JP2006075194A - Hair dryer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hair dryer having a discharge nozzle with a simple constitution reducing the loss of air volume, providing a superior blow effect, powerful and comfortable air by straightening the air from a fan. <P>SOLUTION: The discharge nozzle 16 is provided at the tip of a hair dryer body 11 incorporating a heat source 18, the fan 20a and a motor 19 driving the fan 20a and is further provided with a straightening vane 16 inside the discharge nozzle to straighten the air passing through a hot air generating chamber 17. The straightening vane 16a of the discharge nozzle 16 is disposed coaxially with the air blowing direction and has a shape of twisting the air from the hot air generating chamber 17. The straightening vane 16a is formed into such a shape as to twist the air from the hot air generating chamber 17 in the opposite direction to the rotating direction of the fan 20a. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a hair dryer, and more particularly to the structure of a discharge nozzle provided at the tip of a hair dryer body, and more particularly to a hair dryer that can provide a vigorous and comfortable wind for drying and setting hair.

  Conventionally, in hair dryers such as hair dryers, hair blossers or hand dryers (hereinafter simply referred to as “hair dryers”), the hair is dried and set by squeezing the hot air blown into the wind outlet of the hair dryer. A discharge nozzle is provided at the tip so that it can be performed. However, if the hot air is squeezed by simply changing the nozzle opening area, the conditioned wind can be obtained, but the air flow is reduced because of the loss of the wind flow.For example, the temperature of the hot air is excessive. There were problems such as rising and bruising hair. For example, some discharge nozzles have an inner nozzle with a double structure that changes the inner diameter of the nozzle, but when the inner nozzle is throttled, wind interference occurs in the downstream part of the inner nozzle as well. As a result, the wind flow is lost.

Therefore, there is a hair dryer described in the following Patent Document 1 (Japanese Patent Laid-Open No. 2001-204536) as a method of reducing wind energy loss by increasing the wind speed while suppressing a decrease in the air volume with a nozzle. As shown in FIG. 5, this is a hair dryer having a fan 54, a motor 55, a rectifying blade 56, and a heater 57 inside a housing 53 having an air outlet 51 and an air inlet 52. The nozzle 60 and the outer nozzle 59 are configured, and the inner nozzle 60 is inclined toward the nozzle center axis X from the upstream side toward the downstream side, and the sectional shape is the nozzle center axis on the downstream side of the inclined portion 60e. There was one in which a parallel portion 60f formed substantially parallel to X was formed.
JP 2001-204536 A (paragraphs [0005] to [0007], FIG. 1)

  However, all of the above-described discharge nozzles of Patent Document 1 have a wind regulation effect but do not provide a rectifying effect. And the loss of the air volume by the double structure which provided the inner nozzle in the discharge nozzle cannot be avoided.

  As a result of various studies to solve the above problems, the inventor of the present application focuses on the discharge nozzle of the hair dryer and forms a wing for rectifying the wind on the inner wall of the discharge nozzle, which has been a flat cylindrical shape in the past. As a result, it was found that the wind blown through the nozzle gained momentum, a comfortable wind was obtained, and a hair dryer excellent in blow effect could be provided, and the present invention was completed.

  That is, an object of the present invention is to provide a hair dryer that has a simple configuration and has a small airflow loss and an excellent blow effect.

  Another object of the present invention is to provide a hair dryer having a discharge nozzle that can obtain a strong and comfortable wind by rectifying the wind from the fan with a simple configuration.

  In order to achieve the above object, a hair dryer according to the invention of claim 1 is provided with a discharge nozzle at the tip of a hair dryer body incorporating a heat source, a fan, and a motor for driving the fan, and rectified inside the discharge nozzle. Featuring wings to rectify the wind that has passed through the hot air generating chamber.

  The hair dryer according to a second aspect of the present invention is the hair dryer according to the first aspect, wherein the rectifying blades of the discharge nozzle are arranged in a direction coaxial with the blowing direction of the wind, and twist the wind from the hot air generating chamber. It has a shape.

  The hair dryer according to a third aspect of the present invention is the hair dryer according to the second aspect, wherein the rectifying blades are formed in a shape that imparts a twist in a direction opposite to the rotation direction of the fan to the wind from the hot air generating chamber. It is characterized by.

