EP0900144B1 - Device for printing a strip medium - Google Patents

Device for printing a strip medium Download PDF

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Publication number
EP0900144B1
EP0900144B1 EP97913242A EP97913242A EP0900144B1 EP 0900144 B1 EP0900144 B1 EP 0900144B1 EP 97913242 A EP97913242 A EP 97913242A EP 97913242 A EP97913242 A EP 97913242A EP 0900144 B1 EP0900144 B1 EP 0900144B1
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EP
European Patent Office
Prior art keywords
locking member
cover
lever
printer device
carriage
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.)
Expired - Lifetime
Application number
EP97913242A
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German (de)
French (fr)
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EP0900144A1 (en
Inventor
Francis Berthelot
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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Publication date
Application filed by Axiohm SA filed Critical Axiohm SA
Publication of EP0900144A1 publication Critical patent/EP0900144A1/en
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Publication of EP0900144B1 publication Critical patent/EP0900144B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • B41J15/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in continuous form, e.g. webs
    • B41J15/04—Supporting, feeding, or guiding devices; Mountings for web rolls or spindles

Definitions

  • the present invention relates to a device printing a medium, for example a strip of tape to form a ticket justifying a transaction.
  • the invention relates to printing devices in which the print head - for example inkjet, impact or thermal - is pivotally connected to a carriage moving back and forth, transversely to the strip to be printed, along a guide straight integral with a frame.
  • the print head is held in abutment, by a spring arranged between the carriage and the head, against a desk facing him and united of the frame.
  • the strip for example a ribbon of paper under the shape of a roll unrolled as and when printing, is moved perpendicular to the guide between the head and lectern via mounted rollers pivoting on the frame.
  • a printing device comprising a frame on which a cover carrying the desk and the rollers is pivotally mounted between a closed position in which the head is supported on the desk and a open position allowing the installation of a blank tape. After opening the hood you can insert a new roll of tape, then this cover is closed while the free end of the strip is held manually so as to be taken between the desk and the head once the cover is in its closed position.
  • a device is proposed printing of a strip support comprising a frame, a carriage movable in translation along an integral guide of the frame and carrying a pivoting print head and a elastic means arranged between the carriage and the head printing, a cover carrying a desk and swivel connection to the frame between a closed position in which the head is kept pressed on the desk by the elastic means and an open position a locking carried by the frame retractably between a first position where it cooperates with an integral stop of the hood and a second position in which it escapes this stop, characterized in that the locking is secured to a lever articulated to the frame, this lever having one end cooperating with the head printing so that in the movement of the organ locking between its first and its second position, the end of the lever causes the head to pivot printing against the effect of the elastic means.
  • the end of the lever has a width corresponding to the length of the displacement of the cart.
  • the end of the lever can cooperate with the head whatever the position of the carriage along the guide.
  • the organ locking device has a surface for its actuation between its two positions, cooperating by pressing with the stop when pivoting the cover near its position closing.
  • the push button can be carried by the hood directly above the operating surface when the cover is in its closed position, the operation of the button causing the displacement of the locking member of its first to its second position by sliding on the actuation surface.
  • the push button in an alternative embodiment, can be arranged on the frame, the operation of the button causing the displacement of the locking member of its first to its second position per action on a operating part of this organ different from the surface actuation.
  • a means elastic return is arranged between the frame and the member to recall the locking member in his first position.
  • the frame represented in the figures in the form of a housing 1, carries a rod forming a guide 2, along which slides a carriage 5 constituting in known manner the nut of a screw / nut system whose screw 6 is parallel to the guide 2 and coupled to a drive motor 3 secured to the housing 1.
  • the carriage 5 carries on a parallel vertical side at its sliding direction a print head 7 pivoting about an axis 8 parallel to the guide 2 and integral with the carriage 5, and a spring 9 disposed above the axis 8 between the carriage 5 and the head 7, the effort of which tends to move the upper end away from the side of the carriage 5 of the head 7.
  • the housing 1 has an opening revealing a part 10 closed by a cover 11 pivoting between two positions around an axis 12 integral with the housing 1 and arranged parallel to guide 2 along the side of the part 10 opposite this guide 2.
  • a pin spring 4 is arranged around the axis 12 between the housing 1 and the cover 11 so that the pin spring 4 tends to make pivot the cover 11 to an open position where it discovers the opening of the case 1.
  • the cover 11 has two side walls (only one of which is shown in Figures 2 and 3) between which extends a desk 13 offering a flat surface facing head 7 and on which the head 7 rests elastically under the action of the spring 9 when the cover 11 is in a position closure as shown in FIG. 2.
  • the cover 11 carries by each of its side walls two stops 14 having a rounded end and arranged opposite one of the other.
