JP5147661B2 - Heating blower - Google Patents

Description

  The present invention relates to a heated air blower.

2. Description of the Related Art As a conventional hair dryer as a heated air blower, one in which a nozzle is integrally provided on a discharge port side of a case having a suction port and a discharge port is known (see, for example, Patent Document 1).
JP-A-4-367609

  However, in the above prior art, since the nozzle is provided integrally with the case, the nozzle cannot be rotated relative to the case.

  For this reason, a configuration has been proposed in which the nozzle is rotated relative to the case as a configuration in which the nozzle is detachably attached to the case. In this case, however, it is necessary to make the contour of the discharge port of the case circular. When a hair dryer having a non-circular outline of the discharge port was used, the nozzle could not be freely rotated with respect to the case.

  Therefore, the present invention is to obtain a heating air blower that can attach a discharge nozzle so as to be rotatable relative to the main body even when the discharge nozzle is attached to the main body having a non-circular contour discharge port. Objective.

According to the first aspect of the present invention, the discharge nozzle is attached to and detached from the discharge port side tip of the main body having a suction port on the upstream side and a discharge port having a non-circular contour on the downstream side and having a wind tunnel formed therein. a hot air blower is mountable, wherein the discharge port, said has a nozzle attachment section for attaching the discharge nozzle is provided, said the discharge nozzle, the nozzle mounting portion outer shaped profile is formed in a circular shape The nozzle mounting portion is formed in a non-circular shape on the downstream side, and gradually decreases in diameter from the downstream end of the wind tunnel toward the upstream side, An inner surface having a circular shape corresponding to the outer contour of the mounting portion is formed, and an end surface extending in the radial direction of the wind tunnel is formed at an upstream end portion of the inner surface, and an outer periphery of the mounting portion The surface is in sliding contact with the upstream end surface of the inner surface. Wherein the protrusion is provided that.

In the invention of claim 2, a plurality of the protrusions are provided in the circumferential direction of the mounting portion, and a pair of notches are provided at both ends of the protrusion in the circumferential direction, and the protrusions of the pair of notches are provided. A tongue piece that can be elastically deformed is formed on the center of the mounting portion between the protrusions .

According to the present invention, even when the discharge nozzle is attached to the main body having a discharge port having a non-circular contour, the discharge nozzle can be attached so as to be rotatable relative to the main body.

In addition , the wind tunnel of the main body portion and the wind tunnel of the discharge nozzle can be communicated with each other without a gap.

  Preferred embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a cross-sectional view of a hair dryer as a heating air blower according to the present embodiment, FIG. 2 is a front view of the hair dryer as viewed from the air outlet side, and FIG. 3 is a metal fine particle generator and mist generator in the main body of the hair dryer. FIG. 4 is a plan view of the discharge nozzle, FIG. 5 is a side view of the discharge nozzle, FIG. 6 is a front view of the discharge nozzle, and FIG. 7 is a plan view of the discharge nozzle. FIG. 8 is a plan view of the nozzle mounting portion, FIG. 9 is a side view of the nozzle mounting portion, FIG. 10 is a front view of the nozzle mounting portion, and FIG. 11 is a side sectional view of the nozzle mounting portion. 12 is an end view taken along the line BB in FIG. 11, FIG. 13 is an end view taken along the line CC in FIG. 11, FIG. 14 is an enlarged side sectional view of the hair dryer with the discharge nozzle attached, and FIG. It is an expansion plane sectional view of the hair dryer in the state where the nozzle was attached.

  A hair dryer 1 as a heating and blowing device according to the present embodiment includes a gripping portion 1a as a portion gripped by a user's hand, and a main body portion 1b coupled in a direction intersecting the gripping portion 1a. The grip portion 1a and the main body portion 1b are configured to have a substantially T-shaped or L-shaped appearance (substantially T-shaped in the present embodiment). The power cord 2 is pulled out from the protruding end of the grip 1a. In addition, the grip portion 1a is divided into a base portion 1c and a tip portion 1d on the main body portion 1b side, and the root portion 1c and the tip portion 1d are rotatably connected via a connecting portion 1e. Yes. The front end 1d can be folded to a position along the main body 1b.

