JPH0747043Y2 - Hair dryer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a hair dryer, and is an improvement of a switch operating means for controlling the operating states of a blower fan motor and a heater.

[Conventional technology]

Generally, a hair dryer operates a single control switch provided on its handle to sequentially switch basic operation modes such as cold air, weak warm air, and strong warm air.

An auxiliary switch is provided in addition to the above-mentioned control switch, and the operating state is switched from a state of strong air to a state of strong cold by the switching operation thereof.
It is well known in Japanese Patent Publication No. 1-11103 and Japanese Utility Model Publication No. 11103.

[Problems to be Solved by the Invention] There are two types of operation control that are performed by switching the auxiliary switches, one that partially switches the basic operation mode and one that obtains an operation state different from the basic operation mode.
For example, the one that switches between strong warm air and weak warm air is the former,
The latter is the one that makes the state of strong cold air or intermediate warm air. In any case, the operating state obtained by switching the auxiliary switch is
Except for the state before switching, there is only one type, and it is difficult to obtain the necessary driving state sufficiently when performing delicate hair shaping or curling. In particular, hairdressing salons that perform advanced and severe hair treatments depending on the quality and thickness of various hairs are required to have more diverse and subtle operation modes for hair dryers. ing.

The present invention has been proposed in view of the above, and an object thereof is to make it possible to increase the amount of air blown for each individual operating state of the basic operation mode, and further to rapidly switch the hot air supply state to the cold air supply state. By doing so, it is intended to diversify driving conditions and provide a hair dryer that can handle advanced and severe hair treatment.

[Means for Solving the Problems]

In this invention, for example, as shown in FIG. 1, the dryer body 1 has a switching knob 30 for switching the basic operation mode.
Separately, in each operation state of the basic operation mode, the switching member 47 that controls the operation state of the blower device 3 to increase the air flow rate, and the heater 9 and the air blower in the operation state of supplying the warm air in the basic operation mode. A quenching switching member 46 that controls the operating state of the device 3 to switch to the cold air supply state is provided. And the switching member for increasing the wind
Both the 47 and the rapid cooling switching member 46 are of a push-operation type, and are arranged side by side in the gripping axial direction above the grippable area on the outer surface of the blower tube 4 of the dryer body 1, and the switching member 47 for increasing the air flow. Is characterized in that the ON state can be held by itself.

[Action]

By operating the switching knob 30, it is possible to switch to a basic operation mode, for example, cold air / weak warm air / strong warm air. In each of these operating states, when the switching member 47 is switched, the drive rotation speed of the blower device 3 increases, and the amount of blown air increases. In addition, when the rapid cooling switching member 46 is operated to switch in each operating condition such as weak warm air or strong warm air, the heater 9
The heat generation of is stopped or nullified, and it switches to the cold air supply state.

〔Example〕

1 to 9 show an embodiment of a hair dryer according to the present invention.

In FIG. 2, the hair dryer is a dryer body 1,
The nozzle 24 and other attachments that are exchangeably attached to the outlet 24 are provided. The dryer body 1 has a blower device 3 for sucking and supplying external pressure, a blower cylinder 4 for laterally blowing out the air flow generated by the blower device 3, a handle 5 protruding downward, and the like. Is provided.

The dryer main body 1 is composed of a main body case 6 which is entirely hollow, an air blowing fan 7, a motor 8, a heater 9 and various electric components arranged in the case 6. The main body case 6 is a split case that is divided into left and right and has substantially the same shape.
6a and 6b are butted against each other and integrally joined with a screw 6c.

In FIG. 4, a fan chamber 12 is defined inside the main body case 6 by a circular peripheral wall and a partition wall 11 continuous to this peripheral wall, and a fan 7 and a motor 8 are arranged inside the fan chamber 12 to form the blower device 3. It is provided. The fan 7 is composed of a centrifugal multi-blade fan, is directly connected to an output shaft 13 of a motor 8 arranged concentrically, and is rotationally driven around a horizontal axis. Motor 8
Is attached to the main body case 6 via a cylindrical motor case 14. The fan chamber (12) has left and right side walls provided with air intake ports (15), and the outer surfaces thereof are covered with a suction grill (16) made of punching metal.

