JPH03215205A - Battery-powered electric curling irons with brush - Google Patents

Abstract

PURPOSE: To provide an electric hair curler into which an unique safety means is assembled by placing a plug means at almost the longitudinal center of a hollow housing member, rolling a heating element having a conducting means covered with an insulator, placing the heating element in a rod-shaped body, and extending the heating element in the longitudinal direction of the rod-shaped body. CONSTITUTION: A switch 5 enclosing a sliding plate 7 is placed on a handle 1, and when the opening 10 of the handle 1 is opened by moving the sliding plate 7 to the right, a plug 11 can be drawn out through the opening 10 and inserted into a wall socket. At an on position where the sliding plate 7 connects a fixed contact member 17 to a flexible contact member 19, a heating element 21 and a LED 2 are both connected to a battery 23, and at a recharging position the battery 23 and the LED 2 are both connected to an AC power supply and a current flows form the battery 23, heating the heating element 21. The heating element 21 located inside a rod-shaped body 3 comprises metallic foil strands 31, which are covered with an insulating Kapton film layer 33, with the Kapton film rolled to form a roll member.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention This invention relates to a brushed battery powered electric curling trowel having a battery recharging circuit.

[Prior Art, Problems to be Solved by the Invention] Electric curling trowels are well known. Curling irons that are not battery powered were, for example,
U.S. Patent No. 4,228,343 granted to Anner et al.
, No. 4,075,458, granted to Moyer on February 21, 1978, July 18, 1978.
U.S. Patent No. 4,10 granted to Van Dyck et al.
1.757. In these curling irons, the heating element is preheated by connecting it to a household AC power source. If the heating element is not sufficiently preheated, it will become cold before the curling process is complete and must be reheated.

Of course, this is inconvenient. In any case, there is at least a waiting period while the trowel is preheated before use.

Furthermore, in the above-mentioned known example, since heat is directly applied to the rod-shaped body, there is a risk of grasping the heated rod-shaped body.

The devices of the above-mentioned US patents all include a plug that is housed within the handle and is adapted to be removed from the handle and inserted into a wall socket to preheat the heating element.

U.S. Pat. No. 4.641.010 to Abura et al., granted February 3, 1987;
U.S. Patent No. 4.354,092 granted to anaba et al.
issue describes an example of a battery-powered curling trowel with a battery recharging device.

In U.S. Pat. No. 4,641,010, the heating element is on the outside of the wand and comes into direct contact with the user's hair when using the curling iron, but the hand holding the wand may accidentally come into contact with it. be. Needless to say, this also poses an unnecessary risk.

It was therefore an object of the present invention to provide an electric hair curler that overcomes the above-mentioned drawbacks.

More particularly, it is an object of the present invention to provide an electric hair curler that incorporates unique safety measures.

SUMMARY OF THE INVENTION According to the present invention, a battery powered electric curling iron with brushes comprises a first hollow, longitudinally extending cylindrical member, and a first hollow, longitudinally extending cylindrical member extending into the cylindrical member. The rod includes an electrically insulating covered heating element having an input terminal at one end of the cylindrical member. A handle comprising a second hollow, longitudinally extending cylindrical housing member includes a space within the housing for receiving at least one battery for providing electrical power. An output terminal is provided at one end of the second cylindrical member, and switch means are provided on the handle for connecting the battery to the output terminal. One end of the rod is removably connected to one end of the handle, and when the rod is connected to the handle, the input terminal contacts the output terminal, thereby transmitting power from the battery through the switch means to the heating element.

EXAMPLES The present invention will be better understood by considering the following description in conjunction with the accompanying drawings.

With reference to the round, the curler includes a handle l consisting of a hollow cylindrical member. An LED 2 (see also Figures 2A and 2B) is located at the base of the handle for purposes described below. The curler also includes a rod 3, which is also a hollow cylindrical member, which can be inserted into and withdrawn from the handle l as explained below. The rods come in two different styles as shown at 3 and 3A in FIGS. 1 and IA. That is, l)
2) a hollow cylindrical member 3A with a clamp 27 of FIG. 1; and 2) a hollow cylindrical member 3A with plastic nylon teeth 45 of FIG. IA. Each hollow cylindrical member has three diameters, 374 inches (19.05 mm), '/. inch (15.88 mm),'/. It can be made in inches (12.7 mm).

