JP2019051990A - container - Google Patents

Abstract

To provide a container capable of being manufactured more efficiently.SOLUTION: A container A1 comprises: a base material 1 having an outer surface 11 and an inner surface 12; and a film 7 fixed to the inner surface 12 of the base material 1 and defining a storage space 6 sealed at a bottom side in a depth direction and openable at a top side. The base material 1 includes: a plurality of side wall parts 2 surrounding the storage space 6 in the depth direction view; a plurality of main folding lines 31 forming a boundary of the two side wall parts; and one or more notches 51 and 52 touched at least one of the plurality of main folding lines 31 and covered by the film 7.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a container having a base material and a film.

  Containers for packaging contents have been proposed in various configurations depending on the type of contents, conveyance, display, specifications, and the like. Patent Document 1 discloses an example of a conventional container. The container disclosed in this document has a mount and a film. The mount is made of cardboard or cardboard, for example. The film is bonded to the inner surface of the mount, defines a storage space, and seals the bottom and sides of the storage space. The mount is formed by appropriately bending a flat mount material, and a plurality of fold lines are formed. The mount includes a plurality of side wall portions that surround the accommodation space in the depth direction of the accommodation space, and a bottom portion that is connected to the bottom ends of these side wall portions.

  Since the storage space is hermetically sealed by the film, it is possible to store a liquid containing content. Further, by returning the folding line of the mount to a flat state, it is possible to realize a state in which the contents are placed on the film laminated on the mount (mounting material). This is suitable for applications where, for example, a plurality of users pick and take the contents little by little.

JP 2006-335361 A

  However, the mount is required to return to a flat state again after being bent once. For this reason, it is preferable that the mount (container) is formed only by folding the mount material. In this case, a considerable number of fold lines are provided in order to form the above-mentioned plurality of side wall portions and bottom portions on the mount. The folding process for forming these folding lines becomes more difficult as the number of folding lines increases and the adjacent folding lines are closer to each other. For this reason, manufacturing a container efficiently is inhibited.

  The present invention has been conceived under the circumstances described above, and an object thereof is to provide a container that can be more efficiently manufactured.

  The container provided by the present invention is fixed to the inner surface of the base material that defines a base material having an outer surface and an inner surface, and a storage space in which the bottom side in the depth direction is sealed and the top side can be opened. A plurality of side walls that surround the accommodation space in the depth direction, a plurality of main fold lines that form boundaries of the side walls, and the plurality of side walls. And one or more notches that are in contact with at least one of the main folding lines and are covered with the film.

  In a preferred embodiment of the present invention, the plurality of side wall portions include a plurality of main side wall portions and a sub side wall portion disposed between the adjacent main side wall portions, wherein the sub side wall portion is a sub side wall portion. The main side wall portions adjacent to each other are approaching each other by being bent at the fold line.

  In a preferred embodiment of the present invention, the one or more notches include one positioned on the bottom side with respect to the sub-side wall and in contact with both the adjacent main fold lines.

  In a preferred embodiment of the present invention, the main fold line and the sub fold line are folded along a main fold easy line and a sub fold easy line formed on the base material.

  In a preferred embodiment of the present invention, the pair of main fold lines positioned with the sub-side wall portion interposed therebetween are a first main fold line having a relatively high bending strength and a relatively weak bending strength. A second main fold easy line.

  In a preferred embodiment of the present invention, the sub fold line is shorter than the main fold line adjacent to the sub fold line.

  In a preferred embodiment of the present invention, the base member has a bottom portion connected to the bottom ends of the plurality of main side wall portions.

  According to the present invention, the notch is provided in the base material. The notch is in contact with at least one of the plurality of main fold lines. The plurality of main fold lines are indispensable for obtaining a structure that folds a flat base material and arranges the plurality of side wall portions in an annular shape to define the accommodation space. By providing the notch portion, it is possible to prevent the bending of the main fold line from being unnecessarily forceful or the folds of the plurality of main fold lines being too close to each other. It is possible. Therefore, the container can be manufactured more efficiently.

  Other features and advantages of the present invention will become more apparent from the detailed description given below with reference to the accompanying drawings.

It is a top view which shows the base material and film material which are used for the container which concerns on 1st Embodiment of this invention. It is a principal part expanded sectional view which follows the II-II line of FIG. It is a top view which shows the state after the cutting | disconnection of the base material and film material which are used for the container which concerns on 1st Embodiment of this invention. It is a principal part enlarged plan view which shows the state after the cutting | disconnection of the base material and film material which are used for the container which concerns on 1st Embodiment of this invention. It is a perspective view which shows manufacture of the container which concerns on 1st Embodiment of this invention. It is a perspective view which shows manufacture of the container which concerns on 1st Embodiment of this invention. It is a top view which shows the container which concerns on 1st Embodiment of this invention. It is a principal part expanded development view which shows the 1st modification of the container which concerns on 1st Embodiment of this invention. It is a principal part expanded view which shows the 2nd modification of the container which concerns on 1st Embodiment of this invention. It is a principal part expanded view which shows the 3rd modification of the container which concerns on 1st Embodiment of this invention. It is a principal part expanded view which shows the 4th modification of the container which concerns on 1st Embodiment of this invention. It is a principal part expanded development view which shows the 5th modification of the container which concerns on 1st Embodiment of this invention. It is a principal part expanded development view which shows the 6th modification of the container which concerns on 1st Embodiment of this invention. It is a principal part expanded view which shows the 7th modification of the container which concerns on 1st Embodiment of this invention. It is a principal part expanded view which shows the 8th modification of the container which concerns on 1st Embodiment of this invention. It is a principal part expanded view which shows the 9th modification of the container which concerns on 1st Embodiment of this invention. It is a principal part expanded view which shows the 10th modification of the container which concerns on 1st Embodiment of this invention. It is a principal part expanded view which shows the 11th modification of the container which concerns on 1st Embodiment of this invention. It is an expanded view which shows the container which concerns on 2nd Embodiment of this invention. It is an expanded view which shows the container which concerns on 3rd Embodiment of this invention. It is a principal part perspective view which shows the container which concerns on 3rd Embodiment of this invention. It is a principal part expanded view which shows the 1st modification of the container which concerns on 3rd Embodiment of this invention.

