ES2961875T3 - Bottle made of resin - Google Patents

Abstract

A plurality of depressions (8) are provided in at least a partial region of a bottle (1) made of resin, each of which has a surface area of 1-100 mm2 and is arranged in a predetermined pattern. (Automatic translation with Google Translate, without legal value)

Description

DESCRIPTION

Bottle made of resin

TECHNICAL FIELD

This invention relates to a bottle made of resin.

PREVIOUS TECHNIQUE

A bottle made of resin with a beverage such as a soft drink may sometimes experience a build-up of internal pressure, for example, when it is filled with carbonated beverage or placed at a certain high temperature (for example, approximately 40°C) in the course of its commercial distribution in the market. As a result, the resin-made bottle may suffer deformation of its bottle shape due to expansion resulting from the build-up of internal pressure during/after commercial distribution. Accordingly, a reinforcing rib is generally provided to suppress such deformation of the bottle shape.

Document JP 3 088764 U discloses a resin container, which has a cylindrical body and is blow molded using a thermoplastic resin. A continuous pattern is formed over the body to extend both in the circumferential direction as well as in the height direction.

Document JP 2009102029 discloses a bottle according to the preamble of claim 1, and refers to a synthetic resin bottle, on which the convex surface is formed, which expands outwards in the radial direction of the bottle. A plurality of granular recessed portions or projecting portions are formed on the convex surface.

JP 2013184722 A describes a plastic bottle, which includes a nozzle, a body portion and a bottom portion. The body consists of an upper half and a lower half. A plurality of recesses, extending to form a circumferential portion in between, are respectively provided in multiple steps.

US 2005/247664 A1 relates to inverting vacuum panels formed in a plastic container. The vacuum panels have, at least in part, a convex configured shape and a series of equidistantly spaced teeth disposed thereon.

Document JP 2010285169 A refers to a synthetic resin bottle.

SUMMARY OF THE INVENTION

Problems to be solved by the invention

In recent years, an advantageous aesthetic design effect is sought by providing ornamentation on the bottle itself. However, due to the deformation of the shape of the bottle resulting from the build-up of internal pressure, such aesthetic effect can sometimes be lost due to ornamentation.

Therefore, it is desired to make a bottle made of resin capable of suppressing deformation of the shape of the bottle, while providing the intended aesthetic effect.

Solution

The invention is defined by independent claim 1. Other embodiments of the invention are defined by the dependent claims.

A bottle made of resin according to the present invention comprises a plurality of depressions, each of which has a surface area of 1-100 mm2 provided in a predetermined pattern in at least a partial region thereof, wherein one surface of each depression is stamped. Each depression has a rhombus shape, and the depressions are arranged in a hexagonal lattice pattern.

With this arrangement, the deformation of the bottle shape due to the internal pressure build-up can be effectively suppressed by the plurality of depressions. Additionally, aesthetic effect may be provided by means of a predetermined pattern, as described.

Some preferred embodiments of the bottle made of resin according to the invention will be explained below. However, it is understood that the scope of the invention should not be limited by the preferred embodiments described below.

By embossing the surface of each depression, the deformation of the bottle shape due to the build-up of internal pressure can be even more effectively suppressed. In addition, the patterned surface makes each depression appear more conspicuous, thereby improving visibility, so that the aesthetic effect due to the depression can be further improved. It is necessary to press resin firmly against a mold at the time of blow molding to form such a patterned surface. With this embodiment, the embossed surface can be formed in a favorable manner because the resin is caused to follow a protruding portion of the mold and be pressed forcefully against the protruding portion of the mold during the formation of the embossed surface in the depression.

According to the invention, each depression has a polygonal shape and a rhombus shape.

With the above arrangement, each depression is provided with a highly symmetrical shape, so that the deformation of the bottle shape due to pressure buildup can be suppressed even more effectively. Furthermore, the aesthetic effect can also be further improved.

According to a preferred embodiment, the depressions are formed in one or more ribbon-shaped regions, which occupy a predetermined area of the entire bottle.