  The case 3 forming the outer wall of the hair dryer 1 is configured by joining together a plurality of divided bodies. A cavity is formed inside the case 3, and various electrical components are accommodated in the cavity.

  Inside the main body 1b, a wind tunnel 4 is formed from the inlet opening (suction port) 4a on one side (right side) in the longitudinal direction (left and right direction in FIG. 1) to the outlet opening (discharge port) 4b. An air flow W is formed by rotating the fan 5 accommodated in the wind tunnel 4. That is, the air flow W flows into the wind tunnel 4 from the outside through the inlet opening 4a, and is discharged to the outside through the wind tunnel 4 from the outlet opening 4b.

  In the main body 1 b, a substantially cylindrical inner cylinder 6 is provided inside the outer cylinder 3 a of the case 3, and the air flow W flows inside the inner cylinder 6. Inside the inner cylinder 6, the fan 5 is arranged on the most upstream side, a motor 7 for driving the fan 5 is arranged on the downstream side, and a heater 8 as a heating mechanism is arranged on the further downstream side of the motor 7. . When the heater 8 is operated, warm air is blown out from the outlet opening 4b. In the present embodiment, the heater 8 is configured as a belt-like and corrugated electric resistor wound around the inner periphery of the inner cylinder 6, but is not limited to this configuration.

  Then, a second voltage for applying a voltage to the metal fine particle generation unit 10, the mist generation unit 11, and the mist generation unit 11 in the cavity 9 formed between the case 3 and the inner cylinder 6 in the main body 1b. The application circuit 12 and the like are accommodated. The cavity 13 in the base portion 1c of the grasping portion 1a accommodates a first voltage application circuit 14 for applying a voltage to the metal fine particle generation portion 10 and a switch portion 15 for switching the operation mode. . Further, in the cavity in the distal end portion 1d of the grip portion 1a, another switch portion 16 for switching the power ON and OFF, switching the operation mode, and the like is accommodated. These electrical components are connected to each other by a lead wire 17 in which a core wire made of a metal conductor or the like is covered with an insulating resin or the like. The switch units 15 and 16 are configured to be able to switch the open / close state of the internal contacts by operating the operators 18 and 19 exposed on the surface of the case 3.

  As shown in FIG. 1, the first voltage application circuit 14 and the second voltage application circuit 12 are preferably arranged in a region that is on the extended line of the grip portion 1a in the grip portion 1a or in the main body portion 1b. It is. When the user holds the gripping portion 1a, the rotational moment (moment arm) due to gravity acting on the first voltage application circuit 14 and the second voltage application circuit 12 is reduced and acts on the user's hand. This is to reduce the load.

  As shown in FIG. 1, in the present embodiment, the first voltage application circuit 14 and the second voltage application circuit 12 are arranged at positions opposite to each other across the inner cylinder 6. . In other words, by interposing the inner cylinder 6 between the first voltage application circuit 14 and the second voltage application circuit 12, the mutual interference between the first voltage application circuit 14 and the second voltage application circuit 12 occurs. It suppresses problems such as voltage drop and instability.

  The inner cylinder 6 includes a cylindrical portion 6a, a plurality of support ribs 6b (only one place shown in FIG. 1) arranged radially extending from the cylindrical portion 6a and dispersed in the circumferential direction, and a support A flange portion 6c connected to the tubular portion 6a via the rib 6b and projecting in a direction substantially orthogonal to the axial direction of the tubular portion 6a. A gap g1 is formed between the tubular portion 6a and the flange portion 6c, and a part of the air flow W is branched into the cavity 9 through the gap g1 to form a branch flow Wp. ing. The gap g1 serving as an inlet for the branch flow Wp into the cavity 9 is provided at a position downstream of the fan 5 and upstream of the heater 8. Therefore, the branch flow Wp becomes a relatively cool air flow before being heated by the heater 8.

