JPH0137922B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a hair setting device, and more particularly, to a hair setting device, the present invention relates to a hair setting device, and more specifically, hair is wrapped around a winding drum and heated by a heater disposed on the winding drum to create curly curls in the hair. The present invention relates to a hair setting device that provides hair styling.

[Background Art] Generally, this type of hair setting device has a heater 2 housed inside a winding drum 1 around which hair is wound, as in the invention disclosed in Japanese Patent Application Laid-open No. 57-14305 shown in FIG. The hair is heated by the heater 2 while the hair is wound around the surface of the winding drum 1, thereby imparting a curl to the hair. By the way, since such a hair set device uses a commercial power source as a power source for the heater 2, a power cord is required, and there is a problem in that it takes up a large amount of storage space when used as a portable device for traveling. For this reason, it is conceivable to use a battery as a power source to eliminate the need for a power cord, but considering economic efficiency, it is desirable to use a secondary battery. When using a secondary battery, a charging circuit is provided to charge the secondary battery, and it is necessary to step down and rectify the commercial power supply connected to the charging circuit through the plug blade and supply it to the secondary power supply. In addition, when a battery is used as a power source, the output of the power source is small, so in this application,
A structure is disclosed in which the heater 2 is exposed on the surface of the winding drum 1 so that the heat of the heater 2 is efficiently transmitted to the hair. If the heater 2 is exposed on the surface of the winding drum 1 in this way and the hair set device is charged while it is in use, the heater will be directly connected to the high voltage side of the commercial power source, creating the risk of electric shock. In particular, in order to miniaturize this type of hair styling device, a non-insulated transformer is used to step down the voltage of the commercial power supply, which increases the risk of electric shock.

[Object of the Invention] The present invention has been made in view of the above points, and its main purpose is to prevent electric shock by preventing charging while the hair set device is in use. The purpose is to prevent danger.

[Disclosure of the Invention] Hereinafter, embodiments of the present invention will be described based on the drawings. The hair setting device according to the present invention is basically a hair setting device that winds the hair around a winding drum 1 and heats the hair with a heater 2 disposed on the winding drum 1, thereby imparting a curl to the hair. The heater 2 is arranged so as to be exposed on the surface of the winding drum 1, and the winding drum 1 is detachably attached to the tip of a housing 10 in which a secondary battery 11 serving as a power source for the heater 2 is housed. Inside the housing 10 is a charging circuit 12 that steps down the voltage of the commercial power source and supplies charging current to the secondary battery 11.
The charging circuit 12 is equipped with a non-insulated transformer 23 that steps down the voltage of the commercial power source, and a plug blade 14 for connecting the charging circuit 12 to the commercial power source is provided protruding from the tip of the housing 10. Either one of a pin plug 32 and a pin socket 18 is provided for electrically connecting the secondary battery 11 and the heater 2 when the body 1 is coupled to the housing 10.
The other is provided on the winding drum 1, and is characterized in that the connection between the pin plug 32 and the pin socket 18 and the connection of the stopper blade 14 to the commercial power source are made selectively.

