EP3342733B1 - Container lid having a damping tab - Google Patents

Container lid having a damping tab Download PDF

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Publication number
EP3342733B1
EP3342733B1 EP17210003.4A EP17210003A EP3342733B1 EP 3342733 B1 EP3342733 B1 EP 3342733B1 EP 17210003 A EP17210003 A EP 17210003A EP 3342733 B1 EP3342733 B1 EP 3342733B1
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EP
European Patent Office
Prior art keywords
lid
lower edge
plane
container
tank
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EP17210003.4A
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German (de)
French (fr)
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EP3342733A1 (en
Inventor
Jean Troton
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Sulo France SAS
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Plastic Omnium Systemes Urbains SA
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Publication of EP3342733A1 publication Critical patent/EP3342733A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
    • B65F1/00—Refuse receptacles; Accessories therefor
    • B65F1/14—Other constructional features; Accessories
    • B65F1/16—Lids or covers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
    • B65F1/00—Refuse receptacles; Accessories therefor
    • B65F1/14—Other constructional features; Accessories
    • B65F2001/1653—Constructional features of lids or covers
    • B65F2001/1661—Constructional features of lids or covers relating to noise reduction, e.g. during opening or closing

Definitions

  • the invention relates to the field of waste treatment and is more particularly concerned with bins in which household waste is collected.
  • These collection bins include a tank and a movable lid between an open position in which it allows the introduction of waste into the tank and a closed position in which it rests by its periphery on the upper flange of the tank.
  • Closing the lid, under the effect of its own weight, may be accompanied by a noise that may hinder the neighborhood.
  • a first solution is to provide the tank and / or the cover with rubber stops that damp the shock of the lid on the tank.
  • the publication EP 1 127 811 proposes a simplified solution of the above device, in which the lid and the tank are arranged in such a way that the air leaving the tank, when closing the lid and when the latter is close to its closed position, is forced to make at least two turns, passing between substantially vertical surfaces respectively belonging to the lid and the tank.
  • This particular arrangement easy to make by molding, reduces the manufacturing complexity.
  • the publication EP 1,584,576 proposes to project on the lower edge of the cover a band of arcuate circle of small section, apt to deform under the effect of the impact of the lid on the collar of the tank.
  • This elastic band of small section however has a certain fragility and is still expensive to manufacture because of the need to use a drawer mold, comprising moving parts, and therefore more complex to implement.
  • the object of the invention is to propose an alternative solution to the devices described briefly above.
  • the garbage bin according to the invention comprises a tank and a cover movable between an open position and a closed position, said lid comprising a lower edge inscribed substantially in a plane and intended to come into contact with an upper flange of the tank when said lid is in closed position.
  • This tray is characterized in that the lid comprises at least one flexible tongue extending from the wall of the lid between two notches formed from the lower edge of the lid.
  • the elastic tongue comprises a line of contact parallel to the lower edge of the cover, intended to rest on the collar, and disposed at a given distance below the plane in which is inscribed the lower edge of the cover.
  • the elastic tongue comes to rest on the collar before the lower edge of the lid itself comes into contact with the collar, and undergoes an elastic deformation to limit the impact velocity of the lid, and to dampen the shock of the lid on the tank. This results in a decrease in noise and noise that it generates.
  • the shape of the elastic tongue allows a manufacture of the lid by injection molding without the need to use a complex mold.
  • the absence of angles, hollow parts or recesses also prevents the accumulation of waste.
  • figure 1 is a schematic freehand representation of a tray comprising a lid provided with an elastic tongue according to the invention.
  • figure 2 is a sectional view of the elastic tongue before coming to rest on the surface of the upper collar of the tank.
  • figure 3 is a front view of the elastic tongue.
  • figure 4 is a sectional view of the elastic tongue bearing on the upper flange of the tank at the time of the impact of the cover on the upper flange of the tank.
  • the figure 1 represents a garbage bin 1 comprising a tank 2 and a lid 3.
  • the lid is connected to the tank by a hinge 21 of axis XX '.
  • this tray is made of high density polyethylene (HDPE) whose structural properties are sufficient to undergo elastic deformation without risk of degradation over time.
  • HDPE high density polyethylene
  • the lid 3 itself comprises a substantially horizontal plate 32 bordered on its circumference by a lateral strip 34 lowering more or less vertically according to the types and models of waste bins.
