WO2021033117A1 - Square bowl-like folded container for holding liquids - Google Patents

Abstract

Proposed is a laminar folded container for holding liquids, which is made from a sheet of paper or plastic that is cold or hot die cut, thereby being marked with score lines and cuts that then allow the sheet to be folded to form a conical cavity truncated by a circular base having a concentric double cone, the sides thereof closing on themselves to generate a self-supporting, square-profile container with protection systems (covers). The container requires assembly for use. During storage and transport, it is not folded and maintains a minimum volume (flat), optimising warehouse space.

Description

Square Liquid Retainer Bowl Type Folded Container

TECHNOLOGY SECTOR DESCRIPTION

The prepared meals food industry uses generic disposable containers for the transport of prepared foods. These always consist of a container which has its corresponding lid that tries to avoid spills and generally works to eat directly in them. Once it has been used, the container is discarded.

The material that is in the highest percentage supplying this segment are plastics, these are preformed and always maintain their shape even if they are unoccupied or full, due to their postforming or injected manufacture, stable structures are developed that are closed, either with a part attached to them or with an additional element.

On the other hand, there are paper packaging, which can be large preformed cups with additional plastic lids and / or folded paper packaging, which arrive at the point of sale armed with folds and glue. They are developed in sheets of paper with coatings or laminates to protect them from humidity and are closed with flaps typical of folding with mechanical key systems.

PREVIOUS TECHNOLOGY

At present there are several types of developments from a sheet of paper coated or laminated with a plastic film that protects from moisture. A clear reference is the packaging of oriental food and the trapezoidal boxes, which are a generic where prepared foods are packed. In this type of packaging, the laminated paper sheet is stamped to mark the folds and edges on which it is assembled to form the containing cavity and the lid that is secured by means of a mechanical key. i The folding bowl-type packaging resembles the folding solution of patent application No. 16120942 of Guillermo Acevedo Beltrán, which functions as a bowl to serve food in bulk but without the property of retaining liquids. The fundamental differences are noted below:

1. The outline of the preform is a regular pentagon

2. Its base retains liquids such as sauces or juices from the food deposited there

3. The central cone folds in on itself to generate a larger container capacity.

4. Its lids can vary to give a greater volume of capacity and generate handles for transport.

5. Its shape when closed is square keeping the base circular

DESCRIPTION OF THE INVENTION

The liquid-retaining folded laminar container proposed in this document is developed on a sheet of paper or plastic, which is stamped with cold or heat, with which it is marked with engravings and cuts that will then allow it to be folded to form a cavity conical truncated by a circular base with a double concentric cone whose sides close on itself to generate a container with a square contour, self-supporting with its own protection systems (lids). This container requires to be assembled for its use; during storage and transport it is not folded and maintains a minimum volume (flat), which optimizes the space in the warehouse

Its main features are

• Square outline.

The outline of the assembled container is square, so it is better adjusted for storage and transport within containers or secondary packaging that are usually cubic. • Circular base with double concentric cone

The key element of this container, the "central cone", folds back on itself, thereby reducing its size while increasing the volume of the container. This series of truncated cones structure the base, increasing resistance for its transport

• Overlap for fluid retention

The folding system does not generate openings or open overlaps through which liquids escape and settle at the base of the package

• High volumetric capacity self-supporting lids

It has four upper fins whose basic function is to close the container and protect the content. These can be configured with some variations to become handles for carrying the container, overlapping and locking together. The lids can also be closed flush to optimize the stacking of the container or they can be raised to contain products that require greater volume.

- Lids that are part of the bowl and close the cavity level

- Lids with handles that are secure and easy to carry

- Lid with option to house cutlery or small sauce containers

BEST WAY TO CARRY OUT THE INVENTION

For the production of the square liquid retaining bowl type folded container, it is started from a sheet of paper of no less than 200 gr with factory coating or plasticized, or from a plastic sheet or other flexible material, which is subjected to a process hot or cold stamping. Once the contour, engravings and necessary cuts have been marked, the flat preform of the utensil is obtained. As this design follows the same printing and die-cutting systems of conventional boxes, it is easily applicable to the mass consumer industry.

For the preform to function for the purpose of containing, it is folded manually or mechanically without requiring any other element, adhesive or mechanical, other than the design to keep the cavity and its corresponding closure system armed. To reduce the volume of the central cone it is necessary to use a male-female die to form the double cone by pressure.

DESCRIPTION OF FIGURES

To complement the description and in order to help a better understanding of the characteristics of the invention, a series of illustrative figures is included, in each figure the key parts are indicated according to this single list of characteristic elements

