JP2008212785A - Nozzle mover - Google Patents

Abstract

In a conventional nozzle movable device, there is a problem in that the airtightness of the movable part is poor and the internal fluid easily leaks, so that the air volume ejected from the nozzle is reduced and the efficiency is deteriorated. Because there are minute gaps, minute dust in the gas flowing into the inside tends to be clogged, causing problems such as nozzle malfunction, and moving the nozzle while keeping the moving part of the nozzle sealed By making the elastic body possible, the sealing performance is improved so that the fluid inside does not leak, and there is no minute gap in the movable part of the nozzle, so there is no clogging with dust, and nozzle malfunction occurs. The object is to provide a highly reliable nozzle moving device.
The nozzle 3 is formed of a rigid body, the ejection port 4 side is a free end, and the inflow port 5 side is held by an elastic body 6. When the nozzle 3 moves, the elastic force of the elastic body 6 It expands and contracts appropriately, and has an effect that no gap is formed between the nozzle 3 and the elastic body 6.
[Selection] Figure 1

Description

  The present invention relates to a nozzle moving device that moves and jets an airflow supplied to a nozzle by a blower.

  Conventionally, for example, a method according to Patent Document 1 has been proposed as a nozzle that ejects fluid while moving the nozzle, and will be described with reference to FIG.

  A cylindrical nozzle 102 having an injection port 101 is incorporated in an inflow chamber 103 into which airflow flows, with the injection port 101 facing outside, and the nozzle 102 is swung in the inflow chamber 103 by a swirling flow caused by ventilation. There is a movable nozzle that generates motion and is capable of blowing a jet in a spiral.

  Moreover, in the hand dryer which removes the water droplet adhering to a hand by a jet, the method by which a jet is injected while rotating the nozzle by patent document 2 is proposed, and it demonstrates, referring FIG.

The airflow is sent from the blower 201 to the air outlet 204 provided in the cylindrical rotary nozzle 203 via the duct 202, and the rotary nozzle 203 is attached to the duct 202 so as to be rotatable in the axial direction of the cylinder. A plurality of air outlets 204 are provided in a row on the outer peripheral surface of the rotary nozzle, and a plurality of air outlets 204 are provided at appropriate intervals in the circumferential direction, and the air outlet direction of the air outlet 204 is restricted on the outer peripheral side of the rotary nozzle 203. A nozzle cover having a control window 205 is provided.
JP 2003-251228 A JP-A-9-72695

  In such a conventional nozzle moving device, there is a problem that the efficiency is deteriorated because the air flow ejected from the nozzle is reduced because the inside portion of the nozzle moving device is particularly poor and the internal fluid is liable to leak. Since there is a minute gap in the part, there is a problem that the minute dust in the gas flowing into the inside is likely to be clogged and the reliability of the nozzle such as malfunction is low.

  The present invention solves such a conventional problem, and improves the sealing performance by using an elastic body that allows the nozzle to move while maintaining the sealing state of the movable part of the nozzle. An object of the present invention is to provide an efficient nozzle moving device that does not leak. Another object of the present invention is to provide a highly reliable nozzle movable device that does not have a minute gap in the movable portion of the nozzle, and is not clogged with dust, causing no malfunction of the nozzle.

  The nozzle movable device of the present invention is characterized in that, in order to achieve the above-mentioned target, the nozzle is formed of a rigid body, the ejection port side is a free end, and the inflow port side is held by an elastic body. According to the present invention, the sealing performance is improved by making the nozzle movable while maintaining the sealing state of the movable part of the nozzle, and the efficiency is improved by preventing the fluid inside from leaking. In addition, since there is no minute gap in the movable part of the nozzle, there is no clogging due to dust, and there is no nozzle malfunction, and a highly reliable nozzle movable device can be obtained.

  In addition, the elastic body has a structure in which a nozzle passes therethrough and the outer periphery of the nozzle is held under a surface pressure.

  Further, the area of the nozzle holding surface on which the elastic body holds the nozzle is set to be twice or more the cross-sectional area of the nozzle.

