ES1295485U - Closing cap for containers (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Closing cap for containers, in particular intended for containers that have an opening in a neck provided with a threaded outer portion, comprising a lower ring configured to be coupleable to the neck of the container and an upper cap (2) that presents in its Inner face a thread configured to be coupleable to the outer threaded portion of a container neck, with the upper cap (2) and the lower ring (1) joined together in such a way that they are capable of rotating integrally with each other, the union between the upper plug (2) and the lower ring (1) being by means of two extensions (3) with a certain degree of flexibility that are diametrically opposed to each other, in which the lower edge of the body of the upper plug has a staggering that defines a lowered portion in which the extensions are located, such that in a closed condition the two extensions (3) are arranged above and parallel to the body of the lower ring (1), while after in an open position of the closure plug, the upper end of the extensions (3) acts as a hinge region in such a way that the upper plug (2) is capable of rotating, providing linear openings present in the lower ring (1) that run parallel to the lower edge of said lower ring (1) and the linear openings being arranged radially and partially underlying with respect to the grooved portion (7) and spaced apart, characterized in that the upper part of the ring The lower part, which also corresponds to the area where the two extensions (3) are located, has a diametrical thickening with a diameter such that it is greater than the outer diameter of the upper plug. (Machine-translation by Google Translate, not legally binding)

Description

DESCRIPTION

Closing cap for containers

OBJECT OF THE INVENTION

The purpose of this application is to register a closure cap for containers.

More specifically, the invention proposes the development of a cap provided with an upper cap and a lower ring fixed to each other, in such a way that they do not separate during screwing and/or unscrewing of the cap on a container neck intended for packaging carbonated drinks or mineralized water.

BACKGROUND OF THE INVENTION

In the food product packaging sector (solid, liquid, viscous substances, etc.), plastic closure caps have been used for many years, which can be provided with an internal thread that can be screwed into a thread formed in the neck of the the container itself, allowing the contents inside the container to be kept sealed, for example, in the case of a bottle of the type used for bottling beverages, such as mineral water, soft drinks, or the like.

Closing caps for containers are known in the prior art, in particular intended for containers that have an opening in a neck provided with a threaded outer portion, comprising a lower ring configured to be coupleable to the neck of the container and an upper cap that has a its inner face has a thread configured to be coupleable to the outer threaded portion of a container neck. In order to improve the environment, the upper plug and the lower ring can be articulated with each other by means of a hinged portion, such that the upper plug can move up the threaded portion of the neck while the lower ring remains in its original position. in order not to separate the container closure system with respect to the container itself. Examples of this type of stopper are described in documents ES 1237189 and ES 1281455.

The packaging industry has a need to produce lighter weight closure caps in order to reduce raw material costs and other additional manufacturing costs, which It implies having to look for new configurations with a smaller thickness that at the same time are suitable for the environment. However, this implies a reduction in the degree of quality required in the threading lines of the caps due to this reduction in the thickness of the caps in predetermined areas, such as the area of the lower ring where an tamper-evident seal acts.

During the screwing of caps in high-speed machines, it is important to ensure that the cap rings are properly positioned, occupying their corresponding seats provided in the necks of the bottles. In addition, it has also been observed that a bad positioning of the lower ring can take place, due to the interference caused by the internal retention elements present in the lower ring during its screwing, that is, an overlap of the upper plug on a part of the ring. lower, which may imply rejection in the production line.

In addition, the applicant is not currently aware of an invention that has all the characteristics that are described in this specification.

DESCRIPTION OF THE INVENTION

The present invention has been developed in order to provide a closure cap that is configured as a novelty within the field of application and solves the aforementioned drawbacks, also providing other additional advantages that will be evident from the description that follows. accompany below.

It is therefore an object of the present invention to provide a closure cap for containers, in particular intended for containers that have an opening in a neck provided with a threaded outer portion, being of the type that comprises a lower ring configured to be coupleable to the neck of the container and an upper cap that has a thread on its inside face configured to be coupleable to the external threaded portion of a neck of the container, the upper cap and the lower ring being joined together in such a way that they are capable of rotating from solidary to each other, where the union between the upper cap and the lower ring is carried out by means of two extensions with a certain degree of flexibility that are diametrically opposed to each other.

