Hair iron

Abstract

The invention relates to a hair iron. A molded body made of carbon is attached to a heating wire of the blower. The molded body is accommodated in a housing, and the housing is provided with a far infrared ray passing part. The molded body is covered by a cover sheet through which far infrared rays can pass.

Description

[0001] This application is a divisional application of the following patent application:

[0002] Application number: 202080019879.8

[0003] Application date: March 12, 2020

[0004] Invention name: Heating beauty tool Technical Field

[0005] The present invention relates to a heating beauty tool such as a hair dryer and a hair curler for heating a part of the body such as hair and scalp for beautifying. Background Art

[0006] In order to dry the hair and scalp, a hair dryer is generally used, in order to straighten the hair, a hair straightener is generally used, and in order to curl the hair, a hair curler is generally used. However, as we age, the secretions from the scalp decrease, and the scalp becomes less moisturized. Therefore, when the high-temperature warm air from the hair dryer blows on the scalp, the scalp will become too dry and cause itching, etc. In addition, the hair becomes less moisturized and thinner as we age. As a result, the hair will change color or split due to high-temperature heating. In order to prevent the above situation, in Patent Documents 1 and 2, a carbon molded body for generating far-infrared rays is provided in the hair dryer. As a result, even if the heating temperature becomes low, the heating effect is supported by the far-infrared rays from the carbon molded body.

[0007] Prior art literature

[0008] Patent Literature

[0009] Patent Document 1: Japanese Registered Utility Model No. 3011964

[0010] Patent Document 2: Japanese Patent Application Publication No. 2018-15539

[0011] Technical problem to be solved by the invention

[0012] However, since the carbon molded body is fragile, it cannot withstand impact, friction, etc. Therefore, the carbon molded body is brittlely broken by external force and cracked. In addition, there are cases where a part of the carbon becomes powdery or granular and separates. In such a case, there is a concern that the user's skin, etc. will be contaminated with black. In Patent Document 1, in order to cope with such a problem, the carbon molded body is covered with a paint. However, since the strength of the paint is insufficient, the problem of Patent Document 1 cannot be eliminated. In addition, the far infrared rays from the carbon molded body are shielded depending on the material of the paint. Therefore, as a result, the heating support effect of the far infrared rays from the carbon molded body is greatly reduced. Summary of the invention

[0013] An object of the present invention is to provide a heating beauty tool which can prevent a far-infrared generator such as a carbon molded body from being damaged and can appropriately obtain a warming support effect of far-infrared rays.

[0014] Technical means for solving technical problems

[0015] In order to achieve the above-mentioned purpose, according to the first form of the present invention, a heating beauty tool is provided with a heat source for heating a human body, and a far-infrared ray generator is provided on the heat source, the far-infrared ray generator is accommodated in a shell, and a far-infrared ray passage portion is provided in the shell.

[0016] In the above structure, when the heat source generates heat, the human body is heated by the heat, and this temperature contributes to beauty. At this time, far infrared rays are generated from the far infrared ray generator by the heat of the heat source. Then, the far infrared rays reach the human body through the far infrared ray passage portion. Therefore, heating is supported by the far infrared rays. Moreover, since the far infrared rays are directly radiated to the human body without using the air as a medium, the medium air will not be heated or the heat will be diffused through the medium air to generate losses, thereby being able to perform heating and improving the heating efficiency. Furthermore, since the far infrared ray generator is housed in the outer shell, damage is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a side view of the hair dryer.

[0018] Figure 2 It is a cross-sectional view of the air supply duct part.

[0019] Figure 3 It is a perspective view showing part of a molded body unit.

[0020] Figure 4 It is an exploded perspective view showing a molded body unit.

[0021] Figure 5 It is a cross-sectional view showing a molded body unit.

[0022] Figure 6 It is a three-dimensional diagram showing a hair straightener.

[0023] Figure 7 It is a side view showing the hair straightener.

[0024] Figure 8 It is a top view showing part of the far-infrared ray generating unit.

