JP4760364B2 - Hand dryer - Google Patents

Description

  The present invention relates to a hand drying apparatus for washing hands in a washroom or a toilet and drying wet hands.

  Conventionally, this type of hand-drying apparatus has been known to be dried by high-speed air (for example, see Patent Document 1).

  Hereinafter, the hand dryer will be described with reference to FIG. 9 and FIG.

  As shown in FIGS. 9 and 10, the main body 101 fixed to the wall surface is a nozzle portion 102 that ejects a high-speed jet at the lower portion, and a water receiver that is a water droplet collecting means installed in the direction of ejecting the high-speed jet from the nozzle portion 102. 103 is attached. A treatment space 104 is formed between the nozzle portion 102 and the water receiver 103 for inserting and drying the hand. In the main body 101, an air blowing means 105, a heat generating means 106, and a control means 107 are provided. A detection means 108 for detecting a hand inserted into the processing space 104 and energizing the air blowing means 105 and the heat generation means 106 is attached to a part of the main body 101.

  When a wet hand is inserted into the processing space 104 in the above-described configuration, the presence of the hand is detected by the detection unit 108 and the air blowing unit 105 and the heat generation unit 106 are operated. As a result, external air is sucked from the suction port 109 installed in the lower part of the main body, and warm air is formed through the blowing means 105 and the heating means 106 and is blown from the nozzle portion 102. At this time, warm air hits the hand that has been put out, and the hand is dried. When the hand is retracted, the detection means 108 is not detected, so the air blowing means 105 and the heat generating means 106 are stopped. Such operation is performed by the control means 107.

Although the water droplets away from the hand are collected in the water receiver 103, they are easily scattered by the air blown from the nozzle portion 102, and therefore the front and side protruding walls 110 of the water receiver 103 are attached to prevent scattering to the surroundings. It is configured. Further, the water droplets collected in the water receiver pass through the drain hole 111 in the water receiver, and a certain amount is stored in the drain tank 112. The drain tank 112 is periodically maintained and discarded.
JP-A-10-71101

  In such a conventional hand drying apparatus, there is a problem that even if a partial high-speed jet is applied to the hand, there are places where water remains, and there is a problem that the drying time becomes long. Since the space for insertion is narrow, there is a problem that when using by a large number of people, water drops removed by other people are attached to the hand dryer, which may be unsanitary. The present invention solves such a conventional problem. The high speed jet is evenly distributed from the entire circumference of the insertion port into which the hand is inserted, and the remaining water is reduced by applying it to the hand, so that the drying time is short. An object of the present invention is to provide a hand drying device that can be easily inserted and has a wider space for inserting a hand and is hygienic and easy to insert a hand.

  Moreover, in order to apply a high-speed jet to the hand from the entire circumference of the insertion port, there is a problem that a large amount of energy is required for blowing. The present invention solves such a conventional problem. By rotating the chamber and the jet outlet, the air volume is small, and even when there are few locations where the high-speed jet is ejected, the high-speed jet is applied to the entire circumference. Therefore, an object of the present invention is to provide a hand-drying apparatus capable of shortening the drying time because the number of remaining water is reduced.

  In addition, there is a problem that a high-speed jet leaks from a portion where the hand of the cylindrical portion is inserted, or water drops separated from the hand are scattered to the user. The present invention solves such a conventional problem, and an object of the present invention is to provide a hand-drying device that does not make a user uncomfortable because a high-speed jet does not leak or splash of water droplets does not occur. It is said.

  In addition, there is a problem that if the rotation of the chamber portion is not firmly supported, the chamber portion may shake or generate vibration. This invention solves such a conventional subject, and provides the hand dryer which can rotate a chamber part stably by supporting rotation of a chamber part firmly. It is aimed.

