JP2019071992A - hair iron - Google Patents

Abstract

To provide a hair iron in which a heater can be driven even by electric power of a connected external power supply in addition to electric power of a built-in power supply, and thereby interruption of hair setting due to lowering of the electric power of the built-in power supply can be avoided and the hair setting can be performed continuously.SOLUTION: First and second heaters 9, 10 corresponding to respective heating plates 7, 8 arranged in the inside of respective pinch arms 2, 3 are driven by electric power supplied from at least any one of the power supplies 15, 26 of a built-in power supply 15 and an external power supply 26. Both or any one heater 9 of the first and second heaters 9, 10 are driven by electric power of the built-in power supply 15 in a state where the external power supply 26 is not connected to an iron body 1. In a state where the external power supply 26 is connected, both of the first and second heaters 9, 10 or the other heater 10 not driven by the electric power of the built-in power supply 15 are driven by the electric power of the external power supply 26.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a hair iron for setting hair while heating hair, such as straightening straight hair, or straightening straight hair in curls or waves.

  A hair iron of this type is disclosed, for example, in Patent Document 1. The hair iron of Patent Document 1 includes a pair of upper and lower arms pivotally connected at one end to each other by a hinge, and a heater and a heat retaining plate are respectively provided on opposing surfaces of the arms. A rechargeable battery is built in the hair iron body, and when the switch is turned on, power is supplied from the rechargeable battery to the heater, and the heater is heated to a predetermined temperature. In this state, the hair is sandwiched between the heater and the heat retaining plate, and the hair is straightened or waved by operating the hair iron body. The rechargeable battery is composed of a lithium ion battery capable of rapid charging, and can be charged using a commercial power source by connecting the charging terminal of the AC adapter to the charging terminal of the hair iron body.

JP, 2008-110058, A

  In the hair iron of Patent Document 1, it is necessary to connect an AC adapter and charge the rechargeable battery when the power of the rechargeable battery is reduced due to long-term use. At the time of charging, the supply of power from the rechargeable battery to the heater is shut off, so the heater can not be heated. Therefore, when charging is performed during hair setting, the hair setting has to be interrupted until charging of the rechargeable battery is completed.

  It is an object of the present invention to enable the heater to be driven by the power of the connected external power supply in addition to the power of the built-in power supply, and to perform hair setting continuously without interruption even when the power of the built-in power supply is reduced. It is to provide a hair iron that can.

  The present invention has an iron main body 1 provided with a first pinching arm 2 and a second pinching arm 3 connected so as to be able to swing open and close by a swinging shaft 4, and the opposing surfaces of the respective pinching arms 2 and 3 A hair iron provided with a first heating plate 7 and a second heating plate 8 and in the interior of each sandwiching arm 2 · 3 a first heater 9 and a second heater 10 corresponding to each heating plate 7 · 8 Target. The first heater 9 and the second heater 10 are provided from at least one of the built-in power supply 15 provided in the iron main body 1 and the external power supply 26 connected to the iron main body 1 via the feeding cable 27. It is comprised so that it can drive with the supplied electric power. Then, in a state where the external power supply 26 is not connected to the iron main body 1, both the first and second heaters 9 and 10 or any one of the heaters 9 are driven by the power of the built-in power supply 15. In the state where the external power supply 26 is connected, both the first and second heaters 9 and 10 or the other heater 10 not driven by the power of the built-in power supply 15 are driven by the power of the external power supply 26 It is characterized in that it is configured as follows.

  The first heater 9 can be configured to be driven only by the power of the built-in power supply 15 and the second heater 10 can be driven only by the power of the external power supply 26 in a state where the external power supply 26 is connected to the iron body 1 .

  A configuration can be adopted in which the supply current value supplied from the external power supply 26 to the second heater 10 is set smaller than the supply current value supplied from the built-in power supply 15 to the first heater 9.

  The built-in power supply 15 is composed of a secondary battery. The first power supply line 31 for supplying the power of the built-in power supply 15 to the first heater 9, the second power supply line 34 for supplying the power of the external power supply 26 to the second heater 10, and the power of the external power supply 26 for the built-in power supply 15 And a charging line 37 for supplying. In the state where the external power supply 26 is connected to the iron body 1 and both heaters 9 and 10 are not in operation, the external power supply 26 and the built-in power supply 15 are connected in series via the charging line 37 Thus, the built-in power supply 15 can be charged by the power of the external power supply 26.

  The built-in power supply 15 is disposed in the first pinching arm 2 in which the first heater 9 is provided, and the first heater 9 and the second heater 10 are in the second pinching arm 3 in which the second heater 10 is provided. It is possible to adopt a form in which the power supply switch 17 for switching the power supply state to the power supply state and the power supply socket 28 to which the power supply cable 27 is connected are disposed.

  The outer shapes of the opposing surfaces of the first heating plate 7 and the second heating plate 8 are formed substantially in the same shape long in the longitudinal direction of the sandwiching arms 2 and 3. The first heater 9 is disposed over the entire surface in the longitudinal direction of the first heating plate 7, and the second heater 10 is disposed to face the plate surface of the second heating plate 8 on the open end side of the iron body 1. It can be taken.

  The second heating plate 8 is composed of at least two unit plates 42 and 42 disposed adjacent to each other with a gap in the longitudinal direction of the second heating plate 8. The second heater 10 may be disposed on the unit plate 42 positioned on the open end side of the iron main body 1.