[0025] Fig. 9 It is a cross-sectional view of part of the soldering iron sheet.

[0026] Fig.10 It is a side view showing the curling iron.

[0027] Fig.11 It is a three-dimensional diagram showing a curling iron.

[0028] Fig.12 It is a cross-sectional view of a portion of the heating unit. DETAILED DESCRIPTION

[0029] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0030] (First Embodiment)

[0031] based on Figure 1 to Figure 5 A first embodiment in which the present invention is embodied as a hair dryer (hereinafter, simply referred to as a hair dryer) 10 will be described.

[0032] like Figure 1 and Figure 2 As shown, a motor chamber 13 is arranged at the base end of a housing 12 having a handle 11 of a hair dryer 10. A motor (not shown) and a sirocco fan (not shown) rotated by the motor are arranged in the motor chamber 13. An adjustment switch 15 is arranged on the handle 11, and the adjustment switch 15 is used to start / stop the motor and the heating element 18 and adjust the heating temperature of the heating element 18. A switching switch 14 is arranged near the adjustment switch 15, and the switching switch 14 is used to switch the hair dryer 10 between a warm air supply state and a cold air supply state.

[0033] The housing 12 is provided with an air supply tube 16 extending forward from the motor room 13. Figure 2 and Figure 3 As shown, a support member 17 is fixed inside the air supply tube 16. The support member 17 is cross-shaped in cross section and has the non-flammability, heat resistance and electrical insulation properties of mica and the like. On the outer periphery of the support member 17, a heating element 18 made of nickel-chromium alloy wire is spirally wound in a manner of enclosing the support member 17. Driven by the motor, external air is sucked into the motor room 13 from the air intake port 19 on the side of the motor room 13. Then, the air is sent to the air supply tube 16. The air is heated by the heater 18 in the air supply tube 16. Then, the air is sent to the outside from the front end opening of the air supply tube 16.

[0034] A support 21 is installed at the front center of the support member 17 and at the axial center of the winding area of ​​the heating element 18. The front end of the support 21 supports a temperature sensor 22 as a human sensor. The temperature sensor 22 is arranged to face forward, and when the hair dryer 10 is used, the temperature of the scalp and hair of the user located in front of the temperature sensor 22 is detected. According to the detection result of the temperature sensor 22, the heating temperature of the heating element 18 is automatically adjusted. Therefore, even if warm air is continuously supplied to a part of the scalp, hair, etc., overheating of the part can be prevented. In addition, along with temperature detection, if high temperature and low temperature are supplied alternately, the stratum corneum shrinks and the polishing effect of the stratum corneum can be ensured. In addition, proper blood circulation of the scalp is also promoted.

[0035] A far infrared ray generating unit 23 is provided at the rear side of the temperature sensor 22. Figure 2 to Figure 5 As shown, the far infrared ray generating unit 23 includes a square cylindrical housing 26 with open front and rear ends, and a molded body unit 24 accommodated in the housing 26 . Figure 2 The temperature sensor 22 is not shown in cross section, but the far infrared ray generating unit 23 is shown in cross section. The housing 26 is made of phenolic resin containing carbon components and has a square tube shape with front and back openings. The front opening of the housing 26 constitutes a far infrared ray passage portion.

[0036] The molded body unit 24 is composed of a rectangular carbon molded body (hereinafter referred to as a molded body) 25 and a cover sheet 27 covering the periphery of the molded body 25. The molded body 25 is made of high-purity graphite. The cover sheet 27 is made of polytetrafluoroethylene (hereinafter referred to as the trade name Teflon), which is a compound of fluorine and carbon. The cover sheet 27 is wound around the outer periphery of the molded body 25 in a manner covering the upper and lower surfaces and the front and rear surfaces of the molded body 25. Therefore, the side surfaces of the molded body 25 at the front and rear openings of the outer shell 26 are closed by the cover sheet 27. In addition, the cover sheet 27 is interposed between the outer peripheral surface of the molded body 25 and the inner peripheral surface of the outer shell 26.

[0037] The hair dryer 10 of this embodiment operates as follows.

