JPH0364121B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This invention relates to a nozzle for a hair dryer.

[Conventional technology]

Dryers are commonly used for drying purposes, but rather than circulating hot air around the hair, hair dryers typically blow a strong stream of hot air directly into the hair mass to further dry the hair. To accelerate the drying process, use a fingertip comb, etc. to comb the area. Such a method is effective for combing the hair before setting it into the final hairstyle.

However, whether your hair is set to the desired shape or not,
Another problem is that when the hair is curled, a strong air flow disturbs the curl.

On the other hand, there are dryers that can be used for both drying and setting, and the speed of the fan can be varied in order to control the air flow rate.
The air actually discharged from the dryer has an average wind speed of 15
It can only be varied from m/s to 8 m/s, which is not enough to suppress disturbances in the set.

In response to this problem, a nozzle that diffuses the air flow and reduces the speed of the air flow has been developed (for example, Japanese Utility Model Application No. 57-45802). However, as shown in FIG. 8, this nozzle 59 is attached to the dryer main body 61 and resists the air flow by an elastic piece 60. Since strong air is directly discharged from the ribs 62 in the central part, the effect of diffusing and reducing the speed of the air flow is small. In addition, the ribs 62 that rectify the air are inclined with respect to the air discharge direction, and the discharged air spreads out beyond the maximum discharge diameter of the nozzle 59. As a result, the hot air from the dryer escapes to the outside, causing hair loss. This makes the drying efficiency worse.

In addition, there were some that had a tapered cylindrical body inside the nozzle-shaped nozzle body and also had a net stretched over the outlet of the nozzle body (for example, Utility Model Publication No. 18529/1973).
However, it was the same as above.

Furthermore, there was a device that provided ribs at the outlet of the nozzle (Utility Model Application No. 58-5605), but this had the disadvantage that the air inside the ribs could not be made uniform throughout, so the ribs could not be spaced evenly. It was hot.

[Purpose of the invention]

An object of the present invention is to provide a nozzle for a hair dryer that can reduce the air velocity without reducing drying efficiency, make the air velocity uniform, and make the ribs evenly spaced.

[Disclosure of the invention]

The nozzle of the hair dryer of the present invention includes a nozzle body having a small-diameter inlet and a large-diameter outlet, and a nozzle body disposed substantially coaxially within the nozzle body so that the inlet has a small diameter and the outlet has a small diameter. A substantially truncated conical cylinder with a larger diameter on the side and a ventilation hole formed in the peripheral wall, and a substantially truncated conical cylinder provided at equal intervals at the outlet to rectify the diffused wind in one direction, and the entire flow. It is equipped with a rectifying means having a rib body concavely curved toward the inside of the outlet.

According to the configuration of the present invention, a part of the air flowing into the inlet of the nozzle body passes through the inside of the substantially truncated conical cylinder from the small diameter inlet side, and the rest passes through the ventilation hole of the substantially truncated conical cylinder. The water spreads to the outlet of the nozzle body while passing through the outer periphery and diffusing toward the outlet with a larger diameter, and is rectified in one direction by the ribs of the flow straightening means at the outlet. Therefore, the air discharge speed can be reduced without reducing drying efficiency. In addition, the approximately truncated conical cylinder has a small diameter on the inlet side of the nozzle body and a large diameter on the outlet side, and has ventilation holes in the peripheral wall, so it is uniform throughout the inside of the rib body of the nozzle body. Since a strong wind can be obtained, disturbances such as set-up can be eliminated. In addition, by making the wind speed uniform, the ribs of the flow straightening means can be spaced at equal intervals, which improves the appearance of the nozzle.Furthermore, since the ribs are spaced evenly, there are fewer areas where hair pins can easily enter, improving safety. increases.

