FR2645140A1

FR2645140A1 - Can opener

Info

Publication number: FR2645140A1
Application number: FR8903953A
Authority: FR
Inventors: Bernard Boin; Pierre Alexandre Gusta Brisard
Original assignee: Moulinex SA
Current assignee: Moulinex SA
Priority date: 1989-03-28
Filing date: 1989-03-28
Publication date: 1990-10-05
Anticipated expiration: 2009-03-28
Also published as: FR2645140B1; ES1013485U; ES1013485Y; DE9003115U1

Abstract

Can opener comprising an electric motor whose output gear 2 engages with a set of gears 3 which drives a shaft 4 carrying a small wheel 6 intended to come into contact with the crimping bead (flange) of a can, as well as a cutting roller 11 intended to cut the said bead (flange) laterally, the shaft 4 being mounted both rotatably and so as to move axially by means of a two-directional drive mechanism 14, the direction of rotation of which is controlled by an invertor 15. According to the invention, the invertor 15 comprises a sliding gear wheel (clutch) 16 mounted so as to move on a spindle 17 and including two coaxial wheels 19 and 20 which are toothed on their side 21 and 22 and arranged on either side of the output gear 2 as well as a lever 23 intended to displace the sliding gear wheel (clutch) 16. The invention applies to can openers for domestic use.

Description

Ouvre-boite
L'invention se rapporte aux ouvre-boite comprenant, dans un boîtier, un moteur électrique dont l'arbre de sortie vient en prise avec un jeu d'engrenages dont le dernier étagé comporte un arbre d'entraînement dont une extrémité fait saillie transversalement & l'une des parois du boîtier et porte une roulette comportant une zone d'entraînement destinée a venir au contact de la région supérieure latérale interne du bourrelet de sertissage du couvercle d'une boite , ainsi qu'une molette coupante qui est montée folle autour d'un axe dispos transversalement & l'arbre d'entraînement et dont un secteur tranchant fait saillie de ladite paroi du boîtier pratiquement en regard de ladite zone d'entraînement de la roulette et est destiné å venir découper la région latérale externe du bourrelet de la boite.Can opener
The invention relates to can openers comprising, in a housing, an electric motor, the output shaft of which engages with a set of gears, the last stage of which comprises a drive shaft, one end of which projects transversely. one of the walls of the housing and carries a caster having a drive zone intended to come into contact with the upper internal lateral region of the crimping flange of the cover of a box, as well as a cutting wheel which is mounted loosely around an axis disposed transversely to the drive shaft and a cutting sector of which projects from said housing wall practically opposite said drive zone of the caster and is intended to cut the external lateral region of the bead of the box.

Elle concerne, plus précisément, les ouvre-boite dans lesquels ledit arbre porte-roulette est monté a la fois rotatif et mobile axialement dans le boîtier au moyen d'un mécanisme entraîneur bidirectionnel dont le sens de rotation est commandé par un inverseur, et pouvant ainsi occuper soit une position inactive pour laquelle la roulette est éloignée de la molette de manière a permettre l'engagement ou le désengagement du bourrelet de la boite, 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 de la région latérale externe de ce bourrelet.It relates, more specifically, can openers in which said caster shaft is mounted both rotatable and axially movable in the housing by means of a bidirectional driving mechanism whose direction of rotation is controlled by an inverter, and can thus occupy 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 the external lateral region of this bead.

Il existe déjà dans le commerce, des ouvre-boîte à entraînement manuel comportant un mécanisme de découpage semblable & celui décrit ci-dessus, mais un tel mecanisme est difficilement transposable & un ouvre-boite à moteur électrique.There are already commercially available can openers with manual drive having a cutting mechanism similar to that described above, but such a mechanism is difficult to transpose to an opener with an electric motor.

L'invention a notamment pour but de proposer un ouvre-boîte électrique dont le mécanisme d'entraînement est équipé d'un inverseur de conception simple et économique et d'une mise en oeuvre aisée par l'usager.The object of the invention is in particular to propose an electric can opener, the drive mechanism of which is equipped with an inverter of simple and economical design and of easy implementation by the user.

