JPH0748165Y2 - Hair Carla - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hair curler which, for example, curls hair by applying heat.

[0002]

2. Description of the Related Art Conventionally, as a method for heating a hair curler as described above, a hair-cylinder having a substantially cylindrical shape having a heat storage substance therein is indirectly heated by a heating rod heated by an electric heater or steam. There is known a method of heating the same, a method of incorporating a heating element such as a nichrome wire into the hair-rolling drum, and heating with the heating element controlled by a thermostat or the like.

However, the hair curler using the above heating method has problems in temperature control, usability and the like. That is, in the method of 5, the heating preparation time is 5
It takes a long time from 15 minutes to 15 minutes, and especially when steam is used, it is inconvenient to handle such as water supply operation. Furthermore, heating of steam or a heating rod is indirect because heating of them is indirect. The heat loss is large and a large heat capacity is required. On the other hand, in the method of (1), the heat loss is reduced as compared with the method of (1) because of the direct heating,
When the temperature control of the thermostat or the like is out of order, an overheating accident may occur.

Therefore, as an example of a hair curler that avoids the above-mentioned problems, a hair curler that directly heats a built-in heater (hereinafter referred to as a PTC heater) composed of a positive temperature coefficient thermistor having a self-temperature control function (Japanese Patent Application Laid-Open No. 2000-242242) Sho 54-3
No. 6863) is disclosed. In this hair curler, as shown in FIG. 4, the hair winding drum 2 made of synthetic resin is used.
1 has a substantially H-shaped vertical cross section and is formed in a hollow cylindrical shape, and a ring-shaped PTC heater 23 is coaxially embedded in a web 22 located at the center in the longitudinal direction of the hair winding drum 21. Has been done. Further, in this hair curler, upper and lower metal cylinders 24 and 25 each having a bottomed cylindrical shape are respectively attached to the bottoms 2 thereof.
The PTC heater 23 is sandwiched between 6 and 27 and provided coaxially inside the hair winding cylinder 21.

A terminal 28 electrically connected to the PTC heater 23 is coaxially arranged in the lower metal cylinder 25 in the bottom portion 2 thereof.
It is provided so as to project from 7. This terminal 28
Is configured by covering the outer periphery of the rod-shaped first terminal 29 with the cylindrical second terminal 31 via the insulator 30, leaving both ends thereof, and connecting the connection flange 32 at the rear end of the second terminal 31. The PTC heater 2 is brought into contact with the bottom portion 27 of the lower metal cylinder 25 and the first terminal 29 is also penetrated into the bottom portion 26 of the upper metal cylinder 24 so as to pass through the upper and lower metal cylinders 24 and 25, respectively.
3 are electrically connected to the respective electrode surfaces provided on both surfaces.

In such a hair curler, as shown in FIG. 5, the hair curler 21 is used by inserting it into a socket 33 provided in a holder 34. At this time, socket 3
P from the plug in 3 via the terminal 28 shown in FIG.
The heat generated by supplying electricity to the TC heater 23 is transferred to the entire hair winding cylinder 21 by the upper and lower metal cylinders 24 and 25,
The hair winding cylinder 21 stores heat. After that, the hair curler is picked up, the hair is wrapped around the outer circumference of the hair winding drum 21, and heat is applied to the hair to give a desired curl or the like.

[0007]

However, in the above structure, a relay device such as a holder 34 for connecting to a household power source is required to supply electricity to the PTC heater 23 to generate heat. For this reason, when carrying the hair curler during traveling, it is necessary to carry the above-mentioned relay device together, and the relay device is bulky, which makes it inconvenient to carry.

[0008]

Means for Solving the Problems The present invention hair curler, in order to solve the above problems, in the hair winding drum for winding the hair, of a heating means comprising a positive temperature coefficient thermistor and <br/> internal The cylinder is provided so as to be movable in the axial direction, and
In order to supply power to the heating element, one axial end of the inner cylinder of
It has a plug that can be connected to a household power source .

[0009]

According to the above construction , the power is supplied to the heating element.
Of, the plug that can be connected to the household power supply, to the hair winding body
Since the retractable, in the travel or the like, put a plug in the household power supply, which is usually provided in the accommodation connection Te
The above hair curler can be used by simply doing .

