HU218428B - Plastic container including handgrip - Google Patents

Abstract

SUMMARY OF THE INVENTION The present invention relates to a blow molded plastic container having a handle portion (41) provided with a bottle outlet (42), a bottle bottom portion (43), a bottle body portion (44) and a shoulder (47) that connects said bottle neck portion. (41) and a part of a canister (44); wherein said bottle neck portion (41), bottle body portion (44) and shoulder (47), and bottle bottom portion (43) define a bottle-cavity (51) closed at the lower part (43) of the bottle and at the neck portion of the bottle (43). 41) where the outer wall surface (49A) of the container body part (44) defines areas comprising at least two injection molded grooves (61) which divide said container body portion (44) into at least a two-inch injection molded arm (60), wherein the grooves (42) 61) and the length of the arms (60) are limited to the fuselage part (44) and form a handle, and said grooves (61) are connected to a support member (50B) and supported to prevent the recesses (61) from protruding, said support member (50B) being attached thereto. ) extends completely along the bottle cavity (51) and is integrated with the inner wall surface (48A) of the frictional part (44). ŕ

Description

The present invention relates to a plastic bottle for storing liquids, such as carbonated soft drinks. These containers can be made from extruded or injection molded pre-formed material, after which the pre-formed material is molded into a properly shaped bottle 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 vial usually includes a cervical 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 vial portion of the vial has the shape of a champagne bottle, with an inwardly directed, generally conical, portion.

The lower part of these vials represents a weak point and reinforcement of the lower structure is desirable.

In addition, larger bottles are preferred by consumers, especially for convenience and cost-effectiveness reasons, such as 2-liter bottles being widely used in 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 vials sink in, making it even more difficult to handle.

Accordingly, it is a primary object of the present invention to provide a plastic bottle with a better structure.

It is a further object of the present invention to provide a bottle with a reinforced lower portion as described above, in particular an inwardly inclined lower portion.

It is a further object of the present invention to provide an improved plastic bottle as described above which is large in size and easy to handle and has at least one shaped and reinforced handle.

It is a further object of the present invention to provide a better plastic bottle having a reinforced wall or body portion.

The present invention provides an improved plastic bottle. The constituent parts of the plastic bottle are: the cervical part which defines the spout, the lower part and the body part connecting the two; these cervical, torso, and lower portions surround a hollow space that is closed at the lower portion and open at the cervical portion; the aforementioned cervical, tribal, and lower portions having an outer and an inner wall surface; and at least one support member in the hollow space extending through the hollow space and connected at two different points to the inner wall surface of the body portion so as to support said inner wall surface.

In a preferred embodiment of the invention, the exterior surface of the body wall comprises at least two adjacent grooves connected to each other by a groove, whereby the abovementioned support member engages and supports the inner wall surface of the body part. Preferably, the lugs and grooves form a handle.

In one embodiment, the support member supports and delimits two adjacent grooves, and alternatively has four interconnecting lugs with four grooves and two support members, wherein the support members consist of support walls extending through and interconnecting the entire hollow space. the aforementioned groove.

In one embodiment, the slits divided by the groove are about the same size and the retaining wall extends about the center of the hollow space.

In another embodiment, these lance portions are not uniform in size and the retaining wall does not intersect the center of the hollow space. The inner retaining wall extends from the lower portion to the tribal portion and is integral therewith, ending in the tribal portion, and the grooves and lugs may only be in the tribal portion.

In another embodiment of the present invention, the lower portion comprises an axially inwardly engaging inner wall surface, wherein the abovementioned support member is integral with at least a portion of the inner wall surface of the tribal portion, and engaging said internal wall surface of said inward portion. for. Multiple support walls may be provided on the bottle and support walls may terminate in the tribal region.

In addition, the present invention also provides a plastic preform material for making a blown bottle. The preform material consists of the neck portion defining the spout, the stem portion starting from there and the lower portion attached to the portion of the body; the aforementioned tribal portion defining a hollow space which is closed at the lower part and open at the cervical part; and at least one inner wall extending through the entire hollow space from the lower portion to the tribal portion terminating in the tribal portion.

The bottle created according to the present invention has several advantages. First of all, the flushed plastic bottle contains a support member inside the bottle, which provides support. Reinforced handles are easy to form and the lower part can be provided with internal strut members that provide support for the axially inwardly lowering member. Furthermore, these vials are easy and convenient to produce.

Further advantages of the invention are as follows.

