TW202408886A - Lid, container with lid, combination of lid and container - Google Patents

Abstract

Provided are a lid that can suppress ejection of contents from the lid in the state of the container with the lid, a container with the lid, and a combination of the lid and the container. The cover has a main body formed so as to be in contact with a container, the container having an opening and a rim forming an outer periphery of the opening, the main body having an insertion portion configured to form an insertion hole, and the insertion portion having a hole cover covering the insertion hole. and a weakened portion forming at least part of the outer peripheral edge of the hole cover portion. The weakened portion has a plurality of cut-out 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 It 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 broken non-penetrating portion is formed on a part of the outer peripheral edge of the hole cover portion. The fracture surface, the hole cover part and the fracture surface are displaced together, and at least a part of the fracture surface is located at the top end of the hole cover part.

Description

Lid, container with lid, combination of lid and container

The present invention relates to a cover, a container with the cover, and a combination of the cover and the container.

The method of providing in the state of a container with a lid body is widely performed, in which drinks and food (hereinafter also referred to as "contents") are accommodated in a container having an opening and a lid body is attached.

From the perspective of reducing environmental burden, a lid made of paper material is required as a lid mounted on a container. As a method of mounting a lid on a container, a method (sealing method) of joining the lid to an edge formed on the periphery of an opening at the upper end of the container using a method such as heat pressing is known. When the contents contained in the lid are liquids such as cold drinks and carbonated beverages, as a method of taking the contents, Patent Document 1 discloses a method in which an insertion portion for forming an insertion hole is formed on the lid, and a straw or the like is inserted into the insertion portion to suck the contents. Prior Art Documents Patent Documents

Patent document 1: Japanese Patent Application Publication No. 2012-153382

In the technology described in Patent Document 1, the contents may leak from the insertion portion due to the vibration of the container with a lid when the user moves the container with the lid. This is especially true when the contents are such as carbonated drinks. In the case of gaseous drinks, there is a concern that the contents may eject from the insertion part. In addition, when the cover is made of a material that may be hygroscopic or water-absorbent, such as paper, a gap is easily formed in the insertion part, and there is a high risk that the contents will be ejected from the insertion part. Therefore, there is room for improvement in suppressing the contents from being ejected from the cover.

The present invention has been made in view of such problems, and it is an object of the present invention to provide a lid that can suppress the contents from being ejected from the lid in a container with a lid, a container with a lid, and a combination of the lid and the container. .

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

(1) A lid having a main body formed to be in contact with a container, the container having an opening and an edge forming an outer circumference of the opening, the main body having an insertion portion configured to form an insertion hole, the above-mentioned The insertion part has a hole cover part covering the insertion hole, and a weakened part forming at least a part of the outer peripheral edge of the hole cover part, and the weakened part has a plurality of cut-out parts penetrating 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 along the thickness direction of the main body with respect to the insertion portion. When the insertion hole is formed, the non-penetrating portion is The fractured non-penetrating portion forms a fracture surface on a part of the outer peripheral edge of the hole cover part, the hole cover part and the fracture surface are displaced together, and at least part of the fracture surface is located on the hole cover part Top part. (2) A lid having a main body formed to be in contact with a container, the container having an opening and an edge forming an outer circumference of the opening, the main body having an insertion portion configured to form an insertion hole, the aforementioned The insertion portion has a hole cover portion that covers the insertion hole, and a weakened portion that forms at least a part of the outer peripheral edge of the hole cover portion. The hole cover portion has a corner portion that forms a convex outline portion when the main body is viewed from above. The weakened portion has a plurality of cut-out portions for penetrating the main body in the thickness direction of the main body and non-penetrating portions for preventing the main body from penetrating, and the insertion hole is formed by opening from the insertion portion along the thickness direction of the main body. When the insertion hole is formed, the non-penetrating portion is formed by applying external stress, and the broken non-penetrating portion forms a fracture surface on a part of the outer peripheral edge of the hole cover portion, and the hole cover portion and The fracture surfaces are displaced together, and at least a part of the fracture surfaces is located at the corner of the hole cover. (3) In the cover body according to the above (1), when the non-penetrating portion is broken, a plurality of the fracture surfaces are formed, and at least a part of the at least one fracture surface is located at the top end portion of the hole cover portion. (4) According to the cover according to the above (1) or (2), the weakened portion has a plurality of the non-penetrating portions, and stress is applied from the outside along the thickness direction of the main body with respect to the insertion portion to cause at least One of the aforementioned non-penetrating parts is broken. (5) According to the cover body according to the above (1) or (2), the insertion part has a plurality of the hole cover parts, and when the insertion hole is formed, a part of the outer peripheral edge of each of the hole cover parts is formed. The aforementioned fracture surface. (6) In the cover according to the above (1) or (2), 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. (7) In the cover according to the above (1) or (2), the weakened portion has a structure in which at least three of the cut portions are formed around the non-penetrating portion. (8) In the cover body according to the above (1) or (2), a raised portion is formed, and the insertion portion is formed in a region where the raised portion is formed. (9) The cover according to the above (1) or (2), wherein the main body is formed of paper material. (10) The lid according to the above (1) or (2), having: a joint area corresponding portion corresponding to a joint area with the container along the edge portion of the container; and a joint area corresponding portion located from the joint area corresponding portion. The inner part constitutes a cover area corresponding portion, and the insertion portion is formed in the cover area corresponding portion. (11) The lid according to the above (1) or (2), wherein a side wall is provided on the outer periphery of the main body, and the side wall is configured to be capable of being locked to the container along the edge of the container. (12) In the cover body according to the above (1) or (2), the cut-out portion has a peripheral surface portion and an end portion, and the two different cut-out portions are respectively used as the first cut-out portion and the second cut-out portion. Next, at least one set of the first incision portion and the second incision portion are arranged such that the non-penetrating portion is formed between the end portion of the first incision portion and the peripheral surface portion of the second incision portion. . (13) A container with a lid, comprising: the lid according to (1) or (2); and the container having the opening and the rim forming the outer periphery of the opening, and the lid Joined to the aforementioned container. (14) A combination of a lid and a container, comprising: the lid according to (1) or (2); and the container having the opening and the rim forming the outer periphery of the opening. Invention effect

