KR20090007164U - hair iron - Google Patents

Abstract

A case and a heater block for transferring heat generated in the case to the hair, the heater block having a heater plate that touches the hair and transfers heat to the hair, and a holder for holding the heater plate in the case. The heater iron has a hair iron, characterized in that both ends are formed in a curved portion with respect to the left and right width direction perpendicular to the longitudinal direction of the hair iron.

According to this configuration, both ends of the heater plate are treated with a gentle curved surface, so the shape of the corners at both ends in the width direction is not clear, and the hair is caught at the corners of the upper and lower heater plates when the hair is being cleaned, so that it does not slip easily. The curvature of the hair can be prevented from becoming difficult, and the damage of the hair and the pain of pulling the hair during the care can be prevented. In addition, in curvature processing such as curl processing or wave processing, when the hair is trimmed, the hair comes into contact with a large number of naturally bent portions at both ends of the heater plate, thereby efficiently transferring heat and increasing the efficiency of hair care. have.

Description

Hair iron

The present invention relates to a hair iron, and more particularly to a hair iron that is mounted on a case (hair) and the heater plate (hair heater) to close the hair is suitable for processing the hair.

In general, the hair iron is a device for forming a variety of hairstyles by applying heat to the hair, it is widely used as an apparatus for setting the hair in a general beauty salon or home.

Such a hair iron is usually composed of two parts (upper and lower case) to sandwich the hair, and at least one of them is attached with heating means for heating the hair, and the heating means is directly attached to the hair. The heating plate (hereinafter referred to as a heater plate) and a heating unit (heater) for supplying heat to the heater plate by self-heating in many cases. In addition, the heat generating portion is mounted to the case while being installed in the holder so as not to directly contact the case. Since the holder, the heat generating unit, and the heater plate can be combined with each other and treated as a single part, they are collectively referred to as heater blocks hereinafter.

When power is applied to the heat generating unit, the heater plate receiving heat from the heat generating unit is heated, and the hair, ie, hair, located between the heating plate of the upper case and the heating plate of the lower body is changed in shape by heat and pressure.

1 is a perspective view showing a conventional hair iron, wherein a pair of upper and lower cases 101a and 101b serving as skeletons of a hair iron are disposed on the inner surfaces (faces facing each other) of the heater blocks 102a and 102b and the inner cover ( 103a and 103b are fixedly arranged side by side, and one end of the upper and lower cases 101a and 101b is centered on the rotating shaft 106 by means of a pair of upper and lower cases 101a and 101b using a hinge or the like. It can be rotated by a certain angle.

By the way, the heater plate of the heater block which is in direct contact with the hair has edge portions at both ends in the left and right width directions perpendicular to the longitudinal direction. The edge can be adjusted to have a slight bend using a chamfer or a mold, but curl or wave processing that bends the hair while sandwiching the hair between the upper and lower heater plates of the hair iron. In this case, the hair may be inserted into the edge portion of the upper and lower heater plates to damage the hair, and the hair may be pulled to pain the user.

The present invention, when the hair care using the conventional hair iron described above, the hair is caught between the edge of the upper and lower heater blocks in the heater block in contact with the hair, the hair is not easily escaped, making it difficult to damage, damage the hair, or the user To solve the problem of causing the hair to be pulled,

It is an object of the present invention to provide a hair iron having a structure in which hair can pass through both ends in the width direction of the upper and lower heater blocks while the hair is placed between the heater blocks and straightened or bent.

Hair iron of the present invention for achieving the above object,

A case and a heater block for transferring heat generated in the case to the hair, the heater block having a heater plate that touches the hair and transfers heat to the hair, and a holder for holding the heater plate in the case. , The heater plate is characterized in that both ends are formed in a curved portion with respect to the left and right width direction perpendicular to the longitudinal direction of the hair iron. According to this configuration, both ends of the heater plate are treated with a smooth curved surface so that the shape of the corners at both ends in the left and right width directions is not clear.

