EP0175232A2 - Hair treatment device - Google Patents

Hair treatment device Download PDF

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Publication number
EP0175232A2
EP0175232A2 EP85111267A EP85111267A EP0175232A2 EP 0175232 A2 EP0175232 A2 EP 0175232A2 EP 85111267 A EP85111267 A EP 85111267A EP 85111267 A EP85111267 A EP 85111267A EP 0175232 A2 EP0175232 A2 EP 0175232A2
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EP
European Patent Office
Prior art keywords
heating
hair
treatment device
mandrel
hair treatment
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP85111267A
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German (de)
French (fr)
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EP0175232A3 (en
EP0175232B1 (en
Inventor
Karlheinz Barowsi
Conrad Berghammer
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Braun GmbH
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Braun GmbH
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Priority to AT85111267T priority Critical patent/ATE39824T1/en
Publication of EP0175232A2 publication Critical patent/EP0175232A2/en
Publication of EP0175232A3 publication Critical patent/EP0175232A3/en
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Publication of EP0175232B1 publication Critical patent/EP0175232B1/en
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    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D4/00—Separate devices designed for heating hair curlers or hair-wavers
    • A45D4/16—Independent devices characterised by heating the hair-curling or hair-waving means before use
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D2/00—Hair-curling or hair-waving appliances ; Appliances for hair dressing treatment not otherwise provided for
    • A45D2/36—Hair curlers or hair winders with incorporated heating or drying means, e.g. electric, using chemical reaction

Definitions

  • the invention relates to a hair treatment device according to the preamble of claim 1.
  • a hair treatment device which consists of hair curlers and a device having a plurality of heating pins for heating the hair curlers.
  • each hair curler according to this prior publication being a bimetal Contains locking element that fixes it on the heating mandrel of the heating device until it has reached a predetermined target temperature, which corresponds to the optimal hair styling temperature. When this set temperature is exceeded, the bimetal lock releases and the curler is lifted from the heating mandrel by a pre-tensioned spring.
  • a hair treatment device has already become known from US Pat. No. 4,109,667, in which the temperature dependence of the attraction force of a magnet on a ferromagnetic material arranged in the hair curler with a corresponding Curie point has been used to limit the heating of the hair curlers, but this had to be known Every hair curler used must be equipped with an electric heater, which then had to be connected to a power source in a heating station via touch contacts, and therefore overall, this device required so much cost to manufacture that it was not competitive with other known solutions. In addition, their functional reliability could be severely impaired in the long run by mechanical wear and aging of the electrical connection contacts.
  • the heating device should be as small and handy as possible and still effective in terms of its heating effect.
  • it should be possible to heat curlers of different calibers, such as those used to produce large and small curls, on the same heating mandrel without any problems.
  • a hair treatment device is proposed according to the present invention, which has the features specified in the characterizing part of patent claim 1 within the scope of the device concept outlined at the outset and which can advantageously be designed or operated in accordance with the subclaims.
  • the holding means which fix the hair curlers on the heating mandrels until their desired temperature is reached consist of a magnet and a body arranged in or on each hair curler and which can be brought into the holding distance of this magnet by plugging a hair curler onto a heating mandrel ferromagnetic material whose Curie temperature corresponds to the set temperature of the hair roller speaks.
  • the present invention provides a very inexpensive hair treatment device , in which hair curlers can always be heated up in an elegant way, precisely and reliably, to the same specified target temperature.
  • the magnet has proven to be particularly advantageous to arrange the magnet on the free end of the heating mandrel and the magnetizable body on the corresponding end of the hair curler, so that these two interacting parts are directly adjacent when the hair curler is plugged onto the heating mandrel.
  • This central placement of the holding means offers significant manufacturing and assembly advantages and also has a particularly reliable effect that the magnetic attraction force, which decreases due to the heating of the ferromagnetic body, reproducibly falls below the counteracting force of the tensioned spring and consequently triggers the lifting of the hair roller from the heating mandrel when the heat-storing core of the hair curler is evenly heated to the specified target temperature.
  • the effect of the magnet can be improved in a manner known per se by providing it with a so-called iron yoke.
  • the spring effecting the spring lifting the curler from the heating mandrel by pushing apart the ferromagnetic body and the magnet arranged in the hair curler is preferably supported on the one hand at the lower end of the heating mandrel or on part of the housing carrying it and on the other hand at the lower end of the respective plugged-on heating mandrel Curlers.
  • it can also be arranged directly between the magnet and the ferromagnetic body, in such a way that the magnet fastened at its lower end - opposite the ferromagnetic body - is fastened via it to the hair curler and when the Hair curler on the heating mandrel comes to the plant.
  • the present invention can be expediently embodied in that the hair treatment device includes differently heatable hair curlers, for example of the same caliber, which are separate Distinguish by the Curie temperature of the ferromagnetic bodies contained in them and can be distinguished externally, for example by their coloring.
  • the heating mandrels are preferably heated by means of electrically operated PTC resistors which, due to their known temperature-dependent resistance characteristics, limit the heating of the heating mandrels in a self-regulating manner, so that no additional temperature control is required.
  • a heating element is arranged underneath each heating mandrel, in such a way that its upper surface rests firmly against the entire surface in a heat-conducting manner directly at the foot of the heating mandrel and is resiliently supported on its underside to intercept its thermal expansion.
  • conical heating mandrels contain corresponding elongated recesses which are arranged coaxially to the longitudinal axis of the mandrels and in which correspondingly shaped heating elements are positively fixed under a press fit.
  • the heating mandrels can also be heated with the aid of heating elements which contain devices for thermostatically controlled catalytic combustion of a combustible gas.
  • the hair treatment device according to the invention can be used completely independently, so that it can be used without any problems, in particular when traveling and in places without a mains voltage connection, and moreover it completely avoids the residual risk, which in principle cannot be entirely ruled out in the case of mains voltage-operated electrical appliances, in the event of improper handling in wet rooms.
  • An embodiment of the present invention which is distinguished by particular advantages in use, is characterized in that the heating elements and their regulation are set up in this way - ie built and adjusted - and dimensioned so that they continuously heat the mandrels to a temperature that is at least 100 ° Celsius above the target temperature of the hair curlers. This ensures that the heating pins are not only preheated when the hair curlers are plugged on, but are very significantly overheated in relation to their target temperature, so that the hair curlers heat up in the shortest possible time, ie within a few seconds.
  • This embodiment can be modified to the advantage that it only contains a single heating mandrel; because it has been shown that due to the extremely short heating-up time of the hair curlers achieved by the excess temperature, even with rapid operation, it is readily able to bring one hair roller after another to its desired temperature sufficiently quickly. This also results in significant savings in the manufacturing costs of the heating unit, as well as small device dimensions and low weight.
  • the heating mandrel In order to avoid energy losses due to heat radiation and convection, it is additionally proposed to laterally enclose the heating mandrel at a distance from a heat-insulating and / or heat-reflecting wall that enables the curlers to be attached. At the same time, this measure prevents burns due to accidental contact with the overheated heating mandrel.
  • the end In order to prevent burns on the free end of the heating mandrel, the end preferably has a touch guard in the form of a heat-insulating, heat-resistant cap or plate.
  • the curler 1 can be seen in Figure 1, which contains the body 3 made of ferromagnetic material in the region of its upper end and which has been pushed onto the heating mandrel 2 by gently depressing it against the force of the elastic spring 5, so that it is pushed through the force exerted by the magnet 4 arranged in the free end face of the heating mandrel 2 on the ferromagnetic body 3 is held in this position.
  • the heating mandrel 2 with the heating element 6 arranged on its foot is fixedly arranged in the interior of a housing 7 by means of construction elements (not shown in the drawing).
  • a housing 7 by means of construction elements (not shown in the drawing).
  • Parts 7.1 of the housing wall which enclose the heating mandrel at a distance that allows the curlers to be plugged on, are designed to be heat-insulating and / or heat-reflecting and thereby limit heat losses due to radiation and convection.
  • the housing surrounding the heating mandrel 2, together with the protective cap 2.1 attached to the end of the heating mandrel prevents a user of the device according to the invention from being burned by accidental contact with the heated mandrel.
  • Figure 3 shows the embodiment of the present invention according to claim 4, in which the magnet 4 and the compressible lifting spring 5 are components of the curler 1.
  • the heating mandrel or the heating mandrels are continuously heated to a temperature which is significantly higher than the temperature during the entire period of use of the device
  • the target temperature of the curlers is.
  • substantially above the target temperature of the hair curlers means temperatures which are at least above the hair damage temperature and for this reason are usually not taken into account for heating hair curlers.
  • the permanent temperature of the heating mandrels used in the proposed procedure is preferably at least 100 ° Celsius above the target temperature of the hair curlers, for example 300 ° Celsius.

