EP2620073A1 - Hair care device - Google Patents

Abstract

The device has mold parts (1a, 1b) for rolling and shaping hairs. The mold parts are fixedly connected with each other at an end, and run in a fixed distance relative to each other. An inner surface of one of the parts (1a), which is turned towards the other part (1b), includes a heat insulating coating (3a). An inner surface of the latter part, which is turned towards the former part, includes another heat insulating coating (3c). The two mold parts are provided with respective cooling elements (3c, 3d) e.g. Peltier elements.

Description

The present invention relates to a hair care device having at least a first molded part and a second molded part for winding and shaping hair.

Hair care devices that are capable of shaping hair into waves are well known. Frequently, such hair care devices have firmly connected moldings on which the hair to be treated are formed. For example, the transcript discloses WO 2008/028941 A2 a hair care device with at least two moldings having rounded hair conditioning surfaces.

A disadvantage of the conventional hair care devices for shaping curls and / or waves, however, is usually that on the inner surfaces of the moldings, which are arranged opposite each other, the hair to be treated much longer applied than on the other surfaces of the moldings. As a result, the hair applied to the inner surfaces is exposed to the high temperatures of the moldings much longer than the hairs resting on the remaining surfaces, as a result of which the hairs resting on the inner surfaces disadvantageously heat up to a higher temperature than the remaining hairs. In addition, the opposite surfaces of the moldings heat each other, while in the other surfaces of the mold parts, the external environment, in particular the waste heat radiation, ensures rapid cooling of these surfaces. On the inner surfaces of the moldings is so disadvantageous the risk of overheating of the adjacent hair.

Object of the present invention is thus to provide an improved hair care device, which is characterized by a lower risk of overheating of the hair to be treated on the inner surfaces of the moldings.

This object is achieved by a hair care device having the features of claim 1. Advantageous developments of the invention are the subject of the dependent claims.

According to the invention a hair care device is provided, in particular for curling and / or wave formation, a first molded part and a second molded part for winding and forming hair. The first and the second molded part are fixedly connected to each other at one end and extend at a fixed distance from each other. An inner surface of the first molded part, which faces the second molded part, comprises at least a first heat-insulating element.

At the opposite inner surfaces of the moldings are the hair to be treated longer than at all other surfaces of the moldings. Due to the first heat-insulating element, which is arranged on the inner surface of the first molded part, the risk of overheating of the hair on this inner surface can be counteracted with advantage. In particular, the first heat-insulating element reduces the surface temperature of the inner surface of the first molded part, so that the hair to be treated on this inner surface are not exposed to high temperatures, which could lead to damage to the hair to be treated.

The moldings are fixed at one end or firmly connected to each other. This means that the molded parts are not mutually movable due to this fixed and fixed attachment. For this purpose, the molded parts are attached and mounted, for example, at the connected end to a common handle part. The individual components of the hair care device, such as the handle part and the molded parts, are fixed and fixed together and fixed immovably to each other.

The moldings are at a distance from each other. This means that the shaped parts are not in direct contact with each other except for the connected end and are not formed adjacent to each other. The molded parts are therefore arranged fixed to one another such that a fixed distance between the molded parts is predetermined. The distance between the moldings forms in particular a gap and ensures the insertion and insertion of the hair to be formed between the moldings for winding the hair around the moldings. The inner surface of the first molded part is aligned in the direction of the distance or gap. The gap therefore separates the molded parts completely apart from one another up to the firmly connected end.

The distance is preferably formed correspondingly large depending on the device type. For example, the distance is greater in a Wellenformer than a curler.

Preferably, the hair care appliance has a longitudinal extension into which the molded parts and, if appropriate, the grip part extend. The moldings are preferably parallel to each other and at a distance from each other. At an opposite end of the handle parts of the mold parts, an opening between the mold parts is formed so that the hair to be formed between the mold parts can be inserted through this opening. In particular, the hair to be formed can thus be inserted between the first molded part and the second molded part. For this purpose, the hair to be treated are guided into the opposite inner surfaces of the molded parts between them.