In the present invention, the distance between both ends of the heater plate in the width direction is greater than or equal to the distance between both ends of the width direction of the holder holding the heater plate so that both ends of the heater plate surround both ends of the holder or The connection portion may be smoothly connected to form a continuous surface. However, the distance in both ends of the holder in the width direction is determined mainly on the part exposed out of the case. In this case, the hair does not touch the edges of both ends in the width direction of the holder in normal processing.

In the present invention, the curvature of both ends of the heater plate can be formed so that the radius of curvature 3 mm or more so that the corner shape formed by the heater plate surface in contact with the hair can be made inconspicuous. However, since the radius of curvature is too large, the same meaning as the flat configuration may result in the corner shape is formed while the heater plate surface and the heater plate contacting the hair meet. Therefore, even if there is no clear edge on the heater plate surface in contact with the hair, the radius of curvature of both ends of the heater plate is preferably not more than 5cm.

In the present invention, it is preferable that the heater plate is less than the distance between both ends of the width direction of the case in the width direction so that the heater plate does not stand out in the width direction from the hair iron in terms of safety and convenience of the user.

In addition, if the distance between both ends of the width direction of the heater plate is similar to the distance between both ends of the width direction of the case, or larger, the user's hand slides along the case in the direction in which the heater plate is installed and the skin may be damaged. There is concern. Therefore, it is possible to prevent the slip of the hand in the handle portion of the case, so that the user can recognize when the hand slips unconsciously can be provided with a protrusion in the middle portion forming the boundary between the handle portion and the heater block forming portion.

In the present invention, a heater block including a heater plate and a holder may have a configuration in which the heater block is tilted with respect to the case while moving in the case in a certain range by an elastic elastic material that supports the space between the case and the heater block. . However, since one of the main purposes of the tilt configuration is to prevent the hair from slipping and being caught easily at the edge of the heater plate during the processing of the curvature of the hair, the configuration for such a tilt can be omitted, so that the entire hair iron configuration can be simplified. have.

In the same configuration as the present invention, when the heater block touches the hair and the hair is directly touched by the heater plate, the edges of the upper and lower heater plates are not picked up at the edges of the heater plate, because no clear edges are formed at both ends in the width direction. It can be bent at the corner of any one of the heater plate is not easily slipped to prevent the curvature of the hair is difficult to be prevented, and the damage of the hair and the pain of pulling the hair during the care can be prevented.

In addition, when the heater plate of the present invention is smoothly connected to the edge portion of the holder holding the heater plate or covers the edge portion of the holder, the hair is caught or angled at the edge portion of the holder even if the hair is not caught at the edge of the heater plate. It can bend and prevent slipping easily.

In addition, when the hair is trimmed, especially in curvature processing such as curl processing or wave processing, the hair is brought into contact with a large portion of the naturally bent ends of the heater plate, and thus heat is efficiently transferred. The efficiency of care can be increased.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

2 is a perspective view showing an embodiment of a hair iron 200 according to the present invention,

Figure 3 is an exploded perspective view showing the internal parts together in one embodiment of the hair iron according to the present invention. In this case, the embodiment of FIG. 3 does not refer to the same embodiment as the embodiment of FIG. 2, and the upper case side part of FIG. 3 is similar to the lower case side part, and thus is omitted for convenience.

Facing each other, one side end of the upper and lower cases (210a, 210b), the heater block is installed inside each of the heat generating structure is hinged, the upper, lower cases (210a, 210b) are rotated by a predetermined angle around the hinge axis can do. The heater block installed on the side opposite to the hinge in the case is, in this embodiment, a heater plate 231 that is exposed to the outside and a heater 235 installed on the inner side (case side surface) of the heater plate to generate heat to transfer heat. And a silicon grease layer 233, although not shown, to prevent heat generated from the heater between the heater and the heater plate evenly transmitted to the heater plate 231, but not transmitted to the case 210. And a holder 220 for holding a heat insulating layer, such as a mica, and a heater plate 231 in the case.