  The space between the unit plates 42 and 42 may be filled with a spacer 43 having high thermal insulation, and the surfaces of the unit plates 42 and 42 and the spacer 43 may be formed flush.

  The outer shape of the opposing surface side of the first heating plate 7 and the second heating plate 8 is formed in a rectangular shape elongated in the longitudinal direction of each of the sandwiching arms 2 and 3. The long side length H1 of the first heating plate 7 and the long side length H2 of the second heating plate 8 are set substantially the same, and the short side length W2 of the second heating plate 8 is short of the first heating plate 7 It is possible to adopt a mode in which the side length is set smaller than W1.

  In the hair iron according to the present invention, when the external power supply 26 is not connected to the iron main body 1, the electric power of the built-in power supply 15 is used for both the first and second heaters 9 and 10 or any one heater 9. In the state where the external power supply 26 is connected to the iron main body 1, both the first and second heaters 9 and 10 or the other heater 10 not driven by the power of the built-in power supply 15 are It was configured to be driven by 26 powers. According to the hair iron configured as described above, it is possible to perform hair setting using the power of the built-in power supply 15 without the need to connect the external power supply 26 in a state where the built-in power supply 15 has sufficient power. . In addition, in a state where the power of the built-in power supply 15 is reduced, the external power supply 26 can be connected, and the power of the external power supply 26 can be used to perform hair setting. As described above, according to the present invention, the first and second heaters 9 and 10 can be driven by the power of the connected external power supply 26 in addition to the power of the built-in power supply 15. Even when the power is reduced, the hair iron can be set continuously without interruption.

  The first heater 9 is driven only by the power of the built-in power supply 15, and the second heater 10 is driven only by the power of the external power supply 26 in a state where the external power supply 26 is connected to the iron main body 1. According to such a hair iron, since the built-in power supply 15 only supplies power to the first heater 9, the consumption of the built-in power supply 15 can be suppressed as compared with the case where power is supplied to both the heaters 9 and 10. . In addition, even when the power of the built-in power supply 15 is reduced, the power can be supplied to the second heater 10 by connecting the external power supply 26 to heat the second heating plate 8. As described above, according to the present invention, while enabling hair setting for a long time by the built-in power supply 15, hair setting is continuously performed by connecting the external power supply 26 even when the power of the built-in power supply 15 decreases. be able to. In addition, since a simple circuit configuration can be adopted in which the built-in power supply 15 and the first heater 9 and the external power supply 26 and the second heater 10 are connected one to one, there is an advantage that the internal structure of the hair iron can be simplified. . Note that if the external power supply 26 is connected while there is sufficient power in the built-in power supply 15, both the first heater 9 and the second heater 10 can be heated. It can be heated and the time required for hair setting can be shortened.

  If the supply current value supplied from the external power supply 26 to the second heater 10 is set smaller than the supply current value supplied from the built-in power supply 15 to the first heater 9, the output current value is smaller than that of the commercial power supply. A battery or the like can be used as the external power supply 26. As a result, even if the output current value of the external power supply 26 is relatively small, the second heating plate 8 can be heated, and accordingly, the connectable external power supply 26 can be diversified to make the hair iron excellent in versatility. it can.

  In the state where the external power supply 26 is connected to the iron body 1 and both heaters 9 and 10 are not in operation, the external power supply 26 and the built-in power supply 15 are connected in series via the charging line 37 The internal power supply 15 is charged with the power of the external power supply 26. According to this, it is possible to charge the built-in power supply 15 and prepare for the next use only by connecting the external power supply 26 when the hair iron is not in use. Since it is not necessary to separately provide a charging socket or the like for the built-in power supply 15, the structure of the hair iron can be further simplified, and the appearance design of the hair iron can be further improved.

  The built-in power supply 15 is disposed inside the first pinching arm 2 in which the first heater 9 is provided, and the power feeding state to both heaters 9 and 10 is switched in the second pinching arm 3 in which the second heater 10 is provided. The power supply switch 17 and the feeding socket 28 to which the feeding cable 27 is connected are disposed. According to this, as shown in FIG. 1, the rocking shaft connecting the first pinching arm 2 and the second pinching arm 3 while arranging the power switch 17 and the built-in power supply 15 in a well-balanced manner in the iron main body 1 The number of lead wires (first and second feed lines) passing through the four parts can be reduced. The built-in power supply 15 and the power supply switch 17 can be arranged, for example, in the form shown in FIG. 4, but in that case the number of lead wires passing through the rocking shaft 4 will be increased. As described above, the wiring of the lead wire and the assembly of the internal structure can be facilitated, which can contribute to the improvement of the productivity of the hair iron. Further, by avoiding the internal structure of the hair iron from being biased to either one of the sandwiching arms 2.3, it is possible to eliminate the weight of the hair iron at the time of hair setting.

  The first heater 9 was disposed over the entire surface in the longitudinal direction of the first heating plate 7, and the second heater 10 was disposed facing the plate surface of the open end side of the iron main body 1 of the second heating plate 8. According to this, since the heat transfer area between the second heating plate 8 and the second heater 10 can be locally reduced because the heat transfer area becomes smaller, even when the output current value of the external power supply 26 is relatively small, the second The open end side area of the iron body 1 of the heating plate 8 can be sufficiently heated to the temperature required for the hair set. In addition, when the second heating plate 8 is locally heated, hair setting can be performed effectively without wasting the second heating plate 8 when the amount of hair to be hair-set is small. By heating the open end side area of the iron main body 1 of the second heating plate 8, there is also an advantage that the iron main body 1 can be easily operated at the time of hair setting.