  The jet direction changing means includes a guide plate that transmits the reciprocating motion to the nozzle, and is configured to change the jet direction by tilting the nozzle by moving the guide plate, and the shape of the inlet of the nozzle is the inlet A taper portion is provided in a direction in which the cross-sectional area increases toward the surface, and the angle of the taper portion is smaller than the angle at which the nozzle is inclined.

  The guide plate is formed in a plate shape having a guide plate support surface on the outer periphery, the guide plate support surface has two surfaces at symmetrical positions, and the distance between the two surfaces is equal. A roller support surface is provided, and a plurality of the roller support surfaces are tangent to the guide plate support surface to support the guide plate in a reciprocating manner.

  Further, the guide plate support surface and the roller support surface are meshed so that one of them is concave and the other is convex so that the load in both the radial direction and the thrust direction of the roller can be supported. And

  Further, the center of gravity of the guide plate is formed so as to be positioned between the guide plate support surfaces, and a plurality of rollers are arranged so as to be supported at both ends with respect to the center of gravity of the guide plate.

  Further, a roller is disposed in the vicinity of the center of gravity of the guide plate.

  Further, a certain surface pressure is applied to the guide plate support surface and the roller support surface.

  In addition, the crank having an eccentric shaft is connected to the motor, the eccentric shaft of the crank is connected to one end of the link, and the other end of the link is connected to the guide plate so that the guide plate can be reciprocated. The position where the link and the guide plate are connected is between the support points of the rollers.

  In addition, the rotating shafts of the plurality of rollers intersect at least one place.

  Further, the air curtain device is provided at the entrance of a building and generates an air current from the ceiling surface to the floor surface to prevent outdoor air from flowing into the room. This is an air curtain device using the device.

  Moreover, it is an air shower apparatus which blows away the foreign material adhering to the clothes of a human body by a jet, Comprising: It is an air shower apparatus using the nozzle movable device of this invention.

  Moreover, it is a draining apparatus which blows off the water droplet adhering to a human body or an object with a jet flow, and is a draining apparatus using the nozzle movable device of this invention.

  According to the present invention, since the nozzle is held by the elastic body without a gap, the airflow in the blowout air passage does not leak, so that the air volume of the jet flow ejected from the nozzle does not decrease and the efficiency is high. In addition, since there is no minute gap in the movable part of the nozzle, there is no clogging due to dust, and there is no nozzle malfunction, and a highly reliable nozzle movable device can be provided.

  Further, a nozzle movable device having the same effect can be provided by adopting a structure in which the nozzle penetrates the elastic body and the outer periphery of the nozzle is held under a surface pressure.

  In addition, the area of the nozzle holding surface where the elastic body holds the nozzle has a similar effect by setting it to twice or more the cross-sectional area of the nozzle, and the elastic body can be expanded and contracted to move the nozzle. Even in such a case, the nozzle can be held flexibly, that is, the reaction force that the nozzle receives from the elastic body can be reduced, so that the nozzle moving device that can reduce the energy required to move the nozzle can be provided.

  The jet direction changing means includes a guide plate that transmits the reciprocating motion to the nozzle, and is configured to change the jet direction by tilting the nozzle by moving the guide plate, and the shape of the inlet of the nozzle is the inlet It has a taper part in the direction in which the cross-sectional area expands, and the nozzle does not drop out from the elastic body toward the outside, and the air in the blowout air passage is easy to flow in. Since the pressure loss due to sudden reduction can be reduced, the same effect is obtained.

  Also, by making the angle of the taper part smaller than the angle at which the nozzle inclines, the taper part does not come into contact with the elastic body even when the nozzle inclines maximum, so that the taper part is inclined without receiving resistance due to contact. Therefore, it is possible to provide a nozzle moving device having an effect of reducing the energy required for moving the nozzle.

