EP0897275B1 - Hair styling device and process - Google Patents

Abstract

A device for curling hair has a handle to which is attached a hair heating member 6 and a pressure member 8 for clamping the hair against the heating member. A generally arcuate styling edge 10 is provided in the region of the heating and/or pressure member. Hair is drawn across the edge to cause stretching of one side of the hair which causes curling. The hair may subsequently pass over a cooling member (30, Fig 3) to facilitate setting of the curls. The device may take the general form of a curling tong (Figs 5-12) having an elongate heater of generally elliptical section and provided with hair guiding ribs, the styling edge being provided on the edge of an elongate clamp which can engage the heater and is pivoted to the handle.

Description

The present invention relates to a hair styling device according to the features of the preamble of claim 1.

Devices and methods are known several times from the prior art. So revealed for example EP 0 021 224 B1 a hair treatment device in the form of a Gas curling iron. This consists of an elongated handle part and a heating part, which is connects to the handle. On the handle part is a pressure medium in the form of a swivel hair clip provided. For shaping hair, especially for Curls or waves of hair will become the end of a strand of hair, i.e. the ends of the hair, inserted and clamped between the winding body and the hair holding clip. Subsequently the strand of hair from the tips of the hair to the hairline on the heated bobbin wound. After an exposure time, the hair holding clip is released from the winding body and the curly or wavy strand of hair is pulled off the winding body.

DE 32 15 232 A1 describes a further method for shaping a strand of hair known for this by heating and a hair-shaping device of the type mentioned above. there the air supplied by an air blower is partly via a heating coil of a warm air chamber of a cylindrical winding body and passes through radial hot air outlet openings out again. Through a bypass duct led past the heating winding cooling air enters a cooling air chamber of the winding former. The strand of hair to be shaped is placed around the winding body, which is then moved away from the scalp, the Strands of hair first over the outer wall of the warm air chamber and then over the The outer wall of the cooling chamber slides. The lock of hair is warmed immediately one after the other and chilled. The wave and / or curl shape generated depends on Diameter of the winding body.

Another document - DE-GM 77 26 363 - relates to an Ondulierstab with an electrical heated rod element and a flap movably mounted on it from one with the Negative cross-sectional shape and one with the rod element connected handle.

In the hair styling devices known from the prior art, the diameter is or the shape of the heated winding body determining the type of curl or the Lokken shape, especially for the size of the curls that can be achieved.

From JP-06 253922 A a hair styling device is also known in which a strand of hair between the heating part and a non-heated clip is pulled. The heating part has molding agent at its tip and an oblique adjoining the molding agent Surface, the latter tapering towards the lower part. The shaping of a strand of hair takes place here on the molding means arranged on the heating part and the adjoining one sloping surface. Small hair curls can also be used with the shaping agent in diameter shaped, but the durability of the curls can cause problems.

It is an object of the present invention to provide an improvement over the prior art Hair styling device and a method, in particular for using the hair styling device specify which allows a good curl shaping, the diameter of the Curls and thus the curl type or curl shape regardless of the diameter of the heating part can be produced. Furthermore, the curl or shaft of the strand of hair thus produced is said to be a Get the longest possible shape.

According to the invention this is achieved by a hair styling device with the features of the preamble of claim 1, wherein the shaped element is formed as a molded edge and the molded edge the heating zone and the heat sink is arranged downstream of the mold edge, so that one too shaping strand of hair heated by the heating zone, the warmed strand of hair on the The shaped edge can be shaped and the shaped strand of hair can be cooled on the heat sink. To create a special curl shape, the shape edge is on a separate molding compound intended. By spacing the heating part and the Heat sink is a separate formation of a warm and a cold zone of the hair styling device enables, without a strong mutual influence of the two temperature fields to obtain. By forming the molded element as a molded edge and its Arrangement relative to the heating zone and the heat sink, an agent is specified, which with The variable design of the curl type or curl shape allows for an advantage in a simple manner and is independent of the geometry of the winding body or the heating part.

The design of the heating part can thus advantageously be of any geometry however, it should be ensured that there is good heat transfer from the heating section the hair to be reshaped can take place. The heating part can be gas as well as electrical should be heatable and should heat the hair to at least the forming temperature of the hair. The hair warmed in this way becomes immediately after the leaving the heating zone on the molded edge according to the invention shaped by the Hair redirected at the shape edge and in a streamlined state - under tension - over the Edge of the mold. These shaped, especially curled or wavy Hair, then become a heat sink immediately following the shape edge supplied, this being an active, as well as a passive, without supply of external energy, operable heat sink can be. The hair is left after leaving the Mold edge cooled immediately without further heating and advantageously get an improved Shelf life of curls or waves.

The separate molding means can advantageously with the pressure means, in particular a retaining clip and / or the heat sink. This allows these two Components are formed as an assembly, which on the handle part or Heating part is attachable.

Advantageously, the shaping means can be pivoted at one end, in particular a spring-loaded swivel - similar to a known hair clip - with the Handle part or the heating part to be connected so that the hair comfortably between the heating part and the pivotable molding means can be inserted.

The shape of the mold edge, which is essentially arcuate in cross section, is special beneficial for hair styling. This course can in particular as Circular arcs can be formed with a defined radius over which the to be formed Streak is pulled around; since even a polygonal cross-sectional shape approximates one can represent an arcuate course, is advantageously also a polygonal or similar Cross-section of the form edge possible.

In a particularly advantageous embodiment of the mold edge, a radius is greater than 0.1 mm proposed that is in particular between 0.5 and 5 mm. It goes without saying that here not only an arcuate course as such with a corresponding radius must be trained, but that also a polygonal or similar course with a radius greater than 0.1 mm comparable is meant. Form aids with a Radius of z. B. 0.5 mm advantageously result in small curl diameters, however are with radii of z. B. 3 mm large curl diameter can be produced. With shaped edges with With a radius greater than 5 mm, no curls are created, but waves in the hair. The formation of the mold edge with a radius greater than 0.1 mm is advantageous reversible hair styling without causing damage to the hair, which would arise, for example, from a sharp-edged shape edge.

