EP3144245A1 - Capuchon de fermeture - Google Patents

Capuchon de fermeture Download PDF

Info

Publication number
EP3144245A1
EP3144245A1 EP15185367.8A EP15185367A EP3144245A1 EP 3144245 A1 EP3144245 A1 EP 3144245A1 EP 15185367 A EP15185367 A EP 15185367A EP 3144245 A1 EP3144245 A1 EP 3144245A1
Authority
EP
European Patent Office
Prior art keywords
membrane
cover part
closure cap
container
cap according
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.)
Withdrawn
Application number
EP15185367.8A
Other languages
German (de)
English (en)
Inventor
Heinz Klausriegler
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.)
MOULD AND MATIC SOLUTIONS GmbH
Original Assignee
MOULD AND MATIC SOLUTIONS 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 MOULD AND MATIC SOLUTIONS GmbH filed Critical MOULD AND MATIC SOLUTIONS GmbH
Priority to EP15185367.8A priority Critical patent/EP3144245A1/fr
Publication of EP3144245A1 publication Critical patent/EP3144245A1/fr
Withdrawn legal-status Critical Current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
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
    • B65D41/04—Threaded or like caps or cap-like covers secured by rotation
    • B65D41/0435—Threaded or like caps or cap-like covers secured by rotation with separate sealing elements
    • 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
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
    • B65D41/04—Threaded or like caps or cap-like covers secured by rotation
    • B65D41/0471—Threaded or like caps or cap-like covers secured by rotation with means for positioning the cap on the container, or for limiting the movement of the cap, or for preventing accidental loosening of the cap
    • 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
    • B65D79/00—Kinds or details of packages, not otherwise provided for
    • B65D79/005—Packages having deformable parts for indicating or neutralizing internal pressure-variations by other means than venting
    • B65D79/0087—Packages having deformable parts for indicating or neutralizing internal pressure-variations by other means than venting the deformable part being located in a closure, e.g. in caps or lids
    • 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
    • B65D2205/00—Venting means
    • B65D2205/02—Venting holes

