JP2022538951A - End ring simultaneous separation type PET container lid - Google Patents

Abstract

The present invention relates to an end ring simultaneous separation type PET container lid, and more particularly, when a lid body (lid) coupled to an injection part of a PET container is separated, the end ring on the lower side of the lid body is also joined together. It relates to an end ring simultaneous separation type PET container lid that can be separated into two. According to the present invention, there is provided a lid for a PET container that provides a sealing function for preserving the contents and a sealing function for grasping whether or not the contents have been opened while being connected to the filling port, wherein the lid is a sealing function for preserving the contents. A lid body coupled to the filling port is integrally formed with the bottom side of the lid body and restrained by an annular projection provided on the bottom side of the outer circumference of the filling port to seal whether or not the lid body is unsealed. and an end ring that exhibits a function and is simultaneously separated from the injection port together with the lid body by deforming its shape when the lid body is separated by a user. [Selection drawing] Fig. 1

Description

The present invention relates to an end ring simultaneous separation type PET container lid, and more particularly, when a lid body (lid) coupled to an injection part of a PET container is separated, the end ring on the lower side of the lid body is also joined together. It relates to an end ring simultaneous separation type PET container lid that can be separated into two.

PET (polyethylene terephthalate; PET) containers in current use are among the lightest, clearest, and most recyclable, and have gained great popularity as containers for food and beverages.

Since such PET containers were invented, they were immediately exploited in the industry due to the booming carbonated beverage industry and material advantages. By 1999, 100 billion bottles were being produced annually for this container. Initially, it was mostly used as a container for liquids such as drinks and sauces, but recently it is used not only for alcoholic beverages such as beer and shochu, but also for various packaging materials such as eye drops and detergents. It has become an indispensable part of people's living environment.

On the other hand, the pouring part (spout) of the PET container is provided with a sealing stopper for preserving the contents (food, beverage, etc.) and a lid (cap) that provides a sealing function to check whether or not the container has been opened.
Specifically, since a typical PET container has a container body into which the contents are placed and a lid coupled to the injection part of the container body, the outer circumference of the injection part of the container body is provided for fastening the lid. A helical binding projection and an annular projection for preventing separation of the lid are provided.

The lid is composed of a lid body for sealing and sealing the pouring portion of the container body, and an end ring for sealing the lid body. The inner periphery of the end ring is provided with a number of interfering protrusions that engage with the annular protrusion on the outer periphery of the injection section.

Therefore, even if the lid is rotated counterclockwise and separated from the injection part of the pet container, the interference projection on the inner circumference of the end ring is locked by the annular projection on the outer circumference of the injection part. By maintaining the condition, the end ring remains intact in the pet container after all.

However, the PET container and the lid are made of different materials, that is, PET and PE (high density polyethylene; HDPE). It is preferable that the end ring attached to the lid is separated and collected as a single material as much as possible.

For this reason, a cutting tool such as scissors or a nipper is used to separate the end ring from the pet container. In most cases, it is collected by sintering, and as a result, it is difficult to separate and collect it. Therefore, there is a problem that it is discarded as general waste and becomes a major culprit of environmental pollution as well as waste of resources.

In order to solve such problems, Korean Patent Publication No. 10-2012-0101626 discloses an end ring removing structure for a resin bottle lid and a container having the same. The end ring removing structure of the bottle lid and the container equipped with the same are provided by cutting a part of the ring stopper upper flange (annular projection) that restricts the end ring to the pouring part in a slope shape to form a guiding flange cut part ( By forming an incision portion), when the end ring is rotated, a plurality of projecting flaps (interference projections) provided on the inner periphery of the end ring are removed from the guide flange cut portion. This allows the end ring to be easily removed from the injection section.

However, in order to achieve the aforementioned end ring removing structure, the guiding flange cut portion must be formed, so the injection portion of the PET container must be manufactured in a different shape than before. There is a problem of lack of compatibility, which makes it somewhat unreasonable for practical application.

Consequently, there is a need for research and development of a PET container lid that can be separated (removed) together with the end ring in the process of separating the PET container lid from the PET container without deforming the shape of the PET container.

Korean Patent Publication No. 10-2012-0101626

The present invention is intended to solve such problems, and its object is to prevent deformation of the end ring on the lower side of the lid body during the process of separating the lid body (lid) from the injection part of the PET container. When the lid body is separated, the restraining force of the end ring (interference projection provided on the inner circumference) by the annular projection provided on the outer circumference of the injection part is lost. To provide an end ring simultaneous separation type PET container lid capable of separating (removing) the end ring together.