In this embodiment, the storage position where the plug blade 14 protrudes along the axial direction of the winding drum 1 when the winding drum 1 is connected to the housing 10, and the connection position where the plug blade 14 projects in a direction intersecting the axial direction of the winding drum 1 are shown. In the stored position, the winding drum 1 is connected to the housing 10 and the pin plug 32 and pin socket 18 are connected, and in the connected position, the winding drum 1 is connected to the plug blade 14. The pin plug 3 is prevented from being connected to the housing 10 by being locked.
2 and the pin socket 18 are not connected. As shown in FIGS. 3 and 4, the hair setter has a winding drum 1 removably attached to one end in the axial direction of a generally cylindrical housing 10 in which a secondary battery 11, a charging circuit 12, etc. are housed. It is something that has been done,
A heater 2 whose power source is a secondary battery 11 is disposed on the winding drum 1 . Two secondary batteries 11 are connected in series and housed in the housing 10 at the rear end in the axial direction, and a charging circuit 12 is installed in front of the secondary batteries 11.
is stored. A switch 13 is disposed at approximately the same position as the charging circuit 12 in the axial direction of the housing 10, and a plug blade 14 is disposed further forward of the charging circuit 12. At a position corresponding to the plug blade 14, a light emitting diode 24, which lights up while the secondary battery 11 is being charged, is provided so as to be exposed on the surface of the housing 10. The rear end of the plug blade 14 is pivotally attached to a rotating shaft 15 of an insulator provided integrally within the housing 10. The distal end portion is arranged so as to be able to rise and fall freely between a position where the tip portion protrudes from the side surface of the front end portion of the housing 10. Bung blade 1
4 is electrically connected via a wave washer 7 to a receiving plate 16 into which the rotating shaft 15 is inserted together with the plug blade 14, and this receiving plate 16 is electrically connected to the charging circuit 12 via a connecting wire 17. . The terminals of the secondary battery 11 are connected to a charging circuit 12 as described later, and one of the terminals is connected to a pair of pin sockets arranged at the front end of the housing 10 via the switch 13 and opened to the front. 18, and the other terminal is connected to the other pin socket 18. In the figure, 8 is a switch handle, and 9 is an accent cover.

The winding drum 1 is formed in the shape of a brush, with a large number of bristle-like winding members 3 protruding from the surface of a cylindrical base 4 made of a low thermal conductivity material such as a synthetic resin molding material. As shown in FIG. 2, the rear end in the axial direction is fitted into a connecting portion 19 provided at the front end of the housing 10 so as to be detachable from the housing 10. A cap portion 31 that is open to the rear is formed. Inside the cap portion 31, a pair of pin plugs 32 are protruded toward the rear in correspondence with the pin sockets 18 provided in the housing 10, and when the winding drum 1 is attached to the housing 10, each pin plug 32 Each is inserted into a pin socket 18. The connecting portion 19 of the housing 10 has a tenth
As shown in the figure and FIG. 11, the guide protrusion 33
As shown in FIG. 2, a guide groove 34 is formed on the inner surface of the cap portion 31 of the winding drum 1 and extends in the front-rear direction, and the guide groove 34 engages with the guide protrusion 33. By this, pin socket 1
8 and the pin plug 32 are positioned. Further, a fitting groove 38 is formed in one place on the peripheral wall of the cap part 31, and a rib 39 corresponding to the fitting groove 38 is formed in the connecting part 19 of the housing 10 in a shape that projects forward. When the housing 10 and the winding drum 1 are coupled, the fitting groove 38 and the rib 39 engage with each other, thereby preventing the winding drum 1 from rotating relative to the housing 10. Cap part 31
A main body part 36 on which hair is wound is provided in front of the body part 36, and a large number of winding members 3 are regularly protruded from the main body part 36. One wrapping member 3 is formed into a bristly shape with a locking ball portion 41 provided at the tip of a shaft portion 42, and when the main body portion 36 is rotated around the axis, hair is attached to the wrapping member. 3, the hair is held by the locking ball part 41 and becomes entangled with the main body part 36. An end cap 37 made of a soft material is fixed to the front end of the main body 36 so that the corners of the main body 36 do not come into contact with the head when the winding drum 1 is brought into contact with the head. A heater 2 is disposed on the surface of the base 4 in the main body 36 of the winding drum 1 . Since the base 4 has low thermal conductivity, the heat of the heater 2 is rarely transferred to the base 4 and radiated, and the temperature of the heater 2 does not drop. As shown in FIG. 9, the heater 2 is formed by arranging a plurality of heat generating elements 43 at approximately equal intervals along the circumferential direction on the outer peripheral surface of the base 4 in the main body 36, and each heat generating element 43 It is formed of a plate made of a material with high electrical resistance, such as iron nickel, in a shape that runs approximately in a straight line over approximately the entire length in the longitudinal direction on the base 4, and is electrically connected to the pin plug 32. Each winding member 3 is provided to protrude from between a pair of adjacent heating elements 43. When this winding drum 1 is inserted into the housing 10 and energized, and the housing 10 is rotated around its axis, the hair is wound around the winding drum 1 and at the same time it is heated, giving the hair a curly texture. It is something.

