EP0431517A1 - Can opener - Google Patents

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Publication number
EP0431517A1
EP0431517A1 EP90123098A EP90123098A EP0431517A1 EP 0431517 A1 EP0431517 A1 EP 0431517A1 EP 90123098 A EP90123098 A EP 90123098A EP 90123098 A EP90123098 A EP 90123098A EP 0431517 A1 EP0431517 A1 EP 0431517A1
Authority
EP
European Patent Office
Prior art keywords
lug
drive shaft
bead
ramp
wheel
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
EP90123098A
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German (de)
French (fr)
Other versions
EP0431517B1 (en
Inventor
Bernard Boin
Pierre Alexandre Gustave Brisard
Stéphane Eric Christophe Louis Duchemin
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.)
Moulinex SA
Original Assignee
Moulinex SA
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Publication date
Application filed by Moulinex SA filed Critical Moulinex SA
Publication of EP0431517A1 publication Critical patent/EP0431517A1/en
Application granted granted Critical
Publication of EP0431517B1 publication Critical patent/EP0431517B1/en
Anticipated expiration legal-status Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67B—APPLYING CLOSURE MEMBERS TO BOTTLES JARS, OR SIMILAR CONTAINERS; OPENING CLOSED CONTAINERS
    • B67B7/00—Hand- or power-operated devices for opening closed containers
    • B67B7/38—Power-operated cutting devices