In a further embodiment of the invention, the shape edge is essentially parallel to Main axis of the hair styling device arranged. Doing so is essentially straight forward trained form edge. This training is advantageous an effective and simple structure of the shape of the edge specified. The pressure medium and the heating part also have an essentially elongated extension on. However, there are also other forms of training the pressure medium and the Heating part possible.

The tangents of the form edge are arranged so that they are smaller at an angle Cut 180 °. On the one hand, this creates a slight deflection of the hair, which over an edge with an obtuse angle, for example 150 °. at a formation of the mold edge with an acute angle, for example 30 °, the hair to be reshaped advantageously deflected strongly when it is over the surface of the Form edge are pulled around. The tangents of the form edge can also be an angle include from 0 °, d. H. be arranged parallel to each other when the shape edge, for example is arranged on the end face of a narrow sheet and one in cross section have semicircular course.

A pressure force is generated on the hair to be reshaped, which is can be inserted between the heating part and the pressure medium. For one thing good heat transfer from the heating part to the hair and on the other hand a clamping force generated on the hair to be reshaped. This clamping force acts as a retaining force applied by the user pulling force with which the hair styling device relative to the Hair is moved.

The mold edge itself can be provided on the pressure means, this as a essentially known form clamp is formed. This is advantageously a simple arrangement of the mold edge proposed, which no other means on the Hair styling device requires more than those that already exist. The Form clamp is in particular as a form clamp movable relative to the handle and / or the heating part trained and for example by a known hinge with the Handle part movably connected.

By an essentially parallel arrangement of the heating part, the mold edge and / or the Heat sink these components can advantageously be spatially close to each other his. This will make the hair to be reshaped from the heating section via the Form edge proposed to the heat sink, which allows a good strengthening of the curls becomes.

To get temperature fields.

In one development of the invention, the molding means and the heat sink are fixed to one another connected and arranged relatively movable to the heating part. This can advantageously the mold with the mold edge and the heat sink as one assembly be formed, which is a simple insertion of the strand of hair in the space between the heating part and the mold.

In a special embodiment of the heat sink, it is made of one material good heat conduction, for example aluminum or a similar material or it consists of an aluminum hollow body with a paraffin filling. This advantageously suggests a good cooling effect for the heat sink, to effectively cool the previously warmed hair or the curls after shaping "Freeze".

To increase the cooling effect, it is proposed to use a heat-conducting heat sink To provide coating and / or to form cooling fins. This will make one advantageously ensures good heat dissipation of the heat sink.

In a special embodiment of the heat sink, it is an actively coolable heat sink intended. This can be done for example by cooling air, which is in the handle part the hair styling device can be generated. Alternatively, the cooling can also be done using a Peltier element or a similar component can be created. This is advantageously a stronger cooling of the previously warmed curls and thus a more stable curling reached.

In a further embodiment of the hair styling device, the heating part and / or the Molding means on the outside of guide and / or spacing means. These funds are formed in particular as ribs and advantageously allow one Guiding the lockable hair strands around the front of the device and to others, as a spacer, secures the user from contact with the warm one Surface of the heating section.

The ribs are arranged essentially transversely to the main axis of the device, so that in each case two adjacent ribs, one surrounding the heating part and / or the molding means Form a channel in which the strand of hair to be formed is advantageously simple is insertable.

At least one rib of the hair styling device is provided as a limiting rib, so that the strand of hair passed around the heating part and / or the shaping means through this Rib against slipping off the heating part and / or the molding agent advantageously is secured.

In a special embodiment of the hair styling device, the two outer ribs are as Limiting ribs formed so that these the other ribs on the heating part and / or Molding means in a plane transverse to the main axis of the device, at least in some areas overtop. As a result, a guide can be placed around an area of the hair styling device Strands of hair reached so that the strands neither forward over the tip can still slide back over the handle of the device.

The ribs are preferably on at least one component, in particular the heating part arched, wavy or arrow-shaped. Through this formation of the ribs is advantageously achieved that the strand of hair that can be guided around this component is a experiences greater friction than on the other component, in particular the mold. This is to avoid that the user strands of hair on the outside of the heating section.

In a special embodiment, these ribs on the heating part are essentially parallel arranged to the main axis of the device. This should advantageously both optical lock as well as a mechanical obstacle, especially due to elevated Frictional resistance are generated by the user, so that the hair just does not have the outside of the heating section pulls.

The ribs, in particular the ribs of the heating part, which are in the are arranged substantially parallel to the main axis of the device, also substantially arranged radially to the main axis of the device. This extends these ribs essentially perpendicular to the outer surface of the device, especially the heating part path.

At least one of the two outer ribs is also designed as a limiting rib, so that this one or both outer ribs the intermediate inner ribs protrude at least in certain areas in an essentially radial direction. So is advantageously an optical distinction between the two outer boundary ribs given by the inner ribs in between.

The at least one limiting rib is particularly advantageously wing-shaped, the rear end of the limiting rib facing the handle part being higher than that front end of the limiting rib facing away from the handle part. This makes it easy Adaptation of the boundary rib to the different cross-sectional areas of the Hair styling device proposed and there are protruding corners and edges of the Limiting rib avoided.

In a special development of the invention, the heating part has directly next to the Heating zone at least one longitudinal rib, which is substantially parallel to the main axis of the device is arranged and which corresponds to the pressure means Surface of the heating part at least partially overhangs in the radial direction. This suggests a constructive and visual interruption of the heating zone, the corresponding surfaces of the heating zone and the pressure medium in essentially have a congruent shape, so that the pressure medium directly on the Heating zone can be pressed. By interrupting the surface of the heating zone the at least one longitudinal rib is advantageously a deflection of the between reached the heating part and the pressure medium inlaid hair, so that this of the The heating section can be led away.

