curling iron

Abstract

To provide a curling iron capable of neatly curling the hair only by being provided with a simple configuration.SOLUTION: A curling iron includes a handle 11, a cylindrical heating rod 12 provided at the end of the handle 11, and a clip lever 13 supported by the handle 11 and openable / closable with respect to the heating rod 12. To an outer peripheral surface of the heating rod 12, a slide sheet 63 which is made of fluorine resin and has low friction coefficient is pasted. To an inner peripheral surface of the clip, the slide sheet 63 having low friction coefficient also is pasted. For curling and setting the hair, the hair is clamped between the heating rod 12 and the clip lever 13.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a curling iron having a cylindrical heating rod around which hair is wound to curl the hair, and a clip lever that presses the hair against the heating rod. [Background technology]

[0002] Curling irons with this type of configuration are disclosed in Patent Documents 1 and 2. When using such a curling iron, hair is clamped between a cylindrical heating rod and a clip lever 13 shaped to fit along the outer periphery of the heating rod, and the curling iron is moved toward the ends of the hair, causing the hair to curl with the heat of the heating rod. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2007-260059 [Patent Document 2] Registered Utility Model No. 3144091 Summary of the Invention [Problem to be solved by the invention]

[0004] Incidentally, when the heating rod is constructed from a single cylinder and a flat, soft sheet with a low coefficient of friction is wound around the outer periphery of the heating rod, it is necessary to butt the side edges of the sheet or overlap the side edges of the sheet. If the sheet edges are butted, gaps will occur between the side edges unless the sheet size and winding precision are high. On the other hand, if the side edges of the sheet are overlapped, no gaps will occur between the side edges, but steps will occur due to the overlap, which will impair the appearance and usability. Furthermore, if a cylindrical sheet is used instead of a flat sheet, the sheet must be made of a material that shrinks when heated, otherwise unevenness may occur on the surface of the sheet. This requires the sheet to have heat-shrinkable properties, which places restrictions on the material that can be used.

[0005] The object of the present invention is to There are few restrictions on the material that can be used as a soft sheet with a low friction coefficient that covers the outer periphery of the heating part. To provide a curling iron. [Means for solving the problem]

[0006] In order to achieve the above object, the present invention provides a curling iron including a handle, a cylindrical heating unit provided at the tip of the handle and containing a heating element, and a clip lever supported by the handle and capable of opening and closing the heating unit, The heating unit is composed of a pair of half-split housings, the outer periphery of the housings is covered with a soft sheet having a low coefficient of friction, and the side edges of the sheet are sandwiched between the two housings.Here, the low friction coefficient sheet refers to a sheet having a lower friction coefficient than the friction coefficient of the surface of the heating rod and the surface of the metal or synthetic resin that forms the base of the clip lever.

[0007] In the present invention, There are fewer restrictions on the material of the soft sheet with a low friction coefficient that covers the outer periphery of the heating part. [Effects of the Invention]

[0008] As described above, according to the present invention, There are fewer restrictions on the material of the soft sheet with a low friction coefficient that covers the outer periphery of the heating part. This has the following effect. [Brief explanation of the drawings]

[0009] [Figure 1] Front view of a curling iron. [Figure 2] FIG. [Figure 3] FIG. 2 is an exploded perspective view of the handle of the curling iron. [Figure 4] (a) is an exploded perspective view of the heating rod part of the curling iron, and (b) is a partially exploded perspective view of the heater part. [Figure 5] Bottom view of the handle top cover. [Figure 6] FIG. [Figure 7] FIG. [Figure 8] Bottom view of the mode indicator lamp. [Figure 9] FIG. [Figure 10] FIG. [Figure 11] Cross-sectional view taken along line 11-11 in Figure 1. [Figure 12] Cross-sectional view taken along line 12-12 in Figure 1. [Figure 13] Cross-sectional view taken along line 13-13 in Figure 1. [Figure 14] FIG. 2 is a longitudinal cross-sectional view of the heating rod portion of the curling iron. [Figure 15] Curling iron electrical circuit diagram. [Figure 16]FIG. 2 is a block diagram showing a control configuration of the curling iron. DETAILED DESCRIPTION OF THE INVENTION

[0010] (Embodiment) DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, specific embodiments of the present invention will be described with reference to the accompanying drawings. 1 and 2, the curling iron of this embodiment includes a handle 11, a heating rod 12 as a heating unit that protrudes from the front end of the handle 11, and a clip lever 13 that is supported on the handle 11 so as to be pivotable open and closed in the vertical direction. A user of the curling iron can curl their hair by gripping the handle 11, pinching their hair between the heated heating rod 12 and the clip lever 13, and moving the curling iron toward the ends of the hair so as to wrap the hair around the outer periphery of the heating rod 12. In the curling iron of this embodiment, the clip lever 13 side is the upper part of the curling iron and the heating rod 12 side is the lower part, the heating rod 12 side is the front part of the curling iron, and the handle 11 side is the rear part.

