JP2584435Y2 - Polyethylene terephthalate container - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a container made of polyethylene terephthalate for storing soy sauce, sauces, juices and other liquid products.

[0002]

2. Description of the Related Art There has been a demand for prevention of waste pollution caused by a large amount of waste. In this garbage pollution, synthetic resin products are not decomposed by bacteria in soil, etc.
Incineration is not preferred because it retains its original shape almost semi-permanently and emits high temperature even if it is burned, shortening the life of the combustion furnace. Such a situation is the same in a container such as a bottle of a type made of synthetic resin and having an inner stopper. Therefore, the container and the like are collected after use and recycled as resources.
It is desirable not to dispose as garbage.

[0003]

However, the synthetic resin container of the type having the above inner plug has the following problems. Although it is already widely known, it is not shown in the drawings.However, the inner plug has an endless groove formed on an opening wall for cutting off the flow of liquid or the like. The through-hole is formed by tearing from the groove by the tearing member.

[0004] For this reason, the inner plug is made of a synthetic resin of a material which is easily torn, for example, polyethylene. However, since the container to which the inner stopper is attached is handled by accommodating, transporting, displaying, delivering, etc. various kinds of liquid products, a synthetic resin which is hard to be damaged and has high strength is desired, and is generally formed of polyethylene terephthalate resin. . Then, at home or the like, a container of the above type is discarded after use, with the inner plug attached to the container. Then, when collecting and regenerating the waste container, the container and the inner plug are made of different materials, so the inner plug and the container must be separated. In general, although the illustration of the inner plug is omitted, a protruding portion formed on the inner plug is engaged with the concave engaging portion formed on the container by pressing and pressing, and it is necessary to apply force to separate the two. It is troublesome. In addition, even in the case of a screw-type inner plug, if the amount is large, the screwing is troublesome. This invention was made to solve such a problem, and its purpose was to collect containers.
Can eliminate the troublesome work of decapping,
It can save time and waste of resources due to plug removal.
When plugging into a container
There is no danger of pinholes or cracks in the
And it is relatively easy for consumers and others to form openings
Can be formed in the container, and the contents in the container display are less oxidized.
An object of the present invention is to provide a container made of polyethylene terephthalate, which is capable of recovering the container more than ever before when collecting the container .

[0005]

The polyethylene terephthalate container of the present invention, which achieves the above object, is described in the following. Attach or provide the terephthalate inner stopper 3, and in the opening 18 of the polyethylene terephthalate inner stopper 3,
A locking portion 15 that locks vertically with the mouth wall 4 is provided.
The engaging portion 16 and the separating member 5 made of synthetic resin are
The engaging portion 16 to the locking portion 15
Provided in engagement with each other, and the engaged portion is a synthetic resin.
Is welded, and is engaged and welded.
Moiety that is, by pulling the separation member
The splitting of the welded part and the disengagement of the engagement part at one time
A container made of polyethylene terephthalate, characterized in that the container is formed to have the required strength .

[0006]

The present invention is constructed as described above,
In the mouth 2 of the container 1 made of terephthalate, polyethylene
By installing or providing the terephthalate inner stopper 3,
In the case of collection of container, we put polyethylene terephthalate inner stopper 3
The troublesome sorting work to be removed can be omitted. Also of the container
The inner plug can be collected together for recovery, greatly increasing the amount of material to be recovered.
Can be quantified. Moreover, the same polyethylene terephthalate
Vertical locking portion formed at opening 18 of rate plug 3
15. Engagement of the mouth wall 4 having a separating member 5 made of synthetic resin
The engaging portion 16 is engaged, and the engaging portion of the engaging portion is made of synthetic resin.
Up and down engagement
The mechanical strength in the vertical direction and the melting of the synthetic resin
The strength of integration by wearing complements each other, and also outside
The opening 18 which forms the rigid body is made of polyethylene terephthalate.
This triple factor causes the container to
Pinholes, cracks, etc. may occur due to the impact of plugging
Thus, there is no possibility that the seal is damaged. Only
Also, if a consumer or the like pulls the separation member 5 upward.
In the case of welding of the engaging portion, welding is generally performed by welding two layers.
Pull each layer apart by pulling
Separating means tearing a sheet of the same resin component.
It's easy. Further, the engaging portion has the locking portion 15.
High rigidity and deformation due to polyethylene terephthalate
Dispersion due to deformation of the pulling force
And immediately breaks off immediately after the power reaches
I can . Inner plug 3 is made of polyethylene terephthalate.
As a result, polyethylene terephthalate is
Gas permeability is generally lower than polyethylene
And low permeation of oxygen in the air.
The degradation due to oxidation can be less Ri by conventional.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIG. 1, reference numeral 1 denotes a container made of polyethylene terephthalate. Reference numeral 2 denotes a mouth of the container 1. The mouth 2 is provided with a polyethylene terephthalate inner plug 3. In this case, the polyethylene terephthalate inner plug 3 is welded to the mouth 2 of the container 1 using high frequency or ultrasonic waves.

