JPS6032445B2 - hair dryer - Google Patents

Description

[Detailed description of the invention] This invention relates to a hair dryer.

The hair dryer shown in FIG. 8, which is suitable for portable travel, has a circumferential groove B formed in the main body A, a discharge port C in the circumferential groove B, a suction port D in the surface, and a code E in the cylindrical groove B. It is convenient because it can be wrapped around it.

However, "This hair dryer has a power cord E
If the switch F was turned on and the power was turned on while all or part of the cord was wound around the circumferential groove B, there was a risk that the cord E would be burnt out by the hot air.

Therefore, it is an object of the present invention to provide a hair dryer which prevents such dangers.An embodiment of the present invention is shown in FIGS. 1 to 7.

That is, this hair dryer consists of a main body 1, a fan 2, a motor 3, a heater block 4, a switch 5, and a power cord 6. Main body 1 is split housing la, l
b are joined together to form a fan flat shape, and a circumferential groove 7 is formed.
, forming raised parts 8 and 9 at opposing positions of the housings 1a and lb, and forming a suction row 0 on the periphery of the raised parts 8 and 9,
The housing lb has a motor receiving part 11 integrally formed with the raised part 9 as the bottom part.

In addition, the housings la and lb are connected by forming two cut-and-raised pieces 3 on the web of the U-shaped fixing plate 12, so that the cut-and-raised pieces 13 fit into the connecting holes 14 of the circumferential groove 7, and both ends of the fixing plate 12 are connected. The piece 15 is engaged with and fixed to the inner protrusion 16 of the flange forming the joining groove 7. Further, the discharge port turtle 7 is fixed to the main body 1 with a screw 18 in a part of the circumferential groove 7, and the housing la is fixed by the engaging part 17a and the blind 7b.
, also serves as fixation for blind b. Motor receiving part 1 of housing lb
1 has a slit 19 at the bottom as shown in Figures 3 and 4.
The board plate 20 is installed and the motor receiving part 1 is installed.
By attaching the motor 3 to the vine, electrical contact is made with the motor terminal 21.

The fan 2 is a sirocco fan and is arranged to surround the motor receiving part 1, and its center is attached to the motor shaft 3a. The heater block 4 is constructed by constructing a substrate 4a and press-fitting heater wires 22 in a bent state into a number of holes 4b provided in the substrate 4a to form a corrugated mesh, and is arranged inside the discharge port 17. .

The switch 5 is of a sliding type and is adjacent to the heater block 4. As shown in FIG. 5, a switch cam 5b engages with a nail 5a of the switch 5, and the switch is inserted through a claw foot 24 of a switch operation plate 6c through a hole 23 formed in the housing la. Hole 2 of cam 5b
It is supported by the housing la by iron-bonding it to the housing la.

The power cord 6 has a plug 26 at its tip, a cord bush 27 and a connector 28 at its rear end, the cord push 27 is formed in the gap 7a formed in the circumferential groove 7, and the base weave of the bush 27 is connected to the shaft. 29, the housings la, lb' are rotatably mounted on bearings (29a).

Further, the basic weave portion of the bush 27 has a stopper claw portion 30 that serves as a switch engaging portion, and faces a protrusion 31 that serves as an engagement receiving portion of the switch cam 5b. Connector 28 is connected to switch 5. Figure 6 shows the electric circuit of this hair dryer, where P is the plug 26 and S is the three-stage switch (OFF-Col).
d-HOT) switch, m is a thermoswitch, Di is a rectifier, M is a motor 3, R is a voltage dividing resistor, and R2 is a main heater 22.

In this hair dryer, when the switch 5 is set to "HOT", the motor 3 and heater 22 are energized, the fan 2 rotates to blow out air, and the heater 22 heats the air.

When switch 5 is set to "COLDJ", only the motor 3 is energized and cold air is discharged.Also, switch 5 is set to "HO".
When the switch is turned on (T" or "COLD"), the protrusion 31 of the switch cam 5b pushes the stopper pawl 30 of the bush 27 to bring the bush 27 into an upright state, as shown in FIG. As a result, when winding the cord 6 around the circumferential groove 7, the push 27 becomes an obstacle, making it difficult to wind the cord 6 around the circumferential groove 7. Furthermore, when the switch 5 is turned off, the protrusion 31 and the claw 30 no longer engage with each other.
Since the pusher 27 falls down, the cord 6 can be wrapped around the circumferential groove 7. Furthermore, in order to turn on the switch 5 in this state, it is necessary to raise the bush 27, and if the cord 6 is wound, the cord 6 will interfere and the switch 5 cannot be turned on. With this configuration,
This hair dryer has the following effects.

That is, '1} When the power cord is wound around the circumferential groove 7, the switch 5 cannot be turned on, and when the switch 5 is on, the cord 6 cannot be wound, so it is safe. ■ Since the terminals of the motor 3 are connected to the lead plate 201, the space for soldering and the space corresponding to the thickness of the lead wires can be reduced compared to the case of connecting lead wires. This makes it possible to reduce the thickness of the main body and eliminates the need for soldering, improving assembly efficiency.

As described above, in the hair dryer of the present invention, the cord bush can be raised freely and the bush is regulated to be in an upright state when the handle of the switch is on. The cord can be wrapped around the cord and stored in a space, making it cheap and compact to store, making the dryer flat and compact, making it convenient to carry.In addition, since the bush falls down when the cord is wrapped, the handle can be turned on instead. On the other hand, in the ON state, the bush stands up, so there is no danger of winding the cord and burning out the cord like in the past, and when in use, the bush stands up along with the cord. Since the cord protrudes from within the circumferential groove, the bush connection portion of the cord does not bend excessively, and the circuit configuration is not complicated.

[Brief explanation of drawings]

Fig. 1 is a plan view of an embodiment of the present invention with one side of the housing removed, Fig. 2 is a vertical sectional view, Fig. 3 is a plan view of one of the housings, and Fig. 4 is an exploded view of the motor mounting section. 5 is an exploded perspective view of the switch part, FIG. 6 is an electric circuit diagram, FIG. 7 is a plan view of the main part in the switch-on state, and FIG. 8 is a cross-sectional view.
The figure is a perspective view of a conventional example. 1...Body, 5...Switch, 5c...Switch operation board (switch handle part), 6...Power cord,
7... Circumferential groove, 17...Discharge port, 27... Cord bush, 30... Stopper pawl (switch engagement part),
31...Protrusion (engaging receiving part). Figure 1 Figure 2 Figure 6 Figure 3 Figure 4 Figure 5 Figure 7 Figure 8

Claims (1)

[Claims] 1. A dryer main body having a pair of side walls, a circumferential groove for cord winding formed between the side walls by recessing from the outer periphery thereof, and a discharge port formed in a part of the circumferential groove, and a switch engaging portion in the circumferential groove. a power cord provided with a bushing that can be freely raised and lowered; and a handle portion of a power switch provided in a portion of the dryer body other than the circumferential groove and having an engagement receiving portion for the switch engagement portion; A hair dryer characterized in that the bush is regulated in an upright state when the part is in an on state.