EP1547790A1 - Thermal printer - Google Patents

Thermal printer Download PDF

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Publication number
EP1547790A1
EP1547790A1 EP04292731A EP04292731A EP1547790A1 EP 1547790 A1 EP1547790 A1 EP 1547790A1 EP 04292731 A EP04292731 A EP 04292731A EP 04292731 A EP04292731 A EP 04292731A EP 1547790 A1 EP1547790 A1 EP 1547790A1
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EP
European Patent Office
Prior art keywords
frame
spring
finger
print head
branches
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP04292731A
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German (de)
French (fr)
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EP1547790B1 (en
Inventor
Jean-Marc Untersteller
Eric Pallier
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.)
Axiohm SA
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Axiohm SA
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Filing date
Publication date
Application filed by Axiohm SA filed Critical Axiohm SA
Publication of EP1547790A1 publication Critical patent/EP1547790A1/en
Application granted granted Critical
Publication of EP1547790B1 publication Critical patent/EP1547790B1/en
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Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/315—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material
    • B41J2/32—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads
    • B41J2/335—Structure of thermal heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J25/00—Actions or mechanisms not otherwise provided for
    • B41J25/304—Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface

Definitions

  • the present invention relates to a printer thermal type having a roll forming support and training for a print medium (paper ribbon thermally sensitive) also serving as a support for a print head that is pulled back against a generator of this roll (called capstan) and that rubs with this place on the paper by a line of heated dots.
  • a print medium paper ribbon thermally sensitive
  • capstan generator of this roll
  • the print head is formed by an associated ceramic plate to a metal radiator which is mounted swinging or articulated on a frame about an axis parallel to the axis of the capstan, which is itself carried by the frame in bearings or half-bearings, permanently if the printer is not open, either temporarily only when the printer is closed.
  • a spring, banded between the frame and the print head, plate this last against a generator of the capstan at its line of heating points in the vicinity from the edge of the plate opposite to that next to the tilting axis.
  • Friction of the print head on the paper which flows under its line of heating points generates electrostatic charges that accumulate in head and should be evacuated to prevent them from do not disturb the quality of printing. Other charges can be transferred to the head; it's especially the case when a contact between the head and the hand of a operator himself carrying charges.
  • the power supply and the control heating points of the print head are provided by a flat conductor (flounder) which comprises also a ground conductor.
  • This driver serves in particular to connect the print head to the printer's ground even of the device in which it is integrated.
  • the electrical contact between the print head and the ground wire of the dab is insured by any means suitable for example an implanted screw terminal in the radiator and on which we slide a grommet conductor electrically connected to the ground wire and blocked by a nut on the terminal. This type of editing is long and expensive.
  • the present invention aims to simplify the composition and assembly of a thermal printer.
  • the invention therefore relates to a printer thermal device comprising a frame, a print head tilting in the frame and a spring carried by the frame and forming a return member of the print head in its printing position while a flexible tablecloth of conductors leads to the print head.
  • the spring is of electrically conductive material and comprises a finger to be received in a corresponding hole of the frame while a portion of the web has a conductive eyelet crossed by the spring finger when the latter is housed in the hole of the frame.
  • the spring is made of wire curved, one end of which is the aforesaid finger while its other end cooperates elastically with the frame to oppose the release of the finger out of the orifice.
  • the spring is thus shaped jumper elastic whose branches enclose the frame while can for mounting and dismounting move away elastically of the latter to allow to house the finger in the hole of the frame or on the contrary extract it.
  • the spring affects the general shape of a U with the finger at the end of one of his branches, in return substantially parallel to the base of the U, each of its branches being housed in a groove of the body so that only the base of the U is elastically flexibly deformable in a substantially perpendicular plane to the branches.