[0011] The handle 11 and its related components will now be described. As shown in Figure 3, the handle 11 has a main frame 16 with a semi-cylindrical cross section, and an electrical board 17 on which various electrical and electronic devices are mounted is fixed inside the main frame 16. Sub-frames 18, 29 are attached to the front and rear of the open lower portion of the main frame 16 so as to cover the electrical board 17 from below. The main frame 16 and the sub-frames 18, 29 form a handle frame 19. An upper cover 20 is attached to the upper side of the handle frame 19, and a pair of lower covers 21 are attached to the lower side of the handle frame 19. The surface of the upper cover 20 is coated with a translucent plating. The upper cover 20 and the lower cover 21 form the outer shell of the handle 11.

[0012] 3, a power supply connector 22 is attached to the rear end of the handle 11. A power supply cord 23 is detachably connected to the power supply connector 22. As shown in FIGS. 2 and 3 , the electrical board 17 supports a power switch 24, a positive side switch 25, and a negative side switch 26, which are operated by the user of the curling iron. These switches 24, 25, and 26 are exposed to the outside through a through hole 27 in the main frame 16 and a through hole 28 in the upper cover. Decorative covers 241, 251, and 261 cover the upper ends of the switches 24, 25, and 26. Turning the power switch 24 on and off controls the heater 66, which serves as a heating element of the heating rod 12 (described later), to generate and stop heat generation. Operating the positive side switch 25 increases the heating temperature of the heating rod 12 caused by the heater 66. Operating the negative side switch 26 decreases the heating temperature of the heating rod 12. In this embodiment, the heating temperatures of the heating rod 12 are set to 120°C, 140°C, 160°C, and 180°C.

[0013] As shown in Figures 2 and 3, the electrical board 17 supports four temperature indicator lamps 31, 32, 33, and 34 and one lock indicator lamp 35, and these lamps 31 to 35 are located in a through hole 36 in the main frame 16. The temperature indicator lamps 31 to 34 each display a different value depending on the selected set temperature of the heating rod 12. The lock indicator lamp 35 indicates that the set heating temperature is locked. The electrical board 17 supports a mode indicator lamp 37 that lights up to indicate the curl setting mode in which the heating rod 12 has reached the set heating temperature. The mode indicator lamp 37 has a pair of light-emitting elements 371. The main frame 16 is formed with a light-transmitting window 38 consisting of a pair of left and right slits facing the light-emitting elements 371 of the mode indicator lamp 37. A transparent synthetic resin plate is fitted into this light-transmitting window 38.

[0014] As shown in FIG. 5, a light-shielding film 40 made of a black coating is attached to the inner surface of the upper cover 20. Temperature indicator characters 41 indicating the set temperature of the heating rod 12 are attached to this light-shielding film 40 at positions facing the temperature indicator lamps 31, 32, 33, and 34, and a graphic mark 42 indicating the locked state is attached to a position facing the lock indicator lamp 35. An indicator window 43 is attached to the light-shielding film 40 at a portion facing the light-transmitting window 38. The temperature indicator characters 41, graphic mark 42, and indicator window 43 are formed by partially whitening the light-shielding film 40 in the shape of letters, graphics, or windows (where no black coating is formed). Therefore, when the lamps 31 to 35 are lit, the temperature display or graphic appears on the upper cover 20. When the mode indicator lamp 37 is lit, the indicator window 43 is illuminated. The display modes of the lamps 31 to 35 and 37 will be described later.

[0015] 6 to 10, the mode indicator lamp 37 includes a pair of left and right lamp housing portions 373 connected by a connecting portion 372, and a light guiding portion 374 protruding upward from the top surface of the lamp housing portion 373. The lamp housing portion 373 and the light guiding portion 374 form a light emitting portion 371. When a lamp (not shown) made of a light emitting diode in the lamp housing portion 373 emits light, the light guiding portion 374 emits light. This emitted light illuminates both sides of the clip lever 13 on the handle 11 through the light-transmitting window 38 and the display window 43.

[0016] Next, the heating rod 12 and its related configuration will be described. As shown in Figure 4(a) and Figures 11 to 13, a support member 46 is fixed to the front end of the main frame 16, and a flange 47 is formed at the front end of the support member 46. Approximately U-shaped position restriction protrusions (hereinafter referred to as protrusions) 48, 49 are formed at the top, bottom, left and right positions on the front surface of the flange 47. A carp-mouth shaped (approximately cylindrical) retaining ring 50 is attached to the outer periphery of the flange 47.