The foregoing will be more readily understood by reference to the following explanatory drawings. In the drawings it is

Fig. 1 is a side elevational view of a preform formed for making a bottle according to the invention;

1A. Figure 1 is a cross-sectional view taken along line 1A-1A of Figure 1;

2A. Figure 1 is a partial perspective view of the core required for the preform of Figure 1;

2B. Figure 1 is a cross-sectional view of the assembly of an injection molding core for making the preform of Figure 1;

Figure 3 is a front view of a bottle according to the invention;

HU 218 428 Β

Figure 4 is a sectional side view of a smoking mold for making a bottle according to the invention from a preform of material similar to Figure 1;

5A. Figure 3 is a cross-sectional view taken along line 5A-5A of Figure 3;

5B. 5A. Figure 2 is another version of the form;

5C. Figure 3 is a cross-sectional view taken along line 5C-5C of Figure 3;

Figure 6 is another version of a form similar to Figure 3;

Fig. 7 is a sectional side elevational view of the bottom of the vial of the present invention, including an inwardly axial portion with the support member;

Figure 8 is a perspective view of the reinforced underside of the bottle according to the invention;

Figure 9 is a sectional view of the lower part of Figure 8;

Figure 10 is a partial perspective view of the core required to make the preformed material for making the structure of Figure 8.

According to the present invention, a plurality of grooves and lugs may be formed on the outer surface of the vial of the present invention for better adhesion of the vial. This is particularly desirable for larger circumferential glasses and makes it easy to handle semi-full or full bottles. The internal struts at the grooves are used to compensate for the internal pressure and provide a secure grip.

It is a further feature of the invention that the base or bottom is provided with an axially inwardly directed, generally conical, portion and at least one support member inside the vial to prevent deformation due to internal pressure. This is particularly useful since it is highly desirable to reinforce such an inward portion or a sparkler base type structure.

In addition, the inner support wall (s) of the present invention are particularly desirable in plastic bottles that are flushed to provide a reinforced wall structure.

The preform material required for making these vials may be made by injection or extrusion and includes an inner wall extending inside the preform which corresponds to the internal support member in the final blown bottle.

Referring to Figure 1, the preform is made by extrusion or injection molding, preferably of biaxially oriented synthetic resin such as polyethylene terephthalate. The preform 10 has a neck portion 11; which defines the spout 12 and may also be provided with an external thread 13 for securing the cap to the final blown plastic bottle. The preform 10 has a body portion 14 which opens from the neck portion 11 and a lower portion 15 which opens from and integrates with the body portion 14.

The body portion 14 shown in Figure 1 is generally tubular, but of course the tubular structure may be different.

Each cervical portion has a cervical inner wall surface 11A and a cervical outer wall surface 11B, the tubular body portion 14 has a cervical interior wall surface 14A and a trunk outer wall surface 14B, and the lower portion has a lower inner wall surface 15A and a lower 5B. outer wall surface. Within the preform 10, the trunk portion 14 defines a hollow space 16 which is closed at the lower portion 15 and open at the outlet 12 of the neck portion. The lower portion 15 may have any desired or suitable shape, depending on the desired manufacturing process and the properties of the finished bottle, such as the rounded semicircular shape shown in Figure 1 or the flat or slightly inwardly oriented base.

The preform 10 comprises at least one, but preferably two, inner walls 17, such as those shown in FIGS. Figure 2 shows two walls. The inner walls 17 extend completely through the hollow space 16, extend from the lower part 15 through the tubular body portion 14 and terminate in the body portion 14. 1A. As shown in FIG. 4, the inner walls 17 form four chambers (17A, 17B, 17C, 17D), but these chambers naturally contact over the inner wall 17. As shown in Figure 1A. As can be clearly seen in FIGS. 1 to 4, the inner walls 17 are connected to the inner wall surface of the tribe 14A. As shown in FIG. 1, they are also engaged with the lower inner wall surface 15A so that the inner wall or walls 17 provide an internal support for the preform wall. The preformed material can also be made of translucent PET so that the inside walls are visible.

A suitable injection molding pattern for making preform 10 is shown in FIG. 2A. 2B and 2B. FIG. This is the preferred version of making the 10 preforms; however, it should be noted that the preform 10 can also be formed by extrusion, if necessary using a conventional extrusion die, which includes a hollow cross member to form the required inner walls, followed by narrowing the bottom to form the lower portion.

2A. With reference to Figures 1 to 4, the outer wall 21 of the injection molding core 20 has an approximately cylindrical shape adapted to the desired inner shape of the preform 10. In addition, the injection molding core 20 comprises interconnected hollow cross-sections or slots 22 corresponding to the required inner partition walls of the preform.

