EP1742552B1 - Cosmetic tweezers - Google Patents

Cosmetic tweezers Download PDF

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Publication number
EP1742552B1
EP1742552B1 EP05735718.8A EP05735718A EP1742552B1 EP 1742552 B1 EP1742552 B1 EP 1742552B1 EP 05735718 A EP05735718 A EP 05735718A EP 1742552 B1 EP1742552 B1 EP 1742552B1
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EP
European Patent Office
Prior art keywords
branches
tweezers
tweezers according
width
maximum width
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EP05735718.8A
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German (de)
French (fr)
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EP1742552A1 (en
Inventor
Nicole Sgobero
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Manufactures dOutils Dumont SA
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Manufactures dOutils Dumont SA
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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
    • A45D26/00—Hair-singeing apparatus; Apparatus for removing superfluous hair, e.g. tweezers
    • A45D26/0066—Tweezers

Definitions

  • the present invention relates to forceps for cosmetic use.
  • the present invention relates in particular to tweezers for cosmetic use.
  • the tweezers are small forceps formed of a generally flat end which extends into two branches acting like a spring and which make it possible to seize very small objects or to carry out work of great precison. Some tweezers are intended for cosmetic use. They are generally used for hair removal, their small size allowing in particular to grasp and tear the hair accurately.
  • the tweezers of the prior art are generally thin and long Their branches are therefore narrow and elongated This commonly accepted form, however, has several disadvantages. Indeed, the handling of the tweezers of the prior art can prove difficult, especially for people with reduced dexterity such as the elderly The tweezers of the prior art also have a tendency to roll involuntarily between the fingers of the user , for example when the latter presses too strongly or crookedly on the branches.
  • the document GB 29221 describes a pair of leg-shaped tweezers, with the back of the thighs resting on the palm of the hand, and the extremities grasped between thumb and forefinger.
  • the robustness of the tweezers is improved, but their relatively large size makes them difficult to grip for people with reduced dexterity.
  • An object of the present invention is to provide tweezers for cosmetic use does not have the disadvantages of tweezers for cosmetic use of the prior art.
  • tweezers of the invention comprise a preferably metal frame 1 comprising an end 2, preferably narrow and for example flat, for accurately grasping small objects.
  • an end 2 preferably narrow and for example flat
  • the shape of the end 2 is preferably adapted to the intended use of the tweezers. It can for example be pointed, angled, etc.
  • the tweezers of the invention are intended for cosmetic use.
  • the end 2 is thus preferably adapted to this kind of use, in particular to the gripping and tearing of human hair.
  • the maximum width of the branches 3 is for example at least equal to half, preferably both third, of the average width of the thumb resting area of an adult of average body size when the tweezers are actuated so as to provide the frame 1 with flexural and torsional stiffness along the longitudinal axis and thus offer optimum comfort and precision of use.
  • the maximum width of the branches3 is at least equal to the average width of the thumb support area of an adult of average body size when the tweezers are actuated.
  • the maximum length of the branches3 is preferably less than the average length of the thumb of an adult of average body size.
  • the average width of the bearing zone of the thumb of an adult of average body size when operating the tweezers has been evaluated at about 20mm while the average length of the thumb is around 55mm, males and females combined.
  • the maximum width of the branches 3 is thus preferably greater than 20 mm, while their maximum length is preferably less than 55 mm.
  • the maximum width of the branches3 is at least equal to one third of their maximum length.
  • the maximum width of the branches 3 is at least equal to half of their maximum length.
  • the branches 3 widen from the end 2 to less than half their length and then retain their maximum width to the connecting zone 32 connecting the two branches 3 and being at the other end.
  • the outer dimensions of the widest part of the branches 3, which thus relaxes at least half their length, are thus substantially those of a square.
  • the end 2 is however preferably narrow, similar to that of tweezers of the prior art, so as to allow the easy and isolated capture of very small objects such as for example human hair, etc.
  • the maximum width of the end 2 is thus preferably less than one-third of the maximum width of the branches 3. In a still preferred version, the maximum width of the end 2 is preferably less than one fifth of the maximum width of the branches3.
  • each branch 3 is interconnected by means of flexible blades 30 preferably formed in the widest part of the branches 3, acting in the manner of a spring against the closure of the tweezers 1.
  • each branch 3 comprises two blades 30, each blade 30 extending the corresponding blade 30 of the other branch 3.
  • the spring effect maintaining the open tweezers 1 is preferably provided mainly by the flexibility of the blades 30 themselves.
  • the flexibility of the blades 30 is for example determined and controlled by the formation of a recess 31 on each blade 30 decreasing locally the thickness of the latter.
  • the recesses 31 allow, in particular by the choice of their dimensions and of their symmetry, to determine with precision the degree of flexibility of each blade 30 as well as the zone and the direction in which the majority of the bending will take place during the use of the tweezers 1.
  • the recesses 31 are preferably located as far as possible from the end 2 in order to reduce as much as possible the angle formed between the branches 3 when the tweezers are closed and to guarantee an optimal transmission on the end 2 of the force exerted on branches 3 by the user.
  • the blades 30 of each limb 3 are preferably connected to the corresponding blades 30 of the other limb 3 by connecting regions 32 which are practically not deformed when the tweezers 1 are actuated, even if the bearing force on the limbs 3 is very high.
  • the bonding areas 32 are for example of the same material as the blades 30 but substantially wider than the latter, so that their rigidity is also substantially higher.
  • the rigidity of the connection zones 32 ensures in particular that the end 2 of the tweezers closes properly, avoiding any lateral offset between the branches 3.
  • connection zones 32 determine a certain spacing of the branches3 between them, which allows that, when the tweezers of the invention are open in the rest position, the opening angle between the branches 3 is relatively weak, or that the branches3 are substantially parallel.
  • the low angle of opening between the branches 3 when the end 2 is open thus provides the tweezers of the invention with optimum comfort of use and improved aesthetic appearance despite branches 3 relatively short.
  • the two blades 30 of the same branch 3 are preferably arranged on each side of the branch 3 so as to be as far apart as possible from each other. This arrangement allows an optimal control of the accuracy of the closure of the flat end 2 during the actuation of the tweezers 1.