To achieve the above objects, the present invention provides a lid for a PET container which provides a sealing function for grasping whether or not it has been opened together with a sealing plug for preserving contents in a state where the lid is connected to an injection port. , a lid body coupled to the filling port for hermetic sealing for preserving the contents, and an annular projection integrally formed on the lower side of the lid body and provided on the bottom side of the outer circumference of the filling port; an end ring that exhibits a sealing function for grasping whether or not the lid body has been opened, and at the same time, undergoes shape deformation during the separation process of the lid body by a user, and is simultaneously separated from the injection port together with the lid body. characterized by

In addition, the lid body is provided with spiral protrusions on the inner periphery corresponding to the spiral fastening protrusions provided on the outer periphery of the inlet, so that it slides when the user grips it and rotates it clockwise/counterclockwise. A knurling portion is further provided on the outer periphery to prevent the sagging.

Further, the end ring is provided with interference projections on the inner periphery thereof, which are engaged with restraining projections of the injection port when the lid body is coupled to the injection port, and are integrated with a part of the lower end of the lid body. , which is integrally connected to a connecting protrusion that induces shape deformation during the separation process of the lid body, and another part of the lower end of the lid body, and is broken during the separation process of the lid body. A sealing projection is provided to enable grasping of whether or not the lid body has been opened.

In addition, the end ring is cut long from the top end to the bottom end, and is formed to be inclined in one direction. A large number of ring-shaped incisions are formed at regular intervals to reduce storage capacity due to the action of widening the gap due to the connection protrusions that maintain the connection state.

In addition, the connecting protrusion protrudes from an upper end of the incision to extend a certain range starting from one end of the incision in order to be connected to the lid body and induce widening of the gap of the incision when the lid body is separated. The sealing protrusion is connected to the lower end of the lid body in a long shape to be held, and the sealing protrusion is connected to the lid body and is broken during the separation process of the lid body to determine whether or not the lid body is unsealed. is protruded from the upper end and connected to the lower end of the lid body in a short form to have a predetermined range from the other end of the incision in order to demonstrate the sealing function.

In addition, in the separation process of the lid body, the cut portion has a restraining force of the connecting projection by the restraining projection on the outer periphery of the injection portion due to the widening of the gap due to the rise of the connecting projection connected to the lid body. A long incision is made starting from the top end to a point close to the bottom end to form a slope with a slope in one direction, in order to induce a shape deformation that causes the loss of .

」状をなす切開部の形成によって、前記注入部からの前記蓋本体の分離過程の際に前記干渉突起が前記環状突起を乗り越えることができるように外側に広がる形状変形を起こす多数の変形部が設けられ、前記変形部の上端には、前記蓋本体の下端と一体につながるように突出する一方、前記蓋本体の分離過程の際に破断され、その破断状態による前記蓋本体の開封有無把握を可能にする封印突部が設けられることを特徴とする。 According to another embodiment of the present invention, there is provided a lid for a PET container which provides a seal function for preserving contents and a sealing function for grasping whether or not the container has been opened while being connected to an injection part, wherein the lid serves as a seal for preserving the contents. a lid body coupled to the injection part for the purpose; integrally formed on the lower side of the lid body and restrained by an annular projection projecting from the lower side of the outer periphery of the injection part to open the lid body an end ring that exhibits a presence/absence grasping seal and is separated from the injection part together with the lid body by undergoing shape deformation during the separation process of the lid body by a user, wherein the end ring is the lid body. is coupled to the injection part, it includes an interference projection bound by the annular projection, while extending horizontally and vertically from the boundary portion of the lid body, "

Due to the formation of the incisions having the shape of "", a large number of deformed portions are formed which undergo shape deformation that spreads outward so that the interference protrusion can overcome the annular protrusion during the separation process of the lid body from the injection portion. The upper end of the deformation portion protrudes so as to be integrally connected to the lower end of the lid body, and is broken during the separation process of the lid body, so that whether or not the lid body is opened can be grasped by the broken state. It is characterized in that it is provided with a sealing ledge that enables it.

Further, the interference projection projects from the inner surface of the deformable portion so as to be constrained by the annular projection, and has an inclination with a projecting tip facing upward. It is bent downward by the projection, and while inducing shape deformation of the deformation portion due to the downward bending, it is possible to get over the annular projection during the shape deformation of the deformation portion.

Further, the interference protrusion is in the form of a simple protrusion that induces shape deformation of the deformable portion in the process of separating the lid body from the injection portion, and that can overcome the annular protrusion during the shape deformation. .

According to another embodiment of the present invention, there is provided a lid for a PET container which provides a seal function for preserving contents and a sealing function for grasping whether or not the contents have been opened while being connected to an injection part, wherein the lid is used for preserving the contents. a lid body coupled to the injection part for hermetic plugging; integrally formed on the lower side of the lid body and constrained by an annular projection projecting from the lower side of the outer periphery of the injection part; an end ring that exhibits a sealing function for grasping whether or not it has been opened, and that is deformed in shape during the process of separating the lid body by a user, and is separated from the injection part together with the lid body; The ring has a structure separated from each other by an incision, and on the inner periphery of the boundary between the lid body and the end ring, the lid body and the end ring are connected, and the lid body is coupled to the injection part. When the lid body is separated from the pet container, it is restrained by the annular projection when it is pressed, but there are a number of interference projections that undergo shape deformation so that they can get over the annular projection during the separation process of the lid body from the pet container. Each of them is protruded on the other side, and connects the lower end of the lid body and the upper end of the end ring, and is broken during the separation process of the lid body, so that it is possible to grasp whether the lid body is opened or not according to the broken state. It is characterized in that a sealing protrusion is provided for sealing.

