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
  • B65D43/0204—Removable lids or covers without integral tamper element secured by snapping over beads or projections
  • B65D43/021—Removable lids or covers without integral tamper element secured by snapping over beads or projections only on the inside, or a part turned to the inside, of the 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
  • B65D2543/00018—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
  • B65D2543/00296—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
  • B65D2543/00342—Central part of the lid
  • B65D2543/0037—Flexible or deformable
• • 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
  • B65D2543/00546—NO contact
• • 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
  • B65D2543/00592—Snapping means
  • B65D2543/00601—Snapping means on the container
  • B65D2543/00611—Profiles
  • B65D2543/00629—Massive bead
• • 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
  • B65D2543/00592—Snapping means
  • B65D2543/00601—Snapping means on the container
  • B65D2543/00675—Periphery concerned
  • B65D2543/00685—Totality
• • 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
  • B65D2543/00592—Snapping means
  • B65D2543/00712—Snapping means on the lid
  • B65D2543/00722—Profiles
  • B65D2543/0074—Massive bead
• • 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
  • B65D2543/00592—Snapping means
  • B65D2543/00712—Snapping means on the lid
  • B65D2543/00787—Periphery concerned
  • B65D2543/00796—Totality

Definitions

• the invention relates to a plastic lid of the kind pre ⁇ sented in the preamble to claim 1.
• containers with matching lids in plastic for example as presented in applicant's previous international patent application no. PCT/DK88/00011 (WO 88/05751), may advantageously be de ⁇ signed differently than presented, whereby further ad ⁇ vantages are achieved, without reducing the advantages and qualities as already presented in the international application.
• the lid according to the invention is designed as presented and characterized in claim 2, the load from any possible overpressure will be evenly distributed on the underside of the lid, so that the increase of the diameter is even all along the edge of the ring insert. It is thus rendered possible that the lid will remain firmly mounted in the container, even at very high over ⁇ pressures. This design moreover helps reducing the power needed for mounting the lid.
• the above increased advan ⁇ tages of the lid depend on the type of curvature applied for making the central part of the lid concave.
• fig. 1 shows the upper part of a container with a lid according to the invention, partly as a side view and partly as a sectional view,
• fig. 2 shows a section as in fig. 1, but on a larger scale
• fig. 3 shows how the lid according to the invention reacts to pressure applied on the side of the container.
• Figs. 1 and 2 of the drawing show the upper part of a con- tainer with a lid according to the invention.
• the container
• 1 has a substantially cylindrical wall 4 with two internal, annual rims 5, 6 placed close to the opening and arranged to secure a ring insert 3 which by means of two ring walls 12, 13 defines an annual cavity 7 against the wall 4 of the container.
• the ring insert 3 has annual sealing surfaces 19, 20, in that the diameter of the sealing surface 19, which is the closer to the container opening, is smaller than that of the sealing surface 20, which results in an annual rimlike edge.
• the lid 2 has a central part 11 which gradually becomes a substantially axial part 10 which in turn becomes a sub ⁇ stantially radial part 9, in that all the lid parts are injection moulded in one piece in plastic.
• the lid 2 has a bevelling 18 for the outer edge of the lid to be able to rest on the upper edge of the uppermost rim 5, so that the upper edge of the rim 8 is flush with the upper edge of the radial lid part 9. This results in a plane area on top of the container lid and the container, which allows stacking of containers with a lid.
• the lid 2 has a radially extending annual rim 21 which is arranged to engage with the ring insert 3 as shown, so that a small annual tole ⁇ rance 16 appears between the sealing surfaces of the ring insert 3, which tolerance compensates for production tole- ranees etc.
• the lid 2 is provided with annual sealing sur ⁇ faces 14, 15 opposite the sealing surface 19, 20 of the ring insert 3.
• the central part 11 of the lid curves downwards so that it is concave and mainly below a plane (see the dot-and-dash line 17) through the rim 21. It is hereby achieved that any overpressure applied and attempting to press the lid part 11 upwards will result in the diameter of the annual rim 21 increasing, whereby the lid becomes even more firmly moun ⁇ ted.
• Fig. 3 shows how overpressure may arise inside the contai ⁇ ner.
• a container may be affect ⁇ ed by the pressures P of the neighbouring container. Due to the particular lid design this will result in a downward- directed force which will attempt to press the lid further down into the container, while at the same time a vertical upward-directed force, which occurs because of the over ⁇ pressure in the container, will attempt to make the lid burst off.
• Tests have established that provided the lid is designed as described in the present application, the re ⁇ sulting force F will become downward-directed and the lid will become slightly deformed as shown with the dot-and- dash line.
• the lid will not burst off, even if it is exposed to strong forces, like for example lateral forces, which result in high overpressure in the container. If the lateral forces P affect the container further down, so that the lid is not directly deformed by these forces, overpressure will occur inside the container anyhow. How ⁇ ever, not even this will cause the lid to burst off, since the overpressure will affect the concave lid part 11 and attempt to press it upwards. Hereby the diameter of the rim 21 is increased; the lid becomes even more firmly mounted and will only burst off if exposed to extraordinary over ⁇ pressures.

Landscapes

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

Applications Claiming Priority (2)

Publications (1)

Family

ID=8119852

Family Applications (1)

Country Status (5)

Families Citing this family (2)

Family Cites Families (7)

• 1989
  • 1989-06-26 DK DK316789A patent/DK162156C/da not_active IP Right Cessation
• 1990
  • 1990-06-08 WO PCT/DK1990/000142 patent/WO1991000224A1/en not_active Application Discontinuation
  • 1990-06-08 EP EP19900910603 patent/EP0479869A1/en not_active Withdrawn
  • 1990-06-08 AU AU59651/90A patent/AU5965190A/en not_active Abandoned
• 1991
  • 1991-12-20 FI FI916089A patent/FI916089A0/fi not_active Application Discontinuation

Non-Patent Citations (1)

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