  Hereinafter, preferred embodiments of the present invention will be specifically described with reference to the drawings.

<First Embodiment>
FIG.1 and FIG.2 has shown an example of the base material 10 and the film material 70 for manufacturing the below-mentioned container A1 which concerns on 1st Embodiment of this invention. In FIG. 1, for convenience of understanding, the base material 10 is hatched, and the same applies to the subsequent drawings.

  The base material 10 is a material to be a base material 1 to be described later constituting the container A1, and has an outer surface 11 and an inner surface 12 facing opposite sides in the thickness direction. As the base material 10, a material mainly composed of a general base material called so-called non-coated paper such as cardboard, plain paper, synthetic paper, or so-called coated paper having a resin layer provided on the surface, or a synthetic material. A material mainly composed of a synthetic resin material such as a resin sheet may be employed. As these, various sheet materials such as a single layer sheet and a laminated sheet in which two or more of these sheets are laminated and bonded can be used. In this embodiment, a case where a board made of cardboard is used as the base material 10 will be described as an example.

As shown in FIG. 2, the film material 70 is joined to the inner surface 12 of the base material 10 and is a member that defines the accommodation space 6 in the container A1. The material of the film material 70 is not particularly limited as long as the contents accommodated in the accommodation space 6 can be appropriately held in a sealed state, and examples thereof include resins and paper materials. Specific examples of the resin used for the film material 70, a polyester resin (polyethylene terephthalate (PET), polyethylene naphthalate _- DOO (PEN), polybutylene terephthalate (PBT), polycarbonate (PC), etc.), polyolefin resin ( Polyethylene (PE), polypropylene (PP), etc.), polyamide resins (nylon _- 6, nylon _- 66, etc.), polyacrylonitrile (PAN), polyimide (PI), polyvinyl chloride (PVC), polyvinylidene chloride (PVDC) , Polymethyl methacrylate (PMMA), polyether sulfone (PES), and ethylene _- vinyl alcohol copolymer (EVOH). From the viewpoint of performing processing more smoothly, the film material 70 is preferably a soft film, and is preferably a polyolefin resin. Moreover, in the use use heated with a microwave oven etc., the film material 70 has a preferable polypropylene. Further, for example, a barrier layer having a gas barrier property or a light barrier property may be laminated. Examples of the barrier layer include a metal thin film such as aluminum, or a resin film such as vinylidene chloride (PVDC) or ethylene _- vinyl alcohol copolymer (EVOH). Examples of the paper material used for the film material 70 include pulp paper, synthetic paper, and coated paper. As an example of the coated paper, there is a configuration similar to a so-called cooking sheet having a surface coated with a silicone resin or a fluorine resin. When such a film material 70 is used, the container A1 can be used as a cake baking mold in a configuration in which the cake material is selected as the contents of the container A1. Moreover, there is an advantage that the baked cake can be easily peeled off from the film 7 described later. The thickness of the film material 70 is not particularly limited, and the thickness of the film material 70 is preferably about 10 to 100 μm, more preferably about 15 to 60 μm from the viewpoint of smoothly performing the bending process.

  The method for joining the film material 70 to the inner surface 12 of the base material 10 is not particularly limited, and various methods such as heat welding and adhesion are appropriately employed. For example, the inner surface 12 of the base material 10 and the film material 70 may be joined by an adhesive. Alternatively, the sealant layer may be provided on both the inner surface 12 of the base material 10 and the film material 70 to join them by a heat sealing method. Moreover, the whole area | region where the base material 10 and the film material 70 have overlapped may be joined, and only a part of the said area | region may be joined.

  The base material 10 is formed with a plurality of main fold easy lines 41, 42, a plurality of sub fold easy lines 43, a plurality of scheduled cutting lines 49, a plurality of notches 51, and a plurality of notches 52. Further, the base material 10 has a plurality of side walls 2 and a bottom 29 in the base 1 described later.

  As shown in FIGS. 1 and 2, the plurality of cutout portions 51 and the plurality of cutout portions 52 are void portions that penetrate the base material 10 in the thickness direction. For example, the base material 10 is partially formed. It is formed by being cut off. The plurality of notches 51 and the plurality of notches 52 are covered with the film material 70 from the inner surface 12 side. In the illustrated example, six cutout portions 51 and six cutout portions 52 are arranged concentrically. The six notches 51 are arranged on the outside in a plan view, and the six notches 52 are arranged on the inner side (center side).

  The plurality of scheduled cutting lines 49 are lines scheduled to cut the base material 10 and the film material 70 prior to the manufacture of the container A1. The plurality of planned cutting lines 49 are formed in a region near the outer edge of the base material 10 and have a substantially annular shape in plan view. The specific configuration of the planned cutting line 49 is not particularly limited, and various configurations such as a cutting line, a perforation line, and a printing line are appropriately employed. In the illustrated example, the planned cutting line 49 is constituted by a cutting line. Moreover, in this example, each cutting planned line 49 is arrange | positioned between the notch parts 51 which adjoin. Note that both ends of the planned cutting line 49 are separated from the notch 51. In the illustrated example, the base material 10 is described as having an intended cutting line 49. However, the present invention is not limited to this, and the base material 10 that does not have the planned cutting line 49 may be used. Good. As a method of cutting such a base material 10, for example, punching and cutting using a Thomson blade or the like can be mentioned. In the case of such a method, as long as the Thomson blade and the base material 10 are positioned, it is not essential to provide a cutting point such as the planned cutting line 49.