Abstract

A hair styling device includes a hair roller that defines a conical inner chamber open at its larger end and has a jacket containing a heat storing material, a cooperating heating spindle for heating the hair roller, the heating spindle having a conical outer surface matching the inner surface of the inner chamber of the hair roller, and biasing means for causing the hair roller to rise off the heating spindle. Hair roller holding means comprises a body of ferromagnetic material carried by the hair roller adjacent the smaller end of the conical chamber and a magnet, the body of ferromagentic material being movable into the holding range of the magnet when the hair roller is placed on the heating spindle to hold the conical surfaces of the chamber of the hair roller and the heating spindle in mating engagement. The Curie temperature of the ferromagnetic material corresponds to the set temperature of the hair roller, so that when the hair roller is heated to its set temperature, the holding force of the magnet is reduced and the biasing means lifts the hair roller off the heating spindle.

Description

Die Erfindung betrifft eine Haarbehandlungseinrichtung gemäß dem Oberbegriff des Patentanspruchs 1. Eine derartige Einrichtung, die aus Lockenwicklern und einer mehrere Heizdorne aufweisenden Vorrichtung zur Erhitzung der Lockenwickler besteht, ist aus der US-PS 3 415 254 bekannt, wobei jeder Lockenwickler gemäß dieser Vorveröffentlichung ein Bimetall-Verriegelungselement enthält, das ihn auf dem Heizdorn der Erhitzungsvorrichtung so lange fixiert, bis er eine vorgegebene Soll-Temperatur, die der optimalen Haarformungstemperatur entspricht, erreicht hat. Bei Überschreiten dieser Soll-Temperatur klinkt die Bimetall-Verriegelung aus, und der Lockenwickler wird durch eine vorgespannte Feder vom Heizdorn abgehoben.The invention relates to a hair treatment device according to the preamble of claim 1. Such a device, which consists of hair curlers and a device having a plurality of heating pins for heating the hair curlers, is known from US Pat. No. 3,415,254, each hair curler according to this prior publication being a bimetal Contains locking element that fixes it on the heating mandrel of the heating device until it has reached a predetermined target temperature, which corresponds to the optimal hair styling temperature. When this set temperature is exceeded, the bimetal lock releases and the curler is lifted from the heating mandrel by a pre-tensioned spring.

Obwohl diese bekannte Vorrichtung sich bereits vorteilhaft vom übrigen Stand der Technik unterschied, bei dem eine ausreichende Erhitzung der Lockenwickler - beispielsweise mittels Wasserdampf - gar nicht möglich war oder zumindest eine als optimal erkannte Haarformungstemperatur im allgemeinen nicht reproduzierbar vorgegeben werden konnte, war auch sie nicht voll befriedigend, da ihre mechanische Bimetall-Verriegelung bereits bei der Herstellung nur unter großem technischem Aufwand exakt justierbar war und die Ansprechgenauigkeit dieser Verriegelung im Laufe der Zeit infolge von Verschleißerscheinungen zwangsläufig nachließ.Although this known device already advantageously differed from the rest of the prior art, in which sufficient heating of the hair curlers was not possible at all - for example by means of steam - or at least a hair-shaping temperature recognized as optimal could generally not be reproducibly specified, it was also not full satisfactory, since its mechanical bimetallic lock could only be precisely adjusted during manufacture with great technical effort and the response accuracy of this lock inevitably deteriorated over time due to wear and tear.

