drain container fitting portion 71. The shape of the attachment / detachment bottom fitting portion 72 is longer in the front-rear direction than in the vertical direction. That is, the detachable bottom surface fitting portion 72 has a dimension in the depth direction longer than a dimension in the height direction. The upper part of the front side of the attachment / detachment bottom fitting portion 72 has chamfered corners so that it can 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. As described above, the drain container 6 and the detachable bottom surface portion 42b are provided with fitting portions that are fitted to each other.

When connecting the drain container 6 and the detachable bottom surface portion 42b, the detachable bottom surface portion 42b is slid from the rear side to the front side of the drain container 6 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 portion fitting portion 72 have the drain container fitting portion 71 on the upper side and the removable bottom surface portion fitting portion 72 on the lower side. It comes into contact with each other and is placed without rattling. Further, the drain container fitting portion 75 and the detachable bottom surface fitting portion 76 are arranged so that the drain container fitting portion 75 is on the upper side and the detachable bottom surface portion fitting portion 76 is on the lower side and are in contact with each other without rattling.

When removing the removable bottom surface portion 42b, the removable bottom surface portion 42b and the drain container 6 are separated by sliding the removable bottom surface portion 42b to the rear side of the drain container 6 after removing the drain container 6.

As described above, the detachable bottom surface portion 42b has a structure that cannot be removed upward from the drain container 6. Therefore, when the user uses the hand drying device 100, the jet that collides with the hand faces the back side water receiving portion 4a, and along the back side water receiving portion 4a, the fixed bottom surface portion 41b and the detachable bottom surface portion 42b By flowing into the drainage port 5 formed by providing a gap in the divided portion, it is possible to prevent the detachable bottom surface portion 42b from being lifted upward by the wind pressure.

A drain container protrusion 77 that protrudes upward is provided on the rear side of the drain container 6. The upper surface of the drain container protrusion 77 is circular or quadrangular. Since the drain container 6 and the detachable bottom surface portion 42b are connected by the drain container fitting portions 71 and 75 and the detachable bottom surface portion fitting portions 72 and 76, the drain container protrusion is provided with the drain container 6 attached to the casing 1. The portion 77 comes into contact with the back side of the fixed bottom surface portion 41b. That is, the detachable bottom surface portion 42b comes into contact with the casing 1 when the drain container 6 is attached to the casing 1.

As a result, when the drain container 6 is inserted and removed, the detachable bottom surface portion 42b can be inserted and removed without being caught on the back side of the fixed bottom surface portion 41b. Further, since the drain container protrusion 77 comes into contact with the back side of the fixed bottom surface portion 41b or has a structure in which there is almost no gap, smooth insertion and removal without rattling is possible. Further, since the mounting strength when the drain container 6 is mounted increases, the drain container 6 does not tilt even when the drain container 6 is full. Further, since only the protrusion 77 of the drain container comes into contact with the drain container 6, the friction when the drain container 6 is mounted is small and the insertability is good, so that the mountability can be improved while ensuring the mounting strength.

When cleaning the removable bottom surface portion 42b and the drain container 6 with the detachable bottom surface portion 42b and the drain container 6 attached to the casing 1, the drain container 6 is loaded downward by wiping the removable bottom surface portion 42b and the drain container 6 with a wet rag or the like. Is added. Since the drain container 6 does not rattle due to the presence of the drain container protrusion 77, even if a load is applied downward to the drain container 6, it can be easily wiped and cleaned. Further, the joint 53 on the side surface side of the casing 1 and the drain container 6 does not rattle due to the drain container protrusion 77 even when a load is applied to the lower side of the drain container 6, so that it is possible to prevent a gap from being generated. It will be possible.

Further, even when the drain container 6 is hung or the drain container 6 is forcibly pushed downward, it is possible to prevent the front end side of the drain container 6 from tilting downward by providing the drain container protrusion 77. Become.

Further, since the drain container protrusion 77 has a circular or quadrangular upper surface and a low height, the drain container 6 is not broken or damaged even when a downward load is applied to the drain container 6. Further, the drain container protrusion 77 is not damaged by repeated insertion and removal of the drain container 6.

Further, in the hand drying device 100 according to the first embodiment, after the drain container 6 is removed from the casing 1, the detachable bottom surface portion 42b can be removed from the drain container 6 for easy cleaning. 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 easily cleaned.