[0017] As shown in FIG. 4(a) and FIGS. 11 to 13, the rear ends of rod pieces 55, 56, which function as a pair of upper and lower half-shaped housings each having a substantially semicircular cross section, abut against the upper and lower positions on the front side of the flange 47. The rod pieces 55, 56 are made of a metal with good thermal conductivity, such as aluminum or an aluminum alloy. A pair of protrusions 58 are integrally formed in the center of the inner surface of the peripheral wall 57 of the rod pieces 55, 56. Ribs 59 are formed on both ends of the peripheral wall 57 of the rod pieces 55, 56, extending inward. The rib 59 includes a first portion 591 and a second portion 592 that is perpendicular to the first portion 591. A groove 60 is formed between the first portion 591 and the second portion 592. The outer peripheral surface of the rod pieces 55, 56 is positioned by the retaining ring 50, and the inner peripheral surface is positioned by the protrusion 48, and the rib 59 is further positioned by the protrusion 49. In this state, the rod pieces 55 and 56 are fixed to the flange 47 by screws 61 that are screwed into the end faces of the ribs 58 from the flange 47 side.

[0018] Between both ridges 58 of the upper rod piece 55, a plurality of through holes 62 are formed in two rows in the peripheral wall 57 over almost the entire length thereof. 11 to 13, a slide sheet 63 made of a fluororesin such as polytetrafluoroethylene and having a low coefficient of friction is attached by adhesive to the entire outer circumferential surface of the peripheral wall 57 of the rod pieces 55, 56. Therefore, the through hole 62 of the upper rod piece 55 is covered by the slide sheet 63. A sealing member 64 made of heat-resistant, flexible, and elastic silicone rubber is interposed between the first portions 591 of the ribs 59 of both rod pieces 55, 56 and between the folded portions of the slide sheet 63 in the first portions 591. The sealing member 64 has a ridge 68 that is fitted into the groove 60 for positioning.

[0019] As shown in Figures 4(a), (b), 12, and 14, a backing plate 65 made of a thin metal plate is fitted between the protrusions 58. A plate-shaped heater 66 made of a metal-clad heater (a heater having a heat-generating element sealed in metal, hereinafter referred to as a heater) is supported on the backing plate 65, and a plate-shaped far-infrared ray generator (hereinafter referred to as a generator) 67 made of carbon or ceramic is placed on the heater 66 of the upper rod piece 55. A thermally conductive paste (not shown) for improving thermal conductivity is interposed between the far-infrared ray generator 67 of the upper rod piece 55 and the peripheral wall 57 and between the heater 66 of the lower rod piece 55 and the peripheral wall 57. The heater 66 generates heat, which heats the entire heating rod 12. The far-infrared ray generator 67 generates far-infrared rays. The far-infrared rays pass through the transmission holes 62 and the rod-side slide sheet 63 and are radiated to the outside. A temperature sensor 69 made of a thermistor or the like for detecting the temperature of the heater 66 is supported on the receiving plate 65 .

[0020] As shown in Figures 2, 4(a), and 14, an auxiliary handle 71 is attached to the front end of the heating rod 12. This auxiliary handle 71 has a flange member 72, and a support post 73 is integrally formed at the center of this flange member 72. A circular, metal-plated decorative plate 74 is attached to this support post 73. The decorative plate 74 and flange member 72 are fixed to the front ends of the protrusions 58 of both rod pieces 55, 56 with screws 75. An annular portion 76 for decoration is formed on the outer periphery of the decorative plate 74. Like the flange 47 of the support member 46, protrusions 48, 49 of the same shape as the protrusions 48, 49 are formed on the rear side surface of the flange member 72, and the position of the front ends of the rod pieces 55, 56 is restricted by these protrusions 48, 49.

[0021] A cone-shaped intermediate member 80 is disposed on the front end surface of flange member 72. A gripping member 81 to be gripped by the user is disposed on the front side of flange member 72 so as to enclose intermediate member 80, and this gripping member 81 is fixed to the tip of support 73 with screws 75. A decorative plate 84 for concealing the heads of screws 75 is fitted into recesses 83 on the front surface of gripping member 81. Spaces 85 for blocking heat conduction are formed between flange member 72 and intermediate member 80, and between intermediate member 80 and gripping member 81.

