EP0024310B1 - Récipient d'emballage à valve de surpression - Google Patents

Récipient d'emballage à valve de surpression Download PDF

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Publication number
EP0024310B1
EP0024310B1 EP80104317A EP80104317A EP0024310B1 EP 0024310 B1 EP0024310 B1 EP 0024310B1 EP 80104317 A EP80104317 A EP 80104317A EP 80104317 A EP80104317 A EP 80104317A EP 0024310 B1 EP0024310 B1 EP 0024310B1
Authority
EP
European Patent Office
Prior art keywords
packaging container
relief valve
escape opening
pressure relief
slot
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
Application number
EP80104317A
Other languages
German (de)
English (en)
Other versions
EP0024310A1 (fr
Inventor
Helmut Weigold
Hans Klappenecker
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to AT80104317T priority Critical patent/ATE3524T1/de
Publication of EP0024310A1 publication Critical patent/EP0024310A1/fr
Application granted granted Critical
Publication of EP0024310B1 publication Critical patent/EP0024310B1/fr
Expired 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
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
    • B65D81/20—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas
    • 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
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/22—Details
    • B65D77/225—Pressure relief-valves incorporated in a container wall, e.g. valves comprising at least one elastic element

Definitions

  • the invention relates to a packaging container according to the preamble of the main claim.
  • packaging containers for holding goods for example coffee
  • these containers have in their walls a passage opening which is closed by a pressure relief valve which on the one hand prevents the entry of air into the interior of the container and on the other hand opens at a certain excess pressure in the interior of the container so that Gas can flow out.
  • the passage opening has a relatively large width, through which filler particles carried along with the outflowing gas can get into the valve. Particles stuck in the valve can impair its tightness in such a way that atmospheric oxygen can penetrate into the container and damage the goods there by oxidation.
  • the valve consists of a rubber-like elastic plate into which a straight slot is cut. If there is excess pressure in the container, the plate bulges out, the slot opening as a valve opening.
  • the passage in the container according to DE-A-2 537 317 is designed in the form of several holes with a small cross-section or covered with a piece of filter paper.
  • the production of pore-like holes with a width of 0.05 mm in the container wall, as required, for example, for ground coffee, is hardly possible with simple means when producing the packaging containers.
  • the fine needles required for this will soon become blunt or break when processing the customary flexible packaging materials made of paper, plastic or metal foil.
  • the penetrating knife bends the cut edges, the elastic recovery limit of the packaging material being exceeded, so that the cut edges do not spring back as with rubber, but remain bent over leaving a relatively wide gap.
  • the invention has for its object to design the gas passage opening closed by a pressure relief valve on a packaging container made of flexible packaging material so that it acts as a filter for filling material particles and can be produced with simple means.
  • the passage opening has the shape of a narrow, non-linear slot.
  • the packaging container according to the invention has the advantage that the slot can be cut with a simple, bevelled, for example cylindrical punch on its end face, the diameter of which is substantially larger than the width of the slot. It has an advantageous effect that the stamp cuts a kind of flap as it penetrates the packaging material sheet, which flap is bent out of the plane of the packaging material from the face of the stamp and which can spring back or be bent back into the plane of the packaging material sheet when the stamp is withdrawn.
  • the slot produced in this way has a width which is less than 0.05 mm, the length of the slot ensuring a sufficiently large passage cross section for escaping gas, so that the flow velocity of the gas stream passing through is low and the filtering effect is still very high.
  • the measures listed in the subclaims enable advantageous developments and improvements of the packaging container specified in the main claim.
  • the formation of the slot as a semicircular arc is particularly advantageous, since the resilience of the cutting area is greatest in this shape.
  • FIG. 1 shows a bag pack in a diagrammatic representation
  • FIG. 2 shows part of the wall of the bag pack with a pressure relief valve in cross section in the plane 11-11 of FIG. 1 on an enlarged scale.
  • a bag 1 made of a flexible packaging material contains a gas-releasing material, for example ground coffee.
  • a gas-releasing material for example ground coffee.
  • the pressure relief valve 5 consists of a rigid base plate 6 with a perforation 7 in register with the opening 3 in the wall 2 and of a flexible Membrane 8, which valve channels 9 is partially glued to the base plate 6.
  • the opening 3 in the wall 2 of the bag 1 has the shape of an arcuate slot 10, the gap width of which is less than 0.05 mm.
  • the slot 10 preferably has the shape of a semicircle with a radius of 1 to 2 mm.
  • the slot 10 is cut into the wall 2 of the bag with a cylindrical stamp with a beveled face.
  • the semicircular region bent out of the plane of the wall 2 springs back into the original position due to the restoring force of the packaging material, or is pressed back into the plane of the wall 2 by pressing means.
  • the slot 10 can be cut into the packaging material before a container is formed therefrom, but it can also be attached to the container before it is filled.
  • the pressure relief valve 5 is glued to the outside of the bag 1 in register with the slot 10 after cutting the slot.
  • the slot is in the form of an arc of a circle which delimits a flap which, due to its continuous connection to the container wall, springs back into the plane of the wall after being cut free, so that the slot is very narrow. This is also achieved with, for example, an angular or undulating or, generally speaking, with a non-straight slot.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
  • Bag Frames (AREA)
  • Closures For Containers (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Claims (5)

