JP2015117034A - Package - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a package which enables reduction of a material used for production.SOLUTION: A package 1 includes: a tray 20 on which a content is placed; and a bag 10 which wraps the tray 20. The tray 20 includes: a storage part 30; a first flange 41; and a second flange 42. The first flange 41 is formed at a part of a side wall 31 of the storage part 30. The second flange 42 is formed at a part of the side wall 31 of the storage part 30 which faces the part at which the first flange 41 is formed. A part of the bag 10 is sealed by a top surface 31A of the side wall 31 thereby causing an opening part 33 of the storage part 30 to be closed by the bag 10.

Description

  The present invention relates to a package including a tray on which contents are placed and a bag for packaging the tray.

  According to an example of the package, an opening of a tray on which food is placed is sealed with a sheet, the tray is packaged with a bag, and the opening of the bag is sealed. The sheet has a role of sealing a space formed in the tray and confining foods placed on the tray in this space. The bag has a role of packaging the tray and an object for printing an indication regarding the contents. Note that Patent Document 1 discloses one specific example of such a package.

JP 2003-54444 A

  The size of the bag of the package is set mainly from the viewpoint of whether or not the tray can be appropriately accommodated and whether or not the material used for manufacturing the bag is not wasted. On the other hand, the inventor of the present application considered that it is preferable to review not only the bag that is a part of the package but also the structure of the entire package in order to further reduce the material used for manufacturing the package.

  It is an object of the present invention to provide a package that uses less material for manufacturing.

  [1] According to an independent form of the present package, the package includes a tray on which contents are placed and a bag for packaging the tray, wherein the tray includes a receiving portion, a first flange, and a first Two flanges, wherein the first flange is formed on a part of the side wall of the housing part, and the second flange is formed on the part of the side wall of the housing part on which the first flange is formed. Formed in a part facing each other and having a structure separated from or continuous with the first flange, and the bag is sealed to the top surface of the side wall, whereby the opening of the housing portion is closed by the bag. Has been.

  According to this package, the bag accommodates the tray and closes the opening of the accommodating portion. That is, the bag has a role of wrapping the tray and a role of sealing the opening of the accommodating portion. For this reason, the opening part of an accommodating part is sealed with a sheet | seat, and also the material to be used decreases compared with the package where this accommodating part was packaged with the bag.

  According to this package, the following effects can be further obtained. When this package is heated, water vapor is generated from the contents such as food stored in the storage section. Since the opening portion of the housing portion is closed by the bag, when water vapor is generated from the contents, the pressure inside the housing portion gradually increases. As the pressure inside the storage portion increases, the portion of the bag that closes the storage portion expands. For this reason, the force which is going to peel a seal | sticker acts on the part by which the bag and the top | upper surface were sealed.

  And by this force, a part of part which the bag and the top | upper surface were sealed peels. Thereby, the water vapor | steam confined inside the accommodating part flows into the exterior of the tray in the inside of a bag. For this reason, the pressure inside the bag increases.

  As the pressure inside the bag rises, a force based on the principle of the second type lever acts on the portion where the bag and the top surface are sealed. The second type lever here is formed as follows on at least one of the first flange side and the second flange side.

  A portion of the bag facing the first flange or the second flange receives a pressure inside the bag to form a force point. The tip of the first flange or the second flange is in contact with a part of the bag as the bag expands to form a fulcrum. A portion where the top surface and the bag existing near the root of the first flange or the second flange are sealed receives a force for peeling the seal, thereby forming an action point.

  For this reason, compared with the case where the 1st flange and the 2nd flange are not formed, the part by which the bag and the top | upper surface were sealed becomes easy to peel by the heating of a package. For this reason, it becomes difficult to produce the situation where it is difficult to take out the tray from the bag.

  [2] According to an embodiment dependent on the package, at least one of a length from the root to the tip of the first flange and a length from the root to the tip of the second flange is the top surface of the top surface. Longer than the width.

  According to this package, in the case where the length from the root to the tip of the first flange is longer than the width of the top surface, compared with the case where such a length relationship is not formed, The distance between the power point and the fulcrum increases. In addition, when the length from the root to the tip of the second flange is longer than the width of the top surface, the distance between the power point and the fulcrum in the second type lever is similarly increased. For this reason, the portion where the bag and the top surface are sealed becomes easier to peel off.