Both ends of the interference protrusion are integrally connected to the lower end portion of the lid body and the upper end portion of the end ring, and are bent to one side so as to be constrained by the annular protrusion. On the other hand, in the process of separating the lid body from the injection part, the annular protrusion unfolds and separates the lid body and the end ring, and the separation causes the sealing projection to break and the end ring to break. Interference avoidance of the annular protrusion is enabled so that simultaneous separation can be achieved.

As clearly understood from the above description, the end-ring simultaneous separation type PET container lid of the present invention is capable of separating not only the lid body but also the lid in the process of separating the lid body (lid) from the pouring part of the PET container. Since the lower end ring can be separated at the same time, the PET container can be recovered as a single material for satisfying recyclability (recycling).

In particular, as described above, in the process of rotating the lid body counterclockwise to separate it from the injection part of the PET container, the shape deformation of the end ring (decreased ring-shaped storage capacity) is induced, and the injection By enabling the interfering projections provided on the inner periphery of the end ring to be disengaged from the annular projections provided on the outer periphery of the end ring, the end ring can be more simply and easily separated from the injection part. shows the effect of

In addition, by exerting the above-mentioned effects, it not only satisfies user needs for end ring separation, but also serves as a guideline for competitive product development, providing basic materials for improving the quality of life. On the other hand, it is a very useful invention that can greatly contribute to the establishment of policies and recovery techniques for the waste resource recycling industry that recovers and recycles resources from discarded waste resources.

1A and 1B are a perspective view and a cross-sectional view showing the structural relationship of an end ring simultaneous separable pet container lid according to a first embodiment of the present invention; 1A and 1B are a perspective view and a cross-sectional view showing the structural relationship of an end ring simultaneous separable pet container lid according to a first embodiment of the present invention; 1A and 1B are a perspective view and a cross-sectional view showing the structural relationship of an end ring simultaneous separable pet container lid according to a first embodiment of the present invention; FIG. 2 is a perspective view of a main part showing the structural relationship of the end rings in the end ring simultaneous separable pet container lid according to the first embodiment of the present invention; FIG. 3 is a cross-sectional view showing the usage of the end ring simultaneous separation type pet container lid according to the first embodiment of the present invention. FIG. 8 is a perspective view and a cross-sectional view showing the structural relationship of the end ring simultaneous separable pet container lid according to the second embodiment of the present invention. FIG. 8 is a perspective view and a cross-sectional view showing the structural relationship of the end ring simultaneous separable pet container lid according to the second embodiment of the present invention. FIG. 8 is a perspective view and a cross-sectional view showing the structural relationship of the end ring simultaneous separable pet container lid according to the second embodiment of the present invention. FIG. 10 is a perspective view of a main part showing the structural relationship of end rings in the end ring simultaneous separable pet container lid according to the second embodiment of the present invention; FIG. 10 is a cross-sectional view showing the usage relationship of the end ring simultaneous separation type pet container lid according to the second embodiment of the present invention. FIG. 10 is a diagram showing another configuration relationship of the interference protrusions in the end ring simultaneous separable pet container lid according to the second embodiment of the present invention; FIG. 10 is a diagram showing the structural relationship of the end ring simultaneous separation type PET container lid according to the third embodiment of the present invention; FIG. 4 is an operating state diagram showing the operating relationship of the end ring simultaneous separation type pet container lid according to the first embodiment of the present invention; FIG. 4 is an operating state diagram showing the operating relationship of the end ring simultaneous separation type pet container lid according to the first embodiment of the present invention; FIG. 4 is an operating state diagram showing the operating relationship of the end ring simultaneous separation type pet container lid according to the first embodiment of the present invention; FIG. 10 is a cross-sectional view illustrating the operation of the end ring deformation relation when the end ring simultaneous separable pet container lid according to the first embodiment of the present invention is separated. FIG. 10 is a cross-sectional view illustrating the operation of the end ring deformation relation when the end ring simultaneous separable pet container lid according to the first embodiment of the present invention is separated. FIG. 11 is a cross-sectional view of an operating state showing the operational relationship of the end ring simultaneous separable pet container lid according to the second embodiment of the present invention; FIG. 11 is a cross-sectional view of an operating state showing the operational relationship of the end ring simultaneous separable pet container lid according to the second embodiment of the present invention; FIG. 11 is a cross-sectional view of an operating state showing the operational relationship of the end ring simultaneous separable pet container lid according to the second embodiment of the present invention; FIG. 11 is a cross-sectional view of the operational state showing the operational relationship of the end ring simultaneous separable pet container lid of the present invention according to the third embodiment of the present invention; FIG. 11 is a cross-sectional view of the operational state showing the operational relationship of the end ring simultaneous separable pet container lid of the present invention according to the third embodiment of the present invention; FIG. 11 is a cross-sectional view of the operational state showing the operational relationship of the end ring simultaneous separable pet container lid of the present invention according to the third embodiment of the present invention; FIG. 11 is a cross-sectional view of the operational state showing the operational relationship of the end ring simultaneous separable pet container lid of the present invention according to the third embodiment of the present invention;

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily implement the present invention.

