Cover body, container with cover body and combination of cover body and container

Abstract

The invention provides a cover body, a container with a cover body, and a combination of the cover body and the container, wherein the cover body can prevent contents from being ejected from the cover body in the state of the container with the cover body. The lid has a main body formed so as to be able to come into contact with a container having an opening and an edge forming the outer periphery of the opening, the main body has an insertion part configured so as to be able to form an insertion hole, and the insertion part has a hole lid part covering the insertion hole and a fragile part forming at least a part of the outer periphery of the hole lid part. The fragile portion has a plurality of cut-through portions that penetrate the main body in the thickness direction of the main body and a non-penetrating portion that prevents the main body from penetrating, the insertion hole is formed by applying stress from the outside in the thickness direction of the main body with respect to the insertion portion, and the non-penetrating portion is broken when the insertion hole is formed. The broken non-penetrating part forms a broken surface on a part of the outer periphery of the hole cover part, the hole cover part and the broken surface are displaced together, and at least a part of the broken surface is located at the top end part of the hole cover part.

Description

Technical Field

[0001] The invention relates to a cover body, a container with the cover body, and a combination of the cover body and the container. Background Art

[0002] The container with a lid is widely provided in a state where drinks or food (hereinafter also referred to as "contents") are contained in a container having an opening formed therein and a lid attached thereto.

[0003] From the viewpoint of reducing the environmental burden, as a cover body mounted on a container, a cover body made of paper material is required. As a method of mounting a cover body on a container, a method (sealing method) of joining the cover body to an edge formed by the outer periphery of the opening at the upper end of the container using a method such as heat pressing is known. When the contents contained in the cover body are liquids such as cold drinks and carbonated beverages, as a method of ingesting the contents, the following method is disclosed in Patent Document 1, in which an insertion portion for forming an insertion hole is formed on the cover body, and a straw or the like is inserted into the insertion portion to suck the contents.

[0004] Prior art literature

[0005] Patent Literature

[0006] Patent Document 1: Japanese Patent Application Publication No. 2012-153382 Summary of the invention

[0007] In the technology described in Patent Document 1, the contents may leak out from the insertion portion due to the vibration of the container with the cover when the user moves the container with the cover. In particular, when the contents are drinks that generate gas such as carbonated beverages, there is a concern that the contents may spray out from the insertion portion. In addition, when the cover is formed of a material that may be hygroscopic and water-absorbent, such as paper, a gap is easily formed in the insertion portion, and the risk of the contents spraying out from the insertion portion increases. Therefore, there is room for improvement in suppressing the contents from spraying out from the cover.

[0008] The present invention has been made in view of such a problem, and an object of the present invention is to provide a cover body capable of suppressing the contents from being sprayed out of the cover body when the container is in a state of having a cover body, a container having a cover body, and a combination of the cover body and the container.

[0009] The present invention is based on the following inventions (1) to (13).

[0010] (1) A cover body, which has a main body that can be formed in contact with a container, the container has an opening portion and an edge portion forming the outer periphery of the opening portion, the main body has an insertion portion configured in a manner capable of forming an insertion hole, the insertion portion has a hole cover portion covering the insertion hole, and a fragile portion forming at least a portion of the outer periphery of the hole cover portion, the fragile portion has a plurality of cut-in portions that penetrate the main body along the thickness direction of the main body, and a non-penetrating portion that avoids penetrating the main body, the insertion hole is formed by applying stress from the outside along the thickness direction of the main body relative to the insertion portion, when the insertion hole is formed, the non-penetrating portion breaks, and the non-penetrating portion after breaking forms a fracture surface on a portion of the outer periphery of the hole cover portion, the hole cover portion is displaced together with the fracture surface, and at least a portion of the fracture surface is located at the top end of the hole cover portion.

[0011] (2) A cover body, which has a main body that can be formed in contact with a container, the container has an opening portion and an edge portion that forms the outer periphery of the opening portion, the main body has an insertion portion that is configured to form an insertion hole, the insertion portion has a hole cover portion that covers the insertion hole, and a fragile portion that forms at least a portion of the outer periphery of the hole cover portion, the hole cover portion has a corner portion that forms a convex contour portion when the main body is viewed from above, the fragile portion has a plurality of cut-in portions that penetrate the main body along the thickness direction of the main body, and a non-penetrating portion that avoids penetrating the main body, the insertion hole is formed by applying stress from the outside along the thickness direction of the main body relative to the insertion portion, when the insertion hole is formed, the non-penetrating portion breaks, and the non-penetrating portion after breaking forms a fracture surface on a portion of the outer periphery of the hole cover portion, the hole cover portion is displaced together with the fracture surface, and at least a portion of the fracture surface is located at the corner portion of the hole cover portion.

[0012] (3) According to the cover body described in (1) above, a plurality of the fracture surfaces are formed when the non-penetrating portion is fractured, and at least a portion of at least one of the fracture surfaces is located at the top end portion of the hole cover portion.

[0013] (4) According to the cover body described in claim (1) or (2), the fragile portion has a plurality of the non-penetrating portions, and at least one of the non-penetrating portions is broken by applying stress from the outside along the thickness direction of the main body relative to the insertion portion.

[0014] (5) According to the cover body described in (1) or (2) above, the insertion portion has a plurality of the hole cover portions, and when the insertion hole is formed, the fracture surface is formed on a portion of the outer peripheral edge of each of the hole cover portions.

[0015] (6) According to the cover body described in (1) or (2) above, the non-penetrating portion has a half-cut structure in which the main body is cut to a predetermined depth in the thickness direction of the main body.

[0016] (7) According to the cover body described in (1) or (2) above, the fragile portion has a structure in which at least three of the cutout portions are formed around the non-penetrating portion.

[0017] (8) The cover body according to (1) or (2) above, wherein a raised portion is formed, and the insertion portion is formed in a region where the raised portion is formed.

[0018] (9) In the cover according to (1) or (2) above, the main body is formed of a paper material.

[0019] (10) The cover body according to (1) or (2) above comprises: a joining area corresponding portion corresponding to an area joined to the container along the edge of the container; and a cover area corresponding portion formed by a portion located on the inner side of the joining area corresponding portion, and the insertion portion is formed in the cover area corresponding portion.

[0020] (11) According to the cover body described in (1) or (2) above, a side wall is provided on the outer periphery of the main body, and the side wall is configured to be engageable with the container along the edge of the container.

[0021] (12) According to the cover body described in (1) or (2) above, the cutting portion has a peripheral surface and an end portion. When the two different cutting portions are respectively set as the first cutting portion and the second cutting portion, at least one group of the first cutting portion and the second cutting portion is arranged so as to form the non-penetrating portion between the end portion of the first cutting portion and the peripheral surface of the second cutting portion.

[0022] (13) A container with a lid, comprising: the lid described in (1) or (2) above; and the container having the opening and the edge forming the outer periphery of the opening, wherein the lid is joined to the container.

[0023] (14) A combination of a cover and a container, comprising: the cover according to (1) or (2) above; and the container having the opening and the edge forming the outer periphery of the opening.

[0024] Effects of the Invention

[0025] According to the present invention, it is possible to provide a cover body capable of suppressing the contents from being sprayed out of the cover body in the state of the container with the cover body, a container with the cover body, and a combination of the cover body and the container. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 middle, Figure 1 A is a top view schematically showing an example of a cover body according to the first embodiment, Figure 1 B is a schematic representation Figure 1 A cross-sectional view of the longitudinal section of line AA of A, Figure 1 C is another embodiment of the cover body of the first embodiment, schematically showing Figure 1 A is a sectional view of a portion of the longitudinal section corresponding to the AA line in A.

[0027] Figure 2 middle, Figure 2 A is a top view schematically showing a state in which an insertion hole is formed in an example of the cover body of the first embodiment, Figure 2 B is a schematic representation Figure 2 A is a cross-sectional view of a longitudinal section along line BB in FIG.

[0028] Figure 3 middle, Figure 3 A is a perspective view showing an appearance of an embodiment of a container with a cover. Figure 3 B is a schematic representation Figure 3 A is a cross-sectional view of the state of the CC line longitudinal section.

[0029] Figure 4 middle, Figure 4 A to H are diagrams showing an example of the layout of the fragile portion in one example of the cover body according to Modification 1 of the first embodiment.

[0030] Figure 5 middle, Figure 5 A is a top view showing another embodiment of a cover body according to a second modification of the first embodiment. Figure 5 B is a schematic representation Figure 5 A is a cross-sectional view of a longitudinal section along line DD in FIG.

[0031] Figure 6 middle, Figure 6 A is a top view showing an example of a cover body according to the second embodiment, Figure 6 B is a schematic representation Figure 6 A is a cross-sectional view of the longitudinal section state taken along line EE in FIG.

[0032] Figure 7 middle, Figure 7 A is a top view schematically showing a state in which an insertion hole is formed in an example of a cover body of the second embodiment, Figure 7 B is a schematic representation Figure 7 A cross-sectional view of the state of the longitudinal section taken along line FF in FIG.

[0033] Figure 8middle, Figure 8 A to E are diagrams showing an example of the layout of the fragile portion in one example of the cover body according to the modification 1 of the second embodiment.

[0034] Fig. 9 middle, Fig. 9 A is a perspective view showing an embodiment of a cover body of the first example of the third embodiment, Fig. 9 B is a schematic representation Fig. 9 A is a cross-sectional view of a longitudinal section along line GG in FIG.