[0022] Next, the clip lever 13 and its related configuration will be described. As shown in FIGS. 4(a) and 14, the clip lever 13 is provided on the upper rod piece 55 side and includes a synthetic resin operating member 91, a metal heat dissipation member 92, a synthetic resin interposition member 93 interposed between the operating member 91 and the heat dissipation member 92, and a metal lever body 94. The heat dissipation member 92 and lever body 94 are made of a metal with good thermal conductivity, such as aluminum or an aluminum alloy. The operating member 91 has legs 95 on both sides, and these legs 95 are rotatably supported by the support member 46 via a shaft 96. The heat dissipation member 92 is located on the underside of the operating member 91. The lever body 94 is fixed to the operating member 91 via the interposition member 93. The clip lever 13 is biased counterclockwise in the figure by a spring 98. Therefore, the clip lever 13 is biased in a direction in which the lever body 94 contacts the upper outer peripheral surface of the heating rod 12.

[0023] As shown in Figure 12, a recess 97 is formed on the inner surface of the lower part of the lever body 94, and a slide sheet 99 on the lever side is attached to the inner bottom surface of this recess 97. At both side edges of the slide sheet 99, the depth of the recess 97 and the thickness of the slide sheet 99 are equal, and both side edges of the slide sheet 99 and the surface of the lever body 94 are continuous and form the same plane. The radius of curvature of the inner peripheral surface of the lower part of the lever body 94 is formed to be slightly larger than the radius of curvature of the outer peripheral surface of the heating rod 12. Therefore, a gap is formed between both sides of the lever body 94 and the outer peripheral surface of the heating rod 12 for guiding hair.

[0024] The slide sheets 63, 99 have a lower coefficient of friction than the coefficient of friction of the metal surfaces that form the rod pieces 55, 56 and the lever body 94, and also transmit far infrared rays well. Next, the electrical configuration of the curling iron of this embodiment will be described.

[0025] A protection switch 101 consisting of a switching element such as a triac is connected to the power supply circuit shown in FIG. 15. The power supply circuit also has two parallel-connected series circuits 104, each consisting of a heater switch 103 also consisting of a switching element such as a triac, a heater 66, and a thermal fuse 102. The thermal fuse 102 is supported on a backing plate 65 so as to be positioned on the rear side of the heater 66, and melts when the heater 66 reaches a specified temperature or higher. The protection switch 101 is turned off in the event of an abnormality such as an overcurrent. When the power switch 24 is on, the heater switch 103 is turned on and off according to the temperature detection by the temperature sensor 69. That is, when the temperature sensor 69 detects that the temperature of the heating rod 12 has exceeded the set temperature set by the plus-side switch 25 and the minus-side switch 26, the heater switch 103 is turned off, and the heater 66 stops generating heat. When the temperature sensor 69 detects that the temperature of the heating rod 12 has fallen below the set temperature, the heater switch 103 is turned on, causing the heater 66 to generate heat.

[0026] 16, a control device 105, which serves as a control means for controlling the overall operation of the curling iron, has a temperature sensor 69 connected to its input side, and a protection switch 101 and a heater switch 103 connected to its output side. The control device 105 determines the surface temperature of the heating rod 12 based on a detection signal from the temperature sensor 69. The power switch 24, the positive side switch 25, the negative side switch 26, etc. are connected to the input side of the control device 105, and various lamps, etc. are connected to its output side, but these are not shown.

[0027] The operation of the curling iron configured as above will now be described. 1 and 2 show the curling iron in a non-use state, in which the clip lever 13 is in a closed position in contact with the outer circumferential surface of the heating rod 12 due to the biasing force of the spring 98.

[0028] When curling hair using a curling iron, the power switch 24 is turned on. This starts various operations under the control of the control device 105. Next, when the plus switch 25 or the minus switch 26, which selects one of four heating temperatures from 120°C to 180°C, is turned on, both heater switches 103 are turned on, and the heater 66 is activated to generate heat. This causes the temperature of the outer periphery of the heating rod 12 to rise to the selected set temperature under the control of the control device 105, and the temperature is maintained. If the temperature of the outer periphery of the heating rod 12 slightly exceeds the set temperature, the heater 66 stops generating heat based on a detection signal from the temperature sensor 69. If the temperature of the outer periphery of the heating rod 12 falls slightly below the set temperature, the heater 66 is activated to heat the heating rod 12 toward the set temperature based on the detection by the temperature sensor 69. In this way, the heating rod 12 is maintained within a temperature range that has a width above and below the selected set temperature. The upper and lower ranges of the temperature range in this case are, for example, 2 degrees above and below the selected temperature. The set temperature includes this temperature range.

