JP2003128103A - Synthetic resin vessel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a synthetic resin vessel for housing and packaging foods such as daily dishes and pickles containing juice in which a part of a lid can be easily picked up, folded and opened at draining the juice. SOLUTION: One part 17a of a hem 17 of an outer skirt 16 of the lid 2 is formed shorter than the other part 17b, recessed corners 18 and 18 are provided at a part where both ends of the short skirt 17a and the other part 17b meet, and a peeling knob 19 is expanded outwardly from the short skirt 17a above an expansion part 8 of a vessel body 1 with a clearance C. When the knob 19 is picked and folded upwardly while peeling the lid 2 from a heat- bonded part to the vessel body 1, bending stresses are concentrated in the recessed corners 18 and 18 to facilitate the folding.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a synthetic resin container used for accommodating and packaging ready-made prepared foods having broth or pickled juice and foods of various pickles.

[0002]

2. Description of the Related Art When prepared foods such as prepared foods and lightly pickled vegetables are stored in a synthetic resin container before being sold, some prepared foods include boiled fish, dried daikon radish, and Takano tofu, and cucumbers. It may be stored in a synthetic resin container together with broth or sap such as fir tree, and in the case of pickles such as kimchi and plum, or lightly pickled, it is stored in a synthetic resin container together with pickled juice.

In a synthetic resin container for containing these foods, a synthetic resin sheet is formed into a dish shape corresponding to the upper end opening of the container body to form a lid, and the lid is fitted to the upper edge of the opening of the container body. By heat-bonding so that it can be peeled off again, it is sealed so that simmered or pickled juice does not spill during the sales process. A knob is provided on a part of the outer periphery of the lid to make it easier to pinch the lid, and the lid does not accidentally come into contact with other things or get caught and the lid does not open unexpectedly. An overhanging part is provided on a part of the outer periphery of the upper edge of the main body, and the knob part of the lid is overlapped on this overhanging part so that the knob part can be avoided from contact with other objects or getting caught. There is.

[0004]

However, in the above-mentioned synthetic resin container in which the knob portion of the lid is overlapped on the overhanging portion of the container body, ready-made prepared foods and various pickles, which have both broth and pickled juice, Before eating the above food, flip the knob part of the lid to pinch the lid off the heat-sealed part with the container body and open the lid part to cut the simmered or pickled juice, but at this time, the container body There was a problem that it was difficult to turn the knob part of the lid that was overlaid on the overhang part of the.

This is because, firstly, the knob portion of the lid overlaps with the overhanging portion of the container body, so that the knob portion is difficult to peel off from the overhanging portion and secondly the synthetic resin sheet. This is because the lid has a strong waist and is difficult to bend arbitrarily. As a measure against the latter, there is a thing in which notches are inserted in the edges of both ends of the folded part of the lid with scissors in advance so that it can be easily opened by bending a part of the lid with a knob. After forming the lid, a step of making a notch with a knife such as scissors is required, which causes a high processing cost.

[0006] Therefore, an object of the present invention is to solve such a problem, and when the juice is drained, it is easy to flip the knob portion of the lid to easily pinch it, and it is easy to bend a part of the lid. In addition, the easily-foldable lid provides a synthetic resin container that can be obtained at the same time as molding and can be provided at low cost without the need for complicated processing such as making notches with a knife such as scissors after molding. To do.

[0007]

SUMMARY OF THE INVENTION The present invention comprises a synthetic resin container body which is open upward and a synthetic resin lid which closes an upper end opening of the container body. The lid is provided with a flange projecting outward from the entire circumference of the upper edge of the opening, an internal skirt hanging from the outer peripheral end of the flange, and a projecting part projecting outward from a part of the skirt of the internal skirt. Is a main surface wall portion that is fitted into the upper end opening portion of the container body by dropping, and a rising wall portion that is raised from the entire circumference of the main surface wall portion so as to be close to or overlap with the inner periphery of the upper end opening portion, A top wall portion that is outwardly projected from the entire upper edge of the wall portion and is heat-sealable so as to be removable again over the entire upper surface of the flange, and the inner skirt that hangs down from the outer peripheral edge of the top wall portion. Outside that is close to or outside of the outside The outer skirt is formed with a part of the hem shorter than the other part, and an entering corner portion is provided at a position where the short hem and both ends of the other part meet, respectively. It is characterized in that the knob portion for peeling from the hem portion is outwardly formed so as to be positioned above the protruding portion with a gap. In this case, a bendable fold line can be formed in a portion of the main surface wall portion on the line connecting the corner portions at the corners.

