CN101708783B

CN101708783B - Plastic container

Info

Publication number: CN101708783B
Application number: CN200910175543.6A
Authority: CN
Inventors: 亚历山大·绍
Original assignee: Krones AG
Current assignee: Krones AG
Priority date: 2008-09-15
Filing date: 2009-09-15
Publication date: 2014-04-16
Anticipated expiration: 2029-09-15
Also published as: CN101708783A; EP2163483A1; DE102008047450A1; US20100072165A1; EP2163483B1

Abstract

The present invention relates to a plastic container (1) which comprises a bottom (2). The bottom is provided with a cross section which is deviated from a round cross section. Furthermore an injection point (4) is provided at the central area of the bottom (2). According to the invention, the bottom (2) is provided at least two first main ribs (6a, 6b) which extend radially. The first main ribs extend with a mode that a geometrical connection line (L1) extend and pass through the injection point (4) which is provided in a first dent (12) of the bottom (2). Furthermore the dent extends in the inner spatial direction of the plastic container (1) and separates the two first main ribs (6a, 6b) from each other.

Description

Plastic container

Technical field

The present invention relates to a kind of plastic container, be particularly useful for the plastic container of filling with beverage.

Background technology

Recently, at beverage production field, constantly with plastic container, replace glass bottle.For this reason, known to the basic configuration of the malleable of these plastic bottles and cross section be.On the one hand, these plastic container have circular cross section conventionally, but already know, its cross section can be also rectangle or square.Especially, cross section is that rectangle or foursquare bottle are useful especially aspect effective use of storage space and the stability of placement.

In addition,, in the process of some such containers of production, people are also reducing raw-material consumption as possible.This causes bottle wall and bottle constantly attenuation of the end.But on the other hand, also be that very important aspect is to guarantee wall of a container, especially bottom to be made into enough stable, the weight of itself in the time of can bearing container and fill, can bear again the inner pressure producing, the pressure especially producing during in-built soda.In the prior art, soda is often contained in the bottle with round section.But such container need to consume more raw material, and the pressure that can bear is also limited, and owing to being round section, container ratio is easier to topple over.

WO 2006/067590 A1 has described a kind of bottle end being made by plastic material.More precisely, be at the bottom of bottle, to be provided with the enhancing groove extending with respect to bottle bottom horizontal, and have continuous main rib to be arranged on bottom.Bottle copy for the record or for reproduction body is the square sectional of rounding.The main rib of mentioning reaches the injection point of container always.This design at the bottle end can strengthen stability, the especially stability in injection point region of bottle, but due to the corresponding layout that strengthens rib, the bottle end can produce disadvantageous distribution of stress.

Summary of the invention

Therefore, technical matters to be solved by this invention is the stability of further reinforced plastics bottle, especially increases force resistance, and further reduces the amount of the required raw material of the such plastic bottle of preparation.

Plastic container according to the present invention comprise bottom, the cross section stray circle tee section of wherein said bottom, and injection point is arranged on the central area of bottom.

According to the present invention, described bottom has at least two first main ribs that radially extend, and it is in line along bottom and extends by this way, and its how much connection leads extend through injection point.And described injection point is positioned at the first recess of bottom, this recess is preferably in the direction of inner space of plastic container and extends, and two the first main ribs are separated from each other.Preferably, this recess is circular, and Perfect Ring is around injection point.

In other words, described bottom has dome-shaped structure at recess or injection point region, but injection point itself is preferably located at the center of this domed formation.

The implication in the cross section of stray circle tee section refers in particular to, but be not limited to square or square-section, wherein square sectional also refers to such cross section: have fillet more or less, and be also provided with multiple parts between fillet, the extension that is substantially in line of these parts.

By two main ribs being separated and by means of recess, realizing the object that strengthens bottom stability.Especially, described recess contributes to the stability of the central area that increases bottom.Preferably, two main ribs extend to recess or contact with recess.Adopt in this way and will form special stable structure in described recess region.The implication of the term " rib " of the following stated refers to groove especially, and its extension that is in line is preferably extended in the direction of the inner space of container.By these ribs, without the thickness that increases significantly bottom section, just can reach actual humidification.And by these ribs, container can steadily be stood through its bottom surface.

