WO2021191486A1

WO2021191486A1 - Closing cap for containers

Info

Publication number: WO2021191486A1
Application number: PCT/ES2021/070208
Authority: WO
Inventors: Jose Francisco Gonzalez Sanchez
Original assignee: Jose Francisco Gonzalez Sanchez
Priority date: 2020-03-27
Filing date: 2021-03-25
Publication date: 2021-09-30
Also published as: EP4129853A1; BR112022019405A2; ES1247151Y; CN115867495A; ES1247151Y2; ES1247151U; US20230142631A1

Abstract

The invention relates to a closing cap for containers, particularly intended for containers that have an opening in a neck (100) provided with an outer threaded portion (101), comprising a lower ring (1) intended for being coupled to the neck of the container and an upper cap (2) having an inner threaded region (20) configured for being coupled to the outer threaded portion of a container neck, the upper cap and the lower ring being articulated to each other by means of a hinged portion (3), such that the lower ring is formed by an annular-shaped body. Said lower ring has a section (10) with a diameter larger than the remaining section (11) of the annular-shaped body, wherein the hinged portion is located in the section with the larger diameter.

Description

Closing cap for containers

DESCRIPTIVE MEMORY

OBJECT OF THE INVENTION

The object of the present application is the registration of a closing cap for containers.

More specifically, the invention proposes the development of a closing cap for containers with environmental advantages as regards the recycling of containers with a cap, as well as advantages in the manufacturing process thereof.

BACKGROUND OF THE INVENTION

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

Although this system used is very practical for the user and relatively inexpensive for manufacturers of containers and beverages, it is not so attractive from an environmental point of view since the user repeatedly discards the body of the bottle independently of the cap. , which implies that the cap is not properly recycled, generating a waste that is not degradable and harmful to the environment. Document No. ES 1217541 is known in the state of the art, which describes a closure cap for containers that satisfactorily solves the aforementioned problem.

However, in practice it has been observed that it is complex to manufacture as it requires more complex tools, for example, the incorporation of slides in the injection molds for shaping the closure caps, which also implies an increase in the manufacturing and maintenance costs. Furthermore, the applicant is not currently aware of an invention that has all the features 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, comprising a lower ring intended to be coupled to the neck of the container and a upper cap having an inner threaded region configured to engage the outer threaded portion of a container neck, the upper cap and the lower ring being articulated to each other by means of a hinged portion, such that the lower ring is formed by a ring-shaped body, characterized in that the lower ring has a section with a diameter greater than the remaining section of the ring-shaped body, wherein the hinged portion is located in the section with the largest diameter.

Thanks to these characteristics, this design facilitates the manufacturing process since it can be carried out by using plastic injection molds devoid of slides, which reduces investment, maintenance and manufacturing costs, since the provision of These two regions with different diameter allow to simplify the design of the hinged portion.

Additionally, the closure cap includes a tamper evident seal between the upper cap and the lower ring, which ensures that the container has not been previously manipulated before use by the user.

Preferably, the tamper evident seal is made up of a plurality of break points located on an outwardly projecting lower ring rim and attached to a lower edge of the upper cap. Also preferably, the outwardly projecting lower ring rim is located on the smaller diameter portion thereof.

Advantageously, the hinged portion is formed by an extension of a substantially rectangular shape that is at its upper end connected to the upper cap and its lower end connected to the lower ring, such extension being devoid of fold lines.

The closing cap described thus represents an innovative structure with structural and constitutive characteristics hitherto unknown 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 be 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 the closure cap according to the invention, assembled in a container, in a closed condition;

Figure 2.- Is a perspective view of the closing cap of the invention, mounted on a container, in a raised position prior to its open condition;

Figure 3.- Is a side elevation view of the upper cap shown in the previous figures in the raised position;

Figure 4 is a side elevation view of the top cap in a partially open condition;

Figure 5.- Is a side elevation view of the upper cap in a completely open condition;

Figure 6.- Is a schematic view of the closing cap of the invention in a partially open condition from another point of view:

Figure 7.- Is a perspective view of a second embodiment of a closure cap according to the present invention, mounted on a container neck, in an open condition; and

Figure 8.- Is a detailed bottom perspective view of the cap represented in figure 7 in a closed condition. DESCRIPTION OF A PREFERRED EMBODIMENT

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

As shown in the attached figures, the closure cap for containers is particularly intended for containers that have an opening in a neck (100) provided with a threaded outer portion (101), comprising a lower ring (1) provided for engaging the container neck (100) and a top cap (2) having an inner threaded region (20) (see Figure 6) configured to engage the outer threaded portion (101) of the container neck.

