JP3053884U - Bottle type resin container - Google Patents

Abstract

(57) [Summary] [Purpose] To enable easy compression deformation. [Structure] Opening / closing opening 14 with cap 12 removable
At one end. A peripheral wall 20 defined between the shoulder portion 16 and the bottom portion 18 is formed as a bellows wall that can extend and contract along a line connecting the mouth portion 14 and the bottom portion.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 This invention relates to a bottle-shaped resin container represented by a PET bottle or the like.

[0002]

[Prior art]

 In general, bottle-type resin containers made of polyethylene-terephthalate, represented by so-called PET bottles, are widely used as containers for drinking water such as soft drinks and juices, and seasonings such as soy sauce and mirin. I have.

[0003] For example, drinking water and the like using PET bottles as containers are variously commercialized from small-capacity about 500 ml to large-capacity about 2 liters. Considering the difficulty of handling, it is now the mainstream of containers instead of glass bottles.

In addition to this kind of PET bottles, bottle-type resin containers are used in a wide range of fields as containers for edible oils, various liquid detergents, shampoos, rinses and the like.

[0005]

[Problems to be solved by the invention]

 By the way, from the viewpoint of environmental protection in recent years, recycling of plastic bottles is particularly recommended. In particular, since large PET bottles have a large volume, general consumers are being called upon to reduce their size by compression, etc. in order to prevent a reduction in the efficiency of collection and storage as recycled products. I have.

However, known PET bottles do not take into account compactness after consumption. In other words, known PET bottles often have a shape that emphasizes the aesthetic appearance of a product, that is, includes a lot of irregularities in a so-called design. However, its compression deformation is not easy.

[0007] Therefore, usually, a compression deformation shape in which the PET bottle is crushed in the direction perpendicular to the axis, that is, the line from the mouth to the bottom, is generally used as a compact shape for recycling. . However, with such a degree of compression deformation, it cannot be said that the pet bottle is sufficiently compact, and it is unlikely that collection and storage as a recycled product are being performed efficiently.

[0008] Similarly, resin containers such as edible oils and shampoos, which are not currently subject to recycling, are required to be compact when disposed. However, since these resin containers are also generally thick, their compression deformation is not easy, and the current situation is that they are disposed without being deformed.

This invention aims at providing a bottle-shaped resin container that can be easily compressed and deformed.

[0010]

[Means for Solving the Problems]

 In order to achieve this object, according to an embodiment of the present invention, at least one of a bottle-shaped resin container having an opening that can be opened and closed with a cap attached and detached at one end is adjacent to the opening. The entire region of the peripheral wall defined between the shoulder and the bottom at the other end with respect to the mouth at one end is formed as a bellows wall that is stretchable along a line connecting the mouth and the bottom.

[0011]

[Embodiment of the invention]

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

As shown in FIG. 1 (A), a bottle-shaped resin container 10 according to the present invention has a mouth 14 having a detachable cap 12 at one end, for example, a bottle-shaped container provided at an upper end thereof. Of synthetic resin material.

As the bottle-type resin container 10, for example, a polyethylene-terephthalate-made bottle-type container, that is, a beverage container such as soft drinks and juices, and a container for seasonings such as soy sauce and mirin are widely used. So-called PET bottles.

The cap 12 is a general screw type, and since the configuration and functions of the cap and the mouth 14 are not different from those of the related art, detailed description thereof will be omitted.

As shown in FIG. 1A, in this kind of plastic bottle (bottle-shaped resin container) 10, for example, a portion adjacent to a mouth portion 14, that is, a shoulder portion 16 located below the mouth portion 14, The one end (upper end) with respect to the other end of the mouth, that is, between the lower end and the bottom portion 18 is defined as a peripheral wall 20 forming the main body. In one embodiment of the present invention, for example, the entire area of the peripheral wall 20 is self-expanding and contractible along a line connecting the mouth 14 and the bottom 18, that is, a bellows that can expand and contract vertically in the drawing. It is formed as a wall (see FIG. 1B).

In such a peripheral wall 20 serving as a bellows wall, since the elastic wall can be easily expanded and contracted, the height of the PET bottle 10 is reduced under compression in a direction in which the mouth portion 14 and the bottom portion 18 are brought close to each other. Can be easily and easily reduced as shown in FIG.

In the plastic bottle 10 of the present invention, the contents 22, that is, drinking water and the like are filled and manufactured and sold in the extended state shown in FIG. 1A. Then, the contents 22 are consumed. For example, after the inside of the bottle is emptied and the cap 12 is removed and the PET bottle 10 is compressed in the vertical direction in the drawing, the shrinkage deformation of the peripheral wall (bellows wall) 20 is reduced. Originally, the overall length is reduced as shown in Fig. 1 (B). Further, if the mouth portion 14 is closed with the cap 12 as shown in the reduced state shown in FIG. 1 (B), the PET bottle 10 is maintained in the reduced state under negative pressure in the inside. You.

As described above, according to the present invention, since the peripheral wall 20 of the plastic bottle is formed as a stretchable bellows wall, the compressive deformation after the consumption of the contents does not require a large amount of force. Easy to do. That is, since the consumer can compress and deform the plastic bottle 10 without feeling much burden, there is great expectation for the spread and permeation of the compact plastic bottle at the time of recycling.

As described above, if the reduction in the size of the plastic bottle 10 at the time of recycling permeates the general consumers, the efficiency of collection and storage of the recycled product is increased, and the workability of the collection work is sufficiently improved.