According to the present invention, it is possible to provide a cover body capable of suppressing the contents from spraying out of the cover body in the state of a container with a cover body, a container with a cover body, and a combination of the cover body and the container.

The lid of the present invention is described in detail below based on the drawings. In addition, the lid of the present invention is described as a lid used for a container (cup) containing various beverages such as a coffee cup, but it is not limited to the lid of a container containing beverages, and can also be applied to a lid of a container that contains food other than beverages. In addition, the lid of the present invention can also be applied to a container that can contain various items other than beverages and food, such as parts such as bolts and nuts, or items other than the above. Moreover, the cover of the present invention uses a cover whose shape is circular when viewed from above as an example in the following description, but the shape of the cover is not limited to a circular shape when viewed from above, and can also be applied to various shapes other than circles, such as ellipses, rectangles, triangles, etc., and chamfered rectangles and chamfered polygons.

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 drawing symbols, and repeated descriptions will be omitted.

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 directions such as front and back, left and right, up and down, and the direction of the horizontal plane are indicated for the convenience of explanation, but the content of the present invention is not limited to these directions. In the examples of Figures 1 to 15, the Z-axis direction is used as the up and 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 and back direction (the rear side is the +X direction, and the front side is the -X direction), and the directions along the X-axis and the Y-axis that are orthogonal to each other 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 the horizontal plane, and the description is based on these. Relative size ratios such as dimensions shown in each of FIGS. 1 to 15 are described for convenience, and the actual size ratios are not limited unless otherwise specified.

[1 First embodiment] [1-1 Configuration] The cover 1 of the first embodiment has a main body 2.

(Main body) As will be described later using FIG. 3A, FIG. 3B, etc., the main body 2 is formed in a manner capable of contacting a container 101 having an opening 102 and an edge 103, the edge 103 being an upper edge forming the outer periphery of the opening 102. FIG. 3A and FIG. 3B are a perspective view and a cross-sectional view showing an example of a container 150 with a cover body, in which the cover body 1 shown in FIG. 1A and FIG. 1B is mounted on the container 101. In the example of FIG. 3A, the opening 102 is provided on the upper end side in the vertical direction of the container 101. The cover body 1 in the first embodiment can be used for the container 150 with a cover body by being in a state where the main body 2 is joined along the edge 103. FIG. 3B is a cross-sectional view schematically showing a longitudinal section along the C-C line of FIG. 3A. 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 a container that is considered to have almost no flexibility, such as a metal container.

The cover body 1 of the first embodiment has a bonding area R in the main body 2. In the cover body 1, the area that is bonded to the edge 103 when the cover body 1 is viewed from above is called the bonding area R. In FIG1A , the area in the main body 2 corresponding to the bonding area R is the area on the opposite surface 73 side of the portion represented by the shaded area. FIG1A is a top view schematically showing an example of an embodiment of the cover body 1 of the first embodiment.

