WO2021094631A1

WO2021094631A1 - Safety stopper

Info

Publication number: WO2021094631A1
Application number: PCT/ES2019/070781
Authority: WO
Inventors: Javier FERNÁNDEZ DÍEZ - LANDE
Original assignee: Lande, S.A.
Priority date: 2019-11-14
Filing date: 2019-11-14
Publication date: 2021-05-20
Also published as: EP4059616A1; EP4059616A4

Abstract

The invention relates to a safety stopper (1) and a container (7), the stopper (1) comprising an inner cylindrical body (2) and an outer cylindrical body (3) that are situated concentrically and connected together along the upper perimeter edges thereof by an annular wall (4), wherein the outer cylindrical body (3) comprises an internal thread situated on the internal cylindrical surface thereof and an external thread situated on the external cylindrical surface thereof, the container (7) comprising a neck (8) with an external thread designed to engage with the internal thread of the outer cylindrical body (3) of the stopper (1), such that, in the coupling position, the neck (8) is accommodated in the space between the cylindrical bodies (2, 3) of the safety stopper (1) and, once accommodated, is locked with an anti-opening system integrated into both the tamper-resistant stopper and the opening of the container.

Description

SAFETY PLUG

TECHNICAL FIELD OF THE INVENTION

The present invention refers to a safety cap, which has application in the industry of non-gaseous fluid dispensing containers, and more specifically in the field of dispensing bottles for liquid soap, making it possible to ensure that the container is not filled in a way not authorized with any other substance different from that contained prior to its first use.

BACKGROUND OF THE INVENTION

At present, liquid soap dispenser packages are known, consisting of bottles that incorporate a metering pump on which the user acts by pressing to produce the dispensing of a quantity of liquid. These dispensing packages are obviously applicable to other substances, also foodstuffs.

The elements that comprise the metering pump include elastic means for the return of the dispensing nozzle, which makes it the most expensive element of the entire package.

Usually, the interior of the container is accessible by any user by unscrewing the metering pump. In this way, the user himself can proceed to refill the contents of the container once it has been completely consumed.

However, there are cases in which for safety or by decision of the product manufacturer itself, it is precisely required to prevent the container from being refilled in a manner not authorized by the product manufacturer or the end user. In other words, there are cases in which it is necessary to guarantee a single use of the container. In such cases, the main problem is that you cannot take advantage of none of the packaging components, including the most expensive of them, which is the metering pump.

DESCRIPTION OF THE INVENTION

A first aspect of the present invention refers to a safety cap, which makes it possible to ensure that the container that incorporates it cannot be reopened and refilled once it has been filled, said safety cap is placed and opened for the first time, which It is carried out when a standard dosing pump is placed on the cap, which can be removed for reuse in other containers, this being the most expensive component of the entire container as a whole, while the safety cap cannot be removed from the container, which prevents it from being refilled.

The safety cap that the invention proposes comprises an inner cylindrical body and an outer cylindrical body located concentrically and joined together by their upper perimeter edges by means of an annular wall.

For its part, the outer cylindrical body comprises an inner thread located on its inner cylindrical surface and an outer thread located on its outer cylindrical surface.

In this way, the internal thread is placed on the thread of the neck of the container, which is usually a bottle, and the external thread allows a standard metering or dispensing pump, that is, a multipurpose commercial metering pump, to be received superiorly. The neck is between the cylindrical bodies of the cap.

The possibility that the height of the outer cylindrical body is less than the height of the inner cylindrical body is contemplated. So that the dimensions of the outer cylindrical body correspond to those of the neck, thus being covered by the cap, while those of the inner cylindrical body are inserted into the body of the container allowing the dispensing and return mechanisms of the dosing pump itself to be housed. . In this sense, for a better adaptation to the contour of commercially available metering pumps, it is contemplated that the inner cylindrical body extends inferiorly, in the opposite direction to that of the annular wall that joins it to the outer cylindrical body, in at least one tapered section. , preferably two. That is, the section of the cylindrical body has sequential concentric sectors that towards the interior of the bottle have a smaller cross section, so that the end has a section equivalent to that of an inner extraction tube of the metering pump, which usually It has a cannula connected to reach the bottom of the container and take advantage of all its contents.