[0038] When the hair dryer 10 is used, the heating element 18 generates heat and the warm air heated by the heater 18 is released forward from the top opening of the air supply tube 16. Therefore, the hair can be dried and styled using the warm air. At this time, the forming body 25 is surrounded by the heating element 18 and heated by the heating element 18. Therefore, far infrared rays are generated from the forming body 25. The far infrared rays pass through the cover sheet 27 and are supplied to the outside from the front opening of the housing 26. In addition, the cover sheet 27 contains a carbon component. Therefore, the cover sheet 27 is heated by the heat of the heating element 18 and the far infrared rays from the forming body 25, thereby generating far infrared rays.

[0039] Thus, far infrared rays are supplied toward the user from the opening of the housing 26. Furthermore, since the housing 26 is made of phenolic resin containing carbon components, the housing 26 also generates far infrared rays by the heat from the heating element 18. Therefore, the far infrared rays can be used together with the heat of the warm air for drying and styling hair.

[0040] Therefore, the hair dryer 10 according to the first embodiment has the following effects.

[0041] (1) In the hair dryer 10, when the hair is heated by the heating element 18, the far infrared rays generated by the molded body 25 can help dry the hair, set the hairstyle, etc. Therefore, the heat generated by the heating element 18 can be reduced, so that the power consumption can be saved, and the damage to the scalp and hair can be reduced. That is, when the far infrared rays, which are a kind of electromagnetic waves, are supplied to the hair and scalp, the moisture inside the hair and scalp is heated by the resonance of microwave vibration. Therefore, even if the heating element 18 is not heated to a high temperature as described above, it is possible to effectively dry and promote blood circulation. In this way, the excessive temperature rise of the hair and scalp caused by the heating element 18 is prevented during the process of drying and setting the hair, so that low-temperature drying and low-temperature setting can be performed. Therefore, damage to the hair and scalp caused by heat can be avoided, and skin and hair care can be promoted. In addition, since the far infrared rays contribute to the temperature of the warm air, even if the warm air is low temperature, drying and setting can be performed efficiently in a short time. In addition, even when the hair dryer 10 is used away from the scalp, the far infrared rays easily reach the scalp. Thus, the scalp is properly warmed, thereby helping to promote blood circulation.

[0042] (2) The molded body 25 is housed in a hard outer shell 26 made of phenolic resin. Therefore, it is possible to suppress the physical external force from acting on the molded body 25 made of graphite, which is a brittle material. Therefore, the molded body 25 can be protected, and brittle failure of the molded body 25 can be prevented. Therefore, the far-infrared generating function will not be damaged, and the skin and the like will not be contaminated by the powder, granules, etc. of the destroyed graphite. In addition, the front surface of the molded body 25, that is, the part located in the front side opening of the outer shell 26, is covered by the cover sheet 27. Therefore, it is possible to avoid the particulate matter of the carbon constituting the molded body 25 from being scattered in the form of soot. Thus, it is also possible to prevent the powder, granules, etc. of graphite from contaminating the skin and the like.

[0043] (3) A cover sheet 27 that is softer than the shell 26 is interposed between the molded body 25 and the shell 26. Therefore, the physical external force on the molded body 25 is buffered by the cover sheet 27. Therefore, the protection function for the molded body 25 can be further improved. Moreover, the cover sheet 27 covers the molded body 25 at the opening of the shell 26. Therefore, the molded body 25 can be protected more reliably. Therefore, even if the hair dryer 10 falls on a hard ground, it is difficult for the hair dryer 25 to crack. Therefore, the molded body 25 can be effectively protected.

[0044] (4) The cover sheet 27 is made of Teflon containing carbon. Therefore, not only does the far infrared ray pass through the cover sheet 27, but the far infrared ray is also generated from the cover sheet 27 by the heat from the heating element 18. In addition, the cover sheet 27 is also heated by the far infrared ray from the molded body 25, and also generates far infrared ray. In addition, the housing 26 is made of phenolic resin containing carbon. Therefore, far infrared ray is also generated from the housing 26 by the heat from the heating element 18. Therefore, it is possible to appropriately support the drying and styling of hair by far infrared ray.

