JP4720264B2 - Hand dryer - Google Patents

Description

  The present invention relates to a hand drying device that dries a wet hand when the hand is washed in a bathroom or a toilet.

  Conventionally, this type of manual drying apparatus has a fan motor at the top of the drying space, blows air from above the drying space and has a water receiving portion at the bottom, and the bottom of the water receiving portion has a high center. Protruding walls with a low slope on the left and right are provided. And the hand-drying apparatus which diverts the blowing airflow from a blowing nozzle to right and left with a protruding wall, guides a water droplet to the drain hole provided in right and left, and prevents scattering of the water droplet to a user and the circumference | surroundings is known. (For example, refer to Patent Document 1).

  Further, a hand drying device is known that performs drying by inserting a hand into a space that blows air from both sides (see, for example, Patent Document 2).

Further, a hand dryer that includes a fan motor in the upper part of the drying space and blows air from above the drying space is known (see, for example, Patent Document 2).
Japanese Patent Laid-Open No. 10-99235 JP 05-293055 A

  In the conventional hand drying apparatus shown in Patent Document 1, in order to dry the hand, it is only necessary to hold the hand forward and dry it without inserting a hand by bending as in Patent Document 2. However, although there is an effect that the water droplets collected in the lower water receiving portion can be reduced, the water receiving portion is shallow, but some of the water droplets remain scattered.

  As in the present invention, the drying chamber is wide and the lower portion of the drying space has a bottom surface having a drain outlet, back surfaces, both side surfaces, and fingers formed in a concave shape by the front surface. Since it has a depth enough to enter completely, water droplets accumulated on the bottom face hardly fly out and scatter to the user and the surroundings.

  However, since it is deep enough to allow the fingers of the hand to enter completely, even when the hand is inserted into the drying space, the airflow from the blowing nozzle can be diverted to the left and right by the protruding wall. Since the airflow swirls inside and blows up from the front, the airflow hits the user and gives the user an unpleasant feeling.

  Therefore, an object of the present invention is to provide a hand-drying device that prevents the user from being uncomfortable by preventing the airflow from being applied to the user by diverting the airflow blown from the front surface during use and guiding the airflow in the lateral direction.

The hand drying device of the present invention according to claim 1 includes a drying chamber for inserting a hand to perform drying, a drying space formed above the drying chamber, a nozzle for ejecting warm air toward the drying chamber, A fan motor that sends out air ejected from the nozzle, the fan motor is provided below the drying chamber, the nozzle is disposed above the drying chamber, and the drying chamber has a bottom surface having a drain port; In the hand drying device formed in a concave shape by the back surface, both side surfaces, and the front surface, in the substantially central portion of the front surface of the drying chamber, it collides with the back surface of the drying chamber and the said drying chamber Providing a shunting wall with a protruding shape that shunts the return wind rising from the bottom toward the front face toward the bottom, and when the hand is inserted, the return wind that has changed its direction of contact with the hand is shunted. divert the wall, on the front side Characterized by discharging from said side surfaces corner direction of the drying chamber without the user to location the return air impinges out of the drying chamber.

  According to a second aspect of the present invention, in the hand dryer according to the first aspect, the flow dividing wall is also provided on the bottom surface.

  According to a third aspect of the present invention, in the hand drying device according to the first aspect, the flow dividing wall is provided on the inner surface.

  According to a fourth aspect of the present invention, in the hand drying apparatus according to the first aspect, the flow dividing wall is provided on the bottom surface and the back surface.

According to a fifth aspect of the present invention, in the hand drying device according to any one of the first to fourth aspects, the flow dividing wall has a lower end portion of the protruding shape provided on the front surface, the bottom surface, and the back surface. , Wider than the upper end.

According to a sixth aspect of the present invention, in the hand drying device according to the first aspect, the flow dividing wall is a substantially triangular prism, and a tip of the substantially triangular prism is formed from the front surface of the drying chamber toward the back surface. It is characterized by protruding.

According to a seventh aspect of the present invention, in the hand drying apparatus according to any one of the first to fourth aspects, the air flow blown from below is blocked at the outer edge of the drying chamber on the inner wall side, and from the front side to the rear side. It is characterized in that a step or a projection-like prevention wall for turning the wind toward the surface is provided.

According to an eighth aspect of the present invention, in the hand drying device according to the seventh aspect , the height of the tip of the stepped or protruding prevention wall is made higher than the height of the tip of the flow dividing wall.

