WO2008128616A1 - Container, set comprising a ring, a foil and a lid, a preset therefor, and a method for producing the set for the container - Google Patents

Container, set comprising a ring, a foil and a lid, a preset therefor, and a method for producing the set for the container Download PDF

Info

Publication number
WO2008128616A1
WO2008128616A1 PCT/EP2008/002436 EP2008002436W WO2008128616A1 WO 2008128616 A1 WO2008128616 A1 WO 2008128616A1 EP 2008002436 W EP2008002436 W EP 2008002436W WO 2008128616 A1 WO2008128616 A1 WO 2008128616A1
Authority
WO
WIPO (PCT)
Prior art keywords
ring
foil
lid
container
resilient
Prior art date
Application number
PCT/EP2008/002436
Other languages
French (fr)
Inventor
Johan Willem Roeterdink
Original Assignee
Impress Group B.V.
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 Impress Group B.V. filed Critical Impress Group B.V.
Priority to CA002684337A priority Critical patent/CA2684337A1/en
Priority to BRPI0810379-8A2A priority patent/BRPI0810379A2/en
Priority to NZ580459A priority patent/NZ580459A/en
Priority to US12/596,317 priority patent/US20110000912A1/en
Priority to JP2010503368A priority patent/JP2010524781A/en
Priority to AU2008241134A priority patent/AU2008241134A1/en
Priority to MX2009011119A priority patent/MX2009011119A/en
Priority to EA200970965A priority patent/EA017423B1/en
Publication of WO2008128616A1 publication Critical patent/WO2008128616A1/en
Priority to MA32347A priority patent/MA31377B1/en

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
    • B65D43/00—Lids or covers for rigid or semi-rigid containers
    • B65D43/02—Removable lids or covers
    • B65D43/0202—Removable lids or covers without integral tamper element
    • B65D43/0214—Removable lids or covers without integral tamper element secured only by friction or gravity
    • B65D43/022—Removable lids or covers without integral tamper element secured only by friction or gravity only on the inside, or a part turned to the inside, of the mouth of 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
    • B65D11/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material
    • B65D11/02—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material of curved cross-section
    • B65D11/06—Drums or barrels
    • B65D11/08—Arrangements of filling or discharging apertures
    • 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
    • B65D15/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, sections made of different materials
    • 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
    • B65D43/00—Lids or covers for rigid or semi-rigid containers
    • B65D43/02—Removable lids or covers
    • 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
    • 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
    • B65D2251/0018—Upper closure of the 43-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
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018—Overall construction of the lid
    • B65D2543/00064—Shape of the outer periphery
    • B65D2543/00074—Shape of the outer periphery curved
    • B65D2543/00092—Shape of the outer periphery curved circular
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018—Overall construction of the lid
    • B65D2543/00259—Materials used
    • B65D2543/00277—Metal
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00435—Lids secured to an intermediate ring or like annular member fixed to the container mouth
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00481—Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/0049—Contact between the container and the lid on the inside or the outside of the container on the inside, or a part turned to the inside of the mouth of the container
    • B65D2543/00509—Cup
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00481—Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/00537—Contact between the container and the lid on the inside or the outside of the container on the outside, or a part turned to the outside of the mouth of 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00481—Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/00537—Contact between the container and the lid on the inside or the outside of the container on the outside, or a part turned to the outside of the mouth of the container
    • B65D2543/00546—NO contact

