CN1639021A - Bottle closure with one-way valve - Google Patents

Abstract

A closure for containers of liquids, particularly bottles, the closure comprising an anti-tamper pourer member having valve means which allow liquid to leave the container but not to enter it, a cup with a tubular sleeve closing the pouring hole, as well as an outer security cap and in which the pourer body includes a first sleeve fitted in the container neck, as well as a separate tubular body defining the pouring hole. The separate tubular body is fitted on the outer wall of the container neck. Moreover, axial engagement means and radial engagement means are provided between the tubular body and the outer wall of the container neck and threaded means are provided between the outer wall of the tubular body and the inner wall of the tubular sleeve.

Description

Bottle closure with one-way valve

The present invention relates to a closure for a liquid container, in particular a bottle, having an opening at the end of a neck projecting axially from the container body, the closure comprising a anti-tampon priming mounted in the container neck The filling part has a filling hole and a valve part that allows liquid to flow out of the container but cannot flow into it, a cap with a tubular sleeve extending axially along the neck of the container for opening and closing the filling hole, and There is an outer safety cap disposed above the cap and extending axially around a portion of the container neck, wherein the pouring member includes a first sleeve facing the inside of the container, the first sleeve having a press fit mounted on the container neck part of the inner part, an annular flange integrally formed with the first sleeve, which protrudes radially towards the outside of the neck and engages with the free edge of the neck frontally, including a The flange is integrally formed and extends axially from the flange to the filling hole for a certain distance, and a separate tubular body forms the filling hole at its free end area facing the safety cap, and is connected with the first The first and second sleeves are concentrically disposed.

Container closures of the type described above are known in the art and are used in particular for bottles containing fine wines or beverages.

An example of the prior art is described in the publication WO 96/08421.

According to the prior art described in this publication, it has been pointed out that a separate tubular body forming the filling hole at its free end engages radially and frontally with the flange separately from the sleeve supported from the neck of the bottle. The flange on the top extends to the filling hole.

To obtain the necessary seal, the flange is pressed against the rim of the bottle neck with the above-mentioned sleeve, which is itself held in axial position by an external metal safety cap, usually made of aluminum and fitted to the outer wall of the bottle neck. join together.

This means that, according to the prior art, the seal between the filling part and the neck of the bottle relies on the presence of an outer metal cap which is screwed on the neck on the one hand on the one hand and on the outer wall of the above-mentioned sleeve on the other hand .

This known construction therefore has the disadvantage that, in order to engage it on the bottle neck and the filling part sleeve, a series of circular turning operations are required on the outer metal safety cap, which are carried out after the closure has been mounted on the container .

It is an object of the present invention to provide a closure which is mounted on a container neck as a single component comprising an outer cap with a secure seal by a single axial mounting operation.

Another object of the present invention is to provide a construction of the filling part, which has an anti-corrosion valve part, plugged with a limited axial length beyond the edge of the container neck, so that it can be used for bottles with tapered necks, Without exceeding the overall height dimension of comparable bottles with existing closures but without anti-tampon fillers.

These and other objects, which will become apparent from the following description, are achieved by a closure constructed according to the appended claims.

The invention will now be described in detail with reference to some specific embodiments, given by way of non-limiting examples and illustrated in the accompanying drawings, in which:

Figure 1 is a partial cutaway side view of a first embodiment of a closure according to the invention having a metallic outer safety cover,

Figure 2 is a partial sectional side view of a second embodiment of a closure according to the invention having a metallic outer safety cover as shown in Figure 1,

Figure 3 is a partial sectional side view of a third embodiment of a closure according to the invention having a metallic outer safety cover as shown in Figure 1,

Figure 4 shows a closure as in the embodiment of Figure 1 with an outer safety cover of plastics material.

Referring to the above drawings and in particular to FIG. 1 , the neck of the container is indicated at 1 and the container body at 2 .

The neck 1 has a free flange 3 and an outer wall 4 with an annular step 5 under which there is at least one set of axial knurlings distributed around the circumference of the outer wall and designated 6 .

In particular, the container is a wine bottle of known type with a conical or elongated neck.

The closure comprises a priming part, designated 7, consisting of a first sleeve 8 towards the inside of the neck 1, with a portion 9 fitted in the neck in a press fit.

The valve part consisting of the ball 8a and the hole 8b is placed inside the sleeve 8 entirely in the conventional manner.

The pouring part has a flange 10 which is formed integrally with the first sleeve and which bears frontally on the edge 3 of the neck 1 by means of ribs 11 of the flange 10 .

The flange 10 also forms a surface 12 from which a second sleeve 12 integrally formed with the flange extends in the opposite direction in which the sleeve 8 extends.

