EP3325885B1 - Lighter and method for lining such a lighter with a protective element - Google Patents

Lighter and method for lining such a lighter with a protective element Download PDF

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Publication number
EP3325885B1
EP3325885B1 EP16741606.4A EP16741606A EP3325885B1 EP 3325885 B1 EP3325885 B1 EP 3325885B1 EP 16741606 A EP16741606 A EP 16741606A EP 3325885 B1 EP3325885 B1 EP 3325885B1
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EP
European Patent Office
Prior art keywords
lighter
film
protective element
lighter according
thickness
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EP16741606.4A
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German (de)
French (fr)
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EP3325885A2 (en
Inventor
André Le Borgne
Frédéric THIEC
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Hameur SA
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Hameur SA
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Publication of EP3325885A2 publication Critical patent/EP3325885A2/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q2/00—Lighters containing fuel, e.g. for cigarettes
    • F23Q2/34—Component parts or accessories
    • F23Q2/36—Casings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q2/00—Lighters containing fuel, e.g. for cigarettes
    • F23Q2/28—Lighters characterised by electrical ignition of the fuel
    • F23Q2/285—Lighters characterised by electrical ignition of the fuel with spark ignition
    • F23Q2/287—Lighters characterised by electrical ignition of the fuel with spark ignition piezoelectric

Definitions

  • the present invention relates to a lighter and a method of covering the body of a lighter by means of a protective element.
  • a lighter conventionally comprises a lighter body provided with a reservoir and an igniter.
  • the tank is a fuel tank.
  • the igniter can be of different types, in particular being a piezoelectric type igniter, a friction igniter, or simply an electric igniter.
  • a friction igniter has a thumb wheel that causes friction on contact with a spark stone. The lighting of a lighter involves in this latter case the manipulation of the wheel, generally with the thumb. When the thumb escapes from the manipulation of the wheel, it then presses, almost simultaneously, on a pusher of a valve which releases a fuel. The release of fuel occurs at the same time that the spark occurs, causing the flame.
  • the valve valve In the context of piezoelectric ignitions, the valve valve is pressed by a finger of the user, generally the thumb. When the thumb is pressed on this pusher, a first movement of this pusher compresses a spring. The continuation of this support suddenly releases the spring. This then strikes a piezoelectric quartz which also produces a spark. The production of the spark is also simultaneous with the release of the fuel by the consecutive action on the pusher which opens the fuel valve.
  • the type of film used for decoration is either glossy or matt.
  • the disadvantage of this type of film is that it does not resist scratches well and that it can be torn off easily.
  • the present invention aims to remedy these drawbacks.
  • the protective element is composed of a plurality of layers and has a thickness of between 25 and 200 ⁇ m and comprises an outer protective film composed of a plastic film to which is added by coating a layer of aliphatic polyurethane of thickness included between 10 and 75 ⁇ m, which contains between 30 and 100% solid depending on the degree of softness to the touch required.
  • the decoration of lighters of the prior art has a low resistance to scratching and the tearing of the protective film.
  • the protective film has better resistance to scratching, tearing and better softness to the touch.
  • the outer protective film comprises an adhesive material intended to hold the protective element on the body of the lighter.
  • the protective element comprises a support film positioned on a layer lower than the protective film, said support film comprises a first face on which an adhesive material is added to maintain the protective film on the support film.
  • the protective element is composed of two films (protective and support film) improving the scratch and tear resistance while retaining a better softness when touched.
  • the support film has a second face comprising an adhesive material intended to hold the external protective element on the body of the lighter.
  • the protective element has a thickness of between 30 and 60 ⁇ m.
  • the plastic film has a thickness of between 10 and 40 ⁇ m.
  • the support film has a thickness of between 15 and 125 ⁇ m.
  • the coefficient of friction of the outer protective film is between 0.40 and 0.70.
  • the tack of the outer protective film is between 100 and 140 mN.
  • the protective element includes a retaining mechanism to resist removal of said protective element from the lighter body.
  • the protective element comprises an area for decorating the lighter.
  • the protective element is in the form of a sleeve adapted to the shape of the lighter.
  • the present invention relates to a method of dressing the body of the lighter according to the first aspect of the invention by means of a protective element.
  • the purpose of the following description is to demonstrate the resistance and the improvement in the feel of the protective film compared to a glossy film and a matt film.
  • the protective film will be called soft touch film ("soft touch” trademark for "soft touch” in French).
  • the protective film comprises a plurality of layers (multilayer) and comprises on the last layer, called the outer layer, the soft touch film.
  • the soft touch film tested corresponds to the protective element whose thickness is 47 ⁇ m.
  • the glossy film has a thickness is 30 ⁇ m and the matt film has a thickness is 20 ⁇ m.
  • the three films compared are composed of the association of an opaque printed adhesive plastic film associated with one or two transparent films depending on the finishes.
  • the measurement protocol is as follows and is used to carry out the friction measurement and the adhesion measurement.
  • the system allows, for transparent materials, a precise observation of the actual indentor / sample contact area using an inverted microscope.
  • the figure 1 shows a block diagram of the measurements.
  • This figure shows an indenter 20, a sample 21 to be tested and a camera 22.
  • the indentor is used in the technique of indentation for measuring the hardness of a material.
  • the entire system is characterized by force measurement as a function of displacement in ranges which start from a few thousand Newtons up to fifty newtons and with micrometric displacement precision.
  • This device is intended to measure normal and / or tangential forces applied to samples via the indenter 20 as a function of a relative displacement, normal or tangential.
  • the motorization of the transverse axis opens the possibility of carrying out friction tests (tribometer) or scratch tests as well as transverse force ramps.
  • the system is equipped with a contactless optical sensor.
  • the mapping is performed on a 1x1 mm surface with a 2 ⁇ m step.
  • the sensor used has a measurement range of 200 ⁇ m with a vertical resolution of 7nm as well as a spot size with a diameter of 2 ⁇ m.
  • the films are previously cut and glued onto a glass slide (laboratory microscope glass) for each film and each type of measurement.
  • Ra is the arithmetic mean roughness of the profile. Ra is used as an overall assessment of the amplitude of the profile roughness but does not provide any information on the spatial distribution of the profile irregularities or the shape of the profile. Ra is useful for random rough surfaces (stochastic) machined with tools that do not leave too many marks on the surface, such as sanded, milled or polished surfaces.
  • the Rsk criterion is the asymmetry of the profile: asymmetry of the height distribution. This parameter is important because it provides information on the morphology of the surface condition. A negative value of Rsk corresponds to a surface with peaks and protrusions protruding above the surface, while a positive value corresponds to a plateau surface with stripes or deep pores. It is therefore an important parameter for characterizing contact or lubrication functions. This parameter, however, says nothing about the amplitude of the roughness, unlike Ra.
  • the criterion Rku is the flattening of the profile. This criterion characterizes the width of the height distribution.
  • Matte and soft touch films are very close neighbors in terms of amplitude.
  • the three films also have an absence of graining.
  • the associated descriptor is smooth (and not rough / rough) whatever the finish produced.
  • the figure 2 represents the adhesion measurement for the glossy film.
  • the figure 3 represents the adhesion measurement for the matt film.
  • the figure 4 represents the grip measurement for the soft touch film.
  • the soft touch film has a tack almost twice as high as the others.
  • the measurement of the dry friction coefficient on the different films is presented to Figures 5 to 7 .
  • the figure 5 represents a measurement curve of coefficient of friction for the glossy film.
  • the figure 6 represents a curve for measuring the coefficient of friction for the matt film.
  • the figure 7 represents a curve for measuring the coefficient of friction for the soft touch film.
  • the reference F corresponds to the static coefficient F.
  • the measurement is made by applying a constant normal load of 1.5N and moving the sample.
  • the start of the curve obtained corresponds to a tangential tensioning between the indenter and the sample defining the initial force ramp at the start of the measurement.
  • the measurements carried out make it possible to differentiate in a relevant way the different types of film.
  • the protective film with the “soft touch” coating has characteristics very clearly different from other films in terms of orthogonal touch with a coefficient of friction twice as high as the other films analyzed.
  • the “soft touch” protective film reduces the stick-slip phenomenon when it is observed on the other films under the same experimental conditions.
  • a scratching stylus is used of which it has a spherical tip with a diameter of 1 mm which can apply a force between 0 and 30 N.
  • the test is conducted on the decorated lighter (with the different versions of films possible) at each defined load, the stylus moves over a distance between 40 and 50mm, at a speed of about 45mm / s.
  • the soft touch film has a scratch resistance twenty times greater than glossy film and four times greater than matt film.
  • the Soft Touch finish only exhibits deformation (presence of a line) while the other two films are torn off.
  • the figure 8 represents the construction of the protective element.
  • a roll of support film 23 is unwound to be assembled with the protective film 24.
  • a layer of adhesive material 25 is disposed between the support film 23 and the protective film 24.
  • the arrow shows the direction of manufacture.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Laminated Bodies (AREA)
  • Lighters Containing Fuel (AREA)