  Moreover, when the static pressure inside a chamber part becomes large, there exists a subject that a chamber part deform | transforms or it becomes easy to generate | occur | produce an air leak. The present invention solves such a conventional problem, and provides a hand-drying device that has a strength that can withstand a load caused by static pressure inside the chamber portion and that does not generate air leakage. It is intended to provide.

  Moreover, there is a problem that water droplets adhere and remain on the cylindrical surface and bottom surface of the cylindrical portion. This invention solves such a conventional subject, and provides the hand-drying apparatus which can be set as the structure which is hard to adhere to a cylindrical surface and bottom face of a cylindrical part, and can remove the adhered water droplet. The purpose is that.

  Further, there is a problem that it may be difficult to insert a hand into the cylindrical portion depending on the height of the user and the installation method. The present invention solves such a conventional problem, and when a hand dryer is installed on the floor, the direction of the cylindrical portion is made perpendicular or steeply inclined with respect to the floor to improve usability. The aim is to provide a hand-drying device that can be made.

  Further, there is a problem that it may be difficult to insert a hand into the cylindrical portion depending on the height of the user and the installation method. The present invention solves such a conventional problem, and when a hand dryer is installed on a wall surface, it is possible to improve ease of use by inclining the direction of the cylindrical portion in accordance with the installation height. It aims at providing the hand dryer which can do.

  Further, there is a problem that it may be difficult to insert a hand into the cylindrical portion depending on the height of the user and the installation method. The present invention solves such a conventional problem, and when the hand dryer is installed on the counter of the washroom, it is easy to use by making the direction of the cylindrical portion horizontal or gently inclined with respect to the floor. An object of the present invention is to provide a hand dryer capable of improving the thickness.

  Moreover, since a chamber part rotates, there exists a subject that handling of a drain hose is difficult. This invention solves such a conventional subject, and provides the hand-drying apparatus which can be not obstructed by installing a drain hole and a drain hose in the center, and installing in a location with a rotating shaft. The purpose is that.

In order to achieve the above-mentioned goal, the hand drying device of the present invention has a cylindrical portion into which a hand is inserted, has an injection port in the insertion portion into which the hand of the cylindrical portion is inserted, and the air blown from a blower is In a hand dryer that injects a high-speed jet from the jet through the chamber connecting the blower and the jet through the inside of the cylindrical unit, the jet port is installed on the entire circumference of the cylindrical unit , The chamber portion rotates with the central axis of the cylindrical portion as a rotation axis, and has a plurality of outlets at equal intervals on the entire circumference of the cylindrical surface of the cylindrical portion, and no jet flow is generated between the outlets. The velocity vector component of the high-speed jet generated from the jet outlet has a tangential component of the circumferential surface of the cylindrical portion . And according to the present invention, since the remaining water is reduced by applying a high-speed jet to the hand from the entire circumference where the hand is inserted, the drying time is shortened and the space for inserting the hand is widened. A hand-drying device that is easy and hygienic can be obtained. Further, according to the present invention, by rotating the chamber, the amount of remaining air is reduced by applying the high-speed jet from the entire circumference even when the amount of air flow is small and the number of locations where the high-speed jet is injected is small. A hand dryer that can be shortened is obtained.

  Moreover, the operation | movement which the chamber part rotates corresponds with the operation start and operation stop of the air blower.

  Moreover, the wind speed of the high-speed jet generated from the jet port is 70 to 120 m / s immediately below the jet port.

  Further, the ejection port is inclined toward the bottom surface of the cylindrical portion. And according to this invention, since a high-speed jet does not leak or the splash of a water droplet does not generate | occur | produce, the hand dryer which a user does not become uncomfortable is obtained.

  Further, the chamber portion is supported by two bearings. And according to this invention, the hand dryer which can rotate a chamber part stably by supporting rotation of a chamber part firmly is obtained.

  Further, the chamber portion is supported by two bearings on the lower side of the chamber portion.

  In addition, the air passage connected to the blower in the chamber portion has a cylindrical shape, and is supported by using two bearings on the outer peripheral portion of the air passage.

