EP0949153A1 - Paperboard tube with tamper evident closure - Google Patents
Paperboard tube with tamper evident closure Download PDFInfo
- Publication number
- EP0949153A1 EP0949153A1 EP99302729A EP99302729A EP0949153A1 EP 0949153 A1 EP0949153 A1 EP 0949153A1 EP 99302729 A EP99302729 A EP 99302729A EP 99302729 A EP99302729 A EP 99302729A EP 0949153 A1 EP0949153 A1 EP 0949153A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tamper evident
- mouth
- lid
- packaging container
- container
- 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- Withdrawn
Links
Images
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
- B65D3/00—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines
- B65D3/02—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines characterised by shape
-
- 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
- B65D3/00—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines
- B65D3/28—Other details of walls
-
- 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
- B65D55/00—Accessories for container closures not otherwise provided for
- B65D55/02—Locking devices; Means for discouraging or indicating unauthorised opening or removal of closure
- B65D55/06—Deformable or tearable wires, strings, or strips; Use of seals, e.g. destructible locking pins
- B65D55/08—Annular elements encircling container necks
- B65D55/0818—Destructible or permanently removable bands, e.g. adhesive
- B65D55/0854—Shrink-film bands
-
- 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
- B65D2543/00296—Plastic
-
- 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
-
- 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
- This invention relates to tamper evident packaging, and more particularly to a tamper evident packaging container in which the body of the container is formed by a cylindrical tube, for example a paperboard tube.
- Packaging containers having a body formed by a paperboard tube are well known and are extensively used for the retail sale of food ingredients.
- such containers have a right-circular cylindrical paperboard tube body which is closed at the lower end thereof by a suitable base.
- a moulded plastics lid is push-fitted into the mouth formed by the curl to close the container.
- Such lids are readily removable and replaceable so that the contents of the container can be used over a significant period, and the container re-sealed between uses.
- the external diameter of the container is substantially constant over the entire height of the container.
- the inward curl forms a mouth which has a diameter less than the external diameter of the container, and the lid includes a bung portion which fits within the mouth and a flange which rests on top of the curl to limit the inward movement of the lid.
- the flange has a diameter substantially equal to that of the paperboard body.
- a tamper evident packaging container comprising a tubular body having a lower end closed by a base and an upper end defining a mouth through which product may be removed from the container; and a lid which is a push-fit with the upper end of the container for closing the mouth, wherein the body exhibits, in the region of the mouth, an external bulge for retaining a tamper evident shrink sleeve which must be destroyed to remove the lid from the body.
- the body is a paperboard tube which is preferably of circular or oval cross-section.
- the paperboard tube is formed with an inward curled bead at the upper end thereof to define the mouth.
- the bead is so shaped that although it is inwardly curled, the initial transition from the uniform diameter body to the bead is in the form of an outward deformation of the body. This outward deformation provides the bulge for retaining the tamper evident sleeve.
- the lid includes a bung portion which is a push-fit within the bead and a flange portion which overlies the bead to limit the depth to which the bung portion is inserted.
- tamper evident sleeve overlies a portion of the flange.
- the container comprises a body 2 formed by a paperboard tube.
- the lower end of the body 2 will be closed by an appropriate base.
- the exact nature of the base is not relevant to the present invention.
- the upper end of the body 2 is formed with an inwardly curled bead 3 which serves a number of functions. More particularly, the bead 3 reinforces the upper end of the body and defines a mouth in which the bung portion 4 of a lid 5 may be inserted to close the container.
- the elasticity of the lid 5 and body 2, enhanced by the bead 3, mean that the lid 5 can be made a comfortably tight push-fit within the mouth in order to prevent loss of product from the container and substantially to isolate the contents of the container from the surrounding atmosphere.
- the upper surface of the bead 3 provides a stop surface against which a flange 6 of the lid engages in order to limit the inward movement of the bung 4 into the mouth.
- Containers of the type shown in Figure 1 are extensively used for the retail sale of food ingredients, for example herbs and spices.
- a tamper evident shrink sleeve 7 is shown schematically.
- shrink sleeves are well recognised in the packaging art and are applied to containers after filling in order to provide evidence that the lid of the container has subsequently been removed.
- the sleeves are shrunk into engagement with the container and cannot be removed without tearing a portion of the sleeve, which provides evidence of opening of the container. It will be noted, however, that if a shrink sleeve 7 is applied to a container illustrated in Figure 1 it will not be effective because of the substantially constant external diameter of the container.
