JP2019005642A - Hair iron - Google Patents

Abstract

To provide a hair iron.SOLUTION: A hair iron includes a control part 15 for controlling heating temperature of a heater 21 to a set temperature to be maintained during use of the hair iron by installing a vibration sensor 40 to an arm. The control part 15 controls heating temperature of the heater 21 while decreasing to a prescribed temperature from the set temperature when the vibration sensor 40 detects a state of being left for more than a prescribed time.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a hair iron provided with a heater for holding hair between plates provided on a pair of arms and heating the plate.

  2. Description of the Related Art Conventionally, a hair iron that includes a plate provided on a pair of arms that sandwich hair and a heater provided to heat the plate and imparts a desired shape to hair (styling) is known (for example, , See Patent Document 1). In this type of hair iron, various devices have been conventionally used to reduce hair damage.

JP2013-154035A Special table 2014-516742 gazette

  An object of this invention is to provide a hair iron.

  The present invention provides a hair iron that includes a heater that heats the plate by sandwiching the hair with a plate provided at the tip of a pair of arms, wherein the arm is provided with a vibration sensor, and the heating temperature of the heater is adjusted using a hair iron. A control unit that controls the set temperature to be maintained therein, and when the vibration sensor detects a standing state for a predetermined time or longer, the control unit changes the heating temperature of the heater from the set temperature to the predetermined temperature. Control is performed in a lowered state.

The present invention is characterized in that the control unit differentially controls the energization amount to the heater to control the temperature of the plate.
The present invention is characterized in that a change in the temperature of the plate is detected based on the movement of the resistance value of the heater.
The present invention is characterized by comprising an LED for notifying that the temperature of the plate is not the set temperature.
The present invention is characterized in that a permanent magnet is provided on the arm.
In the present invention, the surface of the plate is covered with a platinum layer and a titanium layer.

It is a perspective view of the hair iron which concerns on embodiment of this invention. It is sectional drawing which shows the internal structure of a hair iron. It is a figure which shows the internal structure of one arm part, (A) is a plane perspective view, (B) is sectional drawing. It is sectional drawing which shows the internal structure of one arm part, (A) is sectional drawing of a front-end | tip part, (B) is a sectional part of a center part, (C) is sectional drawing of a root part. It is sectional drawing which shows the structure of a plate. It is an electric circuit diagram of a hair iron.

Embodiments to which the present invention is applied will be described below with reference to the drawings.
As shown in FIG. 1, the hair iron 1 includes an iron body 2 and a power cord 3 connected to the iron body 2. The power cord 3 includes a power plug (not shown), and power is supplied to the iron body 2 by connecting the power plug to a power outlet.
The iron body 2 includes a pair of arms 5 and 6, and plates 50 and 60 are provided on the arms 5 and 6, respectively. The hair iron 1 holds the hair between the plates 50 and 60 provided on the pair of arms 5 and 6, and heats the plates 50 and 60 with the power supplied from the iron body 2 through the power cord 3. A desired shape is imparted to the hair sandwiched between the sixty. For example, the hair iron 1 can be suitably used for applications such as correcting hair frizziness. After applying a chemical solution that cuts cystine's disulfide bond to the hair, the hair is sandwiched between heated plates 50 and 60. Thus, it can be used to correct hair curling.

  The arms 5 and 6 are made of a light material with low thermal conductivity, such as a resin material, and have a base end portion 11 (11A, 11B), a grip portion 12 (12A, 12B), and a distal end portion 13 (13A, 13B), respectively. Have The base end portions 11A and 11B are connected to each other by a shaft portion 14 so as to be rotatable. Grip portions 12A and 12B are provided at the intermediate portions of the arms 5 and 6 in the longitudinal direction. The gripping portions 12A and 12B are portions that are gripped by the practitioner when using the hair iron 1, and are formed in an appropriate thickness and shape that the practitioner can easily hold. The shaft portion 14 connects the arms 5 and 6 to each other so that the opening angle between the arms 5 and 6 becomes the maximum opening angle in a state where no force is applied to the arms 5 and 6. The maximum opening angle between the arms 5 and 6 is such that the practitioner holds the hair iron 1 with one hand, puts the thumb on one of the arms 5 and 6 and some of the remaining fingers on the other arm 5. , 6 is set to an appropriate angle that facilitates opening and closing operations.

