RU2742151C1 - Lid for containers with increased air tightness - Google Patents

Abstract

FIELD: containter lids.SUBSTANCE: invention relates to a container lid with a hermetically sealed closure. The cover contains a cylindrical body, which has an upper part, the inner surface of which has two joints, from which the cylindrical skirt (5) and the shoulder (7) protrude, while the cylindrical skirt and the shoulder are made of such dimensions that they are in contact with the inner surface of the neck (2) a container, and so that at least two sealing regions are created. The lid is closed when the top, having a cylindrical skirt and a shoulder, is inserted into the inlet of the container.EFFECT: safety.7 cl, 5 dwg

Description

The technical field to which the invention relates

The invention relates to the field of container closures, and more particularly to container closures with airtight closures. The subject of the invention is thus to provide a lid for containers suitable for guaranteeing a hermetic sealing of the contents.

Another object of the invention is also to provide a lid for containers suitable for increasing the tightness in the neck region of the container so that pressure resistance is increased or so that it can withstand damage during transport.

Another object of the invention is also to provide a lid for containers suitable for increased stability with respect to the risk of slipping and loss of tightness during palletizing, storage or horizontal transport operations.

State of the art

In the area of container lids, surface-contact lids are known that are provided to attach to the neck of a container and protect its contents.

Typically, closures of this type use a kind of unevenness on their inner perimeter surface to contact the outside of the neck of the container, thereby making it possible to achieve a certain tightness when the lid is attached to the container.

However, this type of cap has several disadvantages. In their use, it is in fact encountered, inter alia, that these closures are often used to close the container by mating with the outside of the neck of the container, and the presence of small protrusions leads to inadequate sealing. Likewise, even starting from an initially sealed situation, due to their configuration common for storage or transportation operations, causes critical deformation when sealed, even leads to increased leakage.

Thus, there is a need, according to the state of the art, for improved closures of this type to provide container closures suitable for assuredly providing reliable and long-term sealing of contents.

Disclosure of invention

Thus, the container closure proposed by the present invention is presented as an improvement over the prior art, which satisfactorily achieves the characteristics indicated above as being ideal for the art.

The subject of the invention is a lid for containers comprising a cylindrical body containing, on its inner surface, a cylindrical skirt and a bead, where the cylindrical skirt and bead are sized so that they contact the internal surface of the container neck and create at least two sealing regions ... Thus, by the use of the invention, closure means are advantageously provided for closing the neck opening to improve the tightness of the container closure.

In a preferred embodiment, the bead is cylindrical in shape to provide a continuous perimetric pattern on the inner surface of the upper base of the cylindrical body. In another preferred embodiment, the bead has an outer perimeter that is larger than the outer perimeter of the cylindrical skirt. In a particular embodiment, the width of the cylindrical skirt along the axial direction of the cover is greater than the width of the bead.

It is further contemplated in one embodiment of the cylindrical skirt to include a projection at the lower edge of its outer surface for contact with the neck of the container. Thus, the contact of the cylindrical skirt with the inner surface of the container neck is favorably made easier, thereby ensuring the tightness of the container closure.

According to a preferred embodiment of the invention, the inner surface of the upper base of the lid comprises first and second attachment points from which a cylindrical skirt and a bead protrude respectively. For this reason, the sealing regions are advantageously completely independent and provide greater resistance to loss of the airtight seal due to manufacturing defects, blisters formed during storage, warehousing or transport.

In another preferred embodiment, the bead is located on the outer surface of the cylindrical skirt. In this way, the second contact point of the cylindrical skirt with the container neck is favorably ensured, thereby guaranteeing a second sealing region.

In one embodiment of the invention, the cylindrical body is formed using a pivot joint of two superimposed parts: the lower part and the upper part. In this sense, the double hermetic seal solution according to the present invention described above is favorably located at the top of the lid, in addition to the lids described above formed from a single rigid body, the present invention is also adapted to this type of lids comprising two bodies, which are widely used in, for example, oil bottles or small water bottles. In addition, in a particular embodiment, it is contemplated that the lower portion should be provided with clamping means to hold it against the neck of the container, and the upper portion should be provided with a cylindrical skirt and shoulder. Advantageously, with such a configuration, the lid, more specifically its lower part, is kept in a state attached to the neck of the container at all times in such a way that its loss is prevented, and there is only a need for a simple movement of the upper part of the lid, which is inserted into the neck by means of rotation relative to the hinge swivel connections and the container becomes hermetically sealed.

As stated above, the present invention contains a number of technical features, whereby beneficial technical effects are provided, which mainly include, inter alia, an improved hermetic seal provided. Thus, using the present invention prevents dust and / or foreign bodies from entering the container, preventing them from coming into contact with its contents. Advantageously, the double hermetic seal solution according to the present invention is applicable to all types of lids, for example: lids containing one body; covers containing two parts connected to one another by means of a hinge; or any other type of device.

