HUT76373A - Blow molded plastic container - Google Patents

Abstract

It is an object of the present invention to provide a plastic preform for producing a molded container, comprising at least one inner wall which is individually formed from the plastic object and extends through the hollow portion and therewith meets and engages with the peripheral portions of the inner wall member. The invention also relates to a method for forming an injection molded plastic container and a preform. 'jctCuVvtC) cj / rtk · I β. OoCC, Uvox.Z}. U

Description

BACKGROUND OF THE INVENTION This invention relates to preforms for the manufacture of plastic bottles for the storage of liquids, such as carbonated soft drinks. These containers may be formed from extruded or molded preforms, after which the preformed material must be molded into a properly shaped can using a blow mold of the desired shape. Typical thermoplastic materials are polyethylene terephthalate or PET, polyolefins, etc., but other materials may be used.

The shape of the bottle and its preform generally includes a neck portion with a cap holder, a protruding shoulder portion, and below it a sidewall or main tribal portion and an associated lower portion. In many cases, the bottom of the bottle preferably has the shape of a champagne bottle with an inwardly directed, generally conical, portion.

In addition, larger bottles are preferred by consumers, particularly for convenience and cost-effectiveness reasons, such as 2-liter bottles being widely used for carbonated soft drinks. Moreover, even larger vials would be desirable. However, these vials are difficult to handle, especially for young children. In addition, the walls of these have collapsed, making their treatment even more difficult.

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- 5 These vials are made of various plastics, eg. milk vials made of polythene (PE), mineral water bottles made of polyvinyl chloride (PVC) and soft drinks bottles made of PET.

No. 5,242,066. The US patent discloses an injection molded bottle having a neck portion, a sidewall and a bottom, and includes an internal member called a mandrel holder attached to the side wall of the bottle to reinforce the bottle. The bottle is formed from an injection molded preform, the molded part of which has the aforementioned mandrel. This blown container is made up of a plurality of inner parts, which are separated by a mandrel holder and also stiffen the side walls.

In order to facilitate the handling of large containers, a handle or handle is placed on the container by a variety of methods, largely depending on the material of the vial and the process required to achieve the desired shape. Because PE bottles are continuously molded, a method is known in which a hollow handle can be produced using the same shape that molds the bottle itself from the extruded preform. The prerequisites for this process are a preform and a plastic such as PE, which can be soldered immediately. PET bottles made from injection molded preforms do not have a hollow, inseparable handle, since it is almost impossible to solder PET into a closed handle using the above technique.

There are ways to handle the PET bottles by hand, but none is inseparable from the body of the bottle, that is to say, neither is made from the same preform as the bottle itself. Instead, the individual handles are mechanically attached or soldered to the finished bottle. This is done in a separate step, such as in U.S. Patent No. 4,727,997. It is also distinguished by its US patent. This is a costly and often unreliable procedure that fails commercially

The handle can be used as a replacement for the handle, since the difference between the two is that, when grasping the handle, at least 1 finger of the user enters the cavity formed between the handle and the body of the vial while the handle is formed with a recess in the vial wall. taking the handle between inches and index fingers.

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- 7 Such a handle can be made immediately, as an integral part of the bottle, from an otherwise common preform in a mold having the same cavity as the one in which the rest of the bottle wall was originally formed.

PET bottles with such a handle are commercially used, for example, to store large quantities of alcoholic beverages, wines and other liquids, generally greater than 2 liters.

The same concept cannot be applied to bottles under internal pressure, such as carbonated soft drinks. It is known that in the case of a thin-walled, flexible cylindrical object, any dents are smoothed over by internal pressure and the torso overlaps a substantially circular cross-section at the site of the dents, which may have appeared prior to the application of pressure.

It is an object of the present invention to provide an improved preform which can be made economically and aesthetically advantageous. This may have a handle on the side wall of our son as well as an internal, solid stiffening part that divides the bottle into parts, thereby stiffening its walls and preventing deformation due to internal pressure.

Accordingly, the main object of the present invention is to provide an improved injection molded plastic container and to develop a process for its production.

It is a further object of the invention to provide the aforementioned enhancement simply and cheaply.

Further objects and advantages of the present invention will be set forth below.