  The second heating plate 8 was constituted by at least two adjacent unit plates 42, 42, and the second heater 10 was disposed on the unit plate 42 located on the open end side of the iron main body 1. According to this, since only the unit plate 42 in which the second heater 10 is disposed is heated, it is possible to suppress the temperature decrease of the second heating plate 8 due to the heat conduction to the other unit plates 42, and the second 2 A portion of the heating plate 8 can be heated to the temperature required for the hair set.

  When there is a gap between the unit plates 42 and 42, when the hair is sandwiched by both the heating plates 7 and 8, the hair located in the gap can not be sandwiched. However, if the space between the unit plates 42 and 42 is filled with the spacer 43 and the unit plates 42 and 42 and the surface of the spacer 43 are formed flush, the entire heating plates 7 and 8 sandwich the hair uniformly. It is possible to prevent the generation of hair parts where hair setting is not performed. Further, when the spacer 43 is formed of a highly heat-insulating material, the heat can be prevented from being conducted to the adjacent unit plate 42 through the spacer 43, so that the unit plate 42 in which the second heater 10 is disposed is a hair set. It is possible to precisely maintain the required temperature.

  The long side length H1 of the first heating plate 7 having a rectangular outer shape and the long side length H2 of the second heating plate 8 are set substantially the same, and the short side length W2 of the second heating plate 8 is set. It was set smaller than the short side length W1 of the first heating plate 7. According to this, the heat capacity of the second heating plate 8 is reduced, and even if the output current value of the external power supply 26 is relatively small, the entire second heating plate 8 has a temperature required for the hair set. Since the heating can be performed, the hair can be set properly.

It is a schematic front view which shows the internal structure of the hair iron which concerns on Example 1 of this invention. It is a front view of a hair iron. It is an explanatory view showing the 1st and 2nd heating plate. It is a schematic front view which shows the internal structure of the hair iron which concerns on Example 2 of this invention. It is a schematic front view which shows the internal structure of the hair iron which concerns on Example 3 of this invention. It is explanatory drawing which shows the 1st and 2nd heating plate of the hair iron concerning Example 4 of this invention. It is explanatory drawing which shows the front and side surface of the 2nd heating plate of the hair iron which concerns on Example 5 of this invention. It is a schematic front view which shows the internal structure of the hair iron which concerns on Example 6 of this invention.

Example 1 FIGS. 1 to 3 show Example 1 of the hair iron of the present invention. Note that front and rear, right and left, and upper and lower according to the present embodiment follow the display of front and rear, right and left, and upper and lower written in the vicinity of the crossing arrows shown in FIG. As shown in FIG. 2, the iron main body 1 of the hair iron is provided with a pair of first pinching arms 2 and second pinching arms 3 disposed opposite to each other on the left and right, and the lower ends of both pinching arms 2 and 3 are pivoting shafts It is connected to be able to open and close by swinging 4. Each pinching arm 2 · 3 is provided with a pair of first heating plate 7 and second heating plate 8 on the opposing surface near its upper end, and each heating plate 7 · 8 is provided inside each pinching arm 2 · 3 The first heater 9 and the second heater 10 corresponding to are disposed. In the present embodiment, although the pinching arm positioned on the right side in FIG. 2 is described as the first pinching arm 2, the pinching arm on the left side may be the first pinching arm 2.

  Both pinching arms 2 and 3 are openly biased by a return spring (not shown) and held in the open position shown in FIG. 2 in the free state. A closed posture in which the sandwiching surface 11 of the first heating plate 7 and the sandwiching surface 12 of the second heating plate 8 are in close contact with each other by grasping the sandwiching arms 2 and 3 in the open posture (two-dot chain line in FIG. 2) Can be shown in A drive current (electric power) is supplied to both heaters 9 and 10 or one of the heaters 9 and 10, with the two heating plates 7 and 8 or one of the heating plates 7 and 8 heated. By holding the hair between 11 and 12 and heating it while laying it toward the end of the hair, it is possible to straighten the crimped hair and the fury hair. In addition, the hair is sandwiched between the sandwiching surfaces 11 and 12 and the hair is squeezed toward the end while heating the iron main body 1 while rotating the iron main body 1 around the longitudinal (up and down) direction of the iron main body 1. Can be curled or waved.

  The first heating plate 7 and the second heating plate 8 are formed of a square box-shaped aluminum molded product whose inner surface side is opened, and as shown in FIG. 3, the sandwiching surfaces 11 and 12 of the respective heating plates 7 and 8 are upper and lower It is formed in a long rectangular shape in the direction (longitudinal direction of each pinching arm 2 · 3). The upper and lower length (long side length) H1 of the first heating plate 7 and the upper and lower length (long side length) H2 of the second heating plate 8 in the present embodiment are set to be the same. The longitudinal length (short side length) W1 of the plate 7 and the longitudinal length (short side length) W2 of the second heating plate 8 are set to be the same. Thus, the outer shapes of the facing surfaces of the first and second heating plates 7 and 8 are formed in substantially the same shape.

