JP6028212B2 - Hand dryer - Google Patents

Description

  The present invention relates to a hand dryer.

  Conventionally, a hand dryer sends air sucked from a suction port through a motor and dries the hand, and as a method for achieving high-speed hand drying, a jet flowing from the nozzle is used. One that reciprocates at high speed is known (for example, see Patent Document 1).

  As shown in FIG. 4, the plurality of nozzle portions 101 are connected to each nozzle portion reciprocating means 102, and by reciprocating the nozzle portions 101, the nozzle portions 101 can be moved widely to the hand drying space 103 while maintaining the jet velocity. Hand drying can be performed without drying unevenness by applying wind.

JP 2008-80100 A

  In such a conventional hand drying apparatus, if a plurality of nozzles that reciprocate the jet flow in a substantially horizontal direction with respect to the hand insertion direction are attached to the main body in order to improve the hand drying performance, the cost for the additional function is increased. Had the problem of doing.

  Therefore, the present invention is to solve the above-described conventional problems, and an object of the present invention is to provide a hand-drying device that can suppress additional costs even when a nozzle that reciprocates a plurality of jets is attached to the main body. To do.

  In order to achieve this object, the present invention is characterized by providing one nozzle part reciprocating means connected to a plurality of nozzle parts, operating the nozzle part reciprocating means, and reciprocating the plurality of nozzles. This is to achieve the intended purpose.

According to the present invention, provided one nozzle portion reciprocating means connected to the plurality of nozzle portions, by operating the nozzle portion reciprocating means, by which a configuration that is a plurality of the nozzles back and forth, one of the nozzle portion reciprocating means the by operating can reciprocate a plurality of nozzle sections, since the nozzle portion reciprocating means do not use multiple, it can be attached to the nozzle of the plurality of reciprocating in the body to suppress the additional cost.

1 is a schematic longitudinal sectional view showing the configuration of a hand dryer according to Embodiment 1 of the present invention. (A) Schematic cross-sectional view showing the nozzle drive part connecting means by the gear of the hand dryer, (b) Cross-sectional schematic view showing the nozzle drive part connecting means by the shaft Detailed view of the nozzle showing the configuration of the hand dryer according to the second embodiment of the present invention Schematic diagram showing the configuration of a conventional hand dryer

Hand drying apparatus according to the present invention includes a plurality of nozzle portion for delivering air to the hand drying space having an open top, and reciprocating means for reciprocating the jets emanating from said plurality of nozzle sections, the air to the plurality of nozzle sections a plurality of fan motor for sending, and a motor casing for supporting said fan motor, a hand dryer comprising a body casing, an intake port for delivering air by the fan motor which forms an outer shell, wherein The plurality of nozzle portions are composed of a plurality of first nozzle portions and a plurality of second nozzle portions facing each other, and one nozzle portion reciprocating means connected to the plurality of first nozzle portions and the plurality of second nozzle portions is provided. The nozzle unit reciprocating means is operated to reciprocate the plurality of first nozzle units and the plurality of second nozzle units . Accordingly, since the plurality of nozzle portions are reciprocated only by operating only one nozzle portion reciprocating means, even if a plurality of reciprocating nozzle portions are attached to the main body, an additional cost can be suppressed.

  Moreover, you may make it the structure which connects a some nozzle part and a nozzle part reciprocation means with a some gear. As a result, torque can be controlled because a plurality of nozzle parts are reciprocated by a single nozzle part reciprocating means in the configuration of the connected gears, so the nozzle part reciprocating means required when a plurality of nozzle parts are connected. There is an effect that the torque can be secured.

  Moreover, you may make it the structure which makes a some nozzle part two nozzle parts, and connects to the shaft on the same axis | shaft which is one nozzle part reciprocation means. As a result, the two nozzle parts are driven by one nozzle part reciprocating means so that the number of reciprocations coincides perfectly, so that the number of reciprocations of the opposing nozzles does not deviate. There is an effect that it is possible to reduce beat noise caused by the collision interval mismatch.

  Moreover, you may make it the structure that the reverse end of the nozzle part reciprocation means in the shaft which transmits reciprocating motion is hold | maintained. As a result, both ends of the shaft for transmitting power are held, and power transmission for reciprocating the nozzle is stabilized, so that the reciprocating motion of the nozzle portion can be stabilized and noise can be reduced.

  The shaft reverse end may be held by a bearing. As a result, both ends of the shaft for transmitting power are held by bearings, and power transmission for reciprocating the nozzle is further stabilized, so that the reciprocating motion of the nozzle portion can be further stabilized and noise can be reduced. Play.

  Alternatively, the nozzle unit reciprocating means may be arranged above the nozzle unit in the main body casing that is not exposed to water. As a result, even when water enters from the nozzle part where water easily enters the main body casing, it is located above the nozzle part reciprocating means, so that it is difficult for water to reach by gravity. In addition, the water countermeasure of the nozzle unit reciprocating means can be solved only by arrangement, and the cost can be reduced.