Since they are located in the inner region, due to the use of two sealing regions provided by the lid, a reduction in the weight of the lid and a clean surface of the container neck for contact is achieved. In addition, the risk of blistering is lower in the inner region than in the outer region of the neck, which makes it possible to better withstand any pressure or withstand damage during transport or installation on a pallet. On the other hand, thanks to the two inner circumferential contacts, good vertical stability of the closure is guaranteed when placed on the neck of the bottle and excellent stability against any risk of slipping and leakage during storage or horizontal transport operations.

Brief Description of Drawings

In order to complement the description and facilitate a better understanding of the features of the invention in accordance with the preferred practical embodiment, the drawings, in which the following objects are shown, where their images are of an illustrative and non-limiting nature, are attached as an integral part of the said description:

in fig. 1 is a perspective view of a lid according to an embodiment of the invention, comprising two hinge portions and provided on a container neck, in an open position;

in fig. 2 is a front view of the container lid of FIG. 1 in a closed position according to an embodiment of the invention;

in fig. 3 is a rear view (bottom view) of the container lid shown in the previous figures in a closed position according to an embodiment of the invention;

in fig. 4 is a cross-sectional view of a lid according to an embodiment of the invention comprising two parts and provided on the neck of a container in a closed position;

in fig. 5 is a cross-sectional view of a lid according to an embodiment of the invention comprising a single body and provided on the neck of a container.

Implementation of the invention

All definitions presented in this detailed description are used to assist in a full understanding of the invention. Those of ordinary skill in the art can thus appreciate that these device variations, changes and modifications to the embodiments described in this technical description are possible without departing from the scope of the invention, so that the design and specific implementations presented in this document is provided merely for the purpose of illustration and to facilitate understanding, and in no way to limit aspects of the invention.

According to the present invention, a solution is disclosed comprising a double hermetic seal for container lids, based on the configuration of the inner surface of the lid comprising a cylindrical skirt 5 and a bead 7, where the cylindrical skirt and bead are dimensioned so as to ensure contact of the inner surface of the container neck 2 and thus , two areas of compaction were created.

This solution is applicable to any type of lid, but as an example, a specific embodiment showing a lid having two parts hinged to one another is described in detail below and shown in FIG. 1-4 and the same double hermetic seal solution but applied to a lid containing a single body is described and shown in FIGS. five.

FIG. 1 shows a lid 1 provided on a container neck 2 in an open position.

The lid 1 is formed using a hinged connection of two superimposed parts: the lower part 3 and the upper part 4. The lower part 3 contains clamping means for holding it on the neck 2 of the container, where both parts are used to open and close the lid 1.

FIG. 2 shows a front view of the cover 1 in the closed position. As can be seen, said lid 1 consists of a substantially cylindrical body formed using a hinged connection of the lower part 3 and the upper part 4.

FIG. 3 shows the inside of the cover in a rear view. As can be seen, the upper part comprises a cylindrical skirt 5 protruding from the inner surface of the said upper part, and the cylindrical collar is disposed continuously on the inner surface of the upper part. Both elements: the cylindrical skirt and the cylindrical collar are made of such dimensions that when they are introduced into the neck 2 of the container, they come into contact with the inner surface of the neck at least at two contact points located at different heights. The contact points are substantially circular and concentric contact points that provide continuous contact with the interior of the container neck along its entire perimeter. Good stability of the lid in the vertical direction when it is attached to the container neck is thus guaranteed.

The cylindrical skirt preferably comprises a projection 6 disposed continuously at the lower edge of its outer surface for contact with the neck of the container.

The cylindrical skirt 5 and the cylindrical bead 7 (each) are permanently connected to the top at two different locations on its inner surface, specifically the next two concentric peripheries with different diameters.

However, in an alternative embodiment with respect to the previous paragraph, it is assumed that the cylindrical collar is located on the outer surface of the cylindrical skirt itself. In this sense, there is only one connection point with the inner surface of the upper part, i.e. a place defined by the cylindrical skirt 5 itself and the inner surface of the upper part. In this configuration, the cylindrical bead protrudes from the upper edge of the cylindrical skirt 5, from its outer surface, to contact the neck of the container at a location close to the neck.

FIG. 4 shows a cross-section of the lid 1. As can be seen, two sealing regions are defined by the two contact points 8 and 9 between the cylindrical skirt 5, the cylindrical bead 7 and the inner surface of the container neck. Thus, for the sealing areas, a clean surface of the container neck or at least one area that is cleaner than the outer surface is advantageously used, thereby also reducing the risk of blistering with respect to configurations using the outer surface of the container neck, and the weight of the cover is reduced.

The diameter of the outer perimeter of the protrusion 6 is less than the outer perimeter of the cylindrical collar 7. On the other hand, the width of the skirt 5, measured along the axial direction of the cover, is greater than the width of the cylindrical collar 7. Thus, the protrusion of the cylindrical skirt is sized so that it can be inserted into a certain distance into the container and come into contact with the first contact point 8, ensuring the first sealing area, while the bead is sized to contact the second contact point 9 within the container, closer to the end, or the inlet of the container than the first contact point, ensuring a second seal area.