Definitions

  • CONTAINER SET COMPRISING A RING, A FOIL AND A LID, A PRESET THEREFOR, AND A METHOD FOR PRODUCING THE SET FOR THE CONTAINER
  • the present invention relates to a container comprising a body provided with a ring, a foil adhered to the ring and a lid covering the foil.
  • the invention further relates to a set comprising the ring, the foil and the lid, wherein the foil is adhered to the ring, to a preset comprising the body, the foil and the lid and wherein the foil is not yet adhered to the ring, and finally to a method for producing the set comprising the ring, the lid and the foil adhered to the ring.
  • Containers according to the present invention should have an optimal airtight closure due to their content and to their use under conditions which when in open contact with the container content results in a accelerated degradation of the content. Therefore the body is provided with a ring determining an opening and this opening is closed of by a foil adhered to the container.
  • the foil may be pealed of using a foil tab.
  • the container is furthermore provided with a metal lid covering the foil. Accordingly, the lid protects the foil against undesired breakage.
  • the container is furthermore tamper proof and reduces a risk for unwanted additions to the content of the container.
  • One type of such containers comprises a foil which is seamed into the seam formed between a ring curl and a curl of the container body.
  • Such type of container is called a PAL container.
  • Another type of container comprises a pealable foil which is sealed to an horizontal ring part.
  • the lid closes over the foil and onto the ring and is often provided with arresting means (a circumferential bead or dimples) avoiding an undesired release of the lid from the ring.
  • Such container is often called a PALOS container.
  • Another type of container comprises a pealable foil which is sealed to the ring and a plastic lid or cap overdoses foil and ring and is connected to the container seam.
  • Such container is often called an easy opening container.
  • the PAL container requires a tool for getting access to the content of the container.
  • the PAL container is optimally reclosable and is of high safety against unwanted additions to the container content.
  • the manufacturing costs of the PAL container are relatively high.
  • the PALOS container also requires a tool for breaking the foil and getting access to the container content.
  • the PALOS container is less optimally reclosable but has the same safety properties. Manufacturing costs are even higher than those of the PAL container.
  • the container has the optimal properties for opening by tearing off the foil using the foil tab.
  • the container is only reclosable by using the additional plastic cap overdosing the ring and connected to the body seam. Safety is reduces but manufacturing costs are relatively low.
  • the present invention has for its object to provide a container which has optimal opening properties similar to those of the pealable closure container. Furthermore, reclosability should be optimal and manufacturing costs relatively low.
  • the invention provides such a container which comprises : - a body provided with a ring determining an opening ;
  • the gist of the invention resides in the formation of a preset comprising the ring and the lid and the foil being interposed between the ring and the lid which have a mutual resilient connection and thereby resiliently maintaining the foil between ring and lid.
  • the foil is provided with sealing material such that by application of heat the foil is adhered to the ring while being present and resiliently pressed in placed between the lid and ring.
  • foil material and thinner foil such as less than lOO ⁇ m, in particular 70 ⁇ m
  • the foil is no longer seamed in between the ring curl and the body curl .
  • less foil material is required due to the smaller diameter.
  • a material reduction is estimated to about 10%.
  • the ring and lid could be made of thinner material for reasons that in the resilient connection material sizes are less critical.
  • the foil is maintained in the preset between ring and lid and this preset could be subjected to the heat treatment using an oven. Accordingly, it is not required to use a particular sealing apparatus comprising sealing means which only temporarily contact ring and/or lid in a position where the foil is to be adhered to the ring by- application of heat. Accordingly, the production rate may ⁇ be increased while using standard equipment.
  • the resilient connection has a contact area which is at an angle of 45- 100°, preferably 45-90°, more preferably 75-90° with the axial direction of the container. Selecting the contact area within the range of 45-100°, preferably within 45- 90° and more preferably between 75-90° with the (horizontal) plane defined by the ring results in less force required for removing the lid out of the resilient connection. For reasons that only a force slightly higher than the friction force is to be applied. Larger the contact angles will result in a lower fraction of the normal force for the resilient connection to be compensated. At an angle of 90° the normal force of the resilient connection in a direction of releasing the lid from the ring is very low if present at all.
  • the resilient force required for the resilient connection may originate from the lid part or from the ring part, or from both parts.
  • both parts are resilient such that the sizes and measures of these parts are less critical.
  • the resilient property in the resilient part of the lid and/or ring is obtained by deforming these parts to 0.2% of their yield point.
  • the resilient connection has a surface pressure within the range of 600-1300N/cm 2 , preferably 700-1200N/cm 2 . Accordingly, under practical conditions the resilient connection complies with the manufacturing, handling and user requirements and an undesired release of the lid from the ring is substantially avoided.
  • the lid resides within the ring opening such that in outward radial direction the lid is in the inner position and the ring is in the outer position and the foil inserted there between.
  • the lid closes over the ring opening. Accordingly, in outward radial direction the ring part connected to the foil is at the inner position and the corresponding lid part in the outer position having the foil inserted in between.