  [3] According to one aspect dependent on the package, a cut-out portion for giving an opportunity to cut out a part of the bag is formed in the bag, and the first flange or the second flange is a part of the bag. Facing.

  When this package is heated, the temperature of the first flange or the second flange is less likely to be higher than the accommodating portion formed on the tray. For this reason, the user hardly feels heat in the hand when pulling out the tray by grasping the first flange or the second flange and taking out the tray from the bag. For this reason, as a package, when a bag is opened, it is preferable that a 1st flange or a 2nd flange exists in the location where a user is easy to grasp.

  According to this package, when a part of the bag is cut out through the cut-out portion, an opening is formed in the bag. On the other hand, the first flange or the second flange faces a part of the bag in a state before the part of the bag is cut off. For this reason, when an opening is formed in the bag, the first flange or the second flange faces the outside of the bag through the opening. For this reason, the user can easily grasp the first flange or the second flange.

  [4] According to one aspect dependent on the package, the top surface of the first flange is formed on the bottom side of the housing portion with respect to the top surface of the side wall existing at the root of the first flange. Accordingly, the first step structure in which a step is formed between the top surface of the first flange and the top surface of the side wall, and the top surface of the second flange is the root of the second flange. A step is formed between the top surface of the second flange and the top surface of the side wall. At least one of the two-step structure is included.

  When the first step structure is not included, the first flange may be in close contact with the bag due to water vapor flowing out between the bag and the top surface of the side wall. Further, when the second step structure is not included, the second flange may be in close contact with the bag due to water vapor flowing out between the bag and the top surface of the side wall. When the bag is in close contact with the first flange or the second flange, it is difficult to form the second kind leverage. For this reason, the force based on the principle of the second type lever makes it difficult to obtain an effect of peeling off the portion where the bag and the top surface are sealed.

  According to this package, since at least one of the first step structure and the second step structure is included, at least one of the first flange and the second flange is difficult to adhere to the bag. For this reason, it is easy to obtain the effect of peeling the portion where the bag and the top surface are sealed by the force based on the principle of the second type lever.

  [5] According to one aspect dependent on the package, the shape of the accommodating portion in plan view is a square shape, the first flange is formed on one side of the accommodating portion, and the second flange is It is formed on one side opposite to one side of the housing portion.

  [6] According to one aspect dependent on the package, the food as the contents is placed on the tray.

  This package uses less material for manufacturing.

The top view of the package of embodiment. Sectional drawing which follows the D2-D2 line | wire of FIG. The top view of the tray of embodiment. The side view of the tray of embodiment. It is sectional drawing which follows the D2-D2 line | wire of FIG. 1, and sectional drawing which shows the state which the part which obstruct | occludes the opening part of the tray of a bag expanded. It is sectional drawing which follows the D2-D2 line | wire of FIG. 1, and sectional drawing which shows the state which a part of inner seal part peeled. It is sectional drawing which follows the D2-D2 line | wire of FIG. 1, and sectional drawing which shows the state which all the inner seal parts peeled. It is sectional drawing which follows the D2-D2 line | wire of FIG. 1, and sectional drawing which shows the state which a part of outer seal | sticker part peeled. It is sectional drawing which follows the D2-D2 line | wire of FIG. 1, and sectional drawing which shows the state from which a part of bag was cut off. It is sectional drawing which follows the D2-D2 line | wire of FIG. 1, and sectional drawing which shows the state from which a tray is taken out from a bag.

The configuration of the package 1 will be described with reference to FIG.
The package 1 is an aggregate of a plurality of components, and includes a bag 10 and a tray 20 as an example. The bag 10 has a role of accommodating the tray 20 therein. The bag 10 is formed by heat-sealing the edges of two laminated sheets that are overlapped with each other. The dots on the edge of the bag 10 in FIG. 1 indicate the outer seal portion 14 that is a portion where the laminated sheets are heat sealed.

  The seal strength of the outer seal portion 14 can have any seal strength. An example of a preferable range of the seal strength of the outer seal portion 14 is 8 N / 15 mm or more and 13 N / 15 mm or less. The seal strength of the outer seal portion 14 of the package 1 is 9 N / 15 mm.

