RU2512081C1 - Sealing device with opening indicator - Google Patents

Abstract

FIELD: packing industry.

SUBSTANCE: sealing device includes at least a drain and shut-off sleeves with threaded sections. Inner surface of shut-off sleeve features an annular support, and side wall of drain sleeve has several "П"-shaped slits forming stop tabs connected to the side wall of drain sleeve at the side of threaded section and capable of shifting by container crown from the first position where stop tabs are partially inside the drain sleeve to the second position where stop tabs are partially outside of the drain sleeve. Prismatic shape of stop tabs is preferred. Sealing device can have a housing covering drain and shut-off sleeves, with perforation along the line between drain and shut-off sleeves. Perforation can be made in the form of alternating bridges and slits.

EFFECT: sealing device design makes concealing of unauthorized opening impossible and prevents shut-off sleeve twist during repeated screwing onto drain sleeve.

4 cl, 3 dwg

Description

The invention relates to closures for containers, mainly for bottles with an indication of their opening.

From patent RU 78172 U1 for utility model “Capping device with a conical indicator belt”, IPC B65D 39/06, publ. November 20, 2008, a capping device with an opening indicator is known, comprising a drain sleeve with an external thread mounted on the rim of the container to be sealed, a locking sleeve screwed onto the thread of the drain sleeve, and an aluminum casing covering the drain and locking sleeve and provided with perforations made along the line between the drain and locking bushings.

The tamper indicating device included in the capping device is an annular indicator band of a conical shape, made on the drain sleeve. In the initial state, the annular indicator belt is held by the wall of the aluminum casing. When the locking sleeve is turned away, the casing is divided along the perforation line, while the annular indicator belt, which has elastic and flexible properties, leaves the casing, preventing the locking sleeve from moving to its original position and becoming visually accessible.

Indication of opening is carried out by changing the position of the locking sleeve relative to the initial position and the release from under the casing of the annular indicator belt.

From the patent RU 79875 U1 for the utility model “Capping device”, IPC B65D 41/32, publ. 01/20/2009, a tamper-evident closure device is known, comprising a drain sleeve with an external thread mounted on the rim of the container to be sealed, a locking sleeve screwed onto the thread of the drain sleeve, and an aluminum casing covering the drain and locking sleeve and provided with perforations made along the line between the drain and locking bushings.

The tamper indicating device included in the closure device is an annular indicator band of a conical shape, made on the locking sleeve. In the initial state, the annular band is held by the wall of the aluminum casing. When the locking sleeve is unscrewed, the casing is divided along the perforation line, while the annular indicator band of the conical shape, having elastic and flexible properties, leaves the casing, preventing the locking sleeve from moving to its original position and becoming visually accessible.

The disadvantages of the above technical solutions are associated with the use of an aluminum casing for holding an elastic annular indicator belt, which is both an indication tool and a tool preventing the locking sleeve from returning to its original position after the container is opened for the first time. The disadvantages are as follows.

1. For such structures, the use of an aluminum or plastic casing as part of a closure device is mandatory, since the casing holds the elastic annular indicator band in the cocked position. At the same time, the use of a casing as part of a closure device may not always be justified, since it objectively complicates the design, increases the complexity of manufacturing, and negatively affects the cost of the final product.

2. The indicator belt can be removed by an attacker with a knife, after which the locking sleeve can be returned to its original position, while the tamper indication will be completely absent.

3. Indication of opening is visually carried out, in fact, only by the presence of an indicator belt; however, the non-return of the sleeve to its original position is visually little noticeable due to the small width of the girdle (about 0.3 mm) and the deflection of the casing with repeated screwing.

For the prototype of the claimed invention, the design of a closure device known from patent EP 1743846 B1 for the invention “Device for closing bottles of alcoholic drinks and spirits”, IPC B65D 55/02, publ. December 10, 2008

The closure device adopted for the prototype includes a drain sleeve mounted on the rim of the container to be sealed and having an external thread, a locking sleeve screwed onto the drain sleeve, and a casing covering the locking and drain sleeve, and provided with perforations made in the line between the drain and locking bushings. Moreover, the prototype device contains a tamper indicating means, including several lever elements attached from the inside to the bottom of the locking sleeve and configured to move between the first position in which they are located before the first opening of the closure device and the second position in which they are located after the first autopsy. At the same time, in the second position, said lever elements abut against the surface of the drain sleeve and prevent the locking sleeve from returning to its original position, leaving an indicator ring opening opening with a width of about 2.5 mm.

The advantages of the prototype are the refusal to use an annular indicator belt, the presence of a wide indicator annular gap, signaling the opening of the closure device, the increased resistance of the closure device to malicious removal or masking of the first tamper indication.

The disadvantages of the prototype are the increased complexity and high complexity of the manufacture of the locking sleeve, the lack of reliability of the operation of the tamper indicating means and the inconvenience of using the device, which are caused by the possibility of the skew of the locking sleeve relative to the drain sleeve when re-closing the closure device due to incomplete movement of individual lever elements from the first position to the second one. As a result of skewing, the locking sleeve cannot be screwed onto the drain sleeve correctly, and the container cannot be hermetically closed.

The technical result, to which the claimed technical solution is directed, is to create a closure device with tamper indicating, characterized by increased reliability of the means of indication, increased ease of use and low cost.

The invention can be successfully implemented in the design of a capping device, including at least a drain and locking sleeve, equipped with threaded sections.