By forming the depressions through one or more ribbon-shaped regions, the deformation of the bottle shape due to the build-up of internal pressure can be even more effectively suppressed.

According to a preferred embodiment, a rib region is formed, having a plurality of ribs juxtaposed with each other in a predetermined region in a height direction of the bottle where no depressions are provided.

With the plurality of depressions, the deformation of the bottle shape due to the accumulation of internal pressure can be suppressed. However, the depressions will dent outwards if an admissible range is exceeded, thus damaging the aesthetic appearance. Then, according to the arrangement described above, instead of merely providing all the depressions on the bottle, a region of ribs is provided. With this, in the case of internal pressure accumulation, the deformation occurs first in the region of the ribs, before in the depressions. In this way, the denting of the depressions can be suppressed and the deformation of the bottle shape due to the build-up of internal pressure can be even more effectively suppressed.

According to a preferred embodiment, the rib region is formed in a region in the height direction, where a label is provided.

With the arrangement described above, since the region of the ribs, inferior in aesthetic effect, is hidden by the label, it is possible to maintain the aesthetic effect, while suppressing the deformation of the bottle shape due to the accumulation of internal pressure.

According to a preferred embodiment, each rib in the region of the ribs is a discontinuous rib with a plurality of recesses, each of which has a predetermined length included herein and are spaced apart from each other and provided continuously in the direction of rib extension. With the arrangement described above, since each rib is formed of discontinuous rib, it is possible to effectively suppress the elongation of the rib in the extension direction with discontinuous portions present between the recesses. In this way, the deformation of the bottle shape due to the build-up of internal pressure can be even more effectively suppressed.

According to a preferred embodiment, the region of the ribs is formed such that in a direction of juxtaposition of the discontinuous rib, discontinuous portions are formed between the recesses in the discontinuous rib so that they do not overlap with the discontinuous portions of any discontinuous rib adjacent to them.

If the recess and the discontinuous portion were to overlap in the direction of juxtaposition, the recess would act as a spring, thus providing a risk of reduced strength of the bottle. On the other hand, with the arrangement described above, since the discontinuous portions are provided not to overlap each other in the adjacent discontinuous ribs, it is possible to effectively suppress the occurrence of the problem due to the overlap of the recess and the discontinuous portion in the direction of juxtaposition.

According to a preferred embodiment, in the region of the ribs, the rib is formed to extend in a circumferential direction.

With the arrangement described above, by causing the rib to extend in the circumferential direction, it is possible to effectively suppress the expansion of the bottle in the radial direction.

According to a preferred embodiment, the bottle made of resin is intended for carbonated beverages. According to the arrangement described above, even in a carbonated beverage bottle that tends to be subjected to internal pressure buildup, the deformation of the bottle shape due to internal pressure buildup can be even more effectively suppressed.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a front view of a bottle made of resin.

Figure 2 is an enlarged view of depressions.

Figure 3 is a front view of a bottle made of resin according to another embodiment.

Figure 4 is a front view of a bottle made of resin according to an embodiment, which does not form part of the present invention; and

Figure 5 is an enlarged view of depressions in the embodiment of Figure 4.

ACHIEVEMENTS

Embodiments of a bottle made of resin in relation to the invention will be explained with reference to the accompanying drawings. A bottle 1 made of resin in relation to this embodiment, as shown in Figure 1, includes a mouth portion 2 as a liquid nozzle, a shoulder portion 3 continuous with the mouth portion 2 and having a diameter that progressively increases towards a lower front direction, a cylindrical body portion 4 continuous with the shoulder portion 3 and a lower portion 5 that forms the bottom of the bottle 1 made of resin. The bottle 1 made of resin in relation to this embodiment is made for a carbonated drink; and to suppress the denting phenomenon due to a build-up of internal pressure, the lower portion 5 is provided with a so-called petal shape. Furthermore, the bottle 1 made of plastic in relation to this embodiment implements an arrangement capable of effectively suppressing the deformation of the bottle shape, while providing an advantageous aesthetic effect. The bottle 1 made of resin in relation to this embodiment will be explained in detail below.

