EP0324695A1 - Hair roller for permanent waving - Google Patents

Hair roller for permanent waving Download PDF

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Publication number
EP0324695A1
EP0324695A1 EP89400108A EP89400108A EP0324695A1 EP 0324695 A1 EP0324695 A1 EP 0324695A1 EP 89400108 A EP89400108 A EP 89400108A EP 89400108 A EP89400108 A EP 89400108A EP 0324695 A1 EP0324695 A1 EP 0324695A1
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EP
European Patent Office
Prior art keywords
cartridge
shell
heating
hair
curler
Prior art date
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
EP89400108A
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German (de)
French (fr)
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EP0324695B1 (en
Inventor
Hubert Froger
Rémi Petit
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Perma SA
Original Assignee
Perma SA
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Filing date
Publication date
Application filed by Perma SA filed Critical Perma SA
Priority to AT89400108T priority Critical patent/ATE87186T1/en
Publication of EP0324695A1 publication Critical patent/EP0324695A1/en
Application granted granted Critical
Publication of EP0324695B1 publication Critical patent/EP0324695B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • A45D4/14—Separate devices designed for heating hair curlers or hair-wavers with chemical heat reaction and heat storage
    • 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
    • A45D2/12—Hair winders or hair curlers for use parallel to the scalp, i.e. flat-curlers
    • A45D2/122—Means for fastening the hair on the curler body
    • 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

Definitions

  • the invention relates to a curler for the realization of permanent waves with heating of the hair.
  • the heating member consists of a sleeve comprising two articulated parts forming a clamp which closes on the curler and the coiled hair.
  • the sleeves are made of a material which accumulates heat, for example rubber cabbage and are placed on heating bars on which the operator takes them one after the other.
  • the fitting of the sleeves can therefore be done fairly quickly, after cold winding of all the curlers, which ensures a certain homogeneity of the heating.
  • such heating sleeves also have drawbacks; in particular, they are quite heavy and bulky and are likely to get crooked on the head by burning the scalp.
  • the heating member consists of a removable cartridge produced so as to accumulate heat in order to restore it thereafter to the coiled hair and which is strung in the curler after being heated separately.
  • the heating element forming a heat accumulator can be constituted by an electrical resistance placed inside the cartridge (US-A-3250895) or else by a product which melts at a temperature which can be tolerated by the hair taking into account the insulating effect of the curler.
  • the heating product is brought, by prior heating, above its melting temperature and, after threading the cartridge into the curler, it solidifies by releasing its latent heat of fusion (DE-A-2551379 ).
  • the removable cartridge must be provided with a member making it possible to grasp it, for example an unheated part forming a button placed at one of its ends.
  • a member making it possible to grasp it, for example an unheated part forming a button placed at one of its ends.
  • the operator must be able to grasp the cartridge without special precautions and the button grip should therefore be relatively large. It may then unbalance the curler when the cartridge is threaded.
  • the subject of the invention is a curler of this type, that is to say comprising a removable heating cartridge, in which the cartridge is associated with a gripping member large enough to facilitate the handling of the cartridge and which does not however risk not to unbalance the curler.
  • the lock of hair is kept rolled up on the curler and it is possible to use a pin, an elastic link or a clamp for styling the curler for this purpose.
  • the heating member consists of a rubber sleeve having the shape of a clamp, the hair is perfectly maintained and the heating can be carried out to the root.
  • One of the essential characteristics of the invention resides in the fact that the same member is used for gripping the cartridge and for holding the hair.
  • the heating cartridge is associated with a shell in the form of a cylindrical sector provided with an opening extending over its entire length and pivotally mounted around an axis orthogonal to the longitudinal axis of the cartridge on a support piece provided at one end of the latter, said shell possibly taking two positions, respectively an open position for which the shell is spaced from the cartridge and constitutes a gripping member allowing the manipulation thereof; and a closed position for maintaining hair for which the shell is closed on the tubular support, after introduction of the cartridge, by styling the lock wound on said support.
  • the shell consists of a solid wall covering most of the curler and of the coiled wick, except the root, so as to concentrate on the hair the heat emitted by the cartridge.
  • the internal face of the shell is covered with a reflective surface to increase the capacity for concentrating heat.
  • the removable heating cartridge can be produced anyway allowing heat to accumulate, but it is particularly advantageous to use for this purpose a product capable of accumulating calories by prior heating and then returning them to the coiled hair, the cartridge being made up, for this purpose, of a cylindrical tube limiting an internal axial space closed in a sealed manner at its two ends and enclosing the heating product.
  • the tubular support can be constituted by a solid wall possibly pierced with orifices, the external face of which has a shape suitable for winding the hair and inside which an axial duct with smooth walls is formed. diameter substantially equal, apart from play, to that of the removable cartridge so that the heat is transmitted uniformly over the entire surface of the bore.
  • the heating product is brought by prior heating above its melting temperature and solidifies, after threading the cartridge into the support, releasing its latent heat of fusion.
  • the heating cartridge associated with a shell full of heat concentration on the hair, is used essentially for the production of permanent waves.
  • the heating must continue for a fairly long time and the curler must be smaller.
  • the heating cartridge must therefore have a very small diameter itself, for example of the order of 5 to 7 mm, and since it must be given sufficient rigidity, the heating product can only occupy a very small space .
  • Such a heating product can consist, for example, of a molten salt such as barium hydroxide or stromtium.
  • the curler therefore consists of a tubular support 1, a removable heating cartridge 2 and a shell 3 shown respectively in Figures 1, 2 and 3.
  • the support 1 consists of an elongated plastic tube, the outer face 11 of which advantageously has a curved shape, thinner in its central part than at the ends so as to facilitate winding and holding the hair.
  • This shape is moreover well known and one of the advantages of the invention lies in the fact that it is possible to apply it to curlers of normal shape and size whereas, until now, curlers for interior heating were larger and usable only for styling.
  • the curler preferably consists of a solid wall 12 inside which is formed an axial duct 13 limited by a smooth wall 14. Transverse orifices 15 distributed along the curler allow the interior to be placed in communication and the outside of the latter.
  • the removable cartridge 2 shown in FIG. 2 consists of a hollow plastic tube 21, closed at both ends so as to limit a sealed internal space 22 which is filled with a heating product 23. At the one of its ends, the tube 21 is fixed to a support piece 24 which may have the form of a plate of circular section.
  • Two diametrically opposed pins 25 are fixed on either side of the plate 24.
  • the cartridge 2 is associated with a shell 3 consisting of a smooth wall 31 of plastic material, in the form of a cylindrical sector whose smooth internal face 33 has a diameter D2 greater than the maximum diameter D1 of the curler and which is provided, on all of its length, opening 30 of width 1 a little less than the diameter of the coiled wick.
  • the shell 3 is provided at one of its ends with two diametrically opposite orifices 32 in which the pins 25 of the support piece 24 can engage, as shown in cross section in FIG. 5.
  • the pins 25 thus form two aligned pins defining an axis of rotation 20 around which the shell 3 can rotate.
  • the shell 3 can therefore take two positions, respectively an open position for which the shell 3 is crushed by the cartridge 2 and a closed position for which the shell 3 covers the cartridge.
  • the hair 4 is wound in strands on the tubular supports 1 which, as indicated, can have the usual shape and dimensions of conventional curlers and have on their external face 11 means for hanging the hair such that, by example, small protrusions 16.
  • the removable cartridges are heated for example in an oven, in a water bath, on an electric appliance or in any suitable way.
  • the shell 3 is opened so as to be placed in the extension of the cartridge 2 as shown in FIG. 6.
  • the shell 3 constitutes a gripping member of sufficiently large dimension to be easily grasped by the opera tor and not likely to be heated, even by conduction.
  • the cartridge 2 thus being introduced into the conduit 13 which has substantially the same diameter, apart from the sliding clearance, the heat is transmitted from the cartridge 2 to the tubular support and to the hair by radiation but also by conduction since, in practice, the cartridge is in contact with the curler over its entire length.
  • the mode of transmission by radiation may be sufficient and, depending on the case, it is also possible to use curlers in which the cartridge is kept at a distance from the wall by centering members such as, for example, two or three spaced rings.
  • the shell 3 is made of a rigid material which is elastically deformable so that, when it is closed on the wick 4 wound on the curler, the width 1 of the slot 30 increases slightly. The shell then tightens on the wick which it surrounds practically to the root by exerting a slight pressure. Because it consists of a full and smooth wall 31, the shell 3 therefore makes it possible, according to one of the essential advantages of the invention, to concentrate on the coiled wick the heat radiated by the cartridge 2, the heating thus being produced both from the inside and from the outside.
  • the internal face 32 of the shell 3 is entirely covered with a reflective surface 35 which may consist of a glossy coating such as a sheet of foil. aluminum simply bonded to the internal face 2 in a particularly simple and inexpensive embodiment.
  • the elasticity of the wall 31 constituting the shell 3 facilitates the removable mounting of the shell 3 on the support part 24 by engagement of the pins 25 in the orifices 32.
  • the support piece 24 consists of a circular plate of the same diameter as that of the internal face 33 of the shell which therefore applies exactly to the circular lateral wall of the plate 24.
  • the latter has a thickness e sufficient to result in a slight blocking of the shell in the open or closed position in alignment with the cartridge, the elasticity of the wall 31 allowing the lateral edges 34 to move apart during the rotation of the shell.
  • the invention can be applied to curlers of conventional shapes and dimensions, the diameter of which can range, for example, from 6.5 to 12 mm.
  • the internal chamber 23 in which the product of heating is particularly small It should therefore have been feared that it would not be possible to obtain a sufficient temperature and heating time with such a small quantity of product capable of accumulating heat.
  • the heating product can be brought to a temperature slightly higher than in the case of classic curlers with internal heating.
  • a product whose melting temperature is of the order of the maximum temperature that can be given to the cartridge, taking into account the heat loss between the latter and the outside face of the curler and the temperature that the hair and the head can withstand.
  • a product whose melting temperature will be between 50 ° C and 120 ° C.
  • the heating product contained in the space 23 is therefore melted during the prior heating of the cartridge and solidifies after introduction into the curler, yielding to the hair its latent heat of fusion. This results in a particularly efficient heating mode for a small volume.
  • the amount of heat thus released is substantially constant and, in particular, does not depend on the prior heating time. It is thus possible to precisely control the heating conditions and, consequently, the efficiency of the ripple treatment.
  • the heating product will generally consist of a molten salt, but other products could be used, as long as the desired thermal characteristics are obtained.
  • the product is compatible with the material of which the tube 21 constituting the cartridge 2 is made and which must on the one hand not react with the product because a gaseous release could produce an explosion and, on the other hand , have sufficient mechanical strength for the wall 21 to have a reduced thickness and nevertheless withstand the pressure resulting from the change of state. It is also necessary that the cartridge has a relatively reduced coefficient of expansion so as to slip into the axial duct 13 with a simple clearance necessary for sliding.

