PLASTICS MATERIAL BOTTLE WITH INTERSECTING TENSION BANDS

Abstract

Provided is a plastic container with a bottom area and a main body, which adjoins the bottom area in a longitudinal direction of the plastic container, wherein the main body includes a wall which extends all the way around in a circumferential direction of the plastic container and an opening area which at least indirectly adjoins the main body in the longitudinal direction and has a container opening, wherein the circumferential wall of the main body includes at least one first groove and/or elevation extending in a first direction and at least one second groove and/or elevation extending in a second direction.

Claims

1. A plastics material container with a base region, a main body adjoining this base region in a longitudinal direction of the plastics material container, wherein this main body has a peripheral wall extending completely around in a peripheral direction of the plastics material container, and a mouth region with a container mouth following at least indirectly to this main body in the longitudinal direction, wherein this peripheral wall of the main body has at least one first groove and/or protrusion extending in a first direction and at least one second groove and/or protrusion extending in a second direction, wherein the first groove and/or protrusion and the second groove and/or protrusion intersect in at least one first intersection region in the peripheral wall, characterised in that at least two base grooves and/or base protrusions are arranged are in the base region and at least one base groove and/or base protrusion transitions in a branching region into at least two grooves and/or protrusions formed in the peripheral wall.

2. The plastics material container according to claim 1, wherein at least one groove and/or protrusion has a portion extending through the intersection region and this portion extends substantially in a straight line.

3. The plastics material container according to claim 1, wherein the first groove and/or protrusion and the second grove and/or protrusion intersect in the intersection region at a predetermined intersection angle and this intersection angle is at least one of greater than 0.1, greater than 10, greater than 20 and greater than 30.

4. The plastics material container according to claim 1, wherein at least one groove and/or protrusion is continuous in the intersection region and/or is designed to run into the intersection region.

5. The plastics material container according to claim 1, wherein at least one groove and/or protrusion has an aperture angle of more than 10, more than 20, more than 30, more than 40, more than 50 and more than 60.

6. The plastics material container according to claim 1, wherein at least one groove and/or protrusion has an aperture angle of less than 170, less than 150, less than 130, less than 110, less than 100, less than 90 and less than 80.

7. The plastics material container according to claim 1, wherein at least one groove and/or protrusion has a straight groove base.

8. The plastics material container according to claim 1, wherein the plastics material container has at least one further groove and/or protrusion in the wall which forms at least one intersection region with the first and/or the second groove and/or protrusion.

9. The plastics material container according to claim 1, wherein at least one groove and/or protrusion extends at least in sections spirally around the longitudinal direction of the container.

10. The plastics material container according to claim 1, wherein at least one intersection region is formed as a depression into which the at least one groove and/or protrusion runs.

11. A blow mould for producing plastics material containers with a first side part and a second side part, which in an assembled state of the blow mould enclose at least one cavity, inside which plastics material parisons can be formed into the plastics material containers, wherein this blow mould has a shaping inner wall for producing the wall of the plastics material containers, characterised in that the shaping internal wall of the blow mould is formed in such a way that it is suitable for producing a container according to claim 1.

Description

BRIEF DESCRIPTION

[0052] Some of the embodiments will be described in detail, with references to the following Figures, wherein like designations denote like members, wherein:

[0053] FIG. 1 shows a representation of a plastics material container;

[0054] FIG. 2a shows a representation of two grooves in an intersection region;

[0055] FIG. 2b shows a cross-section of a groove;

[0056] FIG. 3a show an explanatory representation of a configuration of grooves;

[0057] FIG. 3b shows a representation for illustration of an intersection region;

[0058] FIG. 4 shows a plan view to illustrate a groove configuration; and

[0059] FIG. 5 shows a sectional representation of a blow mould.

DETAILED DESCRIPTION

[0060] FIG. 1 shows a representation of a plastics material container 1 according to embodiments of the invention. This plastics material container has a base region 2 which also serves simultaneously as a standing surface. This base region 2 adjoins the main body 4. A mouth region 6 having a mouth 8 in turn adjoins the main body. The reference numeral 12 designates a first groove which extends spirally in the wall 42 of the container. The reference numeral 14 designates a second groove which likewise extends spirally in the wall 42. These two grooves jointly form an intersection region 20. The reference numeral L relates to a longitudinal direction of the container 1.

[0061] The reference numerals 12a and 14a relate to portions of the grooves which run into the intersection region 20. The reference a designates an angle which the two grooves enclose with one another. In the variant shown in FIG. 1 this angle is approximately 90. This is also a preferred configuration which ensures a particular degree of stability of the container. The intersection region here is formed as a depression into which the two grooves 12 and 14 run. In this region in which the grooves run in, the cross-sections are expanded.

