EP1218200B1 - Device for unlocking a compartment of an opening mechanism - Google Patents

Device for unlocking a compartment of an opening mechanism Download PDF

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Publication number
EP1218200B1
EP1218200B1 EP00946018A EP00946018A EP1218200B1 EP 1218200 B1 EP1218200 B1 EP 1218200B1 EP 00946018 A EP00946018 A EP 00946018A EP 00946018 A EP00946018 A EP 00946018A EP 1218200 B1 EP1218200 B1 EP 1218200B1
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EP
European Patent Office
Prior art keywords
cover
lever
frame
compartment
rotation
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Expired - Lifetime
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EP00946018A
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German (de)
French (fr)
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EP1218200A1 (en
Inventor
Denis Claude Jean Montagutelli
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Aps Engineering Sarl Ste
APS Engineering SARL
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Aps Engineering Sarl Ste
APS Engineering SARL
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Publication of EP1218200A1 publication Critical patent/EP1218200A1/en
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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
    • B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • B41J29/12—Guards, shields or dust excluders
    • B41J29/13—Cases or covers

Definitions

  • the present invention relates to a device for unlocking a compartment of a opening mechanism as known from US-A-5 041 872, and in particular a thermal printing mechanism, the device for unlocking mechanism intended to facilitate the loading and unloading of the paper used in a such a thermal printing device.
  • the printing mechanisms generally consist of a print head attached to a frame.
  • the thermal print head comprises a ceramic support that carries the line of hot spots and chips or integrated circuits controlling their power supply.
  • the head impression can rotate relative to the frame, most generally along an axis parallel to a longitudinal side of the frame.
  • a roll is secured to the frame so that its longitudinal axis it is also parallel to a longitudinal side of the frame.
  • the print head is held by a spring resting on the roll. The position of the roller must therefore be perfectly controlled to to achieve perfect alignment with the thermal print head.
  • the print media is generally consisting of a paper roll whose one face is sensitive to heat. This printing roller is rotated by means of a roller drive, still called capstan, which itself is powered by a system of pinions and a small motor electric.
  • the compartment intended to receive the roll of paper is closed by a lid consisting of a or several articulated parts, the cover supporting the printing roller and allowing to bring the printing roller into contact with the frame.
  • the locking of the roller on the print head is achieved by a spring secured to the frame bringing the roller into contact with the print head and between which the paper intended to be printed.
  • Pressing the printhead on the roller locks the system into position closed, or by a condition on the respective positions of the axis of rotation of the lid and of the direction of support of the print head, either by a condition on the shape of the spring or on the shape of the chassis.
  • the present invention is placed in this context and is intended to provide a device thermal printing device in which the compartment cover for receiving the roll paper can be manipulated in both the opening and closing directions in a simple way and without requiring significant efforts, the opening and closing mechanism must contain only a reduced number of pieces so as not to have a negative impact on the cost of such a printing device and its reliability.
  • the present invention relates to a device for unlocking a compartment an opening mechanism, in particular a thermal printing mechanism, comprising a frame, the compartment being intended to receive a roll of paper, and being closed by a lid.
  • a lever is rotatably mounted on the lid and has a portion the lever comprising stops capable of cooperating with flanks of the chassis to cause rotation of the cover relative to the chassis when the lever is rotated relative to the lid.
  • the operating portion of the lever is received in an opening of the lid.