  The guide plate is formed in a plate shape having a guide plate support surface on the outer periphery, the guide plate support surface has two surfaces at symmetrical positions, and the distance between the two surfaces is equal. A plurality of roller support surfaces are provided so that the roller support surfaces are tangent to the guide plate support surfaces, and the guide plates are supported so as to be able to reciprocate, whereby the guide plate support surfaces and the roller support surfaces are in rolling contact. Since the guide plate is less susceptible to resistance when reciprocating, the energy required to move the nozzle can be reduced, and since it is not a sliding contact, durability is improved without causing wear. Furthermore, since the guide plate support surface is provided on the outer periphery of the guide plate, the support rigidity can be increased, and the vibration during reciprocating movement can be reduced to provide a highly reliable nozzle moving device.

  Further, the shape of the guide plate support surface and the roller support surface is meshed so that either one is concave and the other is convex, so that the load in both the radial direction and the thrust direction of the roller can be supported. Since the guide plate is securely supported by the rollers, no rattling occurs when the guide plate reciprocates, uneven wear occurs in the support section, and the guide plate does not vibrate abnormally. A high nozzle moving device can be provided.

  The center of gravity of the guide plate is formed so as to be positioned between the guide plate support surfaces, and the guide plate reciprocates by providing a plurality of rollers so as to support both ends of the center of gravity of the guide plate. Even if an inertial force is generated at the center of gravity of the guide plate, no moment is generated in the guide plate, so that the guide plate is not deformed, so that a nozzle movable device having the same effect can be provided.

  In addition, since the roller is arranged near the center of gravity of the guide plate, even if gravity is generated at the center of gravity of the guide plate, since the roller as a fulcrum is in the vicinity, the deflection generated in the guide plate can be reduced, Since strength deterioration due to deformation can be prevented, a nozzle movable device having the same effect can be provided.

  In addition, since a certain surface pressure is applied to the guide plate support surface and the roller support surface, the roller and the guide plate are supported without a gap, and no slip occurs. A nozzle moving device having the same effect can be provided.

  In addition, the crank having an eccentric shaft is connected to the motor, the eccentric shaft of the crank is connected to one end of the link, and the other end of the link is connected to the guide plate so that the guide plate can be reciprocated. The position where the link and the guide plate are connected is between the support points of the rollers, so that the link is guided by the vertical force generated when the link is inclined with respect to the direction of movement of the guide plate and transmits kinetic energy. Since no moment is generated in the plate, it is possible to provide a nozzle movable device having the same effect that the guide plate is not deformed.

  In addition, at least one rotation shaft of the plurality of rollers intersects, so that the vertical force generated when the link is inclined with respect to the direction of movement of the guide plate and transmits kinetic energy to the radial direction of the roller and the thrust Can be supported in both directions. Here, since the load resistance of the roller against the load in the thrust direction is smaller than the load resistance against the load in the radial direction, the load applied to the roller can be reduced compared to the case where the roller is supported only in the thrust direction. Since the reliability of the roller is improved, a nozzle moving device having the same effect can be provided.

  Further, the air curtain device is provided at the entrance of a building and generates an air current from the ceiling surface to the floor surface to prevent outdoor air from flowing into the room. The device is used for an air curtain device, and conventionally a slit-shaped nozzle is provided at the top of the entrance / exit of the building, and a jet is blown over the entire entrance / exit to block outdoor air and indoor air, so the nozzle opening Although the area is large and a large amount of air flow is required, by using the nozzle movable device of the present invention, the jet flow can be reciprocated and the jet flow can be spread over the entire entrance and exit, so that the nozzle opening area can be reduced, and the blower device Power consumption can be reduced. In addition, since air leakage does not occur from the movable part of the nozzle, the air blowing efficiency can be further increased and the nozzle movable device is highly reliable, so that it can be installed in a factory where dust is generated, for example. An air curtain device can be provided.

  Also, an air shower device that blows off foreign matter adhering to the clothes of the human body by a jet, which uses the nozzle movable device of the present invention for an air shower device, and conventionally a jet is ejected from a stationary nozzle. The place where the jet is in contact with the human body is limited, and foreign matter such as dust attached to the place where the jet does not contact may remain. However, the jet can be reciprocated by using the nozzle movable device of the present invention. Therefore, since the area where the jet flows in contact with the human body can be increased, the foreign matter attached to the human body can be completely removed without remaining. In addition, since air leakage does not occur from the movable part of the nozzle, the air blowing efficiency can be further increased and the nozzle movable apparatus is highly reliable, so that an air shower apparatus can be provided regardless of the installation location.