  Further, the outer diameter of the bearing is smaller than the diameter of the cylindrical portion.

  In addition, a reinforcing rib for preventing deformation due to the pressure of the high-pressure air is provided on a surface of the chamber portion that contacts the high-pressure air. And according to this invention, the hand-drying apparatus which can have the intensity | strength which can endure the load by the static pressure inside a chamber part, and can be set as the structure which does not generate | occur | produce an air leak is obtained.

  Further, the present invention is characterized in that the outer peripheral portion of the air passage has a sealing component that prevents high-pressure air from leaking.

  In addition, a part of the surface of the cylindrical surface of the cylindrical portion is water-repellent processed. And according to this invention, the hand-drying apparatus which can be set as the structure which cannot remove a water droplet to the cylindrical surface and bottom face of a cylindrical part, and can remove the adhered water droplet is obtained.

  In addition, a part of the surface of the cylindrical surface of the cylindrical portion has an uneven shape that promotes water repellency.

  The cylindrical surface of the cylindrical portion is inclined downward toward the inner periphery.

  Further, the bottom surface of the cylindrical portion is inclined downward toward the outer periphery.

  Further, the central axis of the cylindrical portion is perpendicular or steeply inclined with respect to the floor. According to the present invention, when the hand dryer is installed on the floor, a hand dryer capable of improving the ease of use can be obtained by making the direction of the cylindrical portion vertical or steeply inclined with respect to the floor.

  The central axis of the cylindrical portion is inclined with respect to the floor. According to the present invention, when the hand dryer is installed on the wall surface, a hand dryer capable of improving the ease of use is obtained by inclining the direction of the cylindrical portion in accordance with the installation height.

  Further, the central axis of the cylindrical portion is horizontal or gently inclined with respect to the floor. According to the present invention, when the hand dryer is installed on the counter of the washroom, the hand dryer that can improve the ease of use by horizontally or gently tilting the direction of the cylindrical portion with respect to the floor is provided. can get.

  In addition, the bottom surface of the cylindrical portion is inclined downward toward the inner periphery, and a drain hole is provided in the center of the bottom surface. And according to this invention, the hand-drying apparatus which can be not obstructed by installing a drain hole and a drain hose in the center, and installing in a location with a rotating shaft is obtained.

  In addition, the drain hose connecting the drain hole and the drain tank for storing drain drainage is configured to pass through the inside of the air passage.

  According to the present invention, it is possible to reduce the troublesomeness of the user by shortening the drying time by installing the jet nozzles on the entire circumference of the cylindrical portion. Moreover, since the operation time of the hand dryer can be shortened, it is possible to provide a hand dryer that is effective in reducing power consumption and extending the life of the hand dryer.

  In addition, by rotating the chamber around the central axis of the cylindrical part, high-speed wind can be applied evenly to the hand and moisture attached to the hand can be efficiently blown away. Therefore, it is possible to provide a hand dryer that can reduce the air volume and reduce power consumption.

  In addition, a hand-drying device having a similar effect by installing a plurality of jet outlets at equal intervals on the entire circumference of the cylindrical surface of the cylindrical portion, and providing a place where no jet flow is generated between the jet outlets. Can be provided.

  Moreover, the hand dryer which has the same effect can be provided because the velocity vector component of the high-speed jet generated from a jet nozzle has the tangential component of the circumferential surface of a cylindrical part.

  In addition, a hand-drying device having the same effect can be provided because the rotating operation of the chamber portion coincides with the start and stop of the operation of the blower.

  Moreover, the hand dryer which has the same effect can be provided because the wind speed of the high-speed jet generated from the jet port is 70-120 m / s just under the jet port.

  In addition, the spout is inclined toward the bottom surface of the cylindrical portion, so that the clothes can be used comfortably without being contaminated by splashing water droplets without impairing the function of drying and cleaning hands. A hand dryer can be provided.