Description

DOMAINE TECHNIQUE DE L'INVENTIONTECHNICAL FIELD OF THE INVENTION

La présente invention a pour objet un briquet et un procédé d'habillage du corps d'un briquet au moyen d'un élément protecteur.The present invention relates to a lighter and a method of covering the body of a lighter by means of a protective element.

ETAT DE LA TECHNIQUESTATE OF THE ART

Un briquet comporte d'une manière classique un corps de briquet muni d'un réservoir et d'un allumeur. Le réservoir est un réservoir de combustible. L'allumeur peut être de différents types, notamment être un allumeur de type piézo-électrique, un allumeur à friction, ou simplement électrique. Un allumeur à friction comporte une molette qui entraîne une friction au contact d'une pierre à étincelles. L'allumage d'un briquet comporte dans ce dernier cas la manipulation de la molette, en général avec le pouce. Lorsque le pouce échappe de la manipulation de la molette, il appuie ensuite, quasi simultanément, sur un poussoir d'une valve qui libère un combustible. La libération du combustible se produit au moment même où se produit l'étincelle, provoquant ainsi la flamme.A lighter conventionally comprises a lighter body provided with a reservoir and an igniter. The tank is a fuel tank. The igniter can be of different types, in particular being a piezoelectric type igniter, a friction igniter, or simply an electric igniter. A friction igniter has a thumb wheel that causes friction on contact with a spark stone. The lighting of a lighter involves in this latter case the manipulation of the wheel, generally with the thumb. When the thumb escapes from the manipulation of the wheel, it then presses, almost simultaneously, on a pusher of a valve which releases a fuel. The release of fuel occurs at the same time that the spark occurs, causing the flame.

