JP2000053129A - Unsealing structure for container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a container unsealing structure which is simple in construction having nothing that projects toward the outside of the container while being convenient for simple and certain operations for opening and closing, and excellent in resealing property. SOLUTION: A prearranged area 22A for opening surrounded by perforations is formed beforehand at an upper wall plate 22 of a container main body 21, a frame member 25 is fixed to the surface at the inside of the upper wall plate 22, a lid member 26 is fitted to the frame member 25 and the lid member 26 is fixed to the surface at the inside of the prearranged area 22a for opening. A holding tab 22C is formed at the prearranged area 22A for opening and with the holding tab 22C pulled upward, the perforations are ruptured and the lid member 26 can be removed from the frame member 25. As a result, contents can be taken out with the prearranged area 22A for opening opened like a door leaf. Since the container main body 21 has no parts projecting toward the outside while being not unsealed, efficiency can be improved for housing. Furthermore, operations for unsealing and resealing can be made simply while improving resealability.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a container opening structure.

[0002]

2. Description of the Related Art A conventional container is disclosed in JP-A-7-277.
A container with a cap provided with an opening device according to Japanese Patent No. 324 is known. This container, as shown in FIG.
The lid 13 is opened and closed along the direction indicated by the arrow in FIG. In such a container, when the lid plate 13 is first opened, the end 14A of the sealing seal 14 is peeled off, so that the liquid spout 1
It becomes possible to take out the content liquid from 1A out of the container.
Further, in this container, a lid receiving flange portion 15 is formed so as to circulate along the upper peripheral edge of the liquid outlet 11A, and a hook portion 13A formed on the peripheral edge of the lid receiving flange portion 15 and the lid plate 13 is formed. Are engaged by utilizing the resilience of both, so that the cover plate 13 can be held again in the closed state.

[0003]

However, in the above-described container with a cap, it is troublesome to peel off the sealing seal 14 after the cover plate 13 is opened.
Further, in this example, since the cover plate 13 protrudes from the upper portion of the container body 11, there is a problem that this protruding portion becomes an obstacle during accumulation.

[0004] The main problem to be solved by the present invention is that what means should be taken to obtain a container opening structure in which no projecting portion is formed in the container body in the sealed state. Another problem to be solved by the present invention is that a reliable opening operation and a closing operation can be easily performed, and what means should be taken to obtain a container reopening structure with good resealability. Is it good?

[0005]

According to the first aspect of the present invention,
A container opening structure, in which a frame member surrounding an opening scheduled region of the upper wall plate is fixed to an inner surface of an upper wall plate of a container body processed with a flexible material, and the frame member A lid member detachably fitted inside is fixed to the upper surface wall plate, and a perforation is formed in the upper surface wall plate along a contour of the expected opening area.

Therefore, according to the first aspect of the present invention, the upper wall plate is broken by perforation to raise the opening area of the upper wall plate to which the lid member is fixed, so that the lid member and the frame member can be fitted together. Can be opened and opened.
If the lid member and the frame member are fitted again, the container can be resealed. In the unopened state, since there is nothing protruding on the upper wall plate, the containers can be efficiently accumulated. For example, when boxing containers for transport,
The storage efficiency of the container can be increased.

According to a second aspect of the present invention, there is provided the container opening structure according to the first aspect, wherein the perforation is formed except for a part of the contour of the opening.

Therefore, according to the second aspect of the present invention, in addition to the operation of the first aspect of the present invention, no perforation is formed on a part of the contour of the portion to be opened. Department. For this reason, since the lid member is fixed to the upper surface wall plate of the portion to be opened, it does not come off from the container, and it is possible to prevent inconvenience such as loss.

According to a third aspect of the present invention, there is provided the container opening structure according to the first or second aspect, wherein a substantially U-shaped slit is provided at an intermediate portion of the upper wall plate surrounded by the perforations. The upper surface wall plate formed and surrounded by the slit is not fixed to the lid member.

Therefore, according to the third aspect of the present invention, since a substantially U-shaped slit is formed at an intermediate portion of the upper wall plate surrounded by the perforations, the upper wall plate of the portion surrounded by the slit is formed. It can be used as a knob that can be raised and held by hand during opening and closing operations. Therefore, operability can be facilitated in the present invention.

According to a fourth aspect of the present invention, there is provided the container opening structure according to any one of the first to third aspects, wherein an inner peripheral surface of the frame member and an outer peripheral surface of the lid member are provided. An engagement concave portion is formed on one surface, and an engagement convex portion is formed on the other surface.

According to the fourth aspect of the present invention, since the engaging concave portion and the engaging convex portion can be engaged and disengaged between the frame member and the lid member, the lid member side and the frame member side (the container body side). ) Can be reliably engaged. Therefore, the present invention enables reliable sealing with a simple opening and closing operation.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the container opening / closing structure according to the present invention will be described below based on an embodiment shown in the drawings.
1 is a perspective view of a main part showing the container in an unopened state, FIG. 2 is a perspective view of a main part showing a state in which a gripping piece is erected, and FIG. 3 is a perspective view of a main part showing an opened state. 6 are FIGS.
FIG. 4 is a main part sectional view corresponding to FIG. 3.