In a further preferred embodiment of the invention, the hair care device is formed axially symmetrical along its longitudinal extent. Preferably, the hair care device is axisymmetric at least in the region of the molded parts. For example, the first molded part and the second molded part are formed with respect to their distance mirror-symmetrical to each other. Particularly preferably, the first molded part and the second molded part are formed axially symmetrical with respect to their cross section. Through this axisymmetric, preferably mirror-symmetrical design of the hair care device in the region of the molded parts, the user can advantageously be ensured a direction-independent application of the hair care device.

In a preferred development of the invention, the first heat-insulating element is a heat-insulating coating or a cooling element.

The heat-insulating coating is preferably applied at least partially on the inner surface of the first molded part. Particularly preferably, the heat-insulating coating is arranged on the entire inner surface of the first molded part.

The cooling element is preferably integrated in the first molded part. In this case, a surface of the cooling element forms at least partially the inner surface of the first molding. In this case, the surface of the cooling element and the inner surface of the first molded part preferably merge seamlessly, without steps and edges, so that overall the inner surface of the first molded part forms a stepless surface. This advantageously reduces the risk of damage to the hair to be treated, as may occur, for example, on an edge.

In a preferred development of the invention, the first molded part comprises a second heat-insulating element. In this case, the first molding includes both a first heat insulating member and a second heat insulating member. The second heat-insulating element is preferably a heat-insulating coating or a cooling element.

For example, the first heat insulating member is a heat insulating coating disposed on or on the inner surface of the first molding. The second heat-insulating element is, for example, a cooling element integrated in the first molded part. In this case, a surface of the cooling element is preferably arranged adjacent to the inner surface of the first molded part and thus to the first heat-insulating element. Thus, the heat possibly occurring during prolonged use of the inner surface of the first molded part can be delivered to the cooling element via the heat-insulating element. The surface temperature of the inner surface of the first mold part can thus be kept low, preferably by means of the heat-insulating coating and by means of the cooling element.

In a preferred development of the invention, an inner surface of the second molded part, which faces the first molded part, comprises at least one second or third heat-insulating element. This heat insulating member is preferably a heat insulating coating or a cooling member.

In this case, the first molded part accordingly comprise at least a first heat-insulating element and optionally a second heat-insulating element and the second molded part at least one second or third heat-insulating element. Preferably, the inner surfaces of the two mold parts lie opposite each other, wherein the inner surfaces are separated only by the distance or the gap between the two mold parts. The first is preferred heat-insulating member and the third heat-insulating member each having a heat-insulating coating, which is respectively disposed on the respective inner surface of the respective molded part, while the optional second heat-insulating member is a cooling element.

In a preferred development of the invention, the second molded part comprises a fourth heat-insulating element, which is preferably a cooling element or a heat-insulating coating. For example, the first molding at least the first heat insulating member and the second heat insulating member and the second molding at least the third heat insulating member and the fourth heat insulating member. In this case, the first heat-insulating element and the third heat-insulating element are each preferably a heat-insulating coating, which is respectively arranged on the respective inner surface of the respective molded part. In this case, the second heat-insulating element and the fourth heat-insulating element are each particularly preferably a cooling element which is respectively integrated in the respective molded part and in direct contact with the respective inner surface of the respective molded part.

In a preferred embodiment of the invention, in the case of using a cooling element as a heat-insulating element, the cooling element is a Peltier element. Alternatively, the cooling element may be an active cooling element which ensures active cooling, for example by means of air, water and / or oil.

In a preferred embodiment of the invention, the first, second, third and / or fourth heat-insulating element is arranged in each case movable on the respective molded part. Under movably arranged is to be understood in particular that the first, second, third and / or fourth heat-insulating element is mounted movable relative to the respective molded part. For example, the first, second, third and / or fourth heat-insulating element by means of, for example, a mechanical or electrical switch by the user in the associated molding retractable, so that the one or more heat-insulating elements are retracted in the retracted state, for example, in the associated molding. By means of the actuation of the corresponding switch, the heat-insulating element (s) can then be switched on, in particular extended, during the application of the hair-care appliance.

