CN116158607A - Hairdressing appliance with integrated thermal insulation mechanism - Google Patents

Abstract

The invention relates to a hairdressing appliance (1) of the straightener type comprising: - two arms (2, 3) mounted on a hinge (4), said At least one arm (2) of the two arms (2, 3) comprises a housing (21) having a gripping area (7) and a handling area (8), the handling area (8 ) is integrated with a heating plate (5), the arms (2, 3) are configured to form a clamp that allows the heating plate (5) to shape the hair, - a thermal insulation mechanism (10), the The heat insulation mechanism (10) has an abutment area (9), and the abutment area (9) is used to at least partially cover the distal end portion (8') of the treatment area (8), the distal end portion (8') is opposite to the gripping area (7), the inner surface (101) of the heat insulation mechanism (10) is arranged opposite to the outer surface (201) of the housing (21), and is opposite to the The outer surfaces (201) are installed at intervals.

Description

Hairdressing appliance with integrated thermal insulation mechanism

This application is a divisional application of the Chinese invention patent application with the application number 201580059676.0, the application date is November 16, 2015, and the invention title is "hairdressing equipment with integrated heat insulation mechanism".

technical field

The present invention relates to the technical field of hairdressing appliances for styling hair. The invention relates more particularly to the technical field of devices of the straightener type comprising at least one heated straightening plate.

Background technique

Various types of straighteners are known which comprise two cheeks mounted on a hinge so as to form a clamp movable between an open position and a closed position. Straighteners known today generally comprise a heating element in each cheek adjacent to the straightening plate, said assembly being contained in the housing of the cheek. During the use of the device, the straightening plate is often heated to above 130° C., which leads to an increase in the temperature of the housing by heat conduction. When it comes to steam straighteners, the presence of steam chambers in the cheeks further increases the temperature of the housing.

However, depending on the use of these devices, some hairdressers or users tend to use one hand to keep the tongs closed in order to be able to achieve curls or to obtain better straightening results, and said use of one hand The retaining effect is better performed at the opposite end of the hinge, where the hottest area of the housing is. Direct contact of fingers with this part of the housing presents a risk of burns or at least discomfort when in contact with this part.

In order to overcome this disadvantage, several documents are known that use thermal insulation systems on the housing of the cheeks in order to avoid direct contact with the fingers.

For example, document EP2433519 describes a straightener comprising two cheeks mounted on a hinge, each cheek comprising, on the end opposite the hinge, a part embedded in the housing. This part allows a comfortable grip of the device with the thumb when the device is closed and at the same time provides thermal insulation of the case. However, such integration of parts in the housing is not sufficient for temperature reduction due to heat conduction towards the parts. It is reasonable to consider thermal insulation mechanisms separated by a certain distance from the housing.

Contents of the invention

The object of the present invention is to at least partly overcome the aforementioned disadvantages and to provide a hairdressing appliance with less risk of burns and a more comfortable feel when in contact with the housing.

Another object of the present invention is to provide a hairdressing appliance comprising a compact thermal insulation which is inexpensive and easy to produce in large quantities.

Another object of the present invention is to provide an ergonomic hairdressing appliance which is easy to handle during use.

These objects are achieved by a hairdressing appliance of the straightener type comprising

- two arms mounted on a hinge, at least one of said two arms comprising a housing with a gripping area and a handling area integrated with a heating plate, said arms being configured for forming the tongs that allow the heating plate to shape the hair,

- Thermal insulation means having an abutment area for at least partially covering a distal end of the treatment area, the distal end being opposite to the gripping area.

The inner surface of the thermal insulation mechanism is disposed opposite to the outer surface of the housing and installed at a distance from the outer surface.

The thermal insulation means is thus arranged approximately parallel to the housing and conforms to the shape of the housing. The spacing between these parts allows eliminating or at least limiting the heat conduction between the heated housing and the thermal insulation. The abutment area spaced from the housing is kept at ambient temperature, even when the device is in use, which allows gripping of the pliers in said abutment area without burning or discomfort.

According to a first embodiment of the invention, the thermal insulation means are arranged to cover only the distal end of the treatment area. The distal portion refers to the end opposite to the gripping area. Said distal portion corresponds to an area which is often contacted by the user's thumb and forefinger in order to close the jaws well during the straightening process; according to a second embodiment, said insulating means are configured to cover Treat the entire surface of the area. This configuration has the advantage that scalding of the scalp during use is completely avoided and protection is ensured in a larger area of the device.

Furthermore, said inner surface is spaced from said outer surface by a minimum distance D, said minimum distance D being between 0.5mm and 4mm, in order to minimize heat conduction. The distance may be substantially constant in the space between the inner surface and the outer surface.

