WO1999063856A1

WO1999063856A1 - Hair heater

Info

Publication number: WO1999063856A1
Application number: PCT/JP1999/001829
Authority: WO
Inventors: Harumi Matsumoto; Seiichi Yamada
Original assignee: Tela Co., Ltd.
Priority date: 1998-06-10
Filing date: 1999-04-06
Publication date: 1999-12-16
Also published as: AU3056699A

Abstract

A hair heater, wherein a bottom-opened hood is formed by curving a laminate comprising a reflection layer provided on the outer surface of a platy insulating material, a film pasted on the inner surface of the insulating material and a planar heater pasted on the inner side of the film, and a power source circuit is electrically connected to the planar heater.

Description

Description Head warmer Technical field

The present invention relates to a head warmer that can heat a hair of a subject in a beauty salon, a barber shop, or the like when applying permanent or treatment, hair manicure, hair color, or the like to a subject's hair. The present invention relates to a far-infrared radiation type head warmer that has a simple structure and a good finish, is safe, and is used efficiently, and a laminate used for manufacturing the head warmer. Background art

2. Description of the Related Art Conventionally, in a beauty salon, a barber shop, or the like, various devices have been used for applying a permanent to a subject's hair, performing a treatment, or simultaneously applying a permanent and a treatment.

For example, (1) It has a substantially container shape (helmet shape, cylindrical container shape, etc.) with an opening on the lower side, and has a heater that generates warm air and steam inside, and a stand that supports this. (E.g., Japanese Patent Application Laid-Open No. 55-78910), and (2) a device including an infrared radiation head directed at the head of a subject and a stand supporting the head. It has been known.

However, with these devices, the hair may be damaged because hot air heated by the sun (such as a nichrome wire) is applied to the hair or an infrared lamp is radiated to the hair. . Furthermore, these devices have a complicated structure with mechanical operating parts such as blowers, and have a certain weight. Therefore, the appearance of a device having a simpler structure, lighter weight, and easier handling has been desired.

In order to solve these drawbacks, Japanese Patent Application Laid-Open No. 9-294642 proposes a far-infrared radiation type head heater having a planar heater on the inner surface. This heater has a planar heater provided on an inner wall of a hood body having an opening, and a power supply unit for supplying electric power to the planar heater. However, even in this heater, Since the heater is composed of multiple layers of resin, heat insulating material, and sheet heater on the inner surface of the main body, the configuration is complicated, the production cost is relatively high, and the weight is large. Therefore, there is a disadvantage that a large stand is required.

The present invention has been made in order to solve the above-mentioned drawbacks. The purpose of the present invention is to make the structure simple and inexpensive, and to reduce the weight so that it can be applied to the shoulders of the subject. An object of the present invention is to provide a hair warmer that can be used while being mounted thereon, and that can use a small and lightweight stand even when it is large.

Another object of the present invention is to provide a hair warmer that can be used in a good finish and that is used safely and efficiently.

Another object of the present invention is to provide a light-weight laminate having a curved surface and easy to manufacture. Disclosure of the invention

The hair warming device (also referred to as a head warming device) according to the present invention is provided with a protective layer provided on an outer surface of a plate-shaped heat insulating material, a film adhered to an inner surface of the heat insulating material, and an inner surface side of the film. A heater body comprising a laminate to which a planar heater is attached, wherein the inner surface forms a concave surface substantially surrounding at least a part of the hair of the subject; and a heater electrically connected to the planar heater. Power supply circuit (temperature control means), thereby achieving the above object.

In one embodiment, the heater body has a substantially cylindrical hood having a first opening having a small area at an upper end and a second opening having a large area at a lower end. And a head covering sheet that covers the opening.

In one embodiment, the temperature control means is provided with an arm for holding the hood with a shoulder of a subject.

In one embodiment, a support member for supporting the hood with the head of the subject is provided on the lower surface of the head covering sheet.

In one embodiment, the head covering sheet is formed of a transparent resin. In one embodiment, the heater main body includes an upper heater main body whose inner surface substantially surrounds a head of a subject, and a hair whose inner surface is located below a shoulder of the subject. Parcel And a surrounding lower heater body.

In one embodiment, the power supply circuit may be configured to independently supply power to the planar heater of the upper heater main body and the planar heater of the lower heater main body.

In one embodiment, the power supply circuit may be configured to supply a preset power to the planar heater in accordance with an input temperature.

The operation of the present invention is as follows.

A protective layer (for example, a reflective layer) is provided on the outer surface of the plate-shaped heat insulating material, a film is attached to the inner surface of the heat insulating material, and a sheet heater is attached to the inner surface of the film. By forming a heater body with an opening at the bottom and connecting a power supply circuit (temperature control means) to the sheet heater, the structure of the heater can be made extremely simple with a four-layer structure. In addition, the shape of the heater can be kept strong by sandwiching the heat insulating material between the protective layer and the inner film.

Therefore, it is possible to uniformly heat the hair while maintaining a certain distance between the hair and the heater main body, and to adhere the sheet-like hair to the entire inner surface of the heater main body, thereby greatly improving the quality of the hair. Since the hair can be heated by the area, the hair can be efficiently heated in a short time.