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

As shown in FIGS. 1A and 1B , the main body 2 of the cover 1 according to the first embodiment has a joint area corresponding part 5A and a cover area corresponding part 5B. FIG. 1B is a cross-sectional view schematically showing a longitudinal cross-section along line A-A in FIG. 1A .

(Jointing area corresponding portion) The joining area corresponding portion 5A is a portion of the lid 1 corresponding to the area joined to the container 101 along the edge 103 of the container 101. That is, the joining area corresponding portion 5A is a portion of the lid 1 corresponding to the joining area R (the area facing the edge 103 of the container 101 and joined to the container 101). In the container 150 with a lid, the joining area corresponding portion 5A is a portion of the lid 1 that forms the joining portion 151 between the lid 1 and the container 101. Specifically, when the lid 1 is viewed from above (in the example of FIG. 1A , the Z-axis direction (up and down direction) is the viewing direction), the portion forming the joining area R is defined as the joining area corresponding portion 5A. The joining area corresponding portion 5A is usually formed in a ring shape as shown in FIG. 1A . In particular, as shown in FIG1A, when the edge 103 of the container 101 is formed into a roughly annular shape, the joining area R is annular, and the joining area corresponding part 5A is also roughly annular when the lid 1 is viewed from above. The outer edge of the joining area corresponding part 5A is determined according to the position of the outer edge of the joining area R. The outer edge of the joining area corresponding part 5A can be located at the outer periphery of the lid 1, or it can be located inside compared to the outer periphery of the lid 1 as shown in the example of FIG1A. In the case where the joining area R of the lid 1 and the container 101 is not formed continuously, the part sandwiched by the adjacent joining areas R and facing the edge 103 is also included in the joining area corresponding part 5A described later.

(Lid area corresponding part) The lid area corresponding part 5B is a part of the lid body 1 located on the inner side from the joint area corresponding part 5A. That is, the lid area corresponding part 5B is a part located on the inner side from the inner edge end of the joint area corresponding part 5A, and the outer peripheral end of the lid area corresponding part 5B is common to the inner edge end of the joint area corresponding part 5A. The lid area corresponding part 5B becomes a part that covers the opening part 102 in the container 150 with a lid body. In addition, as shown in the example of FIG. 1A, the part of the lid body 1 located on the outer side from the outer peripheral end of the lid area corresponding part 5B is called the outer side area corresponding part 5C.

(Insertion part) The main body 2 has an insertion portion 6 configured to form an insertion hole. The insertion hole HL is a hole into which a component can be inserted from the outside. Specific examples of the component that can be inserted from the outside include a straw. As shown in FIGS. 2A and 2B , the insertion hole HL is formed by externally applying stress to the insertion portion 6 along the thickness direction of the main body 2 . In this case, the hole cover 7 is in a pushed-open state, and the hole-shaped opening portion formed by being pushed becomes the insertion hole HL. FIG. 2A is a diagram showing a state in which the insertion hole HL is formed in the cover 1 of the first embodiment by applying stress in the downward direction (-Z direction) from the outside with respect to the insertion portion 6 . FIG. 2B is a cross-sectional view schematically showing a longitudinal cross-section along line B-B in FIG. 2A .

The position of the insertion portion 6 is not particularly limited, but in the example of FIG. 1A , it is formed in the cover area corresponding portion 5B. In addition, in this example, it is formed near the center CT of the cover area corresponding part 5B. In addition, the arrangement of the cut-out portion 10 to be described later forming the insertion portion 6 is not limited to the example in FIG. 1A . The position of the cutting part 10 may be determined so that the insertion part 6 shown in FIG. 1A can be appropriately rotated.

The insertion part 6 has a hole cover part 7 and a weakened part 8.

(hole cover part) The hole cover 7 is composed of a portion covering the insertion hole HL. The hole cover portion 7 is a portion surrounded by a portion that becomes a pivot portion when the insertion hole HL is formed (when pushed open) (the pivot corresponding portion 9 ) and a weakened portion 8 described later. In the example of FIG. 1A , Four non-penetrating portions 11 are formed around the weakened portion 8 . In this example, the two hole cover parts 7 are divided by the cut-out part 10 as a boundary. In addition, when the insertion hole HL is formed, it includes not only the case where the hole cover 7 is rotated at a fixed angle with a specific position as the axis, but also the case where the pivot corresponding part 9 is the base end (the base end of the hole cover 7 ) is a case where the hole cover portion 7 is recessed toward the front end portion 7A side and the hole cover portion 7 is gradually bent while being displaced.