In further favourable embodiment, bottom has two the second main ribs, and its mode that extends through injection point with how much connection leads that is in line extends through bottom.In other words, these two second main ribs also radially extend from injection point or from the longitudinal axis of container.By these two further main ribs, the stability in other direction bottom also having strengthened.

At this, recess is also preferably that two the second main ribs are separated from each other, and preferably, the second main rib extends to recess or even stretches into recess.In a further embodiment, first how much connection leads vertically extend with respect to second how much connection leads substantially.By this way, two the first main ribs and two the second main ribs form the cross extending at the bottom of bottle.

Two main ribs or pillar preferably arrange mutual vertically, preferably have the inside radius between 30mm-60mm, and more preferably, between 35mm-50mm, best is between 40mm-50mm.As previously mentioned, all main ribs will be interrupted by described recess or central dome, and injection point is located at the center of this recess.At this, the radius of this recess is preferably between 4mm-25mm, preferably between 6mm-20mm, more preferably between 8mm-15mm.Main rib or pillar are preferably from the edge part of this recess.

The wall thickness of the starting point of depression main rib is everywhere preferably relatively thick, to realize high-voltage stability.On the other hand, the diameter of recess is very important to the steepness of main rib, therefore, to needed material, is also critical factor.Because injection point is absorbed in recess the inside, this just means its internal blas towards container, and when container is placed on ground, ground clearance will increase.

Preferably, owing to adopting four main ribs or pillar, the crushing resistance of container is enhanced.Four main ribs are dispersed in internal pressure on foursquare cross section in the same way.By this way, bottom can obtain than the many pressure stabilities up to 3bar of internal pressure.And, also guarantee that low material drops into and larger leaning angle.

By the intersection of this main rib, realized the high stability of bottom, therefore realized the stability of whole container.Preferably, at least one main rib extends to the edge of bottom.In embodiment further, each main rib extends to associated respectively bottom margin.

Advantageously, each main rib is not only the edge of the bottom that extends to, but extend through edge is entered to the container area that is connected to bottom, for example bending transitional region, and wherein, bottom is incorporated in the sidewall of container.

In further favourable embodiment, bottom is symmetrical cross section.Preferably, bottom design becomes to have many axiss of symmetry.For example, be likely the axis of symmetry that the first main rib or the second main rib form bottom.Advantageously, bottom also with respect to the layout symmetry of each main rib or the residing groove of main rib design.

In further favourable embodiment, the edge of bottom has four linearly extended parts substantially.Straight line portion is herein interpreted as the part that radius of curvature is greater than 30mm.And the edge of bottom preferably has four corners, it has specific radius of curvature.Therefore, having obtained is foursquare cross section generally substantially, and this cross section has four straight line portioies, and between each straight line portion, is the corner with certain radius of curvature.

In further favourable embodiment, inferior rib is located between at least one first main rib and at least one the second main rib, and this time rib extends along geometrical line, and then this geometrical line extends through injection point.Therefore, inferior rib also upwards extends in above-mentioned footpath, and to bottom, provides stability by this way, stability is provided especially to the region between main rib.

Preferably, between main rib, bottom has rib four times.In this preferred embodiment, as mentioned above, four main ribs form cross, and four times rib also forms cross, and at this, the extension line of these rib preferably extends mutual vertically.

In further favourable embodiment, each time rib is shorter than each main rib.At this, inferior rib does not preferably extend to above-mentioned recess, and preferably, they do not extend to the edge of container yet.Preferably, the connection lead of every two ribs extends substantially mutual vertically.

In further favourable embodiment, main rib is parallel to each other and extends or vertically extend with respect to described straight line portion.Preferably, main rib extends to corresponding linear edge from recess, and these edges substantially connect with its core or be crossing.In this embodiment, the connection lead of inferior rib is preferably in the direction of fillet and extends, or or rather, preferably in the geometric centre of these fillets, extends.

Accompanying drawing explanation

In conjunction with the following drawings, further advantage and embodiment will become more obvious, wherein:

Fig. 1 is the schematic diagram according to container of the present invention;

Figure 2 shows that according to the birds-eye view of the bottom of container of the present invention;

Figure 3 shows that the bottom of Fig. 2 of other angle;

Figure 4 shows that the figure that the bottom of Fig. 3 is cut open along the A-A line of Fig. 3;

Figure 5 shows that the thin portion of the figure of Fig. 4;

Figure 6 shows that the figure that the bottom of Fig. 3 is cut open along the B-B line of Fig. 3;

Figure 7 shows that the figure that the bottom of Fig. 3 is cut open along the F-F line of Fig. 3;

Figure 8 shows that the lateral plan according to bottom of the present invention.