In a preferred development of the invention, the first, second, third and / or fourth heat-insulating element is suitable for holding the hair to be formed. Since the one or more heat-insulating members are preferably arranged on the respective inner surface of the associated molding, the hairs to be formed can be held in the gap between the moldings. For example, the one or more heat-insulating elements as bristles or hairs, such as brush hairs are formed. These ensure a gripping of the hair to be treated. In addition, these elements preferably fulfill a distance function in that the bristles or hairs are arranged close enough to each other, whereby in particular a direct contact of the hair to be formed on the inner surfaces of the moldings and thus in particular at the hottest area of the moldings can be avoided or at least reduced.

In a preferred embodiment of the invention, the first, second, third and / or fourth heat-insulating element is designed yielding. A compliant embodiment is to be understood in particular that the one or more heat-insulating elements are designed to be flexible and / or elastic in itself. For example, the one or more heat-insulating elements on an elastic material or are designed to be elastic in shape, so that upon application of a force on the one or more heat-insulating elements, these yield reversibly according to the force. In its form of elastic design may mean, for example, that the one or more heat-insulating elements comprise a hollow body through which a reversible compression of the one or more heat-insulating elements is possible. Alternatively, it is possible that below the heat-insulating or in the associated mold part, a cavity is formed, in which the one or more heat-insulating elements are reversibly pressed under the action of a force.

In a preferred development of the invention, the first molded part and the second molded part are heatable for shaping the hair. Preferably, the moldings to temperatures up to 200 ° C, preferably between 100 ° C and 200 ° C, heatable. The moldings are heated when using the hair care device. The hairs to be formed are wound for molding around the moldings, for example in the form of an eight. By heating the mold parts and by a preferably oval or round cross-section of the moldings, the hair can be shaped, for example, like a water wave with a satisfactory result.

In a preferred development of the invention, the heat generated by the molded parts can be delivered to the surfaces of the respective molded part facing away from the respective inner surface of the hair to be formed. Since at least one heat-insulating element is arranged on the respective inner surfaces, the heat of the molded parts is discharged essentially and for the most part over the remaining surfaces of the molded parts. This means that the hair to be treated absorb the heat needed to form the hair substantially over the surfaces of the moldings except the inner surfaces.

In a preferred development of the invention, the surface temperature at the inner surface of the first molded part and the surface temperature at the inner surface of the second molded part are lower than the surface temperature at the remaining surfaces of the respective molded part. Preferably, the surface temperature of the molded parts except the inner surfaces is formed almost homogeneously over the surfaces. With the exception of the respective inner surface, the surface of the molded parts thus preferably has a substantially uniform temperature in each case. Substantially uniform here means in particular that the temperature in the cross-section over the surface can have application-related or device-related slight temperature fluctuations. However, these temperature fluctuations are preferably less than 10 K.

In a preferred embodiment of the invention, in each case at least the inner surfaces of the first molded part and the second molded part, which are arranged opposite one another, in each case at least partially a convex curvature. Preferably, the mold parts each have an oval or round cross-section. The molded parts are curved in such a way that breaking or damage to the hair during winding around the molded part and during molding on the molded article is prevented. For this purpose, for example, curvature or rounding of the molded parts is designed to be correspondingly large.

In a further preferred embodiment of the invention, the hair care device is used to wave or curls of hair. The hair care device is therefore preferably a wave shaper or curler.

Figur 1

einen schematischen Querschnitt eines Ausführungsbeispiels eines erfindungsgemäßen Haarpflegegeräts, und

Figuren 2A und 2B

jeweils ein schematischer Schnitt eines Ausführungsbeispiels eines erfindungsgemäßen Haarpflegegeräts entlang der Linie A-A des Ausführungsbeispiels der Figur 1.

