JPH0440271B2 - - Google Patents

Description

Detailed Description of the Invention [Industrial Application Field] The present invention relates to an improvement in a container with a lid, in which the periphery of the opening of the container with a flange is covered with a film lid, and more specifically, the invention relates to an improvement in a lidded container in which a film lid is covered around the opening of the container with a flange. Concerning containers that open and close.

[Prior Art] Conventionally, with regard to double-structured composite containers and other molded containers in which a tray with a cover or a tray with a cover is housed in an outer box, the container is covered with a single sheet of film.
Improvements in the opening function of the container by extending the opening knob around the periphery of the flexible cover were pursued, and efforts were made to improve the opening function of the cover by applying special processing to the container flange and adding auxiliary devices to the container. However, as a result, the structure of the entire container became complicated, and the film remaining after the covering film was once opened did not have a good appearance and was not resealable. In addition, the opening knob that extends around the periphery of the lid is generally placed on the edge or side wall where it is difficult to see so as not to spoil the appearance. Accidents may occur where the product is damaged or deformed. Furthermore, the opening knob is only used for opening the package.
There was no concept of using the opening knob itself as a design element of the lid.

[Problems to be Solved by the Invention] Despite its simple configuration, the present invention is easy to open and allows natural resealing, and has opening and resealing functions that can be used to enhance decorative effects. The purpose is to provide a container with a lid.

[Means for Solving the Problems] The present invention for solving the above problems provides a container comprising a flange portion of a container opening covered with a cover made of a bilobal film, the container opening consisting of a cover in which the ends of two films are butted or overlapped at the crossing point, and a cross-cutting piece is attached to the edge of at least one of the film ends,
Furthermore, the container with a cover is characterized in that the cover is temporarily attached to a pair of flange portions where the knob pieces are perpendicular to each other, and the cover can be opened and closed by reversing the knob pieces.

[Operation] When the free transverse tab piece in the middle of the opening of the container is picked and turned over, the seal portions between the ends of the film peel off, and then the seal portions between the tab pieces and the pair of orthogonal flanges are peeled off. is peeled off, one side of the film is opened, and one side of the item inside the container can be taken out. If you leave the seal at the end of the film, the tab will act as a weight and you can reseal it.

Furthermore, by unsealing the other film, the lid of the container can be fully opened, and if resealing is necessary, the seal at the end of the film can be left in place.

In this way, since the opening position of the cover is located midway through the opening of the container, both sides can be opened.

[Example] An example of the present invention will be described below with reference to the drawings.

In FIG. 1, each end 4 of the bilobal film 2,
A perspective view of a cover 1 is shown in which a transverse tab 5 is attached to the edge 4' of the end 4 of the upper film 2, which are stacked together.

The films 2 and 3 have the same vertical width and the same or different horizontal widths. The length of this one film determines the relative placement position of the transverse knob, which will be described later, so it has a one-point mark-like effect.
If you are expecting a ribbon effect, it is better to bias it to the left or right.

The films 2 and 3 are made of an appropriate material such as cellophane or plastic, and can be selected from stretched and unstretched transparent and translucent films. Depending on the contents to be stored, paper,
Treated paper and other composite materials can also be used.

Now, on the upper surface of the end portion 4 of the upper film 2 whose ends are overlapped with each other, a gripping piece 5 is provided across the upper surface along the edge 4'. This transverse tab 5 has the primary function of opening and closing one of the films constituting the lid, and also has the function of keeping the film under constant tension during a series of operations such as opening and resealing. That is, by attaching the knob 5, a certain degree of rigidity and shape retention is imparted to the edge of the upper film 2, and uniform tension is imparted to the entire film to prevent wrinkles and to prevent the film from sticking. Furthermore, even when the film constituting the lid is opened and resealed by reversing the grip piece 5, the tension of the film before opening can be maintained due to the weight of the grip piece.

