JPH10157721A - Hollow container easy to compress for disposal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hollow synthetic resin container which can be easily crushed flat when a used hollow container is to be thrown away while the crushed container can be crumpled for easily reducing a volume. SOLUTION: A peelable label 5 is partially provided on a center wall face of a flexible hollow container which can stand by itself blow-molded of synthetic resin, wherein a used empty container can be crushed flat and also it can be compressed small by bending it two-fold at the center. Then the label is peeled off, a locking hole 5b formed of perforations is opened, and the locking hole is hooked on a neck 2 of the container, so that the container can be kept in a reduced volume.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hollow container obtained by blow-molding a synthetic resin, and more particularly, to a hollow container for accommodating a liquid content, which has sufficient strength at the time of transfer or use. Although it has, when it is discarded after use, it can be easily crushed flat and
The present invention relates to a hollow container in which a crushed container is easily rolled and compacted.

[0002]

2. Description of the Related Art A conventionally used synthetic resin hollow container has a hard mouth and neck for screwing a lid, a body formed by blow molding through a shoulder, and a lower end of the body. And the bottom part formed by blow molding and having a reduced thickness can withstand shocks, pressures and other external forces generated when filling, transferring and using the contents. In order to provide strength, rigidity is provided by providing uneven ribs of various shapes on the wall surface, and a spherical or other curved thick portion is provided at the bottom to deform or crack. Is devised so as not to occur.

[0003] In recent years, hollow containers made of synthetic resin which are lightweight and hard to be broken have been frequently used due to changes in physical distribution and convenience in life, among which, among others, non-polluting and excellent transparency. From the standpoint of high mechanical strength and the like, bottles and other hollow containers formed by biaxially stretch blow-molding polyethylene terephthalate resin (hereinafter referred to as PET resin) have come to be used favorably. There is a problem that it is difficult to efficiently collect garbage because the used garbage takes up a large volume because the used garbage is directly discarded as garbage. However, with the increasing use of synthetic resin hollow containers, as the proportion of these containers increases while being disposed of as household waste, it becomes one of the causes of social environmental problems, Since it has become necessary to collect and reuse empty containers to avoid wasting resources, efficient collection with a reduced volume at the time of disposal has become an issue.

In order to cope with such social demands, in order to collect used empty containers, it is necessary to keep the containers from becoming bulky when discarding unnecessary containers. Japanese Patent Application Laid-Open No. 7-3
As described in Japanese Patent No. 15382 and Japanese Utility Model Registration No. 30054885, a foldable bellows-like groove is provided in the cylindrical wall of the hollow container, and the used empty container is compressed in the axial direction. It is possible to reduce the volume by this, and Japanese Utility Model Laid-Open No. 5-46717 and 7-
No. 33841, a folding line portion is provided on the side wall and the bottom of the body of the hollow container, and the empty container is folded flat along the folding line to easily reduce the volume. There is something we can do.

However, the former structure of bellows compression simply shrinks in the vertical direction, so that a space remains in the center and it is impossible to greatly reduce the volume as waste. Also, there is a possibility that the shape easily returns to the original shape. The latter, which is folded flat, is difficult to hold the folded state stably because air easily enters the container with the elastic return force of the folded container, and at the same time, the body wall portion However, there is a disadvantage that there is a problem in strength because there are few reinforcing ribs.

Therefore, the applicant of the present application has improved the drawbacks of the container having the flat folding structure, and as shown in FIG. 5, the screw portion 16 and the neck ring 17 formed on the mouth and neck portion 11 of the container have no problem. Forming a continuous portion 18 and forming a concave groove portion 19 depressed inward by pressing force on the bottom portion 14,
A concave portion 21 is formed on one wall surface of the opposing side walls 13a and 13b on the body portion of the container, and a protruding portion 22 is formed on the other wall surface facing the concave portion, and the container is folded flat. In this case, the projection 22 is fitted into the recess 21 so as to be stably held flat.
No. 01442.

However, the above-described container of the prior invention has uneven reinforcing ribs 21 over a wide area of the body side wall.
22 is formed, it has sufficient rigidity to withstand shocks and other external forces at the time of filling, transferring and using the contents, and is squashed flat after use. Is possible, the space is hardly formed inside the container, so the container is not bulky, and the recovery work for regenerating or disposing is very easy as compared with the conventional container. Since the container discarded in the form has only been crushed flat and has a large surface area, there is a problem that the shape of the surface area is large and it takes time to store it in the collection container.

[0008]

SUMMARY OF THE INVENTION Normally used PET
If a resin container is to be efficiently collected for regeneration or disposal, if it is used as it is, the volume is large and it is very bulky, and the collection efficiency is poor. However, the conventional container has a problem that it is very difficult to flatten it, and a container made of a synthetic resin which can easily dispose of a used container into a flat shape and dispose it in a small shape can be disposed. The emergence of has come to be desired. In order to solve such a problem, the present invention has a strength capable of withstanding an external force at the time of filling, transferring and using the contents, and easily pushes the flat shape after use. An object of the present invention is to provide a synthetic resin hollow container that can be crushed, rolled up and discarded, and easily collected.