  • This sideband allows to cover the rain shield (not visible) extending the wall of the sides of the tank above the collar 20.
  • the lower edge 33 of the strip 32 rests on the upper surface of the upper flange 20 of the tank 2.
  • the lower edge 33 is therefore inscribed in a plane so as to establish uniform contact over the entire surface of the collar to reduce the penetration of external agents.
  • the width and the shape of the collar 20 are the subject of numerous standards and technical specifications to authorize the handling of the bin by the waste collection machinery.
  • a flexible tongue 30 extends from the wall of the lid between two notches 31. These notches 31 themselves extend from the lower edge 33 of the lid in a direction substantially perpendicular to said lower edge 33.
  • a contact line 301 represents all the points of the tongue 30 coming into contact with the flange of the tank 2. This line of contact is locally substantially parallel to the lower edge 33.
  • the contact line 301 is located at a distance d below a plane P in which is inscribed the lower edge 33 of the cover 3. This distance is adjustable to increase or reduce the elastic travel of the flexible tongue 30. In practice, the distance d is usefully between 3 mm and 15 mm.
  • the tongue has a first concavity 303 facing up the garbage bin.
  • a plane P 'tangential to the flexible tongue 30 and passing through the contact line 301 is parallel to the plane P in which is inscribed the lower edge 33.
  • the notches 31 have a depth p that can be adjusted to make the tongue more or less flexible. It will be observed here that the notches start from the lower edge 33 and can walk over the entire height of the strip 34 and extend if necessary on the plate 32 of the lid. In practice, the notches have a depth p between 10 mm and 50 mm.
  • the elastic deformation of the tongue takes place along the entire length separating the line bending 303 of the nip 301, it can be considered that the bending line is equivalent to the axis of an elastic hinge around which the flexible tongue is rotated.
  • the plane R passing through the bending line 302 and the contact line 301 defines the angle inclination ⁇ of the flexible tongue relative to a direction perpendicular to the plane P.
  • This direction V is similar to the vertical direction, when the lid is in the closed position.
  • This inclination a is adjustable to adjust the intensity of the torque exerted on the nip when closing the lid. It will be observed here that when this angle of inclination decreases, the radial force transmitted to the cover increases and the attenuation of the noise is lower. Also we will choose an angle between 15 ° and 80 °.
  • the flexible tongue may extend and form a second concavity 304 facing downwardly of the refuse bin to form a handle 305 allowing the user to lift the lid more easily.
  • the thickness of the tongue 30 is generally substantially equal to the thickness of the lid 3 and between 1.5 mm and 3 mm. However, to adjust the stiffness of the flexible tongue, it is possible to adjust this thickness locally.
  • the width of the flexible tongue 30 also makes it possible to modify the elasticity of the tongue 30. It will then be ensured that the width of the tongue is compatible with the width necessary for grasping by the hand of a user.
  • the figure 4 illustrates the position of the tongue at the time of the impact of the cover on the upper flange of the tank.
  • the impact force I comprises a radial component I r passing through the bending line 302 and a circumferential component I c generating the bending torque of the tongue about the axis 302. It can be considered that the radial component I r is transmits directly to the cover without damping effect, and the higher the value of this component I r is less the sound effect produced at the moment of impact is attenuated. As indicated above, increasing the inclination of the flexible tongue 30 reduces this phenomenon.
  • the flexible tongue 30 is integral with the lid 3 of the hopper.
  • This solution has many advantages in terms of manufacturing. However, it would be quite possible to envisage having a metal blade, fixed on the bending line between the two cutouts 31, for example by rivets, to obtain identical effects.
  • the flexible tongue When the flexible tongue is integral with the lid, it can be molded at the same time as the lid. It will be observed that it is not necessary to use moving parts because of the absence of parts underdepoise. In addition, the injection molding technology allows all variations in shape and thickness to achieve a part meeting the requirements of flexibility and strength as discussed above.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)

Description

L'invention concerne le domaine du traitement des déchets et s'intéresse plus particulièrement aux bacs dans lesquels sont collectés les déchets ménagers.The invention relates to the field of waste treatment and is more particularly concerned with bins in which household waste is collected.

Ces bacs de collecte comportent une cuve et un couvercle mobile entre une position d'ouverture dans laquelle il permet l'introduction de déchets dans la cuve et une position de fermeture dans laquelle il repose par sa périphérie sur la collerette supérieure de la cuve.These collection bins include a tank and a movable lid between an open position in which it allows the introduction of waste into the tank and a closed position in which it rests by its periphery on the upper flange of the tank.