- the paperboard of the body 2 will have a glazed external surface and accordingly by careful manipulation it will be possible to remove the lid 5 without breaking the flangeable portion of the sleeve 7, and subsequently to replace the lid 5 and re-position the skirt portion of the shrink sleeve 7 over the upper portion of the body.
- Figure 2 illustrates an embodiment of the invention.
- the body 8 of the container 9 is formed by a paperboard tube.
- the paperboard tube will be closed at the lower end by a suitable base.
- An inward curl 10 is provided at the upper end of the tube to form a mouth for receipt of a lid 5 of conventional form.
- the bead 10 is curled inwardly, the initial transition from the cylindrical external surface of the body 8 to the bead 10 is in the radially outward direction. Accordingly, the bead forms a bulge in the external surface of the body the radial extent of the bulge being determined by the profile of the bead 10.
- the bulge provides an increase in the external radius of the body by an amount A, and accordingly an increase in the external diameter of 2A.
- the container of Figure 2 is illustrated with a tamper evident shrink sleeve 11 applied to the upper end thereof.
- the lowest portion 12 of the shrink sleeve has been shrunk into contact with the normal external diameter of the body 8.
- the uppermost portion 13 of the sleeve overlies the flange 6 of the lid. Because of the bulge in the external diameter of the body provided by the bead 10 the sleeve cannot be removed from the body simply by sliding in the upward direction as viewed in Figure 3. Accordingly, the sleeve must be destroyed in order to remove the lid 5 from the container, thereby providing the required degree of tamper evidence.
- the bead profile 10 required for the purposes of the present invention can be formed by rolling an inwardly curled bead in a conventional manner and then applying a rotating former to the interior surface of the bead to apply outward force thereto. By this means, the bead may be deformed outwardly to provide the offset A required for the purposes of the present invention.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Closures For Containers (AREA)
- Details Of Rigid Or Semi-Rigid Containers (AREA)
Abstract
A tamper evident packaging container (9), particularly suitable for retail
sale of food ingredients comprises a tubular body e.g. of paperboard (8) having a
lower end closed by a base and an upper end defining a mouth through which
product may be removed from the container. A lid (5) which is a push-fit with the
upper end of the container is provided for closing the mouth. The body (8)
exhibits, in the region of the mouth, an external bulge for retaining a tamper
evident shrink sleeve (11) which must be destroyed to remove the lid from the
body. The bulge is formed by an inward curled bead (10) formed from the
material of the body.
Description
- This invention relates to tamper evident packaging, and more particularly to a tamper evident packaging container in which the body of the container is formed by a cylindrical tube, for example a paperboard tube.
- Packaging containers having a body formed by a paperboard tube are well known and are extensively used for the retail sale of food ingredients. Typically, such containers have a right-circular cylindrical paperboard tube body which is closed at the lower end thereof by a suitable base. At the upper end of the body an inward curl is formed and a moulded plastics lid is push-fitted into the mouth formed by the curl to close the container. Such lids are readily removable and replaceable so that the contents of the container can be used over a significant period, and the container re-sealed between uses.
- In conventional containers of the above type the external diameter of the container is substantially constant over the entire height of the container. The inward curl forms a mouth which has a diameter less than the external diameter of the container, and the lid includes a bung portion which fits within the mouth and a flange which rests on top of the curl to limit the inward movement of the lid. The flange has a diameter substantially equal to that of the paperboard body.
- Heretofore, no satisfactory solution exists for rendering such containers tamper evident. The containers are typically used for relatively inexpensive foodstuffs and the unit cost of the containers must accordingly be kept low. One of the most convenient methods of providing low cost tamper evidence on containers with removable lids, namely the provision of a shrink sleeve around the lid and a portion of the body, is not applicable to this type of container because of the substantially constant external diameter of the container. In the circumstances, in the past if such containers are to be rendered tamper evident relatively expensive or inconvenient solutions have been adopted.
- According to one aspect of the present invention there is provided a tamper evident packaging container comprising a tubular body having a lower end closed by a base and an upper end defining a mouth through which product may be removed from the container; and a lid which is a push-fit with the upper end of the container for closing the mouth, wherein the body exhibits, in the region of the mouth, an external bulge for retaining a tamper evident shrink sleeve which must be destroyed to remove the lid from the body.
- Preferably, the body is a paperboard tube which is preferably of circular or oval cross-section. In the preferred embodiment of the invention the paperboard tube is formed with an inward curled bead at the upper end thereof to define the mouth. The bead is so shaped that although it is inwardly curled, the initial transition from the uniform diameter body to the bead is in the form of an outward deformation of the body. This outward deformation provides the bulge for retaining the tamper evident sleeve.