  According to the present invention, the flow dividing wall is provided on the front surface of the inner wall surface of the drying chamber having a depth enough to allow fingers of the hand to completely enter, and the air flow rising from the bottom surface is divided by the flow dividing wall on the front surface. By adopting a configuration that guides in the lateral direction, it is possible to provide a hand dryer that can prevent the user from being exposed to an air flow and eliminate discomfort.

The hand dryer according to the first embodiment of the present invention includes a drying chamber and a drying space formed above the drying chamber, a nozzle, and a fan motor, and the fan motor is provided below the drying chamber. The nozzle is disposed above the drying chamber, and the drying chamber is formed in a concave shape by a bottom surface having a drain port, a back surface, both side surfaces, and a front surface, and is substantially in the center of the front surface of the drying chamber. Provided with a shunt wall having a protruding shape that collides with the inner surface of the drying chamber and diverts the return air rising toward the front surface from the bottom surface toward the bottom surface of the drying chamber. The return air whose direction of contact with the hand has been changed is diverted by the diverting wall , and the drying air is blown from the corners on both sides of the drying chamber without hitting the return air on the user located on the front side. To discharge outside the room It is.

  According to this embodiment, when a hand is inserted, when an airflow hitting the hand rises from the back surface along the bottom surface to the front surface, the air is shunted by the shunt wall provided on the front surface and The air is discharged from both sides to prevent the user from being exposed to the airflow.

  In the second embodiment of the present invention, in the hand dryer according to the first embodiment, the flow dividing wall is also provided on the bottom surface. According to the present embodiment, when the hand is inserted, the airflow that hits the hand flows along the inner surface, and the first diversion is made by the diversion wall provided on the bottom surface. In other words, the airflow that has flowed to the front is further diverted by a diverting wall provided on the front and discharged from both sides of the drying chamber to prevent the airflow from hitting the user.

  According to a third embodiment of the present invention, in the hand dryer according to the first embodiment, the flow dividing wall is also provided on the bottom surface of the drying chamber. According to the present embodiment, when a hand is inserted, the airflow that hits the hand first splits at the shunt wall provided on the back surface and does not completely split or turbulently flows to the front. The airflow is further diverted by the diverting wall provided on the front and discharged from both sides of the drying chamber to prevent the airflow from hitting the user.

  According to a fourth embodiment of the present invention, in the hand drying apparatus according to the first embodiment, the flow dividing wall is also provided on the back surface and the bottom surface of the drying chamber. According to the present embodiment, when the hand is inserted, the airflow hitting the hand is divided into the first diverted wall by the diverting wall provided on the back surface, and the second diverted flow is provided by the diverting wall provided on the bottom surface. The airflow that has flown to the front due to incomplete diversion or turbulent flow is further divided by the diversion wall provided on the front and discharged from both sides of the drying chamber, preventing the airflow from hitting the user It is out.

According to a fifth embodiment of the present invention, in the hand drying device according to the first embodiment, the diverting wall has a lower end portion of the protruding shape provided on the front surface, the bottom surface, and the back surface from the upper end portion. Is also wide. According to the present embodiment, when a hand is inserted, resistance when an airflow hitting the hand collides with the flow dividing wall can be suppressed, and the airflow can be smoothly divided.

According to a sixth embodiment of the present invention, in the hand dryer according to the first embodiment, the flow dividing wall has a substantially triangular prism in a longitudinal section, and is directed from the front surface to the back surface of the drying chamber. The tip of the substantially triangular prism shape is projected. According to the present embodiment, when a hand is inserted, resistance when an airflow hitting the hand collides with the flow dividing wall can be suppressed, and the airflow can be smoothly divided.

In the hand drying device according to the first to fourth embodiments, the seventh embodiment of the present invention blocks the airflow blown from below at the outer edge of the inner wall side of the drying chamber, A step is provided to turn the wind from the front side toward the back side, or a protruding prevention wall is provided. According to the present embodiment, since the airflow that rises from the bottom surface is guided in the direction of reversing the front surface, the airflow is prevented from hitting the user.

According to an eighth embodiment of the present invention, in the hand drying device according to the seventh embodiment, the tip of the protrusion is formed at a position lower than the opening end of the drying chamber. According to the present embodiment, since the protrusions do not enter the view in the installed state, the feeling of cleanliness at the time of use is enhanced, and when the user inserts the hand into the drying chamber, the discomfort that the protrusion touches the hand. Can be eliminated.

