EP0382146B2 - Fermeture de récipient avec valve de dégazage - Google Patents

Fermeture de récipient avec valve de dégazage Download PDF

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Publication number
EP0382146B2
EP0382146B2 EP90102244A EP90102244A EP0382146B2 EP 0382146 B2 EP0382146 B2 EP 0382146B2 EP 90102244 A EP90102244 A EP 90102244A EP 90102244 A EP90102244 A EP 90102244A EP 0382146 B2 EP0382146 B2 EP 0382146B2
Authority
EP
European Patent Office
Prior art keywords
valve seat
cap
container
film
container closure
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
EP90102244A
Other languages
German (de)
English (en)
Other versions
EP0382146B1 (fr
EP0382146A1 (fr
Inventor
Dieter Peissl
Bernd Hackmann
Jürgen Kopp
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.)
Unilever PLC
Unilever NV
Original Assignee
Unilever PLC
Unilever NV
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
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Application filed by Unilever PLC, Unilever NV filed Critical Unilever PLC
Publication of EP0382146A1 publication Critical patent/EP0382146A1/fr
Publication of EP0382146B1 publication Critical patent/EP0382146B1/fr
Application granted granted Critical
Publication of EP0382146B2 publication Critical patent/EP0382146B2/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
    • B65D51/00—Closures not otherwise provided for
    • B65D51/16—Closures not otherwise provided for with means for venting air or gas
    • B65D51/1605—Closures not otherwise provided for with means for venting air or gas whereby the interior of the container is maintained in permanent gaseous communication with the exterior
    • B65D51/1616—Closures not otherwise provided for with means for venting air or gas whereby the interior of the container is maintained in permanent gaseous communication with the exterior by means of a filter