The hood (laminated body) is manufactured by arranging a film on the outer surface of a mold and bonding the inner surface of a plate-shaped heat insulating material having an aluminum layer on the outer surface to the outer surface of the film via an adhesive. be able to. In this case, the heat insulating material is attached to the film with the adhesive in a curved state along the mold, and the adhesive solidifies while maintaining the curved state of the heat insulating material. I do.

Further, by using a self-temperature control type heater as the planar heater, it is possible to control the temperature to a predetermined constant temperature. Therefore, a heat insulating material having a low softening temperature (for example, a softening temperature of 60% such as foamed polyethylene) is used. Up to 70 ° C), which contributes to the weight reduction of the hair warmer. In addition, the heater temperature can be increased by using foamed urethane having a high softening temperature.

The above-mentioned warmer main body has an upper surface where the inner surface substantially surrounds the head of the user, and a lower heater body where the inner surface substantially surrounds the hair present below the shoulder of the user. With this configuration, it is possible to uniformly heat long hair while keeping it extended. Can be The above-mentioned power supply circuit is configured to independently supply power to the planar heater of the upper heater main body and the planar heater of the lower heater main body, respectively. The temperature of the hair) and the lower heating base body (the hair below the shoulder) can be set independently. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a front view of one embodiment of the head warmer of the present invention.

FIG. 2 is a rear view of the head heater shown in FIG.

FIG. 3 is a side view of the head heater shown in FIG.

FIG. 4 is a perspective view of the head warmer shown in FIG. 1 as viewed from below.

FIG. 5 is a plan view of the head warmer shown in FIG.

FIG. 6 is a cross-sectional view of a laminate constituting the head warmer shown in FIG.

FIG. 7 is a schematic diagram of the head heater shown in FIG.

FIG. 8 is a schematic diagram illustrating a method for manufacturing a hood.

FIG. 9 is a plan view of a head sheet used in the head warmer shown in FIG.

FIG. 10 is a front view of the temperature control means.

FIG. 11 is an operation explanatory view of the head warmer of the present invention.

FIG. 12 is an explanatory view showing another example of use of the head warmer of the present invention.

FIG. 13 is a perspective view of another embodiment of the head warmer of the present invention.

FIG. 14 is a perspective view of still another embodiment of the head warmer of the present invention.

FIG. 15 is a schematic diagram of a planar heater.

FIG. 16 is an explanatory diagram of a sheet-shaped image.

FIG. 17 is an explanatory diagram of the self-temperature control characteristic of the planar heater.

FIG. 18 is an explanatory diagram showing the relationship between the electric resistance value of the sheet heater and the current. FIG. 19 is an explanatory diagram of the power consumption characteristics of the planar heater.

FIG. 2OA is an explanatory view showing still another usage example of the head warmer of the present invention. FIG. 20B is a diagram schematically showing a deployed state of the head warmer shown in FIG. 2OA.

FIG. 20C is a front view of the temperature control means used in the head heater shown in FIG. 20A. It is.

FIG. 21 is an explanatory diagram showing still another usage example of the head warmer of the present invention.

FIG. 22 is a diagram showing another example used as a lower heater main body of the head heater shown in FIG. 21.

FIG. 23 and FIG. 21 are explanatory views showing still another example of use of the head warmer of the present invention.

FIG. 24A is a plan view showing another example of the head covering sheet used for the head warmer.

FIG. 24B is a plan view showing still another example of the head covering sheet used for the head warmer.

FIG. 24C is a cross-sectional view taken along the line 24 C- 24 C ′ in FIG. 24B. BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, an embodiment of a head heating device according to the present invention will be described with reference to the drawings. FIG. 1 shows a front view of the head warmer 2 of the present invention, FIG. 2 shows a rear view of the head warmer 2, FIG. 3 shows a right side view thereof, FIG. 4 shows a perspective view from below, and FIG. Fig. 5 shows a plan view.

As shown in these figures, the head heater 2 is provided with a heater main body 20 formed in a hood shape opening downward, and a peripheral edge of an opening on the lower side of the heater main body 20. And temperature control means 30 attached. The temperature control means 30 has a power supply circuit and a box housing the power supply circuit.

The heater body 20 is formed by bending a plate-like laminate 21 and connecting both ends thereof, and has a first opening 22 having a small area at an upper end, and a first opening 22 having a large area at a lower end. The first opening 22 on the upper side of a substantially cylindrical hood 24 having two openings 23 is covered with a head covering sheet 25.

As shown in FIG. 6, the laminated body 21 has an aluminum layer 6 as a metal reflective layer attached to the outside of the plate-shaped heat insulating material 5, and a film 7 attached to the inner surface of the heat insulating material 5. The film 7 is attached on the inner surface side of the film 7 and is formed. Here, a reflective layer composed of an aluminum layer 6 is used as a protective layer for protecting the heat insulating material from dirt and mechanical friction. Polymer layer instead of aluminum layer 6 A protective layer made of lum may be used. As the polymer film, for example, a polypropylene film (Lexan film 188 manufactured by General Electric Co., Ltd. or the like) can be suitably used. The polymer film is a material that is hardly stained or a material that is easily stained, and a flexible material can be widely used. It is desirable to select a combination of materials so that the thermal expansion coefficient of the heat insulating material 5 and the thermal expansion coefficient of the protective layer 6 and Z or the film 7 substantially match. If the coefficient of thermal expansion is significantly different, peeling at the adhesive surface and bending of the protective layer and / or film may occur.