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  • Hair Curling (AREA)
  • Cosmetics (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

The subject of the invention is a hair roller for producing permanent waves, comprising an elongated tubular support (1) and a heating cartridge (2) in the form of a cylindrical tube which can be heated separately and then inserted into the tubular support (1) after rolling-up of the hair (4). According to the invention, the heating cartridge (2) is associated with a shell (3) in the form of a cylindrical sector open over its entire length and mounted so as to pivot about an axis (20) orthogonal to the longitudinal axis (10) of the cartridge, on a support piece (24) provided at one end of the latter, the said shell being capable of assuming two positions, respectively an open manipulating position and a closed hair-holding position for which the shell (3) is re-closed over the tubular support (1), after insertion of the cartridge (2), covering the lock (4) rolled up on the said support (1). <IMAGE>

Description

L'invention a pour objet un bigoudi pour la réalisation d'ondulations permanentes avec chauffage du cheveu.The invention relates to a curler for the realization of permanent waves with heating of the hair.

On connait depuis longtemps des procédés de réalisation d'ondulations permanentes des che­veux dans lesquels les cheveux enroulés sur des bigoudis sont imprégnés d'un produit liquide puis soumis à un chauffage pendant un certain temps pour augmenter l'efficacité du produit. Ce chauf­fage peut être réalisé simplement dans un casque séchoir mais on peut aussi chauffer le bigoudi lui-même.Methods have been known for a long time for producing permanent waves of the hair in which the hair wound on curlers is impregnated with a liquid product and then subjected to heating for a certain time to increase the effectiveness of the product. This heating can be carried out simply in a dryer helmet but it is also possible to heat the curler itself.

Il y a plusieurs dizaines d'années, on réalisait le chauffage des bigoudis de façon élec­trique mais ceci présentait de nombreux inconvé­nients. C'est pourquoi, par la suite, on a préféré utiliser des dispositifs susceptibles d'accumuler de la chaleur pour la restituer ensuite aux che­veux enroulés.Several decades ago, the curlers were heated electrically, but this had many drawbacks. This is why, subsequently, it was preferred to use devices capable of accumulating heat in order to then restore it to the coiled hair.

On peut envisager, par exemple, de chauffer le bigoudi lui-même à l'avance, mais dans ce cas, l'opérateur est obligé de manipuler des bigoudis chauds ce qui l'oblige à limiter la tem­pérature de chauffage et par conséquent la quan­tité de calories accumulées.We can consider, for example, heating the curler itself in advance, but in this case, the operator is forced to handle hot curlers which forces him to limit the heating temperature and therefore the quantity calories accumulated.

On préfère donc, souvent, associer au bigoudi un organe de chauffage amovible.It is therefore often preferred to associate with the curler a removable heating member.