  Two notches 11 are formed in the outer seal portion 14 of the bag 10. A guide wire 12 is formed between two notches 11 in the bag 10. Each of the two notches 11 and the guide line 12 form a cut-out portion.

  As an example, the structure (not shown) of the laminated sheet forming the bag 10 is a three-layer structure in which the outermost layer, the intermediate layer, and the innermost layer are laminated. An example of the material of the outermost layer is polyethylene terephthalate. As an example, the intermediate layer has a structure in which a printing layer, a first adhesive layer, a low density polyethylene layer, and a second adhesive layer are laminated. The intermediate layer has a function of bonding the outermost layer and the innermost layer to each other. The printed layer is printed with a picture, a text describing a product, and the like on the outer surface. The first adhesive layer is formed inside the printing layer. The low density polyethylene layer is formed inside the first adhesive layer. The second adhesive layer is formed inside the low density polyethylene layer.

  The innermost layer is formed inside the second adhesive layer. An example of the material of the innermost layer is a mixed resin. The mixed resin includes linear low density polyethylene, low density polyethylene, and polybutene-1. An example of the ratio of the linear low density polyethylene contained in the mixed resin is 20% by weight. An example of the ratio of the low density polyethylene contained in the mixed resin is 60% by weight. An example of the mixed resin contains 20% by weight of polybutene-1.

The configuration of the tray 20 will be described with reference to FIG.
The tray 20 includes a storage portion 30 and a flange 40. Each of the accommodating portion 30 and the flange 40 constitutes a part of the tray 20 that is one object. The tray 20 is formed by vacuum forming a mixed resin. As an example, the mixed resin includes polypropylene and talc. An example of the proportion of polypropylene contained in the mixed resin is 70% by weight. An example of the ratio of talc contained in the mixed resin is 30% by weight.

  The accommodating part 30 includes a side wall 31, a bottom wall 32, and an opening part 33. Each of the side wall 31, the bottom wall 32, and the opening 33 constitutes a part of the accommodating portion 30 that is one object. The side wall 31 and the bottom wall 32 form an accommodation space 34. Shumai, which is an example of the content 100, is housed in the housing space 34 by being placed on the bottom wall 32.

  The top surface width dimension LT which is the width of the top surface 31 </ b> A of the side wall 31 has a substantially constant length over the entire circumference of the side wall 31. The top surface 31A is heat-sealed with the inner surface of the bag 10 over the entire circumference. For this reason, the opening 33 is closed by a part of the bag 10. The dots on the top surface 31A in FIG. 1 indicate the inner seal portion 15 that is a portion where the top surface 31A and the inner surface of the bag 10 are heat-sealed.

  The seal strength of the inner seal portion 15 can have any seal strength. An example of a preferable range of the seal strength of the inner seal portion 15 is 6 N / 15 mm or more and 10 N / 15 mm or less. The seal strength of the inner seal portion 15 of the package 1 is 6 N / 15 mm.

FIG. 3 shows a plan view of the single tray 20.
The bottom wall 32 includes a portion having an uneven surface on the inner surface, a bottom wall convex portion 32A, and a portion having an uneven surface on the outer surface. The portion of the inner surface processed to be uneven includes a large number of minute protrusions protruding toward the accommodation space 34 side. This portion serves as a slip stopper for the contents 100 (see FIG. 1). The bottom wall convex portion 32A is one large convex portion that protrudes toward the accommodation space 34 side. The bottom wall protrusion 32A has a role of making it difficult for moisture and oil to adhere to the content 100 (see FIG. 1). The portion of the outer surface that has been processed to be uneven includes a number of minute protrusions that protrude toward the installation surface side of the tray 20. This portion has a role of making it difficult for moisture present on the installation surface of the tray 20 to adhere to the outer surface of the bottom wall 32.

  The flange 40 is formed over the entire outer periphery of the upper portion of the side wall 31. The flange 40 includes a first flange 41, a second flange 42, and two intermediate flanges 43. The first flange 41, the second flange 42, and the two intermediate flanges 43 each constitute a part of the flange 40 that is an annular flange.

  The first flange 41 protrudes outward in the lateral direction of the tray 20 from one of the pair of side walls 31 extending in the longitudinal direction. The first flange 41 faces a part of the outer seal portion 14 (see FIG. 1). Convex part 41B. The first flange 41 is formed. The convex portion 41 </ b> B protrudes upward from the tray 20. The convex portion 41B has a role for the user to place a finger.