  Plates 50 and 60 are provided at the end portions 13A and 13B of the arms 5 and 6, respectively. The plates 50 and 60 have flat plate portions 59 and 69 that sandwich the hair. The flat plate portions 59 and 69 are formed in a rectangular plate shape when the surfaces facing each other are viewed from the opposite side. The arms 5 and 6 have projecting portions 17A and 17B projecting from the plates 50 and 60 to the distal end side and both side surfaces at the distal end portions 13A and 13B. The overhanging portions 17A projecting from the plates 50 and 60 to the distal ends of the arms 5 and 6 and the overhanging portions 17B and 17B projecting to both side surfaces are formed with equal overhang amounts. That is, the plates 50 and 60 are supported by the distal end portions 13A and 13B of the arms 5 and 6 with an equal width W from the distal end sides and both side surfaces of the arms 5 and 6.

The overhang portions 17A and 17B are provided so that the plates 50 and 60 do not directly touch the scalp, face, ears, etc. of the patient when the hair is sandwiched between the plates 50 and 60.
As described above, in the present embodiment, the overhang portions 17A and 17B are provided at the distal ends and both side surfaces of the arms 5 and 6, and the plates 50, 60 was supported. With this configuration, the hair iron 1 is used in such a way that the longitudinal direction of the plates 50, 60 is substantially orthogonal to the direction in which the hair extends and the hair is sandwiched between the flat plate portions 59, 69, in addition to the direction in which the hair extends. On the other hand, hair can be sandwiched between the flat plate portions 59 and 69 with the short direction of the plates 50 and 60 being substantially orthogonal. As described above, since the plates 50 and 60 are supported with an equal width W between the distal ends and both side surfaces of the arms 5 and 6, the operating direction of the hair iron can be given freedom. Operability can be improved.

As shown in FIGS. 2 and 3, the arms 5 and 6 are formed in a hollow shape in which opposite surfaces are opened when the hair iron 1 is assembled. The openings are formed by the plates 50 and 60 and the lids 51 and 61. It is blocked. The arms 5 and 6 include a ceramic heater 21, an insulating sheet 22, a magnet plate 23, and a magnet pressing spring 34 inside the hollow portions of the tip end portions 13 </ b> A and 13 </ b> B.
The plates 50 and 60 are made of a light material having excellent thermal conductivity, such as aluminum, titanium, ceramic, gold, and platinum. The plates 50 and 60 of this embodiment are a surface treatment in which the surface of a base material formed from an aluminum alloy is polished, and the polished surface is sequentially coated with a copper thin film, a nickel thin film, a titanium thin film, and a platinum thin film. Platinum titanium plate with According to this configuration, the surface treatment applied to the surfaces of the plates 50 and 60 that directly touch the hair can reduce the frictional resistance with the hair and reduce the damage to the hair. In addition, by applying a surface treatment that covers copper, nickel, titanium, or platinum to the surfaces of the plates 50 and 60, it is possible to moderate a decrease in temperature when a disturbance such as hair coming into contact with the surface occurs. In addition, the temperature of the plates 50 and 60 can be easily controlled.

  3 and 4 are diagrams showing an internal configuration of the tip portion 13A of one arm 5. FIG. FIG. 5 is a diagram showing an arrangement configuration of the plates 50 and 60, the ceramic heater 21, the insulating sheet 22, the magnet plate 23, and the magnet pressing spring 34. As shown in FIG. 5, a pair of engagement piece portions 61 are integrally provided on the back side of the plates 50 and 60 along the longitudinal direction of the plate 50. A housing portion 52 is provided between the pair of engaging piece portions 61, and the ceramic heater 21, the insulating sheet 22, the magnet plate 23, and the magnet pressing spring 34 are housed in the housing portion 52.