[0035] Fig.10 middle, Fig.10 A is a perspective view showing an example of a cover body of the second example of the third embodiment. Fig.10 B is a schematic representation Fig.10 A is a cross-sectional view of a longitudinal section along the HH line in FIG.

[0036] Fig.11 middle, Fig.11 A is a top view showing an embodiment of a container with a cover, Fig.11 B is a schematic representation Fig.11 A is a cross-sectional view of a longitudinal section along line II in FIG.

[0037] Fig.12 middle, Fig.12 A is a top view showing an example of a cover body according to a fifth modification of the first embodiment. Fig.12 B is a schematic representation Fig.12 A is a cross-sectional view of the state of the longitudinal section taken along the JJ line in FIG.

[0038] Fig.13 middle, Fig.13 A is a top view showing another embodiment of a cover body of a modification 5 of the first embodiment. Fig.13 B is a schematic representation Fig.13 A is a cross-sectional view of the longitudinal section of line KK in FIG.

[0039] Fig.14 middle, Fig.14 A is a perspective view showing an embodiment of a cover body of the third example of the third embodiment, Fig.14 B is a schematic representation Fig.14 A is a cross-sectional view of the state of the LL line longitudinal section.

[0040] Fig.15 This is a cross-sectional view schematically showing an example of a container with a lid according to a third example of the third embodiment. DETAILED DESCRIPTION

[0041] Hereinafter, the cover of the present invention will be described in detail based on the accompanying drawings. In addition, the cover of the present invention is described by taking the cover used for a container (cup) containing various beverages such as a coffee cup as an example, but it is not limited to the cover of a container containing beverages, and can also be applied to the cover of a container for storing food other than beverages. In addition, the cover of the present invention can also be applied to a container that can store various items other than beverages and food, such as parts such as bolts and nuts, or items other than the above. Moreover, in the following description, the cover of the present invention uses a cover whose shape is circular when viewed from above as an example, but the shape of the cover is not limited to a shape that is circular when viewed from above, and can also be applied to various shapes other than circular shapes such as elliptical shapes, rectangular shapes, and triangular shapes, chamfered rectangular shapes, and chamfered polygonal shapes.

[0042] Hereinafter, the first embodiment, the second embodiment, the third embodiment and application examples of the present invention will be described in order with reference to the drawings. In this specification and the drawings, components having substantially the same functional structure are denoted by the same reference numerals to omit repeated description.

[0043] The following description is a preferred specific example of the present invention, and the content of the present invention is not limited to these embodiments, etc. In addition, in the following description, the front and back, left and right, up and down directions and the direction of the horizontal plane are shown for convenience of explanation, but the content of the present invention is not limited to these directions. Figures 1 to 15 In the example, the Z-axis direction is used as the up-down direction (the upper side is the +Z direction, and the lower side is the -Z direction), the X-axis direction is used as the front-back direction (the back side is the +X direction, and the front side is the -X direction), the directions along the X-axis and Y-axis orthogonal to each other specified on the plane with the Z-axis direction as the normal are used as the X-axis direction and the Y-axis direction, and the plane formed by the X-axis and the Y-axis, that is, the XY plane, is used as a horizontal plane, and the explanation is based on these. Figures 1 to 15 The relative size ratios of the dimensions and the like shown in the drawings are described for convenience only, and the actual size ratios are not limited unless otherwise specified.

[0044] [1 First Implementation Method]

[0045] [1-1 Composition]

[0046] The cover body 1 of the first embodiment includes a main body 2 .

[0047] (main body)

[0048] If used Figure 3 A. Figure 3 As will be described later in FIG. B and the like, the main body 2 is formed so as to be contactable with the container 101 having the opening 102 and the edge 103 which is the upper edge forming the outer periphery of the opening 102 . Figure 3 A. Figure 3B means that the container 101 is equipped with Figure 1 A. Figure 1 FIG. 1B is a perspective view and a cross-sectional view of an example of a container 150 with a lid 1 having a lid. Figure 3 In the example of A, an opening 102 is provided on the upper end side in the vertical direction in the container 101. The cover 1 in the first embodiment can be used for the container 150 with a cover by joining the main body 2 along the edge 103. Figure 3 B is a schematic representation Figure 3 A cross-sectional view of the longitudinal section of the line CC of FIG. In addition, as the container 101, it is more preferable to use a container having flexibility at the edge 103 of the opening 102. However, these contents do not prohibit the container 101 from being a container with low flexibility or almost no flexibility, such as a metal container.

[0049] The cover body 1 of the first embodiment has a bonding region R in the main body 2. In the cover body 1, a region bonded to the edge 103 when the cover body 1 is viewed from above is referred to as the bonding region R. Figure 1 In A, the area corresponding to the joining area R in the main body 2 is the area on the opposite surface 73 side of the portion indicated by hatching. Figure 1 A is a plan view schematically showing an example of the cover body 1 according to the first embodiment.

[0050] Figure 1 In the example of A, the joining region R corresponds to a region formed in a substantially annular shape along the opening 102 in a shape corresponding to the opening 102 of the container 101 .

[0051] like Figure 1 A. Figure 1 As shown in B, the main body 2 of the cover body 1 of the first embodiment includes a joint region corresponding portion 5A and a cover region corresponding portion 5B. Figure 1 B is a schematic representation Figure 1 A is a cross-sectional view of a longitudinal section along line AA in FIG.

[0052] (Joint area corresponding part)

[0053] The joining area corresponding portion 5A is a portion of the cover 1 corresponding to the area joining the container 101 along the edge 103 of the container 101. That is, the joining area corresponding portion 5A is a portion of the cover 1 corresponding to the joining area R (the area facing the edge 103 of the container 101 and joining the container 101). In the container 150 with a cover, the joining area corresponding portion 5A is a portion of the cover 1 that forms the joining portion 151 between the cover 1 and the container 101. Specifically, when the cover 1 is viewed from above ( Figure 1In the example of A, the Z-axis direction (up and down direction) is the viewing direction), and the portion forming the joining region R is defined as the joining region corresponding portion 5A. The joining region corresponding portion 5A is generally as follows Figure 1 In particular, Figure 1 As shown in A, when the edge 103 of the container 101 is formed into a substantially circular ring shape, the joining region R is a circular ring shape, and the joining region corresponding portion 5A is also substantially circular ring-shaped when the cover 1 is viewed from above. The outer edge of the joining region corresponding portion 5A is determined according to the position of the outer edge of the joining region R. The outer edge of the joining region corresponding portion 5A may be located at the outer periphery of the cover 1, or may be located at the outer periphery of the cover 1. Figure 1 As shown in the example of A, it is located inside the outer periphery of the cover 1. When the joint region R between the cover 1 and the container 101 is not continuously formed, the portion sandwiched by the adjacent joint regions R and facing the edge 103 is also included in the joint region corresponding portion 5A described later.

[0054] (corresponding part of cover area)

[0055] The lid region corresponding portion 5B is a portion of the lid body 1 located inside the joint region corresponding portion 5A. That is, the lid region corresponding portion 5B is located inside the inner edge of the joint region corresponding portion 5A, and the outer peripheral end of the lid region corresponding portion 5B is common to the inner edge of the joint region corresponding portion 5A. The lid region corresponding portion 5B is a portion that covers the opening 102 in the container 150 with a lid. In addition, as Figure 1 As shown in the example of A, the portion of the cover body 1 located outside the outer peripheral end of the cover region corresponding portion 5B is referred to as the outer region corresponding portion 5C.

[0056] (Insert part)

[0057] The main body 2 has an insertion portion 6 configured to form an insertion hole. The insertion hole HL is a hole through which a component can be inserted from the outside. A specific example of a component inserted from the outside is a straw. Figure 2 A. Figure 2 As shown in B, the insertion hole HL is formed by applying stress from the outside to the insertion portion 6 along the thickness direction of the body 2. In this case, the hole cover portion 7 is pushed open, and the hole-shaped opening portion formed by being pushed open becomes the insertion hole HL. Figure 2 A is a diagram showing a state in which the insertion hole HL is formed by applying stress downward (in the −Z direction) from the outside to the insertion portion 6 in the cover body 1 of the first embodiment. Figure 2 B is a schematic representation Figure 2 A is a cross-sectional view of a longitudinal section along line BB in FIG.

[0058] The position of the insertion portion 6 is not particularly limited, but Figure 1In the example of A, it is formed in the cover region corresponding portion 5B. In addition, in this example, it is formed near the center CT of the cover region corresponding portion 5B. In addition, the arrangement of the cutout portion 10 described later forming the insertion portion 6 is not limited to Figure 1 An example of A. It can also be, so that Figure 1 The position of the incision portion 10 is defined in a state where the insertion portion 6 shown in A is appropriately rotated.

[0059] The insertion portion 6 includes a hole cover portion 7 and a fragile portion 8 .

[0060] (Hole cover)

[0061] The hole cover 7 is composed of a portion that covers the insertion hole HL. The hole cover 7 is a portion surrounded by a portion (hinge corresponding portion 9) that becomes a hinge portion when the insertion hole HL is formed (when pushed open) and a fragile portion 8 described later. Figure 1 In the example of A, four are formed around the non-penetrating portion 11 forming the fragile portion 8. In this example, the two hole cover portions 7 are divided by the cut-in portion 10 as a boundary. In addition, in the case of forming the insertion hole HL, not only the case where the hole cover portion 7 is rotated at a fixed angle with a specific position as an axis, but also the case where the hole cover portion 7 is gradually bent and displaced by being recessed toward the top end portion 7A side of the hole cover portion 7 with the hinge corresponding portion 9 as the base end (the base end of the hole cover portion 7).