  • the embodiment shown in the figures regards a thermal printer to edit tickets or receipts dedicating for example the execution of a transaction.
  • a frame 1 generally made of plastic, which roughly comprises a crossbar 1a and two wings 1b, 1c.
  • the frame supports a print head 2 which can swing on a weak angle around an axis substantially parallel to the cross 1a.
  • This print head has a line of non-visible heating points on the figures, which comes to rely on a generator a support roll or capstan 3 welcomed in support bearings 4a and 4b of the wings 1b and 1c of the frame 1.
  • This support position corresponds to the position printing the printer.
  • reference 2 door on the metal radiator of the print head which also comprises a ceramic plate 2a carrier of the heating point line.
  • Frame 1 supports a motor 5 which via of a gear transmission of which a wheel 6 is visible in Figure 3, can cause the capstan 3 in rotation; it becomes a means of training print media under the print head 2.
  • a series of electrical conductors gathered in a flexible ply is noted 7 in the figure. These are used for power supply of the engine and heating points and the control of these points heating.
  • this flexible sheet or dado 7 has a tongue 8 carrying a driver 9 which constitutes a ground wire, this tab 8 being terminated by a metal grommet 10 electrically connected to the ground conductor 9.
  • Tab 8 is driving inside the frame 1 through a slot wing 1b which allows it to be located outside of this wing in order to be folded against this 1b of the frame 1. In this position, the opening of the eyelet 10 is located opposite a hole 11 arranged in the wing 1b of the frame.
  • this return spring is formed by a shaped wire 12 in a U-shaped jumper having a branch 12a, a branch 12b and a base or cross 12c.
  • the branches 12a and 12b are substantially parallel, the branch 12a having one end 13 in return perpendicular to the branch and substantially parallel to the base 12c so as to constitute a finger likely to be introduced into the eyelet 10 of the tongue 8 when the latter is placed in front of the orifice 11.
  • the branch 12b comprises to it an end 14 also curved but oriented to form a substantially perpendicular lug in the general plan of the spring defined by its transom and its two branches.
  • the spring 12 By introducing the finger 13 into the orifice 11, the spring 12 is in its position shown in FIG. and branch 12a is gradually becoming lodged in a external groove 15 of the side blank 1b of the frame 1.
  • the 12c cross is then housed by folding the spring, behind the print head 2 so that the finger 14 slide on a cam surface 16, which forces the elastic deformation mainly from the branch 12b, confirming the introduction of the finger in the orifice 11.
  • the lug 14 is folded elastically against the blank 1c of frame 1 so that branch 12b is housed in an open-out groove that has laterally this blank 1c, noted 17 in Figure 3 and that it is blocked longitudinally in this groove by cooperation of the lug 14 and the end of the cam 16.
  • the cross member 12c of the spring is not rectilinear but affects a shape such as its area central 18 constitutes a forced support of the crossbar behind 2. In this way, it is the elastic deformation in flexion of the cross member 12c which is the means of recalling the print head 2 against the capstan 3. Any other curved shape of the spring in a plane substantially perpendicular to that which contains the branches 12a and 12b, would be an equivalent to the layout shown.
  • the invention applies to other embodiments not represented by a printer and in particular of the application spring of the print head against the support roll.
  • a spring that affects the shape no longer of a wire but a curved metal blade, which is curved between the two wings 1b and 1c of the frame, one of the ends of this metal blade having a finger that comes back like what was described above in a orifice of these wings by passing beforehand by a eye of electrical connection of the blade to a wire mass.
  • the eyelet would be next to an orifice such as 11 from the inside of the wing of the corresponding frame, the blade being braced between the two inner faces of the two wings.
  • the material of the spring 12 can be composite, for example a synthetic material covered with a coating metallic.
  • the eyelet 10 a pellet in which, in the center, a primer of rupture was planned for the passage in force of the finger 13.

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  • Common Mechanisms (AREA)

Abstract

Thermal printer has a printhead (2) rotating in a frame having an electrically conductive spring (12) for returning the printhead to its printing position when an electrically conductive cable (7) contacts the printhead. The spring has a finger (13) received in an orifice (11) of the frame. A portion of the cable has a conductive eyelet (10) through which the finger passes when the finger is in the orifice, and crimped by the spring against the frame.