  The hair dryer according to the invention of claim 4 is the hair dryer according to claim 1, wherein the discharge nozzle has a back surface formed in a circular shape corresponding to the outer case of the main body, and a front surface formed in a flat cylindrical shape, The plurality of rectifying blades provided on the inner wall surface of the discharge nozzle are arranged in a direction coaxial with the blowing direction of the wind, have a curved surface, and are formed so as to protrude into the discharge nozzle.

  By providing the above configuration, the present application has the following excellent effects. That is, according to the first aspect of the present invention, the discharge nozzle is attached to the outlet of the wind discharged from the hair dryer, and the rectifying blades are provided inside the discharge nozzle. A rectifying effect can be obtained, and a comfortable and comfortable wind can be discharged.

  According to the second aspect of the present invention, by providing the rectifying blades arranged in the same direction as the wind blowing direction and having a shape for twisting the wind from the hot air generating chamber, the wind changes from the discharge nozzle. Therefore, it is possible to provide an easy-to-use hair dryer that provides a comfortable wind.

  Further, according to the invention of claim 3, if the twist of the rectifying blade is the same direction as the rotational direction, only a wind without any momentum can be obtained, but a twist in the direction opposite to the rotational direction of the fan is formed. As a result, a comfortable wind suitable for a strong blow can be obtained.

  According to the invention of claim 4, the discharge nozzle has a circular shape on the back corresponding to the outer case of the main body and a flat cylindrical shape on the front, and a plurality of rectifying blades provided on the inner wall surface of the nozzle. Is arranged in the same direction as the wind blowing direction and has a curved surface and protrudes into the discharge nozzle, so that it has a simple structure with little airflow loss and further squeezes the wind from the fan. Therefore, it is possible to provide a hair dryer that can send out strong wind and can comfortably dry and set the hair.

  Hereinafter, the best embodiment of the present invention will be described with reference to the drawings. However, the embodiment shown below exemplifies a hair dryer for embodying the technical idea of the present invention, and is not intended to specify the present invention as this hair dryer. The same applies to other embodiments included in the scope.

  1 is a side sectional view of an embodiment of a hair dryer according to the present invention, FIG. 2 is an exploded perspective view of a main part of the hair dryer of FIG. 1, and FIG. 3 shows the structure of a discharge nozzle of the hair dryer. 3 (a) is a rear view, FIG. 3 (b) is a plan view, FIG. 3 (c) is a front view, and FIG. 4 is a perspective view showing the interior as seen from the back of the discharge nozzle.

  A hair dryer 1 in FIG. 1 includes a cylindrical main body 11 and a handle 12 attached near the rear end of the lower surface of the main body 11. The handle 12 is pivotally supported with a connecting portion protruding from the lower surface of the outer case 13 as a fulcrum, and is attached to the main body 11 so as to be foldable. The handle 12 is provided with a power switch 14.

  The outer case 13 of the hair dryer 1 includes a front portion 13a, a rear portion 13b, a rear cover 15, and a discharge nozzle 16. The front part 13a, the rear part 13b and the discharge nozzle 16 of the outer case are formed of a molded product of heat-resistant transparent plastics such as polycarbonate or heat-resistant ABS resin. As shown in FIG. 2, the outer case 13 is composed of two parts, and the front part 13a has a substantially cylindrical shape with the profile of the longitudinal section tapered forward. The rear portion 13b has a short cylindrical shape and is joined to the front portion 13a. The rear end of the main body 11, that is, the rear end of the rear portion 13b of the outer case is an air inlet provided with a plurality of holes for introducing outside air, and a metal plate having a number of honeycomb-shaped holes is a circular dome shape. It is the rear cover 15 attached by forming. The front end opening of the front portion 13a of the outer case is a wind blowout opening, and a discharge nozzle 16 is rotatably attached to the front end opening.

