ES1216735U - GLASS CONTAINER WITH PLUG (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

A glass container with stopper including a stopper (40) and a container body formed by a tubular glass wall (10) extending along a central axis (E) with a mouthpiece (13) in a end of the tubular wall (10) and with an end opposite the closed mouth (13), said tubular wall (10) defining an inner tubular face (12), an outer tubular face (11); said tubular wall (10) including at least one neck section (A), an intermediate section (B), a widening section (C) and a successive wide section (D), aligned and with their respective inner tubular faces (12)) connected to each other; where: - the neck section (A) includes the mouthpiece (13) and a protruding annular neck (20) by the extrados of the tubular wall (10) in a position adjacent to the mouthpiece (13), said ring neck (20) endowed with two annular neck faces (24) protruding from the outer tubular face (11) and between which an outer face of the neck (21) is defined in the peripheral zone furthest from the central axis (E); - the intermediate section (B), in at least one portion adjacent to the neck section (A), has the outer tubular face (11) with a smaller cross section than the cross section of the outside face of the neck (21), defining an annular outer groove (30) between the neck (20) and the widening section (C); - the widening section (C) connects the intermediate section (B) with the wide section (D) and comprises on its outer tubular face (11) successive cross sections of increasing size with respect to the mouthpiece (13) from a minimum coinciding section with the section of the intermediate section (B) up to a maximum section coinciding with the initial section of the wide section (D) and greater than the cross section of the external surface of the neck (21); characterized because the cap (40) includes a tubular plug wall (41) which, in closed position, surrounds and covers the neck section (A) and the intermediate section (B); said tubular plug wall (41) has an internal face of plug (42), facing the outside face of the neck (21) and the outer wall face (11) of the intermediate section, and an outer face of the cap (43) which, in closed position, is flush with the outer wall face (11) of the wide section (D). (Machine-translation by Google Translate, not legally binding)

Description

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DESCRIPTION

GLASS CONTAINER WITH PLUG

Technical field

The present invention relates to the field of glass containers with a stopper, more specifically to glass containers manufactured automatically and provided with a mouthpiece, of an annular neck adjacent to said mouth-shaped mouthpiece of protuberant glass ring around a neck of the said container being molded simultaneously with the rest of the container and used as a point of grip for the extraction of the container from the interior of the mold after its manufacture.

State of the art

Glass container with a cap are known in the state of the art. In those containers produced automatically by blowing the glass into a mold, an annular neck is also included around the tubular neck of the container, in a position close to the mouth of the neck. Said necklet serves to grab the container and to remove it from the mold automatically after its manufacture, however it produces a projection on the outside of the tubular neck, being able to be a hindrance for the manipulation of the container, or for the placement of labels on said neck, and preventing the placement of a plug that is flush with the rest of the neck of the container or with the rest of the body of the container.

Brief Description of the Invention

The present invention concerns a glass container with a stopper, especially automatically produced glass containers.

Glass containers require, for their automatic manufacture, an annular shoulder-shaped shoulder adjacent to the mouth of the neck of the container that allows a firm grip of the container during its manufacture and for its extraction from the inside of the mold after its manufacturing by blowing .

Typically said annular projection is achieved by including a protruding annular neck in the form of annular wall which protrudes from the outer face of the neck of the container by providing an annular projection that performs the described function.

There are many types of containers and containers that have this configuration, for example, beverage bottles with a metal, screw, cork or plastic cap, jars with screw caps, perfume and cosmetic bottles, etc.

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The usual way to obtain said neck of the container and to achieve the desired precision is to mold a preform that includes that most critical area adjacent to the mouth, including the neck and the inner tubular face closest to the mouth, pressing the molten glass inside the mold with a gas under pressure or with a plunger, thus making the glass compact and perfectly adjusted to the mold, achieving great precision in its dimensioning.

Then and before the glass hardens, the preform obtained is extracted and introduced into another blow mold, where the rest of the neck and the body of the container are formed by blowing pressurized air through the mouth formed in the preform, which expands the preform until it adapts to the shape of the mold, but without the parts closest to the mouth being altered, thus respecting the strict tolerances of that part, while in the rest of the container the thickness will remain within higher tolerances Subsequently, the already formed container is removed from the blow mold.

In the removal operations of both the preform and the container inside the molds the neck is essential in allowing a correct grip of the glass by the automatic production apparatus.