Description

La présente invention concerne une imprimante thermique du type possédant un rouleau formant appui et entraínement pour un support d'impression (ruban de papier sensible thermiquement) servant également d'appui à une tête d'impression qui est rappelée contre une génératrice de ce rouleau (appelé cabestan) et qui frotte à cet endroit sur le papier par une ligne de points chauffants.The present invention relates to a printer thermal type having a roll forming support and training for a print medium (paper ribbon thermally sensitive) also serving as a support for a print head that is pulled back against a generator of this roll (called capstan) and that rubs with this place on the paper by a line of heated dots.

ARRIERE PLAN DE L'INVENTIONBACKGROUND OF THE INVENTION

Ces dispositifs sont bien connus. La tête d'impression est formée par une plaque en céramique associée à un radiateur métallique qui est montée basculante ou articulée sur un bâti autour d'un axe parallèle à l'axe du cabestan, lequel est lui-même porté par le bâti dans des paliers ou demi-paliers, soit de manière permanente si l'imprimante n'est pas ouvrante, soit de manière temporaire uniquement lorsque l'imprimante est fermée. Un ressort, bandé entre le bâti et la tête d'impression, plaque cette dernière contre une génératrice du cabestan au niveau de sa ligne de points chauffants située au voisinage du bord de la plaque opposé à celui voisin de l'axe de basculement.These devices are well known. The print head is formed by an associated ceramic plate to a metal radiator which is mounted swinging or articulated on a frame about an axis parallel to the axis of the capstan, which is itself carried by the frame in bearings or half-bearings, permanently if the printer is not open, either temporarily only when the printer is closed. A spring, banded between the frame and the print head, plate this last against a generator of the capstan at its line of heating points in the vicinity from the edge of the plate opposite to that next to the tilting axis.

Le frottement de la tête d'impression sur le papier qui circule sous sa ligne de points chauffants engendre des charges électrostatiques qui s'accumulent dans la tête et qu'il convient d'évacuer pour éviter qu'elles ne perturbent la qualité de l'impression. D'autres charges peuvent être transférées à la tête ; c'est notamment le cas lors d'un contact entre la tête et la main d'un opérateur lui-même porteur de charges.Friction of the print head on the paper which flows under its line of heating points generates electrostatic charges that accumulate in head and should be evacuated to prevent them from do not disturb the quality of printing. Other charges can be transferred to the head; it's especially the case when a contact between the head and the hand of a operator himself carrying charges.

Par ailleurs l'alimentation électrique et la commande des points chauffants de la tête d'impression sont assurés par un conducteur plat (limande) qui comporte également un conducteur de masse. Ce conducteur sert notamment à relier la tête d'impression à la masse de l'imprimante voire de l'appareil dans laquelle elle est intégrée. Le contact électrique entre la tête d'impression et le fil de masse de la limande est assuré par tout moyen approprié comme par exemple une borne à vis implantée dans le radiateur et sur laquelle on glisse un oeillet conducteur relié électriquement au fil de masse et bloqué par un écrou sur la borne. Ce type de montage est long et coûteux.In addition, the power supply and the control heating points of the print head are provided by a flat conductor (flounder) which comprises also a ground conductor. This driver serves in particular to connect the print head to the printer's ground even of the device in which it is integrated. The electrical contact between the print head and the ground wire of the dab is insured by any means suitable for example an implanted screw terminal in the radiator and on which we slide a grommet conductor electrically connected to the ground wire and blocked by a nut on the terminal. This type of editing is long and expensive.

OBJET DE L'INVENTIONOBJECT OF THE INVENTION

La présente invention a pour but de simplifier la composition et le montage d'une imprimante thermique.The present invention aims to simplify the composition and assembly of a thermal printer.