Selon l'invention, l'inverseur comprend un baladeur monté mobile sur un axe agencé dans le jeu d'engrenages, et comportant un pignon solidaire coaxialement de deux roues coaxiales qui sont dentées respectivement sur leur champ situés en regard l'un de l'autre, et qui sont agencées de part et d'autre d'un pignon denté menant, ainsi qu'un levier qui est monté mobile dans le boîtier et dont une extrémité constitue une touche d'actionnement pour l'usager, et dont l'autre extrémité vient en prise avec le baladeur de manière & amener l'un ou l'autre des champs dentés en prise avec le pignon menant.According to the invention, the reverser comprises a portable player mounted mobile on an axis arranged in the set of gears, and comprising a pinion coaxially integral with two coaxial wheels which are respectively toothed on their field located opposite one of the other, and which are arranged on either side of a driving toothed pinion, as well as a lever which is movably mounted in the housing and one end of which constitutes an actuating button for the user, and the the other end engages the player so as to bring one or the other of the toothed fields into engagement with the driving pinion.

L'inverseur ainsi réalise est particulièrement simple, efficace et commode pour l'usager.The inverter thus produced is particularly simple, efficient and convenient for the user.

Les caractéristiques et avantages de l'invention ressortiront d'ailleurs de la description gui va suivre, & titre d'exemple, en référence aux dessins annexés dans lesquels :
la figure 1 est une vue partielle en perspective
d'un mécanisme entraîneur bidirectionnel equipe
d'un inverseur et destiné à entraîner la roulette
d'un ouvre-boite selon l'invention, ladite roulette
étant illustrée en sa position active t la figure 2
représente à plus grande échelle et en coupe
verticale partielle l'extrémité de l'arbre porte
roulette en sa position active par rapport & la
molette coupante , la figure 3 est une vue analogue
la la figure -1, mais illustrant l'arbre porte
roulette en sa position inactive.The characteristics and advantages of the invention will emerge from the description which follows, by way of example, with reference to the accompanying drawings in which:
Figure 1 is a partial perspective view
a two-way team coach mechanism
an inverter and intended to drive the roulette
of a can opener according to the invention, said caster
being illustrated in its active position t Figure 2
represents on a larger scale and in section
partial vertical end of the door shaft
caster in its active position relative to the
cutting wheel, Figure 3 is a similar view
the figure -1, but illustrating the tree carries
caster in its inactive position.

L'ouvr -boit- représenté sur ces dessins comprend, dans un boîtier 1, un moteur électrique (non représenté > dont l'extremité 2 de l'arbre de sortie 2' constitue un pignon menant qui vient en prise avec un jeu d'engrenages 3 dont le dernier étage comporte un arbre d'entraînement 4 dont une extrémité fait saillie transversalement & un palier 5 solidaire de l'une des parois du boîtier et porte une roulette 6 comportant une zone d'entraînement 7 destinéeà venir au contact de la région supérieure latérale interne 8 du bourrelet 9 de sertissage du couvercle d'une boite 10 (figure 2), ainsi qu'une molette coupante 11 qui est montée folle autour d'un axe 12 disposé transversalement à l'arbre d'entraînement 4 et dont un secteur tranchant fait saillie de ladite paroi du boîtier pratiquement en regard de ladite zone d'entraînement 7 de la roulette 6 et est destiné à venir découper la région latérale externe 13 du bourrelet 9 de la boite. The opening -box shown in these drawings comprises, in a housing 1, an electric motor (not shown> whose end 2 of the output shaft 2 'constitutes a driving pinion which comes into engagement with a set of gears 3, the top stage of which comprises a drive shaft 4, one end of which protrudes transversely & a bearing 5 integral with one of the walls of the housing and carries a roller 6 comprising a drive zone 7 intended to come into contact with the inner lateral upper region 8 of the bead 9 for crimping the cover of a box 10 (FIG. 2), as well as a cutting wheel 11 which is mounted idly around an axis 12 arranged transversely to the drive shaft 4 and a cutting sector of which projects from said wall of the housing practically opposite said drive zone 7 of the caster 6 and is intended to cut out the external lateral region 13 of the bead 9 of the box.

L'arbre d'entraînement 4 est monté à la fois rotatif et mobile axialement dans le boîtier au moyen d'un mécanisme entraîneur bidirectionnel 14 dont le sens de rotation est cor ans par un inverseur 15, et peut ainsi occuper soit une position inactive (figure 3 et traits interrompus de la figure 2) pour laquelle la roulette 6 est éloignée de la molette 11 de maniere à permettre l'engagement ou le désengagement du bourrelet 9 de la boite 10, soit une position active (figures 1 et 2) pour laquelle la roulette 6 est rapprochée de la molette li de manière à venir en prise avec le bourrelet 9 et permettre le découpage de la région latérale externe 13 de ce bourrelet. The drive shaft 4 is mounted both rotating and axially movable in the housing by means of a bidirectional driving mechanism 14 whose direction of rotation is cor ans by an inverter 15, and can thus occupy either an inactive position ( Figure 3 and broken lines in Figure 2) for which the roller 6 is remote from the wheel 11 so as to allow the engagement or disengagement of the bead 9 of the box 10, an active position (Figures 1 and 2) for which the roller 6 is brought closer to the wheel li so as to come into engagement with the bead 9 and allow the cutting of the external lateral region 13 of this bead.

