EP1532005A1 - Pyrographic device - Google Patents

Pyrographic device

Info

Publication number
EP1532005A1
EP1532005A1 EP03760768A EP03760768A EP1532005A1 EP 1532005 A1 EP1532005 A1 EP 1532005A1 EP 03760768 A EP03760768 A EP 03760768A EP 03760768 A EP03760768 A EP 03760768A EP 1532005 A1 EP1532005 A1 EP 1532005A1
Authority
EP
European Patent Office
Prior art keywords
pyrography
tip
heating
fan
protective cage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP03760768A
Other languages
German (de)
French (fr)
Inventor
Mathias D'estais
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Heller SA
Original Assignee
Heller SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Heller SA filed Critical Heller SA
Publication of EP1532005A1 publication Critical patent/EP1532005A1/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44B—MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
    • B44B7/00—Machines, apparatus or hand tools for branding, e.g. using radiant energy such as laser beams
    • B44B7/02—Branding irons

Definitions

  • the present invention relates to a device for pyrography. It applies in particular, but not exclusively, to woodburners for children; pyrography being considered as an activity of awakening or for the intellectual and artistic development of the child.
  • Pyrography consists of heating a metal point and bringing this point into contact with a material so that the latter, under the action of the heated point, burns or chars. Pyrography is often practiced by children because this practical exercise is considered to be particularly formative for children.
  • pyrography is generally practiced by children, it is advisable to provide a maximum of safety system in order to avoid that the body of the children and any other flammable material can be put in contact with the heating point.
  • the tips of pyrography devices are on average brought to a temperature close to 400 ° Celsius, and certain connecting pieces commonly reach 150 degrees Celcius.
  • Inertia pyrographs work on the same principle as a soldering iron, that is to say by electric heating of the tip of the pyrograveur.
  • the tip of the pyrography device has a temperature close to 400 ° Celsius.
  • Filament pyrographers generally use a Tungsten filament.
  • the Tungsten material is heated by the passage of an electric current, substantially identical to a conventional light bulb; the tip heating under the action of this electric current.
  • the tip of the pyrography device has a temperature often close to 450 ° Celsius.
  • any material having a high resistivity to current as well as a relatively high melting point is likely to constitute the material of the tip of a pyrograveur.
  • the invention therefore aims to remedy these drawbacks.
  • a device for pyrography comprising a substantially elongated envelope so that it can be grasped by a user, comprising at one of its ends a wired connection for supplying electrical energy, and at the other end a heating point, characterized in that it comprises a protective cage surrounding said point so that only its end is protruding out of said cage and in that it comprises a press button acting to advance the heating point out of the protective cage or, on the contrary, for bringing said point inside the protective cage.
  • the protective cage will have a frustoconical shape.
  • This protective cage will ideally be made of plastic, for example thermoplastic or thermosetting.
  • the envelope of the device for pyrography will further comprise a fan arranged in the direction of the above point so as to blow air towards the outside of said device; the blown or expelled air passing between the point and the inner wall of the said protective cage.
  • the envelope will further comprise at least one motor, for example an electric motor supplied with electric energy via the above-mentioned electric connection, connected to the fan.
  • the outside atmospheric air, coming from the open end in which the heating tip is located, is sucked in by the rotation of the fan.
  • the recooling of the heating tip and hot parts is then comparable to the variant described in the previous paragraph.
  • the fumes can then be evacuated by an exhaust duct, located opposite the heating tip, or further removed by 1 through a flexible pipe.
  • the motor and the fan are deported outside the above-mentioned envelope in order in particular to lighten the pyrography device, the ventilated air then circulating between the fan and said device at across a pipe.
  • the device for pyrography will include a press button controlling the stopping or starting of said device, that is to say the heating or stopping of the heating of the aforesaid tip.
  • the press button when placed in the stop position of said device, commands the fan to rotate more quickly, so that the tip cools quickly.
  • the device for pyrography will also include a pilot lamp, or operating lamp, indicating the operating state or not of said device.
  • this lamp can for example be lit green when the press button is in the "off" position of the device for pyrography and red in color when the press button is in the "on" position of said device.
  • the press button will consist of a control device acting to advance the point out of the protective cage or, on the contrary, fit inside said cage.
  • the invention makes it possible, thanks to its internal ventilation system, to maintain a temperature which does not exceed 35 ° Celsius over all the accessible areas of the device for pyrography, except for the functional tip.
  • the versions of the prior art have a gripping body temperature greater than 50 ° Celsius.
  • Figure 1 shows a schematic view of a device for pyrography according to the invention
  • FIG. 2 is an exploded view comprising all of the elements making up an embodiment of another device according to the invention.
  • Figure 3 is a sectional view of the device for pyrography, assembled and mounted, shown in Figure 2;