First, it should be noted that, in assigning reference numerals to elements of the drawings, as much as possible the same reference numerals are used for the same elements, even if they appear on different drawings. be. In addition, in describing the present invention, if it is determined that a detailed description of a known configuration or function related to the present invention may obscure the gist of the present invention, the detailed description will be omitted.

Among the accompanying drawings, FIGS. 1 to 3 are a perspective view and a cross-sectional view showing the structural relationship of the end ring simultaneous separation type PET container lid according to the first embodiment of the present invention, and FIG. 4 is the first embodiment of the present invention. FIG. 5 is a perspective view showing the configuration of the end rings in the simultaneous end-ring separable pet container lid, and FIG. It is a diagram.

As shown in FIGS. 1 to 3, an end-ring simultaneous separable PET container lid A according to the first embodiment of the present invention includes a lid body 1 coupled to an injection part of a PET container for storing contents. , which is integrally formed on the lower side of the lid body 1 and is restrained by an annular projection provided on the lower side of the outer periphery of the injection part, and exhibits a sealing function for grasping whether or not the lid body 1 has been opened. An end ring 2 which is deformed in the process of separating the main body 1 and is simultaneously separated from the injection part of the PET container together with the lid main body 1 .

The lid body 1 is coupled to the injection part of the PET container for the purpose of preventing the outflow of the contents (food, beverage, etc.) contained in the PET container. A binding projection 11 corresponding to the spiral binding projection on the outer circumference of the injection part is provided on the inner circumference.

In addition, it is preferable that a knurling part 12 is further provided on the outer circumference of the lid body 1 to prevent slippage when the user grips and rotates it clockwise/counterclockwise.

The end ring 2 functions to seal the lid body 1 coupled to the injection part of the PET container. As shown in FIGS. 4 and 5, the lid body 1 is coupled to the injection part 910 of the PET container 900. Interference protrusions 21 are provided on the inner circumference that are engaged with annular protrusions 920 on the outer circumference of the injection part 910 when the injection section 910 is injected.

In addition, a connection protrusion 22 that is integrally connected to a portion of the lower end of the lid body 1 and induces shape deformation during the separation process of the lid body 1 and another portion of the lower end of the lid body 1 is integrated. A sealing projection 23 is provided which is connected and fractured during the separation process of the lid body 1, thereby enabling grasping of whether the lid body 1 is open or not.

In addition, it is cut long from the uppermost end to the lowermost end and is formed to be slanted in one direction. A large number of ring-shaped incisions 24 are provided at regular intervals to reduce the storage capacity due to the widening effect of the connecting protrusions 22 that maintain the state.

The connecting protrusion 22 is connected to the lid body 1 and induces the widening of the gap of the incision 24 when the lid body 1 is separated. It is connected to the lower end of the lid body 1 in a state of being elongated so as to be held.

The sealing protrusion 23 is connected to the lid body 1 and is broken during the process of separating the lid body 1, thereby performing a sealing function that allows the user to know whether or not the lid body 1 has been opened. , protrudes from the upper end and is connected to the lower end of the lid body 1 in a short state with a predetermined range from the other end of the cutout 24 .

The incision portion 24 is formed by the annular projection 920 on the outer periphery of the injection portion 910, and the connecting protrusion 920 is formed by the annular projection 920 on the outer circumference of the injection portion 910, as the gap widens due to the rise of the connecting protrusion 22 connected to the lid body 1 during the separation process of the lid body 1. Since it induces shape deformation (decrease in ring-shaped storage capacity) that makes it possible to lose the binding force of 22, it has a long incision starting from the top end to the position close to the bottom end, and has a slope with a slope in one direction. A slope type is preferred.

On the other hand, FIGS. 6 to 8 are perspective views and cross-sectional views showing the structural relationship of the end ring simultaneous separable pet container lid according to the second embodiment of the present invention, and FIG. 9 is the end ring according to the second embodiment of the present invention. FIG. 10 is a perspective view of essential parts showing the structural relationship of the end rings in the simultaneously separable pet container lid, and FIG. 10 is a cross-sectional view showing the usage relationship of the end ring simultaneously separable pet container lid according to the second embodiment of the present invention. . As shown in FIGS. 6 to 8, the end-ring simultaneous separable PET container lid A-1 according to the second embodiment of the present invention is combined with the injection part 910 of the PET container 900 for preserving the contents. The lid body 1 is integrally formed with the lid body 1 and the lower side of the lid body 1, and is constrained by an annular projection 920 protruding downward from the outer periphery of the injection part 910. , an end ring 2 that is deformed in the process of separating the lid body 1 by the user and is separated from the injection part 910 of the PET container 900 together with the lid body 1 .