  As shown in FIG. 1, a hot air generation chamber 17 is disposed inside the outer case 13 of the main body 11. That is, the hot air generating chamber 17 formed in a cylindrical shape has an insulating outer cylinder 17b disposed in an outer wall 17a thereof, and a blower grill 21 is attached to a position where hot air is blown outside the tip of the hot air generating chamber 17, A heat source 18 such as a nichrome wire is housed inside the insulating outer cylinder 17b, a fan motor 19 for sending air is housed behind the heat source, a fan chamber 20 is provided thereafter, and a fan 20a connected to the motor 19 is provided. Yes. The air blowing chamber 20 sends the air taken in from the air inlet of the rear cover 15 to the hot air generating chamber 17 by the fan 20a.

  As shown in FIG. 2, a plurality of heat radiating plates 22 are provided in the hot air generation chamber 17 so as to be arranged radially in the axial direction of the hair dryer body 11 from the insulating cylinder 23 that houses the motor 19 to the front portion. Nichrome wire or the like (not shown) is wound so as to connect the outer edges of the heat radiating plates 22. The wind of the fan 20a in the blower chamber 20 connected to the motor 19 is sent to the front discharge nozzle 16 between the heat radiating plates 22.

  The outer wall 17a of the hot air generating chamber 17 made of aluminum, galvanized steel plate, stainless steel or the like has a vertical section of the hot air generating chamber 17 as shown in, for example, a longitudinal section in FIG. 1 and an external view in FIG. It is shaped so as to have a plurality of corrugations that are perpendicular to the direction, and its outer surface is subjected to processing such as polishing and plating so that reflection is good. In the figure, the corrugation is shaped to have three peaks, but the number is not limited. However, from the relationship of creating a shadow, it seems that two concaves and three convexes are preferable. The corrugated irregularities are formed in a convex shape having a large inner diameter so that the air flow path becomes larger on the intake side. By doing so, the outer wall 17a does not hinder the smooth inflow of air. When the outer wall 17a is configured as described above, and the outer case 13 of the main body 11 is transparent or semi-transparent, the shadows due to the corrugations of the outer wall 17a of the hot air generating chamber 17 can be seen through the outer case 13 through the outside. Since the light transmitted through the case 13 hits the wall and is reflected, and changes depending on the viewing position to create various patterns, a hair dryer having an aesthetic appearance can be obtained.

  In addition, the corrugated unevenness of the outer wall 17a of the hot air generating chamber 17 creates a space between the outer case 13 and an air layer in the space, so that the heat shielding effect can be improved. However, the present invention is not limited to the shape of the outer wall 17a described here, and may have, for example, an outer wall having no unevenness.

  In the hot air generating chamber 17, the heat radiation plate 22, the heat source 18, the motor 19, the fan 20 a and the like are incorporated in the blower chamber 20, and further these components are incorporated in the outer case 13 of the main body 11. In the step of butt-joining the rear portion 13b of the outer case, the heat source 18 and the motor 19 are disposed in the front portion 13a in the front-rear direction, and the heat source 18 and the motor 19 are stored in advance. Further, the outer casing 13 is covered with an outer wall 17a of a hot air generating chamber which is made of a metal having excellent luster and light color that easily reflects heat rays such as aluminum and stainless steel, and serves as a heat shielding means. The air blowing chamber 20 is housed in the rear portion 13b, and then the hot air generating chamber 17 is inserted into the front portion 13a of the outer case from the rear of the front portion 13a.

  In this case, the fan 20 a connected to the motor 19 is fitted into a fan holding cylinder of the air blowing chamber 20 disposed on the rear side of the hot air generating chamber 17. The motor 19 is fitted into an insulating cylinder 23 having a front end formed in a shape for holding a heat source disposed inside the hot air generating chamber 17. A heat source heater is wound around the outer periphery of a plurality of heat radiating plates 22 projecting radially from the outer periphery of the insulating cylinder 23. Further, the outer periphery of the heater is surrounded by an insulating outer cylinder 17b such as a mica sheet concentrically integrated with the insulating cylinder 23 so as to connect the heat radiating plates 22, and the insulating outer cylinder 17b is formed on the outer wall 17a of the hot air generating chamber. Inserted and fitted on the inner surface.

  Next, the discharge nozzle 16 will be described with reference to FIGS.