La fermeture du couvercle, sous l'effet de son propre poids, peut s'accompagner d'un bruit susceptible de gêner le voisinage.Closing the lid, under the effect of its own weight, may be accompanied by a noise that may hinder the neighborhood.

Aussi, pour réduire ces nuisances sonores, de nombreuses propositions ont été faites. Une première solution consiste à munir la cuve et/ou le couvercle de butées en caoutchouc qui permettent d'amortir le choc du couvercle sur la cuve.Also, to reduce these noise nuisances, many proposals have been made. A first solution is to provide the tank and / or the cover with rubber stops that damp the shock of the lid on the tank.

Il a également été proposé de réaliser un freinage au niveau de l'articulation du couvercle sur la cuve afin de ralentir le mouvement de ce dernier à l'approche de la position de fermeture et d'ouverture. Un tel frein est relativement délicat à réaliser et de plus, son efficacité diminue au cours de la vie du bac, du fait de l'usure des parties en contact.It has also been proposed to perform a braking at the hinge of the cover on the tank to slow the movement of the latter at the approach of the closed position and opening. Such a brake is relatively difficult to achieve and moreover, its effectiveness decreases during the life of the tray, because of the wear of the parts in contact.

La publication US A 4 917 257 propose de freiner le couvercle en prévoyant des nervures en saillie sur les flancs de la cuve du conteneur pour former, en coopération avec le bord du couvercle, un trajet d'air en labyrinthe lors de la fermeture du bac. Toutefois, en raison de la complexité des surfaces constituant le labyrinthe, ce dispositif s'avère complexe à fabriquer par moulage en grande série.The publication US A 4,917,257 proposes to brake the cover by providing protruding ribs on the sides of the tank of the container to form, in cooperation with the edge of the cover, a labyrinth air path when closing the tray. However, because of the complexity of the surfaces constituting the labyrinth, this device is complex to manufacture by mass molding.

La publication EP 1 127 811 propose une solution simplifiée du dispositif ci-dessus, dans laquelle le couvercle et la cuve sont agencés de telle sorte que l'air sortant de la cuve, lors de la fermeture du couvercle et lorsque ce dernier est proche de sa position de fermeture, est forcé à faire au moins deux virages, en passant entre des surfaces sensiblement verticales appartenant respectivement au couvercle et à la cuve. Cet agencement particulier, facile à réaliser par moulage, permet de réduire la complexité de fabrication.The publication EP 1 127 811 proposes a simplified solution of the above device, in which the lid and the tank are arranged in such a way that the air leaving the tank, when closing the lid and when the latter is close to its closed position, is forced to make at least two turns, passing between substantially vertical surfaces respectively belonging to the lid and the tank. This particular arrangement, easy to make by molding, reduces the manufacturing complexity.

Ces dispositifs pneumatiques restent malgré tout insuffisants lorsque le couvercle est rabattu avec plus de force.These pneumatic devices are still insufficient when the lid is folded down with more force.

De manière alternative, la publication EP 1 584 576 propose de disposer en saillie sur le bord inférieur du couvercle une bande en arc de cercle de faible section, apte à se déformer sous l'effet de l'impact du couvercle sur la collerette de la cuve. Cette bande élastique de faible section présente toutefois une certaine fragilité et reste encore onéreuse à fabriquer en raison de la nécessité d'utiliser un moule à tiroir, comprenant des pièces mobiles, et donc plus complexe à mettre en oeuvre.Alternatively, the publication EP 1,584,576 proposes to project on the lower edge of the cover a band of arcuate circle of small section, apt to deform under the effect of the impact of the lid on the collar of the tank. This elastic band of small section however has a certain fragility and is still expensive to manufacture because of the need to use a drawer mold, comprising moving parts, and therefore more complex to implement.

L'invention a pour objet de proposer une solution alternative aux dispositifs décrits brièvement ci-dessus.The object of the invention is to propose an alternative solution to the devices described briefly above.

Le bac à déchet selon l'invention comporte une cuve et un couvercle mobile entre une position ouverte et une position fermée, ledit couvercle comprenant un bord inférieur inscrit sensiblement dans un plan et destiné à venir en contact avec une collerette supérieure de la cuve lorsque ledit couvercle est en position fermée.The garbage bin according to the invention comprises a tank and a cover movable between an open position and a closed position, said lid comprising a lower edge inscribed substantially in a plane and intended to come into contact with an upper flange of the tank when said lid is in closed position.