  Each of the first heater 9 and the second heater 10 is a PTC heater, and the second heater 10 is a PTC heater having a lower capacity than the PTC heater constituting the first heater 9. The front and back lengths of the first and second heaters are set to be the same, the top and bottom lengths of the first heater 9 are set slightly smaller than the first heating plate 7, and the top and bottom lengths of the second heater 10 are The length of the first heater 9 is set to about half. The first heater 9 is fixed to a plate surface on the inner surface side of the first heating plate 7, and is disposed over the entire surface in the longitudinal direction of the first heating plate 7. Thereby, the whole of the sandwiching surface 11 of the first heating plate 7 is heated substantially uniformly.

  In addition, the second heater 10 is fixed to the plate surface on the inner surface side of the second heating plate 8 and is disposed to face the plate surface on the upper end side (open end side) of the iron main body 1 of the second heating plate 8 ing. As a result, in the second heating plate 8, the upper end side region of the iron main body 1 in the sandwiching surface 12 is locally heated. Since the heat of the second heater 10 is conducted to the lower end side of the second heating plate 8, the lower end region of the sandwiching surface 12 is heated to a lower temperature than the upper end region. According to the second heater 10, local heating is possible as the heat transfer area between the second heating plate 8 and the second heater 10 decreases, so that the output current value of the external power supply 26 is relatively small, or Even if the second heater 10 is constituted by a low capacity PTC heater, the upper end side area of the iron body 1 of the second heating plate 8 can be sufficiently heated to the temperature required for the hair set. In addition, when the second heating plate 8 is locally heated, hair setting can be performed effectively without wasting the second heating plate 8 when the amount of hair to be hair-set is small. By heating the upper end side area of the iron main body 1 of the second heating plate 8, there is also an advantage that the iron main body 1 can be easily operated at the time of hair setting.

  An internal battery (internal power supply) 15 formed of a lithium ion secondary battery is disposed inside the first pinching arm 2, and the internal battery 15 is provided with a battery control circuit 16 that controls charging and discharging of the internal battery 15. ing. Inside the second pinching arm 3 is disposed a two-stage switchable (off / on) power switch 17 for switching the power supply state to both the heaters 9 and 10. It is operated by the slide knob 18 of the up-and-down slide type arrange | positioned on the left side of. The power supply switch 17 is formed of a three-circuit simultaneous switching switch including first to third switches 21-23. When the power switch 17 is in the off position by operating the slide knob 18, the first switch 21 and the second switch 22 are open, the third switch 23 is closed, and the power switch 17 is in the on position. At this time, the first switch 21 and the second switch 22 are closed, and the third switch 23 is open (see FIG. 1).

  The first heater 9 and the second heater 10 are provided from at least one of the built-in battery 15 provided in the iron main body 1 and the external power supply 26 connected to the iron main body 1 via the feeding cable 27. It is comprised so that it can drive with the supplied electric power. In the hair iron of the present embodiment, an external power supply 26 in which the first heater 9 is driven by the power of the built-in battery 15 provided in the iron main body 1 and the second heater 10 is connected to the iron main body 1 via the feeding cable 27. It is configured to be driven by the power of

  The feed cable 27 has a connection terminal on the external power supply 26 side configured by a USB connector (male terminal) of USB (Universal Serial Bus) standard, and a connection terminal on the iron main body 1 side coaxially has positive and negative electrodes coaxially ( Male terminal). At the lower end of the first pinching arm 2, a feeding socket 28 (female terminal) corresponding to the coaxial connector of the feeding cable 27 is provided. As shown in FIG. 2, the USB connector is connected to the output terminal (female terminal) of the external power supply 26, and the coaxial connector is connected to the feeding socket 28 so that the power of the external power supply 26 is ironed through the feeding cable 27. It can be supplied to one. The external power supply 26 in FIG. 2 indicates a mobile battery. Although not shown, the power supply socket 28 incorporates a protection circuit for controlling the input current value, and the protection circuit converts the supply current value of the power input from the external power supply 26 into, for example, 1 A. There is.

  As described above, by adopting a USB connector as the connection terminal on the external power supply 26 side, for example, a power adapter connectable to a commercial battery provided with a mobile battery, a USB terminal provided in a personal computer, or a USB output terminal It can be used as an external power supply 26. In addition, the connection terminal by the side of the iron main body 1 can employ | adopt the connector comprised by the existing connector specification other than a coaxial connector, or the exclusive connector provided with a positive electrode and a negative electrode. When the connector standard of the connection terminal is changed, the power supply socket 28 corresponding to the connector standard of the connection terminal is mounted on the iron main body 1.

  Inside the iron main body 1, a first power supply line 31 composed of a lead wire for supplying the power of the internal battery 15 to the first heater 9 is provided. Specifically, the first power supply line 31 includes a first positive electrode line 32 connecting the positive electrode of the internal battery 15 and one terminal of the first heater 9, and the negative electrode of the internal battery 15 and the other terminal of the first heater 9. It is comprised by the 1st negative electrode line 33 to connect. The first switch 21 is connected to an intermediate portion of the first negative electrode line 33, and the power supply state of the first heater 9 is switched by opening and closing the first switch 21.

  In addition, inside the iron main body 1, a second power supply line 34 composed of a lead wire for supplying power of the external power supply 26 to the second heater 10 is provided. Specifically, the second feed line 34 includes a second positive line 35 connecting the positive pole of the feed socket 28 and one terminal of the second heater 10, the negative pole of the feed socket 28 and the other terminal of the second heater 10 It is comprised by the 2nd negative electrode line 36 to connect. The second switch 22 is connected to the middle part of the second negative electrode line 36, and in the state where the external power supply 26 is connected, the power supply state of the second heater 10 is switched by opening and closing the second switch 22. .