The surface of the surface corresponding to the pressure means is particularly advantageous Heating part in such a way in a plane substantially perpendicular to the main axis of the device formed such that a central region has an essentially convex course, and adhere to this at least one outer region with a substantially concave The course follows, the outer region being formed by the longitudinal rib. Thereby becomes a particularly effective deflection or guidance of the strand of hair from the Heating zone proposed away.

In a development of the invention, the clip is pivotable on the molding means, especially the heat sink. This creates another way of moving indicated the bracket, which advantageously a compensatory movement between bracket and heating section.

The pivot axis of the bracket is essentially parallel to the longitudinal axis of Heatsink and / or heating part and thus also essentially parallel to the main axis of the device. The bracket can thus advantageously on both of them front ends can be pivotally mounted in the heat sink via pivot bolts. This results in an advantageously uniform pressure force of the hair over the entire contact area of the heating element is reached.

The bracket is also essentially viewed in a plane transverse to its longitudinal axis mirror-symmetrical and the pivot axis is preferably in the Plane of symmetry. This advantageously results in a uniform pivoting movement the bracket allows on both sides of the plane of symmetry.

In a special embodiment of the invention it is proposed that the device, in particular the handle part essentially in a plane perpendicular to its main axis has an elliptical, oval or similar outer contour. Through this training the grip shell is advantageously achieved that the grip is better in the hand of the user and he finds it uncomfortable, the hair styling device around his To rotate the longitudinal axis. This design of the handle part should continue to be the new one Support handling of this device, which is different from the use so far known hair styling equipment noticeably differs in that the device is not around its longitudinal axis rotated, but pulled straight away from the user's hairline becomes.

In a further training it is proposed that the heating part and the molding agent a substantially constant cross-sectional area along the major axis of the device and this cross-sectional area is smaller than the cross-sectional area of the front End area of the handle part. This advantageously makes a clear separation between the hair treatment part with heating part and molding agent on the one hand and the Grip part on the other hand. Furthermore, due to the large training area the handle part a good, firm and secure grip of the device for the user.

The cross-sectional area of the handle part increases from the front to the rear, free end of the Grips continuously, so that advantageously a more pleasant, ergonomic gripping of the device by the user is made possible.

In a special development of the invention, two shaped elements, each with at least one one, in particular two shaped edges, is provided, the opposite ones Surfaces of the shaped elements for receiving a clamping area and Form the guide of the hair to be shaped. At least in the clamping area a heating zone is provided in one of the two shaped elements. This is advantageous specified a hair styling device, which by its essentially symmetrical Training allows a particularly simple handling of the device. The too shaping strand of hair can be from any side in the clamping area between inserted into the two form elements and drawn around any form edge become. The handling of the device by the user is therefore automatic correct, d. H. the strand of hair to be shaped is first warmed, the warmed in this way Strands of hair are formed on the shape edge and then cooled in the cooling zone.

In a further development, at least a first of the two shaped elements is used as a pressure means trained and relatively movable, in particular pivotable to the second Molded element mounted on the handle. Thus, advantageously only one movable form element is required, which the hair to be shaped to the corresponding Form element presses.

At least a first of the two shaped elements is advantageously a heating part formed, which has a heating zone and is therefore directly heated. So that will an inexpensive version of the hair styling device proposed, since only one Heating element is needed. A faster introduction of heat into the hair to be shaped is achieved in that, for example, a heating part is provided in both shaped elements which directly heats the first and the second shaped element.

In a special development, a second molded element consists of a thermally conductive Material and is directly heated after pressing on the first Molded element can be heated indirectly by means of contact heat through the first molded element. This advantageously means that there is no direct active heating in the second shaped element needed. However, both shaped elements heat up in a relatively short time, so that one strand inserted into the clamping area can be heated uniformly on both sides.

The shaped element has a cooling zone on the outside facing away from its heating zone on, so that both a heating zone and a molding edge in a single molding element and a cooling zone is provided. This is a particularly space-saving solution of the hair styling device proposed.

The cooling zone consists of a heat sink that can either be cooled actively or passively, which is the temperature difference required to stabilize the curls or waves between the heating zone and the cooling zone.

Between the heating part and the heat sink of a shaped element is a thermal one Decoupling provided, which is designed, for example, as a thermal insulator is. This enables a required temperature gradient in the smallest installation space.

The clamping area between the two shaped elements is advantageously more flat Formed gap, the direction of extension substantially parallel to the main axis of the device runs. Through this essentially symmetrical design of the A clamping range is proposed which, on the one hand, is independent of the Direction of the pulling movement of the device through the hair and on the other hand independently of the direction of rotation of the device around its own axis a constant Ensures frictional resistance between the hair and the form elements.

In a plane that is essentially perpendicular to the main axis of the device at both ends of the gap and / or at both shaped elements, one shaped edge each arranged. This advantageously results in a geometric design of the hair styling device suggested which regardless of the direction of movement of the device in the hair and leads from the direction of rotation of the device to the desired result, namely to create stable curls or waves in the hair to be shaped.

In a special embodiment of the invention, which is also an independent invention a method for reshaping the hair is proposed heating the hair in a heating zone, in cools down in a cooling zone and is formed by means of a molding element. It is according to the invention the strand of hair to be shaped is first heated in the heating zone, which warmed up in this way Strand of hair then on a mold edge separate from the heating part, which forms the molded element, reshaped and the strand of hair thus reshaped then cooled in a cooling zone becomes.

For curling it is necessary that a relative movement between the heated Hair and the shape edge of the invention takes place. With the previously known Procedures for shaping hair are mostly the ends of the hair between the Pressure and the heating medium are pinched and there is a movement from the tips towards the hairline, usually by winding the hair onto a winding body. in the The difference to this is a movement with the present method according to the invention proposed from the hairline to the hair tips, with the heated hair in this Movement around the form edge. It is essential to the invention that the warmed hair immediately after leaving the heating zone on the invention Form edge can be shaped by being deflected at the shape edge and in one tightened state - under tension - pulled over the mold edge. These shaped curly or wavy hair in particular is then subsequently in a the cooling edge immediately following the mold edge, this being an active, as well as a passive cooling zone that can be operated without the supply of external energy. there the hair immediately after leaving the mold edge without further heating cooled and preserved with advantage an improved durability of the curls or waves.