Es ist zwar aus der US-PS 4 109 667 bereits eine Haarbehandlungseinrichtung bekanntgeworden, in der zur Begrenzung der Aufheizung der Lockenwickler die Temperaturabhängigkeit der Anziehungskraft eines Magneten auf ein ferromagnetisches im Lockenwickler angeordnetes Material mit entsprechendem Curie-Punkt ausgenutzt wurde, jedoch mußte bei dieser bekannten Einrichtung jeder einzelne verwendete Lockenwickler mit einer-elektrischen Heizung ausgestattet sein, die dann jedesmal in einer Aufheizstation über Berührungskontakte an eine Stromquelle anzuschließen war, und daher erforderte diese Einrichtung zu ihrer Herstellung insgesamt einen so großen Kostenaufwand, daß sie zu anderen bekannten Lösungen nicht konkurrenzfähig war. Hinzu kam, daß ihre Funktionssicherheit auf die Dauer durch mechanischen Verschleiß und Alterung der elektrischen Anschlußkontakte stark beeinträchtigt werden konnte.A hair treatment device has already become known from US Pat. No. 4,109,667, in which the temperature dependence of the attraction force of a magnet on a ferromagnetic material arranged in the hair curler with a corresponding Curie point has been used to limit the heating of the hair curlers, but this had to be known Every hair curler used must be equipped with an electric heater, which then had to be connected to a power source in a heating station via touch contacts, and therefore overall, this device required so much cost to manufacture that it was not competitive with other known solutions. In addition, their functional reliability could be severely impaired in the long run by mechanical wear and aging of the electrical connection contacts.

Es stellte sich daher die Aufgabe, eine aus Lockenwicklern und einer Aufheizstation bestehende Haarbehandlungseinrichtung zu schaffen, die die beschriebenen Nachteile und Unvollkommenheiten nicht aufwies, die also eine auf Dauer exakte Erhitzung der Lockenwickler auf die vorgegebene Soll-Temperatur bei geringstem Kostenaufwand gewährleistete. Dabei sollte die Erhitzungsvorrichtung möglichst klein und handlich und trotzdem bezüglich ihrer Erhitzungswirkung effektiv sein. Außerdem sollte die Erhitzung von Lockenwicklern unterschiedlichen Kalibers, wie sie zur Herstellung großer und kleiner Lockenformen verwendet werden, auf ein und demselben Heizdorn ohne jegliche Umstände möglich sein.It was therefore the task of creating a hair treatment device consisting of hair curlers and a heating station which did not have the disadvantages and imperfections described, and which therefore guaranteed exact heating of the hair curlers to the specified target temperature over the long term at the lowest cost. The heating device should be as small and handy as possible and still effective in terms of its heating effect. In addition, it should be possible to heat curlers of different calibers, such as those used to produce large and small curls, on the same heating mandrel without any problems.

Zur Lösung der gestellten Aufgabe wird gemäß der vorliegenden Erfindung eine Haarbehandlungseinrichtung vorgeschlagen, die im Rahmen des eingangs umrissenen Gerätekonzeptes die im kennzeichnenden Teil des Patentanspruchs 1 angegebenen Merkmale aufweist und die entsprechend den Unteransprüchen vorteilhaft ausgestaltet sein bzw. betrieben werden kann.To achieve the object, a hair treatment device is proposed according to the present invention, which has the features specified in the characterizing part of patent claim 1 within the scope of the device concept outlined at the outset and which can advantageously be designed or operated in accordance with the subclaims.

Erfindungsgemäß bestehen demnach die Haltemittel, die die Lockenwickler bis zum Erreichen ihrer Soll-Temperatur auf den Heizdornen fixieren, aus jeweils einem Magneten und einem in oder an jedem Lockenwickler angeordneten und durch das Aufstecken eines Lockenwicklers auf einen Heizdorn in den Halteabstand dieses Magneten bringbaren Körper aus ferromagnetischem Material, dessen Curie-Temperatur der Soll-Temperatur des Lockenwicklers entspricht. Mit Hilfe dieser Haltemittel wird erreicht, daß die beim Aufstecken des Lockenwicklers auf den Heizdorn gespannte Feder zunächst im gespannten Zustand gehalten wird und daß diese Feder den Lockenwickler genau dann vom Heizdorn abhebt und somit die Erhitzung des Lockenwicklers beendet, wenn dieser seine Soll-Temperatur erreicht hat. Da heute Legierungen mit sehr genau festlegbarem Curie-Punkt verfügbar und in jeder praktisch für den vorliegenden Verwendungszweck in Betracht kommenden Raumform lieferbar sind, bestehen bezüglich der konstruktiven Gestaltung sowie der auf diese Weise realisierbaren Haarformungstemperaturen kaum Beschränkungen, und die vorliegende Erfindung schafft eine sehr kostengünstige Haarbehandlungseinrichtung, in der Lockenwickler auf elegante Art exakt und zuverlässig immer auf dieselbe vorgegebene Soll-Temperatur aufgeheizt werden können.According to the invention, the holding means which fix the hair curlers on the heating mandrels until their desired temperature is reached consist of a magnet and a body arranged in or on each hair curler and which can be brought into the holding distance of this magnet by plugging a hair curler onto a heating mandrel ferromagnetic material whose Curie temperature corresponds to the set temperature of the hair roller speaks. With the aid of these holding means it is achieved that the spring tensioned when the hair curler is plugged onto the heating mandrel is initially held in the tensioned state and that this spring lifts the hair curler off the heating mandrel precisely and thus ends the heating of the hair curler when it reaches its desired temperature Has. Since alloys with a very precisely definable Curie point are available today and can be supplied in any spatial shape that is practically suitable for the present purpose, there are hardly any restrictions with regard to the structural design and the hair styling temperatures that can be achieved in this way, and the present invention provides a very inexpensive hair treatment device , in which hair curlers can always be heated up in an elegant way, precisely and reliably, to the same specified target temperature.