  • a pinion pivotally mounted on the housing 1 so that its teeth cooperate with those of a gear wheel portion 11.1 of the cover 11, is coupled to a shock absorber known in itself tending to brake partially the action of the hairpin spring 4 of such so that the opening of the cover 11 is at slow speed.
  • a locking member 17 is pivotally mounted around an axis 22 parallel to the guide 2 and secured by its ends on both sides of part 10 perpendicular to the guide 2.
  • the locking member 17 has two hooks 18 (only one of which is shown in Figures 2 and 3) arranged on either side of a lever 19 extending parallel to the guide 2 and having a end below the lower end of the head 7.
  • the hooks 18 each have a prominence upper 20 of convex profile forming a surface actuating the locking member 17.
  • a spring 21 is disposed between the bottom of the part 10 of the housing 1 and an operating portion 23 of the locking member 17 extending back from the axis 22 on the side opposite the lever 19.
  • the lock 17 pivots between two extreme positions.
  • a first position the end of the lever 19 is located below the lower end of the head 7. This position is reached when, the cover 11 being in its closed position, hooks 18 each hold a stop 14 under the action of the spring 21, or when the hood being in its open position, the latch 17 is supported on the movable element 16 of a push button 15 disposed on the housing 1 directly above the spring 21 (figure 1).
  • a second position corresponding at an intermediate position of the cover 11 between its closed and open positions, rounded end stops 14 integral with the cover 11, bearing on the prominence 20 of the hooks 18 by opposing the effort of the spring 21, controls the pivoting of the lever 19.
  • the end lever 19 then pushed head 7 by pressing its lower end against the effect of the spring 9. In this position, the head 7 is no longer in contact with the console 13.
  • the hooks 18 each retain a stop 14 preventing opening of the cover 11 despite the effort exerted by the hairpin spring 4.
  • the actuation of the button 15 causes its mobile part 16 to slide one end of which presses on the operating portion 23 of the locking member 17 by opposing the force exerted by the spring 21 on this portion of operation 23.
  • the locking member 17 then switches towards its second position.
  • the hooks 18 of the locking 17 then let escape the stops 14 which support 20 prominences and maintain the locking member 17 in its second position itself if the contact between button 15 and the operating portion 23 of the locking member 17 has ceased.
  • the cover 11 being in its open position and the locking member 17 in its first position but in contact with the movable element 16 of the button 15, the cover 11 is gradually closed under the action of the operator opposing the effort of the pin spring 4.
  • the stops 14 come into contact with the prominences 20 causing the progressive pivoting of the locking member 17 towards its second position, thus opposing the action of the spring 21.
  • the locking member 17, for via lever 19, then releases head 7 from path followed by the console 13 secured to the cover 11.
  • the stops 14 leaving the prominences 20 are captured by the hooks 18 of the locking member 17 returning from its second position in its first position under the action exerted by the spring 21 on the maneuvering portion 23.
  • the reminder of the locking member in its first position causes lowering the lever 19 whose end does not oppose then more to the action of the spring 9 which applies again head 7 on console 13.
  • the push button has been shown acting directly on the locking member, the push button can be arranged so that it acts, by a beveled end of its movable part, on the prominence 20 of one of the hooks 18.
  • This variant is shown in Figure 4.
  • the push button 15 a is fixed on the cover 11, above the prominence 20 of one of the hooks 18.
  • the movable part 16 a of this push button has a beveled end 16 b .
  • the mobile part 16 a is held in the upper part of the push button by a spring 15 b of stiffness less than the hairpin spring 4.
  • the beveled end 16 b comes support of the prominence 20 and causes the tilting of the locking member 17 causing the release of the stops 14.
  • the cover 11 then pivots slightly towards its open position under the action of the pin spring 4 causing the compression of the spring 15 b between the body of the push button secured to the cover and the movable part 16a held down by the operator.
  • the stops 14 are then in support of the prominences 20 and the operator can cease pressing on the movable part 16 a to let the cover 11 complete its pivoting.
  • the locking member has been shown with hooks fitted with a prominence, another variation could be make hooks devoid of prominence.
  • the operator must then press the push button 15 during the all of the opening and closing phases, so to ensure, in addition to the release of the stops, the maintenance of the head in the released position.

Abstract

The invention concerns a device for printing a strip medium comprising a frame (1), a carriage (5) mobile in translation along a guide (2) integral with the frame (1) and carrying a pivoting printing head (7) and elastic means (9) arranged between the carriage (5) and the printing head (7), a cover bearing a console and connected pivoting to the frame (1) between a closed position in which the printing head (7) is urged to rest on the console by the elastic means (9) and an open position, a locking member borne by the frame (1) retractable between a first position where it co-operates with a stop integral with the cover and a second position in which it is released from this stop, the locking member (17) being integral with a lever (19) articulated to the frame (1), this lever (19) having an end co-operating with the printing head such that in the displacement of the locking member (17) between its first and second positions, the end of the lever (19) causes the printing head (7) to pivot against the action of the elastic means (9).