  Also, a water draining device that blows off water droplets adhering to a human body or an object by a jet, and uses the nozzle movable device of the present invention for the water draining device. Conventionally, water droplets adhering to a human body or an object are jetted However, a large amount of air flow was required to bring the jet into contact with the entire area where the water droplets were attached, but by using the nozzle movable device of the present invention, the jet flow was moved back and forth to cause the water droplets to adhere. Since the jet can be spread over the entire area, the opening area of the nozzle can be reduced, and the power consumption of the blower can be reduced. In addition, since air leakage does not occur from the movable part of the nozzle, the air blowing efficiency can be further increased and the nozzle movable device is highly reliable, so that it can be installed in a factory where dust is generated, for example. Can be provided.

  According to the first aspect of the present invention, the nozzle is formed of a rigid body, the ejection port side is a free end, the inflow port side is held by an elastic body, and the elastic force of the elastic body when the nozzle is moved. Therefore, it can be expanded and contracted appropriately, and there is an effect that no gap is formed between the nozzle and the elastic body.

  In addition, the area of the nozzle holding surface on which the elastic body holds the nozzle is set to be twice or more the cross-sectional area of the nozzle, and has an effect that the elastic body can be expanded and contracted when the nozzle is moved.

  The jet direction changing means includes a guide plate that transmits the reciprocating motion to the nozzle, and is configured to change the jet direction by tilting the nozzle by moving the guide plate. A tapered portion is provided in the direction in which the cross-sectional area increases toward the inlet, and the angle of the tapered portion is smaller than the angle at which the nozzle is inclined. By providing the tapered portion on the inlet side of the nozzle, the nozzle Does not drop out from the elastic body toward the outside, and the air in the blowout air passage is easy to flow in. Further, by making the angle of the taper portion smaller than the angle at which the nozzle is inclined, the taper portion does not come into contact with the elastic body even when the inclination of the nozzle is maximized.

  The guide plate is formed in a plate shape having a guide plate support surface on the outer periphery, the guide plate support surface has two surfaces at symmetrical positions, and the distance between the two surfaces is equal. A roller support surface is provided, and a plurality of the roller support surfaces are tangent to the guide plate support surface to support the guide plate so as to be able to reciprocate. The support portion reciprocates by rolling contact. Friction does not occur when moving, and resistance is not easily received. Further, since the guide plate support surface is provided on the outer periphery of the guide plate, the support rigidity can be increased.

  In addition, the guide plate support surface and the roller support surface are meshed so that one of them is concave and the other is convex so that both the radial and thrust loads of the roller can be supported. The guide plate has the effect of being reliably supported by the roller.

  Further, the center of gravity of the guide plate is formed so as to be positioned between the guide plate support surfaces, and a plurality of rollers are arranged so as to be supported at both ends with respect to the center of gravity of the guide plate, and the guide plate reciprocates. Even when an inertial force is generated at the center of gravity of the guide plate, the moment is not generated in the guide plate.

  Also, a roller is provided near the center of gravity of the guide plate. Even if gravity is generated at the center of gravity of the guide plate, the roller that is the support point is in the vicinity, so the deflection generated on the guide plate is reduced. Has the effect of being able to

  Further, a constant surface pressure is applied to the guide plate support surface and the roller support surface, and the roller holding the guide plate has an effect that the roller and the guide plate are supported without a gap.

  In addition, the crank having an eccentric shaft is connected to the motor, the eccentric shaft of the crank is connected to one end of the link, and the other end of the link is connected to the guide plate so that the guide plate can be reciprocated. The position where the link and the guide plate are connected is between the support points of the rollers, and the link is inclined with respect to the moving direction of the guide plate and the vertical force generated when the kinetic energy is transmitted. It has the effect that no moment is generated in the guide plate.