The hair is advantageously in the heating zone to at least the forming temperature heated, the forming temperature - also called glass temperature Tg - for example at approx. 30% relative humidity in the hair is approx. 120 ° C.

To create the necessary tension in the hair, these are between one Pressure medium and a heating element are inserted, so that a clamping force is applied to the parts to be formed Exercised hair and when pulling the warmed hair around the shape edge around, one long side of the hair is stretched. This is advantageous enables stable curling of the hair. The effect of curling is there the greater the stretch of the hair, the stronger. Another advantage is that here proposed method that the type and size of the curls or waves generated are not depend on the size, in particular the diameter, of a winding body, but only by the one-sided stretching of the hair created at the shape edge. The the long sides of the hair facing the shape edge, d. H. the side of the hair which is pulled directly over the form edge, undergoes compression and supports thus the stretch that takes place on the opposite long side of the hair.

In a particularly advantageous embodiment of the invention, the shape of the edge stretched away long sides of the hair by at least one percent. Thus effective curling regardless of the diameter of a winding body allows. The change in hair when stretching is below about 30% advantageously completely reversible, so that no damage to the edge of a mold stretched hair takes place.

The long sides of the hair facing the heating part are pulled around the shape edge, stretched on the mold edge and advantageously generate those by the user desired curls.

As an alternative to this, the long sides of the hair facing away from the heating part can also be on the shape edge can be deflected and stretched. This is also advantageous Hair curls possible.

In order for good curling to be achieved, the hair is tightened Condition drawn over the form edge. This is done by having the hair between the Pressure medium and the heating part are clamped and thus a holding force on the Hair is applied. This holding force counteracts the tensile force which the User generated by a movement of the hair styling device relative to the hair. This straightened condition of the hair advantageously results in the formation of curls favored.

The direction of movement of the hair behind the form edge, i.e. H. after leaving the Form edge, runs in the same or opposite direction to the direction of movement in front of the form edge, d. H. before reaching the mold edge. A direction of movement in the same direction and behind the mold edge allows a more uniform and advantageously lower Traction of the hair; a redirection of the direction of movement of the hair on one Form edge requires a higher tensile force and advantageously produces a stronger one Hair curls.

In a special embodiment of the invention it is proposed that the hair after Cooling stretching by moving the curly hair along a heat sink, be pulled in particular. Thus, good shaping is advantageously by means of a "Freeze" the curls.

A particularly good shape result is achieved in that the stretched long sides the hair turned away from the heat sink and pulled around the heat sink in this position become.

By the relative speed between the form edge and the one to be formed The shape of the curls can be influenced by hair. So there is a slow leading between Shape edge and hair advantageously have a tightly shaped curl, while by a fast guiding a generously shaped curl can be created.

The surface temperature of the heat sink is less than or equal to 85 ° C, so that with advantage a stable formation of the curls is achieved. Because the forming temperature human hair at approx. 30% relative humidity in the hair is approx. 120 ° C, is due to the formation of the surface temperature of the heat sink of 85 ° C or less given a sufficient temperature difference to the previously generated Stabilize curls sufficiently.

With the method according to the invention, straight hair can advantageously be effective can be curled almost from the hairline to the ends of the hair without a winding body to be used, which has hitherto been required for methods according to the prior art was. Furthermore, the deformation process of the hair that can be achieved with this method is reversible.

For a particularly advantageous application of the method, it is proposed that you place the hair in the clamping area between the two shaped elements, then the device rotates in any direction about its main axis so that the hair is at least partially in contact with the heat sink and finally that Hair styling device is moved away from a user's head so that the heated hair is on the shaped edge and the thus shaped hair cooled on the heat sink become. The shape result is when using a device with two shaped elements the curls or waves regardless of the direction of rotation of the device around its main axis. A user can push the strand of hair to be shaped from either side into the clamping area insert and also the hair styling device in any direction around his Turn the main axis so that the warmed hair is shaped at the mold edge and then is then cooled on the heat sink.

Further features, advantages and possible uses of the invention result from the following description of exemplary embodiments in the drawings are shown in more detail. All described and / or illustrated form Features for themselves or in any combination, the subject of the invention, independently from their summary in the claims and the relationship.

Fig. 1

ein Heizteil mit einem Andruckmittel mit einer Formkante und einer zu formenden Haarsträhne im Querschnitt,

Fig. 2

eine erfindungsgemäße Anordnung gemäß Fig. 1, jedoch mit einem Kühlkörper,

Fig. 3

Detail 4 gemäß Fig. 1 in vergrößerter Darstellung,

Fig. 4

ein Haarformgerät mit einem Griffteil und einem Heizteil in der Unteransicht,

Fig. 5

ein Haarformgerät gemäß Fig. 4 mit einem Formmittel in Seitenansicht,

Fig. 6

ein Haarformgerät gemäß Fig. 5 in der Draufsicht,

Fig. 7

ein Griffteil gemäß Schnitt 108 in Fig. 5 in vergrößerter Darstellung,

Fig. 8

ein Griffteil gemäß Schnitt 109 in Fig. 5 in vergrößerter Darstellung,

Fig. 9

ein Heizteil und Formmittel gemäß Schnitt 110 in Fig. 5 in vergrößerter Darstellung,

Fig. 10

ein Haarformgerät in perspektivischer Darstellung,

Fig. 11

ein Haarformgerät gemäß Fig. 10 in Unteransicht,

Fig. 12

ein Haarformgerät mit flügelartig ausgebildeter Begrenzungsrippe in perspektivischer Darstellung,

Fig. 13

ein Heizteil und ein Formmittel im Schnitt ähnlich der Darstellung in Fig. 9 jedoch in geöffneter Position,

Fig. 14

zwei Formelemente, in im wesentlichen symmetrischer Ausbildung und in Schnittdarstellung und

Fig. 15

ein Formmittel mit zwei Formelementen ähnlich der Abbildung in Fig. 14 in perspektivischer Darstellung.