The specific embodiment

Figure 1 shows that according to container 1 of the present invention.This container is provided with vessel port 3, wall body 5 and bottom 2.Likely at wall portion, be provided with stability ribs.

Figure 2 shows that according to the birds-eye view below bottom of the present invention.Can see, this bottom is square cross section substantially, and wall 20 has straight line portion 22 and fillet 24.Injection point 4 is located at the center of this bottom.

This injection point is further arranged in recess 12, and this recess 12 extends in the internal direction of container, enters in the plane of figure of Fig. 2.

Reference numeral

6a and 6b point to the first main rib, and it is horizontal expansion in Fig. 2.At this, each

main rib

6a and 6b are adjacent with recess 12.Or rather, each these main ribs have bending outshot, and it stretches in recess 12.By this way, realized the stable especially embodiment of bottom.Two the first

main rib

6a, 6b extend along geometrical line L1.These two

main rib

6a, 6b are positioned at the groove 9 with respect to line L1 symmetry.This groove 9 extends towards inner side them as main rib, to the direction of container inside, extends.

Reference numeral

8a and 8b point to two further main ribs, and it is substantially perpendicular to the first

main rib

6a and 6b extends.These two

main rib

8a and 8b extend along the geometrical line L2 in Fig. 2.These the second

main rib

8a and 8b are also located in groove 9.

Each groove 9 is respectively with respect to line L1 and L2 symmetry.Groove 9 is used from and strengthens bottom with actual rib one.Also likely using the entirety of each

main rib

6a, 6b, 8a and 8b and groove 9 as main rib.

Reference numeral 7 represents the end of each

main rib

6a, 6b, 8a and 8b.This end is stretched in recess 12 and in these positions, is interrupted the round section of recess.This transition makes the stability of bottom high especially.

In

main rib

6a, 6b, 8a and 8b, be also provided with

time rib

16a, 16b, 18a and 18b.In these rib, two

time rib

16a and 16b extend along geometrical line N1, and two

rib

18a and 18b extend along geometrical line N2.Time rib is shorter than main rib as can be seen here, and neither extends to recess 12 on the one hand, does not also extend to edge 20.Geometrical line N2 is with respect to geometrical line N1 skew 45 degree.Article two, geometrical line N1 is also mutually vertical with N2.

Inferior rib

16a, 16b, 18a and 18b are also located in groove 19, and these grooves also extend in axisymmetric mode with respect to line N1 and N2.

Figure 3 shows that the view corresponding to Fig. 2, but except the different views shown in following figure.

Figure 4 shows that the view that the bottom shown in Fig. 3 is cut open along the A-A line of Fig. 3.At this, especially can see the main rib 6a and the 6b that are incorporated in recess 12.As can be seen here, two

main rib

6a and 6b are incorporated to the sweep of recess 12 in lower region.In the birds-eye view of main rib 8b, also can see it is how to be located in groove 9.In the embodiment shown in fig. 4, the radius of curvature of

main rib

6a and 6b is constant, and preferably, between 20mm-80mm, more preferably, between 30mm-60mm, best is between 40mm-50mm.

Figure 5 shows that the thin portion of the view of Fig. 4.What can see is the transition between recess 12 and the first main rib 6b of injection point 4.There is certain curvature in this region, and its radius of curvature starts from region 32 until region 34 increases gradually, and region 35 is almost linearity region, immediately be main rib 6b.

Figure 6 shows that the section drawing of bottom along the B-B line of Fig. 3, i.e. the view of time rib 16a and 16b.What in figure, can see in detail is

time rib

16a, 16b and recess 12, and the injection point 4 of the heart therein.In this case, the curvature of each

rib

16a and 16b outwards reduces, or inwardly increases.Region 36 extension that is almost in line, time rib no longer or almost no longer occurs at this.This also can see in Fig. 2.