  • the opening is formed on the middle portion of its main face, and dwellings are formed on portions extending perpendicularly to the main face of the lid.
  • the housings are formed between openings intended to cooperate with pins secured to the frame and allowing rotation of the lid relative to the frame and slots for receiving the ends of the axis of a roll support and drive paper issued by the roll of paper.
  • the lever comprises a maneuvering part, of substantially complementary to that of the opening of the lid, and it is provided with extensions their free ends of the axes of rotation intended to engage in the formed housing in the cover, and stops for cooperating with flanks of the frame.
  • thermal printing mechanism comprising a compartment intended to receive a roll of paper, this compartment being closed by a lid itself equipped with a locking device to facilitate loading and unloading the paper used in such a thermal printing device, the opening of the lid being facilitated by a lever made according to the present invention.
  • the thermal printing mechanism is quite similar to that which has been described in the document FR-A-2 760 684 in the name of the applicant, the content of which is supposed to be integrated by reference in the present description and which will therefore not be described in more detail.
  • the figures show the lid of the compartment intended to receive the roll of paper.
  • the lid being designated as a whole by the reference 10.
  • the lid 10 is rectangular general configuration and has at the ends of one of its sides openings 12 for receiving pins (not shown) secured to the frame and allowing the tilting or rotation of the cover 10 on the frame.
  • the lid 10 has on the ends of the opposite side to that which carries the openings 12 of the slots 14 for receiving the ends of the axis of a roll (not shown) of support and training paper issued by the paper roll (not shown).
  • the lid 10 is provided on the middle part of its main face with an opening 16, generally rectangular shape, and housing 18 formed on portions 20 extending perpendicular to the main face between the openings 12 and the slots 14.
  • a lever shown in more detail in FIG. 2, and designated in FIG. its entirety by the reference 22, comprises a main part 24, of substantially complementary to that of the opening 16 of the cover 10, and forming a maneuvering part.
  • the lever 22 is provided on the ends of one of its long sides with extensions 26 carrying themselves at their free ends of the axes of rotation 28 and stops 30.
  • the axes of 28 are intended to come engage by clipping in the housing 18 formed in the cover 10, as shown in Figures 5 and 6.
  • the lever 22 is fixed by clipping in the cover 10, the axes of rotation 28 of the lever 22 being forcibly engaged in the housing 18 of the cover 10.
  • the latter can then be installed on the chassis of the thermal printing mechanism via openings 12 arranged around pins integral with the frame.
  • the lid can then be closed simply by pressing on it. Indeed, the lever is free in the lid and presents no obstacle to this closing movement.
  • the stops 30 come to bear on the flanks of the frame.
  • the force exerted by the user at the end of the operating portion 24 is exerted by the stops 30 on the flanks of the chassis, this effort is finding multiplied by the ratio between the existing lever arms between the end of the the operating portion 24 and the axes of rotation 28, and secondly between the axes of rotation 28 and the stops 30.
  • the ratio between these lever arms can be very important, and preferably greater than ten.
  • the opening of the lid 10 can therefore be done in a particularly ergonomic way for the user, who does not have to deploy a important effort to achieve this openness.
  • thermal printing device in which the cover of the compartment for receiving the roll of paper can be maneuvered in the sense of opening as in the sense of closing in a simple way and without requiring significant effort, the opening and closing mechanism having only one piece, playing both the roles of gripping member or maneuvering, axis of rotation of the lever by relative to the lid, and stop the lever on the chassis.
  • a lever is therefore of a cost particularly reduced, as well as that of the lid that it is intended to equip, so that the cost price and reliability of the printing mechanism are not altered.

