JP7528808B2 - container - Google Patents

Description

The present invention relates to a container in which a lid is fitted onto the container body.

A conventional container for yogurt, etc. is disclosed in Patent Document 1. This container comprises a container body, an inner lid, and an outer lid. The container body is made of paper with polyethylene on the inside side of the paper, and is formed into a bottomed cylindrical shape with a flange around the mouth. The inner lid is made of laminated paper with polyethylene on the inside side of the paper, and is thermally bonded to the flange. The outer lid is made of a resin molded product, and fits onto the flange of the container body.

The contents can be removed by removing the outer lid and peeling the inner lid off the flange. The outer lid can also be closed to store the container with the remaining contents.

Jitsuzen No. 57-140384 (pages 3-10, Figure 9)

However, the above-mentioned conventional containers have an issue with the outer lid being made from a resin molded product, which places a large burden on the environment.

The objective of the present invention is to provide a container that can reduce the environmental impact.

In order to achieve the above object, the container according to the present invention has a cylindrical container body with a bottom and a lid fitted to the upper end of the container body. The container body has a bottom, a flange portion arranged above the bottom and having an opening with an area larger than that of the bottom, and a cylindrical side wall portion connecting the bottom and the flange portion. The lid portion has a lower resin sheet sealed to the flange portion and a paper mount portion arranged on the upper portion of the lower resin sheet. The mount portion has a separably arranged annular outer frame portion and an inner plate portion arranged inside the outer frame portion and fixed to the upper surface of the lower resin sheet. The inner shape of the outer frame portion is the same as the inner peripheral shape of a cross section parallel to the bottom portion of the portion between the bottom portion of the side wall portion and the flange portion in the vertical direction.

With this configuration, one lid material plays two roles: a lid that performs the initial sealing (a conventional inner lid) and a lid that performs resealing (a conventional outer lid). This allows the number of parts to be reduced, and by eliminating the outer lid, which is a resin molded product, the environmental impact can be reduced.

The present invention also relates to a container having the above-mentioned configuration, in which the lid material has a break line adjacent to the inner periphery of the outer frame portion and penetrating the backing paper portion, the break line has a connecting portion that does not penetrate in part and holds the outer frame portion, and the outer frame portion is separated by breaking along the break line.

In the container of the present invention having the above configuration, the lid member has at least one protrusion that protrudes outward from a portion inside the outer frame portion to be separated.

In addition, in the container of the present invention having the above configuration, the outer frame portion has a divided frame portion that is divided in the circumferential direction by the protrusion.

In addition, the present invention further includes an upper resin sheet disposed above the mount portion in the container having the above-mentioned configuration, and the outer frame portion is fixed to the upper resin sheet.

In the container of the present invention having the above configuration, the inner plate portion is releasably held by a release agent layer disposed between the inner plate portion and the upper resin sheet.

In the container of the present invention having the above configuration, the outer frame portion is releasably held by a release agent layer disposed between the outer frame portion and the lower resin sheet.

The present invention provides a container that reduces the environmental impact.

FIG. 1 is a plan view of an example of a container according to the present invention. 2 is a cross-sectional view of the container shown in FIG. 1 taken along line II-II. FIG. 4 is an enlarged cross-sectional view of the lid and flange portion of the container. FIG. FIG. 2 is an enlarged cross-sectional view of the container with the lid removed. FIG. 4 is an enlarged cross-sectional view of the container when the lower resin sheet is opened. FIG. 2 is an enlarged cross-sectional view of the resealed container. FIG. 11 is an enlarged cross-sectional view showing a container of a first modified example. FIG. 13 is an exploded perspective view of a container according to a first modified example. FIG. 11 is a plan view showing a container of a second modified example. FIG. 11 is an exploded perspective view of a container according to a second modified example. FIG. 11 is an enlarged cross-sectional view of a resealed container of the second modified example. FIG. 13 is an exploded perspective view of a container according to a third modified example.

