EP1166692B1 - Dripless pouring spout - Google Patents

Dripless pouring spout Download PDF

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Publication number
EP1166692B1
EP1166692B1 EP01420132A EP01420132A EP1166692B1 EP 1166692 B1 EP1166692 B1 EP 1166692B1 EP 01420132 A EP01420132 A EP 01420132A EP 01420132 A EP01420132 A EP 01420132A EP 1166692 B1 EP1166692 B1 EP 1166692B1
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EP
European Patent Office
Prior art keywords
pouring
edge
jug according
spout
wall
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP01420132A
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German (de)
French (fr)
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EP1166692A1 (en
Inventor
Christophe Guillemin
Erik Lebrun
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SEB SA
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SEB SA
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Publication date
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/40—Closures with filling and discharging, or with discharging, devices with drip catchers or drip-preventing means
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47G—HOUSEHOLD OR TABLE EQUIPMENT
    • A47G19/00—Table service
    • A47G19/12—Vessels or pots for table use
    • A47G19/14—Coffee or tea pots
    • A47G19/145—Drip catchers for coffee or tea pots

Definitions

  • the present invention relates to the general technical field of jugs for hot or cold beverages.
  • the present invention relates in particular, but not exclusively, to jugs for hot beverage machines such as electric coffee makers.
  • the object of the present invention is to provide a carafe having a spout for a satisfactory pouring of the drink, avoiding the fallout of liquid drops out of the carafe, without requiring special operations for cleaning.
  • Another object of the present invention is to provide a jug having a spout for a satisfactory pouring of the beverage, avoiding the fallout of drops of liquids out of the carafe, which is a simple and economical construction.
  • a carafe in particular for a coffee maker, comprising a container having a bottom, the container being associated with a pouring spout made of plastic material having a central pouring portion comprising a pouring end and lateral parts, the spout having an upper wall connected to a lower wall by a connecting surface, the upper wall being inclined inwards of the container, because in the central pouring portion the connecting surface is free of sharp edges and has an upper edge having a radius of curvature in a radial section of the pouring end of between 0.5 and 2 mm , the connecting surface having a lower edge whose radius of curvature in a radial section of the pouring end is less than the radius of curvature of the upper edge according to a radial section of the pouring end, the lower edge having a roughness more important than the upper edge.
  • a sharp edge-free connection surface may, however, include burrs resulting from a demolding plane of the plastic part. Stopping the jet and returning the drink in the spout are facilitated, the height to be crossed by the drop being limited. The greater roughness of the lower edge upsets the flow of the beverage along the bottom wall.
  • the inner wall has a glossy surface finish. Such an arrangement facilitates the flow of drink and limits the supply of the suspended drop when lifting the carafe.
  • the upper edge has a glossy surface finish. This arrangement also limits the feeding of the hanging drop when lifting the carafe.
  • the lower wall has a greater roughness than the upper wall. This arrangement limits the volume of suspended drops.
  • a central edge is disposed between the upper edge and the lower edge.
  • the central edge has a greater roughness than the upper edge.
  • the central edge may be vertical or inclined and / or have a slight lateral projection relative to the upper edge, due for example to a demolding plane.
  • the upper edge has a vertex forming a plane.
  • the inclination of the upper wall is between 25 ° and 45 ° relative to the bottom.
  • the upper wall has an inclination of less than 10 ° with the bottom wall. This arrangement reduces the thickness of the pour spout.
  • the thickness of the pouring end is less than 1.2 mm. This arrangement makes it possible to avoid retaining a large quantity of liquid under the spout, and to avoid causing the drop of drops suspended by coalescence.
  • the radial length of the bottom wall is greater than 4 mm in the axis of the spout. This arrangement allows to collect a drop under the spout by limiting the risk of forming a liquid path along the wall of the carafe.
  • the lower wall is extended by an external recess towards the base of the spout.
  • the outer recess is substantially vertical. Such an arrangement is easy to achieve while allowing effective retention of the drop.
  • the height of the outer recess is greater than 1 mm. Such an arrangement in fact prevents the progress of the drop along the base of the spout.
  • the outer recess has side portions raised in their upper zone relative to the upper zone of a central portion of said outer recess. Such an arrangement facilitates the retention of the suspended drop, which is maintained by the surface tension forces of the liquid.
  • the central part of the outer recess is prominent with respect to the lateral parts of the outer recess.
  • Such an arrangement makes it possible to further improve the retention of the suspended drop. For the same volume of drop, the drop is more pressed against the walls.
  • the spout is made of polypropylene. Such a material has good molding properties, while being inexpensive.
  • the jug 1 illustrated at figure 1 comprises a double-walled isothermal container 2 made of stainless steel.
  • the container 2 has a bottom 7 and is surmounted by an annular piece 3 having a spout 4.
  • a lid 5 closes the piece 3 while leaving a passage to the spout 4 for the drink, if desired by means of a mechanism.
  • a handle 6 is issued 3.
  • Part 3 is made of plastic material, for example polypropylene.
  • the carafe 1 can in particular be used to collect the drink made with a coffee maker.
  • the spout 4 has a curved upper wall 10, of rectilinear section, inclined towards the inside of the carafe. As illustrated in figure 3 the angle of inclination is 35 °. This angle of inclination is defined relative to the bottom 7 of the jug.
  • the upper wall 10 has a central pouring portion 11 having a curvature more pronounced than the curvature of the lateral portions 12. This arrangement limits the flow width of the beverage when pouring.