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  • Accessory Devices And Overall Control Thereof (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Massaging Devices (AREA)
  • Catching Or Destruction (AREA)
  • Lock And Its Accessories (AREA)

Abstract

The invention concerns a device for unlocking a compartment of an opening mechanism, comprising a frame, the compartment being designed to receive a paper roll, and being closed with a cover (10). The invention is characterised in that a lever (22) is mounted rotating on the cover (10) and comprises a manoeuvring part (24), the lever (22) comprising stop elements (30) capable of co-operating with the sides of the frame to cause the cover (10) to rotate relative to the frame when the lever (22) is rotated relative to the cover (10). The invention is applicable to opening mechanisms for thermal printing machines.

Description

La presente invention concerne un dispositif de déverrouillage d'un compartiment d'un mecanisme ouvrant tel que connu du document US-A-5 041 872, et notamment d'un mécanisme d'impression thermique, le dispositif de deverrouillage etant destiné à faciliter le chargement et le déchargement du papier utilisé dans un tel dispositif d'impression thermique.The present invention relates to a device for unlocking a compartment of a opening mechanism as known from US-A-5 041 872, and in particular a thermal printing mechanism, the device for unlocking mechanism intended to facilitate the loading and unloading of the paper used in a such a thermal printing device.

Les mécanismes d'impression sont généralement constitués d'une tête d'impression fixée à un bâti. La tête d'impression thermique comprend un support en céramique qui porte la ligne de points chauffants et des puces ou circuits intégrés de commande de leur alimentation. La tête d'impression peut pivoter par rapport au bâti, le plus généralement selon un axe parallèle à un côté longitudinal du bâti. Un rouleau est solidaire du bâti de façon à ce que son axe longitudinal soit lui aussi parallèle à un côté longitudinal du bâti. La tête d'impression est maintenue par un ressort en appui sur le rouleau. La position du rouleau doit donc être parfaitement contrôlée afin d'obtenir un alignement parfait avec la tête d'impression thermique. Le support d'impression est de manière générale constitué d'un rouleau de papier dont une face est sensible à la chaleur. Ce rouleau d'impression est entraíné en rotation au moyen d'un rouleau d'entraínement, encore appelé cabestan, qui lui même est actionné par un système de pignons et par un petit moteur électrique.The printing mechanisms generally consist of a print head attached to a frame. The thermal print head comprises a ceramic support that carries the line of hot spots and chips or integrated circuits controlling their power supply. The head impression can rotate relative to the frame, most generally along an axis parallel to a longitudinal side of the frame. A roll is secured to the frame so that its longitudinal axis it is also parallel to a longitudinal side of the frame. The print head is held by a spring resting on the roll. The position of the roller must therefore be perfectly controlled to to achieve perfect alignment with the thermal print head. The print media is generally consisting of a paper roll whose one face is sensitive to heat. This printing roller is rotated by means of a roller drive, still called capstan, which itself is powered by a system of pinions and a small motor electric.

Dans le cas de mécanismes ouvrants pour des dispositifs d'impression thermique, le compartiment destiné à recevoir le rouleau de papier est fermé par un couvercle constitué d'une ou de plusieurs pièces articulées, le couvercle supportant le rouleau d'impression et permettant d'amener le rouleau d'impression au contact du châssis. In the case of opening mechanisms for thermal printing devices, the compartment intended to receive the roll of paper is closed by a lid consisting of a or several articulated parts, the cover supporting the printing roller and allowing to bring the printing roller into contact with the frame.

Le verrouillage du rouleau sur la tête d'impression est réalisé par un ressort solidaire du châssis amenant le rouleau en contact avec la tête d'impression et entre lesquels s'insère le papier destiné à être imprimé.The locking of the roller on the print head is achieved by a spring secured to the frame bringing the roller into contact with the print head and between which the paper intended to be printed.

La pression de la tête d'impression sur le rouleau permet de verrouiller le système en position fermée, soit par une condition sur les positions respectives de l'axe de rotation du couvercle et de la direction d'appui de la tête d'impression, soit par une condition sur la forme du ressort ou sur la forme du châssis.Pressing the printhead on the roller locks the system into position closed, or by a condition on the respective positions of the axis of rotation of the lid and of the direction of support of the print head, either by a condition on the shape of the spring or on the shape of the chassis.

De manière à être fiables, les systèmes de verrouillage connus nécessitent une pression assez forte de la tête d'impression sur le rouleau afin d'assurer un alignement correct entre la tête d'impression et le rouleau, et afin de ne pas pouvoir s'ouvrir trop facilement par exemple sous l'effet d'une chute ou d'un choc ou lorsqu'une traction est exercée sur le papier. étant exercée àIn order to be reliable, known locking systems require enough pressure strong print head on the roller to ensure proper alignment between the head of printing and the roll, and in order not to be able to open too easily for example under the effect of a fall or shock or when traction is exerted on the paper. being exercised

Le fait d'exercer une telle pression pour assurer la fermeture, cette pression étant exercée à l'encontre d'une résistance relativement importante, ne pose en général pas de problème à l'utilisateur, puisqu'il suffit toujours de presser sur le couvercle pour le fermer. Par contre, il en résulte que l'effort à exercer pour ouvrir le couvercle est lui aussi relativement important. L'action d'ouverture du couvercle consiste à exercer une traction sur ce dernier en des endroits pourvus de rainures à cet effet. L'effort important à exercer peut alors résulter en un dégagement brusque du couvercle, qui peut avoir pour effet une rupture de celui-ci. D'autre part, ces mécanismes sont de manière générale de petite taille, de sorte que l'utilisateur se trouve peu enclin à exercer une traction importante sur de tels mécanismes, ce qui pose un problème d'ergonomie. De plus, si l'utilisateur n'exerce pas une traction sur le couvercle dans une direction rigoureusement perpendiculaire à son axe de rotation, le couvercle se vrille ou se casse, de sorte que le dispositif d'impression lui-même ne peut plus fonctionner correctement.The fact of exerting such pressure to ensure the closure, this pressure being exerted to against a relatively high resistance, does not pose a problem in general. the user, since it is always enough to press on the lid to close it. On the other hand, he As a result, the effort required to open the lid is also relatively important. The action of opening the lid consists in exerting a traction on the latter in places provided with grooves for this purpose. The important effort to exert can then result in a clearance abrupt cover, which may have the effect of breaking it. On the other hand, these mechanisms are generally small, so that the user can not find inclined to exert a significant pull on such mechanisms, which poses a problem ergonomics. In addition, if the user does not pull on the cover in one direction rigorously perpendicular to its axis of rotation, the lid is twisted or broken, so that the printing device itself can no longer function properly.