It shows:

Fig. 1

a heating part with a pressure medium with a shaped edge and a strand of hair to be shaped in cross section,

Fig. 2

1, but with a heat sink,

Fig. 3

Detail 4 according to FIG. 1 in an enlarged view,

Fig. 4

a hair styling device with a handle part and a heating part in the bottom view,

Fig. 5

4 with a styling agent in side view,

Fig. 6

5 in top view,

Fig. 7

5 shows an enlarged view of a grip part according to section 108 in FIG. 5,

Fig. 8

5 shows an enlarged view of a grip part according to section 109 in FIG. 5,

Fig. 9

5 shows an enlarged view of a heating part and molding means according to section 110 in FIG. 5,

Fig. 10

a hair styling device in perspective,

Fig. 11

10 is a bottom view of a hair styling device according to FIG. 10,

Fig. 12

a hair styling device with wing-shaped boundary rib in a perspective view,

Fig. 13

a heating part and a molding means in section similar to the illustration in Fig. 9 but in the open position,

Fig. 14

two form elements, in a substantially symmetrical design and in a sectional view and

Fig. 15

a mold with two shaped elements similar to the illustration in Fig. 14 in a perspective view.

A hair styling device according to the invention (Fig. 1) consists of a circular cylindrical, for example Heating part 6 and a pressure means, in particular a hair clip 8, which is pressed onto the heating part 6 by a spring mechanism, not shown. A strand of hair 2 to be reshaped comes from the hairline 14 between the heating part 6 and the bracket 8 inserted and is on the pressure surface 12 between the two Components heated by the heating part 6 to the forming temperature of the hair. The bracket 8 has at one edge an elongated shape edge 10 around which the strand 2 is drawn becomes. By movement of the hair styling device by the user in the direction of The heated strand 2 is pulled between the heating part 6 and the clamp 8 by tensile force 16 and after leaving the pressure surface 12, the strand 2 on the Form edge 10 of the clip 8 deflected; this creates the curl of the streak 2 from hairline 14 to the tip of the hair.

A particularly stable shaping of the curls can be achieved by the curls after the Forming cooled on a heat sink and the curls "frozen". To a hair styling device with a structure as shown in FIG. 1 is used, which consists of a heating part 6 and a bracket 8 with a shaped edge 10 consists. A heat sink 30 can, as shown in FIG. 3, above arranged the bracket 8 and by a connection, not shown, to the bracket 8 be attached. Bracket 8 and heat sink 30 form a mold 31 Heat sink 30 has a semicircular cross section and can be used for reinforcement the cooling effect in its upper arcuate area equipped with cooling fins 32 his. The heat sink 30 also extends parallel in the elongated direction to heating part 6 and to clip 8. When the hair styling device is moved in the direction of movement 34, the strand 2 is first heated on the pressure surface 12, then deflected at the mold edge 10 and finally at the heat sink 30 cooled.

The lock of hair 2 (FIG. 4) is opened by the clip 8 in the area of the pressure surface 12 the heating part 6 is pressed and when the heating part 6 moves in the direction of movement 16 pulled around the mold edge 10. The strand of hair wraps around 2 den subsequent edge region of the bracket 8, which forms the molded edge 10. For the The shape result of the curls of the strand of hair 2 is decisive with which radius 36 the mold edge 10 is provided. This should have a minimum radius of approx. 0.1 mm, to destroy, especially break the hair when reshaping avoid. The strand 2 can loop around the shape edge 10 at approximately a right angle, as shown in Fig. 4; the wrap angle of the strand 2 to the form edge However, 10 can also be made larger or smaller 90 °, depending on the what shape result is intended, d. H. whether small or large curl diameters should be generated.

If the strand of hair 2 is pulled around the shape edge 10, the Heating part 6 facing longitudinal side 38 of the hair stretched and the heating part 6 facing away Long side 40 of the hair is compressed. Because of this different length change the hair is curled.

A hair styling device 50 according to the invention (FIGS. 5, 6 and 7) essentially consists of a grip part 54 with a heating part 52 and a molding means 72. The grip part 54 again consists of a middle handle 64, a front cover 62 and one End cap 66, which are arranged symmetrically about the main axis 70. On the Operating elements 68 are provided on the top and bottom of the handle part. The heating part 52 is provided with ribs 58 between the front cover 62 and the tip 56, wherein neighboring ribs form a circumferential channel 59.

The ribs 76 of the molding means 72 are substantially perpendicular to the main axis 70 arranged, while the ribs 58 of the heating part 52 directed towards the tip 56 have arrow-shaped training. Near the parting line 74 between the heating part 52 and the molding means 72 are arranged on the heating part 52 longitudinal webs 60.

The foremost and rearmost ribs of the shaping means 72 are as limiting ribs 78 formed and protrude the molding means 72 at least in regions in the direction of Heating part 52.

The sections 108, 109 and 110 of FIG. 6 are described in the following figures. A section 108 near the end cap 66 (FIG. 8) shows the elliptical design of the grip part 54. The grip shell 64 has a smaller cross-sectional area at this point than near the front cover 62. The installation parts located in the grip shell 64 are not shown for the sake of simplicity. On the top and bottom of the handle 54 are the controls 68 for switching the device on and off, as well to operate the mold.

In a section along the line 109 of FIG. 6, the grip shell 64 (FIG. 9) shows one compared to the cut 108 larger cross-sectional area, which from the rear end of the handle part to the front cover of the handle part increases continuously.