More particularly, the invention is characterized by the fact that the upper part of the lower ring, which also corresponds to the area where the two extensions are arranged, has a diametrical thickening with a diameter such that it is greater than the external diameter of the upper plug.

Thanks to these characteristics, a support and thrust zone is provided on which the lower base of the cork placement devices in bottling plants, known as capping/threading cones, can act. In this way, the problem associated with the positioning of the lower ring with respect to the upper cap that occurs at high speeds in the packaging lines through the capping/threading cones is solved, reducing the rejection of containers due to incorrect positioning of the caps. two parts that make up the closing plug.

Additional or optional aspects of the closure plug are described in the dependent claims.

Preferably, the region of the outer surface of the lateral face defined by the body of the upper plug, where the stop means are located, includes secondary ribs that extend from the lower rim of the body of the upper plug that have a height less than half the height of the lateral face of the upper plug. In this way, better support is achieved in locking the upper plug when it is in the fully open position by allowing an angle slightly greater than 180 degrees.

The closing cap described represents, therefore, an innovative structure with structural and constituent characteristics unknown up to now for the purpose for which it is intended, reasons that, together with its practical utility, provide it with sufficient grounds to obtain the privilege of exclusivity that is requested. .

Other characteristics and advantages of the closing cap for containers object of the present invention will become evident from the description of a preferred, but not exclusive, embodiment, which is illustrated by way of non-limiting example in the accompanying drawings, in which :

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1.- Is a perspective view of a first embodiment of the closure plug according to the present invention in a closed condition;

Figure 2.- Is a plan view of the closing cap represented in figure 1; Figure 3.- Is a perspective view of the closing cap of the invention mounted on the neck of a container, in a closed condition;

Figure 4.- Is a perspective view of the closure cap of the invention mounted on the neck of a container, in a partially open condition;

Figure 5.- Is a perspective view of the closure cap of the invention mounted on the neck of a container, in an open condition; Y

Figure 6.- Is an elevation view of the closure plug in the open condition represented in figure 5.

DESCRIPTION OF A PREFERRED EMBODIMENT

In view of the aforementioned figures and, in accordance with the numbering adopted, a preferred embodiment of the invention can be seen in them, which comprises the parts and elements indicated and described in detail below.

Furthermore, the terms first, second, third and the like in the description and in the claims are used to distinguish between similar items and not necessarily to describe a sequential or chronological order. The terms may be interchanged in appropriate circumstances and embodiments of the invention may operate in sequences other than those described or illustrated herein.

Furthermore, the terms top, bottom, top, bottom, and the like in the description and claims are used for descriptive purposes and not necessarily to describe relative positions.

As shown in the figures, the closure cap is intended for containers that have an opening in a neck (100) provided with a threaded outer portion. Said stopper is made up of a lower ring (1) configured to be coupled to the neck of the container and an upper stopper (2) that has a thread (21) on its inside face configured to connect to the outer threaded portion (101) present on the container neck (100), with the upper cap (2) and the lower ring (1) joined together so that they can rotate in solidarity with each other around the neck of the container. Advantageously, the closure plug is made of a single piece of plastic material that can be injection-moulded or compression-moulded.

The union between the upper cap (2) and the lower ring (1) is carried out by means of two extensions (3) with a certain degree of flexibility and constant cross section, which are diametrically opposed to each other, each one of them formed from of a region present in the lower ring that includes a grooved portion (7) such that the extensions are formed above the grooved portion (7)

As can be seen more clearly in figures 1 and 3, the upper part of the lower ring that also corresponds to the area where the two extensions (3) are arranged has a diametrical thickening (10) with a diameter such that it is greater than the outer diameter of the top plug.