The adhesion between the heat insulating material 5 and the aluminum layer (protective layer) 6 can be formed by sticking an aluminum foil using an ordinary adhesive, or by using vapor deposition lamination. The adhesive between the heat insulating material 5 and the film 7 on the inner surface can be made using an aqueous quick-drying adhesive or a solvent-based adhesive, for example, an SBR-based adhesive or an acrylic rubber-based adhesive can be used. . Spray types can also be used.

Alternatively, both sides of the heat insulating material 5 are previously subjected to adhesive processing, and first, an aluminum foil or a polymer film serving as the protective layer 6 is attached to one surface of the heat insulating material 5, and then the other surface of the heat insulating material 5 is bonded. It may be attached to the film 7. Until these bonding steps, both surfaces of the heat-insulating material 5 having been subjected to the adhesive processing may be protected with release paper.

Adhesion between the inner film 7 and the sheet heater 3 can be usually performed using a known adhesive or pressure-sensitive adhesive tape. For example, a double-sided pressure-sensitive adhesive tape can be used.

Since the heat insulating material 5 and the protective layer 6 and the film 7 and the sheet heater 3 are bonded to each other on a wide surface, even if the bonding strength per unit area is not so high, sufficient bonding strength as a whole is obtained. Therefore, it is possible to sufficiently adhere using an adhesive layer (adhesive processing or double-sided adhesive tape). In particular, heat-insulating materials that have been subjected to adhesive processing on both sides in advance can be mass-produced relatively easily, and thus are superior in productivity to those using adhesives.

In addition, as the heat insulating material 5, a polyurethane foam, a polyethylene foam, a polypropylene foam, or the like can be used. Examples of the film 7 include a polyethylene film, a polypropylene film, a polycarbonate film, A polyester film (eg, about 40 // m thick) or the like can be used. The planar heater 3 will be described later. The sheet heater 3 is attached to almost the entire surface of the film 7 to increase thermal efficiency.

The laminated body 21 constructed in this manner is cut into a substantially sector shape, and as shown in FIGS. 1 and 7, both ends 21 a are curved so as to overlap, and both ends are adhered to each other. A substantially cylindrical (frustoconical) hood 24 having a small-area first opening 22 at the upper end and a large-area second opening 23 at the lower end is formed. The lower edge of the front side of the hood 24 (in the direction of the face of the subject) is slightly inclined so that the front side is on the upper side as shown in FIG. 3, and the surface adhered to the inner surface of the hood 24 There is a portion 8 on the front side of the hood 24 where no heat 3 is attached so that heat from the heat 3 does not hit the face of the subject much. For example, the major axis of the substantially elliptical first opening is about 17.5 cm, the minor axis is about 14.5 cm, and the major axis of the substantially elliptical second opening 22 is about 34 cm, the minor axis Is about 3 lcm (both inside dimensions) (see Fig. 4).

The method of manufacturing the hood 24 will be described with reference to FIG. 8. As shown in FIG. 8A, the outer surface of a mold 28 (for example, a wooden mold or a resin mold) having the inner shape of the hood on the outer surface is illustrated. A film 7 is placed and temporarily fixed (Fig. 8 (b)), a bonding agent is applied to the outside of the film 7, and then an aluminum-shaped (protective layer) 6 is provided on the outer surface. The hood 24 is manufactured by pressing and sticking the inner surface of the material 5. (Fig. 8 (c)-(e)). When using a heat insulating material 5 that has been subjected to adhesive processing on both sides in advance, first, a protective layer 6 is formed by attaching an aluminum foil or a polymer film to one surface of the heat insulating material 5, and then, The other surface of the heat insulating material 5 may be attached to the film 7.

By manufacturing the hood 24 in this manner, the heat insulating material is bonded to the film 7 in a compressed state, so that the hood 24 is formed while having a shape along the outer surface of the mold 38. You. As a result, the inner film 7, the heat insulating material 5, and the aluminum layer (protective layer) 6 become a single body, and the strength of the single material is incomparably increased, so that the shape of the mold can be maintained.

The first opening 22 above the hood 24 is covered with a head covering sheet 25 to form a heater main body 20. The head covering sheet 25 has a circular shape as shown in FIG. A portion 25a and a plurality of locking portions 25b protruding at appropriate positions around the circular portion 25a, and the locking portion 25b is a film at the upper end of the hood 24. The head covering sheet 25 is attached to the hood 24 by penetrating the heat insulating material 5. The head covering sheet 25 is formed of, for example, a sheet made of a transparent resin such as a polychlorinated biphenyl sheet, so that the hair condition of the subject can be observed from above. A rubber end protection member 27 having a U-shaped cross section is attached to the upper end and the lower end of the hood 24.

Various connecting means can be adopted to connect both ends of the laminate 21. Instead of using an adhesive as described above, for example, a sheet fastener, a double-sided adhesive tape, a screw, a hook and a button may be used. The area of the hood 24 can be adjusted by changing the connection site of the laminate 21 by using a planar fastener, a plurality of continuous hooks, or the like.

