JP5586302B2 - Hand dryer - Google Patents

Description

  The present invention relates to a hand drying device that hygienically dries wet hands after washing by blowing high-pressure airflow.

  When a user inserts a hand through a hand insertion port, a hand drying device for drying wet hands ejects a high-pressure air flow from a nozzle at a position facing the inserted hand and blows off water droplets attached to the hand. Then dry your wet hands. Conventionally, the hand drying apparatus has a problem that a high-pressure air flow that collides with the hand is blown back to the user, and the blown water droplets are scattered around.

  In response to this problem, for example, Patent Document 1 discloses a technique of ejecting a line-shaped jet that is centered toward the hand and close to the hand toward both ends in a state where both hands are aligned in a plane. Yes. Many of the line jets that collide with the hand are blown off with the water droplets diagonally downward toward the inside of the hand insertion part, and part of the line jets that collide with the hand are obliquely upward and laterally near the outside of the hand insertion part. With the action of being blown away so as to separate, the blow-back of the high-pressure air flow to the user and the scattering of water droplets are reduced.

JP 2002-136448 A

  The above-described line-shaped jet is ejected from a line-shaped nozzle that is inclined so that the center is closer to the hand and closer to the hand toward both ends. However, as the line-shaped nozzle is inclined, the hand insertion part becomes longer to the insertion back side, so that it becomes necessary to insert a hand deeply into the hand insertion part, resulting in poor usability and an increase in product size. Challenges arise. In particular, when installed in a toilet that is often a narrow space, there is a strong demand for a compact product size.

  The present invention has been made in view of the above, and does not increase the product size, and can prevent the air flow back to the user and the scattering of water droplets, thereby obtaining a hand-drying device that is easy to use for the user. For the purpose.

  In order to solve the above-described problems and achieve the object, the present invention includes a first wall portion and a second wall portion facing the first wall portion, and the first wall portion is provided through a hand insertion port. A hand insertion part formed so that a hand can be inserted and removed between the wall part and the second wall part, a first nozzle part provided on the first wall part for ejecting a high-pressure air flow, A second nozzle portion that is provided on the second wall portion and ejects a high-pressure air flow, and at least one of the first nozzle portion and the second nozzle portion is roughly a plurality of nozzle holes. A plurality of nozzle hole groups arranged in a straight line are provided on each of one end side from the central part of the manual insertion portion and on the other end side from the central part, and the nozzle hole group includes: The nozzle hole located on the center side of the hand insertion part is inserted on the front side of the insertion, and the nozzle hole located on the end side of the hand insertion part is inserted. So that the side, and characterized in that in parallel the plurality of nozzle holes obliquely.

  According to the present invention, it is possible to prevent air flow back to the user and splash of water droplets without using a complicated configuration and without increasing the product size, and to obtain a hand drying device that is easy to use for the user. Can do.

FIG. 1 is a perspective view of a hand-drying apparatus according to Embodiment 1 of the present invention. FIG. 2 is a cross-sectional view of the hand dryer. FIG. 3 is a plan view of the first nozzle portion. FIG. 4 is a schematic plan view showing a state in which a hand is inserted into the hand insertion portion. FIG. 5 is a comparative example of the present embodiment, and is a diagram illustrating a case where one straight nozzle hole is provided on each of the left and right sides. FIG. 6 is a plan view of the first nozzle portion of the first modification. FIG. 7 is a plan view of a first nozzle portion in which nozzle hole groups and slit-like nozzle holes are mixed. FIG. 8 is a plan view of the first nozzle portion of the second modification. FIG. 9 is a plan view of the first nozzle part in the case where a line with an angle at the center part is employed so that the end part side is the insertion back side with respect to the center part side. FIG. 10 is a plan view of the first nozzle portion in the case of adopting a line in which a certain range around the center portion is not inclined but a portion of the end portion side is inclined. FIG. 11 is a plan view of the first nozzle portion of the third modification. FIG. 12 is a plan view of the first nozzle portion of the fourth modified example. FIG. 13 is a plan view of the first nozzle portion of the fifth modification. FIG. 14 is a schematic diagram illustrating a characteristic part of the hand dryer according to the second embodiment of the present invention. FIG. 15 is a diagram for explaining a modification of the second embodiment. FIG. 16 is a perspective view of a hand dryer according to the third embodiment of the present invention.