  A ceramic heater 21 is disposed on the back surface of the flat plate portions 59 and 69 of the plates 50 and 60. The ceramic heater 21 is a heater that transfers heat to the flat plate portions 59 and 69 from the back side. The ceramic heater 21 is formed in a rectangular thin plate shape, and is electrically connected to the power cord 3 to generate heat. The temperature of the ceramic heater 21 is configured to be set to a predetermined temperature by operating the control panel 8 provided in the grip portion 12B. For example, the temperature of the ceramic heater 21 can be set in three stages of 50 ° C., 80 ° C., and 180 ° C., and the control panel 8 is provided with an LED that indicates the currently selected set temperature by lighting. . In addition to the temperature setting button, the control panel 8 is provided with a power button and an operation button for operating blinking of the LED 26 described later. In this embodiment, the ceramic heater 21 is used as a heater for heating the plates 50 and 60. However, in addition to the ceramic heater 21, a planar heating element such as carbon, silicon, or aluminum may be used.

  The accommodating portion 52 accommodates a magnet plate 23 disposed on the back side of the ceramic heater 21 via an insulating sheet 22 and a magnet pressing spring 34 that urges the magnet plate 23 toward the flat plate portions 59 and 69. The The insulating sheet 22 is a sheet-like electrical insulator and assists the electrical insulation of the ceramic heater 21. The magnet plate 23 is a permanent magnet having a magnetic force of 10,000 gauss or more, and is disposed so that the same pole sides face each other between the flat plate portions 59 and 69. Thus, by arranging the magnet plate 23 on the back side of the plates 50 and 60, it is possible to prevent the static electricity from being generated on the hair by generating a magnetic field around the plates 50 and 60. Further, by arranging the magnet plate 23 on the back side of the plates 50 and 60 configured as platinum titanium plates, negative ions can be generated around the plates 50 and 60, thereby improving the surrounding environment. Along with the moisturizing effect, hair damage can be reduced.

  The magnet presser spring 34 is formed of a leaf spring, and biases the magnet plate 23 in the housing portion 52 toward the back surface of the ceramic heater 21 to bring the ceramic heater 21 into close contact with the back surfaces of the flat plate portions 59 and 69, and a magnet. The plate 23 is stably supported. Further, the magnet pressing spring 34 is configured to have a spring constant that does not bend due to the reaction force due to the mutual magnetism of the magnet plates 23, 23 having the same pole facing each other.

  As shown in FIG. 4, the distal end portion 13 </ b> A of the arm 5 is formed in a curved cross-sectional arch shape with the central portion M protruding upward. In FIG. 4, illustration of the ceramic heater 21, the insulating sheet 22, the magnet plate 23, and the magnet pressing spring 34 is omitted. As shown in FIG. 4B, the tip portion 13A is provided with a plate holder 27 for holding the plate 50 inside the arch. The plate holder 27 includes a holding piece portion 32 that engages with the engaging piece portion 61 of the plate 50 and holds the plate 50. The plate holder 27 is formed from a lightweight metal such as an aluminum alloy. The plate holder 27 extends in the longitudinal direction of the distal end portion 13A, and is fixed to the inner side of the distal end portion 13A via holder plate springs 28 and 29 described later. At least one holding piece 32 may be provided at the center of the plate holder 27, or may be provided at a plurality of locations along the longitudinal direction of the plate holder 27. Although not shown, the configuration in which the plate 60 is held at the distal end portion 13 </ b> B of the other arm 6 is a configuration in which the engagement piece portion 61 is held by the plate holder 27 as in the case of the one arm 5.

  On the inner wall surface 16 of the distal end portion 13A, an LED substrate 25 is provided at the central portion M along the longitudinal direction of the arm 5. A plurality of LEDs 26 are provided on the LED substrate 25 along the longitudinal direction. As the LED 26, a bullet-type LED in which an LED light emitting element as a light source and a lens are integrally formed can be suitably used. The LED board 25 is provided with an LED 26A that emits red light, an LED 26B that emits blue light, and an LED 26C that emits green light, and a plurality of LEDs 26A, LED 26B, and LEDs 26C are provided.

  4A is a sectional view of the distal end side of the distal end portion 13A, and FIG. 4C is a sectional view of the proximal end side of the distal end portion 13A. Note that the internal configuration of the distal end portion 13B of the arm 6 may be the same as the internal configuration of the distal end portion 13A of the arm 5, or may be a configuration without the LED substrate 25 and the LED 26. A gap G is formed between both ends of the arms 5 and 6 and the ends on both sides of the plates 50 and 60. Inside the arms 5 and 6, a space P that communicates from the central portion M to the gap G is provided along the inner wall surface 16 of the arms 5 and 6. The gap G and the space P extend over the longitudinal direction of the tip portions 13A and 13B.