Definitions

  • the invention relates to can openers comprising, in a housing, an electric motor capable of driving in rotation, by means of at least one toothed wheel, a drive shaft of which one end projects transversely to the one of the walls of the housing and carries a roller comprising a drive zone intended to come into contact with the crimping flange of a box, as well as a cutting wheel which is mounted idly around an axis disposed transversely to the 'drive shaft and a cutting sector of which protrudes from said wall practically opposite said drive zone of the caster and is intended to come and cut said bead.
  • a bidirectional drive mechanism which consists of a lug secured to the shaft drive and capable of moving along a ramp formed on a transverse face of the toothed wheel and limited by at least one stop, as well as a compression spring threaded on the drive shaft and bearing , on the one hand, on the housing and, on the other hand, on a washer resting on the lug, and intended to keep the lug in contact with the ramp, said lug being able to drive the shaft in rotation and in translation so that the drive shaft can occupy, according to the direction of rotation of said wheel, either an inactive position for which the caster is distant from the wheel so as to allow the engagement or disengagement of the bead from the box, or an active position for which the caster is brought closer to the wheel so as to come into engagement with the bead and allow the cutting of said bead.
  • Can openers comprising such a bidirectional driving mechanism are known.
  • this mechanism the rotation of the toothed wheel automatically changes the position shaft according to the direction of rotation.
  • the drawback of such a mechanism is that, when the user starts the engine before inserting a box, the drive shaft passes into its active position, the user then no longer being able to insert a box between the wheel and the wheel.
  • the object of the invention is to remedy this drawback and to propose an electric can opener, the design of which is simple and economical, and the implementation efficient and easy for the user.
  • said compression spring is chosen so as to exert a sufficiently large compression force to oppose the rise of the lug along the ramp when the roller rotates in a vacuum, thus maintaining the shaft drive in its inactive position, and low enough to allow the lug to slip on the washer and thus allow the lug to climb along the ramp, when the drive zone of the caster is in contact with the bead of a box, thus maintaining the drive shaft in its active position.
  • the bidirectional driving mechanism thus produced is particularly simple and allows the user to insert the box at any time, whether the caster is spinning or not.
  • the user inserts the box, in the first case, if the caster is already spinning, it is brought by translation to its active position, and in a second case if the caster does not rotate, the user turns on the device to rotate the caster which by translation will then occupy its active position.
  • the can opener shown in Figures 1 and 2 comprises, in a housing 1, an electric motor (not shown) capable of driving in rotation, by means of at least one toothed wheel 2, a shaft of drive 3, one end of which protrudes transversely to one 4 of the walls 4.5 of the housing 1 and carries a roller 6 comprising a drive zone 7 intended to come into contact with the internal lateral upper region 8 of the bead cover 9 for crimping the cover 10 of a box II, as well as a cutting wheel 12 which is mounted idly around an axis 13 disposed transversely to the drive shaft 3 and of which a cutting sector 14 projects from said wall 4 practically opposite said drive zone 7 of the caster 6 and is intended to cut out the external lateral region of said bead 9.
  • an electric motor (not shown) capable of driving in rotation, by means of at least one toothed wheel 2
  • a shaft of drive 3 one end of which protrudes transversely to one 4 of the walls 4.5 of the housing 1 and carries a roller 6 comprising
  • the drive shaft 3 is mounted both rotating and axially movable in the housing 1 by means of a bidirectional driving mechanism which consists of a lug l6 integral with the drive shaft 3 and capable of moving along a ramp 17 formed on a transverse face 18 of the toothed wheel 2 and limited by two stops 19,20, as well as a compression spring with flange 21 threaded on the drive shaft 3 and bearing at its ends, on the one hand, on the wall 5 of the housing 1 and, on the other hand, on a flat washer 22 resting on the lug 16 , and intended to keep the lug 16 in contact with the ramp 17.
  • a bidirectional driving mechanism which consists of a lug l6 integral with the drive shaft 3 and capable of moving along a ramp 17 formed on a transverse face 18 of the toothed wheel 2 and limited by two stops 19,20, as well as a compression spring with flange 21 threaded on the drive shaft 3 and bearing at its ends, on the one hand, on the wall 5 of the housing 1 and, on the other hand
  • washers 23, of the Belleville type are interposed between the toothed wheel 2 and the wall 4 of the housing 1 in a manner known per se.
  • the lug 16 can drive the shaft 3 in rotation and in translation so that the drive shaft 3 can occupy, in the direction of rotation of said wheel 2, is an inactive position ( Figure 1) for which the caster 6 is distant from the wheel 12 so as to allow the engagement or disengagement of the bead 9 of the box 11, that is to say an active position (FIG. 2) for which the roller 6 is brought closer to the wheel 12 so as to come into engagement with the bead 9 and allow the cutting of the external lateral region 15 of said bead 9.
  • Figure 1 for which the caster 6 is distant from the wheel 12 so as to allow the engagement or disengagement of the bead 9 of the box 11, that is to say an active position (FIG. 2) for which the roller 6 is brought closer to the wheel 12 so as to come into engagement with the bead 9 and allow the cutting of the external lateral region 15 of said bead 9.
  • the compression spring 21 is chosen so as to exert a sufficiently large compression force to oppose the rise of the lug 16 along the ramp 17 when the caster 6 rotates in a vacuum, now thus the drive shaft 3 in its inactive position (Figure 1), and weak enough to allow the lug 16 to slip on the washer 22 and thus allow the lug 16 to climb along the ramp 17, when the drive zone 7 of the caster 6 is in contact with the bead 9 of a box 11, thus maintaining the drive shaft 3 in its active position (FIG. 2).
  • the user turns on the device before inserting the bead 9 of the box 11 between the wheel 12 and the roller 6.
  • the motor drives the toothed wheel 2 in rotation.
  • the spring 21 prevents the lug 16 from going up along the ramp 17, and blocks it so that the lug 16 rotates the drive shaft 3 as well as the roller 6.
  • the user then inserts the bead 9 of the box 11 between the caster 6 and the wheel 12.
  • the friction exerted by the bead 9 on the caster 6 is added to the force exerted by the ramp 17 on the lug 16, which allows the lug 16 to oppose the axial force of the spring 21 and thus to climb along the ramp 17, which has the effect of bringing the drive shaft 3 and the caster 6 into translation towards the wheel 12 and allowing thus the cutting of the bead 9 by the wheel 12.
  • the direction of rotation of the motor is reversed in a manner known per se for a short period of time, the wheel 2 rotating in the other direction, l lug 16 descends along the ramp 17 until it comes to rest against the stop 19, the caster 6 is distant from the wheel 12 by translation, thus releasing the bead 9, which allows the user to remove the box 11.
  • the user inserts the bead 9 of the box 11 between the wheel 12 and the roller 6 and then starts the device.
  • the motor drives the toothed wheel 2 in rotation. Thanks to the friction exerted by the bead 9 on the caster 6 and the force exerted by the ramp 17 on the lug 16, the lug 16 rises along the ramp 17 against the axial force exerted by the spring compression 21, which brings the shaft 3 into translation in the active position, the lug 16 locking against the stop 20, then drives the shaft 3 in rotation, thus allowing the cutting of the bead 9.
  • the user acts as in the first case.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Opening Bottles Or Cans (AREA)