(Ministry of Vulnerability) The weakened portion 8 is a portion that forms at least a part of the outer peripheral edge 70 of the hole cover portion 7 , and forms the outline of the hole cover portion 7 together with the pivot corresponding portion 9 . The weakened portion 8 has a cut-in portion 10 and a non-penetrating portion 11 . The weakened portion 8 guides the position where the split occurs (split position) when a pushing or pressing force is applied to the weakened portion 8 to form a split portion on the main body 2 . For example, in the example of FIG. 1A , if a force is applied to push down the portion corresponding to the insertion portion 6 from the exposed surface 72 side to the opposite surface 73 side, the non-penetrating portion 11 will be destroyed as shown in FIGS. 2A and 2B . The fracture surface 12 is generated and splits along the fracture surface 12 and the cross section forming the cut-out portion 10 , and the hole cover 7 is pressed down to form the insertion hole HL (the insertion hole HL is opened).

(Incision) The incision 10 penetrates the main body 2 along the thickness direction (Z-axis direction) of the main body 2. A plurality of incisions 10 are formed on the main body 2. In the example of FIG. 1A, each incision 10 is formed in a straight-line incision line, but this is only an example. In addition, in FIG. 1A, for the sake of convenience, the incision 10 is illustrated in a state where the incision 10 has a certain degree of width. This illustration is the same in FIGS. 2 to 15.

In the cover body 1 of the first embodiment, for example, as shown in FIG. 4C , FIG. 4D , etc., the cut-in portion 10 may also be formed into a curved shape. In addition, the cut-in portion 10 is arranged in a radial shape around the non-penetrating portion 11 described later, but this is only an example and is not limited to this arrangement. However, from the viewpoint of easily forming a structure in which at least a portion 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 arranged in a radial shape around the non-penetrating portion 11. The cut-in portion 10 has a structure (penetrating structure) that cuts from one surface (exposed surface 72) of the main body 2 to another surface (opposite surface 73) along the up-down direction (thickness direction, Z-axis direction). The cut-in portion 10 has a peripheral portion 20 and an end 21. The peripheral surface 20 extends along the longitudinal direction of the cutout portion 10, and the end portion 21 is formed at the cutout end (the end of the peripheral surface 20). In addition, the cutout portion 10 can function as an exhaust portion. Here, the exhaust portion refers to a portion that allows gas to pass from one surface side of the main body 2 to the other surface side (from the opposite surface 73 side to the exposed surface 72 side).

In addition, the weakened portion 8 has a structure in which at least two cut portions 10 are formed around the non-penetrating portion 11. As shown in FIG. 4A, it is preferably formed in a structure in which three or more cut portions 10 are formed. If at least three cut-out portions 10 are formed around the non-penetrating portion 11 , a state can be formed in which 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 The hole cover 7 is formed so as to surround the position corresponding to the non-penetrating portion 11 , so that when the straw or the like is inserted into the insertion hole HL, the hole cover 7 can easily support the straw or the like uniformly. In addition, from this viewpoint, as shown in FIG. 1A , four incisions 10 may be formed around the non-penetration part 11 , or as shown in FIG. 4B , five or more incisions may be formed around the non-penetration part 11 10 (six incisions 10 are formed in the example of FIG. 4B ).

(Non-penetrating part) The non-penetrating portion 11 is a portion of the weakened portion 8 that prevents the main body 2 from being penetrated. The non-penetrating portion 11 can be defined as a portion of the outer peripheral edge 70 of the hole cover portion 7 that is intended to form a portion (fracture surface) other than the pivot corresponding portion 9 and the peripheral surface portion 20 . In the example of FIG. 1A , the arrangement of the non-penetrating portion 11 is defined so that the incision portions 10 are arranged in a radial pattern around the non-penetrating portion 11 . In addition, the non-penetrating portion 11 is formed on the main body 2 as a portion (continuous portion) to avoid forming an incision in the example of FIG. 1A . However, the non-penetrating portion 11 is not prohibited from being a portion cut halfway into the main body 2 (a portion forming a half-cut structure that is cut to a predetermined depth without penetrating the main body 2 ). For example, as shown in FIG. 1C , the non-penetrating portion 11 It may be a portion having a half-cut structure (half-cut portion 16). FIG. 1C is a cross-sectional view showing an example in which the non-penetrating portion 11 has a half-cut structure. In addition, the half-cut portion 16 is not limited to a portion cut 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 of the thickness of the main body 2 while avoiding penetrating the main body 2 , and a structure that cuts into less than half the thickness of the main body 2 in the thickness direction of the main body 2 .

The number of non-penetrating portions 11 formed is one in the example of FIG. 1A , but the number of formed non-penetrating portions 11 may be plural. For example, in the example of FIG. 4D , the incision 10 is formed in a curved linear shape, and three non-penetrating portions 11 are provided between the end portions 21 of two different incisions 10 .