  • the device for pyrography 1, shown in FIG. 1, conventionally comprises an elongated or oblong envelope 2, advantageously having an adapted, or ergonomic, shape to hold in one hand a user, not shown in the various figures.
  • This envelope 2 has two parts 3 and 4.
  • the first part 3 consists of a wire guide 5 of substantially frustoconical shape intended to guide electrical wires 6 sheathed in insulating plastic inside the envelope 2.
  • the wire guide 5 makes it possible to maintain the electrical wire connection 6 at a distance from the point 12 and lightens the handling by facilitating the movement of the wire 6.
  • the heating device for the heating tip 12 operates here in a conventional manner.
  • the device for pyrography 1 is supplied with electrical energy via at least one wired connection 6, in this case said device is connected to the mains.
  • the device for pyrography 1 is supplied with electrical energy via at least one wired connection 6, in this case said device is connected to the mains.
  • a fan 7, of suitable shape and size, is housed inside the above-mentioned envelope 2.
  • This fan 7 is constituted by a propeller 8 whose blades are oriented in the direction opposite to the above-mentioned wire guide 5, that is to say that when the fan 7 is running, it expels or blows air in the direction of the heating tip, situated opposite the above-mentioned first part 3.
  • the fan 7 operates here thanks to an electric motor 9 supplied with electric energy via the above-mentioned wired link 6.
  • the fan 7 makes it possible to disperse the fumes which are aggressive to the eyes, to limit the heating of the peripheral zones of the heating tip, such as the casing 2 or the guard device 10 provided to secure the gripping of the device for the pyrography 1.
  • the second part 4 of the envelope 2 has a generally cylindrical appearance. This second part 4 is intended to receive a hand from a user, thus its shape is chosen to best fit the contours of a hand grasping the second part 4 constituting the gripping part of the device for pyrography 1.
  • the second part 4 of the casing 2 also comprises a press button 11 for switching on or off the heating of the heating tip 12 of the device according to the invention.
  • the press button 11 is used to energize the heating tip 12; this action being controlled by a voluntary act of the user so that the tip 12 does not heat until the latter actually wants to burn.
  • This press button system 11 makes it possible to limit the heating to the real time of use.
  • the press button 11 secures for the user the operation of the device for pyrography 1 as well as its operation for the surroundings, avoiding the risks of untimely burns.
  • the free end of the second part 4 is here delimited by a guard device 10 consisting of a circular protuberance which prevents the hand of the user from sliding towards the hot zone, that is to say the heating tip 12. Furthermore, thanks to this guard device as well as to the ergonomics of the envelope 2 of the device, the user can take hold of the device according to the invention near the heating tip 12 so to obtain good precision in the work he performs.
  • the guard device 10 comprises a control lamp 13, or operating lamp, which lights up for example in green when the tip 12 is cold or when the device for pyrography 1 is not in use and in red when the tip 12 is still hot or the device is in service. Thanks to this lighting, the entourage is aware of whether or not it must approach or handle the device for pyrography 1 with care.
  • the protective cage 14 is in frustoconical form and is made of plastic, for example a conventional thermoplastic obtained by molding. This protective cage 14 protects the user or his comrades from any contact with the hot zone by leaving only the end of the heating tip 12 for etching. Furthermore, by limiting access to the etching point 12, this device makes it possible to avoid the risk of fire.
  • the casing 2 consists of two complementary shells 15 and 16, one lower 15 and the other upper 16. Near the interior walls of these two shells 15, 16 are respectively find at least one contact blade 17 for the passage and transmission of electrical energy.
  • the above witness lamp 13 is here placed near the protective cage 14.
  • the device for pyrography 1 is, of course, equipped with a heating tip 12 housed inside the aforesaid protective cage 14; the end of the heating tip 12 being protruding out of said cage 14.
  • the device for pyrography comprises a mechanical press button mechanism comprising a control button 18 or press button, a lever 19, a carriage 20, connection supports 21 in which the inner end of the heating tip 12 is trapped, as well as a spring 22.
  • a control button 18 or press button When the user presses the control button 18, the latter engages the advance of the connection supports 21 so that the end of the heating tip 12 comes out of the protective cage 14.
  • the connection supports 21 move towards the interior of the casing 2 so that the end of the heating tip 12 is replaced inside the protective cage 14, without leaving any part of the protruding tip 12 outside of said cage 14.
  • the user must keep the control button 18 pressed so that if he withdraws, or releases, the finger or the hand serving to hold the press-button mechanism, the latter again engages the tip.
  • heater 12 inside the protective cage 14.
  • the fan 7 starts to vacuum or expelling the surrounding air more quickly so as to accelerate the cooling rate of the heating tip 12. In this way, the user can be more concentrated on his work because he does not have to be concentrated, or vigilant, to ensure his own safety.
  • the preceding description presents the operations specific to a filament pyrography device.
  • the principles described can be transposed to an inertia pyrography device with regard to the presence of the protective cage, the fan, and the press button triggering the extraction of the heating tip.