First of all, the bottle 1 made of plastic in relation to this embodiment can be integrally molded by a stretch molding technique, such as a biaxial stretch blow molding technique, using a thermosetting resin, such as polyethylene, polypropylene, polyethylene terephthalate, etc., as its main material. The capacity of the bottle 1 made of plastic is approximately 1.5 liters in this particular embodiment. However, the capacity is not particularly limited, but can vary from 200 milliliters to approximately 2 liters, as is often used commercially. The liquid may be, in addition to a carbonated beverage, a beverage such as drinking water, tea, juice, coffee, chocolate, soft drink, (strong) alcoholic beverage, milk-based beverage, and soup, or a liquid condiment, such as like sauce and soy sauce etc.

As shown in Figure 1, in the bottle 1 made of plastic in relation to this embodiment, in at least a partial region, more particularly, across a plurality of (two) circumferential regions 6, 7 in the form of a ribbon, occupying a predetermined region of the bottle as a whole, a plurality of depressions 8 are provided. The ribbon-shaped region 6 corresponds to the region extending from the lower lateral portion of the shoulder portion 3 to the upper lateral portion of the body portion 4. The ribbon-shaped region 7 corresponds to the region extending to the lower lateral portion of the body portion 4, more particularly extending from the proximity of the center of the body portion 4 to the boundary between the body portion 4 and the lower portion 5. Therefore, the body portion 4 is provided with continuous depressions 8, with the exception of a region of ribs 9, which will be described later. Furthermore, each depression 8 has a rhombus shape, having diagonal dimensions of 4 mm (vertical) x 2 mm (horizontal) and having a depth of 0.5 mm. Furthermore, as shown in Figures 1 and 2, the respective depressions 8 are spaced apart from each other and are arranged in a regular hexagonal lattice pattern.

With such depressions 8 described above, it is possible to effectively suppress the deformation of the bottle shape due to internal pressure buildup. Furthermore, since each depression 8 is in the shape of a rhombus, and the respective depressions 8 are arranged in the hexagonal lattice pattern, a large number of such depressions 8 are densely provided in the ribbon-shaped regions 6, 7, thereby improving This way additionally the deformation suppression effect. Furthermore, the arrangement of such rhombus shapes symmetrically in the regular pattern also serves to enhance the advantageous aesthetic effect.

Furthermore, the dimensional arrangement of each depression 8 defined by the diagonal sizes of approximately 4 mm (vertical) x 2 mm (horizontal) serves to ensure large curvature in the edge portions of the depressions 8. This further improves the suppression effect. of deformation. Incidentally, preferably, the dimensions of each depression 8 may be diagonal lengths varying, respectively, from 1 to 10 mm and the area is 1 to 100 mm2. That is, if the area is equal to or less than 100 mm2, the curvature in the boundary portion of the depression 8 is large, so that the deformation suppression effect can be improved. On the other hand, with an area less than 1 mm2, the exact formation of the depression 8 with molding techniques, such as blow molding, would be difficult. Furthermore, its depth is not limited to 0.5 mm but can vary from 0.2 to 3 mm.

Furthermore, a patterned surface (irregular fine pattern) is formed on the surface of each depression 8. This stamped surface can be formed by pressing an amount of resin against a mold at the time of blow molding, the mold being provided with corresponding stamped surfaces in projecting portions corresponding to the depression 8. As the stamped surfaces are formed by means of By pressing resin tightly against the projecting portions of the mold, patterned surfaces can be favorably formed. With the formation of such embossed surfaces, bottle deformation due to internal pressure build-up can be even more effectively suppressed. Furthermore, the patterned surfaces cause the depression 8 to appear more conspicuous, thereby providing an improvement in the aesthetic effect, so that the aesthetic effect due to the depressions 8 can also be improved.