Dans le cadre des allumages piézo-électriques, le poussoir de la valve est sollicité par un doigt de l'utilisateur, en général le pouce. Lors de l'appui du pouce sur ce poussoir un premier déplacement de ce poussoir comprime un ressort. La continuation de cet appui libère brutalement le ressort. Celui-ci vient alors frapper un quartz piézo-électrique qui lui aussi produit une étincelle. La production de l'étincelle est également simultanée avec la libération du combustible par l'action consécutive sur le poussoir qui ouvre la valve de combustible.In the context of piezoelectric ignitions, the valve valve is pressed by a finger of the user, generally the thumb. When the thumb is pressed on this pusher, a first movement of this pusher compresses a spring. The continuation of this support suddenly releases the spring. This then strikes a piezoelectric quartz which also produces a spark. The production of the spark is also simultaneous with the release of the fuel by the consecutive action on the pusher which opens the fuel valve.

Les briquets sont très répandus et souvent utilisés comme des objets publicitaires.Lighters are very common and often used as promotional items.

Le type de film utilisé pour la décoration (manchon ou étiquette) est soit brillant ou mat. L'inconvénient de ce type de film est qu'il ne résiste pas bien aux rayures et qu'il peut être arraché facilement.The type of film used for decoration (sleeve or label) is either glossy or matt. The disadvantage of this type of film is that it does not resist scratches well and that it can be torn off easily.

Le document DE 84 08 596 U1 montre toutes les caractéristiques du préambule de la revendication 1.The document DE 84 08 596 U1 shows all the features of the preamble of claim 1.

OBJET DE L'INVENTIONOBJECT OF THE INVENTION

La présente invention vise à remédier à ces inconvénients.The present invention aims to remedy these drawbacks.

A cet effet, selon un premier aspect, la présente invention vise un briquet comprenant :

  • un corps de briquet comprenant un réservoir de combustible avec une soupape pour en libérer le combustible ;
  • un assemblage selon un système piézoélectrique, électrique, ou de roue à frottoir pouvant être tourné par un utilisateur pour produire des étincelles orientées sur le combustible libérée de ladite soupape, ledit assemblage de roue à frottoir étant monté sur ledit corps de briquet avec au moins une partie de celui-ci exposée pour la manipulation et la rotation par l'utilisateur ;
  • un actionneur de soupape pouvant être abaissé pour actionner ladite soupape et libérer ledit combustible ;
  • un élément de protection monté sur ledit corps de briquet ;
To this end, according to a first aspect, the present invention relates to a lighter comprising:
  • a lighter body comprising a fuel tank with a valve for releasing the fuel therefrom;
  • an assembly according to a piezoelectric, electric, or friction wheel system which can be turned by a user to produce sparks oriented on the fuel released from said valve, said friction wheel assembly being mounted on said lighter body with at least one part of it exposed for manipulation and rotation by the user;
  • a lowerable valve actuator for actuating said valve and releasing said fuel;
  • a protective element mounted on said lighter body;

L'élément de protection est composé d'une pluralité de couches et a une épaisseur comprise entre 25 et 200 µm et comporte un film protecteur extérieur composé d'un film plastique sur lequel est ajoutée par revêtement une couche de polyuréthane aliphatique d'épaisseur comprise entre 10 et 75 µm, qui contient entre 30 et 100% de solide en fonction du degré de douceur au toucher requis.The protective element is composed of a plurality of layers and has a thickness of between 25 and 200 μm and comprises an outer protective film composed of a plastic film to which is added by coating a layer of aliphatic polyurethane of thickness included between 10 and 75 µm, which contains between 30 and 100% solid depending on the degree of softness to the touch required.

La décoration des briquets de l'art antérieur comporte une faible résistance à la rayure et l'arrachement du film protecteur.The decoration of lighters of the prior art has a low resistance to scratching and the tearing of the protective film.

Grâce à ces dispositions, le film protecteur à une meilleure résistance à la rayure, à l'arrachement et une meilleure douceur au touché.Thanks to these provisions, the protective film has better resistance to scratching, tearing and better softness to the touch.

Selon un mode de réalisation, le film protecteur extérieur comporte une matière adhésive prévue pour maintenir l'élément protecteur sur le corps du briquet.According to one embodiment, the outer protective film comprises an adhesive material intended to hold the protective element on the body of the lighter.

Selon un autre mode de réalisation, l'élément de protection comporte un film support positionnée sur une couche inférieure au film protecteur, ledit film support comporte une première face sur laquelle est ajoutée une matière adhésive pour maintenir le film protecteur sur le film support.According to another embodiment, the protective element comprises a support film positioned on a layer lower than the protective film, said support film comprises a first face on which an adhesive material is added to maintain the protective film on the support film.

De cette façon, l'élément protecteur est composé de deux films (protecteur et film support) améliorant la résistance à la rayure et à l'arrachement tout en conservant une meilleure douceur au touché.In this way, the protective element is composed of two films (protective and support film) improving the scratch and tear resistance while retaining a better softness when touched.

Dans un mode de réalisation, le film support comporte une deuxième face comportant une matière adhésive prévue pour maintenir l'élément protecteur extérieur sur le corps du briquet.In one embodiment, the support film has a second face comprising an adhesive material intended to hold the external protective element on the body of the lighter.

Dans un mode de réalisation, l'élément de protection a une épaisseur comprise entre 30 et 60 µm.In one embodiment, the protective element has a thickness of between 30 and 60 μm.

Dans un mode de réalisation, le film plastique a une épaisseur comprise entre 10 et 40 µm.In one embodiment, the plastic film has a thickness of between 10 and 40 μm.