  • the spacing of the blades 30 connecting the branches 3 between them makes it possible to prevent the latter from shifting. laterally with respect to each other during their closure.
  • blades 30 of each limb 3 can be selected during the design of the tweezers of the invention, for example to adapt these last for a particular use and / or to confer a specific resistance.
  • Branches 3 tweezers 1 of the invention can for example include one, two, three flexible blades or moreaccordons aesthetic appearance and / or desired operating comfort.
  • the armature 1 of the tweezers of the invention is preferably formed by electroerosion and then by folding a metal plate.
  • the two branches 3 are thus cut symmetrically and interconnected by the connecting zones 32. Once cut, the reinforcement is folded at the connection areas 32. The folding is performed with the greatest precision in order to ensure proper alignment of the branches3 and the desired spacing between them.
  • each branch 3 is for example manufactured separately and then fixed directly or through a connecting element by the end of its blades 30 to another branch 3.
  • the fixing is done for example by welding, gluing, etc..
  • Such an embodiment however has the disadvantage that it is more expensive, more fragile and generally less accurate.
  • the tweezers of the invention are preferably grasped by the two branches3 by a user, for example between the thumb and forefinger of the same hand.
  • the tweezers of the invention are preferably grasped with the thumb pointing upward while the index is bent against the lower branch.
  • seizure of the tweezers allows the user to exert a greater force on the end 2 than in the case of tweezers of the prior art which are generally actuated with the fingertips.
  • the user exerts pressure on the outer surfaces of the legs 3, preferably on an area between the recesses 31 and the flat end 2.
  • the flexible blades 30 then bend substantially in the area of the recess 31 while the rest branches 3 retain their original shape, which has the effect of closing the flat end 2, for example to grab a small object.
  • the tweezers 1 then open under the spring force of the blades 30 which resume their initial position.
  • the end 2 is off-center with respect to the branches 3 and is connected to the latter along an axis different from their longitudinal axis.
  • This off-center and off-axis position of the end 2 makes it possible to prevent the wide part of the frame 1 from interfering with the user's visibility when using the tweezers of the invention.
  • This position also allows a good hold of the wide part of the frame 1 in the palm of the hand of the user while ensuring optimal access to the end 2.
  • the skilled person will understand that other position are possible for the end 2. It can in particular be centered relative to the branches3 and / or connected to the latter along an axis parallel to their longitudinal axis.
  • the width of the branches 3 allows to offer the user a large support surface for the actuation of the tweezers against the spring force of the blades 30. Even a person with reduced dexterity is thus able to easily grasp the tweezers of the invention between two fingers to close them.
  • the width ofbranches3 prevents them from sliding between the fingers of the user and / or tweezers turn involuntarily when closed, even strongly or crooked.
  • the width of the branches3 also offers better stability of the armature 1 relative to the end 2.
  • the width of the armature 1, in particular the large surface of the arms 3, furthermore makes it possible to easily attach additional elements enabling them, for example, to further widen the bearing surface on the branches 3, to offer a more pleasant and less slippery contact surface than that of the frame and / or to offer the tweezers of the invention a particular aspect, for example for reasons that are aesthetic, ergonomic and / or advertising.
  • the additional element or elements fixed on the branches 3 also make it possible to bring new functionalities to the tweezers of the invention.
  • the branches3 comprise fastening elements, for example openings 38, 39 and / or notches 37 for fixing therefor, for example by removable wise clip additional elements in molded or injected synthetic material and provided with suitable fasteners for cooperating with those of branches 3.
  • FIGS 4 to 6 illustrate for example an alternative embodiment of the invention wherein each leg 3 comprises a lid 9 fixed on its outer surface and covering almost completely.
  • the lids 9 thus give the tweezers a particular aesthetic appearance while still widening the support surfaces that can be used to actuate them.
  • Each cover 9 preferably comprises fixing elements 97, 99 partially visible on the Figures 4 and 6 and cooperating with the openings 39 and indentations 37 of the corresponding branch 3.
  • the covers 9 are heart-shaped and therefore have an obvious aesthetic appearance.
  • the shape and / or material of the latter may in particular be varied at will in order to give the tweezers of the invention the ease of handling and / or the desired aesthetic appearance.
  • the lids may for example provide a particularly ergonomic support surface, suitable for example for left-handed or righties. They can also be decorative elements similar to jewelry and include for example precious materials, crimped stones, etc. They may also include advertising registrations. Those skilled in the art will also understand that the additional elements attached to the frame 1 may not completely cover its outer surface.
  • the additional elements fixed on the branches 3 provide additional functionalities to the tweezers 1 of the invention.
  • at least one of the additional elements comprises for example a watch, a thermometer, a lamp for example to illuminate the end 2 when pressure is exerted on the branches 3, etc.
  • the additional elements for example the covers 9, are preferably removably attached to the branches 3 so that they are easily interchangeable without any particular tool, nor can damage the tweezers 1 irreversibly. According to the invention, it is thus possible to offer the user several different additional elements offering for example each other functionalities, another ergonomics and / or a different aesthetic appearance. The user is thus able to adapt the tweezers of the invention according to his taste and / or his needs by fixing the additional elements of his choice among those at his disposal.
  • An advantage of the tweezers 1 of the invention is that, given the width of the branches 3 and their short length, they are not considered as dangerous objects according to the new standards in force in the field of air transport. They can be taken by a traveler in an airplane cabin and used during the trip.
  • the two branches 3 of the tweezers 1 are substantially wider than the flat end 2, preferably at least as wide as the thumb of a adult user of average body size.
  • only one limb is wide and comprises for example fixing elements for fixing an additional element, while the other limb is narrow and elongated, similar to a branch of tweezers of the art prior.
  • the armature 1 of the tweezers of the invention is metallic and comprises the end 2 of the same material.
  • a reinforcement of another material for example of molded or injected synthetic material, and comprising a metallic end 2 constituted for example by a pair of fixed metal pins, for example reported, to the synthetic frame.