Dans un mode de réalisation utilisé cou­ramment, l'organe de chauffage est constitué d'un manchon comprenant deux parties articulées formant une pince qui se referme sur le bigoudi et les cheveux enroulés.In an embodiment commonly used, the heating member consists of a sleeve comprising two articulated parts forming a clamp which closes on the curler and the coiled hair.

Les manchons sont réalisés en une matiè­re accumulant la chaleur, par exemple du caout­ chouc et sont placés sur des barres de chauffage sur lesquelles l'opérateur les prend l'un après l'autre. La pose des manchons peut donc se faire assez rapidement, après enroulement à froid de tous les bigoudis, ce qui assure une certaine ho­mogénéité du chauffage. Cependant, de tel man­chons de chauffage ont aussi des inconvénients; en particulier, ils sont assez lourds et encombrants et risquent de se placer de travers sur la tête en brûlant le cuir chevelu.The sleeves are made of a material which accumulates heat, for example rubber cabbage and are placed on heating bars on which the operator takes them one after the other. The fitting of the sleeves can therefore be done fairly quickly, after cold winding of all the curlers, which ensures a certain homogeneity of the heating. However, such heating sleeves also have drawbacks; in particular, they are quite heavy and bulky and are likely to get crooked on the head by burning the scalp.

Dans un autre mode de réalisation, le bigoudi étant constitué d'un support tubulaire creux, l'organe de chauffage est constitué d'une cartouche amovible réalisée de façon à accumuler de la chaleur pour la restituer par la suite aux cheveux enroulés et qui est enfilée dans le bigou­di après avoir été chauffée séparément. L'élément chauffant formant accumulateur de chaleur peut être constitué par une résistance électrique pla­cée à l'intérieur de la cartouche (US-A-3250895) ou bien par un produit qui fond à une température supportable par les cheveux compte-tenu de l'effet isolant du bigoudi. Dans ce cas, le produit de chauffage est porté, par chauffage préalable, au-­dessus de sa température de fusion et, après enfi­lement de la cartouche dans le bigoudi, il se solidife en libérant sa chaleur latente de fusion (DE-A-2551379).In another embodiment, the curler being constituted by a hollow tubular support, the heating member consists of a removable cartridge produced so as to accumulate heat in order to restore it thereafter to the coiled hair and which is strung in the curler after being heated separately. The heating element forming a heat accumulator can be constituted by an electrical resistance placed inside the cartridge (US-A-3250895) or else by a product which melts at a temperature which can be tolerated by the hair taking into account the insulating effect of the curler. In this case, the heating product is brought, by prior heating, above its melting temperature and, after threading the cartridge into the curler, it solidifies by releasing its latent heat of fusion (DE-A-2551379 ).

Pour que l'opérateur ne risque pas de se brûler, la cartouche amovible doit être munie d'un organe permettant de la saisir, par exemple une partie non chauffée formant un bouton placée à l'une de ses extrémités. Cependant, pour agir ra­pidement, l'opérateur doit pouvoir saisir la car­touche sans précaution particulière et le bouton de préhension doit donc être relativement impor­tant. Il risque alors de déséquilibrer le bigoudi lorsque la cartouche est enfilée.So that the operator does not risk being burned, the removable cartridge must be provided with a member making it possible to grasp it, for example an unheated part forming a button placed at one of its ends. However, to act quickly, the operator must be able to grasp the cartridge without special precautions and the button grip should therefore be relatively large. It may then unbalance the curler when the cartridge is threaded.

L'invention a pour objet un bigoudi de ce type, c'est-à-dire comprenant une cartouche de chauffage amovible, dans lequel le cartouche est associée à un organe de préhension assez important pour faciliter la manipulation de la cartouche et ne risquant cependant pas de déséquilibrer le bi­goudi.The subject of the invention is a curler of this type, that is to say comprising a removable heating cartridge, in which the cartridge is associated with a gripping member large enough to facilitate the handling of the cartridge and which does not however risk not to unbalance the curler.

Par ailleurs, il est nécessaire que la mèche de cheveu soit maintenue enroulée sur le bi­goudi et on peut utiliser à cet effet une épingle, un lien élastique ou bien une pince coiffant le bigoudi. en particulier, lorsque l'organe de chauffage est constitué d'un manchon en caoutchouc ayant la forme d'une pince, les cheveux sont par­faitement maintenus et le chauffage peut être réa­lisé jusqu'à la racine.Furthermore, it is necessary for the lock of hair to be kept rolled up on the curler and it is possible to use a pin, an elastic link or a clamp for styling the curler for this purpose. in particular, when the heating member consists of a rubber sleeve having the shape of a clamp, the hair is perfectly maintained and the heating can be carried out to the root.

L'une des caractéristiques essentielles de l'invention réside dans le fait que l'on utili­se le même organe pour la préhension de la cartou­che et pour le maintien des cheveux.One of the essential characteristics of the invention resides in the fact that the same member is used for gripping the cartridge and for holding the hair.

En effet, conformément à l'invention, la cartouche de chauffage est associée à une coquille en forme de secteur cylindrique munie d'une ouver­ture s'étendant sur toute sa longueur et montée pivotante autour d'un axe orthogonal à l'axe lon­gitudinal de la cartouche sur une pièce de support ménagée à une extrémité de celle-ci, ladite co­quille pouvant prendre deux positions, respective­ment une position ouverte pour laquelle la coquille est écartée de la cartouche et constitue un organe de préhension permettant la manipulation de celle-ci et une position fermée de maintien des cheveux pour laquelle la coquille est refermée sur le support tubulaire, après introduction de la cartouche, en coiffant la mèche enroulée sur ledit support.Indeed, according to the invention, the heating cartridge is associated with a shell in the form of a cylindrical sector provided with an opening extending over its entire length and pivotally mounted around an axis orthogonal to the longitudinal axis of the cartridge on a support piece provided at one end of the latter, said shell possibly taking two positions, respectively an open position for which the shell is spaced from the cartridge and constitutes a gripping member allowing the manipulation thereof; and a closed position for maintaining hair for which the shell is closed on the tubular support, after introduction of the cartridge, by styling the lock wound on said support.

Selon une autre caractéristique parti­culièrement avantageuse, la coquille est consti­tuée par une paroi pleine recouvrant la plus grande partie du bigoudi et de la mêche enroulée, sauf la racine, de façon à concentrer sur les che­veux la chaleur émise par la cartouche. De préfé­rence, la face interne de la coquille est recouverte d'une surface réfléchissante pur aug­menter la capacité de concentration de la chaleur.According to another particularly advantageous characteristic, the shell consists of a solid wall covering most of the curler and of the coiled wick, except the root, so as to concentrate on the hair the heat emitted by the cartridge. Preferably, the internal face of the shell is covered with a reflective surface to increase the capacity for concentrating heat.