〔Example〕

A first embodiment of this invention will be described based on FIGS. 1 to 5. In the figure, 1 is a nozzle,
2 is the dryer main body. The nozzle 1 is composed of a cylindrical body in which a nozzle body 3 has a small-diameter inlet 4 and a large-diameter outlet 5 that widens toward the end at both ends. The inlet 4 has a slit 6 (second
It has a pair of molded spring parts (resin elastic) 7 formed by the method shown in FIG. ing. These spring portions 7 and pawls 8 are integrally formed from the same material when the nozzle body 3 is molded.
A rectifying means 11, which is a separate member, is integrally fitted to the outlet 5 by its protrusion 12 and the recess 13 of the outlet 5. The rectifying means 11 is a lattice-like rib body whose front surface forms a concave curved surface to follow the outer shape of the hair, and as shown in FIG.
6 are arranged concentrically at equal intervals, and each annular rib 15 has a flat plate shape in cross section parallel to the axis of the nozzle body 3. Further, a substantially truncated conical cylinder 17 is disposed inside the inlet 4, and this substantially truncated conical cylinder 1
Reference numeral 7 includes a cylindrical diffusion plate 18 having a small diameter on the inlet 4 side and a large diameter on the outlet 5 side, and a plate-shaped support 19 that supports the diffusion plate 18 on the nozzle body 3. The diffusion plate 18 is disposed substantially coaxially with the nozzle body 3, and has a plurality of ventilation holes 20 formed in its peripheral wall. The diffuser plate 18 and the struts 19 are simultaneously formed of the same heat-resistant material as the nozzle body 3. However, although this substantially truncated conical cylinder 17 is required to have heat resistance, the nozzle body 3 is slightly inferior in heat resistance to the substantially truncated conical cylinder 17, and only the substantially truncated conical cylinder 17 is made of heat resistant material such as metal. It is also possible to consist of a certain thing and fix it to the nozzle body 3 with a screw or the like.

Further, in order to promote air diffusion, the nozzle body 3 has a large diameter expansion ratio in the diffusion region H ₁ corresponding to the diffusion plate 18 of the nozzle body 3 in accordance with the slope of the diffusion plate 18, and approaches the rectifying means 11. Guidance area
In H ₂ , the expansion ratio of the diameter is set small so that air can be easily fed into the rectifying means 11 (Fig. 2).

In the dryer main body 2, 21 is a wind body part, 22
23 is a suction port, 24 is a fan, 25 is a motor, 26 is a rectifier blade, 27 is an air temperature control circuit, 28 is a heater, 29 is a switch, 30 is a switch button, and 31 is an air volume changeover switch.

When the switch 29 is turned on, the motor 25 is activated, the fan 24 is rotated, and air is sucked in from the suction port 23, passed through the heater 28, and then sent to the nozzle 1 from the discharge port 9.
It flows into the inlet 4 of. At this time, the air volume is adjusted using the air volume changeover switch 31. Also switch button 3
When 0 is switched to hot, the heater 28 generates heat and changes the air to hot air.

On the other hand, the air flowing into the inlet 4 of the nozzle 1 is diffused along the surface of the diffuser plate 18 of the substantially truncated conical cylinder 17, and a part of the air flows through the inside of the diffuser plate 18 and the ventilation hole 20 into the substantially truncated conical cylinder 17. It flows out to the rear side. The diffused air is sufficiently diffused to the maximum diameter of the nozzle body 3 and is blown out from the rectifying means 11 as a whole. At this time, the airflow direction is adjusted parallel to the axial direction of the nozzle body 3 by the rectifying means 11, and the air flow is released in a cylindrical shape so that no diffusion occurs outside the nozzle 1.

With this configuration, the strength of the air flow in the dryer main body 2 is reduced by the nozzle 1 having the substantially truncated conical cylinder 17. For example, assuming that the opening area of the face plate of the rectifying means 11 is 60 square centimeters, and the air flow discharged from the discharge port 9 of the dryer body 2 is approximately 1 cubic meter per minute, when this nozzle 1 is used, the wind speed is 3 m/s or less. A damp hairstyle can be kept in place and conveniently dried with minimal disturbance of the hairstyle. On the other hand, even when the dryer body 2 is used at its lowest fan speed, the strength of the wind blown out from the outlet is 8 m/s or more, and using this nozzle 1 is far less likely to disrupt the hair's set. Can be made smaller.