Ce bac se caractérise en ce que le couvercle comprend au moins une languette flexible s'étendant depuis la paroi du couvercle entre deux entailles formées depuis le bord inférieur du couvercle. La languette élastique comprend une ligne de contact parallèle au bord inférieur du couvercle, destinée à s'appuyer sur la collerette, et disposée à une distance donnée en dessous du plan dans lequel est inscrit le bord inférieur du couvercle.This tray is characterized in that the lid comprises at least one flexible tongue extending from the wall of the lid between two notches formed from the lower edge of the lid. The elastic tongue comprises a line of contact parallel to the lower edge of the cover, intended to rest on the collar, and disposed at a given distance below the plane in which is inscribed the lower edge of the cover.

Lors de la fermeture du couvercle, la languette élastique vient reposer sur la collerette avant que le bord inférieur du couvercle ne vienne lui-même en contact avec la collerette, et subit une déformation élastique permettant de limiter la vitesse d'impact du couvercle, et d'amortir le choc du couvercle sur la cuve. Il en résulte une diminution du bruit et de la nuisance sonore qu'il engendre.When closing the lid, the elastic tongue comes to rest on the collar before the lower edge of the lid itself comes into contact with the collar, and undergoes an elastic deformation to limit the impact velocity of the lid, and to dampen the shock of the lid on the tank. This results in a decrease in noise and noise that it generates.

Il est possible d'ajuster l'élasticité de la languette en changeant la longueur des entailles, en modifiant son inclinaison, en ajustant son épaisseur ou sa largeur, ou encore en réglant l'éloignement de la ligne de contact du plan dans lequel est inscrit le bord inférieur du couvercle.It is possible to adjust the elasticity of the tongue by changing the length of the cuts, changing its inclination, adjusting its thickness or width, or by setting the distance of the contact line from the plane in which is inscribed the bottom edge of the lid.

De plus, la forme de la languette élastique autorise une fabrication du couvercle par moulage sous injection sans qu'il soit nécessaire de faire appel à un moule complexe. L'absence d'angles, de parties creuses ou de recoins évite également l'accumulation de déchets.In addition, the shape of the elastic tongue allows a manufacture of the lid by injection molding without the need to use a complex mold. The absence of angles, hollow parts or recesses also prevents the accumulation of waste.

Le dispositif selon l'invention peut aussi comprendre isolément, ou en combinaison, les caractéristiques suivantes :

  • La ligne de contact est disposée en dessous du plan dans lequel est inscrit le bord inférieur du couvercle à une distance entre 3 mm et 15 mm.
  • La languette flexible comprend une première concavité orientée vers le haut et disposée de sorte qu'un plan tangent à la surface de la languette flexible et passant par la ligne de contact est parallèle au plan dans lequel est inscrit le bord inférieur du couvercle.- Un plan passant par la ligne de contact et par une ligne de flexion rejoignant le fond de chacune des entailles est incliné par rapport à une direction (V), perpendiculaire au plan (P) dans lequel est inscrit le bord inférieur (33) du couvercle, d'un angle compris entre 15° et 80°.- La languette flexible se prolonge en formant une seconde concavité orientée vers le bas et de manière à former une poignée permettant de soulever le couvercle.- Les entailles s'étendent depuis le bord inférieur du couvercle dans une direction perpendiculaire à ce dernier.
  • Les entailles ont une profondeur comprise entre 10 mm et 50 mm.
  • La languette flexible a une épaisseur comprise entre 1,5 mm et 3 mm.- Le couvercle est en polyéthylène haute densité.- La languette flexible est venue de matière avec le couvercle.
The device according to the invention may also comprise in isolation, or in combination, the following characteristics:
  • The contact line is disposed below the plane in which is inscribed the lower edge of the cover at a distance between 3 mm and 15 mm.
  • The flexible tongue includes a first concavity facing upwards and disposed so that a plane tangential to the surface of the flexible tongue and passing through the nip is parallel to the plane in which is inscribed the lower edge of the lid.- A plane passing through the nip and a line of contact bending joining the bottom of each of the notches is inclined with respect to a direction (V), perpendicular to the plane (P) in which is inscribed the lower edge (33) of the lid, an angle between 15 ° and 80 °. - The flexible tongue is extended by forming a second concavity oriented downwardly and so as to form a handle for lifting the lid.- The notches extend from the lower edge of the lid in a direction perpendicular thereto.
  • The cuts have a depth of between 10 mm and 50 mm.
  • The flexible tongue has a thickness of between 1.5 mm and 3 mm. The lid is made of high density polyethylene. The flexible tongue is integral with the lid.