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

(Embodiment 1)
As shown in FIG. 1, a hand drying space 1 for drying a hand is formed by being surrounded by a plurality of nozzle portions 2 for sending out a plurality of air, and has an open upper surface where a hand can be easily inserted during use. The hand-drying space 1 uses an ABS resin, and has various added values such as flame retardancy and chemical resistance by adding various additives. The nozzle part 2 is provided with a nozzle part reciprocating means 3 for reciprocating the nozzle tip in order to achieve high-speed drying of the hand. The plurality of nozzle parts 2 are connected to one nozzle part reciprocating means 3, and the plurality of nozzle parts 2 are reciprocated by operating one nozzle part reciprocating means 3. One way to perform this reciprocating motion is to convert from rotational motion to reciprocating motion using a motor and crank, and connect elastic rubber made of silicon or the like as a nozzle and use it as a movable air outlet There is a way to do it. The jet flow from the nozzle unit 2 is swung left and right to cover a wide range of the jet arrival position, and the water droplets attached to the hand are wiped off while being peeled off in the reciprocating direction of the nozzle. The plurality of fan motors 4 for sending air to the nozzle unit 2 require a large air volume and use high-pressure and high-rotation AC commutator motors. As the fan motor, a DC brushless motor having a long service life can be used. The motor casing 5 that supports the fan motor 4 is made of rubber or the like and completely sealed except for the air flow path, and it is desirable to use glass-filled PBT or the like from the viewpoint of safety that generates high pressure and heat. These outer shells are formed of a main body casing 6, and are provided with an air inlet 7 for sending air by the fan motor 4. The air volume of the fan motor 4 is provided with a control means 8 such as a microcomputer capable of controlling pulses such as phase control via a power supply board. The control means 8 controls the operation of all the hand dryers, and the nozzle reciprocating means 3 can also be controlled.

  According to such a configuration, the plurality of connected nozzle portions 2 can move all the nozzle portions 2 by moving one nozzle portion reciprocating means 3, and the cost can be suppressed regardless of the number of nozzle portions 2. Can be achieved.

  FIG. 2A shows a method using a DC brushless type small motor 9 that achieves high-speed rotation and high torque, a crank 10 and a gear 11 as a method for connecting the nozzle unit reciprocating means 3. In contrast, it is converted into a reciprocating motion in a substantially horizontal direction. The torque required to move the plurality of nozzle portions 2 increases, and the specifications required for the small motor 9 become severe. Therefore, by using the gear 11, not only can the power be transmitted to the plurality of nozzle portions 2, but the torque can be controlled by the combination of the gears 11, and a general small motor 9 can be used to reduce the cost. It is.

  2b may employ a method in which the crank 10 is directly attached to the shaft 12 coming out of the small motor 9 when the nozzle portion 2 is disposed at two opposing positions. At this time, a method of passing the shaft 12 through the lateral wall of the main body can be considered. According to this method, since the number of reciprocations of the nozzles is completely the same without any play of gears, the noise of the beat caused by the mismatch of the collision intervals of the reciprocating jets of the opposing nozzle part 2 due to the deviation during power transmission is reduced. Is possible.

  Further, by providing a support 13 at the opposite end of the shaft 12 from the small motor 9, the shaft 12 can be suppressed to stabilize power transmission and reduce drive noise. In addition, a larger effect can be obtained by supporting the support 13 with a bearing.

(Embodiment 2)
3 , the same components as those in FIG. 1 are denoted by the same reference numerals, and detailed description thereof is omitted.

FIG. 3 shows a hand-drying device in which the nozzle unit reciprocating means 3 is arranged above the opening of the nozzle unit 2 inside the main body casing 6. By adopting the above configuration, the nozzle unit in which water is relatively easy to enter the interior. Even if a water droplet enters from 2, it is very difficult for water to climb upward against gravity, so that it is possible to protect the nozzle part reciprocating means 3 that wants to avoid the entry of water or the like, and the nozzle part reciprocating means If means 3 uses electricity, it is possible to ensure safety. Therefore, it is possible to take measures against water only by arrangement, and as a result, it leads to reduction of safety measures costs.

  The manual drying apparatus according to the present invention enables an additional cost reduction when adding value accompanying an improvement in the drying performance, so that quick drying performance is required, and a plurality of installations must be installed. It is useful as a hand dryer used in places such as facilities and large factories.

DESCRIPTION OF SYMBOLS 1 Hand drying space 2 Nozzle part 3 Nozzle part reciprocation means 4 Fan motor 5 Motor casing 6 Main body casing 7 Inlet 8 Control means 9 Small motor 10 Crank 11 Gear 12 Shaft 13 Support

Claims (4)

A plurality of nozzles for sending air to a hand-drying space with an open upper surface;
Reciprocating means for reciprocating the jets from the plurality of nozzle portions;
A fan motor for sending air to the plurality of nozzle portions;
A motor casing for supporting the fan motor;
A body casing forming an outer shell,
A hand dryer provided with an air inlet for sending air by the fan motor,
The plurality of nozzle portions includes a plurality of first nozzle portions and a plurality of second nozzle portions facing each other,
One nozzle part reciprocating means connected to the plurality of first nozzle parts and the plurality of second nozzle parts is provided, the nozzle part reciprocating means is operated, and the plurality of first nozzle parts and the plurality of second nozzles Reciprocating part ,
The nozzle part reciprocating means comprises a small motor, a shaft and a crank,
The shaft is connected to the small motor;
The hand drying device, wherein the plurality of first nozzle portions and the plurality of second nozzle portions are connected to the shaft via the crank . The hand dryer according to claim 1 , wherein a reverse end of the nozzle unit reciprocating means in the shaft transmitting the reciprocating motion is held by a bearing. The hand dryer according to claim 1 , wherein the shaft passes through a lateral wall of the main body casing. The hand-drying device according to claim 1, wherein the nozzle unit reciprocating means is disposed above the plurality of nozzle units in the main body casing not covered with water.

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