La présente invention se place dans ce contexte et a pour objet de proposer un dispositif d'impression thermique dans lequel le couvercle du compartiment destiné à recevoir le rouleau de papier puisse être manoeuvré dans le sens de l'ouverture comme dans le sens de la fermeture de façon simple et sans nécessiter d'efforts importants, le mécanisme d'ouverture et de fermeture ne devant comporter qu'un nombre de pièces réduit de manière à ne pas influer négativement sur le coût d'un tel dispositif d'impression et sur sa fiabilité.The present invention is placed in this context and is intended to provide a device thermal printing device in which the compartment cover for receiving the roll paper can be manipulated in both the opening and closing directions in a simple way and without requiring significant efforts, the opening and closing mechanism must contain only a reduced number of pieces so as not to have a negative impact on the cost of such a printing device and its reliability.

Dans ce but. la présente invention a pour objet un dispositif de déverrouillage d'un compartiment d'un mécanisme ouvrant, notamment d'un mécanisme d'impression thermique, comprenant un châssis, le compartiment étant destiné à recevoir un rouleau de papier, et étant fermé par un couvercle.For this reason. the present invention relates to a device for unlocking a compartment an opening mechanism, in particular a thermal printing mechanism, comprising a frame, the compartment being intended to receive a roll of paper, and being closed by a lid.

Selon la présente invention, un levier est monté à rotation sur le couvercle et comporte une partie de manoeuvre, le levier comportant des butées susceptibles de coopérer avec des flancs du châssis pour provoquer la rotation du couvercle par rapport au châssis lorsque le levier est soumis à une rotation par rapport au couvercle.According to the present invention, a lever is rotatably mounted on the lid and has a portion the lever comprising stops capable of cooperating with flanks of the chassis to cause rotation of the cover relative to the chassis when the lever is rotated relative to the lid.

Selon une caractéristique de la présente invention, la partie de manoeuvre du levier est reçue dans une ouverture du couvercle.According to a feature of the present invention, the operating portion of the lever is received in an opening of the lid.

De préférence, l'ouverture est formée sur la partie médiane de sa face principale, et des logements sont formés sur des portions s'étendant perpendiculairement à la face principale du couvercle.Preferably, the opening is formed on the middle portion of its main face, and dwellings are formed on portions extending perpendicularly to the main face of the lid.

Selon une caractéristique de l'invention, les logements sont formés entre des ouvertures destinées à coopérer avec des pions solidaires du châssis et permettant la rotation du couvercle par rapport au châssis et des fentes destinées à recevoir les extrémités de l'axe d'un rouleau d'appui et d'entraínement du papier délivré par le rouleau de papier.According to one characteristic of the invention, the housings are formed between openings intended to cooperate with pins secured to the frame and allowing rotation of the lid relative to the frame and slots for receiving the ends of the axis of a roll support and drive paper issued by the roll of paper.

De manière avantageuse, le levier comporte une partie de manoeuvre, de forme sensiblement complémentaire à celle de l'ouverture du couvercle, et il est muni de prolongements portant à leurs extrémités libres des axes de rotation destinés à venir s'engager dans les logements formés dans le couvercle, et des butées destinées à coopérer avec des flancs du châssis. Advantageously, the lever comprises a maneuvering part, of substantially complementary to that of the opening of the lid, and it is provided with extensions their free ends of the axes of rotation intended to engage in the formed housing in the cover, and stops for cooperating with flanks of the frame.