At point or region E,

inferior rib

16a, 16b, 18a and 18b outwards integrate with in bottom surface 40.Therefore, in these regions and preferably, in region 36,

inferior rib

16a, 16b, 18a and 18b have tangent last edge (run-ins and run-outs) with respect to bottom surface 40.This can be by recognizing below: in these regions, each rib merges and enter in the region 40 of the bottom 2 between this these rib.Avoided in this way the folding formation of short-leg of container.

In a preferred embodiment, than the large 2-8 of the diameter of injection point doubly, preferably doubly, more preferably 3-4 doubly for 2.5-6 for the diameter of recess 12.

Figure 7 shows that the section drawing that the bottom of Fig. 3 is cut open along the F-F line of Fig. 3, the region that main rib and time rib do not extend.In this region, particularly bottom surface 40 neither the extension that main rib is not again the region of time rib can see in the drawings.Now, what can see is that radius of curvature starts from region 42 until region 44 increases gradually, and then suddenly drops to region 46.Region 48[sic] also there is curvature, be opposite direction.

Figure 8 shows that according to the lateral plan of bottom 2 of the present invention.As can be seen here, in the direction of the vessel port 3 towards container, main rib 6a further upwards extends than each

rib

16a and 18b.

Reference numeral 50 refers to manomelia, and it forms respectively between main rib and inferior rib.These manomelia support vessels 1.In the embodiment in figure 1, container is provided with 8 such manomelias 50.

The all features that disclose in present specification are claimed as main points of the present invention, and with respect to each prior art or its combination, they all have novelty.

Claims

1. plastic container (1), comprise bottom (2), the cross section of described bottom has fillet, and between fillet, be also provided be substantially in line extend multiple straight line portioies, and injection point (4) is located at the central area of described bottom (2), it is characterized in that, described bottom (2) has at least two the first main rib (6a that radially extend, 6b), the mode that described the first main rib extends through injection point (4) with the first how much connection leads (L1) on the straight line through bottom (2) is extended, described injection point (4) is arranged in first recess (12) of bottom (2), and described the first recess (12) extends in the direction of plastic container (1) inner space, and by two the first main rib (6a, 6b) mutually separate, wherein, described bottom (2) have two the second main ribs (8a, 8b), and the mode that described two the second main ribs extend through injection point (4) with the second how much connection leads (L2) on the straight line through described bottom (2) is extended, wherein, described the first recess (12) is separated described two the second main ribs (8a, 8b) mutually, between at least one first main rib (6a) and at least one the second main rib (8a), be provided with rib (16a, 16b, 18a, 18b) at least one times, each rib (16a, 16b, 18a, 18b) is shorter than each main rib (6a, 6b, 8a, 8b), described at least one rib extends along the geometrical line (N) through injection point (4), each main rib (6a, 6b, 8a, 8b) has bending outshot, and described outshot stretches in described the first recess (12).

2. plastic container as claimed in claim 1 (1), is characterized in that, described two the first main ribs (6a, 6b) extend to described the first recess (12) always.

3. plastic container as claimed in claim 2 (1), is characterized in that, described first how much connection leads (L1) are substantially vertical with respect to described second how much connection leads (L2).

4. plastic container (1) described in any one claim as the aforementioned, is characterized in that, at least one main rib (6a, 6b, 8a, 8b) extends to the edge (20) of described bottom (2).

5. plastic container as claimed in claim 4 (1), is characterized in that, described bottom (2) have symmetrical cross section.

6. plastic container as claimed in claim 4 (1), is characterized in that, the edge (20) of described bottom (2) has four straight line portioies (22) that extend that are substantially in line.

7. plastic container as claimed in claim 4 (1), is characterized in that, the edge (20) of described bottom (2) has four fillet parts (24) with certain radius of curvature.

8. plastic container as claimed in claim 1 (1), is characterized in that, four times rib (16a, 16b, 18a, 18b) is located between main rib (6a, 6b, 8a, 8b).

9. plastic container as claimed in claim 8 (1), is characterized in that, the corresponding connection lead (N1, N2) of two radially relative inferior ribs (16a, 16b, 18a, 18b) is arranged to substantially mutually vertical.

10. plastic container as claimed in claim 6 (1), is characterized in that, described main rib (6a, 6b, 8a, 8b) is parallel or perpendicular to described straight line portion (22) and extends.