  Further, as shown in FIG. 3, it is preferable that the lead wire 17a connected to the metal fine particle generation unit 10 and the lead wire 17b connected to the mist generation unit 11 are arranged as far as possible without crossing each other. is there. This is to prevent the metal fine particle generation unit 10 or the mist generation unit 11 from obtaining a desired voltage or causing the voltage to become unstable due to mutual interference between the currents flowing through the lead wires 17a and 17b. In the present embodiment, the metal fine particle generation unit 10 is disposed apart from the mist generation unit 11 on one side in the circumferential direction of the inner cylinder 6 (upper side in FIG. 3), and the lead wire 17a is disposed between the inner cylinder 6 and the outer cylinder. Between the inner cylinder 6 and the outer cylinder 3a, and the mist generating section 11 between the inner cylinder 6 and the outer cylinder 3a. On the other hand, the inner cylinder 6 is routed in a region on the other circumferential side (lower side in FIG. 3).

  As shown in FIG. 2, the case 3 is formed with an elliptical through hole 3b at a position on the exit opening 4b side of the cavity 9, and the through hole 3b is a cover made of an insulating synthetic resin material. 20 is closed. The cover 20 is formed with a metal fine particle outlet 20a and a mist outlet 20b. The cover 20 preferably has lower conductivity than the case 3 in order to suppress charging due to metal fine particles or mist. This is because when the cover 20 is charged, the charged fine metal particles and mist are hardly released from the fine metal particle generation unit 10 and the mist generation unit 11 due to the charge. In this part, the cover 20 forms the outer wall of the hair dryer 1.

  The metal fine particle generation unit 10 has a discharge electrode 10a and a ground electrode 10b formed of a conductive metal material, and a first voltage application circuit 14 is provided between the discharge electrode 10a and the ground electrode 10b. A high voltage is applied to cause discharge (corona discharge or the like), and metal fine particles (metal molecules, ions, or the like) are discharged from the discharge electrode 10a, the ground electrode 10b, or the like by the discharge action.

  The metal fine particle generation unit 10 includes a box-shaped housing 10c, and the discharge electrode 10a is a base portion (for example, a printed board or the like not shown) fixed to the housing 10c in the housing 10c. ), For example, by soldering or caulking.

  The discharge electrode 10a can be configured as an extremely fine wire, and its width (diameter) is 10 to 400 [μm] (preferably 30 to 300 [μm], and even more preferably 50 to 200 [μm]. ) Can be set. In that case, various cross-sectional shapes such as a circle, an ellipse, and a polygon can be employed. The discharge electrode 10a may be formed in a needle shape having a pointed end.

  The ground electrode 10b can be provided, for example, as an annular and plate-like member that is spaced apart from the distal end side of the discharge electrode 10a and arranged substantially orthogonal to the extending direction of the discharge electrode 10a.

  Further, the discharge electrode 10a is, for example, a transition metal (for example, gold, silver, copper, platinum, zinc, titanium, rhodium, palladium, iridium, ruthenium, osmium, etc.), an alloy, or a member obtained by plating a transition metal. Etc. can be configured. When the metal fine particles generated and released by the metal fine particle generation unit 10 contain gold, silver, copper, zinc, or the like, an antibacterial action can be caused by the metal fine particles. In addition, when the metal fine particles contain platinum, zinc, titanium, or the like, the metal fine particles can cause an antioxidant effect. Platinum fine particles have been found to have an extremely high antioxidant effect. In addition, the part (for example, ground electrode 10b etc.) which does not discharge | release metal microparticles | fine-particles can be comprised using stainless steel, tungsten, etc.