Description

La présente invention concerne des pinces à usage cosmétique. La présente invention concerne en particulier des brucelles à usage cosmétique.The present invention relates to forceps for cosmetic use. The present invention relates in particular to tweezers for cosmetic use.

Les brucelles sont de petites pinces formées d'une extrémité généralement plate qui se prolonge en deux branches agissant tel un ressort et qui permettent de saisir de très petitsobjetsou d'effectuer des travaux de grande précison. Certaines brucelles sont destinées à un usage cosmétique. Elles sont généralement utilisée pour l'épilation, leur petite taille permettant en particulier de saisir et d'arracher les poils avec précision.The tweezers are small forceps formed of a generally flat end which extends into two branches acting like a spring and which make it possible to seize very small objects or to carry out work of great precison. Some tweezers are intended for cosmetic use. They are generally used for hair removal, their small size allowing in particular to grasp and tear the hair accurately.

Les brucelles de l'art antérieur, particulièrement les brucelles à usage cosmétique, sont généralement fineset longues Leurs branches sont donc étroites et allongées Cette forme communément admise présente cependant plusieurs désavantages. En effet, la manipulation des brucelles de l'art antérieur peut s'avérer malaisée, en particulier pour des personnes à dextérité réduite comme par exemple des personnes âgées Les brucelles de l'art antérieur ont également tendance à rouler involontairement entre lesdoigtsde l'utilisateur, par exemple lorsque ce dernier appuie trop fortement ou de travers sur les branches.The tweezers of the prior art, particularly the tweezers for cosmetic use, are generally thin and long Their branches are therefore narrow and elongated This commonly accepted form, however, has several disadvantages. Indeed, the handling of the tweezers of the prior art can prove difficult, especially for people with reduced dexterity such as the elderly The tweezers of the prior art also have a tendency to roll involuntarily between the fingers of the user , for example when the latter presses too strongly or crookedly on the branches.

On connaît dans l'art antérieur desbrucelles dont lesbranches allongées et essentiellement étroites sont élargies sur une portion limitée afin d'offrir une zone d'appui plus large pour l'actionnement des brucelles. Une telle construction présente toutefois le désavantage que la zone d'appui s'étendant de part et d'autre de l'axe longitudinal des branches offre un brasde levier important permettant une torsion significative de ces dernières en cas d'application d'une force proche d'une de ses extrémités Le risque est alors important qu'un utilisateur appuyant de manière décentrée lorsde l'actionnement des brucelles provoque un mauvais alignement entre les mâchoires lorsde la fermeture voire endommage les brucelles de manière irréversible, en particulier si la charnière entre les deux branches est peu précise et/ou peu solide.In the prior art, there are known nipples whose elongated and essentially narrow branches are enlarged over a limited portion in order to provide a wider support zone for actuating the tweezers. Such a construction, however, has the disadvantage that the bearing zone extending on either side of the longitudinal axis of the branches provides a large lever arm allowing a significant torsion of the latter in case of application of a force close to one of its ends The risk is important that a user pressing eccentrically when operating the tweezers causes misalignment between the jaws during closure or irreversibly damages the tweezers, especially if the hinge between the two branches is not very precise and / or not very solid.

Le document GB 29221 décrit une paire de brucelles en forme de jambes, dont l'arrière des cuisses repose sur la paume de la main, et les extrémités sont saisies entre le pouce et l'index. La robustesse des brucelles est améliorée, mais leur relativement grande taille en rend la préhension malaisée pour les personnes à dextérité réduite.The document GB 29221 describes a pair of leg-shaped tweezers, with the back of the thighs resting on the palm of the hand, and the extremities grasped between thumb and forefinger. The robustness of the tweezers is improved, but their relatively large size makes them difficult to grip for people with reduced dexterity.

Un but de la présente invention est de proposer des brucelles à usage cosmétique ne présentant pas les désavantages des brucelles à usage cosmétique de l'art antérieur.An object of the present invention is to provide tweezers for cosmetic use does not have the disadvantages of tweezers for cosmetic use of the prior art.

Ce but est atteint par des brucelles cosmétiques comprenant les caractéristiques de la revendication indépendante, des variantes avantageuses étant en outre données par les revendications dépendantes.This object is achieved by cosmetic tweezers comprising the features of the independent claim, advantageous variants being further provided by the dependent claims.

Ce but est atteint en particulier car des pinces à usage cosmétique selon la revendication 1. Même une personne à dextérité réduite est ainsi en mesure de saisir aisément les pinces de l'invention entre deux doigts pour les fermer. De plus, la largeur des branches permet d'éviter que ces dernières ne glissent entre les doigts de l'utilisateur et/ou que les pinces ne tournent involontairement lorsqu'elles sont fermées, même fortement ou de travers.This object is achieved in particular because forceps for cosmetic use according to claim 1. Even a person with reduced dexterity is thus able to easily grasp the clamps of the invention between two fingers to close them. In addition, the width of the branches prevents them from slipping between the fingers of the user and / or that the clamps turn involuntarily when closed, even strongly or crooked.

La présente invention sera mieux comprise à l'aide de la description d'une variante préférentielle illustrée par les figures 1 à 6, où:

  • la figure 1 est une vue en perspective de brucelles selon une variante préférentielle de l'invention,
  • la figure 2 est une vue de dessus des brucelles de la figure 1,
  • la figure 3 est une vue de profil des brucelles de la figure 1,
  • la figure 4 est une vue en perspective de brucelles selon une variante préférentielle de l'invention comprenant des éléments supplémentaires fixés sur les branches,
  • la figure 5 est une vue de dessus des brucelles de la figure 2,
  • la figure 6 est une vue de profil des brucelles de la figure 2.
The present invention will be better understood with the aid of the description of a preferred variant illustrated by the Figures 1 to 6 , or:
  • the figure 1 is a perspective view of tweezers according to a preferred variant of the invention,
  • the figure 2 is a top view of the tweezers of the figure 1 ,
  • the figure 3 is a profile view of the tweezers of the figure 1 ,
  • the figure 4 is a perspective view of tweezers according to a preferred variant of the invention comprising additional elements fixed on the branches,
  • the figure 5 is a top view of the tweezers of the figure 2 ,
  • the figure 6 is a profile view of the tweezers of the figure 2 .