Here, in the above description, the compression deformation in a state where the plastic bottle 10 is emptied has been specifically described. However, the present invention is not limited to the empty state and may be, for example, shown in FIGS. As shown in B), the plastic bottle can be compressed and deformed by an amount corresponding to the remaining amount of the content while the remaining content 22 consumed by an appropriate amount is left inside the device. According to this, it becomes possible easily.

As described above, if the PET bottle 10 is reduced by an amount corresponding to the remaining amount of the contents 22 and the cap 12 is closed in that state, a capacity suitable for the remaining amount of the contents can be defined in the inside. Therefore, the amount of air (oxygen) retained in the plastic bottle is minimized. In other words, oxidation of the content caused by the contact between the content 22 of the PET bottle 10 and the air, that is, alteration of the content can be sufficiently suppressed, so that a longer storage period of the content can be expected. In particular, in carbonated drinking water and the like, the time required for evaporating the carbonated component, that is, so-called breathing, can be extended, so that the properties of carbonated drinking water can be maintained for a longer time.

If the height of the plastic bottle 10 is reduced in accordance with the remaining amount of the contents 22, the space for saving the storage space can be easily reduced.

In the embodiment of the present invention, a plastic bottle as a container for soft drinks, drinking water such as juice, and seasonings such as soy sauce and mirin is embodied as a bottle-shaped resin container. However, considering the portability at the time of contraction and the capacity at the time of extension, the value of use as a portable bottle for leisure can be fully expected with the bottle-type resin container of the present invention.

Here, in one embodiment of the present invention, a configuration in which the entire area of the peripheral wall 20 is a bellows wall is embodied, but the entire length thereof can be reduced under contraction deformation of the bellows wall portion. However, the present invention is not limited to this. For example, as shown in FIG. 3 (A), the peripheral wall and the shoulder 16 at the upper part of the peripheral wall are formed as a continuous bellows wall, or as shown in FIG. 3 (B). Alternatively, the predetermined range of the peripheral wall may be a partial bellows wall.

In the embodiment of the present invention, the contents 22 of the plastic bottle 10 are exemplified by soft drinks, drinking water such as juice, and seasonings such as soy sauce and mirin. However, since these are merely examples of the contents, the present invention is not limited thereto, and the present invention may be applied to, for example, containers for alcohol such as sake, beer, and wine.

Further, in this embodiment, although the shape (cross-sectional shape), capacity, and the like of the plastic bottle 10 are not particularly specified, the shape is substantially square, substantially rectangular, substantially circular, or substantially various. It may be any shape such as a square shape, and its capacity may be about 500 ml to 2 liters or more.

By the way, in the embodiment of the present invention, a recyclable plastic bottle is embodied as a bottle-shaped resin container. However, the present invention is not limited to this, and the present invention may be applied to, for example, edible oil resin containers that are not currently being recycled and resin containers such as shampoo and rinse.

If the present invention is applied to this type of bottle-shaped resin container that is not subject to recycling, similar to the above-mentioned PET bottle, after the contents are consumed, the resin container is turned into a bellows wall. By contracting and deforming, the overall length can be reduced, so that compactness at the time of disposal, that is, compactness of garbage can be sufficiently achieved.

Further, if the total length of the resin container is reduced in accordance with the remaining amount of the contents each time the contents decrease, the deterioration of the contents due to oxidation is sufficiently suppressed as in the case of the PET bottle. it can.

The embodiment of the present invention described above is for explaining the present invention, and does not limit the present invention in any way. It goes without saying that all of these are included in the present invention.

[0031]

[Effect of the invention]

 As described above, the bottle-type resin container according to the present invention allows consumers to reduce the size without feeling a burden, and is expected to see the spread and spread of compactness during recycling or disposal. it can. As a result, the collection and storage efficiency of plastic bottles to be recycled can be improved, and the disposal and collection efficiency of plastic containers not to be recycled can be improved.

Further, since the height according to the remaining amount can be appropriately set each time the content is reduced, the quality of the content caused by oxidation can be sufficiently suppressed.

[Brief description of the drawings]

FIG. 1 is a schematic partial side view of a bottle-shaped resin container according to the present invention at the time of extension and contraction.

FIGS. 2A and 2B are schematic partial side views of the bottle-shaped resin container at the time of extension and at the time of partial contraction.

FIG. 3 is a schematic partial side view of a bottle-shaped resin container showing a modification.

[Explanation of symbols]

 10 Bottle type resin container (PET bottle) 12 Cap 14 Mouth 16 Shoulder 18 Bottom 20 Perimeter wall (bellows wall) 22 Contents

Claims (2)

[Utility model registration claims] 1. A bottle-shaped resin container having at one end a mouth that can be opened and closed under the attachment and detachment of a cap, wherein at least a shoulder adjacent to the mouth and a bottom at the other end with respect to the mouth at one end. A bottle-shaped resin container, wherein an entire area of a peripheral wall defined therebetween is formed as a bellows wall which can be stretched and contracted along a line connecting a mouth portion and a bottom portion. 2. A bottle-shaped resin container having at one end a mouth which can be opened and closed with a cap attached / detached, between a shoulder adjacent to the mouth and a bottom at the other end with respect to the mouth at one end. Of the defined peripheral wall, at least a partial predetermined range in a direction along a line connecting the mouth and the bottom,
A bottle-shaped resin container formed as a bellows wall that is stretchable along the line.