JP2008005883A - Hand dryer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hand dryer capable of nearly evenly drying fingers from the thumb to the little finger. <P>SOLUTION: The hand dryer 100 comprises a body casing 1 with a built-in high-pressure air current generating device, a hand insertion slot 2a formed at the upper part of the body casing 1, a hand drying chamber formed in the rear of the hand insertion slot 2a, and nozzles disposed in a front wall 2b and a rear wall 2c of the hand insertion slot 2a for jetting high-pressure air fed from the high-pressure air current generating device. The distance between the front wall 2b and the rear wall 2c of the hand insertion slot 2a is narrower at the center in the left/right direction. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a hand drying device that blows air on a wet hand after washing to dry it hygienically.

  As a conventional hand-drying device, a high-pressure air flow that generates a high-speed air flow provided in the box body in a U-shaped hand insertion portion that opens on the front and side surfaces of the box body and has a size that can accommodate a hand. A hand-drying device configured to eject a high-speed air flow from nozzles respectively disposed on two opposite surfaces of the manual insertion portion by the generator, and supplying air to the high-pressure air flow generator There is one in which a suction port which is an inlet end of a suction path to be performed is provided on the outer surface of the box body excluding the manual insertion portion of the box body (for example, see Patent Document 1).

Japanese Patent Application Laid-Open No. 07-116076

  However, the above-described conventional hand drying apparatus ejects a high-speed air flow from the nozzles respectively disposed on two surfaces of the hand insertion portion that are opposed to each other. When the hand is naturally inserted into the hand insertion part, the thumb is at the center part in the left-right direction of the hand insertion part and at a position farther from the nozzle of the rear wall part of the hand insertion part than the other fingers. Since it is inserted, the jet velocity that blows on the thumb is attenuated more than the jet velocity that blows on other fingers. For this reason, there is a problem that when the entire hand is almost dry, the thumb with a large amount of water droplets attached compared to other fingers becomes insufficiently dried.

  This invention is made | formed in view of the above, Comprising: It aims at obtaining the hand-drying apparatus which can dry from thumb of a hand to a little finger substantially uniformly.

  In order to solve the above-described problems and achieve the object, the present invention includes a main body casing incorporating a high-pressure airflow generator, a hand insertion port formed in an upper portion of the main body casing, and a back of the hand insertion port. In the hand drying device comprising: the formed hand drying chamber; and a nozzle that is provided on a front wall portion and a rear wall portion of the hand insertion port and that ejects high-pressure air supplied from the high-pressure airflow generation device, The distance between the front wall portion and the rear wall portion of the hand insertion port is narrower toward the center in the left-right direction.

  According to the present invention, since the interval between the front wall portion and the rear wall portion of the hand insertion port is narrowed toward the center portion in the left-right direction, the thumb and the nozzle inserted into the center portion in the left-right direction of the hand insertion port. The distance is smaller than the distance between the other finger and the nozzle, and the jet velocity that blows on the thumb with a large amount of water droplets attached compared to the index finger, middle finger, ring finger, and little finger is not attenuated. There is an effect that it can be dried substantially uniformly.

  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 is a longitudinal sectional view showing an embodiment of a hand dryer according to the present invention, FIG. 2 is a top view showing an embodiment of the hand dryer according to the present invention, and FIG. It is a figure which shows the state which inserted two hands naturally in the hand insertion part of the hand dryer of embodiment shown in FIG. 2, FIG. 4 shows other embodiment of the hand dryer concerning this invention. FIG. 5 is a top view showing still another embodiment of the hand dryer according to the present invention.

  As shown in FIG. 1, the hand drying apparatus 100 according to the embodiment has a hand insertion port 2a formed in the upper part of a rectangular box-like main body casing 1, and a lower side (back) of the hand insertion port 2a has a side view. A U-shaped hand drying chamber 2 is formed. Both sides of the hand drying chamber 2 are open.

  A blower 3 as a high-pressure airflow generator is installed below the hand drying chamber 2 in the main body casing 1, and the front nozzle 4a and the rear wall 2c provided on the front wall 2b of the hand insertion port 2a. A high-pressure air stream is ejected from the rear nozzle 4b provided in the hand, and the hand inserted in the hand drying chamber 2 is blown off into the hand drying chamber 2 to dry the hands.

  The hand insertion port 2a and the hand drying chamber 2 are configured such that both hands in the aligned state can be inserted / removed in the vertical direction or the diagonal vertical direction, and a drain port 5 is formed at the bottom of the hand drying chamber 2. . A water distribution pipe 6 is connected to the drain port 5, and the water distribution pipe 6 guides drain water at the bottom of the hand drying chamber 2 to a drain tank 7 that is detachably installed at the bottom of the main casing 1.

  The blower 3 includes a DC brushless motor (not shown) (which may be a normal commutator motor or an induction electric motor), a control unit, and a turbo fan or a centrifugal fan driven by the DC brushless motor. It is controlled automatically by the unit.

  The air inlet 8 of the blower 3 is connected to a chamber 12 and an air intake duct 11 formed in the main body casing 1, and external air is passed through the filter 10 from the air inlet 9 of the air intake duct 11 provided on the bottom surface of the main body casing 1. Inhale.

  The blower outlet of the blower 3 is connected to exhaust ducts 13, 13 that are bifurcated into a front side and a rear side of the hand drying chamber 2. The ends of the branched exhaust ducts 13 and 13 are arranged in the left-right direction line shape on the front nozzle 4a arranged in the left-right direction line shape on the front wall portion 2b of the hand insertion port 2a and the rear wall portion 2c. It is connected to the side nozzle 4b. The nozzles 4 a and 4 b convert the high-pressure air sent from the blower 3 into a high-speed air stream and eject the high-pressure air into the hand insertion port 2 a and the hand drying chamber 2.