The hood 24 formed by bending the laminated body 21 once in this manner keeps its shape strong.

On the rear side of the heating device body 20 (on the back of the subject's head), a patch 28 is fixed to the periphery of the second opening so as to sandwich the patch from both sides thereof. The means 30 is rotatably connected via a connecting member 29. The planar heater 3 is electrically connected to the temperature control means 30. The temperature control means 30 has a function of setting and controlling the temperature of the sheet heater 3. As shown in FIG. 10, on the front surface, there is a panel 31 for displaying a temperature and an alarm, an on / off switch 32, an operation unit 33 for setting a temperature, and the like. In the figure, reference numeral 34 denotes a cord connected to a power supply. Usually, the internal temperature of the head warmer 2 is adjusted to 30 to 75 ° (:, preferably 38 to 55 ° C, particularly preferably 40 to 50 ° C).

When the sheet heater 3 has a self-control characteristic as described later, the maximum temperature is controlled by the sheet heater 3, and the temperature control means 30 controls the temperature to be lower than the above-mentioned maximum temperature. Specifically, the power supply circuit in the temperature control means 30 supplies a preset power (current or voltage) to the sheet heater 3 according to a set temperature inputted by the user. If it is not necessary to control the temperature below the maximum temperature controlled by the self-control characteristic of the sheet heater 3, the temperature control function of the power supply circuit (temperature control Circuit) can be omitted.

Two arms 9 are fixed to the front side of the temperature control means 30. By mounting this arm 9 on the shoulder of the subject, the head heater 2 of the present invention can be supported by the shoulder. it can.

Since the temperature control means 30 is supported by the arm 9, the inside of the head warmer 2 does not come into contact with the head of the subject, so that the chemical solution (treatment, hair manicure, hair color) attached to the hair is removed. Does not adhere to the scalp.

The arm 9 is provided with an anti-slip member so as not to slip on the shoulder. For example, as shown in FIG. 3, a plurality of ring-shaped silicon rubbers 40 may be wound around the arm 9. As the used edge preventing member, for example, a rubber coating layer may be formed by immersing the distal end of the arm 9 in a rubber solution and then drying, or a rubber layer may be attached to the lower surface of the arm 9. Further, a large number of irregularities or projections may be provided on the lower surface of the arm 9. In this case, it is preferable to provide the arm 9 with a recess around which the silicone rubber 40 is wound. Next, the operation of the head warmer 2 of the present embodiment will be described.

As shown in Fig. 11, when the heater 2 is put over the head and the two arms 9 are placed on the shoulder of the subject, the head of the subject is placed in the inner space of the heater 2. Placed without touching. Then, the internal temperature is appropriately set in this state, and when the switch 32 of the temperature control means 30 is turned on, the head warmer 2 is heated while the internal temperature is maintained at the set temperature.

Here, since the head warmer 2 is substantially composed of the laminate 21 and the temperature control means 30, the total weight is very light, and the subject feels heavier. There is no. For example, its total weight can be less than 250 g.

Further, since the temperature control means 30 is provided behind the head warmer 2, the weight balance before and after the head warmer 2 can be taken with the base of the arm 9 as a fulcrum. In the stable state shown in FIG. 11, the head warmer 2 can be arranged above the head of the subject.

Infrared rays, particularly far-infrared rays, emitted from the planar heater 3 provided on the inner surface of the head warmer 2 can uniformly and directly warm hair. In addition, the fluctuations in the heat generation temperature of the planar heater 3 are much smaller than those of conventional PTC heaters, etc., and the thermal effect is stable. ing. Therefore, the hair and scalp of the subject are not hurt, the fixation of each chemical solution is not uniform, and the finished state is less likely to be uneven.

In addition, the heater can have a simple structure, does not require a thermostat for temperature control, and has an extremely simple electric circuit configuration, so it is lightweight, easy to handle, and inexpensive. It can be.

Further, as shown in FIG. 12, the head warmer 2 can be used by being attached to a predetermined stand 10 or the like. In this case, since the head heater 2 is lightweight, it can be used even with the stand 10 which is lighter than before. That is, in the past, the head warmer 2 was heavy, and therefore a head with a cascade was used in consideration of its movement, but in the head warmer 2 of the present invention. Is light as described above, it is possible to use a lightweight one such as an unnecessary microphone stand or the like for Cassie. Of course, a cascade may be provided as needed. When the head heater 2 is supported by the stand, it is preferable to make the hood of the head heater 2 larger than the above-mentioned shoulder-mounted type or head-mounted type. For example, the major axis of the substantially elliptical first opening is about 20 cm, the minor axis is about 16.5 cm, the major axis of the substantially elliptical second opening 22 is about 42 cm, and the minor axis is about It is 38 cm (both inside dimensions) (see Fig. 4). Next, another embodiment of the present invention will be described.

As shown in FIG. 13, a support piece 35 is attached to the lower surface of the head covering sheet 25 in a cross shape, and the support piece 35 holds the head warmer 2 above the subject's head. You may do so. In this case, the support piece 35 is formed of an elastic foam or the like. Also in this embodiment, since a certain distance is formed between the hair of the subject and the planar hair 3, the hair does not come into contact with the head warmer 2 and uniform heating of the hair is achieved. I can do it. Further, as shown in FIG. 14, a plurality of head support rods 41 may be provided vertically from the lower surface of the head covering sheet 25. In this case, a plurality of (for example, three, four, and five) head support rods 41 are provided, and since the lower end portion is in contact with the subject's head, the head support rod 41 is thin or thin. It is designed to be received over a large area at the top.