A switch 5 including a sliding plate 7 is arranged on the handle 1. As can be seen in FIG. 2A, the sliding plate 7 includes a downwardly extending protrusion 9 adapted to cover or open the opening 10 of the handle 1.

A plug 11 (which can assume either a recharging position as shown in Figure 2A or an actuated or retracted position as shown in Figure 2B) is located in the space in the hollow handle l and below the opening IO. can be laid down. This plug is mounted on a support 13 and can be pulled out to its recharging position. When sliding plate 7 is moved to the right to open opening 10 (FIG. 2A), plug 11 can be pulled out through opening 10 and inserted into a wall socket.

Note that the plug is placed around the center of gravity of the curler, allowing the curler to be balanced around the plug.

When plate 7 is moved to the left to cover opening 10, as shown in Figure 2B, plate 7 exerts a force on the plug causing it to assume the inoperative position.

As shown in FIGS. 2A, 2B and 5, the rod-shaped body 3
The space between the heating element 21 and the jacket 300 is filled with a refractory material 301 to better transfer heat from the heating element 21 to the jacket 300.

Here, with reference to FIGS. 3A, 3B, and 3C, a fixed contact member 17 and a flexible contact member 19 adjacent thereto are located below the sliding plate 7.

As can be seen, these contact members 17, 19 are connected in series to a heating element 21 and a battery 23. The battery 23 is housed within the handle space as seen in Figures 2A and 2B, and the heating element is located within the rod as described below.

When the plate 7 is in its intermediate position W (FIG. 3A), the protrusion 9 of the plate 7 abuts the flexible contact member 19 and applies force to the member l9, bringing it into contact with the fixed contact member 17; As a result, the heating circuit is completed and current flows from the battery 23 through the heating element 21 and heats the heating element 21. Preferably, the circuit with this heating element 21 is provided with a temperature regulator 22, which stops the current when the heating element reaches a predetermined temperature;
Current flow is resumed when the heating element has cooled to a second predetermined temperature.

When the plate 7 is in its left tip position (FIG. 3B) or right tip position (FIG. 3C), the protrusion 9 no longer abuts the flexible contact member l9, and therefore the flexible contact member 1
9 is no longer in contact with the fixed contact member 17. The heating circuit is therefore no longer closed and the heating element is no longer powered.

The sliding plate 7 is at the left end position or the intermediate position (respectively, the third A
When in position (FIG. 3B), it is located above the plug 11, so that the plug 11 is in the operating position in the handle and cannot be inserted into the wall socket. When the sliding plate 7 is at the right end position (Fig. 3C), the opening 1
0 is open, the plug can be pulled out of the handle through the opening 10 and placed in the recharging position.

At this time, the plug can be inserted into a household wall socket. As can be seen, contacts 12, 12A of plug l1 are connected to a recharging circuit 25, which in the recharging configuration is connected to battery 23. When the plug 11 is in the recharging position, it can be plugged into a wall socket, as described above, and power is then supplied to the recharging circuit to recharge the battery.

It is noted here that according to the arrangement of the invention, the battery cannot be charged while the heating element is being heated, and the heating element cannot be heated while the battery is being recharged. Thus, the heating element is completely isolated from AC recharging power. This is also shown in FIG.

As can be seen in Figure 4, the charging circuit includes a four diode rectifier. LED2 lights up when the battery is being recharged or when the heating element is being heated up. The circuit of FIG. 4 is entirely housed within the handle 1.

In FIG. 4, when the sliding plate 7 connects 17 to 19,
This corresponds to the state in which the sliding plate is at the left end position. In view of the operation of the circuit in this position, this is called the on position.

When plate 7 does not connect 17 to 19 and 12 and 12A to 111, the slider is in its left tip position. In view of the operation of the circuit in this position, this is called the off position.

Sliding plate 7 does not connect 17 to 19, but works 2 and 12
When A is connected to 111, the slider is in its right tip position. In view of the operation of the circuit in this position, this is called the recharging position.

In the on position, both heating element 21 and LED 2 are connected to the battery. In the recharging position, both battery 23 and LED 2 are connected to AC power. In this way, L.E.
The on state of D2 indicates either a recharge or activation state.

In the off position, battery 23 is disconnected from both heating element 21 and AC power, and LED 2 is disconnected from both battery 23 and AC power. Therefore, the LED off state does not indicate either a recharging or operating state. The provision of an intermediate (off) position allows the heating element 21 to be isolated from the AC power source without the need for two separate actuation circuits.