Selon l'invention, l'inverseur. 15 comprend un baladeur 16 monté mobile sur un axe 17 agencé dans le jeu d'engrenages 3, et comportant un pignon 18 en prise avec une roue 18' de ce jeu et solidaire coaxialement de deux roues coaxiales 19 et 20 qui sont dentées respectivement sur leur champ 21 et 22 situés en regard l'un de l'autre, et qui sont agencées de part et d'autre du pignon denté menant 2, ainsi qu'un levier 23 qui est monté mobile dans le boîtier 1 ét dont une extrémité 24 constitue une touche d'actionnement pour l'usager, et dont l'autre extrémité 25 vient en prise avec le baladeur 16 de manière á amener l'un ou l'autre des champs dentés 21-22 en prise avec le pignon menant 2.According to the invention, the inverter. 15 comprises a portable player 16 mounted movably on an axis 17 arranged in the set of gears 3, and comprising a pinion 18 engaged with a wheel 18 ′ of this set and coaxially secured to two coaxial wheels 19 and 20 which are respectively toothed on their field 21 and 22 located opposite one another, and which are arranged on either side of the toothed pinion driving 2, as well as a lever 23 which is movably mounted in the housing 1 and one end of which 24 constitutes an actuating key for the user, and the other end of which 25 engages with the player 16 so as to bring one or the other of the toothed fields 21-22 into engagement with the driving pinion 2 .

Comme représenté sur les figures 1 et 3, le levier 23 étant monté mobile à l'encontre d'un ressort de traction 26 selon un mouvement combiné de pivotement et de translation par rapport å l'axe 17 du baladeur 16 et d'un appui 26 solidaire du boîtier 1, l'extrémité 25 de ce levier comporte une came dont la partie active 27 est agencée transversalement à l'axe 17 en regard de la face frontale du pignon 18 et présente une lumiere oblongue 28 de guidage qui est traversée par l'axe 17 du baladeur et qui s'étend sur la partie active 27 de la came, sur une plage 29 située au pied de la came, et sur une pente 29' intermédiaire à ladite came et à ladite plage.As shown in Figures 1 and 3, the lever 23 being mounted movably against a tension spring 26 in a combined movement of pivoting and translation relative to the axis 17 of the player 16 and a support 26 integral with the housing 1, the end 25 of this lever comprises a cam, the active part 27 of which is arranged transversely to the axis 17 opposite the front face of the pinion 18 and has an oblong guide lumen 28 which is traversed by the axis 17 of the player and which extends over the active part 27 of the cam, over a range 29 situated at the foot of the cam, and over a slope 29 ′ intermediate to said cam and to said range.

Ainsi, on comprendra que la came 27 peut être amenée, par action sur la touche 24 du levier 23, soit en une position dite de poussée (figure 1) pour laquelle elle s'appuie sur la face frontale du pignon 18 et deplace axialement le baladeur 16 a l'encontre d'un ressort 30 agencé coaxialement audit baladeur et en laquelle l'une 20 des roues engrène avec le pignon menant 2, le pignon 18 restant toujours engrene avec la roue 18', soit une position escamotée (figure 3) pour laquelle le baladeur 16 sous l'effet du ressort 30 vient reposer sur la plage 29 et en laquelle l'autre roue 19 engrène avec ledit pignon menant 2, le pignon 18 restant pendant cette translation toujours engrené avec la roue 18'. Thus, it will be understood that the cam 27 can be brought, by action on the button 24 of the lever 23, either to a so-called thrust position (FIG. 1) for which it rests on the front face of the pinion 18 and moves the axially slider 16 against a spring 30 arranged coaxially with said slider and in which one of the wheels meshes with the driving pinion 2, the pinion 18 still remaining meshes with the wheel 18 ′, that is to say a retracted position (FIG. 3 ) for which the player 16 under the effect of the spring 30 comes to rest on the track 29 and in which the other wheel 19 meshes with said driving pinion 2, the pinion 18 remaining during this translation still meshed with the wheel 18 '.