Definitions

  • the invention relates to a H exertab Heilllbaren container and a closure cap for a H constituab Heilllbaren container with a wall part, with a subsequent to the wall part cover part, with a subsequent to the lid part chamber and with a device for pressure relief of the container, the one outgoing from the lid part, in the cap interior extending diaphragm, wel-che membrane liquid and gas tight and partially elastic and is limited together with the lid part, the chamber.
  • Screw caps are known from the prior art as closure caps for closing glass containers, which by deformation, in particular bulges, absorb a negative pressure, as occurs, for example, during hot filling of the glass containers, and can thus relieve the glass container.
  • caps have to vacuum relief of the container to a device with an elastic membrane.
  • this discloses the EP2531132A1 a multi-part cap made of an elastic, liquid and gas-tight membrane, a valve element and a protective cover with a wall and cover part.
  • the membrane has to be slipped over the opening of the filled container, then the head space of the container has to be evacuated by means of the valve element and then the protective cover of the membrane has to be slipped over.
  • the evacuation of the head space serves a gas-poor closure of the container and pulls the elastic membrane in the direction of the cap interior, whereby a chamber for pressure relief of the container can form between the membrane and the lid part.
  • a disadvantage of such a closure cap is a high handling effort and a high process reliability when filling the container in order to ensure the freedom of movement of the membrane to relieve the pressure on the container can.
  • Such caps are therefore usually not suitable for machine packaging processes.
  • multi-part caps are structurally complex and thus costly to manufacture.
  • the invention has therefore based on the input described prior art, the task of simplifying a cap constructively that it is easy to handle in a hot filling and ensures high process reliability.
  • the cap should be a gas-poor closure of a container conducive and inexpensive to produce.
  • the invention achieves the stated object in that the membrane attached to the cover part has at least one rigid membrane section, through which the membrane runs into the interior of the cap.
  • the membrane fastened to the cover part has at least one rigid membrane section over which the membrane runs into the interior of the cap, a particularly large amount of gas can be displaced from the headspace of the container when the container is closed, in a simple and reliable manner.
  • the step of evacuating the head space or a valve on the closure cap can be dispensed with.
  • the invention can thus be achieved that after closing adjusting pressure changes of the remaining gas in the container - are kept lower - such as during its cooling.
  • both the handling of the cap can be facilitated as well as their design effort and thus their production costs can be reduced.
  • the invention can stand out from the state of the art in that the membrane fastened to the cover part runs into the cap inside via the rigid membrane section.
  • this can be the touchdown of the cover part - so its handling thereof, depending on the shape of a container to be closed - be facilitated because the rigid diaphragm portion can also serve in the manner of a guide to the cover part correctly to position the container.
  • an elastic membrane portion of the cover part are spaced, for example, to reduce the risk of pinching between the cover part and container to be closed.
  • the presence of a cavity can always be ensured in this way on the rear side of the elastic section of the membrane in order to safely and easily displace gas from the container when the cover part is put on.
  • this also supports the freedom of movement of the membrane, whereby the pressure relief of a container can be advantageously ensured.
  • the cap can prove to be particularly reliable and stable.
  • the closure cap according to the invention by using the closure cap according to the invention, the closure of particularly thin-walled, hot-settable containers can also be made possible, since no deformations need be feared due to the pressure equalization achieved by the closure cap.
  • a comparatively high process reliability when filling the container can be achieved, which is the suitability of the closure cap according to the invention for a machine hot filling particularly beneficial.
  • the freedom of movement of the membrane can be increased and ensured if the rigid membrane section comprises an elastic diaphragm section closed.
  • the circumferential rigid diaphragm section can thus ensure a stable spacing of the elastic diaphragm section from the cover part and its clamping. As a result, functional reliability and ease of handling of the closure cap according to the invention are further improved.
  • the guide of the closure cap can and thus their handling can be facilitated.
  • this makes it possible, when placing the closure cap according to the invention on a container, possibly to favor a displacement of contents from the head space into the edge region of the container and thus to support a particularly gas-poor closure of the container.
  • the pressure-compensating section of the membrane-namely, the elastic membrane section-can have a sufficiently large surface despite a tapered design of the chamber in order to realize the advantages of the invention.
  • the placement of the cap on a container to be closed can continue to be facilitated because the chamber can continue to serve as a guide.
  • the second chamber section following membrane portion can be made larger, which can be taken care of for improved pressure equalization.
  • the second chamber portion is shorter than the first chamber portion so as to keep an undercut of the membrane in the headspace of the container small, which may be conducive to a gas-poor closure of the container.
  • the freedom of movement of the membrane and thus the pressure relief of the container can be further increased if the elastic membrane section is convexly curved.
  • this course of the membrane may be beneficial for the possible displacement of contents in the head space of the container and a gas-poor closure of the container.
  • the distance between the rigid membrane section and the wall part is greater than the maximum wall thickness of the receptacle which can be received by the closure cap, this can occur when the closure cap is placed on the receptacle and displaces gas via the gap between the membrane and the wall part support the headspace of the container. A particularly gas-poor closure through the cap can thus be ensured.
  • closure cap can be simplified if the membrane is firmly bonded to the lid part.
  • the cover part has a barrier layer, the membrane being fastened to the barrier layer of the cover part, this can improve the attachment of the membrane to the cover part and further increase the stability of the closure cap. In addition, a tight seal of the container can remain safe through this barrier even with damage to the membrane.
  • the dimensional stability of the membrane can be increased if the membrane connects via a closed circumferential radial flange portion on the cover part. In addition, a stable attachment of the membrane can be made possible on the cover part.
  • the handling of the cap when they are provided on a container can be further facilitated if the wall part has an internal thread.
  • Comparatively high pressures can be absorbed without deformation of the cap when the lid member has an opening for loading and / or ventilation of the chamber. This can also ensure that even high pressure differences can be compensated by the device according to the invention.
  • the closure cap can be used in a container, in particular made of plastic, for hot filling.
  • FIGS. 1 and 2 For example, a gas-tight and liquid-tight closure cap 1 is shown, with which a filled with hot material 2 container 3 is closed from a plastic material. On the outside, this closure cap 1 shows a wall part 4 which is annular in cross-section and a cover part 5 adjoining this wall part 4.
  • this gas- and liquid-tight closure cap 1 has both a chamber 6, which adjoins the lid part 5, and a device 7 for pressure equalization of the container 3.
  • the device 7 is assigned a membrane 8.
  • This membrane 8 is liquid and gas tight and at least partially elastic. It connects to the cover part 5 and extends from this into the cap interior 9.
  • this membrane 8 bounded with the lid part 5, the chamber 6, whereby the membrane 8 is given a freedom of movement for pressure relief of the container 3 due to a partially existing elasticity.
  • Such a pressure compensation is particularly required when cooling the hot-filled product 2, because it must be expected in the headspace 10 of the container 3 with a significant negative pressure and consequently with mechanical deformation of the container 3.
  • the membrane 8 is fixed to the cover part 5 and has a rigid membrane portion 11, through which the membrane 8 runs in the direction of the cap interior 9. This can, among other things be achieved the advantage of displacing a present in the headspace 10 of the container 3 gas already when placing the cap 1 and thus to reduce the amount of trapped gas in a simple way - without other means or measures for evacuation of the container 3 provided or must be made.
  • the rigid membrane portion 11 surrounds a resilient membrane portion 12 of the membrane 8 closed, creating a tympanic-like clamping of the elastic membrane portion 12 is provided.
  • the membrane 8 is not only stable in the direction of the cap interior 9, this also leads to improved freedom of movement on the elastic membrane portion 12.
  • the pressure sensing of the cap 1 is thus substantially improved, whereby the container 3 against mechanical deformation is particularly well protected.
  • Fig. 2 can be seen in detail that the rigid membrane portion 11 is divided into a plurality of wall sections 13, 14.
  • the tapered chamber portion 13 may be provided the cap 1 on the container 3 gas from the headspace 10 to the wall part 4 and thus from the container 3 are passed. This improves the gas-poor closure of the container 3.
  • the rigid membrane portion 11 can serve as a kind of guide.
  • this rigid membrane portion 11 serves to space the elastic membrane portion 12 when placing the closure cap 1 according to the invention from the upper edge of a container - and to protect it so, for example, before pinching.
  • the elastic membrane section 12 also tenses expanded - which, despite the tapered design of the rigid membrane section 11, ensures a high pressure relief.
  • the frustoconical widening chamber portion 13 is shorter than the frustoconical tapered chamber portion 14 executed to keep the undercut 15 between the two chamber sections 13 and 14 low.
  • the elastic diaphragm portion 12 also bulges away from the cover part 5 convexly curved, which is a displacement of gas or possibly also of filling material 2 is useful - and thus further supports a gas-poor closure of the container 3.
  • Fig. 2 It can be seen that the rigid membrane portion 11 spaced from the wall portion 4 projecting in the direction of the cap interior 9 - namely the distance 16 between the wall part 4 and the rigid diaphragm portion 11 is formed a multiple greater than the average wall thickness 17 of the receptacle of the cap 1 receptacle 3 Thus, a sufficiently large flow channel for the gas to be discharged from the container 3 when closing the container 3 is given.
  • the membrane 8 is firmly attached to the cover part 5, via its closed circumferential, radial flange portion 18, to which the membrane 8 ends.
  • the lid part 5 has a barrier layer 19, to which the membrane 8 is fastened in a material-locking manner.
  • the membrane 8 Since the membrane 8 is also made liquid and gas-tight, it is - without having to give up the gas and liquid-tight Eingenschaft the cap 1 - possible to provide an opening 20 in the lid part 5, with the chamber 6 vented or vented becomes. This increases the possible amount of buckling deformation of the membrane due to a reduction in the pressure difference - also the membrane 8 is mechanically relieved and their stability increased thereby. As a further consequence, deformations of the closure cap 1 and of a container 3 sealed with it are also reduced.
  • the wall part 4 forms an internal thread 21, which cooperates with an external thread 22 of the container 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
EP15185367.8A 2015-09-15 2015-09-15 Capuchon de fermeture Withdrawn EP3144245A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP15185367.8A EP3144245A1 (fr) 2015-09-15 2015-09-15 Capuchon de fermeture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP15185367.8A EP3144245A1 (fr) 2015-09-15 2015-09-15 Capuchon de fermeture