  3 and 4 show a state in which the base material 10 and the film material 70 are cut along a plurality of planned cutting lines 49. In addition, you may manufacture container A1 by using the base material 10 and the film material 70 of a predetermined shape, without passing through such a cutting process.

  As shown in FIGS. 3 and 4, the notch 51 is open to the outside in a plan view and is in contact with the outer edge of the base material 10. In the illustrated example, the notch 51 has a line-symmetric shape with a straight line passing through the center of the base material 10 as an axis of symmetry, and has a substantially pentagonal shape. The intersection (corner portion) of each side may be, for example, a bent shape in which straight lines are connected to each other, or may be a curved shape connected by a curved line, and various specific shapes may be set. . In the illustrated example, both a bent shape and a curved shape are employed.

  As shown in FIGS. 3 and 4, the cutout portion 52 is an opening portion closed in a plan view, and is located closer to the center of the base material 10 with respect to the cutout portion 51. In the illustrated example, the cutout portion 52 has a line-symmetric shape having a symmetry axis in common with the cutout portion 51 described above, and is substantially rectangular. Of the intersections (corners) of each side of the cutout 52, the outermost one and the one located in the middle are curved, but the specific shape of the part varies. You only have to set it.

  The plurality of main fold easy lines 41 and 42 and the plurality of sub fold easy lines 43 are formed by making the linear portions of the base material 10 easy to bend. The specific structure which comprises the main fold easy lines 41 and 42 and the sub fold easy line 43 is not specifically limited, The structure etc. in which the intensity | strength of the base material 10 was partially weakened are employ | adopted suitably. Specific structures constituting the main fold easy lines 41 and 42 and the sub fold easy line 43 include, for example, perforation lines, cutting lines having a predetermined length, crease lines, and combinations thereof. In the present embodiment, as shown in FIG. 3, the base material 10 is composed of six main foldable easy lines 42 having a substantially hexagonal shape in the central portion of the base material 10 and a radial shape outside the hexagonal shape. There are twelve main fold easy lines 41 and six sub fold easy lines 43 extending.

  The twelve main foldable lines 41 and the six subfoldable easy lines 43 that extend radially are a pair of a main foldable line 41 and a subfoldable easy line 43 that are arranged in pairs. FIG. 4 shows a pair of main fold easy lines 41 and sub-fold easy lines 43 that form a pair extending radially. As clearly shown in the figure, the pair of main fold easy lines 41 and the sub fold easy lines 43 are set between the corners of the notch 51 and the corners of the notch 52. . In the illustrated example, the pair of main fold easy lines 41 and sub fold easy lines 43 reach both the notch 51 and the notch 52 so that the notch is cut. 51 and the notch 52. In other words, the pair of main fold easy lines 41 and the sub fold easy lines 43 are for forming a fold line connecting the notch part 51 and the notch part 52. The main fold easy line 41 and the sub fold easy line 43 may be any one that can assist the bending for forming the main side wall part 21 and the sub side wall part 22, and both ends thereof are the notch part 51 and the notch part. It is not limited to what reached both of 52. The main fold easy line 41 and the sub fold easy line 43 may have only one end reaching either the cutout part 51 or the cutout part 52. For example, in a configuration that does not have the notch 51, the main fold easy line 42 and the sub-fold easy line 43 may reach only the notch 52.

  The pair of main fold easy lines 41 is for forming a main fold line 31 described later in the container A1. The sub-folding easy line 43 is for forming a sub-bending line 33 described later in the container A1.

  Of the pair of main fold easy lines 41 shown in FIG. 3, the left main fold easy line 41 in the drawing is configured by forming a cutting line 402. The cutting line 402 is a part where a part of the base material 10 is cut at a predetermined length. However, the cutting line 402 does not reach both the notch 51 and the notch 52, and does not contact the notch 51 and the notch 52. For this reason, the parts located on both sides of the base material 10 across the cutting line 402 are not completely separated. Since the cutting line 402 is provided, a straight line passing through the cutting line 402 and connecting the corner of the notch 51 and the corner of the notch 52 is easy to bend, and this is the main bend easy line. 41.

  Of the pair of main fold easy lines 41 shown in FIG. 3, the right main fold easy line 41 in the drawing is configured by forming a perforation line 401 and two cutting lines 402. The perforation line 401 is formed by arranging a plurality of short cutting lines in series. In the illustrated example, the perforation line 401 does not reach both the notch 51 and the notch 52, but the perforation line 401 reaches at least one of the notch 51 and the notch 52, The structure which touches this may be sufficient. The two cutting lines 402 extend from the corners of the notch 51 and the corners of the notch 52 toward the end of the perforation line 401, respectively. However, these cutting lines 402 do not reach the perforation line 401. Since the perforation line 401 and the two cutting lines 402 are provided, a straight line passing through the perforation line 401 and the two cutting lines 402 and connecting the corner of the notch 51 and the corner of the notch 52 is formed. It is easy to bend, and this is a main bend easy line 41.

  The pair of main fold easy lines 41 configured as described above have different bending strengths. Specifically, the bending strength of the left main folding easy line 41 in FIG. 4 constituted by the relatively long cutting line 402 is mainly the right main folding easy line 41 in the figure constituted by the perforation line 401. It is weaker than the bending strength. In the following description, the main fold easy line 41 having a relatively high bending strength on the right side in the figure is defined as a first main fold easy line 41A, and the main fold easy line 41 having a relatively low bending strength on the left side in the figure. The line 41 is defined as a second main fold easy line 41B. And in the bending process in manufacture of the container A1 mentioned later, the degree by which the 2nd main fold easy line 41B is bent rather than the 1st main fold easy line 41A becomes large.