  The external power supply 26 and the built-in power supply 15 are set such that the built-in battery 15 is charged by the power of the external power supply 26 in a state where the external power supply 26 is connected to the iron main body 1 and both heaters 9 and 10 are inactivated. And a charging line 37 consisting of a lead wire connecting in series. Specifically, the charge line 37 includes a positive electrode charge line 38 connecting the first positive electrode line 32 and the second positive electrode line 35, a first negative electrode line 33 between the internal battery 15 and the first switch 21, and an external power supply. A negative electrode charging line 39 connecting the second negative electrode line 36 between the second switch 26 and the third switch 23 and a first positive electrode line 32 and a second positive electrode line 35 are provided. The third switch 23 is connected to an intermediate portion of the negative electrode charging line 39, and the supply of power to the internal battery 15 is controlled by opening and closing the third switch 23.

  The supply current value of the power input to the second feed line 34 and the charge line 37 is limited (for example, 1 A) by the protection circuit incorporated in the feed socket 28. However, in the case of the built-in battery 15 formed of a lithium ion secondary battery, the maximum supply current value is 4 A, so the first feed line 31 has a higher allowable current than the second feed line 34 and the charge line 37 (conductor Lead wire) is used.

  As described above, the internal battery 15 is disposed inside the first pinching arm 2 provided with the first heater 9 driven by the power of the internal battery 15, and the second heater 10 driven by the power of the external power supply 26. The power supply switch 17 for switching the power supply state to both the heaters 9 and 10 and the power supply socket 28 to which the power supply cable 27 is connected are disposed in the second pinching arm 3 provided with the. According to this, as shown in FIG. 1, while arranging the power switch 17 and the built-in power supply 15 in the iron main body 1 in a well-balanced manner, the swing connecting the first pinching arm 2 and the second pinching arm 3 The number of leads of the first feed line 31 and the second feed line 34 passing through the shaft 4 can be three. The built-in power supply 15 and the power supply switch 17 can be arranged, for example, in the form shown in FIG. 4 described later, but in that case, the number of lead wires passing through the rocking shaft 4 is four. As described above, since the number of lead wires passing through the swinging shaft 4 can be reduced, the wiring of the lead wires and the assembly of the internal structure can be facilitated, and the productivity of the hair iron can be improved. Further, by avoiding the internal structure of the hair iron from being biased to either one of the sandwiching arms 2.3, it is possible to eliminate the weight of the hair iron at the time of hair setting.

  If the slide knob 18 is slid upward to switch the power switch 17 to the on position while the external power supply 26 is not connected and the built-in battery 15 has sufficient power, the first and second switches 21 and 22 are turned on. In the closed state, the third switch 23 is opened, and the power of the built-in battery 15 is supplied to the first heater 9 through the first feed line 31, and the first heating plate 7 is heated. When the use of the built-in battery 15 is continued and the power of the built-in battery 15 is lowered, the drive current is not supplied to the first heater 9 and the heating of the first heating plate 7 is stopped. In this state, by connecting the output terminal of the external power supply 26 and the power supply socket 28 with the power supply cable 27, the power of the external power supply 26 is supplied to the second heater 10 via the second power supply line 34, and the second heating plate 8 is heated. When the external power supply 26 is connected to the iron main body 1 in a state where the built-in battery 15 has sufficient electric power, both the first and second heating plates 7 and 8 are heated. As described above, according to the hair iron of the present embodiment, the hair can be easily set by the power of the built-in battery 15 even when the user is out. If it is desired to perform hair setting in a full scale with both heating plates 7 and 8 heated, a commercial power supply at home may be used as the external power supply 26. In addition, if the mobile battery is carried when going out, it becomes possible to heat both the heating plates 7 and 8 and carry out a full-scale hair setting even when going out.

  When the power switch 17 is switched to the off position while the external power supply 26 is connected, the first and second switches 21 and 22 are opened, and the supply of drive current to both the heaters 9 and 10 is stopped. At this time, since the third switch 23 is closed, the external power supply 26 and the built-in battery 15 are connected in series via the charging line 37, and the power of the external power supply 26 is supplied to the built-in battery 15. The internal battery 15 is charged by the supply of the power. The charging operation of the built-in battery 15 is controlled by the battery control circuit 16, and when the built-in battery 15 is fully charged, the battery control circuit 16 stops the charging operation of the built-in battery 15.

Second Embodiment FIG. 4 shows a second embodiment in which the arrangement of the internal battery 15 and the power switch 17 is changed. There, the power switch 17 is disposed inside the first pinching arm 2 in which the first heater 9 is disposed, and the built-in battery 15 is disposed in the second pinching arm 3 in which the second heater 10 is disposed. As in the present embodiment, when the power switch 17 is disposed on the first pinching arm 2 and the internal battery 15 and the feeding socket 28 are disposed on the second pinching arm 3, the first feeding line 31 and the second feeding line 34 are powered. Since it is necessary to wire to the switch 17, the number of the lead wires passing through the rocking shaft 4 is increased to four, so that the internal structure of the iron body 1 can not be avoided to be somewhat complicated. The other components are the same as those of the first embodiment, so the same reference numerals are given to the same members and the description thereof will be omitted. The same applies to the following description.