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

Embodiment 1 FIG.
FIG. 1 is a perspective view of a hand-drying apparatus according to Embodiment 1 of the present invention. FIG. 2 is a cross-sectional view of the hand dryer. The manual insertion portion 3 includes a first wall portion 4 and a second wall portion 5 that faces the first wall portion 4. The hand insertion portion 3 is formed so that a hand can be inserted and removed from the first wall portion 4 and the second wall portion 5 from the hand insertion port 2 at the top of the main body 1.

  The first nozzle portion 6 is provided on the first wall portion 4. The second nozzle portion 7 is provided on the second wall portion 5. The first nozzle portion 6 and the second nozzle portion 7 each eject a high-pressure air stream toward the hand inserted from the hand insertion port 2. The blower 8 blows high-pressure air to the first nozzle unit 6 and the second nozzle unit 7. The drain tank 9 collects drain water.

  FIG. 3 is a plan view of the first nozzle unit 6. The first nozzle portion 6 is composed of a plurality of nozzle hole groups 10. A plurality of nozzle hole groups 10 are provided from the central portion of the manual insertion portion 3 to one end portion side and from the central portion to the other end portion side. Each nozzle hole group 10 is formed by arranging a plurality of nozzle holes 12 in a substantially straight line. Each nozzle hole group 10 includes a plurality of nozzle holes 12 positioned on the center side of the manual insertion portion 3 such that the nozzle holes positioned on the front side of the insertion and the nozzle holes positioned on the end side of the manual insertion portion 3 are on the insertion back side. The nozzle holes 12 are arranged obliquely in parallel. Further, each nozzle hole group 10 is arranged so that the nozzle holes 12 located on the center side of the hand insertion portion 3 are on substantially the same straight line 11. The first nozzle portion 6 is configured by arranging a plurality of nozzle hole groups 10 substantially symmetrically with respect to the central portion of the manual insertion portion 3.

  From the user's point of view, the nozzle hole group 10 located on the right side from the center of the manual insertion portion 3 has substantially the same inclination with the leftmost nozzle hole 12 facing up and the rightmost nozzle hole 12 facing down. ing. Further, the nozzle hole group 10 located on the left side from the center part of the manual insertion part 3 has substantially the same inclination with the rightmost nozzle hole 12 on the upper side and the leftmost nozzle hole 12 on the lower side. Further, the nozzle holes 12 located at the inclined upper ends of the nozzle hole groups 10 are arranged to have substantially the same height. The second nozzle unit 7 is configured in the same manner as the first nozzle unit 6.

  FIG. 4 is a schematic plan view showing a state in which a hand is inserted into the hand insertion portion 3. When the user inserts a hand from the hand insertion port 2, a high-pressure air stream is ejected from the first nozzle portion 6 and the second nozzle portion 7 toward the hand. The water droplets 14 adhering to the wet hand are blown away by the high-pressure air flow. The blown water droplets 14 are collected into the drain tank 9 through a discharge port (not shown) provided at the bottom of the manual insertion portion 3. The air flow ejected from the first nozzle portion 6 and the second nozzle portion 7 blows off the water droplets 14, and then from the openings formed on both side surfaces of the main body 1 in the manual insertion portion 3. Is discharged.

  When the nozzle hole group 10 is tilted so that the center side is in front of the insertion, when the user inserts the hand into the hand insertion port 2 with a natural posture, the air flow A hitting the hand is 3 blows back diagonally upward and left and right. Thereby, it is reduced that the air flow containing minute water droplets hits the user standing in front of the hand dryer, in particular, rebounding to the face.

  Further, the air flow B blown to the left and right hands is blown off obliquely below the center of the hand insertion portion 3 together with the water droplets 14 blown from the hands. The water droplets 14 are efficiently collected at the center of the bottom surface of the hand insertion portion 3, and scattering to the surroundings is suppressed.

  FIG. 5 is a comparative example of the present embodiment and is a diagram for explaining a case where one straight nozzle hole 13 is provided on each of the left and right sides. The nozzle hole 13 is inclined with the center side of the hand insertion portion 3 as the upper side and the end side as the lower side. The nozzle hole 13 is provided in the range of the length Lb in the insertion direction.

  On the other hand, in the case of the present embodiment shown in FIG. 4, each nozzle hole 12 positioned at the upper end is provided with a plurality of nozzle hole groups 10 so as to be positioned on substantially the same straight line 11. The length La of the range in which the nozzle hole group 10 is provided is shorter than in the case of the above comparative example (La <Lb). The manual insertion portion 3 can shorten the depth required to accommodate the hand by the amount that the range in which the nozzle hole group 10 is provided in the insertion direction can be shortened.