D'autres buts, caractéristiques et avantages de la présente invention ressortiront plus clairement de la description qui suit d'un exemple de réalisation donné à titre illustratif, en référence aux dessins annexés sur lesquels:

  • la Figure 1 représente une vue en perspective du couvercle d'obturation du compartiment destiné à recevoir le rouleau de papier, en vue de dessous;
  • la Figure 2 représente une vue en perspective du levier équipant le couvercle de la Figure 1, en vue de deux tiers arrière;
  • la Figure 3 représente une vue en perspective du châssis d'impression et du levier représenté sur la Figure 2, le couvercle étant omis par souci de clarté;
  • la Figure 4 représente une vue en perspective du couvercle d'obturation du compartiment destiné à recevoir le rouleau de papier, en vue de dessous sous un autre angle que celui de la Figure 1;
  • la Figure 5 représente une vue en perspective du couvercle d'obturation du compartiment destiné à recevoir le rouleau de papier, en vue de dessous et équipé du levier selon la présente invention, le levier étant en position fermée;
  • la Figure 6 représente une vue en perspective du couvercle d'obturation du compartiment destiné à recevoir le rouleau de papier, en vue de dessous et équipé du levier selon la présente invention, le levier étant en position d'ouverture, et
  • la Figure 7 représente une vue en perspective du châssis d'impression et du levier représenté sur la Figure 2 sous un autre angle que celui de la Figure 3.
Other objects, features and advantages of the present invention will emerge more clearly from the following description of an exemplary embodiment given by way of illustration, with reference to the appended drawings in which:
  • Figure 1 shows a perspective view of the closure cover of the compartment for receiving the roll of paper, seen from below;
  • Figure 2 shows a perspective view of the lever fitted to the cover of Figure 1, in view of two thirds rear;
  • Figure 3 is a perspective view of the printing frame and the lever shown in Figure 2 with the cover omitted for clarity;
  • Figure 4 is a perspective view of the shutter cover of the compartment for receiving the roll of paper, viewed from below under another angle than that of Figure 1;
  • Figure 5 is a perspective view of the closure cover of the compartment for receiving the roll of paper, viewed from below and equipped with the lever according to the present invention, the lever being in the closed position;
  • FIG. 6 is a perspective view of the closure cover of the compartment intended to receive the roll of paper, seen from below and equipped with the lever according to the present invention, the lever being in the open position, and
  • Figure 7 shows a perspective view of the printing frame and the lever shown in Figure 2 at a different angle than that of Figure 3.

On a représenté sur les Figures un mécanisme d'impression thermique comportant un compartiment destiné à recevoir un rouleau de papier, ce compartiment étant fermé par un couvercle muni lui-même d'un dispositif de verrouillage destiné à faciliter le chargement et le déchargement du papier utilisé dans un tel dispositif d'impression thermique, l'ouverture du couvercle étant facilitée par un levier réalisé conformément à la présente invention. Le mécanisme d'impression thermique est tout à fait semblable à celui qui a été décrit dans le document FR-A-2 760 684 au nom de la demanderesse, dont le contenu est supposé intégré par référence dans la présente description et qui ne sera donc pas décrit plus en détail. There is shown in the figures a thermal printing mechanism comprising a compartment intended to receive a roll of paper, this compartment being closed by a lid itself equipped with a locking device to facilitate loading and unloading the paper used in such a thermal printing device, the opening of the lid being facilitated by a lever made according to the present invention. The thermal printing mechanism is quite similar to that which has been described in the document FR-A-2 760 684 in the name of the applicant, the content of which is supposed to be integrated by reference in the present description and which will therefore not be described in more detail.

On a représenté sur les Figures le couvercle du compartiment destiné à recevoir le rouleau de papier. le couvercle étant désigné dans son ensemble par la référence 10. Le couvercle 10 est de configuration générale rectangulaire et comporte aux extrémités de l'un de ses côtés des ouvertures 12 destinées à recevoir des pions (non représentés) solidaires du châssis et permettant le basculement ou la rotation du couvercle 10 sur le châssis. Le couvercle 10 comporte sur les extrémités du côté opposé à celui qui porte les ouvertures 12 des fentes 14 destinées à recevoir les extrémités de l'axe d'un rouleau (non représenté) d'appui et d'entraínement du papier délivré par le rouleau de papier (non représenté).The figures show the lid of the compartment intended to receive the roll of paper. the lid being designated as a whole by the reference 10. The lid 10 is rectangular general configuration and has at the ends of one of its sides openings 12 for receiving pins (not shown) secured to the frame and allowing the tilting or rotation of the cover 10 on the frame. The lid 10 has on the ends of the opposite side to that which carries the openings 12 of the slots 14 for receiving the ends of the axis of a roll (not shown) of support and training paper issued by the paper roll (not shown).

