JP3151563B2 - Hair dryer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a hair dryer having a plurality of switches, and more particularly to an improvement in the workability of assembling the switches.

[0002]

2. Description of the Related Art As a hair dryer of this type, for example, a rapid cooling changeover switch is provided in addition to a power switch as disclosed in Japanese Utility Model Laid-Open No. 1-1104.
The operation modes of these switches are different to prevent erroneous operation. Here, a slide type power switch and a push type quenching switch are employed.

[0003]

However, in the above-mentioned conventional device, in order to assemble the switch and its operation knob with respect to the main body case, the switch is first assembled in the main body case, and then the switch is operated outside the main body case. Since the knob is assembled in accordance with the position of the switch, the number of assembling steps is increased. In particular, when a plurality of switches are individually assembled to different portions of the main body case, that is, to the air blower tube portion and the handle portion, respectively, it is difficult to assemble because the wiring is in the way. Further, when a slide switch is assembled, when the main body case is to butt the divided cases, generally, an operation knob is provided between the buttocks so that the operation knob is slidable on the buttocks of the main body case. However, due to variations in the molding of the divided cases and the tightening of the screws that integrally connect the divided cases,
There was a case where a step was formed at the abutment, and the step could easily impair the sliding property of the operation knob.

SUMMARY OF THE INVENTION An object of the present invention is to solve these problems at once, and to improve the assemblability of a plurality of switches and operation knobs, and to ensure the slidability of a slide switch among the plurality of switches. The point is to aim at.

[0005]

According to the hair dryer of the present invention, as shown in the drawing, the blowing device 15 and the heat generating device 1 are provided.
A main body case 1 having a blower tube portion 2 containing a housing 2 and a handle portion 3 projecting from a lower peripheral surface of the blower tube portion 2 is formed by abutting divided cases 1a and 1b.
In, for controlling the blower 15 and the heating device 12, it comprises a switch set 16 formed by assembled above the plurality of switches 23, 24 to the switch base 25 comprising at least one slide switch, the switch Base 25
Has a plurality of switches 23 and 24 on the back side of the base plate 26.
Each switch is mounted on the front side of the base plate 26.
The operation knobs 30 and 31 of the switches 23 and 24 are mounted and integrated.
Of the split cases 1a and 1b
A gap is formed between the concave notches 38
When the switch base 25 is clamped and fixed,
6 is positioned more inward than the outer surfaces of the split cases 1a and 1b.
And the operation knobs 30 and 31 are set on the split cases 1a and 1b.
It faces the outside between the concave notches 38
The operation knob 31 of the slide switch 23 of the operation knobs 30 and 31 is connected to the base plate 26 of the switch base 25.
Characterized in that it is slidably provided on the surface of.

[0006]

A plurality of switches 23 and 24 and an operation knob 3
Since all of the switches 0 and 31 are mounted on one switch base 25 in advance and assembled beforehand, when assembling the switches 23 and 24 and the operation knobs 30 and 31 to the handle portion 3, the switch base 25 is used. Can be assembled simply by sandwiching and fixing between the joints of the handle portion 3. Since the operation knob 31 of the slide switch 23 is slidable on the surface of the base plate 26 of the switch base 25, even if there is a step between the butt joints of the handle part 3, it is not affected by this. The slidability can be secured.

[0007]

Therefore, according to the present invention, the plurality of switches 23 and 24 and the operation knobs 30 and 31 are also provided in the main body case 1.
This is advantageous because the operation knob 31 of the slide switch 23 can secure the slidability. In addition, since all the operation knobs 30 and 31 are on the base plate 26 of the switch base 25 of the handle portion 3, all the switches 23 can be held by the fingers of the hand holding the handle portion 3 without holding the switch portion by hand.・ It is very convenient to operate 24. Further, the switch base 25
The surface of the base plate 26 has the divided case 1a
1b is located more inward than the outer surface of the base plate 26.
The operation knobs 30 and 31 mounted on the surface are the handle 3
Does not protrude more than the outer surface of the
Good and the handle part 3 is easy to grasp
Will be preserved.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a hair dryer according to the present invention will be described with reference to the drawings. 2 and 5, the main body case 1 includes a blower tube portion 2 that is long in the front-rear direction, and a handle portion 3 integrally projecting downward from a lower part of a peripheral surface near a rear portion of the blower tube portion 2. The main body case 1 abuts left and right plastic divided cases 1a and 1b having substantially the same shape, and is integrally connected by upper and lower screws 4 of a handle portion 3 thereof.