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

(Embodiment 1)
First, the external shape of the hand dryer according to Embodiment 1 will be described with reference to FIGS. 1 to 3. FIG. 1 is a perspective view of a hand dryer according to Embodiment 1 of the present invention, FIG. 2 is a front view, and FIG. The hand dryer according to the present embodiment forms a drying chamber 1 in the upper part of the apparatus body. In the drying chamber 1, an opening 3 is formed by an outer edge portion 2 that is inclined downward from the back side toward the front side, and a concave space 30 is formed below the opening 3. The concave space 30 is constituted by a bottom surface 6 having a drain port 5, a back surface 7, both side surfaces 8, and a front surface 9.

  A plate-like nozzle cover 10 is provided above the opening 3 of the drying chamber 1, and a space 31 is formed between the opening 3, the outer edge 2, and the nozzle cover 10. The concave space 30 and the space 31 are combined to form a dry space for inserting a hand.

  Next, the internal structure of the hand dryer according to Embodiment 1 will be described with reference to FIG.

  FIG. 4 is a side sectional view of the apparatus. A fan motor 11 using a DC motor is provided below the drying chamber 1, and a nozzle cover side ventilation path 12 connected to the nozzle cover 10 is provided above the fan motor 11, that is, on the back side of the drying chamber 1. Is formed. Moreover, the heater 13 is provided in the middle of these ventilation paths. A sensitivity sensor 14 for detecting insertion of a hand is provided at the lower back side of the nozzle cover 10.

  Next, the structure of the drying chamber of the hand dryer according to the first embodiment will be described with reference to FIGS. FIG. 5 is a flow chart of the entire wind when a hand is inserted into the drying space, and FIG. 6 is a flow chart of the wind on the front side of the drying chamber. The flow dividing wall 20A provided on the front surface 9 of the drying chamber 1 is located at a substantially central portion of the front surface 9 and is an inverted triangle that spreads on both side surfaces 8 from the bottom surface 6 toward the outer edge portion 2 when viewed from the B direction. . The intersection 33 between the intersection 31 between the substantially central portion of the flow dividing wall 20A and the bottom surface 6 and the outer edge 2 located at the tip of the valley 36 formed in an inverted triangle toward both side surfaces 8 is the intersection 31 described above. Is located at a position lower than the intersection point 32 located at the tip of the mountain side 37 formed toward the central portion and the outer edge portion 2 of the flow dividing wall 20A.

  In the above configuration, when a hand is inserted, the sensitivity sensor 14 detects it, and the fan motor 11 provided in the lower part of the drying chamber 1 operates to supply the air to the nozzle cover side ventilation path 12. The wind supplied to the nozzle cover side ventilation passage 12 blows out from the nozzle cover 10 toward the drying chamber 1, and the wind hitting the hand changes direction and collides with the inner surface 7 of the drying chamber 1, It faces the bottom surface 6 and rises from the bottom surface 6 toward the front surface 9. At this time, the wind that collides with the diverting wall 20A provided on the front surface 9 is diverted to the left and right by the left triangular surface 34 and the right triangular surface 35 of the diverting wall 20A, and outside the drying chamber from the front right corner 33A and the front left corner 33B. Get out. This is because the wind flows along the valley side 36 whose projection shape is lower than the mountain side 37 of the flow dividing wall 20A.

  Thereby, it is possible to use the hand dryer without causing unpleasant feeling without hitting the return wind on the user located on the front side.

(Embodiment 2)
FIG. 7 is a flowchart of the entire wind when a hand is inserted into the drying space of the hand dryer, FIG. 8 is a flowchart of the wind on the front side of the drying chamber, and the second embodiment is different from the first embodiment. A diverting wall 20B having a protruding shape is provided from the front surface 9 to the back surface 7 at a substantially central portion of the bottom surface 6 of the drying chamber. Moreover, as for the said diversion wall 20B, the protrusion-shaped lower end part is wider than the upper end part. The same parts as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

  In the above configuration, when a hand is inserted, the sensitivity sensor 14 detects it, and the fan motor 11 provided in the lower part of the drying chamber 1 operates to supply the air to the nozzle cover side ventilation path 12. The wind supplied to the nozzle cover side ventilation passage 12 blows out from the nozzle cover 10 toward the drying chamber 1, and the wind hitting the hand changes direction and collides with the inner surface 7 of the drying chamber 1, Heading to the bottom, it collides with the flow dividing wall 20B. The wind that collides with the diverting wall 20B makes an initial diversion and is diverted to the left and right. The airflow that has flown to the front surface due to being unable to be diverted or turbulent flows upward from the bottom surface 6 toward the front surface 9. At this time, the wind that has collided with the flow dividing wall 20A provided on the front surface 9 is further diverted to the left and right by the left triangular surface 34 and the right triangular surface 35 of the flow dividing wall 20A, and from the front right corner 33A and the front left corner 33B, I go outside.

