Receptacles – Sectional – Folding
Patent
1993-07-27
1995-03-21
Pollard, Steven M.
Receptacles
Sectional
Folding
220 7, B65D 700
Patent
active
053988345
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a container in accordance with the preamble of patent claim 1.
As vegetable containers for transferring vegetables and the like from the site of production to the wholesaler and from there to the selling place in most cases still containers made from wood or cardboard are used, which containers, however, for lack of suitable possibility to be cleaned or also for lack of respective stability in case of cardboard are hardly suitable for being used again for multiple times. Containers made from wood or cardboard as well allow only poor or, if ever, insufficiently cleaning. A further disadvantage of traditional packages lies in that they require a disproportionate amount of storage room when being returned.
It is the object of the present invention to overcome the disadvantages of the known prior art and to create containers suited for multiple use. According to a further aspect these containers are to be easily manufacturable and handling of them is to be comfortable as well as only little room is to be required for return transportation.
Said object in accordance with the present invention is solved by the features of claim 1, preferred embodiments of the invention being characterized by features contained in the subclaims.
In accordance with the present invention containers made from plastic material are proposed for use as vegetable containers, said containers being provided with four side walls foldable to the inside over the bottom, so that the containers may after use be transferred in folded position, in which the containers only require a small space, i.e. they can be comfortably stored and returned. Due to being manufactured from plastic material, the containers are robust and allow good cleaning as compared to traditional vegetable containers made from cardboard or wood.
In particularly advantageous manner said container is formed in one piece and the folding hinges of the side walls are embodied by film-like hinges which as compared to other hinges are subject to being polluted in much lower degree and which apart from that can be cleaned much easier, too. Furthermore, from the point of view of production technology, film-like hinges can be manufactured easier and they do in no manner influence the constructional embodiment and the design of the side walls and bottom faces of said containers. The integral production in addition provides the advantage that mounting operations for assembling the container can be completely done without. Also the handling of the container of box during defolding or folding is extremely simple.
In particular for reasons of consumption of room for return transportation of the empty containers it is meaningful to fold the side walls to the inside, where they then should come to bear in particular within the container bottom, i.e. not protruding to the outside exceeding the dimensions of the container bottom. However, for being in a position to realize film-like hinges and, furthermore, for being able to guarantee that in defolded position of the side walls those are supported from bottom, it is advantageous to provide for intermediate elements between the side wall and the container bottom, which sensibly are connected to one another by film-like hinges. Upon removal of the container from the mould the intermediate elements are folded to the inside in direction of the container bottom and are positively locked with the container bottom, so that they form a quasi-permanent component of the bottom. The intermediate elements then preferably simultaneously form the support faces and load-absorbing faces for the side walls, to which they are connected by film-like hinges, in defolded position of the latter.
Advantageously at least the intermediate elements of a pair of opposing side walls are made higher than the intermediate elements of the other pair of side walls, so that the side walls connected to the higher intermediate elements can be folded over the other side walls. In case of overlapping of opposing side walls the intermediate elements must
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patent: 4044910 (1977-08-01), Box
patent: 4940155 (1990-07-01), Hewson
Pollard Steven M.
Schoeller-Plast S.A.
VanOphem Remy J.
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