A container 100 according to one embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a plan view of an example of a container 100 according to the present invention. FIG. 2 is a cross-sectional view of the container 100 shown in FIG. 1 taken along line II-II. FIG. 3 is an exploded perspective view of the container 100. In FIGS. 1 and 3, the adhesive state between the lower resin sheet 50 and the adhesive portion 421 of the inner plate portion 42 of the mount portion 40 is shown with cross-hatching. In this specification, the direction of gravity is downward, and the opposite direction is upward.

<Container 100>
As shown in Fig. 1, the container 100 has a container body 10 and a lid material 20. A content S (see Fig. 2, etc.) is contained inside the container 100. Here, the content S is assumed to be food (e.g., gel-like such as yogurt, jelly, jam, etc.), but is not limited to this. For example, the content S may be powdered food such as salt, sugar, spices, or solid food such as processed meat. Furthermore, there are cases where the content S is not food, and may be a lubricant such as grease, a hair styling product, an aromatic, a wet wipe, or the like.

<Container body 10>
The container body 10 is a bottomed cylindrical shape capable of accommodating the contents S in the internal storage space 10S. In the container 100 of this embodiment, the container body 10 may be configured to have, for example, a paper base material and an internal coating layer having water resistance, gas barrier properties, etc. Examples of the water-resistant coating layer include a resin layer made of polyethylene (PE), polyethylene terephthalate (PET), etc. Examples of the gas-barrier coating layer include an aluminum layer.

The container body 10 may be formed from a thermoplastic resin such as polypropylene (PP) or polystyrene (PS). The container body 10 is not limited to these resins, and a wide variety of resins that are easy to mold can be used. When the container 100 is used to store food, at least the inner surface of the container body 10 is made of a material that is non-toxic or nearly non-toxic to the human body.

As shown in Figs. 1 and 2, the container body 10 has a bottom 11, a side wall 12, and a flange 13. The side wall 12 is tubular and extends vertically. The lower part of the side wall 12 is closed by the bottom 11. In other words, the container body 10 is tubular with a bottom. An opening 14 is formed at the upper end of the side wall 12 for inserting and removing the contents S contained inside the storage space 10S. The opening 14 faces the bottom 11 vertically. As shown in Fig. 2, the opening 14 is larger than the bottom 11. The side wall 12 is formed to expand from the bottom 11 toward the opening 14.

The side wall 12 is formed by bending a single plate-like member into a ring shape and gluing both ends. The side wall 12 extends vertically, and the bottom 11 is fixed at a position shifted upward from the lower end (see FIG. 2). This configuration increases the rigidity of the bottom 11. Note that if the container body 10 is an integrally molded resin body, the bottom 11 may be connected to the lower end of the side wall 12. The flange 13 extends outward from the upper end of the side wall 12. In other words, the flange 13 is disposed on the outside of the opening 14.

In the container body 10, the outer shape of the bottom 11, the outer and inner shapes of the side wall 12 (the outer shape of the opening 14), and the outer shape of the flange 13 are all approximately rectangular (assumed to be approximately rectangular here, but may be approximately elliptical, etc.) with curved corners and two adjacent straight lines in a plan view, and are approximately similar to each other. However, they are not limited to this, and the above shapes may be circular or approximately regular polygonal.

<Covering material 20>
The lid material 20 will be described with reference to the drawings. Fig. 4 is an enlarged cross-sectional view of the lid material 20 and the flange portion 13 of the container 100. The lid material 20 is disposed on the upper portion of the container body 10 and fitted onto the container body 10. As shown in Figs. 3 and 4, the lid material 20 has a lower resin sheet 50 and a backing portion 40.

As shown in Figures 2 and 3, the lower resin sheet 50 covers the upper end of the container body 10 and is sealed to the flange portion 13, sealing the storage space 10S of the container body 10. In the container 100, the lower resin sheet 50 is sealed when the contents S are stored in the storage space 10S of the container body 10.

As the lower resin sheet 50, a wide variety of resin films or laminates thereof having the functions required for sealing, such as sealing properties, water resistance, gas barrier properties, etc., can be used, such as PE resin and PE resin film, PET resin film, or laminates thereof. The lower resin sheet 50 is sealed to the flange portion 13 by, for example, heat sealing, but a sealing method other than heat sealing may also be used.