[0008]

According to the synthetic resin container having the above structure, the lid is heat-sealable and sealed so as to be removable again over the entire circumference of the flange of the container body. It can prevent the product from spilling out. When the contained food is to be drained, the lid is flipped over and pinched, and the lid is peeled from the heat-sealed portion and bent upward. At this time, since the knob part of the lid is projected from the short hem of the outer skirt and is arranged with a gap above the protruding part of the container body, it is easy to turn the knob part from the protruding part and to easily grip it. . Also, when the lid is pinched and a part of the lid is bent upwards, bending stress concentrates on the corners at both ends of the short hem of the outer skirt of the lid, so the corners of the lid should be protected from each other. The open portion to be tied is easily bent. Since a part of the upper end opening of the container body is opened by bending the opened portion of the lid, the juice can be discharged from the opening portion by tilting the entire container body so that the opening portion is located downward. A lid with a short skirt and an inward corner of the outer skirt can be molded at the same time as it is molded.

If a foldable fold is provided at a portion of the main surface wall portion on the line connecting the corner portions, the opened portion of the lid becomes easier to fold.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of a container body and a lid of a synthetic resin container showing an embodiment of the present invention, FIG. 2 is a perspective view of a part of the lid of the container, and FIG. 3 is a side view of a main part of the container. is there.

The synthetic resin container according to the present invention comprises a container body 1 and a lid 2 as shown in FIG. Container body 1
Is a quadrangular bottom wall 3 made of a thermoplastic synthetic resin sheet such as polyethylene terephthalate by a hot plate forming method or the like, and an inclined side wall 4 which is erected upward from the bottom wall 3.
Is formed into a substantially rectangular bowl shape in plan view having
The flange 6 is projected outward from the entire circumference of the upper edge of the inclined side wall 4, and an inner skirt 7 is hung from the entire circumference of the outer peripheral end of the flange 6 from a part of the skirt of the inner skirt 7. The overhanging portion 8 is formed by overhanging outward.

At one corner of the container body 1, adjacent inclined side walls 4 and 4 are formed by connecting chamfered side walls 5, and an inner surface of the chamfered side walls 5 is formed with a soup-cutting groove portion 10 in the vertical direction. ing. However, this juice cutting groove portion 10 is provided for smoothing the juice, but it is not always necessary and can be omitted.

As shown in FIGS. 1 and 2, the lid 2 is formed of a thermoplastic synthetic resin sheet such as polyethylene terephthalate by hot plate molding, and the lid 2 has a plan view substantially conforming to the plane shape of the upper end opening 11 of the container body 1. A main surface wall portion 12 which is formed in a quadrangular shape and is fitted slightly into the upper end opening portion 11 so as to fit therein.
And a peripheral frame portion 13 that is integrally connected to the outer periphery of the main surface wall portion 12 in a groove shape in cross section and fits on the flange 6 of the container body 1. The peripheral frame portion 13 having a groove-shaped cross section and having a substantially quadrangular shape in plan view has an upper end opening portion 11 of the container body 1.
A rising wall 14 close to or overlapping the inner circumference of the flat wall 15 and a flat top wall portion 15 protruding outward from the entire upper circumference of the rising wall 14 and overlapping with the upper surface of the flange 6 by heat fusion. It is formed in a shape having an outer skirt 16 that is hung from the outer peripheral end of the top wall portion 15 and is close to or overlaps the outer side of the inner skirt 7.

At one corner of the lid 2 that covers above the juice draining groove 10 of the container body 1, a portion 17a of the hem 17 of the outer skirt 16 corresponding to that portion is
The outer skirt 16 is formed to be shorter than the other portion 17b of the hem 17, and the short hem portion 17a and both side ends 17c of the other portion 17b,
The corners 18 and 18 are provided at the places where they respectively meet. Further, the short hem 17a is formed with a pull-out knob portion 19 which is outwardly protruded so as to be located above the protruding portion 8 of the container body 1. At this time, if the grip portion 19 is grasped and a bending force is applied upward to the corner portion of the lid 2, bending stress is likely to concentrate on the corners 18 and 18 at both ends of the short hem portion 17a. It will be easier.

The overhanging portion 8 of the container body 1 is provided with a knob portion 19 of the lid 2 so that the knob portion 19 of the lid 2 does not accidentally open due to contact with or catching on the other portion. Although it is provided to avoid contact with or catching with the lid 2, when the knob portion 19 of the lid 2 overlaps the protruding portion 8 of the container body 1, the knob portion 19 is turned over from the protruding portion 8. As it is difficult and difficult to pinch, as shown in Fig. 3,
A predetermined gap c is formed between the knob portion 19 and the overhang portion 8. In order to make it easier to fold the portion of the main surface wall portion 12 of the lid 2 on the line connecting the inset corner portions 18, 18, as in the illustrated example, a cross section V
It is preferable to form a shape, to form a thin groove, or to form a thin wall so that a bendable fold line 20 is provided.