Definitions

  • the invention relates to a container closure with an internal pressure limiter according to the preamble of claim 1.
  • Containers with an internal pressure limiter are used in various contexts, for example in plastic bottles which have a slightly gassing content, but may only be loaded with a relatively low internal pressure. If the internal pressure rises due to heating and vibrations during transport, then gas must be released.
  • An example is bottles with bleach that tends to generate gas, but the bottles should not be exposed to a significant internal overpressure.
  • a construction for pressure limitation is known for example from GB-A 2 026 994, Fig. 4, wherein the upper edge of the container neck serves as an annular valve seat, on which a rubber disc rests as a valve body, which acts against the spring force of a metal disc and the metal container cap can lift off the neck of the container so that the developed gas can pass between the edges of the neck of the container and the rubber washer and can escape through a side slot in the cap.
  • the response limit pressure depends on the screw-on width of the container closure.
  • valve body is stamp-like and engages in a funnel-shaped valve seat, and the valve closure surface is a narrow ring surface, possibly only a ring line.
  • Containers for such liquids which are part of the daily consumer goods, are generally of little valuable commodity.
  • Cap constructions with metal springs or only with metal plates that are used have to make the construction more expensive.
  • Pressure limitation with the help of the usual sealing washer, which is pushed away by the excess pressure from the neck of the container and opens a path through the thread, on the other hand can hardly be set to a precise response pressure and is only suitable for relieving higher pressures.
  • the invention has for its object to provide an extremely easy to manufacture container closure with internal pressure limiter that is responsive even at low internal pressure.
  • the sponge body provided with the film and acting as a valve spring assembly can be produced as continuous goods from which the parts required for the individual container closure are punched out.
  • the insertion of the individual sponge parts provided with the film into the snap-in container construction is very simple; the spring body on the one hand and the valve body on the other hand do not need to be installed separately.
  • the container closures can therefore be produced in inexpensive series production.
  • the entire structure is particularly suitable for limiting internal gas pressure, since the escaping gas can easily seep through the compressed sponge body, while a liquid that may also be contained in the container is largely retained.
  • the measure according to claim 6 replaces the valve opening in the normal case by a plurality of valve openings, as a result of which the passage area can be enlarged without the sponge body provided with the film 4 protruding bulging.
  • a sealing cap (3) made of plastic, which is attached to the container neck (4) with a screw or a bayonet catch (4). 1) is attached.
  • the sealing cap is connected to a guarantee ring (6) attached to the neck of the container and held there by means of webs (5) which show the original filling of the container as tearing webs.
  • the container to which the illustrated container closure belongs is a plastic bottle for holding a laundry bleach. Such agents tend to produce gas, which could cause the plastic bottle to inflate.
  • the closure cap (3) is therefore equipped with an internal pressure relief valve (11).
  • an internal pressure relief valve (11) for this purpose, there is a degassing opening (12) in the top of the cap, that is to say in its radial cover surface, which leads outwards from the cap interior.
  • the area in which the opening (12) is located - eccentrically in the example shown - is surrounded by an annular flange (13) projecting from the cap top wall to the container and onto which a cover cap (14) is attached.
  • This has an essentially cylindrical plug-in part in the form of two ring flanges (15), (16), between which the ring flange (3) can be inserted.
  • a sponge body (25) is inserted, which is laminated on its underside with a polyethylene film (26) that has a circular circumference (27).
  • the polyethylene film (26) covers the entire inner floor surface (19) and the hole (18).
  • the sponge body is shown in a relaxed state in FIG. 2, while the sectional drawing of FIG. 1 shows it compressed.
  • the sponge body is shortened to 1/5 of its original length by the compression. This considerable compression causes the film (26) to be pressed onto the surface (19) with significant force. It creates a seal there which is sufficient for moderate pressures, including the pressure which the weight of the container contents exerts in the event of the container tipping over.
  • the sponge part of the sponge body (25) consists of a material of sufficient porosity to allow the gas to be seeped out which is to be discharged from the container. The passage of liquid takes place much more slowly, and the penetration of foreign bodies and foreign materials into the space of the valve (11) is prevented by the sponge body (25).
  • Polyamide is also suitable as the material for the film (26).
  • polyether foam is preferred, with an average tube density of 72 kg / m 3 , and a pore number of 20 to 25 per cm, a compression hardness (according to ISO 3386) of 32 kPa.
  • Fig. 3 which shows only the upper part of a closure cap, relates to an embodiment in which in the disc-shaped bottom (17) of the cover cap (14) instead of the one hole (18) there are several holes (28). These holes are distributed over the inner surface (19), but all hold a minimum distance from the ring flange (16) and thus from the edge of the sponge body (25). There are several degassing openings (12) in the top wall of the cover cap (3), two such openings are visible. According to a further embodiment, not shown, the degassing openings and the holes can also each be designed as a sieve or grille.
  • Fig. 1 shows the unpressurized state
  • Fig. 3 shows the state in which an overpressure in the container just leads to the escape of gas.
  • the film (26) is first lifted away from the area (19) in the area of the holes (28), but with increasing pressure, but further above the surface (19), the circular edge of the film (26) simultaneously moving inwards from the ring flange (16) is pulled away. Finally, in bubbles or continuously, the gas passing through the holes (28) reaches this edge and gets into an annular space (30) formed between the sponge body (25) and the inner annular flange (16). From there, the gas flows through the compressed sponge body (25) to the degassing openings (12).
  • Fig. 4 shows in a partial representation corresponding to that of Fig. 3, an embodiment in which the underside of the cover (14) instead of the flat disc shape is formed by a conical bottom (32), in the top of which protrudes downwards, the hole ( 18) is located.
  • the cylindrical sponge body (25) with the polyethylene film (26) in the relaxed state according to FIG. 2 assumes a slightly "pointed" shape here, so that the surface pressure exerted by it is higher in the area of the circumference (27) than in the vicinity of the Lochs (18).
  • the film (26) gradually rises from the inside to the outside of the surface (19) until the gas reaches the edge, and when the pressure is released, it cleanly rests against the surface from the outside.
  • FIG. 5 shows a representation corresponding to FIG. 4 conical bottom 32 'which projects inwards.
  • the sponge body is in this case the strongest around the hole 18 and the least prestressed at the circumference. A gas pressure that can raise the film at the hole 18 is therefore suddenly discharged as a gas bubble passing between the film (26) and the surface (19).

