CARDBOARD CONTAINER WITH INTEGRATED LID

Abstract

A cardboard container has an integral lid and is obtained from a cardboard sheet duly die-cut in a single piece in which a central sector or bottom is defined, from whose edges two respective isoscelic inverted trapezoidal sectors emerge that determine the larger and smaller side walls of the container. Two of these walls are provided in correspondence to their lateral edges with tabs for gluing together the adjoining walls. From one of the side walls there emerges a sector that acts as a lid, with a configuration in accordance with the configuration of the bottom but with proportionally larger dimensions, which ends in opposition to its fold line in a tab for closing and stabilizing the lid.

Claims

1. A cardboard container with an integrated lid, wherein the container is formed from a cardboard sheet duly die-cut in a single piece in which a central sector or bottom, which is rectangular or quadrangular, is defined, wherein respective isoscelic inverted trapezoidal sectors emerge from edges of the central sector or bottom, wherein the isoscelic inverted trapezoidal sectors determine larger and smaller side walls of the container, which has two of these walls provided in correspondence to their lateral edges with tabs for gluing together the adjoining walls, and wherein, from one of said side walls, there emerges a sector that functions as a lid, with a configuration in accordance with the configuration of the bottom but with proportionally larger dimensions, which ends in opposition to its fold line in a tab for closing and stabilizing the lid.

2. The cardboard container with the integrated lid, according to claim 1, wherein the tabs emerge laterally from the larger side walls.

3. The cardboard container with the integrated lid, according to claim 1, wherein the lid emerges upwards from one of the larger side walls.

4. The cardboard container with the integrated lid, according to claim 1, wherein the sector that functions as the lid has bevels at its corners that, when closing the lid on the main body of the container, determine ventilation holes for products contained within it.

5. Cardboard The cardboard container with the integrated lid, according to claim 1, wherein the sector that functions as the lid has windows that determine ventilation holes of products contained within the container.

6. The cardboard container with the integrated lid, according to claim 5, wherein the windows are triangular in configuration.

7. The cardboard container with the integrated lid, according to claim 1, wherein the tab the lid has a horizontally elongated rectangular configuration.

8. The cardboard container with the integrated lid, according to claim 1, wherein the cardboard sheet from which the container is obtained is simple cardboard.

9. The cardboard container with the integrated lid, according to claim 1, wherein the cardboard sheet from which the container is obtained is made of composite cardboard.

10. The cardboard container with the integrated lid, according to claim 1, wherein the cardboard sheet from which the container is obtained includes a coating of anti-humidity material.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0014] To complete the description that will soon be made, and in order to aid a better understanding of the characteristics of the invention according to an example of a preferred embodiment thereof, a set of drawings are provided that form an integral part of this description where, for purposes of illustration and in a non-limiting sense, the following is shown:

[0015] FIG. 1.—Shows a top plan view of a cardboard sheet from which a container with an integrated lid is obtained in accordance with the object of the present invention.

[0016] FIG. 2.—Shows a view similar to that of FIG. 1, but for a variant in which the height of the container is lower.

[0017] FIG. 3.—Shows a perspective view of the container properly assembled from the cardboard sheet of FIG. 1 and with its lid closed.

[0018] FIG. 4.—Finally, shows a perspective view of various stacked containers with their lids open, partially inserted into each other, occupying a minimum volume of space.

PREFERRED EMBODIMENT OF THE INVENTION

[0019] In view of the figures outlined, it can be seen how the cardboard container with an integrated lid of the invention is obtained from a cardboard sheet that, as mentioned previously, can be simple or composite, and can even include anti-humidity coatings or coatings of any other type common in the sector, a sheet duly die-cut in a single piece and in which a central sector or bottom (1) is defined, which, in the chosen examples, presents a rectangular configuration, tending towards the square in the variant shown in FIG. 2, and which could also be square, from whose edges there emerge respective inverted isoscelic trapezoidal sectors, which will determine the larger (2) and smaller (3) side walls of the container, with there being two of these walls, in the chosen examples the larger side walls (2), provided with two trapezoidal tabs (4) corresponding to their lateral edges for gluing and assembling the container.

[0020] One of the larger side walls (2) is capped off in opposition to its folding edge over the bottom (1) in a lid (5), in the rectangular embodiments, tending towards a square in the variant shown in FIG. 2, with proportionally larger dimensions than said bottom (1), wherein the lid (5) is foldable through a folding line (6), in opposition to which a stabilizing tab (7) of the lid is established in the closed situation.

[0021] Said tab (7) will preferably have a horizontally elongated rectangular configuration.

[0022] FIG. 3 shows the container of the invention duly assembled and with its lid (5) closed, and it can be observed how the tab (7) stably retains said lid (5) against the larger side wall (2), also showing the inverted truncated pyramid-shaped configuration of the container which, as seen in FIG. 4, significantly facilitates the stacking manoeuvres of the boxes or containers with their lid (5) open, presenting a minimal volumetric occupation.

[0023] The determining or main sector of the lid (5) will present bevels (8) at its corners, in order to define aeration gaps in the closure of the lid on the main body of the container, in order to maximize the useful life of the products contained within, for which said determining sector of the cover (5) will be perforated by various triangular windows (9), also determining ventilation/aeration holes with the same purpose as the aforementioned bevelled corners.

[0024] As has been previously mentioned, the trapezoidal configuration of the internal gluing tabs (4) is specially designed to be compatible with standard assembly machines and their glue injection system.

[0025] In this way, an economical, effective, easily stackable container is achieved with minimal volumetric occupation, and it is totally ecological.