2A, 2B and 5, the heating element 21 includes a coil that extends longitudinally along the length of the rod 3 and is surrounded by the rod. Although only one layer of the winding member is shown in FIG. 5 for clarity of illustration, the winding member may have any number of layers.

Note that in Figures 2A and 2B, 2l is not a cross section. 2A, 2B, and 5 show the wall 3 of the rod-shaped body 3.
Although it shows 21 as if it is spaced from 01,
This was for brevity. The heating element 21 normally rests against the wall 301 of the bar 3 .

The heating element is preferably made of Kapton" film as shown in FIG. 6. As can be seen in FIG. It is covered by one, preferably two, layers of insulating Kapton film 33. The Kapton film is rolled to form a rolled member. The metal foil stride has an input terminal 35 at one end.
includes. As can be seen in Figure 2A2B, the terminal 35 is connected to the contact 43 by a lead 38.

As can be seen in Figure 7, the plug-in end of the rod is located at the sixth
It includes contacts 43 connected to each of the terminals 35 shown. The plug-in end of the rod 3 also includes a locating tap 41.

The end of the handle includes a receptacle 36 for receiving the plug-in end of the rod. As can be seen in FIG. 8, the receiver includes a positioning groove 39 and a contact 37. When the rod is inserted into the handle, the groove 39 guides the tab 41;
When fully inserted, each of contacts 37 connects to contact 4
make physical and electrical contact with each of 3. Next, 44 (
(see Figure 1) to lock the contacts. This connects the heating circuit to the heating element as shown schematically in FIG.

The use of an insulating cover on the heating element can insulate the rod from the heat of the heating element and provide electrical insulation between the heating element and the rod to provide a more complete measure.

Rechargeable Nisokel Cadmium battery is 18D
Call, and its use is as follows (see also Figure 9).

Features 0 Long life 0 High rate discharge 0 Re-sealable safety vent ○ Can be installed in any position ○ Overcharging ability ○ No maintenance required ○ Flat discharge voltage distribution Specification Voltage * Rated voltage } d-c... ...1.225℃0. Capacity (Ah) up to 9 V * Rated minimum value 2.2A (C) rate 2.2 Expected minimum value 440mA (c/5) rate 2. At 425℃ Charging rate (mA) *Minimum rate overcharge 220 Minimum charge rate 110 * Maximum discharge at 25℃ (A) Continuous...................................58 Instantaneous (1 second)...116*Cell temperature limit (1) Storage... ... -40"~+50" release! Cell at time... -20'~+50' Cell when charged at 220mA...+5°~+50° Effective internal resistance RE (milliohm) *Minimum rated value・・・・・・・・・・・・・12 Representative values・
・・・・・・・・・・・・・・・10 Weight typical value (oz)・・・・・・・・・3.2 (Durham)・・・・・・90.7 representative ○Electronic equipment ○Photography equipment ○Military equipment ○Emergency lights ○Mobile lights ○Computer standby power supply ○Communication equipment The rod-shaped body is used as a clamp member 2 as shown in Figure 1 and Figure IA.
7 or plastic teeth 45.

Although only one embodiment has been described, this is for illustrative purposes only and is not intended to limit the invention.

Those skilled in the art can easily make various modifications that depart from the scope of the claims.

[Brief explanation of drawings]

FIG. 1 is a top view of a hair curler according to the invention. FIG. IA is another rod for use in the hair curler of FIG. Figures 2A and 2B are side views of the hair curler of the present invention, showing the plug in the recharging and retracting positions, respectively. 3A, 3B and 3C are diagrams schematically showing the sliding plate and the plug in three different positions. FIG. 4 is a schematic diagram of the curler heating and recharging electrical circuit. FIG. 5 is a cross-sectional view taken along the line v-vvA in FIG. 2A, showing the position and form of the heating element. FIG. 6 shows the heating element in an expanded position. FIG. 7 shows the plug-in end of the rod. FIG. 8 is a view showing the receiving end of the handle. In the drawings, 1-handle, 2-LED, 3-rod-shaped body, 7-sliding plate, 9-protrusion, 〇-1 opening, 1-.-plug, 3-support body, 7, 19-contact member, 1- heating element, 3- battery, 5- recharging circuit.