[0062] (Vulnerability Department)

[0063] The fragile portion 8 is a portion that forms at least a portion of the outer periphery 70 of the hole cover portion 7, and is a portion that forms the outline of the hole cover portion 7 together with the hinge corresponding portion 9. The fragile portion 8 has a cut-in portion 10 and a non-penetrating portion 11. When a force is applied to the fragile portion 8 to push up or press down to form a split portion on the main body 2, the fragile portion 8 guides the position where the split occurs (split position). For example, Figure 1 In the example of A, if a force is applied to press the portion corresponding to the insertion portion 6 from the exposed surface 72 side to the opposite surface 73 side, as shown in FIG. Figure 2 A. Figure 2 As shown in B, the non-penetrating portion 11 is destroyed to produce a fracture surface 12, and splitting occurs along the fracture surface 12 and in a manner forming a cross section of the cut-in portion 10, and the hole cover portion 7 is pressed down to form the insertion hole HL (becoming a state where the insertion hole HL is opened).

[0064] (Incision)

[0065] The cutout portion 10 penetrates the main body 2 in the thickness direction (Z-axis direction) of the main body 2. A plurality of cutout portions 10 are formed in the main body 2. Figure 1 In the example of A, each cut-in portion 10 is formed in a manner that becomes a straight cut-in line, but this is only an example. Figure 1In A of FIG. 1 , for the sake of convenience, the cut-in portion 10 is illustrated in a state where the cut-in portion 10 has a relatively large width. Figures 2 to 15 The same is true in .

[0066] In the cover body 1 of the first embodiment, for example, Figure 4 C. Figure 4 As shown in D, the cut-in portion 10 can also be formed into a curved shape. In addition, the cut-in portion 10 is radially arranged around the non-penetrating portion 11 described later, but this is only an example and is not limited to this configuration. However, from the viewpoint of easily forming a structure in which at least a part of the fracture surface is located at the top end of the hole cover portion 7 as described later, it is preferred that the cut-in portion 10 is radially arranged around the non-penetrating portion 11. The cut-in portion 10 has a structure (penetrating structure) that cuts from one face (exposed face 72) of the main body 2 along the up and down direction (thickness direction, Z-axis direction) to another face (opposite face 73). The cut-in portion 10 has a peripheral portion 20 and an end portion 21. The peripheral portion 20 extends along the long side direction of the cut-in portion 10, and the end portion 21 is formed at the cut-in end (the end of the peripheral portion 20). In addition, the cut-in portion 10 can function as an exhaust portion. Here, the exhaust portion refers to a portion that allows gas to pass from one face side of the main body 2 to the other face side (from the opposite face 73 side to the exposed face 72 side).

[0067] In addition, the fragile portion 8 is formed with at least two cut-in portions 10 formed around the non-penetrating portion 11, such as Figure 4 As shown in A, it is preferably formed into a structure having three or more cut-in portions 10. If at least three cut-in portions 10 are formed around the non-penetrating portion 11, the following state can be formed: the hole cover portion 7 is formed in a manner surrounding the position corresponding to the non-penetrating portion 11 in a state where the fracture surface 12 formed by the destruction of the non-penetrating portion 11 is located at the top end portion 7A of the hole cover portion 7, and when the straw or the like is inserted into the insertion hole HL, it is easy to evenly support the straw or the like through the hole cover portion 7. In addition, in this viewpoint, as Figure 1 As shown in A, four cut-in portions 10 may be formed around the non-penetrating portion 11, or as shown in Figure 4 As shown in FIG. 1B, five or more cut-in portions 10 are formed around the non-penetrating portion 11 ( Figure 4 In the example of B, six cutouts 10 are formed.

[0068] (Non-penetrating part)

[0069] The non-penetrating portion 11 is a portion of the fragile portion 8 that prevents the body 2 from being penetrated. The non-penetrating portion 11 can be defined as a portion (fracture surface) of the outer peripheral edge 70 of the hole cover portion 7 where the hinge corresponding portion 9 and the peripheral surface portion 20 are to be formed. Figure 1In the example of A, the arrangement of the non-penetrating portion 11 is specified so that the cutout portion 10 is arranged radially around the non-penetrating portion 11. Figure 1 In the example of A, the non-penetrating portion 11 is formed on the main body 2 as a portion (continuous portion) to avoid forming a cut. However, the non-penetrating portion 11 is not prohibited from being a portion that is cut into the middle of the main body 2 (a portion that forms a half-cut structure that does not penetrate the main body 2 to a predetermined depth), for example, Figure 1 As shown in C, the non-penetrating portion 11 may be a portion having a half-cut structure (half-cut portion 16). Figure 1 C is a cross-sectional view of an embodiment showing a case where the non-penetrating portion 11 has a half-cut structure. In addition, the half-cut portion 16 is not limited to a portion that cuts into half the thickness of the main body 2 in the thickness direction of the main body 2. The half-cut portion 16 includes a structure that cuts into more than half the thickness of the main body 2 while avoiding penetrating the main body 2, and a structure that cuts into the thickness direction of the main body 2 to a degree less than half the thickness of the main body 2.

[0070] The number of non-penetrating portions 11 is Figure 1 In the example of A, the number of non-penetrating portions 11 may be multiple. Figure 4 In the example D, the cutout portion 10 is formed in a curved line shape, and three non-penetrating portions 11 are provided between the end portions 21 of two different cutout portions 10 .

[0071] (Fracture surface)

[0072] When the insertion hole HL is formed by the stress applied to the insertion portion 6, the non-penetrating portion 11 is broken, and the hole cover portion 7 is pushed open, and the broken non-penetrating portion 11 forms a fracture surface 12 on a part of the outer peripheral edge 70 of the hole cover portion 7. The fracture surface 12 in this specification is a surface formed by breaking the component of the main body 2 formed by the stress applied to the insertion portion 6.

[0073] (Relationship between hole cover, non-penetrating part, cut-in part and fracture surface)

[0074] When the insertion hole HL is formed in the cover body 1, the hole cover portion 7 is pushed by the external force applied to the insertion portion 6 (the top end portion 7A of the hole cover portion 7 is pushed out in the direction of the external force), and when the top end portion 7A of the hole cover portion 7 is pushed out, the hole cover portion 7 is displaced together with the fracture surface 12. In the cover body 1 of the first embodiment, at this time, at least a part of the fracture surface 12 is located at the top end portion 7A of the hole cover portion 7. The fracture surface 12 is formed into a shape corresponding to the fracture state of the non-penetrating portion 11. Figure 1In the example of A, a state is formed in which the fracture surface 12 is formed at the top end portion 7A of the hole cover portion 7. For example, when the non-penetrating portion 11 is cut into a cross and the fracture surface 12 is formed, the top end portion 7A of each hole cover portion 7 is formed in an angular shape (pointed shape), and the end surface of the portion corresponding to the top end portion 7A in the outer peripheral edge 70 of the hole cover portion 7 is formed by the fracture surface 12.

[0075] In the cover body 1 of the first embodiment, when the non-penetrating portion 11 is broken to form a plurality of fracture surfaces 12, at least a portion of at least one fracture surface 12 is located at the top end portion 7A of the hole cover portion 7. For example, when the non-penetrating portion 11 is broken to form two fracture surfaces 12, at least one fracture surface 12 may be formed in such a manner that a portion of the fracture surface 12 is located at the top end portion 7A of the hole cover portion 7.

[0076] like Figure 1 As shown in A, when the insertion portion 6 has a plurality of hole cover portions 7 and when the insertion hole HL is formed, it is sufficient to form the fracture surface 12 at the top end portion 7A of at least one hole cover portion 7. However, for each hole cover portion 7, the fracture surface 12 is formed at a portion of the outer peripheral edge 70 of the hole cover portion 7.

[0077] (Material of the main body)

[0078] The material of the main body 2 is preferably formed of a paper material from the viewpoint of reducing the environmental burden. As paper materials, there can be cited: the so-called paper obtained by taking the pulp of the fiber raw material into a mesh and drying or pressing and drying it to make it into a sheet; the so-called air-laid sheet obtained by weaving the hollow fiber raw material by air flow and fixing the fibers of the woven body to each other by a bonding material, wherein the hollow fiber raw material is a crushed pulp obtained by crushing the raw material sheet composed of pulp fibers, etc. by a crusher; and the following raw materials and materials formed by stacking multiple sheets of these raw materials, etc., in addition to the so-called paper materials made by bonding plant fibers and other fibers, these raw materials also include chemical fiber paper, synthetic paper, water-resistant paper, coated paper, substitute paper, parchment paper, wool paper, glass fiber paper, stone paper, ceramic paper, etc. In addition, as a paper material, in addition to a material consisting only of pulp, a material including non-pulp natural fibers, synthetic fibers, recycled fibers and other fibers may also be used, but preferably, pulp contains 50% or more by mass, more preferably, contains 70% or more by mass, still preferably, contains 80% or more by mass, and particularly preferably, it is composed of 100% by mass of pulp. Paper materials can use films of synthetic resins and natural resins, non-woven fabrics, wood foils and other wood materials, and can also use composite materials with materials such as aluminum foil, but when using composite materials, the composite material as a whole preferably contains 50% or more by mass of pulp, and particularly preferably, contains 80% or more by mass of pulp. The higher the pulp content ratio, the easier it is for the paper material to be biodegraded, which is preferred.