  Further, by supporting the chamber portion with two bearings and rotating stably, an extra burden on the bearing can be reduced, and a hand drying device having an effect of extending the life of the hand drying device can be provided.

  Further, by supporting the chamber part with two bearings on the lower side of the chamber part, a hand drying device having the same effect can be provided.

  In addition, the air passage connected to the blower in the chamber portion has a cylindrical shape, and a hand-drying device having the same effect is provided by supporting two bearings on the outer peripheral portion of the air passage. it can.

  Moreover, the hand dryer which has the same effect can be provided because the outer diameter of a bearing is smaller than the diameter of a cylindrical part.

  In addition, since a reinforcing rib for preventing deformation due to the pressure of the high-pressure air is installed on the surface of the chamber portion in contact with the high-pressure air, static pressure can be maintained and air leakage can be prevented. Can be provided.

  Further, a hand drying device having the same effect can be provided by having a sealing component for preventing leakage of high-pressure air at the outer peripheral portion of the air passage.

  In addition, a hand-drying device that has the effect of being able to be used comfortably even when there are a plurality of users by keeping a part of the surface of the cylindrical part water-repellent to keep the cylindrical part clean. Can provide.

  In addition, by providing a part of the surface of the cylindrical surface of the cylindrical portion with an uneven shape that is easy to repel water, the cylindrical portion is always kept clean, so that it can be used comfortably even when there are multiple users. Can provide a hand-drying device with

  In addition, a hand drying device having the same effect can be provided by inclining the cylindrical surface of the cylindrical portion downward toward the inner periphery.

  Moreover, the hand drying apparatus with the same effect can be provided by inclining the bottom face of the cylindrical part downward toward the outer periphery.

  In addition, since the central axis of the cylindrical portion is vertical or steeply inclined with respect to the floor, there is no inconvenience due to difficulty in use, and a hand drying device that can be used comfortably can be provided.

  In addition, by inclining the central axis of the cylindrical portion with respect to the floor, there is no inconvenience due to difficulty in use, and it is possible to provide a hand-drying device that has an effect that it can be used comfortably.

  In addition, since the central axis of the cylindrical portion is horizontal or gently inclined with respect to the floor, there is no inconvenience due to difficulty in use, and a hand drying device that can be used comfortably can be provided.

  In addition, the bottom surface of the cylindrical portion is inclined downward toward the inner periphery, and the drain hole is provided in the center of the bottom surface, thereby simplifying the configuration, thereby simplifying cleaning and maintenance by disassembly. A hand dryer can be provided.

  Further, the drain hose connecting the drain hole and the drain tank for storing drain drainage is configured to pass through the inside of the air passage, thereby providing a hand drying device having the same effect.

  The invention according to claim 1 of the present invention has a cylindrical portion into which a hand is inserted, has an ejection port in the insertion portion into which the hand of the cylindrical portion is inserted, and air blown from a blower is connected to the blower and the jet. In a hand dryer that injects a high-speed jet from the jet into the inside of the cylindrical part via a chamber part connected to the outlet, the jet outlet is installed on the entire circumference of the cylindrical part. Since a high-speed jet is jetted from the entire circumference of the space to be inserted, a blind spot where the high-speed jet does not hit is difficult to occur when the hand is dried. Therefore, it is not necessary to operate the hand unnecessarily, and as a result, the drying time can be shortened. Moreover, since the space into which the hand is inserted is a cylinder, the frontage can be widened, so that the hand can be easily inserted and can be sanitized.

  In addition, the chamber portion rotates with the central axis of the cylindrical portion as the rotation axis. Even when the chamber portion rotates and the air volume is small and the opening portion of the jet outlet for jetting a high-speed jet is small, the opening portion is the chamber portion. Since it rotates with the rotation of, a high-speed jet can be applied to the hand from the entire circumference. Therefore, it is not necessary to operate the hand unnecessarily, and as a result, the time for drying can be shortened.