Description

La présente invention concerne un dispositif d'impression d'un support, par exemple un tronçon de bande pour former un ticket justificatif d'une transaction.The present invention relates to a device printing a medium, for example a strip of tape to form a ticket justifying a transaction.

Plus particulièrement, l'invention concerne des dispositifs d'impression dans lesquels la tête d'impression -par exemple à jet d'encre, à impacts ou thermique- est reliée pivotante à un chariot se déplaçant en va et vient, transversalement à la bande à imprimer, le long d'un guide rectiligne solidaire d'un bâti. La tête d'impression est maintenue en appui, par un ressort disposé entre le chariot et la tête, contre un pupitre lui faisant face et solidaire du bâti. Après l'exécution d'une ligne d'impression, la bande, par exemple un ruban de papier se présentant sous la forme d'un rouleau déroulé au fur et à mesure de l'impression, est déplacée perpendiculairement au guide entre la tête et le pupitre par l'intermédiaire de galets montés pivotants sur le bâti. Lorsque le rouleau de bande contenu dans le dispositif est épuisé, il faut en installer un autre et amorcer le dispositif en insérant l'extrémité de la bande dans les galets et entre le pupitre et la tête. Dans un tel dispositif, cette mise en place s'avère délicate et toute mauvaise introduction génère des bourrages de la bande.More particularly, the invention relates to printing devices in which the print head - for example inkjet, impact or thermal - is pivotally connected to a carriage moving back and forth, transversely to the strip to be printed, along a guide straight integral with a frame. The print head is held in abutment, by a spring arranged between the carriage and the head, against a desk facing him and united of the frame. After executing a print line, the strip, for example a ribbon of paper under the shape of a roll unrolled as and when printing, is moved perpendicular to the guide between the head and lectern via mounted rollers pivoting on the frame. When the roll of contained tape in the device is exhausted, you must install one other and prime the device by inserting the end of the strip in the rollers and between the desk and the head. In such a device, this implementation turns out tricky and any wrong introduction generates jams Of the band.

Pour remédier à ces inconvénients, on connaít du document WO 96/05062 un dispositif d'impression comportant un bâti sur lequel un capot portant le pupitre et les galets est monté pivotant entre une position de fermeture dans laquelle la tête est en appui sur le pupitre et une position d'ouverture permettant la mise en place d'une bande vierge. Après avoir ouvert le capot on peut insérer un nouveau rouleau de bande, puis ce capot est refermé tandis que l'extrémité libre de la bande est maintenue manuellement de manière à être prise entre le pupitre et la tête une fois le capot dans sa position de fermeture. To overcome these drawbacks, we know of document WO 96/05062 a printing device comprising a frame on which a cover carrying the desk and the rollers is pivotally mounted between a closed position in which the head is supported on the desk and a open position allowing the installation of a blank tape. After opening the hood you can insert a new roll of tape, then this cover is closed while the free end of the strip is held manually so as to be taken between the desk and the head once the cover is in its closed position.

Dans un tel dispositif, la mise en place de la bande est facilitée, mais pendant le déplacement du capot entre ses deux positions, il se produit des chocs et des frottements entre la tête d'impression, contrainte dans une position inclinée par le ressort, et le pupitre. Ces chocs et frottements répétés peuvent conduire à la détérioration de la tête d'impression ou entraíner des jeux entre les différents éléments du dispositif, entraínant la dégradation de la qualité de l'impression.In such a device, the establishment of the tape is facilitated, but during the movement of the cover between its two positions, shocks and friction between the print head, constrained in a inclined position by the spring, and the desk. These shocks and repeated rubbing can lead to deterioration the print head or cause play between different elements of the device, causing degradation the quality of the print.