  The sub-folding easy line 43 is provided so as to connect the closest ones of the corners of the notch 51 and the corner of the notch 52. In the illustrated example, the sub-foldable easy line 43 is configured by forming a cutting line 402. This cutting line 402 does not reach the notch 51 and the notch 52. Since the cutting line 402 is provided, a straight line passing through the cutting line 402 and connecting the corner portion of the cutout portion 51 and the corner portion of the cutout portion 52 is easily bent. It is an easy line 43.

  In the illustrated example, the auxiliary fold easy line 43 is shorter than the pair of main fold easy lines 41. Further, the side extending from the end of the main fold easy line 41 to the end of the sub fold easy line 43 among the sides of the notch 51 and the side extending from the end of the main fold easy line 41 among the sides of the notch 52 The side extending to the end of the easy folding line 43 is inclined so that the distance from each other decreases as the secondary folding easy line 43 is approached. Since the sub-foldable easy line 43 is shorter than the pair of main foldable easy lines 41, the sub-foldable easy line 43 is more conspicuous than the pair of main foldable easy lines 41 in the bending process in manufacturing the container A1 described later. For example, the bending starts in advance with respect to the pair of main folding easy lines 41.

  Six main fold easy lines 42 having a substantially hexagonal shape in the central portion of the base material 10 are provided to form a main fold line 32 described later in the container A1. In the illustrated example, each main fold easy line 42 is configured by forming a cutting line 402. However, the cutting lines 402 constituting the main folding easy lines 42 are separated from each other and are not in contact with each other.

  By providing the plurality of notches 51, the plurality of notches 52, the plurality of main foldable lines 41, the plurality of main foldable lines 42, and the plurality of subfoldable lines 43 described above, a base material is provided. 10, a plurality of side wall portions 2 and a bottom portion 29 in the container A1 are set.

  In the present embodiment, the plurality of side wall portions 2 include a plurality of main side wall portions 21 and a plurality of sub-side wall portions 22. The main side wall portion 21 has a portion whose boundary is constituted by a pair of main fold easy lines 41 and main fold easy lines 42. In the illustrated example, the main side wall 21 is sandwiched between adjacent notches 51 and is also sandwiched between adjacent notches 52. In the illustrated example, the pair of main folding easy lines 41 located on both sides of the main side wall 21 are parallel to each other, so that the main side wall 21 has a rectangular shape in plan view. However, the shape of the main side wall 21 is not particularly limited, and may be a quadrangular shape such as a trapezoid other than a rectangular shape, or may be a polygonal shape other than a rectangular shape.

  The sub-side wall portion 22 is disposed between the adjacent main side wall portions 21. In the illustrated example, the sub-side wall portion 22 is formed as having a sub-folding easy line 43, and the sub-side wall portion 22 has a line-symmetric shape with the sub-folding easy line 43 as the axis of symmetry. In the illustrated example, the sub-side wall portion 22 has a constricted central portion where the sub-folding easy line 43 is formed.

  The bottom 29 is a portion surrounded by six main foldable lines 42. In the illustrated example, the bottom 29 has a hexagonal shape in plan view, but the shape of the bottom 29 is not particularly limited, and various polygonal shapes and the like are appropriately selected. Further, the container may be manufactured using the base material 10 that does not have the bottom 29.

  In the illustrated example, the notch 52 is located on the bottom 29 side with respect to the main side wall 21. Further, the notch portion 52 is in contact with both of the pair of adjacent main fold lines 41 with the sub-side wall portion 22 interposed therebetween.

  5 and 6 show the manufacture of the container A1 using FIG. 3 and FIG.

  As shown in FIG. 5, the base material 10 and the film material 70 are bent along the plurality of easy-to-bend lines 4 of the base material 10. Hereinafter, for convenience of explanation, a fold that protrudes toward the side facing the inner surface 12 of the base material 10 is referred to as “mountain fold”, and a fold that protrudes toward the side toward the outer surface 11 is referred to as “valley fold”. As shown in the figure, the plurality of main fold easy lines 41 are valley-folded, and the plurality of sub-fold easy lines 43 are mountain-folded. Further, the plurality of main fold easy lines 42 are valley-folded. As a result, the plurality of main side wall portions 21 stand up with respect to the bottom portion 29. Further, the sub-side wall portion 22 is folded in two at the main fold easy line 42 to be folded in two. For this reason, the adjacent main side wall parts 21 on both sides of the sub side wall part 22 approach.

  When the bending of the plurality of main fold easy lines 41, the plurality of main fold easy lines 42, and the plurality of sub fold easy lines 43 is completed, the container A1 shown in FIGS. 6 and 7 is obtained.

  By folding the base material 10 and the film material 70 described above, the container A <b> 1 is configured by the base 1 and the film 7. A space in which at least the bottom side is sealed by the film 7 and the top side can be opened is the accommodation space 6. The accommodation space 6 is a space for accommodating contents.

  As can be understood from the description of the base material 10, the base 1 has a plurality of side walls 2 and a bottom 29. The plurality of side wall portions 2 surround the accommodation space 6 in the depth direction view (plan view) of the accommodation space 6. The plurality of side wall portions 2 include a plurality of main side wall portions 21 and a plurality of sub-side wall portions 22. In the present embodiment, a plurality of main side wall portions 21 mainly appear in the appearance of the container A <b> 1, and the plurality of sub side wall portions 22 are folded inside the plurality of main side wall portions 21. The adjacent main side wall parts 21 are close to each other by folding the sub side wall part 22.

  The main side wall 21 includes two main fold lines 31 and a main fold line 32 at the boundary. The main side wall portion 21 is disposed between the adjacent main side wall portions 21 and has a sub-fold line 33. In the illustrated example, the sub-side wall portion 22 is substantially folded in half along a sub-fold line 33.