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  • Thermotherapy And Cooling Therapy Devices (AREA)
  • Electric Connection Of Electric Components To Printed Circuits (AREA)

Abstract

The invention concerns a pyrographic device (1), comprising a housing (2) substantially elongated so that it can be gripped by a user, including at one of its ends a wire connection (6) for supplying electric power, and at the other end a heating tip (12). The invention is characterized in that it comprises a protective case (14) enclosing said tip (12) such that only its tip protrudes outside said case (14).

Description

DISPOSITIF POUR LA PYROGRAVURE DEVICE FOR PYROGRAVING
La présente invention concerne un dispositif pour la pyrogravure. Elle s'applique notamment, mais non exclusivement, aux pyrograveurs sur bois destinés aux enfants ; la pyrogravure étant considérée comme une activité d'éveil ou pour le développement intellectuel et artistique de l'enfant.The present invention relates to a device for pyrography. It applies in particular, but not exclusively, to woodburners for children; pyrography being considered as an activity of awakening or for the intellectual and artistic development of the child.
Le concept de la pyrogravure consiste à chauffer une pointe métallique et à mettre en contact cette pointe avec une matière de sorte que cette dernière, sous l'action de la pointe chauffée, brûle ou se carbonise. La pyrogravure est souvent pratiquée par les enfants car cet exercice pratique est considéré comme particulièrement formateur pour les enfants .The concept of pyrography consists of heating a metal point and bringing this point into contact with a material so that the latter, under the action of the heated point, burns or chars. Pyrography is often practiced by children because this practical exercise is considered to be particularly formative for children.
Bien entendu, dans la mesure où la pyrogravure est généralement pratiquée par des enfants, il convient de prévoir un maximum de système de sécurité afin d'éviter que le corps des enfants et tout autre matériau inflammable puisse être mis en contact avec la pointe chauffante. En effet, les pointes des appareils de pyrogravure sont en moyenne portées à une température voisine de 400° Celsius, et certaines pièces de liaisons atteignent couramment 150 degrés Celcius.Of course, since pyrography is generally practiced by children, it is advisable to provide a maximum of safety system in order to avoid that the body of the children and any other flammable material can be put in contact with the heating point. Indeed, the tips of pyrography devices are on average brought to a temperature close to 400 ° Celsius, and certain connecting pieces commonly reach 150 degrees Celcius.
On trouve à 1 ' heure actuelle sur le marché deux types d'appareils de pyrogravure, les pyrograveurs à inertie et les pyrograveurs à filament.There are currently two types of pyrography devices on the market, inertial pyrogravants and filament pyrogravers.
Les pyrograveurs à inertie fonctionnent sur le même principe qu'un fer à souder, c'est-à-dire par chauffage électrique de la pointe du pyrograveur. Dans ce cas, la pointe de l'appareil de pyrogravure présente une température voisine de 400° Celsius.Inertia pyrographs work on the same principle as a soldering iron, that is to say by electric heating of the tip of the pyrograveur. In this In this case, the tip of the pyrography device has a temperature close to 400 ° Celsius.
Les pyrograveurs à filament utilisent généralement un filament en Tungstène. Le matériau en Tungstène est chauffé par le passage d'un courant électrique, sensiblement à l'identique d'une ampoule électrique classique ; la pointe chauffant sous l'action de ce courant électrique. Dans ce cas, la pointe de l'appareil de pyrogravure présente une température souvent voisine de 450° Celsius.Filament pyrographers generally use a Tungsten filament. The Tungsten material is heated by the passage of an electric current, substantially identical to a conventional light bulb; the tip heating under the action of this electric current. In this case, the tip of the pyrography device has a temperature often close to 450 ° Celsius.
En fait, n'importe quel matériau présentant une résistivité importante au courant ainsi qu'un point de fusion relativement élevé est susceptible de constituer le matériau de la pointe d'un pyrograveur.In fact, any material having a high resistivity to current as well as a relatively high melting point is likely to constitute the material of the tip of a pyrograveur.
À titre illustratif d'un dispositif de pyrogravure classique, on connaît dans l'art antérieur le brevet US 2101913 qui décrit une pointe chauffante apte à être rétractée à l'intérieur du dispositif de pyrogravure ; le fait de rentrer la pointe chauffante permettant au pyrograveur de chauffer la pointe. Ainsi, il n'existe dans ce type de système aucun système de protection pour éviter que l'utilisateur ne se brûle au contact de la pointe chauffante.As an illustration of a conventional pyrography device, the prior art discloses US patent 2101913 which describes a heating tip capable of being retracted inside the pyrography device; retracting the heating tip allowing the woodburner to heat the tip. Thus, there is no protection system in this type of system to prevent the user from getting burned on contact with the heating tip.