Abstract

Can opener comprising a cutting wheel (12) and a motor which drives in rotation, by the intermediary of a toothed wheel (2), a shaft (3) carrying a roller (6) mounted in a manner which is both rotary and axially mobile by means of a bidirectional drive mechanism which is constituted by a pin (16) integral with the shaft and capable of displacing along a ramp (17), and a spring (21) intended to keep the pin in contact with the ramp. According the invention, the spring is chosen in such a way as to apply a compression force which is sufficiently large to oppose the rising of the pin along the ramp when the roller rotates unloaded and sufficiently weak to allow the pin to rise up the ramp when the roller is in contact with the bead (9) of a can (11). The invention applies to electrical can openers for household use. <IMAGE>

Description

L'invention se rapporte aux ouvre-boîtes comprenant, dans un boîtier, un moteur électrique susceptible d'entraîner en rotation, par l'intermédiaire d'au moins une roue dentée, un arbre d'entraînement dont une extrémité fait saillie transversalement à l'une des parois du boîtier et porte une roulette comportant une zone d'entraînement destinée a venir en contact avec le bourrelet de sertissage d'une boîte, ainsi qu'une molette coupante qui est montée folle autour d'un axe disposé transversalement à l'arbre d'entraînement et dont un secteur tranchant fait saillie de ladite paroi pratiquement en regard de ladite zone d'entraînement de la roulette et est destiné à venir découper ledit bourrelet.The invention relates to can openers comprising, in a housing, an electric motor capable of driving in rotation, by means of at least one toothed wheel, a drive shaft of which one end projects transversely to the one of the walls of the housing and carries a roller comprising a drive zone intended to come into contact with the crimping flange of a box, as well as a cutting wheel which is mounted idly around an axis disposed transversely to the 'drive shaft and a cutting sector of which protrudes from said wall practically opposite said drive zone of the caster and is intended to come and cut said bead.

Elle concerne, plus précisément, les ouvre-boîtes dans lesquels l'arbre d'entraînement est monté à la fois rotatif et mobile axialement dans le boîtier au moyen d'un mécanisme entraîneur bidirectionnel qui est constitué d'un ergot solidaire de l'arbre d'entraînement et susceptible de se déplacer le long d'une rampe pratiquée sur une face transversale de la roue dentée et limitée par au moins une butée, ainsi que d'un ressort de compression enfilé sur l'arbre d'entraînement et prenant appui, d'une part, sur le boîtier et, d'autre part, sur une rondelle s'appuyant sur l'ergot, et destiné à maintenir l'ergot en contact avec la rampe, ledit ergot pouvant entraîner l'arbre en rotation et en translation de manière que l'arbre d'entraînement puisse occuper, suivant le sens de rotation de ladite roue, soit une position inactive pour laquelle la roulette est éloignée de la molette de manière à permettre l'engagement ou le désengagement du bourrelet de la boîte, soit une position active pour laquelle la roulette est rapprochée de la molette de manière à venir en prise avec le bourrelet et permettre le découpage dudit bourrelet.It relates, more specifically, can openers in which the drive shaft is mounted both rotatable and axially movable in the housing by means of a bidirectional drive mechanism which consists of a lug secured to the shaft drive and capable of moving along a ramp formed on a transverse face of the toothed wheel and limited by at least one stop, as well as a compression spring threaded on the drive shaft and bearing , on the one hand, on the housing and, on the other hand, on a washer resting on the lug, and intended to keep the lug in contact with the ramp, said lug being able to drive the shaft in rotation and in translation so that the drive shaft can occupy, according to the direction of rotation of said wheel, either an inactive position for which the caster is distant from the wheel so as to allow the engagement or disengagement of the bead from the box, or an active position for which the caster is brought closer to the wheel so as to come into engagement with the bead and allow the cutting of said bead.