To fully ensure that the container has not been tampered with before its first use, it is contemplated that the safety cap comprises a sealed aluminum foil that is arranged at the top, mouth, of the cap and that occupies the entire interior cross section of the Inner cylindrical body, which breaks with the inner extraction tube or the cannula of the dosing pump when it is coupled to the outer thread of the safety cap. As mentioned, it is contemplated that the aluminum foil has adequate strength to allow its breakage by inserting the pump cannula, in the optional case that the metering pump has a cannula. Thus, it is possible to have a plurality of closed containers with the safety cap of the invention in place, which are opened at the time of placement of the metering pump, which can be placed sequentially in different containers as they are to be used for the consumption or use of its content.

Likewise, it is contemplated that the lower perimeter edge, opposite to that of the annular wall, of the outer cylindrical body ends in a widening with a diameter greater than that of the outer cylindrical body itself.

A second aspect of the invention refers to an assembly formed by a container with a safety cap as described above, where the container comprises a neck with an external thread configured to screw into the internal thread of the outer cylindrical body of the safety cap. . Thus, in the coupling position, the neck is housed in the space between the bodies. cylindrical pieces of the safety plug.

The widening of the outer cylindrical body of the safety cap comprises non-return means configured to collaborate with complementary non-return means located at the base of the neck, so that said non-return means allow the threading in the direction of coupling between the safety cap and the container until the coupling stop position and prevent its unscrewing. The widening allows the concealment and protection of the non-return means, which are contained within said widening.

DESCRIPTION OF THE DRAWINGS

To complement the description that is being made and in order to help a better understanding of the characteristics of the invention, according to a preferred example of a practical embodiment thereof, a set of drawings is attached as an integral part of said description. For illustrative and non-limiting purposes, the following has been represented:

Figure 1.- Shows an exploded view from a top point of view of a standard metering pump, as well as the safety cap and the container of the invention.

Figure 2.- Shows an exploded view from a lower point of view of the elements represented in the previous figure.

Figure 3.- Shows a longitudinal section of the container of the invention with the safety cap of the invention as well as a dosing pump coupled to each other.

Figure 4 shows an elevation view and a cross section of the non-return means located in the area corresponding to the external coupling between the safety cap and the threaded neck of the container neck.

Figure 5.- Shows an elevation and profile view of the cap. security, in which the non-return means located at the end of the inner cylindrical surface of the outer cylindrical body can be seen.

Figure 6.- Shows a longitudinal section of the safety cap.

PREFERRED EMBODIMENT OF THE INVENTION

In view of the outlined figures it can be seen how in one of the possible embodiments of the invention the safety cap (1) that the invention proposes comprises an inner cylindrical body (2) and an outer cylindrical body (3) located concentrically and joined to each other by their upper perimeter edges by means of an annular wall (4). As can be seen above all in figure 6, the outer cylindrical body (3) comprises an inner thread located on its inner cylindrical surface and an outer thread located on its outer cylindrical surface.

The height of the outer cylindrical body (3) is less than the height of the inner cylindrical body (2). So that the dimensions of the outer cylindrical body (3) correspond to those of the neck (8) of the container (7), thus being covered by the cap (1), while those of the inner cylindrical body (2) are inserted in the body of the container (7) allowing to house the dispensing and return mechanisms of the dosing pump itself (A).

In this sense, for a better adaptation to the contour of the commercially available metering pumps (A), the inner cylindrical body (2) is extended inferiorly, in the opposite direction to that of the annular wall (4) that joins it to the outer cylindrical body ( 3), in two additional decreasing sections.