The technical result is achieved by the fact that in the capping device with a tamper indication, the inner surface of the locking sleeve is provided with an annular stop, and a series of U-shaped slots are made in the side wall of the drain sleeve with the formation of thrust lugs connected to the side wall of the drain sleeve from the side of the threaded section and made with the ability to move the container with a whisk from the first position, in which the petals are partially located inside the drain sleeve, in the second, “cocked” position, in which the petals h They are located outside the drain sleeve and are internally supported by the surface of the container whisk.

Moreover, in a preferred embodiment of the invention, the thrust lobes of the drain sleeve can be made in the form of prisms.

The closure device may be provided with a casing covering the drain and locking bushings, and provided with perforations made along the line between the drain and locking bushings. The perforation can be performed, for example, in the form of alternating jumpers and slots.

The invention is illustrated by the following drawings.

Figure 1 shows the drain and locking sleeve of the capping device assembly, with a cut;

Figure 2 shows a capping device in a closed initial state, with a slit;

Figure 3 shows the capping device in a re-closed state, with a cut.

The positions in the drawings indicate:

1 - drain sleeve;

2 - threaded section of the drain sleeve;

3 - locking sleeve;

4 - threaded section of the locking sleeve;

5 - persistent petals on the drain sleeve;

6 - annular emphasis on the locking sleeve;

7 - the lower part of the casing;

8 - the upper part of the casing;

9 - perforation on the casing;

10 - container whisk;

11 - indicator annular gap.

The inventive closure device (see Figure 1) contains at least a drain sleeve 1, the outer surface of which is provided with a threaded section 2, and a locking sleeve 3, the inner surface of which is provided with a threaded section 4.

The inventive closure device also includes tamper indicating means, including an annular stop 6 interacting with each other, made on the inner surface of the locking sleeve 3, and stop lobes 5 made integral with the drain sleeve 1 and connected to the side wall of the drain sleeve from the side of its threaded section. Thrust petals 5 are separated on three sides from the wall of the drain sleeve with U-shaped slots. In the initial first position, the thrust petals 5 are partially located inside the drain sleeve, as shown in FIG.

In a preferred embodiment, the thrust petals 5 are in the form of prisms, which does not exclude the possibility of making the petals of another, more complex, shape.

The assembly of the device is performed in the following sequence.

The locking sleeve 3 is screwed onto the drain sleeve 1 (see Figure 1). While the thrust petals 5 are partially located inside the drain sleeve 1 and do not interfere with the movement of the annular stop 6 of the locking sleeve 3.

On the assembled bushings 1, 3 in an embodiment of the invention, a casing with a lower part 7 and an upper part 8 can be fitted, for example, by means of a tight mechanical or adhesive fit. The casing is provided with a perforation 9 made along the line between the drain 1 and the locking 3 bushings. Perforation can be made in the form of alternating jumpers and slots.

Then the capping device, which includes the drain sleeve 1, the locking sleeve 3 and, in the embodiment, the casing, is transported to the bottling plant, where it is upset with the drain sleeve 1 on the container whisk 10 and latched onto it (see Figure 2 ) When upsetting the drain sleeve 1 onto the container rim 10, the stop lobes 5 of the drain sleeve 1 are supported by the outer surface of the container rim 10 and move due to elastic deformation to the surface of the ring stop 6 of the locking sleeve 3 to the second, cocked position, as shown in FIG. 2.

At the first opening of the closure device, which is performed by unscrewing the locking sleeve 3, the deformable annular stop 6 on the locking sleeve 3 due to its ductility and shape passes through a series of thrust lobes 5.

When you repeatedly tighten the locking sleeve 3 (see Figure 3), the annular stop 6 due to its shape and design of the stop lobes 5 stops on the stop lobes 5, preventing the return of the lock sleeve 3 to its original position. As a result, an indicator annular gap 11 is formed between the bushings 3 and 1, signaling the opening of the closure device.

If there is a casing in the design of the capping device at the first opening of the capping device, the casing breaks along the perforation line 9, while the upper part 8 of the casing moves together with the locking sleeve 3, and the lower part 7 of the casing remains on the drain sleeve 1. Between parts 7, 8 of the casing a wide indicator annular gap 11 appears, which remains when the closure is re-closed.

Thanks to the claimed technical solution, after the first opening of the closure device, there is no way to hide this fact. Thus, the claimed technical solution allows to increase the reliability of the indication of unauthorized opening of the sealed container.

The proposed design of the closure device completely eliminates the possibility of a skew of the locking sleeve when re-screwing it onto the drain sleeve, thereby increasing the usability of the device, and the container can be hermetically closed again.

The inventive device can be used both with a casing and without it.

The translation of the thrust petals on the drain sleeve into the “cocked” state is carried out directly in the process of capping containers.

The locking sleeve has a simple design and is technologically advanced in production.

Claims (4)

1. A capping device with an indication of opening, comprising at least a drain and locking sleeve provided with threaded portions, characterized in that the inner surface of the locking sleeve is provided with an annular stop, and a series of U-shaped slots are formed in the side wall of the drain sleeve with the formation of resistant of petals connected to the side wall of the drain sleeve from the side of the threaded section and made with the possibility of moving the rim of the container from the first position at which the thrust petals are partially located inside and the discharge sleeve, to a second position in which the bearings are located outside the pitch partially discharge sleeve. 2. The capping device according to claim 1, characterized in that the thrust lobes are made in the form of prisms. 3. The capping device according to claim 1, characterized in that the capping device is equipped with a casing covering the drain and locking sleeve, with perforation made along the line between the drain and locking sleeve. 4. The capping device according to claim 3, characterized in that the perforation is made in the form of alternating jumpers and slots.

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