Next, the relationship between the two leaves of film and the picked pieces is explained in the third section.
To explain with reference to the drawings, Fig. 3a shows a cross-sectional view of the cover at section A-A in Fig. 1;
Further, Figs. b and c show cross-sectional views of other embodiments of overlapping and abutting film ends. In Figure 3, Figures a and b are superimposed,
c shows the configuration in the case of matching. They are made of two-lobed film, and have a common feature in that a gripping piece is provided across at least one end of the film. That is, the films 2 and 3 are overlapped or abutted, and a grip piece 5 fixed by hot melt is transversely attached to the edge 4' of the upper surface of one of the film ends 4, and the grip piece 5 can be attached as needed. One or more tongue pieces 15 that assist in picking are extended on one end or both ends (see FIG. 4).

When fixing the tab 5, excess hot melt agent may spill out and inadvertently adhere to the other film, causing trouble in opening the film. It is preferable to attach the knob piece 5 transversely in the extended state (not shown).

Next, in the case of overlapping two films,
The upper surface of the end 6 of the lower film 3 is heat-sealed at the lower surface of the end not directly below the edge 4' of the upper film to which the knob 5 is attached. That is, by making the upper film end 4 a free end that is not restricted by the seal portion 7, the knob 5 can be freely moved. Since the bilobed film itself has flexibility, it is easy to slip a finger into the free edge 4' of the film or the lower surface of the end 4. When heat sealing is performed directly below the upper film edge 4', the sealing portion 7 can be hidden by the tab 5, but the film edge 4' to which the tab 5 is fixed is restricted by the sealing portion 7 directly below. Therefore, the picking piece 5 is difficult to pick.

In addition, as shown in FIG.
If the end portions 6 of the film are also fixed with hot melt or the like and attached crosswise, the effect of the above-mentioned gripping pieces on the upper film can be expected on the lower film 3 as well. A double-openable cover consisting of the lower films 2 and 3 is obtained.

When the grip pieces 5, 5' are attached to both the upper and lower films, the grip piece 5' on the lower film is attached so as to be located directly below the upper film.
Looks good on the outside.

Next, FIG. 3c shows the edge 4' of the film end,
6' is a cross-sectional view of the state where they are butted against each other. This grip piece 5'' spans both ends of the bilobal films 2 and 3 and is attached transversely.Although it has a structure with excellent sealing properties, if the adhesive strength is not adjusted, the grip piece 5''
There is a possibility that the flange portions on both sides will peel off first before the film peels off from either end of the film, making it impossible to open the seal at the cross section.

Therefore, if the shape of the application of the hot melt on the side where the tab is held and the opening is started is made into a chevron or wave shape, the tab can be flipped and opened only together with the film on the side where the tab is flipped and opened. The adhesive strength may be adjusted in the following order: edge 6' of the end of the film 3<flange portion<edge 4' of the end of the film 2.

FIG. 2 shows an embodiment of a container in which a cover having the above structure is heat-sealed and attached to the flange portion 12 of the opening of the container 11. As shown in FIG. Pick piece 5
The cover is heat-sealed so that the cover can be easily peeled off at a pair of orthogonal flange portions 12, so that the cover can be opened and closed freely. It is preferable that the other pair of flange portions not be easily separated. This is because it serves as a fulcrum for the part of the cover that is to be resealed. The releasability of such a flange portion can be easily adjusted by varying the width of the heat seal. In the above case, the heat-seal width of the pair of flange portions where the tabs are perpendicular to each other may be made narrower than that of the other pair of flange portions. Further, the amount of adhesion at the periphery of the cover is sufficient to the minimum that can be covered with adhesive.

Incidentally, FIG. 5 shows a state in which the lid of the lidded container shown in FIG. 2 is opened. At the beginning of opening, as shown in FIG. 3, the transverse gripping piece 5 is separated from the other film end so that it can be easily picked. The film 2 also has no wrinkles and has a good appearance. Furthermore, the tab acts as a weight when resealing the package, allowing it to be restored to a state close to the state before opening. This is also one of the benefits of picking pieces.