Thus, the proposed glass container includes, in a manner known per se, a stopper and a container body formed by a tubular glass wall that extends along a central axis with a mouth at one end of the tubular wall. and with an end opposite the closed mouth, said tubular wall defining an inner tubular face, an outer tubular face; said tubular wall including at least one neck section, an intermediate section, a successive widening section and a wide section, aligned and with their respective inner tubular faces connected to each other; where:

• the neck section includes the mouth and a protruding annular neck by the extrados of the tubular wall in a position adjacent to the mouth, said annular neck provided with two annular neck faces projecting from the outer tubular face and between which an outer face of the neck is defined in the peripheral area furthest from the central axis;

• the intermediate section, in at least one portion adjacent to the neck section, has the outer tubular face with a smaller cross section than the cross section of the outer neck face, defining an annular outer groove between the neck and the widening section ;

• the widening section connects the intermediate section with the wide section and comprises successive cross-sectional sections on its outer tubular face

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increasing with respect to the opening from a minimum section coinciding with the section of the intermediate section to a maximum section coinciding with the initial section of the wide section and greater than the cross section of the outer face of the neck.

It will therefore be understood that the proposed container consists of a tubular wall that develops around a central axis, said tubular wall being provided with a closed end and another open end defining a mouth that allows access to the interior of the container. The tubular wall therefore consists of an outer tubular face and an inner tubular face.

The cross-section, with respect to the central axis, of the tubular wall will be variable along said central axis defining different sections thereof forming the container. The sections of which the proposed container consists are at least one section of the neck, adjacent to the mouth, followed by an intermediate section and a widening section, followed by a wide section.

Said sections are defined mainly based on the size of the cross section of the outer tubular face.

The neck section includes a protruding perimeter wall of the outer tubular face that forms a neck, therefore said wall having a cross section greater than that of the outer tubular face in said neck section.

The intermediate section has at least a narrower portion than said wall, so that said wall protrudes from the outer tubular face, and is connected with a widening section to the wide section.

The connection between the widening section and the wide section has, on its outer tubular face, a cross section with a size larger than the size of the outermost cross section of the neck, in that the projection of the neck is smaller than the projection of said connection between the widening section and the wide section.

The inner tubular face of all sections is connected in continuity.

All these characteristics allow an automated manufacture of the container, thanks to the existence of the neck section and the intermediate section, which define the annular shape in the form of a neck that provides a grip for the extraction of the bottle from the blow mold with means automatic

The widening section and the wide section allow increasing the capacity of the container without increasing the size of the mouth.

The proposed tubular wall also includes the following features:

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• the cap includes a tubular cap wall that, in a closed position, surrounds and covers the neck section and the intermediate section;

• said tubular cap wall has an inner cap face, facing the outer neck face and the outer wall face of the intermediate section, and an outer cap face which, in a closed position, is flush with the outer tubular face of wide stretch wall.

Therefore, the present invention proposes a plug which on the one hand conceals both the neck section and the intermediate section, while being externally flush with the outer tubular face of the wide section.

It will be understood that below the wide section there may be other sections with larger enlargements of the tubular wall.

This feature allows a container to be obtained which, when closed with the cap, lacks protuberant projections externally in the area adjacent to the mouth, that is to say that the cap and the wide section are flush without forming any protuberance.

This feature offers, in addition to a particular aesthetic effect, other advantages related to the absence of projections, such as facilitating the application of messages, labels, serigraphs, etc ... that have continuity from the cap to the wide section of the container .

This solution also facilitates the stacking of, for example, wine bottles provided with this solution, by inserting the necks of a lower stratum of bottles into the interspaces between the bottles of an upper stratum. The absence of projections in the neck area facilitates this type of stacking.

The tubular plug wall may also cover the widening section, then being at one edge of the tubular plug wall in contact with the wide section.

Alternatively, it is contemplated that there is a separation between the tubular plug wall and the wide section, leaving a gap through which at least a part of the widening section can be visible.

Preferably the tubular cap wall will be at least 1mm thick, without said thickness being a protrusion from the wide section of the tubular wall of the container.

Said tubular plug wall which is a rigid wall is also contemplated.

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According to a proposed embodiment the annular neck has a height, in the direction of the central axis equal to or less than 6mm.

