DE2854575A1 - Plastic box for fruit and vegetables - comprising one plane injection moulding with side walls joined to bottom by flexible bands - Google Patents

Abstract

A plastic box, specially for the transport, storage and presentation of vegetales and fruit, consists of a single plane injection moulding. In the flat position, the rectangular bottom is joined at all 4 sides by pairs of flexible bands to 2 short and 2 long side walls. The short side walls carry, in addition at two-thirds of their height a strap on each side, joined to it by a flexible band and with two holes in each. When the side walls are upturned, the box is held together by two bolts inserted through each strap and two holes in the long side wall edges. Such a box can be produced at low cost. It can be stored in a small space when not in use and can be re-used many times, unlike wooden boxes.

Description

Plastic box

The invention relates to a box, in particular for fruit and vegetables, made of plastic with a base and four side walls integrally connected to the base.

For the transport, storage and presentation of fruit and vegetables are still predominant in agriculture and in the relevant trade today Used wooden boxes. The production of these wooden boxes is partly done by hand and is therefore quite expensive, In order to keep the production costs low, inferior material is usually used, which is a common use does not withstand. Repeated reuse is also prevented by the fact that the Crates that quickly contaminate agricultural products are not cleaned can. In addition, the empty ones that are neither collapsible nor stackable Wooden boxes require a lot of storage and transport space, so that many are still usable Wooden boxes are more likely to be crushed and thrown away due to lack of space than to be reused are fed.

Plastic boxes of the type mentioned at the beginning are also known, whose side walls are rigidly connected to the floor and the over- and can be stacked one inside the other. The stackability is exhibited at an angle Reached side walls that prevent the boxes from being lined up tightly together of these are very expensive for the production of such boxes by injection molding and therefore require expensive slide or jaw tools.

The invention has for its object to provide a plastic box of To create the type described at the outset, which is produced easily and inexpensively and those in the empty state with similar boxes nested inside one another in a very small space can be so that they can be used as a reusable box especially for storage and suitable for the transport of agricultural products.

To solve this problem it is proposed according to the invention, that the bottom and the side walls of thin-walled film tapes by at least 1800 from a pre-cut position to an upright position with side walls protruding approximately vertically from the floor into a folded one Position with the side walls folded in parallel to the floor, pivotable with one another are connected that the side walls in the erected position on their one another adjacent edges with each other and flat with each other in the folded position and / or are releasably connectable to the floor and that the box opening when erected Sidewalls is larger than the outline dimensions of the folded structure.

According to a preferred embodiment of the invention are in the range the vertical edges of at least two side walls in the upright position tabs which can be releasably connected to the adjacent side walls via a snap-in connection arranged with which the side walls are held in their erect position will.

The tools required to make the box are special easy if the bottom, the side walls and possibly the flaps one over the film tapes coherent, can be produced in the state that is spread out like a blank Form injection molded part.

Further advantageous refinements and developments of the invention result from the subclaims.

In the drawing is a preferred embodiment of the invention shown in a schematic manner. 1 shows a fruit and vegetable crate in an upright position; FIG. 2 shows the box according to FIG. 1 in a cut-out spread Position; Fig. 3 and 4 sections of the box of Fig. 1 in the folded up Position in an enlarged sectional view.

The box essentially consists of a base 2 and two each Broad side walls 4 and narrow side walls connected in one piece to the floor via film strips 3 6th

The box made of thermoplastic material is cut to size expanded state (Fig. 2) manufactured as a one-piece part by injection molding. At the side edges of the two narrow side walls 6 is one laterally protruding Tab 8 is integrally formed so as to be pivotable via a film tape 9.

From the expanded position shown in FIG. 2, the side walls 4.6 on the flexible film strips 3 in the vertical shown in Fig. 1 Erected position and in this position swiveled inwards by 900 Connecting straps 8 are held to form a functional box. The connecting tabs 8 each have two locking recesses 10 for this purpose Recording of corresponding latching cams 12 formed on the broad side walls 4 and contain an adjacent broad side wall in the edge area overlapping Level 14.

The flexibility of the thin-walled film tapes 3.9 allows further one Complete collapsing of the box in the sections shown in FIGS. 3 and 4 position shown in which the side walls 4, 6 and the tabs 8 are flat against each other or rest against the floor 2. For this purpose, 6 are on the narrow side walls in the area their edges that are hinged to the ground and that are bent inwards at right angles provided, the width of which corresponds approximately to the material thickness of the side walls 4.6. In addition, 4 recesses 18, 19 are provided in the bottom 2 and in the broad side walls, the inwardly pivoted connecting straps in the folded state 8 record. The narrow side walls 6 also contain some additional locking recesses 20, in which the latching cams 12 formed on the broad side walls 4 can be locked, to hold the folded structure tightly together.