  • the spout 4 also has a bottom wall 20, substantially parallel to the top wall 10.
  • the walls 10 and 20 form a pouring end 22.
  • the lower portion of the wall 20 is connected by a substantially vertical outer recess 21 to a base 28.
  • the top wall 10 has a glossy surface finish.
  • the surface condition of the upper wall 10 is therefore very smooth.
  • the lower wall 20, the outer recess 21 and the base 28 have a rougher surface condition.
  • Such a surface state can be obtained by electroerosion.
  • the depth of roughness obtained is advantageously between 0.005 and 0.10 mm and preferably between 0.02 and 0.03 mm.
  • the upper wall 10 is connected to the bottom wall 20 by a rounded connecting surface 23.
  • the connecting surface 23 has a curved upper edge 24 extended by a substantially vertical lateral edge 25 and then by a curved lower edge 26. Due to the inclination of the walls 10 and 20 of the spout 4, the upper edge 24 has a curvature extending over 125 ° while the lower edge 26 has a curvature extending over 55 °.
  • the upper edge 24 has a vertex 27 in the central pouring portion 11. As shown in FIG. figure 2 , the vertex 27 also extends to the lateral portions 12. The vertex 27 is in a substantially horizontal plane. However, the pouring end 22 is slightly lower than the lateral parts, the longitudinal inclination being less than 3 °.
  • the spout 4 has no sharp edge between the upper wall 10 and the connecting surface 23 nor between the connecting surface 23 and the bottom wall 20.
  • the spout 4 also does not have a sharp edge between the edge upper 24 of the connecting surface 23 and the lateral edge 25, or between the lateral edge 25 and the lower edge 26 of the connecting surface 23.
  • the smooth surface state of the upper wall 10 extends to the edge upper 24 included.
  • the rough surface condition of the bottom wall 20 extends to the side edge 25 inclusive.
  • a demolding plane can thus be located between the upper edge 24 and the lateral edge 25.
  • the axial length of the bottom wall 20 between the outer recess 21 and the lower edge 26 is 5 mm, and the height of the outer recess 21 is 1.1 mm.
  • the radius of curvature of the lower edge 26 is smaller than the radius of curvature of the upper edge 24.
  • the radius of the upper edge 24 is 0.5 mm and the radius of the lower edge 26 is 0.3 mm.
  • the height of the lateral edge 25 is smaller than the radius of the lower edge 26. In the example illustrated in FIG. figure 3 the height of the lateral edge 25 is 0.1 mm.
  • the thickness of the pouring end 22 is smaller than the diameter of a drop of beverage suspended at the pouring end under the bottom wall 20 when said wall is substantially horizontal. This arrangement makes it possible to limit the quantity of drink joining the forming drop.
  • the thickness of the pouring end 22 of the spout 4 is 1 mm. A larger thickness can be envisaged, without exceeding 1.5 mm for a polypropylene spout.
  • Polypropylene has a higher surface energy than plastics such as PTFE, ABS or polyethylene.
  • the pouring end must have a thickness less than the diameter of the suspended drop. As the diameter of the suspended drop is greater with the polypropylene than with the other aforementioned materials, the thickness of the pouring end can thus be larger and therefore less fragile.
  • the base 28 of the spout 4 is connected in a central part to the outer recess 21 and in the side portions to a substantially vertical wall 29.
  • the outer recess 21 has an elongated shape in a substantially horizontal orientation.
  • the outer recess 21 has ends 32 raised relative to the central portion 31.
  • the angle relative to the horizontal of the connecting line of the outer recess 21 to the bottom wall 20 is preferably between 10 ° and 20 ° and is for example 15 °, as shown in FIG. figure 4 .
  • the drink flows through the spout 4.
  • the smoothness of the upper wall 10 facilitates the flow of the liquid.
  • the drink may flow partly following the bottom wall 20, due to the attraction of the liquid by the surface of the end of the spout.
  • the axial length of the bottom wall 20 then prevents the flow of the drink along the base 28 of the spout.
  • the payout is sufficiently straightforward, that is to say when the drink flows without significant jolts thanks to a higher speed and a higher flow rate, the sufficiently small radius of curvature of the upper edge 24 allows the liquid to flow. escape the attraction of the walls of the spout.
  • the smooth nature of the upper edge 24 facilitates the flow of the drink out of the spout 4.
  • the axial length of the bottom wall 20 prevents the drink from flowing along the side wall of the carafe.
  • the spout 4 makes it possible to avoid breaking suddenly the flow of the liquid during the raising said spout, due to the absence of sharp edge along the connecting surface 23. As a result, the amount of liquid held under the spout 4 is less.
  • a drop may also remain suspended at the pouring end 22 after stopping the flow of the drink.
  • the suspended drop then bears on both the upper edge 24 and the lower edge 26. Under these conditions, the drop slides along the bottom wall 20 when the user lifts the spout 4. The roughness of the wall lower 20 brakes the movement of the drop.
  • the external recess 21 makes it possible to capture the drop suspended under the outer wall 20, which tends to slide under the said wall when the jug 1 is brought back to the rest position illustrated in FIG. figure 3 .
  • Summit 27 does not necessarily fit into a plan.
  • the height of the top 27 of the upper edge 24 may in particular be lower in the central portion of the pour 11, so as to form a neck.
  • the upper edge 24 and / or the lower edge 26 may have a variable radius of curvature.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Table Devices Or Equipment (AREA)
  • Cartons (AREA)
  • Closures For Containers (AREA)
  • Bag Frames (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)

Abstract

The pourer (4), made from plastic and having a central lip and side sections, has the central portion of the lip made without sharp edges, while its upper edge (24) has a cross-section with a radius of curvature of between 0.5 and 2 mm, and the adjacent lower edge (26) has a smaller radius of curvature. The pourer's inner wall (10) and upper edge are smoothly polished, and the inner wall lies at an angle of 25 to 45 deg to the base of the pot.