Les ouvre-boîtes comportant un tel mécanisme entraîneur bidirectionnel sont connus. Avec ce mécanisme, la rotation de la roue dentée fait automatiquement changer l'arbre de position en fonction du sens de rotation. L'inconvénient d'un tel mécanisme est que, lorsque l'utilisateur met en marche le moteur avant d'insérer une boîte, l'arbre d'entraînement passe dans sa position active, l'utilisateur ne pouvant plus alors insérer de boîte entre la roulette et la molette.Can openers comprising such a bidirectional driving mechanism are known. With this mechanism, the rotation of the toothed wheel automatically changes the position shaft according to the direction of rotation. The drawback of such a mechanism is that, when the user starts the engine before inserting a box, the drive shaft passes into its active position, the user then no longer being able to insert a box between the wheel and the wheel.

L'invention a pour but de remédier à cet inconvénient et de proposer un ouvre-boîtes électrique dont la conception soit simple et économique, et la mise en oeuvre efficace et aisée pour l'utilisateur.The object of the invention is to remedy this drawback and to propose an electric can opener, the design of which is simple and economical, and the implementation efficient and easy for the user.

Selon l'invention, ledit ressort de compression est choisi de manière à exercer une force de compression suffisamment importante pour s'opposer à la montée de l'ergot le long de la rampe lorsque la roulette tourne dans le vide, maintenant ainsi l'arbre d'entraînement dans sa position inactive, et suffisamment faible pour permettre le patinage de l'ergot sur la rondelle et autoriser ainsi l'ergot à monter le long de la rampe, lorsque la zone d'entraînement de la roulette est en contact avec le bourrelet d'une boîte, maintenant ainsi l'arbre d'entraînement dans sa position active.According to the invention, said compression spring is chosen so as to exert a sufficiently large compression force to oppose the rise of the lug along the ramp when the roller rotates in a vacuum, thus maintaining the shaft drive in its inactive position, and low enough to allow the lug to slip on the washer and thus allow the lug to climb along the ramp, when the drive zone of the caster is in contact with the bead of a box, thus maintaining the drive shaft in its active position.

Le mécanisme entraîneur bidirectionnel ainsi réalisé est particulièrement simple et permet à l'utilisateur d'insérer la boîte à tout moment, que la roulette tourne ou non.En effet, au moment où l'utilisateur insère la boîte, dans un premier cas, si la roulette tourne déjà, elle est amenée par translation vers sa position active, et dans un deuxième cas si la roulette ne tourne pas, l'utilisateur met en marche l'appareil pour faire tourner la roulette qui par translation va alors occuper sa position active.The bidirectional driving mechanism thus produced is particularly simple and allows the user to insert the box at any time, whether the caster is spinning or not. In fact, when the user inserts the box, in the first case, if the caster is already spinning, it is brought by translation to its active position, and in a second case if the caster does not rotate, the user turns on the device to rotate the caster which by translation will then occupy its active position.

Les caractéristiques et avantages de l'invention ressortiront d'ailleurs de la description qui va suivre,à titre d'exemple, en référence au dessin annexé dans lequel :

  • la figure 1 est une vue partielle en coupe de l'ouvre-boîtes selon l'invention, illustrant l'arbre d'entraînement occupant sa position inactive; la figure 2 est une vue analogue à la figure 1, illustrant l'arbre d'entraînement occupant sa position active .
The characteristics and advantages of the invention will become apparent from the description which follows, by way of example, with reference to the appended drawing in which:
  • Figure 1 is a partial sectional view of the can opener according to the invention, illustrating the drive shaft occupying its inactive position; Figure 2 is a view similar to Figure 1, illustrating the drive shaft occupying its active position.