Dans un mode de réalisation, le film support a une épaisseur comprise entre 15 et 125 µm.In one embodiment, the support film has a thickness of between 15 and 125 μm.

Dans un mode de réalisation, le coefficient de frottement du film protecteur extérieur est compris entre 0,40 et 0,70.In one embodiment, the coefficient of friction of the outer protective film is between 0.40 and 0.70.

Dans un mode de réalisation, la pégosité du film protecteur extérieur est comprise entre 100 et 140 mN.In one embodiment, the tack of the outer protective film is between 100 and 140 mN.

Dans un mode de réalisation, l'élément de protection comprend un mécanisme de retenue pour résister à l'enlèvement dudit élément de protection du corps de briquet.In one embodiment, the protective element includes a retaining mechanism to resist removal of said protective element from the lighter body.

Dans un mode de réalisation, l'élément de protection comprend une zone de décoration du briquet.In one embodiment, the protective element comprises an area for decorating the lighter.

Dans un mode de réalisation, l'élément de protection est de forme d'un manchon adapté à la forme du briquet.In one embodiment, the protective element is in the form of a sleeve adapted to the shape of the lighter.

Selon un deuxième aspect, la présente invention vise un procédé d'habillage du corps du briquet selon le premier aspect de l'invention au moyen d'un élément protecteur.According to a second aspect, the present invention relates to a method of dressing the body of the lighter according to the first aspect of the invention by means of a protective element.

Les avantages, buts et caractéristiques particuliers de ce procédé étant similaires à ceux du briquet objet de la présente invention, ils ne sont pas rappelés ici.The advantages, aims and particular characteristics of this process being similar to those of the lighter which is the subject of the present invention, they are not repeated here.

BREVE DESCRIPTION DES FIGURESBRIEF DESCRIPTION OF THE FIGURES

D'autres avantages, buts et caractéristiques de la présente invention ressortent de la description qui suit faite, dans un but explicatif et nullement limitatif, en regard des dessins annexés, dans lesquels :

  • la figure 1 représente un schéma de principe des mesures,
  • les figures 2 à 4 représentent des courbes de la mesure de l'adhérence,
  • les figures 5 à 7 représentent des courbes de mesure du coefficient de frottement,
  • la figure 8 représente la construction de l'élément de protection.
Other advantages, aims and characteristics of the present invention emerge from the description which follows, given for explanatory purposes and in no way limiting, with reference to the appended drawings, in which:
  • the figure 1 represents a schematic diagram of the measurements,
  • the figures 2 to 4 represent curves of the grip measurement,
  • the Figures 5 to 7 represent curves of measurement of the coefficient of friction,
  • the figure 8 represents the construction of the protective element.

DESCRIPTION D'EXEMPLES DE REALISATION DE L'INVENTIONDESCRIPTION OF EXAMPLES OF EMBODIMENT OF THE INVENTION

La description suivante a pour but de démontrer la résistance et l'amélioration du touché du film protecteur par rapport à un film brillant et un film mat. Pour la suite, le film protecteur sera appelé film soft touch (« soft touch » marque déposée pour "touché doux" en français).The purpose of the following description is to demonstrate the resistance and the improvement in the feel of the protective film compared to a glossy film and a matt film. For the rest, the protective film will be called soft touch film ("soft touch" trademark for "soft touch" in French).

Le film protecteur comporte une pluralité de couches (multicouche) et comporte sur la dernière couche, dite couche extérieur, le film soft touch.The protective film comprises a plurality of layers (multilayer) and comprises on the last layer, called the outer layer, the soft touch film.

Le film soft touch testé correspond à l'élément protecteur dont l'épaisseur est de 47 µm.The soft touch film tested corresponds to the protective element whose thickness is 47 µm.

Le film brillant a une épaisseur est de 30 µm et le film mat a une épaisseur est de 20 µm.The glossy film has a thickness is 30 µm and the matt film has a thickness is 20 µm.

Les trois films comparés sont composés de l'association d'un film plastique adhésif imprimé opaque associé à un ou deux films transparents suivant les finitions.The three films compared are composed of the association of an opaque printed adhesive plastic film associated with one or two transparent films depending on the finishes.

Le protocole de mesure est le suivant et sert à effectuer la mesure de frottement et la mesure d'adhérence.The measurement protocol is as follows and is used to carry out the friction measurement and the adhesion measurement.

Le système utilisé permet de réaliser des mesures qualifiantes :

  • en terme sensoriel,
  • en terme de toucher orthogonal (aspect pégueux ou collant),
  • en terme de toucher tangentiel (glissant/bloquant), voire de rayure (transition déformation plastique/rayure).
The system used makes it possible to carry out qualifying measurements:
  • in sensory terms,
  • in terms of orthogonal touch (tacky or sticky appearance),
  • in terms of tangential touch (sliding / blocking), or even scratching (plastic deformation / scratching transition).

De plus, le système autorise, pour les matériaux transparents, une observation précise de l'aire de contact réelle indenteur/échantillon à l'aide d'un microscope inversé.In addition, the system allows, for transparent materials, a precise observation of the actual indentor / sample contact area using an inverted microscope.

La figure 1 représente un schéma de principe des mesures. Cette figure présente un indenteur 20, un échantillon 21 à tester et une caméra 22. L'indenteur est utilisé dans la technique de l'indentation pour mesure de la dureté d'un matériau.The figure 1 shows a block diagram of the measurements. This figure shows an indenter 20, a sample 21 to be tested and a camera 22. The indentor is used in the technique of indentation for measuring the hardness of a material.