Selon l'invention, on propose un dispositif d'impression d'un support en bande comportant un bâti, un chariot mobile en translation le long d'un guide solidaire du bâti et portant une tête d'impression pivotante et un moyen élastique disposé entre le chariot et la tête d'impression, un capot portant un pupitre et relié pivotant au bâti entre une position fermée dans laquelle la tête d'impression est maintenue en appui sur le pupitre par le moyen élastique et une position ouverte, un organe de verrouillage porté par le bâti de manière escamotable entre une première position où il coopère avec une butée solidaire du capot et une seconde position dans laquelle il échappe à cette butée, caractérisé en ce que l'organe de verrouillage est solidaire d'un levier articulé au bâti, ce levier possédant une extrémité coopérant avec la tête d'impression de manière que dans le mouvement de l'organe de verrouillage entre sa première et sa seconde position, l'extrémité du levier provoque le pivotement de la tête d'impression à l'encontre de l'effet du moyen élastique.According to the invention, a device is proposed printing of a strip support comprising a frame, a carriage movable in translation along an integral guide of the frame and carrying a pivoting print head and a elastic means arranged between the carriage and the head printing, a cover carrying a desk and swivel connection to the frame between a closed position in which the head is kept pressed on the desk by the elastic means and an open position a locking carried by the frame retractably between a first position where it cooperates with an integral stop of the hood and a second position in which it escapes this stop, characterized in that the locking is secured to a lever articulated to the frame, this lever having one end cooperating with the head printing so that in the movement of the organ locking between its first and its second position, the end of the lever causes the head to pivot printing against the effect of the elastic means.

Ainsi le pivotement de la tête d'impression provoqué par l'extrémité du levier dégage la tête du trajet du pupitre pendant le déplacement du capot entre ses deux positions. La tête n'est donc plus heurtée par le pupitre.Thus the pivoting of the print head caused by the end of the lever clears the head of the path console while moving the cover between its two positions. The head is therefore no longer struck by the desk.

Avantageusement, l'extrémité du levier a une largeur correspondant à la longueur du déplacement du chariot. Advantageously, the end of the lever has a width corresponding to the length of the displacement of the cart.

Ainsi, l'extrémité du levier peut coopérer avec la tête quelle que soit la position du chariot le long du guide.Thus, the end of the lever can cooperate with the head whatever the position of the carriage along the guide.

Selon un mode de réalisation particulier, l'organe de verrouillage comporte une surface de son actionnement entre ses deux positions, coopérant par appui avec la butée lors du pivotement du capot près de sa position de fermeture.According to a particular embodiment, the organ locking device has a surface for its actuation between its two positions, cooperating by pressing with the stop when pivoting the cover near its position closing.

Ainsi, le pivotement de la tête est automatiquement obtenu quand le capot est en fin de course de fermeture ou en début de course d'ouverture.Thus, the pivoting of the head is automatically obtained when the cover is at the end of the closing stroke or at the start of the opening race.

Le bouton poussoir peut être porté par le capot à l'aplomb de la surface d'actionnement quand le capot est dans sa position de fermeture, la manoeuvre du bouton provoquant le déplacement de l'organe de verrouillage de sa première vers sa seconde position par glissement sur la surface d'actionnement.The push button can be carried by the hood directly above the operating surface when the cover is in its closed position, the operation of the button causing the displacement of the locking member of its first to its second position by sliding on the actuation surface.

Le bouton poussoir, dans une variante de réalisation, peut être disposé sur le bâti, la manoeuvre du bouton provoquant le déplacement de l'organe de verrouillage de sa première vers sa seconde position par action sur une portion de manoeuvre de cet organe différente de la surface d'actionnement.The push button, in an alternative embodiment, can be arranged on the frame, the operation of the button causing the displacement of the locking member of its first to its second position per action on a operating part of this organ different from the surface actuation.

Avantageusement, dans ces réalisations, un moyen de rappel élastique est disposé entre le bâti et l'organe de verrouillage pour rappeler l'organe de verrouillage dans sa première position.Advantageously, in these embodiments, a means elastic return is arranged between the frame and the member to recall the locking member in his first position.

D'autres caractéristiques et avantages de l'invention ressortiront de la description qui suit d'un mode de réalisation.Other characteristics and advantages of the invention will emerge from the following description of a mode of achievement.

Il sera fait référence aux dessins annexés parmi lesquels :

  • la figure 1 est une vue simplifiée en perspective du dispositif selon l'invention ;
  • la figure 2 est une vue de côté simplifiée en coupe partielle du dispositif selon l'invention dans une position de fermeture du capot ;
  • la figure 3 est une vue de côté simplifiée en coupe partielle du dispositif selon l'invention dans une position intermédiaire entre les positions de fermeture et d'ouverture du capot ;
  • la figure 4 illustre par une vue semblable à la figure 2 une variante de réalisation de l'invention dans laquelle le bouton poussoir est porté par le capot.
Reference will be made to the accompanying drawings, in which:
  • Figure 1 is a simplified perspective view of the device according to the invention;
  • Figure 2 is a simplified side view in partial section of the device according to the invention in a closed position of the cover;
  • Figure 3 is a simplified side view in partial section of the device according to the invention in an intermediate position between the closed and open positions of the cover;
  • Figure 4 illustrates in a view similar to Figure 2 an alternative embodiment of the invention in which the push button is carried by the cover.