Next, the recovery of water droplets in the hand drying device 100 will be described. When the user inserts his / her hand into the manual insertion portion 3, the high-pressure air flow generator 8 operates and the air flow is blown out from the nozzle 12. As a result, water droplets are blown from the hands by the air flow. The water droplets blown off from the hand are received by the water receiving unit 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 rear outer edge region 42ba of the detachable bottom surface portion 42b and the front side outer edge region 41ba of 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 drain port 5 and collected in the drain container 6 arranged below the water receiving unit 4. The water droplets received by the detachable bottom surface portion 42b flow backward and reach the drain port 5, and are dropped from the drain port 5 into the drain container 6. On the other hand, the water droplets received by the fixed bottom surface portion 41b flow forward and reach the drain port 5, and are dropped from the drain port 5 into the drain container 6. Further, the water droplets received by the water receiving portion 4a on the back surface flow to the fixed bottom surface portion 41b, flow forward through the fixed bottom surface portion 41b, reach the drain port 5, and drop from the drain port 5 to the drain container 6. In this way, the water droplets received by the water receiving portion 4 pass through the drain 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 droplet received in 4 is guided to the drain container 6.

As a result, it is possible to prevent dirt from accumulating on the divided portion between the fixed bottom surface portion 41b and the detachable bottom surface portion 42b of the bottom surface side water receiving portion 4b. That is, by providing a gap in the split portion between the fixed bottom surface portion 41b and the detachable bottom surface portion 42b to make the drain port 5, dirt on the split portion is washed away by water droplets, so that it is possible to suppress the accumulation of dirt on the split portion. .. Further, since the fixed bottom surface portion 41b and the detachable bottom surface portion 42b are not directly fixed and are not fixed by the fitting structure between the fixed bottom surface portion 41b and the detachable bottom surface portion 42b, the bottom surface side water receiving portion 4b The shape is simple and the cleanability is improved.

Further, in the process of the water droplets received by the water receiving portion 4 flowing into the drain container 6, dirt is likely to accumulate on the bottom side water receiving portion 4b. The bottom side water receiving portion 4b is mainly exposed to the user's line of sight, and if the cleaning frequency is low, the appearance is spoiled.

Here, the detachable bottom surface portion 42b is not attached / detached to / from the casing 1, but is attached / detached independently onto the drain container 6 as described above. As a result, the detachable bottom surface portion 42b can be easily removed independently without using a tool. Therefore, the hand-drying device 100 can easily clean the detachable bottom portion 42b, which tends to accumulate dirt and must be cleaned frequently, so that the hygiene and cleanliness of the water receiving portion 4 can be maintained. It can be done, and the cleanability and maintainability of the water receiving portion 4 are improved. The method of fixing the detachable bottom surface portion 42b to the drain container 6 can obtain the same effect even if it has a claw structure other than the fitting structure.

Further, by removing the detachable bottom surface portion 42b, the fixed bottom surface portion 41b can be easily cleaned even when the drain container 6 is attached to the casing 1. Therefore, the water droplets scattered when the hands are dried adhere to the fixed bottom surface portion 41b, and the dirt gradually adheres to the fixed bottom surface portion 41b, but the fixed bottom surface portion 41b can be easily cleaned.

Further, the detachable bottom surface portion 42b is supported by the drain container 6 and is not fixed to the fixed bottom surface portion 41b. Then, as described above, the drain container 6 is directly supported by the casing 1. As a result, even if the weight of the water collected in the drain container 6 increases, no force is directly applied to the divided portion between the detachable bottom surface portion 42b and the fixed bottom surface portion 41b, so that the structure of the divided portion can be simplified. , The cleanability of the water receiving portion 4 can be improved.

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

Further, the hand drying device 100 has a structure in which the detachable bottom surface portion 42b, which tends to collect dirt, is locked not to the casing 1 but to the drain container 6. A fitting structure portion 11 for fitting and locking the detachable bottom surface portion 42b to the drain container 6 is provided on the lower side of the outer peripheral edge portion of the detachable bottom surface portion 42b. That is, as shown in FIG. 1, the hand drying device 100 has a configuration in which the fitting structure portion 11 faces the exterior surface of the hand drying device 100. With this configuration, the hand-drying device 100 causes water droplets to reach the joints of the parts that gradually become dirty as they continue to be used, that is, the fitting structure portion 11 that is the joint between the removable bottom surface portion 42b and the drain container 6. It can be arranged outside the area facing the hand insertion portion 3 which is directly blown away. Therefore, in the hand drying device 100, since the water received by the water receiving portion 4b on the bottom surface side does not reach the fitting structure portion 11, it is possible to suppress the accumulation of dirt on the fitting structure portion 11, and even if the cleaning frequency is low, the cleaning frequency is low. , It is possible to maintain the aesthetic appearance around the water receiving portion 4b on the bottom surface side.