(Fracture surface) When the insertion hole HL is formed by the stress applied to the insertion part 6, the non-penetration part 11 is broken, and the hole cover part 7 is pushed open, and the non-penetration part 11 after the break forms a fracture surface 12 on a part of the outer periphery 70 of the hole cover part 7. The fracture surface 12 in this specification is a surface formed by breaking the part of the main body 2 formed by the stress applied to the insertion part 6.

(Relationship between hole cover, non-penetrating portion, cut-in portion and fracture surface) When the insertion hole HL is formed in the cover body 1, the hole cover 7 is pushed by the external force applied to the insertion portion 6 (the top end portion 7A side of the hole cover 7 is pushed out in the direction of the external force), and when the top end portion 7A side of the hole cover 7 is pushed out, the hole cover 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 7. The fracture surface 12 is formed into a shape corresponding to the fracture state of the non-penetrating portion 11. In the example of FIG. 1A , a state is formed in which a 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 to form a fracture surface 12, the following state 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 periphery 70 of the hole cover portion 7 is formed by the fracture surface 12.

In the cover body 1 of the first embodiment, when a plurality of fracture surfaces 12 are formed after the non-penetrating portion 11 is broken, 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 two fracture surfaces 12 are formed after the non-penetrating portion 11 is broken, at least one fracture surface 12 is formed in such a manner that a portion of it is located at the top end portion 7A of the hole cover portion 7.

As shown in FIG. 1A , when the insertion portion 6 has a plurality of hole cover portions 7 and the insertion hole HL is formed, the fracture surface 12 only needs to be formed on the tip portion 7A of at least one hole cover portion 7 . However, regarding each hole cover part 7 , the fracture surface 12 is formed in a part of the outer peripheral edge 70 of the hole cover part 7 .

(Material of the body) From the viewpoint of reducing environmental burden, the material of the main body 2 is preferably made of paper material. Examples of paper materials include: so-called paper obtained by taking the slurry of fiber raw materials into a mesh shape and drying or press-drying it into a sheet; and knitting hollow fiber raw materials by air flow and knitting them. So-called air-laid sheets, etc., in which the fibers of the body are fixed to each other by a bonding material, wherein the hollow fiber raw material is pulverized pulp, etc. obtained by pulverizing a raw material sheet composed of pulp fibers, etc. by a pulverizer; and The following raw materials and materials made by laminating multiple sheets of these raw materials, etc. In addition to so-called paper materials made by bonding plant fibers and other fibers, these raw materials include chemical fiber paper, synthetic paper, water-resistant paper, coated paper, Replace paper, parchment paper, wool paper, fiberglass paper, stone paper, ceramic paper, etc. In addition, as the paper material, in addition to a material composed only of pulp, it may also be a material including non-pulp natural fibers, synthetic fibers, regenerated fibers and other fibers. However, it is preferable that the pulp contains 50% by mass or more. It is more preferable that it contains 70 mass % or more, it is still more preferable that it contains 80 mass % or more, and it is especially preferable that it consists of 100 mass % of pulp. Paper materials can use synthetic resin and natural resin films, non-woven fabrics, wood foil and other wood-based materials, and composite materials with aluminum foil and other materials can also be used. However, when using composite materials, the composite material as a whole is preferred. The pulp content is 50% by mass or more, and particularly preferably the pulp content is 80% by mass or more. The higher the pulp content ratio, the easier it is for the paper material to biodegrade, so it is preferable.

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 may be formed of a laminate of a paper material and a resin film material.

[1-2 Function and Effect] In the conventional container with a cover body in which a cover body is attached to a container, there is a problem that when a user moves the container with a cover body, the contents may leak out from the insertion part due to the vibration of the container with a cover body during movement. In particular, when the contents are drinks that generate gas, such as carbonated drinks, there is a concern that when the gas is released from the insertion part, the contents may be ejected from the insertion part to the outside together with the gas. Therefore, in terms of suppressing the ejection of the contents from the cover body, the container with a cover body still has room for improvement.

According to the cover 1 of the first embodiment, the insertion portion 6 has the hole cover portion 7 and the weakened portion 8 having the cut-out portion 10 and the non-penetrating portion 11 . Furthermore, the non-penetrating portion 11 is formed so that the fracture surface 12 caused by the destruction of the non-penetrating portion 11 when the insertion hole HL is formed is located at the tip end portion 7A of the hole cover portion 7 .

However, when the insertion part has a hole cover part and a cut-out part, when the content is ejected from the cover, there is a high risk that the content may also leak out from the part in the cut-out part where gas easily leaks. The portion of the cut-out portion on the front end side of the hole cover is easily displaced due to the influence of stress from the outside. Therefore, the gap in the cut-out portion is likely to expand, and there is a high possibility that the gas may easily leak.