Third Embodiment FIG. 5 shows a third embodiment in which the arrangement of the internal battery 15 and the power switch 17 is further changed. There, the internal battery 15 and the power switch 17 were disposed inside the second pinching arm 3. As in the present embodiment, when the built-in battery 15, the power switch 17, and the feeding socket 28 are collectively arranged, only the first feeding line 31 may be wired from the second pinching arm 3 to the first pinching arm 2 This is advantageous in that the number of leads passing through the swinging shaft 4 can be minimized. However, since the internal structure is collectively arranged inside the second pinching arm 3, it is inevitable that the internal structure is complicated. In addition, the balance of the iron main body 1 is broken, and there is a possibility that the hair iron may be carried and heavy at the time of hair setting.

  In the hair iron of each of the above embodiments, the first heater 9 is driven only by the power of the built-in battery 15, and the second heater 10 is driven by the power of the external power supply 26 in a state where the external power supply 26 is connected to the iron main body 1. Only configured to drive. According to such a hair iron, since the built-in battery 15 only supplies power to the first heater 9, consumption of the built-in battery 15 can be suppressed as compared to the case where power is supplied to both the heaters 9 and 10. . In addition, even when the power of the built-in battery 15 is lowered, the second heating plate 8 can be heated by supplying power to the second heater 10 by connecting the external power supply 26. As described above, according to each of the above-described embodiments, it is possible to set the hair for a long time by the built-in battery 15, and continue the hair set by connecting the external power supply 26 even when the power of the built-in battery 15 is reduced. Can be done. In addition, since a simple circuit configuration can be adopted in which the built-in battery 15 and the first heater 9 and the external power supply 26 and the second heater 10 are connected one to one, there is an advantage that the internal structure of the hair iron can be simplified. . Note that if the external power supply 26 is connected while there is sufficient power to the internal battery 15, both the first heater 9 and the second heater 10 can be heated, so the hair sandwiched between both heating plates 7 and 8 can be quickly heated to an appropriate temperature. It can be heated and the time required for hair setting can be shortened.

  If the supply current value supplied from the external power supply 26 to the second heater 10 is set smaller than the supply current value supplied from the internal battery 15 to the first heater 9, the output current value is smaller than that of the commercial power supply. A battery or the like can be used as the external power supply 26. As a result, even if the output current value of the external power supply 26 is relatively small, the second heating plate 8 can be heated, and accordingly, the connectable external power supply 26 can be diversified to make the hair iron excellent in versatility. it can.

  When the external power supply 26 is connected to the iron main body 1 and both heaters 9 and 10 are not in operation, the external power supply 26 and the built-in battery 15 are connected in series to switch to the external power supply 26. The internal battery 15 is charged by the power of According to this, it is possible to charge the built-in battery 15 and prepare for the next use only by connecting the external power supply 26 when the hair iron is not in use. Since it is not necessary to separately provide a charging socket or the like for the internal battery 15, the structure of the hair iron can be further simplified, and the appearance design of the hair iron can be further improved.

Fourth Embodiment FIG. 6 shows a fourth embodiment in which the shape of the second heating plate 8 is changed. There, the short side length W2 of the second heating plate 8 was set smaller than the short side length W1 of the first heating plate 7. According to this, the heat capacity of the second heating plate 8 is reduced, and the output current value of the external power source 26 is relatively small, or the second heater 10 is formed of a low capacity PTC heater. Also, since the entire second heating plate 8 can be heated to the temperature required for the hair set, the hair set can be performed accurately.

Example 5 FIG. 7 shows Example 5 in which the structure of the second heating plate 8 is changed. There, the second heating plate 8 is constituted by two unit plates 42, 42 of the same shape which are arranged adjacent to each other with a gap in the longitudinal direction. The second heater 10 is disposed on the unit plate 42 positioned on the upper end side (open end side) of the iron main body 1. Spacers 43 are filled in the gaps between the unit plates 42 and 42, and the surfaces of the unit plates 42 and 42 and the spacers 43 are formed flush. The spacer 43 is preferably formed of a material that is rich in heat insulation and does not deform when the hair is sandwiched between the sandwiching surfaces 11 and 12. For example, a hard plastic material or a hard foamed plastic material can be mentioned.

  According to the second heating plate 8 as described above, only the unit plate 42 in which the second heater 10 is disposed is heated, so the temperature of the second heating plate 8 due to the heat conduction to the other unit plates 42 A drop can be suppressed, and a portion of the second heating plate 8 can be reliably heated to a temperature required for the hair set. In addition, since each unit plate 42 has a small heat capacity, the second power source 26 may have a relatively small output current value, or even if the second heater 10 is formed of a low-capacity PTC heater, the second The entire unit plate 42 in which the heater 10 is disposed can be heated to the temperature required for the hair set.

  In addition, when there is a gap between the unit plates 42, 42, when the hair is sandwiched by both the heating plates 7 and 8, the hair located in the gap can not be sandwiched. However, if the space between the unit plates 42 and 42 is filled with the spacer 43 and the unit plates 42 and 42 and the surface of the spacer 43 are formed flush, the entire heating plates 7 and 8 sandwich the hair uniformly. It is possible to prevent the generation of hair parts where hair setting is not performed. Further, when the spacer 43 is formed of a highly heat-insulating material, the heat can be prevented from being conducted to the adjacent unit plate 42 through the spacer 43, so that the unit plate 42 in which the second heater 10 is disposed is a hair set. It is possible to precisely maintain the required temperature.