  In addition, since the jet outlet is inclined toward the bottom surface of the cylindrical portion and the jet outlet is directed toward the bottom surface side of the cylindrical portion, high-speed jets may leak from the space of the cylindrical portion or water droplets may scatter. And has an effect that the user can use it cleanly and comfortably.

  In addition, the chamber portion is supported by two bearings, and the chamber portion rotates stably, so that noise due to vibrations unpleasant to the user is not generated.

  In addition, a reinforcing rib for preventing deformation due to the pressure of the high-pressure air is installed on the surface of the chamber portion that is in contact with the high-pressure air. By reinforcing the chamber portion with the rib, It can withstand loads due to pressure, and can prevent damage and quality defects due to deformation.

  Moreover, it has the effect | action of installing a seal | sticker structure part and maintaining the static pressure inside a chamber part, and preventing an energy loss so that the air leak from a bearing part may not generate | occur | produce.

  In addition, a part of the surface of the cylindrical surface of the cylindrical portion is water-repellent processed, and the surface of the cylindrical surface of the cylindrical portion is processed into a concavo-convex shape that is easy to be water-repellent or inclined to improve drainage, Water droplets can be made difficult to adhere to, and the cylindrical part rotates as a part of the chamber part, so water drops easily move around the cylindrical surface by centrifugal force, so the bottom of the cylindrical part is inclined downward toward the outer periphery. It has the effect of improving the drainage and pouring water droplets into the drain to always create a dry and clean situation.

  In addition, the central axis of the cylindrical part is vertical or steeply inclined with respect to the floor, and when the hand dryer is installed on the floor, the central axis of the cylindrical part is vertical or steeply inclined with respect to the floor. Therefore, it is easy to use because the user's hand can be easily inserted.

  In addition, the central axis of the cylindrical portion is inclined with respect to the floor, and when the hand dryer is installed on the wall surface, the user's hand is placed by inclining the central axis of the cylindrical portion with respect to the floor. Since the arrangement can be easily inserted, it has the effect of being easy to use.

  In addition, the central axis of the cylindrical part is horizontal or gently inclined with respect to the floor, and when the hand dryer is installed on the counter in the washroom, the central axis of the cylindrical part is horizontal or gentle with respect to the floor. Since it can be arranged so that the user's hand can be easily inserted by tilting, it has the effect of being easy to use.

  In addition, the bottom surface of the cylindrical portion is inclined downward toward the inner periphery, and a drain hole is installed in the center of the bottom surface. By holding the drain hole and the drain hose in the center, the drain hose is connected to the chamber portion. Even if they are rotated together, there is no problem and the structure can be simplified.

Hereinafter, reference and embodiments of the present invention will be described with reference to the drawings.

( Reference form 1)
Embodiment 1 Reference of the present invention, FIG. 1, as shown in FIG. 2, has a cylindrical portion 1 which has a space for inserting the hand, insertion portion of the cylindrical portion 1 which is the insertion opening of the hand inserting a hand The high-pressure air having a nozzle-shaped jet nozzle 2 at 23 and having a differential pressure of 5 to 10 kPa from the atmospheric pressure blown from the blower 3 passes through the chamber portion 4 connecting the blower 3 and the jet nozzle 2. The high-speed jet is ejected from the jet outlet 2 to the center, and the high-speed jet is brought into contact with the hand to separate the water adhering to the hand. The jet outlet 2 is arranged on the entire circumference of the cylindrical portion 1. Yes. In the above configuration, when a wet hand is inserted into the cylindrical portion 1, the presence of the hand is detected by the infrared sensor 5 that is the detection means, and the blower 3 and the PTC heater 6 that is the heat generation means are operated. Thereby, external air is sucked from the suction port 7 installed at the lower part of the main body, hot air is formed via the blower 3 and the PTC heater 6, and a high-speed jet is blown from the jet port 2. At this time, warm air hits the hand that has been put out, and the hand is dried.