The holder 220 has a drip gutter shape in which the cylinder or quadrangular cylinder is equally divided in the longitudinal direction, and the body generally has a low thermal conductivity, and can withstand a temperature of approximately 60 to 200 degrees C by the heat of the heater, and is elastic. It may be made of a synthetic resin material having a. Both ends of the holder 220 are covered by both ends of the heater plate when viewed in a cross section perpendicular to the longitudinal direction of the hair iron or in the width direction of the hair iron. The curve formed by the holder body spaced apart from the heater plate at an intermediate portion between the two ends forms a convex shape approaching the case side to be approximately similar to the curve of the case on which the holder is mounted, but spaced apart from the case wall at a predetermined distance.

An elastic material such as silicone rubber 250 is interposed between the holder 220 and the walls of the cases 210a and 210b. The silicone rubber is elastic, elastic, heat resistant, and forms an air layer between the holder 220 and the cases 210a and 210b to prevent heat from being transferred to the cases 210a and 210b through the holder 220. It plays a role. In addition, the silicone rubber 250 forms a free space for the holder 220 to approach the cases 210a and 210b when the surface of the heater plate 231 installed in the holder is pressed, and due to its elasticity, the heater plate 231 Contracts when) is pressed. By the elastic force at this time, the silicone rubber also serves to push the holder from the case side to the outside direction (the direction in which the holder is ejected from the case).

The case side surface of the holder is provided with a silicone rubber mounting groove or hole for fixing the silicone rubber in the center portion which is convex toward the case side from the left and right ends. When the silicone rubber 250 is first installed on the holder 220 and the holder is mounted on the cases 210a and 210b in this state, the silicone rubber is first inserted into the case and the holder is installed according to its position. The efficiency can be improved.

Reference numeral 207 denotes a metallic spring provided on the hinge shaft. In order to evenly support the upper and lower cases 210a and 210b of the hair iron coupled to the hinge axis, a spring formed by bending a plate having a width similar to the case width to draw an arc around the axis is used. However, where it is combined with the case, the elastic modulus of the spring may be too high as a strong material is used to support the case with sufficient mechanical strength. In this case, when the hair is trimmed so that the upper and lower cases 210a and 210b are brought into contact with the hair between the heater plates 231, excessive force may be required in the hand due to the elasticity of the spring 207. Therefore, in the present invention, the spring elastic force is reduced while maintaining the mechanical strength at which both ends support the case by removing a part of the middle portion in the arc direction from the portion formed by the arc acting as a spring. The removed middle portion may be used as a passage through which external power is input, or as a space for installing an electric lamp to indicate power supply.

4 and 5 respectively show a side view in the longitudinal direction of the hair iron in one embodiment of the present invention hair iron and a side view in the longitudinal direction of the conventional hair iron.

Referring to FIG. 2 while comparing these drawings, in FIG. 4, the heater plate 231 mounted on the holder has a gentle curve at both ends in the left and right width directions. Therefore, as shown in Fig. 5 showing a conventional case, it is difficult to clearly distinguish the edge portions that are distinctly bent at both ends in the width direction to form corners. In addition, both ends of the heater plate 231 in the width direction are formed to surround both ends of the holder 220 holding the heater plate 231. In this case, both ends of the heater plate may be stiff down below the plane of the holder to make it easier to form the both ends curved portion.

When grooming the hair with such a hair iron, in particular, when using the long side portion (both widthwise ends on the side view) of the heater plate 231 in a conventional hair iron such as curl processing or wave processing, the hair has a long side portion. The upper and lower heater plates 231 to be formed in the corners facing each other or bent at an edge of the holder 220 is not easily escaped.

