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WO2018054844A1 - Bec verseur pour emballage alimentaire - Google Patents

Bec verseur pour emballage alimentaire Download PDF

Info

Publication number
WO2018054844A1
WO2018054844A1 PCT/EP2017/073501 EP2017073501W WO2018054844A1 WO 2018054844 A1 WO2018054844 A1 WO 2018054844A1 EP 2017073501 W EP2017073501 W EP 2017073501W WO 2018054844 A1 WO2018054844 A1 WO 2018054844A1
Authority
WO
WIPO (PCT)
Prior art keywords
membrane
spout
neck
flange
tubular member
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.)
Ceased
Application number
PCT/EP2017/073501
Other languages
English (en)
Inventor
Anders Danielsson
Robert Rosberg
Göran Johansson
Viktor PETERSSON
Henrik Andersson
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.)
Tetra Laval Holdings and Finance SA
Original Assignee
Tetra Laval Holdings and Finance SA
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 Tetra Laval Holdings and Finance SA filed Critical Tetra Laval Holdings and Finance SA
Priority to CN201780057690.6A priority Critical patent/CN109715511A/zh
Publication of WO2018054844A1 publication Critical patent/WO2018054844A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • B65D51/18—Arrangements of closures with protective outer cap-like covers or of two or more co-operating closures
    • B65D51/20—Caps, lids, or covers co-operating with an inner closure arranged to be opened by piercing, cutting, or tearing
    • B65D51/22—Caps, lids, or covers co-operating with an inner closure arranged to be opened by piercing, cutting, or tearing having means for piercing, cutting, or tearing the inner closure
    • B65D51/228—Caps, lids, or covers co-operating with an inner closure arranged to be opened by piercing, cutting, or tearing having means for piercing, cutting, or tearing the inner closure a major part of the inner closure being removed from the container after the opening
    • 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
    • B65D41/045—Discs
    • 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
    • B65D2251/00—Details relating to container closures
    • B65D2251/0003—Two or more closures
    • B65D2251/0006—Upper closure
    • B65D2251/0015—Upper closure of the 41-type
    • 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
    • B65D2251/00—Details relating to container closures
    • B65D2251/0003—Two or more closures
    • B65D2251/0006—Upper closure
    • B65D2251/0028—Upper closure of the 51-type
    • 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
    • B65D2251/00—Details relating to container closures
    • B65D2251/0003—Two or more closures
    • B65D2251/0068—Lower closure
    • B65D2251/0093—Membrane
    • B65D2251/0096—Membrane integral with the container
    • 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
    • B65D51/18—Arrangements of closures with protective outer cap-like covers or of two or more co-operating closures
    • B65D51/20—Caps, lids, or covers co-operating with an inner closure arranged to be opened by piercing, cutting, or tearing
    • B65D51/22—Caps, lids, or covers co-operating with an inner closure arranged to be opened by piercing, cutting, or tearing having means for piercing, cutting, or tearing the inner closure
    • B65D51/221—Caps, lids, or covers co-operating with an inner closure arranged to be opened by piercing, cutting, or tearing having means for piercing, cutting, or tearing the inner closure a major part of the inner closure being left inside the container after the opening
    • B65D51/222—Caps, lids, or covers co-operating with an inner closure arranged to be opened by piercing, cutting, or tearing having means for piercing, cutting, or tearing the inner closure a major part of the inner closure being left inside the container after the opening the piercing or cutting means being integral with, or fixedly attached to, the outer closure
    • 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
    • B65D51/18—Arrangements of closures with protective outer cap-like covers or of two or more co-operating closures
    • B65D51/20—Caps, lids, or covers co-operating with an inner closure arranged to be opened by piercing, cutting, or tearing
    • B65D51/22—Caps, lids, or covers co-operating with an inner closure arranged to be opened by piercing, cutting, or tearing having means for piercing, cutting, or tearing the inner closure
    • B65D51/221—Caps, lids, or covers co-operating with an inner closure arranged to be opened by piercing, cutting, or tearing having means for piercing, cutting, or tearing the inner closure a major part of the inner closure being left inside the container after the opening
    • B65D51/222—Caps, lids, or covers co-operating with an inner closure arranged to be opened by piercing, cutting, or tearing having means for piercing, cutting, or tearing the inner closure a major part of the inner closure being left inside the container after the opening the piercing or cutting means being integral with, or fixedly attached to, the outer closure
    • B65D51/224—Caps, lids, or covers co-operating with an inner closure arranged to be opened by piercing, cutting, or tearing having means for piercing, cutting, or tearing the inner closure a major part of the inner closure being left inside the container after the opening the piercing or cutting means being integral with, or fixedly attached to, the outer closure the outer closure comprising flexible parts
    • 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
    • B65D53/00—Sealing or packing elements; Sealings formed by liquid or plastics material
    • B65D53/04—Discs

