EP1188679B1 - Fermeture automatique pour récipient élastique déformable - Google Patents

Fermeture automatique pour récipient élastique déformable Download PDF

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Publication number
EP1188679B1
EP1188679B1 EP01116423A EP01116423A EP1188679B1 EP 1188679 B1 EP1188679 B1 EP 1188679B1 EP 01116423 A EP01116423 A EP 01116423A EP 01116423 A EP01116423 A EP 01116423A EP 1188679 B1 EP1188679 B1 EP 1188679B1
Authority
EP
European Patent Office
Prior art keywords
wall
annular
chamber
housing
annular 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
EP01116423A
Other languages
German (de)
English (en)
Other versions
EP1188679A3 (fr
EP1188679A2 (fr
Inventor
Günter Auer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aptar Villingen GmbH
Original Assignee
Megaplast GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Megaplast GmbH filed Critical Megaplast GmbH
Publication of EP1188679A2 publication Critical patent/EP1188679A2/fr
Publication of EP1188679A3 publication Critical patent/EP1188679A3/fr
Application granted granted Critical
Publication of EP1188679B1 publication Critical patent/EP1188679B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B65D35/00—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor
    • B65D35/14—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor with linings or inserts
    • B65D35/20—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor with linings or inserts for retracting contents
    • 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
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/20—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge
    • B65D47/2018—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure
    • B65D47/2056—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure lift valve type
    • B65D47/2062—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure lift valve type in which the deformation raises or lowers the valve stem
    • B65D47/2068—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure lift valve type in which the deformation raises or lowers the valve stem in which the stem is lowered by the pressure of the contents and thereby opening the valve