  Moreover, the metal fine particle production | generation part 10 produces | generates ion (for example, negative ions, for example, NO2-, NO3-, etc.) by discharge action, and this ion is made into discharge electrode 10a, ground electrode 10b, another metal material, and a metal component. The metal fine particles may be generated by colliding with a member or the like containing. That is, the ground electrode 10b and the other member may be made of a material containing the transition metal, and the metal fine particles may be emitted therefrom.

  The mist generating unit 11 includes a discharge electrode 11a and a ground electrode 11b formed of a conductive metal material. A high voltage is applied between the discharge electrode 11a and the ground electrode 11b by the second voltage application circuit 12. A discharge (corona discharge or the like) is generated by applying a voltage. Specifically, for example, the discharge electrode 11a can be formed in a needle shape, and the ground electrode 11b can be formed as an annular and plate-like member that is spaced from the distal end side of the discharge electrode 11a. The mist generation unit 11 includes a Peltier element (not shown) as a cooling mechanism and a cooling plate 11c made of a member having thermal conductivity (for example, a metal member), and is cooled by the Peltier element. Water in the air is condensed on the surface of the plate 11c to generate condensed water. In such a configuration, the supplied water, that is, condensed water is atomized by the discharge action, and a very fine mist (a negatively charged mist including negative ions) is generated. In the present embodiment, the Peltier element and the cooling plate 11c correspond to the water supply unit.

  In the present embodiment, both the metal fine particle generation unit 10 and the mist generation unit 11 correspond to an ion generation unit that generates ions. The mist generating unit may be equipped with a steam generating mechanism that generates steam by heating water, and the metal fine particle generating unit is a metal solution mist that atomizes a metal solution to generate metal fine particles. A mechanism may be mounted.

  Moreover, in this embodiment, as shown in FIG. 2, the metal fine particle discharge port 20a is formed smaller than the mist discharge port 20b. That is, the maintenance and state confirmation of the mist generating unit 11 through the mist discharge port 20b can be performed more easily, and erroneous entry of fingers, tools, foreign objects, etc. through the metal fine particle discharge port 20a is suppressed. It is.

  Furthermore, the hair dryer 1 according to this embodiment includes a light emitting unit 21. The light emitting unit 21 includes a light source 21a such as an LED (light emitting diode) disposed in the cavity 9, and a light guide member 21b formed of a synthetic resin material having translucency such as acrylic that guides light from the light source 21a. And have. As shown in FIG. 2, a vertically long oval hole 20c is formed between the metal fine particle outlet 20a and the mist outlet 20b of the cover 20, and is opposite to the light source 21a of the light guide member 21b. The side emission end portion 21 c is fitted into the hole 20 c and exposed outside the cover 20. Therefore, the light from the light source 21a is guided by the light guide member 21b and emitted from the emission end 21c to the outside of the cover 20. In such a configuration, when the hair dryer 1 is used, the emission end portion 21c is arranged to face the user's head.

  The light emitting unit 21 can be used as display means for the operation mode of the hair dryer 1. For example, when the heater 8 is used and hot air is blown out, the color is red. When the heater 8 is not used and cold air is blown out, the metal fine particle generator 10 is operating and the metal fine particles are released. It is possible to change the color according to the operation state, such as yellow in a state where the mist is generated, and blue in a state where the mist generation unit 11 is operating and the mist is released. In this case, for example, a control circuit (not shown) mounted on the same substrate as the second voltage application circuit 12 or the like can control the light emission of the light source 21a according to the operation state of each part. In this case, a plurality of light sources 21a corresponding to the respective colors are mounted, and the control circuit controls light emission of the plurality of light sources 21a. The light source 21a can be blinked by the control circuit, the blinking interval can be controlled, and the light emission intensity can be changed. These light emission modes can be set in association with various operation modes. Is possible.