Definitions

  • the present invention relates to a spout for a food package.
  • the spout for a food package is a spout for a food package.
  • present invention relates to a spout having a membrane sealing an end of said spout.
  • Food packages are generally provided with an opening device in order to
  • the opening device may either be
  • an irreversible opening i.e. once the package is opened it may not be closed, or a
  • the device is to arrange a threaded neck including a pouring spout on the upper part of the package.
  • the threaded neck is designed such that it may receive a cap, including
  • the cap covers the open spout of the neck, the enclosed food product is protected from
  • the outer environment and the quality of the product may thus be preserved during
  • WO2013072475 describes a cap
  • the neck assembly having a membrane for sealing the food package.
  • the membrane is
  • the invention is based on the provision of a
  • tubular member at one end connected to the membrane at a position radially inwards
  • the free end of the tubular member has an angled surface for sliding the membrane on the inner walls of the neck when sealing and/or re-sealing.
  • the solution is provided by a spout forming part of a neck of a package, where the spout comprises a membrane and a tubular member having a main body and an end portion which is releasably attached to the membrane.
  • the membrane comprises a membrane flange with an outer portion which extends radially outside the end portion of the tubular member.
  • the end portion has a thickness less than the thickness of the adjacent main body, wherein the axial length of the end portion is between 15-65% of the axial thickness of the outer portion of the membrane flange .
  • the axial length of the end portion may be between 20- 50% of the axial thickness of the outer portion of the membrane flange.
  • the membrane flange may further comprise an inner portion, where the end portion of the tubular member may be attached to the interface between the inner and outer portions of the membrane flange, wherein the axial thickness of the inner portion may be equal to, or less than the axial thickness of the outer portion.
  • the inner surface of the inner portion of the membrane flange is arranged at an axial distance from the inner surface of the outer portion of the membrane flange.
  • the inner surface of the inner portion of the membrane flange and the inner surface of the outer portion of the membrane flange may be parallel.
  • the outer surface of the inner portion of the membrane flange and the outer surface of the outer portion of the membrane flange may be parallel.
  • the present solution is a spout forming part of a neck of a
  • the spout comprises a membrane, and a tubular member having a
  • the membrane main body and an end portion releasably attached to the membrane.
  • the membrane flange further comprises an
  • the axial thickness of the inner portion is equal to, or less than the axial thickness of the outer portion.
  • flange may be arranged at an axial distance from the inner surface of the outer portion
  • the membrane may further comprise a central circular disc member and an outer annular disc member, where the outer annular disc
  • the member may be arranged radially in between the membrane flange and the central
  • sealing lip extends from an axial position arranged at a
  • one last aspect of the solution is a a neck assembly, comprising the spout
  • cap comprises at least one cutting element configured to separate the membrane from
  • Fig. 1 is a schematic view of a package having a spout according to an embodiment
  • Fig. 2a is a cross-sectional view of a cap for use with a spout according to various embodiments
  • Fig. 2b is a cross-sectional view of a neck, including a spout according to an embodiment
  • Fig. 2c is a top view of a cutting element for separating a membrane from a neck according to an embodiment
  • Figs. 3-6 are cross-sectional views of an assembly comprising a neck and cap during closing of the spout;
  • Fig. 7a is a cross-sectional view of a spout according to an embodiment
  • Fig. 7b is an enlarged view of parts of the spout shown in Fig. 7a.
  • the food package 10 has a shape of a bottle formed by a body portion 1 1 , which may preferably be made of a carton-based laminate and a top portion 12, which may preferably be made of plastic.
  • the top portion 12 is provided with a neck 20 forming the upper part of the plastic top portion 12.
  • the neck 20 may be integrally formed with the top portion 12, such that the entire top portion 12, including the neck 20, may be manufactured as a single piece.
  • a cap 30 is arranged onto the neck for sealing a spout 100 (see e.g. Fig. 2b) forming the upper end of the neck 20.
  • the cap 30 may optionally be provided with a tamper ring 40 as is well known in the art.
  • the package 10 may be manufactured by first forming a sleeve of the carton- based laminate, i.e. a tubular body extending between two open ends. In a second step, performed before, after, or in parallel with the sleeve forming, the plastic top portion 12 is manufactured by molding.
  • the plastic top portion 12 may, as is shown in Fig. 1 , comprise a shoulder section 13 arranged below the neck 20 and to which the tubular body is later attached.
  • the shoulder section 13 is thus arranged to connect the sleeve, which forms basis for the body portion 1 1 , to the neck 20.
  • the neck 20 is preferably provided with threads for engaging with corresponding threads of the cap 30 including the tamper ring 40.
  • the neck 20 and the shoulder section 13 may be provided as one piece, or as two separate pieces which are molded together.
  • the sleeve is filled with food content. Preferably, this is done by turning the sleeve and the top portion 12 assembly upside down, such that the remaining open end of the sleeve is facing upwards. After being filled the open end of the sleeve may be sealed and folded to a flat bottom as illustrated in Fig. 1 .
  • the cap 30 is screwed onto the top portion 12 after the package 10 is filled. This may e.g. be the case if the neck 20 is provided with a membrane 150 (see Fig. 2b and onward) sealing the spout 100 of the neck 20, which will be described in more detail below.