  Thereby, it is possible to use the hand dryer without causing unpleasant feeling without hitting the return wind on the user located on the front side.

(Embodiment 3)
FIG. 9 is a flowchart of the entire wind when a hand is inserted into the drying space of the hand dryer, FIG. 10 is a flowchart of the wind on the front side of the drying chamber, and the third embodiment is different from the first embodiment. A diverting wall 20C having a protruding shape is provided from the bottom surface 6 to the vicinity of the nozzle cover 10 at a substantially central portion of the back surface 7 of the drying chamber. Further, in the flow dividing wall 20C, the lower end portion of the protrusion shape is wider than the upper end portion. The same parts as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

  In the above configuration, when a hand is inserted, the sensitivity sensor 14 detects it, and the fan motor 11 provided in the lower part of the drying chamber 1 operates to supply the air to the nozzle cover side ventilation path 12. The wind supplied to the nozzle cover side ventilation passage 12 blows out from the nozzle cover 10 toward the drying chamber 1, and the wind hitting the hand changes its direction and collides with a collision wall 20C provided on the inner surface of the drying chamber. . The wind that collides with the diverting wall 20C makes an initial diversion and is diverted to the left and right. The airflow that has flown to the front surface due to the partial diversion or turbulence flows toward the bottom surface 6 of the drying chamber and rises from the bottom surface 6 toward the front surface 9. At this time, the wind that has collided with the flow dividing wall 20A provided on the front surface 9 is further diverted to the left and right by the right triangular surface 34 and the left triangular surface 35 of the flow dividing wall 20A, and from the front right corner 33A and the front left corner 33B, I go outside.

  Thereby, it is possible to use the hand dryer without causing unpleasant feeling without hitting the return wind on the user located on the front side.

(Embodiment 4)
FIG. 11 is a flowchart of the entire wind when a hand is inserted into the drying space of the hand dryer, FIG. 12 is a flowchart of the wind on the front side of the drying chamber, and the third embodiment is different from the first embodiment. A flow dividing wall 20B and a flow dividing wall 20C are provided. The same parts as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

  In the above configuration, when a hand is inserted, the sensitivity sensor 14 detects it, and the fan motor 11 provided in the lower part of the drying chamber 1 operates to supply the air to the nozzle cover side ventilation path 12. The wind supplied to the nozzle cover side ventilation path 12 blows out from the nozzle cover 10 toward the drying chamber 1. That is, wind blows from the top to the bottom of the inserted hand, collides with the hand, changes its direction, and collides with the collision wall 20C provided on the inner surface of the drying chamber. The wind that collides with the shunt wall splits first and then splits left and right. The airflow that has flown to the front surface due to being unable to be diverted or turbulently flows toward the bottom surface of the drying chamber and collides with the diversion wall 20B. The wind that collides with the diverting wall 20B makes a second diversion and is diverted to the left and right. The airflow that has flown to the front surface due to being unable to be diverted or turbulently flows toward the front surface of the drying chamber, collides with the diversion wall 20A provided on the front surface, and is divided by the left triangular surface 34 and the right triangular surface 35 of the diversion wall. Further, it is divided into left and right, and comes out of the drying chamber from the front right corner 33A and the front left corner 33B.

  Thereby, it is possible to use the hand dryer without causing unpleasant feeling without hitting the return wind on the user located on the front side.

(Embodiment 5)
This will be described with reference to FIGS. 13 and 14.

  FIG. 13 is a top view of the drying chamber of the hand drying device, FIG. 14 is a side sectional view of the drying chamber, and a flow chart of the entire wind when a hand is inserted into the drying space of the hand drying device. Differences from the first embodiment will be described below.

  At the outer edge of the inner wall surface of the drying chamber, a projecting prevention wall 21 for blocking the airflow blowing from below and turning the wind back was provided. The prevention wall 21 is configured to protrude into the drying chamber 1 along the outer edge. The same parts as those in Embodiment 1 are denoted by the same reference numerals, and description thereof is omitted.