L'ouvre-boîtes représenté sur les figures 1 et 2 comprend, dans un boîtier 1, un moteur électrique (non représenté) susceptible d'entraîner en rotation, par l'intermédiaire d'au moins une roue dentée 2, un arbre d'entraînement 3 dont une extrémité fait saillie transversalement à l'une 4 des parois 4,5 du boîtier 1 et porte une roulette 6 comportant une zone d'entraînement 7 destinée à venir en contact avec la région supérieure latérale interne 8 du couvercle du bourrelet 9 de sertissage du couvercle 10 d'une boîte Il, ainsi qu'une molette coupante 12 qui est montée folle autour d'un axe 13 disposé transversalement à l'arbre d'entraînement 3 et dont un secteur tranchant 14 fait saillie de ladite paroi 4 pratiquement en regard de ladite zone d'entraînement 7 de la roulette 6 et est destiné à venir découper la région latérale externe dudit bourrelet 9.The can opener shown in Figures 1 and 2 comprises, in a housing 1, an electric motor (not shown) capable of driving in rotation, by means of at least one toothed wheel 2, a shaft of drive 3, one end of which protrudes transversely to one 4 of the walls 4.5 of the housing 1 and carries a roller 6 comprising a drive zone 7 intended to come into contact with the internal lateral upper region 8 of the bead cover 9 for crimping the cover 10 of a box II, as well as a cutting wheel 12 which is mounted idly around an axis 13 disposed transversely to the drive shaft 3 and of which a cutting sector 14 projects from said wall 4 practically opposite said drive zone 7 of the caster 6 and is intended to cut out the external lateral region of said bead 9.

L'arbre d'entraînement 3 est monté à la fois rotatif et mobile axialement dans le boîtier 1 au moyen d'un mécanisme entraîneur bidirectionnel qui est constitué d'un ergot l6 solidaire de l'arbre d'entraînement 3 et susceptible de se déplacer le long d'une rampe 17 pratiquée sur une face transversale l8 de la roue dentée 2 et limitée par deux butées 19,20, ainsi que d'un ressort de compression à boudin 21 enfilé sur l'arbre d'entraînement 3 et prenant appui par ses extrémités, d'une part, sur la paroi 5 du boîtier 1 et, d'autre part, sur une rondelle plate 22 s'appuyant sur l'ergot 16, et destiné à maintenir l'ergot 16 en contact avec la rampe 17.The drive shaft 3 is mounted both rotating and axially movable in the housing 1 by means of a bidirectional driving mechanism which consists of a lug l6 integral with the drive shaft 3 and capable of moving along a ramp 17 formed on a transverse face 18 of the toothed wheel 2 and limited by two stops 19,20, as well as a compression spring with flange 21 threaded on the drive shaft 3 and bearing at its ends, on the one hand, on the wall 5 of the housing 1 and, on the other hand, on a flat washer 22 resting on the lug 16 , and intended to keep the lug 16 in contact with the ramp 17.

Entre la roue dentée 2 et la paroi 4 du boîtier 1 sont interposées de manière connue en soi des rondelles 23, du type Belleville.Between the toothed wheel 2 and the wall 4 of the housing 1 are interposed in a manner known per se, washers 23, of the Belleville type.

L'ergot 16 peut entraîner l'arbre 3 en rotation et en translation de manière que l'arbre d'entraînement 3 puisse occuper, suivant le sens de rotation de ladite roue 2, soit une position inactive (figure 1) pour laquelle la roulette 6 est éloignée de la molette 12 de manière à permettre l'engagement ou le désengagement du bourrelet 9 de la boîte 11, soit une position active (figure 2) pour laquelle la roulette 6 est rapprochée de la molette 12 de manière à venir en prise avec le bourrelet 9 et permettre le découpage de la région latérale externe 15 dudit bourrelet 9.The lug 16 can drive the shaft 3 in rotation and in translation so that the drive shaft 3 can occupy, in the direction of rotation of said wheel 2, is an inactive position (Figure 1) for which the caster 6 is distant from the wheel 12 so as to allow the engagement or disengagement of the bead 9 of the box 11, that is to say an active position (FIG. 2) for which the roller 6 is brought closer to the wheel 12 so as to come into engagement with the bead 9 and allow the cutting of the external lateral region 15 of said bead 9.