On décrira maintenant le mécanisme entraîneur bidirectionnel 14 de la roulette 6. Ce mécanisme comporte une grande roue dentée 30 faisant partie du dernier étage du jeu d'engrenages 3 et dont le moyeu 31 est formé par un manchon qui est enfilé avec un ressort de compression 32 sur l'arbre d'entra-inement 4 de la roulette 6 entre la palier 5 et un palier opposé, schématisé en 33, et gui présente dans sa paroi latérale une lumière oblongue 34 se déroulant hélicoidalement et dont les extrémités 35 et 36 forment respectivement une butée pour un ergot mobile 37 solidaire de l'arbre d'entraînement 4, ledit ergot mobile 37 pouvant ainsi se déplacer dans cette lumiere 34 entre les dites butées 35-36 et amener l'arbre d'entraînement 4 en ses positions inactive et active selon le sens de rotation imprimé & ladite grande roue 30.The bidirectional driving mechanism 14 of the caster 6 will now be described. This mechanism comprises a large toothed wheel 30 forming part of the last stage of the set of gears 3 and the hub 31 of which is formed by a sleeve which is threaded with a compression spring 32 on the drive shaft 4 of the caster 6 between the bearing 5 and an opposite bearing, shown diagrammatically at 33, and which has in its side wall an oblong slot 34 unfolding helically and whose ends 35 and 36 form respectively a stop for a movable lug 37 integral with the drive shaft 4, said movable lug 37 thus being able to move in this light 34 between said stops 35-36 and bring the drive shaft 4 to its inactive positions and activates according to the direction of rotation printed & said large wheel 30.

Dans un but de clarté, on va récapituler et préciser ci-apres le fonctionnement des mécanismes décrits ci-dessus.For the sake of clarity, we will summarize and specify below the operation of the mechanisms described above.

L'arbre porte roulette 4-6, le levier 23 et le baladeur 16 étant considérés au depart dans la position de la figure 3, l'usager introduit le bourrelet 9 de la boite 10 entre la roulette 6 et la molette 11. Puis il agit sur la touche 24 de manière zo amener le levier 23 en la position de la figure 1.The shaft carrying caster 4-6, the lever 23 and the player 16 being considered at the start in the position of FIG. 3, the user introduces the bead 9 of the box 10 between the caster 6 and the wheel 11. Then he acts on the button 24 so as to bring the lever 23 to the position of FIG. 1.

Au cours de ce mouvement, le levier 23 pivote autour de l'appui 26', libérant un commutateur 38 qui met en marche le moteur électrique selon le sens le rotation indiqué par la flèche F, et se déplace en même temps en translation vers le haut, amenant ainsi la face frontale du pignon 18 a passer de la plage 29 & la partie active 27. Cette came 27 en position de poussée provoque le déplacement axial du baladeur 16 & l'encontre du ressort 30, et amene la roue 20 en engrènement avec le pignon 2, et donc la rotation du pignon 18 selon la fleche G (figure 1) et par suite la rotation de la grande roue 30 selon le môme sens indiqué par la fleche G'. La rotation de la grande roue 30 et de son moyeu 31 amène la lumière 34 & se dérouler, faisant passer ainsi l'ergot 37 de la butée 35 à la butée 36.Ce déplacement de l'ergot 37 assure donc une translation axiale de l'arbre porte-roulette 4-6 jusqu'à l'amener en sa position active permettant le découpage de la région 13 du bourrelet 9 de la boite 10.During this movement, the lever 23 pivots around the support 26 ′, releasing a switch 38 which starts the electric motor in the direction indicated by the rotation indicated by the arrow F, and at the same time moves in translation towards the top, thus bringing the front face of the pinion 18 to pass from the range 29 & the active part 27. This cam 27 in the pushing position causes the axial movement of the sliding gear 16 & against the spring 30, and brings the wheel 20 into meshing with the pinion 2, and therefore the rotation of the pinion 18 according to the arrow G (FIG. 1) and consequently the rotation of the large wheel 30 according to the same direction indicated by the arrow G '. The rotation of the large wheel 30 and its hub 31 brings the light 34 & unroll, thereby passing the lug 37 from the stop 35 to the stop 36. This movement of the lug 37 therefore ensures an axial translation of the 'roller holder shaft 4-6 until bringing it to its active position allowing the cutting of the region 13 of the bead 9 of the box 10.

Une fois le découpage accompli, l'usager ramène la touche 24 de la position de la figure 1 à la position de la figure 3.Once the cutting has been completed, the user returns the key 24 from the position of FIG. 1 to the position of FIG. 3.