  • Another aspect of the invention relates to a set comprising a ring, a foil adhered to the ring and closing the opening, and a lid covering the foil and connected to the ring, wherein the ring and the lid are resiliently connected and the foil is adhered to the ring in the resilient connection between the ring and the lid.
  • Another aspect of the present invention relates to a preset formed by a ring and a lid having resiliently connected the foil between the ring and the lid.
  • the present invention relates to a method for producing a set comprising the steps of: i) forming a preset by resiliently connecting the foil between the ring and the lid; and ii) subjecting the preset to a heat treatment for adhering the foil to the ring.
  • the invention is based on the insight that a preset could be formed by inserting the foil in between the ring and the lid using a resilient connection. It is this preset that could be subsequently subjected to a heat treatment (preferably at a heat treatment temperature of in between 90-150° dependent on the sealing material used) . Accordingly, no additional equipment or tools are required for maintaining the preset during the application of heat for a minimum amount of time for adhering the foil to the ring.
  • the foil when forming the preset, may be first mounted on the ring or first mounted on the lid and subsequently apply the lid or the ring respectively and form the resilient connection.
  • the foil In mounting the foil it might be that the foil remains on the ring or lid due to gravitation forces. If not applicable then the foil could be mounted using clamping force and/or magnetic force.
  • Figure 1 shows a container according to the invention
  • Figures 2, 3 and 4 illustrate production steps for producing a set according to the invention
  • Figure 5 shows at a larger scale detail V of figure 4 ;
  • Figure 6 shows at a larger scale detail VI of figure 5;
  • Figures 7, 8 and 9 show in cross-section other manufacturing steps for producing another set according to the invention.
  • Figures 10, 11 and 12 show an alternative to the production steps shown in figures 7-9.
  • Figure 1 shows a container 1 according to the invention.
  • the container comprises a body 2 and a ring 3 which is seamed to the body 2.
  • a foil 4 is adhered to the ring and comprises a tab 5 for removing the foil 4 and making the content of the container 1 available via an opening determined by the ring 3.
  • the container 1 further comprises a lid 6 which (if present) covers the foil and is connected to the ring 3.
  • Figures 2-4 illustrate a method for producing a set 7 comprising a ring 3, a foil 4 and a lid 6.
  • the ring 3 comprises a curl 8 for being connected to the container body 2 via a seam.
  • the ring 3 further comprises a wall 9 connected via a horizontal wall 10 to a curved and downwardly directed ring part 11. This ring part 11 has resilient properties when urged into a radially outward direction.
  • the foil 4 is cup shaped having a central panel 12 and an upright edge 13.
  • the lid 6 has a central lid panel 14 and an upright wall 15.
  • the metal foil 4 is mounted on the lid 6 and maintained on the lid 6 using a magnet 16.
  • Figure 5 shows more in detail the set 7 comprising the ring 3, the lid 6 and the foil 4 which is at an resilient connection 22 in between the ring part 11 and the lid wall 15.
  • the foil 14 is adhered to the ring part 11 via the seem material 23.
  • the compression force is in the direction of the arrow 24 whereas the direction of releasing the lid 6 from the ring 3 is in the direction of the arrow 25 and experiences only the friction force and not the resilient compression force.
  • Figures 7, 8 and 9 show another method according to the invention for producing a set according to the invention.
  • Figure 7 shows another ring 26 which has a resilient and bended ring part 27 which is in figure 7 in a slanted position.
  • the foil 28 has an edge 29 which is in a similarly slanted position as the ring part 27.
  • the lid 30 also comprises a lid wall 31 having a similarly slanted orientation.
  • the foil 28 is mounted on the lid 30 with the foil edge 29 and lid wall 31 closely fitting to one another.
  • the ring 26 is pressed onto the combination of lid 30 and foil 28. This results in a preset 33 shown in figure 9.
  • the lid wall 31 and the ring part 27 are resilient thereby forming a resilient connection between the ring 26 and the lid 30 with the foil 28 pressed in between.
  • the edge 29, the lid wall 31 and the ring part 27 have a corresponding slanted position which means that the angle alpha between a plane 36 through the contact area and a horizontal plane of the ring 26 is at about 60°.
  • Figures 10, 11 and 12 show the manufacturing steps of a preset 38 which after heat treatment results in a set 39 according to the invention.
  • the ring 40 comprises an upright part 41 for receiving a foil 42 which has a downwardly directed edge 43.
  • the foil 42 is laid onto the ring 40.
  • a preset 38 is formed by applying a lid 44 having a resilient and curved circumferential edge 45 on the ring.
  • the lid 44 is applied following the direction of the arrow 46.
  • the lid 44 is overdosing the foil 42 and the ring part 41.
  • Formed is a resilient connection 47.
  • In an oven heat 19 is applied thereby seaming the foil 42 via seaming material 48 to the ring 40.
  • the container and the ring according to the invention may be made of any suitable metal material, such as plated iron.
  • the foil may be made of any suitable metal foil, preferably aluminum foil which is coated conventionally and if needed coated with seaming material for seaming the foil to the ring.
  • the lid may preferably made of metal material but a plastic material is also possible whenever the plastic is indifferent to the heat application for forming the seam in between the foil and the ring.
  • the lid and the ring with the interposed foil form a resilient connection before and in particular during the application of heat for forming the seam connection between the foil and the ring.
  • the ring part 11, 27 and 41 may- have the illustrated form which will provide a contact surface with the foil and closure.
  • the ring part may have the form of a curl .
  • This form is more rigid and will have a substantially line contact with the foil and closure. Still a resilient connection and a practical airtight closure obtained.
  • the container may be made of any conventional diameter and form.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Closing Of Containers (AREA)
  • Package Closures (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
  • Table Devices Or Equipment (AREA)