  In the fifth embodiment, although the second heating plate 8 is configured by two unit plates 42, the second heating plate 8 can be configured by three or more unit plates 42. In this case, the spacers 43 are filled in the respective gaps. When the second heating plate 8 is configured by more unit plates 42, the second heaters 10 may be individually disposed on the plurality of unit plates 42 positioned on the tip end side of the second sandwiching arm 3. The vertical length of the unit plate 42 may be different.

Sixth Embodiment FIG. 8 shows a sixth embodiment in which the drive mode of the first and second heaters 9 and 10 is changed. There, when the external power supply 26 is not connected to the iron main body 1, both the first and second heaters 9 and 10 are driven by the power of the built-in battery 15, and the external power supply 26 is connected to the iron main body 1. In this state, both the first and second heaters 9 and 10 are driven by the power of the external power supply 26. Two built-in batteries 15 connected in series are disposed in the first pinching arm 2, and a power switch 17 and a power feeding socket 28 are disposed in the second pinching arm 3. The first and second heaters 9 and 10 are composed of PTC heaters of the same capacity.

  The power switch 17 of this embodiment is a three-stage switching type (off / on 1 / on 2), and comprises a two-circuit simultaneous switching switch composed of an upstream switch 50 and a downstream switch 51. When the power switch 17 is in the off position by operating the slide knob 18, the upstream switch 50 is in the closed state, the downstream switch 51 is in the open state, and when the power switch 17 is in the on 1 position, both switches When the power switch 17 is in the ON 2 position, the upstream switch 50 is open and the downstream switch 51 is closed (see FIG. 8).

  The first and second heaters 9 and 10 are composed of a first parallel line 52 connecting one ends of both heaters 9 and 10 and a second parallel line 53 connecting the other ends of both heaters 9 and 10. Connected in parallel. The first parallel line 52 and the positive electrode of the built-in battery 15 are connected by the built-in side positive electrode line 54, and the second parallel line 53 and the negative electrode of the built-in battery 15 are connected by the built-in side negative electrode line 55. The previous power switch 17 is connected in series to the middle of the built-in side positive electrode line 54. The positive electrode of the power supply socket 28 is connected to the built-in side positive electrode line 54 between the upstream switch 50 and the downstream switch 51 by the external side positive electrode line 56, and the negative electrode of the power supply socket 28 is the internal negative electrode by the external side negative electrode line 57 Connected to line 55.

  If the slide knob 18 is slid upward and the power switch 17 is switched to the ON 1 position with the external power supply 26 not connected, both switches 50 and 51 are closed, and the built-in side positive electrode line 54, built-in side negative electrode The power of the built-in battery 15 is supplied to both the heaters 9 and 10 via the line 55 and both parallel lines 52 and 53, and the first and second heating plates 7 and 8 are heated. Further, in a state where the output terminal of the external power source 26 and the feeding socket 28 are connected by the feeding cable 27, sliding the slide knob 18 upward to switch the power switch 17 to the ON 2 position, the upstream switch 50 is opened. The downstream switch 51 is closed, and the power of the external power supply 26 is supplied via the external positive electrode line 56 and the external negative electrode line 57, both parallel lines 52 and 53, the internal positive electrode line 54 and the internal negative electrode line 55. The first and second heating plates 7 and 8 are heated by being supplied to both the heaters 9 and 10.

  When the external power supply 26 is connected when the power switch 17 is in the off position, the external power supply 26 is connected via the external positive electrode line 56 and the internal positive electrode line 54 and the external negative electrode line 57 and the internal negative electrode 55. Electric power is supplied to the built-in battery 15, and the built-in battery 15 is charged by the supply of the power. In the present embodiment, when the power supply switch 17 is switched to the ON 1 position in a state where the built-in battery 15 has sufficient electric power and the external power supply 26 is connected to the iron main body 1, And, a driving current is supplied to the second heater 9 · 10. Therefore, each of the lines 52 to 57 is formed of a lead wire having a large allowable current.

  In the sixth embodiment, the first and second heaters 9 and 10 are constituted by PTC heaters having the same volume, but the first and second heaters 9 and 10 can be constituted by PTC heaters having different capacities. Since the first and second heaters 9 and 10 are connected in parallel, and each of the lines 52 to 57 is constituted by a lead wire having a large allowable current, an external power supply 26 having a relatively large supply current value may be connected. It is possible.

  As described above, in the hair iron of each of the above embodiments, in the state where the external power supply 26 is not connected to the iron main body 1, both the first and second heaters 9 and 10, or any one of the heaters 9. Is driven by the power of the built-in battery 15 and the external power supply 26 is connected to the iron main body 1, both the first and second heaters 9 and 10 or the other not driven by the power of the built-in battery 15. The heater 10 was configured to be driven by the power of the external power supply 26. According to the hair iron thus configured, it is possible to perform hair setting using the power of the internal battery 15 without the need to connect the external power supply 26 in a state where the internal battery 15 has sufficient power. By connecting the external power supply 26, it is also possible to perform hair setting using the power of both the built-in battery 15 and the external power supply 26. In addition, in a state where the power of the built-in battery 15 is reduced, the external power supply 26 can be connected, and the power of the external power supply 26 can be used to perform hair setting. As described above, according to each of the above embodiments, the first and second heaters 9 and 10 can be driven by the power of the connected external power supply 26 in addition to the power of the built-in battery 15. Even when the power of 15 drops, it can be a hair iron that can perform hair setting continuously without interruption.