  • the cap 30, including the tamper ring 40, is shown in Fig. 2a.
  • the cap 30 has a lower portion 31 being provided with internal threads 32.
  • the threads 32 are configured to engage with corresponding threads 22 of the neck 20 (see e.g. Fig. 2b).
  • the lower portion 31 extends into an upper portion 33 which forms the closed upper end of the cap 30.
  • the interior of the upper portion 33 is provided with means for separating the membrane 150 from the spout 100, as well as for retaining the cut-off membrane 150.
  • cutting elements 50 are arranged following the threads 32 cutting elements 50.
  • the purpose of the cutting elements or knives 50 is to penetrate a section of the spout 100, immediately below the membrane 150, and to separate that membrane 150 from the rest of the spout 100.
  • the cutting elements 50 serve the purpose of securing the membrane 150 in an axial position (i.e along the A-axis in Fig. 2A) between the cutting elements 50 and the interior of the top part of the upper portion 33. This will reduce the amount of litter generated, yet the technical reason is that the membrane 150 serves an important purpose when resealing the closure.
  • the number of cutting elements 50 will depend on several factors, yet one important factor is the rising of the threads 32.
  • the cutting action is effected when unscrewing the cap 30, and the cutting elements 50 will follow the rotational motion of the cap 30 as well as the axial movement thereof, all relative to the neck 20. This implies that the cutting action, or "removal action" to be more general, have to be finalized within a certain turning angle since otherwise the axial movement will move the cutting element 50 out of reach from the area to be cut. So, the steeper the rising of the threads, the more cutting elements 50 are needed.
  • each cutting element 50 will generate a torque resistance when the cap 30 is unscrewed the first time, and in order to reduce the opening torque to acceptable levels it is not wise to have too many cutting elements 50.
  • five cutting elements 50 have been used, yet it is up to the skilled person to deduce a suitable number.
  • one cutting element 50 is sufficient to perform the cutting action in order to separate the membrane 150 from the spout 100.
  • at least three cutting elements 50 are necessary to perform the cutting and the membrane 150 retaining action, after the membrane 150 has been cut off from the spout 100.
  • stop elements 60 are arranged at about the same axial position as the cutting elements 50 stop elements 60 are arranged.
  • the stop elements 60 are realized by stop ledges, i.e. flanges extending from the top part of the upper portion 33 down to a specific axial position, and a small distance radially inwards. It should be noted that within the context of this specification, all references to "axial” or “radial” should be interpreted as shown by the dashed arrows in Fig. 2a. The axial direction is indicated by the letter “A”, while the radial direction is indicated by the letter "R".
  • stop elements 60 there are a total of five stop ledges 60 and they are dimension so as to allow for the membrane 150 to fit between them.
  • the purpose of the stop elements 60 is to prevent the cap 30 from being screwed too far down (i.e. in a closing direction) onto the neck 20, and thus to prevent damage to the membrane 150 during application of the cap 30 or when resealing the closure after initial opening.
  • the stop elements 60 of the cap 30 cooperate with a counter element 24 of the neck 20 (see Fig. 2b).
  • the counter element 24 is represented as a shoulder extending radially outwards.
  • FIG. 2c An example of a cutting element 50 is shown in further details in Fig. 2c.
  • the cutting element 50 is shown from above.
  • the cutting element 50 is attached to the inner perimeter of the cap 30, at an axial position indicated in Fig. 2a.
  • the cutting element 50 is allowed to pivot by means of a hinge connection with the inner perimeter of the cap 30.
  • the hinge connection is in this embodiment realized by a reduced thickness at an area 52 immediately adjacent to the inner perimeter of the cap 30.
  • the region 54 is the cutting region of the cutting element 50, and in this region the thickness of the cutting element 50 is reduced to form a cutting edge 54.
  • the cutting edge 54 may be rectilinear, as in the present embodiment.
  • the free end 56 remote to the hinged attachment may preferably be blunt, and may preferably be less sharp than the cutting region 54.
  • the result is the benefit that the free end 56 is not prone to damage the connection region between the membrane 150 and the rest of the spout 100 when it is not supposed to. This may e.g. be important when the cap 30 is arranged on the spout 100 for the first time.
  • the cap 30 is screwed onto the neck 20 for the first time, i.e. when the membrane 150 is attached to the neck 20.
  • the cutting elements 50 will bend downwards when the cap 30 is unscrewed from the neck 20, whereby the cutting elements 50 will be urged inwards and thus cut off the membrane 150 from the neck 20.
  • the cutting elements 50 are subject to an idle position in which they protrude over a radially outer part of the membrane 150, more specifically a free end of the cutting elements 50 extend past a circumferential edge of the membrane 150. Hence, the cutting elements 50 will retain the membrane 150 within the cap 30 after the cap 30 has been completely unscrewed from the neck 20.
  • FIGs. 4-6 a closing sequence of a cap and neck assembly is shown. Prior to such sequence, it is assumed that the cap 30 has once been unscrewed from the neck 20 such that the membrane 150 has been separated from the neck 20.
  • the cap 30 has been screwed on the neck 20.
  • the cutting elements 50 will however be disengaged from the membrane 150 when the membrane 150 is reaching the open spout 100 of the neck 20.
  • the membrane 150 will rest on the spout 100 while the cap 30 moves down the neck due to the provision of the threads, converting a rotational movement to a vertical movement.