Description

La présente invention concerne le domaine technique général des verseuses pour boissons chaudes ou froides. La présente invention concerne en particulier, mais non exclusivement, les verseuses pour les machines à boissons chaudes telles que les cafetières électriques.The present invention relates to the general technical field of jugs for hot or cold beverages. The present invention relates in particular, but not exclusively, to jugs for hot beverage machines such as electric coffee makers.

Il est connu du document EP 0 650 681 une verseuse pour café ou thé, comportant un bec verseur dans lequel est disposé un bec verseur additionnel d'une épaisseur plus réduite que le bec verseur principal. Le bec verseur additionnel présente latéralement des interstices avec le bec verseur principal. Cette disposition permet de favoriser le retour dans la verseuse de la goutte suspendue à l'extrémité du bec verseur additionnel, lorsque la verseuse quitte la position de versement pour revenir en position de repos. Le bec verseur additionnel peut être retiré à des fins de nettoyage. Toutefois, une telle opération est fastidieuse, et une telle construction présente un surcoût par rapport à un bec verseur simple.It is known from the document EP 0 650 681 a carafe for coffee or tea, having a spout in which is disposed an additional spout of a smaller thickness than the main spout. The additional spout has laterally interstices with the main spout. This arrangement makes it possible to encourage the return into the jug of the drop suspended at the end of the additional spout, when the carafe leaves the pouring position to return to the rest position. The additional spout can be removed for cleaning purposes. However, such an operation is tedious, and such a construction has an additional cost compared to a simple spout.

L'objet de la présente invention est de proposer une verseuse comportant un bec verseur permettant un versement satisfaisant de la boisson, évitant la retombée de gouttes de liquide hors de la verseuse, sans pour autant nécessiter d'opérations particulières pour le nettoyage.The object of the present invention is to provide a carafe having a spout for a satisfactory pouring of the drink, avoiding the fallout of liquid drops out of the carafe, without requiring special operations for cleaning.

Un autre objet de la présente invention est de proposer une verseuse comportant un bec verseur permettant un versement satisfaisant de la boisson, évitant la retombée de gouttes de liquides hors de la verseuse, qui soit d'une construction simple et économique.Another object of the present invention is to provide a jug having a spout for a satisfactory pouring of the beverage, avoiding the fallout of drops of liquids out of the carafe, which is a simple and economical construction.

Ces objets sont atteints avec une verseuse, notamment pour cafetière électrique, comportant un récipient présentant un fond, le récipient étant associé à un bec verseur en matière plastique présentant une partie centrale de versement comportant une extrémité de versement et des parties latérales, le bec verseur comportant une paroi supérieure reliée à une paroi inférieure par une surface de raccordement, la paroi supérieure étant inclinée vers l'intérieur du récipient, du fait que dans la partie centrale de versement la surface de raccordement est exempte d'arête vive et comporte un bord supérieur présentant un rayon de courbure selon une section radiale de l'extrémité de versement compris entre 0,5 et 2 mm, la surface de raccordement comportant un bord inférieur dont le rayon de courbure selon une section radiale de l'extrémité de versement est inférieur au rayon de courbure du bord supérieur selon une section radiale de l'extrémité de versement, le bord inférieur présentant une rugosité plus importante que le bord supérieur. Ces dispositions permettent un versement satisfaisant de la boisson tout en limitant la rétention de gouttes à l'extrémité du bec verseur à l'arrêt du versement. Une surface de raccordement exempte d'arête vive peut toutefois inclure des bavures résultant d'un plan de démoulage de la pièce plastique. L'arrêt du jet et le retour de la boisson dans le bec verseur sont facilités, la hauteur à franchir par la goutte étant limitée. La rugosité plus importante du bord inférieur contrarie l'écoulement de la boisson le long de la paroi inférieure.These objects are achieved with a carafe, in particular for a coffee maker, comprising a container having a bottom, the container being associated with a pouring spout made of plastic material having a central pouring portion comprising a pouring end and lateral parts, the spout having an upper wall connected to a lower wall by a connecting surface, the upper wall being inclined inwards of the container, because in the central pouring portion the connecting surface is free of sharp edges and has an upper edge having a radius of curvature in a radial section of the pouring end of between 0.5 and 2 mm , the connecting surface having a lower edge whose radius of curvature in a radial section of the pouring end is less than the radius of curvature of the upper edge according to a radial section of the pouring end, the lower edge having a roughness more important than the upper edge. These provisions allow a satisfactory payment of the drink while limiting the retention of drops at the end of the spout at the stop payment. A sharp edge-free connection surface may, however, include burrs resulting from a demolding plane of the plastic part. Stopping the jet and returning the drink in the spout are facilitated, the height to be crossed by the drop being limited. The greater roughness of the lower edge upsets the flow of the beverage along the bottom wall.

Selon une autre disposition avantageuse, la paroi intérieure présente un état de surface poli glace. Une telle disposition facilite l'écoulement de boisson et limite l'alimentation de la goutte suspendue lors du relevage de la verseuse.According to another advantageous arrangement, the inner wall has a glossy surface finish. Such an arrangement facilitates the flow of drink and limits the supply of the suspended drop when lifting the carafe.

Selon une autre disposition avantageuse, le bord supérieur présente un état de surface poli glace. Cette disposition limite aussi l'alimentation de la goutte suspendue lors du relevage de la verseuse.According to another advantageous arrangement, the upper edge has a glossy surface finish. This arrangement also limits the feeding of the hanging drop when lifting the carafe.

Selon une autre disposition avantageuse, la paroi inférieure présente une rugosité plus importante que la paroi supérieure. Cette disposition limite le volume des gouttes suspendues.According to another advantageous arrangement, the lower wall has a greater roughness than the upper wall. This arrangement limits the volume of suspended drops.