The blower tube 4 is a main body case 6 continuous with the peripheral wall of the fan chamber 12.
It is formed by a side cylinder opening 21 and a nozzle cylinder 22 which is externally fitted and fixed to a projecting end of the cylinder opening 21. A heater 9 and an outlet grill 23 that emits far-infrared rays are arranged from a midway portion of the tube mouth 21 toward a tip of the nozzle tube 22. The heater 9 is wound around an insulating plate having a cross-shaped cross section according to a conventional method. The outlet grill 23 is formed by applying far-infrared radiation paint on the surface of a grid-shaped metal substrate, and is fitted and fixed to the inner end of the outlet 24 of the nozzle cylinder 22.

As shown in FIG. 2, in particular, when the dryer is used while being finely moved over the head, or in a hairdressing salon, the blower tube 4 is often used rather than the handle 5. Therefore, anti-slip ribs 25 are integrally formed on each of the lower half peripheral surface of the tube mouth 21 and the upper half peripheral surface of the nozzle cylinder 22. Further, the wall thickness of the nozzle cylinder 22 is gradually increased toward the air outlet 24 with the end on the cylinder mouth 21 side as a reference, thereby preventing the surface temperature from increasing.

The inside of the handle 5 is the partition wall 11 and the partition wall 11 described above.
And a partition wall 27 protruding laterally from the upper end of the partition wall, the partition wall is separated from the fan chamber 12, and the main control switch 28 is arranged in a vertically long position in the partition chamber and above the main control switch 28. A quenching switch 29 is placed. A switching knob 30 for operating the main control switch 28 is supported on the outside of the front surface of the handle 5 so as to be vertically slidable. The switching knob 30 switches the main control switch 28 via a connecting plate 31 provided inside the handle 5.

As shown in FIGS. 2 and 3, the switching knob 30 is
The handle 5 has a U-shaped cross section in conformity with the peripheral surface of the handle 5. Similarly, finger contact ribs 32 are provided so as to project in a U-shaped cross section along the peripheral surface of the switching knob 30, and the projecting length thereof is set to be large. By forming the finger contact ribs 32 in this way, the operation of the switching knob 30 can be performed from any part of the front half peripheral surface of the handle 5.

The power cord 33 is introduced into the inside of the handle 5 via a cord armor 34 fixed to the lower end of the handle 5 and connected to the main control switch 28.

In FIG. 4, a switch compartment 41 is provided on the upper surface of the blower tube 4 and at a position adjacent to the blower device 3. The switch compartment 41 is partitioned by a switch panel 42 that is sandwiched and fixed between the left and right split cases 6a and 6b, and a partition wall 43 that projects from both split cases 6a and 6b so as to face each other. Is a vertical wall 44 provided on the inner surface of the switch panel 42 and is divided into two front and rear chambers. A boost switch 45 and a push-button structure switching member 47 for switching the switch are arranged in the front compartment, and a push-button structure for switching the rapid cooling switch 29 in the rear compartment. A member 46 and a return spring 48 are arranged.

An operation rod 49, which is long in the vertical direction, is fixed to the lower portion of the rapid cooling switching member 46 for switching the rapid cooling switch 29 provided inside the handle 5. The operation rod 49 cuts vertically near the outlet of the fan chamber 12, and the lower end of the operation rod 49 has a rapid cooling switch 29.
Is close to the switching piece 29a. Guide recesses 50 are formed in the partition wall 11 and the partition wall 27, respectively, in order to position the operation rod 49 and guide it vertically. 51 is a return spring.

In FIG. 6 and FIG. 7, the switching member 47 for the wind increase switch 45 has an oval base 53, and a spring arm 54 is projected from one center of the base 53 and the other side is centered. The hook 55 is projected. Further, a fulcrum rib 56 and a cam piece 57 for pushing down the switching piece 45a of the wind increase switch 45 are provided on the lower surface of the base portion 53 in a protruding manner. A fulcrum boss 58 is provided on the upper surface of the protruding end of the spring arm 54. A button 59 is bulged in the center of the upper surface of the base 53.

Adjacent to the base end of the vertical wall 44, a fulcrum hole 61 corresponding to the fulcrum boss 58 is provided on the inner surface of the switch panel 42. Further, a protrusion 62 for maintaining the switching member 47 in the ON position is formed on the front end side of the inner surface.