[0079] In addition, although the main body 2 is preferably formed entirely of the above-mentioned paper material, it is not prohibited to form part or all of it from a material different from the paper material. For example, the main body 2 can also be formed by a laminate of a paper material and a resin film material.

[0080] [1-2 Function and effect]

[0081] In a conventional container with a lid in which a lid is attached to the container, there is a problem that when a user moves the container with the lid, the contents may leak out from the insertion portion due to the vibration of the container with the lid during movement. In particular, when the contents are drinks that generate gas, such as carbonated beverages, there is a concern that when the gas is released from the insertion portion, the contents may be ejected from the insertion portion to the outside together with the gas. Therefore, in terms of suppressing the ejection of the contents from the lid, the container with the lid still has room for improvement.

[0082] According to the cover body 1 of the first embodiment, the insertion portion 6 is structured as follows: it includes the hole cover portion 7 and the fragile portion 8, and the fragile portion 8 includes the cut-in portion 10 and the non-penetrating portion 11. Furthermore, the non-penetrating portion 11 is formed in such a manner that a fracture surface 12 generated by the destruction of the non-penetrating portion 11 when the insertion hole HL is formed is located at the top end portion 7A of the hole cover portion 7.

[0083] However, when the insertion portion has a hole cover and a cut-in portion, when the contents are ejected from the cover, there is a high risk that the contents will also leak out from the portion of the cut-in portion where gas is likely to leak out. The portion on the top end side of the hole cover in the cut-in portion is a portion that is likely to be displaced by external stress, so the gap in the cut-in portion is likely to expand, and there is a high possibility that it will become a portion where gas is likely to leak out.

[0084] In this regard, according to the cover body 1 of the first embodiment, before the opening forms the insertion hole HL (when observing the state of the cover body 1 in the stage from the state after the insertion hole HL is opened to the state after the insertion hole HL is formed), a non-penetration portion 11 is formed in a portion where gas easily leaks out, such as a portion on the top end portion 7A side of the hole cover portion 7, thereby preventing the contents from spraying out of the cover body 1 in the state of the container 150 with the cover body.

[0085] In addition, when the cover is formed of a paper material, the end surface of the paper material forming the main body is easily exposed at the insertion part, and there is a concern that moisture may penetrate from the end surface into the fibers constituting the paper material, thereby significantly damaging the toughness of the cover and reducing the strength of the insertion part. In particular, if moisture intrudes near the top end of the hole cover forming the insertion part, collapse may occur near the top end of the hole cover (the toughness of the paper material is particularly weak near the top end of the hole cover), and the gap may expand near the top end of the hole cover, which may further worsen the possibility of the contents being ejected from the cover.

[0086] In this regard, according to the cover body 1 of the first embodiment, the non-penetrating portion 11 after being broken when the insertion hole HL is formed forms a fracture surface 12 at a part of the outer peripheral edge 70 of the hole cover portion 7. At this time, at least a part of the fracture surface 12 is located at the top end 7A of the hole cover portion 7. The non-penetrating portion 11 is formed in such a manner that the non-penetrating portion 11 is formed at a part of the hole cover portion 7 that becomes the top end 7A in the stage before the opening forms the insertion hole HL. Therefore, according to the cover body 1 of the first embodiment, even if the cover body 1 is formed of a paper material, the toughness of the paper material is unlikely to weaken near the top end 7A of the hole cover portion 7, and the possibility of the contents being ejected from the cover body 1 near the top end 7A of the hole cover portion 7 can be suppressed.

[0087] Next, a modification of the first embodiment will be described.

[0088] [1-3 Modification Example]

[0089] (Variant 1)

[0090] In the cover body 1 of the first embodiment, when the main body 2 is formed with the insertion portion 6, the layout of the fragile portion 8 forming the insertion portion 6 is not limited to Figure 1 For example, A can also be Figure 4 The layout shown in A to G (Variant 1). Figure 4 A to G are diagrams for explaining one example of the cover body 1 according to the first modification of the first embodiment.

[0091] (Layout of the vulnerable part)

[0092] The layout of the fragile portion 8 can be determined based on various conditions such as the function of the fragile portion 8 and the appearance. Figure 4 A. Figure 4 In the example of the fragile portion 8 shown in the example B, the non-penetrating portion 11 is formed at one place, and the cut-in portion 10 is formed at one place. Figure 4 A total of three are formed in Figure 4 A total of six are formed in B. Figure 4 A. Figure 4 In the example of B, the cutout portions 10 are formed so as to extend radially in different directions from the non-penetrating portion 11 .

[0093] In addition, Figure 4 C. Figure 4 In the example shown in D, the fragile portion 8 is formed into a C-shape (similar to the shape of the letter C) by a plurality of cut-in portions 10 and non-penetrating portions 11. Figure 4 As shown in the example of C, the non-penetrating portion 11 may be formed at one location, such as Figure 4 As shown in D, the non-penetrating portion 11 may be formed at a plurality of locations.

[0094] exist Figure 4 E. Figure 4 In the example shown in F of FIG. 1 , the fragile portion 8 is formed into an N-shape (similar to the shape of the letter N) and a W-shape (a shape similar to the letter W) by a plurality of cutouts 10 and non-penetrating portions 11. In these examples, the non-penetrating portion 11 is formed at or near a position where the directions in which two cutouts 10 with different long side directions extend intersect. Figure 4 E. Figure 4 In any example of F, the non-penetrating portion 11 is also formed at a plurality of locations.

[0095] exist Figure 4 In the example shown in G, the fragile portion 8 is formed by a plurality of cutout portions 10 and non-penetrating portions 11 so that the portion corresponding to the tip portion 7A is formed into a linear U-shape facing laterally (a shape similar to the letter U placed sideways). Figure 4 In the example of G, the portion corresponding to the distal end portion 7A is formed entirely by the non-penetrating portion 11 , and the non-penetrating portion 11 serves as the half-cut portion 16 .

[0096] (Variant 2)

[0097] In the cover body 1 of the first embodiment, when the fragile portion 8 has a plurality of non-penetrating portions 11, when the insertion hole HL is formed, all of the non-penetrating portions 11 may be broken by applying stress from the outside along the thickness direction of the main body 2 relative to the insertion portion 6, but it is sufficient to break at least one of the non-penetrating portions 11. Figure 4 In the fragile portion 8 shown in D, there are three non-penetrating portions 11, but if the non-penetrating portion 11 located on the top end portion 7A side of the hole cover portion 7 is broken when the insertion hole HL is formed, one or both of the two non-penetrating portions 11 located closer to the hinge corresponding portion 9 of the hole cover portion 7 than the non-penetrating portion 11 may not be broken. In this case, a part of the hole cover portion 7 (the part on the top end portion 7A side of the hole cover portion 7) is also pushed in, and the insertion hole HL can be formed by opening with a certain size.

[0098] (Variant 3)

[0099] In the cover body 1 of the first embodiment, as Figure 4 As shown in H, when two different cutting portions 10 are respectively set as the first cutting portion 10A and the second cutting portion 10B, the configuration of at least one group of the first cutting portion 10A and the second cutting portion 10B can also be a configuration in which a non-penetrating portion 11 is formed between the end portion 21 of the first cutting portion 10A and the peripheral surface portion 20 of the second cutting portion 10B (variant example 3). Figure 4 H is a diagram for explaining an example of the cover body 1 according to the third modification of the first embodiment.

[0100] (Functions and Effects of Modification 3)

[0101] When the insertion hole HL is formed in the cover body 1, the non-penetrating portion 11 is split in a direction away from the end 21 of the cut-in portion 10 by the stress applied to the insertion portion 6, and a fracture surface 12 is formed. At this time, in the cover body 1, the fracture surface 12 is mostly formed in a manner along the long side direction of the cut-in portion 10, but when the main body 2 has a paper material, there is a possibility that the fracture direction of the non-penetrating portion 11 becomes an undesirable direction depending on the orientation of the fibers contained in the paper material forming the main body 2, and there is a concern that the shape of the hole cover portion 7 becomes an undesirable shape. In view of this, according to variant example 3 of the first embodiment, a non-penetration portion 11 is formed between the end portion 21 of the first cut-in portion 10A and the peripheral surface portion 20 of the second cut-in portion 10B. As a result, when the non-penetration portion 11 is cracked in a direction away from the end portion 21 with the end portion 21 of the first cut-in portion 10A as the starting point, even if the fracture direction of the non-penetration portion 11 is slightly biased in an undesirable direction, the fracture surface 12 formed by the fracture of the non-penetration portion 11 will merge with the peripheral surface portion 20 of the second cut-in portion 10B, thereby suppressing the hidden danger of the shape of the hole cover portion 7 becoming an undesirable shape.

[0102] (Variant 4)

[0103] In the cover body 1 of the first embodiment, as Figure 5 A. Figure 5 As shown in B, a raised portion 17 may be formed on the main body 2 (variation 4). Figure 5 A. Figure 5 B are respectively a plan view and a cross-sectional view for explaining an example of the cover body 1 of the modification 4 of the first embodiment. The raised portion 17 is a portion raised toward the exposed surface 72. In addition, Figure 5 A. Figure 5 In B, the portion corresponding to the raised portion 17 in the opposing surface 73 becomes a recessed portion. In this case, it is preferable that the insertion portion is formed in the formation area of ​​the raised portion 17 when the main body 2 is viewed from above (when the thickness direction of the main body 2 is the viewing direction).