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, such as a portion on the side of the top end portion 7A of the hole cover portion 7, thereby being able to suppress the contents from spraying out of the cover body 1 in the state of the container 150 with the cover body attached.

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 portion, so there is a concern that moisture penetrates from the end surface into the fibers constituting the paper material, causing damage to the cover. The toughness is greatly compromised and the strength of the insertion portion is reduced. In particular, if moisture invades near the top end of the hole cover forming the insertion portion, collapse will 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 The gap in the vicinity of the tip end of the hole cover is enlarged, which may further worsen the ejection of the contents from the cover.

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 periphery 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 portion 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 near the top end portion 7A in the stage before the insertion hole HL is opened. Therefore, according to the cover body 1 of the first embodiment, even when 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 spraying out of the cover body 1 near the top end 7A of the hole cover portion 7 can be suppressed.

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

[1-3 Variations] (Variation 1) In the cover 1 of the first embodiment, when the main body 2 is formed with an insertion portion 6, the layout of the fragile portion 8 forming the insertion portion 6 is not limited to the example of FIG. 1A, and may be the layout shown in FIGS. 4A to G (Variation 1). FIGS. 4A to G are diagrams for explaining an embodiment of the cover 1 of Variation 1 of the first embodiment.

(Layout of the Vulnerability Department) The layout of the weakened portion 8 can be determined based on various conditions such as functions and appearance of the weakened portion 8 . In the example of the weakened portion 8 shown in the examples of FIGS. 4A and 4B , the non-penetrating portion 11 is formed at one place, and a total of three incision portions 10 are formed in FIG. 4A and a total of six are formed in FIG. 4B . In the example of FIG. 4A and FIG. 4B , the cut-out portion 10 is formed to extend radially in different directions from the non-penetrating portion 11 .

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

In the examples shown in FIG. 4E and FIG. 4F, the fragile portion 8 is formed into an N-shape (similar to the shape of the letter N) and a W-shape (similar to the shape of 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 having different long side directions extend intersect. In addition, in any of the examples of FIG. 4E and FIG. 4F, the non-penetrating portion 11 is also formed at a plurality of locations.

In the example shown in G in FIG. 4 , the weakened portion 8 is formed by a plurality of incision 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 the transverse direction. (a shape similar to the letter U turned sideways). In the example of G in FIG. 4 , the portion corresponding to the tip portion 7A is formed as a whole by the non-penetrating portion 11 , and the non-penetrating portion 11 becomes the half-cut portion 16 .

(Modification 2) In the cover 1 of the first embodiment, when the weakened portion 8 has a plurality of non-penetrating portions 11, when the insertion hole HL is formed, the insertion hole HL can also be formed by inserting the insertion hole HL from the insertion portion 6 along the thickness direction of the main body 2. External stress is applied to cause all of the non-penetrating portions 11 to break. However, at least one of the non-penetrating portions 11 may be broken. For example, in the weakened portion 8 shown in FIG. 4D , three non-penetrating portions 11 are provided. However, if the non-penetrating portion 11 located on the front end portion 7A side of the hole cover portion 7 is destroyed when the insertion hole HL is formed, then Either or both of the two non-penetrating portions 11 located closer to the pivot corresponding portion 9 of the hole cover portion 7 than the non-penetrating portion 11 do not need to be broken. In this case, a part of the hole cover portion 7 (the portion on the front end portion 7A side of the hole cover portion 7 ) is also pushed in, and an insertion hole HL of a certain size can be opened.

(Variant 3) In the cover 1 of the first embodiment, as shown in H of FIG. 4, when two different cutouts 10 are respectively set as the first cutout 10A and the second cutout 10B, the configuration of at least one set of the first cutout 10A and the second cutout 10B may be such that a 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 (Variant 3). H of FIG. 4 is a diagram for explaining an embodiment of the cover 1 of Variant 3 of the first embodiment.