Selon une forme de réalisation, un bord central est disposé entre le bord supérieur et le bord inférieur.According to one embodiment, a central edge is disposed between the upper edge and the lower edge.

Avantageusement alors le bord central présente une rugosité plus importante que le bord supérieur.Advantageously then the central edge has a greater roughness than the upper edge.

Le bord central peut être vertical ou incliné et/ou présenter une légère saillie latérale par rapport au bord supérieur, due par exemple à un plan de démoulage.The central edge may be vertical or inclined and / or have a slight lateral projection relative to the upper edge, due for example to a demolding plane.

Selon une autre disposition avantageuse, le bord supérieur comporte un sommet s'inscrivant dans un plan. Une telle disposition simplifie la réalisation du bec verseur.According to another advantageous arrangement, the upper edge has a vertex forming a plane. Such an arrangement simplifies the realization of the spout.

Selon une autre disposition avantageuse, l'inclinaison de la paroi supérieure est comprise entre 25° et 45° par rapport au fond.According to another advantageous arrangement, the inclination of the upper wall is between 25 ° and 45 ° relative to the bottom.

Selon une autre disposition avantageuse, la paroi supérieure présente une inclinaison de moins de 10° avec la paroi inférieure. Cette disposition permet de réduire l'épaisseur du bec de versement.According to another advantageous arrangement, the upper wall has an inclination of less than 10 ° with the bottom wall. This arrangement reduces the thickness of the pour spout.

Avantageusement alors, l'épaisseur de l'extrémité de versement est inférieure à 1,2 mm. Cette disposition permet d'éviter de retenir une grande quantité de liquide sous le bec verseur, et d'éviter de provoquer la chute de gouttes suspendues par coalescence.Advantageously then, the thickness of the pouring end is less than 1.2 mm. This arrangement makes it possible to avoid retaining a large quantity of liquid under the spout, and to avoid causing the drop of drops suspended by coalescence.

Selon une autre disposition avantageuse, la longueur radiale de la paroi inférieure est supérieure à 4 mm dans l'axe du bec verseur. Cette disposition permet de recueillir une goutte sous le bec verseur en limitant le risque de formation d'un chemin liquide le long de la paroi de la verseuse.According to another advantageous arrangement, the radial length of the bottom wall is greater than 4 mm in the axis of the spout. This arrangement allows to collect a drop under the spout by limiting the risk of forming a liquid path along the wall of the carafe.

Selon une autre disposition avantageuse, la paroi inférieure est prolongée par un décrochement extérieur vers la base du bec verseur. Une telle disposition permet de retenir encore plus efficacement la goutte formée sous le bec verseur.According to another advantageous arrangement, the lower wall is extended by an external recess towards the base of the spout. Such an arrangement makes it possible to retain even more effectively the drop formed under the spout.

Avantageusement le décrochement extérieur est sensiblement vertical. Une telle disposition est facile à réaliser tout en permettant une rétention efficace de la goutte.Advantageously, the outer recess is substantially vertical. Such an arrangement is easy to achieve while allowing effective retention of the drop.

Selon une forme de réalisation préférée, la hauteur du décrochement extérieur est supérieure à 1 mm. Une telle disposition évite en effet la progression de la goutte le long de la base du bec verseur.According to a preferred embodiment, the height of the outer recess is greater than 1 mm. Such an arrangement in fact prevents the progress of the drop along the base of the spout.

Avantageusement alors le décrochement extérieur présente des parties latérales relevées dans leur zone supérieure par rapport à la zone supérieure d'une partie centrale dudit décrochement extérieur. Une telle disposition permet de faciliter la rétention de la goutte suspendue, qui est maintenue par les forces de tension superficielle du liquide.Advantageously then the outer recess has side portions raised in their upper zone relative to the upper zone of a central portion of said outer recess. Such an arrangement facilitates the retention of the suspended drop, which is maintained by the surface tension forces of the liquid.

Avantageusement encore la partie centrale du décrochement extérieur est proéminente par rapport aux parties latérales du décrochement extérieur. Une telle disposition permet d'améliorer encore la rétention de la goutte suspendue. Pour un même volume de goutte, la goutte est davantage plaquée contre les parois.Advantageously, the central part of the outer recess is prominent with respect to the lateral parts of the outer recess. Such an arrangement makes it possible to further improve the retention of the suspended drop. For the same volume of drop, the drop is more pressed against the walls.

Selon un mode de réalisation, le bec verseur est réalisé en polypropylène. Un tel matériau présente de bonnes propriétés de moulage, tout en étant peu onéreux.According to one embodiment, the spout is made of polypropylene. Such a material has good molding properties, while being inexpensive.

L'invention sera mieux comprise à l'étude d'un exemple de réalisation, pris à titre nullement limitatif, et illustré dans les figures annexées dans lesquelles :

  • la figure 1 est une vue d'une verseuse comportant un bec verseur selon l'invention,
  • la figure 2 est une vue en perspective du bec verseur montré à la figure 1,
  • la figure 3 est une vue en coupe verticale selon une section radiale verticale du bec verseur montré aux figures 1 et 2,
  • la figure 4 est une vue de face du bec verseur montré aux figures 1 à 3,
  • la figure 5 est une vue de côté du bec verseur montré aux figures 1 à 4.
The invention will be better understood from the study of an exemplary embodiment, taken in a nonlimiting manner, and illustrated in the appended figures in which:
  • the figure 1 is a view of a carafe having a spout according to the invention,
  • the figure 2 is a perspective view of the spout shown in the figure 1 ,
  • the figure 3 is a vertical sectional view along a vertical radial section of the pouring spout shown in FIGS. figures 1 and 2 ,
  • the figure 4 is a front view of the spout shown in Figures 1 to 3 ,
  • the figure 5 is a side view of the pouring spout shown in Figures 1 to 4 .