Definitions

  • the invention relates to an automatic closure for elastically deformable, tube-like or bottle-like, a dispenser necked container of paste-like or liquid media having a discharge opening in an end wall of a hood cover and arranged by a movable in the axial direction of the discharge opening, plug-like Closing member is closed from the inside, wherein the hood lid can be placed on a dispenser neck Housing is arranged and wherein the closing member Part of an elastic membrane wall of a total made of elastic material hood-like Hollow body is that with an at least approximately cylindrical Wall section an inner ring wall one through a bottom enclosed chamber enclosing inside a medium flowed through the cavity of the housing arranged and by at least one ventilation duct with the environment is connected, which in a radial walkway is arranged, which the inner ring wall with the housing combines.
  • the output of the medium thereby becomes causes pressure on the side walls of the Container inside the container an overpressure is generated, which also affects the membrane wall and causes it the closing member of the discharge opening of the hood cover to remove, so that the medium through this Issue opening can escape.
  • an overpressure is generated, which also affects the membrane wall and causes it the closing member of the discharge opening of the hood cover to remove, so that the medium through this Issue opening can escape.
  • the container wall it may be necessary with the medium filled interior of the container or the Additionally ventilate the closure after a dispensing operation, thus the container or its depressed side walls quickly return to its original shape can or can.
  • This one-way valve consists of a separate axially movable closing element and one in the bottom arranged the chamber formed by the inner annular wall Passage opening.
  • the closing member has a annular closing surface which sealingly on a mating surface the passage opening of the bottom rests when exerted a corresponding pressure on the closing member which, for example, when 'forming the container during an output process.
  • This axially movable closing member is by finger-like Holder guided and limited in its axial movement. It consists of a dimensionally stable, so non-elastic material and can only be moved as a whole become. It is always completely out of the issue Medium enclosed. At certain viscosities of the medium can question its reliability be. If only small amounts of the medium at End or at the beginning of a dispensing operation on the valve seat surface or about this in the interior of the chamber arrive, this can have the consequence that the functionality the entire lock is lost.
  • the invention is based on the object, a closure of the type mentioned above, in which the at weak restoring forces of the elastic container walls required suction ventilation of the container by a simple both in terms of manufacture and assembly inexpensive valve assembly is achieved, the at the same time ensures that the medium in the container or in the case of the closure under any circumstances in the Chamber or enter a ventilation duct.
  • the inner ring wall surrounded by a second annular wall is that forms an annular groove with the inner annular wall, in that the annular groove has at least one axial ventilation opening having the ventilation duct with the of the second annular wall enclosing cavity connects, and that the cylindrical wall portion of the hood-like Hollow body is provided with an elastic lip, which the ventilation opening with the function of a one-way valve separates from the cavity.
  • the invention is an automatic closure of created generic type, which also provides ventilation the container interior or the closure body interior allows, however, the one-way valve on the one hand no additional component required and no caused additional installation costs and in which the Guaranteed functional reliability to a much greater extent is as in the known one-way valve, because the elastic lip only partially and minimally of their counter surface lifts off, if really atmospheric Air through the closed by the lip opening in the Interior flows.
  • Advantageous embodiments of the invention are the subject of claims 2 to 8.
  • the automatic closure 1 is elastically deformable, Tubular or bottle-like containers (not shown) of pasty or liquid media, the one indicated only in phantom lines issue neck 2 have.
  • a discharge opening 5 arranged on the inside the end wall 3 has a conical collar 6.
  • This discharge port 5 is through in the direction of the axis 7 of the discharge opening 5 axially movable, elastic, plug-like closure member 8 closed.
  • This as hollow nipple trained closing member 8 is one piece Part of an elastic radial membrane wall 9 a total of elastic material hood-like Hollow body 10.
  • This hollow body 10 has a integrally formed on the membrane wall 9 cylindrical Wall section 11 on (Fig. 7), which mounted in the Condition a dimensionally stable inner cylindrical annular wall 12th sealingly encloses.
  • This inner ring wall 12 is with a closed bottom 13 and forms the radial Boundary of a chamber 15, the upper limit of the Membrane wall 9 forms with the closing member 8.
  • This inner annular wall 12 is of a second annular wall 16 surrounded, with the inner ring wall 12 an annular groove 17 forms and the axially almost to the end wall 3 of the Hood cover 4 comes up.