Selon une variante préférentielle représentée sur les figures 1 à 3, les brucelles de l'invention comprennent une armature de préférence métallique 1 comprenant une extrémité 2, de préférence étroite et par exemple plate, permettant de saisir avec précision de petits objets. L'homme du métier comprendra que la forme de l'extrémité 2 est de préférence adaptée à l'usage prévu des brucelles. Elle peut par exemple être pointue, coudée, etc. Selon une variante préférentielle, les brucelles de l'invention sont destinéesà un usage cosmétique. L'extrémité 2 est ainsi de préférence adaptée à ce genre d'usage, en particulier à la saisie et à l'arrachage de poils humains.According to a preferred variant represented on the Figures 1 to 3 tweezers of the invention comprise a preferably metal frame 1 comprising an end 2, preferably narrow and for example flat, for accurately grasping small objects. Those skilled in the art will understand that the shape of the end 2 is preferably adapted to the intended use of the tweezers. It can for example be pointed, angled, etc. According to a preferred variant, the tweezers of the invention are intended for cosmetic use. The end 2 is thus preferably adapted to this kind of use, in particular to the gripping and tearing of human hair.

L'extrémité 2 s'élargit rapidement et se prolonge en deux branches 3 relativement larges par rapport à l'extrémité 2. Selon l'invention, la largeur maximale des branches 3 est par exemple au moins égale à la moitié, de préférence aux deux tiers, de la largeur moyenne de la zone d'appui du pouce d'un adulte de corpulence moyenne lorsde l'actionnement des brucelles, de manière à assurer à l'armature 1 une rigidité en flexion et en torsion selon l'axe longitudinal et ainsi offrir un confort et une précision d'utilisation optimaux. Selon une variante encore préférentielle, la largeur maximale desbranches3 est au moinségale à la largeur moyenne de la zone d'appui du pouce d'un adulte de corpulence moyenne lorsde l'actionnement desbrucelles. D'autre part, la longueur maximale desbranches3 est de préférence inférieure à la longueur moyenne du pouce d'un adulte de corpulence moyenne.The end 2 widens rapidly and is extended in two branches 3 relatively wide relative to the end 2. According to the invention, the maximum width of the branches 3 is for example at least equal to half, preferably both third, of the average width of the thumb resting area of an adult of average body size when the tweezers are actuated so as to provide the frame 1 with flexural and torsional stiffness along the longitudinal axis and thus offer optimum comfort and precision of use. According to a further preferred variant, the maximum width of the branches3 is at least equal to the average width of the thumb support area of an adult of average body size when the tweezers are actuated. On the other hand, the maximum length of the branches3 is preferably less than the average length of the thumb of an adult of average body size.

Sur la base d'un échantillonnage effectué lors du développement des brucellesde l'invention, la largeur moyenne de la zone d'appui du pouce d'un adulte de corpulence moyenne lorsde l'actionnement des brucelles a été évalué à environ 20mm tandisque la longueur moyenne du pouce se situe autour de 55mm, hommeset femme confondus. La largeur maximale des branches 3 est ainsi de préférence supérieure à 20mm, tandis que leur longueur maximale est de préférence inférieure à 55mm. Selon une version préférentielle, la largeur maximale desbranches3 est au moins égale à un tiersde leur longueur maximale. Selon une version encore préférentielle, la largeur maximale des branches 3 est au moins égale à la moitié de leur longueur maximale. Dans l'exemple illustré, les branches 3 s'élargissent à partir de l'extrémité 2 sur moinsde la moitié de leur longueur puis conservent leur largeur maximale jusqu'à la zone de liaison 32 reliant les deux branches3 et se trouvant à l'autre extrémité. Les dimensions extérieures de la partie la plus large des branches3, qui détend ainsi sur au moins la moitié de leur longueur, sont ainsi sensiblement celles d'un carré.On the basis of a sampling carried out during the development of tweezers of the invention, the average width of the bearing zone of the thumb of an adult of average body size when operating the tweezers has been evaluated at about 20mm while the average length of the thumb is around 55mm, males and females combined. The maximum width of the branches 3 is thus preferably greater than 20 mm, while their maximum length is preferably less than 55 mm. According to a preferred version, the maximum width of the branches3 is at least equal to one third of their maximum length. According to a still preferred version, the maximum width of the branches 3 is at least equal to half of their maximum length. In the example shown, the branches 3 widen from the end 2 to less than half their length and then retain their maximum width to the connecting zone 32 connecting the two branches 3 and being at the other end. The outer dimensions of the widest part of the branches 3, which thus relaxes at least half their length, are thus substantially those of a square.

L'extrémité 2 est en revanche de préférence étroite, similaire à celle des brucelles de l'art antérieur, de manière à permettre la saisie aisée et isolée de trèspetitsobjetstelsque par exempte des poils humains, etc. La largeur maximale de l'extrémité 2 est ainsi de préférence inférieure au tiers de la largeur maximale des branches 3. Selon une version encore préférentielle, la largeur maximale de l'extrémité 2 est de préférence inférieure à un cinquième de la largeur maximale desbranches3.The end 2 is however preferably narrow, similar to that of tweezers of the prior art, so as to allow the easy and isolated capture of very small objects such as for example human hair, etc. The maximum width of the end 2 is thus preferably less than one-third of the maximum width of the branches 3. In a still preferred version, the maximum width of the end 2 is preferably less than one fifth of the maximum width of the branches3.

Lesbranches3 sont reliées entre elles par l'intermédiaire de lames 30 flexiblesforméesde préférence dans la partie la plus large des branches3, agissant à la manière d'un ressort contre la fermeture des brucelles 1. De préférence, chaque branche 3 comprend deux lames 30, chaque lame 30 prolongeant la lame 30 correspondante de l'autre branche 3. L'effet de ressort maintenant les brucelles 1 ouvertes est de préférence essentiellement assuré par la flexibilité des lames 30 elles-mêmes.The branches 3 are interconnected by means of flexible blades 30 preferably formed in the widest part of the branches 3, acting in the manner of a spring against the closure of the tweezers 1. Preferably, each branch 3 comprises two blades 30, each blade 30 extending the corresponding blade 30 of the other branch 3. The spring effect maintaining the open tweezers 1 is preferably provided mainly by the flexibility of the blades 30 themselves.