Le bâti, représenté aux figures sous la forme d'un boítier 1, porte une tige formant un guide 2, le long duquel coulisse un chariot 5 constituant de manière connue l'écrou d'un système vis/écrou dont la vis 6 est parallèle au guide 2 et accouplée à un moteur d'entraínement 3 solidaire du boítier 1.The frame, represented in the figures in the form of a housing 1, carries a rod forming a guide 2, along which slides a carriage 5 constituting in known manner the nut of a screw / nut system whose screw 6 is parallel to the guide 2 and coupled to a drive motor 3 secured to the housing 1.

Le chariot 5 porte sur un flanc vertical parallèle à sa direction de coulissement une tête d'impression 7 pivotante autour d'un axe 8 parallèle au guide 2 et solidaire du chariot 5, et un ressort 9 disposé au-dessus de l'axe 8 entre le chariot 5 et la tête 7, dont l'effort tend à éloigner du flanc du chariot 5 l'extrémité supérieure de la tête 7.The carriage 5 carries on a parallel vertical side at its sliding direction a print head 7 pivoting about an axis 8 parallel to the guide 2 and integral with the carriage 5, and a spring 9 disposed above the axis 8 between the carriage 5 and the head 7, the effort of which tends to move the upper end away from the side of the carriage 5 of the head 7.

Le boítier 1 comporte une ouverture découvrant une partie 10 fermée par un capot 11 pivotant entre deux positions autour d'un axe 12 solidaire du boítier 1 et disposé parallèlement au guide 2 le long du côté de la partie 10 opposé à ce guide 2. Un ressort en épingle 4 est disposé autour de l'axe 12 entre le boítier 1 et le capot 11 de telle sorte que le ressort en épingle 4 tend à faire pivoter le capot 11 vers une position d'ouverture où il découvre l'ouverture du boítier 1. Le capot 11 possède deux parois latérales (dont une seule est représentée aux figures 2 et 3) entre lesquelles s'étend un pupitre 13 offrant une surface plane en regard de la tête 7 et sur laquelle la tête 7 s'appuie élastiquement sous l'action du ressort 9 quand le capot 11 est dans une position de fermeture comme représenté à la figure 2. Le capot 11 porte par chacune de ses parois latérales deux butées 14 possédant une extrémité arrondie et disposées en regard l'une de l'autre. Un pignon, non représenté, monté pivotant sur le boítier 1 de manière à ce que ses dents coopèrent avec celles d'une portion de roue dentée 11.1 du capot 11, est attelé à un amortisseur connu en lui-même tendant à freiner partiellement l'action du ressort en épingle 4 de telle sorte que l'ouverture du capot 11 soit à vitesse lente.The housing 1 has an opening revealing a part 10 closed by a cover 11 pivoting between two positions around an axis 12 integral with the housing 1 and arranged parallel to guide 2 along the side of the part 10 opposite this guide 2. A pin spring 4 is arranged around the axis 12 between the housing 1 and the cover 11 so that the pin spring 4 tends to make pivot the cover 11 to an open position where it discovers the opening of the case 1. The cover 11 has two side walls (only one of which is shown in Figures 2 and 3) between which extends a desk 13 offering a flat surface facing head 7 and on which the head 7 rests elastically under the action of the spring 9 when the cover 11 is in a position closure as shown in FIG. 2. The cover 11 carries by each of its side walls two stops 14 having a rounded end and arranged opposite one of the other. A pinion, not shown, pivotally mounted on the housing 1 so that its teeth cooperate with those of a gear wheel portion 11.1 of the cover 11, is coupled to a shock absorber known in itself tending to brake partially the action of the hairpin spring 4 of such so that the opening of the cover 11 is at slow speed.

Un organe de verrouillage 17 est monté pivotant autour d'un axe 22 parallèle au guide 2 et solidaire par ses extrémités de chacun des deux côtés de la partie 10 perpendiculaires au guide 2. L'organe de verrouillage 17 comporte deux crochets 18 (dont un seul est représenté dans les figures 2 et 3) disposés de part et d'autre d'un levier 19 s'étendant parallèlement au guide 2 et ayant une extrémité située au-dessous de l'extrémité inférieure de la tête 7. Les crochets 18 comportent chacun une proéminence supérieure 20 de profil convexe formant une surface d'actionnement de l'organe de verrouillage 17. Un ressort 21 est disposé entre le fond de la partie 10 du boítier 1 et une portion de manoeuvre 23 de l'organe de verrouillage 17 s'étendant en retrait de l'axe 22 du côté opposé au levier 19.A locking member 17 is pivotally mounted around an axis 22 parallel to the guide 2 and secured by its ends on both sides of part 10 perpendicular to the guide 2. The locking member 17 has two hooks 18 (only one of which is shown in Figures 2 and 3) arranged on either side of a lever 19 extending parallel to the guide 2 and having a end below the lower end of the head 7. The hooks 18 each have a prominence upper 20 of convex profile forming a surface actuating the locking member 17. A spring 21 is disposed between the bottom of the part 10 of the housing 1 and an operating portion 23 of the locking member 17 extending back from the axis 22 on the side opposite the lever 19.