  The user can use the device in a more natural posture because the distance of the insertion stroke until the user inserts the wrist into the hand insertion portion 3 is shortened, and the usability is improved. The hand drying device can reduce the product size by reducing the depth of the hand insertion portion 3. Thereby, without increasing the product size, it is possible to prevent the air flow back to the user and the scattering of water droplets, and it is possible to obtain a hand drying device that is convenient for the user.

  Next, modified examples of the first nozzle unit 6 and the second nozzle unit 7 will be described. FIG. 6 is a plan view of the first nozzle portion 6 of the first modification. The first nozzle portion 6 of this modification is configured by providing a plurality of nozzle holes 15 formed in a slit shape. A plurality of nozzle holes 15 are provided on each of the hand insertion portion 3 from the center portion to one end portion side and from the center portion to the other end portion side. The nozzle hole 15 is formed obliquely so that the center side portion of the hand insertion portion 3 is the front insertion side and the end portion side of the hand insertion portion 3 is the insertion back side. Further, the nozzle holes 15 are arranged so that the central side portions of the manual insertion portion 3 are on substantially the same straight line 11. The first nozzle portion 6 is configured by arranging a plurality of nozzle holes 15 substantially symmetrically with respect to the central portion of the manual insertion portion 3.

  Even when a plurality of slit-shaped nozzle holes 15 are provided, the same effect as when a plurality of nozzle hole groups 10 are provided can be obtained. Further, as shown in FIG. 7, a nozzle hole group 10 in which a plurality of nozzle holes 12 are arranged in parallel and a slit-like nozzle hole 15 may be mixed.

  FIG. 8 is a plan view of the first nozzle portion 6 of the second modification. In the first nozzle portion 6 of this modification, each nozzle hole group 10 is arranged so that the nozzle holes 12 located on the center side among the nozzle hole groups 10 are on substantially the same arc 16. . In this modification, the nozzle hole group 10 located on the end side of the hand insertion portion 3 is located on the insertion back side with respect to the nozzle hole group 10 located on the center portion side of the hand insertion portion 3.

  In the case of this modification, the nozzle hole group 10 located on the end side is arranged on the insertion back side as compared with the case where the nozzle hole 12 on the center side is on the straight line 11 (see FIG. 3). . Accordingly, the range in which the nozzle hole group 10 is provided in the insertion direction becomes longer, and it is possible to further suppress the air flow back to the user and the splashing of water droplets.

  The present modification may be any configuration as long as the nozzle hole group 10 located on the end side is located on the back side of the insertion with respect to the nozzle hole group 10 located on the center part side, and the nozzle holes 12 located on the center part side. However, the present invention is not limited to the case in which arc is on the arc 16. In place of the arc 16, there is a line 17 (see FIG. 9) in which the central portion is angled so that the end portion side is the insertion back side with respect to the central portion side, or a certain range centered on the central portion. You may employ | adopt the line 18 (refer FIG. 10) which gave inclination to a part by the side of an edge part, without giving inclination.

  This modification may be applied to the slit-like nozzle hole 15. Also in this case, the nozzle hole 15 located on the end side of the hand insertion portion 3 is located on the back side of the insertion with respect to the nozzle hole 15 located on the center portion side of the hand insertion portion 3. In this case as well, the same effect as when a plurality of nozzle hole groups 10 are employed can be obtained.

  FIG. 11 is a plan view of the first nozzle portion 6 of the third modification. The first nozzle portion 6 of this modification is provided with the nozzle hole group 10 with different inclinations for arranging the plurality of nozzle holes 12 in parallel. The nozzle hole group 10 located on the end side is formed so that the inclination of juxtaposing the nozzle holes 12 is closer to the horizontal direction than the nozzle hole group 10 located on the center part side. Here, the straight line 11 is assumed to be parallel to the horizontal direction.

  In the case of this modification, the nozzle hole group 10 located on the end side is within a short range in the insertion direction compared to the case where the nozzle hole group 10 is provided with a certain inclination from the center to the right and from the center to the left. Will be placed. Accordingly, it is possible to further reduce the depth required to accommodate the hand and further improve the usability.