In the embodiment of FIG. 4, the distance between both ends of the heater plate 231 is larger than the distance between both ends of the width direction of the holder 220 holding the heater plate 231, but the distance between both ends is the same. Even when both ends of the heater plate are connected smoothly between both ends of the holder and the connecting part does not touch the edges of both ends of the holder during curl processing such as curling or wave processing of the hair, the hair is easily pulled out because of the corners of the upper and lower holders. The phenomenon of not coming out will not occur.

On the other hand, both ends of the left and right width direction of the heater plate 231 is characterized in that it forms a curved portion, and the curvature is not necessarily limited, but if the radius of curvature is too small, it forms a sharp edge close to the vertical, which is substantially the same as the prior art. If the shape is too large, an edge may be formed when the heater plate surface contacting the hair and the thickness surface of the heater plate meet while forming a flat plate. Therefore, the radius of curvature formed at both ends of the heater plate surface in contact with the hair is formed to be 3 mm or more so that the corner portion formed by the heater plate surface in contact with the hair is not apparent, and preferably not more than 5 cm.

On the other hand, the hair iron is originally required to be handled with respect to the high temperature portion, but in the present invention, the heater plate 231 is a user of the user if the distance between the width direction both ends of the case 210a, 210b is greater than the distance between the width direction both ends of the case (210a, 210b) There is a greater risk that hands will come into contact with prominent parts on both sides of the heater plate. In this case, the user's hand is more exposed to the risk of burns. Therefore, it is preferable in view of safety and convenience of the user that both ends of the heater plate are smaller than both ends of the case so that the heater plate does not stand out in the width direction from the hair iron.

In addition, if the distance between both ends of the width direction of the heater plate is similar to the distance between both ends of the width direction of the case, or larger, the user's hand slides along the case in the direction in which the heater plate is installed and the skin may be damaged. There is concern. Therefore, the case protruding portion 213 may be installed in the middle portion that forms the boundary between the handle portion and the heater block forming portion so as to prevent slippage of the hand in the handle portion of the case and allow the user to recognize when the hand slips unconsciously. .

Meanwhile, in the present invention, the heater block including the heater plate 231 and the holder 220 moves in the case in a predetermined range by a stretchable elastic material that is supported while being spaced between the case 210 and the heater block. It may have a configuration as shown in Figure 6 is tilted relative to. In this case, it is possible to better prevent the hair from slipping and being caught at the heater plate edge part during the curvature of the hair.

Referring to FIG. 6, protrusions 225 are provided at both ends of the length direction of the holder 220 so as to protrude outward from both ends of the length direction. Protruding portion 225 is a part of the engaging block around the heater block, such as the case 210 or the inner cover (285 in Figure 3) when the holder 220 is pushed out of the case 210 by the silicone rubber 250 It acts as a support to prevent the holder from being caught out of the case by being caught by the locking jaw. The protrusion 225 is formed in the convex wall portion in the center of the main body of the holder 220 in the width direction of the hair iron in the main body.

The protrusion 225 has a protrusion contact surface 2251 that is in contact with a peripheral component that serves as a locking jaw, and is formed in a curved surface rather than a plane. The part (case contact surface: 211) which touches this contact surface 2251 of the protrusion part 225 and serves as a locking jaw in the peripheral parts is planar. In this configuration, if hair pressure is concentrated on one of the left and right edges of the heater plate in one of the upper and lower cases to curl or wave the hair, the entire heater block around the edge is pressed into the case. The whole is tilted at an angle relative to the case.

If the protrusion contact surface 2251 is curved as shown in Fig. 6, the periphery and the protrusion 225 are lifted up by the rolling block opposite the edge pressed by the rolling (rotating) at the contact portion, the heater block of the pressed edge portion is Pressed down. Therefore, the deformation of the silicone rubber 250 can be made small even when the heater block makes a tilt rotation at the same angle with respect to the periphery. Therefore, the elastic force is reduced, so that the pressure between the edge of the heater plate 231 and the hair is small, and the hair easily flows out of the edge, so that curling and wave processing are easy. Even when the contact surface 211 of the corresponding case 210 is curved instead of the protrusion contact surface 2251, or both of these portions form a convex protrusion surface, the rolling resistance can be reduced by the rolling.

