ES1066463U - Plastic container - Google Patents

Abstract

Plastic container, particularly applicable to cans for liquid or semi-pasty products such as paints, comprising a cylindrical container (1) and a corresponding lid (2) to seal it, the internal face of the container wall being provided, a short distance below its upper edge, of a peripheral annular rib (5) that at its lower edge determines an incoming step (10), characterized in that the lid (2) of the container is a single piece of discoidal general configuration whose outermost portion is provided with a first descending inner section (11) and a second ascending outer section (12), inclined outwards and of general broken configuration, which is adapted to be applied, at least partially, on the upper portion of the internal face of the wall of the container (1) and provided with a peripheral annular rib (6) that is arranged below the incoming step (10) of the emb socket of said container (1) in the closed position of the lid (2); and because the first and second sections (11; 12) are connected by means of a connection portion provided with the flexibility necessary to act as a hinge and to allow, when an internal overpressure occurs in the container as a result of a blow or a fall, a relative movement between the said first and second parts that causes an expansion of the lid (2) that ensures the peripheral annular rib (6) of the lid under the inlet step (10) of the mouth of the container, preventing its accidental exit. (Machine-translation by Google Translate, not legally binding)

Description

Plastic container.

Technical sector of the invention

The present invention relates to a container of plastic material comprising a container and a corresponding lid to close it tightly. The packaging object of the present invention is advantageously applicable for the packaging of products liquids or semipastosos, such as paint.

Background of the invention

A type of container is currently known consisting of a container and a corresponding lid, in which the mouth of the container, which is formed in one piece, It is equipped with an inner flange, which protrudes from the inner face of the vessel wall, provided with an annular rib whose function is to cooperate with a respective outgoing arranged in the lid of the container to retain said lid in the position of closing.

It has been found that in special circumstances, such as after an accidental fall of the full container or as a result of a collision with an adjacent container during the storage or transport operations of the full containers, in which the pressure inside increases of the container, the lid leaves its sealed position and part of the product can be poured out
stored.

It is a main objective of the invention to give know a package that improves the performance of the packaging such as described above, and especially that it has a greater capacity for securing and retaining the lid on the container.

Explanation of the invention.

The package object of the invention is of the type of those comprising a cylindrical container and a corresponding lid to close it tightly, the inner face being equipped from the wall of the vessel, a short distance below its edge superior, of a peripheral annular rib that at its edge Lower determines an incoming step.

In essence, the container is characterized in that the lid is of a single piece of general discoidal configuration whose outermost portion is provided with a first descending inner section and a second ascending outer section, inclined outwardly and of general broken configuration, which is adapted to be applied, at least partially, on the upper portion of the inner face of the wall of the container and provided with a peripheral annular rib that is arranged below the incoming step of the mouth of the container in the closed position of the lid , and because said first and second sections are joined by a connecting portion provided with the flexibility necessary to act as a hinge and allow, when an internal overpressure in the container as a result of a blow or a fall, a relative movement between the aforementioned first and second parts causing an expansion in the lid that ensures the annular rib per Ifheric of the lid under the incoming step of the mouth of the container and prevents its accidental exit, and consequently the opening of the
container.

Advantageously, the hinge produces an effect of absorption of shocks or deformations that may occur in the container wall, near the area of its mouth, avoiding accidental openings of it.

According to another characteristic of the package, the joining portion is formed by an annular portion whose thickness gives it the desired flexibility, being preferably formed by a portion of smaller section than that of the first or second
sections.

According to another feature of the invention, said second ascending outer section of the cross section of the outermost portion of the lid it comprises, from inside to outside, a first ascending segment in inclined plane, a short second ascending segment essentially vertical, a third segment in plane inclined upwards and outside, a fourth ascending segment also essentially vertical and a fifth horizontal segment out, and near the junction between the first and the second segments a second is arranged portion whose thickness determines on the lid a corresponding second peripheral annular portion adapted to act as a flexible hinge.

Through this particular configuration, in addition to favor the fastening of the lid by interlocking the annular rib of said lid on the step of the mouth of the container, improves the tightness of the set to be portions of the second to fifth segments applied, by deformation elastic flap, against the inside wall of the mouth of the container

According to another feature of the invention, the fifth segment of the second ascending outer section of the lid a slit is made that allows access, through the body of the lid, to an incoming cavity of the edge of the lid arranged in at least the third and fourth segments of the edge of the lid, determining said slit, on the periphery of said fifth segment, a thin strip adapted to be broken, by way of seal, when a tool is introduced through the slit with the  In order to uncover the container.