The sleeve 8 with the flange 10 and the sleeve 13 are made of a soft plastic material, eg polyethylene.

The closure also comprises a tubular body 14 constituting a part of the filling part 7 , although this tubular body is a separate part from the sleeves 8 and 13 .

The tubular body 14 forms a filling hole 15 in the region of its free end and has an engagement surface 16 which engages frontally with the surface 12 of the flange 10 .

The tubular body 14 is also engaged radially with the second sleeve 13 and axially with the neck 1 of the bottle by means of an annular rib 17 supported by the portion 14a and mounted to the step of the outer wall 4 of the neck 1 5 below.

Finally, the tubular body 14 engages with corresponding embossings 6 of the neck 1 , preventing any possibility of rotation around the neck 1 , by means of a plurality of axial ribs 18 , also supported by the portion 14 a.

Tubular body 14, including portion 14a, is made of a rigid plastic material, such as polyethylene.

A cap, designated 19 , is placed above the pouring part 7 and comprises a transverse wall 20 and a tubular sleeve 21 . The sleeve 21 has a thread 22 facing the portion 14 a of the tubular body 14 for engaging a complementary thread 23 formed in the outer wall of the portion 14 a of the tubular body 14 .

A collar 24 protrudes from the transverse wall 20 of the cap 19 towards the filling hole 15 .

In the embodiment of FIG. 1 , the collar 24 is installed axially in the second sleeve 13 using slight pressure, thereby being fitted between the tubular body 14 and the collar 24 , the second sleeve extending from the flange 10 . Extend to the vicinity of the perfusion hole 15.

An outer safety cap 25 is arranged over the outside of the cap 19 and extends axially along the outer wall of the neck 1 of the bottle through a tubular portion 26 .

The outer lid 25 with tubular portion 26 has a conventional annular tear zone 27 for initial opening of the closure.

The outer cover 25 is also held tightly against rotational movement of the lower cover 19 due to the engagement of the axial embossments 28, which are supported by the tubular portion and distributed around its circumference, and which correspond to the corresponding lower cover 19. Axial embossments 29 engage, carried by the tubular sleeve 21 of the cover 19, also distributed around its circumference.

Finally, the outer foil cover 25 is fastened to the portion 14a of the tubular body 14 by means of an annular groove 30 protruding towards the neck of the bottle and engaging under the rim 31 of the portion 14a.

Referring to Figure 2, it can be seen that the seal has been modified. In this case, a second sleeve, shown as 13a in FIG. 2, extends axially for a short distance from the flange 10 to the filling hole 15 and is radially connected to the tubular body 14 by means of an annular rib 13b. The inner walls 14b are in contact to improve their sealing.

In this embodiment, the collar 24a of the cap 19 is also in direct contact with the wall 14b of the tubular body 14 .

Referring to the embodiment shown in FIG. 3, it can be seen that although the collar 24a of the cover 19 is directly in contact with the surface 14b of the tubular body 14 in the embodiment of FIG. Extends a very limited distance 13c and does not have to be in radial contact with surface 14b.

However, in the embodiment of FIG. 3 the flange 10 has an annular rib 10a radially interfering with the inner wall of the portion 14a of the tubular body 14 in its portion facing the neck 1 of the bottle.

Referring now to Figure 4, it can be seen that although the structure of the closure shown corresponds exactly to that shown in Figure 1, the outer safety cap 25a and its tubular portion 26a disposed above the neck of the bottle are made of plastic material rather than sheet metal.

The connection between the outer cover 25a and the cover 19 is realized by the axial ribs 28a and corresponding axial ribs 29a, the axial ribs 28a are supported by the part 26a of the outer cover and distributed around its circumference, while the shaft The ribs 29a are supported by the tubular sleeve 21 of the cover 19 and are also distributed around its circumference.

The engagement between these ribs prevents any rotational movement between the outer cover 25a and the underlying cover 19 .

An axial engagement similar to that described with reference to the embodiment of FIG. 1 is also achieved in the embodiment of FIG. 4 by means of an annular rib 30a of the outer cover which engages the portion 14a of the tubular body 14 of the irrigation part 7 Below the free edge 31a.

It can be understood from the foregoing that, according to the invention, in all the embodiments shown, the pouring part 7, already provided with a cap and an outer safety cap, is secured by the engagement of the annular rib 17 under the step 5 of the container neck 1 to the neck 1 of the container, and this is achieved by a single axial fixing operation at the neck.

This engagement presses the engagement surface 16 onto the face 12 of the flange 10 to ensure the engagement of the flange with the front face of the container neck rim 3 .