  The hair iron of each of the above embodiments is excellent in portability because the built-in power supply 15 built in the iron body 1 drives both the first and second heaters 9 and 10 or one of the heaters 9. It can be suitably used for hair sets in the prior art. Besides the above embodiment, the built-in power supply 15 may be a primary battery, and in this case, the built-in power supply 15 is built in the first pinching arm 2 in a replaceable manner. The first and second heaters 9 and 10 may be configured by ceramic heaters, sheathed heaters, Peltier devices, etc., in addition to the PTC heaters. The feed line connecting the internal structure such as the built-in power supply 15, the power switch 17, the feed socket 28, etc. is not limited to the form described in the embodiment. The external power supply 26 may be a USB terminal included in a personal computer, or an AC adapter that can be plugged into a commercial power supply and can output a DC power supply. The feeding cable 27 can adopt a USB cable configured with a USB standard connector at both ends. A large number of such feed cables 27 are commercially available and are easily available at low cost. Further, for example, a USB cable for connecting a personal computer and a digital camera can be diverted as the feeding cable 27 for supplying the electric power of the external power supply 26 to the iron main body 1.

DESCRIPTION OF SYMBOLS 1 iron main body 2 1st pinching arm 3 2nd pinching arm 4 rocking shaft 7 1st heating plate 8 2nd heating plate 9 1st heater 10 2nd heater 15 built-in power supply (built-in battery)
26 external power supply 27 feeding cable 31 first feeding line 34 second feeding line 37 charging line 42 unit plate 43 spacer H1 long side length of first heating plate H2 long side length of second heating plate W1 of first heating plate Short side length W2 Short side length of second heating plate

Claims (9)

It has an iron main body (1) provided with a first pinching arm (2) and a second pinching arm (3) connected so as to be able to swing open and close by a swinging shaft (4),
A first heating plate (7) and a second heating plate (8) are provided on the opposing surface of each sandwiching arm (2.3),
A hair iron in which a first heater (9) and a second heater (10) corresponding to each heating plate (7, 8) are disposed inside each sandwiching arm (2, 3),
The first heater (9) and the second heater (10) are a built-in power supply (15) provided on the iron body (1) and an external power supply (15) connected to the iron body (1) via the feeding cable (27). 26) is configured to be driven by the power supplied from at least one of the power supplies (15, 26),
When the external power supply (26) is not connected to the iron main body (1), both of the first and second heaters (9 and 10) or any one of the heaters (9) Driven by electricity
When the external power supply (26) is connected to the iron body (1), both the first and second heaters (9 and 10) or the other heater not driven by the power of the built-in power supply (15) 10) A hair iron characterized in that it is driven by the power of an external power supply (26).   While the first heater (9) is driven only by the power of the built-in power supply (15) and the external power supply (26) is connected to the iron body (1), the second heater (10) is the power of the external power supply (26) The hair iron according to claim 1, wherein the hair iron is configured to be driven by only one.   The power supply value supplied from the external power supply (26) to the second heater (10) is set smaller than the supply current value supplied from the built-in power supply (15) to the first heater (9). Hair iron described. The built-in power supply (15) consists of a secondary battery,
A first feed line (31) for supplying power of the built-in power supply (15) to the first heater (9), and a second feed line (34) for supplying power of the external power supply (26) to the second heater (10). And a charging line (37) for supplying power from the external power supply (26) to the built-in power supply (15),
With the external power supply (26) connected to the iron body (1) and both heaters (9 and 10) stopped operating, the external power supply (26) and the built-in power supply (15) connect the charging line (37) The hair iron according to claim 2 or 3, wherein the internal power supply (15) is configured to be charged with the power of the external power supply (26) by switching to a state of being connected in series via the). A built-in power supply (15) is disposed inside the first pinching arm (2) where the first heater (9) is provided,
Inside the second pinching arm (3) provided with the second heater (10), a power switch (17) and a feeding cable (27) for switching the feeding state to the first heater (9) and the second heater (10) 5. A hair iron as claimed in any one of claims 2 to 4, characterized in that a feed socket (28) to which is connected is arranged. The outer shapes of the opposing surfaces of the first heating plate (7) and the second heating plate (8) are formed substantially in the same shape long in the longitudinal direction of the sandwiching arms (2 and 3),
The first heater (9) is disposed over the entire surface in the longitudinal direction of the first heating plate (7),
The hair iron according to any one of claims 1 to 5, wherein the second heater (10) is disposed to face the plate surface of the open end side of the iron body (1) of the second heating plate (8). The second heating plate (8) is composed of at least two unit plates (42, 42) disposed adjacent to each other with a gap in the longitudinal direction of the second heating plate (8),
The hair iron according to claim 6, wherein the second heater (10) is disposed on the unit plate (42) located on the open end side of the iron body (1). The space between the unit plates (42, 42) is filled with a highly heat insulating spacer (43),
The hair iron according to claim 7, wherein surfaces of the unit plates (42, 42) and the spacer (43) are formed flush. The outer shape of the opposing surface side of the first heating plate (7) and the second heating plate (8) is formed in a rectangular shape elongated in the longitudinal direction of each sandwiching arm (2.3),
The long side length (H1) of the first heating plate (7) and the long side length (H2) of the second heating plate (8) are set substantially the same, and the short side length of the second heating plate (8) The hair iron according to any one of claims 1 to 5, wherein the length (W2) is set smaller than the short side length (W1) of the first heating plate (7).

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