Further advantages, advantageous embodiments and further developments of the hair care device will become apparent from the following in connection with the Figures 1 and 2 described embodiments. Show it:

FIG. 1

a schematic cross section of an embodiment of a hair care device according to the invention, and

FIGS. 2A and 2B

in each case a schematic section of an embodiment of a hair care appliance according to the invention along the line AA of the embodiment of FIG FIG. 1 ,

In the exemplary embodiments and figures, identical or identically acting components may each be provided with the same reference numerals. The illustrated components and their proportions to each other are basically not to be considered as true to scale. Rather, individual elements such as layers, parts, elements, components and areas for exaggerated representability and / or for better understanding can be shown exaggerated thick or large dimensions.

In FIG. 1 a longitudinal view of a hair care device 10 is shown. The FIGS. 2A and 2B each show an embodiment of a cross section along the line AA of the hair care device of FIG. 1 ,

The hair care device 10 of the FIG. 1 has a first mold part 1a and a second mold part 1b, which are fixed by a handle part 2 or firmly connected to each other. In particular, the mold parts 1a, 1b are not movable relative to the handle part 2 and not relative to each other. The mold parts 1a, 1b are arranged at a fixed distance from each other. In particular, a gap is formed between the first molded part 1a and the second molded part 1b, in which, for shaping the hair, they are introduced along the longitudinal extension of the hair-care appliance 10 between the molded parts 1a, 1b.

For curling the hairs to be formed, they are wound around the mold parts 1a, 1b, e.g. in the form of an eight. So that the hairs to be formed not only retain their curl shape for a short time, the molded parts 1a, 1b are heatable. For example, at least in some areas, surfaces of the mold parts 1a, 1b heat to a temperature which is above or equal to the deformation temperature of hair. In this case, inner surfaces 4a, 4b of the molded parts 1a, 1b, which are arranged opposite one another, have a heat-insulating element. As a result, these inner surfaces 4a, 4b of the molded parts 1a, 1b heat up less strongly than the remaining surfaces 4 of the molded parts 1a, 1b. With the heat-insulated inner surfaces 4a, 4b of the molded parts 1a, 1b, on which the hair to be treated during the application of the longest, the risk of damage to the hair can be reduced with advantage.

The mold parts 1a, 1b, in particular the heat-insulating elements 4a, 4b, are in connection with the FIGS. 2a, 2b each explained a cross section through the mold parts 1a, 1b of a hair care device, for example, the embodiment of FIG. 1 show along the line AA.

The moldings of FIG. 2A each have a heat-insulating element 3a, 3c on their inner surface. In particular, the inner surface of the first mold part 1a, which faces the second mold part 1b, and the inner surface of the second mold part 1b, which faces the first mold part 1a, each have a heat-insulating coating 3a, 3c. The heat-insulating coating is preferably applied in each case completely on the respective inner surface. The remaining and remaining surfaces 4 of the molded parts 1a, 1b are preferably free of the heat-insulating coating 3a, 3c.

Due to the heat-insulating coating 3a, 3c on the inner surfaces of the mold parts 1a, 1b, the heat generated from the mold parts is discharged to the hairs to be treated substantially over the surfaces 4 of the mold parts 1a, 1b excluding the inner surfaces. In particular, on the inner surfaces of the moldings, where the hair to be treated the longest, the surface temperature is lower than at the other surfaces 4, whereby the risk of overheating of the hair can be counteracted.

This in FIG. 2B illustrated embodiment differs from the embodiment of FIG. 2A in that in addition to the heat-insulating coatings 3a, 3c in each mold part 1a, 1b as a further heat-insulating element 3b, 3d per a cooling element is integrated. The cooling element 3b, 3d is preferably in each case in direct contact with the respective heat-insulating coating 3a, 3c, so that any heat emitted by the hairs to the heat-insulating coating 3a, 3c is conveyed to the respective molded part 1a, 1b by means of the respective cooling element 3b, 3d can be delivered. This can further ensure that the inner surfaces of the mold parts 1a, 1b are limited in their surface temperature upwards, so that damage to the hair can be avoided. In particular, the risk of overheating of the hair, when introduced into the hot gap of the hair care device, is reduced by the lower temperature at the inner surfaces compared to the remaining surfaces of the mold parts 1a, 1b.