  The light emitted from the LED 26 provided on the LED substrate 25 is diffusely reflected by the inner wall surface 16 of the distal end portion 13A and irradiated from the space P to the outside of the arm 5 through the gap G. That is, the gap G between the both side ends of the arms 5 and 6 and the ends on both side surfaces of the plates 50 and 60 is configured as an irradiation opening of the LED 26, and the light emission of the LED 26 from the gap G serving as the irradiation opening is performed on the plate 50. , 60 is irradiated to the hair sandwiched between. When the LED 26A that emits red light is turned on, the effect of promoting hair growth can be given to the hair of the person to be treated by the emission of red light. When the LED 26 </ b> B that emits blue light is turned on, the effect of sterilizing the hair and scalp of the subject can be given by the emission of blue light. Moreover, when LED26C which light-emits green light is lighted, the effect which accelerates | stimulates stress reduction of a scalp and water | moisture retention can be given by light emission of green light. The lighting of the LED 26A, LED 26B, and LED 26C may be configured to be turned on and off by a lighting switch (not shown). Further, the LED 26A, LED 26B, and LED 26C may be turned on and off by a short period of periodic control, and the effect may be promoted by light emission of each color.

  Thus, in this embodiment, since several LED26 was provided along the longitudinal direction in the center part M of the arm 5 formed in the cross-sectional arch shape of the curvilinear shape where the center part M protrudes upwards, the hair iron 1 is large-sized. The LED 26 can be provided without conversion. Further, the light of the LED 26 provided in the central portion M of the arm 5 is diffusely reflected by the inner wall surface 16 of the arm 5, and the gap between the both side ends of the arms 5 and 6 and the both side end sides of the plates 50 and 60. Since the hair is irradiated from G, the light of the LED 26 can be evenly applied to the hair sandwiched between the plates 50 and 60.

  The distal end portions 13A and 13B of the arms 5 and 6 are provided with fixing holes 30 on the distal end side and the proximal end side, in which holder plate springs 28 and 29 for biasing and holding the plate holder 27 are fixed by fixing tools 31 such as screws. Provided. The holder leaf spring 28 disposed on the distal end side of the distal end portions 13 </ b> A and 13 </ b> B is composed of a single leaf spring, and is interposed between the inner wall surface 16 and the plate holder 27. The holder leaf spring 29 disposed on the proximal end side of the distal end portions 13A and 13B is composed of two leaf springs, and is interposed between the inner wall surface 16 and the plate holder 27. The plate springs 28 and 29 for the holder serve to elastically adjust the degree of force applied to the hair when the hair is held between the flat plate portions 59 and 60 of the plates 50 and 60.

  In the hair iron 1, a sound wave vibrator 24 that generates sound wave vibrations is provided on the grip portion 12 </ b> A of one arm 5. The sonic transducer 24 generates sonic vibration of about 10 MHz, and applies the sonic vibration to the opposing regions of the plates 50 and 60 via the arms 5 and 6. By generating the sonic vibration by the sonic vibrator 24, it is possible to give the hair a vibration having a predetermined frequency or more, thereby making it easy to permeate moisture into the hair or to give a desired shape to the hair. The sound transducer 24 may be configured such that the practitioner can perform an on / off operation by operating a switch (not shown) provided on the outer surface of the grasping portion 12A, for example. According to this configuration, the sonic transducer 24 can be vibrated by a simple operation to facilitate the penetration of moisture into the hair or to impart a desired shape to the hair.

  The hair iron 1 is provided with a vibration sensor 40 as shown in FIG. As the vibration sensor 40, an acceleration sensor or a gyro sensor can be used, and the movement of the hair iron 1 is detected. When the hair iron 1 is turned on and no movement is detected by the vibration sensor 40 for a predetermined time or longer (15 minutes in the present embodiment), that is, the hair iron 1 is left unused for a predetermined time or longer. In this case, control is performed to lower the temperature of the ceramic heater 21 to a predetermined temperature (60 ° C. in the present embodiment). According to this configuration, when the hair iron 1 is left on for a predetermined time or longer with the power turned on, the control of automatically lowering the temperature of the ceramic heater 21 to the predetermined temperature is automatically performed. It can suppress and realize eco-safe operation.