  • the membrane 150 is on its upper side in contact with the closed end of the cap 30, while it rests on the open spout 100 of the neck 20 on its lower side.
  • the closed end of the cap 30 will interact with the membrane 150.
  • the membrane 150 will flex such that its diameter increases, whereby a sealing lip 160 of the membrane 150 moves towards the interior side of the spout 100.
  • This procedure is continued as the cap 30 is further rotated down the neck 20.
  • the cap 30 is tightly screwed onto the neck 20, and the membrane 150 has been subjected to an increased flexing.
  • the sealing lip 160 is urged radially outwards until it contacts the interior wall of the spout 100 of the neck 20.
  • the upper end of the spout 100 engages with a membrane flange 170 such that the membrane 150 locks in the desired sealing position.
  • the membrane 150 thus seals the spout 100 of the neck 20 such that the outer environment is unable to affect the food product enclosed within a package equipped with the neck spout 100, including the membrane 150, and the cap 30.
  • the spout 100 is defined as the upper part of the neck 20 through which the package content is discharged. Prior to opening of the package the spout 100 thus comprises the membrane 150, however once opened the membrane 150 is separated from the spout 100. In Fig. 7 the spout 100 is shown prior to opening of the package, i.e. the membrane 150 forms part of the spout 100. As indicated by the dashed box in Fig. 7, the spout 100 forms the upper part of the neck 20, approximately starting from the shoulder 24 and extending upwards.
  • the spout 100 is formed by a tubular member 1 10 extending from the shoulder 24 of the neck and upwards.
  • the tubular member 1 10 has a main body 1 12 and an upper end portion 1 14 which forms the connection to the membrane 150.
  • the cutting elements 50 of the cap 30 will cut through the upper end portion 1 14 of the spout 100 such that the membrane 150 is separated from the main body 1 12 of the tubular member 1 10.
  • the membrane 150 forming a circular closure of the spout 100, comprises a central circular disc member 152 and an outer annular disc member 154.
  • the outer annular disc member is arranged radially in between the central circular disc member 152 and a membrane flange 170.
  • the outer annular disc member 154 is connected to the central circular disc member 152 at an angle a, and the membrane flange 170 is connected to the outer annular disc member 154 at an angle ⁇ .
  • These angles facilitates the flexing of the membrane 150 during re-sealing, such that the entire diameter of the membrane 150 may increase as the angles ⁇ , ⁇ increases due to a downward pressing action at the centre of the membrane 150.
  • the sealing lip 160 Upon such increase of the membrane's 150 diameter, the sealing lip 160 will be urged towards the inner sidewalls of the main body 1 12 of the tubular member 1 10. In an idle position where no downward force is applied to the membrane 150 the sealing lip 160 is projecting downwards.
  • the membrane flange 170 is formed by two adjoining parts; an outer portion 172 which extends radially outside the end portion 1 14 of the tubular member 1 10, and an inner portion 174.
  • the end portion 1 14 of the tubular member 1 10 is attached to the interface between the inner and outer portions 172, 174 of the membrane flange 170.
  • the end portion 1 14 of the tubular member 1 10 has a certain axial length L1 .
  • the axial length L1 is e.g. defined as the distance at which the uppermost portion of the tubular member 1 10 exhibits a substantially constant thickness. Hence, although the main body 1 12 is tapered towards the end portion 1 14 the axial length L1 does not include such tapered portion.
  • the axial length L1 could also be defined as the distance at which the uppermost portion of the tubular member 1 10 exhibits a thickness which is less than the thickness of the main tubular member 1 10 at a position which, when the membrane 150 is separated from the tubular member 1 10, forms the outlet of the neck 20.
  • the axial length L1 could also be defined as the distance at which the uppermost portion of the tubular member 1 10 exhibits a thickness which is within a certain percentage, such as e.g. 20-60%, of the thickness of the main tubular member 1 10 at a position which, when the membrane 150 is separated from the tubular member 1 10, forms the outlet of the neck 20.
  • the axial length L1 of the end portion 1 14 may e.g. be in the range of 0.1 -0.4 mm.
  • the axial thickness of the membrane flange 170 varies along its radial extension.
  • the outer portion 172 has a specific axial thickness D1 which is equal to, or greater than the thickness D2 of the inner portion 174.
  • the axial length L1 of the end portion 1 14 should be in the range of 15-65%, preferably in the range of 20-50%, of the axial thickness D1 of the outer portion 172 of the membrane flange 170.
  • This ratio between the axial length L1 and the axial thickness D1 has surprisingly proven to allow for a better re-sealing as a reduced number of plastic projections are formed. Such plastic projections may otherwise make it more difficult to provide re-sealing, especially if they are arranged at right angles.
  • the axial thickness D2 of the inner portion 174 of the membrane flange 170 is equal to, or less than the axial thickness D1 of the outer portion 172 of the membrane flange 170.
  • the outer surface 175a of the inner portion 174 of the membrane flange 170 coincide with the outer surface 173a of the outer portion 172 of the membrane flange 170.
  • an inner surface 175b of the inner portion 174 of the membrane flange 170 is arranged at an axial distance from an inner surface 173b of the outer portion 172 of the membrane flange 170.
  • These inner surfaces 173b, 175b may be parallel, and the free height H1
  • the sealing lip 160 protrudes downwards into the tubular member 1 10.
  • sealing lip 160 extends from the inner surface 175b of the inner portion 174, i.e. from
  • cap could be applied to all sorts of packages provided with opening devices.