It is further proposed that the plug include a central cylindrical body inserted through the mouth and in contact with the inner tubular face, for example a central body of cork, or plastic, or including elastic o-rings around it.

The cap may have its inner cap face in tight contact with the outer neck of the neck, said adjusted contact being able to constitute a tight seal.

According to another embodiment, the intermediate section includes a widening in a portion away from the neck section, the cross-section of the outer tubular face in said widening being equal to or greater than the cross-section of the outer neck of the neck. The outer tubular face, in the widening of the intermediate section, may then include protrusions that define a thread. Including the plug on its inner face of a plug a thread complementary to the thread of the intermediate section, will allow a closure of the mouth by threading.

According to one embodiment, the entire outer tubular face of the intermediate section has a smaller cross section than the cross section of the outer neck face, that is to say that the entire intermediate section is smaller than the neck.

As regards the cross section of the inner tubular face of the tubular wall, according to an embodiment in the neck section and in the intermediate section, said inner tubular face consists of successive cross sections of constant and equal shape and size the cross section of the mouthpiece or of equal shape and decreasing size in relation to the cross section of the mouthpiece, said sections being capable of being obtained by molding, thanks to the fact that a stud can be inserted to mold the inner tubular wall through the mouthpiece and after molding remove said pin through said mouthpiece.

On the contrary, the cross-section of the inner tubular face in the widening section and in the wide section is larger than the cross-section of the mouthpiece, said sections being capable of being obtained by blowing, since they could not be manufactured by means of a molding process because the inner mold cannot be removed through the mouth.

Alternatively, it is proposed that the inner tubular face, in the neck section and in the portion of the intermediate section adjacent to the neck section, consists of successive cross sections of constant shape and size and equal to the cross section of the mouthpiece or of equal and decreasing size in relation to the cross section of the

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mouthpiece, said sections being capable of being obtained by molding, while the cross-section of the inner tubular face, in the portion of the intermediate section away from the neck section, in the widening section and in the wide section, is greater than the cross section of the mouthpiece, said sections being capable of being obtained by blowing.

In an exemplary embodiment, the wide section has a constant cross-section and equal to the maximum cross-section of the widening section.

Alternatively, it is contemplated that the wide section has an increasing cross-section with respect to the mouth, said wide section defining an inclination angle of less than 30 ° with respect to the central axis.

On the contrary, the widening section can be perpendicular to the central axis or define an angle of inclination with respect to the central axis greater than 30 °.

The annular neck has one of its annular faces of the neck flush with the mouthpiece, adding the thickness of the annular neck to the thickness of the tubular wall in all said section of neck.

It is also contemplated that the difference in size between the maximum cross-section of the widening section and the neck section is equal to the thickness of the tubular plug wall.

It will be understood that references to geometric position, such as parallel, perpendicular, tangent, etc. they admit deviations of up to ± 5 ° with respect to the theoretical position defined by said nomenclature.

It will also be understood that any range of values offered may not be optimal in their extreme values and may require adaptations of the invention for said extreme values to be applicable, said adaptations being within the reach of one skilled in the art.

Other features of the invention will appear in the following detailed description of an exemplary embodiment.

Brief description of the figures

The foregoing and other advantages and features will be more fully understood from the following detailed description of an exemplary embodiment with reference to the accompanying drawings, which should be taken by way of illustration and not limitation, in which:

Fig. 1 shows a longitudinal section of an upper portion of the proposed glass container, which includes the mouth and a cap attached thereto, according to a first

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embodiment in which the tubular wall is cylindrical, with variations in diameter in the different sections, forming a conical portion in the widening section;

Fig. 2 shows a longitudinal section of an upper portion of the proposed glass vessel, which includes the mouth and a cap attached thereto, according to a second embodiment in which the tubular wall is cylindrical in the neck section and in the intermediate section, the tubular trunk wall being conical in the wide section, and in the form of a ring perpendicular to the central axis in the widening section;

Fig. 3 shows a longitudinal section of an upper portion of the proposed glass container, which includes the mouth and a cap attached thereto by means of a thread, according to a third embodiment in which the tubular wall is cylindrical, with variations in diameter in the different sections, the inner tubular wall being of the same diameter as the mouth in the entire length of the neck section and in the portion of the intermediate section adjacent to the neck section, the rest of the intermediate section being larger in diameter;

Fig. 4 shows the same embodiment as Fig. 3 but the inner tubular wall being of the same diameter as the mouth on the entire length of the neck section and the intermediate section;

Fig. 5 shows a view similar to Fig. 1 but with a cap that includes ornaments.