  Further, the hair iron 1 includes a temperature control unit 100 and a temperature detection unit 110 in order to keep the temperature of the plates 50 and 60 constant. In the present embodiment, the CPU 15 (control unit) of the hair iron 1 functions as the temperature control unit 100. The temperature detection unit 110 includes a thermistor 111 provided on each of the plates 50 and 60 and a resistance value detection unit 112 that detects the electrical resistance value of the ceramic heater 21. In the present embodiment, the CPU 15 of the hair iron 1 functions as the resistance value detection unit 112. The CPU 15 controls the temperatures of the plates 50 and 60 based on the temperatures of the plates 50 and 60 detected by the thermistor 111 and the electrical resistance value of the ceramic heater 21 detected by the resistance value detection unit 112.

  When the hair is sandwiched between the plates 50 and 60, the temperature of the plates 50 and 60 usually drops rapidly. However, if the temperature of the plates 50, 60 of the hair iron 1 is not kept constant during use, the styling quality on the part of the hair to be treated may be insufficient. Further, in the middle of temperature control, when the temperature of the plates 50 and 60 of the hair iron 1 becomes higher than a predetermined temperature, there is a problem that the hair may be damaged. In the present embodiment, the CPU 15 performs control to keep the temperatures of the plates 50 and 60 constant by differential control in which the differential time is set short based on the change in the electrical resistance value of the ceramic heater 21 detected by the resistance value detection unit 112. Do. The CPU 15 performs control to adjust the temperature by adding an additional amount proportional to the gradient of the change in the electric resistance value of the ceramic heater 21.

  According to this configuration, since the temperature control is started based on the change in the electric resistance value of the ceramic heater 21, the temperature control can be started before the temperature of the plates 50 and 60 actually starts to drop. The temperature of 50, 60 can be controlled to be kept constant. Further, since the temperature of the plates 50 and 60 is controlled by differential control with a short differentiation time, the temperature of the plates 50 and 60 is prevented from becoming higher than the set temperature, and the temperature is set so as to quickly return to the set temperature. Can be controlled. Therefore, the temperature of the plates 50 and 60 of the hair iron 1 can be controlled to be kept constant during use, and the styling quality of the hair can be improved. Moreover, the temperature of the plates 50 and 60 of the hair iron 1 does not become higher than a predetermined temperature during temperature control, and styling can be performed without damaging the hair. In addition, the hair iron 1 of this embodiment is comprised so that the temperature of the plates 50 and 60 can be controlled in the range of a temperature change of about 1 degreeC with respect to setting temperature. Moreover, the hair iron 1 has a configuration in which the control panel 8 is provided with an LED for informing that the temperature of the set temperature by the CPU 15 is being executed by the CPU 15 and that the temperature of the plates 50 and 60 is not the set temperature. May be.

  Furthermore, the temperature detection unit 110 includes a thermistor 111, and when the temperature of the plates 50 and 60 rises to a predetermined level or more, the temperature detector 110 forcibly stops energization of the ceramic heater 21, and the plate 50, 60 is provided to prevent overheating. According to this configuration, it is possible to prevent the plates 50 and 50 from reaching a predetermined temperature or more and damaging the hair.

  As described above, according to the embodiment to which the present invention is applied, the ceramic heater 21 that holds the hair between the plates 50 and 60 provided at the tips of the pair of arms 5 and 6 and heats the plates 50 and 60 is provided. In the hair iron 1, since the plates 50 and 60 are supported with an equal width W on the tip side and both side surfaces of the arms 5 and 6, there is a degree of freedom in the operation direction of the hair iron 1, and a pair of plates The hair iron 1 can be provided by being able to clamp hair from both the longitudinal direction and the short direction of 50, 60, and having excellent operability.

