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Sheet packaging apparatus

a technology of packaging apparatus and sheets, which is applied in the direction of packaging goods, tray containers, containers, etc., can solve the problems of difficult to accurately cut the connecting members, lack of versatility to use packs of different thicknesses, and difficult to use packaging of each corner of the pack

Inactive Publication Date: 2007-02-22
BURCHELL PAUL CHRISTOPHER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, while this proposal can be used to good effect in the packaging of a pack of glass sheets of known and constant thickness, it lacks the versatility to be used with packs of different thickness.
Although versatile, this proposal has the disadvantage that the packaging of each corner of the pack requires three separate components.
In practice, it has been found that it is difficult to cut the connecting members sufficiently accurately.

Method used

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Embodiment Construction

[0026] As described hereunder the invention is concerned with the packaging of a stack of glass sheets arranged in a polygonal, in this case rectangular, pack 10.

[0027] Reference is made firstly to FIGS. 5, 6 and 7 which illustrate a single packaging member 12 of a corner packaging device 14, one such corner packaging device 14 being provided for each corner of the pack 10. The packaging member 12 is moulded in one piece of a suitably robust plastics material and includes a generally triangular facing element 16 having a ribbed inner surface 18 and a flat outer surface 20. The member 12 also includes a pair of generally planar flanges 22 which meet one another at a corner 24 of the facing element and which extend transversely to the facing element.

[0028] As shown in FIG. 8, each flange has an inner edge 26. Extending beyond this edge, in the plane of the flange, is a projection 28. Spaced from the projection 28 is a recess 30 which extends into the flange from the inner edge 26. T...

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Abstract

A first aspect of the invention concerns a corner packaging device (14) which can be used in the packaging of a polygonal pack (10) of stacked glass sheets. The device includes two identical packaging members (12) each having a facing element (16) to lie against an outer surface of the pack at a corner and a pair of transverse flanges (22) meeting one another at a corner (24) of the facing element so as in use to lie against adjacent edges of the pack. There is a projection (28) lying generally in the plane of each flange and extending beyond the inner edge (26) of the flange and a recess (30) extending into the flange from that inner edge. With this arrangement, the packaging members can be arranged with their facing elements lying against opposite surfaces of the pack, with their flanges extending towards one another and with the projection of one flange extending over an edge of the pack to be received slidably within the recess of the other flange over a range of different pack thicknesses. Each flange also carries a projecting sling attachment formation (44) beneath which a lifting sling (46) can be engaged for the purposes of lifting the pack at an upright attitude when the devices embrace the corners of the pack and are anchored in position by straps (40, 42) encircling the devices and the pack to hold the pack together. Other aspects of the invention relate to a packaging system incorporating such devices (14) and the individual packaging members (12).

Description

BACKGROUND TO THE INVENTION [0001] THIS invention relates to sheet packaging apparatus. [0002] In one application, the apparatus of the invention is specifically designed for use in the packaging of glass sheets arranged in a stack. For many years, packs of stacked glass sheets were packaged in timber frames, but in more recent times this type of packaging has been rejected in view of environmental considerations. [0003] One packaging system which could be used in place of conventional timber packaging systems is described in ZA 2000 / 0364. This system makes use of moulded plastic corner packaging elements arranged to embrace the corners of the stack. However, while this proposal can be used to good effect in the packaging of a pack of glass sheets of known and constant thickness, it lacks the versatility to be used with packs of different thickness. [0004] Another proposal is the so-called U-pack system described in U.S. Pat. No. 6,478,354. This proposal makes use of corner members ...

Claims

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Application Information

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IPC IPC(8): B65D85/48B65D85/30B65D81/05
CPCB65D81/057B65D2581/055B65D85/48
Inventor BURCHELL, SHAUN
Owner BURCHELL PAUL CHRISTOPHER
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