Envelopes – wrappers – and paperboard boxes – Paperboard box – With closure for an access opening
Patent
1990-12-06
1991-12-24
Marcus, Stephen
Envelopes, wrappers, and paperboard boxes
Paperboard box
With closure for an access opening
22912526, 22912532, 22911716, 220245, 220318, B65D 4322
Patent
active
050744615
DESCRIPTION:
BRIEF SUMMARY
This invention relates to containers made of cardboard, corrugated board, or similar lightweight semi-rigid sheet material, particularly but not exclusively ones of comparatively large capacity for use in the transportation and storage of goods. Such containers are frequently required to be provided with a removable or openable lid, or at least with a reinforcing whole or part frame around their open top, and the present invention is primarily directed to the provision of an improved unit for providing such a frame, with or without an associated lid.
Viewed from one aspect the invention provides a unit for fitting on the open top of a container made of cardboard, corrugated board or similar lightweight semi-rigid sheet material, said unit including securing means arranged to be located and secured in an aperture in a side wall of the container, spaced downwardly from the top thereof, to secure the unit to the container, the said securing means being arranged to close the said aperture.
With such an arrangement, the aperture in the container wall does not permit the ingress or egress of moisture, liquid or other matter, which is of substantial importance in many conditions of use.
In one form of the invention the said securing means comprises a securing member arranged to extend through the said aperture and to protrude inwardly of the container wall, and being formed as a hollow element to define an outwardly opening but inwardly closed hand hole in the container wall, which hand hole is closed off from the container interior.
Such an arrangement has the further advantage that a user's hand inserted in the said hand hole cannot come into contact with the contents of the container, which is advantageous for various reasons, for example for hygiene, or if the container contents are harmful to the skin.
Preferably the said securing member is substantially cup-shaped.
Preferably the said unit is arranged to fit over and embrace the top edge of the said container wall so as to have parts extending below such top edge both inside and outside of the wall, the said securing member being mounted to one of the said inside or outside parts of the unit and being arranged, when located in the said wall aperture as aforesaid, to make positive locking engagement with the other of the said inside and outside parts.
Viewed from another aspect the invention provides a unit for fitting on the open top of a container made of cardboard, corrugated board or similar lightweight semi-rigid sheet material, which unit is arranged to fit over and embrace the top edge of at least one side wall of the container so as to have parts extending below such top edge both inside and outside of the wall, and including at least one securing member arranged to be located and secured in an aperture in the said wall, spaced downwardly from the top edge thereof, to secure the unit to the container, the said securing member being mounted to one of the said inside or outside parts of the unit, characterised in that said securing member is arranged, when located in the said wall aperture as aforesaid, to make positive locking engagement with the other of said inside and outside parts.
Preferably the said securing member is also arranged to close the said aperture.
Preferably the said locking engagement is such that the unit, having been secured to a container as aforesaid, cannot be removed without damaging it.
Preferably the said securing member is arranged to extend through the container wall and to protrude inwardly of the wall, and is formed as a hollow element to define an outwardly opening but inwardly closed hand hole in the container wall, which hand hole is closed off from the container interior.
A unit according to the invention may comprise a whole frame, with or without an associated lid, in which case at least two of said securing members will be provided, spaced sufficiently from each other around the unit to secure the same to the container in stable fashion, preferably being located on opposite sides thereof. More than two securing me
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Parker Alan
Sams Bernard
Marcus Stephen
McDonald Christopher
Reed Packaging Limited
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