JPS598903A - Hair iron - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a hair iron, and an object of the present invention is to enable a display section that displays the usage time after energization to be rotated by -1 degree from any direction.

A first embodiment of the invention is shown in FIGS. 1 to 5. That is, in this hair iron, the rear ends of a first holder 1 and a second holder 2 are rotatably connected, a heating rod 3 is provided at the tip of the first holder 1, and a heating rod 3 is provided at the tip of the first holder 2. A hair press plate 4 is entirely provided at the tip, and the heating rod 3 and hair press plate 4 are opposed to each other so that they can be opened and closed freely, and are biased open by a spring 5, and locked in the closed state by a locking means 6. are doing.

The heating rod 3 has a conical transparent camp 8 at the tip of the metal pipe 7.
A temperature indicating member 8a such as a water temperature tape or a temperature indicating paint that changes color at a predetermined temperature is attached to the inner surface thereof, and this is held in place by a transparent presser body 8b. These transparent presser body 8b and cap 8 are made of cellulose material with poor heat conduction,
Further, the operating temperature of the temperature indicator 88 is determined by the metal piping when the temperature of the metal pipe 7 reaches a state where it can be used for hair wrapping.

It is assumed that the temperature is set to the temperature when heat is transferred through the presser body 8b and the cap 8at. A PTC heater 9 using a positive temperature coefficient thermistor and a heat sink 10 are integrally mounted inside the center of the metal pipe 7 with a heat-resistant tape 11. The rear end of the heating rod 3 is a support pipe with steps of different diameters]
2, and this support pipe 12ffi first holder 1
It is fitted on the tip of the The holder 1 of Ml is composed of a two-split housing Iallb, and an inner boss 13.14i provided at the tip is fitted and fixed together with a tapping screw 15, and at the same time the inner boss 13.14 of the support pipe 12 is fixed together with a tapping screw 15.
4 and is held in place. In addition, a shaft 6 is provided between the housings la and lb at the rear end of the first holder l, and a connecting opening 17 is entirely formed on the side thereof, and a shaft 16 is provided at the rear end of the first holder l.
A cylindrical part 18a + 18b k'' is formed with the entire center of the winding rotation center (imaginary line P) of the hair iron on the rear end side, and this cylindrical part 18a, 1
A rotary connector 19 is fitted into the housing 8b, and the outer surface is covered with a cylindrical cover 20 to integrate the housings la and lb'. A sliding power switch 21 is installed inside the first holder 1 at a position in front of the opening 17, a pilot rung 22 and a current limiting resistor 23 are arranged at the front position, and further, at a position at the front side, that is, away from the +11116 mentioned above. A lock button 24 of the locking means 6 is provided at the front end side of the first holder l. This lock button 24 is located in the housing 1
A hole 25 is formed in the housing lb side, and an elastic hook 26 extending beyond the lock button 24 is positioned in the hole 25. 27 is the transparent window of the pilot rung 22, 28
is a lead wire and a power cord pulled out from the 29-piece rotary connector 19.

The hair holding plate 4 is a metal plate having a circular arc section with a radius of curvature equal to or greater than the outer diameter of the heating rod 3, and its rear end is beveled in steps so that when pressed against the heating rod 3, the tip of the heating rod 3 The holder 2 is arranged so as to come into elastic contact with the rear end side gradually from the side, and furthermore, the rear end is attached to the tip of the second holder 2. The second holder 2 is connected to the main body 30 and the main body cover 31 by attaching the hair press plate 4 to the tip of the main body 300 with a pair of tapping screws 3.
The main body cover 31 covers the main body cover 31. A locking protrusion 34 that locks onto the hook 26 is formed on the surface of the main body cover 31 . In addition, the rear end portion 2a of the second boulder 2 is fitted into the housing of the ML holder 1, and the rear end portion 2a of the second holder 2 is positioned in the opening 17. to fit the shaft 16, and to connect the bottom surface 17a of the opening 17 and the opening 1 of the rear end 2a.
1 formed by a coil spring between the flat surface 36 that fits into 7
iii. The material 5 is interposed and held. In this way, the first holder 1 and the second holder 2 are rotatably connected by the shaft 1G, and are biased open by the spring 5, and when the lock button 24 of the locking means 6 is slid, the holders P and holder L are opened.

2, the elastic hook 26 and the locking protrusion 34 are fully engaged and disengaged.