  Further, the rotation axes of the plurality of rollers intersect at least one place, and the vertical force generated when the link is inclined with respect to the moving direction of the guide plate and transmits kinetic energy is applied to the rollers. It has the effect that it can be supported in both the radial direction and the thrust direction.

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

(Embodiment 1)
As shown in FIGS. 1 and 2, for example, an air flow blown by a blower 1 such as a fan motor guides the airflow to a nozzle 3 through a blowout air passage 2 connected to a blowout side of the blower 1. The jet stream is jetted from the jet nozzle 4 provided in the nozzle 3. The nozzle 3 is formed of a rigid body made of, for example, a moldable synthetic resin such as ABS or PP. The nozzle 3 has a jet port 4 at one end and an inlet port 5 at the other end. The inlet 5 of the nozzle 3 is held by an elastic body 6, and the elastic body 6 is installed in the opening of the blowout air passage 2 without a gap. The jet direction changing means 7 is installed in the vicinity of the nozzle 3.

  As shown in FIG. 3, the jet direction changing means 7 is, for example, a DC brushless motor as a motor 8, a crank 10 connected to the motor 8, and provided with an eccentric shaft 9, and one end of the eccentric shaft 9 and the link 11 is freely rotatable. The slider crank mechanism is composed of a guide plate 12 that is rotatably connected to the other of the links 11 and a roller 13 that supports the guide plate 12 and converts the rotational motion of the motor 8 into the reciprocating motion of the guide plate 12. Is configured.

  Further, the guide plate 12 is provided with a plurality of opening holes 14, and the nozzles 3 are passed through the respective opening holes 14 so that when the guide plate 12 reciprocates, the wall surface of the opening hole 14 and the nozzle 3 come into contact with each other. And the nozzle 3 inclines and the direction of the jet stream which ejects from the jet nozzle 4 is changed.

  In the above configuration, the nozzle 3 is held by the elastic body 6 such as silicon rubber, so that when the nozzle 3 is inclined, the nozzle 3 is expanded and contracted by the elastic force of the elastic body 6. Therefore, even if the nozzle 3 is movable, no gap is generated between the nozzle 3 and the elastic body 6. Therefore, even if the nozzle 3 is movable, the airflow in the blowing air passage 2 does not leak to the outside, and the blowing efficiency can be improved.

  In addition, it is desirable to select a highly flexible material for the elastic body 6, and in general, it is appropriate to select a material having a hardness of 50 degrees or less, while the hardness of the rubber material is 20 to 100 degrees. No strong reaction force is generated when the elastic body 6 is deformed or stretched by moving the elastic body 6, so that the power can be reduced when moving the nozzle 3 using the motor 8. Since the load applied to a certain crank 10, link 11, and guide plate 12 can be reduced and distortion generated in the mechanical parts can be reduced, the reliability can be improved.

  In addition, since the elastic body 6 is formed into a sheet shape having a plate thickness of 0.5 to 3 mm, the elastic body 6 is easily deformed, so that the reliability can be similarly improved.

  As shown in FIG. 4, the nozzle 3 is held through the elastic body 6, and the surface on which the elastic body 6 holds the nozzle 3 is called a nozzle holding surface 15, and the nozzle holding surface 15 corresponds to the nozzle 3. By setting it to twice or more of the cross-sectional area, it is possible to secure an area where the elastic body 6 is deformed or stretched when the nozzle 3 is inclined. The larger the area of the nozzle holding surface 15 is, the larger the area with respect to the expansion / contraction amount can be. Therefore, the elastic deformation can be performed more flexibly. However, since the size of the device increases, it is desirable to determine appropriately according to the size of the device.

  Further, the holding portion between the inflow portion 5 and the elastic body 6 of the nozzle 3 is formed by reducing the hole diameter of the hole provided in the elastic body 6 with respect to the outer diameter of the nozzle 3 when the nozzle is cylindrical, for example. 3, the elastic body 6 is elastically deformed, and the outer periphery of the nozzle 3 is always held in a state where surface pressure is applied. Therefore, even if the elastic body 6 is deformed or expanded or contracted by inclining the nozzle 3, the nozzle 3 Since the holding portion of this is always held in close contact, no air leakage occurs. As an example, the surface pressure is 1 kPa.