  As clearly shown in FIG. 7, the folded sub-side wall portion 22 is folded along one of the adjacent main side wall portions 21. This is because the pair of main fold easy lines 41 sandwiching the sub-side wall portion 22 includes the first main fold easy line 41A and the second main fold easy line 41B whose fold strengths are in the above-described strength relationship. . Since the second main fold easy line 41B having a weak bending strength is bent relatively large, the sub-side wall portion 22 falls to the second main fold easy line 41B having a relatively low bending strength. In the following description, the main fold line 31 formed by folding the first main fold easy line 41A is defined as the first main fold line 31A, and the second main fold easy line 41B is formed. The main fold line 31 is defined as a second main fold line 31B.

  As shown in FIG. 6, the base material 1 has a plurality of notches 51 and a plurality of notches 52 provided in the base material 10. The notch 51 and the notch 52 are disposed between the adjacent main side walls 21. The notch 51 is located on the top side with respect to the sub-side wall part 22, and the notch 52 is located on the bottom side with respect to the sub-side wall part 22.

  In the illustrated example, the two main fold lines 31 and the sub fold line 33 reach the notch 51, in other words, the notch 51 includes a pair of the main fold line 31 and the sub fold. It is in contact with the line 33. The pair of main fold lines 31, the pair of main fold lines 32, and the sub fold line 33 reach the notches 52. In other words, the notches 52 have a pair of main fold lines 31 and a pair of fold lines. The main fold line 32 and the sub fold line 33 are in contact with each other.

  In the present embodiment, the container A <b> 1 may include the holding member 8. The holding member 8 is for maintaining the state in which the base material 1 is bent together with the film 7. Examples of such a holding member 8 include a lid 81 and a label 82. The lid 81 is attached from the top side of the folded base 1 and holds the plurality of main side wall portions 21 from the top side. The label 82 is, for example, a cylindrical shrink label, and holds, for example, the vicinity of the center in the depth direction of the plurality of main side wall portions 21. Either one or both of the lid 81 and the label 82 may be employed. Further, the holding member 8 is not limited to the lid 81 and the label 82, and may be any member that can appropriately maintain the folded state of the base material 1.

  Various contents are accommodated in the accommodating space 6 of the container A1 folded in the form of a container. When attaching the label 82, it is preferable to attach the label 82 prior to accommodation of the contents. The lid 81 is generally attached after the contents are accommodated.

  Next, the operation of the container A1 will be described.

  According to this embodiment, the base material 1 (base material 10) is provided with a plurality of notches 51 and a plurality of notches 52. The plurality of notches 51 and the plurality of notches 52 are in contact with at least one of the main fold line 31 and the main fold line 32. The main fold line 31 and the main fold line 32 are used to bend the flat base material 10 and arrange the main side wall portions 21 of the plurality of side wall portions 2 in an annular shape to obtain a structure that defines the accommodation space 6. This is an essential configuration. By providing the notch portion 51 and the notch portion 52, the main fold line 31 and the main fold line 32 need to be unreasonably required to be bent, or the main fold line 31 and the main fold line 32 approach each other. It is possible to prevent the bending from becoming too difficult. Therefore, the container A1 can be manufactured more efficiently.

  Further, since the main fold line 31 and the main fold line 32 are portions where the flat base material 10 is bent, a restoring force is generated to return to the flat shape again. If the restoring force is excessive, shape retention of the container A1 is hindered, and there is a concern that it is difficult to maintain the accommodation space 6 that can appropriately accommodate the contents, for example. According to the present embodiment, at least one of the main fold line 31 and the main fold line 32 is in contact with the notch 51 or the notch 52. Thereby, compared with the case where the notch part 51 and the notch part 52 are not provided, the length of the main fold line 31 and the main fold line 32 is shortened, and it is possible to suppress a restoring force. Therefore, it is preferable to hold the container A1 in a desired shape.

  In addition to the manufacturing method in which the main fold easy line 41, the main fold easy line 42, and the auxiliary fold easy line 43 of the base material 10 are manually folded, the container A1 can also be used for the base material 10 with the outer surface 11 and It is possible to manufacture by a manufacturing method of bending by pressing a jig (not shown) so as to press in place from both sides of the inner surface 12. This is suitable for manufacturing the plurality of containers A1 more efficiently.

  Moreover, when taking out the contents from container A1, it is possible to return the base material 1 and the film 7 to a flat state by removing the lid 81 and the label 82, for example. Thereby, the state which placed the contents on the flat base material 1 and the film 7 is obtained. Such a state is suitable for applications in which, for example, a plurality of users pick up and ingest the contents little by little.

  In the present embodiment, the plurality of side wall portions 2 include a plurality of main side wall portions 21 and a plurality of sub-side wall portions 22. The sub side wall part 22 can be made to approach adjacent main side wall parts 21 by bend | folding in the sub fold line 33. FIG. This is convenient for forming the cylindrical container A1 in which the plurality of main side wall portions 21 form an appearance.

  The notch 52 is located on the bottom side of the sub-side wall portion 22 and is in contact with the two main fold lines 31 that sandwich the sub-side wall portion 22. Therefore, in the container A1, as can be understood from FIGS. 4 and 5, the notch 52 is in contact with the corner of the bottom 29, and the pair of main fold lines 31 do not reach. If the pair of main fold lines 31 reach the corners of the bottom portion 29, there are portions where the ends of the pair of main fold easy lines 41 for forming the main fold lines 31 are very close to each other. Such portions where the ends of the pair of main fold easy lines 41 are close to each other require an excessive force for bending, and the bending process becomes extremely difficult. In the present embodiment, it is preferable to avoid the difficulty of such bending and to manufacture the container A1 more efficiently.