BREVE DESCRIPTION DE L'INVENTIONBRIEF DESCRIPTION OF THE INVENTION

A cet effet l'invention a donc pour objet une imprimante thermique comportant un bâti, une tête d'impression basculante dans le bâti et un ressort porté par le bâti et formant organe de rappel de la tête d'impression dans sa position d'impression tandis qu'une nappe souple de conducteurs aboutit à la tête d'impression. Selon la caractéristique première de l'invention, le ressort est en matériau électriquement conducteur et comporte un doigt pour être reçu dans un orifice correspondant du bâti tandis qu'une portion de la nappe porte un oeillet conducteur traversé par le doigt du ressort lorsque ce dernier est logé dans l'orifice du bâti.For this purpose the invention therefore relates to a printer thermal device comprising a frame, a print head tilting in the frame and a spring carried by the frame and forming a return member of the print head in its printing position while a flexible tablecloth of conductors leads to the print head. According to prime feature of the invention, the spring is of electrically conductive material and comprises a finger to be received in a corresponding hole of the frame while a portion of the web has a conductive eyelet crossed by the spring finger when the latter is housed in the hole of the frame.

Grâce à cette disposition, on assure le contact électrique entre le ressort et le conducteur de masse appartenant à la nappe de conducteur électrique et relié à l' oeillet susdit par le simple montage du ressort sur le bâti. Ce ressort en effet est appliqué contre l' oeillet qui est pincé entre le ressort et le bâti au voisinage du doigt.Thanks to this arrangement, contact is assured between the spring and the ground conductor belonging to to the layer of electrical conductor and connected to the aforementioned eyelet by the simple assembly of the spring on the frame. This spring indeed is applied against the eyelet which is pinched between the spring and the frame in the vicinity of finger.

De manière préférée, le ressort est en fil métallique courbé dont une extrémité constitue le doigt susdit tandis que son autre extrémité coopère élastiquement avec le bâti pour s'opposer au dégagement du doigt hors de l'orifice. Le ressort est ainsi en forme de cavalier élastique dont les branches enserrent le bâti tout en pouvant pour le montage et le démontage s'écarter élastiquement de ce dernier pour permettre de loger le doigt dans l'orifice du bâti ou au contraire l'en extraire.Preferably, the spring is made of wire curved, one end of which is the aforesaid finger while its other end cooperates elastically with the frame to oppose the release of the finger out of the orifice. The spring is thus shaped jumper elastic whose branches enclose the frame while can for mounting and dismounting move away elastically of the latter to allow to house the finger in the hole of the frame or on the contrary extract it.

Plus précisément, le ressort affecte la forme générale d'un U avec le doigt à l'extrémité de l'une de ses branches, en retour sensiblement parallèle à la base du U, chacune de ses branches étant logée dans une rainure du corps de sorte que seule la base du U est élastiquement déformable en flexion dans un plan sensiblement perpendiculaire aux branches.Specifically, the spring affects the general shape of a U with the finger at the end of one of his branches, in return substantially parallel to the base of the U, each of its branches being housed in a groove of the body so that only the base of the U is elastically flexibly deformable in a substantially perpendicular plane to the branches.

D'autres caractéristiques et avantages de l'invention ressortiront de sa description donnée ci-après à titre d'exemples purement indicatifs.Other features and advantages of the invention will emerge from its description given below in purely illustrative examples.

BREVE DESCRIPTION DES DESSINSBRIEF DESCRIPTION OF THE DRAWINGS

Il sera fait référence aux dessins annexés parmi lesquels :

  • la figure 1 est une vue extérieure d'une imprimante conforme à l'invention avant la mise en place du ressort,
  • la figure 2 est une vue semblable à celle de la figure 1 au cours de la mise en place du ressort,
  • la figure 3 illustre l'imprimante avec le ressort totalement mis en place.
Reference will be made to the appended drawings among which:
  • FIG. 1 is an external view of a printer according to the invention before the introduction of the spring,
  • FIG. 2 is a view similar to that of FIG. 1 during the installation of the spring,
  • Figure 3 illustrates the printer with the spring fully in place.