  Further, the shape of the inlet 5 of the nozzle 3 is provided with a tapered portion 16 in a direction in which the cross-sectional area increases as it goes toward the inlet 5, and for example, the angle of the tapered portion 16 with respect to the maximum inclination angle of the nozzle 3 is set. You may set to about 0 degree or more and 10 degrees or less.

  The guide plate 12 is provided with a guide plate support surface 17 on the outer periphery, and is in rolling contact with a roller support surface 18 provided on the circumference of the roller 13. The guide plate 12 is guided by arranging a plurality of rollers 13 on the guide plate support surface 17. The plate 12 is supported so as to be able to reciprocate. In the embodiment of the present invention, four rollers 13 are arranged to support the guide plate 12. Here, by using the roller 13 as a support method of the guide plate 12, the guide plate support surface 17 and the roller support surface 18 are in rolling contact, and wear is not generated, and the durability is excellent and the support is rolling. Since the resistance is low and the power required when the guide plate 12 reciprocates can be reduced, the load applied to the mechanical parts can be reduced, and the strain generated in the mechanical parts can be reduced, so that the reliability can be improved. . The same effect can be obtained even if the supporting method uses a ball instead of the roller 13.

  In addition, by engaging one of the guide plate support surface 17 and the roller support surface 18 with a convex shape and the other with a concave shape, the roller 13 can support the guide plate 12 in the thrust direction in addition to the radial direction. When the guide plate 12 reciprocates, there is no rattling and no vibration is generated. As an example, the guide plate support surface 17 has an arcuate convex shape, and the roller support surface 18 is meshed with the same arcuate concave shape so that the roller 13 supports the guide plate 12 in both the radial direction and the thrust direction. Can do. The guide plate support surface 17 and the roller support surface 18 are not only arc-shaped but also have the same effect even if they are V-shaped or trapezoidal.

  If the center of gravity G of the guide plate 12 is positioned between the guide plate support surfaces 17 as shown in FIG. 5A, the inertial force Fk in the traveling direction applied when the guide plate 12 reciprocates. Since the moment M is not generated and the load P is not generated on the roller 13, not only the durability of the roller 13 is improved, but also the deformation of the guide plate 12 can be prevented, so that the reliability can be further improved. In addition, by supporting the center of gravity G of the guide plate by both rollers with the roller 13, the moment M is not generated by the gravity W applied to the center of gravity G, and the load P is not generated on the roller. is there. FIG. 5B shows a state where the moment M is generated by the inertia force Fk and the load P is generated on the roller 13 when the center of gravity G of the guide plate 12 is not located between the guide plate support surfaces 17. FIG. 5C shows a state where the moment M is generated by the gravity W and the load P is generated on the roller 13 when the center of gravity G of the guide plate 12 is not between the support points of the roller 13.

  In addition, by arranging the roller 13 in the vicinity of the center of gravity G of the guide plate 12, even if gravity W is applied to the center of gravity G of the guide plate 12, the distance to the roller 13 that is the support position of the guide plate 12 is short. Since the plate 12 is difficult to bend and deform, and the strength is not easily deteriorated, the reliability can be improved.

  Further, by applying a constant surface pressure to the roller support surface 18 and the guide plate support surface 17, the roller support surface 18 and the guide plate support surface 17 are supported without gaps, and are surely in rolling contact with each other. Since there is no wear due to the occurrence of slip on the surface, the reliability can be improved. Further, as an example of a method for applying the surface pressure, the arrangement of the rollers 13 that sandwich the guide plate 12 with respect to the distance between the guide plate support surfaces 17 may be narrowed, and the surface pressure is 1 MPa.