  As shown in FIGS. 1 and 2, the discharge nozzle 16 that is rotatably fitted to the tip of the outer case 13 has a circular shape on the back surface corresponding to the main body outer case 13a to be mounted, and the front surface restricts the blowing air. Deformed into a flat oval shape. The dotted line in FIG. 3A shows a discharge device 16c for generating ions that protrudes into the discharge nozzle 16 from the tip of the dryer body.

  The discharge nozzle 16 of the hair dryer according to the present invention is provided with a plurality of rectifying blades 16a on the inner wall surface. In this embodiment, the six rectifying wings 16a are coaxial with the blowing direction of the wind. The rectifying blades 16a have curved surfaces 16b and project into the discharge nozzle 16 in such a shape as to twist the wind from the hot air generation chamber 17. Yes. The direction of twist of the rectifying blade 16a is a twist in the direction opposite to the rotation direction of the blower fan 20a, and thereby a comfortable wind suitable for a strong blow corrected by the rectifying blade 16a from the discharge nozzle 16 is obtained. can get. Incidentally, if the twist of the rectifying vanes 16a is the same direction as the rotation direction of the fan, only wind without any momentum can be obtained.

  In this manner, the rectifying blades 16a are arranged in the same direction as the wind blowing direction, and the curved surface imparts a twist to the wind from the hot air generating chamber 17, whereby a rectifying effect is obtained, and the wind blown from the discharge nozzle 16 has a momentum. Therefore, a comfortable wind can be obtained, and an easy-to-use hair dryer that can easily dry and set the hair can be provided. Further, by rotating the discharge nozzle 16, it is possible to change the wind blown from the discharge nozzle 16.

  In the present invention, the number of rectifying blades 16a of the discharge nozzle is not particularly limited. However, if the amount is too small, the change is poor. If the amount is too large, the air volume is lost. Also, not only one type of wing but also two or more types of wings may be mixed, which further changes the rectification.

  Further, the rectifying blade 16a is made of the same material as that of the discharge nozzle 16 and is formed integrally with the discharge nozzle 16. The material is preferably a heat-resistant plastic material.

  The hair dryer of the present invention is not limited to the structure described in the above embodiment, and it is easy to design the rectifying blade in another form that twists the wind, and the deformation is free.

  In the above-described embodiments, the electrothermal hair dryer has been described. However, it will be apparent to a trader who asks that the discharge nozzle of the present invention is not limited to the electrothermal type, and can be applied to, for example, a gas combustion type hair dryer.

FIG. 1 is a side sectional view of an embodiment of a hair dryer according to the present invention. FIG. 2 is an exploded perspective view of the main part of the main body of the hair dryer of FIG. FIG. 3 is a view showing the structure of the discharge nozzle of the hair dryer, FIG. 3 (a) is a rear view, FIG. 3 (b) is a plan view, and FIG. 3 (c) is a front view. FIG. 4 is a perspective view showing the inside of the discharge nozzle as viewed from behind. FIG. 5 is a side view showing the configuration of a conventional hair dryer.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Hair dryer 11 Main body 12 Handle 13 Outer case 14 Power switch 15 Rear cover 16 Discharge nozzle 17 Hot air generating chamber 17a Hot air generating chamber outer wall 17b Insulating outer cylinder 18 Heat source 19 Fan motor 20 Blower chamber 20a Fan 21 Blowing grill 22 Heat sink 23 Insulation cylinder

Claims (4)

  A discharge nozzle is provided at the tip of a hair dryer body incorporating a heat source, a fan, and a motor for driving the fan, and a rectifying blade is provided inside the discharge nozzle to rectify the wind that has passed through the hot air generation chamber. Hair dryer.   The hair dryer according to claim 1, wherein the rectifying blades of the discharge nozzle are arranged in a direction coaxial with a blowing direction of the wind, and have a shape that twists the wind from the hot air generating chamber.   The hair dryer according to claim 2, wherein the rectifying blade is formed in a shape that imparts a twist in a direction opposite to a rotation direction of the fan to the wind from the hot air generating chamber.   The discharge nozzle has a circular rear surface corresponding to the outer case of the main body and a flat cylindrical shape on the front surface, and a plurality of rectifying vanes provided on the inner wall surface of the discharge nozzle are coaxial with the wind blowing direction. The hair dryer according to claim 1, wherein the hair dryer has a curved surface and protrudes into the discharge nozzle.

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