On notera, au vu des figures, que l'organe de verrouillage 17 pivote entre deux positions extrêmes. Dans une première position, l'extrémité du levier 19 se trouve au-dessous de l'extrémité inférieure de la tête 7. Cette position est atteinte lorsque, le capot 11 étant dans sa position de fermeture, les crochets 18 retiennent chacun une butée 14 sous l'action du ressort 21, ou lorsque, le capot étant dans sa position d'ouverture, l'organe de verrouillage 17 est en appui sur l'élément mobile 16 d'un bouton poussoir 15 disposé sur le boítier 1 à l'aplomb du ressort 21 (figure 1). Dans une seconde position, correspondant à une position intermédiaire du capot 11 entre ses positions de fermeture et d'ouverture, l'extrémité arrondie des butées 14 solidaires du capot 11, étant en appui sur la proéminence 20 des crochets 18 en s'opposant à l'effort du ressort 21, contrôle le pivotement du levier 19. L'extrémité du levier 19 a alors repoussé la tête 7 par action sur son extrémité inférieure à l'encontre de l'effet du ressort 9. Dans cette position, la tête 7 n'est plus en contact avec le pupitre 13.It will be noted, in view of the figures, that the lock 17 pivots between two extreme positions. In a first position, the end of the lever 19 is located below the lower end of the head 7. This position is reached when, the cover 11 being in its closed position, hooks 18 each hold a stop 14 under the action of the spring 21, or when the hood being in its open position, the latch 17 is supported on the movable element 16 of a push button 15 disposed on the housing 1 directly above the spring 21 (figure 1). In a second position, corresponding at an intermediate position of the cover 11 between its closed and open positions, rounded end stops 14 integral with the cover 11, bearing on the prominence 20 of the hooks 18 by opposing the effort of the spring 21, controls the pivoting of the lever 19. The end lever 19 then pushed head 7 by pressing its lower end against the effect of the spring 9. In this position, the head 7 is no longer in contact with the console 13.

En fonctionnement, le capot 11 étant dans sa position de fermeture et l'organe de verrouillage 17 dans sa première position, les crochets 18 retiennent chacun une butée 14 empêchant l'ouverture du capot 11 malgré l'effort exercé par le ressort en épingle 4. L'actionnement du bouton 15 provoque le coulissement de sa partie mobile 16 dont une extrémité vient appuyer sur la portion de manoeuvre 23 de l'organe de verrouillage 17 en s'opposant à l'effort exercé par le ressort 21 sur cette portion de manoeuvre 23. L'organe de verrouillage 17 bascule alors vers sa seconde position. Les crochets 18 de l'organe de verrouillage 17 laissent alors échapper les butées 14 qui viennent en appui des proéminences 20 et maintiennent l'organe de verrouillage 17 dans sa seconde position même si le contact entre le bouton 15 et la portion de manoeuvre 23 de l'organe de verrouillage 17 a cessé. Dans sa seconde position l'organe de verrouillage 17 appuie, par l'intermédiaire du levier 19, sur l'extrémité inférieure de la tête 7 provoquant son pivotement en s'opposant à l'effort du ressort 9. La tête 7 n'est alors plus au contact du pupitre 13. Sous l'action du ressort en épingle 4 en appui sur le capot 11, l'ouverture du capot se poursuit tandis que du fait du profil des proéminences 20, l'organe de verrouillage 17 revient progressivement dans sa première position sous l'effet des ressorts 21. In operation, the cover 11 being in its closed position and the locking member 17 in its first position, the hooks 18 each retain a stop 14 preventing opening of the cover 11 despite the effort exerted by the hairpin spring 4. The actuation of the button 15 causes its mobile part 16 to slide one end of which presses on the operating portion 23 of the locking member 17 by opposing the force exerted by the spring 21 on this portion of operation 23. The locking member 17 then switches towards its second position. The hooks 18 of the locking 17 then let escape the stops 14 which support 20 prominences and maintain the locking member 17 in its second position itself if the contact between button 15 and the operating portion 23 of the locking member 17 has ceased. In his second position the locking member 17 presses, via lever 19 on the lower end of the head 7 causing it to pivot by opposing the force of the spring 9. Head 7 is no longer in contact with the console 13. Under the action of the hairpin spring 4 resting on the cover 11, the cover continues to open while made of the profile of the protrusions 20, the locking member 17 gradually returns to its first position under the effect of springs 21.