Thus, the injection molding core 20 is conventionally inserted into the injection molding mold 23 so that the injection molding head 24 is adjacent to the lower mold portion 25 of the injection molding core 20. The injection molding core 20 is disposed in the injection molding mold 23 so as to create a gap 26 between the injection molding core 20 and the injection molding mold 23, in which molten plastic 27 is to be injected through the injection molding head 24. The molten plastic 27 also enters the slots 22 of the injection molding core 20 to form the inner walls 17. The assembly of injection molding 23 and injection molding core 20 is then disassembled and the injection molding core 20 with the preform 10 thereon is removed through the pressure plate 29. Then, the injection molding core 20 must be removed from the preform 10 by holding the preform 10 firmly,

EN 218 428 Β injection molding core must be removed axially.

The hot preform 10 is then inserted into the die 30 as shown in Figure 4, and the can of the present invention can be made therefrom as described below.

The preform thus prepared must be brought to a temperature where blowing can be carried out. This can be accomplished by heating the preformed material or following the injection molding operation to form the hot preform, adjusting its temperature if necessary. Heating the inner walls, if necessary, by supplying accessible hot air within the hollow space below, or by placing heaters in at least one of the compartments formed by the inner walls 17,

The hot preform is inserted into the die 30, which has the same shape of the desired bottle as the die 30 shown in Figure 4. During this time, compressed air is blown into it to expand the preform to the form 31 shown in dashed line in FIG. 4, creating the two axial stretches and the axial elongation. This process may be performed with or without an expansion bar or mandrel. When using the rod, the rod must have the same number of spikes as the compartments so that each spike lies against the bottom of the preformed material within each compartment. The inner walls 17 also expand to the limit allowed by the cutter 30. The cutting tool shown in Figure 4 allows the bottle 40 of Figure 3 to be made, but of course other shapes can be selected. Of course, if the desired shape consists of at least two grooves connected to the groove, the cutter will also have this shape. Similarly, if you want an axially inclined lower portion (as shown in Figures 3 and 4), the spreader will have this shape. The preform 10 will expand to the shape defined by the cutter, and the inner walls will also expand accordingly.

Thus, the parts of the finished blown plastic vial 40 are the vial neck portion 41 defining the vial outlet 42, the vial base 43, the vial body portion 44, which is generally a tubular body connecting the vial neck and vial base 43. The neck portion 41 has an outer threaded thread 45 which corresponds to an external thread 13 of the preform 10 for fastening the bottle cap. Bottom 43 has a generally tapered base 46 which is axially inward. The vial 40 also has a shoulder 47 which connects the vial neck portion 41 and tubular vial body portion 44, and the vial body portion 44 has an inner wall surface of the vial body 48A and an outer wall surface of the vial shoulder 48B and an outer wall surface 49B. 48C, inner wall surface of vial base 48C and outer wall surface of vial 49C, and inner wall surface of 48D vial neck and outer wall surface of vial neck 49D.

The vial 40 has at least one vial 50 having an inner wall corresponding to the inner wall 17 of the preform 10, completely penetrating vial cavity 51 within vial 40 and extending from the bottom of vial 43 to vial body portion 44, wherein generates at least two chambers, see Figure 5 for the chambers (51A, 51B, 51C, 51D) which are connected at the end of the inner wall of the vial 50 in the torso portion.

As clearly shown in Figures 3 and 5, the inner walls are assembled with the vial, see Figure 5, which clearly shows that the inner wall of the vial 50 is engaged with the inner wall surface of the vial 48 and thus provides a solid support to the wall of the vial 40. offer. Of course, the support wall or walls also engage with the inner wall surface of the 48C Bottom Bottom and provide a solid support there.

5, the outer wall surface of the bottle 49 consists of interconnected, curved lugs 60 connected to concave portions or grooves 61. The grooves 61 are particularly suitable for gripping large vials. Of course, other forms can also be produced. The inner walls of the support vial 50 in the cavity 51 are adjacent to the grooves and thus provide support. The reinforced handle thus created does not snap under pressure.

5B. The embodiment shown in FIG. 6A has a single retaining wall 50A having a smaller arm 60A 'and a larger arm 60A'. The two arms are connected by an additional groove 61A and the support wall 50A does not intersect the center of the cavity 51. This structure creates a relatively small, easy-to-grasp armband.

In contrast, FIG. The embodiment shown in FIGS. 1A to 4b has approximately equal size lobes 60 and the inner wall of the supporting bottle 50 intersects the bottle cavity 51 in the center. It is understood that a single retaining wall may be used as shown in FIG. 5B. 5A, or two retaining walls in FIG. 5A. or more than two retaining walls, if required.