By the way, as shown in FIGS. 3 and 4, the rear end of the main body of the winding drum 1 opens rearward and communicates with the cavity inside the winding drum 1, and is connected to a plug provided in the housing 10. As shown in FIG. 10, by inserting the winding drum 1 into the housing 10 when the blade 14 is protruding from the front end of the housing 10, the blade 14 is housed in the cavity of the winding drum 1. It's getting old. On the other hand, when the blade 14 is folded down and the blade 14 protrudes from the side surface of the front end of the housing 10, as shown in FIG.
Even if the pin plug 32 is inserted into the pin socket 18
The heater 2 is not inserted into the heater 2, so that power is not supplied to the heater 2 from the secondary battery 11 as a power source.
As described above, when hair is set by inserting the winding drum 1 into the housing 10, the secondary battery 11 is not charged, and the winding drum 1 is not inserted during charging, and the heater is turned off during charging. This prevents the risk of heating.

The charging circuit 12 housed within the housing 10 will be described in more detail below. Charging circuit 1
2, as shown in FIG. 12, is constructed by disposing a fuse 21, a diode bridge 22, a pulse transformer 23, a light emitting diode 24, a reverse current blocking diode 25, a switching transistor 26, and an emitter resistor 27 on a mounting board 28. be done. A pair of plug blades 14 disposed at the front end of the housing 10 are connected to input ends of a diode bridge 22 via fuses 21, respectively.
The positive output terminal of the output terminals of 2 is the pulse transformer 2.
It is connected to the high voltage side terminal of the primary coil 3, and the negative output terminal becomes the ground line of the charging circuit 12. The low voltage side terminal of the primary coil of the pulse transformer 23 is connected to the collector of the switching transistor 26,
The base of this switching transistor 26 is connected to the low voltage side terminal of the secondary coil of the pulse transformer 23. In addition, the switching transistor 26
A light emitting diode 24 is inserted in the forward direction between the base of the switching transistor 26 and the ground line, and an emitter resistor 27 is interposed between the emitter of the switching transistor 26 and the ground line. The high-voltage side terminal of the secondary coil of the pulse transformer 23 is connected to the positive terminal of the secondary battery 11 via a forward-connected backflow blocking diode 25. Therefore, the pulse transformer 23 becomes a non-insulating transformer. The negative terminal of the secondary battery 11 is of course connected to the ground line. With the above configuration, when the charging circuit 12 is connected to a commercial power source through the plug blade 14, the light emitting diode 24 lights up to indicate that charging is in progress, and the voltage stepped down by the pulse transformer 23 is transferred to the secondary battery 11. is applied to Since the backflow blocking diode 25 is connected in the opposite direction to the secondary battery 11, the charge stored in the secondary battery 11 will not flow back to the charging circuit 12. The positive terminal of the secondary battery 11 is connected to one pin socket 18 via a switch 13, and the other pin socket 18 is connected to a ground line. The pin plug 32 is detachably connected to the pin socket 18 as described above, and the heater 2 is connected to the pin plug 32, so that the housing 1
When the switch 13 is turned on with the winding drum 1 connected to the 0, the charge stored in the secondary battery 11 is supplied to the heater 2, and the heater 2 generates heat. Further, as described above, the state in which the winding drum 1 is inserted into the front end of the housing 10, that is, the heater 2
When the plug blade 14 can be energized, the plug blade 14 is housed in the winding drum 1 to prevent charging, so even if the charging circuit 12 has the above configuration, the heater 2 is in contact with the head. In some cases, the high voltage side of the commercial power supply and the heater 2 are not connected through the ground line, and there is no risk of electric shock even though the heater 2 is exposed on the surface of the winding drum 1.

In the above example, the winding member 3 was protruded from the surface of the winding drum 1, and the winding drum 1 was shaped like a brush. However, as a hair setter, as shown in FIG. The winding drum 1 is equipped with a holding plate 48 that can be opened and closed between a position where the front end touches the winding drum 1 and a position away from the winding drum 1 using the rear end of the winding drum 1 as a fulcrum. Good too. This winding drum 1 is provided with an open/close button 49 at the rear end of the winding drum 1, and in response to the operation of this open/close button 49, the presser plate 48
is opened and closed. The heater 1 is disposed on the surface of the main body 36 of the winding drum 1, and by wrapping the hair around the main body 36 with the hair sandwiched between the main body 36 and the pressing plate 48, the hair is heated by the heater 2. It can be heated to give it a curl.