  Further, it is possible to give a predetermined effect to the human body by the light from the light emitting unit 21. For example, when a high-brightness LED having a wavelength of 415 [nm] is used as the light source 21a, the blue light emitted from the light source 21a causes sterilization effect due to destruction of bacteria, reduction of pores, decrease in sebum secretion, and the like. It has been confirmed that a preventive effect for acne can be obtained. Further, when a high-intensity LED having a wavelength of about 630 [nm] is used as the light source 21a, red light emitted from the light source 21a promotes blood circulation, activation of metabolism by angiogenesis, and generation of collagen and elastin. It has been confirmed that effects such as Furthermore, it has been confirmed that when the number of times of red light irradiation is repeated, it is effective for improving photo-aged skin such as fine lines, spots, dullness, and open large pores and scars after acne. These effects vary depending on the person.

  Furthermore, the light emitting unit 21 can be used as an irradiation unit that illuminates the metal fine particle generation unit 10 or the mist generation unit 11. This makes it easy to visually recognize the state of the metal fine particle generation unit 10 and the mist generation unit 11, and also provides an effect of improving the work efficiency by improving the visibility when performing maintenance such as cleaning.

  As described above, the hair dryer 1 as the heating air blower according to the present embodiment accommodates the metal fine particle generation unit 10 and the mist generation unit 11 in the same cavity 9, but is generated in the mist generation unit 11. When the mist reaches the metal fine particle generation unit 10, the metal fine particle generation unit 10 is charged and the voltage or electric field changes to destabilize the generation of metal fine particles, or the metal part of the metal fine particle generation unit 10 is corroded by moisture. There is a risk that.

  Therefore, in the present embodiment, the metal fine particle generation unit 10 is arranged away from the mist passage region Ami through which the mist generated by the mist generation unit 11 passes. Specifically, as shown in FIG. 3, the metal fine particle generation unit 10 is arranged apart from the mist generation unit 11 in a direction Dn substantially perpendicular to the direction Dp through which the mist passes in the mist passage region Ami. It is. Since the mist flows out from the mist generation unit 11 in the direction Dp, it is difficult for the mist generation unit 11 to reach the metal fine particle generation unit 10 arranged in the direction Dn orthogonal to the direction Dp. Therefore, with this configuration, the metal fine particle generation unit 10 is not easily affected by the mist flowing out of the mist generation unit 11.

  In the present embodiment, in the cavity 9, the metal fine particle generation unit 10 is disposed at a position relatively close to the metal fine particle discharge port 20a so as to face the metal fine particle discharge port 20a, and the mist generation unit 11 is At a position relatively close to the mist discharge port 20b, the mist discharge port 20b is opposed to the mist discharge port 20b. Furthermore, the distance D1 between the mist generating unit 11 and the cover 20 is shorter than the distance D2 between the mist generating unit 11 and the metal fine particle generating unit 10. Further, in the cavity 9, the branch flow Wp flowing from the gap g1 is discharged to the outside from the metal fine particle discharge port 20a and the mist discharge port 20b.

  Therefore, in this embodiment, the metal fine particles generated by the metal fine particle generation unit 10 are discharged relatively smoothly from the metal fine particle discharge port 20a, and the mist generated by the mist generation unit 11 is relatively smooth. It is discharged from the mist outlet 20b. That is, the metal fine particles generated by the metal fine particle generation unit 10 are difficult to flow to the mist generation unit 11 side, and the mist generated by the mist generation unit 11 is difficult to flow to the metal fine particle generation unit 10 side. . The branched flow Wp contributes to the discharge of the metal fine particles and the mist. However, even when there is no branch flow Wp, the metal fine particles and the mist are discharged from the corresponding discharge ports 20a and 20b.

  Furthermore, in this embodiment, by providing a shielding wall in the cavity 9, it is possible to more reliably suppress the mist from reaching the metal fine particle generation unit 10. In the present embodiment, the light guide member 21b and the attachment member 6d for attaching the metal fine particle generation unit 10 to the inner cylinder 6 are used as shielding walls.