Le système est constitué d'un banc de mesure dont les moteurs sont pilotés afin :

  • d'appliquer à l'échantillon un déplacement ou une force longitudinale,
  • de mettre en contact l'échantillon avec un antagoniste de contact,
  • d'observer l'aire de contact entre les deux surfaces en présence,
  • de qualifier la force normale et la force tangentielle résultante.
The system consists of a measurement bench whose motors are controlled in order to:
  • apply a longitudinal displacement or force to the sample,
  • putting the sample in contact with a contact antagonist,
  • observe the contact area between the two surfaces present,
  • to qualify the normal force and the resulting tangential force.

L'ensemble du système se caractérise par la mesure de force en fonction de déplacement dans des gammes qui démarrent de quelques milli Newtons allant jusqu'à cinquante newtons et avec une précision de déplacement micrométrique.The entire system is characterized by force measurement as a function of displacement in ranges which start from a few thousand Newtons up to fifty newtons and with micrometric displacement precision.

Cet appareil est destiné à mesurer des forces normales et/ou tangentielles appliquées à des échantillons via l'indenteur 20 en fonction d'un déplacement relatif, normal ou tangentiel.This device is intended to measure normal and / or tangential forces applied to samples via the indenter 20 as a function of a relative displacement, normal or tangential.

Tous les cycles sont pilotés par un même logiciel (Tribolog, marque déposée) et sont en mesure de réaliser plusieurs types de mesures en fonction des capteurs et des actionneurs en place sur la structure mécanique de base.All cycles are controlled by the same software (Tribolog, registered trademark) and are able to carry out several types of measurements depending on the sensors and actuators in place on the basic mechanical structure.

La motorisation de l'axe transversal ouvre la possibilité de réaliser des essais de frottement (tribomètre) ou des essais de rayures ainsi que des rampes de force transversale.The motorization of the transverse axis opens the possibility of carrying out friction tests (tribometer) or scratch tests as well as transverse force ramps.

Afin d'analyser le coté rugueux / râpeux des différents films une caractérisation de leur état de surface est réalisée.In order to analyze the rough / rough side of the different films, a characterization of their surface condition is carried out.

Pour que la caractérisation de l'état de surface en terme de toucher soit indépendante des différentes enductions en surfaces (couche transparente, primaire d'adhérence) une prise d'empreinte est réalisée sur chaque film.So that the characterization of the surface condition in terms of feel is independent of the different surface coatings (transparent layer, adhesion primer) an impression is taken on each film.

Ces empreintes sont ensuite cartographiées à l'aide d'un rugosimètre 3D à balayage.These footprints are then mapped using a 3D scanning roughness meter.

Le système est équipé d'un capteur optique sans contact. La cartographie est réalisée sur une surface de 1x1 mm avec un pas de 2 µm.The system is equipped with a contactless optical sensor. The mapping is performed on a 1x1 mm surface with a 2 µm step.

Le capteur utilisé présente une étendue de mesure de 200 µm avec une résolution verticale de 7nm ainsi qu'une taille de spot d'un diamètre de 2 µm.The sensor used has a measurement range of 200 µm with a vertical resolution of 7nm as well as a spot size with a diameter of 2 µm.

Les films sont préalablement découpés et collés sur une lame de verre (verre de microscope de laboratoire) pour chaque film et chaque type de mesure.The films are previously cut and glued onto a glass slide (laboratory microscope glass) for each film and each type of measurement.

Deux types d'analyse sont effectués : Two types of analysis are carried out :

  • une mesure de la force d'adhérence à l'aide d'une demi-sphère en silicone (RHODIA 4511, marque déposée) présentant un caractère pégeux suivant le protocole suivant :
    • ▪ profondeur d'indentation 500 µm,
    • ▪ force d'indentation équivalente (pour le silicone 4511) 60 mN,
    • ▪ temps de stabilisation avant décollement 60 secondes.
    • ▪ décollement.
    a measurement of the adhesion strength using a silicone hemisphere (RHODIA 4511, registered trademark) having a tacky character according to the following protocol:
    • ▪ indentation depth 500 µm,
    • ▪ equivalent indentation force (for silicone 4511) 60 mN,
    • ▪ stabilization time before takeoff 60 seconds.
    • ▪ detachment.
  • une mesure de frottement linéaire à l'aide d'un indenteur hémisphérique en silicone (RTC 141, marque déposée) de dureté shore 0 égale à 54, revêtu d'un tissu de nettoyage d'optique avec une force normale de1,5N sur une course de 10mm.a linear friction measurement using a hemispherical silicone indenter (RTC 141, registered trademark) of shore 0 hardness equal to 54, coated with an optical cleaning cloth with a normal force of 1.5N on a 10mm stroke.