La flexibilité des lames 30 est par exemple déterminée et contrôlée par la formation d'un évidement 31 sur chaque lame 30 diminuant localement l'épaisseur de ces dernières. Les évidements 31 permettent, en particulier par le choix de leurs dimensions et de leur symétrie, de déterminer avec précision le degré de flexibilité de chaque lame 30 ainsi que la zone et la direction selon lesquelles s'effectuera l'essentiel de la flexion lorsde l'utilisation des brucelles 1. Les évidements 31 sont de préférence situés le plus loin possible de l'extrémité 2 afin de réduire au maximum l'angle formé entre les branches 3 lorsque les brucelles sont ferméeset garantir une transmission optimale sur l'extrémité 2 de la force exercée sur les branches 3 par l'utilisateur.The flexibility of the blades 30 is for example determined and controlled by the formation of a recess 31 on each blade 30 decreasing locally the thickness of the latter. The recesses 31 allow, in particular by the choice of their dimensions and of their symmetry, to determine with precision the degree of flexibility of each blade 30 as well as the zone and the direction in which the majority of the bending will take place during the use of the tweezers 1. The recesses 31 are preferably located as far as possible from the end 2 in order to reduce as much as possible the angle formed between the branches 3 when the tweezers are closed and to guarantee an optimal transmission on the end 2 of the force exerted on branches 3 by the user.

Les lames 30 de chaque branche 3 sont de préférence reliées aux lames 30 correspondantes de l'autre branche 3 par deszonesde liaison 32 qui ne sont pratiquement pas déformée lorsque les brucelles 1 sont actionnées, même si la force d'appui sur les branches 3 est très élevée. Les zonesde liaison 32 sont par exemple de même matière que les lames 30 mais sensiblement plus large que ces dernières, de sorte que leur rigidité est également sensiblement plus élevée. La rigidité deszonesde liaison 32 garantit notamment que l'extrémité 2 des brucelles se ferme correctement, en évitant tout décalage latéral entre les branches 3.The blades 30 of each limb 3 are preferably connected to the corresponding blades 30 of the other limb 3 by connecting regions 32 which are practically not deformed when the tweezers 1 are actuated, even if the bearing force on the limbs 3 is very high. The bonding areas 32 are for example of the same material as the blades 30 but substantially wider than the latter, so that their rigidity is also substantially higher. The rigidity of the connection zones 32 ensures in particular that the end 2 of the tweezers closes properly, avoiding any lateral offset between the branches 3.

Selon une version préférentielle de l'invention, leszonesde liaison 32 déterminent un certain écartement des branches3 entre elles ce qui permet que, lorsque les brucelles de l'invention sont ouvertes en position de repos, l'angle d'ouverture entre les branches 3 soit relativement faible, voire que lesbranches3 soient sensiblement parallèles. Le faible angle d'ouverture entre les branches 3 lorsque l'extrémité 2 est ouverte procure ainsi aux brucelles de l'invention un confort d'utilisation optimal et un aspect esthétique amélioré malgré des branches 3 relativement courtes.According to a preferred version of the invention, the connection zones 32 determine a certain spacing of the branches3 between them, which allows that, when the tweezers of the invention are open in the rest position, the opening angle between the branches 3 is relatively weak, or that the branches3 are substantially parallel. The low angle of opening between the branches 3 when the end 2 is open thus provides the tweezers of the invention with optimum comfort of use and improved aesthetic appearance despite branches 3 relatively short.

Lesdeux lames30 d'une même branche 3 sont de préférence disposéesde chaque côté de la branche 3 de manière à être aussi écartées que possible l'une de l'autre. Cette disposition permet un contrôle optimal de la précision de la fermeture de l'extrémité plate 2 lorsde l'actionnement des brucelles 1. L'écartement des lames 30 reliant les branches 3 entre elles permet en effet d'éviter que ces dernières ne se décalent latéralement l'une par rapport à l'autre au cours de leur fermeture.The two blades 30 of the same branch 3 are preferably arranged on each side of the branch 3 so as to be as far apart as possible from each other. This arrangement allows an optimal control of the accuracy of the closure of the flat end 2 during the actuation of the tweezers 1. The spacing of the blades 30 connecting the branches 3 between them makes it possible to prevent the latter from shifting. laterally with respect to each other during their closure.

Il apparaîtra clairement à l'homme du métier que le nombre de lames 30 de chaque branche 3 peut être choisi lors de la conception des brucelles de l'invention, par exemple pour adapter cesdernièresà un usage particulier et/ou leur conférer une résistance déterminée. Lesbranches3 des brucelles 1 de l'invention peuvent ainsi par exemple comprendre une, deux, trois lames flexibles ou plusselon l'aspect esthétique et/ou le confort de fonctionnement désiré.It will be clear to those skilled in the art that the number of blades 30 of each limb 3 can be selected during the design of the tweezers of the invention, for example to adapt these last for a particular use and / or to confer a specific resistance. Branches 3 tweezers 1 of the invention can for example include one, two, three flexible blades or moreaccordons aesthetic appearance and / or desired operating comfort.

L'armature 1 des brucelles de l'invention est de préférence formée par électroérosion puis par pliage d'une plaque métallique. Les deux branches 3 sont ainsi découpées de manière symétriques et reliées entre elles par les zones de liaison 32. Une fois découpée, l'armature est pliée au niveau des zones de liaison 32. Le pliage est effectué avec la plus grande précision afin d'assurer un alignement correct des branches3 et l'écartement recherché entre elles.The armature 1 of the tweezers of the invention is preferably formed by electroerosion and then by folding a metal plate. The two branches 3 are thus cut symmetrically and interconnected by the connecting zones 32. Once cut, the reinforcement is folded at the connection areas 32. The folding is performed with the greatest precision in order to ensure proper alignment of the branches3 and the desired spacing between them.