Detailed description of an embodiment example

Fig. 1 shows a view of a first embodiment of the tubular glass container neck with illustrative non-limiting character.

In this first embodiment it is proposed that the container neck be of circular section, although of course it could be oval, square, rectangular, or any other shape without affecting its characteristics.

The proposed neck consists of a tubular wall 10, which defines an outer tubular face 11, an inner tubular face 12 and a mouth 13, whereby the inner tubular face 12 communicates the interior of the container body with the exterior thereof.

On said outer tubular face 11 of the tubular wall 10 is an annular neck 20, which is in the form of a protuberant wall connected to the tubular wall 10, the thickness of the glass of the tubular wall 10 being added together with the thickness of the glass of the neck 20 generating a portion of the neck of the container with a thickness greater than that of the rest of the tubular wall 10. The aforementioned neck 20 consists of an outer face of neck 21, this being the face more

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exposed from the neck 20, bounded by two annular faces of the neck 24, which separate and distance the outer face of the neck 21 from the outer tubular face 11.

The aforementioned neck 20 and the tubular wall 10 will be made of the same material and will be integral with one piece.

In accordance with the embodiments shown in Figs. 1, 2, 3, 4 and 5 the section of the tubular wall 10 where the neck 20 is located and the mouth 13 is called the neck section A. According to the proposed invention others sections are defined in continuity with said stretch of neck A, in this order being an intermediate section B, a stretch section C and a wide section D.

The wide section D corresponds to a section of the tubular face 10 with an outer and inner tubular wall 11 and a larger diameter than in the preceding sections A, B and C.

The intermediate section B, in at least one portion adjacent to the neck section A, has the outer tubular face with a smaller cross section than the cross section of the outer neck face 21, defining an annular outer groove 30 between the neck and the stretch of extension C.

It is also proposed to include a plug 40 attached to the tubular wall 10 in an area coinciding with the mouth 13, so that said mouth 13 is sealed by the plug 40.

It is proposed that the cap 40 also includes a tubular wall of cap 41 which, as a skirt, is arranged around the neck section A and the intermediate section B of the tubular wall 10, hiding the neck 20 and also the intermediate section B .

The tubular plug wall 41 has an inner face of plug 42 facing the outer face of the neck 21 and the outer tubular face 11 of the tubular wall 10, as well as an outer face of plug 43 accessible from the outside and flush with the face outer tubular 11 of the wide section D of the tubular wall 10.

That is to say that the outer tubular face 11 of the wide section D, in its region adjacent to the outer face of cap 43, and the outer face of cap 43, in its area adjacent to the wide section D, are level, in continuity one respect to the other, offering the illusion of being a continuous surface, although there may be a gap between them.

In the example shown in Figs. 1.3 and 4, both the wide section D and the tubular plug wall 41 have a constant cross section of identical size on the outside, for example, both elements having a cylindrical cross section of identical shape.

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outer diameter, although it could also be square, oval, hexagonal, or any other.

In the example shown in Fig. 2, the wide section D has a trunk-pyramidal geometry, just like the tubular plug wall 41, the corresponding diameters being adjusted to achieve that, when the plug is in the closed position, the external flush is achieved. of both elements, the maximum maximum diameter of the outer cap face 43 being equal to the minimum diameter of the outer tubular face 11 of the wide section D if they have to be in contact with the wide section D, or slightly smaller if there is a gap between both elements, as is the case shown in Fig. 2.

An example is shown in Fig. 5 in which the outer face of the plug 43 is flush with the outer tubular face 11 of the wide section D, but also including a geometry, in this parabolic case, in the plug 40 in the remote area of the wide section D. This example demonstrates that, although said flush exists in the area where the plug is adjacent to the wide section D, in other areas of the plug 40 furthest from the wide section D said plug may include different geometries, or ornaments with shapes different from those of the wide section D.

In one example, this set of sections A to D may correspond to a neck of a bottle for liquids such as a bottle of wine, beer, champagne, oil, water, spirits, etc. In those cases, following the bottleneck provided with the aforementioned sections A to D, there is usually a shoulder section and a final section that connect the neck of the bottle with the area where most of the volume of the liquid is stored.