  This modification may be applied to the slit-like nozzle hole 15. In this case, the nozzle hole 15 located on the end side is formed so that the inclination is closer to the horizontal direction than the nozzle hole 15 located on the center side. In this case as well, the same effect as when a plurality of nozzle hole groups 10 are employed can be obtained.

  FIG. 12 is a plan view of the first nozzle portion 6 of the fourth modification. The first nozzle portion 6 of this modification is provided with a nozzle hole group 10 having different lengths. The nozzle hole group 10 positioned on the end side is formed shorter than the nozzle hole group 10 positioned on the center side. It is assumed that the inclination of the nozzle hole group 10 is constant from the center to the right side and the left side.

  In the case of this modification, the nozzle hole group 10 located on the end side is arranged in a shorter range in the insertion direction than in the case where the length of the nozzle hole group 10 is made constant. Accordingly, it is possible to further reduce the depth required to accommodate the hand and further improve the usability.

  This modification may be applied to the slit-like nozzle hole 15. In this case, the nozzle hole 15 located on the end side is formed shorter than the nozzle hole 15 located on the center side. In this case as well, the same effect as when a plurality of nozzle hole groups 10 are employed can be obtained.

  FIG. 13 is a plan view of the first nozzle portion 6 of the fifth modification. The first nozzle portion 6 of the present modification includes a plurality of nozzle hole groups 10 that are arranged in an obliquely parallel manner with respect to a part of the nozzle hole groups 10 located on the center side among the plurality of nozzle hole groups 10. The nozzle hole group 10 positioned at the position has a plurality of nozzle holes 12 arranged substantially horizontally in parallel.

  Also in this modification, the nozzle hole group 10 located on the end side is arranged within a short range in the insertion direction. Accordingly, it is possible to further reduce the depth required to accommodate the hand and further improve the usability.

  This modification may be applied to the slit-like nozzle hole 15. In this case, among the plurality of nozzle holes 15, some of the nozzle holes 15 located on the center side are formed obliquely, and the nozzle holes 15 located on the end side are formed substantially horizontally. In this case as well, the same effect as when a plurality of nozzle hole groups 10 are employed can be obtained.

  The configurations of the modified examples may be combined as appropriate. For example, the configurations of the third to fifth modified examples may be applied to the configuration of the second modified example. The hand dryer is not limited to the case where the first nozzle unit 6 and the second nozzle unit 7 have the configuration described in the present embodiment. The hand-drying device may be configured as long as at least one of the first nozzle portion 6 and the second nozzle portion 7 is described in the present embodiment.

Embodiment 2. FIG.
FIG. 14 is a schematic diagram illustrating a characteristic part of the hand dryer according to the second embodiment of the present invention. In the present embodiment, the nozzle hole group 10 constituting the first nozzle part 6 and the nozzle hole group 10 constituting the second nozzle part 7 are arranged so as not to face each other. It is characterized by. In FIG. 14, in order to explain the positional relationship of the nozzle hole group 10 in the first nozzle unit 6 and the second nozzle unit 7, the plane configuration of the second nozzle unit 7 is changed to the plane configuration of the first nozzle unit 6. The structure is shown in an overlapping manner.

  The configuration of the nozzle hole group 10 in the first nozzle portion 6 and the configuration of the nozzle hole group 10 in the second nozzle portion 7 are both the same as in the first embodiment. When the planar configuration of the first nozzle portion 6 and the planar configuration of the second nozzle portion 7 are overlapped, the nozzle hole group 10 of the first nozzle portion 6 and the nozzle hole group 10 of the second nozzle portion 7 are alternately arranged. Lined up.

  The nozzle hole group 10 of the first nozzle part 6 faces the position of the second wall part 5 other than the position where the nozzle hole group 10 of the second nozzle part 7 is formed. In addition, the nozzle hole group 10 of the second nozzle portion 7 faces the position of the first wall portion 4 other than the position where the nozzle hole group 10 of the first nozzle portion 6 is formed.

  Also in the present embodiment, as in the first embodiment, the product size is not increased, the air flow back to the user and the splashing of water droplets can be prevented, and the user-friendliness is improved. Can do. Moreover, in this Embodiment, the collision with the high pressure airflow ejected from the 1st nozzle part 6 and the high pressure airflow ejected from the 2nd nozzle part 7 can be reduced.