L'invention sera mieux comprise à la lecture des figures annexées, qui sont fournies à titre d'exemples et ne présentent aucun caractère limitatif, dans lesquelles :- La figure 1 est une représentation schématique à main levée d'un bac comprenant un couvercle muni d'une languette élastique selon l'invention.- La figure 2 est une vue en coupe de la languette élastique avant de venir en appui sur la surface de la collerette supérieure de la cuve.- La figure 3 est une vue de face de la languette élastique.-La figure 4 est une vue en coupe de la languette élastique en appui sur la collerette supérieure de la cuve au moment de l'impact du couvercle sur la collerette supérieure de la cuve.The invention will be better understood on reading the appended figures, which are provided by way of examples and are in no way limiting in which: figure 1 is a schematic freehand representation of a tray comprising a lid provided with an elastic tongue according to the invention. figure 2 is a sectional view of the elastic tongue before coming to rest on the surface of the upper collar of the tank. figure 3 is a front view of the elastic tongue. figure 4 is a sectional view of the elastic tongue bearing on the upper flange of the tank at the time of the impact of the cover on the upper flange of the tank.

La figure 1 représente un bac à déchets 1 comprenant une cuve 2 et un couvercle 3. Le couvercle est relié à la cuve par une articulation 21 d'axe XX'.The figure 1 represents a garbage bin 1 comprising a tank 2 and a lid 3. The lid is connected to the tank by a hinge 21 of axis XX '.

De manière commune, ce bac est réalisé en polyéthylène haute densité (PEHD) dont les propriétés structurelles sont suffisantes pour subir des déformations élastiques sans risques de dégradation dans le temps.In common, this tray is made of high density polyethylene (HDPE) whose structural properties are sufficient to undergo elastic deformation without risk of degradation over time.

Le couvercle 3 lui-même, comprend un plateau 32 sensiblement horizontal bordé sur sa circonférence par un bandeau latéral 34 s'abaissant plus ou moins verticalement selon les types et les modèles de bacs à déchets. Ce bandeau latéral permet de recouvrir le pare-pluie (non visible) prolongeant la paroi des flancs de la cuve au-dessus de la collerette 20.The lid 3 itself comprises a substantially horizontal plate 32 bordered on its circumference by a lateral strip 34 lowering more or less vertically according to the types and models of waste bins. This sideband allows to cover the rain shield (not visible) extending the wall of the sides of the tank above the collar 20.

Le bord inférieur 33 du bandeau 32 vient reposer sur la surface supérieure de la collerette supérieure 20 de la cuve 2. Le bord inférieur 33 est donc inscrit dans un plan de manière à établir un contact uniforme sur toute la surface de la collerette permettant de réduire la pénétration d'agents externes. La largeur et la forme de la collerette 20 font l'objet de nombreuses normes et spécifications techniques pour autoriser la manipulation du bac par les engins de collecte des déchets.The lower edge 33 of the strip 32 rests on the upper surface of the upper flange 20 of the tank 2. The lower edge 33 is therefore inscribed in a plane so as to establish uniform contact over the entire surface of the collar to reduce the penetration of external agents. The width and the shape of the collar 20 are the subject of numerous standards and technical specifications to authorize the handling of the bin by the waste collection machinery.

Une languette flexible 30 s'étend depuis la paroi du couvercle entre deux entailles 31. Ces entailles 31 s'étendent elles-mêmes depuis le bord inférieur 33 du couvercle dans une direction sensiblement perpendiculaire audit bord inférieur 33.A flexible tongue 30 extends from the wall of the lid between two notches 31. These notches 31 themselves extend from the lower edge 33 of the lid in a direction substantially perpendicular to said lower edge 33.

En référence aux figures 2 et 3, dans lesquelles les détails de la languette flexible sont mieux visibles, une ligne de contact 301 représente l'ensemble des points de la languette 30 venant en contact avec la collerette de la cuve 2. Cette ligne de contact est localement sensiblement parallèle au bord inférieur 33.With reference to Figures 2 and 3 , in which the details of the flexible tongue are better visible, a contact line 301 represents all the points of the tongue 30 coming into contact with the flange of the tank 2. This line of contact is locally substantially parallel to the lower edge 33.