DESCRIPTION DETAILLEE DE L'INVENTIONDETAILED DESCRIPTION OF THE INVENTION

Le mode de réalisation représenté aux figures concerne une imprimante thermique pour éditer des tickets ou des reçus consacrant par exemple l'exécution d'une transaction. Dans ce type d'imprimante il est connu de mettre en oeuvre un bâti 1, généralement en matière plastique, qui comporte grossièrement une traverse 1a et deux ailes 1b, 1c. Le bâti supporte une tête d'impression 2 qui peut basculer sur un angle faible autour d'un axe sensiblement parallèle à la traverse 1a. Cette tête d'impression comporte une ligne de points chauffants non visibles sur les figures, qui vient s'appuyer sur une génératrice d'un rouleau d'appui ou cabestan 3 accueilli dans des paliers de soutien 4a et 4b des ailes 1b et 1c du bâti 1. Cette position d'appui correspond à la position d'impression de l'imprimante. En réalité, la référence 2 porte sur le radiateur métallique de la tête d'impression qui comporte également une plaque en céramique 2a porteuse de la ligne de points chauffants.The embodiment shown in the figures regards a thermal printer to edit tickets or receipts dedicating for example the execution of a transaction. In this type of printer it is known to to implement a frame 1, generally made of plastic, which roughly comprises a crossbar 1a and two wings 1b, 1c. The frame supports a print head 2 which can swing on a weak angle around an axis substantially parallel to the cross 1a. This print head has a line of non-visible heating points on the figures, which comes to rely on a generator a support roll or capstan 3 welcomed in support bearings 4a and 4b of the wings 1b and 1c of the frame 1. This support position corresponds to the position printing the printer. In fact, reference 2 door on the metal radiator of the print head which also comprises a ceramic plate 2a carrier of the heating point line.

Le bâti 1 supporte un moteur 5 qui par l'intermédiaire d'une transmission à engrenage dont une roue 6 est visible à la figure 3, peut entraíner le cabestan 3 en rotation ; celui-ci devient alors un moyen d'entraínement du support d'impression sous la tête d'impression 2.Frame 1 supports a motor 5 which via of a gear transmission of which a wheel 6 is visible in Figure 3, can cause the capstan 3 in rotation; it becomes a means of training print media under the print head 2.

Une série de conducteurs électriques rassemblés en une nappe souple est notée 7 sur la figure. Ceux-ci servent à l'alimentation en énergie du moteur et des points chauffants ainsi qu'à la commande de ces points chauffants.A series of electrical conductors gathered in a flexible ply is noted 7 in the figure. These are used for power supply of the engine and heating points and the control of these points heating.

Conformément à l'invention, cette nappe souple ou limande 7 comporte une languette 8 porteuse d'un conducteur 9 qui constitue un fil de masse, cette languette 8 étant terminée par un oeillet métallique 10 électriquement connecté au conducteur de masse 9. La languette 8 est conduite à l'intérieur du bâti 1 au travers d'une fente de l'aile 1b qui lui permet d'être située à l'extérieur de cette aile afin de pouvoir être rabattue contre cette aile 1b du bâti 1. Dans cette position, l'ouverture de l'oeillet 10 est située en regard d'un orifice 11 ménagé dans l'aile 1b du bâti.According to the invention, this flexible sheet or dado 7 has a tongue 8 carrying a driver 9 which constitutes a ground wire, this tab 8 being terminated by a metal grommet 10 electrically connected to the ground conductor 9. Tab 8 is driving inside the frame 1 through a slot wing 1b which allows it to be located outside of this wing in order to be folded against this 1b of the frame 1. In this position, the opening of the eyelet 10 is located opposite a hole 11 arranged in the wing 1b of the frame.

Pour maintenir la tête d'impression 2 au contact du cabestan 3, on utilise un ressort de rappel bandé entre la tête et le bâti. Dans le cas de l'invention, ce ressort de rappel est formé par un fil métallique 12 conformé en un cavalier en U possédant une branche 12a, une branche 12b et une base ou traverse 12c. Les branches 12a et 12b sont sensiblement parallèles, la branche 12a ayant une extrémité 13 en retour perpendiculaire à la branche et sensiblement parallèle à la base 12c de manière à constituer un doigt susceptible d'être introduit dans l' oeillet 10 de la languette 8 lorsque ce dernier est placé en face de l'orifice 11. La branche 12b comporte quant à elle une extrémité 14 également recourbée mais orientée de manière à former un ergot sensiblement perpendiculaire au plan général du ressort défini par sa traverse et ses deux branches.To keep the print head 2 in contact capstan 3, use a return spring banded between the head and the frame. In the case of the invention, this return spring is formed by a shaped wire 12 in a U-shaped jumper having a branch 12a, a branch 12b and a base or cross 12c. The branches 12a and 12b are substantially parallel, the branch 12a having one end 13 in return perpendicular to the branch and substantially parallel to the base 12c so as to constitute a finger likely to be introduced into the eyelet 10 of the tongue 8 when the latter is placed in front of the orifice 11. The branch 12b comprises to it an end 14 also curved but oriented to form a substantially perpendicular lug in the general plan of the spring defined by its transom and its two branches.