La cartouche amovible de chauffage peut être réalisée de toute façon permettant l'accumulation de la chaleur, mais il est parti­culièrement avantageux d'utiliser à cet effet un produit susceptible d'accumuler des calories par chauffage préalable et de les restituer ensuite aux cheveux enroulés, la cartouche étant consti­tuée, à cet effet, d'un tube cylindrique limitant un espace axial interne fermé de façon étanche à ses deux extrémités et renfermant le produit de chauffage.The removable heating cartridge can be produced anyway allowing heat to accumulate, but it is particularly advantageous to use for this purpose a product capable of accumulating calories by prior heating and then returning them to the coiled hair, the cartridge being made up, for this purpose, of a cylindrical tube limiting an internal axial space closed in a sealed manner at its two ends and enclosing the heating product.

De la sorte, le support tubulaire peut être constitué par une paroi pleine éventuellement percée d'orifices, dont la face externe a une for­me adaptée à l'enroulement des cheveux et à l'intérieur de laquelle est ménagé un conduit axial à parois lisses de diamètre sensiblement égal, au jeu près, à celui de la cartouche amovi­ble de façon que la chaleur soit transmise unifor­mément sur toute la surface de l'alésage.In this way, the tubular support can be constituted by a solid wall possibly pierced with orifices, the external face of which has a shape suitable for winding the hair and inside which an axial duct with smooth walls is formed. diameter substantially equal, apart from play, to that of the removable cartridge so that the heat is transmitted uniformly over the entire surface of the bore.

De préférence, le produit de chauffage est porté par chauffage préalable au-dessus de sa température de fusion et se solidifie, après enfi­lement de la cartouche dans le support, en libé­rant sa chaleur latente de fusion.Preferably, the heating product is brought by prior heating above its melting temperature and solidifies, after threading the cartridge into the support, releasing its latent heat of fusion.

Jusqu'a présent, un tel système de chauffage avait été prévu pour le séchage des che­veux (DE-A-2551379), c'est-à-dire avec des bigou­dis utilisés pour la mise en plis et ayant, par conséquent, un diamètre relativement important. La cartouche de chauffage pouvait donc contenir une quantité suffisante de produit pour dégager la chaleur nécessaire au chauffage des cheveux.Until now, such a heating system had been provided for drying the hair (DE-A-2551379), that is to say with curlers used for styling and therefore having a diameter relatively large. The heating cartridge could therefore contain a sufficient quantity of product to give off the heat necessary for heating the hair.

Mais selon l'une des caractéristiques particulièrement avantageuses de l'invention, la cartouche de chauffage, associée à une coquille pleine de concentration de la chaleur sur les che­veux, est utilisée essentiellement pour la réali­sation d'ondulations permanentes. Dans ce cas, le chauffage doit se poursuivre pendant un temps as­sez long et le bigoudi doit être de plus petite taille. La cartouche de chauffage doit donc avoir elle-même un diamètre très réduit, par exemple de l'ordre de 5 à 7 mm, et comme il faut lui donner une rigidité suffisante, le produit de chauffage ne peut occuper qu'un espace très réduit. On au­rait donc dû normalement utiliser un autre mode de chauffage pour un bigoudi de ce type, par exemple en réalisant la cartouche sous la forme d'une tige pleine en une matière permettant d'accumuler la chaleur. Mais alors le chauffage serait de faible durée.But according to one of the particularly advantageous features of the invention, the heating cartridge, associated with a shell full of heat concentration on the hair, is used essentially for the production of permanent waves. In this case, the heating must continue for a fairly long time and the curler must be smaller. The heating cartridge must therefore have a very small diameter itself, for example of the order of 5 to 7 mm, and since it must be given sufficient rigidity, the heating product can only occupy a very small space . We should therefore normally have used another heating method for a hair curler of this type, for example by making the cartridge in the form of a solid rod of a material allowing heat to accumulate. But then the heating would be of short duration.

Or, de façon surprenante, il a été pos­sible de trouver des produits ayant d'une part la température de fusion requise, c'est-à-dire com­prise entre 50 et 120°C de façon à ne par risquer de brûler les cheveux et d'autre part une chaleur latente de fusion d'au moins 600 J/cm³ permettant de dégager la quantité de chaleur voulue pendant le temps nécessaire, compte-tenu du volume de pro­duit que l'on peut placer dans la cartouche. Un tel produit de chauffage peut être constitué, par exemple, par un sel fondu tel qu'un hydroxyde de baryum ou de stromtium.However, surprisingly, it was possible to find products having on the one hand the required melting temperature, that is to say between 50 and 120 ° C so as not to risk to burn the hair and on the other hand a latent heat of fusion of at least 600 J / cm³ allowing to release the desired amount of heat for the necessary time, taking into account the volume of product that can be placed in the cartridge. Such a heating product can consist, for example, of a molten salt such as barium hydroxide or stromtium.

Mais l'invention sera mieux comprise par la description suivante d'un mode de réalisation particulier, donné à titre d'exemple et représenté sur les dessns annexés.

  • La Figure 1 est une vue en coupe axiale du support tubulaire.
  • La Figure 2 est une vue de côté, avec coupe partielle, de la cartouche amovible.
  • La Figure 3 est une vue de côté, avec coupe partielle, de la coquille.
  • La Figure 4 est une vue en coupe trans­versale, du support tubulaire.
  • La Figure 5 est une vue en coupe transversale de la cartouche de la coquille.
  • La Figure 6 représente schématiquement l'introduction de la cartouche dans le bigoudi en­roulé.
  • La Figure 7 représente schématiquement la pose du manchon après introduciton de la car­touche.
  • La Figure 8 est une vue en coupe trans­versale de l'ensemble du bigoudi.
However, the invention will be better understood from the following description of a particular embodiment, given by way of example and shown in the accompanying drawings.
  • Figure 1 is an axial sectional view of the tubular support.
  • Figure 2 is a side view, partly in section, of the removable cartridge.
  • Figure 3 is a side view, partly in section, of the shell.
  • Figure 4 is a cross-sectional view of the tubular support.
  • Figure 5 is a cross-sectional view of the shell cartridge.
  • Figure 6 schematically shows the introduction of the cartridge into the coiled curler.
  • Figure 7 schematically shows the installation of the sleeve after introduction of the cartridge.
  • Figure 8 is a cross-sectional view of the entire curler.

Dans l'exemple représenté sur les Figu­res, le bigoudi se compose donc d'un support tubu­laire 1, d'une cartouche de chauffage amovible 2 et d'une coquille 3 représentés respectivement sur les Figures 1, 2 et 3.In the example shown in the Figures, the curler therefore consists of a tubular support 1, a removable heating cartridge 2 and a shell 3 shown respectively in Figures 1, 2 and 3.