Lorsque le couvercle est libre et n'est pas en appui sur la collerette 21 de la cuve 2, la ligne de contact 301 se situe, à une distance d, en dessous d'un plan P dans lequel est inscrit le bord inférieur 33 du couvercle 3. Cette distance est ajustable pour augmenter ou réduire la course élastique de la languette flexible 30. En pratique, la distance d est utilement comprise entre 3 mm et 15 mm.When the lid is free and does not rest on the flange 21 of the tank 2, the contact line 301 is located at a distance d below a plane P in which is inscribed the lower edge 33 of the cover 3. This distance is adjustable to increase or reduce the elastic travel of the flexible tongue 30. In practice, the distance d is usefully between 3 mm and 15 mm.

La languette présente une première concavité 303 orientée vers le haut du bac à déchet. Il en résulte qu'un plan P' tangent à la languette flexible 30 et passant par la ligne de contact 301 est parallèle au plan P dans lequel est inscrit le bord inférieur 33.The tongue has a first concavity 303 facing up the garbage bin. As a result, a plane P 'tangential to the flexible tongue 30 and passing through the contact line 301 is parallel to the plane P in which is inscribed the lower edge 33.

Les entailles 31 ont une profondeur p qu'il est possible d'ajuster pour rendre la languette plus ou moins flexible. On observera ici que les entailles partent du bord inférieur 33 et peuvent cheminer sur toute la hauteur du bandeau 34 et s'étendre si nécessaire sur le plateau 32 du couvercle. En pratique, les entailles ont une profondeur p comprise entre 10 mm et 50 mm.The notches 31 have a depth p that can be adjusted to make the tongue more or less flexible. It will be observed here that the notches start from the lower edge 33 and can walk over the entire height of the strip 34 and extend if necessary on the plate 32 of the lid. In practice, the notches have a depth p between 10 mm and 50 mm.

Une ligne de flexion fictive 302, parallèle au bord inférieur 33, et passant par le fond de chacune des entailles 31, définit la limite entre le couvercle et la languette flexible à partir de laquelle la languette est libre de se déformer en flexion. Bien que la déformation élastique de la languette s'opère sur toute la longueur séparant la ligne de flexion 303 de la ligne de contact 301, on peut considérer que la ligne de flexion est équivalente à l'axe d'une articulation élastique autour de laquelle la languette flexible est mise en rotation.A fictitious bending line 302, parallel to the lower edge 33, and passing through the bottom of each of the notches 31, defines the boundary between the cover and the flexible tongue from which the tongue is free to bend deformed. Although the elastic deformation of the tongue takes place along the entire length separating the line bending 303 of the nip 301, it can be considered that the bending line is equivalent to the axis of an elastic hinge around which the flexible tongue is rotated.

Le plan R passant par la ligne de flexion 302 et par la ligne de contact 301 définit l'inclinaison d'angle a de la languette flexible par rapport à une direction perpendiculaire au plan P. Cette direction V est assimilée à la direction verticale, lorsque le couvercle est en position fermée. Cette inclinaison a est ajustable pour régler l'intensité du couple s'exerçant sur la ligne de contact lors de la fermeture du couvercle. On observera ici que lorsque cet angle d'inclinaison diminue, la force radiale transmise au couvercle augmente et l'atténuation du bruit est moindre. Aussi on choisira un angle a compris entre 15° et 80°.The plane R passing through the bending line 302 and the contact line 301 defines the angle inclination α of the flexible tongue relative to a direction perpendicular to the plane P. This direction V is similar to the vertical direction, when the lid is in the closed position. This inclination a is adjustable to adjust the intensity of the torque exerted on the nip when closing the lid. It will be observed here that when this angle of inclination decreases, the radial force transmitted to the cover increases and the attenuation of the noise is lower. Also we will choose an angle between 15 ° and 80 °.

Utilement, la languette flexible peut se prolonger et former une seconde concavité 304 orientée vers le bas du bac à déchets de manière à former une poignée 305 permettant à l'usager de relever le couvercle plus facilement.Usefully, the flexible tongue may extend and form a second concavity 304 facing downwardly of the refuse bin to form a handle 305 allowing the user to lift the lid more easily.

Pour des raisons de commodité, il apparait alors utile de disposer une languette flexible de chacun des côtés du couvercle de manière à offrir une solution d'ouverture simple et intuitive. Dans cet arrangement, l'amortissement de l'impact lors de la fermeture du couvercle est également mieux réparti.For reasons of convenience, it then appears useful to have a flexible tongue of each side of the lid so as to provide a simple and intuitive opening solution. In this arrangement, the damping of the impact when closing the lid is also better distributed.