  In the above configuration, when a hand is inserted, the sensitivity sensor 14 detects it, and the fan motor 11 provided in the lower part of the drying chamber 1 operates to supply the air to the nozzle cover side ventilation path 12. The wind supplied to the nozzle cover side ventilation path 12 blows from the nozzle cover 10 toward the drying chamber 1. That is, the wind is blown from the top to the bottom of the inserted hand. The wind ejected from the nozzle cover 10 collides with the hand and changes its direction, collides with the inner surface of the drying chamber, flows toward the front surface along the drying chamber wall surface, and collides with the shunt wall. The wind that has collided with the shunt wall is shunted to the left and right along the inverted triangle of the shunt wall, and flows toward the both sides of the drying chamber where the height of the protruding shape is lower than the central portion of the front face. Further, by providing the prevention wall, the direction of the wind colliding with the prevention wall is changed to the inside of the drying chamber, so that the wind is prevented from coming out from the front.

  Thereby, it can be used without causing the user to feel uncomfortable without hitting the return wind. Moreover, when using a drying apparatus, the protrusion part provided in the front surface becomes invisible by providing the prevention wall, and the feeling of pressure to a user can be eliminated.

  The prevention walls are provided on both side surfaces 8 and the front surface 9 of the drying chamber 1, but may be provided only on the front surface 9.

  The hand dryer of the present invention can also be used in hospital operating rooms and kitchens.

The perspective view of the hand-drying apparatus of one Embodiment of this invention Front view of the device AA sectional view of the same device Side sectional view of the device Flow chart of the whole wind when inserting a hand into the drying space of the device Flow diagram of the wind on the front side of the drying chamber of the equipment Flow chart of the whole wind when inserting a hand into the drying space of one embodiment of the present invention Flow diagram of the wind on the front side of the drying chamber of the equipment Flow chart of the whole wind when inserting a hand into the drying space of one embodiment of the present invention Flow diagram of the wind on the front side of the drying chamber of the equipment Flow chart of the whole wind when inserting a hand into the drying space of one embodiment of the present invention Flow diagram of the wind when a hand is inserted into the drying space of the device The top view of the drying room of the hand dryer of one embodiment of the present invention. Side sectional view of the device and overall flow chart of the wind when a hand is inserted into the drying space

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Drying chamber 2 Outer edge part 3 Opening part 5 Drain outlet 6 Bottom face 7 Back face 8 Both side face 9 Front face 10 Nozzle cover 11 Fan motor 12 Nozzle cover side ventilation path 13 Heater 14 Sensitivity sensor 20 Dividing wall 21 Preventing wall 31 Dividing wall and Intersection with the bottom surface 32 Intersection between the center of the shunt wall and the outer edge 33 Intersection with the outer edge on both sides of the shunt wall 33A Right corner 33B Left corner 34 Right triangular surface 35 Left triangular surface 36 Valley side 37 Mountain side

Claims (8)

A drying chamber in which a hand is inserted for drying, a drying space formed above the drying chamber, a nozzle that ejects warm air toward the drying chamber, and a fan motor that sends out air ejected from the nozzle The fan motor is provided below the drying chamber, the nozzle is disposed above the drying chamber, and the drying chamber is concaved by a bottom surface having a drain, a back surface, both side surfaces, and a front surface. In the formed hand drying apparatus, at the substantially central portion of the front surface of the drying chamber, the rear surface of the drying chamber collides with the back surface and rises toward the front surface from the bottom surface toward the bottom surface of the drying chamber. Providing a shunting wall with a protruding shape that shunts the return wind coming to the left and right, when the hand is inserted, the return wind that has changed the direction of hitting the hand is shunted by the shunt wall, and the user located on the front side The return wind Hand drying apparatus which is characterized in that no discharge from the front sides corner direction of the drying chamber to the outside of the drying chamber. The hand dryer according to claim 1, wherein the flow dividing wall is also provided on a bottom surface. The hand-drying device according to claim 1, wherein the flow dividing wall is also provided on a back surface. The hand-drying device according to claim 1, wherein the flow dividing wall is also provided on a bottom surface and a back surface. The hand-drying device according to any one of claims 1 to 4, wherein the shunt wall has a lower end portion of the protruding shape provided on the front surface, the bottom surface, and the back surface wider than the upper end portion. . The hand-drying apparatus according to claim 1, wherein the flow dividing wall is a substantially triangular prism, and a tip of the substantially triangular prism projects from the front surface of the drying chamber toward the back surface. 2. A stepped or projecting prevention wall is provided at the outer edge of the drying chamber on the inner wall side to block the airflow blowing from below and to fold the wind from the front side toward the back surface. The hand dryer according to claim 4. The hand dryer according to claim 7, wherein the height of the tip of the stepped or protruding prevention wall is higher than the height of the tip of the flow dividing wall.

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