In the present embodiment, the silicone rubber 250 is used as the elastic member between the holder 220 and the case 210, but other elastic members such as metal clips may be used.

In addition, when the heater plate 231 is formed to cover the holder 220 outside the holder 220 in the width direction as in the present embodiment, both ends of the heater plate 231 cannot enter the case 210 when tilted. Since it is caught by the case 210, the left and right ends of the heater plate 231 should have a space to move between the case 210. In addition, it is preferable to further include a configuration such as a limiting jaw (not shown) that can adjust and limit the tilt angle so that both ends of the heater plate come into contact with a part of the case by the tilt to prevent thermal denaturation. will be.

On the other hand, in the embodiment of the present invention as shown in Figure 3 is installed a heat shield structure so that the heat of the heater does not discharge to the outside from the space between the heater plate and the holder.

FIG. 7 is a perspective view illustrating a form of an exact position of the thermal barrier structure used in the embodiment of FIG. 3 and a form of a position where the top and bottom sides are flipped 180 degrees.

3 and 7 together, the heat insulating member or heat shield structure 290 of the present invention is at least a wire (2351) for supplying power to the heater plate in the longitudinal direction of the holder (the longitudinal direction of the iron for hair) It is installed to cross the longitudinal direction at one end of the side to be drawn out. Therefore, the heat shield structure 290 partitions the inner space of the case surrounded by the case, the heater block, and the inner cover to prevent the heat generated from the heater from adversely affecting the heater driving circuit installed in the space between the inner cover and the case, such as thermal damage. can do.

The heat shield structure 290 may be installed in the form of being fitted in the space between the holder and the heater plate at the circuit board side end of the heater block to block and block the heat of the space between the heater plate and the holder in the longitudinal direction. Can be. Here, the holder is provided with a wall between the heater plate and the case to form a surface approaching toward the case while forming a space while the middle portion is spaced apart from the heater plate in the width direction.

However, when a hole is formed in a part of the wall of the holder, or when the end opposite to the circuit board 280 of the heater block is not blocked separately, these open portions generate a lot of heat in the space between the holder 220 and the heater plate 231. The leaked and leaked heat may again move the air layer between the holder 220 and the case 210 to the circuit board side with a gap, thereby causing thermal damage to the circuit board 280 composed of the PCB and the circuit elements. In this case, at the circuit board side end of the heater block, a part of the heat blocking structure 290 may be formed and installed to block a space (gap) between the holder 220 and the case 210.

However, even when the heat shield structure is installed between the heater block and the circuit board, there must be an electric wire 2351 to supply electric power to the heater therebetween, so the heat shield structure 290 is connected to the heater 235. It is formed to have a hole or a peripheral groove 291 to pass through. At this time, the wire 2351 may be disconnected at the connection portion with the circuit board 280 or the connection portion with the heater 235 by a continuous external impact, and this is particularly the case when there is a sagging portion in the middle, so that the middle portion of the electric wire is blocked. It is preferable that the thermal barrier structure is formed in a structure that the structure can hold and support. When the thermal barrier structure supports the wires, it is possible to keep the two wires separated even if there is a problem such as damage or deterioration of a part of the wires or one side of the wire is separated from the contacts. Problems can also be prevented.

If there is no separate hole in the wall constituting the holder 220, the space between the holder 220 and the heater plate 231 at both ends of the heater block may be blocked by the heat shield structure 290 from the outside. In this case, more heat is dissipated through the heater plate than in the case where the heat leaks into the space inside the case, which increases the thermal efficiency of the hair iron and reduces the heat leakage from the heater block to the inside of the case. It is possible to suppress damage or heat of the case.

The thermal barrier structure is preferably made of molded silicone rubber that is flexible to fit easily into other structures, resistant to heat in the heater block, and durable.