In a section along line 110 in FIG. 6, the lower one can be seen (FIG. 10) Heating part 52 and the upper mold 72. The heating part 52 is essentially in with the Surround circumferential ribs 58 which by means of the pins 80 in radial direction are connected to the inner region of the heating part 52. The mold 72 consists of the heat sink 82 and the limiting rib 78, which the Surrounds heat sink 82 at least in regions. Between heating part 52 and heat sink A pressure means in the form of the clamp 84 is arranged. This bracket 84 is on their front and rear end by means of a pivot pin in the Heatsink 82 pivotally mounted. The pivot axis 86 lies in the plane of symmetry 87 of heating part 52 and molding means 72. At the two lateral ends of the bow-shaped bracket 84, the shape edges 88 can be seen.

The hair styling device 50 (FIG. 11) essentially consists of a rear handle part 54 and a front part 90, which can be divided into the heating part 52 and the molding means 72 is. The heating part 52 is firmly connected to the handle part 54 at its rear end, while the molding means 72 is pivotable at its rear end with the handle part 54 connected is. When operating control 68 on top of device 50 the parting line 74 between the heating part 52 and the molding means 72 is opened so far that in this wedge-shaped opening can be inserted comfortably the hair to be reshaped. To shape the hair, the shaping means 72 is again activated by means of the control element 68 pivoted on the heating part 52 and so the hair in between to the top of the heating part 52 is pressed. The limiting ribs 78 of the molding means 72 protrude tooth-like beyond the shape edge 88 and thus hold the hair to be reshaped in the Area of the molding means 72 which is provided with the ribs 76 on its outside is. When using the hair styling device 50, the hair to be reshaped is thus pulled between the heating part 52 and the molding means 72 and then on the Molded edge 88 deflected and returned over the outside of the molding means 72.

The heating part 52 (FIG. 12) is on its outside - as an alternative to that in FIGS. 5 to 10 shown formation of the ribs 58 - provided with longitudinal ribs 92. These are between the tip 56 and the front cover 62 of the device and are intended to wrap around of the front part 90 of the hair styling device with a strand of hair by the user prevent.

The heating part 53 (FIG. 13) is on its lower outside - similar to the illustration in FIG Fig. 12 - provided with longitudinal ribs 92. The uppermost one of the longitudinal ribs 92 is wing-like Limiting rib 98 is formed, wherein this limiting rib 98 is different is high. At its front end 100 near the device tip 56 is the height of the Rib 98 is significantly lower than at its rear end 102 near the front cover 62 of the device. The molded part 72 and the handle part 54 essentially correspond to Illustrations in FIGS. 11 and 12. Due to the different heights of the boundary rib 98 this is integrated between the tip 56 and the front cover 62 in such a way so that no corners and edges of the rib 98 the outer contour of the device overtop.

The heating part 53 and the molded part 72 (FIG. 14) are shown in an open state, so that a strand of hair to be shaped in the space between these two components can be inserted. The molded part 72 consists essentially of the same Components such as the molded part shown in Fig. 10, namely from a heat sink 82 and a clip 84 with the shape edge 88. The heating part 53, however, shows on his Underside of a series of longitudinal ribs 92 which are substantially radial from the Extend heating section 53 outwards. The two outer longitudinal ribs are as boundary ribs 98 formed, which the remaining ribs 92 in the radial direction tower outside. On both sides of the top of the heating part 53, which is the heating zone forms, longitudinal ribs 104 are shown, which are substantially parallel to Main axis of the device and extend the surface of the heating zone at least in some areas protrude in the radial direction. The top of the heating part 53 is essentially divided into three different areas, namely a first middle area 106, which has an essentially convex course. On both sides of the In the middle region, two outer, essentially concave regions 105 close and 107 on. Now there is a strand of hair to be shaped in the space between Heating part 53 and molded part 72 inserted and the molded part 72 with the underside of the clip 84 pressed onto the top of the heating part 53, so the strand of hair to be shaped passed through the two longitudinal ribs 104 around the shaped edges 88 and thus points away from the heating part 53. So that the strand of hair to be shaped inevitably "up" to the heat sink 82 around the shape edge 88 be led.

An alternative embodiment of the molding means 140 (Fig. 15) consists of two essentially symmetrically shaped elements 112 and 114, which by a substantially flat gap 132 are separated from each other. The two form elements 112 and 114 can be symmetrical about the main axis 136 of the hair styling device be arranged. Each shaped element 112, 114 consists of one Heating part 116, 118 and a heat sink adjoining it radially outwards 120, 122. At least one of the two heating parts 116, 118 must go directly through a heating element be heated. The opposite second shaped element can indirectly through Contact heat through the first heating element or directly through a separate heating element be heated.

At the two diametrically opposite ends of the gap 132 are on each Heating part 116, 118 each have a shaped edge 124, 128 and 126, 130. So that can a strand of hair to be shaped is inserted into the gap 132 from both sides and heated become. After heating, the molding agent 140 is about 90 to 180 ° around its Main axis 136 rotated so that the strand of hair on the outside of one of the two Heat sink 120 or 122 comes into contact. This will make it easy and safe Allows handling of the device regardless of its direction of rotation or movement. For thermal decoupling of the heating part 118 and the heat sink 122 Forming elements 114 will provide thermal insulation 134 between the two components proposed.

A molding means shown in FIG. 15 with an essentially symmetrical structure is shown in perspective in Fig. 16. On a partially cut Handle part 138 shown in the drawing is followed by a molding means 140, which consists of there are two substantially similar shaped elements 112, 114. The top feature 112 is designed as a pressure means and with an operating element 144 connected on the top of the handle part 138 so that the shaped element 112 is pivotable is connected to the grip part 138 with respect to the shaped element 114. Both form elements 112, 114 each consist of a heating part with a shaped edge 128, 130, which extend essentially parallel to the main axis of the hair styling device. The two heating parts of the shaped elements 112, 114 are diametrically opposed the two heat sinks 120, 122. These are on their opposite Outside with a row of transverse ribs 142 for guiding the hair to be shaped Mistake.