  The light guide member 21 b is formed in a plate shape, and the thickness direction of the light guide member 21 b is along the circumferential direction of the inner cylinder 6, and the discharge end side (left side in FIG. 3) of the metal fine particle generation unit 10 and the discharge of the mist generation unit 11. The metal fine particle passage region (that is, the region on the left side of FIG. 3 with respect to the metal fine particle generation unit 10) Ame side and the mist passage region (that is, the mist generation unit) 11 is a shielding wall that divides the area Ami on the left side of FIG.

  The attachment member 6 d is a member that protrudes radially outward from the tubular portion 6 a of the inner cylinder 6, and is a member that attaches the metal particulate generation unit 10 to the inner cylinder 6. And it has the shielding wall part 6e extended toward the metal microparticle discharge port 20a side from the metal microparticle production | generation part 10 side. Since this shielding wall portion 6e is provided on the attachment member 6d, it is inevitably disposed close to the metal fine particle generating portion 10, and the mist reaches the metal fine particle generating portion 10 side with a relatively small configuration. Can be efficiently suppressed.

  Further, a gap g2 is provided between the shielding wall portion 6e of the mounting member 6d and the cover 20, and the electric charge staying in the cover 20 arrives at the metal particulate generation portion 10 side through the shielding wall portion 6e to generate metal particulates. Inhibition of the formation of metal fine particles in the portion 10 is suppressed. Instead of providing the gap g2, a low-conductivity or insulating member may be interposed between the attachment member 6d and the cover 20.

  As shown in FIG. 3, the light guide member 21b and the mounting member 6d functioning as a shielding wall are disposed substantially parallel to the direction Dp through which the mist passes in parallel in the cavity 9, and are thus double shielding walls. Thus, the mist is more effectively suppressed from reaching the metal fine particle generation unit 10.

  Further, the hair dryer 1 according to the present embodiment has a nozzle attachment member (nozzle attachment portion) 22 attached to the discharge port side end portion of the case 3, and is provided separately from the main body portion 1b and attached to and detached from the main body portion 1b. A discharge nozzle 23 that can be attached is attached to the nozzle attachment member 22 so as to be rotatable relative to the main body 1b. In the following description, the discharge nozzle 23 and the nozzle mounting portion 22 have the upstream side on the side (right side in FIG. 14) that sucks the air flow W in a state where the discharge nozzle 23 is mounted on the nozzle mounting portion 22 of the main body 1b. The side for discharging the flow W (left side in FIG. 14) will be described as the downstream side.

  As shown in FIGS. 4 to 7, the discharge nozzle 23 includes a nozzle main body portion 23 a and an attachment portion 23 b provided integrally with the nozzle main body portion 23 a and attached to the nozzle attachment member 22.

The nozzle body 23a is formed to become thinner and wider toward the downstream side, and a flat elliptical discharge port 23c is formed at the downstream end thereof. Further, the upstream contour of the nozzle body 23 a is formed in a non-circular shape corresponding to the downstream tip of the nozzle mounting portion 22 described later, and the nozzle mounting portion is attached to the nozzle mounting member 22. It is designed to abut on the downstream end of 22.

  A cylindrical attachment portion 23b is projected from the inner side of the nozzle body 23 toward the upstream side. The mounting portion 23b is formed in a ring shape having a perfect circular cross section, that is, formed so that the outer contour becomes a perfect circle. The mounting portion 23b is attached to the outer peripheral surface 23e of the upstream end portion 23d. A plurality of protrusions 23f projecting outward in the radial direction of 23b are provided in the circumferential direction (two in the present embodiment). Then, by providing notches 23g at both ends in the circumferential direction of the protrusion 23f, a tongue piece 23h that can be elastically deformed at the center side is formed at the upstream end of the attachment 23b, and the nozzle attachment member 22 is formed. Easy to attach and detach. Note that the upstream end portion of the mounting portion may be formed thin, and the upstream end portion of the mounting portion may be bent to be easily attached to and detached from the nozzle mounting member.