The present invention relates to an injection molded plastic container made of a blow molded plastic preform, including: an injection molded plastic preform having a neck portion defining a spout; a body section starting from there, and an indivisible, closed bottom section starting from the body section. This torso part defines a hollow space which is closed at the base part and open at the neck part, the torso part ranges consisting of at least two connecting lugs having two grooves and a wall member disposed between the two grooves with this handle shaped, at least one internal support member is provided in the cavity between the two grooves. The wall member of said lugs is blown in an injection mold and includes segments that are removable from the mold and are converted into a handle by internal pressure.

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DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS OF THE INVENTION

1 is a perspective view of the preform of the present invention; FIG. 2 is a cross-sectional view taken along line 2-2 of FIG. 1; Fig. 3-4 is an enlarged view of a portion of Fig. 2; Figs. 3-4 are embodiments of the inner member; Figs. 5-6 are embodiments of Fig. 2; Fig. 7 is a side view of the core required to form the preform of the present invention; Figure 9 is a cross-sectional view of the inner member used with the core of Figure 7; Figure 9-10 is a sectional view taken along lines 9-9 and 10-10 of Figure 8; Figure 11 is a cross-sectional view of an injection molding die; Figure 7 is a partial cross-sectional view of the preform of the present invention formed in the injection mold of Figure 11 using the core of Figure 7 and the inner member of Figure 8.

Fig. 13 is a partial cross-sectional drawing similar to Fig. 2A, in a further alternative embodiment, Fig. 14 is a partial cross-sectional drawing of a blow molding tool for forming a preform molded container similar to that of Fig. 12; Figure 16-17 is a horizontal cross-sectional view of a container of various shapes of the present invention; Figure 18 is a cross-sectional view of a support portion of the container of the present invention; Figure 19 is a front view of one embodiment of the container of the present invention; 20-21 are various embodiments of the inner member; FIG. 22 is an injection molded container having an inner wall showing the result of a play on the inner wall. FIG. 19 is a cross-sectional view taken along line 23-23 of the container shown in FIG. he is pointing at his predecessor filled with unripe or soft drink.

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12 shows a plastic preform 10 suitable for forming injection molded containers.

The preform 10 may be produced by any suitable method, such as injection molding or extrusion.

The preform 10 may be prepared earlier and stored until later manufacture or in combination with other operations. The preform 10 has a neck portion 12 which may be smooth or screwed. The neck portion 12 defines a spout 13 and further includes a body portion 14 extending from the neck portion 12 and a solid, closed bottom portion 16 extending from the body portion 14.

The body portion of preform 14 defines a hollow space 18 which is closed at the bottom and open at the neck portion 12.

According to Fig. 1, the preform 10 has a tube-like structure, but can of course have other suitable or desired shapes.

The inner member 20, shown in dashed line in Figure 1, is preferably made of a separate material from the preform, the same or even other material. This element is inserted into the cavity 18, for example, by means of a robot (not shown) through the spout 13.

The inner core 20 has flange portions 22 which are soldered to the body portion 14 at the points 24 (as shown in Figure 2), thereby forming a preform 10 having a soldered internal member. It is possible to place a decoration 21 on the inner member 20, which is visible through the final wall of the container.

The inner member 20 may be produced by any desired or suitable method, such as injection molding or extrusion, pressing or other conventional molding processes.

In the embodiment shown in Figure 1, the inner member 20 has a solid configuration, but other uses may be used. For example, as shown in FIG. 3, the double-pane inner member 20 includes one or more slats 26 and 28 windows.

4, a window member 20 is a frame-like member having a central open portion 30.

In both embodiments, the weight of the wall element is reduced, but it nevertheless provides an internal support for the molded container to prevent pressure flattening or other deformation.

SUMMARY OF THE INVENTION The present invention provides a simple, easy-to-use and economical method of forming a preform with a member forming a retaining wall. The internal support wall is • · *

As shown in Figure 14, the container may be limited to the length of the body portion or may be of any desired length, such as extending down to the bottom portion, thereby providing support or extending to the neck portion, thereby forming a multi-chamber preform.

Thus, the present invention provides versatile and well-applicable methods for producing various embodiments.

The wall element is inserted mechanically, such as by a robot, which is not necessarily required to be attached to the preform assembly itself. For example, in the case of an injection molding machine with a submersible robot, this robot can also be used to insert the preform and the wall element.

After insertion, the wall element is attached to the inner wall of the preform, for example by high-frequency, ultrasonic or compression welding, or by any adhesive bond.