La verseuse 1 illustrée à la figure 1 comporte un récipient 2 isotherme à double paroi, réalisé en acier inoxydable. Le récipient 2 présente un fond 7 et est surmonté d'une pièce annulaire 3 comportant un bec verseur 4. Un couvercle 5 ferme la pièce 3 tout en laissant un passage vers le bec verseur 4 pour la boisson, si désiré au moyen d'un mécanisme. Une poignée 6 est issue latéralement de la pièce 3. La pièce 3 est réalisée en matière plastique, par exemple en polypropylène. La verseuse 1 peut notamment être utilisée pour recueillir la boisson réalisée avec une cafetière électrique.The jug 1 illustrated at figure 1 comprises a double-walled isothermal container 2 made of stainless steel. The container 2 has a bottom 7 and is surmounted by an annular piece 3 having a spout 4. A lid 5 closes the piece 3 while leaving a passage to the spout 4 for the drink, if desired by means of a mechanism. A handle 6 is issued 3. Part 3 is made of plastic material, for example polypropylene. The carafe 1 can in particular be used to collect the drink made with a coffee maker.

Tel que mieux visible aux figures 2 et 3, le bec verseur 4 comporte une paroi supérieure 10 incurvée, de section rectiligne, inclinée vers l'intérieur de la verseuse. Tel qu'illustré à la figure 3 l'angle d'inclinaison est de 35°. Cet angle d'inclinaison est défini par rapport au fond 7 de la verseuse. La paroi supérieure 10 comporte une partie centrale de versement 11 présentant une courbure plus prononcée que la courbure des parties latérales 12. Cette disposition permet de limiter la largeur d'écoulement de la boisson lors du versement.As best seen in Figures 2 and 3 , the spout 4 has a curved upper wall 10, of rectilinear section, inclined towards the inside of the carafe. As illustrated in figure 3 the angle of inclination is 35 °. This angle of inclination is defined relative to the bottom 7 of the jug. The upper wall 10 has a central pouring portion 11 having a curvature more pronounced than the curvature of the lateral portions 12. This arrangement limits the flow width of the beverage when pouring.

Le bec verseur 4 comporte aussi une paroi inférieure 20, sensiblement parallèle à la paroi supérieure 10. Les parois 10 et 20 forment une extrémité de versement 22. La partie inférieure de la paroi 20 est reliée par un décrochement extérieur 21 sensiblement vertical à une base 28.The spout 4 also has a bottom wall 20, substantially parallel to the top wall 10. The walls 10 and 20 form a pouring end 22. The lower portion of the wall 20 is connected by a substantially vertical outer recess 21 to a base 28.

La paroi supérieure 10 présente un état de surface poli glace. L'état de surface de la paroi supérieure 10 est donc très lisse. La paroi inférieure 20, le décrochement extérieur 21 et la base 28 présentent un état de surface plus rugueux. Un tel état de surface peut être obtenu par électroérosion. La profondeur de rugosité obtenue est avantageusement comprise entre 0,005 et 0,10 mm et de préférence entre 0,02 et 0,03 mm.The top wall 10 has a glossy surface finish. The surface condition of the upper wall 10 is therefore very smooth. The lower wall 20, the outer recess 21 and the base 28 have a rougher surface condition. Such a surface state can be obtained by electroerosion. The depth of roughness obtained is advantageously between 0.005 and 0.10 mm and preferably between 0.02 and 0.03 mm.

La paroi supérieure 10 est raccordée à la paroi inférieure 20 par une surface de raccordement 23 arrondie. Tel que montré à la figure 3, la surface de raccordement 23 présente un bord supérieur 24 incurvé prolongé par un bord latéral 25 sensiblement vertical puis par un bord inférieur 26 incurvé. Du fait de l'inclinaison des parois 10 et 20 du bec 4, le bord supérieur 24 présente une courbure s'étendant sur 125° alors que le bord inférieur 26 présente une courbure s'étendant sur 55°. Le bord supérieur 24 présente un sommet 27 dans la partie centrale de versement 11. Tel que représenté à la figure 2, le sommet 27 s'étend également aux parties latérales 12. Le sommet 27 s'inscrit dans un plan sensiblement horizontal. Toutefois l'extrémité de versement 22 est légèrement plus basse que les parties latérales, l'inclinaison longitudinale étant inférieure à 3°.The upper wall 10 is connected to the bottom wall 20 by a rounded connecting surface 23. As shown in figure 3 , the connecting surface 23 has a curved upper edge 24 extended by a substantially vertical lateral edge 25 and then by a curved lower edge 26. Due to the inclination of the walls 10 and 20 of the spout 4, the upper edge 24 has a curvature extending over 125 ° while the lower edge 26 has a curvature extending over 55 °. The upper edge 24 has a vertex 27 in the central pouring portion 11. As shown in FIG. figure 2 , the vertex 27 also extends to the lateral portions 12. The vertex 27 is in a substantially horizontal plane. However, the pouring end 22 is slightly lower than the lateral parts, the longitudinal inclination being less than 3 °.