In addition, since the hot air from the nozzle 1 is discharged by the rectifying means 11 in a cylindrical shape having the same shape as the nozzle, the hair can be held and set at certain points without reducing the drying efficiency.

Further, since the approximately truncated conical cylinder 17 has a smaller diameter on the inlet 4 side of the nozzle body 3 and a larger diameter on the outlet 5 side, and has a ventilation hole 20 formed in the peripheral wall, the rib body of the nozzle body 3 Since uniform air is obtained throughout the inside, disturbances such as setting can be eliminated.
In addition, by making the wind speed uniform, the ribs of the rectifying means 11 can be spaced at equal intervals, which improves the appearance of the nozzle 1. Moreover, since the ribs are equally spaced, there are fewer areas where hair pins etc. can easily enter. Increased safety.

A second embodiment of the invention is shown in FIGS. 6 and 7. That is, in the first embodiment, the nozzle body 3' and the flow straightening means 11' are formed separately from resin materials, and the circumferential groove 32 is formed on the outer periphery of the outlet 5' of the nozzle body 3'. A pawl 33 is provided on one opposing portion of the opening 1, and the pawl 33 is engaged with the circumferential groove 32, thereby making it detachable. Rectifying means 1
1', when the edge A of the rectifying means 11' in the direction perpendicular to the claw 33 is pushed in the direction of arrow B, the claw 33 opens outward due to the elasticity of the resin and can no longer be removed. If it is installed in the opposite direction, it can be pushed in from the front of the outlet 5'.

When drying long hair such as a woman's hair, by removing the straightening means 11' and inserting the nozzle body 3' into the hair, hot air is applied not only from the surface but also from within the hair bundle. A plowing effect can be obtained using a comb, etc., and the effect is even greater when the air volume is increased.

In addition, in this invention, the nozzle may be provided integrally with the dryer main body.

〔Effect of the invention〕

According to the hair dryer nozzle of this invention,
The substantially truncated conical cylinder suppresses the speed on the outlet side and prevents disturbance of the set, and the rectifying means prevents diffusion outside the nozzle, so drying efficiency is not reduced.
In addition, since the approximately truncated conical cylinder has a smaller diameter on the inlet side of the nozzle body and an enlarged diameter on the outlet side, and has ventilation holes formed in the peripheral wall, the inside of the rib body of the nozzle body is uniform throughout. Since the wind can be obtained, disturbances such as setting can be eliminated. In addition, by making the wind speed uniform, the ribs of the flow straightening means can be spaced at equal intervals, which improves the appearance of the nozzle.Furthermore, since the ribs are spaced evenly, there are fewer areas where hair pins can easily enter, improving safety. It has the effect of increasing

[Brief explanation of drawings]

FIG. 1 is a sectional view of the first embodiment of the present invention, FIG. 2 is a sectional view of its nozzle, FIG. 3 is a front view of the inlet, FIG. 4 is a sectional view taken along the line of FIG. 6 is a sectional view of the second embodiment, FIG. 7 is a front view thereof, and FIG. 8 is a sectional view of the conventional example. DESCRIPTION OF SYMBOLS 1... Nozzle, 3... Nozzle body, 4... Inflow port, 5... Outlet port, 11... Rectification means, 15...
Annular rib, 17... substantially truncated conical cylinder, 20... ventilation hole.

Claims (1)

[Claims] 1. A nozzle body having a small-diameter inlet and a large-diameter outlet, and a nozzle body disposed approximately coaxially within the nozzle body, with the inlet side having a small diameter and the outlet side having a large diameter, and having a diameter on a peripheral wall portion. A substantially truncated conical cylinder having a ventilation hole formed therein; and a substantially truncated conical cylinder provided at equal intervals at the outlet to rectify the diffused wind by the substantially truncated conical cylinder in one direction, and the entire body to be concave toward the inside of the outlet. A hair dryer nozzle comprising a rectifying means having a curved rib body.