JPS6348527B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to improving the performance of a hair dryer whose main purpose is to set hair, and aims to improve the styling performance by using a combination of hot air and a heating rod as a hair heating means. It's there.

In particular, the present invention effectively utilizes the entire length of the heating rod, which heats the hair from the inner side, by increasing its temperature rise characteristics and also using hot air as a means to compensate for the temperature drop on the base side of the heating rod. This provides a structure that allows for customization.

[Conventional Example] For example, Japanese Patent Application Laid-open No. 103161/1983 has proposed a hair curling device that heats hair wound around a curler body from both the inside and outside of the curler body. This product has a hollow curling rod that wraps around the hair, and a part of the hot air from a hot air source installed on the main body is deflected and guided into the curling rod, and is blown out from a discharge hole in the rod. The rod and hair are heated from the inside, and the rest of the hot air is exhausted from the exhaust hole opened at the front of the main body toward the hair to heat it from the outside.

However, when heating a rod, hot air enters from one end close to the main body, so the rod temperature decreases toward the other end farther from the main body, making it difficult to raise the temperature of the hair over its entire length.

[Problem that the invention seeks to solve]

As a countermeasure against this problem, for example, a structure in which a heating means is directly installed inside the rod (Japanese Utility Model Publication No. 45-4672) can be used.

However, this type of heating element uses a positive resistance temperature characteristic heating element, and since this type of heating element is generally button-shaped, it heats the rod locally, and the number of heating elements is required to uniformly heat the entire length. There are issues that need to be resolved in terms of price and mounting structure.

[Means for Solving the Problems] This invention has been made in view of these circumstances, and it is a metal device in which a hot air generator and a hot air outlet are arranged on the axis, and a heating element is built into the hot air outlet. In a hair dryer, a heating rod is attached, and a curler body is removably attached to the outer surface of the heating rod,
A heating rod in which a positive resistance temperature characteristic heating element is used as a heating element in the heating rod, and the mounting base of the metal heating rod is disposed in a hot air passage between a hot air generator and a hot air outlet. The curler body, which is fixed to the center of the fixed piece and has brushes formed on the circumference, is attached to the heating rod, and the hot air outlet is positioned outside the outer peripheral surface of the curler.

[Effect]

According to the configuration according to the present invention, by mounting the positive resistance temperature characteristic heating element inside the heating rod, the entire length of the heating rod, that is, the entire wrapped hair can be heated evenly from the inside.

Moreover, the mounting base of the heating rod is fixed to the center of the heating rod fixing piece disposed in the hot air passage between the hot air generator and the hot air outlet, so that hot air can be used to move the heating rod from the mounting base. In addition to suppressing the heat dissipation phenomenon, it is also possible to heat the heating rod in addition to the heat generated by itself, increasing the temperature rise of the heating rod and maintaining the temperature over its entire length.

In addition, since the heating element inside the heating rod uses a positive resistance temperature characteristic heating element, even if the temperature of the heating rod itself rises excessively due to hot air depending on the amount of hair, the heating rod itself Since it is self-controlled, it also has the effect of suppressing excessive heating due to the amount of hair.

In this way, it is possible to heat the hair from both the inner side using the heating rod and the outer side using the hot air, thereby improving the curling performance.

〔Example〕

The details of the invention will be explained below using one example.

Reference numeral 1 denotes a main body case, which is divided into left and right halves, 1a and 1b, and has a cylindrical shape. 2 is a suction port formed at the rear end of the main body case, and 3 is a blowout port formed at the tip. Main case 1
Inside, a hot air generator is arranged on the axis.
4 is a DC motor, and a fan 5 is fixed to the output shaft. 6 is a cylindrical rectifier blade with an electric motor 4 at the bottom 64.
One end surface of is fixed with a screw 12. Furthermore, guide vanes 7 are formed radially on the inner periphery of the straightening vanes. A gap 65 is provided between the tip of the guide vane 7 and the outer periphery of the electric motor 4, and a vibration isolating ring 8 made of an elastic body is fitted therein. Reference numeral 24 denotes a groove formed in the main body case 1a, and a lead wire 11 from a power source is accommodated in the base groove, and a convex rib 25 formed in the other main body case 1b is fitted. A rotating plug 9 relays power from the outside to the inside via the rotating mechanism 10. Reference numeral 13 denotes a heating rod fixing piece having a cylindrical shape and disposed in the hot air passage 70 between the hot air generator and the outlet 3 at the tip of the main body case 1.
At the center of this is a mounting base 14a of the heating rod 14.
The bulging hole 1b and the flange portion 14 at the rear end opening portion
It is fixed by caulking with c, and a ventilation hole 15 is formed around it. Also, the mounting base 14
A cap 16 having a conical head is press-fitted into the rear end of the cap 16 to seal it. The cap 16 has a lead wire through hole in its center.

