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Combined petaloid base of a container

A petal-shaped and base technology, which is applied in the field of combined petal-shaped container bases, can solve the problems of leg shape changes, container stability defects, and failure to meet mechanical performance constraints, and achieve the effect of increased anti-deformation strength

Active Publication Date: 2013-08-28
SIDEL PARTICIPATIONS SAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] A common deformation one wishes to avoid is sagging in the central area of ​​the base as it results in a change in the form of the feet and ultimately a defect in the stability of the vessel
This problem is known, see for example French patent application FR2897292 (or its American counterpart US2009 / 020682), but solutions proposed in the past have not provided solutions that meet ideally higher mechanical performance constraints, ideally lighter weight constraints, and the compromise of ideally easy blow molding constraints

Method used

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  • Combined petaloid base of a container
  • Combined petaloid base of a container

Examples

Experimental program
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Embodiment Construction

[0019] exist figure 1 The above shows a container 1 in a perspective view from below, which is blown or stretch blown from pre-heated preforms of thermoplastic material such as polyethylene terephthalate (PET), here The container is a bottle.

[0020] The container 1 extends along a main axis X and comprises a side wall 2 called the body, and a base 3 extending the body 2 and closing it at its lower end.

[0021] The base 3 is petal-shaped and includes a bottom wall 4 whose overall shape protrudes outward from the container 1 (ie downward when the container is placed flat).

[0022] The base 3 additionally comprises a series of feet 5 formed by protuberances protruding outwardly from the container 1, these feet extending from a tablet-shaped central area 6 of the base 3 towards the periphery 7 of the base 3, where the material remains substantially amorphous while the base is connected to the body 2 at the periphery 7 . Denote the full diameter ( Figure 5 ).

[0023] Suc...

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Abstract

The invention relates to a plastic container (1) including a body (2) and a petaloid base (3) forming an extension of the body (2), the base (3) including a generally convex base wall (4), wherein feet (5) project therefrom, said feet being formed by outgrowths separated in pairs by portions of the base wall forming hollow valleys (13) which extend radially from a central area (6) of the base up to a periphery (7) of the base, wherein in said container each valley (13) gradually widens from the central area (6) towards the periphery (7) and has a concave portion (15) located adjacent to the periphery (7).

Description

technical field [0001] The invention relates to the manufacture of containers, in particular bottles, obtained by blowing or stretch blowing from rough blanks (preforms or intermediate containers) of thermoplastic material. Background technique [0002] Containers generally comprise: an open neck through which a content (usually a liquid) is introduced; a body which imparts its volume to the container; and a base which closes the body in the opposite direction from the neck, forming a Provides stability and maintains the base of the container when the container is resting on a surface. [0003] Containers for carbonated beverages where the pressure of the gas dissolved in the liquid leads to great mechanical stresses are mostly provided with petal-shaped bases: the base consists of petal-shaped protruding feet extending radially from the central area of ​​the base by convex walls part of the valley called the creux or vallée. The feet are used to ensure that the container ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D1/02
CPCB65D1/0284B65D23/001
Inventor M·布科布扎
Owner SIDEL PARTICIPATIONS SAS
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