In the present invention, the polyethylene terephthalate inner plug 3 may be attached or provided on the mouth 2 by welding as shown in FIG. It may be welded using a molding machine, or may be integrally formed from the beginning when forming the polyethylene terephthalate container 1 as shown in FIG. 2, or may be engaged and mounted as shown in FIG. Well,
Although illustration is omitted, screwing and mounting may be performed, and all of these cases are included. In FIG. 3, reference numeral 7 denotes a fixing portion. The fixing portion 7 may be formed in a flange shape.

Next, in FIG. 1, reference numeral 4 denotes a synthetic resin mouth wall for blocking the passage of the contents of the container 1, and is engaged with an engaging portion 15 inside the polyethylene terephthalate inner plug 3 by an engaging portion 16. are canceller of wearing soluble with are engaged, may be performed by the welding or dichroic molding machine. 5 is a pull-ring type separation member as an example,
To the port wall 4 is provided integrally, if the consumer or the like is used, taking tore mouth wall 4 minutes the solvent adhesion portion by pulling the separation member 5, separated by opening the opening 18. Although not shown, the strength of the welded portion is formed to be smaller than that of the conventional type in which the split groove is torn.
Because they are, Ru can than inner plug of the type as possible rip conventional fissure obtain easily opening can inner plug. Also not permissible even of the same resin be synthetic resins material which the opening wall 4 is different from the polyethylene terephthalate during plug 3.

1 to 3, reference numeral 11 denotes an outer lid. Reference numeral 12 denotes a threaded portion, 13 denotes a injection cylinder, and 14 denotes a sealed portion. The outer lid 11 is preferably made of the same type of synthetic resin as the polyethylene terephthalate container 1, but may be different. 1 and 3, reference numeral 15 denotes a projection-shaped engaging portion, and reference numeral 16 denotes a concave-shaped engaging portion.

[0011]

[Effect of the Invention] The invention is constructed as described above,
At the mouth 2 of the container 1 made of ethylene terephthalate,
By installing or providing the inner plug 3 of styrene terephthalate
When collecting containers, use polyethylene terephthalate.
The troublesome sorting work of removing the stopper 3 can be omitted. or
Since the inner stopper can be collected together with the container, the collected material can be
Can be increased in width. Moreover, the polyethylene
The vertical direction formed in the opening 18 of the phthalate inner plug 3
The mouth wall 4 having a separating member 5 made of a synthetic resin
And the engaging portion of the engaging portion
Up and down direction by welding by melting of synthetic resin
The strength of mechanical fixing in the vertical direction by the engagement of
The strength of integration by welding of fats complements each other, and
The opening 18 forming the outside is made of polyethylene terephthalate.
The rigidity is high and the impact is strong,
Pinholes, cracks, etc. against impact when plugging containers
Can completely eliminate the risk of sealing
You. In addition, a consumer or the like pulls the separating member 5 upward.
In the case of stretching, welding of the engaging portion is generally performed by two weldings.
Since the layers are welded, each layer is separated by pulling
To tear apart a sheet of the same resin component
It's easier than doing that. And the engaging portion is the locking
High rigidity because part 15 is made of polyethylene terephthalate
And is difficult to deform.
Negligible, so the power is directly attained, and immediately tears
You can cut it . The inner stopper 3 is made of polyethylene terephthalate.
The polyethylene terephthalate
The plate is generally gas permeable compared to conventional polyethylene
Low permeation of oxygen in the air
It is less Ri by conventional degradation due to oxidation of the vessel contents goods
Wear.

[Brief description of the drawings]

FIG. 1 is a sectional view of a part of a container made of polyethylene terephthalate, showing an embodiment of the present invention.

FIG. 2 is a sectional view of a part of the container according to a second embodiment of the present invention.

FIG. 3 is a cross-sectional view of a portion of the container according to a third embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Polyethylene terephthalate container 2 Portion 3 Polyethylene terephthalate inner plug 4 Port wall 5 Separation member 13 Injection cylinder 15 Locking part 16 Engaging part 18 Opening

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B65D 39/00-55/16

Claims (1)

(57) [Scope of request for utility model registration] 1. A polyethylene terephthalate inner plug 3 having an opening 18 formed in advance inside a injection tube 13 is attached to or provided in a mouth portion 2 of a polyethylene terephthalate container 1. ,
A locking portion 15 that locks vertically with the mouth wall 4 is provided.
The engaging portion 16 and the separating member 5 made of synthetic resin are
The engaging portion 16 to the locking portion 15
Provided in engagement with each other, and the engaged portion is a synthetic resin.
Is welded, and is engaged and welded.
Moiety that is, by pulling the separation member
The splitting of the welded part and the disengagement of the engagement part at one time
A container made of polyethylene terephthalate, characterized in that the container is formed to have the required strength .