JPS639450B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a hair dryer, and more particularly to a technique for cleaning dirt that has entered through an air intake port.

In conventional hair dryers, a filter removes dust and dirt from the air sucked in through the air intake port, and this filter is cleaned by removing the filter, which poses the problem of being troublesome to clean. Ta.

The present invention has been made in view of these problems, and its purpose is to provide a hair dryer that can be easily cleaned without removing the filter.

An embodiment of the present invention will be described in detail below with reference to the drawings.

Reference numeral 8 denotes a hair dryer, which is configured so that when a switch is turned on and a motor 9 is rotated, air sucked in from an air intake port 1 is cut into a heater 10 to be turned into hot air and discharged from a discharge port 11. In FIG. 1, 12 is a metal cover, 13 is a discharge port member,
14 is a heater wire, 15 is a heater board, 16 is a rectifier blade, 17 is a lead wire, 18 is a handle, 19 is a cord, 20 is a switch button, 21 is a screw, 22
is a changeover switch that changes the rotation direction of the motor 9.

The air suction port 1 of the approximately cylindrical case 2 has a second
As shown in the figure, a circular filter 5 is provided. There is an air volume adjustment cover 3 on the edge of the air intake port 1.
A brush 6 for cleaning the filter is provided on the air volume adjustment cover 3 and a dust discharge hole 7 is formed, so that the brush 6 can be brought into sliding contact with the filter 5 by rotating the air volume adjustment cover 3. Dust and dirt are swept off from the filter 5 by the filter 5, and the dust and dirt are allowed to fall and be discharged from the dirt discharge hole 7. The configuration will be explained in detail below.

A hook 24 is formed on a cylindrical receiving part 23 extending from the case 2 and having a filter 5.
Reference numeral 25 denotes a first air volume adjustment cover, which is formed into a substantially cylindrical shape. A circumferential flange 26 is formed at the front end of the first air volume adjustment cover 25, and a hook groove 27 is formed on the inner peripheral surface of the circumferential flange 26. The first air volume adjustment cover 25 is non-rotatably attached to the case 2 by making the bullet enter using force. A cross-shaped grid 28 is formed at the rear end of the first air volume adjustment cover 25, and air intake ports 29 are formed between the grids 28. Reference numeral 30 denotes a second air volume adjustment cover, which is formed into a substantially cylindrical shape, is slidably inserted over the first air volume adjustment cover 25, and is slidably rotatable. At the front end of the second air volume adjustment cover 30,
A contact surface 31 is formed on the circumferential flange 26 of the first air volume adjustment cover 25 so that it can come into contact with and separate from it.
A cross-shaped grid 28 is formed at the rear end of the second air volume adjustment cover 30, and air intake ports 29 are formed between the grids 28. The first and second air volume adjustment covers 25 and 30 are rotatable at their rear ends by a flanged pin 32, and between the retaining flanges 33 and 33 at both ends of the flanged pin 32, the first air volume adjustment cover 2
5, the second air volume adjustment cover 30 is slidable in the insertion/removal direction. Further, the second air volume adjustment cover 30 is slidable and rotated with respect to the first air volume adjustment cover 25 about a flanged pin 32.

FIG. 3 shows an operating groove 34 that determines the operating range of the second air volume adjustment cover 30, and a cleaning groove 3 that is long in the circumferential direction.
5 and a shorter operating groove 36 are connected in a substantially H shape, and this operating groove 34 is connected to the first air volume adjustment cover 25.
It is located at the upper end of the . Reference numeral 37 denotes an engaging element, which has a shape and size that allows it to run within the approximately H-shaped operating groove 34. The engager 37 is the second air volume adjustment cover 30
It is provided on the lower surface of the upper end. 38 is a notch, which allows the part around the engager 37 to be elastically displaced;
When the second air volume adjustment cover 30 is inserted over the air volume adjustment cover 25, the portion around the engaging element 37 is elastically displaced, making it easier for the engaging element 37 to fit into the operating groove 34. Moreover, the first and second air volume adjustment covers 25, 3
Through holes 39, 39 as dust discharge holes 7 are transparently provided in the lower end portions of each of the dust discharge holes 7. The second air volume adjustment cover 30 is provided with a substantially cross-shaped brush 6 that can come into contact with and separate from the filter 5. Further, a changeover switch 22 for changing the rotation direction of the motor 9 is attached to the lower end of the first air volume adjustment cover 25, and an actuator 40 of the changeover switch 22 is made to protrude from the rear surface 41 of the flange 26. In addition, the first and second air volume adjustment covers 2
5 and 30, the air volume adjustment cover 3 can be modified in various designs.