Claims (54)

1. A hair styling appliance having a handle portion, a heating portion (6, 52) with a heating zone for heating the hair (2), a heat absorbing body (30), and a styling element for styling the hair,
   characterized in that the styling element is configured as a hair forming ridge (10, 88) and the hair forming ridge (10, 88) is provided downstream of the heating zone and the heat absorbing body (30) is provided downstream of the hair forming ridge (10, 88), so that a strand of hair (2) to be styled is heatable by means of the heating zone, the heated strand of hair (2) is formable on the hair forming ridge (10, 88), and the formed strand of hair is coolable on the heat absorbing body (30), that the hair forming ridge (10, 88) is provided on a separate styling device (31) spaced from the heating portion (6, 52), and that a strand of hair (2) is adapted to be pulled through between the heating portion (6, 52) and the styling device (31).
2. The hair styling appliance as claimed in claim 10,
   characterized in that the styling device (31) is connected with the pressure-generating element, in particular the retaining clamp (8).
3. The hair styling appliance as claimed in claim 10 or 11,
   characterized in that the styling device (30) is movably attached to the handle portion or the heating portion (6), having in particular one end thereof connected to the handle portion or the heating portion (6) by a rotary joint.
4. The hair styling appliance as claimed in claim 1,
   characterized in that the hair forming ridge (10, 24, 88) is of an arcuate cross-section, in particular of a circular-arc-shaped or polygonal or similar cross-section.
5. The hair styling appliance as claimed in claim 1 or 2,
   characterized in that the hair forming ridge (10, 24, 88) has a radius (36) greater than 0.1 mm, in particular between 0.5 mm and 5 mm.
6. The hair styling appliance as claimed in claim 1, 2 or 3,
   characterized in that the hair forming ridge (10, 24, 88) is arranged substantially parallel to the main axis of the heating portion (6, 20, 52) and/or a pressure-generating element (8).
7. The hair styling appliance as claimed in any one of the preceding claims,
   characterized in that the tangents of the hair forming ridge (10, 24, 88) intersect at an angle smaller than 180°.
8. The hair styling appliance as claimed in any one of the preceding claims,
   characterized in that the styling device (31) is formed by a pressure-generating element (8, 84) for producing a pressure acting on the hair to be formed.
9. The hair styling appliance as claimed in any one of the preceding claims,
   characterized in that the hair forming ridge (10, 24, 88) is provided on the pressure-generating element (8, 84), and that said pressure-generating element (8, 84) is configured as a styling clamp, in particular as a styling clamp that is movable relative to the handle portion.
10. The hair styling appliance as claimed in any one of the preceding claims,
    characterized in that the heat absorbing body (30) is arranged in the area of the hair forming ridge (10).
11. The hair styling appliance as claimed in claim 10,
    characterized in that the heating portion (6), the hair forming ridge (10) and the heat absorbing body (30) are arranged essentially parallel to each other.
12. The hair styling appliance as claimed in any one of the claims 10 and 11,
    characterized in that the styling device and the heat absorbing body (30) are fixedly connected with each other and arranged so as to be movable relative to the heating portion (6).
13. The hair styling appliance as claimed in any one of the claims 10 to 12,
    characterized in that the heat absorbing body (30) is made of a material conducting heat well as, for example, aluminum or a similar material, or is configured as a hollow body of aluminum filled with paraffin.
14. The hair styling appliance as claimed in any one of the claims 10 to 13,
    characterized in that the heat absorbing body (30) is provided with a heat-conducting coating and/or cooling ribs (32).
15. The hair styling appliance as claimed in any one of the claims 10 to 14,
    characterized in that the heat absorbing body (30) is actively coolable, for example, by means of cooling air, a Peltier element or a similar device.
16. The hair styling appliance as claimed in any one of the preceding claims,
    characterized in that the heating portion (52) and/or the styling device (72) are provided with guiding and/or spacing elements, in particular ribs (58, 92), on the outside.
17. The hair styling appliance as claimed in claim 16,
    characterized in that the ribs (58) are arranged essentially transversely to the main axis (70) of the appliance (50) and/or that between each two adjacent ribs (58) a circumferential channel (59) is formed.
18. The hair styling appliance as claimed in claim 16 or 17,
    characterized in that at least one boundary rib is provided.
19. The hair styling appliance as claimed in claim 18,
    characterized in that the two outermost ribs are configured as boundary ribs (78) and protrude at least in areas beyond the remaining ribs (76) in a plane transverse to the main axis (70) of the appliance (50).
20. The hair styling appliance as claimed in any one of the preceding claims,
    characterized in that the ribs (58) are provided on at least one component, in particular the heating portion (52), in an arcuate, undulating or arrow-shaped configuration.
21. The hair styling appliance as claimed in any one of the preceding claims,
    characterized in that the ribs, in particular the ribs (92) on the heating portion (52), are arranged substantially parallel to the main axis (70) of the appliance (50).
22. The hair styling appliance as claimed in claim 21,
    characterized in that the ribs (92) extend substantially radially away from the main axis (70) of the appliance (50).
23. The hair styling appliance as claimed in claim 21 or 22,
    characterized in that at least one of the two outermost ribs is configured as a boundary rib and protrudes at least in areas beyond the inner ribs lying therebetween in an essentially radial direction.
24. The hair styling appliance as claimed in claim 23,
    characterized in that the at least one boundary rib is configured in wing shape, with the boundary rib's end on the side close to the handle portion (54) being higher than the boundary rib's end on the side remote from the handle portion (54).
25. The hair styling appliance as claimed in any one of the preceding claims,
    characterized in that the heating portion (52) has directly adjacent to the heating zone at least one longitudinal rib which is arranged substantially parallel to the main axis of the appliance and protrudes at least in areas radially beyond the surface of the heating portion (52) corresponding with the pressure-generating element (84).
26. The hair styling appliance as claimed in claim 25,
    characterized in that the surface of the heating portion (6, 20, 52) corresponding with the pressure-generating element (8, 84) has one plane configured essentially perpendicular to the main axis of the appliance, forming a central section that follows an essentially convex course and is adjoined by at least one outer section following an essentially concave course.