According to these configurations, since the weight of the head warmer 2 itself is lightweight, the lower end of the support piece 35 or the head support rod 41 does not come into contact with the scalp, so that the chemical solution adheres to the scalp. To prevent Next, a description will be given of the case 3 of the sheet.

Fig. 15 is a schematic diagram of the day 3 As shown in Fig. 15, this planar heater 3 has a very thin heating element 11 covered with insulating films 12 on both sides, and electrodes 13p, 1 3 n is provided. This heating element 11 is extremely thin, about 20 to 30 microns, light, and has excellent flexibility and bending resistance. It can be mounted on curved surfaces as well as flat surfaces, and can be processed into a wide area. . The heating element 11 emits far-infrared rays when energized, and the electrical resistance increases as the temperature increases. The details will be described later.

The electrodes 13 ρ and 13 η may be printed and affixed to the heating element 11 by using a conductive metal in a conventional manner. The insulating film 12 may cover the heating element 11 with a resin such as polyester having an insulating property to a thickness of about 40 to 120 microns. FIG. 16 is an enlarged schematic view of the heating element 11, wherein (Α) shows a state at normal temperature and (Β) shows a state at high temperature.

As shown in Figs. 16 (A) and (Β), the heating element 11 is composed of an insulating resin 17, a far-infrared radiation material 14 such as ceramic, a semiconductor resin 15, and graphite or carbon. Is kneaded with the conductive resin 16 to form a sheet. The semiconductor resin 15 and the conductive resin 16 generate heat when supplied with electricity, and the far-red radiating material 14 emits far-infrared rays when heated.

By the way, by keeping two conductors very close and applying a voltage to these two conductors, even if an insulator is interposed between the two conductors, the two conductors The dielectric phenomenon that electricity flows between them is known. Of course, if the two conductors are far enough apart, electricity will not be conducted between the two conductors due to the insulator.

As shown in Fig. 16 (Α), at room temperature, the insulating resin 17 intervenes between the semiconductor resin 15 of the heating element 11 and the conductive resin 16 but the semiconductor resin 15 The conductive resin 16 is very close and forms a chain between the electrodes 13 ρ and 13 η. Therefore, when electricity is supplied to the heating element 11 between the electrodes 13 ρ and 13 η, electricity flows through a chain of the semiconductor resin 15 and the conductive resin 16 due to the dielectric phenomenon. This energization causes the semiconductor resin 15 and the conductive resin 16 to generate heat. Emit infrared light.

As shown in FIG. 16 (B), when the temperature of the heating element 11 increases, the heating element 11 expands thermally and the volume of the heating element 11 increases. Since the semiconductor resin 15 and the conductive resin 16 are filled with the insulating resin 17 around them, when the heating element 11 thermally expands, the conductive resin 16 and the semiconductor resin 16 are compared with those at normal temperature. The gap between the electrodes 13p and 13n is widened, and it becomes difficult for electricity to flow in the chain between the semiconductor resin 15 and the conductive resin 16 of the heating element 11 between the electrodes 13p and 13n. In other words, since the gap between the semiconductor resin 15 and the conductive resin 16 as the conductor is widened, the dielectric state due to the tunnel phenomenon is restricted, and the chain between the semiconductor resin 15 and the conductive resin 16 is reduced. The amount of current flowing decreases.

As described above, as the temperature of the heating element 11 decreases, a current easily flows through the heating element 11 and the heating element 11 easily generates heat. On the other hand, as the temperature of the heating element 11 increases, heat generation occurs. The current hardly flows through the body 11 and the heating element 11 hardly generates heat. Therefore, if the heating element 11 is energized and the heating element 11 rises to a certain temperature, or if the heating element 11 drops to a certain electric resistance value, it passes through the heating element 11 The amount of current and the amount of heat generated by the heating element 11 are balanced, and the temperature of the heating element 11 is maintained.

The maximum temperature of the heating element 11 is mainly determined by the resistance value of the semiconductor resin 15 and the electric resistance value between the electrodes 13p and 13n, and the volume expansion rate of the insulating resin 17 Therefore, the upper limit of the temperature of the heating element 11 can be set by changing these values. In addition, since the heating value of the heating element 11 is determined by the density of the semiconductor resin 15 and the density of the conductive resin 16 per unit area, the ratio of the amount of the semiconductor resin 15 to the insulating resin 17 is The amount of heat generated by the heating element 11 can be set by increasing or decreasing the value.

Also, unlike the conventional heating elements such as nichrome wire, carbon fiber, and aluminum wire, the heating element 11 does not exceed the set upper limit temperature and does not become hot, and there is a danger due to disconnection or short-circuit and poor current. Because of this, it is possible to maintain stable and stable operation even when driving for a long time.