Ainsi, les appareils de pyrogravure actuels présentent un certain nombre d'inconvénients. En effet, ces appareils, qui ne prévoient aucun système de protection adapté, représentent un danger potentiellement très élevé, en particulier pour des enfants. De plus, il n'existe à l'heure actuelle aucun système signalant l'état de fonctionnement de l'appareil de pyrogravure. O 2004/000576Thus, current pyrography devices have a number of drawbacks. These devices, which do not provide any suitable protection system, represent a potentially very high danger, in particular for children. In addition, there is currently no system indicating the operating status of the pyrography device. O 2004/000576
L'invention a donc pour but de remédier à ces inconvénients. Elle propose à cet effet un dispositif pour la pyrogravure comprenant une enveloppe sensiblement allongée de sorte qu'elle soit préhensible par un utilisateur, comportant à l'une de ses extrémités une connexion filaire pour apporter de l'énergie électrique, et à l'autre extrémité une pointe chauffante, caractérisé en ce qu'il comprend une cage de protection entourant ladite pointe de sorte que seule son extrémité soit protubérante hors de ladite cage et en ce qu'il comprend un bouton pressoir agissant pour faire avancer la pointe chauffante hors de la cage de protection ou au contraire pour faire rentrer ladite pointe à l'intérieur de la cage de protection.The invention therefore aims to remedy these drawbacks. To this end, it provides a device for pyrography comprising a substantially elongated envelope so that it can be grasped by a user, comprising at one of its ends a wired connection for supplying electrical energy, and at the other end a heating point, characterized in that it comprises a protective cage surrounding said point so that only its end is protruding out of said cage and in that it comprises a press button acting to advance the heating point out of the protective cage or, on the contrary, for bringing said point inside the protective cage.
Avantageusement, la cage de protection présentera une forme tronconique . Cette cage de protection sera idéalement réalisée en plastique, par exemple en thermoplastique ou en thermodurcissable.Advantageously, the protective cage will have a frustoconical shape. This protective cage will ideally be made of plastic, for example thermoplastic or thermosetting.
Selon une possibilité offerte par l'invention, l'enveloppe du dispositif pour la pyrogravure comprendra en outre un ventilateur disposé en direction de la susdite pointe de manière à souffler de l'air vers l'extérieur dudit dispositif ; l'air soufflé, ou expulsé, passant entre la pointe et la paroi intérieure de la susdite cage de protection. Ainsi, l'enveloppe comprendra en outre au moins un moteur, par exemple un moteur électrique alimenté en énergie électrique via la susdite connexion électrique, relié au ventilateur.According to a possibility offered by the invention, the envelope of the device for pyrography will further comprise a fan arranged in the direction of the above point so as to blow air towards the outside of said device; the blown or expelled air passing between the point and the inner wall of the said protective cage. Thus, the envelope will further comprise at least one motor, for example an electric motor supplied with electric energy via the above-mentioned electric connection, connected to the fan.
Selon un autre mode d'exécution de l'invention, l'air atmosphérique extérieur, provenant de l'extrémité ouverte dans laquelle se situe la pointe chauffante, est aspiré par la rotation du ventilateur. Le refroidissement de la pointe chauffante et des parties chaudes est alors comparable à la variante d'exécution décrite dans le paragraphe précédent. Les fumées peuvent alors être évacuées par un conduit d'échappement, situé à l'opposé de la pointe chauffante, ou bien déporté plus loin par 1 ' intermédiaire d ' un tuyau souple .According to another embodiment of the invention, the outside atmospheric air, coming from the open end in which the heating tip is located, is sucked in by the rotation of the fan. The recooling of the heating tip and hot parts is then comparable to the variant described in the previous paragraph. The fumes can then be evacuated by an exhaust duct, located opposite the heating tip, or further removed by 1 through a flexible pipe.
Selon un autre mode d'exécution de l'invention, le moteur et le ventilateur sont déportés à l'extérieur de la susdite enveloppe afin notamment d'alléger le dispositif de pyrogravure, l'air ventilé circulant alors entre le ventilateur et ledit dispositif au travers d'un tuyau.According to another embodiment of the invention, the motor and the fan are deported outside the above-mentioned envelope in order in particular to lighten the pyrography device, the ventilated air then circulating between the fan and said device at across a pipe.
De préférence, le dispositif pour la pyrogravure comprendra un bouton-pressoir commandant l'arrêt ou la mise en marche dudit dispositif, c'est-à-dire la chauffe ou l'arrêt de la chauffe de la susdite pointe.Preferably, the device for pyrography will include a press button controlling the stopping or starting of said device, that is to say the heating or stopping of the heating of the aforesaid tip.
Selon un mode d'exécution du dispositif selon l'invention, le bouton-pressoir, lorsqu'il est placé en position d'arrêt dudit dispositif, commande au ventilateur de tourner plus rapidement, de sorte que la pointe refroidisse rapidement.According to one embodiment of the device according to the invention, the press button, when placed in the stop position of said device, commands the fan to rotate more quickly, so that the tip cools quickly.