1) Double concentric cone circular base

1.1 External valley of the circular base (external circle)

1.2 Base ridge (middle circle)

1.3 Inner valley of the base (inner circle)

1.4 Graph lines for ridge formation

2) Overlap triangle

2.1 V contour

2.2 Middle ridge (triangle axis)

2.3 Fold-assist fold

2.4 Male stop key

2.5 Female stop key

2.6 Mooring fin

3) Container body

3.1 Pentagonal outline 4) Container lid system

4.1 Primary closing flap

4.2 Secondary closing flap

4.3 Stop valve

4.4 Closure guides

4.5 Primary fin with handle

4.6 Handle

4.7 High volume fin

4.8 Structural closing flange

4.9 Notches to lock the flanges

FIG. 1 Plan view indicating the packaging areas

1. Double concentric cone circular base

2. Overlap triangle

3. Container body

4. Container lid system

FIG. 2 Plan view detailing parts and areas of the packaging

FIG. 3 Unassembled development side view of standard model

FIG. 4 Plan view of the current, assembled and open model FIG. 5 Side view of ordinary, assembled and open model FIG. 6 Plan view of the current model, assembled and closed FIG. 7 Side view of ordinary model, assembled and closed FIG. 8 Plan view of model with handle, unassembled FIG. 9 Side view of model with handle, not assembled FIG. 10 Plan view of model with handle, assembly open FIG. 11 Side view of model with handle, open assembly FIG. 12 Plan view of the model with handle, assembled and closed FIG. 13 Side view of the model with handle, assembled and closed FIG. 14 High Volume Model Plan View, Unassembled FIG. 15 Side View of High Volume Model, Unassembled FIG. 16 Plan view of high volume model, assembled and open FIG. 17 Side view of high volume model, assembled and open FIG. 18 Plan view of high volume model, assembled and closed FIG. 19 Side view of high volume model, assembled and closed FIG. 20 Isometric view of high volume model, assembled and open

FIG. 21 Isometric view of high volume model, assembled and closed

Claims

Square liquid retention bowl type folded container CLAIMS 1. Square liquid retention bowl type folded container characterized by the body of the container (3) whose contour is a regular grated pentagon (3.1), in the center of the pentagon are the grated lines of the circular base of the double concentric cone (1 ), that same center is the upper vertex of the overlapping triangle (2). From the upper and lateral edges of the pentagon, the four fins that make up the container lids system (4) extend. 2. Square liquid retainer bowl type folded container, according to claim 1, characterized by the graphed lines of the circular base of the double concentric cone (1) formed by three concentric circles: the measure of the radius of the inner circle (1, 3) It doubles in the radius of the middle circle (1,2) and triples in the radius of the outer circle (1,1). Nine graphed lines (1,4) tangential to the inner circle are proportionally distributed in the area between the inner circle (1, 3) and the middle circle (1, 2); two of these lines form a "V" aligned to the axis of the overlapping triangle (2). 3. Square liquid retaining bowl type folded container, according to claims 1 and 2, characterized by the graphed and cut lines of the overlapping triangle (2) located in the lower area of the pentagon, from whose center two graphed lines radiate to the vertices of the lower edge of the pentagon (2.1) and another graphed line that intersects half of that same edge (2.2); From the intersection of the right edge of the overlapping triangle with the outer circle of the circular base (1,1) a graphed line (2.3) is extended parallel to the axis of the triangle to the lower edge of the pentagon. 4. Square liquid retaining bowl type folded container, according to claim 3, characterized by a tie fin (2,6) that extends from the lower edge of the pentagon, between the axis of the overlapping triangle (2,2) and the left vertex of the triangle. On the left side of this wing the female closing key (2,5) in the shape of a T has been drilled; Next to the lower right vertex of the overlapping triangle, the male closing key (2.4) has been cut and engraved in the shape of an inverted T. 5. Square liquid retainer bowl type folded container, according to claim 1, characterized by the container lids system (4) consisting of four fins, two primary fins (4.1) and two secondary fins (4,2) arranged interleaved around the pentagonal contour of the container (3.1). The two primary fins, trapezoidal in shape, have notches on their cusp in a counterclockwise direction, which form the closure keys of the container (4.3); flanked by the closing guides (4.4). The two secondary fins do not exceed the size of the primary ones. 6. Folded container type square liquid retainer bowl, according to claim 1, characterized by the system of container lids (4) consisting of four fins, two primary fins (4.5) and two secondary fins (4,2) arranged interleaved around the pentagonal contour of the container (3.1). The two primary fins, trapezoidal in shape, have notches on their cusp in a counterclockwise direction, which form the closure keys of the container (4.3); circled by an arc that forms the handles of the container (4.6). The two secondary fins do not exceed the size of the primary ones. 7. Square liquid retaining bowl type folded container, according to claim 1, characterized by the container lids system (4) consisting of four high-volume fins (4.7), with equilateral triangle shapes, arranged around the pentagonal contour of the container (3.1). On the external sides of these triangles, the closing structural flanges (4.8) that contain the notches (4.9) are extended. 8. Square liquid retainer bowl type folded container, according to claims 1, 2, 3, 4, 5, 6 and 7, characterized by a container with a square contour whose conical cavity intersects by another smaller cone aligned on it axis, which folds back on itself forming the circular base of a double concentric cone (1). The square contour of the container is extended by four fins that make up the container's lid system (4). The body of the container (3) is closed with the fold of the two halves of the overlapping triangle (2) superimposed on one of its sides. 9. Square liquid retention bowl type folded container, according to claims 1, 2, 3, 4, 5, 6 and 8, characterized by a container with a square contour, conical body (3) and a circular base with a double concentric cone (1 ), with a flat roof formed by the overlapping and fitting of the fins of the container's lid system (4). 10. Square liquid retainer bowl type folded container, according to claims 1, 2, 3, 4, 7 and 8, characterized by a container with a square contour, conical body (3) and a circular base with a double concentric cone (1), pyramidal cover formed by the superposition and fit of the fins of the container's lid system (4).