Further, the removable bottom surface portion 42b arranged above the drain container 6 allows the fitting structure portion 11 for locking the removable bottom surface portion 42b, which gradually gets dirty as the use is continued, from above the user. It can be obscured against the line of sight. This makes it possible to reduce the discomfort that the user does not want to insert his / her hand into the hand insertion portion 3 due to the appearance of the periphery of the bottom surface side water receiving portion 4b.

Further, the water receiving portion 4 is composed of two parts, a water receiving portion 4a on the back surface side and a water receiving portion 4b on the bottom surface side, and has one divided portion. In general, dirt easily accumulates on the divided parts of the parts. However, since the water receiving portion 4 has one divided portion, it is possible to minimize the accumulation portion of dirt.

Further, a waterproof wall 44 projecting forward or upward is provided at the left-right direction and the front edge portion of the water receiving portion 4. The fitting structure of the drain container 6 and the casing 1 is provided at least below the waterproof wall 44. Therefore, the water droplets received by the waterproof wall 44 quickly flow to the detachable bottom surface portion 42b or the fixed bottom surface portion 41b, and are guided to the drain container 6 through the drain port 5. As a result, the water droplets received by the waterproof wall 44 do not easily reach the fitting structure of the drain container 6 and the casing 1, and it is possible to prevent dirt from accumulating on the fitting structure.

As described above, in the hand drying device 100 according to the first embodiment, only the detachable bottom portion 42b of the bottom side water receiving portion 4b in the water receiving portion 4 where the dirt accumulates most can be removed and easily cleaned. It is possible. Further, by removing the detachable bottom surface portion 42b, the fixed bottom surface portion 41b can be easily cleaned even when the drain container 6 is attached to the casing 1. As a result, the hand drying device 100 can maintain the hygiene and cleanliness of the water receiving portion 4, which must be cleaned frequently, and the cleanability and maintainability of the water receiving portion 4 are improved.

Therefore, according to the hand drying device 100 according to the first embodiment, the effect that the cleanability of the removable water receiving portion 4 is improved can be obtained.

The configuration shown in the above-described embodiment shows an example of the content of the present invention, can be combined with another known technique, and is one of the configurations without departing from the gist of the present invention. It is also possible to omit or change the part.

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, 7 Base, 8 High pressure air Flow generator, 9 Intake port, 10 Intake air passage, 11 Fitting structure, 12 Nozzle, 13 Exhaust air passage, 14 Hand detection sensor, 15 Heater, 18 Operation part panel, 19a Casing locking protrusion, 19b Drain container Lock receiving part, 20 maintenance panel, 20a inclined surface, 31 motor cover, 32 connecting part, 37 top opening, 41b fixed bottom surface, 41ba, 42ba outer edge area, 42b removable bottom surface, 42bb barrier structure, 43 overlapping area, 44 Waterproof wall, 44a Waterproof wall standing part, 44b Waterproof wall inclined part, 51,55 Drain container center of gravity position, 52 Drain container support point, 53 seams, 54 Drain container bottom surface, 71,75 Drain container fitting part, 72, 76 Detachable bottom fitting part, 77 Drain container protrusion, 100 Hand drying device.

Claims (3)

A casing with a recess forming a hand insertion part, which is a space where hands can be inserted and removed,
A nozzle that ejects an air flow downward from above the manual insertion portion,
A water receiving portion having a back surface side water receiving portion arranged behind the manual insertion portion and a bottom side water receiving portion arranged below the manual insertion portion.
It has a drain container that is attached to and detached from the casing below the bottom side water receiving portion.
The casing includes a casing locking portion that supports the drain container.
The center of gravity of the drainage container, the same position or the casing locking portion at a point before-rear direction of the casing engagement portion to support the drainage container is positioned behind the point of supporting the drainage container,
The drain container has an inclination on the bottom surface so that the rear side is lowered.
The inclination of the bottom surface of the drain container continues to the rear side of the center of gravity of the drain container, and the center of gravity of the drain container in which water is collected moves to the rear of the center of gravity of the empty drain container. A featured hand drying device. In the state of mounting the drain container to the casing, the center of gravity of the drain container, hand drying apparatus according to claim 1, characterized in that located in front than the center in the longitudinal direction of the casing. The hand drying device according to claim 1 or 2 , wherein the size of the casing in the front-rear direction is 150 mm or less.

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