Avantageusement, le dispositif pour la pyrogravure comprendra également une lampe témoin, ou lampe de fonctionnement, indiquant l'état de fonctionnement ou non dudit dispositif. Ainsi, cette lampe pourra par exemple être allumée de couleur verte lorsque le bouton-pressoir est en position "arrêt" du dispositif pour la pyrogravure et de couleur rouge lorsque le bouton-pressoir est en position "marche" dudit dispositif.Advantageously, the device for pyrography will also include a pilot lamp, or operating lamp, indicating the operating state or not of said device. Thus, this lamp can for example be lit green when the press button is in the "off" position of the device for pyrography and red in color when the press button is in the "on" position of said device.
De préférence, le bouton-pressoir consistera en un dispositif de commande agissant pour faire avancer la pointe hors de la cage de protection ou au contraire faire rentrer à l'intérieur de ladite cage.Preferably, the press button will consist of a control device acting to advance the point out of the protective cage or, on the contrary, fit inside said cage.
Grâce à ces particularités, l'invention permet, grâce à son système de ventilation interne de conserver une température qui n'excède pas 35° Celsius sur toutes les zones accessibles du dispositif pour la pyrogravure, hormis la pointe fonctionnelle. Les versions de l'art antérieur présentent une température du corps de préhension supérieur à 50° Celsius.Thanks to these features, the invention makes it possible, thanks to its internal ventilation system, to maintain a temperature which does not exceed 35 ° Celsius over all the accessible areas of the device for pyrography, except for the functional tip. The versions of the prior art have a gripping body temperature greater than 50 ° Celsius.
On comprendra mieux l'invention à l'aide de la description, faite ci-après à titre purement explicatif, d'exemples de dispositif pour la pyrogravure selon l'invention, en référence aux figures annexées :The invention will be better understood with the aid of the description, given below for purely explanatory purposes, of examples of a device for pyrography according to the invention, with reference to the appended figures:
la figure 1 représente une vue schématique d'un dispositif pour la pyrogravure selon l'invention ;Figure 1 shows a schematic view of a device for pyrography according to the invention;
- la figure 2 est une vue éclatée comportant l'ensemble des éléments composant un mode de réalisation d'un autre dispositif selon l'invention ;- Figure 2 is an exploded view comprising all of the elements making up an embodiment of another device according to the invention;
La figure 3 est une vue en coupe du dispositif pour la pyrogravure, assemblé et monté, représenté sur la figure 2 ;Figure 3 is a sectional view of the device for pyrography, assembled and mounted, shown in Figure 2;
- La figure 4 en une vue latérale du dispositif représenté sur la figure 3 ;- Figure 4 in a side view of the device shown in Figure 3;
Le dispositif pour la pyrogravure 1, représenté sur la figure 1, comprend classiquement une enveloppe 2 allongée, ou oblongue, présentant avantageusement une forme adaptée, ou ergonomique, pour tenir dans une main d'un utilisateur, non représenté sur les différentes figures. Cette enveloppe 2 présente deux parties 3 et 4.The device for pyrography 1, shown in FIG. 1, conventionally comprises an elongated or oblong envelope 2, advantageously having an adapted, or ergonomic, shape to hold in one hand a user, not shown in the various figures. This envelope 2 has two parts 3 and 4.
La première partie 3 est constituée d'un guide- fil 5 de forme sensiblement tronconique destiné à guider des fils électriques 6 gainés de plastique isolant à l'intérieur de l'enveloppe 2. Le guide-fil 5 permet de maintenir la liaison filaire électrique 6 à distance de la pointe 12 et allège la manipulation en facilitant le déplacement du fil 6.The first part 3 consists of a wire guide 5 of substantially frustoconical shape intended to guide electrical wires 6 sheathed in insulating plastic inside the envelope 2. The wire guide 5 makes it possible to maintain the electrical wire connection 6 at a distance from the point 12 and lightens the handling by facilitating the movement of the wire 6.
Il est à noter que le dispositif de chauffe de la pointe chauffante 12 fonctionne ici de manière classique.It should be noted that the heating device for the heating tip 12 operates here in a conventional manner.
Ainsi, le dispositif pour la pyrogravure 1 est alimenté en énergie électrique via au moins une liaison filaire 6, en l'occurrence ledit dispositif est relié au secteur. Néanmoins, on pourrait éventuellement prévoir l'utilisation d'un autre moyen de génération ou de stockage d'énergie électrique de manière à proposer un dispositif autonome et indépendant pour la pyrogravure, par exemple une batterie ou une pile.Thus, the device for pyrography 1 is supplied with electrical energy via at least one wired connection 6, in this case said device is connected to the mains. However, one could possibly provide for the use of another means of generating or storing electrical energy so as to provide an autonomous and independent device for pyrography, for example a battery.
Dans l'exemple choisi pour illustrer l'invention, un ventilateur 7, de forme et de taille adaptées , est logé à 1 ' intérieur de la susdite enveloppe 2. Ce ventilateur 7 est constitué par une hélice 8 dont les pâles sont orientés dans la direction opposée au susdit guide-fil 5, c'est-à-dire que lorsque le ventilateur 7 est en marche, il expulse ou souffle de l'air en direction de la pointe chauffante, située à l'opposée de la susdite première partie 3. Le ventilateur 7 fonctionne ici grâce à un moteur électrique 9 alimenté en énergie électrique via la susdite liaison filaire 6. O 2004/000576In the example chosen to illustrate the invention, a fan 7, of suitable shape and size, is housed inside the above-mentioned envelope 2. This fan 7 is constituted by a propeller 8 whose blades are oriented in the direction opposite to the above-mentioned wire guide 5, that is to say that when the fan 7 is running, it expels or blows air in the direction of the heating tip, situated opposite the above-mentioned first part 3. The fan 7 operates here thanks to an electric motor 9 supplied with electric energy via the above-mentioned wired link 6. O 2004/000576