Le bec verseur 4 ne présente pas d'arête vive entre la paroi supérieure 10 et la surface de raccordement 23 ni entre la surface de raccordement 23 et la paroi inférieure 20. Le bec 4 ne présente pas non plus d'arête vive entre le bord supérieur 24 de la surface de raccordement 23 et le bord latéral 25, ni entre le bord latéral 25 et le bord inférieur 26 de la surface de raccordement 23. L'état de surface lisse de la paroi supérieure 10 s'étend jusqu'au bord supérieur 24 inclus. L'état de surface rugueux de la paroi inférieure 20 s'étend jusqu'au bord latéral 25 inclus. Un plan de démoulage peut ainsi être situé entre le bord supérieur 24 et le bord latéral 25.The spout 4 has no sharp edge between the upper wall 10 and the connecting surface 23 nor between the connecting surface 23 and the bottom wall 20. The spout 4 also does not have a sharp edge between the edge upper 24 of the connecting surface 23 and the lateral edge 25, or between the lateral edge 25 and the lower edge 26 of the connecting surface 23. The smooth surface state of the upper wall 10 extends to the edge upper 24 included. The rough surface condition of the bottom wall 20 extends to the side edge 25 inclusive. A demolding plane can thus be located between the upper edge 24 and the lateral edge 25.

Tel que montré à la figure 3, la longueur axiale de la paroi inférieure 20 entre le décrochement extérieur 21 et le bord inférieur 26 est de 5 mm, et la hauteur du décrochement extérieur 21 est de 1,1 mm.As shown in figure 3 , the axial length of the bottom wall 20 between the outer recess 21 and the lower edge 26 is 5 mm, and the height of the outer recess 21 is 1.1 mm.

Le rayon de courbure du bord inférieur 26 est inférieur au rayon de courbure du bord supérieur 24. Dans l'exemple illustré à la figure 3, le rayon du bord supérieur 24 est de 0,5 mm et le rayon du bord inférieur 26 est de 0,3 mm. La hauteur du bord latéral 25 est inférieure au rayon du bord inférieur 26. Dans l'exemple illustré à la figure 3, la hauteur du bord latéral 25 est de 0,1 mm.The radius of curvature of the lower edge 26 is smaller than the radius of curvature of the upper edge 24. In the example illustrated in FIG. figure 3 the radius of the upper edge 24 is 0.5 mm and the radius of the lower edge 26 is 0.3 mm. The height of the lateral edge 25 is smaller than the radius of the lower edge 26. In the example illustrated in FIG. figure 3 the height of the lateral edge 25 is 0.1 mm.

L'épaisseur de l'extrémité de versement 22 est inférieure au diamètre d'une goutte de boisson suspendue à l'extrémité de versement sous la paroi inférieure 20 lorsque ladite paroi est sensiblement horizontale. Cette disposition permet de limiter la quantité de boisson rejoignant la goutte en formation. Dans l'exemple illustré à la figure 3, l'épaisseur de l'extrémité de versement 22 du bec verseur 4 est de 1 mm. Une épaisseur plus importante peut être envisagée, sans dépasser 1,5 mm pour un bec verseur en polypropylène. Le polypropylène présente une énergie de surface plus importante que des plastiques tels que le PTFE, l'ABS ou le polyéthylène. L'extrémité de versement doit présenter une épaisseur inférieure au diamètre de la goutte suspendue. Comme le diamètre de la goutte suspendue est plus important avec le polypropylène qu'avec les autres matériaux précités, l'épaisseur de l'extrémité de versement peut ainsi être plus importante et donc moins fragile.The thickness of the pouring end 22 is smaller than the diameter of a drop of beverage suspended at the pouring end under the bottom wall 20 when said wall is substantially horizontal. This arrangement makes it possible to limit the quantity of drink joining the forming drop. In the example shown in figure 3 , the thickness of the pouring end 22 of the spout 4 is 1 mm. A larger thickness can be envisaged, without exceeding 1.5 mm for a polypropylene spout. Polypropylene has a higher surface energy than plastics such as PTFE, ABS or polyethylene. The pouring end must have a thickness less than the diameter of the suspended drop. As the diameter of the suspended drop is greater with the polypropylene than with the other aforementioned materials, the thickness of the pouring end can thus be larger and therefore less fragile.

Tel que montré aux figures 4 et 5, la base 28 du bec verseur 4 est raccordée dans une partie centrale au décrochement extérieur 21 et dans les parties latérales à une paroi sensiblement verticale 29. Tel que mieux visible à la figure 4, le décrochement extérieur 21 présente une forme allongée selon une orientation sensiblement horizontale. Toutefois, le décrochement extérieur 21 présente des extrémités 32 relevées par rapport à la partie centrale 31. L'angle par rapport à l'horizontale de la ligne de raccord du décrochement extérieur 21 à la paroi inférieure 20 est de préférence compris entre 10° et 20° et est par exemple de 15°, tel que montré à la figure 4.As shown in Figures 4 and 5 , the base 28 of the spout 4 is connected in a central part to the outer recess 21 and in the side portions to a substantially vertical wall 29. As best seen in the figure 4 , the outer recess 21 has an elongated shape in a substantially horizontal orientation. However, the outer recess 21 has ends 32 raised relative to the central portion 31. The angle relative to the horizontal of the connecting line of the outer recess 21 to the bottom wall 20 is preferably between 10 ° and 20 ° and is for example 15 °, as shown in FIG. figure 4 .

Le fonctionnement de la présente invention est le suivant.The operation of the present invention is as follows.