Le support 1 est constitué d';un tube al­longé en matière plastique dont la face extérieure 11 a avantageusement une forme incurvée, plus min­ce dans sa partie centrale qu'aux extrémités de façon à faciliter l'enroulement et le maintien des cheveux. Cette forme est d'ailleurs bien connue et l'un des avantages de l'invention réside dans le fait qu'il est possible de l'appliquer à des bi­goudis de forme et de dimension normales alors que, jusqu'à présent, les bigoudis à chauffage par l'intérieur étaient plus gros et utilisables seu­lement pour la mise en plis.The support 1 consists of an elongated plastic tube, the outer face 11 of which advantageously has a curved shape, thinner in its central part than at the ends so as to facilitate winding and holding the hair. This shape is moreover well known and one of the advantages of the invention lies in the fact that it is possible to apply it to curlers of normal shape and size whereas, until now, curlers for interior heating were larger and usable only for styling.

Le bigoudi est, de préférence, constitué d'une paroi pleine 12 à l'intérieur de laquelle est ménagé un conduit axial 13 limité par une pa­roi lisse 14. Des orifices transversaux 15 répar­tis le long du bigoudi permettent de mettre en communication l'intérieur et l'extérieur de ce dernier.The curler preferably consists of a solid wall 12 inside which is formed an axial duct 13 limited by a smooth wall 14. Transverse orifices 15 distributed along the curler allow the interior to be placed in communication and the outside of the latter.

La cartouche amovible 2 représentée sur la Figure 2 est constituée d'un tube creux en ma­tière plastique 21, fermé à ses deux ses extrémi­tés de façon à limiter un espace interne étanche 22 qui est rempli d'un produit de chauffage 23. A l'une de ses extrémités, le tube 21 est fixé sur une pièce de support 24 qui peut avoir la forme d'une plaque de section circulaire.The removable cartridge 2 shown in FIG. 2 consists of a hollow plastic tube 21, closed at both ends so as to limit a sealed internal space 22 which is filled with a heating product 23. At the one of its ends, the tube 21 is fixed to a support piece 24 which may have the form of a plate of circular section.

Deux tétons 25 diamétralement opposés sont fixés de part et d'autre de la plaque 24.Two diametrically opposed pins 25 are fixed on either side of the plate 24.

La cartouche 2 est associée à une co­quille 3 constituée d'une paroi lisse 31 en matiè­re plastique, en forme de secteur cylindrique dont la face interne lisse 33 a un diamètre D₂ supé­rieur au diamètre maximal D₁ du bigoudi et qui est munie, sur toute sa longueur, d'une ouverture 30 de largeur 1 un peu inférieure au diamètre de la mêche enroulée.The cartridge 2 is associated with a shell 3 consisting of a smooth wall 31 of plastic material, in the form of a cylindrical sector whose smooth internal face 33 has a diameter D₂ greater than the maximum diameter D₁ of the curler and which is provided, on all of its length, opening 30 of width 1 a little less than the diameter of the coiled wick.

De plus, la coquille 3 est munie à l'une de ses extrémités de deux orifices diamétralement opposés 32 dans lesquels peuvent s'engager les tétons 25 de la pièce de support 24 comme on l'a représenté en coupe transversale sur la Figure 5.In addition, the shell 3 is provided at one of its ends with two diametrically opposite orifices 32 in which the pins 25 of the support piece 24 can engage, as shown in cross section in FIG. 5.

Les tétons 25 forment ainsi deux touril­lons alignés définissant un axe de rotation 20 au­tour duquel la coquille 3 peut tourner. La coquille 3 peut donc prendre deux positions, res­pectivement une position ouverte pour laquelle la coquille 3 est écratée de la cartouche 2 et une position fermée pour laquelle la coquille 3 recou­vre la cartouche.The pins 25 thus form two aligned pins defining an axis of rotation 20 around which the shell 3 can rotate. The shell 3 can therefore take two positions, respectively an open position for which the shell 3 is crushed by the cartridge 2 and a closed position for which the shell 3 covers the cartridge.

L'opération peut se dérouler de la façon représentée sur les Figures 6 et 7.The operation can take place as shown in Figures 6 and 7.

Les cheveux 4 sont enroulés par mèches sur les supports tubulaires 1 qui, comme on l'a indiqué, peuvent avoir la forme et les dimensions habituelles des bigoudis classiques et comporter sur leur face externe 11 des moyens d'accrochage des cheveux tels que , par exemple, de petites protubérances 16.The hair 4 is wound in strands on the tubular supports 1 which, as indicated, can have the usual shape and dimensions of conventional curlers and have on their external face 11 means for hanging the hair such that, by example, small protrusions 16.

On réalise ainsi l'enroulement des che­veux sur tous les bigoudis. Pendant ce temps, les cartouches amovibles sont chauffées par exemple dans un four, au bain--marie, sur un appareil élec­trique ou de toute façon adéquate. Pendant le chauffage, la coquille 3 est ouverte de façon à se placer dans le prolongement de la cartouche 2 com­me on l'a représenté sur la Figure 6.This is how the hair is rolled up on all the curlers. During this time, the removable cartridges are heated for example in an oven, in a water bath, on an electric appliance or in any suitable way. During heating, the shell 3 is opened so as to be placed in the extension of the cartridge 2 as shown in FIG. 6.

Dans cette position, la coquille 3 constitue un organe de préhension d'assez grande dimension pour être saisi facilement par l'opéra­ teur et ne risquant pas d'être chauffé, même par conduction.In this position, the shell 3 constitutes a gripping member of sufficiently large dimension to be easily grasped by the opera tor and not likely to be heated, even by conduction.

On peut ainsi introduire l'une après l'autre les cartouches préalablement chauffées dans les conduits 13 de chacun des supports 1 puis, comme on l'a représenté sur la Figure 7, faire pivoter la coquille 3 autour de l'axe 20 pour lui faire coiffer le bigoudi et la mèche en­roulée.One can thus introduce one after the other the cartridges previously heated in the conduits 13 of each of the supports 1 then, as shown in Figure 7, rotate the shell 3 around the axis 20 for it style the curler and the curled lock.

La cartouche 2 étant ainsi introduite dans le conduit 13 qui a sensiblement le même dia­mètre, au jeu de coulissement près, la chaleur est transmise de la cartouche 2 au support tubulaire et au cheveu par rayonnement mais aussi par conduction puisque, en pratique, la cartouche est au contact du bigoudi sur toute sa longueur. Cependant, on a constaté que le mode de transmis­sion par rayonnement peut être suffisant et, selon les cas, on pourrait aussi utiliser des bigoudis dans lesquels la cartouche serait maintenue à dis­tance de la paroi par des organes de centrage tels que, par exemple, deux ou trois bagues espacées.The cartridge 2 thus being introduced into the conduit 13 which has substantially the same diameter, apart from the sliding clearance, the heat is transmitted from the cartridge 2 to the tubular support and to the hair by radiation but also by conduction since, in practice, the cartridge is in contact with the curler over its entire length. However, it has been found that the mode of transmission by radiation may be sufficient and, depending on the case, it is also possible to use curlers in which the cartridge is kept at a distance from the wall by centering members such as, for example, two or three spaced rings.