Landscapes

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

Claims (8)

  1. Fermeture de récipient équipée d'un limiteur de pression intérieure, dans laquelle un capuchon de fermeture (3) présente au moins une ouverture (12) de décharge de pression à laquelle se raccorde intérieurement un élément (25) en mousse perméable au milieu contenu et qui, par sa compression et à l'encontre de la pression régnant dans le volume intérieur du récipient, presse un élément mobile de soupape contre un siège (17) de soupape, lequel est formé sur une partie (14) du capuchon de fermeture (3) pouvant être monté sur le récipient et dans lequel se trouve une ouverture (18), caractérisée en ce que l'élément mobile de soupape est composé d'une feuille flexible (26), imperméable au milieu contenu, et qui couvre une surface extérieure de l'élément (25) en mousse, sur le pourtour de la surface de paroi intérieure (20) d'une collerette cylindrique intérieure (16) d'un capuchon de fermeture (14) ou d'une surface de paroi interne de collerette cylindrique (13) périphérique faisant saillie vers l'intérieur et prend appui par sa région de surface faisant suite à sa périphérie (27) contre le siège (17) de soupape circulaire, et l'ouverture (18) est entourée de tous ôtés par une largeur de siège de soupape qui est touchée par la feuille et qui est au moins égale à la plus grande dimension transversale de l'ouverture (18); et en ce que l'espace dans lequel l'élément en mousse (25) est enfermé est formé par la paroi du capuchon de fermeture (3), par une collerette cylindrique (13) courant sur le pourtour de la paroi du capuchon faisant saillie vers l'intérieur et par un capuchon de fermeture (14) lié à la collerette cylindrique avec un sol en forme de disque (17) qui forme le siège de soupape, et qui présente l'ouverture (18, 28) de ce siège et est assemblé avec la collerette cylindrique (13) de manière à former un déclic.
  2. Fermeture de récipient selon la revendication 1, caractérisée en ce que la feuille flexible (26) est faite de polyéthylène.
  3. Fermeture de récipient selon l'une des revendications 1 ou 2, caractérisée en ce que l'élément en mousse (25) se compose de mousse synthétique poreuse qui à l'état détendu est comprimée de 1/6 à à de sa longueur en direction de la feuille.
  4. Fermeture de récipient selon la revendication 3, caractérisée en ce que la mousse synthétique poreuse est une mousse de polyéther d'une densité apparente moyenne de 72 kg/m3, d'un nombre de pores de 20 à 25 par cm et d'une dureté de refoulement (selon ISO 3386) de 32 kPa.
  5. Fermeture de récipient selon l'une des revendications 1 à 4, caractérisée en ce que l'ouverture (18) prévue dans le siège de soupape (17) est entourée de tous côtés par une largeur de siège de soupape touchée par la feuille qui est égale à 1,5 fois la dimension maximale transversale de l'ouverture (18).
  6. Fermeture de récipient selon l'une des revendications 1 à 5, caractérisée en ce que le siège de soupape comprend une plaque en forme de grille, qui présente plusieurs ouvertures (28) recouvertes par la feuille.
  7. Fermeture de récipient selon l'une des revendications 1 à 6, caractérisée en ce que le siège de soupape (17) est plat.
  8. Fermeture de récipient selon l'une des revendications 1 à 6, caractérisé en ce que le siège de soupape (32, 32') est de forme conique.
EP90102244A 1989-02-06 1990-02-05 Fermeture de récipient avec valve de dégazage Expired - Lifetime EP0382146B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3903509 1989-02-06
DE3903509A DE3903509A1 (de) 1989-02-06 1989-02-06 Behaelterverschluss mit innendruckbegrenzer

Publications (3)

Publication Number Publication Date
EP0382146A1 EP0382146A1 (fr) 1990-08-16
EP0382146B1 EP0382146B1 (fr) 1993-06-09
EP0382146B2 true EP0382146B2 (fr) 1996-11-13