(Function and effect of Modification 3) When the insertion hole HL is formed in the cover 1 , the non-penetrating portion 11 is split in a direction away from the end 21 of the cut-out portion 10 by the stress applied to the insertion portion 6 , and Fracture surface 12 is formed. At this time, in the cover 1 , the fracture surface 12 is often formed along the longitudinal direction of the cut-out portion 10 . However, when the main body 2 is made of paper material, depending on the content of the paper material forming the main body 2 Depending on the orientation of the fibers, there is a possibility that the breaking direction of the non-penetrating portion 11 will become an undesired direction, and the shape of the hole cover portion 7 may become an undesired shape. In this regard, according to Modification 3 of the first embodiment, the non-penetrating portion 11 is formed between the end portion 21 of the first incised portion 10A and the peripheral surface portion 20 of the second incised portion 10B. Therefore, when the non-penetrating portion 11 When the first incision portion 10A is torn in a direction away from the end portion 21 starting from the end portion 21 , even if the breaking direction of the non-penetrating portion 11 is slightly biased in an unintended direction, the breakage of the non-penetrating portion 11 will The formed fracture surface 12 also merges with the peripheral surface portion 20 of the second incision portion 10B, thereby suppressing the possibility that the shape of the hole cover portion 7 becomes an undesired shape.

(Variant 4) In the cover 1 of the first embodiment, as shown in FIG. 5A and FIG. 5B, a raised portion 17 may also be formed on the main body 2 (Variant 4). FIG. 5A and FIG. 5B are respectively a top view and a cross-sectional view of an embodiment of the cover 1 of Variant 4 of the first embodiment. The raised portion 17 is a portion raised toward the exposed surface 72. In addition, the portion corresponding to the raised portion 17 in the opposite surface 73 in FIG. 5A and FIG. 5B is a recessed portion. In this case, it is preferable that an 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 line of sight).

(Modification 5) In the cover 1 of the first embodiment, as shown in FIGS. 12A, 12B, 13A, and 13B, the window portion 51 may be formed in the main body 2 (Modification 5). 12A and 13A are plan views for explaining an example of the cover body according to Modification 5 of the first embodiment. 12B and 13B are respectively cross-sectional views for explaining an example of the cover 1 according to Modification 5 of the first embodiment. FIG. 12B is a cross-sectional view schematically showing the state of the J-J line longitudinal section in FIG. 12A. FIG. 13B is a cross-sectional view schematically showing the state of the K-K line longitudinal cross-section in FIG. 13A. The window portion 51 has an opening hole 52 formed in a part of the main body 2 and a window that 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 ) and allows light to pass therethrough. cover material. Window covering materials can include transparent and translucent materials. Examples of such materials include colored or non-colored transparent or translucent resin films, cellophane paper (Cellophane), cellophane (Glassine), etc., and cellulose nanofibers (fibers) made of transparent paper-like materials. Transparent paper formed from Cellulose microfibril, etc. The arrangement of the window cover material is achieved, for example, by sticking the window cover material around the opening 52 in a state of being arranged so as to cover the opening 52 . By providing the window portion 51 to which a window member made of a transparent or translucent material is adhered, the contents of the container 101 can be confirmed in a state where the lid 1 is joined to the container 101 (a state in which the lid is closed).

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

[2 Second embodiment] [2-1 Structure] As shown in Fig. 6A and Fig. 6B, the cover 1 of the second embodiment has a main body 2, and an insertion portion 6 is formed in the main body 2. Fig. 6A is a top view schematically showing an embodiment of the cover 1 of the second embodiment. Fig. 6B is a cross-sectional view schematically showing the state of the longitudinal section along the E-E line in Fig. 6A. In the cover 1 of the second embodiment, the definition and structure of the joint area corresponding portion 5A, the cover area corresponding portion 5B, and the outer area corresponding portion 5C of the main body 2, as well as the material of the main body 2, are the same as those of the first embodiment, and therefore the description thereof is omitted. In addition, the insertion portion 6 has a hole cover portion 7 and a fragile portion 8. The insertion portion 6 is formed in the same manner as the first embodiment, except that the hole cover portion 7 has a corner portion 13 and at least a portion of the fracture surface 12 has a position corresponding to the corner portion 13. In the second embodiment, the description of the same structure as the first embodiment is omitted.

(hole cover part) 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 part 6 has a plurality of hole cover parts 7, the corner part 13 may be formed in all the hole cover parts 7, or the corner part 13 may be formed in some of the hole cover parts 7. In the example of FIG. 6A , two hole cover portions 7 are formed, but this is only an example.

(Corner) The corner 13 is an angular portion formed on the hole cover 7 and corresponding to the convex contour portion of the hole cover 7. In the example of FIG. 6A, the hole cover 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 13. In addition, the corner 13 may be formed in a substantially angular shape. Therefore, within the range of the corner 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 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, it is also included in the corner 13.

(Weakened portion) The weakened portion 8 has a cut-out portion 10 and a non-penetrating portion 11 in the same manner as the configuration shown in the first embodiment. The layout of the weakened portion 8 shown in the example of FIG. 6A is different from the layout shown in FIG. 1A as the example of the first embodiment, and is formed in an H shape, and is composed of a combination of three cut-out portions 10 and two non-penetrating portions 11. However, the layout of the weakened portion 8 in the cover 1 of the second embodiment is not limited to the example of FIG. 6A.