- Preferably, the lid includes a bung portion which is a push-fit within the bead and a flange portion which overlies the bead to limit the depth to which the bung portion is inserted. Preferably, tamper evident sleeve overlies a portion of the flange.
- The invention will be better understood from the following description of a preferred embodiment thereof, given by way of example only, reference being had to the accompanying drawing wherein:
- Figure 1 is a schematic cross-sectional view of the upper portion of a conventional paperboard packaging container illustrating the effect of a shrink sleeve as a tamper evident device;
- Figure 2 is a cross-sectional view of a preferred embodiment of the invention; and
- Figure 3 illustrates the container of Figure 2 having a tamper evident sleeve applied thereto
-
- Throughout the drawings clearances between various components, and in particular between the lid and body on the one hand and the tamper evident sleeve on the other hand have been exaggerated in the interests of clarity. In practice, the tamper evident sleeve will be shrunk into close engagement with the lid and body.
- Referring firstly to Figure 1, the upper portion of a typical prior art packaging container 1 is shown. The container comprises a
body 2 formed by a paperboard tube. As will be appreciated by those skilled in the art, the lower end of thebody 2 will be closed by an appropriate base. The exact nature of the base is not relevant to the present invention. - The upper end of the
body 2 is formed with an inwardlycurled bead 3 which serves a number of functions. More particularly, thebead 3 reinforces the upper end of the body and defines a mouth in which thebung portion 4 of alid 5 may be inserted to close the container. The elasticity of thelid 5 andbody 2, enhanced by thebead 3, mean that thelid 5 can be made a comfortably tight push-fit within the mouth in order to prevent loss of product from the container and substantially to isolate the contents of the container from the surrounding atmosphere. The upper surface of thebead 3 provides a stop surface against which aflange 6 of the lid engages in order to limit the inward movement of thebung 4 into the mouth. Containers of the type shown in Figure 1 are extensively used for the retail sale of food ingredients, for example herbs and spices. - In Figure 1 a tamper
evident shrink sleeve 7 is shown schematically. Such shrink sleeves are well recognised in the packaging art and are applied to containers after filling in order to provide evidence that the lid of the container has subsequently been removed. The sleeves are shrunk into engagement with the container and cannot be removed without tearing a portion of the sleeve, which provides evidence of opening of the container. It will be noted, however, that if ashrink sleeve 7 is applied to a container illustrated in Figure 1 it will not be effective because of the substantially constant external diameter of the container. Typically, the paperboard of thebody 2 will have a glazed external surface and accordingly by careful manipulation it will be possible to remove thelid 5 without breaking the flangeable portion of thesleeve 7, and subsequently to replace thelid 5 and re-position the skirt portion of theshrink sleeve 7 over the upper portion of the body. A shrink sleeve accordingly does not provide satisfactory tamper evidence for a container of the type shown in Figure 1. - Figure 2 illustrates an embodiment of the invention. Again, the body 8 of the
container 9 is formed by a paperboard tube. The paperboard tube will be closed at the lower end by a suitable base. Aninward curl 10 is provided at the upper end of the tube to form a mouth for receipt of alid 5 of conventional form. It will be noted, however, that although thebead 10 is curled inwardly, the initial transition from the cylindrical external surface of the body 8 to thebead 10 is in the radially outward direction. Accordingly, the bead forms a bulge in the external surface of the body the radial extent of the bulge being determined by the profile of thebead 10. The bulge provides an increase in the external radius of the body by an amount A, and accordingly an increase in the external diameter of 2A. - In Figure 3, the container of Figure 2 is illustrated with a tamper
evident shrink sleeve 11 applied to the upper end thereof. Thelowest portion 12 of the shrink sleeve has been shrunk into contact with the normal external diameter of the body 8. Theuppermost portion 13 of the sleeve overlies theflange 6 of the lid. Because of the bulge in the external diameter of the body provided by thebead 10 the sleeve cannot be removed from the body simply by sliding in the upward direction as viewed in Figure 3. Accordingly, the sleeve must be destroyed in order to remove thelid 5 from the container, thereby providing the required degree of tamper evidence. - The
bead profile 10 required for the purposes of the present invention can be formed by rolling an inwardly curled bead in a conventional manner and then applying a rotating former to the interior surface of the bead to apply outward force thereto. By this means, the bead may be deformed outwardly to provide the offset A required for the purposes of the present invention.