According to other examples, the proposed container can be a jar, for example a jar adapted to contain products in the form of gel or cream, such as jams, pates, cosmetics, ointments, etc., or to contain granulated products such as olives, peppers, roe, etc. . In such cases the mouthpiece will be larger than in the case of bottles for liquids, since to extract the contents of the container it will not be enough to tilt said container. In the case of the jars it may be that the wide section D extends to the bottom of the container.

In any case, the inner tubular face 12 of the wide section D has a cross-section with a size larger than the cross-sectional size of the neck section A. The widening of said inner tube face from the neck section A to the wide section D occurs in the so-called widening section C that interposes and connects the intermediate section B with the wide section D, the successive sections being

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transverse of the inner tubular face 12 of the widening section C of increasing size as they move away from the mouth 13 to produce said widening.

The outer tubular face 11 of the widening section C also makes a transition from the cross-sectional size of the outer tubular face 11 of the intermediate section B, to the cross-sectional size of the outer tubular face 11 of the wide section D, being at minus two successive cross sections of the outer tubular face 11 of the widening section C of different size.

The widest area of the widening section C will be connected in continuity with the wide section D, which may have successive cross sections of constant or increasing size when moving away from the mouth. Said wider area of the widening section C will be larger than the cross section of the annular neck face 24, the difference in size between the two dimensions being equal to the thickness of a tubular cap wall.

For fastening the cap 40 to the tubular wall 10 there are multiple options. For example, in Fig. 1 a plug 40 is shown in the form of an inverted bowl whose inner wall of plug 42 is fitted against the outer face of the neck 21.

Alternatively, in Figs. 2 and 5 a plug 40 is shown provided at its center with a cork or plastic plug intended to be inserted through the mouth 13 in a tight manner.

In Fig. 3 and 4, a plug connected with a thread to the tubular wall 10 is shown.

In these two examples, it is proposed to place the thread 14, protruding from the outer tubular face 11, in the intermediate section B, below the neck 20. For said thread thread 14 to be in contact with a complementary thread thread 44 provided on the inner face of cap 42, the thread 14 has to protrude from the vertical projection of the neck 20. This is achieved with a portion of the intermediate section away from the widened neck 20, as shown in Fig. 3 and Four.

This portion of the enlarged intermediate section B can be obtained by molding, together with the neck, then the inner diameter of the inner tubular face 12 of that section is equal to or less than the inner diameter of the inner tubular face 12 of the neck section A, as It is shown in Fig. 4.

Alternatively, the portion of the widened intermediate section B can be obtained by blowing, together with the widening section C and the wide section D, then being the

inner diameter of the inner tubular face 12 of that section greater than the inner diameter of the inner tubular face 12 of the neck section A, as shown in Fig. 3.

It will be understood that the different parts constituting the invention described in one embodiment may be freely combined with the parts described in other different embodiments even if said combination has not been explicitly described, provided there is no harm in the combination.

Claims (22)

