Receptacles – Sectional – Folding
Patent
1996-06-21
1997-04-22
Moy, Joseph M.
Receptacles
Sectional
Folding
220 92, 220401, 220404, B65D 8820
Patent
active
056222777
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a container device for bulk goods or liquid, comprising a frame as well as a container accommodated in the frame. A container device of this type is known. The frame provides the actual container with rigidity as well as protection against external stresses such as arise during storage and transport. Moreover, it contributes to the dimensional stability of the container, including when the latter is completely filled. The container itself is suitable for bulk goods and liquids.
In connection with environmental requirements, packaging must be suitable for re-use. In practice this means that the packaging has to be returned separately, which, especially in the case of bulk packaging, is associated with drawbacks in view of the transport volume required for this. The known container device has the drawback that, despite the fact that the container itself can be made of flexible material, the empty container device, as a consequence of the rigid frame, still has the same volume as the full device.
The aim of the invention is, therefore, to overcome this disadvantage. This is achieved in that the frame can be folded up. In particular, the frame can comprise a base section as well as at least two foldable side sections provided on opposite sides of the base section, which side sections are movable between a horizontal position and an upright position.
Moreover, the frame can have a top section which is supported some distance above the base section and foldably interacts with one of the sides. With this arrangement, the sides and the top section can be folded about hinges, the centre lines of which are parallel to one another.
The container device can be folded up compactly if the hinges of the side connected to the top section are fitted some distance above the base section, in such a way that the top section folded against said side fits between the base section and said side folded on said base section. Furthermore, the hinges of the other side can be fitted a greater distance away from the base section, in such a way that said side can be folded onto the side carrying the top section. Nevertheless, the hinges can also be positioned such that the side with the top section can be folded on top of the other side.
Base section and sides are preferably constructed of tubular material, the base section being a tube which forms a one-piece unit essentially in the form of a rectangle, two opposite sides of which are bent down close to the corners of the rectangle in such a way that the other two opposite sides are outside the plane described by the first two opposite sides. Those sides of the base section which are bent down provide an opening with respect to the floor or surface on which the base section rests. The container device can be lifted at this point by inserting the forks of a fork-lift truck in the opening.
The container device is particularly suitable for stacking in the filled state. To this end, the bottom of the base section and the tops of the sides have support points by means of which the device is stackable. The frame offers the requisite support for various container devices stacked on top of it.
However, stackability is also ensured in the folded state if the sides are hingably mounted in corner pieces which protrude above the sides and top section folded onto the base section.
According to a first possibility, the container is a sack made of flexible material, which preferably is fixed at its top edges to the top section. In order to obtain a shape which as far as possible approaches a block shape with a flexible sack of this type even when the latter is filled, the side walls of the sack are each fixed to the top section in such a way that the middle section of each wall has a lesser height than the sections located close to the comers of the sack.
The consequence of this shape is that the middle section of each side wall of the sack is subjected to higher tensile forces than the sections located closer to the comers of the sack. In this way, a corrective effect is ob
REFERENCES:
patent: 2008176 (1935-07-01), Fritsche
patent: 2332999 (1943-10-01), Garvey
patent: 4040460 (1977-08-01), Thornton
patent: 5437384 (1995-08-01), Farrell
Feijth Harald
Van Giezen Maurice G. M.
Koninklijke Emballage Industrie Van Leer B.V.
Moy Joseph M.
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