Claims (8)
- A tamper evident packaging container comprising a tubular body having a lower end closed by a base and an upper end defining a mouth through which product may be removed from the container; and a lid which is a push-fit with the upper end of the container for closing the mouth, wherein the body exhibits, in the region of the mouth, an external bulge for retaining a tamper evident shrink sleeve which must be destroyed to remove the lid from the body.
- A tamper evident packaging container according to Claim 1 wherein, the body is a paperboard tube.
- A tamper evident packaging container according to Claim 2 wherein the paperboard tube is of circular or oval cross-section.
- A tamper evident packaging container according to Claim 2 or Claim 3 wherein the paperboard tube is formed with an inward curled bead at the upper end thereof to define the mouth.
- A tamper evident packaging container according to Claim 4 wherein the bead is so shaped that although it is inwardly curled, the initial transition from the uniform diameter body to the bead is in the form of an outward deformation of the body to provide said external bulge.
- A tamper evident packaging container according to any preceding claim wherein the lid includes a bung portion which is a push-fit within the mouth.
- A tamper evident packaging container according to Claim 6 wherein the lid includes a flange portion which overlies the upper end of the container to limit the depth to which the bung portion can be inserted.
- A tamper evident packaging container according to Claim 7 wherein the tamper evident sleeve overlies a portion of the flange.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9807614 | 1998-04-08 | ||
GB9807614A GB2336152A (en) | 1998-04-08 | 1998-04-08 | Tamper evident container |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0949153A1 true EP0949153A1 (en) | 1999-10-13 |
Family
ID=10830102
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99302729A Withdrawn EP0949153A1 (en) | 1998-04-08 | 1999-04-07 | Paperboard tube with tamper evident closure |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0949153A1 (en) |
GB (1) | GB2336152A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109591379A (en) * | 2018-11-27 | 2019-04-09 | 浙江新德宝机械有限公司 | The production technology of exterior buckle type paper cup covers |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE566676C (en) * | 1930-03-16 | 1932-12-22 | Reinhold Leibfarth | Paper bottle |
US3923198A (en) * | 1973-09-17 | 1975-12-02 | Minnesota Mining & Mfg | Stress-opacifiable tamper indicator |
GB1530468A (en) * | 1975-10-16 | 1978-11-01 | Metal Box Co Ltd | Containers |
GB2017042A (en) * | 1978-03-22 | 1979-10-03 | Waddingtons Ltd | Tubular containers |
GB2074124A (en) * | 1980-01-15 | 1981-10-28 | Ferry Pickering Sales Ltd | Paper tube containers |
GB2314827A (en) * | 1996-06-27 | 1998-01-14 | Robinson & Sons Ltd | Paperboard tube with beaded end |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3851812A (en) * | 1974-01-21 | 1974-12-03 | Weatherchem Corp | Force fit plastic closure |
JPS6016341B2 (en) * | 1977-03-16 | 1985-04-25 | 三菱樹脂株式会社 | heat shrinkable laminated film |
US5669549A (en) * | 1995-08-22 | 1997-09-23 | Sealright Co. Inc. | Non-round container having an offset side seam |
-
1998
- 1998-04-08 GB GB9807614A patent/GB2336152A/en not_active Withdrawn
-
1999
- 1999-04-07 EP EP99302729A patent/EP0949153A1/en not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE566676C (en) * | 1930-03-16 | 1932-12-22 | Reinhold Leibfarth | Paper bottle |
US3923198A (en) * | 1973-09-17 | 1975-12-02 | Minnesota Mining & Mfg | Stress-opacifiable tamper indicator |
GB1530468A (en) * | 1975-10-16 | 1978-11-01 | Metal Box Co Ltd | Containers |
GB2017042A (en) * | 1978-03-22 | 1979-10-03 | Waddingtons Ltd | Tubular containers |
GB2074124A (en) * | 1980-01-15 | 1981-10-28 | Ferry Pickering Sales Ltd | Paper tube containers |
GB2314827A (en) * | 1996-06-27 | 1998-01-14 | Robinson & Sons Ltd | Paperboard tube with beaded end |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109591379A (en) * | 2018-11-27 | 2019-04-09 | 浙江新德宝机械有限公司 | The production technology of exterior buckle type paper cup covers |
Also Published As
Publication number | Publication date |
---|---|
GB9807614D0 (en) | 1998-06-10 |
GB2336152A (en) | 1999-10-13 |
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