The lid body 1 is for preventing the contents of the PET container 900 from leaking out while being connected to the injection part 910 of the PET container 900 . A binding projection 11 corresponding to the binding projection 930 protruding spirally is provided on the inner periphery.

In addition, as shown in FIG. 8 and the above description, the outer circumference of the lid body 1 is provided with the binding projection 11 on the inner circumference, and the knurling portion 12 is provided on the outer circumference. is preferred.

The end ring 2 is for realizing the sealing function of the lid body 1 coupled to the injection part 910 of the PET container 900. As shown in FIGS. , includes an interference projection 21-1 restrained by the annular projection 920 protruding from the outer periphery of the injection part 910, while following the shape of the incision 241, the lid body 1 from the pet container 900 is removed. A number of deforming portions 25 are provided to cause outwardly widening shape deformation so that the interference protrusion 21-1 can climb over the annular protrusion 920 during the separation process.

In addition, the upper end of the deformation portion 25 protrudes so as to be integrally connected to the lower end of the lid body 1, and is broken during the separation process of the lid body 1. Whether or not the lid body 1 is opened depends on the broken state. A sealing protrusion 23-1 is provided to allow grasping.

The interference protrusion 21-1 protrudes from the inner surface of the deformable portion 25 so that it can be constrained by the annular protrusion 920 protruding from the outer circumference of the injection portion 910 of the pet container 900, and the tip of the protrusion is inclined upward. Therefore, in the process of separating the lid body 1 from the injection part 910, it is bent downward by the annular projection 920, thereby inducing the shape deformation of the deformation part 25, while the shape deformation of the deformation part 25 It is possible to get over the annular protrusion 920 at this time.

」状をなすことが好ましい。 As shown in FIG. 8, the cutout 24-1 extends horizontally and vertically from the boundary portion (uppermost end in the drawing) of the lid body 1 to

, preferably in the form of .

FIG. 11 is a cross-sectional view showing another structural relationship of the interference projections in the end ring simultaneous separation type pet container lid according to the second embodiment of the present invention. As shown in FIG. 11, the interference projection 21-2 showing another structural relationship in the end ring simultaneous separation type PET container lid according to the second embodiment is deformed as described above during the separation process of the lid body 1. 25 and can be in the form of a simple protrusion capable of surmounting the annular protrusion 920 during the shape deformation.

On the other hand, FIG. 12 is a cross-sectional view showing the structural relationship of the end ring simultaneous separation type PET container lid according to the third embodiment of the present invention. The end-ring simultaneous separable PET container lid A-2 according to the third embodiment of the present invention is coupled to the injection part 910 of the PET container 900 for storing the contents, as shown in FIG. 12 and the above description. and an annular projection 920 integrally formed on the lower side of the lid body 1 and protruding below the outer periphery of the injection part 910, and has a sealing function for grasping whether or not the lid body 1 has been opened. on the other hand, an end ring 2 that undergoes shape deformation during the separation process of the lid body 1 by the user and is separated from the injection part 910 of the pet container 900 together with the lid body 1; The end rings 2 form a mutually separated structure by the cutout 24-2.

As shown in FIG. 12 and the above description, it is preferable that the lid body 1 is provided with the binding projection 11 on the inner periphery and the knurling portion 12 on the outer periphery.

On the inner periphery of the boundary between the lid body 1 and the end ring 2, which are separated from each other by the cutout 24-2, the lid body and the end ring are connected to each other, while the lid body 1 is connected to the PET container. When the injection part 910 of the pet container 900 is connected to the injection part 910 , the injection part 910 is restrained by the annular projection 920 protruding from the outer periphery of the injection part 910 . A large number of interference projections 21-3 that cause shape deformation so as to be able to get over are protruded at regular intervals, and connect the lower end of the lid body 1 and the upper end of the end ring 2, while the lid A sealing projecting portion 23-2 is provided, which is broken during the separation process of the main body 1, and enables grasping whether or not the lid main body 1 is open according to the broken state.

Both ends of the interference projection 21-3 are integrally connected to the lower end portion of the lid body 1 and the upper end portion of the end ring 2, and are restrained by the annular projection 920 protruding from the outer periphery of the injection portion 910 of the pet container 900. When the lid body 1 is separated from the injection part 910 , the annular projection 920 unfolds the lid body 1 and the end ring 2 . are separated from each other, thereby avoiding interference of the annular projection 920 so that the sealing projection 23-2 can be broken and the end ring 2 can be separated at the same time.

The operation of the end ring simultaneous separation type PET container lid A according to the present invention having the above-described configuration will be specifically described. is as follows.