For example, fine paper, craft paper, imitation paper, coated paper, etc. are used as the mount part 40. The basis weight of the mount part 40 can be, for example, 100 g/m ² to 500 g/m ^2. The mount part 40 has greater rigidity than the upper resin sheet 30, and providing the mount part 40 makes it possible to arrange the containers 100 in a stacked manner.

The mount portion 40 has an outer frame portion 41 and an inner plate portion 42. A printed layer (not shown) may be provided on the upper surfaces of the outer frame portion 41 and the inner plate portion 42. The printed layer forms information about the contents S contained within the storage space 10S of the container body 10, a product image, etc. Note that if printing is not required, the printed layer may be omitted.

The outer frame 41 is annular and generally rectangular in shape with curved corners in a plan view. In other words, the outer frame 41 has a pair of opposing long sides 411 and a pair of short sides 412. The lower surface of the outer frame 41 may be held to the lower resin sheet 50 via a release agent layer made of a release agent. This can increase the rigidity of the lid 20. In addition, the outer portion of the lower resin sheet 50 is less likely to sag, which can improve the design of the container 100.

In the lid material 20, the inner plate portion 42 of the backing portion 40 has an adhesive portion 421 on its underside. The adhesive portion 421 is the entire underside of the inner plate portion 42. In this embodiment, the entire underside of the inner plate portion 42 is the adhesive portion 421, but this is not limited to this. For example, the center of the underside of the inner plate portion 42 may be the adhesive portion 421, and the periphery may be a non-adhesive region.

The inner plate portion 42 is annular and generally rectangular in shape with curved corners in a plan view. The inner plate portion 42 is larger than the bottom portion 11 and smaller than the opening 14. More specifically, the outer peripheral shape of the inner plate portion 42 is the same as the inner peripheral shape of a cross section parallel to the bottom portion 11 of the portion between the bottom portion 11 and the opening 14 of the container body 10.

A break line 43 is arranged between the outer frame portion 41 and the inner plate portion 42 of the mount portion 40, penetrating in the thickness direction. By forming the break line 43 in the mount portion 40, the outer frame portion 41 and the inner plate portion 42 are formed. By breaking the mount portion 40 along the break line 43, the outer frame portion 41 is separated. In other words, the outer peripheral shape of the inner plate portion 42 is approximately the same as the inner peripheral shape of the outer frame portion 41. Therefore, the inner plate portion 42 can be accommodated inside the outer frame portion 41.

The break line 43 has a connection portion 431. The connection portion 431 is a portion where the outer frame portion 41 and the inner plate portion 42 are connected. In other words, the connection portion 431 is a discontinuous portion of the break line 43, and is a so-called blade retaining portion. Note that the connection portion 431 is shown as a solid dot in FIG. 1, but in reality, it is a portion where the outer frame portion 41 and the inner plate portion 42 are connected, and is not limited to a dot shape. The connection portion 431 connects the outer frame portion 41 and the inner plate portion 42. Then, by cutting the connection portion 431 in the backing portion 40, the inner plate portion 42 is separated from the outer frame portion 41 along the break line 43.

The connection parts 431 are of a size that allows them to be easily cut without using a tool such as a blade when separating the inner plate part 42 from the outer frame part 41 at the break line 43. In the lid material 20, the connection parts 431 are provided at each corner of the inner plate part 42. However, this is not limited to this, and the number is not limited to four as long as the outer frame part 41 and the inner plate part 42 can be connected. In order to stably support the inner plate part 42 with the outer frame part 41, it is preferable that at least two connection parts 431 are provided. The lid material 20 has the configuration shown above.

Here, the operation of opening and resealing the container 100 will be described with reference to the drawings. FIG. 5 is an enlarged cross-sectional view of the container 100 with the lid 20 removed. FIG. 6 is an enlarged cross-sectional view of the container 100 when the lower resin sheet 50 is being opened. FIG. 7 is an enlarged cross-sectional view of the resealed container 100.