Le ventilateur 7 permet de disperser les fumées agressives pour les yeux, de limiter 1 ' échauffement des zones périphériques de la pointe chauffante, tels que l'enveloppe 2 ou le dispositif de garde 10 prévu pour sécuriser la préhension du dispositif pour la pyrogravure 1.The fan 7 makes it possible to disperse the fumes which are aggressive to the eyes, to limit the heating of the peripheral zones of the heating tip, such as the casing 2 or the guard device 10 provided to secure the gripping of the device for the pyrography 1.
La deuxième partie 4 de l'enveloppe 2 présente une allure générale cylindrique. Cette deuxième partie 4 est destinée à recevoir une main d'un utilisateur, ainsi sa forme est choisie pour épouser au mieux les contours d'une main saisissant la deuxième partie 4 constituant la partie de préhension du dispositif pour la pyrogravure 1.The second part 4 of the envelope 2 has a generally cylindrical appearance. This second part 4 is intended to receive a hand from a user, thus its shape is chosen to best fit the contours of a hand grasping the second part 4 constituting the gripping part of the device for pyrography 1.
La deuxième partie 4 de 1 ' enveloppe 2 comprend également un bouton-pressoir 11 de mise en marche ou d'arrêt de la chauffe de la pointe chauffante 12 du dispositif selon l'invention. Ainsi, dans ce dispositif, le bouton-pressoir 11 sert à la mise sous tension de la pointe chauffante 12 ; cette action étant commandée par un acte volontaire de l'utilisateur de sorte que la pointe 12 ne chauffe que lorsque ce dernier souhaite effectivement graver. Ce système de bouton-pressoir 11 permet de limiter la chauffe au temps réel d'utilisation.The second part 4 of the casing 2 also comprises a press button 11 for switching on or off the heating of the heating tip 12 of the device according to the invention. Thus, in this device, the press button 11 is used to energize the heating tip 12; this action being controlled by a voluntary act of the user so that the tip 12 does not heat until the latter actually wants to burn. This press button system 11 makes it possible to limit the heating to the real time of use.
Par ailleurs, le bouton-pressoir 11 sécurise pour l'utilisateur le fonctionnement du dispositif pour la pyrogravure 1 ainsi que son fonctionnement pour l'entourage en évitant les risques de brûlures intempestives.Furthermore, the press button 11 secures for the user the operation of the device for pyrography 1 as well as its operation for the surroundings, avoiding the risks of untimely burns.
L ' extrémité libre de la deuxième partie 4 est ici délimitée par un dispositif de garde 10 consistant en une protubérance circulaire qui empêche le glissement de la main de l'utilisateur vers la zone de chaude, c'est-à-dire la pointe chauffante 12. Par ailleurs, grâce à ce dispositif de garde ainsi qu'à l'ergonomie de l'enveloppe 2 du dispositif, l'utilisateur peut se saisir du dispositif selon 1 ' invention à proximité de la pointe chauffante 12 de manière à obtenir une bonne précision dans le travail qu ' il exécute.The free end of the second part 4 is here delimited by a guard device 10 consisting of a circular protuberance which prevents the hand of the user from sliding towards the hot zone, that is to say the heating tip 12. Furthermore, thanks to this guard device as well as to the ergonomics of the envelope 2 of the device, the user can take hold of the device according to the invention near the heating tip 12 so to obtain good precision in the work he performs.
Sur la figure 1, le dispositif de garde 10 comprend une lampe témoin 13, ou lampe de fonctionnement, qui s ' allume par exemple en vert lorsque la pointe 12 est froide ou que le dispositif pour la pyrogravure 1 n'est pas en service et en rouge lorsque la pointe 12 est encore chaude ou que le dispositif est en service. Grâce à cet éclairage, l'entourage a connaissance du fait qu'il doit ou non s ' approcher ou manipuler le dispositif pour la pyrogravure 1 avec précaution.In FIG. 1, the guard device 10 comprises a control lamp 13, or operating lamp, which lights up for example in green when the tip 12 is cold or when the device for pyrography 1 is not in use and in red when the tip 12 is still hot or the device is in service. Thanks to this lighting, the entourage is aware of whether or not it must approach or handle the device for pyrography 1 with care.
À la suite du dispositif de garde 10 se trouve une cage de protection 14. La cage de protection 14 se présente sous forme tronconique et est en matière plastique, par exemple un thermoplastique usuel obtenu par moulage. Cette cage de protection 14 protège l'utilisateur ou ses camarades de tout contact avec la zone chaude en ne laissant sortir que l'extrémité de la pointe chauffante 12 pour la gravure. Par ailleurs, en limitant l'accès à la pointe de gravure 12, ce dispositif permet d'éviter les risques d'incendie.Following the guard device 10 is a protective cage 14. The protective cage 14 is in frustoconical form and is made of plastic, for example a conventional thermoplastic obtained by molding. This protective cage 14 protects the user or his comrades from any contact with the hot zone by leaving only the end of the heating tip 12 for etching. Furthermore, by limiting access to the etching point 12, this device makes it possible to avoid the risk of fire.