Le couvercle 10 est muni sur la partie médiane de sa face principale d'une ouverture 16, de forme générale rectangulaire, et de logements 18 formés sur des portions 20 s'étendant perpendiculairement à la face principale entre les ouvertures 12 et les fentes 14.The lid 10 is provided on the middle part of its main face with an opening 16, generally rectangular shape, and housing 18 formed on portions 20 extending perpendicular to the main face between the openings 12 and the slots 14.

Selon la présente invention, un levier, représenté plus en détail sur la Figure 2, et désigné dans son ensemble par la référence 22, comporte une partie principale 24, de forme sensiblement complémentaire à celle de l'ouverture 16 du couvercle 10, et formant une partie de manoeuvre. Le levier 22 est muni sur les extrémités de l'un de ses grands côtés de prolongements 26 portant eux-mêmes à leurs extrémités libres des axes de rotation 28 et des butées 30. Les axes de rotation 28 sont destinés à venir s'engager par clipsage dans les logement 18 formés dans le couvercle 10, ainsi qu'on l'a représenté sur les Figures 5 et 6.According to the present invention, a lever, shown in more detail in FIG. 2, and designated in FIG. its entirety by the reference 22, comprises a main part 24, of substantially complementary to that of the opening 16 of the cover 10, and forming a maneuvering part. The lever 22 is provided on the ends of one of its long sides with extensions 26 carrying themselves at their free ends of the axes of rotation 28 and stops 30. The axes of 28 are intended to come engage by clipping in the housing 18 formed in the cover 10, as shown in Figures 5 and 6.

Comme on vient de le voir, le levier 22 est fixé par clipsage dans le couvercle 10, les axes de rotation 28 du levier 22 étant engagés à force dans les logements 18 du couvercle 10. Ce dernier peut alors être installé sur le châssis du mécanisme d'impression thermique par l'intermédiaire des ouvertures 12 disposées autour de pions solidaires du châssis.As we have just seen, the lever 22 is fixed by clipping in the cover 10, the axes of rotation 28 of the lever 22 being forcibly engaged in the housing 18 of the cover 10. The latter can then be installed on the chassis of the thermal printing mechanism via openings 12 arranged around pins integral with the frame.

Le couvercle peut alors être refermé simplement par appui sur lui. En effet, le levier est libre dans le couvercle et ne présente aucun obstacle à ce mouvement de fermeture.The lid can then be closed simply by pressing on it. Indeed, the lever is free in the lid and presents no obstacle to this closing movement.

Lorsque l'utilisateur désire provoquer l'ouverture du couvercle, pour installer un nouveau rouleau de papier ou remplacer celui qui était présent auparavant dans le compartiment fermé par le couvercle 10, il lui suffit de saisir le levier 22 par sa partie de manoeuvre 24, dépassant légèrement de la face supérieure du couvercle 10. Il lui suffit pour cela d'intercepter le levier à l'aide d'un ongle ou de l'extrémité d'un instrument pointu. Le levier 22 pivote alors par rapport au couvercle 10 grâce aux axes e rotation 28 libres de tourner dans les logements 18 du couvercle 10.When the user wants to open the lid, to install a new roll paper or replace the one previously present in the compartment closed by the 10 cover, it is sufficient to grasp the lever 22 by its operating portion 24, exceeding lightly from the upper face of the cover 10. It suffices for it to intercept the lever to using a fingernail or the tip of a sharp instrument. The lever 22 then pivots relative to the lid 10 thanks to the axes e rotation 28 free to rotate in the housing 18 of the lid 10.