Note that while Figures 4 to 7 show a cross section of the short side 412 of the backing portion 40 of the lid material 20, the long side 411 also has a similar configuration. In the following explanation, the term "resealing" refers to attaching the lid material 20 so as to close again the storage space 10S of the container body 10 that was once opened by peeling the lower resin sheet 50 from the flange portion 13.

As shown in FIG. 4, in the container 100, the lower resin sheet 50 is sealed to the upper surface of the flange portion 13 of the container body 10, thereby sealing the opening 14 of the container body 10, and the storage space 10S is sealed by the lid material 20.

This prevents moisture, dust, dirt, and other foreign matter from entering the storage space 10S, making it possible to maintain a hygienic state when sealed. It also prevents air, water vapor, and other gases from within the storage space 10S from escaping to the outside. This prevents the contents S from drying out, and also prevents odors from leaking to the outside or being transferred to the contents S.

In addition, the lower resin sheet 50 is sealed to the flange portion 13 of the container body 10, so that the backing portion 40 is disposed on top of the flange portion 13. The backing portion 40 has a higher rigidity than the lower resin sheet 50. This increases the rigidity of the container 100 itself sealed with the lid material 20. As a result, even when the containers 100 are stacked one on top of the other, the lid material 20 is less likely to bend, and the upper container 100 is more likely to be stable. As a result, the containers 100 can be stacked for transportation, display, etc.

As shown in FIG. 5, the lower resin sheet 50 is peeled off from the flange portion 13, thereby removing the lid material 20 from the container body 10. This exposes the opening 14 to the outside, and the container 100 is opened. At this time, the inner plate portion 42 of the backing portion 40 is fixed to the lower resin sheet 50, and the outer frame portion 41 is connected to the inner plate portion 42 via the connection portion 431.

By opening the container body 10, the contents S stored inside the storage space 10S of the container body 10 can be removed to the outside through the opening 14. The lower resin sheet 50 is completely removed from the flange portion 13 of the container body 10.

Depending on the contents S, the remaining contents may be stored in the storage space 10S. In such a case, the lid 20 can be attached to the container body 10 to reseal the storage space 10S.

Below, resealing of the container body 10 with the lid material 20 will be explained with reference to the drawings. First, the backing paper portion 40 is divided into an outer frame portion 41 and an inner plate portion 42, and the outer frame portion 41 is separated from the lid material 20. To explain in more detail, the connection portion 431 is cut, and the outer frame portion 41 is separated from the inner plate portion 42 along the break line 43. In other words, the outer frame portion 41 is separated from the lid material 20. The outer frame portion 41 separated from the lid material 20 is not necessary.

As shown in FIG. 1 etc., the inner plate portion 42 is smaller than the opening 14. To explain further, the inner plate portion 42 has an outer peripheral shape that is the same as or approximately the same as the inner peripheral shape of a cross section parallel to the bottom portion 11 at an intermediate portion P1 (see FIG. 7) between the bottom portion 11 and the opening 14 in the vertical direction of the container body 10.

Therefore, the inner plate portion 42 to which the lower resin sheet 50 is fixed can be inserted into the container body 10 through the opening 14. The inner plate portion 42 is disposed in the middle portion P1. The lower resin sheet 50 is fixed to the underside of the inner plate portion 42 and is larger than the inner plate portion 42. Therefore, when the inner plate portion 42 of the lid material 20 is disposed inside the container body 10, the lower resin sheet 50 covers the underside of the inner plate portion 42 and is sandwiched between the outer periphery of the inner plate portion 42 and the inner periphery of the container body 10. The outer edge of the lower resin sheet 50 is disposed above the inner plate portion 42 (see FIG. 7).

In this manner, the storage space 10S of the container body 10 can be resealed using the inner plate portion 42 to which the lower resin sheet 50 of the lid material 20 is fixed. When the storage space 10S is resealed with the lid material 20, the lower resin sheet 50 adheres closely to the inner surface of the side wall portion 12 of the container body 10. This makes it possible to prevent foreign matter such as moisture (liquid), dust, and dirt from entering the storage space 10S when the storage space 10S of the container body 10 is resealed with the lid material 20.