Abstract

The invention relates to a container (1), comprising : a body (2) provided with a ring (3) determining an opening; a foil (4) adhered to the ring and closing the opening; and a lid (6) covering the foil and connected to the ring, wherein the ring and the lid are resiliently connected and the foil is adhered to the ring in the resilient connection between the ring and the lid, to a set comprising a ring, a foil adhered to the ring and closing the opening, and a lid covering the foil and connected to the ring, wherein the ring and the lid are resiliently connected ' and, the foil is adhered to the ring in the resilient connection between the ring and the lid, and to a preset therefor and to its manufacturing method.

Description

CONTAINER, SET COMPRISING A RING, A FOIL AND A LID, A PRESET THEREFOR, AND A METHOD FOR PRODUCING THE SET FOR THE CONTAINER
The present invention relates to a container comprising a body provided with a ring, a foil adhered to the ring and a lid covering the foil. The invention further relates to a set comprising the ring, the foil and the lid, wherein the foil is adhered to the ring, to a preset comprising the body, the foil and the lid and wherein the foil is not yet adhered to the ring, and finally to a method for producing the set comprising the ring, the lid and the foil adhered to the ring.
Containers according to the present invention should have an optimal airtight closure due to their content and to their use under conditions which when in open contact with the container content results in a accelerated degradation of the content. Therefore the body is provided with a ring determining an opening and this opening is closed of by a foil adhered to the container. The foil may be pealed of using a foil tab. The container is furthermore provided with a metal lid covering the foil. Accordingly, the lid protects the foil against undesired breakage. However, the container is furthermore tamper proof and reduces a risk for unwanted additions to the content of the container.
One type of such containers comprises a foil which is seamed into the seam formed between a ring curl and a curl of the container body. Such type of container is called a PAL container.
Another type of container comprises a pealable foil which is sealed to an horizontal ring part. The lid closes over the foil and onto the ring and is often provided with arresting means (a circumferential bead or dimples) avoiding an undesired release of the lid from the ring. Such container is often called a PALOS container.
Another type of container comprises a pealable foil which is sealed to the ring and a plastic lid or cap overdoses foil and ring and is connected to the container seam. Such container is often called an easy opening container.
It will be appreciated that the PAL container requires a tool for getting access to the content of the container. The PAL container is optimally reclosable and is of high safety against unwanted additions to the container content. However, the manufacturing costs of the PAL container are relatively high.
The PALOS container also requires a tool for breaking the foil and getting access to the container content. The PALOS container is less optimally reclosable but has the same safety properties. Manufacturing costs are even higher than those of the PAL container.
The container has the optimal properties for opening by tearing off the foil using the foil tab. The container is only reclosable by using the additional plastic cap overdosing the ring and connected to the body seam. Safety is reduces but manufacturing costs are relatively low.
The present invention has for its object to provide a container which has optimal opening properties similar to those of the pealable closure container. Furthermore, reclosability should be optimal and manufacturing costs relatively low.
The invention provides such a container which comprises : - a body provided with a ring determining an opening ;
- a foil adhered to the ring and closing the opening ; and - a lid covering the foil and connected to the ring, wherein the ring and the lid are resiliently connected and the foil is adhered to the ring in the resilient connection between the ring and the lid. The gist of the invention resides in the formation of a preset comprising the ring and the lid and the foil being interposed between the ring and the lid which have a mutual resilient connection and thereby resiliently maintaining the foil between ring and lid. The foil is provided with sealing material such that by application of heat the foil is adhered to the ring while being present and resiliently pressed in placed between the lid and ring.
Accordingly, less foil material and thinner foil (such as less than lOOμm, in particular 70μm) for reasons that in view of the PALOS container the foil is no longer seamed in between the ring curl and the body curl . At the same time less foil material is required due to the smaller diameter. A material reduction is estimated to about 10%.
Furthermore, the ring and lid could be made of thinner material for reasons that in the resilient connection material sizes are less critical. Finally, due to the resilient connection between ring and lid, the foil is maintained in the preset between ring and lid and this preset could be subjected to the heat treatment using an oven. Accordingly, it is not required to use a particular sealing apparatus comprising sealing means which only temporarily contact ring and/or lid in a position where the foil is to be adhered to the ring by- application of heat. Accordingly, the production rate may¬ be increased while using standard equipment.