[0104] (Variant 5)

[0105] In the cover body 1 of the first embodiment, as Fig.12 A. Fig.12 B. Fig.13 A. Fig.13 As shown in B, a window portion 51 may be formed in the main body 2 (modification example 5). Fig.12 A. Fig.13 A is a top view of an example of a cover body for explaining a modification example 5 of the first embodiment. Fig.12 B. Fig.13B are cross-sectional views for explaining an example of the cover body 1 according to the fifth modification of the first embodiment, Fig.12 B is a schematic representation Fig.12 A sectional view of the state of the JJ line longitudinal section, Fig.13 B is a schematic representation Fig.13 A is a cross-sectional view of the longitudinal section of line KK in FIG.

[0106] The window portion 51 has an opening hole 52 formed on a part of the main body 2, and a window cover material that can allow light to pass through and covers at least a part of the formation area of ​​the opening hole 52 (preferably, the entire area of ​​the formation area of ​​the opening hole 52). The window cover material can exemplify transparent and translucent materials. As such materials, colored or non-colored transparent or translucent resin films, celophane paper, glass paper, etc., and transparent paper formed of nanocellulose (cellulose microfibers) as a transparent paper material can be exemplified. The configuration of the window cover material is achieved, for example, by pasting the window cover material around the opening portion 52 in a state in which the opening portion 52 is configured to cover the opening portion 52. By providing a window portion 51 on which a window component composed of a transparent and translucent material is pasted, the contents of the container 101 can be confirmed when the cover body 1 is in a state of being joined to the container 101 (in a closed state).

[0107] In addition, the shape of the window portion 51 is not limited to the shape shown in the figure, and can be formed into any size and shape. Fig.12 A. Fig.12 The fragile portion 8 may be avoided as shown in B, or the fragile portion 8 may be formed as shown in Fig.13 A. Fig.13 As shown in FIG. 1B , the fragile portion 8 is provided in the region where the window portion 51 is formed. Fig.13 A. Fig.13 As shown in FIG. 1B , when the fragile portion 8 is provided in the region where the window portion 51 is formed, it is preferable to form a reinforcing member 53 having a predetermined size including the fragile portion 8 by affixing it to the window portion 51 from the viewpoint of preventing the film or the like constituting the window portion 51 from being broken when a straw or the like is inserted into the fragile portion 8. The material used for the reinforcing member 53 can be arbitrarily selected from conventionally known materials, but from the viewpoint of reducing environmental burden, a paper material is preferably used.

[0108] [2. Second Embodiment]

[0109] [2-1 Composition]

[0110] like Figure 6 A. Figure 6 As shown in FIG. 8B , the cover body 1 according to the second embodiment includes a main body 2 , and an insertion portion 6 is formed in the main body 2 . Figure 6A is a plan view schematically showing an example of the cover body 1 according to the second embodiment. Figure 6 B is a schematic representation Figure 6 A cross-sectional view of the state of the longitudinal section along the line EE in A. In the cover body 1 of the second embodiment, the definitions and structures of the joint area corresponding part 5A, the cover area corresponding part 5B, and the outer area corresponding part 5C of the main body 2 and the material of the main body 2 are the same as those of the first embodiment, so the description is omitted. In addition, the insertion part 6 has a hole cover part 7 and a fragile part 8. The insertion part 6 is formed in the same way as the first embodiment, except that the hole cover part 7 has a structure in which the corner part 13 is provided and the formation position of at least a part of the fracture surface 12 has a position corresponding to the corner part 13. The description of the same structure as the first embodiment is omitted in the second embodiment.

[0111] (Hole cover)

[0112] In the cover body 1 of the second embodiment, the hole cover portion 7 of the insertion portion 6 has a corner portion 13 when the hole cover portion 7 is viewed from above. In addition, when the insertion portion 6 has a plurality of hole cover portions 7, the corner portion 13 may be formed with respect to all of the hole cover portions 7, or may be formed in a part of the hole cover portions 7. Figure 6 In the example A, two hole cover portions 7 are formed, but this is only an example.

[0113] (Corner)

[0114] The corner portion 13 is an angular portion formed in the hole cover portion 7 and corresponding to the convex contour portion of the hole cover portion 7 . Figure 6 In the example of A, the hole cover portion 7 is formed into a rectangular shape with the portions corresponding to the fragile portion 8 and the hinge corresponding portion 9 as four sides, and the portion corresponding to the corner position of the rectangle formed by the fragile portion 8 becomes the corner portion 13. In addition, the corner portion 13 may be formed into a substantially angular shape. Therefore, within the range of the corner portion 13, in addition to the portion formed into a pointed shape, even if the portion corresponding to the corner position of the rectangle formed by the fragile portion 8 is formed into a slightly rounded shape, it is also included in the corner portion 13, and even if the portion corresponding to the corner position of the rectangle formed by the fragile portion 8 is formed into a slightly flat surface shape, it is also included in the corner portion 13.

[0115] (Vulnerability Department)

[0116] The fragile portion 8 has a cutout portion 10 and a non-penetrating portion 11 similarly to the configuration shown in the first embodiment. Figure 6 The layout of the fragile portion 8 shown in the example of A is different from that of the first embodiment. Figure 1 The layout of the fragile portion 8 in the cover body 1 of the second embodiment is not limited to the layout shown in A, but is formed in an H shape, and is composed of a combination of three cut-out portions 10 and two non-penetrating portions 11. Figure 6 Example of A.

[0117] (Fracture surface)

[0118] like Figure 7 A. Figure 7 As shown in FIG. 1B, in the cover body 1 of the second embodiment, as in the first embodiment, an insertion hole HL is formed by applying stress from the outside along the thickness direction (Z-axis direction) of the main body 2 relative to the insertion portion 6. When the stress is applied, the non-penetrating portion 11 is broken, and the top end portion 7A side of the hole cover portion 7 is pushed out in the direction of the stress applied from the outside. In addition, the non-penetrating portion 11 after the break forms a fracture surface 12 on a part of the outer peripheral edge 70 of the hole cover portion 7.

[0119] Furthermore, in the cover body 1 of the second embodiment, at least a portion of the fracture surface 12 is located at the corner portion 13 of the hole cover portion 7. Figure 7 In the example of A, as the tip portion 7A side of the hole cover portion 7 is pushed out, the hole cover portion 7 is displaced together with the fracture surface 12 .

[0120] In the example of the cover body 1 of the second embodiment, two parallel cutouts 10 are formed, and a cutout 10 is formed at a position between the two cutouts 10 such that the direction perpendicular to the long side direction of the two cutouts 10 is the long side direction. Furthermore, when the cutout formed at a position between the two parallel cutouts 10 is regarded as the first cutout, and the two cutouts 10 are regarded as the second cutout, a non-penetrating portion 11 is formed between the end of the first cutout and the peripheral surface of the second cutout. However, this is only an example, and it is not prohibited to avoid forming the non-penetrating portion 11 between the end of one cutout and the peripheral surface of another cutout. However, as described later, in the case where the main body 2 of the cover body 1 has a paper material, it is preferable to form the non-penetrating portion 11 between the end of one cutout and the peripheral surface of the other cutout (the end of the first cutout and the peripheral surface of the second cutout).

[0121] Furthermore, Modifications 1 to 4 described in the first embodiment can also be applied to the second embodiment.

[0122] [2-2 Action and Effect]

[0123] In a cover body that can be used for a container with a cover body, as described in the first embodiment, when the insertion portion has a hole cover portion and a cut-in portion, when the gas in the container is ejected from the cover body, there is a high risk that the contents will also leak out from the portion of the cut-in portion where the gas is likely to leak out. In the case where the hole cover portion of the cut-in portion is formed with a corner portion, the corner portion of the hole cover portion is a portion that is easily displaced due to the influence of external stress, so the gap of the cut-in portion is likely to expand near the corner portion, and there is a high possibility that it will become a portion where gas is likely to leak out. According to the cover body 1 of the second embodiment, a portion where gas is likely to leak out, such as the corner portion of the hole cover portion, forms a non-penetrating portion, so it is possible to suppress the contents from being ejected from the cover body in the state of the container with a cover body.

[0124] According to the cover body 1 of the second embodiment, a non-penetrating portion 11 is formed in the portion of the hole cover portion 7 that becomes the corner portion 13, whereby even when the cover body 1 is formed of a paper material, the toughness of the hole cover portion 7 near the corner portion 13 is unlikely to weaken, thereby preventing the contents from spraying out of the cover body 1 near the corner portion 13 of the hole cover portion 7.

[0125] [2-3 Modification Example]

[0126] (Variant 1)

[0127] In the cover body 1 of the second embodiment, when the main body 2 is formed with the insertion portion 6, the layout of the fragile portion 8 forming the insertion portion 6 is not limited to Figure 6 For example, A can also be Figure 8 The layout shown in A to E (Variant 1). Figure 8 A to E are views for explaining one example of the cover body 1 according to the first modification of the second embodiment.

[0128] (Layout of the vulnerable part)

[0129] The layout of the fragile portion 8 can be determined based on various conditions such as the function of the fragile portion 8 and the appearance. Figure 8 In the example of the fragile portion 8 shown in Examples A to E of FIG. 1 , the non-penetrating portions 11 are formed at two locations, and the cutout portions 10 are formed at three locations in total. Figure 8 In the examples shown in A to E, the fragile portion 8 is formed by a plurality of cut-in portions 10 and non-penetrating portions 11 so that the portion corresponding to the top portion 7A is formed into a linear U-shape facing the horizontal direction (a shape similar to the letter U placed horizontally). However, Figure 8 In D, it presents a shape closer to a horseshoe.