[0045] (5) Since the cover sheet 27 is made of heat-resistant Teflon, it has excellent durability.

[0046] (6) The molded body unit 24 having the molded body 25 is located at the center of the winding area of ​​the heating element 18. Therefore, the molded body unit 24 does not become an obstacle to the air flow passing over the heating element 18. Therefore, a smooth flow of warm air can be obtained. Moreover, the molded body unit 24 can obtain effective radiant heat almost evenly from the surroundings within a range of 360 degrees. Therefore, a sufficient amount of far infrared rays can be generated.

[0047] (7) The molded body 25 is lighter than ceramics having the same volume and having a far-infrared ray generating function. Therefore, it can contribute to weight reduction of the hair dryer 10.

[0048] (Second Embodiment)

[0049] Next, based on Figure 6 to Figure 9 A second embodiment is described with reference to the accompanying drawings, in which the present invention is embodied as a hair straightener 30 as a hair curling iron.

[0050] like Figure 6 and Figure 7 As shown, in the hair straightener 30, a pair of iron pieces 31 are connected at the base end so as to be openable and closable. A start switch 32 and an adjustment switch 33 for adjusting the heating temperature of a heating element 38 described later are provided on one iron piece 31.

[0051] like Figure 8 and Fig. 9As shown, a recess 34 is formed on the opposite surfaces of the top ends of the two soldering iron sheets 31. A far-infrared ray generating unit 35 is accommodated and fixed in the recess 34. The far-infrared ray generating unit 35 includes a bottom component 36 located on the inner bottom side of the recess 34, a leaf spring 37 located inside the bottom component 36, a heating element 38 composed of a ceramic heater located on the leaf spring 37, and a molded body unit 24 located on the heating element 38. The molded body unit 24 constitutes a part of the far-infrared ray generating unit 35. The molded body unit 24 includes a plate-shaped molded body 39 and a shell 40 covering the molded body 39 and having a heat sink function. A cover sheet 41 made of Teflon is adhered to the upper surface of the shell 40. An elastic block 46 made of silicone rubber is interposed between the inner bottom surface of the recess 34 and the far-infrared ray generating unit 35.

[0052] The molded body 39 is made of high-purity graphite as in the above-mentioned embodiment. The housing 40 is made of a metal with good thermal conductivity, such as aluminum or an aluminum alloy. Fixed side stoppers 42 are formed on both sides of the bottom member 36. Movable side stoppers 43 are formed on both sides of the housing 40 to face the inner surface of the fixed side stoppers 42. The heating element 38 is pressed to have no gap with the molded body 39 by the leaf spring 37. In addition, the molded body 39 is pressed to have no gap with the inner seating surface 45 of the housing 40 by the leaf spring 37. Moreover, the housing 40 is forced toward the protruding side by the leaf spring 37 until the position is restricted by the fixed side stopper 42. A plurality of through holes 44 are formed in the housing 40 to face the heating element 38. The through holes 44 constitute a passage portion for far infrared rays.

[0053] When the hair straightener 30 is used, the housing 40 is heated by the heat of the heating element 38, and the cover sheet 41 is also heated. At this time, far infrared rays are generated from the molded body 39. The far infrared rays pass through the through holes 44 of the housing 40, penetrate the cover sheet 41, and are emitted to the outside. In addition, the cover sheet 41 is heated by the far infrared rays from the molded body 39 and the heating element 38, thereby generating far infrared rays.

[0054] Therefore, when the hair is clamped by the closed iron blade 31, the hair can be straightened by sliding the hair straightener 30 in a combing manner along the length direction of the hair. In this case, in order to prevent an unreasonable force from acting on the hair, the far infrared ray generating unit 35 utilizes the elastic deformation and repulsive force of the leaf spring 37 and the elastic block 46 to be suspended and raised and lowered.