La coquille 3 est constituée en une ma­tière rigide déformable élastiquement de façon que, lorsqu'on la referme sur la mèche 4 enroulée sur le bigoudi, la largeur 1 de la fente 30 aug­mente légèrement. La coquille se resserre ensuite sur la mèche qu'elle entoure pratiquement jusqu'à la racine en exerçant une légère pression. Du fait qu'elle est constituée d'une paroi pleine et lisse 31, la coquille 3 permet donc, selon l'un des avantages essentiels de l'invention, de concentrer sur la mèche enroulée la chaleur rayonnée par la cartouche 2, le chauffage étant ainsi réalisé à la fois de l'intérieur et de l'extérieur.The shell 3 is made of a rigid material which is elastically deformable so that, when it is closed on the wick 4 wound on the curler, the width 1 of the slot 30 increases slightly. The shell then tightens on the wick which it surrounds practically to the root by exerting a slight pressure. Because it consists of a full and smooth wall 31, the shell 3 therefore makes it possible, according to one of the essential advantages of the invention, to concentrate on the coiled wick the heat radiated by the cartridge 2, the heating thus being produced both from the inside and from the outside.

De plus l'évaporation du liquide de per­manente est limitée et les cheveux restent humec­tés plus longtemps.In addition the evaporation of the perm liquid is limited and the hair remains moistened longer.

Pour augmenter l'effet de concentration de la chaleur, dans un mode de réalisation préfé­rentiel, la face interne 32 de la coquille 3 est entièrement recouverte d'une surface réfléchissan­te 35 qui peut être constituée d'un revêtement brillant telle qu'une feuille d'aluminium simple­ment collée sur la face interne 2 dans un mode de realisation particulièrement simple et peu oné­reux.To increase the effect of heat concentration, in a preferred embodiment, the internal face 32 of the shell 3 is entirely covered with a reflective surface 35 which may consist of a glossy coating such as a sheet of foil. aluminum simply bonded to the internal face 2 in a particularly simple and inexpensive embodiment.

On remarquera que l'élasticité de la pa­roi 31 constituant la coquille 3 facilite la mon­tage amovible de la coquille 3 sur la pièce de support 24 par engagement des tétons 25 dans les orifices 32.It will be noted that the elasticity of the wall 31 constituting the shell 3 facilitates the removable mounting of the shell 3 on the support part 24 by engagement of the pins 25 in the orifices 32.

D'autre part, la pièce de support 24 est constituée d'une plaque circulaire de même diamè­tre que celui de la face interne 33 de la coquille qui s'applique donc exactement sur la paroi laté­rale circulaire de la plaque 24. Celle-ci a une épaisseur e suffisante pour qu'il en résulte un léger blocage de la coquille en position ouverte ou fermée dans l'alignement de la cartouche, l'élasticité de la paroi 31 permettant aux bords latéraux 34 de s'écarter pendant la rotation de la coquille.On the other hand, the support piece 24 consists of a circular plate of the same diameter as that of the internal face 33 of the shell which therefore applies exactly to the circular lateral wall of the plate 24. The latter has a thickness e sufficient to result in a slight blocking of the shell in the open or closed position in alignment with the cartridge, the elasticity of the wall 31 allowing the lateral edges 34 to move apart during the rotation of the shell.

Comme on l'a indiqué, l'invention peut s'appliquer à des bigoudis de formes et de dimen­sions classiques dont le diamètre peut aller par exemple de 6,5 à 12 mm. Or, du fait qu'il faut en déduire l'épaisseur du support tubulaire l et cel­le de la paroi 21 de la cartouche 2, la chambre interne 23 dans laquelle est placé le produit de chauffage est de dimension particulièrement rédui­te. On aurait donc dû craindre de ne pas pouvoir obtenir une température et un temps de chauffage suffisants avec une quantité aussi faible de pro­duit susceptible d'accumuler la chaleur. Cependant, on a réussi à trouver des produits su­sceptibles d'accumuler une quantité de chaleur suffisante sous un aussi faible volume. De plus, du fait que l'enroulement des chaveux est réalisé à froid et que l'on ne touche pas directement la cartouche pour l'introduction dans le bigoudi, on peut porter le produit de chauffage à une tempéra­ture un peu plus élevée que dans le cas des bigou­dis classiques à chauffage interne.As indicated, the invention can be applied to curlers of conventional shapes and dimensions, the diameter of which can range, for example, from 6.5 to 12 mm. Now, because it is necessary to deduce therefrom the thickness of the tubular support l and that of the wall 21 of the cartridge 2, the internal chamber 23 in which the product of heating is particularly small. It should therefore have been feared that it would not be possible to obtain a sufficient temperature and heating time with such a small quantity of product capable of accumulating heat. However, we have managed to find products capable of accumulating a sufficient amount of heat in such a small volume. In addition, since the winding of the hairs is carried out cold and that the cartridge is not directly touched for introduction into the curler, the heating product can be brought to a temperature slightly higher than in the case of classic curlers with internal heating.

On utilisera donc, de préférence, un produit dont la température de fusion est de l'ordre de la température maximale que l'on peut donner à la cartouche compte-tenu de la perte de chaleur entre cette dernière et la face extérieure du bigoudi et de la température que peuvent sup­porter le cheveu et la tête. On choisira par exem­ple un produit dont la température de fusion sera comprise entre 50°C et 120°C.We will therefore preferably use a product whose melting temperature is of the order of the maximum temperature that can be given to the cartridge, taking into account the heat loss between the latter and the outside face of the curler and the temperature that the hair and the head can withstand. We will choose for example a product whose melting temperature will be between 50 ° C and 120 ° C.

Le produit de chauffage contenu dans l'espace 23 est donc fondu lors du chauffage préa­lable de la cartouche et se solidifie après intro­duction dans le bigoudi en cédant aux cheveux sa chaleur latente de fusion. Il en résulte un mode de chauffage particulièrement efficace pour un faible volume. De plus, la quantité de chaleur ainsi dégagée est sensiblement constante et, en particulier, ne dépend pas du temps de chauffage préalable. On peut ainsi contrôler avec précision les conditions de chauffage et, par conséquent l'efficacité du traitement d'ondulation.The heating product contained in the space 23 is therefore melted during the prior heating of the cartridge and solidifies after introduction into the curler, yielding to the hair its latent heat of fusion. This results in a particularly efficient heating mode for a small volume. In addition, the amount of heat thus released is substantially constant and, in particular, does not depend on the prior heating time. It is thus possible to precisely control the heating conditions and, consequently, the efficiency of the ripple treatment.