L'ouverture du capot 11 une fois achevée, un opérateur insère un nouveau rouleau de bande.The opening of the cover 11 once completed, a operator inserts a new roll of tape.

Le capot 11 étant dans sa position d'ouverture et l'organe de verrouillage 17 dans sa première position mais au contact de l'élément mobile 16 du bouton 15, le capot 11 est progressivement refermé sous l'action de l'opérateur s'opposant à l'effort du ressort en épingle 4. Les butées 14 viennent au contact des proéminences 20 entraínant le pivotement progressif de l'organe de verrouillage 17 vers sa seconde position, s'opposant ainsi à l'action du ressort 21. L'organe de verrouillage 17, par l'intermédiaire du levier 19, dégage alors la tête 7 du trajet suivi par le pupitre 13 solidaire du capot 11. A la fin du pivotement du capot 11, les butées 14 quittant les proéminences 20 sont capturées par les crochets 18 de l'organe de verrouillage 17 revenant de sa seconde position dans sa première position sous l'action exercée par le ressort 21 sur la portion de manoeuvre 23. Le rappel de l'organe de verrouillage dans sa première position provoque l'abaissement du levier 19 dont l'extrémité ne s'oppose alors plus à l'action du ressort 9 qui applique à nouveau la tête 7 sur le pupitre 13.The cover 11 being in its open position and the locking member 17 in its first position but in contact with the movable element 16 of the button 15, the cover 11 is gradually closed under the action of the operator opposing the effort of the pin spring 4. The stops 14 come into contact with the prominences 20 causing the progressive pivoting of the locking member 17 towards its second position, thus opposing the action of the spring 21. The locking member 17, for via lever 19, then releases head 7 from path followed by the console 13 secured to the cover 11. At the end of the pivoting of the cover 11, the stops 14 leaving the prominences 20 are captured by the hooks 18 of the locking member 17 returning from its second position in its first position under the action exerted by the spring 21 on the maneuvering portion 23. The reminder of the locking member in its first position causes lowering the lever 19 whose end does not oppose then more to the action of the spring 9 which applies again head 7 on console 13.

Bien que le bouton poussoir ait été représenté agissant directement sur l'organe de verrouillage, on peut disposer le bouton poussoir pour qu'il agisse, par une extrémité biseautée de sa partie mobile, sur la proéminence 20 d'un des crochets 18. Cette variante est représentée à la figure 4. Le bouton poussoir 15a est fixé sur le capot 11, au-dessus de la proéminence 20 d'un des crochets 18. La partie mobile 16a de ce bouton poussoir possède une extrémité biseautée 16b. La partie mobile 16a est maintenue en partie haute du bouton poussoir par un ressort 15b de raideur inférieure au ressort en épingle 4. Ainsi, lorsque la partie mobile 16a est enfoncée par l'opérateur, l'extrémité biseautée 16b vient en appui de la proéminence 20 et provoque le basculement de l'organe de verrouillage 17 entraínant la libération des butées 14. Le capot 11 pivote alors légèrement vers sa position ouverte sous l'action du ressort en épingle 4 en provoquant la compression du ressort 15b entre le corps du bouton poussoir solidaire du capot et la partie mobile 16a maintenue enfoncée par l'opérateur. Les butées 14 sont alors en appui des proéminences 20 et l'opérateur peut cesser sa pression sur la partie mobile 16a pour laisser le capot 11 achever son pivotement.Although the push button has been shown acting directly on the locking member, the push button can be arranged so that it acts, by a beveled end of its movable part, on the prominence 20 of one of the hooks 18. This variant is shown in Figure 4. The push button 15 a is fixed on the cover 11, above the prominence 20 of one of the hooks 18. The movable part 16 a of this push button has a beveled end 16 b . The mobile part 16 a is held in the upper part of the push button by a spring 15 b of stiffness less than the hairpin spring 4. Thus, when the mobile part 16 a is pressed by the operator, the beveled end 16 b comes support of the prominence 20 and causes the tilting of the locking member 17 causing the release of the stops 14. The cover 11 then pivots slightly towards its open position under the action of the pin spring 4 causing the compression of the spring 15 b between the body of the push button secured to the cover and the movable part 16a held down by the operator. The stops 14 are then in support of the prominences 20 and the operator can cease pressing on the movable part 16 a to let the cover 11 complete its pivoting.

Par ailleurs, bien que l'organe de verrouillage ait été représenté comportant des crochets équipés d'une proéminence, une autre variante pourrait consister à réaliser des crochets dénués de proéminence. L'opérateur doit alors actionner le bouton poussoir 15 durant la totalité des phases d'ouverture et de fermeture, de manière à assurer, outre la libération des butées, le maintien de la tête en position dégagée.By the way, although the locking member has been shown with hooks fitted with a prominence, another variation could be make hooks devoid of prominence. The operator must then press the push button 15 during the all of the opening and closing phases, so to ensure, in addition to the release of the stops, the maintenance of the head in the released position.