[0130] Figure 8In the cover body 1 of the modification example 1 of the first embodiment shown in A to D, when two different cutouts 10 are respectively set as the first cutout 10A and the second cutout 10B, at least one set of the first cutout 10A and the second cutout 10B is arranged such that the non-penetrating portion 11 is formed between the end 21 of the first cutout 10A and the peripheral surface 20 of the second cutout 10B. In this case, the same functions and effects as those shown in the functions and effects of the modification example 3 of the first embodiment can be obtained.

[0131] In addition, in the cover body 1 of the modification example 1 of the second embodiment, as Figure 8 As shown in FIG. 8E , the non-penetrating portion 11 may be formed so as to avoid being formed between the peripheral surface portion 20 and the other end portion 21 of one cutout portion 10 .

[0132] [3. Implementation Method 3]

[0133] [3-1Example 1]

[0134] like Fig. 9 A. Fig. 9 As shown in B of FIG. 3 , the cover body 1 of the third embodiment includes a main body 50 and a side wall 31. This example is referred to as a first example of the third embodiment. Fig. 9 A. Fig. 9 B is a diagram showing an example of a first embodiment of the cover body 1 according to the third embodiment.

[0135] (main body)

[0136] The main body 50 has a top surface 32. Fig. 9 A. Fig. 9 In the example of B, it has a top portion 32 and an outer peripheral portion 33. Fig. 9 A. Fig. 9 In the example of B, the material of the main body 50 can be formed in the same manner as the material of the main body 2 described in the first embodiment and the second embodiment, and thus the description thereof is omitted.

[0137] (Top face)

[0138] The top surface portion 32 corresponds to the portion that covers the opening portion 102 when the cover body 1 is installed on the container 101, and has a structure having the insertion portion 6 in the same manner as the cover region corresponding portion 5B of the main body 2 in the first and second embodiments, and can be configured in the same manner as the cover region corresponding portion 5B of the main body 2 in the first and second embodiments. Therefore, in the description of the third embodiment, the description of the insertion portion 6 is omitted. In addition, Fig. 9 A. Fig. 9 In the example of B, the insertion portion 6 and Figure 1The example of the case where the insertion portion 6 shown in A is similarly configured is described as an example. Fig.10 A. Fig.10 B. Fig.11 A. Fig.11 The same is true for B.

[0139] (peripheral part)

[0140] The outer peripheral portion 33 is configured as a portion extending in a direction away from the base end 33A with the outer peripheral edge 32A of the top surface portion 32 as the base end 33A. Fig. 9 In the example of B, the outer peripheral portion 33 is a portion (rising portion 34) rising from the outer peripheral edge 32A of the top surface portion 32 in the direction (upward direction) from the opposing surface 73 toward the exposed surface 72 side or in the oblique upward direction. The rising portion 34 is formed to be substantially tapered (a shape with a tapered tip) from its upper end (top end 33B) toward the lower end (base end 33A).

[0141] (Side wall)

[0142] The cover body 1 is provided with a side wall 31 so as to surround the outer periphery of the top surface portion 32. Fig. 9 A. Fig. 9 In the example of B, the side wall 31 is provided so as to surround the outer side surface 35 of the outer peripheral portion 33. At least a portion of the side wall 31 faces the outer side surface 35. Fig. 9 A. Fig. 9 In the case of B, the portion of the side wall 31 facing the outer side surface 35 of the outer peripheral portion 33 (the outer side surface of the rising portion 34) becomes the upper side wall 37, and the portion located below the upper side wall 37 becomes the lower side wall 38. The lower side wall 38 extends downwardly compared to the top surface portion 32, and at least a part of the extended portion becomes a portion for locking the cover body 1 and the container 101 when the cover body 1 is installed on the container 101.

[0143] The side wall 31 is preferably provided with a folded portion 39 that covers the upper end (top end 33B) of the outer peripheral portion 33 with the upper end 37A of the upper side wall 37 as the base end and extends to the inner side surface 36 of the outer peripheral portion 33. Fig. 9 A. Fig. 9 In the example of B, the folded portion 39 is provided so as to surround the inner side surface 36 of the outer peripheral portion 33 .

[0144] The side wall 31 is formed similarly to the rising portion 34, and is formed into a generally tapered shape (a tapered shape) from its upper end (top end) (upper end 37A of the upper side wall) toward the lower end (base end) (lower end 38A of the lower side wall). The lower side wall 38 is formed into a tapered shape toward the downward direction, so that when the cover body 1 is installed on the container 101, the cover body 1 and the container 101 can be firmly locked.

[0145] (Locking structure forming part)

[0146] The locking structure forming portion 40 is a portion that forms a structure for locking the cover body 1 and the container 101 when the cover body 1 is attached to the container 101 . Fig. 9 A. Fig. 9 In the example of B, the locking structure forming portion 40 has a lower side wall 38. The locking structure forming portion 40 may also have a portion (upper side portion 41) from the outer peripheral edge 32A of the top surface portion 32 to a portion slightly inside the outer peripheral edge 32A. The upper side portion 41 can be specified as a portion that can contact the edge 103 of the container 101 when the cover 1 is installed on the container 101.

[0147] [3-2 Example 2]

[0148] like Fig.10 A. Fig.10 As shown in B, the cover body 1 of the third embodiment may also be formed with a main body and a side wall. This example is referred to as the second example of the third embodiment. Fig.10 A. Fig.10 B is a diagram showing an example of a second embodiment of the cover body 1 according to the third embodiment.

[0149] (Top face)

[0150] The main body 50 has a top surface portion 32 and an outer peripheral portion 33. The top surface portion 32 is the same as the first example of the second embodiment, and therefore description thereof is omitted.

[0151] (peripheral part)

[0152] The outer peripheral portion 33 is configured as a portion extending in a direction away from the base end 33A with the outer peripheral edge 32A of the top surface portion 32 as the base end 33A, similarly to the first example of the second embodiment. Fig.10 A. Fig.10 In the example of B, the outer peripheral portion 33 is a portion (hanging portion 42) hanging down from the outer peripheral edge 32A of the top surface portion 32 in the direction (downward direction) from the exposed surface 72 toward the opposite surface 73 side or in the oblique downward direction. The hanging portion 42 is formed to be substantially tapered (a shape with a tapered tip) from its upper end (base end) (base end 33A of the outer peripheral portion 33) toward the lower end (top end) (top end 33B of the outer peripheral portion 33).

[0153] (Side wall)

[0154] The side wall 31 in the second example of the third embodiment is arranged so as to surround the outer periphery of the top surface portion 32. Fig.10 A. Fig.10In the side wall 31 shown in the example B, the portion of the side wall 31 facing the outer side surface 35 of the outer peripheral portion 33 (the outer side surface of the hanging portion 42) becomes the lower side wall 38, and the portion located above the lower side wall 38 becomes the upper side wall 37. The upper side wall 37 extends upward compared to the top surface portion 32.

[0155] The side wall 31 is preferably provided with a folded portion 39 that covers the lower end of the outer peripheral portion 33 and extends to the inner side surface 36 of the outer peripheral portion 33 with the lower end 38A of the lower side wall 38 as the base end. Fig. 9 A. Fig. 9 In the example of B, the folded portion 39 is provided so as to surround the inner side surface 36 of the outer peripheral portion 33. In addition, the top end of the folded portion 39 may be provided in a non-contact state with respect to the opposite surface 73 side of the top surface portion 32, or in a contact state with respect to the opposite surface 73 side of the top surface portion 32.

[0156] The side wall 31 is formed similarly to the hanging portion 42, and has a substantially tapered shape (a shape with a tapered front end) from its upper end (upper end 37A of the upper side wall 37) toward the lower end (top end) (lower end 38A of the lower side wall 38). Fig.10 Even when the folded portion 39 is formed as in the example B, it is preferable that the folded portion 39 is formed in a tapered shape toward the downward direction.

[0157] like Fig.10 As shown in the example of B, a curling portion (side wall curling portion 45) for curling the member forming the side wall 31 outward may be formed at the upper end 37A of the upper side wall 37, or a portion (bent portion) bent outward may be formed. The upper end 37A of the upper side wall 37 may expose the end surface of the member forming the side wall 31.

[0158] (Locking structure forming part)

[0159] The locking structure forming portion 40 has a lower side wall 38 and an outer peripheral portion 33 ( Fig.10 The stacked structure is a hanging portion 42). Fig.10 In the example of A, the locking structure forming portion 40 further includes a folded portion 39, and has a stacked structure of the folded portion 39, the outer peripheral portion 33, and the lower side wall 38. In addition, the locking structure forming portion 40 may also include a portion (upper side portion 41) from the outer peripheral edge 32A of the top surface portion 32 to a portion slightly inside the outer peripheral edge 32A, as shown in the first example. Fig.10 The locking structure forming portion 40 shown in the example A, the folded portion 39, the outer peripheral portion 33 ( Fig.10 The stacked structure of the hanging portion 42 and the lower side wall 38 is formed into a tapered shape toward the downward direction, so that when the cover body 1 is installed on the container 101, the cover body 1 and the container 101 can be firmly locked.