[0055] In addition to the temperature heated by the heating element 38, a large amount of far infrared rays are also supplied to the hair. Therefore, the heating temperature does not become particularly high, that is, even if the heating temperature is low, the hair can be effectively heated from the inside by the far infrared rays which are electromagnetic waves to set the hair straight. Therefore, carbonization of the hair can be suppressed, and damage to the hair can be minimized.

[0056] Therefore, the second embodiment can obtain the following effects.

[0057] (1) Since the far infrared rays from the molded body 39 and the cover sheet 41 can be used for hair styling, as described above, the hair can be properly styled without increasing the heating temperature. Therefore, the hair can be styled in a short time. In addition, the moisture of the hair evaporates less, and the moisture content can be maintained at an appropriate level, thereby greatly reducing the damage to the hair. Therefore, the luster of the hair can be maintained, and split ends and discoloration can be avoided as much as possible.

[0058] (2) The surface of the housing 40 is covered with a cover sheet 41 made of Teflon having a low friction coefficient. Therefore, the hair can be stretched smoothly with a small resistance. Therefore, as described above, the hair can be prevented from being damaged and the hair can be kept shiny, and split ends and discoloration can be avoided as much as possible. In addition, since the resistance to the perming action is reduced, the hair can be styled smoothly and easily.

[0059] (3) The housing 40 is formed with a through hole 44. Therefore, the far infrared rays generated from the molded body 39 easily reach the cover sheet 41 through the through hole 44. In this case, not only the far infrared rays are emitted through the cover sheet 41, but also the heat generation of the cover sheet 41 is promoted by the far infrared rays from the molded body 39. Therefore, a large amount of far infrared rays are further generated and can be used for the hair straightener 30.

[0060] (4) The through hole 44 of the housing 40 is closed by the cover sheet 41. Therefore, even when wet hair is brought into contact with the iron, water droplets and moisture can be prevented from entering the hair straightener 30 through the through hole 44. Therefore, the electrical components in the hair straightener 30 can be protected.

[0061] (5) The molded body 39 is accommodated in the housing 40 via the leaf spring 37. In addition, the housing 40 is covered by a flexible cover sheet 41. Moreover, the far-infrared ray generating unit 35 having the molded body 39 is received in the soldering iron sheet 31 via the elastic block 46 made of silicone rubber. Therefore, even if the soldering iron sheet 31 is handled roughly, for example, the soldering iron sheet 31 is closed forcefully and two soldering iron sheets 31 collide with each other, the collision is absorbed at multiple locations by the cover sheet 41, the leaf spring 37, and the elastic block 46. Therefore, cracking of the molded body 39 can be appropriately avoided.

[0062] (Third Embodiment)

[0063] Next, based on Figure 10 to Figure 12 A third embodiment is described with reference to the accompanying drawings, in which the present invention is embodied as a hair curling iron 50 as a hair iron.

[0064] like Fig.10 and Fig.11As shown in the figure, the curling iron 50 includes a rod-shaped soldering iron body 51 having a cylindrical circumference and a pressure rod 53 connected to the soldering iron body 51 at the base end thereof so as to be openable and closable via a shaft 52. The soldering iron body 51 includes a handle 54 and a heating part 55 constituting a far infrared ray generating unit. A start switch 56 and a regulating switch 57 for regulating the temperature of a heating element 67 described later are provided on the handle 54. The pressure rod 53 includes an operating part 58 and a pressure part 59 having a circular arc cross section along the outer circumference of the heating part 55 of the soldering iron body 51.

[0065] like Fig.11 and Fig.12 As shown, the heating part 55 is made of a metal with good heat transfer, such as aluminum or aluminum alloy. The heating part 55 has a pair of semi-cylindrical shells 61 constituting a radiator. The outer periphery of the shell 61 is entirely covered by a cylindrical cover sheet 60 made of Teflon. The two side edges of the two shells 61 are sealed by a rod-shaped seal 62. A plurality of through holes 63 constituting a far infrared passage portion are provided in the central portion in the width direction of the two shells 61. Seat surfaces 64 are formed on the inner sides of the through holes 63 of the two shells 61.