En outre, il a été possible de trouver des produits ayant une chaleur latente de fusion d'au moins 600 J/cm³ qui permet d'obtenir la tem­pérature et le temps de chauffage voulus malgré la faible quantité de produit placée à l'intérieur de l'espace 23 du tube de chauffage. A titre d'exemple, on peut utiliser comme produit de chauffage un hydroxyde de Baryum dont la tempéra­ture de fusion est de 80°C et la chaleur latente de 600 J/cm³ ou bien un hydroxyde de Strontium dont la température de fusion est de 88°C et la chaleur latente de 650 J/cm³.In addition, it has been possible to find products having a latent heat of fusion of at least 600 J / cm³ which makes it possible to obtain the desired temperature and heating time despite the small quantity of product placed inside the space 23 of the heating tube. For example, one can use as heating product a barium hydroxide whose melting temperature is 80 ° C and the latent heat of 600 J / cm³ or a Strontium hydroxide whose melting temperature is 88 ° C and the latent heat of 650 J / cm³.

Le produite de chauffage sera générale­ment constitué par un sel fondu mais d'autres pro­duits pourraient être utilisés, dans la mesure où l'on obtiendrait les caractéristiques thermiques voulues.The heating product will generally consist of a molten salt, but other products could be used, as long as the desired thermal characteristics are obtained.

Cependant, il faut aussi que le produit soit compatible avec la matière dont est constitué le tube 21 constituant la cartouche 2 et qui doit d'une part ne pas réagir avec le produit car un dégagement gazeux pourrait produire une explosion et, d'autre part, avoir une résistance mécanique suffisante pour que la paroi 21 ait une épaisseur réduite et résiste cependant à la pression résul­tant du changement d'état. Il faut aussi que la cartouche ait un coefficient de dilatation relati­vement réduit de façon à s'enfiler dans le conduit axial 13 avec un simple jeu nécessaire au coulis­sement.However, it is also necessary that the product is compatible with the material of which the tube 21 constituting the cartridge 2 is made and which must on the one hand not react with the product because a gaseous release could produce an explosion and, on the other hand , have sufficient mechanical strength for the wall 21 to have a reduced thickness and nevertheless withstand the pressure resulting from the change of state. It is also necessary that the cartridge has a relatively reduced coefficient of expansion so as to slip into the axial duct 13 with a simple clearance necessary for sliding.

Bien entendu le mode de réalisation qui vient d'être décrit n'a été donné qu'à titre d'exemple et pourrait faire l'objet de variantes sans s'écarter du cadre de protection défini par les revendications.Of course, the embodiment which has just been described has been given by way of example and could be subject to variants without departing from the protective framework defined by the claims.

En particulier, grâce à la faible dimen­sion de la cartouche amovible, il est possible d'adapter l'invention à des bigoudis de toutes formes. De même, la forme de la coquille, qui n'est pas obligatoirement circulaire, et le mode de montage sur la cartouche pourraient être modi­fiés.In particular, thanks to the small size of the removable cartridge, it is possible to adapt the invention to curlers of all shapes. Similarly, the shape of the shell, which is not necessarily circular, and the method of mounting on the cartridge could be modified.

Les signes de référence insérés après les caractéristiques techniques mentionnées dans les revendications, ont pour seul but de faciliter la compréhension de ces dernières, et n'en limi­tent aucunement la portée.The reference signs inserted after the technical characteristics mentioned in the claims, have the sole purpose of facilitating the understanding of the latter, and in no way limit their scope.

Claims (12)