Selon l'invention, le ressort de compression 21 est choisi de manière à exercer une force de compression suffisamment importante pour s'opposer à la montée de 1'ergot 16 le long de la rampe 17 lorsque la roulette 6 tourne dans le vide, maintenant ainsi l'arbre d'entraînement 3 dans sa position inactive (figure 1), et suffisamment faible pour permettre le patinage de l'ergot 16 sur la rondelle 22 et autoriser ainsi l'ergot 16 à monter le long de la rampe 17, lorsque la zone d'entraînement 7 de la roulette 6 est en contact avec le bourrelet 9 d'une boîte 11, maintenant ainsi l'arbre d'entraînement 3 dans sa position active (figure 2).According to the invention, the compression spring 21 is chosen so as to exert a sufficiently large compression force to oppose the rise of the lug 16 along the ramp 17 when the caster 6 rotates in a vacuum, now thus the drive shaft 3 in its inactive position (Figure 1), and weak enough to allow the lug 16 to slip on the washer 22 and thus allow the lug 16 to climb along the ramp 17, when the drive zone 7 of the caster 6 is in contact with the bead 9 of a box 11, thus maintaining the drive shaft 3 in its active position (FIG. 2).

Dans un but de clarté on va récapituler et préciser le fonctionnement du mécanisme décrit ci-dessus, que l'on peut décomposer en deux cas :For the sake of clarity, we will summarize and specify the operation of the mechanism described above, which can be broken down into two cases:

Dans le premier cas, l'utilisateur met en marche l'appareil avant d'insérer le bourrelet 9 de la boîte 11 entre la molette 12 et la roulette 6. Le moteur entraîne la roue dentée 2 en rotation. Le ressort 21 empêche l'ergot 16 de monter le long de la rampe 17, et le bloque de manière que l'ergot 16 entraîne en rotation l'arbre d'entraînement 3 ainsi que la roulette 6. L'utilisateur insère alors le bourrelet 9 de la boîte 11 entre la roulette 6 et la molette 12. La friction exercée par le bourrelet 9 sur la roulette 6 s'ajoute à la force exercée par la rampe 17 sur l'ergot 16, ce qui permet à l'ergot 16 de s'opposer à la force axiale du ressort 21 et ainsi de monter le long de la rampe 17, ce qui a pour effet d'amener en translation l'arbre d'entraînement 3 et la roulette 6 vers la molette 12 et de permettre ainsi le découpage du bourrelet 9 par la molette 12. Quand le découpage est terminé, le sens de rotation du moteur est inversé d'une manière connue en soi pendant un court laps de temps, la roue 2 tournant dans l'autre sens, l'ergot 16 descend le long de la rampe 17 jusqu'à venir s'appuyer contre la butée 19, la roulette 6 est éloignée de la molette 12 par translation, libérant ainsi le bourrelet 9, ce qui permet à 1'utilisateur d'ôter la boîte 11.In the first case, the user turns on the device before inserting the bead 9 of the box 11 between the wheel 12 and the roller 6. The motor drives the toothed wheel 2 in rotation. The spring 21 prevents the lug 16 from going up along the ramp 17, and blocks it so that the lug 16 rotates the drive shaft 3 as well as the roller 6. The user then inserts the bead 9 of the box 11 between the caster 6 and the wheel 12. The friction exerted by the bead 9 on the caster 6 is added to the force exerted by the ramp 17 on the lug 16, which allows the lug 16 to oppose the axial force of the spring 21 and thus to climb along the ramp 17, which has the effect of bringing the drive shaft 3 and the caster 6 into translation towards the wheel 12 and allowing thus the cutting of the bead 9 by the wheel 12. When the cutting is finished, the direction of rotation of the motor is reversed in a manner known per se for a short period of time, the wheel 2 rotating in the other direction, l lug 16 descends along the ramp 17 until it comes to rest against the stop 19, the caster 6 is distant from the wheel 12 by translation, thus releasing the bead 9, which allows the user to remove the box 11.

