JP3004391B2 - Sealed containers and lids - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sealed container in which foods such as fruits and jelly liquid are filled, and a lid for the sealed container.

[0002]

2. Description of the Related Art Conventionally, there has been known a sealed container in which a plastic container main body is filled with fruits, jelly liquid, and the like, and the container main body is sealed with a lid material.

[0003] Among these, the plastic container body has a container body and a flange provided at the upper end opening of the container body, and the container body is formed by thermoforming a plastic laminate. You. On the other hand, the lid is heat-sealed to the flange of the container body.

[0004] That is, the lid member includes a heat seal portion fused to the flange portion of the container body, a side portion extending downward from the heat seal portion, and a lid portion connected to a lower end of the side portion. The lid covers the opening of the container body.

[0005]

As described above, the lid member has the heat seal portion, the side portions, and the lid portion, and has a drop-down lid structure as a whole.

[0006] Generally, the dropping lid material is provided separately from the container body.
The lid material is produced by thermoforming a plastic laminate, and a large number of the lid materials thus produced are stored (stacked) and automatically supplied. When stacked, the side and the lid of the upper lid material enter into the space formed by the side and the lid of the lower lid material. In this case, unless the upper lid material enters the lower lid material accurately, there is a problem that the lid materials are stacked in an inclined state as a whole.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and an object of the present invention is to provide a lid member that can be stacked in a large number with high accuracy and a sealed container using the lid member.

[0008]

According to the present invention, there is provided a plastic container body having a flange at the periphery of an opening, and a plastic lid material for sealing the container body, wherein the lid material is fused to the flange portion. A heat sealing portion, a side portion extending downward from the heat sealing portion, and a lid portion connected to a lower end of the side portion and covering an opening of the container body, and a predetermined position of a side portion of the lid material. A sealed container characterized by having provided a vertical rib forming a concave portion corresponding to the outer surface while forming a protruding portion on the inner surface, and a heat seal portion,
A side portion extending downward from the heat seal portion; and a lid portion connected to a lower end of the side portion and covering an opening of the container body. 2. A lid material for use in a sealed container according to claim 1, wherein a vertical rib forming a concave portion corresponding to the outer surface is provided.

[0009]

According to the present invention, in the case of an automatic feeder in which a large number of lids are stacked, the projections of the vertical ribs of the lower lid fit into the recesses of the vertical ribs of the upper lid. , The upper lid member can be positioned with high accuracy.

[0010]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a plan view showing a lid according to the present invention, FIG. 2 is a side sectional view showing a state where the lids are stacked, and FIG. 3 is a view showing a sealed container according to the present invention.

First, the sealed container will be described with reference to FIG. As shown in FIG. 3, the sealed container 1 is constituted by filling a solid fruit 4 and a jelly liquid 5 into a plastic container main body 2 and sealing the container main body 2 with a plastic lid 3. . The container body 2 includes a container body 2a and a flange 2b provided on the periphery of the upper end opening of the container body 2a. On the other hand, the lid 3 is heat-sealed (fused) to the flange 2 b of the packaging container 2, and the container body 2 a of the container body 2.
And a lid portion 3a that covers the upper end opening of the cover, and has a drop-down lid structure as a whole. In addition, the heat seal portion 3b and the lid portion 3a
Are connected to each other via a first side portion 7, a step portion 9, and a second side portion 8.

That is, as shown in FIG. 2, the first side portion 7 extends downward from the heat seal portion 3b, and the first side portion 7 is connected to the second side portion 8 via a horizontally extending step portion 9. I have.
The second side portion 8 extends downward from the step portion 9 and is connected to the periphery of the lid 3a.

The first side portion 7 of the side portions 7 and 8
Is a portion fitted into the inner surface of the container body 2a of the container body 2.

As shown in FIG. 1, the lid 3 has a shape corresponding to the shape of the upper end opening of the container body 2a of the container body 2, and the lid 3 is peeled off at one corner of the lid 3. Tab 1 for
0 is attached. The shape of the lid material can take various shapes such as a square shape, a round shape, and a hexagonal shape corresponding to the packaging container 2.

As shown in FIGS. 1 and 2, a predetermined position of the first side 7 (side of the side
(Substantially at the center position), four vertical ribs 11 are provided. Each vertical rib 11 has a projection 11a on the inner surface of the first side portion 7.
At the same time as forming the projection 11
The recess 11b corresponding to a is formed.