The upper cap (2) and the lower ring (1) are articulated to each other by means of a hinged portion (3), which facilitates the user to manipulate the closure cap and prevents both parts from being separated, since the entire set made of a single piece of injectable plastic material.

An outer surface of the side face defined by the body of the upper cap has a non-smooth surface (21), for example, a knurled surface formed by ribs extending from the upper part to the lower part of the body of the upper cap.

The lower ring (1) of the closure cap is made up of an annular-shaped body and has a first section (10) with a diameter greater than a second (11) that corresponds to the remaining section of the annular-shaped body, the hinged portion (3) located in the section (10) with the largest diameter. As can be clearly seen in Figures 1 and 2, both two sections (10) and (11) are joined by two curved sections (12) arranged diametrically opposite each other.

It should be noted that the section with the smallest diameter has a diameter such that it is located in a region (104) defined by two circumferential edges (102, 103) provided in the lower part of the neck of the container, so that during the operation in which the upper cap rises to separate the upper cap (2) from the upper opening of the container, the ring remains in this region at all times. Thus, these two sections with different diameter allow a controlled stretching and subsequent return to its initial position, which allows, once the upper cap has been unscrewed, the lower ring (1) to be stretched comfortably from the upper cap (2), to accommodate part of the section with the largest diameter (10) and the hinged portion (3) below the lower circumferential rim (103) of the container, as shown in figure 5. In this way, the upper cap (2) it is perfectly blocked, as the inside face of the hinged portion (3) abuts the lower part of the circumferential rim (103).

Returning again to the hinged portion (3), as can be seen in Figures 1 and 2, it is formed by an extension of a substantially rectangular shape that is at its upper end attached to the upper cap (2) and its lower end attached to the lower ring (1), such extension being devoid of fold lines, unlike other closure cap systems known in the current art.

Additionally, the closing cap is provided with a tamper evident seal between the upper cap (2) and the lower ring (1). As can be seen, this tamper evident seal is made up of a plurality of break points (4) located on a flange (5) of the lower ring (1) that protrudes outwards and attached to a lower edge of the upper cap (2).

As can be seen in the attached figures, the outwardly projecting rim (5) is located only in the section with the smallest diameter (11).

Figures 7 and 8 show a second preferred embodiment of the closure cap, in which the same parts or pieces are indicated with the same reference numerals as in the above-described example. In this second embodiment, the upper cap (2) advantageously includes a stop means configured to be in contact with the circumferential rim (103) of the neck (100) in the open position of the upper cap with respect to the lower ring, so that it is ensured that the upper cap (2) when it is in the open position, does not rotate in an undesirable way due to the effect of the hinged portion (3) to return to its rest position, that is, when the upper cap (2) is on top of the lower ring (1).

As can be seen, the stop means consists of a flange (22) that extends outward from the inside of the body that forms the upper cap (2) and parallel to the hinged portion (3). As can be seen in Figure 7, said flange (22) adopts a position practically or completely parallel to a longitudinal axis of the neck itself. (100) and the hinged portion (3) is housed below the circumferential rim (103). Lastly, it should be mentioned that the section with a smaller diameter (11) of the lower ring includes a circumferential projection (13) that protrudes outwards. 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 included below.

Claims

1. Closure 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 intended to be coupled to the neck of the container and an upper cap that has an internal region of configured thread to be coupled to the outer tapped portion of a container neck, the upper cap and the lower ring being articulated to each other by means of a hinged portion, such that the lower ring is formed by an annular-shaped body, characterized by the fact that that the lower ring has a section with a diameter greater than the remaining section of the annular body, where the hinged portion is located in the section with the largest diameter.

2. Closing cap for containers according to claim 1, characterized in that it includes a tamper-evident seal between the upper cap and the lower ring.

3. Closing cap according to claim 2, characterized in that the tamper-evident seal is made up of a plurality of break points located on a rim of the lower ring that protrudes outward and attached to a lower edge of the upper cap.

4. Closing cap according to claim 3, characterized in that the outwardly projecting rim is located in the section with the smallest diameter.

5. Closure cap according to any of the preceding claims, characterized in that the hinged portion is formed by an extension of a substantially rectangular shape that is at its upper end attached to the upper cap and its lower end attached to the lower ring, being such an expanse devoid of fold lines.

Closing cap according to any of the preceding claims, characterized in that the upper cap includes a stop means configured to be in contact with a region of the neck of a container in the open position of the upper cap with respect to the ring. lower.

Closure cap according to claim 6, characterized in that the stop means consists of a flange that extends outwardly from the inside of the body that forms the upper cap and parallel to the hinged portion.

8. Closing cap according to any of the preceding claims, characterized in that it is made of a single piece of injection-moldable plastic material.