Une caractérisation des états de surfaces des différentes finitions réalisées et résumées dans le tableau ci-dessous. critères Film brillant Film mat Film Soft touch unité Ra 0,21 0.57 0,55 microns Rsk 0,79 0,36 0.18 Rku 15,9 3,24 2,92 A characterization of the surface conditions of the various finishes produced and summarized in the table below. criteria Glossy film Matte film Soft touch film unit Ra 0.21 0.57 0.55 microns Rsk 0.79 0.36 0.18 Rku 15.9 3.24 2.92

Le critère Ra est la rugosité moyenne arithmétique du profil. Ra est utilisé comme une évaluation globale de l'amplitude de la rugosité du profil mais ne donne aucune information sur la répartition spatiale des irrégularités du profil ni de la forme du profil. Ra est utile pour des surfaces rugueuses aléatoires (stochastiques) usinées avec des outils ne laissant pas trop de marques sur la surface, telles que les surfaces sablées, fraisées ou polies.The criterion Ra is the arithmetic mean roughness of the profile. Ra is used as an overall assessment of the amplitude of the profile roughness but does not provide any information on the spatial distribution of the profile irregularities or the shape of the profile. Ra is useful for random rough surfaces (stochastic) machined with tools that do not leave too many marks on the surface, such as sanded, milled or polished surfaces.

Le critère Rsk est l'asymétrie du profil : asymétrie de la distribution des hauteurs. Ce paramètre est important car il renseigne sur la morphologie de l'état de surface. Une valeur négative de Rsk correspond à une surface présentant des pics et protubérances dépassant au-dessus de la surface, alors qu'une valeur positive correspond à une surface en plateau avec des rayures ou des pores profonds. C'est donc un paramètre important pour caractériser des fonctions de contact ou de lubrification. Ce paramètre ne dit rien en revanche de l'amplitude de la rugosité contrairement au Ra.The Rsk criterion is the asymmetry of the profile: asymmetry of the height distribution. This parameter is important because it provides information on the morphology of the surface condition. A negative value of Rsk corresponds to a surface with peaks and protrusions protruding above the surface, while a positive value corresponds to a plateau surface with stripes or deep pores. It is therefore an important parameter for characterizing contact or lubrication functions. This parameter, however, says nothing about the amplitude of the roughness, unlike Ra.

Le critère Rku est l'aplatissement du profil. Ce critère caractérise la largeur de la distribution des hauteurs.The criterion Rku is the flattening of the profile. This criterion characterizes the width of the height distribution.

On constate dans le tableau que la finition brillante présente une très faible rugosité.It can be seen in the table that the glossy finish has a very low roughness.

Les films mat et soft touch sont très proches voisins en terme d'amplitude.Matte and soft touch films are very close neighbors in terms of amplitude.

Les trois films présentent également une absence de grainage.The three films also have an absence of graining.

Compte tenu des valeurs mesurées en termes de toucher sensoriel le descripteur associé est lisse (et non rugueux/râpeux) quelque soit la finition réalisée.Given the values measured in terms of sensory touch, the associated descriptor is smooth (and not rough / rough) whatever the finish produced.

La figure 2 représente la mesure de l'adhérence pour le film brillant.The figure 2 represents the adhesion measurement for the glossy film.

La figure 3 représente la mesure de l'adhérence pour le film mat.The figure 3 represents the adhesion measurement for the matt film.

La figure 4 représente la mesure de l'adhérence pour le film soft touch.The figure 4 represents the grip measurement for the soft touch film.

Les différentes valeurs moyennes des deux essais tests de pégosité réalisés sur chaque échantillon sont regroupées dans le Tableau suivant : Film : Fa (mN) brillant 74,6 mat 67,6 soft touch 120,6 The different average values of the two tack tests carried out on each sample are grouped in the following table: Movie : Fa (mN) bright 74.6 mast 67.6 soft touch 120.6

On constate immédiatement que la finition soft touch se différencie nettement des deux autres finitions, en particulier de la finition matte présentant une rugosité de surface quasi similaire. Le film soft touch présente une pégosité presque deux fois supérieure aux autres.We immediately see that the soft touch finish is clearly different from the other two finishes, in particular the matte finish with an almost similar surface roughness. The soft touch film has a tack almost twice as high as the others.

La mesure du coefficient de frottement sec sur les différents films est présentée aux figures 5 à 7. La figure 5 représente une courbe de mesure du coefficient de frottement pour le film brillant. La figure 6 représente une courbe de mesure du coefficient de frottement pour le film mat. La figure 7 représente une courbe de mesure du coefficient de frottement pour le film soft touch. La référence F correspond au coefficient F statique.The measurement of the dry friction coefficient on the different films is presented to Figures 5 to 7 . The figure 5 represents a measurement curve of coefficient of friction for the glossy film. The figure 6 represents a curve for measuring the coefficient of friction for the matt film. The figure 7 represents a curve for measuring the coefficient of friction for the soft touch film. The reference F corresponds to the static coefficient F.

La mesure s'effectue en appliquant une charge normale constante de 1,5N et en déplaçant l'échantillon.The measurement is made by applying a constant normal load of 1.5N and moving the sample.

Sur la figure 5, le début de la courbe obtenue correspond à une mise en tension tangentielle entre l'indenteur et l'échantillon définissant la rampe de force initiale au commencement de la mesure.On the figure 5 , the start of the curve obtained corresponds to a tangential tensioning between the indenter and the sample defining the initial force ramp at the start of the measurement.

Lorsque cette force atteint le rapport Ft/Fn du coefficient de frottement statique échantillon/indenteur, il y a glissement relatif indenteur/échantillon jusqu'à atteindre la valeur (inférieure) du coefficient de frottement dynamique. L'ensemble oscille donc entre ces deux valeurs de coefficient de frottement. On observe alors un déplacement saccadé appelé stick-slip (stick-slip en terminologie anglo-saxonne ou « collé-glissé » en français).When this force reaches the ratio Ft / Fn of the coefficient of static friction sample / indentor, there is relative sliding indentor / sample until reaching the value (lower) of the dynamic coefficient of friction. The assembly therefore oscillates between these two values of coefficient of friction. We then observe a jerky displacement called stick-slip (stick-slip in English terminology or "glued-slipped" in French).