[Effects of the Invention] As described above, in the present invention, the heater is disposed in such a manner that it is exposed on the surface of the winding drum, and the winding drum is detachably attached to the tip of the housing in which the secondary battery that serves as the power source for the heater is housed. The housing houses a charging circuit that steps down the voltage of the commercial power source and supplies charging current to the secondary battery.The charging circuit is equipped with a non-isolated transformer that steps down the voltage of the commercial power source. has a protruding plug blade for connecting the charging circuit to a commercial power supply, and a pin plug and pin socket for electrically connecting the secondary battery and the heater when the winding drum is combined with the housing. One of the pin plug and the pin socket is provided on the winding drum, and the plug blade is located at a storage position where it projects along the axial direction of the winding drum when the winding drum is connected to the housing. , and a connecting position protruding in a direction intersecting the axial direction of the winding drum, so that it can be raised and lowered freely, and in the storage position, the winding drum is connected to the housing, the pin plug and the pin socket are connected, and the connection is made. At this position, the winding drum is locked to the plug blade, preventing it from being connected to the housing, and the pin plug and pin socket are disconnected, so that the pin plug and pin socket are connected and the plug blade is connected to the commercial power source. The advantage is that charging is not performed while the hair styling device is in use, and the risk of electric shock due to connection between the high voltage side of the commercial power source and the heater during charging can be prevented. It has the following.
Furthermore, since the heater is removed during charging, the charging current will not be discharged even if the switch is on, allowing efficient charging.

[Brief explanation of drawings]

Fig. 1 is a sectional view showing a conventional example, Fig. 2 is a perspective view of an embodiment of the present invention with the winding drum removed from the housing, Fig. 3 is a partially cutaway plan view of the same, and Fig. 4 is Figure 5 is a front view of the same as above, Figure 6 is a sectional view taken along line X-X in Figure 4, Figure 7 is a sectional view taken along line Y-Y in Figure 4, Figure 8 is Z- in Figure 4
A cross-sectional view taken along the Z line; FIG. 9 is a cross-sectional view taken along the U-U line in FIG.
10 and 11 are perspective views showing the operation of the plug blade used in the above, FIG. 12 is a circuit diagram showing an example of the charging circuit used in the same, and FIG. 13 is a diagram showing another embodiment of the present invention. FIG. 1 is a winding drum, 2 is a heater, 10 is a housing, 1
1 is a secondary battery, 14 is a plug blade, 18 is a pin socket, and 32 is a pin plug.

Claims (1)

[Scope of Claims] 1. A hair setting device that winds hair around a winding drum and heats the hair with a heater disposed on the winding drum to impart a curly curl to the hair, the heater being attached to the winding drum. The winding drum is installed so that it is exposed on the surface, and the winding drum is removably attached to the tip of the housing that houses the secondary battery that serves as the power source for the heater. A charging circuit that supplies charging current to the battery is housed, and the charging circuit is equipped with a non-insulated transformer that steps down the voltage of the commercial power source.The tip of the housing has a protruding plug blade for connecting the charging circuit to the commercial power source. In addition, either a pin plug or a pin socket is provided for electrically connecting the secondary battery and the heater when the winding drum is coupled to the housing, and the other of the pin plug and the pin socket is provided. A hair setting device provided on a winding drum, wherein the connection between the pin plug and the pin socket and the connection of the plug blade to a commercial power source are made alternatively. 2. The plug blade can be freely raised and folded between a storage position where it projects along the axial direction of the winding drum when the winding drum is connected to the housing, and a connection position where it projects in a direction crossing the axial direction of the winding drum. In the stored position, the winding drum is connected to the housing and the pin plug and pin socket are connected, and in the connected position, the winding drum is locked to the plug blade, thereby preventing the winding drum from being connected to the housing. 2. The hair set device according to claim 1, wherein the pin plug and the pin socket are disconnected from each other.