As can be seen in the longitudinal sections of Figures 3 and 6, the safety cap (1) comprises an aluminum foil (5) that occupies the entire inner cross section of the inner cylindrical body (2), which is It breaks with the inner extraction tube or the cannula, not shown, of the metering pump (A) when it is coupled to the outer thread of the safety cap (1). Figures 1 to 4 show an assembly formed by a container (7) with a safety cap (1) according to the invention, where the container (7) comprises a neck (8) with an external thread configured to Screw into the internal thread of the external cylindrical body (3) of the safety plug (1). Thus, in the coupling position, the neck (8) is housed in the space between the cylindrical bodies (2, 3) of the safety cap (1).

In the figures it can be seen that the lower perimeter edge, opposite to that of the annular wall (4), of the outer cylindrical body (3) ends in a widening (6) with a diameter greater than that of the outer cylindrical body (3) itself. Well, said widening (6) of the outer cylindrical body (3) of the safety cap (1) comprises non-return means (9) configured to cooperate with complementary non-return means (9 ') located at the base of the neck (8), of so that said non-return means (9, 9 ') allow the threading in the coupling direction between the safety cap (1) and the container (7) up to the coupling stop position, represented in Figures 3 and 4, and prevent its unscrewed. The widening (6) allows the concealment and protection of the non-return means (9, 9 '), which are contained inside said widening (6), as can be seen in figure 4.

According to the embodiment shown, the non-return means (9) consist of a plurality of oblique flanges located on the internal face of the flare (6) and oriented to allow the threading of the safety cap (1) in the neck (8) of the container (7), as can be seen in figure 4. For its part, the complementary non-return means (9 ') consist of a plurality of protruding teeth according to a cross section that collaborate with the non-return means (9) of the cap security (1).

In view of this description and set of figures, the person skilled in the art will understand that the embodiments of the invention that have been described can be combined in multiple ways within the object of the invention. The invention has been described according to some preferred embodiments thereof, but for those skilled in the art it will be apparent that multiple variations can be introduced in said preferred embodiments without exceeding the object of the invention. claimed.

Claims

1 Safety cap (1), characterized in that it comprises an inner cylindrical body (2) and an outer cylindrical body (3) located concentrically and joined together by their upper perimeter edges by means of an annular wall (4), where said cylindrical body outer (3) comprises an inner thread located on its inner cylindrical surface and an outer thread located on its outer cylindrical surface.

2. Safety cap (1) according to claim 1, wherein the height of the outer cylindrical body (3) is less than the height of the inner cylindrical body (2).

3.- Safety cap (1) according to any of the preceding claims, in which the inner cylindrical body (2) extends inferiorly, in the opposite direction to that of the annular wall (4) that joins it to the outer cylindrical body (3 ), in at least one decreasing section.

4 Safety cap (1) according to any of the preceding claims, comprising an aluminum foil (5) that occupies the entire inner cross section of the inner cylindrical body (2).

5.- Safety cap (1) according to any of the preceding claims, in which the lower perimeter edge, opposite to that of the annular wall (4), of the outer cylindrical body (3) ends in a widening (6) of diameter superior to that of the outer cylindrical body itself (3).

6.- Set of container (7) with a security cap (1), where the security cap (1) is in accordance with any of the preceding claims and the container (7) comprises a neck (8) with a thread exterior configured to thread into the internal thread of the exterior cylindrical body (3) of the safety cap (1), the neck (8) being housed in the space between the cylindrical bodies (2, 3) in the coupling position of the safety cap (1), where the widening (6) of the outer cylindrical body (3) of the safety cap (1) comprises non-return means (9) configured to cooperate with means Complementary non-return (9 ') located at the base of the neck (8), so that said non-return means (9, 9') allow the threading in the direction of coupling between the safety cap (1) and the container (7) up to the coupling stop position and prevent unscrewing.

7. Set according to claim 6, in which the non-return means (9) consist of a plurality of oblique flanges located on the internal face of the widening (6) and oriented to allow the threading of the safety cap (1) in the neck (8) of the container (7), where the complementary non-return means (9 ') consist of a plurality of teeth according to a cross section that collaborate with the non-return means (9) of the safety cap (1).