[0009]

SUMMARY OF THE INVENTION According to the present invention, the container body can be crushed into a substantially large flat shape after the contents have been almost completely discharged, and the flat body can be crushed. Can be bent at the center, and the label can be peelably adhered to the front or rear center wall of the container body and connected at the lower end, so that the hollow container can be held in a bent state. To That is, a partially peelable label is provided on the center wall surface of the blow-molded free-standing hollow container, and the container obtained by flattening the container after use is further folded in two at the center. After being bent and compressed to a small size, the label is peeled off, a locking hole formed by a perforation is opened, the hook is hooked on the mouth and neck of the container, and the container can be held in a reduced state.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS After completely discharging the contents of a used hollow container 1, the side wall front surface 3a and the side wall rear surface 3b of the body 3 are pressed by pressing the side wall of the container or by other means. When the label 5 is compressed in a flat shape so as to be in contact with it, the label 5 is peeled off from the front surface of the side wall, and the perforation 5a is cut off so that the locking hole 5b is formed.
Is formed, and the body 3 of the flattened container is bent in two on the rear surface 3b side, and the locking hole 5b is hooked on the mouth and neck portion 2 of the container and fixed in a folded state. The empty container is compressed to a smaller volume and discarded.

[0011]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a container according to the present invention. As shown in FIG. 1, the present invention is applied to a torso 3 connected to a mouth and neck 2 via a shoulder.
The hollow container 1 composed of the bottom and the bottom 4 is molded into a roughly large-sized appearance by blow molding of PET resin. When the inside of the container 1 is emptied, when the body 3 is pressed, the inner surface of the front side wall 3a and the inner surface of the rear side wall 3b come into close contact with each other, and the bottom portion is bent in the middle. The container wall is formed in a structure that can be crushed. A label 5 indicating a trademark or the like is peelably adhered to a central portion of the front wall surface or the rear wall surface of the container 1 by a well-known means such as double labeling or in-mold labeling. Is connected to the wall of the container, and the upper half of the label 5 is perforated 5a.
A locking hole 5b that can be opened is formed.

In the container according to the present invention having the above-described structure, when the container is used or disposed of, the entire contents of the container are discharged, and the body 3 is placed so that the front and rear side walls 3a and 3b are in close contact with each other. After the air in the container is exhausted by pressing, the empty container is flattened as shown in FIG. 2, and then the mouth and neck portion 2 is covered and sealed. Subsequently, the label 5 provided at the center of the side wall is peeled off as shown in FIG.
Is cut to open the locking hole 5b, and the flattened container 1 as shown in FIG. 3 is folded in half from the middle to the side opposite to the surface on which the label 5 is provided. The mouth and neck portion 2 is inserted through the opening 5b, and is held in a folded state as shown in FIG. In this manner, the container of the present invention, which has been folded so as not to be bulky and has a small volume and is compressed, is put into a collection container and collected efficiently,
It is collected and used as a recycled resource, or is discarded and incinerated.

The container used in the above embodiment does not have reinforcing ribs formed on its body wall. However, when reinforcing ribs are provided on the body, the reinforcing ribs are provided in a direction transverse to the axial direction of the container. In this case, there is no problem in bending the container in two. Also, in order to make it easier to flatten the container, the bottom wall portion 4 of the container is easily bent inward or outward, that is, a lateral groove is formed in the center of the bottom portion to form a bottom wall. If you make the shape slightly curved inward, or if you form a lateral crease that can protrude outward in the center of the flat bottom wall, press the side wall of the trunk from both sides Can be more easily flattened. Furthermore, if the rib-shaped bent grooves are provided on both side walls of the container in the vertical direction, the cross-sectional shape of the container can be easily flattened irrespective of the circular or non-circular shape, and the reinforcing effect of the container can be obtained. Will be possible.

[0014]

As described above, the container of the present invention which has been biaxially stretched and blown can be easily flattened and easily crushed when discarded after use. To be disposed of in a fixed state, eliminating the bulk of waste, making it very easy to recycle resources or to recover waste, greatly improving recovery efficiency. Can be done.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a container of the present invention.

FIG. 2 is a perspective view showing a state where an empty container is crushed flat.

FIG. 3 is a perspective view showing a state where an empty container crushed flat is folded in two.

FIG. 4 is a perspective view of the container of the present invention in a compressed state.

FIG. 5 (a) is a front view showing a prior art example of the present invention.

FIG. 5 (b) is a side view of the container shown in FIG. 5 (a) in a flat state after use.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hollow container 2 Mouth and neck part 3 Body part 3a Front side wall 3b Rear side wall 4 Bottom wall part 5 Label 5a Perforation 5b Lock hole 11 Mouth and neck part 13a Side wall 14 Bottom part 16 Screw part 18 Discontinuous part 21 Concave part 22 Protrusion Shape

Claims (5)

[Claims] 1. A hollow container formed by biaxially stretch-blow-molding a synthetic resin comprising a shoulder, a trunk, and a bottom connected to a mouth and neck, wherein the trunk can be crushed flat. A hollow container that is easy to compress and dispose, characterized in that it is configured to be bendable in two and that a label capable of fixing the compressed container is provided on the body. 2. The label is provided so as to be releasably adhered to the wall of the body of the container and joined at the lower end thereof. 2. The hollow container according to claim 1, wherein the hollow container is easily openable by compression. 3. The hollow container is squashed flat to release the label, and is folded and folded in two on the opposite side to the label surface to be compressed and formed on the upper half of the label. 3. The hollow container according to claim 1, wherein the mouth and neck portion of the container is inserted into the stop hole so that the container can be fixed in a compressed state. 4. The hollow container according to claim 1, wherein the label is formed by bonding a double label to a wall surface of a body of the container. 5. The hollow container according to claim 1, wherein the label is formed on an inner wall surface of the container by an in-mold label.