Advantageously, said device comprises fixing means allowing to connect said insulating means and said arm in a permanent manner. The fixing mechanism is realized by at least one of the following methods: tightening, riveting, fitting and pasting.

According to a feature of the invention, said insulation means mainly comprises a material with a thermal conductivity that is lower than that of said housing. The thermal insulation means can consist of this material.

To further reduce the burning sensation, the thermal insulation means includes a covering on the abutment area. The cover layer is a thin layer, which may consist of a material such as silicone or rubber, deposited on said abutment area by molding. Furthermore, the covering layer mainly consists of a material whose thermal conductivity is lower than that of the thermal insulation. Or according to a variant, said thermal insulation means can consist of this material.

Advantageously, said covering layer is fixed to said insulating means by moulding.

Furthermore, the covering layer has a surface equipped with ribs for an anti-slip effect.

Advantageously, the covering layer has a surface with a minimum width of between 10 mm and 45 mm.

According to a characteristic of the invention, said arm comprises vaporization means and steam distribution means for distributing steam towards the lock of hair. This steam hairdressing device has a hot zone generated by a relatively high temperature evaporation chamber contained in the housing. It is especially effective to use thermal insulation mechanisms in such devices to achieve thermal protection during the use of the device.

Description of drawings

The invention will be better understood by studying the embodiments given by way of non-limiting example with reference to the accompanying drawings, in which:

- Figure 1 is a perspective overall view of a hairdressing appliance comprising an accessory according to a first embodiment of the invention,

- Figure 2 is a view of the arm of the device according to Figure 1, said device having thermal insulation means;

- Figure 3 is a perspective view of a first embodiment according to the invention with the thermal insulation mechanism disassembled,

- Figure 4 is a detailed view of the thermal insulation mechanism according to the first embodiment,

- Figure 5 is a front view of the arm of the device with the covering,

- Figure 6 is a variant of the hairdressing device,

- Figure 7 is a front view of an arm of a device according to a second embodiment,

- Figure 8 is a sectional view along the axis X of the arm shown in Figure 7 .

Detailed ways

As shown in FIG. 1 , the hairdressing appliance 1 is of the straightener type and comprises two arms 2 , 3 pivotally articulated to each other by means of a pivot connection 4 of the hinge type. Thus, the two arms 2, 3 constitute a clamp which allows an angular separation between the two arms 2, 3, or a closeness of the two arms 2, 3 to each other, in order to allow clamping. Tightly set the hair between the two arms 2,3.

Said arms 2, 3 each comprise a housing 21, 31 and a heating system. In addition to an electrical heating mechanism (not shown) and a thermal control and regulation mechanism (not shown), each of these heating systems includes a heating plate 5, 6 having a flat surface such as that shown in FIG. shape. These flat heating surfaces are arranged on the inner faces of the arms 2,3. Thus, when clamped, the two flat heating surfaces are positioned opposite each other and at the same time allow to achieve a thermal treatment of the hair in order to achieve straightening of the hair. Thus, each arm 2, 3 has a handling area 8 corresponding to the part in which the heating plate 5, 6 is integrated, and a gripping area 7 located between said handling area 8 and said holding area 7. The part between the above hinges 4.

As shown in Figures 1 to 5 and according to a first embodiment, one of the two arms 2 comprises thermal insulation means 10 located at the distal end 8' Said insulating means 10 are thus arranged at the end opposite to the hinge 4 of said arm 2 .

As shown in FIGS. 2 and 3 , the insulating mechanism 10 is a substantially flat part with an abutment area 9 accessible from the outside of the housing 21 . The size of this abutment area 9 is ideally greater than or equal to the size of the thumb, which allows simple abutment of the thumb without aiming. For example, the abutment area 9 has a width between 10 mm and 45 mm. The value of the area of the abutment area is between 2 cm ² and 16 cm ² .

The thermal insulation 10 is mounted at a distance from the housing 21 and has an inner surface 101 which is permanently arranged opposite the outer surface 201 of the housing 21 . The inner surface 101 is separated from the outer surface 201 by a minimum distance D between 0.5mm and 4mm. To this end, the thermal insulation mechanism 10 includes fastening means 15 , 25 for connecting the thermal insulation mechanism 10 to the housing 21 without enabling the thermal insulation mechanism 10 to be detached. According to the example shown, the fastening means 15 , 25 are riveted by means of pins 15 on the heat insulating means 10 and holes 25 on the housing 21 . Alternatively, screw-on, snap-on or adhesive-type mechanisms are also conceivable.

In this example, the insulating means 10 and the pins 15 form a single piece of polyamide (PA) with or without glass fiber doping, or of polyterephthalic acid with or without doping. Butanediol ester (PBT), or realized by polysulfone resin (PSU).