  Further, as shown in FIG. 6A, since the force is transmitted in the state where the link 11 is inclined with respect to the reciprocating direction of the guide plate 12, the force applied to the guide plate 12 is in the reciprocating direction and the reciprocating direction. Since the guide plate 12 may be deformed by the force F applied in the vertical direction, the connecting portion 19 of the link 11 and the guide plate 12 is disposed between the support points of the roller 13. Since the moment M is generated and no load P is generated on the roller 13, not only the durability of the roller 13 is improved, but also the deformation of the guide plate 12 can be prevented, so that the reliability can be further improved. Further, by bringing the connecting portion 19 closer to the roller 13, the distance from the point of application of the force applied to the guide plate 12 can be reduced, the guide plate 12 is less likely to bend and deformed, and the reliability can be improved. FIG. 6B illustrates a state in which the moment M is generated by the force F applied to the guide plate 12 and the load P is generated in the roller 13 when the connecting portion 19 is not disposed between the support points of the roller 13. .

(Embodiment 2)
In the second embodiment of the present invention, the same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 7, the rotation shafts 20 of the plurality of rollers 13 intersect at least one place. As an example, four rollers 13 are installed and rotated with respect to the target guide plate support surface 17. It is installed so that the shafts 20 intersect. With the configuration as described above, since the load of the component in the vertical direction with respect to the reciprocating direction of the guide plate 12 can be supported from both the radial direction and the thrust direction of the roller 13, the load is supported only in the thrust direction. In comparison, the load on the roller 13 can be reduced and the durability of the roller 13 can be improved.

(Embodiment 3)
In the third embodiment of the present invention, the same parts as those in the first and second embodiments are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 8, the nozzle movable device 21 of the present invention is used for an air curtain device 22. For example, the nozzle movable device 21 is installed at the upper part of a building entrance and exits by jetting a jet toward the floor surface. In the air curtain device 22 that blocks air and indoor air, the jet flow can be reciprocated to spread the jet flow over the entire entrance and exit, so that the nozzle opening area can be reduced and the power consumption of the blower can be reduced. In addition, since air leakage does not occur from the movable part of the nozzle, the blowing efficiency can be further increased and the nozzle movable device 21 is highly reliable, so that it can be installed in a factory where dust is generated, for example. Choose a place.

(Embodiment 4)
In the fourth embodiment of the present invention, the same parts as those in the first to third embodiments are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 9, the nozzle movable device 21 of the present invention is used for an air shower device 23, and includes, for example, a plurality of nozzles on the side of a box having a volume that allows a human to stand up, The air shower device 23 removes foreign matter such as dust adhering to the human body by ejecting the jet from the nozzle toward the human body, and since the jet flow reciprocates, the area where the jet contacts the human body can be increased. The foreign matter adhered to the nozzle can be completely removed without remaining, and since air leakage does not occur from the movable portion of the nozzle, the air blowing efficiency can be further improved and the nozzle movable device 21 is highly reliable. Do not choose.

(Embodiment 5)
In the fifth embodiment of the present invention, the same parts as those in the first to fourth embodiments are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 10, the nozzle movable device 21 of the present invention is used in a draining device 24. For example, the draining device 24 blows off moisture by spraying water adhering to a human hand to dry it. If it is used, the jet can be reciprocated to spread the jet over the entire area where the water droplets are attached, so that the opening area of the nozzle can be reduced and the power consumption of the blower can be reduced. In addition, since air leakage does not occur from the movable part of the nozzle, the blowing efficiency can be further increased and the nozzle movable device 21 is highly reliable, so that it can be installed in a factory where dust is generated, for example. Choose a place.

  It can be applied to a device that is installed at the entrance of a building and blocks outside air and room air, and can also be applied to a purpose of removing water droplets and dust adhering to a human body and an object by a jet.