Lorsque l'utilisateur incline la verseuse 1 pour verser la boisson, la boisson s'écoule par le bec verseur 4. Le caractère lisse de la paroi supérieure 10 permet de faciliter l'écoulement du liquide. Selon la vitesse et le débit de l'écoulement, la boisson peut s'écouler en partie en suivant la paroi inférieure 20, du fait de l'attraction du liquide par la surface de l'extrémité du bec verseur. La longueur axiale de la paroi inférieure 20 permet alors d'éviter l'écoulement de la boisson le long de la base 28 du bec verseur. Toutefois, lorsque le versement est suffisamment franc, c'est à dire lorsque la boisson s'écoule sans à-coups importants grâce à une vitesse et un débit plus élevés, le rayon de courbure suffisamment faible du bord supérieur 24 permet au liquide d'échapper à l'attraction des parois du bec verseur. Le caractère lisse du bord supérieur 24 facilite l'écoulement de la boisson hors du bec verseur 4.When the user inclines the carafe 1 to pour the drink, the drink flows through the spout 4. The smoothness of the upper wall 10 facilitates the flow of the liquid. Depending on the speed and flow rate of the flow, the drink may flow partly following the bottom wall 20, due to the attraction of the liquid by the surface of the end of the spout. The axial length of the bottom wall 20 then prevents the flow of the drink along the base 28 of the spout. However, when the payout is sufficiently straightforward, that is to say when the drink flows without significant jolts thanks to a higher speed and a higher flow rate, the sufficiently small radius of curvature of the upper edge 24 allows the liquid to flow. escape the attraction of the walls of the spout. The smooth nature of the upper edge 24 facilitates the flow of the drink out of the spout 4.

La longueur axiale de la paroi inférieure 20 permet d'éviter que la boisson ne s'écoule le long de la paroi latérale de la verseuse.The axial length of the bottom wall 20 prevents the drink from flowing along the side wall of the carafe.

De plus, lorsque le versement est suffisamment franc, c'est à dire lorsque la boisson s'écoule sans à-coups importants, le bec verseur 4 selon l'invention permet d'éviter de casser brutalement l'écoulement du liquide lors du relèvement dudit bec verseur, grâce à l'absence d'arête vive le long de la surface de raccordement 23. De ce fait, la quantité de liquide retenue sous le bec verseur 4 est moindre.In addition, when the pouring is sufficiently straightforward, that is to say when the drink flows smoothly, the spout 4 according to the invention makes it possible to avoid breaking suddenly the flow of the liquid during the raising said spout, due to the absence of sharp edge along the connecting surface 23. As a result, the amount of liquid held under the spout 4 is less.

Lorsque la paroi supérieure 10 a atteint une position verticale dans la partie centrale 11, une goutte de boisson peut rester suspendue sur la paroi supérieure 10 en prenant appui le long du sommet 27 du bord supérieur 24. Dans ces conditions, le retour de la verseuse en position de repos permet d'éviter la chute de la goutte.When the upper wall 10 has reached a vertical position in the central portion 11, a drop of drink can remain suspended on the upper wall 10 by bearing along the top 27 of the upper edge 24. In these conditions, the return of the jug in the rest position prevents the drop from falling.

Toutefois une goutte peut également rester suspendue à l'extrémité de versement 22 après l'arrêt de l'écoulement de la boisson. La goutte suspendue prend alors appui à la fois sur le bord supérieur 24 et sur le bord inférieur 26. Dans ces conditions, la goutte glisse le long de la paroi inférieure 20 lorsque l'utilisateur relève le bec verseur 4. La rugosité de la paroi inférieure 20 freine le mouvement de la goutte.However, a drop may also remain suspended at the pouring end 22 after stopping the flow of the drink. The suspended drop then bears on both the upper edge 24 and the lower edge 26. Under these conditions, the drop slides along the bottom wall 20 when the user lifts the spout 4. The roughness of the wall lower 20 brakes the movement of the drop.

Le décrochement extérieur 21 permet de capter la goutte suspendue sous la paroi extérieure 20, qui a tendance à glisser sous ladite paroi lorsque la verseuse 1 est ramenée en position de repos illustrée à la figure 3.The external recess 21 makes it possible to capture the drop suspended under the outer wall 20, which tends to slide under the said wall when the jug 1 is brought back to the rest position illustrated in FIG. figure 3 .

De nombreuses améliorations peuvent être apportées à cette verseuse dans le cadre des revendications.Many improvements can be made to this carafe as part of the claims.

Notamment, la présence d'un bord latéral 25 n'est pas nécessaire.In particular, the presence of a lateral edge 25 is not necessary.

Le sommet 27 ne s'inscrit pas nécessairement dans un plan. La hauteur du sommet 27 du bord supérieur 24 peut notamment être plus faible dans la partie centrale de versement 11, de manière à former un col.Summit 27 does not necessarily fit into a plan. The height of the top 27 of the upper edge 24 may in particular be lower in the central portion of the pour 11, so as to form a neck.

Le bord supérieur 24 et/ou le bord inférieur 26 peuvent présenter un rayon de courbure variable.The upper edge 24 and / or the lower edge 26 may have a variable radius of curvature.

Claims (18)

