JP6178441B1 - Container opening sealing structure - Google Patents

Abstract

Provided is a container opening sealing structure in which a central portion can be easily cut out after removing a cap, leaving a peripheral portion of an inner seal. A container opening sealing structure according to the present invention includes a pressing plate provided inside a cap, and at least two layers of an outer layer and an inner layer. An inner seal that is attached and pressed by a pressing plate, an opening groove that is provided in an inner layer of the inner seal and that guides the inside of the opening to be cut away leaving the periphery of the inner seal, and is embedded in the opening groove and opened. An opening yarn that breaks the outer layer according to the groove and cuts off the inner seal. [Selection] Figure 1

Description

  The present invention relates to a sealing structure for a container opening, and more particularly to a sealing structure for a container opening that can be easily cut off leaving the periphery of an inner seal.

  An inner seal for sealing the opening is provided in the container of the bottle containing the instant coffee powder. The inner seal is easily broken when pressed with a finger, so it is easy to make a hole as small as a fingertip. In the case of a large bottle, it is necessary to remove the center part round and leave the circumference of the inner seal in order to put a spoon etc. The flat part at the top of the bottle is strongly rounded with the inner seal firmly adhered to it. Difficult to break. When part of the inner seal of the flat part at the top of the bottle is removed at the time of tearing, the flat part becomes uneven, and when the cap is remounted, moisture easily enters the inside of the bottle. In order to make a clean hole without leaving the surroundings, for example, a knife is raised and turned, but it takes time to cut.

  Japanese Patent Application Laid-Open No. H10-228561 discloses that the inner seal is provided with a swing-out port, which is covered with a hermetic seal, and a tongue piece of the hermetic seal is pulled to open the swing-out port. In this case, a spoon cannot be inserted into the outlet. Moreover, when the hermetic seal is peeled off, a gap is formed at the top of the bottle, and moisture easily enters. In Patent Document 2, when a circular cut line having a radius substantially equal to the size of the opening is put in the inner seal, and the lid is removed, the inner seal is peeled off together. Since the separation line is provided so as to leave the flat part at the top of the bottle as it is, the sealing degree does not decrease even if the central part of the inner seal is removed. However, since the inner seal is separated when the cap is opened, the inner seal is not opened even when the cap is opened.

JP 2000-355351 A JP 2013-199324 A

  An object of the present invention is to provide a container opening sealing structure in which a central portion can be easily cut off while leaving a peripheral portion of an inner seal after removing a cap.

The sealing structure of the container opening according to the present invention comprises a pressing plate provided inside the cap and two layers of an outer layer and an inner layer, and is heat-sealed to the top of the container so as to cover the opening, An inner seal that is pressed by a plate, an opening groove that is provided in an inner layer of the inner seal, and that guides the inside of the opening to be cut off leaving the periphery of the inner seal, embedded in the opening groove, An opening thread that breaks the outer layer in accordance with an opening groove and cuts off the inner seal, and the opening thread has one end protruding through the inner seal and projecting to the front side, and the other end being the inner seal. is fixed to the region surrounded by the opening groove, the tag is provided at one end of the tear thread which protrudes into the front side, the tag is characterized in that it is mounted on the inner seal

Another container opening sealing structure according to the present invention consists of a pressing plate provided inside the cap and two layers of an outer layer and an inner layer, and is heat-sealed to the top of the container so as to cover the opening, An inner seal pressed by the pressing plate, an opening groove provided in an inner layer of the inner seal and guiding the inner side of the opening to be cut away leaving the periphery of the inner seal, and embedded in the opening groove An opening thread that breaks the outer layer according to the opening groove and cuts off the inner seal ,
The opening groove includes a first opening groove (3a) and a second opening groove (3b), and the opening yarn is fixed to a region surrounded by the second opening groove (3b) of the inner seal, The end is fixed to a region surrounded by the first opening groove (3a) of the inner seal .