  The first flange 41 has an anti-slip process on the top surface 41A. The top surface 41 </ b> A is formed closer to the bottom wall 32 than the top surface 31 </ b> A of the side wall 31. For this reason, as shown in FIG. 4, a stepped portion 35 having a first stepped structure is formed between the top surface 41A and the top surface 31A.

  The first flange dimension FA, which is the length from the root to the tip of the first flange 41, is preferably set from the following side surface as an example. When the first flange dimension FA is short, the distance between the fulcrum and the power point becomes short when the tip of the first flange 41 forms the second kind of fulcrum. For this reason, it is difficult for the force acting on the action point based on the principle of the second type lever to have a preferable magnitude. On the other hand, when the first flange dimension FA is long, the size of the package 1 may become excessively large. From these matters, the first flange dimension FA is included in a range in which a force having a preferred magnitude acts on the action point and the package 1 can take a preferred size on the basis of the second type lever principle. preferable.

  The height of the stepped portion 35, that is, the first step size LA that is the distance between the top surface 41A and the top surface 31A is preferably set from the following side surface as an example. When the first step dimension LA is short, the top surface 41A can easily come into contact with the inner surface of the bag 10. When the top surface 41A is in contact with the inner surface of the bag 10 when the package 1 is heated, the tip of the first flange 41 is unlikely to form the second kind of fulcrum. On the other hand, when the first step dimension LA is long, the top surface 41A is unlikely to contact the inner surface of the bag 10 when the package 1 is heated. For this reason, it is difficult for the tip of the first flange 41 to form the fulcrum of the second kind. From these matters, it is preferable that the first step dimension LA is included in a range in which the tip of the first flange 41 can easily form the fulcrum of the second kind.

  The second flange 42 protrudes outward in the short direction of the tray 20 from the other of the pair of side walls 31 extending in the longitudinal direction. The second flange 42 has an anti-slip process on the top surface 42A. The top surface 42A is formed closer to the bottom wall 32 than the top surface 31A of the side wall 31. For this reason, as shown in FIG. 4, a stepped portion 36 having a second stepped structure is formed between the top surface 42A and the top surface 31A.

  The second flange dimension FB, which is the length from the root to the tip of the second flange 42, is preferably set based on the same design concept as the first flange dimension FA. The height of the stepped portion 36, that is, the second step size LB that is the distance between the top surface 42A and the top surface 31A is preferably set based on the same design concept as the first step size LA.

  One of the intermediate flanges 43 protrudes outward in the short direction of the tray 20 from one of the pair of side walls 31 extending in the short direction. The intermediate flange 43 connects one end of the first flange 41 and one end of the second flange 42 to each other.

  The other of the intermediate flanges 43 protrudes outward in the short direction of the tray 20 from the other of the pair of side walls 31 extending in the short direction. The intermediate flange 43 connects the other end of the first flange 41 and the other end of the second flange 42 to each other.

Specific examples of the dimensions of the flange 40 will be described.
As an example, the first flange dimension FA is longer than the first step dimension LA and the top surface width dimension LT. As an example, the second flange dimension FB is longer than the second step dimension LB and the top surface width dimension LT. According to this package 1, the first flange dimension FA and the second flange dimension FB have the same length.

  Each of the first flange dimension FA and the second flange dimension FB can have an arbitrary length. An example of a preferable range of the first flange dimension FA and the second flange dimension FB is 10 mm or more and 30 mm or less. The flange dimensions FA and FB of the package 1 are 20 mm.

  The flange intermediate dimension FC, which is the length from the root to the tip of the intermediate flange 43, is shorter than the first flange dimension FA, the second flange dimension FB, and the top surface width dimension LT. The flange intermediate dimension FC can have any length. An example of a preferable range of the flange intermediate dimension FC is included in a range below the lower limit in the preferable ranges of the flange dimensions FA and FB.

A method of using the package 1 will be described with reference to FIGS.
When the package 1 is heated, water vapor is generated from the contents 100. Since the opening 33 of the housing part 30 is closed by a part of the bag 10, when the water vapor is generated, as shown in FIG. 5, a part of the bag 10 closing the opening 33 is expanded, The internal pressure of the accommodating portion that is the pressure of the accommodating space 34 increases. On the other hand, the pressure outside the tray 20 inside the bag 10 does not substantially change.