According to a preferred embodiment the resilient connection has a contact area which is at an angle of 45- 100°, preferably 45-90°, more preferably 75-90° with the axial direction of the container. Selecting the contact area within the range of 45-100°, preferably within 45- 90° and more preferably between 75-90° with the (horizontal) plane defined by the ring results in less force required for removing the lid out of the resilient connection. For reasons that only a force slightly higher than the friction force is to be applied. Larger the contact angles will result in a lower fraction of the normal force for the resilient connection to be compensated. At an angle of 90° the normal force of the resilient connection in a direction of releasing the lid from the ring is very low if present at all. Under those circumstances it is only the friction force which is experienced by the consumer when removing the lid from the ring. The resilient force required for the resilient connection may originate from the lid part or from the ring part, or from both parts. Preferably both parts are resilient such that the sizes and measures of these parts are less critical.
The resilient property in the resilient part of the lid and/or ring is obtained by deforming these parts to 0.2% of their yield point.
For optimally maintaining the foil between the ring and the lid it is preferred that the resilient connection has a surface pressure within the range of 600-1300N/cm2, preferably 700-1200N/cm2. Accordingly, under practical conditions the resilient connection complies with the manufacturing, handling and user requirements and an undesired release of the lid from the ring is substantially avoided.
Within one embodiment according to the present invention the lid resides within the ring opening such that in outward radial direction the lid is in the inner position and the ring is in the outer position and the foil inserted there between.
According to another embodiment the lid closes over the ring opening. Accordingly, in outward radial direction the ring part connected to the foil is at the inner position and the corresponding lid part in the outer position having the foil inserted in between.
Another aspect of the invention relates to a set comprising a ring, a foil adhered to the ring and closing the opening, and a lid covering the foil and connected to the ring, wherein the ring and the lid are resiliently connected and the foil is adhered to the ring in the resilient connection between the ring and the lid.
Another aspect of the present invention relates to a preset formed by a ring and a lid having resiliently connected the foil between the ring and the lid.
Finally, the present invention relates to a method for producing a set comprising the steps of: i) forming a preset by resiliently connecting the foil between the ring and the lid; and ii) subjecting the preset to a heat treatment for adhering the foil to the ring.
Stated above the invention is based on the insight that a preset could be formed by inserting the foil in between the ring and the lid using a resilient connection. It is this preset that could be subsequently subjected to a heat treatment (preferably at a heat treatment temperature of in between 90-150° dependent on the sealing material used) . Accordingly, no additional equipment or tools are required for maintaining the preset during the application of heat for a minimum amount of time for adhering the foil to the ring.
Obviously, when forming the preset, the foil may be first mounted on the ring or first mounted on the lid and subsequently apply the lid or the ring respectively and form the resilient connection.
In mounting the foil it might be that the foil remains on the ring or lid due to gravitation forces. If not applicable then the foil could be mounted using clamping force and/or magnetic force.
Mentioned and other features of the set, preset, container and its method of production will be further explained and illustrated by reference to several embodiments which are only given for illustrative purposes and are not intended to limit the present invention to any extent. In the description reference will be made to the figures wherein:
Figure 1 shows a container according to the invention;
Figures 2, 3 and 4 illustrate production steps for producing a set according to the invention;
Figure 5 shows at a larger scale detail V of figure 4 ; Figure 6 shows at a larger scale detail VI of figure 5;
Figures 7, 8 and 9 show in cross-section other manufacturing steps for producing another set according to the invention; and Figures 10, 11 and 12 show an alternative to the production steps shown in figures 7-9.
Figure 1 shows a container 1 according to the invention. The container comprises a body 2 and a ring 3 which is seamed to the body 2. A foil 4 is adhered to the ring and comprises a tab 5 for removing the foil 4 and making the content of the container 1 available via an opening determined by the ring 3. The container 1 further comprises a lid 6 which (if present) covers the foil and is connected to the ring 3.