The switching member 47 is incorporated from the inside of the switch panel 42, and the fulcrum boss 58 is fitted into the fulcrum hole 61. In this state, the fulcrum rib 56 is in contact with the upper surface of the air boost switch 45. Further, the latching claw 55 is adjacent to one end of the protrusion 62 as shown in FIG. 7, and the cam piece 57 is closely opposed to the switching piece 45a.

The switching member 47 can be tilted in and out using the fulcrum rib 56 as a fulcrum, and when the switching member 47 is pushed in, the cam piece 57 of the switching member 47 switches the wind increase switch 45 to the ON state via the switching piece 45a. When the operating force is released from this state, the switching member 47
Is returned to the standby state by the elastic force of the spring arm 54, and the switch 45 is also returned to the off state.

The switching member 47 can also be horizontally swung about the fulcrum boss 58. When the switching member 47 is pushed in and is swung in the clockwise direction, the latching claw 55 at the tip end is moved.
Enters the lower surface of the protrusion 62, is received and supported by the lower surface, and keeps the switching member 47 in the ON state. That is, the switching member 47
Can turn on and off the wind increase switch 45 at the standby position, and can also keep the on state by itself by sliding it laterally from the on position.

The surface shapes of the rapid cooling switching members 46 and 47 arranged side by side are made different so that they can be distinguished only by the touch. More specifically, as shown in FIG. 7, a slightly wide discriminating protrusion 64 that is long in the left and right is formed in the center of the outer surface of the rapid cooling switching member 46 for the rapid cooling switch 29, and is formed on the external surface of the switching member 47 for the air boost switch 45. Form a discriminating protrusion 65 composed of an inner and outer double circular rib. Further, the protrusion height of the former determination protrusion 64 is set larger than that of the latter determination protrusion 65.

Motor 8, heater 9, main control switch 28, quenching switch 29 and blower switch incorporated in the dryer body 1
Electrical components such as 45 are connected as shown in FIG.

The main control switch 28 has five connection terminals from, and with the terminals of and as the power source side, by switching the connection state between each terminal of and, the operating state is cold air, weak hot air, Switch to three basic operation modes of strong warm air in sequence. The terminal connection state in each operation mode is shown in the table in FIG.

The motor 8 is driven by a DC power supply supplied via the rectifier circuit 67. One input path 70 of the rectifier circuit 67 has two motor resistors 68 and 69 and a fuse 73 connected in series, and is directly connected to the terminal of the main control switch 28 and unidirectionally to the terminal. Each of them is connected via a diode 71 that allows only the passage of a current. The other input path 72 of the rectifier circuit 67 is connected to the terminal of the main control switch 28.

In the input path 70, the motor resistance 68 on the diode 71 side
And a boost switch 45 is connected in parallel with. Boost switch
Reference numeral 45 denotes a normally open switch. When this switch is turned on, the motor resistance 68 is bypassed, so that the voltage value applied to the rectifier circuit 67 increases and the rotation speed of the motor 8 increases. That is, the wind increase switch 45 functions to increase the air volume for each state of the basic operation mode.

The heater input path 74 is branched from between the fuse 73 of the input path 70 and the motor resistance 68, and the thermostat 75, the heater 9 and the rapid cooling switch 29 are sequentially connected to this, and the normally closed terminal 29b of the rapid cooling switch 29 is mainly connected. It is connected to the terminal of the control switch, and the normally open terminal 29c is connected between the two motor resistors 68 and 69. In parallel with the heater 9, a display unit A that displays the energized state of the heater 9 is connected. This display A
Includes a light emitting diode 76 and a diode 77 for preventing a reverse current from acting on the light emitting diode 76 connected in parallel, and a current control resistor 78 connected in series with both diodes 76 and 77.

Next, each operating state of the basic operation mode and the rapid cooling switch 29
The operating state when the air boost switch 45 is switched will be described.

(Cold Air Mode) In this state, the terminals of the main control switch 28 are connected to and the terminals are open.
Therefore, the heater 9 is not energized and only the motor 8 is rotationally driven (5500 rpm).