  The main causes of noise generation of the hand dryer are as follows: driving sound of the blower 8, blowing sound generated by the high pressure air flow from the first nozzle part 6 and the second nozzle part 7, There is a collision sound caused by a collision. In order to suppress the ejection noise and the collision noise, there is a measure to reduce the wind speed or the volume of the high-pressure air flow ejected from the first nozzle section 6 and the second nozzle section 7, but this leads to deterioration of the drying performance. Become. According to the present embodiment, it is possible to reduce the noise of the hand dryer by suppressing the collision sound of the high-pressure air flow.

  In addition, this Embodiment is not restricted to the case where the nozzle hole group 10 is the structure by which the 1st nozzle part 6 and the 2nd nozzle part 7 do not face completely. At least a part of the nozzle holes 12 constituting the first nozzle part 6 is directly opposed to a position other than the position where the nozzle hole 12 constituting the second nozzle part 7 is formed in the second wall part 5. In addition, at least a part of the nozzle holes 12 constituting the second nozzle part 7 is opposed to a position of the first wall part 4 other than the position where the nozzle hole 12 constituting the first nozzle part 6 is formed. Thus, it is possible to obtain an effect of reducing noise. In addition, the configuration of any of the modifications of the first embodiment may be applied to at least one of the first nozzle portion 6 and the second nozzle portion 7.

  FIG. 15 is a diagram for explaining a modification of the present embodiment. The first nozzle portion 6 has a nozzle hole group 10 that is inclined as in the first embodiment. On the other hand, the second nozzle portion 7 is provided so that a plurality of nozzle holes 12 are arranged in parallel on a straight line 11 in any nozzle hole group 10.

  In the case of this modification, since most of the nozzle holes 12 do not face each other between the first nozzle portion 6 and the second nozzle portion 7, noise can be reduced. In general, the palm side is sensitive, and the water droplets adhering to the palm side increase by rubbing the palms together during hand washing. For this reason, when the configuration of the first embodiment is applied to only one of the first nozzle portion 6 and the second nozzle portion 7, the first nozzle portion 6 located on the user side is closer to the first nozzle portion 6. It is desirable to apply the configuration of the first embodiment. As a result, noise can be reduced, and an effect of reducing airflow blowback and water droplet scattering can be obtained.

  The present embodiment may be applied to the slit-like nozzle hole 15. In this case, at least a part of the nozzle holes 15 constituting the first nozzle part 6 is located at a position other than the position where the nozzle holes 15 constituting the second nozzle part 7 are formed in the second wall part 5. At least a part of the nozzle holes 15 that constitute the second nozzle part 7 face each other at a position other than the position where the nozzle holes 15 that constitute the first nozzle part 6 are formed in the first wall part 4. Make them face up. Also in this case, the effect of reducing the noise of the hand dryer can be obtained.

Embodiment 3 FIG.
FIG. 16 is a perspective view of a hand dryer according to the third embodiment of the present invention. The hand drying device according to the present embodiment includes a hand insertion portion 3 formed so that a hand can be inserted and removed from a hand insertion port, a nozzle portion 21 that ejects a high-pressure air flow to the hand insertion portion 3, and a hand insertion portion 3. And a water receiving portion 22 provided at a position facing the nozzle portion 21.

  The nozzle unit 21 is configured in the same manner as the first nozzle unit 6 or the second nozzle unit 7 of the first embodiment. The nozzle portion 21 is composed of a plurality of nozzle hole groups 10 (see FIG. 3). A plurality of nozzle hole groups 10 are provided from the central portion of the manual insertion portion 3 to one end portion side and from the central portion to the other end portion side. Each nozzle hole group 10 is formed by arranging a plurality of nozzle holes 12 in a substantially straight line. Each nozzle hole group 10 includes a plurality of nozzle holes 12 positioned on the center side of the manual insertion portion 3 such that the nozzle holes positioned on the front side of the insertion and the nozzle holes positioned on the end side of the manual insertion portion 3 are on the insertion back side. The nozzle holes 12 are arranged obliquely in parallel. Further, each nozzle hole group 10 is arranged so that the nozzle holes 12 located on the center side of the hand insertion portion 3 are on substantially the same straight line 11.

  In the case of the present embodiment as well, it is possible to prevent the air flow and the water droplets from being blown back to the user without increasing the product size, and it is possible to obtain a hand drying device that is convenient for the user.