  • the second annular wall 16 is over a total of four radial webs 18, 19, 20 and 21 in integral connection with an outer cylindrical annular wall 22 of a total hollow cylindrical housing 23, the lower part 24 as Threaded sleeve formed with an internal thread 25 and thus for screwing onto a dispensing neck 2 of a bottle or tube-like container is suitable.
  • Screw thread other fasteners, such as e.g. Provide snap devices or locking devices.
  • the radial webs 18, 19, 20 and 21 are above the internal thread 25 arranged approximately halfway up the housing 23.
  • something wider and higher than the radial webs 18 and 19 are located
  • Ventilation channels 28 and 29 which the chamber 15 connect with the atmosphere.
  • Ventilation channels 28 and 29 through axial ventilation openings 30 and 31 with the annular groove 17 in conjunction.
  • the cylindrical wall portion 11 of the closing member also 8 and the membrane wall 9 integrally comprising hollow body 10 either with two diametrically opposite ones tongue-like lips 32 and 33 shown in FIG. 19 or with a ring lip 34 of FIG. 17 and 18th provided flat on the bottom surface 36 (Fig. 4) of Rest ring groove 17.
  • annular wall 11 of the hollow body 10 at its lower edge with a truncated cone radially projecting annular lip 35 provided.
  • This annular lip 35 is not on the plane flat bottom surface 36 of the annular groove 17. Instead it lies with its outer edge 37 elastic sealing on the inner surface of the second annular wall 16 to on this way the function of a one-way vent valve In case of overpressure, this will give access to the ventilation openings 30 and 31 includes and at negative pressure Afterflow of atmospheric air from the ventilation channels 28 and 29 in the hollow body 10 surrounding Cavity 27 allows.
  • lips 32 and 33 and the ring lip 34 In the same way in principle also work the lips 32 and 33 and the ring lip 34. The only difference is that these Lips 32 and 33 and the annular lip 34 their closing function by even resting on the flat floor surface exert the annular groove 17.
  • the hood cover 4 on the inside of its end wall 3 a the inner surface of the annular wall 22 of the housing 23 sealing adjacent sealing ring 40, which also has the shape a conical lip has.
  • the annular wall 16 of the housing 23 is of an annular Closing wall 42 of the hood cover 4 enclosed.
  • both the annular wall 16 of the housing 23 as also the closure wall 42 of the hood cover 4 sector-like Breakthroughs 45 and 46 or 47 and 48, by corresponding rotational movements of the hood cover 4 to the common axis 7 on the housing 23 with each other in Overlapping can be brought to either of the annular wall 16 enclosed cavity 27 of the between the annular wall 22 of the housing 23 and the closure wall 42 lying annular chamber 44 to separate or with this connect to.
  • the hood cover 4 is concentric for this purpose Arrangement for the two concentric ring walls 11 and 16 to those with the axis 7 of the discharge opening 5 coincident housing axis rotatably mounted on the housing 23 stored.
  • the angle ⁇ of the hood cover 4 is by accordingly arranged rotational limiters 50 and 51 (FIGS. 1, 3, 4 and 5) limited to a dimension that is greater than the opening angle ⁇ (Fig. 3 and 5) of the two openings 47 and 48 of the Ring wall 16, where it can be assumed that the Breakthroughs 45 and 46 of the closure wall 42 at least approximately have the same opening angle.
  • the opening angle ⁇ is about 50 ° and the maximum rotation angle ⁇ about 90 °.
  • the Drehbegrenzer 50 and 51 consist of inwardly projecting Stop ribs, which in sector-like annular grooves 52 and 53 of the annular wall 22 of the housing 23 engage. These annular grooves each extend over the center angle ⁇ , the rotational movement of the hood cover 4 the housing 23 allowed by about 90 °.
  • a cylindrical coupling wall 56 As best seen in FIGS. 1 and 3 and 7 and 8 is the turn restrictors 50 and 51 on the inside arranged a cylindrical coupling wall 56, the one-piece on the inside of the end wall 3 of the hood cover 4 concentric with the common axis 7 formed is.
  • This coupling wall 56 is at its lower Edge with a radially inner ring-like Rastnokken 49 provided which in the embodiment of FIG. 1 to 3 circumferentially closed in itself and a radial projecting annular collar 57 of the housing 23 engages under latching.
  • annular collar 57th can also the coupling wall 56 shown in FIGS. 7 to 12 provided with slot-shaped recesses 54 and / or 55 be.
  • the annular collar 57 can in this case circulating in to be closed.
  • the annular outer wall 60 of the hood cover 4 can be slightly conical or cylindrical. How out Figs. 1 and 7 it can be seen, has the end wall. 3 the hood cover 4 a concave shape.
  • FIGS. 2 and 9 the rotational position of Hood cover 4 shown, in which the breakthroughs 45 and 46 of the closure wall 42 with the openings 47th and 48 of the annular wall 16 are in overlap, so that the Cavity 27 communicates with the annular chamber 44 and the medium from the container, not shown by the Output neck 2 and between the radial webs 18 to 21 lying ring sector-like passage openings 38 in the Ring chamber 44 and from there into the cavity 27 pass can. From the cavity 27, then the medium, if a appropriate overpressure is built, which is the Closing member 8 in downward movement from the discharge opening 5 moved out, exit through the discharge opening 5.
  • vents are 30 and 31 of the annular groove 17 either by the lips 32 and 33 and the annular lip 34 closed or in the embodiment of Figs. 1 to 11 by the Ring lip 35 separated from the cavity 27.