L'homme du métier comprendra cependant que d'autres formes de réalisation sont également possibles dans le cadre de l'invention. Selon une variante, chaque branche 3 est par exemple fabriquée séparément puis fixée directement ou à traversun élément de liaison par l'extrémité de ses lames 30 à une autre branche 3. La fixation se fait par exemple par soudure, par collage, etc. Une telle réalisation présente toutefois le désavantage qu'elle est plus coûteuse, plusfragile et généralement moins précise.Those skilled in the art will understand, however, that other embodiments are also possible within the scope of the invention. According to a variant, each branch 3 is for example manufactured separately and then fixed directly or through a connecting element by the end of its blades 30 to another branch 3. The fixing is done for example by welding, gluing, etc.. Such an embodiment however has the disadvantage that it is more expensive, more fragile and generally less accurate.

Lorsde leur utilisation, les brucelles de l'invention sont de préférence saisies par lesdeux branches3 par un utilisateur, par exemple entre le pouce et l'index d'une même main. Contrairement aux brucelles de l'art antérieur, les brucelles de l'invention sont de préférence saisies avec le pouce orienté vers le haut tandisque l'index est recourbé contre la branche inférieure. Une telle saisie des brucelles permet à l'utilisateur d'exercer une force plus importante sur l'extrémité 2 que dansle casde brucelles de l'art antérieur qui sont généralement actionnéesdu bout des doigts.When used, the tweezers of the invention are preferably grasped by the two branches3 by a user, for example between the thumb and forefinger of the same hand. Unlike tweezers of the prior art, the tweezers of the invention are preferably grasped with the thumb pointing upward while the index is bent against the lower branch. Such seizure of the tweezers allows the user to exert a greater force on the end 2 than in the case of tweezers of the prior art which are generally actuated with the fingertips.

L'utilisateur exerce une pression sur les surfaces externes des branches3, de préférence sur une zone située entre les évidements 31 et l'extrémité plate 2. Les lames 30 flexibles se plient alors essentiellement dans la zone de l'évidement 31 tandis que le reste des branches 3 conservent leur forme initiale, ce qui a pour effet de fermer l'extrémité plate 2, par exemple pour saisir un petit objet. Lorsque la pression sur les surfaces externes des branches 3 est relâchée par l'utilisateur, les brucelles 1 s'ouvrent alors sous la force de ressort des lames 30 qui reprennent leur position initiale.The user exerts pressure on the outer surfaces of the legs 3, preferably on an area between the recesses 31 and the flat end 2. The flexible blades 30 then bend substantially in the area of the recess 31 while the rest branches 3 retain their original shape, which has the effect of closing the flat end 2, for example to grab a small object. When the pressure on the outer surfaces of the limbs 3 is released by the user, the tweezers 1 then open under the spring force of the blades 30 which resume their initial position.

Selon une version préférentielle de l'invention, l'extrémité 2 est décentrée par rapport aux branches3 et est reliée à ces dernières selon un axe différent de leur axe longitudinal. Cette position décentrée et désaxée de l'extrémité 2 permet d'éviter que la partie large de l'armature 1 ne gêne la visibilité de l'utilisateur lors de l'utilisation des brucelles de l'invention. Cette position permet également un bon maintien de la partie large de l'armature 1 dans la paume de la main de l'utilisateur tout en assurant un accès optimal à l'extrémité 2. L'homme du métier comprendra cependant que d'autres position sont possible pour l'extrémité 2. Elle peut en particulier être centrée par rapport aux branches3 et/ou reliée à ces dernières selon un axe parallèle à leur axe longitudinal.According to a preferred version of the invention, the end 2 is off-center with respect to the branches 3 and is connected to the latter along an axis different from their longitudinal axis. This off-center and off-axis position of the end 2 makes it possible to prevent the wide part of the frame 1 from interfering with the user's visibility when using the tweezers of the invention. This position also allows a good hold of the wide part of the frame 1 in the palm of the hand of the user while ensuring optimal access to the end 2. However, the skilled person will understand that other position are possible for the end 2. It can in particular be centered relative to the branches3 and / or connected to the latter along an axis parallel to their longitudinal axis.

La largeur des branches 3 permet d'offrir à l'utilisateur une surface d'appui importante pour l'actionnement des brucelles contre la force de ressort des lames 30. Même une personne à dextérité réduite est ainsi en mesure de saisir aisément les brucelles de l'invention entre deux doigtspour lesfermer. De plus, la largeur desbranches3 permet d'éviter que ces dernières ne glissent entre lesdoigtsde l'utilisateur et/ou que les brucelles ne tournent involontairement lorsqu'elles sont fermées, même fortement ou de travers.The width of the branches 3 allows to offer the user a large support surface for the actuation of the tweezers against the spring force of the blades 30. Even a person with reduced dexterity is thus able to easily grasp the tweezers of the invention between two fingers to close them. In addition, the width ofbranches3 prevents them from sliding between the fingers of the user and / or tweezers turn involuntarily when closed, even strongly or crooked.

La largeur desbranches3 offre par ailleursune meilleure stabilité de l'armature 1 par rapport à l'extrémité 2.The width of the branches3 also offers better stability of the armature 1 relative to the end 2.

La largeur de l'armature 1, en particulier la surface importante des branches 3, permet en outre d'y fixer aisément des d'éléments supplémentaires permettant par exemple d'élargir encore la surface d'appui sur les branches 3, d'offrir une surface de contact plus agréable et moins glissante que celle de l'armature et/ou d'offrir aux brucelles de l'invention un aspect particulier, par exemple pour des raison est esthétiques, ergonomiques et/ou publicitaires. Selon une variante de l'invention expliquée plus bas, le ou les éléments supplémentaires fixés sur les branches 3 permettent également d'apporter de nouvelles fonctionnalités aux brucelles de l'invention.The width of the armature 1, in particular the large surface of the arms 3, furthermore makes it possible to easily attach additional elements enabling them, for example, to further widen the bearing surface on the branches 3, to offer a more pleasant and less slippery contact surface than that of the frame and / or to offer the tweezers of the invention a particular aspect, for example for reasons that are aesthetic, ergonomic and / or advertising. According to a variant of the invention explained below, the additional element or elements fixed on the branches 3 also make it possible to bring new functionalities to the tweezers of the invention.

