Horizontally supported planar surfaces – Industrial platform – Formed from folded semirigid material
Patent
1986-05-08
1989-05-30
Dorner, Kenneth J.
Horizontally supported planar surfaces
Industrial platform
Formed from folded semirigid material
108 511, B65D 1900
Patent
active
048340014
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to especially advantageous base members which can be used for pallets consisting of two or several base members provided with a number of holes at the upper load-bearing horizontal surface thereof or at a minor distance therefrom, through which tubes are inserted under friction so as to unite the base members to the formation of the pallet. The suitably round tubes do not require a specific fixation in the base members and are retained in their position due to the friction and the so-called drawer-effect; the friction is considerably increased under load.
The base members according to the invention can, however, also be united with each other by attaching a plane of a suitable material (board, plywood, etc.), e.g. by gluing, on the upper horizontal surfaces of the base members, in which case the above-mentioned holes are not required or are not used. This plane then forms the load-bearing plane. With the use of tubes for uniting the base members the load-bearing parts of the pallet are the upper parts of the tubes and the upper surfaces of the base members in combination. If so is desired or required in view of the nature of the goods which the pallets are intended to bear, the pallets with cross-wise tubes can be provided with one or more plates adapted to the space between the base members which form a smooth and continuous load-bearing plane.
A pallet of the type described above is described in the Pat. No. WO83/03238, which is incorporated herewith as a reference. According to the said patent it is intended to achieve a pallet which can be handled by forks from four sides, consisting of at least two base members provided with holes near the upper load-bearing surface and with recesses in the lower part, intended to receive the forks of a conventional fork lift truck, which pallet has a very low weight, is cheap, has a great flexibility as regards adaptation for different purposes, is not bulky during storage (since it can be stored in a non-assembled condition in the form of separate parts) and, if so is desired, can easily be destroyed after use by burning without formation of toxic or otherwise disturbing gases. This pallet can be handled and moved by a fork lift truck from all four sides; the forks can be introduced below the tubes from two sides and through the recesses in the base members from two sides, which is required for rational handling and storage of goods.
The present invention relates, as has been mentioned above, to especially advantageous specific forms for base members of the type in question. The base members according to the invention are, in comparison with previously known base members, extremely cheap when manufactured in great quantities and have a very low weight with a fully sufficient load capacity so as to fulfil common requirements.
According to the invention a base member for pallets is achieved, especially for pallets of the type consisting of two or several base members, optionally provided with recesses for the forks of a fork lift truck, having a number of holes perpendicularly to their length axis, distributed along and at or at a minor distance from the upper surface of the base members, through which tubes can be inserted under a small friction so as to unite the base members with each other to the formation of the pallet. The base member according to the invention is characterized in that it is built up of a pressed and folded wrapping (11), which after folding forms at least the essential outer surfaces (5, 6, 7, 12) of the base member and that stiffening inserts, a-f, 13.congruent.23, 31, 34, are present in an essential part of the internal space in the folded wrapping, also above the recesses for the forks of the fork lift truck, which inserts are bonded to the wrapping.
It is preferred that the vertical surfaces of the base member are parallel with each other and thus the inserts are then parallelepipedic and bonded to the opposite inner surfaces of the wrapping. So as to increase the diagonal stiffness of the inserts they may, whe
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Atterby Fred
Tengqvist Lennart
Voss-Schrader Bertil
Chen José V.
Dorner Kenneth J.
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