Dans un premier temps du mouvement de rotation du levier 22 par rapport au couvercle 10, les butées 30 viennent en appui sur les flancs du châssis. Dans un deuxième temps du mouvement de rotation du levier 22 par rapport au couvercle 10, l'effort exercé par l'utilisateur à l'extrémité de la partie de manoeuvre 24 est exercé par les butées 30 sur les flancs du châssis, cet effort se trouvant démultiplié par le rapport entre les bras de levier existant entre d'une part l'extrémité de la partie de manoeuvre 24 et les axes de rotation 28, et d'autre part entre les axes de rotation 28 et les butées 30. Comme on peut le voir sur les Figures, le rapport entre ces bras de levier peut être très important, et de manière préférée supérieur à dix. L'ouverture du couvercle 10 peut donc s'effectuer de manière particulièrement ergonomique pour l'utilisateur, qui n'a pas à déployer un effort important pour parvenir à cette ouverture.In a first step of the rotation movement of the lever 22 relative to the cover 10, the stops 30 come to bear on the flanks of the frame. In a second step of the movement of rotation of the lever 22 relative to the lid 10, the force exerted by the user at the end of the operating portion 24 is exerted by the stops 30 on the flanks of the chassis, this effort is finding multiplied by the ratio between the existing lever arms between the end of the the operating portion 24 and the axes of rotation 28, and secondly between the axes of rotation 28 and the stops 30. As can be seen in the figures, the ratio between these lever arms can be very important, and preferably greater than ten. The opening of the lid 10 can therefore be done in a particularly ergonomic way for the user, who does not have to deploy a important effort to achieve this openness.

On a donc bien réalisé selon la présente invention un dispositif d'impression thermique dans lequel le couvercle du compartiment destiné à recevoir le rouleau de papier peut être manoeuvré dans le sens de l'ouverture comme dans le sens de la fermeture de façon simple et sans nécessiter d'efforts importants, le mécanisme d'ouverture et de fermeture ne comportant qu'une seule pièce, jouant à la fois les rôles d'organe de préhension ou de manoeuvre, d'axe de rotation du levier par rapport au couvercle, et de butée du levier sur le châssis. Un tel levier est donc d'un coût particulièrement réduit, de même que celui du couvercle qu'il est destiné à équiper, de sorte que le prix de revient et la fiabilité du mécanisme d'impression ne s'en trouvent pas altérés.It has therefore been realized according to the present invention a thermal printing device in which the cover of the compartment for receiving the roll of paper can be maneuvered in the sense of opening as in the sense of closing in a simple way and without requiring significant effort, the opening and closing mechanism having only one piece, playing both the roles of gripping member or maneuvering, axis of rotation of the lever by relative to the lid, and stop the lever on the chassis. Such a lever is therefore of a cost particularly reduced, as well as that of the lid that it is intended to equip, so that the cost price and reliability of the printing mechanism are not altered.

Bien entendu, l'invention n'est pas limitée aux modes de réalisation qui ont été décrits, mais elle est susceptible au contraire de recevoir de nombreuses modifications qui apparaítront à l'homme du métier sans sortir de son cadre.Of course, the invention is not limited to the embodiments that have been described, but is likely to receive many changes that will appear to man of the profession without going beyond its scope.

Claims (5)

  1. Unlocking device of a compartment of an opening mechanism, especially of a thermal printing mechanism, having a frame, the compartment being designed to receive a roll of paper, and being closed by a cover (10), characterized in that a lever (22) is mounted in rotation on the cover (10) and includes a manoeuvre part (24), the lever (22) includes abutments (30) capable of co-operating with the sides of the frame causing the rotation of the cover (10) in relation to the frame when the lever (22) is submitted to a rotation in relation to the cover (10).
  2. Unlocking device according to claim 1, characterized in that the manoeuvre part (24) of the lever (22) is received in an opening (16) of the cover (10).
  3. Unlocking device according to claim 2, characterized in that the opening (16) is formed on the median part of its main face, and in that housings (18) are formed on parts (20) extending perpendicularly to the main face of the cover (10).
  4. Unlocking device according to claim 3, characterized in that the housings (18) are formed between openings (12) designed to co-operate with solidary pions of the frame allowing rotation of the cover (10) in relation to the frame and the slots (14) designed to receive the ends of the axis of a support and carrying roll of the paper delivered by the roll of paper.
  5. Unlocking device according to claim 1, characterized in that the lever (22) includes a manoeuvre part (24), with a shape significantly complementary to that of the opening (16) of the cover (10), and in that it is provided with extensions (26) carrying rotation axes (28) to their free ends designed to fit into the housings (18) formed in the cover (10), and the abutments (30) designed to co-operate with the sides of the frame.
EP00946018A 1999-07-09 2000-06-26 Device for unlocking a compartment of an opening mechanism Expired - Lifetime EP1218200B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9909312A FR2796001B1 (en) 1999-07-09 1999-07-09 DEVICE FOR UNLOCKING A COMPARTMENT OF AN OPENING MECHANISM
FR9909312 1999-07-09
PCT/FR2000/001783 WO2001003939A1 (en) 1999-07-09 2000-06-26 Device for unlocking a compartment of an opening mechanism

