JP2000142655A - Container made of synthetic resin - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a container easily foldable and crushable if required by regulating the flexibility or the rigidity by adjusting the mixing ratio of a low density polyethylene and a high density polyethylene for the container made of a synthetic resin which is molded by mixing the low density polyethylene and the high density polyethylene. SOLUTION: This container made of synthetic resin is equipped with a cylindrical mouth section 15 for discharging, e.g. at the upper part, and a male thread 16 is formed on the outer peripheral side of the mouth part 15, and a cap is screwed with the male thread 16. In this case, the container for liquid is molded using a material by mixing and melting a low density polyethylene chip and a high density polyethylene chip at a specified ratio, and the low density polyethylene is used in a range of 100-50 wt.%, and the high density polyethylene is used in a range of 0-50 wt.%. By this constitution, the container is made more flexible by increasing the weight percentage of the low density polyethylene, and the container is made to have a higher rigidity by increasing the weight percentage of the high density polyethylene.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a synthetic resin container,
In particular, the present invention relates to a liquid container made of a synthetic resin molded body, and more particularly to a synthetic resin container having a pouring port for pouring a liquid filled therein.

[0002]

2. Description of the Related Art Conventionally, containers made of synthetic resin have been widely used for supplying various chemical solutions, fossil fuels and the like. That is, it is formed of a polymer material such as a polyethylene resin, and is filled with a chemical solution or a fossil fuel in a substantially rectangular hollow main body. Such a conventional container is formed of, for example, a high-density polyethylene resin and has a weight of, for example, 240 g when the capacity is 4 liters.

[0003]

A conventional plastic container of this type is made of a high-density polyethylene molded body as described above, and is hard and not crushed. It was often treated as. For this reason, there is a problem that it takes time to dispose. If left as it is, it does not collapse naturally, causing environmental problems.

[0004] The present invention has been made in view of such problems, and is made of a synthetic resin container that can be folded and crushed as necessary, so that it is not bulky at the time of disposal. The purpose is to provide.

[0005]

An object of the present invention is to provide a synthetic resin container which is formed by mixing low-density polyethylene and high-density polyethylene, wherein the mixing ratio of low-density polyethylene and high-density polyethylene is high. The present invention relates to a synthetic resin container characterized in that the degree of flexibility or rigidity is adjusted by adjusting the pressure. Here, the mixing ratio of the low-density polyethylene and the high-density polyethylene may be adjusted within a range of 100 to 50% by weight of the low-density polyethylene and 0 to 50% by weight of the high-density polyethylene.

According to another aspect of the present invention, a rib is formed in a body portion, and when the contents are filled, the rib imparts a required rigidity to the container, and when the container is not used, the rib is folded by the rib to be flat. The present invention relates to a synthetic resin container characterized by the following. Here, the ribs may be formed so as to protrude inside or outside the container.

Still another aspect of the present invention is a synthetic resin container made of a mixed material of low-density polyethylene and high-density polyethylene, which has flexibility and is formed into a predetermined shape, and which has a front surface facing each other. The back and the back are formed by forming horizontal ribs on the upper and lower portions, respectively, while the side surfaces on both sides are formed with a vertically extending rib substantially at the center in the width direction thereof, and At the height corresponding to the horizontal ribs, the ends of the vertical ribs are diagonally branched to both sides, and when the contents are filled, the vertical ribs and the horizontal ribs are placed in this container. The present invention relates to a synthetic resin container characterized by having rigidity. Here, the side faces are folded at substantially the center in the width direction by the vertical ribs so that the front and the back overlap, and then the upper and lower lateral ribs cause the front or the lower to be folded. It may be adapted to fold back to overlap.

[0008]

The flexibility or rigidity of the container is adjusted by adjusting the mixing ratio of the low density polyethylene and the high density polyethylene. In addition, the container can be provided with rigidity by ribs formed on the front, back, or side surfaces. Therefore, even if the container is molded with a soft synthetic resin material, it can maintain a predetermined shape when filled with a liquid. become. In addition, when not in use, the ribs allow the body part to be folded and crushed, so that it is not bulky in the case of disposal or the like.

[0009]

1 to 4 show a synthetic resin container according to an embodiment of the present invention. This container is a liquid container for filling various chemicals, fossil fuels and the like. This liquid container is formed by mixing and melting a low-density polyethylene chip and a high-density polyethylene chip at a predetermined ratio using a material.

Here, the low-density polyethylene is used in an amount of 100 to 50.
% By weight and high density polyethylene within a range of 0 to 50% by weight. Increasing the weight ratio of low-density polyethylene makes the container more flexible, while increasing the weight ratio of high-density polyethylene makes the container more rigid.

Such a container is provided with a cylindrical spouting port 15 at its upper part. A male screw 16 is formed on the outer peripheral side of the mouth portion 15, and the cap can be screwed by the male screw 16. Such a container is provided with a handle 17 on the upper side thereof.
It can be carried by hand.