The cooling elements 3b, 3d are preferably each a Peltier element.

By means of the cooling elements 3b, 3d is advantageously a cooling 5 in the direction of inner surfaces of the mold parts 1a, 1b and in the direction of gap between the mold parts 1a, 1b instead. In addition, a transport of waste heat 6 takes place in the direction away from the inner surfaces of the molded parts 1 a, 1 b or in the direction away from the gap between the molded parts 1 a, 1 b. The waste heat 6 thus transported can be discharged with advantage over the remaining surfaces 4 of the mold parts 1 a, 1 b excluding the inner surfaces of the hair to be treated, so that a shaping of the hair to curls or waves can be guaranteed.

The explanation of the hair care device according to the invention with reference to the embodiments described above is not to be regarded as limiting the invention to these. Rather, the invention encompasses any novel feature as well as any combination of features, including in particular any combination of features in the claims, even if this feature or combination itself is not explicitly stated in the claims or the embodiments.

Drawing reference list

10

Hair care device

1 a

first molding

1b

second molding

2

handle part

3a

first heat-insulating element

3b

second heat insulating element

3c

third heat-insulating element

3d

fourth heat-insulating element

4a

Inner surface of the first molded part

4b

Inner surface of the second molding

4

remaining surfaces of the respective molding

5

Cooling

6

waste heat

Claims (13)

Hair care appliance (10), in particular for curling and / or wave formation, with at least a first molded part (1a) and a second molded part (1b) for winding and forming hairs which are fixedly connected to one another at one end and at a fixed distance from each other run, wherein an inner surface (4a) of the first mold part (1a), which faces the second mold part (1 b) comprises at least a first heat-insulating element (3a). Hair care appliance according to claim 1, wherein
the first molded part (1a) comprises a second heat insulating element (3b). Hair care appliance according to one of the preceding claims, wherein
an inner surface (4b) of the second mold part (1b) facing the first mold part (1a) comprises at least a second or third heat-insulating element (3c). Hair care appliance according to claim 3, wherein
the second molded part comprises a fourth heat insulating element (3d). Hair care appliance according to one of the preceding claims, wherein
the first, second, third and / or fourth heat-insulating element (3d) are each a cooling element or a heat-insulating coating. Hair care appliance according to claim 5, wherein
the cooling element (3a, 3b, 3d) is a Peltier element or an actively coolable element. Hair care appliance according to one of the preceding claims, wherein
the first molded part (1a) and the second molded part (1b) are heatable for shaping the hair. Hair care appliance according to claim 7, wherein
the heat generated by the molded parts (1a, 1b) can be delivered to the hairs to be formed at the surfaces (4) of the respective molded part (1a, 1b) facing away from the respective inner surface (4a, 4b). Hair care appliance according to one of the preceding claims 7 or 8 wherein
the surface temperature at the inner surface (4a) of the first molded part (1a) and the surface temperature at the inner surface (4b) of the second molded part (1b) are lower than the surface temperature at the remaining surfaces (4) of the respective molded part (1a, 1b) , Hair care appliance according to one of the preceding claims, wherein
the inner surface of the first mold part (1a) and the inner surface of the second mold part (1b), which are arranged opposite each other, each have a convex curvature at least in regions. Hair care appliance according to one of the preceding claims, wherein
the first, second, third and / or fourth heat-insulating element (3a, 3b, 3c, 3d) is in each case movably arranged on the respective molded part (1a, 1b). Hair care appliance according to claim 11, wherein
the first, second, third and / or fourth heat-insulating element (3a, 3b, 3c, 3d) in the associated molding (1a, 1b) is retractable. Hair care appliance according to one of the preceding claims, wherein
the first, second, third and / or fourth heat-insulating element (3a, 3b, 3c, 3d) is made yielding.

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