Als besonders vorteilhaft hat es sich erwiesen, den Magneten am freien Stirnende des Heizdornes und den magnetisierbaren Körper an dem entsprechenden Stirnende des Lockenwicklers anzuordnen, so daß sich diese beiden zusammenwirkenden Teile bei auf den Heizdorn aufgestecktem Lockenwickler unmittelbar benachbart gegenüberliegen. Diese zentrale Plazierung der Haltemittel bietet wesentliche Herstellungs- und Montagevorteile und bewirkt außerdem besonders zuverlässig, daß die durch die Erwärmung des ferromagnetischen Körpers abnehmende magnetische Anziehungskraft die ihr entgegenwirkende Kraft der gespannten Feder reproduzierbar genau dann unterschreitet und infolgedessen das Abheben des Lockenwickler vom Heizdorn auslöst, wenn der wärmespeichernde Kern des Lockenwicklers gleichmäßig auf die vorgegebene Soll-Temperatur erhitzt ist. Die Wirkung des Magneten kann in an sich bekannter Weise dadurch verbessert werden, daß man ihn mit einem sogenannten Eisenrückschluß versieht.It has proven to be particularly advantageous to arrange the magnet on the free end of the heating mandrel and the magnetizable body on the corresponding end of the hair curler, so that these two interacting parts are directly adjacent when the hair curler is plugged onto the heating mandrel. This central placement of the holding means offers significant manufacturing and assembly advantages and also has a particularly reliable effect that the magnetic attraction force, which decreases due to the heating of the ferromagnetic body, reproducibly falls below the counteracting force of the tensioned spring and consequently triggers the lifting of the hair roller from the heating mandrel when the heat-storing core of the hair curler is evenly heated to the specified target temperature. The effect of the magnet can be improved in a manner known per se by providing it with a so-called iron yoke.

Ein entscheidender Vorteil der vorliegenden Erfindung gegenüber bekannten Lockenwickler-Aufheizvorrichtungen - insbesondere auch gegenüber der in der US-PS 3 415 254 beschriebenen Anordnung - besteht dann, daß durch die erfindungsgemäße magnetische Fixierung des Lockenwicklers auf dem konischen Heizdorn immer ein optimaler Wärmekontakt zwischen Heizdorn und Lockenwickler hergestellt wird, und zwar weitestgehend unabhängig von schwierig einhaltbaren Fertigungstoleranzen, Verschleiß und Materialerwärmung. Dieser Effekt wird dadurch erzielt, daß der Magnet den Lockenwickler bei jedem Aufheizvorgang jedenfalls so weit an den Heizdorn heranzieht, daß die konische Innenfläche des Lockenwicklers vollflächig auf dem genau entsprechend konischen Mantel des Heizdornes aufsitzt.A decisive advantage of the present invention over known hair roller heating devices - in particular also Compared to the arrangement described in US Pat. No. 3,415,254 - there is then that the inventive magnetic fixing of the hair curler on the conical heating mandrel always produces optimal thermal contact between the heating mandrel and hair curler, to a large extent independently of difficult to maintain manufacturing tolerances, wear and tear Material heating. This effect is achieved in that the magnet pulls the curler so far with the heating mandrel during each heating process that the conical inner surface of the curler is seated over the entire area on the precisely conical jacket of the heating mandrel.

Die durch das Auseinanderdrücken des im Lockenwickler angeordneten ferromagnetischen Körpers und des Magneten das Abheben des Lockenwicklers vom Heizdorn bewirkende Feder stützt sich vorzugsweise einerseits am unteren Ende des Heizdornes oder an einem Teil des diesen tragenden Gehäuses und andererseits am unteren Ende des jeweils auf den betreffenden Heizdorn aufgesteckten Lockenwicklers ab. Sie kann jedoch in einer anderen vorteilhaften Ausführungsform der Erfindung auch unmittelbar zwischen dem Magneten und dem ferromagnetischen Körper angeordnet sein, und zwar so, daß der an ihrem unteren Ende befestigte Magnet - dem ferromagnetischen Körper gegenüberliegend - über sie am Lockenwickler befestigt ist und beim Aufstecken des Lockenwicklers auf den Heizdorn an diesem zur Anlage kommt.The spring effecting the spring lifting the curler from the heating mandrel by pushing apart the ferromagnetic body and the magnet arranged in the hair curler is preferably supported on the one hand at the lower end of the heating mandrel or on part of the housing carrying it and on the other hand at the lower end of the respective plugged-on heating mandrel Curlers. However, in another advantageous embodiment of the invention, it can also be arranged directly between the magnet and the ferromagnetic body, in such a way that the magnet fastened at its lower end - opposite the ferromagnetic body - is fastened via it to the hair curler and when the Hair curler on the heating mandrel comes to the plant.

Es ist ein besonderer Vorteil der vorliegenden Erfindung, daß auf ein und demselben Heizdorn auch Lockenwickler mit extrem unterschiedlichen Außendurchmessern genau auf die durch die Curie-Temperatur der in ihnen enthaltenen ferromagnetischen Körper vorbestimmte Soll-Temperatur erhitzbar sind. Daneben kann die vorliegende Erfindung zweckmäßig dadurch ausgestaltet sein, daß zu der Haarbehandlungseinrichtung unterschiedlich aufheizbare Lockenwickler, beispielsweise desselben Kalibers, gehören, die sich durch die Curie-Temperatur der in ihnen enthaltenen ferromagnetischen Körper unterscheiden und äußerlich beispielsweise durch ihre Farbgebung unterscheidbar sind.It is a particular advantage of the present invention that hair curlers with extremely different outside diameters can be heated exactly to the target temperature predetermined by the Curie temperature of the ferromagnetic bodies contained in them on the same heating mandrel. In addition, the present invention can be expediently embodied in that the hair treatment device includes differently heatable hair curlers, for example of the same caliber, which are separate Distinguish by the Curie temperature of the ferromagnetic bodies contained in them and can be distinguished externally, for example by their coloring.