  In this embodiment, the nozzle attachment member 22 is provided separately from the case 3, and a case-side attachment portion 22 a that protrudes from the downstream side of the nozzle attachment member 22 (in this embodiment, 3 in the circumferential direction). The engagement hole 22b (provided at a place) and the engagement protrusion 3c provided on the case 3 are engaged with each other to attach to the case 3 (see FIG. 14).

Further, as shown in FIG. 10, the downstream profile of the nozzle mounting member 22 is formed in a non-circular shape, and in this embodiment, has a flat shape in which the upper side is crushed to the center side in a front view. The downstream end of the nozzle mounting member 22 is an outlet opening (discharge port) 4 b of the wind tunnel 4.

Further, the inner surface 22c of the nozzle mounting member 22 is gradually reduced in diameter from the downstream end toward the upstream side , and the contour (inner contour of the nozzle mounting portion) becomes a circle corresponding to the outer contour of the mounting portion 23b. (See FIGS. 12 and 13). An end surface extending in the radial direction of the wind tunnel 4 at a portion where the inner diameter of the inner contour of the nozzle mounting member 22 is substantially the same as the outer diameter of the mounting portion 23b (in this embodiment, the upstream end of the inner surface 22c). 22d is formed.

  With this configuration, when the attachment portion 23b of the discharge nozzle 23 is inserted inside the nozzle attachment member 22, the protrusion 23f comes into contact with the inner surface 22c of the nozzle attachment member 22, and the tongue piece portion 23h becomes the attachment portion 22b. It is elastically deformed toward the center. When the discharge nozzle 23 is pushed further into the back side (upstream side), the projection 23f is pulled out to the back side (upstream side) of the inner surface 22c, the tongue piece 23h returns to the original state, and the projection 23f and the end surface 22d Are engaged so as to be slidable (see FIGS. 14 and 15). At this time, the wind tunnel 4 of the case 3 and the wind tunnel 23i of the discharge nozzle 23 communicate with each other without a gap.

  In this way, by attaching the discharge nozzle 23 to the nozzle mounting member 22, the discharge nozzle 23 is attached so as to be relatively rotatable with respect to the main body 1 b, and thus the discharge nozzle 23 is rotated to adjust the wind direction of the hair dryer 1. Will be able to. As a result, warm air can be easily applied to the hair.

  In the present embodiment, the protrusion amount of the engagement protrusion 3c of the case 3 is set to 0.7 mm or more, and the protrusion amount of the protrusion 23f of the discharge nozzle 23 is set to be 0.3 mm to 0.7 mm. doing.

  Thus, by setting the protruding amount of the engaging protrusion 3c of the case 3 to be larger than the protruding amount of the protruding portion 23f of the discharge nozzle 23, the holding force of the nozzle mounting member 22 by the case 3 is set to the nozzle mounting portion. Therefore, when the discharge nozzle 23 is removed from the nozzle mounting member 22, the nozzle mounting member 22 is prevented from being detached from the case 3.

  As described above, in this embodiment, the outer contour of the attachment portion 23b of the discharge nozzle 23 to the main body 1b is formed in a circular shape, and the attachment portion 23b slides on the nozzle attachment member (nozzle attachment portion) 22. I made contact. Therefore, even when the discharge nozzle 23 is attached to the case 3 (main body portion 1b) having the non-circular contour outlet opening (discharge port) 4b, the discharge nozzle 23 is attached so as to be rotatable relative to the main body portion 1b. Can do.

In the present embodiment, the inner surface 22c of the nozzle mounting member 22 is gradually reduced in diameter from the downstream end toward the upstream side , and the contour (inner contour of the nozzle mounting member 22) is the outer contour of the mounting portion 23b. It formed so that it might become a circle corresponding to. Therefore, the wind tunnel 4 of the case 3 and the wind tunnel 23i of the discharge nozzle 23 can be communicated with each other without a gap.