Then, the second air volume adjustment cover 30 is pulled rearward with respect to the first air volume adjustment cover 25 attached to the case 2, and the engager 37 is operated from the position shown by the solid line in FIG. 3 to the position shown by the imaginary line. In this state, by rotating the second air volume adjustment lever 30 in the circumferential direction, while the hair dryer 8 is operating,
Depending on how the air intake ports 29, 29 of the first and second air volume adjustment covers 25, 30 are aligned, the air intake opening is set to a suitable one, and the volume and temperature of the hot air are adjusted. And the second air volume adjustment cover 30
Push forward and attach the second air volume adjustment cover 25 to the first air volume adjustment cover 25.
By deeply inserting the air volume adjustment cover 30 and bringing the front surface of the second air volume adjustment cover 30 into contact with the rear surface 41 of the flange 26 of the first air volume adjustment cover 25, as shown in FIG. The positive and negative circuits of the motor 9 are switched, and the motor 9 is rotated. In such a case, the engager 37 is located at the position shown by the solid line in FIG. 3, and
The brush 6 is in contact with the filter 5, and further,
The through holes 39 and 39 serving as the dust discharge hole 7 coincide with each other. Then, by rotating the second air volume adjustment cover 30 in the circumferential direction, the brush 6 slides against the filter 5, removes dust and dirt from the filter 5, and is rotated in the opposite direction by the motor 9, which is rotating in the opposite direction. The fan 4 blows air to the air intake port 29, removes dust and dirt attached to the filter 5 from the filter 5, and removes these dust and dirt from the through holes 39, 39 serving as the dirt discharge hole 7. It is caused to fall and be discharged. In this case, since the dust discharge hole 7 is located at the lower end, the dust and dirt can be discharged in the same posture as when the hair dryer 8 is used by holding the handle 18 by hand.

In summary, the present invention has a substantially cylindrical air volume adjustment cover rotatably fitted onto a substantially cylindrical case having an air intake port, and a filter is provided between the air volume adjustment cover and a fan built into the case. The air volume adjustment cover is equipped with a brush for cleaning the filter and has a dust discharge hole, so the air volume adjustment cover can be effectively used and the air volume adjustment cover can be rotated with the simple modification of attaching a brush to it. By doing so, you can clean the dust and dirt on the filter without removing the filter, and these dust and dirt can be discharged from the dust discharge hole, making it easy to clean the filter.In other words, by rotating it. Focusing on the air volume adjustment cover, we placed a filter opposite it,
By providing a brush for cleaning the filter on the air volume adjustment cover that is rotatably operated, there is no need to provide a separate rotary operating tool for cleaning the filter, simplifying the configuration for cleaning the filter, and even using a hair dryer. It has the advantage of simplifying the configuration.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of an embodiment of the present invention, FIG. 2 is an exploded perspective view of the case and air volume adjustment cover,
Fig. 3 is a plan view of the operating groove shown above, Fig. 4 is a cross-sectional view taken along line A-A in Fig. 1, Fig. 5 is a cross-sectional view taken along line A-A shown in Fig. 5, and Fig. 6 is a cross-sectional view taken along line B-B shown in Fig. 5. It is a cross-sectional view, and 1
is the air intake port, 2 is the case, 3 is the air volume adjustment cover, 4 is the fan, 5 is the filter, 6 is the brush,
7 is a garbage discharge hole.

Claims (1)

[Scope of Claims] 1. A substantially cylindrical air volume adjustment cover is rotatably fitted onto a substantially cylindrical case having an air suction port,
A hair dryer characterized in that a filter is disposed between an air volume adjustment cover and a fan built in a case, a brush for cleaning the filter is provided on the air volume adjustment cover, and a dust discharge hole is formed. 2. The hair dryer according to claim 1, characterized in that the brush is capable of coming into contact with and separating from the filter. 3. The hair dryer according to claim 1, wherein the dust outlet is formed at the lower end of the air volume adjustment cover. 4. The hair dryer according to claim 1, wherein the fan is configured to be capable of being driven in reverse rotation.