Selon une version préférentielle des brucelles de l'invention, les branches3 comprennent desélémentsde fixation, par exemple des ouvertures 38, 39 et/ou des encoches 37 permettant d'y fixer par exemple par clip sage amovible desélémentssupplémentairesen matière synthétique moulée ou injectée et munis d'éléments de fixation adéquats destinés à coopérer avec ceux des branches 3.According to a preferred version of the tweezers of the invention, the branches3 comprise fastening elements, for example openings 38, 39 and / or notches 37 for fixing therefor, for example by removable wise clip additional elements in molded or injected synthetic material and provided with suitable fasteners for cooperating with those of branches 3.

Lesfigures4 à 6 illustrent par exemple une variante d'exécution de l'invention où chaque branche 3 comprend un couvercle 9 fixé sur sa surface externe et la recouvrant presque entièrement. Selon cette variante, les couvercles 9 confèrent ainsi aux brucelles un aspect esthétique particulier tout en élargissant encore les surfaces d'appui utilisables pour les actionner. Chaque couvercle 9 comprend de préférence des éléments de fixation 97, 99 partiellement visibles sur les figures 4 et 6 et coopérant avec lesouvertures39 et les échancrures 37 de la branche 3 correspondante.Figures 4 to 6 illustrate for example an alternative embodiment of the invention wherein each leg 3 comprises a lid 9 fixed on its outer surface and covering almost completely. According to this variant, the lids 9 thus give the tweezers a particular aesthetic appearance while still widening the support surfaces that can be used to actuate them. Each cover 9 preferably comprises fixing elements 97, 99 partially visible on the Figures 4 and 6 and cooperating with the openings 39 and indentations 37 of the corresponding branch 3.

Dans l'exemple illustré, les couvercles 9 sont en forme de coeur et présentent donc un aspect esthétique évident. L'homme du métier comprendra cependant que d'autres couvercles sont également envisageables dans le cadre de l'invention. La forme et/ou la matière de ces derniers peut en particulier être variée à volonté afin de conférer aux brucelles de l'invention la facilité de manipulation et/ou l'aspect esthétique désirés. Les couvercles peuvent par exemple offrir une surface d'appui particulièrement ergonomique, adaptée par exemple aux gauchers ou aux droitiers. Ils peuvent également être des éléments décoratifs s'apparentant à des bijoux et comprendre par exemple des matériaux précieux, des pierres serties, etc. Ils peuvent également comprendre des inscription publicitaires. L'homme du métier comprendra également que les éléments supplémentaires fixés sur l'armature 1 peuvent ne pas recouvrir entièrement sa surface externe.In the example illustrated, the covers 9 are heart-shaped and therefore have an obvious aesthetic appearance. Those skilled in the art will however understand that other lids are also conceivable within the scope of the invention. The shape and / or material of the latter may in particular be varied at will in order to give the tweezers of the invention the ease of handling and / or the desired aesthetic appearance. The lids may for example provide a particularly ergonomic support surface, suitable for example for left-handed or righties. They can also be decorative elements similar to jewelry and include for example precious materials, crimped stones, etc. They may also include advertising registrations. Those skilled in the art will also understand that the additional elements attached to the frame 1 may not completely cover its outer surface.

Selon une autre variante de l'invention, leséléments supplémentaires fixés sur les branches 3 apportent des fonctionnalités supplémentaires aux brucelles 1 de l'invention. Selon cette variante, au moinsun des éléments supplémentaires comprend par exemple une montre, un thermomètre, une lampe pour par exemple éclairer l'extrémité 2 lorsqu'une pression est exercée sur les branches 3, etc.According to another variant of the invention, the additional elements fixed on the branches 3 provide additional functionalities to the tweezers 1 of the invention. According to this variant, at least one of the additional elements comprises for example a watch, a thermometer, a lamp for example to illuminate the end 2 when pressure is exerted on the branches 3, etc.

Les éléments supplémentaires, par exemple les couvercles 9, sont de préférence fixés de manière amovible sur lesbranches3de sorte qu'ils sont facilement interchangeables sans outil particulier, ni risque d'endommager les brucelles 1 de manière irréversible. Selon l'invention, il est ainsi possible de proposer à l'utilisateur plusieurs éléments supplémentaires différents offrant par exemple chacun d'autres fonctionnalités, une autre ergonomie et/ou un aspect esthétique différent. L'utilisateur est ainsi en mesure d'adapter les brucelles de l'invention selon son goût et/ou ses besoins en y fixant les éléments supplémentaires de son choix parmi ceux à sa disposition.The additional elements, for example the covers 9, are preferably removably attached to the branches 3 so that they are easily interchangeable without any particular tool, nor can damage the tweezers 1 irreversibly. According to the invention, it is thus possible to offer the user several different additional elements offering for example each other functionalities, another ergonomics and / or a different aesthetic appearance. The user is thus able to adapt the tweezers of the invention according to his taste and / or his needs by fixing the additional elements of his choice among those at his disposal.

Un avantage des brucelles 1 de l'invention est que, étant donné la largeur des branches 3 et leur faible longueur, elles ne sont pas considérées comme des objets dangereux selon les nouvelles normes en vigueur dans le domaine du transport aérien. Elles peuvent ainsi être emportée par un voyageur dansune cabine d'avion et être utilisées durant le voyage.An advantage of the tweezers 1 of the invention is that, given the width of the branches 3 and their short length, they are not considered as dangerous objects according to the new standards in force in the field of air transport. They can be taken by a traveler in an airplane cabin and used during the trip.