In order to package a food such as a prepared food having a juice in a synthetic resin container composed of the container body 1 and the lid 2 having the above-mentioned constitution, after the food such as a prepared food is stored in the container body 1,
When the lid 2 covers the upper end opening 11 of the container body 1 in a predetermined direction so that the knob portion 19 is located above the overhanging portion 8, the main surface wall portion 12 slightly falls into the upper end opening portion 11 and is fitted therein. At the same time, the peripheral frame portion 13 is fitted on the flange 6.
After that, the top wall portion 15 of the peripheral frame portion 13 of the lid 2 is pressed with a heating press.
The lid 2 is heat-sealable to the container body 1 so as to be removable again by heating and pressing the entire circumference of the upper surface of the flange 6.

In the synthetic resin container having the above-mentioned structure, the lid 2 is heat-sealable and sealed so as to be removable again over the entire circumference of the flange 6 of the container body 1. There is no leakage.

When the soup is drained before eating or when the lid 2 is fully opened, the knob portion 19 of the lid 2 is flipped over and pinched to open a part of the lid 2. At this time, the knob portion 19 is opened. Since it is arranged above the overhanging portion 8 with a gap c, it is easy to turn with a fingertip and easy to pinch. When the lid 2 is bent upward while peeling from the heat-sealed portion with the container body 1 to a position where the lid 19 is pinched by the knob portion 19 and reaches the position where it reaches the line connecting the entry corner portions 18, 18, the entry corner portion of the lid 2 is formed. 1
Bending stress concentrates on the holes 8, 18 and the corners 18, 1 of the lid 2
The part on the line connecting 8 can be easily bent. By folding the lid 2, a part of the upper end opening 11 of the container main body 1 is opened, so that the juice can be discharged from the opening by tilting the whole container main body 1 so that the opening is downward.

The present invention is not limited to the container body 1 and the lid 2 which are formed in a quadrangle in a plan view as in the above embodiment, but may be formed in other polygons or a circle in a plan view. Can be similarly applied.

[0020]

According to the present invention, when the juice is drained, the knob portion of the lid can be easily flipped over, and the lid can be grasped by the knob portion to reach the portion on the line connecting the corner corners to each other. It can be easily bent upward while peeling it off from the heat-sealed part, and the short hem and corners of the outer skirt that facilitate the bending of the lid should be formed at the same time as the lid is formed. Therefore, there is an effect that it can be obtained easily and at low cost.

[Brief description of drawings]

FIG. 1 is a perspective view of a container body and a lid of a synthetic resin container showing an embodiment of the present invention.

FIG. 2 is a perspective view of a part of the lid of the container.

FIG. 3 is a side view of a main part of the container.

[Explanation of symbols]

1 container body 2 lid 4a Top opening edge 6 flange 7 Internal skirt 8 Overhanging part 11 Top opening 14 Rising wall 15 Top wall 16 outer skirt 17 Outer skirt hem 17a Part of hem (short hem) 17b The other part of the hem 18 Corner 19 knob C gap

   ─────────────────────────────────────────────────── ─── Continued front page    F term (reference) 3E062 AA03 AB14 AC02 BA20 BB01                       BB10 HC01                 3E084 AA06 AA24 AB06 BA01 BA08                       BA09 CC03 DB09 DB11 DC03                       FA09 FC04 GA08 GB12

Claims (2)

[Claims] 1. A container main body made of synthetic resin and open upward,
The container body comprises a lid made of synthetic resin that closes the upper end opening of the container body, and the container body has a flange projecting outward from the entire circumference of the opening upper edge, an inner skirt hanging from the outer peripheral end of the flange, and The inner skirt is provided with a protruding portion protruding outward from a part of the hem, and the lid is
A main surface wall portion that fits into the upper end opening portion of the container main body by falling, a rising wall portion that is raised from the entire circumference of the main surface wall portion and is close to or overlapping with the inner circumference of the upper end opening portion, and this rising wall portion. A top wall portion that is outwardly projected from the entire circumference of the upper end of the flange and that is heat-sealable over the entire circumference of the upper surface of the flange so that it can be re-separated, It is provided with an outer skirt that is in close proximity or overlap, and a part of the skirt of the outer skirt is formed to be shorter than the other part, and the short hem part and the both side ends of the other part meet each other. A container made of synthetic resin, characterized in that a corner portion is provided, and a knob portion for peeling from the short hem portion is outwardly stretched and formed so as to be positioned above the overhang portion with a gap. . 2. A bendable fold line is formed on a portion of the main surface wall portion on a line connecting the corners of the inner corner.
The synthetic resin container according to claim 1.