Dans l'exemple choisi pour illustrer l'invention, l'enveloppe 2 est constituée de deux coques complémentaires 15 et 16, l'une inférieure 15 et l'autre supérieure 16. À proximité des parois intérieures de ces deux coques 15, 16 se trouvent respectivement au moins une lame de contact 17 pour le passage et la transmission de l'énergie électrique. La susdite lampe témoin 13 est ici placée à proximité de la cage de protection 14.In the example chosen to illustrate the invention, the casing 2 consists of two complementary shells 15 and 16, one lower 15 and the other upper 16. Near the interior walls of these two shells 15, 16 are respectively find at least one contact blade 17 for the passage and transmission of electrical energy. The above witness lamp 13 is here placed near the protective cage 14.
Le dispositif pour la pyrogravure 1 est, bien entendu, équipé d'une pointe chauffante 12 logée à l'intérieur de la susdite cage de protection 14 ; l'extrémité de la pointe chauffante 12 étant protubérante hors de ladite cage 14.The device for pyrography 1 is, of course, equipped with a heating tip 12 housed inside the aforesaid protective cage 14; the end of the heating tip 12 being protruding out of said cage 14.
Le dispositif pour la pyrogravure 1, illustré sur la figure 2, comprend ici un mécanisme mécanique de bouton-pressoir comportant un bouton de commande 18 ou bouton-pressoir, un levier 19, un chariot 20, des supports de connexion 21 dans lesquels l'extrémité intérieure de la pointe chauffante 12 est prisonnière, ainsi qu'un ressort 22. Lorsque l'utilisateur appuie sur le bouton de commande 18, ce dernier enclenche l'avancée des supports de connexion 21 de sorte que l'extrémité de la pointe chauffante 12 sort de la cage de protection 14. De la même manière, lorsque l'utilisateur appuie à nouveau sur le bouton de commande 18, les supports de connexion 21 se déplacent vers 1 ' intérieur de 1 ' enveloppe 2 de sorte que l'extrémité de la pointe chauffante 12 se replace à l'intérieur de la cage de protection 14, sans laisser une quelconque partie de la pointe 12 protubérante hors de ladite cage 14.The device for pyrography 1, illustrated in FIG. 2, here comprises a mechanical press button mechanism comprising a control button 18 or press button, a lever 19, a carriage 20, connection supports 21 in which the inner end of the heating tip 12 is trapped, as well as a spring 22. When the user presses the control button 18, the latter engages the advance of the connection supports 21 so that the end of the heating tip 12 comes out of the protective cage 14. Likewise, when the user presses the control button 18 again, the connection supports 21 move towards the interior of the casing 2 so that the end of the heating tip 12 is replaced inside the protective cage 14, without leaving any part of the protruding tip 12 outside of said cage 14.
Il pourra également être envisagé que l'utilisateur doit maintenir le bouton de commande 18 appuyé de sorte que s'il retire, ou relâche, le doigt ou la main servant à maintenir le mécanisme de bouton-pressoir, ce dernier engage à nouveau la pointe chauffante 12 à l'intérieur de la cage de protection 14. Dès l'insertion de la pointe chauffante 12 à l'intérieur de la cage de protection 14, le ventilateur 7 se met à aspirer ou à expulser plus rapidement 1 ' air environnant de manière à accélérer la vitesse de refroidissement de la pointe chauffante 12. De cette manière, l'utilisateur peut être plus concentré sur son travail car il n'est pas obligé d'être concentré, ou vigilant, pour assurer sa propre sécurité.It could also be envisaged that the user must keep the control button 18 pressed so that if he withdraws, or releases, the finger or the hand serving to hold the press-button mechanism, the latter again engages the tip. heater 12 inside the protective cage 14. As soon as the heating tip 12 is inserted inside the protective cage 14, the fan 7 starts to vacuum or expelling the surrounding air more quickly so as to accelerate the cooling rate of the heating tip 12. In this way, the user can be more concentrated on his work because he does not have to be concentrated, or vigilant, to ensure his own safety.
La description précédente présente les fonctionnements propres à un pyrograveur à filament. Les principes décrits sont transposables à un pyrograveur à inertie pour ce qui est de la présence de la cage de protection, du ventilateur, et du bouton-pressoir déclenchant l'extraction de la pointe chauffante.The preceding description presents the operations specific to a filament pyrography device. The principles described can be transposed to an inertia pyrography device with regard to the presence of the protective cage, the fan, and the press button triggering the extraction of the heating tip.
L'invention est décrite dans ce qui précède à titre d'exemple. Il est entendu que l'homme du métier est à même de réaliser différentes variantes du dispositif pour la pyrogravure 1 selon l'invention, en particulier concernant la forme dudit dispositif ainsi que la disposition des différents éléments composant ledit dispositif, sans pour autant sortir du cadre du brevet. The invention is described in the foregoing by way of example. It is understood that a person skilled in the art is able to produce different variants of the device for pyrography 1 according to the invention, in particular concerning the shape of said device as well as the arrangement of the different elements making up said device, without however leaving the framework of the patent.