Therefore, a relay device such as a holder which has conventionally been required to supply electricity to a hair curler
Need no longer, in a portable hair curler in the travel or the like, inconvenience mobile is to have occurred prior that the need for bulky relay device is avoided.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The following will describe one embodiment of the present invention with reference to FIGS. In the hair curler, as shown in FIG. 1, the hair winding cylinder 1 is formed into a substantially cylindrical shape having openings 1c at both ends, and in order to facilitate winding of hair or the like on the outer peripheral surface of the hair winding cylinder 1. A plurality of substantially conical small protrusions 1a are formed radially outward at a predetermined interval. Further, inside the hair winding cylinder 1, there is provided a substantially cylindrical inner cylinder 3 which is fitted to the inner peripheral surface of the hair winding cylinder 1 and is movable in the axial direction.

In order to prevent the inner cylinder 3 from moving more than necessary, a plurality of sliding grooves 1b are formed axially in parallel with each other on the inner peripheral surface of the central portion of the hair winding drum 1, while the inner cylinder 3
On the outer peripheral surface thereof, there are axially formed sliding projections 3a which fit into the sliding grooves 1b. Such a hair winding cylinder 1 and the inner cylinder 3 are made of a synthetic resin excellent in light weight, heat resistance, moldability and heat storage.

On the plug mounting surface 3b, which is one of the flat surfaces of the inner cylinder 3, two plate-shaped terminals, that is, a household power source, are arranged parallel to each other and face each other at a predetermined interval. A plug 2 that can be connected to a household outlet is erected in the axial direction. Therefore, the plug 2 is attached to and retracted from the hair winding body 1.

That is, the inner cylinder 3 is moved in the axial direction within the hair winding drum 1, and the plug mounting surface 3b is replaced by the plug mounting surface 3b.
When the plug 2 is moved away from the opening 1c on the b side, the plug 2 is retracted from the opening 1c into the hair winding drum 1 and is housed in the hair winding drum 1. Conversely, as shown in FIG. 2, the plug is installed. When the surface 3b approaches the opening 1c, the plug 2 emerges from the opening 1c.

As shown in FIG. 3, a plate-shaped PTC heater 5 made of a positive temperature coefficient thermistor is coaxially built in the inner cylinder 3, and both sides of the PTC heater 5 are silver. Etc. are baked to form the heater electrodes 5a, respectively. In addition, the metal plate 4 abutting on each heater electrode 5a
Are provided, one end of each metal plate 4 is connected to each terminal of the corresponding plug 2, and the other end of each metal plate 4 is not contacted with each other. It is formed so as to extend from the contact surface of the electrodes 5a, 5a and contact along the inner peripheral surface of the inner cylinder 3.

Therefore, by each metal plate 4, 4, P
While the TC heater 5 is fixed at a predetermined position in the inner cylinder 3, electricity from the plug 2 can be supplied to each heater electrode 5a, 5a through each metal plate 4, 4 while the PTC heater 5 is used.
The heat generated in 2 can be efficiently transmitted to the inner cylinder 3 through the metal plates 4, 4.

Next, the PTC heater 5 will be described.
This PTC heater 5 has a positive temperature coefficient (Positive Tempera
, which is a ceramic semiconductor whose main material is barium titanate, has a low resistance from room temperature to the Curie temperature Tc (rapid change temperature), but when the Curie temperature Tc is exceeded, the resistance value sharply increases. It is a positive temperature coefficient thermistor as a heat-sensitive element having increasing characteristics.

With this characteristic, when a voltage is applied to the PTC heater 5, the resistance is initially low, so that the initial power consumption is large and the temperature rises rapidly, and when the temperature exceeds the Curie temperature, the resistance value sharply increases. This significantly reduces power consumption. As a result, the PTC heater 5 does not rise above a certain temperature and maintains a stable temperature, and has a self-temperature control function. The Curie temperature Tc of the PTC heater 5 is about 30 depending on the material composition.
The temperature can be set arbitrarily within a range of up to 250 ° C., and in the PTC heater 5 in the above-described embodiment, the Curie temperature Tc is taken into consideration in consideration of adverse effects on the hair due to temperature, easiness of curling of the hair, and the like.
Is set.

Next, a method of using the above hair curler will be described. In the hair curler, as shown in FIG. 1, the plug 2 is normally housed in the hair curling body 1 and is not visible from the outside. Therefore, when heating the hair curler, first press the inner cylinder 3 in the hair winding drum 1 with a finger or the like to take out the plug 2 from the hair winding drum 1 as shown in FIG. Plug 2 into a household outlet.