Furthermore, in the bottle 1 made of resin in relation to the present embodiment, in a predetermined region in the height direction that does not have depressions 8 (specifically, a height region where a label should be provided), a " “rib region” 9, which has a plurality of ribs 10, extending in the circumferential direction and juxtaposed with each other. The plurality of depressions 8 allow effective suppression of deformation of the bottle shape due to internal pressure buildup, as described above. However, in the case of exceeding an admissible range, each depression 8 will be dented, thus damaging the advantageous aesthetic effect. Then, by providing the rib region 9, this rib region 9 will be deformed before each depression 8 with internal pressure accumulation, and such denting phenomenon of each depression 8 can be suppressed. Furthermore, as the ribs 10 are extend in the circumferential direction, the dent of the bottle made of resin in the radial direction due to the formation of internal pressure can be effectively suppressed.

The respective ribs 10 in the region of the ribs 9 are discontinuous ribs with a plurality of recesses 11, each of which has a predetermined length that is interposed to space the rib (portions) 10 from each other, the recesses 11 continuously in the extension direction (in this embodiment, the circumferential direction) of the ribs 10. Furthermore, in the juxtaposition direction (in this embodiment, the height direction) of the discontinuous rib 10, discontinuous portions are formed 12 between the recesses 11 in the discontinuous rib 10 so that they do not overlap with the discontinuous portions 12 in the adjacent discontinuous rib 10. More particularly, an arrangement is provided so that a central portion of the respective recess 11 in the discontinuous rib 10 is aligned with a central portion of the corresponding discontinuous rib 12 of the adjacent discontinuous rib 10. In this way, the recesses 11 and the discontinuous portions 12 alternate with each other in the adjacent discontinuous ribs 10. As each rib 10 is formed as such a discontinuous rib, the presence of the discontinuous portion 12 between the recesses 11 allows the effective suppression of the elongation of the rib 10 in the direction of extension, so that it can be suppressed in a manner Even more effective is the deformation of the shape of the bottle due to the accumulation of internal pressure. On the other hand, if the recess 11 and the discontinuous portion 12 were to overlap each other in the direction of juxtaposition, the recess 11 would act as a spring, thus avoiding the risk of deterioration of the strength of the bottle. However, in the above arrangement, since the discontinuous portions 12 are provided not to overlap each other in the direction of juxtaposition in the adjacent discontinuous ribs 10, the problem resulting from the overlap of the recess 11 and the discontinuous portion 12 in the direction of juxtaposition.

Furthermore, in the resin-made bottle 1 of this embodiment, the rib region 9 is formed in the height region, where a label should be provided. With this, since the region of ribs, poor in aesthetic effect, is hidden by the label, it is possible to maintain the advantageous aesthetic effect, while suppressing the deformation of the shape of the bottle due to the accumulation of internal pressure.

As described above, with the bottle 1 made of resin of the present embodiment, due to the provision of depressions 8 of a predetermined size in a predetermined pattern, it is possible to suppress the deformation of the shape of the bottle due to accumulation of internal pressure, while providing aesthetic effect. Furthermore, with the provision of the rib region 9, in addition to the plurality of depressions 8, the dent of the respective depression 8 can be suppressed, so that the deformation of the bottle shape can be suppressed even further. effective, so that it is possible to suppress the deformation of the bottle shape in an even more effective way, while maintaining the advantageous aesthetic effect thanks to the plurality of depressions 8.