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Glass container with a stopper that includes a stopper (40) and a container body formed by a tubular glass wall (10) that extends along a central axis (E) with a mouth (13) in a end of the tubular wall (10) and with an end opposite to the closed mouth (13), said tubular wall (10) defining an inner tubular face (12), an outer tubular face (11); said tubular wall (10) including at least one section of neck (A), an intermediate section (B), a section of widening (C) and a successive wide section (D), aligned and with their respective inner tubular faces (12 ) connected to each other; where: • the neck section (A) includes the mouth (13) and an annular neck (20) protruding from the outside of the tubular wall (10) in a position adjacent to the mouth (13), said ring neck (20) being provided with two annular neck faces (24) protruding from the outer tubular face (11) and between which an outer neck face (21) is defined in the peripheral area furthest from the central axis (E); • the intermediate section (B), in at least one portion adjacent to the neck section (A), has the outer tubular face (11) with a cross section smaller than the cross section of the outer neck face (21), defining an annular outer groove (30) between the neck (20) and the widening section (C); • the widening section (C) connects the intermediate section (B) with the wide section (D) and comprises in its outer tubular face (11) successive cross sections of increasing size with respect to the mouth (13) from a coincident minimum section with the section of the intermediate section (B) up to a maximum section coinciding with the initial section of the wide section (D) and greater than the cross section of the outer face of the neck (21); characterized because the plug (40) includes a tubular plug wall (41) which, in a closed position, surrounds and covers the neck section (A) and the intermediate section (B); said tubular stopper wall (41) has an inner stopper face (42), facing the outer neck face (21) and the outer wall face (11) of the intermediate section, and an outer stopper face (43) which, in closed position, is flush with the outer wall face (11) of the wide section (D). 2. Glass container according to claim 1 wherein the annular neck (20) has a height, in the direction of the central axis (E) equal to or less than 6mm. 5 10 fifteen twenty 25 30 3. A container according to claim 1 or 2 wherein the cap (40) further includes a central cylindrical body inserted through the mouth (13) and in contact with the inner tubular face (12). 4. A container according to claim 1 or 2 wherein the cap (40) has its inner face of the cap (42) in close contact with the outer face of the neck (21). 5. Container according to claim 4 wherein said adjusted contact constitutes a tight seal. A container according to any one of the preceding claims, wherein the intermediate section (B) includes a widening in a portion away from the neck section (A), the cross-section of the outer tubular face (11) being in said widening equal or greater than the cross section of the outer face of the neck (21). 7. A container according to claim 6 wherein the outer tubular face (11) has, in the widening of the intermediate section (B), protrusions that define a thread (14), and wherein the plug (40) includes, in its inner cap face (42) a complementary thread (44) forming a screw cap. A container according to any one of the preceding claims 1 to 5, wherein the entire outer tubular face (11) of the intermediate section (B) has a smaller cross section than the cross section of the outer neck face (21). 9. Container according to any one of the preceding claims, wherein the inner tubular face (12), in the neck section (A) and in the intermediate section (B), consists of successive cross sections of constant and equal shape and size the cross section of the mouth (13) or of equal shape and decreasing size in relation to the cross section of the mouth (13), said sections being capable of being obtained by molding. 10. Glass container according to claim 8 or 9 wherein the cross section of the inner tubular face (12) in the widening section (C) and in the wide section (D) is greater than the cross section of the mouth (13 ), said sections being capable of being obtained by blowing. 11. Container according to any one of the preceding claims, wherein the inner tubular face (12), in the neck section (A) and in the portion of the intermediate section (B) adjacent to the neck section (A), consists of successive cross sections of constant and equal shape and size the cross section of the mouth (13) or of equal shape and decreasing size in relation to the cross section of the mouth (13), said sections being capable of being obtained by molding. 5 10 fifteen twenty 25 30 12. Glass container according to claim 11 wherein the cross section of the inner tubular face (12), in the portion of the intermediate section (B) away from the neck section (A), in the widening section (C) and in the wide section (D), is greater than the cross section of the mouth (13), said sections being capable of being obtained by blowing. 13. Glass container according to any one of the preceding claims, wherein the wide section (D) has a constant cross section and equal to the maximum cross section of the widening section (C). 14. Glass container according to any one of the preceding claims, wherein the wide section (D) has an increasing cross-section with respect to the mouth (13), said wide section (D) defining an inclination angle of less than 30 ° with respect to the central axis (E). 15. Glass container according to any one of the preceding claims, wherein the widening section (C) is perpendicular to the central axis (E). 16. Glass container according to any one of claims 1 to 14 above, wherein the widening section (C) defines an angle of inclination with respect to the central axis (E) greater than 30 °. 17. Glass container according to any one of the preceding claims, wherein the annular neck (20) has one of its annular neck faces (24) flush with the mouth (13), adding the thickness of the annular neck (20) to the thickness of the tubular wall (10) in all said section of neck (A). 18. Glass container according to any one of the preceding claims, wherein the tubular stopper wall (41) also covers the widening section (C), leaving an edge of the tubular stopper wall (41) in contact with the section width (D). 19. Glass container according to any one of the preceding claims 1 to 17, wherein the tubular stopper wall (41) does not cover at least part of the widening section (C), leaving one edge of the tubular stopper wall (41 ) separated from the wide section (D). 20. Glass container according to any one of the preceding claims, wherein the tubular cap wall (41) is at least 1mm thick. 21. Glass container according to any one of the preceding claims, wherein the tubular stopper wall (41) is a rigid wall. 22. Glass container according to any one of the preceding claims, wherein the difference in size between the maximum cross section of the widening section (C) and the neck section (A) is equal to the thickness of the tubular plug wall ( 41).