Claims

REVENDICATIONS
1. Dispositif pour la pyrogravure (1) comprenant une enveloppe (2) sensiblement allongée de sorte qu'elle soit prehensible par un utilisateur, comportant à l'une de ses extrémités une connexion filaire (6) pour apporter de l'énergie électrique, et à l'autre extrémité une pointe chauffante (12), caractérisé en ce qu'il comprend une cage de protection entourant ladite pointe de sorte que seule son extrémité soit protubérante hors de ladite cage et en ce qu'il comprend un bouton pressoir agissant pour faire avancer la pointe chauffante hors de la cage de protection (14) ou au contraire pour faire rentrer ladite pointe (12) à l'intérieur de la cage de protection (14).1. Device for pyrography (1) comprising a casing (2) substantially elongated so that it can be grasped by a user, comprising at one of its ends a wired connection (6) for supplying electrical energy, and at the other end a heating point (12), characterized in that it comprises a protective cage surrounding said point so that only its end is protruding out of said cage and in that it comprises a press button acting to advance the heating tip out of the protective cage (14) or on the contrary to bring said tip (12) inside the protective cage (14).
2 . Dispositif pour la pyrogravure ( 1 ) selon la revendication 1 , caractérisé en ce que la cage de protection ( 14 ) présente une forme tronconique .2. Device for pyrography (1) according to claim 1, characterized in that the protective cage (14) has a frustoconical shape.
3. Dispositif pour la pyrogravure (1) selon la revendication 1, caractérisé en ce que la cage de protection (14) est en plastique, par exemple en thermoplastique ou en thermodurcissable.3. Device for pyrography (1) according to claim 1, characterized in that the protective cage (14) is plastic, for example thermoplastic or thermosetting.
4. Dispositif pour la pyrogravure (1) selon la revendication 1, caractérisé en ce que la susdite enveloppe (2) comprend en outre un ventilateur (7).4. Device for pyrography (1) according to claim 1, characterized in that the said envelope (2) further comprises a fan (7).
5. Dispositif pour la pyrogravure (1) selon la revendication 1, caractérisé en ce qu'il comprend un bouton-pressoir (11) ou (18) commandant l'arrêt ou la mise en marche dudit dispositif (1), c'est-à-dire la chauffe ou 1 ' arrêt de la chauffe de la susdite pointe ( 12 ) . 5. Device for pyrography (1) according to claim 1, characterized in that it comprises a press button (11) or (18) controlling the stopping or starting of said device (1), that is ie heating or stopping the heating of the aforesaid tip (12).
6. Dispositif pour la pyrogravure (1) selon les revendications 4 et 5, caractérisé en ce que le bouton- pressoir (11) ou (18), lorsqu'il est placé en position d'arrêt dudit dispositif (1), commande au ventilateur (7) de tourner plus rapidement, de sorte que la pointe (12) refroidisse rapidement.6. Device for pyrography (1) according to claims 4 and 5, characterized in that the press button (11) or (18), when placed in the stop position of said device (1), control the fan (7) to rotate more quickly, so that the tip (12) cools quickly.
7. Dispositif pour la pyrogravure (1) selon la revendication 5, caractérisé en ce qu'il comprend au moins une lampe témoin (13) de fonctionnement, par exemple allumé de couleur verte lorsque le bouton-pressoir (11) ou (18) est en position "arrêt" ou que la pointe chauffante (12) est froide, et de couleur rouge lorsque le bouton-pressoir (11) ou (18) est en position "marche" dudit dispositif (1) ou que la pointe chauffante (12) est encore chaude.7. Device for pyrography (1) according to claim 5, characterized in that it comprises at least one pilot lamp (13) for operation, for example lit green when the press button (11) or (18) is in the "off" position or the heating tip (12) is cold, and red in color when the press button (11) or (18) is in the "on" position of said device (1) or when the heating tip ( 12) is still hot.
8. Dispositif pour la pyrogravure (1) selon la revendication 5, caractérisé en ce que le bouton-pressoir (11) ou (18) consiste en un dispositif de commande agissant pour faire avancer la pointe (12) hors de la cage de protection (14) ou au contraire pour faire rentrer ladite pointe (12) à l'intérieur de la cage de protection (14).8. Device for pyrography (1) according to claim 5, characterized in that the press button (11) or (18) consists of a control device acting to advance the point (12) out of the protective cage (14) or on the contrary to bring said point (12) inside the protective cage (14).
9. Dispositif pour la pyrogravure (1) selon la revendication 1, caractérisé en ce qu'il comprend à proximité un dispositif de garde (10) protubérant, par exemple de forme circulaire entourant la susdite enveloppe (2).9. Device for pyrography (1) according to claim 1, characterized in that it comprises nearby a guard device (10) protruding, for example of circular shape surrounding the above envelope (2).
10. Dispositif pour la pyrogravure (1) selon la revendication 4, caractérisé en ce que le ventilateur (7) est disposé en direction de la susdite pointe chauffante ( 12 ) de manière à souffler de 1 ' air vers l'extérieur ; l'air soufflé, ou expulsé, passant entre la pointe ( 12 ) et la paroi intérieure de la susdite cage de protection (14).10. Device for pyrography (1) according to claim 4, characterized in that the fan (7) is arranged in the direction of the above heating tip (12) so as to blow air 1 outward; the blown or expelled air passing between the tip (12) and the inner wall of the said protective cage (14).
11. Dispositif pour la pyrogravure (1) selon la revendication 4, caractérisé en ce que le ventilateur (7) aspire l'air atmosphérique extérieur.11. Device for pyrography (1) according to claim 4, characterized in that the fan (7) sucks in the outside atmospheric air.
12. Dispositif pour la pyrogravure (1) selon la revendication 11, caractérisé en ce que les fumées sont évacuées par un conduit d'échappement situé à l'opposé de la pointe chauffante (12), ou déporté plus loin par l'intermédiaire d'un tuyau souple.12. Device for pyrography (1) according to claim 11, characterized in that the fumes are evacuated by an exhaust duct located opposite the heating tip (12), or offset further through d 'a flexible hose.
13. Dispositif pour la pyrogravure (1) selon la revendication 4, caractérisé en ce qu'il comprend en outre un moteur (9), par exemple un moteur électrique, relié au ventilateur ( 7 ) .13. Device for pyrography (1) according to claim 4, characterized in that it further comprises a motor (9), for example an electric motor, connected to the fan (7).
14. Dispositif pour la pyrogravure (1) selon les revendications 4 et 13, caractérisé en ce que le moteur (9) et le ventilateur (7) sont déportés à l'extérieur de la susdite enveloppe (2) afin notamment d'alléger le dispositif de pyrogravure (1) ; l'air ventilé circulant alors entre le ventilateur (7) et ledit dispositif (1) au travers d'un tuyau. 14. Device for pyrography (1) according to claims 4 and 13, characterized in that the motor (9) and the fan (7) are offset outside the above-mentioned envelope (2) in particular to lighten the pyrography device (1); the ventilated air then circulating between the fan (7) and said device (1) through a pipe.
EP03760768A 2002-06-20 2003-06-20 Pyrographic device Withdrawn EP1532005A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0207666A FR2841179B1 (en) 2002-06-20 2002-06-20 DEVICE FOR PYROGRAVURE
FR0207666 2002-06-20
PCT/FR2003/001911 WO2004000576A1 (en) 2002-06-20 2003-06-20 Pyrographic device

Publications (1)

Publication Number Publication Date
EP1532005A1 true EP1532005A1 (en) 2005-05-25

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ID=29719921

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03760768A Withdrawn EP1532005A1 (en) 2002-06-20 2003-06-20 Pyrographic device

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EP (1) EP1532005A1 (en)
AU (1) AU2003264671A1 (en)
CA (1) CA2489338A1 (en)
FR (1) FR2841179B1 (en)
WO (1) WO2004000576A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110901273B (en) * 2019-11-04 2021-06-18 三峡大学 Heating type automatic control device and control method thereof

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2101913A (en) * 1936-01-15 1937-12-14 Edwin L Meyer Pyrographic pencil
US2523518A (en) * 1948-02-12 1950-09-26 Rapaport Meyer Pyrographic instrument
US2498328A (en) * 1948-04-14 1950-02-21 Allen L Atkins Electric pyrographic instrument

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004000576A1 *

Also Published As

Publication number Publication date
FR2841179B1 (en) 2007-04-06
FR2841179A1 (en) 2003-12-26
WO2004000576A1 (en) 2003-12-31
AU2003264671A1 (en) 2004-01-06
CA2489338A1 (en) 2003-12-31

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