Dans le deuxième cas, l'utilisateur insère le bourrelet 9 de la boîte 11 entre la molette 12 et la roulette 6 puis il met en marche l'appareil. Le moteur entraîne la roue dentée 2 en rotation. Grâce à la friction exercée par le bourrelet 9 sur la roulette 6 et la force exercée par la rampe 17 sur l'ergot 16, l'ergot 16 monte le long de la rampe 17 à l'encontre de la force axiale exercée par le ressort de compression 21, ce qui amène par translation l'arbre 3 en position active, l'ergot 16 se bloquant contre la butée 20, entraîne ensuite l'arbre 3 en rotation permettant ainsi le découpage du bourrelet 9. Quand le découpage est terminé, l'utilisateur agit comme dans le premier cas.In the second case, the user inserts the bead 9 of the box 11 between the wheel 12 and the roller 6 and then starts the device. The motor drives the toothed wheel 2 in rotation. Thanks to the friction exerted by the bead 9 on the caster 6 and the force exerted by the ramp 17 on the lug 16, the lug 16 rises along the ramp 17 against the axial force exerted by the spring compression 21, which brings the shaft 3 into translation in the active position, the lug 16 locking against the stop 20, then drives the shaft 3 in rotation, thus allowing the cutting of the bead 9. When the cutting is finished, the user acts as in the first case.

Claims (1)

Ouvre-boîtes comprenant, dans un boîtier (1), un moteur électrique susceptible d'entraîner en rotation, par l'intermédiaire d'au moins une roue dentée (2), un arbre d'entraînement (3) dont une extrémité fait saillie transversalement à l'une (4) des parois (4,5) du boîtier (1) et porte une roulette (6) comportant une zone d'entraînement (7) destinée à venir en contact avec le bourrelet (9) de sertissage d'une boîte (11), ainsi qu'une molette coupante (12) qui est montée folle autour d'un axe (13) disposé transversalement à l'arbre d'entraînement (3) et dont un secteur tranchant (14) fait saillie de ladite paroi (4) pratiquement en regard de ladite zone d'entraînement (7) de la roulette (6) et est destiné à venir découper ledit bourrelet (9), ledit arbre d'entraînement (3) étant monté à la fois rotatif et mobile axialement dans le boîtier (1) au moyen d'un mécanisme entraîneur bidirectionnel constitué d'un ergot (16) solidaire de l'arbre d'entraînement (3) et susceptible de se déplacer le long d'une rampe (17) pratiquée sur une face transversale (18) de la roue dentée (2) et limitée par au moins une butée (19,20), ainsi que d'un ressort de compression (21) enfilé sur l'arbre d'entraînement (3) et prenant appui, d'une part, sur 1e boîtier (1) et, d'autre part, sur une rondelle (22) s'appuyant sur l'ergot (16), et destiné à maintenir l'ergot (16) en contact avec la rampe (17), ledit ergot (16) pouvant entraîner l'arbre (3) en rotation et en translation de manière que l'arbre d'entraînement (3) puisse occuper, suivant le sens de rotation de ladite roue (2), soit une position inactive pour laquelle la roulette (6) est éloignée de la molette (12) de manière à permettre l'engagement ou le désengagement du bourrelet (9) de la boîte (11), soit une position active pour laquelle la roulette (6) est rapprochée de la molette (12) de manière à venir en prise avec le bourrelet (9) et permettre le découpage dudit bourrelet (9),
caractérisé en ce que, ledit ressort de compression (21) est choisi de manière à exercer une force de compression suffisamment importante pour s'opposer à la montée de l'ergot (16) le long de la rampe (17) lorsque la roulette (6) tourne dans le vide, maintenant ainsi l'arbre d'entraînement (3) dans sa position inactive, et suffisamment faible pour permettre le patinage de l'ergot (16) sur la rondelle (22) et autoriser ainsi l'ergot (16) à monter le long de la rampe (17), lorsque la zone d'entraînement (7) de la roulette (6) est en contact avec le bourrelet (9) d'une boîte (11), maintenant ainsi l'arbre d'entraînement (3) dans sa position active.Can opener comprising, in a housing (1), an electric motor capable of driving in rotation, by means of at least one toothed wheel (2), a drive shaft (3) of which one end projects transversely to one (4) of the walls (4,5) of the housing (1) and carries a roller (6) comprising a drive zone (7) intended to come into contact with the bead (9) for crimping '' a box (11), as well as a cutting wheel (12) which is mounted idly around an axis (13) arranged transversely to the drive shaft (3) and of which a cutting sector (14) projects of said wall (4) practically opposite said drive zone (7) of the caster (6) and is intended to cut out said bead (9), said drive shaft (3) being mounted both rotatably and movable axially in the housing (1) by means of a bidirectional driving mechanism consisting of a lug (16) integral with the drive shaft (3) and capable of moving along a ramp (17) formed on a transverse face (18) of the toothed wheel (2) and limited by at least one stop (19,20), as well as a compression spring (21) threaded on the drive shaft (3) and bearing, on the one hand, on the housing (1) and, on the other hand, on a washer (22) resting on the lug ( 16), and intended to maintain the lug (16) in contact with the ramp (17), said lug (16) being able to drive the shaft (3) in rotation and in translation so that the drive shaft ( 3) can occupy, in the direction of rotation of said wheel (2), either an inactive position for which the caster (6) is distant from the wheel (12) so as to allow the engagement or disengagement of the bead (9 ) of the box (11), that is to say an active position for which the caster (6) is brought closer to the wheel (12) so as to come into engagement with the bead (9) and allow the cutting of said bead (9),
characterized in that , said compression spring (21) is chosen so as to exert a compressive force large enough to oppose the rise of the lug (16) along the ramp (17) when the caster (6) rotates in a vacuum, thus maintaining the drive shaft (3) in its inactive position , and low enough to allow the lug (16) to slip on the washer (22) and thus allow the lug (16) to climb along the ramp (17), when the drive zone (7) roller (6) is in contact with the bead (9) of a box (11), thus maintaining the drive shaft (3) in its active position.
EP19900123098 1989-12-05 1990-12-03 Can opener Expired - Lifetime EP0431517B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8916043A FR2655323B1 (en) 1989-12-05 1989-12-05 CAN OPENERS.
FR8916043 1989-12-05