It is thus possible to be able to open the container without having to previously manipulate the container, as it happens with the pin in the known containers, in addition that you do not give up providing an anti-fraud system, or seal, to detect that it has been opened with anteriority.

In a preferred manner, between the outer face of the  first section and the outer face of the incoming cavity of the second section of the cover are arranged reinforcement ribs that join the outer wall of said incoming cavity with said first stretch.

Brief description of the drawings

The attached drawings illustrate, by way of non-limiting example, an embodiment of the set formed by a mouth of a cylindrical container and the corresponding lid to tightly close said container. Specific:

Figs. 1 and 2 are perspective views of a container and a lid that form a container according to the invention;

Fig. 3 is a sectional view, in perspective and according to a diametral plane, of the upper portion of the container and lid of Figs. 1 and 2, respectively, in the that the lid is conveniently applied at the mouth of the container, closing it superiorly; Y

Figs. 4 and 5 are detailed views of Zones A and B, respectively, of Fig. 3.

Detailed description of the drawings

The container set 1 and lid 2 represented in Figs. 1 and 2, respectively, are manufactured in plastic material and are in one piece.

The container 1 is generally cylindrical and its side wall 3, in the area adjacent to its mouth, presents a practical thickness slightly greater than that of the rest of the wall of the container The mouth of the container 1 comprises an edge upper 4, essentially flat, and on its inner side a rib annular peripheral 5 adapted to retain, in a position of airtight closure of the container, to the lid 2. Said lid 2 is of general discoid configuration and its external edge is configured to allow its secure coupling at the mouth of the container 1. For this purpose, the outer edge is also provided with a peripheral annular rib 6, intended to be arranged by under the peripheral annular rib 5 of the container 1, in the tight closing position of the lid 2.

While container 1 is formed to from a body of revolution, the cover 2 has an area opening angle 7 the profile whose external edge varies slightly with respect to the profile of the rest of the cover 2, as It will be explained in detail later.

In Fig. 3 the cover 2 is shown applied to the mouth of the container 1. The container 1 and the Cap 2 represented are sectioned by a diametral plane of cut that passes through the angular opening area 7 of the cover 2.

In both detailed representations of the zones A and B of Figs. 4 and 5 the face contour is observed inside the area of the mouth of the container 1. It can be seen in said Figs. 4 and 5 that the inner face of the container 1 comprises of up and down a first vertical section 8, connected without solution of continuity with a second section 9 sloping downwards that configures the peripheral annular rib 5, which determines is its  lower edge an incoming step 10.

As regards cover 2, the section transverse of its edge varies slightly in the angular area of opening 7. Said cross section, shown in Fig. 4, it is provided with a first descending inner section 11, rectilinear and essentially vertical, and of a second ascending outer section 12, tilted out and broken configuration complementary to the profile of the inner face of the container 1.

Both first and second tranches are linked between yes by a first portion of minor section 13 that determines on the lid a corresponding peripheral annular portion adapted to act as a flexible hinge.

It is also observed that the said second section ascending exterior 12 of the cross section of the edge of the cover 2 comprises, from inside to outside, a first ascending segment in inclined plane 14, a short second ascending segment essentially vertical 15, a third segment in an inclined plane up and out 16, a fourth ascending segment also essentially vertical 17 and a fifth horizontal segment towards outside 18 intended to be supported against the upper edge 4 of the edge of the mouth of the container 1 in the closed position of the cover 2.

The second ascending outer segment 12 is the  which is provided with a protrusion protruding out that determines the peripheral annular rib 6 adapted to fit arranged below the incoming step 10 of the mouth of the container 1 and to collaborate with said step in securing the cover 2 in the hermetic closing position.

It is also observed in Fig. 4 that at the junction between the first and second segments 14 and 15 of the second section ascending exterior 12 of the cross section of the edge of the lid 2 is disposed a second portion of smaller section 19, which determines on the lid a corresponding second annular portion peripheral also adapted to act as a hinge flexible.

If an accidental fall of the container occurs full, the deformation of the side wall 3 of the container would generate an internal overpressure that would cause deformation of the lid 2, the portions of the lid 2 being articulated on both sides of the smaller portions section 13 and 19, expanding the lid 2 e increasing the interlocking of the peripheral annular rib 6 below the incoming step 10 of the container 1.