In another embodiment, the inner member 20 may be mechanically secured to the preform as shown in the magnification shown in Figure 2A, wherein the connection 24, a contact pin and a gutter member function to resist tension in the direction of arrow 24 while the preform is in bottle form. and when the bottle is pressurized.

Embodiments of Figures 5 and 6 show a curved wall member 32 and a corrugated wall member 34 which, instead of being stretched or reduced in thickness, simply straighten when the preform 10 expands during injection molding.

Both the curved wall member 32 and the corrugated wall member 34 have sufficient length and cross-section to allow clearance between the respective side walls of the blown bottle.

the inner member may be made from the same basic material, for example PET, as the preform 10, or it may be made of different materials such as another plastic or metal, such as aluminum.

In addition, the inner member 20 may be transparent, translucent, or in contrast with the color of the preform, or even embellished, such as, for example, as shown in FIG.

1-6, a preform 10 may be simply and easily formed using the inner wall member shown in the figures.

The wall member can be designed precisely to meet your needs as it can be stretched to any size below the neck. Optionally, it may reach the bottom and be of any density distribution, shape or configuration, regardless of the limitation of the injection mold.

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In the embodiments shown in Figures 7-13, a separately formed inner wall member is inserted into the nozzle core 36 and molded therein to form a preform to which an inner wall member is attached.

Figure 7 shows the lower portion of the nozzle core 36, which includes a gap 38 extending from the base 40 of the core portion to the core. The plastic insert 42, which is actually an inner wall member, can be made by any suitable means, such as injection molding, extrusion, or the like. In the hollow portion of the preform, the insert 42 has a solid portion 44 as shown in FIG. Adjacent to the solid portion 44, the insert 42 has a frame-like shape with 2 parallel transverse bars 46 joined by a curved member 48 to form the space 50 shown in FIG.

The insert 42 is inserted into the gap 38 of the core 36 and follows the contour of the core. The insert 42 has a solid portion 44 where it is formed into an inner wall member extending across the entire hollow portion of the preform, so that it is a frame with an empty center portion beneath the lower end of the solid wall portion 44.

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As shown in FIG. 11, core 36 with insert 42 is inserted into injection mold 58, molten plastic is poured to form preform 52, which adheres to insert 42 when molten. The crossbars 46 and the bent member 48 prevent the molten plastic from entering the slot 50.

The second prefix 52 thus obtained is shown in Figure 12. The edges 54 of the pad 42 may be wider than the gap 38 at least in the region of the solid portion 44 so that the molten plastic can be wrapped around said bead when it flows around the core 58 in injection mold. The flanges 54 may be provided with a knurled 56 as shown in Figure 13 to increase the connection between the flange 54 and the incoming hot plastic and to facilitate fusion of the flange and the incoming plastic.

During the process, the insert 42 is firmly inserted into the slot 38 by a robot, and then the injection mold 58 is closed and then the plastic is injected. The flanges 54 are surrounded by molten or at least very hot plastic so that the flanges and the plastic can fuse together. Part of the insert frame, located there to prevent melted • · ··

- 18 plastics flow into the slot so that it remains empty under the solid portion of the insert. It is often necessary to protect the bottom portion 48 of the insert 42 from melting because it is located opposite the injection port where the plastic is the hottest.

At that end, the thickness of the bottom portion 48 is increased by a stall to prevent the incoming plastic from being completely melted and thus entering the slot 38.

The hot preform 52 is then inserted into the injection mold 58 as shown in Figure 14, and the container of the invention is thus formed by injection molding.

The preform thus formed is brought to a temperature such that injection molding can be accomplished, either by heating a pre-formed preform or by immediately shaping the hot preform after the injection molding operation, if necessary adjusting the temperature.

The heating of the interior walls can be accomplished by mixing the hot air supplied to the cavity 60 or by heating radiators therein.

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The hot preform is inserted into an injection molding mold of the desired container shape, such as the injection mold 58 shown in FIG. elongation.

This method may be performed with one or more tension rods for axial extension. The insert or inner wall member 42 also expands to the extent allowed by the injection mold. The injection mold shown in Figure 14 has an internal shape that allows the plastic container 64 of Figure 15 to be molded, but of course any shape can be selected. Of course, if the final shape you have selected contains at least two recesses connected to each other, this must be included in the mold.