According to a variant of the first embodiment, said insulating means 10 comprise, on the abutment area 9, a covering layer 9' Said covering layer 9' is a molding realized in silicone or rubber material on said abutment area 9 in order to better insulate the thermal insulation mechanism 10 from heat. Furthermore, silicone or rubber allows a pleasant tactile sensation and better resistance to the temperatures used to achieve molding. In case the cover layer 9' Said cover layer 9' may also have a surface equipped with ribs, as shown in Fig. 1 , comprising for example raised lines which allow to facilitate the handling of the device and reduce the burning sensation.

In the case of a device equipped with a vaporization system such as that shown in FIG. 6, the device 1 comprises a base 1000 having a fluid container 19, a portable unit 100 comprising a fluid vaporization mechanism 7' comprising a vaporizer for distributing vapor towards the hair. Dispensing means 22, said device comprising a cable 24 of at least one channel for the passage of fluid, said at least one channel being arranged between the fluid container 19 and the evaporation means 7'. The base is separate from the portable unit and can be placed on a work surface. The configuration of such a device is described in patent 2967017 filed by the applicant and needs no further elaboration.

According to this configuration, the insulation mechanism 10 is arranged on the arm 2 comprising the evaporation mechanism 7' and the steam distribution mechanism 22. The use of thermal insulation in this part of the device allows to create a cooler area relative to the rest of the housing heated by the steam. As an example and according to tests carried out in the laboratory, the presence of thermal insulation allows to reduce the temperature on the abutment area relative to the housing by approximately 30°C.

The second embodiment of the present invention is shown in Fig. 7 and Fig. 8, wherein the heat insulation mechanism 10 completely covers the treatment area 8, and covers the distal end 8' of the treatment area 8, and the heat insulation mechanism 10 is roughly attached to fit the shape of the housing 21. The inner surface of the thermal insulation mechanism 10 is separated from said outer surface 201 of the housing by a minimum distance D, said minimum distance D being between 0.5mm and 4mm. The heat insulation mechanism 10 is connected to the housing through the same fixing mechanism as the first embodiment.

In case the device is equipped with a vaporization system such as that shown in figure 8, the thermal insulation mechanism 10 is arranged on the arm 2, said wall 2 comprising the fluid vaporization mechanism 7' and the vapor distribution mechanism 22.

Of course, the invention is by no means limited to the shown and described embodiments, given by way of example only. Modifications, in particular with respect to the composition of different elements or by replacement of technical equivalents, are possible without departing from the scope of protection of the invention.

Claims (7)

1. A hair-cutting apparatus (1) of the straightener type, the hair-cutting apparatus (1) of the straightener type comprising:

two arms (2, 3) mounted on a hinge (4), at least one (2) of the two arms (2, 3) comprising a housing (21), the housing (21) having a grip area (7) and a treatment area (8), the treatment area (8) being integrated with a heating plate (5), the arms (2, 3) being configured for forming a clamp allowing the heating plate (5) to shape hair,

-an insulating means (10), said insulating means (10) having an abutment region (9), said abutment region (9) being intended to at least partially cover a distal end (8 ') of said treatment region (8), said distal end (8') being opposite to said gripping region (7),

an inner surface (101) of the insulating means (10) is arranged opposite an outer surface (201) of the housing (21) and is mounted in spaced relation to the outer surface (201), the insulating means (10) is thus arranged parallel to the housing (21) and conforms to the shape of the housing (21), and the insulating means (10) comprises a cover layer (9 ') on the abutment region (9), the cover layer (9') mainly comprising a material having a thermal conduction less than that of the insulating means (10), and the inner surface is spaced from the outer surface by a minimum distance D between 0.5mm and 4mm so as to minimize thermal conduction, and the minimum distance is substantially constant in the space between the inner and outer surfaces, and the insulating means (10) comprises fixing means (15, 25) for connecting the insulating means (10) to the housing (21) and substantially spacing the insulating means (10) from the housing (21) by a constant distance.

2. The apparatus according to claim 1, characterized in that the securing means (15, 25) are realized by at least one of the following means: screwing, riveting, assembling and pasting.

3. The apparatus according to claim 1 or 2, characterized in that the heat insulation means (10) mainly comprise a material having a heat conduction smaller than that of the housing (21).

4. The apparatus according to claim 1 or 2, characterized in that the cover layer (9') is fixed with the insulating means (10) by moulding.

5. The device according to claim 1 or 2, characterized in that the cover layer (9') has a surface provided with ribs.

6. The device according to claim 1 or 2, characterized in that the cover layer (9') has a surface with a minimum width of between 10mm and 45 mm.

7. The device according to claim 1 or 2, characterized in that the arm (2) comprises an evaporation mechanism (7') and a steam distribution mechanism (22) for distributing steam towards the hair tresses.

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