  As the internal pressure of the accommodating portion increases, the force for peeling the inner seal portion 15 increases. When a part of the inner seal portion 15 is peeled off, the water vapor in the accommodation space 34 flows to the outside of the accommodation space 34. For this reason, as shown in FIG. 6, the portion of the bag 10 between the inner seal portion 15 and the outer seal portion 14 also expands, and the bag internal pressure, which is the pressure inside the bag 10, begins to rise. 6 shows a state in which a part of the inner seal portion 15 has been peeled off at any location other than the cross section shown in FIG. Further, FIG. 6 shows a state in which a part of the bag 10 facing the first flange 41 and a part of the bag 10 facing the second flange 42 are expanded more than in FIG. 5. .

  As the bag internal pressure rises, a force based on the second type lever principle acts on the inner seal portion 15. The second type lever here is formed on the first flange 41 side as follows. The second type lever is similarly formed on the second flange 42 side.

  A portion of the bag 10 facing the first flange 41 receives a pressure inside the bag to form a force point. The tip of the first flange 41 comes into contact with a part of the bag 10 as the bag 10 expands to form a fulcrum. The inner seal portion 15 existing in the vicinity of the root of the first flange 41 receives a force for peeling the seal, thereby forming an action point.

  When the force based on the principle of the second type lever acts on the inner seal portion 15, as an example, the entire inner seal portion 15 is peeled off. For this reason, as shown in FIG. 7, the tray 20 is completely separated from the bag 10, and falls on the inner surface of the bag 10 existing on the dish (not shown) of the microwave oven as the installation surface of the package 1 by gravity. To do.

  As the bag internal pressure further increases, a part of the outer seal portion 14 is peeled off as shown in FIG. FIG. 8 shows, as an example, a state where a portion of the outer seal portion 14 facing the first flange 41 is peeled off. When a part of the outer seal portion 14 is peeled off, water vapor flows to the outside of the bag 10. For this reason, it is suppressed that the outer seal | sticker part 14 peels rapidly with the raise of a bag internal pressure, and a loud sound is generated with peeling.

  After the heating of the package 1 is finished, the user holds the outer seal portion 14 of the bag 10 and takes the heated package 1 out of the microwave oven. Then, the user cuts a part of the bag 10 along the notch 11 and the guide line 12. Therefore, an opening 13 is formed in the bag 10 as shown in FIG.

  The first flange 41 faces a part of the bag 10 in a state before a part of the bag 10 is cut along the notch 11 and the guide line 12. For this reason, when the opening 13 is opened, the first flange 41 faces the outside of the bag 10 through the opening 13.

  For this reason, the user can easily grasp the first flange 41. As shown in FIG. 10, the tray 20 with the first flange 41 gripped by the user is taken out of the bag 10 while being dragged by the user.

According to the package 1, the following operations and effects can be obtained.
(1) The bag 10 accommodates the tray 20 and closes the opening 33 of the accommodating portion 30. That is, the bag 10 has a role of packaging the tray 20 and a role of sealing the opening 33 of the storage unit 30. For this reason, the opening part 33 of the accommodating part 30 is sealed with a sheet | seat, and the material to be used decreases compared with the virtual package which this accommodating part 30 was wrapped with the bag.

  (2) At least one of the first flange 41 and the second flange 42 can form the second type lever. For this reason, compared with the case where these flanges are not formed, the inner seal portion 15 is easily peeled off by heating the package 1. For this reason, it becomes difficult to produce the situation where it is difficult to remove the tray 20 from the bag 10.

  (3) The first flange dimension FA and the second flange dimension FB are longer than the top surface width dimension LT. For this reason, compared with the case where the relationship of such length is not formed, the distance of the power point and fulcrum in a 2nd type lever becomes long. For this reason, the inner seal portion 15 is more easily peeled off.

  (4) When the package 1 is heated, the temperature of the first flange 41 and the second flange 42 is less likely to be higher than the accommodating portion 30 of the tray 20. For this reason, the user hardly feels the heat in the hand when pulling out the tray 20 by grasping the first flange 41 or the second flange 42 and taking out the tray 20 from the bag. For this reason, as the package 1, when the opening 13 is formed in the bag 10, it is preferable that the 1st flange 41 or the 2nd flange 42 exists in the location where a user is easy to grasp.