1. Bigoudi pour la réalisation d'ondulations permanentes, comprenant un support tubulaire allongé (1) sur lequel est enroulée une mèche de cheveux (4) et limitant un espace creux (13) et une cartouche de chauffage (2) en forme de tube cylindrique, ladite cartouche étant chauffée séparément puis introduites dans l'espace creux (13) du support tubulaire (1) après enroulement des cheveux (4), caractérisé par le fait que la cartouche de chauffage (2) est associée à une co­quille (3) en forme de secteur cylindrique munie d'une ouverture (30) s'étendant sur toute sa lon­gueur et montée pivotante autour d'un axe (20) or­thogonal à l'axe longitudinal (10) de la cartouche, sur une pièce de support (24) ménagée à une extrémité de celle-ci, ladite coquille pouvant prendre deux positions, respectivement une posi­tion ouverte pour laquelle la coquille (3) est écartée de la cartouche (2) et constitue un organe de préhension et une position fermée de maintien des cheveux pour laquelle la coquille (3) est re­fermée sur le support tubulaire (1), après intro­duction de la cartouche (2), en coiffant la mèche (4) enroulée sur ledit support (1).1. Curler for producing permanent waves, comprising an elongated tubular support (1) on which is wound a lock of hair (4) and limiting a hollow space (13) and a heating cartridge (2) in the form of a tube cylindrical, said cartridge being heated separately and then introduced into the hollow space (13) of the tubular support (1) after winding the hair (4), characterized in that the heating cartridge (2) is associated with a shell (3 ) in the form of a cylindrical sector provided with an opening (30) extending over its entire length and pivotally mounted around an axis (20) orthogonal to the longitudinal axis (10) of the cartridge, on a support piece (24) formed at one end thereof, said shell being able to take two positions, respectively an open position for which the shell (3) is spaced from the cartridge (2) and constitutes a gripping member and a closed holding position hair for which the shell (3) is closed on the tubular support (1), after introduction of the cartridge (2), by covering the wick (4) wound on said support (1). 2. Bigoudi selon la revendication 1, ca­ractérisé par le fait que la coquille (3) est constituée par une paroi pleine (3) recouvrant toute la partie du bigoudi (1) tournée vers l'extérieur de façon à concentrer sur la mèche en­roulée (4) la chaleur émise par la cartouche 2).2. Curler according to claim 1, characterized in that the shell (3) consists of a solid wall (3) covering the entire part of the curler (1) facing outwards so as to concentrate on the coiled wick ( 4) the heat emitted by the cartridge 2). 3. Bigoudi selon l'une des revendica­tions 1 et 2, caractérisé par le fait que la pièce de support (24) est constituée par une plaque cir­culaire de diamètre sensiblement égal au diamètre interne de la coquille (2) et sur laquelle sont fixés deux tétons (25) diamétralement opposés for­mant deux tourillons alignés qui s'engagent dans des orifices (32) de la coquille (3) de façon à constituer un axe de rotation de cette dernière.3. Curler according to one of claims 1 and 2, characterized in that the support part (24) consists of a circular plate of diameter substantially equal to the diameter internal of the shell (2) and on which are fixed two diametrically opposed studs (25) forming two aligned pins which engage in orifices (32) of the shell (3) so as to constitute an axis of rotation of the latter . 4. Bigoudi selon la revendication 3, ca­ractérisé par le fait que la coquille (3) est constituée d'une paroi rigide (31) déformable élastiquement de façon à permettre d'une part l'engagement des tétons (25) dans les orifices (32) et d'autre part la fermeture de la coquille (3) sur les cheveux enroulés avec léger serrage de ces derniers aussi près que possible de la racine.4. Curler according to claim 3, characterized in that the shell (3) consists of a rigid wall (31) elastically deformable so as to allow on the one hand the engagement of the pins (25) in the orifices ( 32) and on the other hand the closure of the shell (3) on the coiled hair with slight tightening of the latter as close as possible to the root. 5. Bigoudi selon la revendication 2, ca­ractérisé par le fait que la face interne (33) de la coquille (3) est recouverte d'une surface ré­fléchissante (35).5. Curler according to claim 2, characterized in that the internal face (33) of the shell (3) is covered with a reflecting surface (35). 6. Bigoudi selon l'une des revendica­tions précédentes, caractérisé par le fait que la cartouche de chauffage (2) est constituée par un tube cylindrique limitant un espace axial interne (22) fermé de façon étanche à ses deux extrémités et renfermant un produit de chauffage (23) suscep­tible d'accumuler les calories par chauffage préa­lable et de les restituer aux cheveux enroulés sur le support tubulaire (1) après enfilement de la cartouche (2).6. Curler according to one of the preceding claims, characterized in that the heating cartridge (2) is constituted by a cylindrical tube limiting an internal axial space (22) closed in leaktight manner at its two ends and containing a product of heating (23) capable of accumulating calories by prior heating and returning them to the hair wound on the tubular support (1) after threading the cartridge (2). 7. Bigoudi selon la revendication 6, ca­ractérisé par le fait que le support tubulaire (1) comprend une paroi pleine (12) dont la face exter­ne (11) a une forme adaptée à l'enroulement des cheveux et à l'intérieur de laquelle est ménagé un alésage axial (13) à paroi lisse, de diamètre sen­siblement égal, au jeu près, à celui de la cartou­ che amovible (2) de façon que la chaleur soit transmise uniformément sur toute la surface de l'alésage (13).7. Curler according to claim 6, characterized in that the tubular support (1) comprises a solid wall (12) whose external face (11) has a shape suitable for winding the hair and inside which an axial bore (13) is provided with a smooth wall, of diameter substantially equal, apart from play, to that of the cartridge removable che (2) so that the heat is transmitted uniformly over the entire surface of the bore (13). 8. Bigoudi selon la revendication 7, ca­ractérisé par le fait que la paroi pleine (12) du support tubulaire (1) est percée d'orifices (15).8. Curler according to claim 7, characterized in that the solid wall (12) of the tubular support (1) is pierced with orifices (15). 9. Bigoudi selon la revendication 6, ca­ractérisé par le fait que le produit de chauffage (23) est porté par chauffage préalable au-dessus de sa température de fusion et se solidifie après enfilement de la cartouche (2) dans le support (1), en libérant sa chaleur latente de fusion.9. Curler according to claim 6, characterized in that the heating product (23) is carried by prior heating above its melting temperature and solidifies after threading of the cartridge (2) in the support (1) , releasing its latent heat of fusion. 10. Bigoudi selon la revendication 9, caractérisé par le fait que la produit de chauffa­ge (23) a une température de fusion comprise entre 50°C et 120°C.10. Curler according to claim 9, characterized in that the heating product (23) has a melting temperature between 50 ° C and 120 ° C. 11. Bigoudi selon la revendication 9, caractérisé par le fait que la produit de chauffa­ge (23) a une chaleur latente de fusion d'au moins 600 J/cm³.11. Curler according to claim 9, characterized in that the heating product (23) has a latent heat of fusion of at least 600 J / cm³. 12. Bigoudi selon la revendication 9, caractérisé par le fait que la produit de chauffa­ge (23) est une sel fondu tel qu'un hydroxyde de baryum ou de strontium.12. Curler according to claim 9, characterized in that the heating product (23) is a molten salt such as a barium or strontium hydroxide.
EP89400108A 1988-01-12 1989-01-12 Hair roller for permanent waving Expired - Lifetime EP0324695B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89400108T ATE87186T1 (en) 1988-01-12 1989-01-12 HAIR ROLLER FOR PERMS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8800279A FR2625656B1 (en) 1988-01-12 1988-01-12 BIGOUDI FOR PERMANENT Ripples
FR8800279 1988-01-12

Publications (2)

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EP0324695A1 true EP0324695A1 (en) 1989-07-19
EP0324695B1 EP0324695B1 (en) 1993-03-24

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EP89400108A Expired - Lifetime EP0324695B1 (en) 1988-01-12 1989-01-12 Hair roller for permanent waving

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EP (1) EP0324695B1 (en)
AT (1) ATE87186T1 (en)
DE (1) DE68905490T2 (en)
FR (1) FR2625656B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2763485A1 (en) * 1997-05-26 1998-11-27 Michel Lyon Hair roller retaining clip

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FR1414774A (en) * 1963-12-18 1965-10-22 Calor App Electro Domestiques Device for styling the hair and for similar uses
US3250895A (en) * 1964-08-21 1966-05-10 Songrand Corp Heating unit for hair curling
US3476121A (en) * 1967-06-06 1969-11-04 Norman G Foley Electric hair dryer
DE1929812A1 (en) * 1969-06-12 1970-12-17 Gold Zack Werke Ag Hair curlers, as well as methods of heating hair curlers
DE2551379A1 (en) * 1974-11-21 1976-05-26 Winfried Josef Werding Heat storage using latent heat storage mass - devices control volume or pressure changes within storage and circulate heat

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US3759271A (en) * 1972-06-12 1973-09-18 R Caruso Hair curler
GB2090130B (en) * 1980-12-30 1985-09-04 Thomas Cornelia Hair setting rollers

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US2109632A (en) * 1936-11-10 1938-03-01 Athens Pierre Hair waving device
FR1414774A (en) * 1963-12-18 1965-10-22 Calor App Electro Domestiques Device for styling the hair and for similar uses
US3250895A (en) * 1964-08-21 1966-05-10 Songrand Corp Heating unit for hair curling
US3476121A (en) * 1967-06-06 1969-11-04 Norman G Foley Electric hair dryer
DE1929812A1 (en) * 1969-06-12 1970-12-17 Gold Zack Werke Ag Hair curlers, as well as methods of heating hair curlers
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FR2763485A1 (en) * 1997-05-26 1998-11-27 Michel Lyon Hair roller retaining clip

Also Published As

Publication number Publication date
ATE87186T1 (en) 1993-04-15
FR2625656A1 (en) 1989-07-13
DE68905490T2 (en) 1993-09-16
FR2625656B1 (en) 1992-01-10
DE68905490D1 (en) 1993-04-29
EP0324695B1 (en) 1993-03-24

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