Similarly, in order to have an axially inwardly bottomed portion shown in Figure 15, the injection mold should be of this shape. The pre-mold expands to the shape allowed by the injection mold, and likewise, the inner wall expands.

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Thus, the injection molded plastic container 64 is configured to have a neck portion 65 defining a spout 66, and a bottom portion 67, a body portion 68 where the cylindrical body portion connects the neck portion 65 and the bottom portion 67.

The neck portion 65 is provided with an external thread 69 which corresponds to the thread of the preform when a threaded preform is used to accommodate the closure portion of the container. The bottom portion 67 may have an axial inwardly directed substantially conical base.

In other embodiments, the bottom portion may include protrusions at which the container may stop, as is known in the art. In such basic designs, the inner wall intersects the opposing legs as symmetrically as possible. The container 64 also includes a shoulder portion 71 that connects the neck 65 to the tubular body portion 68.

the container has at least one inner wall 72 which corresponds to the inner wall 42 of the preform 52 and extends through the hollow space 73 of the container 64. The inner wall of Figure 15 extends into the body portion 68, but may, if desired, extend to the inwardly directed, substantially conical portion 70 of the inner wall 72 of Figure 18, providing support for this portion of the container. .

The inner wall 72 is securely connected, preferably secured to the container, as shown in Figure 15 to the body portion 68, thereby providing a strong support for the container walls.

Referring to Figure 16, the body portion 68 of the container may form adjacent curved lugs connected to one another or with recesses 67 which are suitable for handle use in large containers. Of course, they can take different forms.

In this embodiment, the inner wall elements 78 are disposed in a hollow space 73 connected to the recesses 76 and thereby form four associated lugs which serve as supports.

The handle thus reinforced does not rotate when the container is pressurized.

In the embodiment of Fig. 17, the inner wall element 80 is provided, although the latch 82 is smaller than the other lobe 84, and the inner wall element does not pass through the center of the hollow space 73. The inner wall element 80 is connected to recesses 83 and serves as a support.

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In contrast, in the embodiment shown in Figure 16, the lugs 74 are of approximately the same size and the inner support wall intersects the center of the hollow space 73.

The present invention, of course, involves the use of one, two or more retaining walls.

Figure 19 illustrates a container 90 having a screw neck portion 91, a shoulder portion 92, a body portion 93 and a base portion 94 according to the present invention, similar to the embodiment of Figure 15, but in this case the bottom portion 94 includes the support legs 95 and the body portion 93 includes a handle 96 provided with an internal support portion 97. In this embodiment, the upper portion 98 of the inner support portion 97 is concave.

When the container is pressurized, the upper part of the inner wall causes excessive stress, which can cause the container to burst, especially when the pressure in the overheated storage space is increased.

The embodiment of Figure 19 minimizes pressure concentration by pushing the inner wall at the upper end of the handle 96. As shown in Figure 19, the inner support portion 97 is curved downward, in which case the greatest thinning of the wall occurs away from the dent, where a thicker cross-section is desired.

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The blow molding shown in FIG. 14 may have an internal design that permits the formation of a hollow plastic product which is a precursor to the container 90. The precursor ribs of the said precursor are cross-sectioned by the dotted line in Figure 23. The shape 58 may comprise at least two recessedly connected lugs, not shown in Figure 14 but clearly shown in Figure 23. If you want an axially inwardly rotating base, the blower must also have this shape. The preform will expand to the shape specified by the die and the inner walls will expand accordingly. In accordance with conventional procedures, the injection mold 58 is divided in the direction of the second arrow 33, as shown in Figure 14, to release the blown container precursor.

As shown in Figure 23, the circumference of the precursor is larger than the circumferential arc surrounding it. Accordingly, as shown in FIG. 14, the preform 52 has a large expansion in the areas where the recesses form a handle.

As shown in Figure 23, the body portion 93 comprises curved lugs 60 which engage with concave portions or grooves 61. The grooves 61 are particularly suitable for gripping large vials.

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Of course, other forms can also be obtained. The support member 97 in the hollow space 51 connects the grooves 61 to maintain the distance and thereby provide support. The handle thus reinforced does not bend under pressure.