[0029] Furthermore, until the heater 66 reaches the set temperature through its heat generating operation, the temperature indicator lamps 31 to 34, which show one of the characters indicating the set temperature, flash in red, and once the set temperature is reached, they switch to white and remain lit, indicating that the set temperature has been reached. Furthermore, once the outer circumferential surface of the heating rod 12 reaches the set temperature, the mode indicator lamp 37 lights up, indicating that the curling iron is ready for use.

[0030] The curling iron is used by a user with the heating rod 12 maintained at the selected set temperature. That is, the user holds the handle 11, releases the clip lever 13 against the force of the spring 98, clamps the hair between the heating rod 12 and the clip lever 13, and closes the clip lever 13. In this way, the hair is elastically clipped onto the heating rod 12 by the clip lever 13 in accordance with the force of the spring 98. That is, under the heat of the heating rod 12, the hair is clipped in a curled state between the arc-shaped outer peripheral surface of the heating rod 12 and the arc-shaped inner peripheral surface of the clip lever 13. Then, by moving the curling iron toward the ends of the hair, the hair moves in a clipped state between the heating rod 12 and the clip lever 13 while being heated, and the heat of the heating rod 12 sets the curl.

[0031] If a certain time (e.g., 5 seconds) has passed since the outer circumferential surface of the heating rod 12 reached the set temperature, the lock indicator lamp 35 will light up and short-term operation of the plus side switch 25 and the minus side switch 26 will be invalidated, preventing changes to the set temperature. In this case, if the plus side switch 25 and the minus side switch 26 are pressed and held (e.g., for 2 seconds), the set temperature will be changed. This is to prevent the user from accidentally operating the plus side switch 25 and the minus side switch 26 while using the curling iron, causing the set temperature to deviate from the selected temperature.

[0032] When using the curling iron, the user can hold the auxiliary handle 71 with the hand opposite to the hand holding the handle 11, allowing the user to stably move the curling iron to set curls in their hair. At this time, the radius of curvature of the clip lever 13 is larger than the radius of curvature of the outer periphery of the heating rod 12, and gaps are formed between both side edges of the clip lever 13 and the outer periphery of the heating rod 12, so that the hair does not get caught on the side edges of the clip lever 13 and can be smoothly guided into the gap.

[0033] If at least one of the heater switches 103 malfunctions for some reason, causing insulation breakdown, the heater 66 may continue to generate heat beyond the set temperature. In such a case, the thermal fuse 102 melts down. This cuts off the power to the heater 66, preventing the heating rod 12 from exceeding the specified temperature.

[0034] The curling iron of this embodiment has the following effects. (1) In this embodiment, unlike the curling irons of Patent Documents 1 and 2, slide sheets 63, 99 with a low coefficient of friction are attached to both the outer circumferential surface of the heating rod 12 and the inner circumferential surface of the clip lever 13. This allows hair to pass smoothly between the heating rod 12 and the clip lever 13. Therefore, the user can operate the curling iron smoothly with light force without feeling any discomfort, such as if their hair is being pulled forcefully, resulting in a comfortable feel. In other words, even if hair is clamped between the heating rod 12 and the clip lever 13 with high pressure, the hair can pass smoothly between the heating rod 12 and the clip lever 13, allowing the hair to be curled appropriately.

[0035] (2) When the hair is clamped between the heating rod 12 and the clip lever 13, the slide sheets 63, 99, which have a soft elasticity and a lower hardness than metal, provide a cushioning effect to the hair. This, combined with the fact that the hair can pass smoothly between the heating rod 12 and the clip lever 13, prevents the cuticle of the hair from being crushed, thereby preserving the luster of the hair.

[0036] (3) For these reasons, there is no need to increase the heating temperature of the heating rod 12 more than necessary. This prevents thermal deterioration of the hair, reduces evaporation of moisture from the hair, and maintains an appropriate amount of moisture in the hair, moisturizing the hair and significantly reducing hair damage. This allows the hair to retain its luster, minimize split ends and discoloration, and curl appropriately.

[0037] (4) A recess 97 is formed on the inner peripheral surface of the clip lever 13, and the slide sheet 99 is provided within the recess 97. This prevents hair from getting caught on the side edges of the slide sheet 99, providing a more comfortable feel and preventing damage to hair. In addition, the side edges of the slide sheet 99 are less exposed, preventing damage or peeling of the side edges of the slide sheet 99.