The temperature of Nichrome wire heaters, power heaters, ripon heaters, etc. is controlled by a thermostat, etc., so some of the temperature rises, and materials with a softening temperature of 60 to 70 ° C, such as polyethylene foam, are used. Then it is difficult to control. In particular, Nichrome It is considered that the line heater cannot be used because the line itself becomes hot.

On the other hand, in the present invention, the use of the sheet-shaped surface allows the self-control function to work, so that even a material having a softening temperature of 60 to 70 ° C such as foamed polyethylene can be controlled. it can.

FIG. 17 is an explanatory diagram of the self-temperature control characteristics of the planar heater 3, wherein the vertical axis is temperature, the horizontal axis is elapsed time, and F is a characteristic curve of the planar heater 3. FIG. 18 is a schematic diagram of the self-temperature control characteristics of the planar heater 3 and a temperature graph, in which the vertical axis represents the temperature value, (A) without a temperature difference, and (B) with a temperature difference. It is.

As shown by the one-dot chain line in Fig. 17, S is the characteristic curve of the thermostat-controlled heater. The thermostat-controlled heater repeats a large temperature fluctuation.

On the other hand, as indicated by the symbol F in FIG. 17, the temperature of the sheet heater 3 of the present embodiment rapidly rises to the set upper limit temperature of the sheet heater 3 in about 10 minutes after energization. After that, the temperature did not rise any more and was maintained at a constant temperature.

As shown by the symbol t0 in Fig. 18 (A), if the surface of the sheet heater 3 has a uniform temperature, the same electric resistance value is shown in any local area of the sheet heater 3. The same current I is supplied. If any local D of the planar heater 3 becomes hotter than its surroundings, the electric resistance of the local D increases as shown by the symbol t1 in Fig. 18 (B), and it becomes difficult for current to flow to the local D. However, the heat generation at local D is suppressed, and the temperature does not rise any more. Conversely, if any local D in the planar area 3 becomes cooler than its surroundings, the electrical resistance value of the local D becomes smaller and current flows more easily in the local D, and the heat generated in the local D is accelerated and the temperature decreases. To rise. In other words, the planar heater 3 has a self-temperature control characteristic, and feedback acts on a change in temperature.

As described above, since the planar heater 3 has a self-temperature control characteristic, by using the planar heater 3, the temperature inside the container 1 can be kept constant without attaching a temperature controller. In addition, the variation can be kept small.

Next, the power consumption of heater 3 will be described.

FIG. 19 is an explanatory diagram of the power consumption characteristics of the planar heater 3, where Ft is the temperature curve of the planar heater 3, the vertical axis is the temperature difference, the horizontal axis is the elapsed time, and Fw is the surface. Heart-shaped evening 3 The power consumption curve is plotted on the vertical axis, and the horizontal axis is the elapsed time. As indicated by Ft in FIG. 18, the power consumption of the planar heater 3 decreases as the temperature of the planar heater 3 increases. When the temperature of the sheet heater 3 reaches the upper limit temperature set for the sheet heater 3, the temperature of the sheet heater 3 does not rise any more and maintains a constant temperature. During the period when the temperature of the planar heater 3 is constant, the power consumption of the planar heater 3 is also maintained at a constant value with a low value. For this reason, there is an effect that power consumption can be greatly reduced without dissipating unnecessary heat without installing a temperature controller.

The laminate having the above configuration has cushioning properties and heat insulation properties, and has good shape retention, so that it can be used for various applications. For example, it can be used as a protective cover for parts that are susceptible to injury or impact on the human body, a medical pad, a heat insulating sheet for medical use, and a thermostatic container for manufacturing foods such as natto and bread. Furthermore, by providing a planar heater, it can be used as a heater of various shapes.

Next, an embodiment of a head heater for a long hair using a planar heater will be described. Since the hair warmer according to the present invention uses the above-described planar heater 3 as a heat source, it is possible to uniformly heat a large area. Therefore, the present invention is suitably applied to, for example, a head warmer for heating long hair extending from the head to the waist.

An example of the head heating device 2 for a long hair is shown in FIG. 2OA. Fig. 2 The head heating device 2 shown in the OA has the hair to be heated not only from the head but also from the back to the waist. Is referred to as the hair warming device, and the part of the head where the hair is to be heated is the upper warmer body 20a, and the hair below the shoulder other than the head is the object to be heated. These parts are referred to as the lower heater body 20b, respectively.

The upper warmer body 20a of the hair warmer 2 shown in FIG. 20A is substantially the same as the warmer body 20 shown in FIG. The lower heater body is composed of a laminate in which a protective layer is provided on the outer surface of the heat insulating material, a film is attached to the inner surface of the heat insulating material, and a planar heater is attached to the inner surface of the film. It forms a concave surface that substantially surrounds the hair below the shoulder of the subject. The lower heater main body 2 Ob has substantially the same configuration as the upper heater main body 20a, and there is a difference in the existence form of the hair to be heated. Has an outer shape corresponding to The lower heater main body 2 Ob has a shape that covers the hair from the outside. From the viewpoint of heating efficiency, the lower heater main body 2 Ob preferably has a concave surface so as to substantially surround the hair. The concave surface is a closed curved surface and may form a cylinder or may have an opening. The length of the lower heater body 20b is set as appropriate. Normally, heating is performed while the subject is sitting, so it is sufficient to reach the hips of the subject.