Selon la version préférentielle de l'invention décrite plus haut, les deux branches 3 des brucelles 1 sont sensiblement plus larges que l'extrémité plate 2, de préférence au moins aussi larges que le pouce d'un utilisateur adulte de corpulence moyenne. Selon une variante de l'invention, seule une branche est large et comprend par exemple des élémentsde fixation pour la fixation d'un élément supplémentaire, tandis que l'autre branche est étroite et allongée, similaire à une branche de brucelles de l'art antérieur.According to the preferred version of the invention described above, the two branches 3 of the tweezers 1 are substantially wider than the flat end 2, preferably at least as wide as the thumb of a adult user of average body size. According to a variant of the invention, only one limb is wide and comprises for example fixing elements for fixing an additional element, while the other limb is narrow and elongated, similar to a branch of tweezers of the art prior.

Selon la version préférentielle de l'invention décrite plus haut, l'armature 1 des brucelles de l'invention est métallique et comprend l'extrémité 2 de même matière. L'homme du métier comprendra cependant qu'il est également envisageable, dans le cadre de l'invention, d'imaginer une armature en une autre matière, par exemple en matière synthétique moulée ou injectée, et comprenant une extrémité 2 métallique constituée par exemple par une paire de pointes en métal fixées, par exemple rapportées, à l'armature synthétique.According to the preferred version of the invention described above, the armature 1 of the tweezers of the invention is metallic and comprises the end 2 of the same material. Those skilled in the art will however understand that it is also conceivable, in the context of the invention, to imagine a reinforcement of another material, for example of molded or injected synthetic material, and comprising a metallic end 2 constituted for example by a pair of fixed metal pins, for example reported, to the synthetic frame.

Claims (22)

  1. Tweezers for cosmetic use, comprising two branches (3) having one metallic extremity (2) for seizing small objects, wherein the maximum width of said two branches (3) is greater than half the average width of the resting surface of the thumb of an adult user of average corpulence when said tweezers are actuated, wherein the maximum length of said two branches (3) is less than the average length of the thumb of an adult of average corpulence,
    characterized in that the maximum width of said two branches (3) is greater than the average width of the resting surface of the thumb of an adult user of average corpulence when actuating said tweezers.
  2. Tweezers according to claim 1, having a metallic frame structure (1), said frame structure (1) comprising said two branches (3) and said extremity (2).
  3. Tweezers according to one of the preceding claims, the maximum width of said two branches (3) being greater than a quarter of the maximum length of said two branches (3).
  4. Tweezers according to the preceding claim, the maximum width of said two branches (3) being greater than half the maximum length of said two branches (3).
  5. Tweezers according to the preceding claim, the outer dimensions of half of said two branches (3) being more or less those of a square.
  6. Tweezers according to one of the preceding claims, the maximum width of said extremity (2) being less than a third of the maximum width of said two branches (3).
  7. Tweezers according to the preceding claim, the maximum width of said extremity (2) being less than a fifth of the maximum width of said two branches (3).
  8. Tweezers according to one of the preceding claims, each of said two branches (3) having at least one flexible blade (30) connecting it to the other of said two branches (3).
  9. Tweezers according to the preceding claim, said at least one flexible blade (30) having a recess for determining the flexibility of said at least one blade (30).
  10. Tweezers according to one of the claims 8 or 9, each of said two branches (3) having two flexible blades (30).
  11. Tweezers according to one of the claims 8 to 10, said at least one flexible blade (30) of said two branches (3) being connected to one another through rigid connecting zones (32).
  12. Tweezers according to the preceding claim, said connecting zones (32) determining the distance between said two branches (3).
  13. Tweezers according to the preceding claim, said distance being determined so that said two branches (3) are more or less parallel when said tweezers are open in resting position.
  14. Tweezers according to one of the claims 11 to 13, said connecting zones being formed in the extension of said flexible blades (30), the width of said connecting zones (32) being greater than the width of said flexible blades (30).
  15. Tweezers according to one of the preceding claims, having a frame structure (1) with said two branches (3), said frame structure (1) being formed by electro-discharging a metallic plate.
  16. Tweezers according to the preceding claim, formed by folding said frame structure (1).
  17. Tweezers according to one of the preceding claims, at least one of said two branches (3) including fastening elements (37, 38, 39) for fastening an additional decorative element (9).
  18. Tweezers according to the preceding claim, said additional decorative element being a cover (9) covering at least partially the outer surface of said at least one of said two branches (3).
  19. Tweezers according to one of the claims 17 or 18, said additional element (9) having a resting surface greater than the outer surface of said at least one of said two branches (3).
  20. Tweezers according to one of the claims 17 to 19, said additional element (9) being of moulded or injected synthetic material.
  21. Tweezers according to one of the preceding claim, said extremity (2) being off-centre relatively to said two branches (3).
  22. Tweezers according to one of the preceding claims, said extremity (2) being off-axis relatively to said two branches (3).
EP05735718.8A 2004-05-03 2005-04-13 Cosmetic tweezers Active EP1742552B1 (en)

Applications Claiming Priority (2)

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CH7702004 2004-05-03
PCT/EP2005/051637 WO2005112686A1 (en) 2004-05-03 2005-04-13 Cosmetical pliers

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JP (1) JP4904453B2 (en)
CN (1) CN100571570C (en)
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CA (1) CA2565119C (en)
ES (1) ES2566621T3 (en)
HK (1) HK1105339A1 (en)
MX (1) MXPA06012704A (en)
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BRPI0510238B1 (en) 2017-04-25
RU2006142699A (en) 2008-06-10
ES2566621T3 (en) 2016-04-14
CN1980584A (en) 2007-06-13
JP2007536039A (en) 2007-12-13
HK1105339A1 (en) 2008-02-15
RU2409301C2 (en) 2011-01-20
MXPA06012704A (en) 2007-03-26
CN100571570C (en) 2009-12-23
PT1742552E (en) 2016-03-31
WO2005112686A1 (en) 2005-12-01
US20070112378A1 (en) 2007-05-17
EP1742552A1 (en) 2007-01-17
CA2565119C (en) 2012-09-25
JP4904453B2 (en) 2012-03-28
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US8388648B2 (en) 2013-03-05

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