Figures 2-4 illustrate a method for producing a set 7 comprising a ring 3, a foil 4 and a lid 6.
The ring 3 comprises a curl 8 for being connected to the container body 2 via a seam. The ring 3 further comprises a wall 9 connected via a horizontal wall 10 to a curved and downwardly directed ring part 11. This ring part 11 has resilient properties when urged into a radially outward direction.
The foil 4 is cup shaped having a central panel 12 and an upright edge 13.
The lid 6 has a central lid panel 14 and an upright wall 15.
As shown in figure 2 the metal foil 4 is mounted on the lid 6 and maintained on the lid 6 using a magnet 16.
Subsequently following the direction of the arrow 17 the lid 6 having mounted thereon the foil 4 is pressed into the ring 3 thereby forming a resilient connection in between the resilient ring part 11 and the slightly resilient wall 15 while the foil 4 with the upright edge 13 is interposed and clamped between. This preset 18 comprising the ring 3 and the lid 16 with resiliently connected in between the foil 4, is subsequently subjected to a heat treatment using heat 19. Thereby seaming the foil to the ring 3 for reasons that the upright edge 13 at its outer surface 20 and/or the inner surface 21 of the ring part 11 is provided with seam material. It is noted that the heat treatment may be carried out in an oven at a increased temperature such as 130°, or may be subjected to other heat treatments using other types of radiation.
Figure 5 shows more in detail the set 7 comprising the ring 3, the lid 6 and the foil 4 which is at an resilient connection 22 in between the ring part 11 and the lid wall 15. As better illustrated in figure 6 it is shown that the foil 14 is adhered to the ring part 11 via the seem material 23. Clearly the compression force is in the direction of the arrow 24 whereas the direction of releasing the lid 6 from the ring 3 is in the direction of the arrow 25 and experiences only the friction force and not the resilient compression force.
Figures 7, 8 and 9 show another method according to the invention for producing a set according to the invention.
Figure 7 shows another ring 26 which has a resilient and bended ring part 27 which is in figure 7 in a slanted position. The foil 28 has an edge 29 which is in a similarly slanted position as the ring part 27. The lid 30 also comprises a lid wall 31 having a similarly slanted orientation. As shown in figure 8 the foil 28 is mounted on the lid 30 with the foil edge 29 and lid wall 31 closely fitting to one another. Subsequently following the arrows 32 the ring 26 is pressed onto the combination of lid 30 and foil 28. This results in a preset 33 shown in figure 9. Obviously the lid wall 31 and the ring part 27 are resilient thereby forming a resilient connection between the ring 26 and the lid 30 with the foil 28 pressed in between. Application of heat 19 results in a seaming of the foil 28 to the ring part 27 by seam material applied to contact surfaces of the foil edge 29 and/or the ring part 27. Thereby forming the set 35 comprising the ring 26 with adhered thereto the foil 28 which is closed off by the lid 30 which is in a resilient connection with the ring 26.
The edge 29, the lid wall 31 and the ring part 27 have a corresponding slanted position which means that the angle alpha between a plane 36 through the contact area and a horizontal plane of the ring 26 is at about 60°.
Figures 10, 11 and 12 show the manufacturing steps of a preset 38 which after heat treatment results in a set 39 according to the invention.
The ring 40 comprises an upright part 41 for receiving a foil 42 which has a downwardly directed edge 43. The foil 42 is laid onto the ring 40. A preset 38 is formed by applying a lid 44 having a resilient and curved circumferential edge 45 on the ring. The lid 44 is applied following the direction of the arrow 46. The lid 44 is overdosing the foil 42 and the ring part 41. Formed is a resilient connection 47. In an oven heat 19 is applied thereby seaming the foil 42 via seaming material 48 to the ring 40.
It will be appreciated that the container and the ring according to the invention may be made of any suitable metal material, such as plated iron. The foil may be made of any suitable metal foil, preferably aluminum foil which is coated conventionally and if needed coated with seaming material for seaming the foil to the ring.
Similarly the lid may preferably made of metal material but a plastic material is also possible whenever the plastic is indifferent to the heat application for forming the seam in between the foil and the ring. Relevant according to the invention is that the lid and the ring with the interposed foil form a resilient connection before and in particular during the application of heat for forming the seam connection between the foil and the ring.
It is noted that the ring part 11, 27 and 41 may- have the illustrated form which will provide a contact surface with the foil and closure. However, the ring part may have the form of a curl . This form is more rigid and will have a substantially line contact with the foil and closure. Still a resilient connection and a practical airtight closure obtained. Furthermore, the container may be made of any conventional diameter and form.