[0062] The reference numerals 22 and 24 designate base grooves or a tension band in the region of the base 2. This tension band 22 likewise leads in the manner of a groove to a branching point or branching region 26. Both a first groove 12 and a second groove 14 branch off at this branching point 26.

[0063] The reference numeral 16 designates a horizontal and peripheral groove which is arranged in a gripping region 4a of the container. This groove extends in a closed manner peripherally around the wall 42 of the container 1.

[0064] FIG. 2a shows a detail of the region 20 in which two grooves 12 and 14 converge. Here the two grooves are shown which intersect in the intersection region 20. More precisely, the two grooves run into the intersection here without being significantly expanded. This means that a groove here is interrupted substantially only by the cross-section of the respective other groove.

[0065] FIG. 2b shows a cross-section of a groove. It will be recognised that this cross-section has a trapezoidal configuration. In this case the reference numerals 34 and 36 relate to two lateral boundary walls of the groove and the reference numeral 32 relates to a groove base. In this case this groove base extends in a straight line and transitions via curved corners 44 into the two side walls 34 and 36. The reference designates an aperture angle of the said groove. These is defined relative to a geometric junction point of the two side walls 34 and 36 (i.e. the geometric extension thereof, not shown).

[0066] FIG. 3a shows a schematic representation for illustration of the spiral configuration of the grooves 12 and 14. These grooves form a first intersection region 20 and a further intersection region 20a. The number of such intersection regions formed depends upon a number of factors, such as in particular a height of the container or also a gradient angle of the grooves. In any case it will be recognised that the grooves 12 and 14 extend spirally on the outer periphery 42 of the container 1.

[0067] FIG. 3b shows a detail, namely the intersection region 20 between the two grooves 12 and 14. In this case it is possible that the channel base or the groove base extends variably over the container height. As shown in FIG. 3a, at least two such grooves or guide curves are provided. In this case, as mentioned above, these can have a constant or variable gradient. Furthermore, as mentioned, a groove with a positive gradient and a groove with a negative gradient are present, which can intersect n times. The intersection region 20 shown in FIG. 3b shows the two grooves 12 and 14 which intersect at the angle .

[0068] FIG. 4 shows a further representation or a cross-sectional representation of the container. In this case the reference numeral 42 in turn relates to the cross-section (or the peripheral wall) of the container itself. The reference numeral 31 designates two possible configurations of a groove or a channel base. In this case it will be recognised that, as designated by the reference d, there are variable distances d between the container cross-section and the respective groove bases or channel bases.

[0069] FIG. 5 shows a sectional representation of a blow mould 60 for producing a container according to embodiments of the invention. This blow mould 60 has a first side part 62 and a second side part 64. In addition, the blow mould also has a base part. This base part 66 and the side parts 62 and 64 in a closed state of the blow mould form a hollow space 65 within which the plastics material parisons can be expanded to form the plastics material containers.

[0070] The reference numeral 68 designates an inner wall of the side parts. In this case it can likewise have grooves or protrusions and specifically the configuration which can be produced or blown in the context of a blow moulding process of a container according to embodiments of the invention or for example the container illustrated in FIG. 1.

[0071] Although the invention has been illustrated and described in greater detail with reference to the preferred exemplary embodiment, the invention is not limited to the examples disclosed, and further variations can be inferred by a person skilled in the art, without departing from the scope of protection of the invention.

[0072] For the sake of clarity, it is to be understood that the use of a or an throughout this application does not exclude a plurality, and comprising does not exclude other steps or elements.

LIST OF REFERENCES

[0073] 1 container [0074] 2 base region [0075] 4 main body [0076] 4a gripping region of the main body 4 [0077] 6 mouth region [0078] 8 mouth [0079] 12 groove [0080] 12a portion of the groove [0081] 14 groove [0082] 14a portion of the groove [0083] 16 horizontal groove [0084] 20, 20a intersection region [0085] 22, 24 base groove, tension band [0086] 26 branching point, branching region [0087] 31 configurations of the groove [0088] 32 groove base [0089] 34, 36 boundary wall of the groove [0090] 42 peripheral wall of the base body [0091] 44 corners of the groove [0092] 60 blow mould [0093] 62 first side part [0094] 64 second side part [0095] 65 hollow space [0096] 66 base part [0097] 68 inner wall [0098] intersection angle of the grooves 12, 14 [0099] aperture angle of the grooves [0100] d variable distances [0101] L longitudinal direction of the container