In the closure according to the invention, the outer sheet metal safety cap 25 is not used to secure the priming part to the container neck in any way, and therefore does not have to be subjected to any prior art closure procedures after the closure has been installed on the container. Required pivot operation.

Thus, this construction also allows the use of outer safety covers of plastic material, such as those indicated at 25a and 26a in FIG. 4 .

Thus, this closure according to the invention can be made from all its assembled parts, including the outer safety cap, and can be fed to a bottling machine which only needs to pass through the longitudinal axis of the container neck. An axial installation operation installs it on the container.

Furthermore, the construction according to the invention provides a closure with a priming part having an anti-tampage valve with a small axial dimension, so that this type of safety closure can be installed even in container, without altering the overall height of the container, if it is fitted with an existing closure with a cap-like stopper.

Claims (8)

1. one kind is used for liquid container, especially for sealing of bottle, have and be positioned at the terminal opening of neck (1), this neck axially stretches out from container body (2), this seals and comprises the anti-filling pouring member (7) that is installed in container neck, this pouring member (7) has fill orifice (15) and can make liquid reserve container (2) but can not enter wherein valve member (8a, 8b), lid (19) with tubular sleeve (21) axially extends along container neck (1), be used for opening and sealing fill orifice (15), and the outer safety cap (25) that is arranged on lid (19) top and axially extends around at least a portion of the tubular sleeve (21) of the lid (19) of container (2), and wherein pouring member (7) comprises first sleeve pipe (8), this first sleeve pipe is towards the inboard of container (2), have with press-fit manner and be installed in part (9) in the container neck, ring flange (10), this ring flange and first sleeve pipe (8) form, to the outer radial of neck (1) ground stretch out and with free edge (3) positive engagement of neck, second sleeve pipe (13), this second sleeve pipe and flange (10) form, and axially extend a segment distance to fill orifice (15) from flange (10), an and independent tubular body (14), this tubular body forms fill orifice (15) in its free end zone towards lid (19), and with first and second sleeve pipes (8,13) be provided with one heart, it is characterized in that independent tubular body (14) is installed on the outer wall (4) of container neck (1) by the part on it (14a), and radially engage with second sleeve pipe (13) of pouring member (7), and axially engage by face of joint (16) with the ring flange (10) of this pouring member, between the outer wall (4) of the part (14a) of tubular body (14) and container neck (1), be provided with axial coupling unit (5,17) and radial engagement device (6,18), and screw device (22,23) be arranged at tubular body (14) part (14a) outer wall and and the inwall of the tubular sleeve (21) that forms of lid (19) between.

2. according to the sealing of claim 1, it is characterized in that lid (19) has the axle collar (24a), the lid axle collar axially stretches out towards the inboard of container neck (1), radially engages near the hole (15) of pouring member (7) with the inwall (14b) of tubular body (14).

3. according to the sealing of claim 1, second sleeve pipe (13) that it is characterized in that bottling body (7) axially roughly extend to fill orifice (15) near.

4. according to the sealing of claim 1 and 3, it is characterized in that lid (19) has the axle collar (24), this axle collar axially stretches out towards the inboard of container neck (1), and radially engages with second sleeve pipe (13) of pouring member (7).

5. sealing according to claim 1 to 4, it is characterized in that outer safety cap (25) made by foil, and in its tubular portion (26), has axial embossing (28) around its circle distribution, this embossing (28) with engage around circumference by following axial embossing (29) tubular sleeve (21) supporting of lid (19) and that distribute on it, with opposing and prevent to rotatablely move.

6. sealing according to claim 5, it is characterized in that outer safety cap (25) also has the annular recess (30) that is formed on its tubular portion (26), this annular recess (30) engages with the free edge (30) of the part (14a) of pouring member (7) tubular body (14) by its projection towards container neck, to resist and to prevent axial motion.

7. sealing according to claim 1 to 4, it is characterized in that outer safety cap (25a) made by plastic material, and have a plurality of axial rib-shaped pieces (28a) at its tubular portion (26a), this rib-shaped piece is around its circle distribution and towards the neck of container, this axial rib-shaped piece combines with the following axial rib-shaped piece (29a) that is supported by the tubular sleeve (21) that covers (19), to resist and to prevent to rotatablely move.

8. sealing according to claim 7, the outer safety cap (25a) that it is characterized in that plastic material has the annular rib-shaped piece (30a) that is formed in the tubular wall (26a), rib-shaped piece (30a) engages towards the neck of container and with the free edge (31a) of the part (14a) of the tubular body (14) of pouring member (7), with opposing and prevent axial motion.

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