On constate, sur la figure 6, le même type de déplacement sur le film mat.We see, on the figure 6 , the same type of movement on the matt film.

Contrairement à la remarque précédente, sur le film soft touch l'absence de ce phénomène dans les mêmes conditions expérimentales (voir figure 7) se remarque immédiatement.Contrary to the previous remark, on the soft touch film the absence of this phenomenon under the same experimental conditions (see figure 7 ) is immediately noticeable.

Concernant les coefficients de frottement moyens, on constate (voir tableau suivant correspondant au frottement moyen) que ceux des films brillant et mat sont proches voisins et faibles alors que ceux du film « soft touch » est deux fois plus élevé. Film : Frottement moyen brillant 0,29 mat 0,26 soft touch 0,54 Concerning the average coefficients of friction, it can be seen (see following table corresponding to the average friction) that those of the glossy and matt films are close neighbors and weak whereas those of the “soft touch” film is twice higher. Movie : Medium friction bright 0.29 mast 0.26 soft touch 0.54

Les mesures effectuées permettent de différencier de manière pertinente les différents types de film.The measurements carried out make it possible to differentiate in a relevant way the different types of film.

Il ressort que le film protecteur avec le revêtement «soft touch» présente des caractéristiques très nettement différentes des autres films en terme de toucher orthogonal avec un coefficient de frottement deux fois plus élevé que les autres films analysés.It appears that the protective film with the “soft touch” coating has characteristics very clearly different from other films in terms of orthogonal touch with a coefficient of friction twice as high as the other films analyzed.

De plus, le film protecteur «soft touch» diminue le phénomène de stick-slip quand celui-ci est observé sur les autres films dans les mêmes conditions expérimentales.In addition, the “soft touch” protective film reduces the stick-slip phenomenon when it is observed on the other films under the same experimental conditions.

Une autre mesure est réalisée pour améliorer la protection du briquet : la résistance à la rayure.Another measure is taken to improve the protection of the lighter: scratch resistance.

Les conditions sont les suivantes : il est utilisé un stylet à rayer dont il possède une pointe sphérique de diamètre 1mm pouvant appliquer une force entre 0 et 30 N.The conditions are as follows: a scratching stylus is used of which it has a spherical tip with a diameter of 1 mm which can apply a force between 0 and 30 N.

L'essai est conduit sur le briquet décoré (avec les différentes versions de films possibles) à chaque charge définie, le stylet se déplace sur une distance comprise entre 40 et 50mm, à une vitesse d'environ 45mm/s.The test is conducted on the decorated lighter (with the different versions of films possible) at each defined load, the stylus moves over a distance between 40 and 50mm, at a speed of about 45mm / s.

Le résultat est interprété par les niveaux suivants :

  1. 1 - Aucune marque
  2. 2 - Présence d'un trait (légère déformation)
  3. 3 - Film abîmé, transpercé
  4. 4 - Film arraché
The result is interpreted by the following levels:
  1. 1 - No brand
  2. 2 - Presence of a line (slight deformation)
  3. 3 - Damaged, pierced film
  4. 4 - Film torn off

Le résultat est interprété selon le niveau d'observation ci-dessus après contrôle par microscope avec grossissement 8 fois. Force Brillant Mat Soft touch 1N 2 1 1 5N 3 2 1 20N 3 4 2 30N 4 4 2 The result is interpreted according to the level of observation above after control by microscope with 8-fold magnification. Strength bright Mast Soft touch 1N 2 1 1 5N 3 2 1 20N 3 4 2 30N 4 4 2

Le film soft touch a une résistance à la rayure vingt fois supérieure au film brillant et quatre fois supérieure au film mat. De plus à 30N la finition Soft Touch présente uniquement une déformation (présence d'un trait) alors que les deux autres films sont arrachés.The soft touch film has a scratch resistance twenty times greater than glossy film and four times greater than matt film. In addition, at 30N, the Soft Touch finish only exhibits deformation (presence of a line) while the other two films are torn off.

L'épaisseur des types de film est la suivante :

  • Film brillant : entre 20 à 70 µm.
  • Film mat : entre 20 à 70 µm.
  • Film soft : entre 25 à 200 µm.
The thickness of the film types is as follows:
  • Glossy film: between 20 to 70 µm.
  • Matt film: between 20 to 70 µm.
  • Soft film: between 25 to 200 µm.

La figure 8 représente la construction de l'élément de protection.The figure 8 represents the construction of the protective element.

Un rouleau de film support 23 est déroulé pour être assemblé avec le film protecteur 24. Une couche de matière adhésive 25 est disposée entre le film support 23 et le film protecteur 24. La flèche montre le sens de fabrication.A roll of support film 23 is unwound to be assembled with the protective film 24. A layer of adhesive material 25 is disposed between the support film 23 and the protective film 24. The arrow shows the direction of manufacture.