The upper heater main body and the lower heater main body 2 Ob may be formed integrally as shown in FIG. 2OA and FIG. 20B. As described above, the heating element 11 of the sheet heater 3 is formed by printing a material obtained by kneading a far-infrared radiation material, a semiconductor resin, and a conductive resin into an insulating resin. Therefore, when the upper heater main body 20a and the lower heater main body 20b are integrally formed, the heating elements of the upper heater main body 20a and the lower heater main body 20b are formed. 11a and 11b can be formed in one printing step. Also, the electrodes 3a, 3b and 3c for supplying power to the planar heater 3 can be formed by one printing using a conductive paste (for example, silver paste). The electrodes 3a, 3b and 3c have a comb shape, and the comb-shaped electrodes 3a and 3b, 3b and 3c are arranged so as to mesh with each other, and a plurality of stripes are provided between each electrode. Heating elements 11 a and 11 b are arranged.

Terminal electrodes 13p and 13n are formed on the comb-shaped electrodes 3a, 3b and 3c, respectively, and predetermined power is supplied from a power supply circuit. In the illustrated example, a positive voltage supplied from the terminal electrode 13 p via the comb-shaped electrode 3 a to the plurality of striped heating elements 11 a of the upper heater body 20 a and a terminal The negative voltage supplied from the electrode 13 n through the comb-shaped electrode 3 b is applied. In addition, the plurality of striped heating elements 11 b of the lower heater body 20 b are connected to a positive voltage supplied from the terminal electrode 13 p via the comb-shaped electrode 3 c and a terminal electrode 13 n , A negative voltage supplied through the comb-shaped electrode 3b is applied. The terminal electrode 13n and the electrode 3b function as electrodes for applying a voltage to both the heating elements 11a and 11b. An AC voltage or a DC voltage is applied to the terminal electrodes 13 p and 13 n so that polarities opposite to each other are applied.

Note that the heating elements 11a and 11b may be formed using different materials. Upper part When the heating temperature of the heater main body 20a and the lower heating body 20b is set to be different from each other, the heating element 1 has a self-control characteristic to obtain a predetermined heating temperature. What is necessary is just to change the material (composition) of 1a and 11b. When the heating elements 11a and 11b are formed using different materials in this manner, two printing steps are required. For example, the temperature control means 30a shown in FIG. 20C can be used for the head heater 2 shown in FIGS. 20A and 20B. The temperature control means 30a shown in FIG. 20C houses a power supply circuit including a temperature control circuit inside a box. On the front of the box, there is a panel 31 a that displays the temperature and alarm, and an on / off switch 32, a heating start switch 32 a, and an operation unit that sets the heating temperature and heating time There are 3 3 mag. For example, when the start switch 32a is pressed once, power is supplied to the upper heater body 20a, and when the start switch 32a is pressed twice, power is subsequently supplied to the lower heater body 20b. Is set to be supplied. The maximum heating temperature is controlled by the self-control characteristic of the heating element of the planar heater. The temperature control circuit changes the power supplied to the planar heater according to the set value input by the user. In the example shown in the figure, the temperature can be set in five levels, one for the top and one for the bottom. If the maximum heating temperature specified by the self-control characteristic of the planar heater is, for example, about 70 ° C, by reducing the supplied power, for example, the heating temperature can be reduced to about 65 ° C, about 5 ° C. It can be controlled at 5 ° C, about 50 ° C and about 45 ° C. The relationship between the heating temperature and the supplied power (current or voltage) may be set in advance based on the relationship obtained by measurement in advance. In the above example, one temperature control means 30a is used to supply power to both the upper heater body 20a and the lower heater body 20b. For example, the control means 30 shown in FIG. 10 may be provided for each of 0 a and the lower heater body 20 b.

As shown in FIG. 2OA, the hair warmer 2 can be heated with a long hair extended. Therefore, the following effects are obtained.

With the conventional hair warmer using Nichrome Higashi, it was difficult to uniformly heat a large area, so it was difficult to expand the heating range. The result is that the conventional hair warmer could only heat the hair present in the head, so it was necessary to combine the hair on the head to heat the long hair. Put the long hair on your head When stopped, the unevenness of the temperature distribution in the hair became even larger, and there was a problem that efficient heating could not be performed. In particular, when it is necessary to heat the hair with the chemicals extended, as in the case of a straight perm, the hair was heated with a hair dryer because there was no conventional suitable hair heater. According to the present invention, by providing the above-described lower heater body 20b, it is possible to heat while the long hair is extended, so that the above-described problem can be solved. Because it can be heated uniformly and efficiently, it can be applied to straight perms and improves the finish of hair manicure.

Shows another example yer for hair heating device ₂丄to Long. The hair heater 2 shown in FIG. 21 has an upper heater body 20a and a lower heater body 20b independent of the upper heater body 20a. The lower heater main body 20b is arranged so as to wrap the hair from the back side of the subject. The lower heater main body 2 Ob does not need to completely surround the hair, and may have an opening. Also, as shown in the lower heater body 20c shown in FIG. 22, the opening formed by the planar heater 3 may be covered with a sheet-like heat insulating material 52 such as cloth or a vinyl sheet. ^ These configurations can be changed as appropriate in consideration of the target temperature for heating. As shown in FIG. 22, by providing a sheet-like heat insulating material 52 that covers the opening formed by the sheet heat sink 3 or by changing the area covered by the sheet-like heat insulating material 52. The heating efficiency and temperature can be easily adjusted. Further, as shown in FIG. 23, the lower heater main body 22 c may be formed in a sheet shape, and the hair may be heated from the back side of the subject. The sheet-like lower heater body 22c may be fixed to the subject using a fixing member such as a string or tape. When the above-mentioned lower heater main body is formed independently of the upper heater main body, only the lower heater main body can be used.