En introduisant le doigt 13 dans l'orifice 11, le ressort 12 est dans sa position représentée à la figure 2 et la branche 12a vient progressivement se loger dans une rainure 15 extérieure du flan latéral 1b du bâti 1. La traverse 12c se loge ensuite par rabattement du ressort, derrière la tête d'impression 2 de manière que le doigt 14 vienne glisser sur une surface de came 16, ce qui force la déformation élastique principalement de la branche 12b, confirmant en cela l'introduction du doigt 13 dans l'orifice 11. Au-delà de la surface de came 16, l'ergot 14 se rabat élastiquement contre le flan 1c du bâti 1 de sorte que la branche 12b se trouve logée dans une rainure ouverte vers l'extérieur que possède latéralement ce flan 1c, notée 17 à la figure 3 et qu'elle est bloquée longitudinalement dans cette rainure par la coopération de l'ergot 14 et de l'extrémité de la came 16.By introducing the finger 13 into the orifice 11, the spring 12 is in its position shown in FIG. and branch 12a is gradually becoming lodged in a external groove 15 of the side blank 1b of the frame 1. The 12c cross is then housed by folding the spring, behind the print head 2 so that the finger 14 slide on a cam surface 16, which forces the elastic deformation mainly from the branch 12b, confirming the introduction of the finger in the orifice 11. Beyond the cam surface 16, the lug 14 is folded elastically against the blank 1c of frame 1 so that branch 12b is housed in an open-out groove that has laterally this blank 1c, noted 17 in Figure 3 and that it is blocked longitudinally in this groove by cooperation of the lug 14 and the end of the cam 16.

On aura noté que la traverse 12c du ressort n'est pas rectiligne mais affecte une forme telle que sa zone centrale 18 constitue un appui forcé de la traverse derrière la tête d'impression 2. De cette manière, c'est la déformation élastique en flexion de la traverse 12c qui constitue le moyen de rappel de la tête d'impression 2 contre le cabestan 3. Toute autre forme cintrée du ressort dans un plan sensiblement perpendiculaire à celui qui contient les branches 12a et 12b, serait un équivalent à la disposition représentée.It will be noted that the cross member 12c of the spring is not rectilinear but affects a shape such as its area central 18 constitutes a forced support of the crossbar behind 2. In this way, it is the elastic deformation in flexion of the cross member 12c which is the means of recalling the print head 2 against the capstan 3. Any other curved shape of the spring in a plane substantially perpendicular to that which contains the branches 12a and 12b, would be an equivalent to the layout shown.

Il est ainsi assuré par le ressort 12 une continuité électrique entre la tête d'impression 2 et le conducteur de masse 9 et ce de manière extrêmement simple sans avoir recours aux moyens de connexion complexes connus par l'état de la technique. Dans cette position en effet, la portion de branche 12a du ressort voisine du doigt 13 porte sur l'oeillet 10 (qui est une rondelle plate conductrice en bout de la languette 8). On assiste même, si le trou de l'oeillet est plus petit que l'orifice 11 en diamètre, à une déformation de l'oeillet par le congé de raccordement du doigt 13 à la branche 12a.It is thus ensured by the spring 12 a continuity between the print head 2 and the driver of mass 9 and this extremely simple way without resorting to known complex connection means by the state of the art. In this position effect, the branch portion 12a of the spring next to the finger 13 carries on the eyelet 10 (which is a washer flat conductive end of the tongue 8). We see same, if the hole of the eyelet is smaller than the hole 11 in diameter, to a deformation of the eyelet by the leave connecting the finger 13 to the branch 12a.