In this hair iron, when the plug of the power cord 29 (not shown) is inserted into an outlet (not shown) and the power switch 21'lr is turned on, the iron lamp 22 lights up and at the same time, power is supplied to the heater 9 and it generates heat. .

When the metal pipe 7 of the heating rod 3 is heated and reaches a usable temperature, the temperature indicator 8a changes color. At this time, the cap 8 is formed into a conical shape, and the temperature indicator 8a is attached to its inner surface. Therefore, the discoloration of the temperature indicating member 8a can be seen from both the axial direction and the radial direction of the heating rod 3.

When in use, hold the first holder 1 and the second holder 2 in one hand, bring the hair press plate 4 into contact with the heating rod 3, slide the lock button 24, and push the elastic hook 26 into the locking protrusion 34. Lock it. When the temperature indicator 8a changes color, the lock button 24 is released, and the restoring action of the spring 5 opens the first and second holders 1°2. Next, insert the heating rod 3 and the hair presser plate 4 into the hair with force 1j, and hold the hair with the holder], , 2 fr: to push the hair between the heating rod 3 and the hair presser plate 4, and lock the lock button 24. and hold the sandwiched state.

Furthermore, as the hair iron rotates, it wraps the whole hair around and holds it for several seconds ◎ Meanwhile, the power switch 20
When the heater 9 is turned off, the heater 9 is stopped, and the device is stored and stored by closing it again and locking the locking means 6. Further, as the temperature of the heating rod 3 decreases, the temperature indicating member 8a also returns to its original color from the discolored state.

With this configuration, according to this embodiment.

Due to the discoloration of the temperature indicating member 8a, the usable time can be easily determined. Since the temperature indicating member 8a can be viewed from almost any direction, it is possible to make effective use of the time until the usable temperature is reached, and to check whether the hair can be used each time. There is no need to go near the iron to check whether the color has changed, and conversely, there is no need to waste power by waiting longer than necessary. Furthermore, if the cap 8 is made of a low heat conductive material, the cap 8 can be used to curl the hair, making it convenient to use.

A second embodiment of the invention is shown in FIGS. 6 and 7.

That is, this hair iron has a pilot lamp 30 attached to the cap 8 instead of the temperature indicator #8a,
A thermoswitch 31 for driving a pilot lamp 30 is arranged in parallel with the heater 9, and the pilot lamp 22 is omitted.

FIG. 7 shows a lighting circuit in which a lamp 30 is connected in parallel to the heater 9.
．． The contacts of the thermoswitch 31 and the series circuit of the current limiting resistor 23 are connected, and the operating temperature of the thermoswitch 31 is set to the temperature detected when the metal vigua reaches a usable temperature. The rest is the same as the first embodiment.

Note that the same effect can be obtained even if the transparent cap is made of a temperature indicating member.

As described above, the hair iron of the present invention has a temperature indicating means that can be displayed in the axial and radial directions at the tip of the heating rod. Because of this feature, you can easily tell when the hair iron can be used from a distance in any direction.

This has the effect of eliminating the waste of having to approach each item to check it, making effective use of the product up to its usable period, and making it easy to use.

[Brief explanation of the drawing]

Figure 1 is a perspective view of the first embodiment of the invention, Figure 2 is a sectional view taken along line II-11 in Figure 3, Figure 3 is an enlarged sectional view of Figure 1, and Figure 4 is its - 5 is an enlarged sectional view showing the temperature indicating member, FIG. 6 is a sectional view of the second embodiment, and FIG. 7 is a control circuit diagram.

Claims (3)

[Claims] (1) A heating rod, a holder provided at one end of the heating rod, a hair press plate rotatably connected to the holder and operable to open and close the heating rod, and a hair press plate provided at the other end of the heating rod. A hair iron comprising temperature indicating means provided in an axial direction and a radial direction of the heating rod to indicate when the heating rod reaches a usable temperature. (2) The hair iron according to claim 1, wherein the temperature indicating means comprises a transparent cap attached to the other end of the heating rod, and a temperature indicating member housed within the cap. (3) The water temperature means is provided near a transparent cap attached to the other end of the heating rod, a pilot lamp housed within the cap, and a heater built into the heating rod. According to claim (1), the device comprises a thermoswitch for driving a pilot lamp.
Iron (4) The transparent cap is made of a low thermal conductive material.
Hair iron described in section 3).