When the wind-up switch 45 is turned on from this state, a current flows by bypassing the motor resistance 68, so that the motor resistance is reduced by that amount and the voltage value applied to the motor 8 is increased to rotate the motor 8. The number increases and the air volume increases (6500rp
m).

Further, when the rapid cooling switching member 46 is pushed in from the cold air state to switch the rapid cooling switch 29 to the terminal 29c side, the circuit on the heater 9 side is connected to the motor resistor 68 in parallel. That is, the combined resistance of the heater 9 and the motor resistance 68 determines the voltage value applied to the rectifier circuit 67. This combined resistance value is smaller than the individual resistance value of the motor resistor 68. Therefore, the voltage value applied to the rectifier circuit 67 rises and the rotation speed of the motor 8 increases as compared with that in the case of cold air, but the rotation speed is slightly lower than when the wind increase switch 45 is turned on (<6500 rpm). ).

When the rapid cooling switch 29 and the wind boost switch 45 are simultaneously turned on, the state is the same as when the wind boost switch 45 is independently turned on.

(Weak Hot Air Mode) In this state, the terminals are connected to each other and the terminals communicating with the heater 9 are connected to each other, so that the drive power is supplied to both the motor 8 and the heater 9. However, since the diode 71 is interposed in the circuit leading to the terminal, only the half-wave portion of the commercial AC power supply is used, and the motor 8
The voltage value applied to is lower than in the cold air mode, and the rotation speed is also lower (4000 rpm). Further, the power consumption of the heater 9 is also reduced, and the heat generation amount is reduced (600 W).

When the wind-up switch 45 is turned on in the mild warm air mode, the motor resistance 68 is bypassed as described above, so the motor 8
The number of rotations increases and the air volume increases, but the degree of increase is small (45
00 rpm).

When the rapid cooling switch 29 is turned on in the weak warm air mode, the circuit on the heater 9 side causes the motor resistance as described above.
It is connected in parallel with 68, and the current value supplied to the heater 9 is reduced to an almost negligible level. At the same time, the rotation speed of the motor 8 increases (<4500 rpm). So in this case,
The heat generation of the heater 9 is invalidated from the weak warm air state, and the state is switched to the cold air state in which the number of revolutions is slightly reduced as compared with the air blowing state in the cold air mode.

When both the rapid cooling and air blowing switches 29 and 45 are turned on, the rotation speed of the motor 8 is increased (4500 rpm), and the heater 9 is almost the same as when the air blowing switch 45 is independently turned on. Does not generate heat.

(Strong hot air mode) In this operation mode, the terminals of ,,, and are connected. What is different from the weak warm air mode is that the full-wave portion of the commercial AC power source is all applied, so that the rotation speed of the motor 8 becomes the same as that in the cold air mode (5500 rpm). In addition, the power consumption of the heater 9 is twice that in the weak warm air mode (1200 W).

When the wind increase switch 45 is turned on in the strong warm air mode,
The rotation speed of the motor 8 increases and the air volume increases (6500 rpm).

Also, when the rapid cooling switch 29 is switched to the terminal 29c side,
As in the case of the weak warm air mode, the heat generation of the heater 9 is reduced to an almost negligible level, and at the same time, the rotation speed of the motor 8 increases (<6500 rpm). That is, in this case, the strong warm air state is switched to the cold air state.

When both the rapid cooling and the air-blowing switches 29 and 45 are switched, the same motor rotation speed as in the state where the air-blowing switch 45 is independently turned on is obtained (6500 rpm), and the heater 9 hardly generates heat.

The above operation is summarized in the table shown in FIG.

As described above, in each state of the basic operation mode, a wide variety of operating states can be obtained by switching both the rapid cooling and increasing wind switches 29 and 45. Therefore, for example, when performing simple drying or blowing, the handle 5 is held and the main control switch 28 is switched to obtain a required operating state, or when performing a habit, the blower tube 4 is grasped to, for example, a high temperature. The hair dryer can be used in various forms according to the work purpose, such as switching between the wind condition and the strong cold wind condition alternately.