  In the base material 10, a pair of main folding easy lines 41 is provided on both sides of one sub-side wall portion 22. When the bending strengths of the pair of main fold easy lines 41 are the same, the side wall portions 2 obtained by bending the pair of main fold easy lines 41 are separated from the adjacent main side wall parts 21 into the accommodation space 6. Prone to protrude toward the center. When the sub-side wall portion 22 stands, the accommodation of the contents in the accommodation space 6 is hindered. In the present embodiment, the pair of main fold easy lines 41 located on both sides of one sub-side wall portion 22 includes a first main fold easy line 41A and a second main fold easy line 41B having different bending strengths. Thereby, in the container A1, the sub-side wall portion 22 can be intentionally tilted toward the second main fold line 31B where the second main fold easy line 41B having a low bending strength is folded. Therefore, as shown in FIG. 7, it is possible to avoid the plurality of sub-side wall portions 22 from projecting greatly toward the accommodation space 6, and the contents can be accommodated more smoothly in the accommodation space 6. it can. Moreover, in this example, the direction in which the some sub side wall part 22 falls is made to correspond. Such a configuration is preferable for improving the aesthetics during use. In addition, it is not limited to the structure which provides the some 1st main fold easy line 41A and the some 2nd main fold easy line 41B so that all the some sub side wall parts 22 may fall in the same direction, A some sub side wall part A configuration in which the directions in which the plurality of sub-side wall portions 22 are tilted may be different, such as a configuration in which the directions in which the 22 is tilted are alternately different. Even in such a case, the contents can be accommodated in the accommodation space 6 more smoothly.

  Since the auxiliary fold easy line 43 is shorter than the main fold easy line 41, when a force for bending the base material 10 is applied, a greater stress is generated in the sub fold easy line 43 than in the main fold easy line 41. Due to this stress, for example, the auxiliary fold easy line 43 is bent before the main fold easy line 41. This is preferable in order to obtain a state in which the plurality of sub-side wall portions 22 are reliably folded and the plurality of main side wall portions 21 approach each other and stand up.

  The cutting line 402 constituting the sub-folding easy line 43 does not reach the notch 52. If the cutting line 402 has reached the notch 52, when the sub-folding line 33 is formed by folding along the sub-folding easy line 43, the portion of the sub-side wall 22 along the cutting line 402 It becomes a clear corner part. This corner portion may damage the film 7 covering the notch 52. If the cutting line 402 does not reach the cutout portion 52 as in the present embodiment, the portion of the sub-fold line 33 that reaches the cutout portion 52 is a bent portion and a clear corner portion. Can be avoided. Therefore, damage to the film 7 can be suppressed.

  8 to 19 show a modified example and other embodiments of the present invention. In these drawings, the same or similar elements as those in the above embodiment are denoted by the same reference numerals as those in the above embodiment. Further, in these drawings, for explaining the configuration of a container as a modified example of the container A1, for example, the developed base material 10 (base 1) is illustrated. The configuration shown in such a development view is not a direct representation of the three-dimensional container, but is sufficient to show the configuration of the container based on the example described with reference to FIGS. To be understood.

<First Embodiment First Modification>
FIG. 8 shows a first modification of the container A1. As for container A11 of this modification, the notch part 51 is made into the substantially triangular shape. In other words, the main fold easy line 41 reaches the outer edge of the base material 10.

  Also according to such a modification, the container A11 can be manufactured more efficiently. Moreover, the length of the main fold easy line 41 can be made longer, and the sub fold easy line 43 can be made relatively shorter than the main fold easy line 41. As a result, the bending of the auxiliary folding easy line 43 can be started in a more reliable manner. Thus, the shape of the notch 51 and the relationship between the main folding easy line 41 and the outer edge of the base material 10 can be selected as appropriate, and this is the same in the examples described later.

<First Embodiment Second Modification>
FIG. 9 shows a second modification of the container A1. The container A12 of this modification is not provided with the perforation line 401 or the cutting line 402 for configuring the auxiliary folding easy line 43. In this example, the distance between the corner of the notch 51 and the corner of the notch 52 that are closest to each other is set shorter. As a result, the illustrated sub-folding easy line 43 is a linear part that can be easily bent regardless of the perforation line 401 and the cutting line 402.

  Also according to such a modification, the container A11 can be manufactured more efficiently. Further, there is an advantage that it is not necessary to form the perforation line 401 and the cutting line 402 for constituting the auxiliary folding easy line 43.

<First Embodiment Third Modification>
FIG. 10 shows a third modification of the container A1. The container A13 of the present modification is different from the container A1 described above in the shape of the side of the notch 52. In the present modification, the cutout portion 52 has a shape in which the two sides contacting the sub-side wall portion 22 are significantly longer than the two sides connected to the corner portion of the bottom portion 29.

  Also according to such a modification, the container A13 can be manufactured more efficiently. Further, as can be understood from the present modification, the shape of the cutout portion 52, the ratio of each side, and the like can be variously set.

<First Embodiment Fourth Modification>
FIG. 11 shows a fourth modification of the container A1. The container A14 of this modification is different from the container A11 described above in the shapes of the notch 51 and the notch 52. In the present modification, the length of the two sides of the notch 51 is longer than the length in the container A <b> 11, and the notch 51 has a shape that is deeply cut into the center of the base material 10. In addition, the notch 52 has a shape in which two sides contacting the sub-side wall 22 are significantly shorter than two sides connected to the corner of the bottom 29.

  Also according to such a modification, the container A11 can be manufactured more efficiently. Further, as can be understood from the present modification, the shapes of the cutout portion 51 and the cutout portion 52, the ratio of each side, and the like can be variously set.

<First Embodiment Fifth Modification>
FIG. 12 shows a fifth modification of the container A1. The container A15 of the present modification is different from the above-described example in the specific configuration of the notch 51 and the notch 52. In this modification, the notch 52 is formed in a substantially triangular shape. A plurality of recesses 58 are formed in the notch 51 and the notch 52. The recess 58 is provided in a joint portion between two adjacent sides of the notch 51 and the notch 52. The recess 58 has, for example, an arc shape.