NOMENCLATURENOMENCLATURE

2020
indenteurindenter
2121
échantillonsample
2222
caméracamera
2323
film supportsupport film
2424
film protecteur extérieurouter protective film
2525
matière adhésiveadhesive material
2626
élément de protectionprotective element

Claims (13)

  1. Lighter comprising:
    - a lighter body comprising a fuel tank with a valve to release the fuel from it;
    - an assembly according to a piezoelectric, electric, or friction wheel which could be rotated by a user to produce sparks oriented over the fuel released from said valve, said friction wheel assembly being mounted on said lighter body with at least one portion of it exposed for handling and rotation by the user;
    - a valve actuator which could be lowered to actuate said valve and release said fuel;
    - a protective element (26) mounted on said lighter body, and composed of a plurality of layers and comprising an outer protective film (24) composed of a plastic film, characterised in that
    - the protective element (26) has a thickness of between 25 and 200µm and in that
    - on the plastic film is added, by coating, an aliphatic polyurethane layer of thickness of between 10 and 75µm, which contains between 30 and 100% of solid according to the softness-to-the-touch degree required.
  2. Lighter according to claim 1, wherein the outer protective film (24) comprises an adhesive material provided to hold the protective element (26) on the body of the lighter.
  3. Lighter according to claim 1, wherein the protective element (26) comprises a support film (23) positioned on a layer lower than the outer protective film (24), said support film (23) comprises a first face on which is added an adhesive material (25) to hold the outer protective film (24) on the support film (24).
  4. Lighter according to claim 3, wherein the support film (23) comprises a second face comprising an adhesive material provided to hold the outer protective film (24) on the body of the lighter.
  5. Lighter according to one of claims 1 to 4, wherein the protective element (26) has a thickness of between 30 and 60µm.
  6. Lighter according to one of claims 1 to 4, wherein the plastic film has a thickness of between 10 and 40µm.
  7. Lighter according to one of claims 3 to 4, wherein the support film (23) has a thickness of between 15 and 125µm.
  8. Lighter according to one of claims 1 to 4, wherein the friction coefficient of the outer protective film (24) is of between 0.40 and 0.70.
  9. Lighter according to one of claims 1 to 4, wherein the tack of the outer protective film (24) is of between 100 and 140mN.
  10. Lighter according to one of claims 1 to 4, wherein the protective element (26) comprises a retaining mechanism to resist the removal of said protective element (26) of the lighter body.
  11. Lighter according to one of claims 1 to 10, wherein the protective element (26) comprises a decorative zone.
  12. Lighter according to one of claims 1 to 11, wherein the protective element (26) is of the shape of a sleeve adapted to the shape of the lighter.
  13. Method for covering the body of the lighter according to one of claims 1 to 12, by means of an outer protective film (24).
EP16741606.4A 2015-07-20 2016-07-19 Lighter and method for lining such a lighter with a protective element Active EP3325885B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR1556869A FR3039252B1 (en) 2015-07-20 2015-07-20 LIGHTER AND METHOD OF BURNING THE BODY OF A LIGHTER BY MEANS OF A PROTECTIVE MEMBER
FR1558388A FR3039253B1 (en) 2015-07-20 2015-09-10 LIGHTER AND METHOD OF BURNING THE BODY OF A LIGHTER BY MEANS OF A PROTECTIVE MEMBER
PCT/EP2016/067118 WO2017013089A2 (en) 2015-07-20 2016-07-19 Lighter and method for lining the body of a lighter with a protective element

Publications (2)

Publication Number Publication Date
EP3325885A2 EP3325885A2 (en) 2018-05-30
EP3325885B1 true EP3325885B1 (en) 2020-01-01

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EP16741606.4A Active EP3325885B1 (en) 2015-07-20 2016-07-19 Lighter and method for lining such a lighter with a protective element

Country Status (5)

Country Link
US (1) US10465906B2 (en)
EP (1) EP3325885B1 (en)
ES (1) ES2780368T3 (en)
FR (2) FR3039252B1 (en)
WO (1) WO2017013089A2 (en)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1782087B1 (en) * 1968-07-17 1972-05-25 Maltner Heinrich Gmbh GAS LIGHTER WITH A BURNER
JPS5682322A (en) * 1979-12-10 1981-07-06 Tokai:Kk Valve device for gas lighter
DE8408596U1 (en) * 1984-03-21 1984-06-14 Lamprecht, Gerhard, 6367 Karben POCKET LIGHTER
DE8807488U1 (en) * 1988-06-09 1988-09-22 Lucciardello, Salvatore, 7260 Calw Case for disposable lighters
US4956227A (en) * 1988-11-16 1990-09-11 Nippon Sheet Glass Co., Ltd. Laminated structure
US7048651B2 (en) * 1998-10-06 2006-05-23 Callaway Golf Company Golf Ball
BG105705U (en) * 2001-07-16 2001-12-31 Аксон Бьлгария ООД Casing of a lighter
JP2006113588A (en) * 2004-10-13 2006-04-27 Schott Ag Beam shaping composite
US20120129631A1 (en) * 2009-03-13 2012-05-24 Sullivan Michael J Golf balls having translucent covers formed of aromatic and aliphatic polyurethanes
US20170065855A1 (en) * 2009-03-13 2017-03-09 Acushnet Company Golf balls having multi-layered covers based on castable thermoplastic polyurethanes

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
FR3039252B1 (en) 2017-09-01
FR3039253B1 (en) 2017-12-29
WO2017013089A2 (en) 2017-01-26
FR3039252A1 (en) 2017-01-27
US20180216821A1 (en) 2018-08-02
ES2780368T3 (en) 2020-08-25
EP3325885A2 (en) 2018-05-30
FR3039253A1 (en) 2017-01-27
WO2017013089A3 (en) 2017-03-16
US10465906B2 (en) 2019-11-05

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