13 to 15 are operational state diagrams showing the operational relationship of the end ring simultaneous separation type PET container lid according to the first embodiment of the present invention, and FIGS. FIG. 10 is a cross-sectional view illustrating an operation showing the deformation relationship of the end ring when the ring simultaneous separation type pet container lid is separated. As shown in FIG. 13, the end ring simultaneous separation type PET container lid A according to the first embodiment of the present invention is inserted into the PET container 900 while being coupled to the injection part 910 of the PET container 900 . It seals and plugs the injection part 910 to preserve the contents (food, beverage, etc.), and provides a sealing function for grasping whether or not it has been opened.

By separating the lid A from the injection part 910 in this state, the contents contained in the PET container 900 can be drunk by the user. By separating the end ring 2 connected to the lower side of the lid body 1 together with the lid body 1, the PET container 900 can be easily removed.

In other words, the lid body 1 coupled to the injection part 910 of the PET container 900 is rotated counterclockwise so that the lid body 1 rises along the injection part 910, and by continuing the process, the PET container By being completely separated from 900, the injection part 910 can be opened, so that the user can drink the food or drink contained in the PET container 900. .

In this process, the end ring 2 integrally formed on the lower side of the lid body 1 is separated (removed) from the injection part 910 together with the lid body 1, thereby forming a PET container made of a single material. It can be recovered as 900, which greatly improves recyclability.

Specifically, in order to open the injection part 910 , when the lid body 1 coupled to the injection part 910 is rotated counterclockwise, the connecting protrusion 11 provided on the inner circumference of the lid body 1 is pulled out. However, by the action of riding on the binding projection 930 provided on the outer periphery of the injection part 910 of the pet container 900, the lid body 1 moves to the upper side of the injection part 910. It is completely separated from the injection part 910 of the container 900 .

At this time, the interfering protrusion 21 on the inner periphery of the end ring 2 is engaged with the annular protrusion 920 on the outer periphery of the injection portion 910 (see FIG. 16), so that as shown in FIG. A phenomenon that the gap between the lid body 1 and the end ring 2 widens is induced. In this process, the sealing protrusion 23 formed at the upper end of the end ring 2 and connected to the lower end of the lid body 1 is broken by tension and is formed at the other upper end of the end ring 2. A portion of the end ring 2 formed with the connecting protrusion 22 is lifted upward with the cutout 24 as a reference by the connecting protrusion 22 connected to the other lower end of the lid body 1 , thereby closing the gap between the cutout 24 . is induced by the effect of shape deformation that spreads. As shown in FIG. 17, the interfering projections 21 on the inner periphery of the end ring 2 may be displaced from the pet container due to the loss of shape preserving ability (decrease in ring-shaped retaining ability) due to such shape deformation of the end ring 2 . After getting over the annular projection 920 on the outer periphery of the injection part 910 of 900, the end ring 2 is completely removed from the injection part 910 as shown in FIG. It is possible for the ring 2 to be separated from the pet container 900 at the same time.

As a result, the lid body 1 and the end ring 2 attached to the lid body 1 can be separated at the same time in order to recover the PET container 900 separated as a single material and maximize recyclability. (see FIG. 15).

18 to 20 are cross-sectional views showing the operational relationship of the end ring simultaneous separation type pet container lid according to the second embodiment of the present invention. Next, the operation of the end ring simultaneous separation type lid A-1 according to the second embodiment of the present invention will be described.

As shown in FIGS. 18 to 20, the end ring simultaneous separation type PET container lid A-1 according to the second embodiment of the present invention is connected to the injection part 910 of the PET container 900 (see FIG. 10). , the filling part 910 is sealed and capped in order to preserve the contents (food, beverage, etc.) inside the PET container 900, and a sealing function is provided to detect whether or not the container has been opened.
In this state, by separating the lid A-1 from the injection part 910, the user can drink the contents contained in the PET container 900. In the separation process, the end ring 2 connected to the lower side of the lid body 1 is separated together with the lid body 1, so that the PET container 900 can be easily removed.

In other words, the lid body 1 coupled to the injection part 910 of the PET container 900 is rotated counterclockwise so that the lid body 1 rises along the injection part 910, and the process (rotation) continues. By completely separating from the PET container 900 by , the opening of the injection part 910 can be realized, so that the user can drink the food or drink contained in the PET container 900 become.

In this process, the end ring 2 integrally formed on the lower side of the lid body 1 is separated (removed) from the injection part 910 together with the lid body 1, thereby forming a PET made of a single material. It can be collected as the container 900, which greatly improves the recyclability.

Specifically, when the lid body 1 coupled to the injection part 910 is rotated counterclockwise in order to open the injection part 910, the binding protrusion 11 provided on the inner circumference of the lid body , the lid body 1 is moved above the injection part 910 by riding on the connecting projection 930 provided on the outer periphery of the injection part 910 of the PET container 900, and by continuing the process, the PET can be It is completely separated from the injection part 910 of the container 900 .