After that, as shown in FIG. 3, the PTC heater 5 is heated to a predetermined temperature quickly, and the heat generated in the PTC heater 5 is passed through the metal plate 4 and the inner cylinder 3 as shown in FIG. The hair wrapping body 1 shown in (1) is quickly transmitted to the hair wrapping body 1 to store heat, and the hair wrapping body 1 is heated to a predetermined temperature. Then, the plug 2 of the hair curler is removed from the outlet, and the inner cylinder 3 is housed in the hair winding drum 1 as shown in FIG. Next, the hair is wrapped around the thus-heated hair winding cylinder 1, and heat is applied to the hair to give a desired curl or the like to the hair.

In the hair curler having the above-mentioned structure, the plug 2 which can be connected to the household power source is provided so as to be retractable from the hollow portion of the hair winding drum 1. Can be used by heating the hair curler by exposing the plug 2 to the outlet, which is a household power supply normally provided, and connecting it.

Therefore, since a relay device such as a holder, which has been conventionally required for supplying electricity, can be housed in the hair curler, the bulky relay device conventionally required is not required, and simplification can be achieved. In addition, the above-mentioned inconvenience that has been conventionally caused by having to carry a bulky relay device separately when carrying a hair curler while traveling is avoided.

Further, in the above structure, since the PTC heater 5 has a self-temperature control function, a temperature controller such as a thermostat is not necessary, and the reliability of temperature control is improved because there is no mechanical temperature control mechanism. It can be made compact and lightweight. Furthermore, since the PTC heater 5 is built in the hair winding drum 1, the heat from the PTC heater 5 can be transferred to the hair winding drum 1 without waste, so that the hair curler can save power.

In addition, in the conventional hair curler, the electrical connection was made by using one connector terminal, and therefore, if the hair curler is mounted at a slight angle, a large force is easily applied to the fixed end portion of the connector terminal. , The fixed end of the connector terminal was loosened, or the connector terminal was broken, and it was easy to break down.

However, in the above-mentioned structure, since the electrical connection is made by the surface contact by the two plugs 2 which are plate-shaped terminals, an unreasonable force to the connection terminals as in the conventional case is applied. It is dispersedly added to the plugs 2 used as terminals. Therefore, it is possible to reduce failures due to connection failure due to loosening of the connection terminal as in the related art.

On the other hand, in the above structure, since the conventional relay device and the terminal of the hair curler are shared by the plug 2, the number of contacts for electrical connection is reduced compared to the conventional case.
As a result, the number of electrical contacts that are liable to cause a failure in the related art is reduced, and the failure due to the contact failure is also reduced. As a result of the above, the above-described structure is a hair curler with fewer failures than ever before.

In the above construction, the hair winding drum 1 is formed in a substantially cylindrical shape, but it may be another cylindrical shape, for example, a substantially hexagonal cylindrical shape.

[0028]

[Effect of the invention The present invention hair curler is moved, as described above, in the hair winding drum for winding the hair, inner tube with a built-in heating means comprising a positive temperature coefficient thermistor is axially
It is possible to provide, and at the one axial end of this inner cylinder,
Can be connected to a household power source to power the heating element
It is a configuration provided with a plug .

Therefore, a relay device such as a holder, which has been conventionally required to supply electricity, has a hair structure in the above structure.
Since it accommodated inside Kara, the portable hair curler in such when traveling, an effect that can be avoided portable also inconvenience that occurs prior in that apart from the need for bulky relay device.

[Brief description of drawings]

FIG. 1 is a sectional view of a hair curler of the present invention.

FIG. 2 is a cross-sectional view of the hair curler showing a state in which the plug of the hair curler is protruding from the hair winding drum.

FIG. 3 is a sectional view of an inner cylinder of the hair curler.

FIG. 4 is a sectional view of a main part of a conventional hair curler.

FIG. 5 is a perspective view of a hair curler and a holder for heating by energizing the hair curler, showing a method of using the hair curler.

[Explanation of symbols]

 1 Hair curler 2 Plug 5 PTC heater (heating means)

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-54-36862 (JP, A) JP-A-54-36863 (JP, A) JP-A-53-108552 (JP, A) JP-A-54- 92864 (JP, A)

Claims (1)

[Scope of utility model registration request] To 1. A within the hair curling body for winding the hair, inner tube with a built-in heating means comprising a PTC thermistor axial direction
Is provided so as to be movable in one direction, and one end in the axial direction of this inner cylinder
The part is connected to a household power source for supplying power to the heating element.
Hair curler, wherein the connection can plug is al provided.