The perspective view which shows the structure of the nozzle movable device of Embodiment 1 of this invention, an air blower, and a blowing air path. Cross-sectional side view The perspective view which shows the structure of the jet flow change means 7 Cross-sectional side view Front view of the jet changing means 7 ((a) Front view showing an example of the center of gravity position of the guide plate 12, (b) Front view showing another example, (c) Front view showing another example) Side view of the jet changing means 7 ((a) Side view showing an example of the position of the connecting portion 19 of the jet changing means 7, (b) Side view showing another example of the jet changing means 7) Sectional drawing which shows the structure of arrangement | positioning of the roller of Embodiment 2 of this invention. The perspective view which shows the air curtain apparatus 22 of Embodiment 3 of this invention. The perspective view which shows the air shower apparatus 23 of Embodiment 4 of this invention. The perspective view which shows the draining device 24 of Embodiment 5 of this invention Sectional drawing showing a nozzle moving device of the prior art Perspective view showing a conventional hand dryer

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Air blower 2 Blowing air path 3 Nozzle 4 Jet outlet 5 Inlet 6 Elastic body 7 Jet direction change means 8 Motor 9 Eccentric shaft 10 Crank 11 Link 12 Guide plate 13 Roller 14 Opening hole 15 Nozzle holding surface 16 Tapered part 17 Guide plate Support surface 18 Roller support surface 19 Connecting portion 20 Rotating shaft 21 Nozzle movable device 22 Air curtain device 23 Air shower device 24 Draining device

Claims (14)

A nozzle having an outlet for ejecting an air flow and an inlet for inflowing air, comprising jet direction changing means for changing the direction of the jet ejected from the nozzle, wherein the nozzle is formed of a rigid body, and the jet outlet A nozzle movable device characterized in that the side is a free end and the inlet side is held by an elastic body. The nozzle movable device according to claim 1, wherein a nozzle penetrates the elastic body, and the outer periphery of the nozzle is held by applying a surface pressure. 3. The nozzle movable device according to 1 or 2, wherein the area of the nozzle holding surface on which the elastic body holds the nozzle is at least twice the cross-sectional area of the nozzle. The jet direction changing means includes a guide plate that transmits a reciprocating motion to the nozzle, and is configured to change the jet direction by tilting the nozzle by moving the guide plate, and the shape of the inlet of the nozzle is The nozzle according to any one of claims 1 to 3, wherein the nozzle has a tapered portion in a direction in which a cross-sectional area increases toward the inlet, and an angle of the tapered portion is smaller than an angle at which the nozzle is inclined. Mobile device. The guide plate is formed in a plate shape having a guide plate support surface on the outer periphery, the guide plate support surface has two surfaces at symmetrical positions, and the distance between the two surfaces is equal, and the roller supports the roller on the circumference. The nozzle according to any one of claims 1 to 4, further comprising a surface, wherein a plurality of the roller support surfaces are tangent to the guide plate support surface to support the guide plate so as to be reciprocally movable. Mobile device. The guide plate support surface and the roller support surface are meshed so that one of them is concave and the other is convex so that both the radial and thrust loads of the roller can be supported. The nozzle movable device in any one of Claim 1 to 5. The center of gravity of the guide plate is formed so as to be positioned between the guide plate support surfaces, and a plurality of rollers are arranged so as to be supported at both ends with respect to the center of gravity of the guide plate. Any one of the nozzle movable devices. The nozzle moving device according to claim 1, wherein a roller is disposed in the vicinity of the center of gravity of the guide plate. 9. The nozzle moving device according to claim 1, wherein a constant surface pressure is applied to the guide plate support surface and the roller support surface. A configuration in which a crank having an eccentric shaft is connected to a motor, an eccentric shaft of the crank is connected to one end of a link, and the other end of the link is connected to a guide plate so that the guide plate can reciprocate. The nozzle movable device according to any one of claims 1 to 9, wherein a position where the link and the guide plate are connected is between support points of a roller. The nozzle movable device according to any one of claims 1 to 10, wherein at least one rotation shaft of the plurality of rollers intersects. 11. An air curtain device that is provided at a doorway of a building and that generates indoor airflow from a ceiling surface to a floor surface to prevent outdoor air from flowing into the room. An air curtain device using the nozzle movable device. It is an air shower apparatus which blows away the foreign material adhering to the clothes of a human body by a jet, Comprising: The air shower apparatus using the nozzle movable device in any one of Claim 1 to 10. 11. A draining device that blows off water droplets adhering to a human body or an object by a jet and dries it, and uses the nozzle movable device according to claim 1.

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