The edge profile of cover 2 in the area of opening 7 is shown in detail in Fig. 5. In this Fig. 5 it is observed that in the fifth horizontal segment out 18 of the second ascending outer section 12 of the cross section from the edge of the lid a slit 25 is made that allows the access, through the body of the lid 2, to an incoming cavity 21 of the edge of the cover 2 arranged in at least the third segments 16 and quarter 17 of the edge of cover 2, determining said slit 25, on the periphery of the fifth segment 18, a thin strip 22 adapted to be broken, as a seal, when a tool through the slit 25 in order to uncover the container.

As shown in Fig. 2, between the outer face of the first descending inner section 11 and the face exterior of the incoming cavity 21 of the second section 12 of the cross section of the edge of the cover 2, are arranged reinforcement ribs 23 joining the outer wall of said incoming cavity 21 with said first descending inner section 11. Specifically, two ribs 23 are each arranged in a end of slit 25 (one of which is represented in the  Fig. 5).

Likewise, it is also observed in Fig. 2, as the cover 2 is provided on the outer face of the segments third 16 and fourth 17 of the second ascending outer section 12 of a series of 26 radial and vertical fillets, which are regularly distributed along the aforementioned second tranche ascending exterior 12. The upper edges of said steaks 26 are intended to receive the support of an identical cover 2 superimposed, allowing stacking of caps in a stable manner 2 prior to application in corresponding containers.

Finally, it is noted that container 1 it is provided at its base with a peripheral annular groove 24 (see Fig. 1) adapted to receive the fitting of a corresponding annular rib 27 provided for this purpose in the cover 2.

Claims (5)

1. Container of plastic material, particularly applicable to cans for liquid or semipastose products such as paints, comprising a cylindrical container (1) and a corresponding lid (2) for sealing it, the inner face of the container wall being provided, a short distance below its upper edge, of a peripheral annular rib (5) which at its lower edge determines an incoming step (10), characterized in that the lid (2) of the package is of a single piece of general discoidal configuration whose outermost portion is provided with a first descending inner section (11) and a second ascending outer section (12), inclined outwardly and of general broken configuration, which is adapted to be applied, at least partially, on the upper portion of the inner face of the wall of the container (1) and provided with a peripheral annular rib (6) that is arranged below the incoming step (10) of the container recess of said container (1) in the closed position of the lid (2); and because the first and second sections (11; 12) are joined by a joining portion provided with the flexibility necessary to act as a hinge and allow, when an internal overpressure in the container ensues as a result of a blow or a fall, a relative movement between said first and second parts that causes an expansion of the lid (2) that ensures the peripheral annular rib (6) of the lid under the incoming step (10) of the mouth of the container, preventing its accidental exit. 2. Container according to claim 1, characterized in that the joint portion is formed by an annular portion whose thickness gives it the desired flexibility, being preferably formed by a portion of smaller section (13) than that of the first or second sections (11; 12). 3. Packaging according to claims 1 and 2, characterized in that said second ascending outer section (12) of the cross-section of the outermost portion of the lid (2) comprises, from inside to outside, a first ascending segment in an inclined plane (14), a short second essentially vertical ascending segment (15), a third segment in an upward and outward plane (16), a fourth essentially vertical ascending segment (17) and a fifth outward horizontal segment (18), and because near the junction between the first and second segments a second portion is disposed whose thickness determines in the lid (2) a corresponding second peripheral annular portion, preferably formed by a second portion of smaller section (19), adapted to act as a flexible hinge. 4. Packaging according to any one of the preceding claims, characterized in that in the fifth segment (18) of the second ascending outer section (12) of the lid (2) a slit (25) is made allowing access through the body from the lid (2), to a cavity (21) entering the edge of the lid (2) arranged in at least the third and fourth segments (16; 17) of the edge of the lid, determining said slit (25), in the periphery of said fifth segment, a thin strip (22) adapted to be broken, as a seal, when a tool is introduced through the slit in order to uncover the
container. 5. Packaging according to any one of the preceding claims, characterized in that between the outer face of the first section (11) and the outer face of the cavity (21) of the second section (12) of the lid (2) ribs are arranged (23) of reinforcement that join the outer wall of said incoming cavity with said first section.