Special receptacle or package – Shock protection type – With distinct corner or edge protector
Patent
1997-01-24
1998-05-26
Foster, Jimmy G.
Special receptacle or package
Shock protection type
With distinct corner or edge protector
206320, B65D 8105
Patent
active
057553319
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention is concerned with improvements in or relating to packaging devices, particularly but not exclusively for use in the packaging of more or less fragile goods in a carton or similar box.
When products are packaged for storage and transit, it is necessary not only to restrain the products from undue movement within the carton, but also to protect them from damage by shock and vibration. The use of energy absorbing, resilient materials is therefore well established in industry and is conventionally known as cushion packaging.
Cushion packaging is intended to minimise the damaging effect on the packaged product being dropped, or from vibration due, for example, to the engines of the vehicle or ship in which the cartons are transported. Drop heights likely to be encountered actually increase when the weight of the carton is reasonably light compared with cartons that require even moderately robust lifting equipment. It has been found that the shock is better absorbed if the product is allowed to move through a very small distance in the carton and therefore the strength of the energy absorbing materials must be balanced against the required degree of resilience.
The use of preformed inserts of expanded plastics bead material has been found to give good results in a wide variety of applications, but it is commonly found that larger sized inserts are used for the sake of apparent security for the product than are actually necessary under most conditions. Such over-use of plastics materials is to be avoided where possible on environmental grounds as well as those of cost and handling.
SUMMARY OF THE INVENTION
The present invention sets out, therefore, to minimise the volume of resilient packaging inserts of plastics material for use in cartons, cases, boxes or the like.
The invention provides a packaging insert device for use as an insert within a carton or the like wherein the insert is adapted to support a product within said carton out of contact with interior surfaces of walls of said carton, said device comprising a panel member having at least one aperture formed therein, and a spacer device of stiffly resilient material and provided with at least one protuberance, the or each protuberance being adapted to be received in said aperture(s) so as to project beyond the panel member.
Advantageously, there may be provided at least two of said apertures formed in the panel member, a second aperture being formed in close positional relationship to the first aperture, said spacer device having a plurality of protuberances adapted to be received in respective ones of said apertures.
Preferably, said panel member further may comprise a flange formed at least partially along one edge thereof and extending at least substantially at right angles to the panel member, said panel member having said first aperture formed in a marginal portion thereof adjacent said flange and said second aperture formed in the flange in close relationship to the first aperture.
Alternatively, said panel member may comprise two flanges, said first aperture being formed in one of said flanges and said second aperture being formed in said second flange in close relationship to the first aperture.
Conveniently, said spacer device may comprise two plate members each joined to a neighbouring plate at adjacent edges. Said plates may be mutually perpendicular, or substantially perpendicular to each other and, being joined at adjacent edges thereof, provide the spacer member with an L-shaped cross-section, outer surfaces of said plate members being provided with said protuberances which are adapted to be received in said first and second apertures respectively so as to project beyond said flanged panel member.
Preferably, said protuberances may be provided with locking or wedge surfaces arranged to prevent unintentional withdrawal from the apertures.
In some circumstances, it may be preferable to provide a single plate member having at least two protuberances, for use in bridging end portions of an elongate p
REFERENCES:
patent: 3701465 (1972-10-01), Richter
patent: 4287265 (1981-09-01), McKnight
patent: 5339958 (1994-08-01), Taravella et al.
A. & W. Fullarton Limited
Foster Jimmy G.
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