The heating temperature can be adjusted by changing the area of the upper heater body and the opening of the Z or lower heater body. For the upper heater body, the area of the opening at the lower end may be changed, and as shown in FIG. 24A, an opening is provided in the head covering sheet 25 of the upper heater, and the opening is provided. It may be adjusted by changing the opening area of the opening. For example, a groove member 56 is provided in the head covering sheet 25, and a plate-like shirt member 54 having an opening 54a that is the same as the opening is inserted into the groove formed by the groove member 56. Overlap of the opening 54 of the shirt member 54 and the opening of the head covering sheet 25 By changing the area, the opening area can be adjusted. FIG. 24A shows a state in which the opening 54 a of the shirt member 54 and the opening of the head covering sheet 25 are aligned (fully opened state).

Other examples of the head covering sheet are shown in FIGS. 24B and 24C. The head covering sheet 60 has a truncated cone shape and is disposed so as to cover the first opening 22 (see, for example, FIG. 7) on the upper side of the hood 24 formed in a substantially cylindrical shape. . The head covering sheet 60 has a plurality of openings 60a. A disk-shaped shirt member 64 is fixed to the head covering sheet 60 by a support knob 62 so as to be rotatable. The disc-shaped shirt member 64 has a plurality of openings 64a that are the same as the openings 60a, and the opening area can be adjusted by changing the area that overlaps with the openings 60a. Industrial applicability

According to the present invention, a protective layer (for example, a reflective layer) is provided on an outer surface of a plate-shaped heat insulating material, a film is stuck on an inner surface of the heat insulating material, and a sheet heater is stuck on an inner surface side of the film. A hood with a downward opening is formed by bending the laminated body, and the temperature control means is connected in the evening, so that the configuration of the heater body is extremely simple with a four-layer structure. In addition, the shape of the heater can be maintained by sandwiching the heat insulating material between the metal reflective layer and the inner film. Therefore, unlike the heater disclosed in Japanese Patent Application Laid-Open No. 9-129464, there is no need to attach a resin layer, a heat insulating material, a planar heater, etc. to the hood main body, and the head has a simple structure. You can get a partial heater.

In addition, the use of the sheet-shaped heater enables the self-temperature control function to control the temperature, so that materials with a softening temperature of 60 to 70 ° C, such as foamed polyethylene, can be used as heat insulating material. Therefore, the weight of the head heater can be reduced.

As described above, according to the present invention, it is possible to reduce the manufacturing cost of the head warmer, to reduce the weight, and to have no burden even if the subject himself holds the head warmer. You will be able to use a lightweight stand. Therefore, it is possible to efficiently and safely perform hair beauty at home as well as at beauty hospitals.

Claims

The scope of the claims

1. A laminated body in which a protective layer is provided on the outer surface of a plate-shaped heat insulating material, a film is adhered to the inner surface of the heat insulating material, and a sheet heater is adhered to the inner surface of the film. An inner surface defining a concave surface that substantially surrounds at least a part of the hair of the subject; and a power supply circuit electrically connected to the planar heater.

, Ho

2. The heater main body includes a substantially cylindrical hood having a first opening having a small area at an upper end and a second opening having a large area at a lower end, and a first opening of the hood. The hair warming device according to claim 1, comprising: a head covering sheet to be covered with the hair.

3. The hair warmer according to claim 2, further comprising a box housing the power supply circuit, wherein the box is provided with an arm for supporting the heater main body with a shoulder of a subject. .

4. The heating device main body includes an upper heating device main body whose inner surface substantially surrounds the head of the user, and a lower heating device whose inner surface substantially surrounds hair present below the shoulder of the user. The hair warming device according to claim 1, further comprising a container main body.

5. The hair heater according to claim 4, wherein the power supply circuit supplies power independently to the sheet heater of the upper heater body and the sheet heater of the lower heater body.

6. The hair warming device according to any one of claims 1 to 5, wherein the power supply circuit supplies a preset power to the sheet-shaped light overnight according to an input temperature.

7. The hair warmer according to any one of claims 1 to 6, wherein the protective layer is a reflective layer.

8. The hair warmer according to any one of claims 1 to 7, wherein the head covering sheet is formed of a transparent resin.

9. A laminate having a plate-like heat insulating material, a protective layer provided on an outer surface of the heat insulating material, and a film attached to an inner surface of the heat insulating material,

The laminate is formed by arranging the film on the outer surface of a mold, bonding the inner surface of a plate-shaped heat insulating material provided with a protective layer on the outer surface to the outer surface of the film via an adhesive, A laminate having at least a curved surface along an outer surface of the mold.

10. The laminate according to claim 9, wherein the film further has a planar heater.