L'invention a été décrite en regard d'une tête d'impression particulière. Elle s'applique bien entendu à toute tête d'impression qui aux lieu et place d'un rouleau d'appui 3, mettrait en oeuvre un support quelconque du papier sensible à imprimer et sur lequel il faudrait appliquer élastiquement la ligne de points chauffants.The invention has been described next to a head particular printing. It applies of course to any print head that instead of a roll support 3, would implement any support sensitive paper to print on which it would be necessary elastically apply the line of heating points.

L'invention s'applique à d'autres formes de réalisations non représentées d'une imprimante et notamment du ressort d'application de la tête d'impression contre le rouleau d'appui. On peut en effet mettre en oeuvre un ressort qui affecte la forme non plus d'un fil métallique mais d'une lame métallique courbée, laquelle étant cintrée entre les deux ailes 1b et 1c du bâti, l'une des extrémités de cette lame métallique possédant un doigt qui vient rentrer comme ce qui a été décrit ci-dessus dans un orifice de ces ailes en passant préalablement par un oeillet de connexion électrique de la lame à un fil de masse. Dans ce cas l'oeillet serait en regard d'un orifice tel que 11 à partir de la face intérieure de l'aile du bâti correspondante, la lame étant arc-boutée entre les deux faces intérieures des deux ailes.The invention applies to other embodiments not represented by a printer and in particular of the application spring of the print head against the support roll. We can indeed implement a spring that affects the shape no longer of a wire but a curved metal blade, which is curved between the two wings 1b and 1c of the frame, one of the ends of this metal blade having a finger that comes back like what was described above in a orifice of these wings by passing beforehand by a eye of electrical connection of the blade to a wire mass. In this case the eyelet would be next to an orifice such as 11 from the inside of the wing of the corresponding frame, the blade being braced between the two inner faces of the two wings.

Le matériau du ressort 12 peut être composite, par exemple une matière synthétique recouverte d'un revêtement métallique.The material of the spring 12 can be composite, for example a synthetic material covered with a coating metallic.

Il est possible également de prévoir que l'oeillet 10 soit une pastille dans laquelle, au centre une amorce de rupture a été prévue pour le passage en force du doigt 13.It is also possible to provide that the eyelet 10 a pellet in which, in the center, a primer of rupture was planned for the passage in force of the finger 13.

Claims (3)

Imprimante thermique comportant un bâti (1), une tête d'impression (2) basculante dans le bâti (1) et un ressort (12) porté par le bâti et formant organe de rappel de la tête d'impression dans sa position d'impression tandis qu'une nappe (7) de conducteur souple aboutit à la tête d'impression, caractérisée en ce que le ressort (12) est en matériau électriquement conducteur et comporte un doigt (13) pour être reçu dans un orifice (11) correspondant du bâti tandis qu'une portion (8) de la nappe (7) porte un oeillet (10) conducteur traversé par le doigt (13) du ressort lorsque ce dernier est logé dans l'orifice (11) du bâti (1), le ressort pinçant ainsi l'oeillet (10) contre le bâti.Thermal printer comprising a frame (1), a print head (2) tilting in the frame (1) and a spring (12) carried by the frame and forming a return member of the print head in its position of printing while a web (7) of flexible conductor leads to the print head, characterized in that the spring (12) is electrically conductive material and comprises a finger (13) to be received in a hole (11) corresponding part of the frame while a portion (8) of the ply (7) carries a conductive eyelet (10) traversed by the finger (13) of the spring when the latter is housed in the orifice (11) of the frame (1) the spring thus pinching the eyelet (10) against the frame. Imprimante selon la revendication 1, caractérisée en ce que le ressort (12) est en fil métallique courbé dont une extrémité constitue le doigt (13) susdit tandis que son autre extrémité coopère élastiquement avec le bâti (1) pour s'opposer au dégagement du doigt (13) hors de l'orifice (11).Printer according to claim 1, characterized in that the spring (12) is curved wire whose one end constitutes the finger (13) aforesaid while its other end cooperates elastically with the frame (1) to oppose the release of the finger (13) out of the orifice (11). Imprimante selon la revendication 2, caractérisée en ce que le ressort (12) affecte la forme générale d'un U avec le doigt (13) à l'extrémité de l'une de ses branches (12a), en retour sensiblement parallèle à la base (12c) du U, chacune des branches (12a, 12b) étant logée dans une rainure (15, 16) du bâti (1) de sorte que seule la base (12c) du U est élastiquement déformable en flexion dans un plan sensiblement perpendiculaire aux branches (12a, 12b).Printer according to claim 2, characterized in that the spring (12) has the general shape of a U with the finger (13) at the end of one of its branches (12a), in return substantially parallel to the base (12c) of the U, each of the branches (12a, 12b) being housed in a groove (15, 16) of the frame (1) so that only the base (12c) of the U is elastically deformable in bending in a plane substantially perpendicular to the branches (12a, 12b).
EP04292731A 2003-12-23 2004-11-18 Thermal printer Not-in-force EP1547790B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0315233 2003-12-23
FR0315233A FR2863936B1 (en) 2003-12-23 2003-12-23 THERMAL PRINTER