In this way, the mounting base of the heating rod 14 is connected to the hot air passage 7.
Since it is fixedly supported by the heating rod fixing piece inside 0, it will be heated by hot air.

Reference numeral 17 denotes a hook for attaching and detaching the hair set tool, which is attached to a part of the heating rod fixing piece 13 and is operated by a spring 19 and a slide button 18. The slide button 18 has flanges 66 protruding from both sides and is held between the main body cases 1a and 1b.

The heating rod fixing piece 13 is held between the main body cases 1a and 1b, and is fixed with screws 20 from both sides. Reference numeral 21 is an outlet cap attached to the tip of the main body case so as to cover the screw 20. The outlet cap 21 is attached by fitting a groove 67 formed on the inner surface of the outlet cap 21 with a protrusion 68 formed on the outer surface of the main body case. Also,
Reference numeral 22 denotes a flange formed on the outlet cap 21, the outer diameter of which is set larger than the outer diameter of the main body case, and an inclined portion 23 is formed facing the hair set tool. 26 is a curler body which is a type of hair setting tool, including a curler 27 and a C cap 3.
4, C knob 35, C pipe 28, cushion 2
9. Consists of a pin brush 31. The curler 27 has a polygonal shape and is made of a metal material such as aluminum that has good heat conductivity. Reference numeral 29 denotes a cushion made of an elastic material such as rubber, into which a pin brush 31 is embedded and housed within the curler convex portion. The C-pipe 28 with a bottom on the tip side is made of a material such as aluminum that has good heat conduction.
It penetrates through and abuts a C knob 35 on the distal end side and a C cap 34 on the proximal side, and the C knob 35 is integrated with a stud 38 and the C cap 34 is crimped together.

Reference numeral 30 denotes a slit formed in the longitudinal direction of the surface of the convex portion of the curler 27, from which a pin brush 31 is protruded to form a brush. The pin brush 31 is made of an elastic material such as stainless steel, and has one end shaped like a nail head and the other end treated with a bevel 32 made of synthetic resin. Further, the nail head portion of the pin brush 31 is in contact with the surface of the C pipe 28, penetrates the cushion 29, and projects onto the surface of the curler 27. The C cap 34 has a groove 36 formed on its circumference so as to fit into the hook 17. The C knob 35 has a flange whose diameter is larger than the surface of the curler 27, and the surface of the flange on the curler 27 side is an inclined surface 37, and an overlap part 40 is formed with the end of the curler 27. ing. Spring 39 is C pipe 28
It is fixed to the bottom of the body with studs 38. Reference numeral 42 denotes a comb, which is a type of hair setting tool, and is formed of a cylindrical part made of synthetic resin, with comb blades 63 formed as convex ribs formed in the circumferential direction over almost the entire length of the comb blades. The purpose of this convex rib is to guide hair, and the concave groove has the same effect. Reference numeral 44 fastens a spring 45 with a stud. 41 is heating rod 1
The heating device is built in the heating element 4 and is composed of a heating element 46, an electrode plate 47, an insulating sheet 48, and a heat radiation piece 49. The heating element 46 has a positive resistance-temperature characteristic and uses an element with an inflection point of about 120°C. Two heating elements 46 are arranged in parallel with electrode plates 47a and 47b.
They are sandwiched in between and integrated with studs 53 via an insulating piece 50. Reference numeral 52 denotes a convex portion for the purpose of positioning the heating element, which is extruded on the side of the heating element.
51 is a terminal extending integrally from the electrode plate to which a power source is connected. The heating element integrated with the electrode is covered with an insulating sheet 48 and press-fitted into the heating rod 14 while being held between heat radiating pieces 49. 54 is a switch held between main body cases 1a and 1b. 5
A heater 7 for generating hot air is wound around the outer periphery of bobbins 55 and 56 assembled in a cross shape. 58
59 is a thermostat embedded in the bobbin, and 59 is a temperature fuse installed in the form of a bridge between the bobbins. 60 is a cylindrical metal heat shield plate that covers the heat generating device.