[0038] (5) The heating rod 12 is composed of half-split rod pieces 56, and both side edges of the slide sheet 63 are folded inside the rod pieces 56, i.e., toward the rib 59, with a sealing member 64 made of silicone resin interposed between the folded positions. This holds the side edges of the slide sheet 63 in place with the sealing member 64. This prevents the slide sheet 63 from peeling off from its side edges and the formation of gaps between the folded portions of the upper and lower slide sheets 63. This prevents the appearance of the curling iron from being damaged, heat from within the heating rod 12 from escaping through gaps between the rod pieces 56, and hair from getting caught in the gaps. Furthermore, even when ironing wet hair, water droplets and moisture can be prevented from entering the heating rod 12 between the rod pieces 56.

[0039] (6) Because the rod piece 56 is split, a flat slide sheet 63, not a cylindrical one, can be attached to its outer surface. Therefore, a heat-shrinkable material is not required for the slide sheet 63, which reduces material restrictions. Furthermore, the attached slide sheet 63 does not have any irregularities, allowing for easy and attractive application. In contrast, if the heating rod is constructed from a single cylinder and a flat slide sheet is used to wrap around the outer surface of the heating rod, the following problem arises. Specifically, the slide sheet wrapped around a single cylindrical heating rod must have its side edges butted or overlapped. If the slide sheets' edges butted, gaps will form between the side edges unless the slide sheets' size and wrapping precision are high. Furthermore, if the slide sheets' side edges overlap, no gaps will form between the side edges, but the overlapping will result in unevenness, which will impair the appearance and usability. Furthermore, if a cylindrical slide sheet is used instead of a flat slide sheet, unevenness may occur on the surface of the slide sheet unless it is made of a material that shrinks when heated, so the slide sheet must have heat-shrinking properties, which places restrictions on the materials that can be used.

[0040] (7) Since a half-split rod piece 56 is used as the heating rod 12, when assembling the curling iron, it is easy to apply heat conductive grease and assemble parts such as the heater 66 through the open part of the rod piece 56, making it easy to assemble the curling iron.

[0041] (8) The outer peripheral surface of the rear end of the heating rod 12 is held in a tightly gripped state by the retaining ring 50, and the outer peripheral surface of the front end of the heating rod 12 is held in a gripped state by the annular portion 76 of the decorative plate 74. This prevents hair from getting pinched at both ends of the heating rod 12 and prevents water from getting in, contributing to comfortable use of the curling iron. In addition, because the outer peripheral surfaces at both ends of the heating rod 12 are hidden by the retaining ring 50 and the annular portion 76, peeling of the slide sheet 63 from both ends of the heating rod 12 can be prevented.

[0042] (9) Because the upper rod piece has a through-hole 62, far-infrared rays generated by the generator 67 as the heater 66 heats up pass through the through-hole 62, penetrate the slide sheet 63, and are released to the outside. This far-infrared ray promotes the heat generation of the slide sheet 63 and delivers a large amount of far-infrared rays to the hair. This allows the far-infrared ray to be used for curl setting, allowing hair to be properly styled without increasing the heating temperature. This allows for the styling to be completed in a short time, and as described above, reduces moisture evaporation from the hair, moisturizing the hair and significantly reducing hair damage. This allows hair to retain its luster and minimizes split ends and discoloration. Furthermore, because the through-hole 62 is blocked by the slide sheet 63, water droplets and moisture are prevented from entering the heating rod 12 through the through-hole 62, even when ironing wet hair.

[0043] (10) Both open ends of the heating rod 12 are closed by the flanges 47 of the support member 46 and the flange members 72. This prevents heat from escaping from the inside of the heating rod 12 toward the handle 11 and auxiliary handle 71. This allows the handle 11 and auxiliary handle 71 to be held comfortably, and prevents adverse effects on the electrical components inside the handle 11.

[0044] (11) The operating member 91 of the clip lever 13 is connected to the lever body 94 via multiple components, and a metal heat dissipation member 92 is provided, so the temperature of the heater 66 is less likely to be transmitted to the operating member 91 of the clip lever 13. This allows the user to comfortably open and close the clip lever 13.

[0045] (12) The auxiliary handle 71 at the tip of the heating rod 12 is composed of multiple parts, and spaces 85 are formed between the parts. This prevents heat from the heater 66 from being transferred to the outermost gripping member 81, making it possible to operate the auxiliary handle 71 comfortably.