In order to continuously manufacture the lidded container of the present invention, first, two rows of films of a predetermined width are wound around rolls, and a connected transverse knob is attached to the end side of the continuous film that is unwound from one roll. Attach the strips continuously using hot melt, etc., and overlap the bottom surface of the end to which the pick strip is attached to the end of the other continuous film and heat seal as necessary to create the original fabric for the cover. . Thereafter, the cover of the present invention is completed by cutting this continuous original fabric into a predetermined width that can cover the opening of the container. Further, the cover is heat-sealed to the flange of the opening of the container, or the continuous raw fabric is continuously heat-sealed to the flange of the containers arranged, and then cut into container units to complete the container with the cover. Alternatively, without preparing the original fabric for the cover in advance, the end sides of the film may be overlapped on the aligned container openings, then heat sealed and cut into container units.

The above-mentioned container with a cover can be used as is, but by making the container into a double-layered composite container that is attached to an open top type outer box, the outer surface of the container body is covered and further added value can be obtained. It can also be granted.

Note that when the present container is attached to an outer box, it is preferable to minimize the contact area between the bottom of the container and the inner surface of the bottom of the outer box. This is because even if the container is spot-bonded with hot melt to prevent the container from moving within the outer box or popping out from the outer box, the contained contents will not be easily affected by heat, which is preferable in terms of quality control. To minimize the contact area at the bottom of the container, it is possible to raise the bottom by some means, such as forming outward protrusions at the four corners of the container or forming multiple ribs on the bottom. It is possible to do so.

[Effects of the Invention] By employing the above configuration, the following effects are achieved.

First, since the gripping pieces 5 are attached transversely, the force when opening the film constituting the cover is uniformly transmitted to the end of the film and is dispersed.
The wrapped film is neatly and easily peeled off from the container flange while still intact, giving it a good appearance after opening, and resealing is smooth with the guidance of the tab, leaving the container in almost the same condition as before opening. Can be restored.

In addition, the shape of the tab itself does not matter as long as it is attached across the opening of the container, so it can be formed into various shapes (see Figure 4), and if appropriate printing and markings are applied, the effect of a one-point mark can be achieved. You can expect a ribbon effect. The relationship between printing on the film itself and the contents (the contents can be seen through)
This effect is all the more important since there is a limit to this.

Furthermore, since the opening position of the cover is located at the part that crosses the opening of the container, that is, in the middle of the opening,
Unlike in the past, the opening knob provided on the periphery of the cover that extends from the flange of the container will not be damaged or deformed due to the containers coming into contact with each other, so the opening function will not deteriorate and the knob can be adjusted properly. It has the advantage that it can be picked, and the tab located in the middle of the opening is easy to pick, making it very easy to start opening.

As described above, the present invention exhibits various effects, has great practical effects, and is a meaningful container with a lid that is suitable for mass production.

[Brief explanation of drawings]

Fig. 1 is a perspective view of the cover of the present invention, Fig. 2 is a perspective view of a container covered with the cover of the present invention, and Fig. 3a.
1 is a sectional view of the cover taken along the line A-A in FIG. 1, b and c are sectional views of other embodiments of the cover, FIG. It is an explanatory view showing an unsealed state of a container with a lid. 1... Cover, 2, 3... Film, 4, 6...
End, 4', 6'...Edge, 5...Transverse knob, 7
... Seal part, 15, 15' ... Tongue piece, 11 ...
Container, 12...flange part.

Claims (1)

[Scope of Claims] 1. A container in which a flange of a container opening is covered with a cover made of two films, wherein the ends of the two films are pushed together at a cross section of the container opening. A container with a cover consisting of a cover that is placed or overlapped and has a transverse tab attached to at least one end edge of the film. 2. The container with a cover according to claim 1, wherein the cover is temporarily attached to a pair of flange portions where the knob pieces are perpendicular to each other, and the cover can be opened and closed by reversing the knob pieces.