  According to the container opening sealing structure of the present invention, there is provided an opening groove that guides the inside of the opening to be cut off while leaving the periphery of the inner seal, and an opening thread that cuts off the inner seal according to the opening groove. Therefore, after removing the cap, the inner seal can be easily cut off with an opening thread. Moreover, since the periphery of the inner seal remains and the upper surface of the inner seal is not uneven, it can be sealed well by being pressed by the pressing plate even after opening.

  The opening yarn has one end protruding through the inner seal and protruding to the front side, and the other end is fixed to the area surrounded by the opening groove of the inner seal, so grasping and pulling one end of the opening yarn, along the opening groove The inner seal can be cut off. Since the opening yarn does not cross the top of the opening, the inner seal is pressed by the pressing plate even after opening, so that the opening can be satisfactorily sealed.

  A tag is provided at one end of the opening thread, making it easy to grasp and pull.

  Opening groove with first opening groove and second opening groove and pressing the second opening groove with your finger to open the second opening groove part, so you can pull the opening yarn and cut off the inner seal it can. Moreover, since the opening yarn is fixed to a region surrounded by the second opening groove of the inner seal and the other end is fixed to a region surrounded by the first opening groove of the inner seal, the opening yarn protrudes to the front side. There is no need. According to this, even after opening, the seal is pressed by the pressing plate and can be sealed well.

It is a perspective view of a container provided with the sealing structure of the container opening part by this invention. Example 1 It is explanatory drawing which cuts off an inner seal with an opening thread. It is sectional drawing of a container provided with an inner seal. It is a perspective view of a container provided with the sealing structure of the container opening part by this invention. (Example 2) It is a top view which shows the back side of the inner seal of FIG. It is explanatory drawing (1/2) which cuts off an inner seal with an opening thread. It is explanatory drawing (2/2) which cuts off an inner seal with an opening thread. It is sectional drawing of a container at the time of attaching a cap again after cutting off an inner seal.

  Hereinafter, a container opening sealing structure according to the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a perspective view of a container 4 including a container opening sealing structure 100 according to the present invention. The container 4 is made of glass and a plastic cap 1 is attached as an example, and an inner seal 7 is attached to the opening 8. The inner seal 7 is joined to the top 9 of the container 4 by heat. The inner seal 7 seals the opening 8 of the container 4. A pressing plate 2 is provided inside the cap 1. When the cap 1 is attached to the container 4, the pressing plate 2 presses the inner seal 7 at the top 9 of the container 4 and functions as an inner lid after the inner seal 7 is opened. An opening thread 5 is provided so that the inside of the opening 8 is cut off while leaving the periphery of the inner seal 7. As shown in the drawing circle of FIG. 1, the unsealed yarn 5 is pulled up so as to break the inner seal 7. One end of the opening yarn 5 penetrates the inner seal 7 and protrudes to the front side. A tag 6 is provided at one end of the opening yarn 5 to make it easier to grasp the opening yarn 5.

  FIG. 2 is an explanatory view of the inner seal 7 cut out by the opening yarn 5. The tag 6 is grasped, the opening thread 5 is pulled up, and the inner seal 7 is cut off. The opening yarn 5 is fixed to the back side of the inner seal 7. When the inner side of the opening 8 is cut away while leaving the periphery of the inner seal 7, the upper portion of the container 4 opens as shown on the right side of FIG.

  FIG. 3 is a cross-sectional view of the container 4 including the inner seal 7. The state before cutting off the inner seal 7 is shown. An inner seal 7 is attached so as to cover the opening 8 of the container 4 and is heat-sealed to the top 9 to seal the opening 8. The inner seal 7 includes at least a front side layer 7a and an inner layer 7b. For example, the front layer 7a can be an aluminum layer and the inner layer 7b can be a resin layer. An opening groove 3 is provided in the inner layer 7b, and an opening yarn 5 is embedded therein. The width of the opening groove 3 is a width that allows the opening yarn 5 to be pushed in. Further, the opening yarn 5 is fixed to the opening groove 3 at points of several centimeters so as not to be easily detached from the opening groove 3. The material of the opening yarn 5 may be the same resin as the material of the inner layer 7b of the inner seal 7, and may be joined in a detachable manner at points of several centimeters. In the state where the cap 1 is attached, the inner seal 7 is pressed against the top 9 by the pressing plate 2. The tag 6 of the unsealed yarn 5 is placed near the front center of the inner seal 7 but does not have a thickness and does not hinder sealing.