(Embodiment 1 )
The same parts as those of the reference form 1 are denoted by the same reference numerals, and detailed description thereof is omitted.

As shown in FIG. 2, the first embodiment of the present invention is installed so that the chamber portion 4 can be rotationally driven with the central axis 8 of the cylindrical portion 1 as the rotation axis 9. In the above configuration, a plurality of jet nozzles 2 are installed at equal intervals around the entire circumference of the cylindrical surface 10 of the cylindrical portion 1. There is a space between the respective jet outlets 2 and places where no jet flow is generated. This is because the ejection port 2 rotates about the rotation axis 9 as the chamber portion 4 rotates, so that even when the ejection port 2 is not on the entire circumference, the high-speed jet can be brought into contact with a sufficiently wet hand. The driving force for rotation is due to the reaction force of the high-speed jet. Since the velocity vector component of the high-speed jet has a tangential component of the cylindrical surface 10 of the cylindrical portion 1, it is rotated by the driving force due to the moment of the tangential component of the radius of the cylindrical surface 10 and the reaction force of the jet. Accordingly, the rotating operation of the chamber portion 4 is started by the generation of a high-speed jet due to the start of the operation of the blower 3, and is stopped because the generation of the high-speed jet due to the stop of the operation of the blower 3 is eliminated and the driving force is lost. If the wind speed of the high-speed jet is 70 to 120 m / s directly below the jet outlet 2, the rotation of the chamber portion 4 is activated and driven by the driving force of the jet and the moment driving force depending on the distance from the central axis 8. can do.

  By rotating the spout 2, the direction of the jet that hits the wet hand rotates, changes, intermittently and periodically hits the wet hand evenly and efficiently blows off the moisture on the hand. Will be dried efficiently.

(Embodiment 2 )
The same parts as those in Reference Embodiment 1 or Embodiment 1 are denoted by the same reference numerals, and detailed description thereof is omitted.

Embodiment 2 of the present invention, as shown in FIG. 3, by inclining toward the ejection port 2 to the bottom surface 11 of the cylindrical portion 1, jet high velocity jet in the direction of the bottom surface 11 that is blown from the ejection port 2 Therefore, it is possible to avoid leaking outside the cylindrical portion 1 into which the hand is inserted and scattering water droplets.

(Embodiment 3 )
The same parts as those in Reference Embodiment 1 or Embodiments 1 and 2 are denoted by the same reference numerals, and detailed description thereof is omitted.

In the third embodiment of the present invention, as shown in FIG. 3, a bearing 12 is provided to support the chamber portion 4 so that it can rotate. Two bearings 12 can be provided with rigidity. The bearing 12 uses a deep groove ball bearing. The portion of the air passage 13 for supplying high-pressure air to the chamber portion 4 has a cylindrical shape, and is supported by using two bearings 12 on the outer peripheral portion of the cylindrical portion.

(Embodiment 4 )
The same parts as those in Reference Embodiment 1 or Embodiments 1 to 3 are denoted by the same reference numerals, and detailed description thereof is omitted.

In the fourth embodiment of the present invention, as shown in FIG. 3, the chamber portion 4 is a thin plate in order to reduce the weight of the chamber portion 4 and make it easy to start. At this time, in order to increase the static pressure inside the chamber portion 4 and to withstand the load, a plurality of reinforcing ribs 14 are installed inside the chamber portion 4 to improve the strength. In addition, a bearing 12 is installed to support the rotation of the chamber portion 4, but when a deep groove ball bearing is used for the bearing 12, a gap is generated between the inner ring 15, the outer ring 16, and the ball 17, so that air leakage occurs. it can. In order to prevent this air leakage, the seal component 18 is installed between the two bearings 12 installed.

(Embodiment 5 )
The same parts as those of Reference Embodiment 1 or Embodiments 1 to 4 are denoted by the same reference numerals, and detailed description thereof is omitted.