La came 27 passe ainsi de sa position de poussée à sa position escamotée pour laquelle le baladeur 16, repoussé par le ressort 30, amène la roue 19 en engrenement avec le pignon 2 provoquant la rotation inverse du pignon 18 (flèche H de la figure 3) et donc également la rotation inverse de la roue 30 (fleche HH* Cette rotation inverse ramène l'ergot 37 contre la butée 35 et place l'arbre porte roulette 4-6 en sa position inactive (figure 3 et traits interrompus de la figure 2).The cam 27 thus passes from its pushed position to its retracted position for which the sliding gear 16, pushed back by the spring 30, brings the wheel 19 into gear with the pinion 2 causing the reverse rotation of the pinion 18 (arrow H in FIG. 3 ) and therefore also the reverse rotation of the wheel 30 (arrow HH * This reverse rotation brings the lug 37 against the stop 35 and places the caster shaft 4-6 in its inactive position (Figure 3 and broken lines in the figure 2).

La durée de cette rotation inverse est limitée par le positionnement du commutateur 38 dans le boîtier qui coupe l'alimentation du moteur des que la touche 24 et le levier 23 sont amenés en leur position extrême illustrée sur la figure 3. The duration of this reverse rotation is limited by the positioning of the switch 38 in the housing which cuts the power supply to the motor as soon as the button 24 and the lever 23 are brought to their extreme position illustrated in FIG. 3.

Claims

Claim.

1. Can opener comprising, in a case (1), an electric motor, the output shaft (2-2 ') of which engages with a set of gears (3), the top stage of which comprises a shaft drive (4), one end of which protrudes transversely from one (5) of the walls of the housing 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 (9) for crimping the cover of a box (10), as well as a cutting wheel (11) which is mounted idly around an axis (12) disposed transversely to the drive shaft (4 ) and of which a cutting sector projects from said wall of the housing practically opposite said drive zone (7) of the caster (6) and is intended to cut out the external lateral region (13) of the bead (9) of the gearbox, said caster shaft (4) being mounted both rotatable and axially movable in the housing by means of a mechanical EMS bidirectional driver (14) whose direction of rotation is controlled by an inverter (15), and can thus occupy either an inactive position for which the roller (6) is distant from the wheel (11> so as to allow engagement or the disengagement of the bead (9) from the box (10), that is to say an active position for which the caster (6) is brought closer to the wheel (11) so as to come into engagement with the bead (9) and allow cutting of the external lateral region (13> of this bead, characterized in that the reverser (15) comprises a sliding gear (16) mounted movably on an axis (17) arranged in the set of gears, and comprising a pinion (18 ) coaxially secured to two coaxial wheels (19 and 20) which are toothed respectively on their field (21 and 22) located opposite one another, and which are arranged on either side of a toothed pinion leading (2), as well as a lever (23) which is movably mounted in the housing (1) and of which an extr mite (24) constitutes an actuating key for the user, and the other end (25) of which engages with the player (16) so as to bring one or the other of the toothed fields (21- 22) in engagement with the driving pinion (2).

2. Can opener according to claim 1, characterized in that the end (25) of the lever (23) intended to come into engagement with the player (16) comprises a cam whose active part (27) is arranged transversely l 'axis the axis (17) of the player (16), and which can be brought, by action on the button (24) of the lever (23), or in a so-called push position for which it axially displaces the player (16 ) against an elastic means (30) arranged coaxially with said player and in which one (20) of the wheels meshed with the driving pinion (2), ie a retracted position for which the player (16) under the 'effect of the elastic means (30) rests on a pad (29) located at the foot of the cam and in which the other wheel (19) meshes with said driving pinion (2>.

3. Can opener according to claim 2, characterized in that the lever (23) being movably mounted against a spring (26) in a combined movement of pivoting and translation relative to the axis (17 ) of the player (16), the end (25) of this cam lever has an oblong guide light (26) which is traversed by the axis (17) of the player and which extends over the active part (27 ) of the cam, on the range (29), and on a slope (29 ′) intermediate to said cam and to said range.

4. Can opener according to any one of the preceding claims, characterized in that the driving pinion (2) is constituted by the end of the output shaft (2 ') of the motor.

5. Can opener according to any one of the preceding claims, characterized in that the bidirectional driving mechanism (14) comprises a large toothed wheel (30) forming part of the last stage of the set of gears (3> and whose means (31) is formed by a sleeve which is threaded on the drive shaft (4) of the caster (6) between two bearings integral with the housing, and which has in its side wall an oblong slot (34) unrolling helically and whose ends (35 and 36) respectively form a stop for a movable lug (37) integral with the drive shaft (4), said movable lug (37) being able to thus move in this light (34) between the say stops (3536) and bring the drive shaft (4) to its inactive and active positions according to the direction of rotation printed on said large wheel (30).