  Also according to such a modified example, the container A15 can be manufactured more efficiently. Further, the main fold easy line 41 and the sub fold easy line 43 are in contact with the recesses 58 provided in the notch 51 and the notch 52. Thereby, the main folding easy line 41 and the sub folding easy line 43 can be bent more easily.

<First Embodiment Sixth Modification>
FIG. 13 shows a sixth modification of the container A1. In the container A16 of this modification, the shape of the notch 52 is an arrowhead shape. In other words, the two sides of the notch 51 in contact with the sub-side wall 22 and the two sides of the notch 52 in contact with the sub-side wall 22 are inclined to the same side. Thereby, the sub-folding easy line 43 is disposed closer to the center of the base material 10 with respect to the pair of main folding easy lines 41.

  Also according to such a modification, the container A16 can be manufactured more efficiently. Moreover, the shape of the notch part 52 can be variously set so that the shape of this modification is included.

<First Embodiment Seventh Modification>
FIG. 14 shows a seventh modification of the container A1. As for container A17 of this modification, the notch 52 is fan-shaped. In other words, the bottom side of the sub-side wall portion 22 has an arc shape.

  Also according to such a modification, the container A17 can be manufactured more efficiently. Further, as can be understood from the present modification, the cutout portion 52 can be formed by appropriately selecting a linear shape or a curved shape.

<First Embodiment Eighth Modification>
FIG. 15 shows an eighth modification of the container A1. As for container A18 of this modification, two sides which contact sub side wall part 22 of notch 51 are curving. In other words, the two sides on the top side of the sub-side wall portion 22 are curved to bulge toward the cutout portion 51 side.

  Also according to such a modification, the container A18 can be manufactured more efficiently. Further, as can be understood from the present modification, the notch 51 can be formed by appropriately selecting a linear shape or a curved shape.

<First Embodiment Ninth Modification>
FIG. 16 shows a ninth modification of the container A1. As for container A19 of this modification, two sides which contact sub side wall part 22 of notch part 51, and two sides which touch sub side wall part 22 of notch part 51 are curves, respectively. In other words, the two sides on the top side of the sub-side wall portion 22 are curved so as to bulge toward the notch 51, and the two sides on the bottom side of the sub-side wall 22 bulge toward the notch 52. It is assumed to be a curved line. In the present modification, the pair of main fold easy lines 41 (main fold lines 31) located on both sides of the main side wall portion 21 are not parallel, and the distance from each other increases toward the top. Thereby, the main side wall part 21 is made trapezoid. In the present modification, the main fold easy line 42 is formed by forming a perforation line 401.

  Also according to such a modification, the container A19 can be manufactured more efficiently. Moreover, in this modification, container A19 completed by the bending process becomes a taper shape in which the opening becomes larger toward the top side. Thus, the shape of the whole container can be set variously by appropriately changing the shape of the main side wall 21.

<First Embodiment Tenth Modification>
FIG. 17 shows a tenth modification of the container A1. The container A1a of the present modification has a substantially pentagonal shape in which the cutout portion 51 has three sides in contact with the sub-side wall portion 22. Of the three sides in contact with the sub-side wall portion 22, the side located at the center is perpendicular to the sub-folding easy line 43. Two sides located on both sides among the three sides in contact with the sub-side wall portion 22 are inclined with respect to the central side.

  Also according to such a modification, the container A1a can be manufactured more efficiently. Further, in this modification, it is possible to avoid that the lower end of the sub-side wall portion 22 (the end portion in contact with the notch portion 52) has a sharp shape when being bent along the sub-folding easy line 43. Is possible. This is preferable for preventing damage to the film 7.

<First Embodiment Eleventh Modification>
FIG. 18 shows an eleventh modification of the container A1. The container A1b of the present modification is different from the above-described embodiment in the configuration of the main folding easy line 42. The main folding easy line 42 of this modification is configured by providing three cutting lines 402.

  The three cutting lines 402 are provided side by side so as to form a main fold line 42 that divides the main side wall portion 21 and the bottom portion 29. Of the three cutting lines 402, the cutting line 402 located at the center is longer than the cutting lines 402 on both sides. The lengths of the cutting lines 402 on both sides are substantially the same. The cutting lines 402 on both sides do not reach the notch 52.

  Also according to such a modification, the container A1b can be manufactured more efficiently. In the present modification, the main fold easy line 42 is constituted by three cutting lines 402, and is easier to bend than a case where the main fold easy line 42 is constituted by, for example, a perforation line 401. Moreover, compared with the case where one long cutting line 402 is formed over substantially the entire length of the boundary between the main sidewall 21 and the bottom 29, the shape of the container A1b formed by bending can be more reliably maintained. .

Second Embodiment
FIG. 19 shows a development view of the container according to the second embodiment of the present invention. In the container A2 of the present embodiment, a plurality of notches 53 are formed in the base material 1 (base material 10). The plurality of cutout portions 53 are provided in the bottom portion 29, and a pair of main folding easy lines 42 are in contact with each other from both sides thereof.

  Also according to such an embodiment, the container A2 can be manufactured more efficiently. Moreover, according to this embodiment, the notch part 53 is formed, so that the main bending easy line 42 can be bent more easily.

<Third Embodiment>
FIG. 20 shows a development view of the container according to the third embodiment of the present invention. In the container A <b> 3 of the present embodiment, the notch 51 is not covered with the film material 70. Moreover, the two sides which contact the sub side wall part 22 of the notch part 51 are the curves dented to the sub side wall part 22 side. In other words, the two sides on the top side of the sub-side wall portion 22 are curved to be recessed inside the sub-side wall portion 22. The intersection of the two sides on the top side of the sub-side wall portion 22 forms a corner portion.