[0066] A pair of receiving parts 65 are formed on the inner side of the two housings 61. A receiving plate 66 is supported between the two receiving parts 65 via a leaf spring 69. A plate-shaped heating element 67 composed of a ceramic heater is supported on the receiving plate 66. A plate-shaped formed body 68 composed of graphite is supported on the heating element 67. The spring force of the leaf spring 69 presses the heating element 67 so that there is no gap between the formed body 68 and the seat surface 64, and the formed body 68 is pressed so that there is no gap between the formed body 68 and the seat surface 64. As a result, the formed body 68 is seated on the seat surface 64. The housing 61 constitutes a shell of the formed body 68.

[0067] When the hair curler 50 of the third embodiment is used to curl and style hair, the heating elements 67 disposed at two locations 180 degrees apart generate heat, thereby heating the entirety of the molded body 68, the housing 61, and the cover sheet 60, that is, the entirety of the heating section 55. Then, the hair is wound around the heating section 55 of the iron body 51, and the hair is pressed and clamped between the pressure rod 53 and the heating section 55. In this way, the hair is heated and styled into a curled state. At this time, far infrared rays are generated from the molded body 68. Then, the far infrared rays reach the cover sheet 60 through the through hole 63, pass through the cover sheet 60, and are emitted to the outside. The cover sheet 60 is also heated by the far infrared rays, and the cover sheet 60 is also heated by the heat of the heating element 67. As a result, far infrared rays are also emitted from the cover sheet 60. Therefore, when curling and styling hair, in addition to direct heating by the heating element 67, auxiliary heating can also be performed by far infrared rays. Therefore, in the third embodiment, the same operations and effects as those of the second embodiment can be obtained.

[0068] The present invention is not limited to the configurations of the above-described embodiments, and can be embodied in the following aspects.

[0069] In the first embodiment, as the housing 26 , a material that generates far infrared rays, such as Teflon, PPS (polyphenylene sulfide resin), or carbon-reinforced resin, may be used in addition to the phenolic resin.

[0070] In the first embodiment, the support column 21 and the temperature sensor 22 at the front end opening of the air blowing tube 16 may be omitted and the far infrared ray generating unit 23 having the molded body 25 may be provided at the opening.

[0071] In the first embodiment, although the molded body 25 is a rectangular parallelepiped, the shape of the molded body 25 may be changed to a cube, a sphere, a cylinder, a prism, a polyhedron other than a hexahedron, etc. In this case, it is preferable to change the shape of the housing 26 according to the shape of the molded body 25.

[0072] In the first embodiment, the housing 26 is formed in a square tube shape and the front and rear of the housing 26 are open. However, the front side of the housing 26 may be opened, and the rear side may be closed.

[0073] In the third embodiment, the molded body 68 may be provided only in the housing 61 near the pressure rod 53 .

[0074] In the third embodiment, the cross-sectional shape of the molded body 68 may be an arc shape along the inner peripheral surface of the housing 61 .

[0075] In the first to third embodiments, instead of the cover sheets 27, 41, 60 made of Teflon, a material that easily transmits far infrared rays, such as high-density polyethylene, may be used.

[0076] The present invention may be embodied as a heating beauty tool other than the hair dryer 10, the hair straightener 30, and the hair curler 50 of the above-described embodiments, for example, as a hair dryer having a comb and exhausting air from the base of the comb.

[0077] As the molded bodies 25 , 39 , and 68 , for example, ceramics such as alumina resin or diatomaceous earth may be used in addition to graphite.

Claims

1. A hair curler, provided with a heat source for heating a human body, characterized in that: A housing is provided on the heat source, and an upper surface of the housing is covered with a cover sheet having a small friction coefficient.

2. The hair curler according to claim 1, characterized in that: The cover sheet is made of polytetrafluoroethylene.

3. The hair iron according to claim 1 or 2, characterized in that: A far infrared ray generator is attached to the heat source. The far infrared ray generator is accommodated in the shell. A far infrared ray passage portion is provided in the shell.

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