That is, as shown in FIG. 18, the protruding tip of the interfering protrusion 21-1 of the end ring 2, which is restrained by the annular protrusion 920 protruding from the outer circumference of the injection portion 910, is replaced by the annular protrusion 920. As shown in FIG. 19, as shown in FIG. 19, the deformed portion 25 expands outward due to the process of bending the protruding tip of the interference projection 21-1 downward. Due to the loss of capacity (decrease in ring-shaped storage capacity), the sealing projection 23-1 provided at the upper end of the end ring 2 and connected to the lower end of the lid body 1 is broken by the tensile force, and the process is broken. 19, the interfering projection 21-1 on the inner circumference of the end ring 2 is bent downwards completely during continuous operation, and the interfering projection 21-1 on the inner periphery of the end ring 2 is inserted into the injection portion 910 of the pet container 900. 20, the end ring 2 is pushed along the lid body 1 to the pouring portion of the pet container 900 as shown in FIG. 910 at the same time.

As a result, the lid body 1 and the end ring 2 attached to the lid body 1 can be separated in order to collect the PET container 900 separated as a single material and maximize recyclability. .

21 to 24 are cross-sectional views showing operational states of the end ring simultaneous separation type PET container lid of the present invention according to the third embodiment of the present invention. Next, the operation of the end ring simultaneous separation type lid A-2 according to the third embodiment of the present invention will be described.

As shown in FIGS. 21 and 22, in order to open the injection part 910, the lid body 1 of the lid A-2 coupled to the injection part 910 is rotated counterclockwise. As shown in 23, the interference projection 21-3 of the end ring 2, which was restrained by the annular projection 920 projecting from the outer circumference of the injection part 910, is completely unfolded by the interference of the annular projection 920. As a result, the lid body 1 and the end ring 2 are separated from each other, so that the sealing protrusion 23-2 provided at the upper end of the end ring 2 and connected to the lower end of the lid body 1 is broken by the tensile force, and , the interference projection 21-3 can get over the annular projection 920 projecting from the outer circumference of the injection part 910 of the pet container 900, and as shown in FIG. can be simultaneously separated from the injection part 910 of the pet container 900 along the lid body 1 .

In short, according to the end-ring simultaneous separable PET container lids A, A-1, and A-2 of the present invention, the lid body 1 alone is separated from the injection part 910 of the PET container 900 in the process of separating it. Since the end ring 2 can be separated at the same time, it is possible to obtain the effect that the PET container 900 can be recovered as a single material for satisfying recyclability (recycling).

In particular, as described above, in the process of rotating the lid body 1 counterclockwise to separate it from the injection part 910 of the PET container 900, the gap of the incision 24 is widened, thereby deforming the shape of the end ring 2. (decrease in ring-shaped storage capacity), and the interfering projections 21, 21-1, 21-2, and 21-3 are removed from the annular projection 920 on the outer periphery of the injection part 910. The end ring 2 can be separated from the injection part 910 more simply and easily.

The above description is merely illustrative of the technical idea of the present invention, and a person having ordinary knowledge in the technical field to which the present invention belongs can understand the essential characteristics of the present invention. , various modifications, changes and substitutions are possible. Therefore, the embodiments and accompanying drawings disclosed in the present invention are not intended to limit the technical idea of the present invention, but are for illustrative purposes only. The range of thought is not limited. And the protection scope of the present invention should be construed by the following claims, and all technical ideas within the scope equivalent thereto should be construed as included in the scope of rights of the present invention. be.

In the waste resource recycling industry that collects and recycles resources from discarded waste resources, in the process of separating the lid body (lid) from the injection part of the PET container, not only the lid body but also the lower end of the lid is removed. It is possible to recover the PET container as a single material for recyclability satisfaction by being separated up to the ring at the same time.

Claims (11)