[0046] (13) A metal-clad heater is used as the heater 66 for heating the heating rod 12. Therefore, the heater 66 quickly responds to the on / off operation of the heater switch 103, which occurs when the power switch 24 or the positive side switch 25 is turned on, appropriately starting and stopping heat generation. Therefore, the heating rod 12 can immediately reach a usable temperature by turning on the power switch 24. Furthermore, the heating rod 12 can immediately reach the desired set temperature by turning on the positive side switch 25. Furthermore, the temperature sensor 69 detects the temperature of the heating rod 12, allowing the heating rod 12 to immediately reach the desired set temperature. As described above, by using a metal-clad heater, the curling iron can be used immediately by turning on the power switch 24. Furthermore, the heating rod 12 can accurately maintain the temperature range set by the user, making the curling iron easy to use and generating heat appropriately according to the user's wishes. In contrast, commonly used semiconductor heaters, such as barium titanate, have poor response to power on / off and take time to heat up. For this reason, with conventional curling irons, even after the power switch is turned on, it takes a while for the iron to become ready for use. Moreover, as mentioned above, semiconductor heaters have poor responsiveness, so it takes time for the temperature to rise after dropping, making it difficult to maintain the temperature of the heating rod 12 at the set temperature. Therefore, curling irons that use semiconductor heaters as heat sources are less user-friendly.

[0047] (14) The heater 66 of the heating rod 12 is provided on each of the pair of rod segments 55, 56, and the heating operation of each heater 66 is independently controlled by the operation of the heater switch 103 under the control of the control device 105 based on detection signals from the temperature sensors 69 inside the rod segments 55, 56. This allows the temperatures of both rod segments 55, 56 to be maintained uniformly. Therefore, unlike curling irons with a single heater, when hair is wrapped around the heating rod 12, even if heat from the rod segment 55 is transferred to the clip lever 13, a temperature difference between the rod segment 55 on the side where the clip lever 13 is present and the rod segment 56 on the side where the clip lever 13 is not present can be suppressed. That is, with curling irons with a single heater, the temperature on the clip lever side of the heating rod is transferred to the clip lever, causing a temperature drop in that portion, resulting in uneven temperatures throughout the heating rod and potentially adversely affecting curl setting. The curling iron of this embodiment eliminates this risk by applying uniform heat to the hair around the entire circumference of the heating rod 12, allowing the user to achieve the desired curl setting.

[0048] (15) The mode indicator lamp 37, which indicates that the outer circumferential surface of the heating rod 12 has reached the set temperature, emits light from a pair of left and right light guides 374. This emission illuminates both sides of the clip lever 13 in the handle 11 via the translucent window 38 and the display window 43. In other words, because light is emitted from both sides of the operating member 91 of the clip lever 13, the presence of the operating member 91 does not interfere with the confirmation of the illuminated state.

[0049] (Example of change) The present invention is not limited to the configurations of the above-described embodiments, but can also be embodied in the following forms: The above-described embodiments and the following modified examples can be combined with each other within the scope of technical inconsistency.

[0050] The rod side slide sheet 63 and the lever side slide sheet 99 should be made of a material other than fluororesin, such as high density polyethylene. In the above embodiment, the heating rod 12 is configured by a pair of rod pieces 56 each having a split shape, but rod pieces each having a cylindrical shape split into three or four pieces may be used.

[0051] The rod pieces 55, 56 of the heating rod 12 and the lever body 94 of the clip lever 13 are made of a synthetic resin that has excellent heat resistance and thermal conductivity. (Other technical ideas) It is understood from the above embodiment or modified example. R An example of the technical idea is as follows.

[0052] (A) The slide sheet is made of fluororesin. The following technical ideas 1 to 3 The warming beauty device according to any one of the above. (B) The slide sheet on the rod side is made of a far-infrared transparent material. The following technical ideas 1 to 3 The warming beauty device according to any one of the above.

[0053] (C) A curling iron having a handle, a cylindrical heating section provided at the tip of the handle and containing a heating element, and a clip lever supported by the handle and capable of opening and closing the heating section, wherein the heating section is formed by a pair of half-split housings, the clip lever is provided on one side of the housing, and the heating element is provided inside each of the housings.

[0054] (D) A curling iron according to the technical idea (C) above, in which a temperature sensor for detecting the temperature of the heating element is provided in each of the housings, and a control means is provided for controlling the operation of the heating element based on the temperature detected by the temperature sensors.

[0055] (E) A curling iron according to the above technical idea (C) or (D), in which an interposing member made of synthetic resin is sandwiched between the edges of both housings. The following is a transcription of paragraphs 0004 to 0008 of the specification of the original divisional application and the original claims. (0004) Therefore, if the hair does not pass smoothly between the heating rod and the clip lever, not only is it difficult to obtain a well-shaped curl, but the hair may be damaged, and the curling iron's usability may be impaired. To avoid such damage to the hair and achieve a good usability, it is necessary to weaken the clipping force exerted by the spring on the heating rod side of the clip lever. However, doing so makes it impossible to increase the pressure applied to curl the hair, making it difficult to obtain a well-shaped curl. In such a conventional configuration, it is possible to increase the heating temperature of the heating rod in order to obtain a well-shaped curl, but doing so may result in damage to the hair, as mentioned above.