In FIG. 2, a blower cylinder 2 of a main body case 1 is shown.
Has an outlet 5 at the front end and an inlet 6 at the rear end. An outlet grill 7 is attached to the outlet 5, and an inlet grill 9 is attached to the inlet 6. The outlet grille 7 is made of far-infrared radiating ceramic, and is fitted into a tapered plastic cylinder 8 gradually narrowing forward, from the rear thereof. 2 is connected to the outer periphery of the front end by bayonet coupling. A plastic blowing nozzle N shown in FIG. 5 is fitted to the outer periphery of the cylindrical body 8 so as to be able to be inserted and removed. A knurl K is formed at a portion of the blow nozzle N which is gripped by hand, so that the hand does not slip and the heat of the blow nozzle N is hardly transmitted to the hand. The inlet grille 9 is made of a perforated plate made of plastic, which is press-fitted to the inner periphery of the rear end of the plastic ring 18, and the inner periphery of the front end of the ring 18 is similarly fitted to the outer periphery of the rear end of the blower cylinder 2. Connect with a bond. The specific structure of the bayonet connection between the cylinder 8 and the ring 18 will be described later.

Referring to FIGS. 1 and 2, a heat generating device 12 in which a heater 11 is wound around an insulating plate 10 having a cross-shaped cross section, a motor 13 and a motor 13
And a blower 15 composed of a fan 14 that is driven to rotate. The handle unit 3 includes a switch set 16 for controlling the blower 15 and the heat generator 12. The blower 15 is configured such that the motor 13 is fitted into a cylindrical motor holding case 17, and a rectifying wing 19 is integrally formed on the outer periphery of the motor holding case 17 in a radial manner. A fan cover cylinder 21 that covers the outer periphery of the fan 14 on the shaft 20 is integrally protruded rearward.

As shown in FIG. 5, the heat generating device 12 is assembled integrally with the blower 15 in advance by mounting a cross-shaped insulating plate 10 to the motor 13 so as to protrude forward. A heat shield cylinder 22 that covers the heater 11 is mounted on the insulating plate 10. These blower 15 and heat generator 12
Are connected to the switch set 16 in advance before being assembled into the main body case 1.

As shown in FIGS. 5 and 6, the switch set 16 has a multiple slide type switch 23 for switching on / off the power and switching between strong and weak wind, and a switch for hot / cold air. And a push-type switch 24 of the alternate action type. The switch base 25 is a plastic molded product,
A rectangular tubular holder 27 that fits and holds the push-type switch 24 on the back side of the vertically elongated base plate 26, and an opposing wall 29a and 2 that fits and holds the slide-type switch 23.
The operation knob 30 (push button) of the push-type switch 24 and the slide-type switch 24 are provided on the front side of the base plate 26.
Operation knob 31 is disposed. The front surface of the base plate 26 on which the operation knob 31 of the slide switch 23 is disposed is formed to have a smooth surface so that the operation knob 31 can smoothly slide up and down by a certain stroke.

The slide switch 23 controls the power supply to the blower 15 and the heat generator 12 to switch the operation state from power-off to weak wind / strong wind / strongest wind. In the electric circuit diagram of FIG. 7, the slide switch 23 has five connection terminals of a first terminal to a fifth terminal, and the operation knob 31 shown in FIG. As each terminal moves,
Connections are made as shown in the table below to switch the operating state.

The push switch 24 is interposed in a circuit between the second and fourth terminals and the heater 11. When the operation knob 30 of the push-type switch 24 is pressed, an energized state to the heater 11 is obtained and switched to warm air. When pressed again, the heater 11 returns to the original height position and energized to the heater 11 is stopped. Switch to cold air. In FIG. 7, 3
Reference numeral 2 denotes a blower circuit that supplies electricity to the blower motor 13, 33 denotes a heating circuit that supplies current to the heater 11 for heating, and 34 denotes a motor rotation speed control resistor provided on the input side of the blower circuit 32.

The blower 1 previously connected as described above
5, the heat generating device 12 and the switch set 16 are assembled to the main body case 1 in the following manner. First, the heat generating device 1 is installed in the blower tube portion 2 of the left divided case 1a shown in FIG.
2 and the blower 15 are arranged back and forth, and a switch set 16 is arranged in the handle portion 3 thereof. The switch set 16 includes a switch base 25 as shown in FIG.
The locking piece 35 on the left side of the locking pieces 35 and 36 protruding on the left and right sides of the case 1 is inserted into a groove 37 provided on the handle portion 3 side of the divided case 1a as shown in FIG. 4 and a switch as shown in FIG. Locking pieces 39 and 40 projecting up and down of base 25
Are temporarily fitted and fixed to the handle portion 3 by fitting them into upper and lower concave portions 41 and 42 provided on the handle portion 3 side as shown in FIG. By this temporary fixing, the operation knobs 30 and 31 are exposed to the outside through the recess 38 at the butting end on the front side of the handle portion 3.

Then, as shown in FIG. 1 and FIG. 2, the right divided case 1b is put on the left divided case 1a and the edges thereof are abutted to each other, so that the blower cylinders 2 of the two divided cases 1a and 1b. The blower 15 and the heat generator 12 are held together. Also, the butted grooves 37 on the handle portion 3 side of the right divided case 1b are inserted into the right locking pieces 36 of the switch base 25 by the butting, and the upper and lower concave portions 41 are formed.
42 is fitted into the upper and lower locking pieces 39 and 40, respectively, so that the switch set 16 is connected to the switch base between the concave cutouts 38 and 38 on the front side of the handle 3 by the joint.
25 is pinched and fixed, and in this state, the base of the switch base 25 is
The surface of the plate 26 is divided as shown in FIGS.
The operation knob 30 is located on the inner side of the outer surfaces of 1a and 1b.
31 is a concave notch at the joint of the split cases 1a and 1b
It faces the outside between 38 and 38.