Claims (6)

  1. A printer device for printing on a strip medium, the device comprising a body (1), a carriage (5) movable in translation along a guide (2) secured to the body (1) and carrying a pivoting print head (7), and resilient means (9) disposed between the carriage (5) and the print head (7), a cover (11) carrying a platen (13) and pivotally connected to the body (1) to pivot between an open position and a closed position in which the print head (7) is held pressed against the platen (13) by the resilient means (9), a locking member (17) of the cover (11) carried by the body (1) in retractable manner between a first position in which it co-operates with an abutment (14) secured to the cover (11) and a second position in which it escapes from said abutment, the printer device being characterized in that the locking member (17) is secured to a lever (19) hinged to the body (1), said lever (19) having an end that co-operates with the print head (7) in such a manner that during the movement of the locking member (17) between its first and second positions, the end of the lever (19) causes the print head (7) to pivot against the effect of the resilient means (9).
  2. A printer device according to claim 1, characterized in that the end of the lever (9) is of a width that corresponds to the length of the displacement of the carriage (5).
  3. A printer device according to either preceding claim, characterized in that the locking member (17) includes a camming surface (20) for moving it between its two positions, the camming surface co-operating with the abutment (14) by pressing thereagainst while the cover (11) is pivoting close to its closed position.
  4. A printer device according to claim 3, characterized in that a pushbutton (15a) is carried by the cover (11) over the camming surface (20) when the cover (5) is in its closed position, action on the pushbutton causing the locking member (17) to be move from its first position towards its second position by sliding on the camming surface.
  5. A printer device according to claim 3, characterized in that a pusbhutton (15) is located on the body (1), operating the pushbutton (15) causing the locking member (17) to move from its first position towards its second position by acting on a drive portion (23) of said member.
  6. A printer device according to any preceding claim, characterized in that resilient return means are disposed between the body (1) and the locking member (17) to return the locking member (17) to its first position.
EP97913242A 1996-11-12 1997-11-04 Device for printing a strip medium Expired - Lifetime EP0900144B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9613744A FR2755641B1 (en) 1996-11-12 1996-11-12 TAPE MEDIA PRINTING DEVICE
FR9613744 1996-11-12
PCT/FR1997/001970 WO1998021042A1 (en) 1996-11-12 1997-11-04 Device for printing a strip medium

Publications (2)

Publication Number Publication Date
EP0900144A1 EP0900144A1 (en) 1999-03-10
EP0900144B1 true EP0900144B1 (en) 2001-03-14

Family

ID=9497519

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97913242A Expired - Lifetime EP0900144B1 (en) 1996-11-12 1997-11-04 Device for printing a strip medium

Country Status (7)

Country Link
EP (1) EP0900144B1 (en)
JP (1) JP3217797B2 (en)
AT (1) ATE199683T1 (en)
DE (1) DE69704271T2 (en)
ES (1) ES2156370T3 (en)
FR (1) FR2755641B1 (en)
WO (1) WO1998021042A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2825317B1 (en) * 2001-05-29 2003-10-31 Sagem PRINTING MACHINE WITH HOOD UNLOCK
KR101066585B1 (en) 2005-04-25 2011-09-22 가부시키가이샤 아루박 Rotatable printhead array

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60201979A (en) * 1984-03-27 1985-10-12 Sato :Kk Opening and closing mechanism for printing head in printer
JPS61242863A (en) * 1985-04-22 1986-10-29 Matsushita Electric Ind Co Ltd Printer
JPS6341159A (en) * 1986-08-06 1988-02-22 Fuji Xerox Co Ltd Thermal head positioning mechanism of line scanning type thermal recording apparatus
CA1324027C (en) * 1988-06-21 1993-11-09 Susumu Mitsushima Thermal printing system
JPH02299870A (en) * 1989-05-15 1990-12-12 Brother Ind Ltd Printer
US5424760A (en) * 1993-02-08 1995-06-13 Eastman Kodak Company Cover interlock mechasnism for a thermal printer locks cover while printing

Also Published As

Publication number Publication date
DE69704271D1 (en) 2001-04-19
ES2156370T3 (en) 2001-06-16
FR2755641B1 (en) 1998-12-24
FR2755641A1 (en) 1998-05-15
EP0900144A1 (en) 1999-03-10
JPH11502164A (en) 1999-02-23
JP3217797B2 (en) 2001-10-15
ATE199683T1 (en) 2001-03-15
DE69704271T2 (en) 2001-10-11
WO1998021042A1 (en) 1998-05-22

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