By disposing the lower resin sheet 50 between the outer periphery of the inner plate portion 42 and the inner periphery of the side wall portion 12, the gas inside the storage space 10S is less likely to escape to the outside through the gap between the inner plate portion 42 and the side wall portion 12, so it is possible to prevent the contents S stored in the storage space 10S from drying out.

After the container body 10 is resealed with the lid material 20, the outer end of the lower resin sheet 50 of the lid material 20 is disposed above the inner plate portion 42. The outer end of the lower resin sheet 50 is not bonded to the side wall portion 12. Therefore, in the resealed container 100, the outer end of the lower resin sheet 50 can be pinched with fingers or the like. By pinching the outer end of the lower resin sheet 50 and lifting the lower resin sheet 50 upward, the lid material 20 can be removed from the container body 10, i.e., it can be opened again. In other words, the container 100 can be opened and resealed multiple times by using the lid material 20.

In addition, because the lid material 20 is resealable, the amount of resin waste can be reduced compared to a configuration that has a separate resin outer lid, thereby reducing the environmental burden.

<First Modification>
8 is an enlarged cross-sectional view showing the container 100A of the first modified example. FIG. 9 is an exploded perspective view of the container 100A of the first modified example. The container 100A shown in FIG. 8 and FIG. 9 is different from the container 100 shown in FIG. 1, FIG. 3, etc. in that the lid member 20A has an upper resin sheet 30. The container 100A has substantially the same structure as the container 100 in other respects. Therefore, the same reference numerals are given to the same parts of the container 100A as those of the container 100, and detailed description of the same parts is omitted. In FIG. 9, the adhesion state between the adhesive portion 413 formed on the upper surface of the outer frame portion 41 and the upper resin sheet 30 is shown by applying cross-hatching.

As shown in FIG. 8, the lid material 20A has an upper resin sheet 30 disposed on top of the backing portion 40. The upper resin sheet 30 is fixed to the outer frame portion 41 of the backing portion 40. Examples of the upper resin sheet 30 include films such as polyethylene (PE) resin film and polyethylene terephthalate (PET) resin film, or laminates thereof. In a plan view, the outer shape of the upper resin sheet 30 is the same as the outer shape of the outer frame portion 41. The upper resin sheet 30 overlaps the outer frame portion 41 vertically.

The outer frame portion 41 has an adhesive portion 413 on its upper surface. The upper resin sheet 30 is fixed to the adhesive portion 413. The upper resin sheet 30 and the outer frame portion 41 can be fixed to each other by, but not limited to, adhesive bonding. A wide variety of methods can be used to reliably fix the outer frame portion 41 and the upper resin sheet 30, such as heat sealing and hot melt.

As shown in FIG. 9 etc., in the container 100A, the entire upper surface of the outer frame portion 41 is the adhesive portion 413, but this is not limited to this. The adhesive portion 413 may be formed on only a portion of the upper surface of the outer frame portion 41. A wide variety of fixing methods can be used to reliably fix the upper resin sheet 30 to the outer frame portion 41.

As shown in FIG. 8, when the lid material 20A is sealed to the flange portion 13 of the container body 10, the upper surface of the mount portion 40 is covered with the upper resin sheet 30. This makes it possible to protect the print formed of images, letters, etc. on the upper surface of the mount portion 40. Furthermore, by providing the upper resin sheet 30, it is possible to increase the strength of the lid material 20A. For example, it is possible to prevent the outer frame portion 41 from being unintentionally separated during transportation, etc.

The upper surface of the inner plate portion 42 may be held to the upper resin sheet 30 via a release agent layer made of a release agent. In this way, the strength of the lid material 20A can be further increased.

<Second Modification>
FIG. 10 is a plan view showing a container 100B of the second modified example. FIG. 11 is an exploded perspective view of the container 100B of the second modified example. FIG. 12 is an enlarged cross-sectional view of a resealed container of the second modified example. The container 100B shown in FIGS. 10 to 12 is different from the container 100 shown in FIGS. 1, 3, etc. in that the outer frame portion 41B of the backing portion 40B of the lid member 20B is different from the outer frame portion 41 of the lid member 20 and has a protruding portion 44 protruding from the inner plate portion 42B. In other respects, the container 100B has substantially the same structure as the container 100. Therefore, the same reference numerals are given to the same parts of the container 100B as those of the container 100, and detailed descriptions of the same parts are omitted.