Next, the cylindrical body 8 in which the outlet grille 7 is fitted.
Is inserted into the outlet 5 from the front thereof and connected by bayonet connection. That is, as shown in FIG. 1 and FIG. 5, the outer peripheral surface of the outlet 5 has an L-shape in plan view having a groove 43a parallel to the cylinder axis direction and a circumferential groove 43b continuous at right angles to one end thereof. Are provided at several places in the circumferential direction, and the same number of protrusions 44 are provided on the inner circumferential surface of the cylindrical body 8.
Is inserted into the axial groove 43a and then slightly rotated to engage the circumferential groove 43b. Further, a ring 18 in which the inlet grille 9 is fitted is similarly inserted from the rear of the inlet 6 of the blower tube section 2 by bayonet connection (see FIG. 3). By the connection of the inlet grille 9 and the outlet grille 7, the butted state of the blower tube portion 2 is fastened and held inseparably.

In FIGS. 1 and 3, each of the cylindrical body 8 and the ring 18 has a hole 45 through which a screw 51 is inserted, and the hole 45 is connected to the suction port 6 by bayonet coupling as described above. The holes 51 are aligned with the holes 46 provided in a part of the outer peripheral surface of each of the outlets 5. After the bayonet connection, the screws 51 are passed through the holes 45 and screwed into the holes 46, whereby the ring 18 of the suction grill 9 and the outlet grill 7 Are respectively fixed in a retaining shape. The screwing of the front and rear screws 51 is performed from the same side of the divided case 1b.

The outlet grill 7 fitted into the cylindrical body 8 is provided with the insulating plate 10 protruding into the outlet 5 as shown in FIG. Is fixed to the cylinder 8 at the front end.

The handle portion 3 inserts the upper and lower screws 4 from the holes 48 (see FIG. 5) of the right divided case 1b similarly to the case of the screw 51 of the blower tube portion 2 and inserts the left and right divided cases 1a. By screwing into the screw boss 49 (see FIG. 5), the connection is inseparable. As shown in FIG. 2, the power cord 50 from the switch set 16 is led out from the lower end of the handle portion 3.

Switches having different operation modes include a rotary switch in addition to the slide switch and the push switch described above. Further, the number of switches mounted on the switch base 25 may be three or more. In the above embodiment, the air blow tube 2 and the handle 3 are formed integrally with the main body case 1, but instead of this, the handle 3 formed separately from the air blow tube 2 is folded. The same applies to structures that are pivotally attached.

[Brief description of the drawings]

FIG. 1 is a vertical sectional front view taken along line AA in FIG.

FIG. 2 is a vertical sectional side view.

FIG. 3 is a sectional view taken along line BB in FIG. 2;

FIG. 4 is a sectional view taken along line CC in FIG. 2;

FIG. 5 is an exploded perspective view of the whole.

FIG. 6 is an exploded perspective view of a switch set.

FIG. 7 is an electric circuit diagram.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body case 1a, 1b Split case 2 Blower tube part 3 Handle part 12 Heating device 15 Blower 16 Switch set 23 Slide switch 24 Push switch 25 Switch base 30/31 Operation knob

──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model Hei 2-67907 (JP, U) Japanese Utility Model 48-19351 (JP, Y1) Japanese Utility Model 5-3132 (JP, Y2) Japanese Utility Model 8- 1 (JP, Y2) (58) Field surveyed (Int. Cl. ⁷ , DB name) A45D 20/12

Claims (1)

(57) [Claims] A main body case 1 having a blower tube portion 2 containing a blower device 15 and a heat generating device 12 and a handle portion 3 protruding from a lower peripheral surface of the blower tube portion 2 is a half-split type split case 1a. A plurality of switches 23 and 24 including at least one sliding switch for controlling the blowing device 15 and the heat generating device 12 are pre-assembled with the switch base 25 on the handle portion 3. The switch base 16 is provided with a plurality of switches on the back side of the base plate 26.
Switches 23 and 24 are mounted, and
Operation knobs 30 and 31 for switches 23 and 24 on front side
Are mounted and integrally combined, and the joints of the handle portions 3 of the divided cases 1a and 1b are
The switch base 25 is clamped and fixed between the recesses 38.
In the state in which the base plate 26 is
The operation knobs 30 and 31 are located more inward than the outer surface of b.
Depressed notch 38.3 at the joint of split cases 1a and 1b
8 and the sliding switch 23 of the operation knobs 30 and 31
The hair dryer is characterized in that the operation knob 31 is slidably provided on the surface of the base plate 26 of the switch base 25.