  1. A pouring jug, particularly for electric coffee makers, comprising a container (2) with a base (7), said container (2) being associated with a plastic pouring spout (4) with a central pouring portion (11) comprising a pouring end (22) and lateral portions (12), the pouring spout comprising an upper wall (10) connected to a lower wall (20) by a connecting surface (23), the upper wall (10) being inclined towards the interior of the container (2), characterised in that in the central pouring portion (11) the connecting surface (23) is free from sharp edges and has an upper edge (24) with a radius of curvature ranging between 0.5 and 2 mm along a radial section of the pouring end (22), the connecting surface (23) comprising a lower edge (26) whose radius of curvature along a radial section of the pouring end (22) is lower than the radius of curvature of the upper edge (24) along a radial section of the pouring end (22), and the lower edge (26) presenting a higher surface roughness than the upper edge (24).
  2. A pouring jug according to claim 1, characterised in that the upper wall (10) has a mirror polish surface condition.
  3. A pouring jug according to any one of claims 1 or 2, characterised in that the upper edge (24) has a mirror polish surface condition.
  4. A pouring jug according to any one of claims 1 to 3, characterised in that the lower wall (20) has a higher surface roughness than the upper wall (10).
  5. A pouring jug according to any one of claims 1 to 4, characterised in that a central edge (25) is arranged between the upper edge (24) and the lower edge (26).
  6. A pouring jug according to claim 5, characterised in that the central edge (25) has a higher surface roughness than the upper edge (24).
  7. A pouring jug according to any one of claims 5 or 6, characterised in that the central edge (25) is vertical.
  8. A pouring jug according to any one of claims 5 to 7, characterised in that the upper edge (24) comprises a top (27) located within a plane.
  9. A pouring jug according to any one of claims 1 to 8, characterised in that the inclination of the upper wall (10) ranges between 25° and 45° with respect to the base (7).
  10. A pouring jug according to claim 9, characterised in that the upper wall (10) is parallel to the lower wall (20).
  11. A pouring jug according to claim 10, characterised in that the thickness of the pouring end (22) is less than 1.2 mm.
  12. A pouring jug according to any one of claims 1 to 11, characterised in that the radial length of the lower wall (20) is more than 4 mm in the axis of the pouring spout (4).
  13. A pouring jug according to any one of claims 1 to 12, characterised in that the lower wall (20) is extended by an outer recess (21) towards the base of the pouring spout (4).
  14. A pouring jug according to claim 13, characterised in that the outer recess (21) is substantially vertical.
  15. A pouring jug according to any one of claims 13 or 14, characterised in that the outer recess (21) is more than 1 mm high.
  16. A pouring jug according to any one of claims 13 to 15, characterised in that the outer recess (21) has lateral portions (32) raised in their upper zone with respect to the upper zone of a central portion (31) of said outer recess (21).
  17. A pouring jug according to claim 16, characterised in that the central portion (31) of the outer recess (21) is prominent with respect to the lateral portions (32) of the outer recess (21).
  18. A pouring jug according to any one of claims 1 to 17, characterised in that the pouring spout (4) is made of polypropylene.
EP01420132A 2000-06-26 2001-06-12 Dripless pouring spout Expired - Lifetime EP1166692B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0008187A FR2810525B1 (en) 2000-06-26 2000-06-26 POURING MACHINE COMPRISING AN ANTI-DROPPING SPOUT
FR0008187 2000-06-26

Publications (2)

Publication Number Publication Date
EP1166692A1 EP1166692A1 (en) 2002-01-02
EP1166692B1 true EP1166692B1 (en) 2010-09-22

Family

ID=8851691

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01420132A Expired - Lifetime EP1166692B1 (en) 2000-06-26 2001-06-12 Dripless pouring spout

Country Status (5)

Country Link
US (1) US6474514B1 (en)
EP (1) EP1166692B1 (en)
AT (1) ATE481901T1 (en)
DE (1) DE60143104D1 (en)
FR (1) FR2810525B1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
UA13489U (en) * 2005-06-03 2006-04-17 Yaroslav Olehovych Mahas Dish for drinking
JP5657999B2 (en) * 2010-10-29 2015-01-21 株式会社吉野工業所 Pouring cap
US9187219B2 (en) * 2013-03-06 2015-11-17 Westrock Slatersville, Llc Pour lip closure with drain back
CN112027301B (en) * 2013-09-30 2022-08-16 班奥麦迪克公司 Carafe lid and extension assembly, system and method
USD864648S1 (en) * 2017-10-31 2019-10-29 Seb Electric kettle
USD948916S1 (en) * 2020-07-03 2022-04-19 Everich And Tomic Housewares Co., Ltd Jug

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE670435C (en) * 1939-01-18 Anny Meier Drip-free spout for vessels
US2132120A (en) * 1936-06-03 1938-10-04 Scheyer Sophie Pouring or dropping vessel
CH188588A (en) * 1936-11-24 1937-01-15 Meier Anny Device to prevent dripping on vessels.
US2315250A (en) * 1939-06-20 1943-03-30 Charles A Eilers Detachable spout
US2889080A (en) * 1956-02-06 1959-06-02 Livingstone Jay Gould Teapot or the like
USD266690S (en) * 1980-12-05 1982-10-26 Misco Enterprises Inc. Stackable watering container
USD315472S (en) * 1988-10-13 1991-03-19 Luigi Lavazza S.P.A. Coffee maker or similar article
DE4037673A1 (en) * 1990-11-27 1992-06-11 Leifheit Ag Teapot pouring dripless spout - coated at mouth with frictionless poly:tetra:fluoroethylene sharp edge at highest point on spout
DE4336650C2 (en) 1993-10-27 1997-12-18 Leifheit Ag Beverage pot
DE19510411A1 (en) * 1995-03-24 1996-10-02 Heraeus Instr Gmbh Drip prevention appts. useful esp. for pouring from a container
USD375016S (en) * 1995-03-28 1996-10-29 Braun Ag Thermal coffee pot
US5549216A (en) * 1995-05-15 1996-08-27 Scholl; Robert Paint holder and delivery device
USD376065S (en) * 1995-06-22 1996-12-03 Nippon Sanso Corporation Coffee container
USD419363S (en) * 1999-01-08 2000-01-25 M. Kamenstein, Inc. Gravy boat
USD451750S1 (en) * 2000-07-11 2001-12-11 Oneida, Ltd. Coffee pot

Also Published As

Publication number Publication date
FR2810525B1 (en) 2002-09-13
FR2810525A1 (en) 2001-12-28
ATE481901T1 (en) 2010-10-15
EP1166692A1 (en) 2002-01-02
DE60143104D1 (en) 2010-11-04
US6474514B1 (en) 2002-11-05

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