  The two sets of nozzles 4a and 4b are provided on the front wall portion 2b and the rear wall portion 2c of the hand insertion port 2a so as to face each other in the left-right direction line with the jet port slightly downward. When a hand is put into the drying chamber 2, sensors (not shown) provided on the front wall portion 2b and the rear wall portion 2c of the hand insertion port 2a detect insertion of the hand and operate the blower 3.

  When the blower 3 is activated, air is sucked into the blower 3 through the suction port 9, the intake duct 11, the chamber 12, and the suction port 8 of the blower 3, and is pressurized and blown out from the nozzles 4a and 4b. . A high-speed air current is sprayed on the inserted hand, and moisture attached to the hand is blown into the hand drying chamber 2 without rubbing the hand, and the hand is dried. The water droplets blown off adhere to the inner wall of the hand drying chamber 2 and flow downward, and flow into the drain tank 7 through the drain pipe 6 from the drain port 5.

  FIG. 2 is a top view showing an embodiment of the hand dryer according to the present invention, and FIG. 3 naturally places two hands in the hand insertion portion of the hand dryer of the embodiment shown in FIG. It is a figure which shows the state inserted. As shown in FIG. 2, in the hand drying apparatus 100 according to the embodiment of the present invention, the rear wall portion 2c of the hand insertion port 2a provided with the rear nozzle 4b is moved to the hand insertion port 2a toward the center in the left-right direction. It forms so that it may overhang, and the space | interval of the front wall part 2b and the rear wall part 2c of the hand insertion port 2a is made narrow at the center part of the left-right direction.

  When the rear wall 2c is formed so as to protrude toward the center in the left-right direction, as shown in FIG. 3, the rear nozzle 4b provided at the center of the rear wall 2c is close to the thumb 21 and the index finger 22. Compared with the middle finger 23, ring finger 24 and pinky finger 25, the amount of water droplets adhering to the thumb 21 with a large amount of water droplets is not attenuated, and the water droplets are blown off to make the hand thumb 21 to the little finger 25 substantially uniform. dry.

  FIG. 4 is a top view showing another embodiment of the hand dryer according to the present invention. As shown in FIG. 4, the hand dryer 200 according to the embodiment of the present invention stretches the front wall 2b of the hand insertion slot 2a provided with the front nozzle 4a to the hand insertion slot 2a toward the center in the left-right direction. It forms so that it may come out, and the center part of the left-right direction is narrowed.

  If the front wall 2b is formed so as to protrude toward the center in the left-right direction, the front nozzle 4a provided at the center of the front wall 2b is very close to the thumb 21, and the index finger 22, middle finger 23, ring finger 24 In addition, the speed of the jet sprayed onto the thumb 21 having a larger amount of water droplets attached than the little finger 25 is not attenuated, and the water droplets are blown off to dry the thumb 21 to the little finger 25 substantially uniformly.

  FIG. 5 is a top view showing still another embodiment of the hand dryer according to the present invention. As shown in FIG. 5, the hand dryer 300 according to the embodiment of the present invention includes a front wall portion 2b of a hand insertion port 2a provided with a front nozzle 4a and a hand insertion port provided with a rear nozzle 4b. Both the rear wall portions 2c of 2a are formed so as to protrude toward the manual insertion opening 2a toward the center in the left-right direction, and narrower toward the center in the left-right direction.

  When both the front wall portion 2b and the rear wall portion 2c are formed so as to protrude toward the hand insertion port 2a toward the center portion in the left-right direction, the nozzle 4a provided at the center portion of the front wall portion 2b and the rear wall portion 2c, 4b is close to the thumb 21 and the jet velocity sprayed on the thumb 21 with a larger amount of water droplets attached than the index finger 22, the middle finger 23, the ring finger 24 and the little finger 25 is not attenuated, and the thumb 21 from the thumb 21 to the little finger 25 Is dried almost uniformly.

  As described above, the hand drying apparatus according to the present invention is useful as a device that can dry the thumb from the thumb to the little finger substantially uniformly.

It is a longitudinal section showing an embodiment of a hand dryer concerning the present invention. It is a top view which shows embodiment of the hand-drying apparatus concerning this invention. It is a figure which shows the state which inserted two hands naturally in the hand insertion part of the hand dryer shown in FIG. It is a top view which shows other embodiment of the hand-drying apparatus concerning this invention. It is a top view which shows other embodiment of the hand-drying apparatus concerning this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main body casing 2 Hand drying chamber 2a Hand insertion part 2b Front wall part 2c Rear wall part 3 Blower (high pressure air generator)
4a Front nozzle (nozzle)
4b Rear nozzle (nozzle)
5 Drain port 6 Drain pipe 7 Drain tank 8 Blower inlet 9 Suction port 10 Filter 11 Intake duct 12 Chamber 13 Exhaust duct 100,200,300 Hand dryer

Claims (2)

A body casing containing a high-pressure airflow generator,
A hand insertion port formed at the top of the main body casing and a hand drying chamber formed at the back of the hand insertion port;
A nozzle that is provided on a front wall portion and a rear wall portion of the manual insertion port, and that ejects high-pressure air supplied from the high-pressure airflow generator;
In a hand dryer comprising:
The hand dryer characterized by narrowing the space | interval of the front wall part and rear wall part of the said hand insertion port toward the center part of the left-right direction.   The hand drying device according to claim 1, wherein a front wall portion and / or a rear wall portion of the hand insertion port is formed so as to protrude from the hand insertion port toward a center portion in the left-right direction.

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