Publications (2)

Publication Number Publication Date
EP1547790A1 true EP1547790A1 (en) 2005-06-29
EP1547790B1 EP1547790B1 (en) 2008-05-07

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EP04292731A Not-in-force EP1547790B1 (en) 2003-12-23 2004-11-18 Thermal printer

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US (1) US7037010B2 (en)
EP (1) EP1547790B1 (en)
DE (1) DE602004013526D1 (en)
ES (1) ES2305688T3 (en)
FR (1) FR2863936B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1826017A3 (en) * 2006-02-23 2008-11-05 Seiko Instruments Inc. Head support structure, printing device, thermally activating device, and printer

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4690135B2 (en) * 2005-06-22 2011-06-01 富士通コンポーネント株式会社 Printing device
TWI471229B (en) * 2012-01-05 2015-02-01 Hiti Digital Inc Fixing mechanism capable of fixing a thermal print head module in different positions and thermal sublimation printer therewith

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5309181A (en) * 1990-12-19 1994-05-03 Rohm Co., Ltd. Pressing clip for flexible member
FR2708523A1 (en) * 1993-08-02 1995-02-10 Axiohm Thermal printer with a tilting head
US5570121A (en) * 1993-12-20 1996-10-29 Monarch Marking Systems, Inc. Printer

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6464416B1 (en) * 1999-01-26 2002-10-15 Canon Kabushiki Kaisha Apparatus having carriage scanning mechanism, and recording apparatus, information recording/reproducing apparatus, information recording apparatus, information reproduction apparatus, information reading apparatus and information erasing apparatus, each provided with apparatus having carriage scanning mechanism
US6604876B2 (en) * 2000-09-29 2003-08-12 Zih Corp. System for dissipating electrostatic charge in a printer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5309181A (en) * 1990-12-19 1994-05-03 Rohm Co., Ltd. Pressing clip for flexible member
FR2708523A1 (en) * 1993-08-02 1995-02-10 Axiohm Thermal printer with a tilting head
US5570121A (en) * 1993-12-20 1996-10-29 Monarch Marking Systems, Inc. Printer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1826017A3 (en) * 2006-02-23 2008-11-05 Seiko Instruments Inc. Head support structure, printing device, thermally activating device, and printer
US7614809B2 (en) 2006-02-23 2009-11-10 Seiko Instruments Inc. Head support structure, printing device, thermally activating device, and printer

Also Published As

Publication number Publication date
EP1547790B1 (en) 2008-05-07
FR2863936B1 (en) 2006-01-20
DE602004013526D1 (en) 2008-06-19
ES2305688T3 (en) 2008-11-01
US7037010B2 (en) 2006-05-02
FR2863936A1 (en) 2005-06-24
US20050135858A1 (en) 2005-06-23

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