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

Abstract

L'invention concerne un bec verseur (100) faisant partie d'un goulot (20) d'un emballage (10), comprenant une membrane (150), et un élément tubulaire (110) ayant un corps principal (112) et une partie d'extrémité (114) fixé de manière amovible à ladite membrane (150). La membrane (150) comprend une bride de membrane (170) ayant une partie externe (172) s'étendant radialement à l'extérieur de ladite partie d'extrémité (114) de l'élément tubulaire (110), la bride de membrane (170) comprenant en outre une partie interne (174), la partie d'extrémité (114) de l'élément tubulaire (110) étant fixée à l'interface entre les parties interne et externe (172, 174) de la bride de membrane (170). L'épaisseur axiale (D2) de la partie interne (174) est égale ou inférieure à l'épaisseur axiale (D1) de la partie externe (172). L'invention concerne également un ensemble goulot comprenant le bec verseur décrit précédemment.
PCT/EP2017/073501 2016-09-20 2017-09-18 Bec verseur pour emballage alimentaire Ceased WO2018054844A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201780057690.6A CN109715511A (zh) 2016-09-20 2017-09-18 用于食品包装的喷嘴

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP16189722 2016-09-20
EP16189722.8 2016-09-20

Publications (1)

Publication Number Publication Date
WO2018054844A1 true WO2018054844A1 (fr) 2018-03-29

Family

ID=56990250

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2017/073501 Ceased WO2018054844A1 (fr) 2016-09-20 2017-09-18 Bec verseur pour emballage alimentaire

Country Status (3)

Country Link
EP (1) EP3296223A1 (fr)
CN (1) CN109715511A (fr)
WO (1) WO2018054844A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114423688A (zh) * 2019-09-25 2022-04-29 日本山村硝子株式会社 盖

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL123561C (fr) *
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WO2008148764A2 (fr) * 2007-06-05 2008-12-11 Sacmi Cooperativa Meccanici Imola Societa' Cooperativa Moyen de fermeture
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