As shown in FIG. 10, the lid material 20B has protrusions 44 that protrude outward from the outer edge of the inner plate portion 42B. The protrusions 44 protrude outward from each side of the substantially rectangular inner plate portion 42B. That is, the lid material 20B is provided with four protrusions 44. The four inner plate portions 42B are arranged at intervals in the circumferential direction.

The protrusion 44 is rectangular in plan view. However, it is not limited to this, and examples of shapes include a shape that narrows toward the tip, a shape that widens, a curved shape, etc. The shape of the protrusion 44 is not particularly limited in plan view as long as it can be used as a grip when reopening after resealing, as described below. The protrusion 44 is not fixed to the lower resin sheet 50. Note that a release agent layer made of a release agent may be disposed between the protrusion 44 and the lower resin sheet 50, and the release agent layer may hold the protrusion 44 to the lower resin sheet 50.

The outer frame portion 41B has split frame portions 414 that are divided in the circumferential direction. The split frame portions 414 are disposed outside the inner plate portion 42B and are disposed between the circumferentially adjacent protrusions 44 so as to be adjacent to each of the protrusions 44. In other words, the outer frame portion 41B is disposed outside the inner plate portion 42B and is divided in the circumferential direction by the protrusions 44.

The split frame portion 414 is connected to the corner of the inner plate portion 42B via the connection portion 431, and is also connected to the protrusion portion 44 via the connection portion 432. This makes it difficult for the split frame portion 414 to be accidentally separated.

As shown in FIG. 11, the lid 20B is separated from the container body 10, the container 100 is opened, and then the divided frame portion 414 is removed from the lid 20B. As a result, in the lid 20B, the protruding portions 44 protrude outward from each side of the inner plate portion 42B. As shown in FIG. 11, the entire lower surface of the inner plate portion 42B and the protruding portions 44 are covered by the lower resin sheet 50.

The protruding portion 44 is not fixed to the lower resin sheet 50. Therefore, the protruding portion 44 is folded along the edge of the inner plate portion 42B independently of the lower resin sheet 50. A fold line for folding may be formed at the boundary between the protruding portion 44 and the inner plate portion 42B. An example of a fold line is one in which a notch is formed on the side opposite the folding direction, but is not limited to this. By pinching a part of the protruding portion 44 and bending it in the folding direction, a wide variety of fold lines can be used that allow accurate folding.

In addition, even if the protruding portion 44 is held to the lower resin sheet 50 via a release agent layer, the protruding portion 44 can be easily peeled off from the lower resin sheet 50. Therefore, the protruding portion 44 can be folded independently of the lower resin sheet 50.

With the protruding portion 44 folded upward, it is inserted into the storage space 10S through the opening 14 of the container body 10. With the protruding portion 44 extending upward along the inner circumferential surface of the side wall portion 12 of the container body 10, the inner plate portion 42B of the lid material 20B can reseal the container body 10 (see FIG. 12). The protruding portion 44 is independent of the lower resin sheet 50, and the user can pinch the protruding portion 44 with fingers, etc. By pinching the protruding portion 44 and lifting it upward, the inner plate portion 42B can be removed from the container body 10 and resealed. That is, with the lid material 20B, the protruding portion 44 can be used as a gripping portion for resealing when resealing, making resealing easy.

In this embodiment, the lid material 20B has four protrusions 44, but is not limited to this. It is sufficient that there is at least one protrusion that can be used as a gripping portion when reopening. It is preferable to have at least two protrusions 44 so that the resealed lid material 20B can be held and operated with both hands. Furthermore, it is preferable to have at least a pair of protrusions 44 arranged at a certain distance apart on the inner plate portion 42B.