Because the retaining walls engage with the inner wall surface of the trunk and adjacent to the grooves, they provide a solid support and prevent the walls from flattening. Therefore, the handle remains firm and stable, whether the bottle is full or not. As shown in Figure 19, the inner wall preferably ends in the trunk, near the end of the handle. Accordingly, the lugs and grooves that make up the handle may end in the tribal portion and, as shown in Figure 19, may begin and end in the tribal portion, forming a separate, closed handle path. This is illustrated by the typical embodiment shown in Figures 19 and 23, wherein the container 90 has a separate handle formed by additional grooves 61 and lugs 101. The support member 97 is adjacent to the grooves and holds them as described above.

Of course, the handle can extend as far as the underside or shoulder section as needed.

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Figures 19 and 23 illustrate a preferred embodiment of the container 90, which is the subject of the present invention. Figure 23 shows a pre-arm 102 as it was made in the blow molding tool. Figure 23 is a dashed outline of the pre-lobe 102, the inner support member 97 connecting two adjacent recesses or grooves 61 on the base to prevent the extension of the groove 61 at the connection of the support member 97 and the recess 61. In the precursor of the reservoir 90, the pre-rib 102 has substantially parallel segments 53, which are thin strips outwardly stepped outward, and are indicated by a dashed line in the figure.

The parallel segments 53 are configured to become curved segments 55 that define the boundaries of the smaller crown 101 when the container is pressurized, for example when filled with carbonated beverage. The injection molded collar 102 has substantially parallel sides, which are required for an easy to use and relatively inexpensive injection mold, since the collar is not submerged in the direction of the injection mold spout, as indicated by the third arrow 104.

It will be appreciated that hand or finger gripping of the latch 102 (the outline of which is indicated by a dashed line at segment 53) is not advantageous.

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In contrast, the other lobe 101 (defined by the curved segments 55) is particularly suitable as a handle, since not only the base of the recesses 61 reinforced with the support member 97, but the lips 102 formed by the above method are deformed to form curved segments. so that the fingers or hand are flush around the handle, creating a secure grip between the thumb and the other fingers.

Another advantageous feature of the container shown in Figures 19 and 23 is that there are two sizes of handle in one container.

Accordingly, the smaller collar 101 may be regarded as one handle and the remainder of the container as another or larger one suitable for grasping with a larger hand.

Conveniently positioning the support member at or adjacent to the centerline of the container will allow the proportions of the lugs to be varied, so that one is suitable for an adult and one for a child.

The surfaces formed by these slats provide space for two separate labels.

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- 27 One is a distinctive label that identifies the brand and the substance of the liquid stored. The other contains statutory information to be placed on liquid containers.

This provides an opportunity to place greater emphasis on advertising messages on containers on display shelves.

The object of the present invention is to provide a handle which adapts to the approximate width of the hand as shown in Figure 23. The handle is preferably located at the center of the container in the longitudinal direction as shown in Figure 19.

Since the support member 97 is only required in the length of the handle, it can be limited to its length. Of course, however, it can be extended to cross the bottom of the tank.

The inner member 20 may include a visual space suitable for displaying a pattern or the like, a gap area 23 in the form of a pattern, or the element may take the shape of a shape 25 as shown in Figures 1, 20 and 21.

This can be seen through the walls of the final container, whatever shape it takes in the rock following the expansion of the preform into the container.

The visual representation of the pattern, such as the designation 21 on the inner member 20, is the key to a game with a container.

The 21 marks will be in the form of a sample on the container informing the player, who is usually the drinker, whether he has won or lost the game. For example, the 21 marks may appear in the following terms: You won, Winner,

Try again or similar information as shown in Figure 1.

The sign may also be a symbolic form, such as a smiling face or a sad face, to which the result is communicated. You can do this with a predefined color code.

In addition to games, 21 signs can be used simply for decorative purposes, such as color panels, cartoon characters or athletes. 21 marks may be displayed on 20 wall members by engraving (scratching) or by any printing process not compromised by liquid.

In addition, a color film or the like can be used to create a variety of designo.

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The inner member may be rectangular or non-rectangular in shape, but it must have a gap of 23 to form the desired shape of the message to be conveyed. As shown in Figure 3, the gap 23 can take the form of different initials or words (for example, You Won).

a possible form of an inner member may be a desired shape or symbol 25, thus communicating the result of the game.

Thus, the 25 patterns of the inner member may be one of the words Win or Lose, or more concisely W or L, as shown in Figure 4.

