JPH10218238A - Lid of packaging container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a sealingly closed lid to be easily removed by a method wherein an adhering tape covering an entire opening seal line composed of parallel punched-out lines arranged along an extending axis of the lid is adhered from a front side. SOLUTION: In case that a lid 1 closely closed against a main body 1 of a container is removed, at first a non-adhering section 6a acting as a guiding piece is held and then a seal 6 is peeled off toward a center of it. Then, a first tongue 4 defined by the opening seal line 3 is lifted up together with the seal 6 under a state in which it is being adhered to the seal 6. Then, as the seal 6 is pulled up toward the center of the lid 1 as it is, material quality of the lid 1 is of a double-axis extending film, resulting in that the lid 1 is broken wide at its center to generate an opening seal port. Then, the remaining second tongue 5 is held with fingers and pulled toward a circumferential edge as it is and then the tongue is broken together with its circumferential edge. As a result, the lid 1 is widely broken from the circumferential edge together with the central section and it may easily be removed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a lid of a synthetic resin container for accommodating raw noodles and the like, and to a technique which can be easily removed.

[0002]

2. Description of the Related Art Many packaging containers for raw noodles and the like have been disclosed which have a structure in which a transparent container whose inside can be seen is covered with a shrink film lid, and the periphery of the lid is heated to seal the transparent container. I have. This structure is simple and hygienic as a closed container, and has the advantage that drying can be prevented even with raw noodles due to its high sealing property.

[0003]

By the way, the above-mentioned container is preferable for quality control of products because of its high sealing property, but since the shrink material is shrunk and hardened by heat treatment when the consumer opens the lid. There is a problem that it is very hard to open. Therefore, as a conventional configuration for facilitating the opening of the lid, there is a technology disclosed in, for example, Japanese Patent Application Laid-Open Nos. 7-206042 and 8-282713.

In the invention described in Japanese Patent Application Laid-Open No. Hei 7-206042, a tab is provided on a skirt portion on the outer periphery of the lid, and V notches are formed on both side edges of the tab. The lid thus shrunk by the heat treatment hardens, and at the same time, the tab shrinks and becomes small, so that it has a problem that it is difficult to pull.
In addition, there is also a problem that the tab which has been contracted and hardened during operation may be stabbed between the claws and cause injury. on the other hand,
In the invention described in Japanese Patent Application Laid-Open No. 8-282713, a configuration is provided in which a tab is provided on a peripheral edge of a skirt portion, and a deteriorated portion due to an organic solvent is provided on both sides of the base of the tab. There is a similar problem that there is a danger, and there is also a hygiene problem of using an organic solvent that is toxic to food.

An object of the present invention is to solve the above-mentioned conventional problems, and an object of the present invention is to provide a lid structure capable of easily removing a sealed lid by adopting a simple structure. Things.

[0006]

According to the present invention, in order to achieve the above object, a lid for sealing a packaging container body by shrinking a peripheral edge thereof is provided. An opening line consisting of two punching line segments to be connected and one punching line segment connecting the intermediate portion or one of the terminal portions of the two line segments is provided, and the adhesive tape covering the entire opening line is attached to the front side. It is decided to adopt a means of sticking. The two punched line segments and one punched line segment at the middle or end portion are for easily breaking the lid made of the shrink material along the stretching axis. At the time of the above-mentioned breaking, the pressure-sensitive adhesive tape pulls the tape to easily break the lid material by the adhesiveness, and at the same time, plays a role of preventing moisture from evaporating from the punched line and preventing bacteria from entering.

Further, at least one end of the adhesive tape along the stretching axis is made a non-adhesive portion, so that this portion is easily pulled as a guide piece. Furthermore, by separating the adhesive tape into two pieces near the middle line segment of the two parallel line segments, the other tape remains even after one is peeled off, so that the break start portion can be easily formed. It can be confirmed.

[0008]

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 shows an embodiment of the present invention, 1 is a lid formed of a biaxially stretched film, 2 is a rib formed on the periphery thereof, and after covering this on a container body (not shown). A so-called shrink process is performed by heat treatment, and the lower edge of the rib 2 is shrunk and sealed. These packaging techniques are the same as those conventionally used.

Next, as a configuration disclosed as a gist of the present invention, reference numeral 3 denotes an opening line, which is a through line provided on the surface flat portion of the lid 1 and is punched into an H shape in a plan view. Tongue 4 and the second tongue 5 are formed. In the present embodiment, as shown in the drawing, the two line segments of the upper half of the H shape, that is, the center side of the lid is extended from the lower half, that is, the peripheral side, but the ratio is not a large factor. The required configuration is to connect two parallel line segments and their middle
That is, the opening line is formed by the line segments of the book. Reference numeral 6 denotes a seal having an area enough to cover the entire opening line 3 and is adhered to the surface of the lid including the opening line 3. Reference numeral 6a denotes a non-adhesive portion on the peripheral edge of the lid of the seal 6, which functions as a guide piece when the seal 6 is peeled off. FIG. 2 shows these enlarged plan views.