The electric circuit of the product of the present invention is as shown in Figure 12.
9 is a temperature fuse connected to the power supply side, 61 is a voltage drop resistor, 62 is a rectifier, 4 is a DC motor, 57 is a heater for generating hot air, 58 is a heating element 5
7 is a thermostat connected in series, and 46 is a positive resistance temperature characteristic heating element. 54 can be switched to "0-a, b", "0-a" and "off" using a switch.

Next, the functions of the above embodiment will be explained.

Air sucked through the suction port 2 is pressurized by the fan 5, passes through the heater 57, is hot-aired, and is blown out from the blow-off port 3. The blower outlet 3 is located outside the outer diameter of the curler 27, and the hot air from the blower outlet 3 flows along the outer surface of the curler 27. Further, when the hair 69 is wound around the curler 7 as shown in FIG. 13, the hair will flow on the surface of the hair. On the other hand, the temperature of the heating rod heated by the heating element 46 is conducted to the surface of the curler 27 via the metal C-pipe 28, and heats the hair directly from the inside. Next, after heating the hair for the required time, turn the switch to "0".
By switching to the "-a" circuit, the hot air is switched to cold air and the hair is rapidly cooled.

According to the embodiment having the configuration and functions as described above, a hair dryer with good curling performance and the following effects can be obtained.

Because the structure is such that when applied to the hair, it is immediately heated by hot air from the outside and by heat conduction from the metal from the inside, it is not possible to use conventional brush dryers (only hot air blows from the inside or outside) and hair irons, as shown in Figure 14. (Compared to heat conduction only from the inside), the temperature within the hair rises faster. In this regard, as shown in Fig. 15, the above-mentioned embodiment can operate for a short time compared to conventional brush dryers (hot air only from the inside or outside) and hair irons (only heat conduction from the inside). The degree of habit is getting better.

By using metal curlers, heat can be quickly applied to the hair. In addition, by using a positive resistance temperature characteristic heating element as the heating element in the heating rod, heat is quickly replenished in conjunction with the metal curler, so the temperature of the curler does not drop even when used continuously. Moreover, there is no deterioration in the embedding performance.

It is possible to operate the blower circuit alone, and by blowing cold air after heating the hair, the degree of curling is further promoted and the hair retains well after setting.

By using a positive resistance temperature characteristic heating element having self-temperature control characteristics as the heating element in the heating rod, a temperature control device for the heating rod is not required, resulting in a simple structure.

[Brief explanation of drawings]

Fig. 1 is an overall sectional view of a product showing an example of the present invention, Fig. 2 is a sectional view taken along the line A-A, Fig. 3 is a sectional view taken along the line B-B, and Fig. 4 is the main body with the hair set tool removed. A partial sectional view of the tip of the case, FIG. 5 is a plan view of the curler body, FIG. 6 is a plan view of the comb, and FIG. 7 is a D
-D section sectional view, Fig. 8 is an E-E sectional view of the curler body, Fig. 9 is a C-C sectional view of the heating rod, Fig. 10 is a perspective view of the heating element in the heating rod, and Fig. 11 is a normal view. Resistance-temperature characteristic diagram of the heating element, Figure 12 is an electric circuit diagram, Figure 13 is a diagram of hair wrapped around the curler body, Figure 14 is a comparison diagram of hair temperature rise during operation, FIG. 15 is a comparison diagram of the degree of curling. 1... Body case, 3... Air outlet, 4... Electric motor, 5... Fan, 13... Heating rod fixing piece, 14
...Heating rod, 14a... Mounting base, 26... Curler body, 27... Curler, 46... Positive resistance temperature characteristic heating element, 70... Hot air passage.

Claims (1)

[Claims] 1. Hair made by arranging a hot air generator and a hot air outlet on an axis, attaching a metal heating rod with a built-in heating element to the hot air outlet, and attaching a curler body to the outer surface of the heating rod in a detachable manner. In the dryer,
A heating rod in which a positive resistance temperature characteristic heating element is used as a heating element in the heating rod, and the mounting base of the metal heating rod is disposed in a hot air passage between a hot air generator and a hot air outlet. A hair dryer characterized in that a curler body fixed to the center of a fixed piece and having a brush formed on the circumference is attached to a heating rod, and the hot air outlet is positioned outside the outer peripheral surface of the curler. .