[0160] [3-3 Example 3]

[0161] like Fig.14 A. Fig.14 As shown in B, the cover body 1 of the third embodiment is formed with a main body and side walls, and these main body and side walls can be formed by bending a blank material (not shown). This example is called the third example of the third embodiment. Fig.14 A. Fig.14 B is a diagram showing an example of a third embodiment of the cover body 1 of the third embodiment. Fig.15 In the state of the container 150 with a lid shown, the lid 1 is joined to the container 101. In the first and second examples of the third embodiment, the joining of the lid 1 and the container 101 is achieved by bonding (including gluing) the container 101 and the lid 1 to each other. In the third example of the third embodiment, the joining of the lid 1 to the container 101 is not limited to the case where the lid 1 and the container 101 are bonded, but can also be achieved by fitting the lid 1 and the container 101.

[0162] like Fig.14 A. Fig.14 As shown in FIG. 1B, the cover 1 of the third example has a top cover portion 202 as a main body portion and a side wall portion 203 as a side wall. The cover 201 of the third example is formed in a manner that can contact with a container 101 having an opening portion 102 formed at the upper end and an edge portion 103 that forms an upper edge portion of the outer periphery of the opening portion 102. Regarding the contact state between the cover 201 and the container 101, the cover 201 is formed in a manner that can fit with the container 101 having an opening portion 102 formed at the upper end and an edge portion 103 that forms an upper edge portion of the outer periphery of the opening portion 102.

[0163] like Fig.14 A. Fig.14 As shown in FIG. 1B , the cover body 201 preferably has a bent portion 204. The bent portion 204 is a portion connecting the top cover portion 202 and the side wall portion 203. Fig.14 A. Fig.14 In the example of B, the bent portion 204 and the side wall portion 203 are formed continuously (integrally).

[0164] (Top cover)

[0165] The top cover 202 is a portion that covers the opening 102 of the container 101 when the cover 201 is mounted on the container 101 (assembled). The shape of the top cover 202 can be determined according to the shape of the container 101, and can be circular, elliptical, triangular, rectangular, polygonal, chamfered, etc.

[0166] (Bending part)

[0167] The bent portion 204 is formed so as to surround the outer periphery of the top cover 202, and becomes a portion forming a boundary between the top cover 202 and the side wall 203. The bent portion 204 is formed so that when the cover 201 is attached to the container 101, the side wall 203 faces the side wall 104 and the edge 103 of the container 101. Fig.14 A and Fig.14 In the example of B, the bending portion 204 has a bending structure, but the bending portion 204 is not limited to the case of having a bending structure. In addition, "the portion forming the boundary between the top cover portion 202 and the side wall portion 203" includes any one of the cases where the portion itself constitutes the boundary and the case where the boundary is defined by the inside and end of the portion (the case where a portion of the top cover portion 202 and / or the side wall portion 203 also serves as the bending portion 204). The boundary between the top cover portion 202 and the side wall portion 203 is defined at the center of the bending portion 204. In the case where the bending portion 204 has a bending structure (not shown), the bending portion 204 is composed of a portion specified by the range of bending, and the boundary between the top cover portion 202 and the side wall portion 203 is defined at the approximate center of the bending portion 204.

[0168] (Side wall)

[0169] The side wall portion 203 is formed in an annular shape along the outer peripheral end of the top cover portion 202. The cover body 201 of the third example can be formed integrally with the top cover portion 202, the bent portion 204, and the side wall portion 203 by integrally molding a blank material (not shown) for forming the cover body 201.

[0170] (Rough material)

[0171] In the cover 201 of the third example, the blank material is preferably formed of a sheet material having a fiber sheet including fibers formed from a paper material and a resin material. The sheet material may have a structure in which the resin material is attached to at least a portion of the fibers forming the inside of the fiber sheet.

[0172] (Contact Department)

[0173] The cover 201 has a contact portion 274 that contacts the container 101 when the cover 201 is engaged with the container 101. The contact portion 274 is formed at a predetermined portion (first contact portion 274A) of the side wall 203. Fig.14As shown in B, the contact portion 274 is preferably a portion (second contact portion 274B) formed in the top cover portion 2 corresponding to the specified area on the opposite surface 273 side. When the cover body 201 is fitted with the container 101, the contact portion 274 is formed to suppress the hidden danger of the contents of the container 101 leaking to the outside. The first contact portion 274A is preferably formed roughly within the entire outer periphery of the outer end of the edge 103 of the container, and is also preferably formed in a ring shape. The second contact portion 274B is preferably formed roughly within the entire outer periphery of the upper end of the edge 103 of the container, and is also preferably formed in a ring shape. The first contact portion 274A and the second contact portion 274B can be separated from each other or connected to each other.

[0174] According to the cover 201 of the third example, the top cover 202, the bent portion 204, and the side wall 203 are formed from a blank material, so the cover 201 has elasticity as a whole, and can provide a cover that is easy to fit with and remove from a container. In addition, especially in the case of a cover that is closed by fitting with a container, the cover 201 has elasticity as a whole, thereby greatly improving the airtightness when the cover is closed, and greatly reducing the hidden danger of leakage of the contents outside the container when the cover is closed.

[0175] Furthermore, the modifications 1 to 4 described in the first embodiment can also be applied to the first to third examples of the third embodiment.

[0176] [4 Application examples]

[0177] (Application example 1)

[0178] The cover body 1 described above can be Figure 3 A. Figure 3 The diagram shown in B is used for a container 150 with a cover. Figure 3 A is a perspective view showing an example of attaching the cover 1 of the first embodiment to a container 101 having an opening 102 formed at the upper end, and forming a rim 103 on the outer periphery of the opening 102. In this example, the cover 1 and the rim 103 are joined. Figure 3 B is a schematic representation Figure 3 A cross-sectional view of the CC line longitudinal section state. Figure 3 A. Figure 3 B continues to illustrate the container 150 with a cover.

[0179] (Container with lid)

[0180] The container 150 with a lid has a joint portion 151 for joining the container 101 and the lid 1, and the area of ​​the lid 1 where the joint portion 151 is formed is referred to as a joining area R. The method for joining the lid 1 and the container 101 is not particularly limited, and a joining method such as a crimping method and a heat fusion method (heat sealing) can be used appropriately. Hereinafter, the case where the lid 1 of the first embodiment is used in the container 150 with a lid will be described as an example.

[0181] The container 101 has a container body 110 and an opening 102. The container body 110 has a cylindrical side wall 104 and a bottom 107, and a space 105 is formed inside. The opening 102 opens at the upper end of the container body 110 (the upper end of the side wall 104). Although not shown, the opening 102 of the container 101 is formed in a circular shape. However, the container 101 shown here is only an example and does not limit the structure of the container 101. For example, the container 101 can also form the opening 102 into a rectangular shape. The container 101 can be covered with the opening 102 by the cover body 1. In addition, the items stored in the interior (space 105) of the container 101 are not particularly limited, and for example, liquid items, solid items or a combination thereof can be cited.

[0182] Figure 3 In the container 101 shown in FIG. 1A , the edge 103 of the opening 102 has a flange. The flange may be a rolled portion 108 formed by rolling a member forming the container body 110 outward, or may be formed as a portion (eaves) extending in a plane in the outward direction.

[0183] In addition, the lid body 1 may be provided in combination with the container 101 having the opening 102 .

[0184] (Application Example 2)

[0185] The cover 1 can also be used for Fig.11 A. Fig.11 The container 150 with a cover is shown in B. Fig.11 A is a diagram showing an example of attaching the cover 1 of the first example of the third embodiment to a container 101 having an opening 102 formed at the upper end and forming an edge 103 around the outer periphery of the opening 102. In this example, an example of locking the cover 1 and the edge 103 is shown. Fig.11 B is a schematic representation Fig.11 A is a cross-sectional view of a longitudinal section along line II in FIG.

[0186] Furthermore, the cover body 1 of the third embodiment may be provided in combination with a container 101 having an opening 102 .

[0187] As described so far, the cover body 1 of the present invention can be applied to such various forms of cover bodies 1. In addition, it can also be applied to cover bodies 1 in forms other than those described above. The cover body of the present invention is described in detail above, but the above is only an example of the cover body of the present invention and is not limited to these. Therefore, it can be appropriately changed within the scope of the present invention. In addition, the structure of the cover body mentioned above can use the structure of the cover body of each example independently, or can be applied by appropriately combining the structure of the cover body of each example.

[0188] Based on the above description of this specification, the present invention can adopt the following configurations [E1] to [E14].

[0189] [E1] A cover having a main body formed so as to be contactable with a container, the container having an opening and an edge forming an outer periphery of the opening,

[0190] The main body has an insertion portion configured to form an insertion hole.

[0191] The insertion portion includes a hole cover portion covering the insertion hole, and a fragile portion forming at least a portion of an outer peripheral edge of the hole cover portion.

[0192] The fragile portion includes a plurality of cutout portions that penetrate the main body in the thickness direction of the main body, and a non-penetrating portion that prevents the main body from being penetrated.

[0193] The insertion hole is formed by applying stress from the outside along the thickness direction of the main body relative to the insertion portion,

[0194] When the insertion hole is formed, the non-penetrating portion is broken, and the non-penetrating portion after the break forms a fracture surface on a portion of the outer peripheral edge of the hole cover portion, the hole cover portion is displaced together with the fracture surface, and at least a portion of the fracture surface is located at the top end portion of the hole cover portion.

[0195] [E2] A cover having a main body formed so as to be contactable with a container, the container having an opening and an edge forming an outer periphery of the opening,

[0196] The main body has an insertion portion configured to form an insertion hole.