Claims

1. Container, comprising:
- a body provided with a ring determining an opening;
- a foil adhered to the ring and closing the opening; and - a lid covering the foil and connected to the ring, wherein the ring and the lid are resiliently connected and the foil is adhered to the ring in the resilient connection between the ring and the lid.
2. Container according to claim 1, wherein the resilient connection has a contact area which is at an angle of 45-100° , preferably 45-90° , more preferably 75- 90° with the horizontal plane defined by the ring.
3. Container according to claim 1 or 2, wherein the resilient connection is formed by a lid part and a ring part of which parts at least one part is resilient.
4. Container according to claim 3, wherein the lid part and the ring part are both resilient.
5. Container according to claim 3 or 4, wherein the resilient part is resiliently deformed to 0.2% of the yield point .
6. Container according to claim 1-5, wherein in the resilient connection the surface pressure is within the range of 600-1300N/cm2, preferably 700-1200N/cm2.
7. Container according to claim 1-6, wherein the lid resides within the ring opening.
8. Container according to claim 1-6, wherein the lid closes over the ring opening.
9. Set comprising a ring, a foil adhered to the ring and closing the opening, and a lid covering the foil and connected to the ring, wherein the ring and the lid are resiliently connected and the foil is adhered to the ring in the resilient connection between the ring and the lid.
10. Method for producing a set according to claim 9, comprising the steps of: i) forming a preset by resiliently connecting the foil between the ring and the lid; and ii) subjecting the preset to a heat treatment for adhering the foil to the ring.
11. Method according to claim 10, wherein the foil is mounted on the ring.
12. Method according to claim 10, wherein the foil is mounted on the lid.
13. Method according to claim 11 or 12, wherein the foil is mounted using clamping force and/or magnetic force.
14. Method according to claim 10-13, wherein the heat treatment is carried out in an oven.
15. Preset formed by resiliently connecting the foil between the ring and the lid according to step i) of claim 10.
PCT/EP2008/002436 2007-04-18 2008-03-26 Container, set comprising a ring, a foil and a lid, a preset therefor, and a method for producing the set for the container WO2008128616A1 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
CA002684337A CA2684337A1 (en) 2007-04-18 2008-03-26 Container, set comprising a ring, a foil and a lid, a preset therefor, and a method for producing the set for the container
BRPI0810379-8A2A BRPI0810379A2 (en) 2007-04-18 2008-03-26 CONTAINER, ASSEMBLY, AND PRE-ASSEMBLY
NZ580459A NZ580459A (en) 2007-04-18 2008-03-26 A container wherin the foil seal is held in the resilient connection between the lid and the container body
US12/596,317 US20110000912A1 (en) 2007-04-18 2008-03-26 Container, Set Comprising a Ring, a Foil and a Lid, a Preset Therefor, and a Method for Producing the Set for the Container
JP2010503368A JP2010524781A (en) 2007-04-18 2008-03-26 Container, composite with ring, foil and lid, preliminary composite therefor, and method for producing composite for container
AU2008241134A AU2008241134A1 (en) 2007-04-18 2008-03-26 Container, set comprising a ring, a foil and a lid, a preset therefor, and a method for producing the set for the container
MX2009011119A MX2009011119A (en) 2007-04-18 2008-03-26 Container, set comprising a ring, a foil and a lid, a preset therefor, and a method for producing the set for the container.
EA200970965A EA017423B1 (en) 2007-04-18 2008-03-26 Container, set comprising a ring, a foil and a lid, a preset therefor, and a method for producing the set for the container
MA32347A MA31377B1 (en) 2007-04-18 2009-11-17 The contents, set are available on the ring, paper and cover, the preset set for the latter, and the total output method as the content.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP07075294A EP1982928B1 (en) 2007-04-18 2007-04-18 Set comprising a ring, a foil and a lid, a preset therefor, a method for producing a set, and a method for producing a container
EP07075294.4 2007-04-18