[0005] An object of the present invention is to provide a curling iron that can curl hair well by adopting a simple structure. (0006) To achieve the above object, the present invention provides a curling iron comprising a handle, a cylindrical heating rod attached to the tip of the handle, and a clip lever supported by the handle and capable of opening and closing relative to the heating rod, characterized in that a sheet with a low coefficient of friction is attached to the outer peripheral surface of the heating rod and the inner peripheral surface of the clip lever. Here, the low coefficient of friction sheet refers to a sheet with a lower coefficient of friction than the surface of the heating rod and the surface of the metal or synthetic resin that forms the base of the clip lever. (0007) In the present invention, a sheet with a low coefficient of friction is attached to the outer peripheral surface of the heating rod and the inner peripheral surface of the clip lever, so that hair can pass smoothly between the heating rod and the clip lever as the curling iron moves. This allows the curling iron to be operated smoothly with light force, resulting in a comfortable feel. Even when hair is clamped between the heating rod and the clip lever with high pressure, the hair can pass smoothly through the gap, allowing for proper curling. This eliminates the need to increase the heating temperature of the heating rod, minimizing hair damage and allowing for proper curling. Furthermore, the configuration required for this is simple, requiring only a sheet attached to the outer peripheral surface of the heating rod and another sheet attached to the inner peripheral surface of the clip lever. EFFECT OF THE INVENTION (0008) As described above, the present invention has the effect of being able to curl hair well by simply providing a simple configuration. Technical thought 1 A curling iron comprising a handle, a cylindrical heating unit provided at the tip of the handle and containing a heating element, and a clip lever supported by the handle and capable of opening and closing the heating unit, A curling iron in which a soft sheet having a low coefficient of friction is attached to the outer peripheral surface of the heating portion and the inner peripheral surface of the clip lever. Technical thought 2 The curling iron according to Technical Idea 1 has a recess formed on the inner circumferential surface of the clip lever, and the sheet is provided within the recess. Technical thought 3 A curling iron according to technical idea 1 or 2, wherein the heating section is constituted by a pair of half-split housings, the outer periphery of the housings is covered by the sheet, and the side edges of the sheet are sandwiched between the two housings. Technical thought 4 The curling iron according to Technical Idea 3, wherein the clip lever is provided on one housing side and the heating element is provided inside each of the housings. Technical thought 5 A curling iron according to technical idea 4, in which a temperature sensor for detecting the temperature of the heating element is provided in each of the housings, and a control means is provided for controlling the operation of the heating element based on the temperature detection from the temperature sensors. technical thought 6 The curling iron according to any one of Technical Ideas 3 to 5, wherein an interposing member made of synthetic resin is sandwiched between the edges of both housings. Technical thought 7 The curling iron according to any one of Technical Ideas 3 to 6, wherein a hole for transmitting far-infrared rays is formed in the housing, and the hole is covered with the sheet. [Explanation of symbols]

[0056] 11...Handle 12...Heating rod 13...Clip lever 55...Rod piece 56...Rod piece 62...Transmission hole 63...Slide seat 66...Heater 69...Temperature sensor 93...Interposition member 97...recess 99...Slide seat 105...Control device

Claims

[Claim 1] A curling iron comprising a handle, a cylindrical heating unit provided at the tip of the handle and containing a heating element, and a clip lever supported by the handle and capable of opening and closing the heating unit, The heating unit is configured by a pair of half-split housings, the outer periphery of the housing is covered with a soft sheet having a low friction coefficient, and both side edges of the sheet are sandwiched between the two housings, the side edges of the sheet are folded inward between the two housings, and a sealing member made of silicone resin is interposed between the two housings into which the sheet is folded; Each housing has a rib formed on the side edge of the peripheral wall thereof extending inward. each rib having an inwardly directed first portion, a second portion perpendicular to the first portion, and a groove between the first and second portions; The outer surfaces of the grooves are sloped so that the distance between the grooves narrows as they go outward, a space having a T-shaped cross section is formed between the ribs of the housings by the first portion, the second portion, and the groove formed in each rib, the sealing member is formed in a T-shaped cross section having ridges, and is disposed in the space with the ridges on the inside, and outer surfaces of the ridges are sloped so that the thickness of the ridges increases as they approach each other, The inclined surfaces of the protrusions are fitted into the inclined surfaces of the grooves, and the side edges of the sheet are sandwiched between the first portions of the ribs and the sealing members.

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