  The present embodiment may be applied to the slit-like nozzle hole 15 (see FIG. 6). In this case, the nozzle portion 21 is configured by providing a plurality of slit-like nozzle holes 15. A plurality of nozzle holes 15 are provided on each of the hand insertion portion 3 from the center portion to one end portion side and from the center portion to the other end portion side. The nozzle hole 15 is formed obliquely so that the center side portion of the hand insertion portion 3 is the front insertion side and the end portion side of the hand insertion portion 3 is the insertion back side. Further, the nozzle holes 15 are arranged so that the central side portions of the manual insertion portion 3 are on substantially the same straight line 11. Even when a plurality of slit-shaped nozzle holes 15 are provided, the same effect as when a plurality of nozzle hole groups 10 are provided can be obtained.

  Further, the nozzle unit 21 may apply any of the configurations of the modifications of the first embodiment. The nozzle portion 21 has a configuration in which, for example, the nozzle hole group 10 or the nozzle hole 15 positioned on the center side is positioned closer to the insertion side than the nozzle hole group 10 or the nozzle hole 15 positioned on the end side (from FIG. 8). (See FIG. 10). In this case, it is possible to further suppress the air flow back to the user and the scattering of water droplets.

  The nozzle portion 21 further has a configuration in which the inclination of the nozzle hole group 10 or the nozzle hole 15 is changed (see FIG. 11), and the nozzle hole group 10 or the nozzle hole 15 located on the end side is located on the center side. The nozzle hole group 10 or the nozzle hole 15 is configured to be shorter than the nozzle hole group 10 or the nozzle hole 15 (see FIG. 12). You may apply the structure (refer FIG. 13) which arranged the group 10 or the nozzle hole 15 substantially horizontally.

  As described above, the hand-drying device according to the present invention is useful as a hand-drying device installed in a toilet or a hand-washing place, and is particularly suitable for installation in a narrow space.

DESCRIPTION OF SYMBOLS 1 Main body 2 Hand insertion port 3 Hand insertion part 4 1st wall part 5 2nd wall part 6 1st nozzle part 7 2nd nozzle part 8 Blower 9 Drain tank 10 Nozzle hole group 11 Straight line 12, 15 Nozzle hole 21 Nozzle part 22 Water receiving part

Claims (19)