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

Claims (8)

  1. Fermeture automatique pour récipient élastique déformable, de type tube ou bouteille, pourvu d'un goulot et destiné à contenir des substances pâteuses ou liquides, comprenant une ouverture de distribution (5) disposée dans la paroi avant (3) d'un bouchon protecteur (4) et pouvant être fermée de l'intérieur au moyen d'un mécanisme de fermeture (8) de type bouchon, déplaçable dans le sens axial de l'ouverture de distribution, le bouchon protecteur (4) étant disposé sur un corps positionnable sur le goulot (2) et le mécanisme de fermeture (8) faisant partie intégrante d'une paroi à membrane élastique (9) d'un corps creux (10) de type capuchon, généralement constitué d'un matériau élastique, qui forme, avec un segment de paroi au moins approximativement cylindrique (11), une paroi circulaire intérieure (12) d'une chambre (15) fermée par un fond (13), disposée à l'intérieur d'un espace vide du corps traversé par la substance et en relation avec l'extérieur par au moins un canal d'aération, lequel est aménagé dans un segment radial reliant la paroi circulaire intérieure (12) au corps, caractérisée en ce que la paroi circulaire intérieure est entourée d'une deuxième paroi circulaire, qui forme avec la paroi circulaire intérieure (12) une rainure circulaire (17), en ce que la rainure circulaire (17) comporte au moins une ouverture d'aération axiale (30, 31) qui relie le canal d'aération (28, 29) à l'espace vide (27) formé par la deuxième paroi circulaire (16), et en ce que le segment de paroi cylindrique (11) du corps creux de type capuchon (10) est pourvu d'une lèvre élastique (32, 33, 34, 35) qui sépare l'ouverture d'aération (30, 31) de l'espace vide (27) en fonctionnant à la façon d'une soupape à une voie.
  2. Fermeture selon la revendication 1, caractérisée en ce que la lèvre est conçue sous la forme d'une lèvre circulaire périphérique (34), qui, tant en position de repos qu'en situation de pression excessive, repose de façon étanchéifiante sur le pourtour d'une surface de fond (36) de la rainure circulaire (17) et qui, en cas de pression négative dans l'espace vide (27), laisse de l'air pénétrer dans l'espace vide (27).
  3. Fermeture selon la revendication 1, caractérisée en ce que la lèvre est conçue sous la forme d'une lèvre circulaire (35) de géométrie tronconique, faisant saillie radialement vers l'extérieur, et qui, tant en position de repos qu'en situation de pression excessive dans l'espace vide (27) repose de façon étanchéifiante sur le pourtour de la deuxième paroi circulaire (16) et qui, en situation de pression négative dans l'espace vide (27), laisse de l'air pénétrer dans l'espace vide (27).
  4. Fermeture selon la revendication 2 ou 3, caractérisée en ce que la deuxième paroi circulaire (16) comporte des ajours radiaux radialement à l'extérieur de la lèvre circulaire (34, 35), qui mettent en communication l'espace vide (27) qu'elle forme et une chambre circulaire (42) entourant la deuxième paroi circulaire (16), qui de son côté est reliée à l'espace intérieur d'une tubulure de raccordement (24) positionnable sur le goulot (2) du récipient ou qui, à l'état monté, est reliée au goulot (2) du récipient.
  5. Fermeture selon la revendication 4, caractérisée en ce que le bouchon protecteur (4) est disposé sur le corps (23) concentriquement aux deux parois circulaires réciproquement concentriques (11, 16, 20) de façon à tourner autour de l'axe commun (7), et en ce qu'il comporte une paroi de fermeture circulaire, qui entoure de façon étanchéifiante la deuxième paroi circulaire (16) et qui présente des ajours (45, 46) qui, par rotation du bouchon protecteur (4) peuvent être amenés à recouvrir les ajours (47, 48) de la deuxième paroi circulaire, de façon, au choix, à relier la chambre circulaire (44) à l'espace vide (27) à l'intérieur de la deuxième paroi circulaire (16), ou à l'en séparer.
  6. Fermeture selon la revendication 5, caractérisée en ce que l'angle de rotation du bouchon protecteur (4) est limité à une valeur (β) par des limiteurs de rotation (50, 51) disposés de façon appropriée, la valeur (β) étant supérieure à l'angle d'ouverture (α) de l'ajour (47, 48) le plus large dans le sens de la circonférence de la deuxième paroi circulaire (16).
  7. Fermeture selon la revendication 5, caractérisée en ce que le bouchon protecteur (4) est pourvu d'une bague d'étanchéité (40) posée de façon étanchéifiante contre la surface intérieure d'une paroi de corps cylindrique (22) du corps (23).
  8. Fermeture selon la revendication 6 ou 7, caractérisée en ce que le bouchon protecteur (4) est fixé au corps (23) au moyen d'une paroi d'accouplement cylindrique (56) ou au moyen d'éléments d'accouplement de paroi de type secteur circulaire comportant des ergots d'emboítement (49) disposés radialement à l'intérieur et s'engageant par en-dessous avec ceux-ci dans un collet circulaire (57) du corps (23) faisant saillie radialement.
EP01116423A 2000-08-02 2001-07-06 Fermeture automatique pour récipient élastique déformable Expired - Lifetime EP1188679B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20013287U 2000-08-02
DE20013287U DE20013287U1 (de) 2000-08-02 2000-08-02 Selbsttätiger Verschluß für elastisch verformbare Behälter

Publications (3)

Publication Number Publication Date
EP1188679A2 EP1188679A2 (fr) 2002-03-20
EP1188679A3 EP1188679A3 (fr) 2003-07-02
EP1188679B1 true EP1188679B1 (fr) 2004-12-22

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EP01116423A Expired - Lifetime EP1188679B1 (fr) 2000-08-02 2001-07-06 Fermeture automatique pour récipient élastique déformable

Country Status (11)

Country Link
US (1) US6386404B1 (fr)
EP (1) EP1188679B1 (fr)
JP (1) JP4588939B2 (fr)
CN (1) CN1197742C (fr)
AR (1) AR034133A1 (fr)
BR (1) BR0103165B1 (fr)
DE (2) DE20013287U1 (fr)
ES (1) ES2230216T3 (fr)
HK (1) HK1045289A1 (fr)
MX (1) MXPA01007691A (fr)
TW (1) TW568869B (fr)

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Also Published As

Publication number Publication date
DE50104867D1 (de) 2005-01-27
EP1188679A3 (fr) 2003-07-02
HK1045289A1 (en) 2002-11-22
JP4588939B2 (ja) 2010-12-01
US6386404B1 (en) 2002-05-14
BR0103165A (pt) 2002-04-02
CN1336313A (zh) 2002-02-20
CN1197742C (zh) 2005-04-20
MXPA01007691A (es) 2004-08-11
TW568869B (en) 2004-01-01
ES2230216T3 (es) 2005-05-01
US20020030069A1 (en) 2002-03-14
JP2002053153A (ja) 2002-02-19
DE20013287U1 (de) 2001-01-11
EP1188679A2 (fr) 2002-03-20
AR034133A1 (es) 2004-02-04
BR0103165B1 (pt) 2011-11-16

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