Publications (2)

Publication Number Publication Date
EP1218200A1 EP1218200A1 (en) 2002-07-03
EP1218200B1 true EP1218200B1 (en) 2003-11-26

Family

ID=9548232

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00946018A Expired - Lifetime EP1218200B1 (en) 1999-07-09 2000-06-26 Device for unlocking a compartment of an opening mechanism

Country Status (10)

Country Link
US (1) US6802603B1 (en)
EP (1) EP1218200B1 (en)
CN (1) CN1195636C (en)
AT (1) ATE255015T1 (en)
AU (1) AU5992000A (en)
CA (1) CA2379390A1 (en)
DE (1) DE60006837T2 (en)
ES (1) ES2212776T3 (en)
FR (1) FR2796001B1 (en)
WO (1) WO2001003939A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4645446B2 (en) * 2005-12-27 2011-03-09 ブラザー工業株式会社 Image forming apparatus
US7806610B2 (en) * 2006-05-16 2010-10-05 First Data Corporation Printer with cover having laterally movable hinge
US20080094785A1 (en) * 2006-10-20 2008-04-24 First Data Corporation Communication device housing systems and methods
IT1400883B1 (en) * 2010-07-07 2013-07-02 K F I Trading S R L PRINTER WITH RETRACTABLE LID.
WO2014117830A1 (en) * 2013-01-30 2014-08-07 Arcelik Anonim Sirketi Cover for a printing device and mechanism thereof
EP3095607B1 (en) * 2015-05-19 2017-09-13 APS Trading OOD Printer ready to print detection system for a thermal printing mechanism
IT202000025234A1 (en) 2020-10-26 2022-04-26 K F I S R L PRINTER WITH EASY OPENING AND FIRMLY SECURED CLOSING

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE68908427T2 (en) * 1988-01-26 1993-12-23 Seiko Epson Corp Housing for the components of a printer.
JP2788285B2 (en) * 1988-09-12 1998-08-20 株式会社リコー Image recording device
DE69226884T2 (en) * 1991-12-20 1999-05-12 Seiko Epson Corp., Tokio/Tokyo Printing device
JP3324629B2 (en) * 1995-03-13 2002-09-17 セイコーエプソン株式会社 Storage case for inkjet printing unit
JP2899234B2 (en) * 1995-07-27 1999-06-02 キヤノン株式会社 Recording device
JP3309038B2 (en) * 1995-09-29 2002-07-29 アンリツ株式会社 Thermal head holding structure
FR2760684B1 (en) 1997-03-11 1999-05-07 Aps Engineering COMPACT PRINTING MECHANISM
KR100566221B1 (en) * 1999-09-22 2006-03-29 세이코 엡슨 가부시키가이샤 Printer having a roll paper sheet receiver
JP4513164B2 (en) * 2000-04-19 2010-07-28 セイコーエプソン株式会社 Printer

Also Published As

Publication number Publication date
US6802603B1 (en) 2004-10-12
FR2796001B1 (en) 2001-10-05
DE60006837D1 (en) 2004-01-08
EP1218200A1 (en) 2002-07-03
AU5992000A (en) 2001-01-30
CA2379390A1 (en) 2001-01-18
DE60006837T2 (en) 2004-08-05
ES2212776T3 (en) 2004-08-01
CN1460070A (en) 2003-12-03
CN1195636C (en) 2005-04-06
FR2796001A1 (en) 2001-01-12
WO2001003939A1 (en) 2001-01-18
ATE255015T1 (en) 2003-12-15

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