L'épaisseur de la languette 30 est en règle générale sensiblement égale à l'épaisseur du couvercle 3 et comprise entre 1,5 mm et 3 mm. Toutefois pour ajuster la rigidité de la languette flexible, il est possible de régler localement cette épaisseur.The thickness of the tongue 30 is generally substantially equal to the thickness of the lid 3 and between 1.5 mm and 3 mm. However, to adjust the stiffness of the flexible tongue, it is possible to adjust this thickness locally.

Enfin, la largeur de la languette flexible 30 permet aussi de modifier l'élasticité de la languette 30. On veillera alors à ce que la largeur de la languette soit compatible avec la largeur nécessaire à la préhension par la main d'un usager.Finally, the width of the flexible tongue 30 also makes it possible to modify the elasticity of the tongue 30. It will then be ensured that the width of the tongue is compatible with the width necessary for grasping by the hand of a user.

La figure 4 illustre la position de la languette au moment de l'impact du couvercle sur la collerette supérieure de la cuve.The figure 4 illustrates the position of the tongue at the time of the impact of the cover on the upper flange of the tank.

La force d'impact I comprend une composante radiale Ir passant par la ligne de flexion 302 et une composante circonférentielle Ic engendrant le couple de flexion de la languette autour de l'axe 302. On peut considérer que la composante radiale Ir se transmet directement au couvercle sans effet d'amortissement, et plus la valeur de cette composante Ir est importante moins l'effet sonore produit au moment du choc est atténué. Comme cela a été indiqué ci-dessus, l'augmentation de l'inclinaison a de la languette flexible 30 permet de réduire ce phénomène.The impact force I comprises a radial component I r passing through the bending line 302 and a circumferential component I c generating the bending torque of the tongue about the axis 302. It can be considered that the radial component I r is transmits directly to the cover without damping effect, and the higher the value of this component I r is less the sound effect produced at the moment of impact is attenuated. As indicated above, increasing the inclination of the flexible tongue 30 reduces this phenomenon.

Dans l'exemple de mise en oeuvre de l'invention servant de base à la présente description, la languette flexible 30 est venue de matière avec le couvercle 3 du bac à déchets. Cette solution présente de nombreux avantages en terme de fabrication. Toutefois, il serait tout à fait possible d'envisager de disposer une lame en métal, fixée sur la ligne de flexion entre les deux découpes 31, par exemple par des rivets, pour obtenir des effets identiques.In the exemplary implementation of the invention serving as a basis for the present description, the flexible tongue 30 is integral with the lid 3 of the hopper. This solution has many advantages in terms of manufacturing. However, it would be quite possible to envisage having a metal blade, fixed on the bending line between the two cutouts 31, for example by rivets, to obtain identical effects.

Lorsque la languette flexible est venue de matière avec le couvercle, elle peut être moulée en même temps que ce dernier. On observera qu'il n'est pas nécessaire de mettre en oeuvre des pièces mobiles en raison de l'absence de parties en contredépouille. De plus, la technologie de moulage par injection autorise toutes les variations de formes et d'épaisseur permettant de réaliser une pièce conforme aux exigences de flexibilité et de résistance telles que discutées ci-dessus.When the flexible tongue is integral with the lid, it can be molded at the same time as the lid. It will be observed that it is not necessary to use moving parts because of the absence of parts underdepoise. In addition, the injection molding technology allows all variations in shape and thickness to achieve a part meeting the requirements of flexibility and strength as discussed above.

NOMENCLATURENOMENCLATURE

11
Bac à déchets.Waste bin.
22
Cuve.Tank.
2020
Collerette supérieure.Upper collar.
2121
Articulation du couvercle sur la cuve.Articulation of the lid on the tank.
33
Couvercle.Lid.
3030
Languette flexible.Flexible tongue.
301301
Ligne de contact de la languette flexible.Contact line of the flexible tongue.
302302
Ligne de flexion rejoignant le fond des entailles.Bending line joining the bottom of the cuts.
303303
Première concavité orientée vers le haut.First concavity facing up.
304304
Seconde concavité orientée vers le bas.Second concavity facing down.
305305
Poignée.Handle.
3131
Entailles.Notches.
3232
Plateau du couvercle.Cover tray.
3333
Bord inférieur du couvercle.Bottom edge of the lid.
3434
Bandeau latéral du couvercle.Side band of the lid.
PP
Plan dans lequel est inscrit le bord inférieur du couvercle.Plan in which is inscribed the lower edge of the lid.
P'P '
Plan tangent à la languette flexible passant par la ligne de contact.Tangent plane to the flexible tongue passing through the line of contact.
RR
Plan passant par les lignes 301 et 302.Plan passing through lines 301 and 302.
VV
Direction perpendiculaire au plan P.Direction perpendicular to plane P.
aat
Angle formé par le plan Q avec la direction V.Angle formed by plane Q with direction V.
pp
Profondeur des entailles 31.Depth of cuts 31.
II
Force d'impact du couvercle sur la collerette de la cuve.Impact force of the lid on the collar of the tank.
Ir I r
Composante radiale de la force d'impact.Radial component of the impact force.
Ic I c
Composante circonférentielle de la force d'impact.Circumferential component of the impact force.
XX'XX '
Axe de rotation du couvercle dans l'articulation 21.Rotation axis of the cover in the articulation 21.