27. The hair styling appliance as claimed in any one of the preceding claims,
    characterized in that the clamp (84) is pivotally mounted on the styling device (72), in particular the heat absorbing body (82).
28. The hair styling appliance as claimed in claim 27,
    characterized in that the pivot axis (86) of the clamp (84) is arranged substantially parallel to the longitudinal axis of the heat absorbing body (82) and/or the heating portion (52).
29. The hair styling appliance as claimed in any one of the preceding claims,
    characterized in that the clamp (84) is configured essentially in mirror symmetry in cross-section and the pivot axis (86) lies preferably in the plane of symmetry (87) of the clamp (84).
30. The hair styling appliance as claimed in any one of the preceding claims,
    characterized in that the appliance (50), in particular the handle portion (54), has a substantially elliptical, oval or similar outer contour in a plane perpendicular to its main axis (70).
31. The hair styling appliance as claimed in any one of the preceding claims,
    characterized in that the heating portion (52) and the styling device (72) are provided with a substantially constant area of cross-section along the main axis (70), and that this area of cross-section is smaller than the area of cross-section of the forward end (94) of the handle portion (54).
32. The hair styling appliance as claimed in any one of the preceding claims,
    characterized in that the area of cross-section of the handle portion (54) diminishes continuously from the forward to the rearward free end (96).
33. The hair styling appliance as claimed in any one of the preceding claims,
    characterized in that two styling elements (112, 114) having each at least one, in particular two hair forming ridges (124, 126, 128, 130) are provided, with the opposite surfaces of the styling elements (112, 114) forming a clamping area to receive and guide the hair to be styled.
34. The hair styling appliance as claimed in claim 33,
    characterized in that at least a first styling element (112) is configured as a pressure-generating element and is mounted movably, in particular pivotally, relative to the second styling element (114).
35. The hair styling appliance as claimed in claim 33 or 34,
    characterized in that at least one styling element (114) includes a heating portion (116, 118) having a heating zone which is directly heatable.
36. The hair styling appliance as claimed in claim 35,
    characterized in that a second styling element (112) is made of a thermally conductive material and is indirectly heatable by contact heat from the first styling element.
37. The hair styling appliance as claimed in any one of the claims 33 to 36,
    characterized in that the styling elements (112, 114) have a heat absorbing body on the side remote from the heating zone.
38. The hair styling appliance as claimed in claim 37,
    characterized in that the heat absorbing body is an actively or passively coolable heat absorbing body (120, 122).
39. The hair styling appliance as claimed in claim 37 or 38,
    characterized in that a thermal decoupling arrangement, for example an insulator (134), is provided between the heating portion (116, 118) and the heat absorbing body (120, 122).
40. The hair styling appliance as claimed in any one of the claims 33 to 39,
    characterized in that the clamping area between the two styling elements (112, 114) is configured as a plane slot (132) whose main direction of extent is essentially parallel to the main axis (136) of the appliance.
41. The hair styling appliance as claimed in claim 44,
    characterized in that in a plane extending substantially perpendicular to the main axis (136) of the appliance, a hair forming ridge (124, 126, 128, 130) each is arranged on either end of the slot (132) and/or on both styling elements (112, 114).
42. A method of styling hair, comprising the steps of heating the hair in a heating zone, cooling it in a cooling zone and forming it by means of a styling element,
    characterized by the steps of heating a strand of hair (2) to be styled in the heating zone, then forming the hair strand (2) thus heated on a hair forming ridge (10, 88, 124, 126, 128, 130) separate from the heating portion (6, 52) and providing the styling element, and subsequently cooling the hair strand (2) thus formed in the cooling zone.
43. The method as claimed in claim 42,
    characterized by the step of heating the hair in the heating zone to at least forming temperature, with the forming temperature amounting to 120°C, approximately, with a relative humidity in the hair of about 30%.
44. The method as claimed in claim 42 or 43,
    characterized by the steps of inserting the hair between a pressure-generating element (8, 84) and a heating portion (6, 52), exerting a clamping force on the hair to be formed, and pulling the heated hair around the hair forming ridge (10, 24), thus causing a longitudinal side (38) of the hair to be stretched in the process.
45. The method as claimed in any one of the claims 42 to 44,
    characterized in that the longitudinal sides (38) of the hair facing away from the hair forming ridge (10, 24) are stretched by at least one percent.
46. The method as claimed in any one of the claims 42 to 45,
    characterized in that the longitudinal sides of the hair close to the heating portion (6) are stretched on the hair forming ridge (10).
47. The method as claimed in any one of the claims 42 to 45,
    characterized in that the longitudinal sides of the hair facing away from the heating portion (20) are stretched on the hair forming ridge (24).
48. The method as claimed in any one of the claims 42 to 47,
    characterized by the step of pulling the hair (2) over the hair forming ridge (10, 24, 88) in a tensioned condition.
49. The method as claimed in any one of the claims 42 to 48,
    characterized by the step of cooling the hair on a heat absorbing body (30, 82) following stretching by pulling the hair (2) along the heat absorbing body (30, 82).
50. The method as claimed in claim 49,
    characterized in that the stretched longitudinal sides (38) of the hair (2) face away from the heat absorbing body (30).
51. The method as claimed in any one of the claims 42 to 50,
    characterized in that the relative speed between the hair forming ridge (10, 24) and the hair (2) is variable.
52. The method as claimed in any one of the claims 42 to 51,
    characterized in that the surface temperature of the heat absorbing body (30) is lower than or equal to 85°C.
53. The method as claimed in any one of the claims 42 to 52,
    characterized in that the curling operation is performed on straight hair.
54. The method as claimed in any one of the claims 42 to 53,
    characterized by the steps of introducing the hair in the clamping area between the two styling elements (112, 114), turning the hair styling appliance about its main axis (136) in any direction until at least sections of the hair engage a heat absorbing body (120, 122), and then moving the hair styling appliance away from a user's head, so that the heated hair is formed on a hair forming ridge (124, 126, 128, 130) and the hair thus formed is cooled on the heat absorbing body (120, 122).

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