In this variation, the inner member 20 includes side supports 27a and 27b with which they are attached to the preform or container as described above.

The wall element 20, marked 21, with cutouts 23, or with a pattern 25, may be formed by any method such as injection molding, pressing or pressing or other conventional molding techniques.

For variants of a wall element 20 having a gap 23 and a pattern 25, the inner wall may be cut with any cutting tool, either manually or automatically, such as by pressing or casting into the desired shape.

In the embodiment shown in Figure 1, the wall element 20 is of a solid (solid) configuration.

30 As shown in Figure 3, it is so solid, compact. Initially, such a solid element is required, from which, according to Fig. 3, the variants of the inner wall are formed, the gap spaces.

These embodiments of the wall element also serve as an internal support for the final container against flushing or other deformation under pressure.

The present invention provides a simple, convenient and economical method of forming a preform having an inner wall formed by a space 23 or pattern 25 designated 21 for internal support.

Referring to Figure 1, the inner wall 20 of the container may extend to the length of the torso, or of any desired length, extend to the underside with its support, or extend to the neck.

The present invention provides a versatile and suitable method for implementing the various embodiments.

The inner wall 72 is securely connected, preferably connected to the container, as shown in FIG. 15 to the body portion 68.

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As described above, and with reference to Figure 22, the inner wall 72 includes visual representations such as a mark 76, a gap space, or the wall itself is shaped in a special shape, as described above for the preform. (See Figures 1, 20, and 21). All of these are used to communicate the result of the tank game.

thus, the tank is considered part of the game, while the inner wall provides a strong support for the tank wall.

In the case of a game organized using a tank as a play instrument, the mark remains hidden from the participants as long as they do not engage in any activity that can be rewarded.

For example, when a transparent container is filled with a liquid of a color that obscures the mark, the participant will need to purchase the container and even use some of its contents to reveal the winner mark.

Conversely, the signal may be self-evident with changes in environmental factors or location, if this process follows the opening of the container, or in any case reaches the participant irreversibly, such as by a permanent removal from a hidden warehouse such as a vending machine.

It is to be understood that the invention is not limited to the illustrations described and illustrated herein, which are intended to illustrate the best embodiments of the invention and to modify their shape, size, arrangement of parts and details of the process. The invention includes all modifications which are within the spirit and scope of the claims as set forth in the claims.

Claims (10)

Patent Claims 1. Blown plastic bottle molded plastic preform, characterized in that: - a molded and blown plastic article having a neck portion defining a spout opening, wherein a bottom portion is attached to and inseparably attached to the neck portions by a tribal portion, wherein: at the neck, and wherein - the tribal region defines areas formed by at least two interlocking lobes and two interlocking recesses and an interstice recess wall portions that form a handle with at least one inner support member, located in the hollow part between the two grooves, where - the wall portion of at least one of the aforementioned lugs is blown into a mold to form segments movable from the mold and molded to the desired handle shape under internal pressure. Container according to claim 1, characterized in that the inner member is made separate from the blown plastic product and comprises flange areas which are attached to and connected to the body part. · · · - 34 Container according to claim 2, characterized in that the inner member is attached to or limited in length to both the tribal and the underside and is thus attached only to the body. A container according to claim 2, characterized in that the inner wall member comprises a solid part which extends completely through said hollow space and is welded to the body part and a frame part attached to the solid solid part which extends to the bottom part, and is welded to the body and to the bottom portion, comprising an inner open hollow space between the solid portion of the inner wall and the bottom portion of the preform. The container of claim 2, wherein the inner wall member comprises a solid portion and said bottle comprises a shoulder portion formed between the neck and torso portions and wherein the solid portion of the inner member is the shoulder portion and the lower portion. ends at least one of them. Container according to claim 1, characterized in that it has a decoration on its inner member, which is also visible through the plastic object. 7. A container according to claim 1, wherein one of its lobes is a smaller lob. 8. A container according to claim 7, wherein the smaller arm comprises two interconnected segments which extend outwardly from the grooves and exhibit at least one degree of conicity, and the segments convex outwardly to form curved segments when the container is provided with carbonated liquid. they fill it. The bottle according to claim 8, characterized in that the connecting lugs are of different sizes and the smaller lining has two offset grooves and a wall portion extending from one groove to the other, thereby forming a handle. A bottle according to claim 1, wherein the segments exhibit at least one degree of taper.