Claims (10)

  1. Container (1) comprising a tank (2) and a lid (3) movable between an open position and a closed position, said lid comprising a lower edge (33) lying substantially in a plane (P) and intended to come into contact with an upper flange (20) of the tank (2) when said lid (3) is in the closed position, characterised in that the lid (3) comprises at least one flexible tab (30) extending from the wall (32, 34) of the lid (3) between two notches (31) formed from the lower edge (33) of the lid (3), and comprising a contact line (301) parallel to the lower edge (33) of the lid (3), intended to rest on the flange (20) and arranged at a given distance (d) below the plane (P) containing the lower edge (33) of the lid (3).
  2. Container (1) according to claim 1, wherein the contact line (301) is arranged below the plane (P) containing the lower edge (33) of the lid at a distance (d) of between 3 mm and 15 mm.
  3. Container (1) according to claim 1 or 2, wherein the flexible tab (30) comprises a first concavity (303) facing upwards and arranged so that a plane (P') tangential to the surface of the flexible tab (30) and passing through the contact line (301) is parallel to the plane (P) containing the lower edge (33) of the lid (3).
  4. Container (1) according to any one of the preceding claims, wherein a plane (R) passing through the contact line (301) and through a bending line (302) joining the bottom of each of the notches (31) is inclined at an angle (a) of between 15° and 80° relative to a direction (V) perpendicular to the plane (P) containing the lower edge (33) of the lid.
  5. Container (1) according to any one of the preceding claims, wherein the flexible tab (30) extends by forming a second concavity (304) facing downwards so as to form a handle (305) to lift the lid (30).
  6. Container (1) according to any one of the preceding claims, wherein the notches (31) extend from the lower edge (33) of the lid (30) in a direction perpendicular thereto.
  7. Container (1) according to any one of the preceding claims, wherein the depth of the notches (31) is between 10 mm and 50 mm.
  8. Container (1) according to any one of the preceding claims, wherein the thickness of the flexible tab (30) is between 1.5 mm and 3 mm.
  9. Container (1) according to any one of the preceding claims, wherein the lid (3) is made of high density polyethylene.
  10. Container (1) according to any one of the preceding claims, wherein the flexible tab (30) is made in one piece with the lid (3).
EP17210003.4A 2016-12-28 2017-12-22 Container lid having a damping tab Active EP3342733B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1663474A FR3061158B1 (en) 2016-12-28 2016-12-28 COVER OF CONTAINER COMPRISING A DAMPING TAB

Publications (2)

Publication Number Publication Date
EP3342733A1 EP3342733A1 (en) 2018-07-04
EP3342733B1 true EP3342733B1 (en) 2019-11-13

Family

ID=58162901

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17210003.4A Active EP3342733B1 (en) 2016-12-28 2017-12-22 Container lid having a damping tab

Country Status (5)

Country Link
EP (1) EP3342733B1 (en)
DK (1) DK3342733T3 (en)
ES (1) ES2771348T3 (en)
FR (1) FR3061158B1 (en)
PT (1) PT3342733T (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0288066B1 (en) 1987-04-22 1992-09-02 Edelhoff M.S.T.S. Gmbh Refuse receptacle
FR2805529B1 (en) 2000-02-24 2002-11-29 Plastic Omnium Cie CONTAINER WITH NOISE FOR CLOSING THE REDUCED COVER
ES1057109Y (en) * 2004-03-25 2004-10-01 Contenur Espana Sl ACOUSTIC SHOCK ABSORBER FOR CONTAINER COVERS.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
PT3342733T (en) 2020-01-22
FR3061158A1 (en) 2018-06-29
ES2771348T3 (en) 2020-07-06
EP3342733A1 (en) 2018-07-04
DK3342733T3 (en) 2020-02-10
FR3061158B1 (en) 2019-05-24

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