Further, four receiving portions 1 are provided on the second side of the lid member 3.
2 are provided. Each receiving part 12 protrudes outward from the second side part 8. As shown in FIG.
Is provided at a position slightly deviated from the center.

The position of the receiving portion 12 is different between the lids 3 to be stacked, and the receiving portion 12 of the upper lid 3 is different.
Abuts on the step 9 of the lower lid member 3 so as to keep the distance between the stacked lid members 3 constant.

Next, the material of each of the above components will be described.

The container body 2 is made of, for example, polypropylene (P
P) / adhesive layer (AD) / ethylene-vinyl alcohol copolymer (EVOH) / adhesive layer (AD) / polypropylene (EVOH) / adhesive layer (AD) / polypropylene (P
It is produced by thermoforming the laminate of P).

On the other hand, the drop-off lid member 3 is formed by thermoforming a gas barrier laminate of, for example, polypropylene (PP) / adhesive layer (AD) / ethylene / vinyl alcohol copolymer (EVOH) / adhesive layer (AD) / sealant layer. Created. The lid 3 is formed by sealing the sealant layer with the flange 2 b of the packaging container 2.
It is heat-sealed toward the side.

Next, a method of manufacturing a sealed container having the above-described configuration will be described.

First, the container body 2 and the lid member 3 as described above
Is made from the laminate having the above-described layer configuration. The container main body 2 and the lid member 3 thus prepared are stacked and stored separately in the case of an automatic feeder. FIG. 2 shows a stacked state of the lid member 3. As shown in FIG. 2, since the positions of the receiving portions 12 are different between the lid materials 3 to be stacked, the receiving portions 12 of the upper lid material 3 are different from the steps 9 of the lower lid material 3.
Abut. For this reason, the gap between the lid materials 3 to be stacked can be kept constant.

At the same time, since the lids 3 are provided with the vertical ribs 11, a plurality of lids 3 can be stacked with high accuracy. That is, when being stacked, the projections 11a of the vertical ribs 11 of the lower lid 3 fit into the recesses 11b of the vertical ribs 11 of the upper lid 3, so that the upper lid 3 is attached to the lower lid 3. Positioning can be performed with high accuracy. For this reason, the stacking accuracy of the lid member 3 can be improved.

Next, one of the stacked container bodies is
The two container bodies 2 are taken out, and the container body 2 is filled with the solid fruit 4 and the jelly liquid 5. Next, one lid member 3 is taken out from the stacked lid members, and the heat sealing portion 3b of the lid member 3 is heat-sealed to the flange portion 2b of the container body 2, whereby the container body 2 is hermetically sealed. A container 1 is obtained.

As described above, according to this embodiment, when manufacturing the sealed container, when the lids 3 are stacked in correspondence with the automatic feeder, a large number of lids 3 can be stacked with high accuracy. For this reason, when stacking, the lid material 3 does not tilt or collapse.

[0027]

As described above, according to the present invention,
When stacking a large number of lids, the upper lid can be accurately positioned with respect to the lower lid. Therefore, when stacking the lid members, the lid members do not tilt or collapse.

[Brief description of the drawings]

FIG. 1 is a plan view of a lid member according to the present invention.

FIG. 2 is a side sectional view showing a state where a plurality of lid members are stacked.

FIG. 3 is a side sectional view of a sealed container according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sealed container 2 Container main body 2a Container trunk part 2b Flange part 3 Lid material 3a Lid part 3b Heat seal part 7 First side part 8 Second side part 9 Step part 11 Vertical rib 11a Projection part 11b Concave part 12 Receiving part

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B65D 77/20 B65D 43/08

Claims (2)

(57) [Claims] 1. A plastic container body having a flange on the periphery of an opening, and a plastic lid material for sealing the container body, wherein the lid material is heat-sealed to the flange portion; A side portion extending downward from the heat seal portion, and a lid portion that is connected to a lower end of the side portion and covers the opening of the container body, has a protruding portion on the inner surface at a predetermined position on the side portion of the lid material. A sealed container characterized by being provided with a vertical rib forming a concave portion corresponding to an outer surface. 2. A heat sealing portion, a side portion extending downward from the heat sealing portion, and a lid portion connected to a lower end of the side portion and covering an opening of the container body, wherein a side of the lid member is provided. 2. A lid material for use in a sealed container according to claim 1, wherein a vertical rib is formed at a predetermined position of the portion to form a protrusion on the inner surface and to form a concave portion corresponding to the outer surface.