Publications (1)

Publication Number Publication Date
EP3144245A1 true EP3144245A1 (fr) 2017-03-22

Family

ID=54145702

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15185367.8A Withdrawn EP3144245A1 (fr) 2015-09-15 2015-09-15 Capuchon de fermeture

Country Status (1)

Country Link
EP (1) EP3144245A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018172979A1 (fr) 2017-03-23 2018-09-27 Ramesh Pillai Bouchon annulaire en plastique moulé d'un seul tenant
CN111587498A (zh) * 2018-01-10 2020-08-25 奥迪股份公司 用于壳体的安全阀以及用于储存电能的储能器

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2523849A1 (de) * 1974-05-31 1975-12-18 Carnaud Total Interplastic Verfahren und vorrichtung zum verschliessen von behaeltern aus verformbarem material
US4174784A (en) * 1976-11-17 1979-11-20 Hartung Philip F Anti-collapse cap
EP1531132A1 (fr) * 2003-11-13 2005-05-18 Bruno Meroni Membrane pour fermer des récipients et élément de préservation de produit comprenant cette membrane
US20120205339A1 (en) * 2011-02-10 2012-08-16 Graham Packaging Company, L.P. Pressure-motion compensating diaphragm for containers
EP2531132A1 (fr) 2010-02-01 2012-12-12 Gyrus Medical Limited Instrument et système électro-chirurgicaux

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2523849A1 (de) * 1974-05-31 1975-12-18 Carnaud Total Interplastic Verfahren und vorrichtung zum verschliessen von behaeltern aus verformbarem material
US4174784A (en) * 1976-11-17 1979-11-20 Hartung Philip F Anti-collapse cap
EP1531132A1 (fr) * 2003-11-13 2005-05-18 Bruno Meroni Membrane pour fermer des récipients et élément de préservation de produit comprenant cette membrane
EP2531132A1 (fr) 2010-02-01 2012-12-12 Gyrus Medical Limited Instrument et système électro-chirurgicaux
US20120205339A1 (en) * 2011-02-10 2012-08-16 Graham Packaging Company, L.P. Pressure-motion compensating diaphragm for containers

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018172979A1 (fr) 2017-03-23 2018-09-27 Ramesh Pillai Bouchon annulaire en plastique moulé d'un seul tenant
EP3601084A4 (fr) * 2017-03-23 2021-02-24 Ramesh Pillai Bouchon annulaire en plastique moulé d'un seul tenant
CN111587498A (zh) * 2018-01-10 2020-08-25 奥迪股份公司 用于壳体的安全阀以及用于储存电能的储能器

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