Sealing areas thus defined within the container resist any pressure or withstand possible damage during transport than with solutions that use the outside of the container. Likewise, the invention provides excellent stability against the risk of slipping and is guaranteed to be able to prevent leakage during palletizing, storage or horizontal handling operations.

In addition, it is rather unlikely that protrusions appear on the inside of the container, which could adversely affect the connecting means described above, while it is likely that some form of protrusion appears on the outside as a result of its manufacture. When the lid is closed from the outside with the outer lip, these protrusions can cause a leak in the seal. However, contacting the cylindrical skirt and cylindrical bead described above with the interior of the container is guaranteed to provide two areas of sealing that are immune to these protrusions.

A double hermetic seal on the product is achieved all the time the lid is closed, i.e. when the upper part 3 is inserted into the inlet of the container using a hinge that connects the upper part 3 to the lower part 2. This hinge connection contains two pairs of slots 10 located vertically parallel to the central axis of the lid 1 defining two strips 11 for connecting both : bottom and top, parts. Hinges are formed from said strips 11 between the lower part and the upper part.

In the closed position, the described configuration provides increased tightness, since the configuration contains at least two sealing regions protecting the interior of the container. In addition, the closure can be improved by connecting the cylindrical skirt 5 and the cylindrical bead 7, configured to contact the interior of the container, with similar members configured to contact the exterior of the container. Thus, one or more perimetric patterns 12 can be formed on the inner surface of the bottom portion 3, thereby reducing the inner area of the lid 1 and contributing to preventing dust from entering the container. In addition, the upper part 4 can also contain one or more protrusions at the lower edge of its perimetric wall 13, so that the protrusion faces the cylindrical skirt and can contact the outer surface of the container neck 2, limiting the ingress of dust and / or foreign bodies in the area of contact with the consumer's mouth.

FIG. 5 is a cross-sectional view of a cover 20 according to a particular embodiment of the invention. As can be seen, the internal configuration is the same as the internal configuration of the embodiment described above of the cover having two hinge portions. The difference is that the lid of this embodiment shown in FIG. 5 is formed as a single rigid body.

The lid 20 thus comprises a cylindrical skirt 5 protruding from the inner surface of the lid (specifically from its upper base), and a cylindrical bead 7 formed continuously on said inner surface. Both elements: the cylindrical skirt and the cylindrical collar are made of such dimensions that they can be inserted into the neck 2 of the container in such a way that they contact the inner surface of the neck at at least two contact points 8, 9 located at different heights. The points of contact are substantially circular and concentric points of contact, where each of them provides continuous contact with the interior of the container neck along its entire perimeter. Good vertical stability of the lid when attached to the container neck is thus guaranteed to be ensured when attached to the container neck. The two points of contact 8, 9 mentioned between the cylindrical skirt 5, the cylindrical bead 7 and the inner surface of the container neck, respectively, define two sealing regions.

Preferably, the cylindrical skirt comprises a protrusion 6 formed continuously at the lower edge of its outer surface to contact the neck of the container.

In an alternative embodiment, it is contemplated that the cylindrical bead should be located on the outer surface of the cylindrical skirt itself. In this sense, there is only one connection point with the inner surface of the upper part, i.e. a location defined by the cylindrical skirt 5 itself and by said inner surface. In this configuration, the cylindrical collar projects from the upper edge of the cylindrical skirt 5, on its outer surface, to contact the neck of the container at a location close to the inlet of the container.

In addition, the lid 20 may comprise one or more perimetric patterns 12 and / or one or more projections on the inner surface of the perimeter wall 21, thereby reducing the interior of the lid 20 and contributing to preventing dust from entering the container.

Finally, in view of this description and the drawings, it should be understood by a person skilled in the art that the invention has been described according to several preferred embodiments thereof, but many variations may be incorporated into said preferred embodiments without departing from the subject matter of the claims.

Claims (7)

1. A lid for containers, comprising a cylindrical body, which has an upper part (4) having an inner surface with a first connection point and a second connection point, from which a cylindrical skirt (5) and a shoulder (7) protrude, respectively, where the cylindrical skirt and a shoulder are sized to contact the inner surface of the neck (2) of the container and to create at least two sealing regions, the lid being closed when the top, having a cylindrical skirt and bead, is inserted into the inlet of the container. 2. The cover of claim. 1, characterized in that the bead has a cylindrical shape, which provides a continuous perimetric relief. 3. A cover according to claim 2, characterized in that the bead has an outer perimeter larger than the outer perimeter of the cylindrical skirt. 4. The cover according to claim 3, characterized in that the width of the cylindrical skirt along the direction of the central axis of the cover is greater than the width of the bead. 5. The cover according to any one of paragraphs. 1-4, characterized in that the cylindrical skirt has a protrusion (6) at the lower edge of its outer surface for contact with the neck (2) of the container. 6. The cover according to any one of paragraphs. 1-5, characterized in that the cylindrical body is formed using a hinged connection of two superimposed parts: the lower part (3) and the upper part (4). 7. A lid according to claim 6, characterized in that the lower part (3) is provided with clamping means for holding it on the container neck (2).

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