1. Emballage en matériau flexible, comportant sur sa paroi (2) un orifice de passage (3) et une soupape de surpression (5), fixée sur la paroi, dans l'alignement de l'orifice de passage qu'elle obture, ledit emballage étant caractérisé en ce que l'orifice de passage (3) présente la forme d'une étroite fente (10) non linéaire.
2. Emballage selon revendication 1, caractérisé en ce que la fente (10) est cintrée.
3. Emballage selon revendication 2, caractérisé en ce que la fente (10) présente la forme d'un arc de demi-cercle.
4. Emballage selon revendication 1, caractérisé en ce que la fente (10) est coudée.
5. Emballage selon une quelconque des revendications 1 à 4, caractérisé en ce que la largeur de la fente (10) est inférieure à 0,05 mm.
EP80104317A 1979-08-16 1980-07-23 Récipient d'emballage à valve de surpression Expired EP0024310B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80104317T ATE3524T1 (de) 1979-08-16 1980-07-23 Verpackungsbehaelter mit ueberdruckventil.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2933151 1979-08-16
DE19792933151 DE2933151A1 (de) 1979-08-16 1979-08-16 Verpackungsbehaelter mit ueberdruckventil

Publications (2)

Publication Number Publication Date
EP0024310A1 EP0024310A1 (fr) 1981-03-04
EP0024310B1 true EP0024310B1 (fr) 1983-05-25

Family

ID=6078577

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80104317A Expired EP0024310B1 (fr) 1979-08-16 1980-07-23 Récipient d'emballage à valve de surpression

Country Status (4)

Country Link
EP (1) EP0024310B1 (fr)
JP (1) JPS6055376B2 (fr)
AT (1) ATE3524T1 (fr)
DE (2) DE2933151A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012200717A1 (de) * 2012-01-19 2013-07-25 Robert Bosch Gmbh Verschluss für einen Verpackungsbehälter
US11352183B2 (en) 2020-03-05 2022-06-07 Plitek, L.L.C. Pressure relief valve with wetting fluid reservoirs