Family

ID=6373528

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90102244A Expired - Lifetime EP0382146B2 (fr) 1989-02-06 1990-02-05 Fermeture de récipient avec valve de dégazage

Country Status (7)

Country Link
EP (1) EP0382146B2 (fr)
JP (1) JP2742315B2 (fr)
AU (1) AU630149B2 (fr)
BR (1) BR9000501A (fr)
DE (2) DE3903509A1 (fr)
ES (1) ES2042091T5 (fr)
ZA (1) ZA90867B (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0519168B1 (fr) * 1991-06-17 1995-06-07 Eric Dr.Jur. Frohn Soupape de dégazage pour un récipient destiné au transport de liquides dangereux
DE9107432U1 (de) * 1991-06-17 1991-08-22 Frohn, Eric, 8000 München Entgasungsventil
EP0669263B1 (fr) * 1994-02-22 1998-10-14 Sotralentz S.A. Récipient avec un dispositif de ventilation pour substances fluides
ES2156148T3 (es) * 1994-10-13 2001-06-16 Procter & Gamble Proceso para fabricar una tapa de ventilacion, y tapa de ventilacion obtenida de este modo.
GR2002256Y (en) * 1998-06-25 2000-07-04 Argo Aeve Liquid-impermeable and air-permeable caps
DE29820270U1 (de) * 1998-11-12 1999-01-14 Dr. Ing. W. Frohn GmbH, 81545 München Ent- und Begasungsventil
CN101402408B (zh) * 2008-11-06 2010-06-02 常熟市亚德实业有限公司 闭口堆码塑料容器的安全透气盖
FR2951919B1 (fr) * 2009-11-02 2011-12-30 Oreal Dispositif de conditionnement d'un produit cosmetique, avec systeme de relargage de gaz
EP2354032A1 (fr) * 2010-01-29 2011-08-10 Goglio S.p.A. Clapet d'aération unidirectionnel biodégradable pour récipient hermétique
CN106428886B (zh) * 2015-08-13 2018-04-06 天津市正阳彩印有限公司 一种通风防尘的瓦楞纸板包装箱

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB641201A (en) * 1940-04-25 1950-08-09 Pennsylvania Salt Mfg Co Improvements in or relating to vented containers
US2626073A (en) * 1948-06-30 1953-01-20 Armstrong Cork Co Venting closure and liner therefor
US3319836A (en) * 1966-03-14 1967-05-16 Colgate Palmolive Co Spill-proof bottle closure
JPS5549316Y2 (fr) * 1975-05-12 1980-11-17
US4122943A (en) * 1976-10-21 1978-10-31 Jules Silver Valved two compartment dispensing container
US4089434A (en) * 1976-12-10 1978-05-16 Seling Sealing Products, Inc. Venting liner
DE2834186C2 (de) * 1978-08-04 1980-04-24 Bodenseewerk Perkin-Elmer & Co Gmbh, 7770 Ueberlingen Verschluß fur Probenflaschen
DE8534913U1 (de) * 1985-12-12 1986-02-06 Kessel, Bernhard, 8071 Lenting Schließglied für einen mit Innendruck beaufschlagten Behälter
JPS62125751U (fr) * 1986-02-01 1987-08-10
FR2605293B1 (fr) * 1986-10-15 1990-01-26 Astra Plastique Bouchon equipe d'une valve de degazage

Also Published As

Publication number Publication date
ES2042091T3 (es) 1993-12-01
AU630149B2 (en) 1992-10-22
DE59001635D1 (de) 1993-07-15
EP0382146B1 (fr) 1993-06-09
DE3903509A1 (de) 1990-08-09
EP0382146A1 (fr) 1990-08-16
JP2742315B2 (ja) 1998-04-22
AU4900590A (en) 1990-08-09
JPH02269666A (ja) 1990-11-05
ZA90867B (en) 1991-10-30
DE3903509C2 (fr) 1991-01-31
BR9000501A (pt) 1991-01-15
ES2042091T5 (es) 1997-02-01

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