Die Erhitzung der Heizdorne erfolgt gemäß der vorliegenden Erfindung vorzugsweise mittels elektrisch betriebener PTC-Widerstände, die aufgrund ihrer bekannten temperaturabhängigen Widerstands-Charakteristik die Erhitzung der Heizdorne selbstregelnd begrenzen, so daß keine zusätzliche Temperaturregelung erforderlich ist. In einer vorteilhaften Ausführungsform ist unterhalb jedes Heizdornes ein Heizelement angeordnet, und zwar so, daß es mit seiner Oberseite direkt am Fuß des Heizdornes vollflächig wärmeleitend fest anliegt und an seiner Unterseite zum Abfangen seiner thermischen Ausdehnung federnd abgestützt ist. Eine andere, insbesondere im Hinblick auf die erwünschte hohe Aufheizgeschwindigkeit zweckmäßige Ausgestaltung ist dadurch gekennzeichnet, daß die konischen Heizdorne entsprechende, koaxial zur Längsachse der Dorne angeordnete längliche Ausnehmungen enthalten, in denen entsprechend geformte Heizelemente formschlüssig unter Preßsitz fixiert sind.According to the present invention, the heating mandrels are preferably heated by means of electrically operated PTC resistors which, due to their known temperature-dependent resistance characteristics, limit the heating of the heating mandrels in a self-regulating manner, so that no additional temperature control is required. In an advantageous embodiment, a heating element is arranged underneath each heating mandrel, in such a way that its upper surface rests firmly against the entire surface in a heat-conducting manner directly at the foot of the heating mandrel and is resiliently supported on its underside to intercept its thermal expansion. Another embodiment, which is particularly expedient with regard to the desired high heating rate, is characterized in that the conical heating mandrels contain corresponding elongated recesses which are arranged coaxially to the longitudinal axis of the mandrels and in which correspondingly shaped heating elements are positively fixed under a press fit.

Alternativ kann die Erhitzung der Heizdorne auch mit Hilfe von Heizelementen durchgeführt werden, die Einrichtungen zur thermostatisch geregelten katalytischen Verbrennung eines brennbaren Gases enthalten. In dieser Ausführungsform ist die erfindungsgemäße Haarbehandlungseinrichtung völlig autark benutzbar, so daß sie insbesondere auf Reisen und an Orten ohne Netzspannungsanschluß ohne weiteres verwendet werden kann, und außerdem vermeidet sie vollständig das bei netzspannungsbetriebenen Elektrogeräten prinzipiell nicht gänzlich ausschließbare Restrisiko bei unsachgemäßer Handhabung in Nassräumen.Alternatively, the heating mandrels can also be heated with the aid of heating elements which contain devices for thermostatically controlled catalytic combustion of a combustible gas. In this embodiment, the hair treatment device according to the invention can be used completely independently, so that it can be used without any problems, in particular when traveling and in places without a mains voltage connection, and moreover it completely avoids the residual risk, which in principle cannot be entirely ruled out in the case of mains voltage-operated electrical appliances, in the event of improper handling in wet rooms.

Eine Ausgestaltung der vorliegenden Erfindung, die sich durch besondere Benutzungsvorteile auszeichnet, ist dadurch gekennzeichnet, daß die Heizelemente und deren Regelung so eingerichtet - d.h. aufgebaut und eingestellt - und so dimensioniert sind, daß sie die Heizdorne ununterbrochen auf eine Temperatur erhitzen, die um mindestens 100° Celsius über der Soll-Temperatur der Lockenwickler liegt. Hierdurch wird erreicht, daß die Heizdorne beim Aufstecken der Lockenwickler nicht nur vorgewärmt, sondern im Verhältnis zu deren Soll-Temperatur ganz erheblich überhitzt sind, so daß sich der Aufheizvorgang der Lockenwickler in allerkürzester Zeit, d.h. innerhalb weniger Sekunden, vollzieht. Diese Ausführungsform kann mit Vorteil dahingehend abgewandelt werden, daß sie nur noch einen einzigen Heizdorn enthält; denn es hat sich gezeigt, daß dieser infolge der durch die Übertemperatur erzielten extrem kurzen Aufheizzeit der Lockenwickler selbst bei zügiger Arbeitsweise ohne weiteres in der Lage ist, ausreichend schnell einen Lockenwickler nach dem anderen auf seine Soll-Temperatur zu bringen. Außerdem ergeben sich hiermit wesentliche Einsparungen bei den Herstellkosten der Aufheizeinheit sowie kleine Geräteabmessungen und geringes Gewicht.An embodiment of the present invention, which is distinguished by particular advantages in use, is characterized in that the heating elements and their regulation are set up in this way - ie built and adjusted - and dimensioned so that they continuously heat the mandrels to a temperature that is at least 100 ° Celsius above the target temperature of the hair curlers. This ensures that the heating pins are not only preheated when the hair curlers are plugged on, but are very significantly overheated in relation to their target temperature, so that the hair curlers heat up in the shortest possible time, ie within a few seconds. This embodiment can be modified to the advantage that it only contains a single heating mandrel; because it has been shown that due to the extremely short heating-up time of the hair curlers achieved by the excess temperature, even with rapid operation, it is readily able to bring one hair roller after another to its desired temperature sufficiently quickly. This also results in significant savings in the manufacturing costs of the heating unit, as well as small device dimensions and low weight.