A first wall portion and a second wall portion facing the first wall portion are provided, and a hand can be inserted / removed from the hand insertion port between the first wall portion and the second wall portion. A formed hand insertion portion;
A first nozzle part provided on the first wall part for ejecting a high-pressure air flow;
A second nozzle part provided on the second wall part for ejecting a high-pressure air flow,
At least one of the first nozzle part and the second nozzle part has a nozzle hole group in which a plurality of nozzle holes are arranged in a substantially linear shape, from the center part of the manual insertion part to one end side, And a plurality are provided on each of the other end side from the central portion,
In the nozzle hole group, the plurality of nozzles are arranged such that a nozzle hole located on the center side of the manual insertion portion is on the front side of the insertion and a nozzle hole located on the end side of the manual insertion portion is on the insertion back side. Align the holes diagonally ,
Among the nozzle hole groups adjacent to each other in the direction from the central portion to the end portion side, the nozzle hole at the end on the near side of the insertion side among the nozzle hole groups on the end portion side is the nozzle hole on the central portion side. A hand drying device , wherein the hand drying device is located closer to the insertion side than the nozzle hole at the end of the insertion side in the group . A first wall portion and a second wall portion facing the first wall portion are provided, and a hand can be inserted / removed from the hand insertion port between the first wall portion and the second wall portion. A formed hand insertion portion;
A first nozzle part provided on the first wall part for ejecting a high-pressure air flow;
A second nozzle part provided on the second wall part for ejecting a high-pressure air flow,
At least one of the first nozzle part and the second nozzle part has a nozzle hole formed in a slit shape on one end side from the center part of the manual insertion part and on the other end from the center part. A plurality are provided on each side,
The nozzle hole is formed obliquely so that the portion on the center side of the hand insertion portion is on the front side of insertion, and the portion on the end portion side of the hand insertion portion is on the insertion back side ,
Among the nozzle holes adjacent to each other in the direction from the center portion to the end portion side, the end on the near side of the nozzle hole on the end portion side is the back of the insertion hole on the nozzle hole on the center portion side. A hand-drying device, which is located closer to the insertion side than the end on the side .   The hand-drying device according to claim 1, wherein the plurality of nozzle hole groups are arranged such that the nozzle holes located on the center side are on substantially the same straight line.   The hand drying apparatus according to claim 2, wherein the plurality of nozzle holes are arranged such that the portions on the center side are on substantially the same straight line.   2. The plurality of nozzle hole groups, wherein the nozzle hole group located on the end side is provided on the insertion back side with respect to the nozzle hole group located on the center side. Hand dryer.   3. The hand dryer according to claim 2, wherein the plurality of nozzle holes include nozzle holes located on the end side closer to the insertion back side than nozzle holes located on the center side. .   The nozzle hole group located on the end side is formed such that the inclination of juxtaposing the plurality of nozzle holes is closer to the horizontal direction than the nozzle hole group located on the center side. The hand dryer according to any one of claims 1, 3 and 5.   6. The hand-drying according to claim 1, wherein the nozzle hole group located on the end side is formed shorter than the nozzle hole group located on the center side. apparatus.   Among the plurality of nozzle hole groups, for some nozzle hole groups located on the center side, the plurality of nozzle holes are arranged obliquely in parallel, and the nozzle hole group located on the end side is 6. The hand drying device according to claim 1, wherein the nozzle holes are arranged substantially horizontally.   The nozzle hole located on the end portion side is formed so that the inclination is closer to the horizontal direction than the nozzle hole located on the center portion side. The hand dryer as described in one.   The hand dryer according to claim 2, wherein the nozzle hole located on the end side is formed shorter than the nozzle hole located on the center side.   The nozzle holes located on the central portion side among the plurality of nozzle holes are formed obliquely, and the nozzle holes located on the end portion side are formed substantially horizontally. The hand drying apparatus according to any one of 2, 4, and 6. At least a part of the nozzle holes constituting the first nozzle part is directly opposed to a position other than the position where the nozzle hole constituting the second nozzle part is formed in the second wall part,
At least a part of the nozzle holes constituting the second nozzle part is directly opposed to a position other than the position where the nozzle hole constituting the first nozzle part is formed in the first wall part. The hand dryer according to any one of claims 1 to 12. A hand insertion portion formed so that a hand can be inserted and removed from the hand insertion port;
A nozzle part for ejecting a high-pressure air flow to the manual insertion part;
A water receiving portion provided at a position facing the nozzle portion of the manual insertion portion,
The nozzle part includes a group of nozzle holes in which a plurality of nozzle holes are arranged in a substantially straight line, from the center part of the hand insertion part to one end side and from the center part to the other end part side, respectively. There are several,
In the nozzle hole group, the plurality of nozzles are arranged such that a nozzle hole located on the center side of the manual insertion portion is on the front side of the insertion and a nozzle hole located on the end side of the manual insertion portion is on the insertion back side. Align the holes diagonally ,
Among the nozzle hole groups adjacent to each other in the direction from the central portion to the end portion side, the nozzle hole at the end on the near side of the insertion side among the nozzle hole groups on the end portion side is the nozzle hole on the central portion side. A hand drying device , wherein the hand drying device is located closer to the insertion side than the nozzle hole at the end of the insertion side in the group . A hand insertion portion formed so that a hand can be inserted and removed from the hand insertion port;
A nozzle part for ejecting a high-pressure air flow to the manual insertion part;
A water receiving portion provided at a position facing the nozzle portion of the manual insertion portion,
The nozzle part is provided with a plurality of nozzle holes formed in a slit shape from the center part of the hand insertion part to one end side, and from the center part to the other end side,
The nozzle hole is formed obliquely so that the portion on the center side of the hand insertion portion is on the front side of insertion, and the portion on the end portion side of the hand insertion portion is on the insertion back side ,
Among the nozzle holes adjacent to each other in the direction from the center portion to the end portion side, the end on the near side of the nozzle hole on the end portion side is the back of the insertion hole on the nozzle hole on the center portion side. A hand-drying device, which is located closer to the insertion side than the end on the side .   The hand-drying device according to claim 14, wherein the plurality of nozzle hole groups are arranged such that the nozzle holes located on the center side are on substantially the same straight line.   The hand-drying device according to claim 15, wherein the plurality of nozzle holes are arranged so that the portions on the center side are on substantially the same straight line.   15. The plurality of nozzle hole groups, wherein the nozzle hole group located on the end side is provided on the insertion back side with respect to the nozzle hole group located on the center side. Hand dryer.   The hand-drying device according to claim 15, wherein the plurality of nozzle holes are provided such that a nozzle hole located on the end side is closer to the insertion side than a nozzle hole located on the center side. .

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