Publications (2)

Publication Number Publication Date
EP0431517A1 true EP0431517A1 (en) 1991-06-12
EP0431517B1 EP0431517B1 (en) 1993-09-15

Family

ID=9388159

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900123098 Expired - Lifetime EP0431517B1 (en) 1989-12-05 1990-12-03 Can opener

Country Status (3)

Country Link
EP (1) EP0431517B1 (en)
DE (1) DE69003359T2 (en)
FR (1) FR2655323B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0487939A1 (en) * 1990-11-29 1992-06-03 Moulinex Can opener
WO2024114538A1 (en) * 2022-12-01 2024-06-06 周劲松 Portable electric can opener

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3781989A (en) * 1972-06-01 1974-01-01 Westinghouse Electric Corp Can opener
US3808917A (en) * 1971-10-26 1974-05-07 Imp Knife Ass Co Inc Electric can opener
DE9003115U1 (en) * 1989-03-28 1990-05-17 Moulinex S.A., Bagnolet, Seine tin opener

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3808917A (en) * 1971-10-26 1974-05-07 Imp Knife Ass Co Inc Electric can opener
US3781989A (en) * 1972-06-01 1974-01-01 Westinghouse Electric Corp Can opener
DE9003115U1 (en) * 1989-03-28 1990-05-17 Moulinex S.A., Bagnolet, Seine tin opener

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0487939A1 (en) * 1990-11-29 1992-06-03 Moulinex Can opener
US5170565A (en) * 1990-11-29 1992-12-15 Moulinex (Societe Anonyme) Can opener
AU643336B2 (en) * 1990-11-29 1993-11-11 Moulinex Can opener
WO2024114538A1 (en) * 2022-12-01 2024-06-06 周劲松 Portable electric can opener

Also Published As

Publication number Publication date
DE69003359T2 (en) 1994-01-27
FR2655323A1 (en) 1991-06-07
DE69003359D1 (en) 1993-10-21
EP0431517B1 (en) 1993-09-15
FR2655323B1 (en) 1992-07-24

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