Zur Vermeidung von Energieverlusten durch Wärme-Abstrahlung und -Konvektion wird ergänzend vorgeschlagen, den Heizdorn in einem das Aufstecken der Lockenwickler ermöglichenden Abstand von einer wärmeisolierenden und/oder wärmereflektierenden Wandung seitlich zu umschließen. Gleichzeitig werden durch diese Maßnahme Verbrennungen durch versehentliches Berühren des überhitzten Heizdornes vermieden. Um Verbrennungen am freien Stirnende des Heizdornes zu verhindern, weist das Stirnende vorzugsweise einen Berührungsschutz in Form einer wärmeisolierenden, hitzebeständigen Kappe oder Platte auf.In order to avoid energy losses due to heat radiation and convection, it is additionally proposed to laterally enclose the heating mandrel at a distance from a heat-insulating and / or heat-reflecting wall that enables the curlers to be attached. At the same time, this measure prevents burns due to accidental contact with the overheated heating mandrel. In order to prevent burns on the free end of the heating mandrel, the end preferably has a touch guard in the form of a heat-insulating, heat-resistant cap or plate.

Die beigefügte Zeichnung veranschaulicht die vorliegende Erfindung anhand vereinfacht dargestellter Ausführungsbeispiele:

  • Fig. 1 zeigt einen auf einen Heizdorn aufgesteckten Lockenwickler während des Aufheizvorganges;
  • Fig. 2 gibt den nach Erreichen seiner Soll-Temperatur vom Heizdorn abgehobenen Lockenwickler wieder;
  • Fig. 3 zeigt einen Lockenwickler, der sich von der Ausführungsform der ersten beiden Figuren bezüglich der Anordnung des Magneten und der Abhebefeder unterscheidet.
The accompanying drawing illustrates the present invention with the aid of simplified exemplary embodiments:
  • Fig. 1 shows a hair curler plugged onto a heating mandrel during the heating process;
  • Fig. 2 shows the hair curler lifted from the heating mandrel after reaching its target temperature;
  • Fig. 3 shows a hair curler, which differs from the embodiment of the first two figures in the arrangement of the magnet and the lifting spring.

Im einzelnen ist in Figur 1 der Lockenwickler 1 zu erkennen, der im Bereich seines oberen Endes den aus ferromagnetischem Material bestehenden Körper 3 enthält und der durch leichtes Niederdrücken gegen die Kraft der elastischen Feder 5 auf den Heizdorn 2 aufgesteckt worden ist, so daß er durch die von dem im freien Stirnende des Heizdornes 2 angeordneten Magneten 4 auf den ferromagnetischen Körper 3 ausgeübte Kraft in dieser Position festgehalten wird.In detail, the curler 1 can be seen in Figure 1, which contains the body 3 made of ferromagnetic material in the region of its upper end and which has been pushed onto the heating mandrel 2 by gently depressing it against the force of the elastic spring 5, so that it is pushed through the force exerted by the magnet 4 arranged in the free end face of the heating mandrel 2 on the ferromagnetic body 3 is held in this position.

Sobald das in der dargestellten Ausführungsform am Fuß des Heizdornes 2 angeordnete, hier als PTC-Heizwiderstand ausgebildete Heizelement 6 auf dem Weg über den Dorn 2 und den Lockenwickler 1 - das heißt, insbesondere dessen aus wärmespeicherndem Material bestehenden Kern 1.1 - schließlich auch den ferromagnetischen Körper 3 auf dessen Curie-Temperatur und somit auf die Soll-Temperatur des Lockenwicklers erhitzt hat, verliert der Magnet seine Kraftwirkung auf den Körper 3 mit der Folge, daß die Feder 5 sich entspannen und den Lockenwickler 1 vom Heizdorn abheben kann, wodurch der Lockenwickler 1 die in Figur 2 dargestellte Lage einnimmt, in der er nicht weiter erhitzt wird, da sein direkter thermischer Kontakt zum Heizdorn vollständig unterbrochen ist.As soon as the heating element 6 arranged in the illustrated embodiment at the foot of the heating mandrel 2, here designed as a PTC heating resistor, on the way over the mandrel 2 and the hair curler 1 - that is to say in particular its core 1.1 made of heat-storing material - finally also the ferromagnetic body 3 has heated to its Curie temperature and thus to the target temperature of the hair curler, the magnet loses its force on the body 3 with the result that the spring 5 can relax and the hair curler 1 can lift off the heating mandrel, whereby the hair curler 1 occupies the position shown in Figure 2, in which it is not heated further, since its direct thermal contact with the heating mandrel is completely interrupted.

Der Heizdorn 2 mit dem an seinem Fuß angeordneten Heizelement 6 ist mittels in der Zeichnung nicht dargestellter Konstruktionselemente im Inneren eines Gehäuses 7 fest angeordnet. Dabei sind Teile 7.1 der Gehäusewandung, die den Heizdorn in einem das Aufstecken der Lockenwickler ermöglichenden Abstand umschließen, wärmeisolierend und/oder wärmereflektierend ausgeführt und begrenzen hierdurch Wärmeverluste infolge Abstrahlung und Konvektion. Außerdem verhindert das den Heizdorn 2 umschließende Gehäuse zusammen mit der am Stirnende des Heizdornes angebrachten Schutzkappe 2.1, daß ein Benutzer der erfindungsgemäßen Einrichtung sich durch versehentliche Berührung des aufgeheizten Dornes Verbrennungen zuziehen kann.The heating mandrel 2 with the heating element 6 arranged on its foot is fixedly arranged in the interior of a housing 7 by means of construction elements (not shown in the drawing). Are Parts 7.1 of the housing wall, which enclose the heating mandrel at a distance that allows the curlers to be plugged on, are designed to be heat-insulating and / or heat-reflecting and thereby limit heat losses due to radiation and convection. In addition, the housing surrounding the heating mandrel 2, together with the protective cap 2.1 attached to the end of the heating mandrel, prevents a user of the device according to the invention from being burned by accidental contact with the heated mandrel.