First, as shown in FIGS. 1 and 4, the opening structure of the present embodiment is provided on an upper wall plate 22 of a container body 21 mainly processed into a box shape with a paper material. Container body 2
A predetermined area of the upper surface wall plate 22 has a predetermined opening area 22A.
Is formed, a perforation 23 having a substantially U-shaped perforation is formed. This opening scheduled area 22
A contour portion (indicated by a broken line in the figure) of the portion A where the perforation 23 is not formed is a hinge portion 22B that is bent at the time of opening. This opening scheduled area 22
A has a substantially U direction opposite to the perforation 23 at a position closer to the center in the direction opposite to the hinge portion 22B.
A gripping piece 22C surrounded by a character-like slit 24 is formed.

A frame member 25 is fixed to the inner side surface of the upper wall plate 22 of the container body 21 so as to surround the above-mentioned opening area 22A. This frame member 25 is
It has a rectangular ring shape and is made of synthetic resin.
Further, on the inner peripheral surface of the frame member 25, an engaging concave groove 25A is formed to rotate. A lid member 26 made of synthetic resin is removably fitted in the frame member 25. further,
On the outer peripheral surface of the lid member 26, an engagement groove 25A of the frame member 25 is provided.
Is formed around the engaging projection 26A.
In addition, the above-described gripping piece 22C on the upper surface of the lid member 26
A concave portion 26B is formed in a portion corresponding to. The upper surface of the lid member 26 except for the engagement concave portion 26B is bonded to the rear surface (inner surface) of the opening area 22A of the upper wall plate 22.

Next, the operation and operation of the container having such an opening structure will be described. 1 and 4 show a state in which the container has not been opened. In this state, the perforations 23 formed so as to surround the planned opening area 22A in the upper wall plate 22 of the container body 21 are not broken, and the contents (not shown) are kept in a sealed state. Next, in order to open, as shown in FIGS. 2 and 5, the gripping piece 22C is picked up with a finger and bent. Then, the upper surface wall plate 22 and the cover member 26 in the planned opening area 22A are raised by holding the gripping piece 22C and pulling upward, and the perforation 23
Is broken. When the gripping piece 22C is further pulled up, as shown in FIGS.
Is disengaged from the engagement concave groove 25A of the frame member 25, and the lid member 26 becomes free, and the upper surface wall plate 22 of the planned opening area 22A is opened.
Is bent at the hinge portion 22 </ b> B to form an opening 27 in the upper wall plate 22. In this state, the content is
7 can be taken out. To seal again, the container body 21 can be resealed by engaging the lid member 26 and the frame member 25.

In this embodiment, since no projecting portion is formed on the container main body 21 in the sealed state, the appearance is improved. For example, even when a printing design is applied to the outer surface of the container main body 21, the opening structure can be improved. In addition, since there is no obstacle to stacking or stacking a large number of containers, efficient stacking is possible. Furthermore, in this embodiment, since the number of components of the unsealing structure is small, there is an advantage that manufacturing can be performed at low cost.

Although the embodiment has been described above, the present invention is not limited to this, and various design changes accompanying the gist of the configuration are possible. For example, in the above-described embodiment, the container body 21 is mainly made of a paper material, but the present invention can be applied to a container body made of a synthetic resin.

[0019]

As is apparent from the above description, according to the first aspect of the present invention, since there is no protrusion in the unopened state on the upper wall plate, the containers can be efficiently accumulated. This has the effect. Further, there is an effect that the storage efficiency of the container can be increased, for example, when the container is packed in a box for transportation.

According to the second aspect of the invention, in addition to the effect of the first aspect, the lid member is not detached from the container, so that the lid member can be prevented from being lost. In addition, since the lid member and the like do not come off, hygiene can be improved.

According to the third aspect of the present invention, in addition to the effects of the first and second aspects of the present invention, since there is a gripping piece which can be held by hand at the time of opening and closing operation, operability is improved. Can be easier.

According to the invention of claim 4, claims 1 to 1 are provided.
In addition to the effect of the invention described in claim 3, there is an effect that the lid member side and the frame member side can be reliably engaged, and a simple sealing operation can be performed with a simple opening and closing operation.

[Brief description of the drawings]

FIG. 1 is a perspective view of a main part in an unopened state showing an embodiment of a container having an opening structure according to the present invention.

FIG. 2 is a perspective view of a main part showing an opening start state of the embodiment.

FIG. 3 is a perspective view of a main part showing an opened state of the embodiment.

FIG. 4 is a sectional view of a main part showing an unopened state of the embodiment.

FIG. 5 is a sectional view of a main part showing an opening start state of the embodiment.

FIG. 6 is a sectional view of a main part showing an opened state of the embodiment.

FIG. 7 is a sectional view of a main part showing a conventional container.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 21 Container main body 22 Top wall plate 22A Expected opening area 22B Hinge part 22C Grip piece 23 Perforation 25 Frame member 25A Engagement groove 26 Lid member 26A Engagement projection 27 Opening

Claims (4)

[Claims] 1. A frame member surrounding an opening area of an upper wall plate is fixed to an inner surface of an upper wall plate of a container body processed with a flexible material, and is detachably attached to the frame member. A container opening structure, wherein a lid member fitted inside is fixed to the upper surface wall plate, and perforations are formed in the upper surface wall plate along a contour of the opening scheduled area. 2. The container opening structure according to claim 1, wherein the perforations are formed except for a part of a contour of the opening portion. 3. A substantially U-shaped slit is formed in an intermediate portion of the upper wall plate surrounded by the perforations, and the upper wall plate in a portion surrounded by the slit is not fixed to the lid member. 3. The container opening structure according to claim 1, wherein the container is opened. 4. An engaging concave portion is formed on one of an inner peripheral surface of the frame member and an outer peripheral surface of the lid member, and an engaging convex portion is formed on the other surface. Claim 1 to
The container opening structure according to claim 3.