  In addition, according to the present embodiment, the LED 26 is provided on the back of the plates 50 and 60, and the light of the LED 26 passes through the inside of the arms 5 and 6 from the gap G provided at the ends on both sides of the arms 5 and 6. In order to make it emit, LED26 can be arrange | positioned, without enlarging the hair iron 1 using the excess space inside the arms 5 and 6. FIG. By irradiating the hair and scalp with the LED 26, the hair can be given various effects such as an effect of promoting hair growth, an effect of sterilizing the hair and scalp, an effect of reducing stress on the scalp and promoting moisture retention. it can.

  In addition, according to the present embodiment, since the sonic transducers 24 are provided in the arms 5 and 6, in the hair shaping process, the penetration of the chemical into the hair is helped, and due to the synergistic effect with the temperature increase of the plates 50 and 60, It is possible to easily impart a desired shape to the hair and to enable an ideal treatment to the hair.

  In addition, according to the present embodiment, the vibration sensor 40 is provided on the arms 5 and 6, and the controller 15 that suppresses the heating temperature of the ceramic heater 21 when the neglected state is detected by the vibration sensor 40 is provided. According to this configuration, it is possible to prevent the ceramic heater 21 from being continuously heated in a state of being left, and it is possible to suppress wasteful electricity consumption and realize an eco-safe operation.

  In addition, according to the present embodiment, since the magnet plates 23 that are permanent magnets are provided on the arms 5 and 6, a magnetic field is generated around the arms 5 and 6, and static electricity is generated in the hair held between the plates 50 and 60. Occurrence can be prevented and damage to the hair can be prevented.

  In addition, according to the present embodiment, since the surfaces of the plates 50 and 60 are covered with the platinum layer and the titanium layer, frictional resistance between the hair and the plates 50 and 60 can be reduced, and damage to the hair can be reduced. it can. Further, by arranging the magnet plate 23 on the back surface of the plates 50 and 60 whose surfaces are covered with a platinum layer and a titanium layer, negative ions can be generated around the plates 50 and 60, thereby improving the surrounding environment. In addition to the realization, it is possible to reduce hair damage by the moisturizing effect.

  In addition, according to the present embodiment, the amount of current supplied to the ceramic heater 21 is differentially controlled and the temperature of the plates 50 and 60 is controlled, so that the temperature of the plates 50 and 60 is prevented from becoming higher than the set temperature, and The temperature can be controlled so as to quickly return to the set temperature, and the temperature can be controlled so that the styling quality of the hair can be improved without damaging the hair.

  Further, according to the present embodiment, since the temperature change of the plates 50 and 60 is detected based on the movement of the resistance value of the ceramic heater 21, the temperature change of the plates 50 and 60 can be sensitively detected. The temperature can be controlled before the temperature greatly changes, and the temperature of the plates 50 and 60 of the hair iron 1 in use can be kept constant, and the styling quality of the hair can be improved.

DESCRIPTION OF SYMBOLS 1 Hair iron 2 Iron main body 3 Power supply cord 5 and 6 Arm 13A, 13B Tip part 15 CPU (control part)
21 Ceramic heater (heater)
22 Insulation sheet 23 Magnet plate (permanent magnet)
24 Sonic transducer 25 LED board 26, 26A, 26B, 26C LED (LED light emitting element)
40 Vibration sensor 50, 60 Plate 110 Temperature detection part 112 Resistance value detection part G Gap M Center part

Claims (6)

In a hair iron equipped with a heater that heats the plate by sandwiching hair with a plate provided at the tip of a pair of arms,
A vibration sensor is provided in the arm, and a control unit that controls the heating temperature of the heater to a set temperature maintained while using a hair iron,
The control unit controls the heating temperature of the heater in a state where the heating temperature of the heater is lowered from the set temperature to a predetermined temperature when the vibration sensor detects a standing state for a predetermined time or more.
A hair iron characterized by that.   The hair iron according to claim 1, wherein the control unit differentially controls an energization amount to the heater to control a temperature of the plate.   The hair iron according to claim 1 or 2, wherein a change in temperature of the plate is detected based on a movement of a resistance value of the heater.   The hair iron according to any one of claims 1 to 3, further comprising an LED for notifying that the temperature of the plate is not the set temperature.   The hair iron according to any one of claims 1 to 4, wherein a permanent magnet is provided on the arm.   The hair iron according to any one of claims 1 to 5, wherein a surface of the plate is covered with a platinum layer and a titanium layer.

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