Figur 3 gibt die Ausgestaltung der vorliegenden Erfindung gemäß Anspruch 4 wieder, bei der auch der Magnet 4 und die zusammendrückbare Abhebefeder 5 Bestandteile des Lockenwicklers 1 sind.Figure 3 shows the embodiment of the present invention according to claim 4, in which the magnet 4 and the compressible lifting spring 5 are components of the curler 1.

Um die durch die erfindungsgemäße Haarbehandlungseinrichtung und ihre Ausgestaltungen erzielbaren Vorteile optimal zu nutzen, wird ergänzend vorgeschlagen, sie stets so zu betreiben, daß der Heizdorn bzw. die Heizdorne während der gesamten Benutzungsdauer der Einrichtung ohne Unterbrechung auf eine Temperatur erhitzt werden, die wesentlich über der Soll-Temperatur der Lockenwickler liegt. Dabei sind mit "wesentlich über der Soll-Temperatur der Lockenwickler" solche Temperaturen gemeint, die mindestens oberhalb der Haar-Schädigungstemperatur liegen und aus diesem Grunde üblicherweise für die Erhitzung von Lockenwicklern nicht in Betracht gezogen werden. Vorzugsweise liegt die bei der vorgeschlagenen Verfahrensweise angewandte Dauertemperatur der Heizdorne jedoch mindestens um 100° Celsius oberhalb der Soll-Temperatur der Lockenwickler, beispielsweise bei 300° Celsius.In order to make optimum use of the advantages which can be achieved by the hair treatment device according to the invention and its designs, it is additionally proposed to always operate it in such a way that the heating mandrel or the heating mandrels are continuously heated to a temperature which is significantly higher than the temperature during the entire period of use of the device The target temperature of the curlers is. In this context, "substantially above the target temperature of the hair curlers" means temperatures which are at least above the hair damage temperature and for this reason are usually not taken into account for heating hair curlers. However, the permanent temperature of the heating mandrels used in the proposed procedure is preferably at least 100 ° Celsius above the target temperature of the hair curlers, for example 300 ° Celsius.

Claims (14)