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6057069A (ja) * 1983-09-05 1985-04-02 Fujimori Kogyo Kk ガス抜き用弁
JPS613216U (ja) * 1984-06-11 1986-01-10 四国化工機株式会社 発酸性液体包装用容器
DE3526586A1 (de) * 1985-07-25 1987-02-05 Bosch Gmbh Robert Verpackungsbehaelter mit rberdruckventil
JPS62198338A (ja) * 1986-02-26 1987-09-02 保土谷化学工業株式会社 樹病防除用薬液の松樹体への注入方法および注入装置
JPS6370916U (fr) * 1986-10-27 1988-05-12
FR2649957B1 (fr) * 1989-07-18 1991-11-15 Cafes Sa Cie Mediterraneenne Conditionnement pour grains de cafe se fixant directement sur le moulin a cafe et comportant un embout raccord doseur
US5059036A (en) * 1990-04-27 1991-10-22 Kapak Corporation Vented pouch arrangement and method
US5254073A (en) * 1990-04-27 1993-10-19 Kapak Corporation Method of making a vented pouch
DE4129838A1 (de) * 1991-02-16 1992-08-20 Bosch Gmbh Robert Ueberdruckventil fuer verpackungsbehaelter
JP2536036Y2 (ja) * 1991-09-20 1997-05-21 日本エンビロ・システムズ株式会社 密閉包装袋
US5407087A (en) * 1992-12-30 1995-04-18 Lever Brothers Company, Division Of Conopco, Inc. Venting closure
DE9417621U1 (de) 1994-11-03 1996-03-07 Bosch Gmbh Robert Verpackungsbeutel mit Überdruckventil
EP0729901B1 (fr) * 1995-03-23 2000-07-12 The Procter & Gamble Company Emballage ou fermeture muni d'un système de mise à l'air avec moyens de drainage
EP0752376B1 (fr) * 1995-07-05 2000-10-18 The Procter & Gamble Company Récipient ou capuchon avec évent
US5709479A (en) * 1996-09-06 1998-01-20 Kapak Corp. Bag construction for distributing material
US5971613A (en) 1997-04-11 1999-10-26 Kapak Corp. Bag constructions having inwardly directed side seal portions
US6375037B1 (en) 2000-10-10 2002-04-23 Kapak Corporation Bag construction for distributing material
EP1630769B1 (fr) * 2004-08-23 2008-10-15 Schreiner Group GmbH & Co. KG Etiquette pour couvrir des ouvertures d'échange de gaz
AR046175A1 (es) 2004-10-07 2005-11-30 Celomat S A Una valvula unidireccional liberadora de presion aplicable a un envase que contiene un producto que emite gases, en la que coexisten un medio fluido y una burbuja de aire, y un envase que incluye a dicha valvula
US9187229B2 (en) 2011-08-31 2015-11-17 Plitek, L.L.C. Oil-less pressure relief valves
US8636034B2 (en) 2011-08-31 2014-01-28 Plitek, L.L.C. Oil-less and wetted pressure relief valves having an integrated filter
US8783292B2 (en) 2011-08-31 2014-07-22 Plitek, L.L.C. Oil-less pressure relief valves
US10358275B1 (en) 2017-06-16 2019-07-23 Plitek, L.L.C. Pressure relief valve with a plural-part dry strap
CN114864988A (zh) * 2022-03-16 2022-08-05 四川华能氢能科技有限公司 一种带有防爆结构的复合氢燃料电池

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3716180A (en) * 1970-06-01 1973-02-13 Robalex Inc Packaging
DE2454248A1 (de) * 1974-11-15 1976-05-20 Hesser Ag Maschf An einem verpackungsbehaeltnis angebrachtes druckbegrenzungsventil
DE2537317A1 (de) * 1975-08-21 1977-02-24 Hesser Ag Maschf Druckausgleichventil fuer einen verpackungsbehaelter

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012200717A1 (de) * 2012-01-19 2013-07-25 Robert Bosch Gmbh Verschluss für einen Verpackungsbehälter
DE102012200717B4 (de) 2012-01-19 2021-09-23 Syntegon Technology Gmbh Verschluss für einen Verpackungsbehälter
US11352183B2 (en) 2020-03-05 2022-06-07 Plitek, L.L.C. Pressure relief valve with wetting fluid reservoirs

Also Published As

Publication number Publication date
DE2933151A1 (de) 1981-02-26
JPS6055376B2 (ja) 1985-12-04
DE3063476D1 (en) 1983-07-07
ATE3524T1 (de) 1983-06-15
EP0024310A1 (fr) 1981-03-04
JPS5632239A (en) 1981-04-01

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