A characteristic of such a synthetic resin container is a lateral rib 21 formed so as to extend from the front and back to the side, particularly at the body. The vertical ribs 23 are provided on the side surfaces so as to cross between the ends of the horizontal ribs 21.
Are formed. The upper and lower portions of the vertical ribs 23 are branched portions 24 branched in a Y-shape.

By these ribs 21, 23, 24,
When the liquid is filled through the mouth 15, a predetermined shape is maintained, and thereby, it is possible to provide a required rigidity to the container. In particular, by the vertical rib 23, it is folded and flattened when not in use,
It is possible to reduce the volume. In the present embodiment, the horizontal ribs 21 and the vertical ribs 23 are both ribs that protrude inward, but may be composed of ribs that protrude outward.

According to this embodiment, by attaching the ribs 21 and 23 projecting inward or outward, the container itself is made of a flexible synthetic resin material and is made thin, thereby reducing the weight of the container itself. I try to lower it. In particular, it can be folded along the vertical ribs 23 as shown in FIG.

The folding as described above contributes to the reduction of garbage at the time of disposal, and enables disposal as general waste at the time of disposal. Also, by reducing the wall thickness, the amount of raw materials used is reduced, and the cost of the synthetic resin container can be reduced. Furthermore, since it can be stored flat, there is an advantage that the storage space is reduced.

[0016]

According to one aspect of the present invention, there is provided a synthetic resin container in which low-density polyethylene and high-density polyethylene are mixed and molded, wherein the mixing ratio of low-density polyethylene and high-density polyethylene is adjusted. The degree of flexibility or rigidity is adjusted by the method.

Therefore, according to such a synthetic resin container, it is possible to exhibit a desired flexibility or a desired rigidity by adjusting the mixing ratio of the low-density polyethylene and the high-density polyethylene.

According to another aspect of the present invention, a rib is formed in a body portion, and when the contents are filled, the rib imparts a required rigidity to the container, and when the container is not used, the rib is folded and flattened. The present invention relates to a synthetic resin container as described above.

Therefore, according to such a container, the required rigidity is imparted by the ribs, so that the thickness can be reduced, so that the amount of raw materials used is reduced and the container made of synthetic resin is used. Cost can be reduced. In addition, the ribs can be folded and flattened, which contributes to reducing the volume of waste when discarded.

Still another invention of the present application is a synthetic resin container made of a mixed material of low-density polyethylene and high-density polyethylene, which has flexibility and is formed into a predetermined shape. On the back side, horizontal ribs are formed on the upper and lower portions, respectively. On the other hand, on both side surfaces, a rib extending in the vertical direction is formed substantially at the center in the width direction, and the horizontal side ribs are formed. At the height corresponding to the vertical ribs, the ends of the vertical ribs are diagonally branched to both sides, and when the contents are filled, the vertical ribs and the horizontal ribs are rigidly attached to the container. It is made to have.

Therefore, rigidity can be imparted to the container by such ribs, and the thickness of the container can be reduced and its weight can be reduced. In addition, it is possible to fold at the ribs, thereby achieving volume reduction at the time of disposal.

[Brief description of the drawings]

FIG. 1 is an external perspective view of a synthetic resin container.

FIG. 2 is a front view of a synthetic resin container.

FIG. 3 is a side view of a synthetic resin container.

FIG. 4 is a plan view of a synthetic resin container.

FIG. 5 is a perspective view of a folded synthetic resin container.

[Description of Signs] 15 Injection port 16 Male screw 17 Handle 21 Horizontal rib 23 Vertical rib 24 Branch rib

Claims (6)

[Claims] 1. A container made of synthetic resin in which low-density polyethylene and high-density polyethylene are mixed and molded, wherein flexibility or rigidity is adjusted by adjusting a mixing ratio of low-density polyethylene and high-density polyethylene. A synthetic resin container characterized by being adjusted. 2. The low-density polyethylene is 100 to 50% by weight.
The synthetic resin container according to claim 1, wherein the mixing ratio of the low-density polyethylene and the high-density polyethylene is adjusted within a range of 0 to 50% by weight of the high-density polyethylene. 3. A rib is formed in a body part, said rib imparts required rigidity to a container when contents are filled, and is folded by said rib when not in use to flatten the container. A synthetic resin container characterized by the above-mentioned. 4. The synthetic resin container according to claim 3, wherein the rib is formed so as to protrude inside or outside the container. 5. A synthetic resin container made of a mixed material of low-density polyethylene and high-density polyethylene, which has flexibility and is formed into a predetermined shape, wherein a front and a back facing each other have an upper part. And a lower portion formed with horizontal ribs. On the other hand, on both side surfaces, a vertically extending rib is formed at a substantially central portion in the width direction, and a rib corresponding to the horizontal rib is formed. At the height, the ends of the vertical ribs are diagonally branched to both sides, and when the contents are filled, the vertical ribs and the horizontal ribs give the container rigidity. Synthetic resin container. 6. The longitudinal ribs fold the sides substantially at the center in the width direction so that the front and the back overlap, and then the upper and lower ribs define the upper and lower parts. The synthetic resin container according to claim 5, wherein the container is folded so as to overlap the front or rear surface.