1. Haarbehandlungseinrichtung, bestehend aus Lockenwicklern und einer mindestens einen beheizbaren Dorn enthaltenden Vorrichtung zur Erhitzung desselben, wobei jeder Lockenwickler einen ein wärmespeicherndes Material enthaltenden Mantel aufweist, der einen an seiner größeren Stirnseite offenen konischen Innenraum umschließt und durch Aufstecken auf einen entsprechend diesem Innenraum konisch geformten, beheizten Dorn auf seine Soll-Temperatur erhitzbar ist und wobei Haltemittel vorgesehen sind, die die Entspannung einer jeweils beim Aufstecken eines Lockenwicklers auf den Heizdorn gespannten Feder und damit das durch diese Feder bewirkbare Abheben des Lockenwicklers vom Heizdorn verhindern, solange sich der Lockenwickler unterhalb seiner Soll-Temperatur befindet, dadurch gekennzeichnet, daß die Haltemittel jeweils aus einem Magneten (4) und einem in oder an jedem Lockenwickler (1) angoerdneten und durch das Aufstecken des Lockenwicklers (1) auf den Heizdorn (2) in den Halteabstand dieses Magneten (4) bringbaren Körper (3) aus ferromagnetischem Material bestehen, dessen Curie-Temperatur der Soll-Temperatur des Lockenwicklers (1) entspricht.1. Hair treatment device, consisting of curlers and a device containing at least one heated mandrel for heating the same, each curler having a jacket containing a heat-storing material, which encloses an open conical interior on its larger end face and by plugging onto a conically shaped interior , heated mandrel can be heated to its desired temperature and holding means are provided which prevent the relaxation of a spring tensioned when a hair curler is placed on the heating mandrel and thus prevent the hair curler from being raised by the spring, as long as the hair curler is below it Desired temperature, characterized in that the holding means each made of a magnet (4) and one in or on each hair roller (1), and by plugging the hair roller (1) onto the heating mandrel (2) into the holding distance it magnet (4) bringable body (3) consist of ferromagnetic material, the Curie temperature corresponds to the target temperature of the hair curler (1). 2. Haarbehandlungseinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Magnet (4) jeweils am freien Stirnende des Heizdornes (2) und der ferromagnetische Körper (3) im Bereich des entsprechenden Stirnendes des Lockenwicklers (1) angeordnet und befestigt ist.2. Hair treatment device according to claim 1, characterized in that the magnet (4) at the free end of the heating mandrel (2) and the ferromagnetic body (3) in the region of the corresponding end of the hair curler (1) is arranged and fixed. 3. Haarbehandlungseinrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die den Magneten (4) und den Körper (3) auseinanderdrückende und hierdurch den Lockenwickler vom Heizdorn (2) hebende Feder (5) sich jeweils einerseits am unteren Ende des Heizdornes (2) oder an dem diesen tragenden Gehäuse (7) und andererseits am unteren Ende des jeweils auf den Heizdorn (2) aufgesteckten Lockenwicklers (1) abstützt.3. Hair treatment device according to claim 1 or 2, characterized in that the magnet (4) and the body (3) pushing apart and thereby lifting the curler from the heating mandrel (2) spring (5) each on the one hand supports the lower end of the heating mandrel (2) or on the housing (7) carrying it and, on the other hand, on the lower end of the hair curler (1) plugged onto the heating mandrel (2). 4. Haarbehandlungseinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Magnet (4) über die zusammendrückbare Abhebefeder (5) - dem ferromagnetischen Körper gegenüberliegend - jeweils so am Lockenwickler (1) befestigt ist, daß er beim Aufstecken des Lockenwicklers auf den Heizdorn (2) an letzterem zur Anlage kommt.4. Hair treatment device according to claim 1, characterized in that the magnet (4) on the compressible lifting spring (5) - opposite the ferromagnetic body - is each attached to the hair roller (1) in such a way that when the hair roller is plugged onto the heating mandrel (2nd ) comes into contact with the latter. 5. Haarbehandlungseinrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß unterschiedlich aufheizbare Lockenwickler (1) zu ihr gehören, die ferromagnetische Körper (3) mit unterschiedlichen Curie-Temperaturen enthalten.5. Hair treatment device according to one of claims 1 to 4, characterized in that differently heatable hair curlers (1) belong to it, which contain ferromagnetic bodies (3) with different Curie temperatures. 6. Haarbehandlungseinrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß zur Erhitzung der vorhandenen Heizdorne (2) elektrisch betriebene Heizelemente (6) mit Kaltleiter-Charakteristik (PTC) vorgesehen sind.6. Hair treatment device according to one of claims 1 to 5, characterized in that electrically heated heating elements (6) with PTC characteristics (PTC) are provided for heating the existing heating mandrels (2). 7. Haarbehandlungseinrichtung nach Anspruch 6, dadurch gekennzeichnet, daß die Kaltleiter-Heizelemente (6) mit ihrer Oberseite am Fuß der Heizdorne (2) vollflächig wärmeleitend fest anliegen und an ihrer Unterseite elastisch federnd abgestützt sind.7. Hair treatment device according to claim 6, characterized in that the thermistor heating elements (6) with their upper surface at the base of the heating mandrels (2) lie firmly over the entire surface in a heat-conducting manner and are elastically resiliently supported on their underside. 8. Haarbehandlungseinrichtung nach Anspruch 6, dadurch gekennzeichnet, daß die konischen Heizdorne (2) entsprechende, koaxial zur Längsachse der Dorne angeordnete Ausnehmungen enthalten, in denen entsprechend geformte Heizelemente formschlüssig unter Preßsitz fixiert sind.8. A hair treatment device according to claim 6, characterized in that the conical heating mandrels (2) contain corresponding recesses arranged coaxially to the longitudinal axis of the mandrels, in which correspondingly shaped heating elements are positively fixed under a press fit. 9. Haarbehandlungseinrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß zur Erhitzung der vorhandenen Heizdorne (2) mittels katalytischer Verbrennung eines brennbaren Gases betriebene, thermostatisch geregelte Heizelemente (6) vorgesehen sind.9. Hair treatment device according to one of claims 1 to 5, characterized in that thermostatically controlled heating elements (6) are provided for heating the existing heating mandrels (2) by means of catalytic combustion of a combustible gas. 10. Haarbehandlungseinrichtung nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß die freien Stirnenden der Heizdorne (2) als Berührungsschutz wärmeisolierende, hitzebeständige kappen- oder plattenförmige Abdeckungen aufweisen.10. Hair treatment device according to one of claims 1 to 9, characterized in that the free ends of the heating mandrels (2) have heat-insulating, heat-resistant cap or plate-shaped covers as contact protection. 11. Haarbehandlungseinrichtung nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß die Heizelemente (6) und ihre Regelung so dimensioniert und eingerichtet sind, daß sie die Heizdorne (2) ununterbrochen auf eine Temperatur erhitzen, die um mindestens 100° Celsius über der Soll-Temperatur der Lockenwickler liegt.11. Hair treatment device according to one of claims 1 to 10, characterized in that the heating elements (6) and their control are dimensioned and set up so that they continuously heat the heating mandrels (2) to a temperature which is at least 100 ° Celsius above the The target temperature of the curlers is. 12. Haarbehandlungseinrichtung nach Anspruch 11, dadurch gekennzeichnet, daß sie nur einen einzigen Heizdorn (2) enthält.12. Hair treatment device according to claim 11, characterized in that it contains only a single heating mandrel (2). 13. Haarbehandlungseinrichtung nach Anspruch 12, dadurch gekennzeichnet, daß der Heizdorn in einem das Aufstecken der Lockenwickler (1) ermöglichenden Abstand von einer wärmeisolierenden und/oder wärmereflektierenden Wandung (7.1) seitlich umschlossen ist.13. A hair treatment device according to claim 12, characterized in that the heating mandrel is laterally enclosed at a distance from a heat-insulating and / or heat-reflecting wall (7.1) which allows the curlers (1) to be plugged on. 14. Verfahren zum Betreiben einer Haarbehandlungseinrichtung nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, daß die Heizdorne (2) ohne Unterbrechung auf eine Temperatur erhitzt werden, die wesentlich über der Soll-Temperatur der Lockenwickler (1) liegt.14. A method for operating a hair treatment device according to one of claims 1 to 13, characterized in that the heating mandrels (2) are continuously heated to a temperature which is substantially above the target temperature of the hair curlers (1).
EP85111267A 1984-09-17 1985-09-06 Hair treatment device Expired EP0175232B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85111267T ATE39824T1 (en) 1984-09-17 1985-09-06 HAIR TREATMENT FACILITIES.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843434072 DE3434072A1 (en) 1984-09-17 1984-09-17 HAIR TREATMENT DEVICE
DE3434072 1984-09-17

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EP0175232A2 true EP0175232A2 (en) 1986-03-26
EP0175232A3 EP0175232A3 (en) 1986-12-30
EP0175232B1 EP0175232B1 (en) 1989-01-11

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US (1) US4691095A (en)
EP (1) EP0175232B1 (en)
JP (1) JPS6173605A (en)
AT (1) ATE39824T1 (en)
AU (1) AU4689685A (en)
CA (1) CA1243916A (en)
DE (2) DE3434072A1 (en)
DK (1) DK406085A (en)

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Publication number Publication date
JPS6173605A (en) 1986-04-15
EP0175232A3 (en) 1986-12-30
CA1243916A (en) 1988-11-01
EP0175232B1 (en) 1989-01-11
AU4689685A (en) 1986-03-27
DK406085D0 (en) 1985-09-06
DK406085A (en) 1986-03-18
ATE39824T1 (en) 1989-01-15
DE3567365D1 (en) 1989-02-16
DE3434072A1 (en) 1986-03-27
US4691095A (en) 1987-09-01

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