  According to the package 1, the opening 13 is formed in the bag 10 when a part of the bag 10 is cut through the notch 11 and the guide wire 12 that are cut-out portions. On the other hand, the first flange 41 faces the same part in a state before a part of the bag 10 is cut off. For this reason, when the opening 13 is formed in the bag 10, the first flange 41 faces the outside of the bag 10 through the opening 13. For this reason, the user can easily grasp the first flange 41.

  (5) When the first step structure is not included, the first flange 41 may be in close contact with the bag 10 due to water vapor flowing from between the bag 10 and the top surface 31 </ b> A of the side wall 31. Further, when the second step structure is not included, the second flange 42 may be in close contact with the bag 10 due to water vapor flowing out between the bag 10 and the top surface 31 </ b> A of the side wall 31. When the bag 10 is in close contact with the first flange 41 or the second flange 42, it is difficult to form the second kind of lever. For this reason, it is difficult to obtain the effect of peeling off the sealed portion of the bag 10 and the top surface 31A by the force based on the principle of the second type lever.

  According to this package, since the first step structure and the second step structure are included, the first flange 41 and the second flange 42 are difficult to adhere to the bag 10. For this reason, it is easy to obtain the effect of peeling the portion where the bag 10 and the top surface 31A are sealed by the force based on the principle of the second type lever.

  (6) The entire circumference of the top surface 31 </ b> A of the side wall 31 is sealed with the inner surface of the bag 10. For this reason, compared with the case where it is not sealed in that way, the content 100 is hard to leak from the accommodating part 30. FIG.

  (7) In the package 1, the seal strength of the inner seal portion 15 is lower than the seal strength of the outer seal portion 14. For this reason, the bag 10 is easily peeled off from the top surface 31 </ b> A as compared with the configuration in which the seal strength of the inner seal portion 15 is higher than the seal strength of the outer seal portion 14. For this reason, it can suppress that the bag 10 and the top | upper surface 31A are sealed after completion | finish of the heating of the package 1. FIG.

  (8) The bag 10 becomes difficult to peel off from the top surface 31A as the sealing strength with the top surface 31A increases. The package 1 may generate a sound when the bag 10 peels from the top surface 31A. This sound increases as the internal pressure of the container when the bag 10 peels from the top surface 31A is high.

  In this regard, in the package 1, the sealing strength between the bag 10 and the top surface 31 </ b> A is lower than the sealing strength of the outer edge of the bag 10. For this reason, compared with the structure where the sealing strength of the bag 10 and the top surface 31A is higher than the sealing strength of the outer edge of the bag 10, the internal pressure of the container when the bag 10 peels from the top surface 31A is small. For this reason, the sound when the bag 10 peels from the top surface 31A is reduced.

  (9) When the package 1 is heated, water vapor generated from the contents 100 accumulates at the bottom of the bag 10. For this reason, the bottom of the bag 10 and the bottom wall 32 of the tray 20 may adhere to each other due to moisture. When the bottom of the bag 10 and the bottom wall 32 are in close contact, the tray 20 is difficult to be removed from the bag 10.

  In the package 1, since the uneven surface is provided on the outer surface of the bottom wall 32, it is difficult for the bottom of the bag 10 and the bottom wall 32 to adhere to each other when moisture is present at the bottom of the bag 10. For this reason, the possibility that the package 1 is difficult to remove the tray 20 from the bag 10 is reduced.

  (10) The package 1 has an advantageous effect over the package (hereinafter referred to as “comparison package”) disclosed in Japanese Patent Application Laid-Open No. 2011-240954. The comparison package has a tray and a tray seal. The tray seal closes the opening of the tray.

  In the comparative package, the range in which the description of the product can be described is limited to the area of the tray seal. In other words, it is difficult for the comparative package to describe the description of the product beyond the range where the tray opening is formed.

  On the other hand, the package 1 can describe the description of the product in the bag 10 that encloses the tray 20. For this reason, the package 1 can describe the description of the product in a wider range than the range in which the opening 33 is formed.

  In addition, the specific form which this package can take is not limited to the form illustrated by the said embodiment. This package can take various forms different from the above-described embodiments as long as the object of the present invention is achieved. The modifications of the embodiment described below are examples of various forms that the present package can take.