Publications (1)

Publication Number Publication Date
WO2008128616A1 true WO2008128616A1 (en) 2008-10-30

Family

ID=38511362

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PCT/EP2008/002436 WO2008128616A1 (en) 2007-04-18 2008-03-26 Container, set comprising a ring, a foil and a lid, a preset therefor, and a method for producing the set for the container

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Country Link
US (1) US20110000912A1 (en)
EP (1) EP1982928B1 (en)
JP (1) JP2010524781A (en)
KR (1) KR20100016292A (en)
CN (1) CN101663210A (en)
AT (1) ATE493343T1 (en)
AU (1) AU2008241134A1 (en)
BR (1) BRPI0810379A2 (en)
CA (1) CA2684337A1 (en)
DE (1) DE602007011569D1 (en)
DK (1) DK1982928T3 (en)
EA (1) EA017423B1 (en)
ES (1) ES2358282T3 (en)
MA (1) MA31377B1 (en)
MX (1) MX2009011119A (en)
NZ (1) NZ580459A (en)
PL (1) PL1982928T3 (en)
PT (1) PT1982928E (en)
UA (1) UA95682C2 (en)
WO (1) WO2008128616A1 (en)

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US11305921B1 (en) * 2019-08-23 2022-04-19 Planet Canit, Llc Lever lid container with child-resistant lid release
GB2589911B (en) * 2019-12-12 2022-02-23 Crown Packaging Technology Inc Metal food cans with reclosable lids
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Also Published As

Publication number Publication date
US20110000912A1 (en) 2011-01-06
AU2008241134A1 (en) 2008-10-30
UA95682C2 (en) 2011-08-25
DE602007011569D1 (en) 2011-02-10
PL1982928T3 (en) 2011-05-31
MA31377B1 (en) 2010-05-03
DK1982928T3 (en) 2011-04-18
JP2010524781A (en) 2010-07-22
BRPI0810379A2 (en) 2014-11-11
MX2009011119A (en) 2009-11-02
PT1982928E (en) 2011-04-04
EA017423B1 (en) 2012-12-28
KR20100016292A (en) 2010-02-12
EP1982928A1 (en) 2008-10-22
CN101663210A (en) 2010-03-03
ATE493343T1 (en) 2011-01-15
CA2684337A1 (en) 2008-10-30
EP1982928B1 (en) 2010-12-29
EA200970965A1 (en) 2010-04-30
NZ580459A (en) 2013-05-31
ES2358282T3 (en) 2011-05-09

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