[Other realizations]

Finally, other embodiments of the bottle made of resin will be explained in relation to the present invention. (1) In the above embodiment, an arrangement in which the plurality of depressions 8 are formed in all regions 6, 7 in a ribbon-like manner, that is, completely, has been explained as an example. However, the embodiment of the present invention is not limited thereto. Instead, it will be sufficient to provide the plurality of depressions 8 in at least a partial region of the bottle 1 made of resin. Furthermore, in the above embodiment, the plurality of depressions are formed in a part of the shoulder portion 3, but not in the bottom portion 5. However, when a ribbon-shaped region is to be formed from such depressions 8, the Ribbon-shaped region may have any desired shape and may also be provided in any desired region. For example, as shown in Figure 3, the ribbon-shaped regions 6, 7 may be provided throughout the region of the circumferential faces of the shoulder portion 3, the body portion 4 and the bottom portion 5, with the exception of the rib region 9. As another alternative, as shown in Figure 4, the ribbon-shaped regions 13 formed by the depressions 8 may be provided equidistant in the circumferential direction, so that striped patterns formed from The ribbon-shaped regions 13 may appear on the bottle 1 made of resin.

(2) In the above embodiment, an arrangement has been explained, as an example, in which in a predetermined region in the height direction that has no depressions 8, which is also a height region, where a label must be provided , a rib region 9 is provided, having a plurality of discontinuous ribs 10, extending in the circumferential direction and juxtaposed against each other. However, the present invention is not limited thereto. For example, the rib region 9 may not be provided, or a plurality of depressions 8 may be provided in an area where the rib region 9 was provided. Furthermore, the rib 10 is not limited to the rib extending in the circumferential direction, but may extend in the height direction or in an oblique direction. Still further, unlike the previous embodiment, the discontinuous portions 12 may be provided to overlap each other in the region of juxtaposition on the adjacent ribs 10. Furthermore, the rib 10 may not be the discontinuous rib and may be without the discontinuous portion 12.

(3) In relation also to other embodiments, it is understood that the embodiments disclosed in this detailed disclosure are only exemplary in all aspects, and the scope of the present invention is not limited in this way. One skilled in the art could easily understand that modifications can be made within a scope, without departing from the essence of the present invention, which is defined by the appended claims.

INDUSTRIAL APPLICABILITY

The invention is applicable, for example, to a bottle made of resin.

DESCRIPTION OF SIGNOSI Bottle made of resin

6, 7 Ribbon-shaped region

8 Depression

9 Rib region

10 Rib (discontinuous rib)

I I Recess

12 Serving Discontinuous

13 Ribbon-shaped region

Claims (8)

1. A bottle (1) made of resin, comprising a plurality of depressions, each of which has a surface area of 1-100 mm2, provided in a predetermined pattern in at least a partial region thereof, in where a surface of each depression (8) is stamped, and where the respective depressions (8) are arranged in a hexagonal lattice pattern, characterized in that each depression (8) has a rhombus shape. 2. The bottle (1) made of resin of claim 1, wherein the depressions (8) are completely formed in one or more regions (6, 7) in the form of a ribbon, which occupy a predetermined area of the entire bottle ( 1). 3. The bottle (1) made of resin of the claim of claim 1 or 2, wherein a region of ribs (9), having a plurality of ribs (10) juxtaposed with each other, is formed in a predetermined region in a direction of the height of the bottle (1), where no depressions (8) are provided. 4. The bottle (1) made of resin of claim 3, wherein the region of ribs (9) is formed in a region in the height direction, where a label is provided. 5. The bottle (1) made of resin of claim 3 or 4, wherein each rib (10) in the region of ribs (9) is a discontinuous rib (10) with a plurality of recesses (11), each of which has a predetermined length, which is included herein, and spaced apart from each other and provided continuously in the direction of the extension of the rib (10). 6. The bottle (1) made of resin of claim 5, wherein the region of ribs (9) is formed in such a way that in a direction of juxtaposition of the discontinuous ribs, discontinuous portions (12) are formed between the recesses ( 11) on the discontinuous ribs so that they do not overlap with the discontinuous portions (12) of any discontinuous rib (10) adjacent to them. 7. The bottle (1) made of resin of any one of claims 3 to 6, wherein in the region of ribs (9), the plurality of ribs (10) are formed so that they extend in a circumferential direction. 8. The bottle (1) made of resin of any one of claims 1 to 7, wherein the bottle (1) made of resin is for a carbonated drink.