When gripping the blower tube 4, as shown in FIG. 2, a gripping posture without a heavy weight is often selected. In this grip position, the switching member for the rapid cooling and air-blowing switches 29 and 45 is located at the grip position of the index finger and middle finger where it is easy to exert a large operating force.
46 and 47 are provided. Therefore, the switching members 46 and 47 can be easily switched while the blower tube 4 is being held, and the operating states can be switched quickly. At this time, since the discriminating protrusions 64 and 65 having different shapes are provided on the respective switching members 46 and 37, it is possible to discriminate the rapid cooling switching members 46 and 47 only by the tactile sensation of a finger, and it is possible to prevent erroneous operation.

[Another embodiment example]

The rapid cooling switch 29 may simply turn off the circuit between the terminal and the heater 9. However, in this case, the rotation speed of the motor 8 cannot be increased when the rapid cooling switch 29 is switched.

In the above embodiment, the basic operation modes are cold air, weak warm air,
Although three states of strong warm air are shown, there may be four or more operating states. Further, the switching may be performed by a plurality of switching knobs.

The blower mechanism of the dryer body 1 does not necessarily need to use the centrifugal fan 7. For example, it may be configured to send the wind by an axial fan.

[Effect of device]

As described above, in the present invention, in addition to the switching knob 30 for switching the basic operation mode, the switching member 47 for increasing the wind and the rapid cooling switching member 46 for the rapid cooling are provided. By individually switching the members 46 and 47, it is possible to obtain a boosting operation state in which the air volume is increased from each operation state of the basic operation mode, or to directly switch the hot air supply state to the cold air supply state. As a whole, the operating condition of the hair dryer can be variously changed. Therefore, the air volume and temperature corresponding to the advanced and severe hair treatment technique can be subtly changed, or the operating state can be rapidly switched, and the hair treatment can be performed effectively and efficiently.

In particular, since the push-up type air blowing switching member 47 and the rapid cooling switching member 46 are both arranged side by side in the gripping axial direction above the grippable region on the outer surface of the blower tube 4, the hand holding the blower tube 4 is held. By changing the grip pressing force of the operating finger, it is possible to easily perform an increase air switching operation or a rapid cooling switching operation without changing the dryer main body 1 one by one, and the gripping direction of the blower tube 4 and the switching members 47 and 46. Since the pressing direction of the dryer is the same, the dryer main body 1 is not removed, and the drying and setting operations can be performed very easily and safely. Moreover, since the wind-up switch member 47 can hold the on-state by itself, it is possible to dry while holding the blower tube 4 while operating and holding the switch member 47, and the rapid-cooling switch member in the held state. It is convenient to operate 46 so that it can be cooled rapidly regardless of the position of the switching member 47.

[Brief description of drawings]

1 to 9 show an embodiment of a hair dryer according to the present invention, FIG. 1 is a principle explanatory view, FIG. 2 is an external front view, and FIG. 3 is AA in FIG. Line sectional view, FIG. 4 is an internal front view, FIG. 5 is a vertical side view, FIG. 6 is a vertical sectional front view of a switch section, FIG. 7 is a plan view of a switch section, and FIG. 8 is a wiring diagram of electrical components. Fig. 9 is an electric circuit diagram showing the states, and Fig. 9 is a chart in the control state showing the operation changes of the motor and the heater in each operating state. 1 ... Dryer main body, 3 ... Blower, 7 ... Fan,
8 ... motor, 9 ... heater, 28 ... main control switch,
29 ... Quenching switch, 30 ... Switching knob, 45 ... Increase switch, 46 ... Quenching switching member, 47 ... Switching member.

Claims (1)

[Scope of utility model registration request] 1. A switching knob 30 is provided on the outer surface of a dryer main body 1 having a blower tube 4 having a blower 3 and a heater 9 incorporated therein, which controls the operating states of the blower 3 and the heater 9 to switch the basic operation mode. In the hair dryer provided, in each operating state of the basic operation mode, a switching member 47 for controlling the operating state of the blower device 3 to increase the amount of air blow, and an operating state of supplying hot air in the basic operation mode. , The rapid cooling switching member 46 for controlling the operating states of the heater 9 and the blower device 3 to switch to the cold air supply state are both push-operated type members, and are gripped above the grippable area on the outer surface of the blower tube 4. A hair dryer, wherein the hair dryers are arranged side by side in the axial direction, and the switching members 47 are configured to be capable of self-holding in an ON state.