JPH0318882B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to a hair iron.

Conventionally, there were devices that had a display part on the handle that displayed the energization status of the heater (for example, the
No. 32769).

However, this conventional example has disadvantages in that the number of parts increases because the display section is provided on the handle, and it may be difficult to see depending on the position of the handle.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a hair iron that can display the power supply to the heater without increasing the number of parts, is easy to see from the outside, and has good operability.

An embodiment of the invention is shown in FIGS. 1 to 3. 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 1. A hair press plate 4 is provided at the tip, and the heating rod 3 and the 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. There is.

The heating rod 3 has a conical transparent cap 8 with low thermal conductivity attached to the tip of a metal pipe 7, a pilot lamp 8a for energization indication is housed inside the cap, and a positive temperature coefficient thermistor is installed inside the center of the metal pipe 7. The used PTC heater 9 and heat sink 10 are attached together with heat-resistant tape 11. heating rod 3
A support pipe 12 having different diameter steps is fitted to the rear end, and this support pipe 12 is fitted to the tip of the first holder 1. The first holder 1 is composed of two split housings 1a and 1b, and inner bosses 13 and 14 provided at the tips are fitted into the housings 1a and 1b, and a tapping screw 1 is inserted into the first holder 1.
5 and at the same time the support pipe 12
are fitted into inner bosses 13 and 14 and held.
Further, at the rear end of the first holder 1, the housing 1a,
A shaft 16 is provided between the shafts 1b, and a connecting opening 17 is formed on the side thereof, and the curling rotation center of the hair iron is located on the rear end side of the shaft 16 (imaginary line P).
Cylindrical portions 18a, 18b centered at are formed in the housings 1a, 1b, and the cylindrical portions 18a, 18b
A rotary connector 19 is fitted inside, and the outer surface is covered with a cylindrical cover 20 to integrate the housings 1a and 1b. A sliding power switch 21 is installed inside the first holder 1 at a position in front of the opening 17, a current limiting resistor 23 is placed in the front position, and a first power switch 21 is placed in the front position, that is, a position away from the shaft 16. A lock button 24 of the lock means 6 is provided at a position on the front end side of the holder 1. This lock button 24 is provided on the surface of the housing 1a so as to be slidable in the longitudinal direction of the first holder 1. A hole 25 is formed on the housing 1b side, and an elastic hook 26 extending from the lock button 24 is inserted into the hole 25. It is located. 28 is a lead wire, and 29 is a power cord drawn out from the rotary connector 19.

The hair holding plate 4 is a metal plate having an arcuate cross section with a radius of curvature equal to or larger than the outer diameter of the heating rod 3, and when the rear end is bent in steps and pressed against the heating rod 3, the heating rod 3
is made to elastically contact the rear end side gradually from the front end side, and the rear end is further connected to the second holder 2.
It is attached to the tip of the The second holder 2 consists of a main body 30 and a main body cover 31, and the hair press plate 4 is attached to the tip of the main body 30 with a pair of tapping screws 3.
2 and 33, and is covered with a 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 . Also, a bearing 35 is attached to the rear end portion 2a of the second holder 2.
When the first holder 1 is fitted into the housing, the rear end 2a of the second holder 2 is positioned in the opening 17 to fit the shaft 16, and the bearing 35 is inserted into the opening 1.
The spring 5 formed of a coil spring is interposed and held between the bottom surface 17a of the spring 7 and a flat surface 36 that fits into the opening 17 of the rear end portion 2a. In this way, the first holder 1 and the second holder 2 are rotatably connected by the shaft 16, biased open by the spring 5, and by sliding the lock button 24 of the locking means 6,
When the holders 1 and 2 are closed, the elastic hooks 26 and the locking protrusions 34 are engaged and disengaged.

When this hair iron plugs the power cord 29 (not shown) into an outlet (not shown) and turns on the power switch 21, the current limiting resistor 2
3 and the pilot lamp 8a lights up, power is simultaneously supplied to the heater 9 and it generates heat.
At this time, since the lamp 8a is housed in a transparent cap, it can be seen from a distance both in the axial direction and the radial direction of the heating rod 3. In this regard, conventionally, as shown in FIG. 4, the energization indicator N was provided on the side surface of the holder 1', so that it was only possible to tell whether the lamp was lit or not from one direction, which caused problems in terms of safety and power saving.

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 lock the elastic hook 26 into the locking protrusion 34. to be locked. When the heating rod 3 reaches a predetermined temperature, the lock button 24 is pressed.
is released, and the first and second holders 1 and 2 are opened by the restoring action of the spring 5. Next, insert the heating rod 3 and the hair presser plate 4 into the hair, grip the holders 1 and 2 to sandwich the hair between the heating rod 3 and the hair presser plate 4, and operate the lock button 24 to lock the hair. , hold the holders 1 and 2 with one hand, lightly pinch the cap 8 with the other hand, and turn the hair iron to hold the hair for a few seconds.

On the other hand, when the power switch 21 is turned off, the heater 9
stops, the pilot lamp 8a goes out, and the device is stored and stored by closing it again and locking the locking means 6.

As mentioned above, the hair iron of this invention is
A heating rod with a built-in heater, a holder provided at one end of the heating rod, a hair press plate rotatably connected to the holder to open and close the heating rod, and the other end of the heating rod. The heater has a transparent conical cap with low heat conductivity, and a pilot lamp that is installed inside the cap and lights up when the heater is energized, so that it has the following effects. In other words, by installing a pilot lamp inside the cap at the tip of the heating rod, it is possible to display the current status without increasing the number of parts, and because the cap is conical, it is easy to see from the outside and the current status is the same from any direction. This can be confirmed, and the conical shape makes it easier to introduce hair when pinching it. Also, when hair is wrapped around the heating rod, the cap is visible on the outside, so you can check whether the electricity is on. Furthermore, the cap has low heat conductivity, so it doesn't get hot when you hold it, and its conical shape makes it easy to grip, making it easy to turn the heating rod. Since you can turn your hair to wrap it, it has the effect of making it easier to set your hair.

[Brief explanation of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention, FIG. 2 is an enlarged cross-sectional view thereof, FIG. 3 is a cross-sectional view taken along the - line, and FIG. 4 is a perspective view of a conventional example. 1, 2...Holder, 3...Heating rod, 4...Hair press plate, 8...Transparent cap, 8a...Pilot lamp, 9...Heater.

Claims (1)

[Claims] A heating rod with a built-in heater, a holder provided at one end of the heating rod, a hair press plate rotatably connected to the holder to open and close the heating rod, and the other end of the heating rod. A hair iron comprising: a transparent conical cap having low heat conductivity; and a pilot lamp provided within the cap and turned on when the heater is energized.