  FIG. 4 is a perspective view of a container 4 provided with a container opening sealing structure 100 according to the present invention. A cap 1 is attached to the container 4, and an inner seal 7 is attached to the opening 8. The inner seal 7 is joined to the top 9 of the container 4 by heat to seal the opening 8 of the container 4. A pressing plate 2 is provided inside the cap 1 and presses the inner seal 7 when the cap 1 is attached to the container 4. The opening groove 3 is composed of a first opening groove 3a and a second opening groove 3b so that the inside of the opening 8 is cut off while leaving the periphery of the inner seal 7. In Example 2, it is set as the structure which becomes the tag 6 when the 2nd opening groove | channel 3b is pushed with a finger | toe and cut | disconnected.

  FIG. 5 is a plan view showing the back side of the inner seal 7 of FIG. One end of the opening yarn 5 is fixed to a region inside the second opening groove 3b. The other end is fixed to the inner region of the first opening groove 3a. Since the opening groove 3 is on the back side of the inner seal 7 and is not visible from the front side, there is a stamp on the front side so that the position thereof can be seen.

  FIG. 6 is an explanatory view (1/2) of cutting the inner seal 7 with the opening yarn 5. First, the second opening groove 3b is pushed with a finger and separated to make the tag 6. The tag 6 is connected to the opening thread 5.

  FIG. 7 is an explanatory view (2/2) of cutting the inner seal 7 with the opening yarn 5. The tag 6 is grasped, the opening thread 5 is pulled up, and the inner seal 7 is cut off. When the inner side of the opening 8 is cut out while leaving the periphery of the inner seal 7, the upper portion of the container 4 opens as shown on the right side of FIG.

  FIG. 8 is a cross-sectional view of the container when the cap is attached again after the inner seal 7 is cut off. It is common in Example 1 and Example 2. The inner seal 7 remains on the flat portion at the top of the container 4, and since there is no unevenness in this portion, it can be sealed well after opening.

  Since the inner seal of the container can be opened so that the sealing performance can be maintained even after opening, the present invention is suitable as a sealing structure for the container opening.

DESCRIPTION OF SYMBOLS 1 Cap 2 Pressing plate 3 Opening groove 3a 1st opening groove 3b 2nd opening groove 4 Container 5 Opening thread 6 Tag 7 Inner seal 7a Front side layer 7b Inner layer 8 Opening part 9 Top part 100 Sealing structure of container opening part

Claims (2)

A pressing plate provided inside the cap;
An inner seal consisting of two layers of an outer layer and an inner layer, heat-sealed to the top of the container so as to cover the opening, and pressed by the pressing plate;
An opening groove that is provided in an inner layer of the inner seal and guides the inner side of the opening to be cut off while leaving the periphery of the inner seal;
Embedded in the opening groove, tearing the outer layer according to the opening groove, and opening yarn to cut off the inner seal ,
The opening yarn has one end protruding through the inner seal and protruding to the front side, the other end fixed to a region surrounded by the opening groove of the inner seal, and a tag at one end of the opening yarn protruding to the front side A container opening portion sealing structure provided, wherein the tag is placed on the inner seal .
A pressing plate provided inside the cap;
An inner seal consisting of two layers of an outer layer and an inner layer, heat-sealed to the top of the container so as to cover the opening, and pressed by the pressing plate;
An opening groove that is provided in an inner layer of the inner seal and guides the inner side of the opening to be cut off while leaving the periphery of the inner seal;
Embedded in the opening groove, tearing the outer layer according to the opening groove, and opening yarn to cut off the inner seal ,
The opening groove includes a first opening groove (3a) and a second opening groove (3b), and the opening yarn is fixed to a region surrounded by the second opening groove (3b) of the inner seal, The container opening portion sealing structure, characterized in that an end is fixed to a region surrounded by the first opening groove (3a) of the inner seal .

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