Preferably, the retaining walls engage with the inner wall surface of the lower portion and at least a portion of the torso portion, depending on the upward extension of the retaining wall. They are adjacent to the grooves and provide a solid support, which, for example, prevents the walls from sinking. Therefore, the handle stays firm and stable regardless of whether the bottle is full or large. As shown in Figures 3 and 5C. As illustrated in FIG. 6A, the inner wall preferably ends in the tribal portion. Similarly, the lobes and grooves that make up the handle may end in the tribal portion, and, if necessary, begin and end in the tribal portion, forming a separate handle. This is illustrated by the typical embodiment shown in Figure 6, where the further bottle 40A has a separate handle formed by the second second grooves 61B and the second lugs 60B. The support member 50B is adjacent to and supports the grooves, as with other variants. Of course, the handle can extend as far as the underside or shoulder section as needed. This allows a great variety of vials of the invention.

If necessary, the grooves and lugs can simply form waves or other decorative patterns on the outer wall surface to distinguish the bottle, as illustrated in FIG. 5A. 6 and 6, respectively. That's right4

In particular, according to the present invention, many narrow lobes can be formed for decoration.

The third vial 70 of Fig. 7 has a modified sparkling base 71 with an axially inwardly conical portion 72. The inner wall of the vial 50 in the cavity 51 is adjacent to the conical portion 72 and supports the conical portion 72 in addition to its supporting role in other embodiments. As shown in FIG. 7, the inner wall of the vial 50 is integral and engages the conical portion 72 and extends as shown in FIG. 3 to the body portion of the vial.

Fig. 8 shows a fourth vial 80 with an additional sparkling base 81 with an additional conical portion 82 in the axially inward direction. In the further hollow space 86, a plurality (83, 84, 85) of additional inner walls or support members support the further conical portion 82 and the side walls 87 as well as the additional foam base 81. As clearly shown in Figures 8 and 9, the support members engage with the inner wall surface of the additional body portion 87A and the inner wall surface of the inwardly extending portion 82A to provide a solid and rigid support for the inward portion and adjacent and adjacent walls. The retaining walls may end in the tribal section as in other variants. The exact number of support walls depends on the particular bottle.

Fig. 10 is a partial perspective view of a core 90 suitable for making the preform for the bottle of Figs. 8 and 9. The outer core wall 91 of the core 90 is approximately cylindrical, similar to that of FIG. shown in FIG. The interconnected hollow cross passages or additional slots 92 correspond to the number and height of the desired support walls in the finished bottle. 2A. 2B and 2B. The molten plastic according to the method shown in FIG. 1A will be introduced into the additional slots 92 to form the inner walls.

It is understood that the invention is not limited to the illustrations presented and described 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 that are within the spirit and scope of the claims as set forth in the claims.

Claims (8)

PATENT CLAIMS 1. Blow molded plastic container with handle, containing: a neck portion, a lower portion, a trunk portion and a shoulder having an outlet opening connecting said neck portion and the torso portion; wherein said cervical, trunk, and shoulder and lower portion define a hollow space closed at the lower portion and open at the neck portion; wherein the outer wall surface of the tribal portion defines areas comprising at least two injection molded grooves dividing said tribal portion into at least two adjacent injection molded lugs, wherein the projection of the grooves and lugs is limited to the tribal portion and forms a handle, said grooves (61) being interconnected and supported by a support member (50B) to prevent protrusion of the grooves (61), wherein said support member (50B) extends completely along the vial cavity space (51) and the inner wall surface of the container body portion (44). (48A) integrated. Container according to claim 1, characterized in that the support member (50B) extends from the bottom of the vial (43) to the vial body portion (44) and comprises both the lower vial part (43) and the vial vial part (44). is integrally designed. Container according to any one of claims 1 or 2, characterized in that four of said lugs (60) and four of said grooves (61), said support members (50B), which are located in said bottle cavity space (51). forming two fully extending inner support walls (50A) - each comprising two support walls (50A) connecting two of said grooves (61). Container according to claim 3, characterized in that said lugs (60) are approximately the same size and wherein said support member (50B) approximately crosses the center of said vial cavity space (51). Container according to claim 1, characterized in that said lugs (60A ', 60A') are of different sizes and wherein the support member (50B) passes through the vial cavity space (51) at a location different from its center. Container according to claim 2, characterized in that the bottle bottom part (43) comprises an axial (axial) inwardly directed part (72) having an inner wall surface, and wherein said support member (50B) is formed with at least a portion of the inner wall surface (48A) of the container body portion (44) and is also integral with the inner wall surface of the inwardly conical portion (72) to support said integral inner wall surfaces. Container according to claim 6, characterized in that it comprises a plurality of said support walls (83, 84, 85). 8. A container according to any one of claims 1 to 4, characterized in that said container is formed in a mold (30) of a preform (10) and said support member (50B) extends to the extent allowed by the mold (30).