  -According to the modification of tray 20 of an embodiment, it replaces with flange 40 and a plurality of flanges separated from each other are formed. An example of the plurality of flanges is a first deformation flange and a second deformation flange. The first deformation flange has a structure according to the first flange 41. The second deformation flange has a structure according to the second flange 42. A preferable range of the dimension in the longitudinal direction of each deformation flange is equal to or less than the dimension in the longitudinal direction of the housing part 30 and 30% or more of the dimension in the longitudinal direction of the housing part 30.

  The tray 20 of the above modification can be further modified as follows. That is, in addition to the first and second deformation flanges, third and fourth deformation flanges are formed. The third and fourth deformation flanges have a structure similar to that of the intermediate flange 43, and are not continuous with the first and second deformation flanges.

-According to the modification of the tray 20 of the embodiment, at least one of the first flange dimension FA and the second flange dimension FB is shorter than the top surface width dimension LT.
-According to the modification of the tray 20 of the embodiment, the first flange dimension FA and the second flange dimension FB are different from each other. In this case, the first flange dimension FA, which is the length of the first flange 41 facing the opening 13 of the bag 10, is preferably longer than the second flange dimension FB.

  -According to the modification of the first flange 41 of the embodiment, the position of the top surface 41A in the height direction of the tray 20 is equal to or higher than the top surface 31A of the side wall 31. Note that the same deformation is established for the second flange 42.

-According to the modification of the accommodating part 30 of embodiment, the shape of the accommodating part 30 in planar view is a square, circular, or a shape similar to these shapes.
-According to the modification of the side wall 31 of the embodiment, a part of the top surface 31A is not sealed with the bag 10. The size of the portion where the top surface 31 </ b> A and the bag 10 are not sealed to each other is preferably selected within a range in which the content 100 does not spill out of the tray 20.

  -According to the modification of the bag 10 of embodiment, at least one of the notch 11 and the guide wire 12 is abbreviate | omitted.

  DESCRIPTION OF SYMBOLS 1 ... Package, 10 ... Bag, 11 ... Notch 11 ... Guide wire 12 ... Opening, 14 ... Outer seal part, 15 ... Inner seal part, 20 ... Tray, 30 ... Storage part, 31 ... Side wall, 31A ... Top surface, 32 ... Bottom wall, 32A ... Bottom wall convex part, 33 ... Opening part, 34 ... Housing space, 35 ... Step part, 36 ... Step part, 40 ... Flange, 41 ... First flange, 41A ... Top surface, 41B ... Convex part 42 ... 2nd flange, 42A ... Top surface, 43 ... Intermediate flange, 100 ... Contents.

Claims (6)

A package including a tray on which contents are placed and a bag for packaging the tray;
The tray includes a receiving portion, a first flange, and a second flange;
The first flange is formed on a part of the side wall of the housing;
The second flange is formed on a part of the side wall of the housing portion facing the part where the first flange is formed, and has a structure separated from or continuous with the first flange.
A package in which the opening of the housing portion is closed by the bag because the bag is sealed to the top surface of the side wall. The package according to claim 1, wherein at least one of a length from the root to the tip of the first flange and a length from the root to the tip of the second flange is longer than a width of the top surface. A cut-out portion that gives an opportunity to cut out a part of the bag is formed in the bag,
The package according to claim 1, wherein the first flange or the second flange faces a part of the bag. The top surface of the first flange is formed on the bottom side of the housing portion with respect to the top surface of the side wall present at the base of the first flange, so that the top surface of the first flange and the side wall of the side wall A first step structure, which is a structure in which a step is formed between the top surface,
and,
Since the top surface of the second flange is formed on the bottom side of the housing portion with respect to the top surface of the side wall existing at the root of the second flange, the top surface of the second flange and the side surface of the side wall are formed. The package according to any one of claims 1 to 3, including at least one of a second step structure having a step formed between the top surface and the top surface. The shape of the accommodating portion in plan view is a quadrangular shape,
The first flange is formed on one side of the accommodating portion;
The package according to any one of claims 1 to 4, wherein the second flange is formed on one side facing one side of the housing portion. The package as described in any one of Claims 1-5 in which the foodstuff as the said content is mounted in the said tray.