In the above-described configuration, in order to remove the lid 1 hermetically sealed from the container body, first, the non-adhesive portion 6a functioning as a guide piece is pinched and the seal 6 is moved in the center direction (arrow A in FIG. 2).
Direction). Then, the first tongue 4 defined by the opening line 3 floats together with the seal 6 as shown in FIG. Then, if the seal 6 is pulled up toward the center of the lid (the direction of arrow B in FIG. 3) as it is, the material of the lid is a biaxially stretched film.
The lid is broken in the stretching axis direction, and the lid is largely opened including the center. In this manner, the lid 1 is largely broken at the center side to form an opening.

By the way, only the opening at the center side described above is such that the lower end of the peripheral edge of the lid 1 is contracted and hardened by the shrink processing, and this portion still remains. Therefore, the lid can be removed more easily by breaking this portion. Therefore, if the second tongue portion 5 remaining in the state of FIG. 4 is pinched up with a finger and pulled up in the peripheral direction (the direction of arrow C in FIG. 4), it can be broken including the shrink-processed peripheral portion. . as a result,
The lid is largely broken from the peripheral portion to the central portion, and can be easily removed.

In the embodiment, the lid has a substantially square shape and the opening line 3 is provided so as to be parallel to the side.
What is important in the present technology is that the opening line 3 is provided along any one axis of the biaxial stretching direction, whereby the film constituting the lid is easily broken.
Even in the case of multiaxial stretching, the opening line 3 is provided along any one axis.

Further, the shape of the opening line 3 is not limited, as in this embodiment, and the ratio of two line segments of the H shape is not limited. As shown in FIG. 5, both ends of two parallel H-shaped line segments may be narrowed, or may be expanded in reverse as shown in FIG. These are intended to make the film easier to break when the tongue is pulled.

FIG. 7 is a cross-sectional view showing the second embodiment, in which a tape 8 is adhered so as to cover the short tongue 5, and the tape 7 is covered so as to cover the long tongue 4. Is attached. Although the essential technical features are the same as those of the first embodiment, by dividing the adhesive tape into two parts, the tape 8 is first peeled off in the direction of the arrow D and the tape 8 remains. If the guide is printed on the tongue 5, the tongue 5 can be easily pulled, and the workability is improved.

In the case of breaking the opening line with an adhesive tape as in the above-described embodiment, the opening is not only opened toward the center and then toward the periphery, but also in the first embodiment, the non-adhesive portion is opened. Is provided on the center side, and in the second embodiment, if the order of attaching the tapes is reversed, the tape can be opened first toward the periphery and then opened toward the center side, but the present invention also includes these. . Furthermore, as a configuration for simpler opening, a center-side end portion of two parallel punched lines is connected by a line segment to form a U-shaped opening line, and a non-adhesive portion is formed on the center side. It is also possible to provide an adhesive tape having a portion formed. In this case, the lid is broken toward the periphery by pulling up the adhesive tape.However, it is possible to open the shrink-processed part which is at least the hardest and is easy to injure fingers etc. The conventional problem described above can be surely solved. In the configuration in which the opening line has a U-shape, the connection line of the terminal portion may be provided on the center side or may be provided on the peripheral side, but in consideration of the purpose of opening, etc. More preferably, it is formed.

[0016]

According to the present invention, since the above-mentioned structure is adopted, the lid is largely broken along the opening line only by pinching and pulling the adhesive tape, so that the lid can be easily opened without damaging the finger. In addition, since the opening line is sealed with the adhesive tape, the sealed state can be maintained until immediately before, the drying can be prevented, and sanitation is achieved. When the non-adhesive portion is formed on the adhesive tape, it is easy to pinch the tape, and the pulling direction can be easily determined. In the configuration in which the tape is divided into two, the pulling order of the tape can be easily confirmed.

[Brief description of the drawings]

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

FIG. 2 is a plan view showing the configuration of an opening line and an adhesive tape.

FIG. 3 is a perspective view showing an opened state.

FIG. 4 is a perspective view of the same.

FIG. 5 is a plan view showing another embodiment of the opening line.

FIG. 6 is a plan view showing still another embodiment of the opening line.

FIG. 7 is a longitudinal sectional view showing a second embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Lid 2 Rib 3 Opening line 4.5 Tongue 6 Seal 7 Tape

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁶ Identification code FI B65D 47/36

Claims (3)

[Claims] 1. A lid for sealing a packaging container body by shrinking a peripheral edge thereof, comprising: two parallel punching lines provided along an extension axis of the lid; A lid for a packaging container, characterized in that an opening line consisting of a single punching line connecting the intermediate portion or one of the terminal portions is provided, and an adhesive tape covering the entire opening line is attached from the front side. 2. The packaging container lid according to claim 1, wherein at least one end of the adhesive tape along the stretching axis is a non-adhesive portion. 3. The packaging container lid according to claim 1, wherein the adhesive tape is separated into two pieces in the vicinity of an intermediate line segment between two parallel line segments.