Claims (4)

[Claims] (1) A brushed, battery-powered electric curling iron comprising: A. a first hollow, longitudinally extending cylindrical member; i. extending within the cylindrical member; a bar containing a heating element with an insulating cover having a set of input terminals at one end; B. a second hollow, longitudinally extending housing member; i. a rechargeable battery for supplying electrical power; a space provided in said housing for receiving; ii. a set of output terminals at one end of said second housing member; iii. an opening passing through a surface of said second housing member; iv. said opening. a first storage position and a second storage position protruding through the opening;
v. three predetermined positions; a. said cover member completely closing said opening; b. a second position of the cover member in which the cover member partially closes the aperture; and c. a second position in which the cover member substantially completely opens the aperture. a sliding cover member slidably attached to the opening to occupy one of the first and third positions of the cover member; and the plug means is movable into the extended position and pulled out through the opening when the cover member occupies the third position; has a first blade and a second blade and is capable of being plugged directly into a domestic AC power source; d. a sliding cover member including a downwardly extending protrusion at one end thereof; vi; , a fixed contact member mounted within the housing; and vii. a movable contact member mounted in alignment with the fixed contact member, the movable contact member being configured to move the cover member to the second position. When the cover member is moved, the protrusion abuts the fixed contact member, and when the cover member is in a position other than the second position, the fixed contact member and the movable contact member are prevented from contacting each other. a movable contact member; viii. a circuit arrangement within the housing, comprising: a. 1. a first diode having an anode and a cathode; 2. a second diode having an anode and a cathode; 3. an anode and a cathode. 4. a fourth diode having an anode and a cathode; 5. the cathode of the first diode is connected to the anode of the second diode at a first junction; 6. The cathode of the second diode is connected to the cathode of the third diode at a second junction, and 7. The anode of the third diode is connected to the cathode of the third diode at a third junction. connected to the cathode of the fourth diode; 8. the anode of the fourth diode is connected to the anode of the first diode at a fourth junction; 9. the fourth junction; is connected to a first power terminal within the housing, 10, the third junction is connected to a second power terminal via a parallel resistive capacitive connection within the housing, and 11. first means on the plug means for electrically connecting a first blade of the plug means to the first power terminal when the plug is moved to the extended position; 12. the plug; second means on said plug means for electrically connecting a second blade of said plug means to said second power terminal when said rectifier bridge is moved to said extended position; The plug means is in the protruding position and it is for domestic use A.
13. said domestic AC power source is connected between said first and third junctions of said rectifier bridge when plugged into a C power source; 13. said fourth junction; is connected to ground; 14. a rectifier bridge such that the second junction is connected to the positive terminal of the recharging battery and the negative terminal of the recharging battery is connected to ground; and b. a fifth diode having an anode connected to said second junction and a cathode connected to a fifth junction; c. an anode connected to said third junction. and a sixth diode having a cathode connected to the fifth junction, and d, an LED diode having an anode connected to the fifth junction and a cathode connected to ground; e, one end of the heating terminal is connected to one of the input terminals, and the other end is connected to the other of the set of input terminals, and f, the set of input terminals is , connected to each of the set of output terminals, g. One of the set of output terminals is connected to ground, h. The other of the set of output terminals is connected to the movable contact member. i. the fixed contact member is connected to the second juncture, the fixed contact member comprising: a circuit arrangement in the housing comprising; C. When the first cylindrical member is connected to the second cylindrical member, the one set of input terminals contacts the one set of output terminals, whereby the cover member is connected to the second cylindrical member. position, the recharging battery connects to and powers the heating element, and the cover member is in the third position and extends the plug means outwardly through the opening. Said one end of said first cylindrical housing member is connected to said first cylindrical housing member such that when plugged into a domestic AC power source, AC power is supplied to said battery through said circuit means for recharging said rechargeable battery. An electric curling trowel, the electric curling trowel being removably connected to one end of a second cylindrical housing member. (2) The brush-equipped electric curling iron according to claim (1), wherein the plug means is disposed approximately at the longitudinal center of the hollow housing member. (3) The electric curling iron with a brush according to claim (1), wherein the heating element is provided with conductive means covered on both sides with an insulating material including a Kapton film, and the heating element is rolled up into the rod-shaped body. A curling iron with a brush, characterized in that the brush-equipped curling iron is arranged in the rod-shaped body, extends in the longitudinal direction of the rod-shaped body, and is surrounded by the rod-shaped body. 4. An electric brush curling trowel according to claim 3, wherein said electrically conductive means includes two side-by-side metal foil elements.