  FIG. 21 shows a container A3 manufactured by bending. The sub-side wall portion 22 bent along the sub-folding easy line 43 has a shape having a corner portion at the upper end of the sub-folding line 33. In the container A <b> 3, the notch 51 is not covered with the film material 70. For this reason, the upper limit line UL passing through the corner portion of the sub-side wall portion 22 defines the upper limit of the liquid that can fill the container A3.

  Also according to this embodiment, the container A3 can be manufactured more efficiently. In addition, by making the two sides on the top side of the sub-side wall portion 22 into a curve recessed inside the sub-side wall portion 22, it is possible to set the height from the bottom portion 29 of the upper limit line UL in the container A3 higher. is there. Thereby, the substantial volume of container A3 can be increased.

  As shown in FIG. 20, in the container A3, the base material 1 and the film 7 have the same outer shape. Therefore, when the container A3 is formed by a similar method using the base material 10 and the film material 70 shown in FIG. 1, the base material 10 and the film material 70 may be cut in a lump. It is not necessary to perform batch cutting of the material 10 and the film material 70 and cutting only the film material 70. This is advantageous for facilitating the cutting operation.

  Needless to say, the configurations of the respective parts shown in the containers A1 and A2 and the modified examples thereof may be appropriately applied to the container A3 in which the notch 51 is not covered with the film 7. Moreover, you may apply the shape of the sub side wall part 22 of container A3 to container A1, A2. For example, in the container A1 shown in FIG. However, since the film 7 is soft and bendable, it can be assumed that the upper limit line cannot be maintained by the film 7 depending on the type of the package. In such a case, the fact that the upper limit line can be maintained at a higher position by the shape of the sub-side wall portion 22 of the base material 1 is advantageous for preventing leakage of the packaged object.

<Third Embodiment First Modification>
FIG. 22 shows a first modification of the container A3. In the container A31 of this modification, the upper side of the sub-side wall portion 22 is formed in a straight line, and the notch portion 51 described above is not provided. In addition, a notch portion 54 is formed in the sub-side wall portion 22. The notch portion 54 is provided at a position where the sub-folding easy line 43 is divided, and in the illustrated example, is located at the approximate center of the sub-side wall portion 22. The notch 54 is covered with the film material 70 (film 7).

  Sub-folding easy lines 43 are set on both sides of the notch 54. In the illustrated example, the sub-folding easy line 43 is configured by forming the cutting line 402, but a perforation line 401 other than the cutting line 402 may be appropriately employed.

  Also according to this modification, the container A31 can be manufactured more efficiently. Further, since the upper side of the sub-side wall portion 22 is straight, it is possible to set the height from the bottom portion 29 of the upper limit line UL shown in FIG. 21 higher. Thereby, the volume of container A31 can be increased. Further, the length of the auxiliary folding easy line 43 tends to be long corresponding to the fact that the notch 51 is not provided. However, in the present embodiment, by providing the notch portion 54 in the sub-side wall portion 22, it is possible to avoid the sub-folding easy line 43 from becoming unduly long, and the sub-folding easy line 43. It is possible to prevent the bending along the line from becoming difficult.

  The container according to the present invention is not limited to the above-described embodiment. The specific configuration of each part of the container according to the present invention can be changed in various ways.

  The container which concerns on this invention is not limited to the structure provided with the bottom part 29, The structure which is not provided with the bottom part 29 may be sufficient. In this case, the main side wall 21 may be set in a triangular shape, for example. Further, the plurality of side wall portions 2 may be configured not to include the sub-side wall portion 22.

A1, A11, A12, A13, A14, A15, A16, A17, A18, A19, A1a, A1b, A2, A3, A31: Container 1: Base material 2: Side wall 41: Main foldable line 41A: First main Easy fold line 41B: Second main fold easy line 42: Main fold easy line 43: Sub-fold easy line 6: Storage space 7: Film 8: Holding member 10: Base material 11: Outer surface 12: Inner surface 21: Main side wall 22: Sub-side wall 29: Bottom 31, 32: Main fold line 31A: First main fold line 31A
31B: second main fold line 31B
33: Sub-bending line 401: Perforation line 402: Cutting line 49: Planned cutting lines 51, 52, 53, 54: Notch 58: Recess 70: Film material 81: Lid 82: Label UL: Upper limit line

Claims (7)

A base material having an outer surface and an inner surface;
A container fixed to the inner surface of the base material that defines a storage space in which the bottom side in the depth direction is sealed and the top side can be opened,
The base material is in contact with at least one of the plurality of side wall portions surrounding the accommodation space in the depth direction, the plurality of main fold lines forming boundaries of the side wall portions, and the plurality of main fold lines. A container having one or more notches covered with the film. The plurality of side wall portions include a plurality of main side wall portions and sub-side wall portions arranged between the adjacent main side wall portions,
2. The container according to claim 1, wherein the main side wall portions adjacent to each other are close to each other by folding the sub side wall portion along a sub folding line.   3. The container according to claim 2, wherein the one or more cutout portions include a portion positioned on a bottom side with respect to the sub-side wall portion and in contact with both of the adjacent main fold lines.   The container according to claim 2 or 3, wherein the main fold line and the sub fold line are folded along a main fold easy line and a sub fold easy line formed on the base material.   The pair of main fold lines positioned across the sub-side wall portion includes a first main fold line having a relatively high bending strength and a second main fold line having a relatively low bending strength. The container according to any one of claims 2 to 4.   The container according to any one of claims 2 to 5, wherein the sub fold line is shorter than the main fold line adjacent to the sub fold line.   The said base material is a container in any one of Claim 2 thru | or 6 which has a bottom part connected with the bottom end of these main side wall parts.

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