With the turn 16 directed towards the inside of the box on the narrow side walls 6 and the special aligned arrangement of the film tapes shown in the drawing 3 in the area of the bottom and side wall edges is achieved that the box opening with erect side walls 4.6 is larger than the outline dimensions of the floor 2 and the folded structure, so that the boxes are secure and form-fitting Can be stacked on top of each other and that also several boxes in collapsed State stacked in an upright box to save space can be.

The openings 22 in the bottom 2 and in the side walls 4, 6 ensure that the prescriptions intended for the reception of agricultural products Crates are well ventilated, even if they are in a large pile next to and close together are stacked on top of each other. In addition, these breakthroughs result in an essential one Material savings.

Although the plastic for the production of the boxes can be any color can be designed, it has been shown that a black colored plastic made of polyester or a polyolefin the high alternating stresses in the For agriculture, boxes that are often exposed to the sun are best suited to agriculture will. The outer surfaces of the side walls are suitable for receiving an imprint for labeling and advertising purposes.

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Claims (13)

Claims box made of plastic with a bottom and four in one piece sidewalls connected to the floor, d u n g e n n e c h n e t that the bottom (2) and the side walls (4,6) via thin-walled film strips (3) by at least 1800 from an expanded position to an erect one Position with side walls protruding approximately vertically from the floor in a folded position Position with the side walls folded in parallel to the floor, pivotable with one another are connected that the side walls (4,6) in the erected position on their adjacent edges with each other and in the collapsed position flat with each other and / or with the bottom (2) are releasably connectable and that the Box opening with erected side walls (4,6) is larger than the outline dimensions the bottom (2) and the folded structure. 2. Box according to claim 1, d a d u r c h g e k e n n -z e i c h n e t that the film strips (3) on the upper edge of the bottom (2) and laterally outward on the inner lower edge of the side walls (4, 6) facing the floor in their upright position Position downwards. 3. Box according to claim 1 or 2, d a d u r c h g ek e n n -z e i c h n e t that on the lower edge at least two side walls (6) one with an erect Position pointing towards the inside of the box, enlarging the opening cross-section of the box Bend (16) is provided. 4. Box according to claim 3, d a d u r c h g e k e n n -z e i c h n e t that the film strips (3) on the bottom edge of the box facing the inside of the box Project the bend (16) downwards. 5. Box according to one of claims 1 to 4, d a d u r c h g e k e n n z e i h n e t that in the area of the vertical edges in the upright position at least two side walls (6) with the adjacent side walls (4) via one Latching connection (10, 12) releasably connectable tabs (8) are arranged. 6. Box according to claim 5, d a d u r c h y e k e n n -z e i c h n e t that the tabs (8) can be pivoted in one piece via film strips (9) and at least by 1800 are hinged to the relevant side walls (6). 7. Box according to claim 5 or 6, d a d u r c h g e -k e n n z e i c h n e t that the tabs (8) have at least one locking recess (10) for receiving have a locking cam (12) arranged on the adjacent side wall. 8. Box according to claim 5 or 6, d a d u r c h g e -k e n n z e i c h n e t that the tabs (8) have at least one locking cam for insertion into a have latching recess arranged on the adjacent side wall. 9. Box according to claim 7, d a d u r c h g e k e n n -z e i c h n e t that the side wall (6) carrying the tab (8) has at least one further locking recess (2C) for receiving the locking cam (12) in the folded position of the side walls (4,6). 10. Box according to one of claims 5 to 9, d a d u r c h g e k e nn z e i c h n e t that the tab (8) a the edge area the adjacent side wall overlapping step (14). 11. Box according to one of claims 5 to 10, d a d u r c h g e k e n n z e i c h n e t that in the folded position of the side walls (4,6) the inwardly against the associated side wall (6) folded tab (8) of a Recess (18, 19) of the adjacent side wall (4) and / or of the bottom (2) can be received is. 12 box according to one of claims 1 to 11, d u r c h ge k e n It should be noted that the side walls (4, 6) and / or the base (2) have a large number Have wall openings (22). 13. Box according to one of claims 1 to 12, d a d u r c h g e k e nn z e i h n e t that the bottom (2), the side walls (4,6) and optionally the tabs (8) are connected via the film strips (3,9) in a cut-to-size manner Form expanded state manufacturable injection molded part.