A lid for a PET container that provides a sealing function for detecting whether or not the lid has been opened, as well as a sealing function for preserving the contents in a state where the lid is connected to the inlet,
The lid includes a lid body coupled to the filling port for sealing to preserve the contents;
It is integrally formed on the lower side of the lid body and restrained by an annular projection provided on the lower side of the outer periphery of the filling port, and exhibits a sealing function for grasping whether or not the lid body has been opened. and an end ring that undergoes shape deformation during the separation process and is simultaneously separated from the inlet together with the lid body. The lid body is provided with a spiral protrusion on the inner periphery corresponding to the spiral fastening protrusion provided on the outer periphery of the injection port,
[Claim 2] The simultaneous separation of end rings according to claim 1, wherein a knurling part is further provided on the outer periphery to prevent slippage when a user grips and rotates clockwise/counterclockwise. Shaped pet container lid. The end ring is provided with interference projections on the inner periphery thereof that are engaged with restraining projections of the injection port when the lid body is coupled to the injection port,
a connecting protrusion that is integrally connected to a portion of the lower end of the lid body and induces shape deformation during the separation process of the lid body;
A sealing protrusion is provided that is integrally connected to another part of the lower end of the lid body and is broken during the separation process of the lid body, thereby enabling to grasp whether or not the lid body is opened. The end ring simultaneous separation type PET container lid according to claim 1, wherein The end ring has a long incision from the top end to the bottom end and is inclined in one direction, and is connected to the lid body when the lid body is separated. 4. The end ring according to claim 3, wherein a plurality of ring-shaped incisions are provided at regular intervals to induce a decrease in storage capacity due to the action of widening the gap due to the connecting protrusions that maintain the state. Simultaneous separation type PET container lid. The connecting protrusion protrudes from an upper end and has a certain range starting from one end of the incision in order to be connected to the lid body and induce widening of the gap in the incision when the lid body is separated. is connected to the lower end of the lid body in a state of being formed long,
The sealing projection is connected to the lid body and is broken from the lid body when the lid body is separated. 5. The end-ring simultaneously separable pet container according to claim 4, wherein the end-ring simultaneously separable PET container is connected to the lower end of the lid body in a short state that protrudes and has a predetermined range from the other end of the incision. lid. In the incision part, the connecting projection connected to the lid body is raised during the separation process of the lid body, and the gap widens, so that the restraining force of the connecting projection by the restraining projection on the outer circumference of the injection part is lost. 5. The end ring according to claim 4, characterized in that the end ring is formed in a slope shape with an inclination in one direction by a long incision starting from the top end to a position close to the bottom end in order to induce a shape deformation to make the end ring fit. Simultaneous separation type PET container lid. A lid for a PET container that provides a sealing function for grasping whether or not the container has been opened, as well as an airtight stopper for preserving the contents in a state where it is connected to an injection part,
The lid includes: a lid body coupled to the injection part for hermetic sealing to preserve the contents; and an annular projection formed integrally with the lower side of the lid body and projecting from the lower side of the outer periphery of the injection part. and an end ring that exhibits a sealing function for grasping whether or not the lid body has been opened, and that is deformed in the process of separating the lid body by a user and is separated from the injection part together with the lid body; including
The end ring includes an interference projection that is restrained by the annular projection when the lid body is coupled to the injection part, while extending horizontally and vertically from the boundary portion of the lid body to "

By forming the cutout portion having the shape of "", there are formed a plurality of deformed portions that cause a shape deformation that spreads outward so that the interference protrusion can overcome the annular protrusion during the separation process of the lid body from the injection portion. The upper end of the deformation portion protrudes so as to be integrally connected to the lower end of the lid body, and is broken during the separation process of the lid body to determine whether or not the lid body is opened based on the broken state. An end-ring simultaneous separation type pet container lid, characterized in that it is provided with a sealing protrusion that enables The interference protrusion protrudes from the inner surface of the deformable portion so as to be constrained by the annular protrusion, and has an inclination such that the tip of the protrusion faces upward,
In the process of separating the lid main body from the injection part, the annular protrusion is bent downward, and the downward bending induces the shape deformation of the deformation part. The end ring simultaneous separation type pet container lid according to claim 7, characterized in that it can be climbed over. The interference projection has a shape of a simple projection that induces shape deformation of the deformation portion in the process of separating the lid body from the injection portion, and that can overcome the annular projection during the shape deformation. The end ring simultaneous separation type PET container lid according to claim 7. A lid for a PET container that provides a sealing function for grasping whether or not the container has been opened, as well as an airtight stopper for preserving the contents in a state where it is connected to an injection part,
The lid includes: a lid body coupled to the injection part for hermetic sealing to preserve the contents; and an annular projection formed integrally with the lower side of the lid body and projecting from the lower side of the outer periphery of the injection part. and an end ring that exhibits a sealing function for grasping whether or not the lid body has been opened, and that is deformed in the process of separating the lid body by a user and is separated from the injection part together with the lid body; wherein the lid body and the end ring are separated from each other by a cutout;
On the inner circumference of the boundary between the lid body and the end ring,
While connecting the lid body and the end ring, the lid body is constrained by the annular protrusion when the lid body is coupled to the injection part, and the annular protrusion is removed during the separation process of the lid body from the pet container. A plurality of interference projections that cause shape deformation so as to be able to climb over are protruded at regular intervals, respectively, connecting the lower end of the lid body and the upper end of the end ring, and during the separation process of the lid body. An end-ring simultaneous separable pet container lid, characterized in that it is provided with a sealing projection that is broken into two pieces, and that enables grasping whether or not the lid body has been opened according to the broken state. Both ends of the interference projection are integrally connected to the lower end of the lid body and the upper end of the end ring, and are bent to one side so as to be constrained by the annular projection and protrude to form a "<" shape. ,
During the process of separating the lid body from the injection part, the annular protrusion unfolds and separates the lid body and the end ring from each other. The end ring simultaneous separable pet container lid according to claim 10, characterized in that it is possible to avoid interference of the annular projection as much as possible.

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