[0197] The insertion portion includes a hole cover portion covering the insertion hole, and a fragile portion forming at least a portion of an outer peripheral edge of the hole cover portion.

[0198] The hole cover has a corner portion that forms a convex contour portion when the main body is viewed from above.

[0199] The fragile portion includes a plurality of cutout portions that penetrate the main body in the thickness direction of the main body, and a non-penetrating portion that prevents the main body from being penetrated.

[0200] The insertion hole is formed by applying stress from the outside along the thickness direction of the main body relative to the insertion portion,

[0201] When the insertion hole is formed, the non-penetrating portion is broken, and the non-penetrating portion after the break forms a fracture surface on a portion of the outer peripheral edge of the hole cover portion, the hole cover portion is displaced together with the fracture surface, and at least a portion of the fracture surface is located at the corner portion of the hole cover portion.

[0202] [E3] The cover according to [E1] above,

[0203] When the non-penetrating portion is broken, a plurality of the fracture surfaces are formed, and at least a portion of at least one of the fracture surfaces is located at the top end portion of the hole cover portion.

[0204] [E4] The cover according to any one of [E1] to [E3] above,

[0205] The fragile portion has a plurality of non-penetrating portions,

[0206] At least one of the non-penetrating portions is fractured by applying stress from the outside along the thickness direction of the body relative to the insertion portion.

[0207] [E5] The cover according to any one of [E1] to [E4] above,

[0208] The insertion portion has a plurality of hole cover portions,

[0209] When the insertion hole is formed, the fracture surface is formed at a portion of the outer peripheral edge of each of the hole cover parts.

[0210] [E6] The cover according to any one of [E1] to [E5] above,

[0211] The non-penetrating portion has a half-cut structure in which the main body is cut into a predetermined depth in a thickness direction of the main body.

[0212] [E7] The cover according to any one of [E1] to [E6] above,

[0213] The fragile portion has a structure in which at least three cutout portions are formed around the non-penetrating portion.

[0214] [E8] The cover according to any one of [E1] to [E7] above,

[0215] A raised portion is formed.

[0216] The insertion portion is formed in a formation region of the protrusion portion.

[0217] [E9] The cover according to any one of [E1] to [E8] above,

[0218] The main body is formed of a paper material.

[0219] [E10] The cover according to any one of [E1] to [E9] above,

[0220] The cover has: a joint region corresponding portion corresponding to a region joined to the container along the edge of the container; and a cover region corresponding portion consisting of a portion located inside the joint region corresponding portion,

[0221] The insertion portion is formed at the cover region corresponding portion.

[0222] [E11] The cover according to any one of [E1] to [E9] above,

[0223] A side wall is provided around the outer periphery of the main body.

[0224] The side wall is configured to be engageable with the container along the edge of the container.

[0225] [E12] The cover according to any one of [E1] to [E11] above,

[0226] The cutting portion has a peripheral surface portion and an end portion,

[0227] When the two different cutting portions are respectively set as the first cutting portion and the second cutting portion, at least one set of the first cutting portion and the second cutting portion is configured so that the non-penetrating portion is formed between the end portion of the first cutting portion and the peripheral portion of the second cutting portion.

[0228] [E13] A container with a cover, comprising:

[0229] The cover body described in any one of [E1] to [E12] above; and

[0230] The container has the opening and the edge forming the outer periphery of the opening,

[0231] The cover is coupled to the container.

[0232] [E14] A combination of a cover and a container, comprising:

[0233] The cover body described in any one of [E1] to [E12] above; and

[0234] The container includes the opening and the edge forming the outer periphery of the opening.

[0235] Description of Reference Numerals

[0236] 1: Cover

[0237] 2: Main body

[0238] 5A: Corresponding part of the joint area

[0239] 5B: Cover area corresponding part

[0240] 5C: Corresponding part of the outer area

[0241] 6: Insertion

[0242] 7: Hole cover

[0243] 7A: Top

[0244] 8: Vulnerability

[0245] 9: Hinge corresponding part

[0246] 10: Cut-in

[0247] 10A: First cut

[0248] 10B: Second cut

[0249] 11: Non-penetrating part

[0250] 12: Fracture surface

[0251] 13: Corner

[0252] 16: Half cut

[0253] 17: Bump

[0254] 20: Face

[0255] 21: End

[0256] 31: Sidewall

[0257] 32: Top face

[0258] 32A: Outer periphery

[0259] 33: Peripheral part

[0260] 33A: Base end

[0261] 33B: Top

[0262] 34: Rising part

[0263] 35: Outer side

[0264] 36: Inside side

[0265] 37: Upper side wall

[0266] 37A: Top

[0267] 38: Lower side wall

[0268] 38A: Lower end

[0269] 39: Retraction

[0270] 40: Locking structure forming part

[0271] 41: Upper side

[0272] 42: drooping part

[0273] 45: Side wall curling

[0274] 50: Main body

[0275] 70: Outer periphery

[0276] 72: Reveal

[0277] 73: Opposite side

[0278] 101: Containers

[0279] 102: Opening

[0280] 103: Edge

[0281] 104: Sidewall

[0282] 105: Space Department

[0283] 107: Bottom

[0284] 108: Curly part

[0285] 110: Container body

[0286] 150: Container with cover

[0287] 151: Joint

[0288] CT: Center

[0289] HL: Insert hole

[0290] R: junction area.

Claims

1. A cover body, characterized in that: The invention has a main body formed so as to be contactable with a container, the container having an opening and an edge forming an outer periphery of the opening, The main body has an insertion portion configured to form an insertion hole. The insertion portion includes a hole cover portion covering the insertion hole, and a fragile portion forming at least a portion of an outer peripheral edge of the hole cover portion. The fragile portion includes a plurality of cutout portions that penetrate the main body in the thickness direction of the main body, and a non-penetrating portion that prevents the main body from being penetrated. The insertion hole is formed by applying stress from the outside along the thickness direction of the main body relative to the insertion portion, When the insertion hole is formed, the non-penetrating portion is broken, and the non-penetrating portion after the break forms a fracture surface on a portion of the outer peripheral edge of the hole cover portion, the hole cover portion is displaced together with the fracture surface, and at least a portion of the fracture surface is located at the top end portion of the hole cover portion.

2. A cover body, characterized in that: The invention has a main body formed so as to be contactable with a container, the container having an opening and an edge forming an outer periphery of the opening, The main body has an insertion portion configured to form an insertion hole. The insertion portion includes a hole cover portion covering the insertion hole, and a fragile portion forming at least a portion of an outer peripheral edge of the hole cover portion. The hole cover has a corner portion that forms a convex contour portion when the main body is viewed from above. The fragile portion includes a plurality of cutout portions that penetrate the main body in the thickness direction of the main body, and a non-penetrating portion that prevents the main body from being penetrated. The insertion hole is formed by applying stress from the outside along the thickness direction of the main body relative to the insertion portion, When the insertion hole is formed, the non-penetrating portion is broken, and the non-penetrating portion after the break forms a fracture surface on a portion of the outer peripheral edge of the hole cover portion, the hole cover portion is displaced together with the fracture surface, and at least a portion of the fracture surface is located at the corner portion of the hole cover portion.

3. The cover according to claim 1, characterized in that: When the non-penetrating portion is broken, a plurality of the fracture surfaces are formed, and at least a portion of at least one of the fracture surfaces is located at the top end portion of the hole cover portion.

4. The cover according to claim 1 or 2, characterized in that: The fragile portion has a plurality of non-penetrating portions, At least one of the non-penetrating portions is fractured by applying stress from the outside along the thickness direction of the body relative to the insertion portion.

5. The cover according to claim 1 or 2, characterized in that: The insertion portion has a plurality of hole cover portions, When the insertion hole is formed, the fracture surface is formed at a portion of the outer peripheral edge of each of the hole cover parts.

6. The cover according to claim 1 or 2, characterized in that: The non-penetrating portion has a half-cut structure in which the main body is cut into a predetermined depth in a thickness direction of the main body.

7. The cover according to claim 1 or 2, characterized in that: The fragile portion has a structure in which at least three cutout portions are formed around the non-penetrating portion.

8. The cover according to claim 1 or 2, characterized in that: A raised portion is formed. The insertion portion is formed in a formation region of the protrusion portion.

9. The cover according to claim 1 or 2, characterized in that: The main body is formed of a paper material.

10. The cover according to claim 1 or 2, characterized in that: have: a joining region corresponding to a region along the edge of the container where the container joins with the container; and a cover region corresponding portion constituted by a portion located inside the bonding region corresponding portion, The insertion portion is formed at the cover region corresponding portion.

11. The cover according to claim 1 or 2, characterized in that: A side wall is provided around the outer periphery of the main body. The side wall is configured to be engageable with the container along the edge of the container.

12. The cover according to claim 1 or 2, characterized in that: The cutting portion has a peripheral surface portion and an end portion, When the two different cutting portions are respectively set as the first cutting portion and the second cutting portion, at least one set of the first cutting portion and the second cutting portion is configured so that the non-penetrating portion is formed between the end portion of the first cutting portion and the peripheral portion of the second cutting portion.

13. A container with a cover, characterized in that: have: The cover body according to claim 1 or 2; and The container has the opening and the edge forming the outer periphery of the opening, The cover is coupled to the container.

14. A combination of a cover and a container, characterized in that: have: The cover body according to claim 1 or 2; and The container includes the opening and the edge forming the outer periphery of the opening.

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