In the fifth embodiment of the present invention, as shown in FIG. 4, a part of the surface of the cylindrical surface 10 of the cylindrical portion 1 is subjected to water repellent processing, or a part of the surface of the cylindrical surface 10 is formed into an uneven shape 19. By doing so, it becomes difficult for the water droplets generated when the water adhering to the hand is separated from the hand to adhere to the surface of the cylindrical surface 10, and it can always be in a clean state. In addition, the cylindrical surface 10 of the cylindrical portion 1 is inclined and inclined downward toward the inner circumference, so that water drops are difficult to attach.

(Embodiment 6 )
The same parts as those in Reference Embodiment 1 or Embodiments 1 to 5 are denoted by the same reference numerals, and detailed description thereof is omitted.

As shown in FIG. 5, in the sixth embodiment of the present invention, when the hand dryer is installed on the floor, the user inserts the hand from above when inserting the hand into the cylindrical portion 1. It is desirable to install one opening as high as possible above the hand dryer. Therefore, by inserting the central axis 8 of the cylindrical portion 1 perpendicular to the floor, hand insertion becomes easy. Depending on the installation height of the main body and the like, there may be a case where the central axis 8 of the cylindrical portion 1 is steeply inclined.

(Embodiment 7 )
The same parts as those in Reference Embodiment 1 or Embodiments 1 to 6 are denoted by the same reference numerals, and detailed description thereof is omitted.

In the seventh embodiment of the present invention, as shown in FIG. 6, when the hand drying device is installed on the wall surface, the user inserts the hand from the upper side when inserting the hand into the cylindrical portion 1. It is desirable that the opening of the part 1 be installed at a position where the opening is inclined. Therefore, by inserting the central axis 8 of the cylindrical portion 1 so as to be inclined with respect to the floor, the hand can be easily inserted.

(Embodiment 8 )
The same parts as those in Reference Embodiment 1 or Embodiments 1 to 7 are denoted by the same reference numerals, and detailed description thereof is omitted.

In the eighth embodiment of the present invention, as shown in FIG. 7, when the hand dryer is installed on the counter of the washroom, the user inserts the hand almost horizontally when inserting the hand into the cylindrical portion 1. Therefore, it is desirable to install the opening of the cylindrical portion 1 in front of the hand dryer. Therefore, by inserting the central axis 8 of the cylindrical portion 1 horizontally with respect to the floor, hand insertion becomes easy. Depending on the installation height of the main body and the like, it may be appropriate to install the central axis 8 of the cylindrical portion 1 with a gentle inclination.

(Embodiment 9 )
The same parts as those in Reference Embodiment 1 or Embodiments 1 to 8 are denoted by the same reference numerals, and detailed description thereof is omitted.

In the ninth embodiment of the present invention, as shown in FIG. 8, the drain hole 20 is installed at the center of the bottom surface 11 of the cylindrical portion 1, and the bottom surface 11 of the cylindrical portion 1 is substantially inclined toward the center, so The water droplets removed from the hand are collected in the drain tank 22 via the drain hole 20 and the drain hose 21 to facilitate collection. The drain hose 21 is connected to the drain hole 20 and rotates together with the chamber portion 4. However, since the drain hose 21 is installed in the center, it does not contact other members.

  The hand drying device according to the present invention has an effect that the jet flow ejected from the nozzle portion intermittently contacts the inserted hand so that moisture attached to the hand can be easily dried to perform hand drying in a short time. is there.

  Therefore, it is effective for an apparatus for washing hands in a washroom, a toilet, etc. and drying wet hands, and can also be applied as an application for drying things wet by liquid in general.