For example, when there is one protruding portion 44, the outer frame portion 41B is annular with a discontinuous divided portion in the circumferential direction, in other words, arch-shaped. In this case, the outer frame portion 41B is not divided in the circumferential direction, but is divided in the circumferential direction by the protruding portion 44.

<Third Modification>
Fig. 13 is an exploded perspective view of a container 100C of the third modified example. The container 100C of the third modified example differs from the container 100B of the second modified example in that an upper resin sheet 30 is provided on the lid material 20C. The other parts of the container 100C have the same configuration as the container 100B, and the same reference numerals are used for substantially the same parts, and detailed description of the same parts is omitted. In Fig. 13, the parts fixed by adhesive are cross-hatched.

As shown in FIG. 13, the lid material 20C has an upper resin sheet 30. The upper resin sheet 30 has the same configuration as the upper resin sheet 30 of the lid material 20A of the first modified example, and detailed description will be omitted. As shown in FIG. 13, the divided frame portion 414 of the outer frame portion 41B is fixed to the lower surface of the upper resin sheet 30. The fixing of the divided frame portion 414 to the upper resin sheet 30 is similar to the fixing of the outer frame portion 41 to the upper resin sheet 30 in the first modified example, and detailed description will be omitted.

In this way, by adhering the divided frame portions 414 to the upper resin sheet 30, the four divided frame portions 414 are connected and integrated by the upper resin sheet 30. Therefore, it is possible to separate the four divided frame portions 414 as a unit from the lid material 20C. This makes it easier to separate the outer frame portion 41B from the lid material 20C.

The present invention is not limited to the above-mentioned configuration, and various modifications are possible. Configurations obtained by appropriately combining the technical means disclosed in different configurations are also included in the technical scope of the present invention.

The present invention can be used as a container that can hold food and other contents and has a lid that can be opened and closed multiple times.

REFERENCE SIGNS LIST 100 Container 10 Container body 10S Storage space 11 Bottom 12 Side wall 13 Flange 14 Opening 20 Lid 30 Upper resin sheet 40 Mount 41 Outer frame 411 Long side 412 Short side 413 Adhesive 414 Divided frame 41B Outer frame 42 Inner plate 421 Adhesive 43 Fracture line 431 Connection 432 Connection 44 Protrusion 50 Lower resin sheet 100A Container 20A Lid 100B Container 20B Lid 40B Mount 42B Inner plate 100C Container 20C Lid P1 Middle portion S Contents

Claims (7)

A cylindrical container body with a bottom;
A lid member that is fitted onto the upper end of the container body,
The container body includes:
The bottom and
a flange portion disposed above the bottom portion and having an opening having an area larger than that of the bottom portion;
A cylindrical side wall portion connecting the bottom portion and the flange portion,
The lid material is
a lower resin sheet that is sealed to the flange portion;
A paper mount portion disposed on an upper portion of the lower resin sheet,
The mount portion is
A separably arranged annular outer frame portion;
an inner plate portion disposed inside the outer frame portion and fixed to an upper surface of the lower resin sheet;
A container in which the inner shape of the outer frame portion is the same as the inner peripheral shape of a cross section parallel to the bottom of the portion between the bottom and the flange of the side wall portion in the vertical direction. The cover material has a break line adjacent to an inner periphery of the outer frame portion and penetrating the backing portion,
The breaking line has a connection portion that does not penetrate a part of the breaking line and holds the outer frame portion,
The container according to claim 1 , wherein the outer frame is separated by breaking along the break line. The container according to claim 1 or 2, wherein the lid member has at least one protruding portion that protrudes outward from a portion inside the outer frame portion to be separated. The container according to claim 3, wherein the outer frame portion has a divided frame portion that is divided in the circumferential direction by the protrusion. An upper resin sheet is further provided above the mount portion,
The container according to claim 1 , wherein the outer frame portion is fixed to the upper resin sheet. The container according to claim 5, wherein the inner plate portion is releasably held by a release agent layer disposed between the inner plate portion and the upper resin sheet. A container according to any one of claims 1 to 6, in which the outer frame is releasably held by a release agent layer disposed between the outer frame and the lower resin sheet.