Additionally, the stopper includes stop means designed to keep the upper stopper (2) in a fixed manner in an inverted position with respect to the arrangement adopted by the upper stopper (2) during the closed position.

In particular, these stop means comprise a projection (4) that protrudes from the lower ring (1), which is aligned in height with a tab (5) that protrudes laterally from the lower edge of the upper plug (2), in such a way that , in an open condition (figure 8), the tab abuts a lower surface of the projection (4), in which the tab (5) can have a surface with a curved trajectory adaptable to the radius of curvature of the lower ring.

An outer surface of the lateral face defined by the body of the upper plug (2) presents a surface in relief defined by a plurality of sections (22) each provided with a plurality of ribs in a radial distribution that extend from the upper rim to the lower rim of the upper plug body (2).

The region of the outer surface of the lateral face defined by the body of the upper plug (2), where the stop means are located, includes secondary ribs (23) that extend from the lower edge of the body of the upper plug that have a height less than half the height of the lateral face of the upper plug (2), so that it allows that the upper plug (2) adopts an angular arrangement slightly greater than 180 degrees, as shown in figures 5 and 6.

To assure the user that the container that includes the closure cap has not been tampered with, the closure cap may include an inviolability seal located between the upper cap (2) and the lower ring (1), being made up, for example, of by a plurality of break points spaced apart from each other located between the lower part of the upper cap (2) and the upper rim of the lower ring (1).

The details, shapes, dimensions and other accessory elements used in the manufacture of the closing cap of the invention may be conveniently replaced by others that do not depart from the scope defined by the claims that follow.

Claims (6)

1. Closing cap for containers, in particular intended for containers that have an opening in a neck provided with a threaded outer portion, comprising a lower ring configured to be coupleable to the neck of the container and an upper cap (2) that presents in its Inner face a thread configured to be coupleable to the outer threaded portion of a container neck, with the upper cap (2) and the lower ring (1) joined together in such a way that they are capable of rotating integrally with each other, the union between the upper plug (2) and the lower ring (1) being by means of two extensions (3) with a certain degree of flexibility that are diametrically opposed to each other, in which the lower edge of the body of the upper plug has a staggering that defines a lowered portion in which the extensions are located, such that in a closed condition the two extensions (3) are arranged above and parallel to the body of the lower ring (1), while after in an open position of the closure plug, the upper end of the extensions (3) acts as a hinge region in such a way that the upper plug (2) is capable of rotating, providing linear openings present in the lower ring ( 1) that run parallel to the lower edge of said lower ring (1) and the linear openings being arranged radially and partially underlying with respect to the grooved portion (7) and spaced apart, characterized in that the upper part of the ring The lower part, which also corresponds to the area where the two extensions (3) are located, has a diametrical thickening with a diameter such that it is greater than the outer diameter of the upper cap. 2. Closing plug according to claim 1, characterized in that the outer surface of the lateral face defined by the body of the upper plug (2) has a surface in relief defined by a plurality of sections each provided with ribs in a radial distribution extending from the upper rim to the lower rim of the upper plug body (2). 3. Closing plug according to claim 1, characterized in that it includes stop means intended to firmly maintain the upper plug (2) in an inverted position with respect to the arrangement adopted by the upper plug (2). during the closed position. 4. Closing cap for containers according to claim 3, characterized in that the stop means comprise a projection (4) that protrudes from the lower ring (1), which is aligned in height with a tab (5) that protrudes laterally of the lower rim of the upper plug (2), in such a way that, in an open condition, the flange abuts a lower surface of the projection (4), in which the flange (5) has a curved path adaptable to the radius of curvature of the lower ring. 5. Closing plug according to claims 1 and 3, characterized in that the region of the outer surface of the lateral face defined by the body of the upper plug (2), where the stop means are located, includes ribs secondaries that extend from the lower edge of the body of the upper plug that have a height less than half the height of the lateral face of the upper plug (2). Closing cap according to any of the preceding claims, characterized in that it is made of a single piece of plastic material that can be molded by injection or compression molding.