The perspective view which shows the structure of the reference form 1 of this invention Perspective cross-sectional view showing the structure of Embodiment 1 of the embodiment that according to the first reference of the present invention FIG. 3 is a perspective sectional view showing the structure of Embodiments 2 , 3 , and 4 of the present invention. The perspective view which shows the structure of Embodiment 5 of this invention. The perspective view which shows the structure of Embodiment 6 of this invention. The perspective view which shows the structure of Embodiment 7 of this invention. The perspective view which shows the structure of Embodiment 8 of this invention. A perspective sectional view showing the structure of a ninth embodiment of the present invention A longitudinal sectional view showing an example of a conventional hand dryer Same perspective view

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cylindrical part 2 Spout 3 Blower 4 Chamber part 5 Infrared sensor 6 PTC heater 7 Suction port 8 Center axis 9 Rotating shaft 10 Cylindrical surface 11 Bottom 12 Bearing 13 Air passage 14 Reinforcement rib 15 Inner ring 16 Outer ring 17 Ball 18 Seal component 19 Uneven shape 20 Drain hole 21 Drain hose 22 Drain tank 23 Insertion section

Claims (19)

It has a cylindrical part for inserting a hand, has an outlet in the insertion part for inserting the hand of the cylindrical part, and the air blown from the blower passes through a chamber part connecting the blower and the outlet, In the hand dryer that injects a high-speed jet from the jet into the cylindrical part, the jet is provided on the entire circumference of the cylindrical part, and the chamber part rotates with the central axis of the cylindrical part as a rotation axis. The speed of the high-speed jet generated from the jet outlet is provided with a plurality of jet outlets at equal intervals on the entire circumference of the cylindrical surface of the cylindrical portion, and a portion where no jet flow is generated between the jet outlets. hand dryer characterized in that the vector component has a tangential component of the circumferential surface of the cylindrical portion. Operation of rotating the chamber portion, the hand drying apparatus according to claim 1, characterized in that matches the operation start and operation stop of the blower. The hand dryer according to claim 2 , wherein the wind speed of the high-speed jet generated from the jet port is 70 to 120 m / s immediately below the jet port. The hand dryer according to claim 3, wherein the jet port is inclined toward the bottom surface of the cylindrical portion. The hand dryer according to claim 4, wherein the chamber portion is supported by two bearings. 6. The hand dryer according to claim 5 , wherein the chamber portion is supported by two bearings on the lower side of the chamber portion. The hand dryer according to claim 6 , wherein the air passage connected to the blower in the chamber portion has a cylindrical shape and is supported by using two bearings on the outer peripheral portion of the air passage. The hand dryer according to claim 7, wherein an outer diameter of the bearing is smaller than a diameter of the cylindrical portion. The hand-drying device according to claim 8 , wherein a reinforcing rib for preventing deformation due to the pressure of the high-pressure air is provided on a surface of the chamber portion that contacts the high-pressure air. The hand dryer according to claim 9, further comprising a sealing component that prevents leakage of high-pressure air at an outer peripheral portion of the air passage. A part of the surface of the cylindrical surface of the cylindrical portion hand dryer according to claim 1 0, wherein the processed water repellent. Hand drying apparatus according to claim 1 1, wherein a part of the surface of the cylindrical surface of the cylindrical portion and an irregular shape. The cylindrical surface of the cylindrical portion toward the inner periphery, characterized in that is inclined downward claim 1 2 hand dryer according. Hand drying apparatus according to claim 1 3, wherein the tilted downwardly toward the bottom surface of the cylindrical portion to the outer periphery. Hand drying apparatus according to claim 1 4, wherein in that the vertical central axis to the floor of the cylindrical portion. Hand drying apparatus according to claim 1 4, wherein the tilted with respect to the floor of the central axis of the cylindrical portion. Hand drying apparatus according to claim 1 4, wherein it has a horizontal central axis with respect to the floor of the cylindrical portion. The hand dryer according to claim 17 , wherein the bottom surface of the cylindrical portion is inclined downward toward the inner periphery, and a drain hole is installed at the center of the bottom surface. The hand dryer according to claim 18 , wherein a drain hose connecting a drain hole and a drain tank for storing drainage drain passes through an inside of an air passage.

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