  Furthermore, in this embodiment, the nozzle main body part 23a and the attachment part 23b are provided integrally. Therefore, the number of parts can be reduced, and cost can be reduced.

  The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above embodiments, and various modifications can be made.

  For example, the nozzle mounting member and the case may be provided integrally. In addition, the shape of the discharge port of the discharge nozzle and the shape of the outlet opening are not limited to the shapes shown in the above embodiment, and can be various shapes. In addition, the metal fine particle generation unit and the mist generation unit can be arranged in the right and left direction reversed from the above embodiment, and it is possible to adopt a structure in which only one of them is arranged or a structure in which neither is arranged. is there. Moreover, you may integrate a shielding wall part with the attachment member of a mist production | generation part. Moreover, it is not essential to provide the discharge port in a cover separate from the case, and the discharge port may be provided in the case. Furthermore, instead of forming a gap between the outer wall and the shielding wall, an insulating member may be interposed between them.

It is sectional drawing of the hair dryer as a heating air blower concerning one Embodiment of this invention. It is the front view which looked at the hair dryer as a heating air blower concerning one Embodiment of this invention from the blower outlet side. It is a top view which expands and shows the part in which the metal microparticle production | generation part and a mist production | generation part are provided in the main-body part of the hair dryer as a heating air blower concerning one Embodiment of this invention. It is a top view of the discharge nozzle concerning one Embodiment of this invention. It is a side view of the discharge nozzle concerning one Embodiment of this invention. It is a front view of the discharge nozzle concerning one Embodiment of this invention. It is AA sectional drawing of FIG. It is a top view of the nozzle attachment part concerning one Embodiment of this invention. It is a side view of the nozzle attachment part concerning one Embodiment of this invention. It is a front view of the nozzle attachment part concerning one Embodiment of this invention. It is a sectional side view of the nozzle attachment part concerning one Embodiment of this invention. FIG. 12 is a BB end view of FIG. 11. It is CC end view of FIG. It is an expanded sectional side view of the hair dryer in the state which attached the discharge nozzle concerning one Embodiment of this invention. It is an expansion plane sectional view of the hair dryer in the state where the discharge nozzle concerning one embodiment of the present invention was attached.

Explanation of symbols

1 Hair dryer (heating air blower)
1b Body 4 Wind tunnel 4a Inlet opening (suction port)
4b Outlet opening (discharge port)
22 Nozzle mounting member (nozzle mounting part)
22c Inner surface 22d End surface 23 Discharge nozzle 23b Mounting member 23e Outer peripheral surface 23f Projection

Claims (2)

A heating air blower in which a discharge nozzle is detachably attached to a discharge port side tip of a main body portion having a suction port on the upstream side and a discharge port having a non-circular contour on the downstream side and having a wind tunnel formed therein. ,
The discharge port is provided with a nozzle mounting portion for mounting the discharge nozzle,
Wherein the discharge nozzle is mounted portion relatively rotatably sliding contact with the nozzle mounting portion outer shaped profile is formed in a circular shape is provided,
The nozzle mounting portion has a non-circular outer contour on the downstream side, and gradually decreases in diameter from the downstream end of the wind tunnel toward the upstream, and the contour corresponds to a circular shape corresponding to the outer contour of the mounting portion. And an end surface extending in the radial direction of the wind tunnel is formed at the upstream end of the inner surface,
The heating air blower characterized by the above-mentioned. The protrusion part which slidably contacts the upstream end surface of the said inner surface is provided in the outer peripheral surface of the said attaching part . A plurality of the protrusions are provided in the circumferential direction of the attachment part,
A pair of notches are provided at both ends in the circumferential direction of the protrusion, and a tongue piece that can elastically deform the protrusion on the center side of the mounting portion is formed between the pair of notches. The heating air blower of Claim 1 characterized by the above-mentioned.

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