A hole or a groove is formed in a part of the body forming the convex wall of the holder 220, and a component such as a fuse fixing spring 260 fixing the heater fuse 265 may be installed in the groove.

1 is a perspective view showing a conventional hair iron,

Figure 2 is a perspective view showing an embodiment of the present invention hair iron,

Figure 3 is an exploded perspective view showing an embodiment of the present invention hair iron broken down by parts,

Figure 4 is a side view seen in the longitudinal direction for one embodiment of the present invention hair iron,

5 is a side view seen in the longitudinal direction for the comparative example;

Figure 6 is a cross-sectional view showing a cross section perpendicular to the longitudinal direction, in order to show the engagement state at the contact surface where the protrusion and the peripheral portion of the holder in the embodiment of the present invention hair iron;

7 is a perspective view of the forward and reverse positions for the thermal barrier structure in one embodiment of the inventive hair iron.

* Explanation of symbols for the main parts of the drawings

101a: upper case 101b: lower case

102a and 102b heater blocks 103a and 103b inner cover

104a, 104b: Support 105a, 105b: Through hole

106: rotating shaft 107: spring

109: screw 110: brush

200: hair iron 210a, 210b: case

211: case contact surface 213: case protrusion

220: holder 2251: protrusion contact surface

231: heater plate 233: silicon grease layer

235: heater 2351: electric wire

250: silicon rubber 260: fuse fixing spring

280: circuit board

285: inner cover 290: thermal barrier structure

Claims (8)

A case and a heater block for transferring heat generated in the case to the hair, The heater block has a heater plate that touches the hair to transfer heat to the hair and a holder for holding the heater plate to the case, The heater plate is formed at both ends of the curved portion based on the left and right width direction perpendicular to the longitudinal direction of the hair iron, The distance between the both ends of the width direction of the heater plate is greater than or equal to the distance between both ends of the width direction of the holder. The method of claim 1, The heater plate is a hair iron, characterized in that the distance between both ends of the width direction is smaller than the distance between both ends of the width direction of the case. The method of claim 1, The curling iron of both ends of the said width direction of the said heater plate is curvature radius 3 mm or more and 5 cm or less, The hair iron characterized by the above-mentioned. The method of claim 1, In the case, the hand is prevented or recognized from slipping from the handle portion to the heater block forming portion at an intermediate portion forming a boundary between the heater block forming portion in which the heater block is installed and the handle portion held by the hand when viewed in the longitudinal direction. Hair irons, characterized in that the case protruding part is installed. The method of claim 1, The case consists of a pair of upper and lower cases, Heater blocks are installed on the surfaces of the upper and lower cases facing each other, and end portions of the handle portions in which the heater blocks are not installed when viewed in the length direction from the case are coupled to the shaft so that the upper and lower cases are fixed to each other. Hair iron characterized in that the angle is made to open. The method of claim 5, wherein Both ends are coupled to the upper and lower cases around the shaft, and an intermediate section is provided with a spring having an arc shape around the shaft. The spring is a hair iron, characterized in that the portion of the width direction of the intermediate section is removed. The method of claim 1, An elastic material is installed between the case and the heater block to exert a force in the direction of discharging the heater block from the case, and the heater block is disposed between the heater block and the parts forming the periphery of the heater block including the case. A locking jaw structure is formed to prevent being expelled from the case, And at least one of a heater block contact surface and a part contact surface forming a contact portion between the heater block forming the latching jaw structure and the component forming the peripheral portion is formed with a convex curved surface with respect to the other side. The method of claim 1, The holder has a wall between the heater plate and the case to form a surface approaching toward the case while forming a space with an intermediate portion spaced apart from the heater plate on the basis of the width direction, It is installed so as to cross the longitudinal direction at one end of the side that the electric wire for supplying power to the heater at least in the longitudinal direction to prevent the heat of the space between the heater plate and the holder is discharged in the longitudinal direction Iron for hair, characterized in that the insulating member is provided.

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