(Fracture surface) As shown in Fig. 7A and Fig. 7B, 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. Furthermore, when 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 portion of the outer periphery 70 of the hole cover portion 7. Moreover, in the cover body 1 of the second embodiment, at least a portion of the fracture surface 12 is located at a corner portion 13 of the hole cover portion 7. In addition, in the example of FIG. 7A , as 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 example of the cover 1 of the second embodiment, two parallel cut-out portions 10 are formed, and a shape orthogonal to the longitudinal direction of the two cut-out portions 10 is formed at a position between the two cut-out portions 10 . The cut-out portion 10 is oriented in the longitudinal direction. Furthermore, when the incision formed at a position between the two parallel incisions 10 is regarded as the first incision and the two incisions 10 are regarded as the second incision, between the end of the first incision and A non-penetrating portion 11 is formed between the peripheral surfaces of the second incision portion. However, this is only an example, and it is not prohibited to avoid forming the non-penetrating portion 11 between the end portion of one cut portion and the peripheral surface of the other cut portion. However, as will be described later, when the main body 2 of the cover 1 is made of a paper material, it is preferable that there is a gap between the end of one cutout and the peripheral surface of the other cutout (the end of the first cutout and the second cutout). 2, a non-penetrating portion 11 is formed between the peripheral surfaces of the cut portions). In addition, the above-described modifications 1 to 4 of the first embodiment can also be applied to the second embodiment.

[2-2 Functions and effects] In a lid that can be used for a container with a lid, when the insertion portion has a hole lid portion and a cutout portion as described in the first embodiment, when the gas in the container is ejected from the lid, There is also a high risk that the contents will leak from the portion in the cut-out portion where gas can easily leak. When a corner portion is formed in the hole cover portion of the cut-out portion, the corner portion of the hole cover portion is a portion that is easily displaced due to the influence of stress from the outside. Therefore, the gap in the cut-out portion is likely to expand near the corner portion. , the possibility of becoming a part where gas can easily leak out is high. According to the cover 1 of the second embodiment, the non-penetrating portion is formed in a portion where gas is likely to leak, such as the corner portion of the hole cover portion. Therefore, it is possible to suppress the content from leaking out of the cover in the state of the container with the cover. squirt.

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, thereby 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 being able to prevent the contents from spraying out of the cover body 1 near the corner portion 13 of the hole cover portion 7.

[2-3 Modifications] (Modification 1) In the cover 1 of the second embodiment, when the main body 2 is formed with the insertion portion 6, the layout of the weakened portion 8 forming the insertion portion 6 is not limited to the example in Fig. 6A, and may also be as shown in Figs. 8A to E. Layout (Variation 1). 8A to 8E are diagrams for explaining an example of the cover 1 according to Modification 1 of the second embodiment.

(Layout of the fragile portion) 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. In the example of the fragile portion 8 shown in the examples of Figures 8A to E, the non-penetrating portion 11 is formed at two locations, and the cut-in portions 10 are formed in a total of three. In the example shown in Figures 8A 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 end portion 7A is formed into a straight U-shaped shape facing the horizontal direction (a shape similar to the letter U laid down horizontally). However, in Figure 8D, it presents a shape closer to a horseshoe shape.

In the cover 1 of Modification 1 of the first embodiment shown in FIGS. 8A to 8D , when two different cut-out portions 10 are respectively used as the first cut-out portion 10A and the second cut-out portion 10B, at least one The first and second cut portions 10A and 10B of the set are arranged such that the non-penetrating portion 11 is formed between the end portion 21 of the first cut portion 10A and the peripheral surface portion 20 of the second cut portion 10B. In this case, the same operations and effects as those shown in the modification 3 of the first embodiment can be obtained.

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

[3 Third embodiment] [3-1 First example] As shown in Fig. 9A and Fig. 9B, the cover 1 of the third embodiment has a main body 50 and a side wall 31. This example is referred to as the first example of the third embodiment. Fig. 9A and Fig. 9B are diagrams showing an embodiment of the first example of the cover 1 of the third embodiment.

(Main body) The main body 50 has a top portion 32, and in the example of FIG. 9A and FIG. 9B, has a top portion 32 and a peripheral portion 33. In the example of FIG. 9A and FIG. 9B, 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 is omitted.

(top face) The top surface portion 32 corresponds to the portion that covers the opening 102 when the lid 1 is attached to the container 101, and has an insert similar to the lid area corresponding portion 5B of the main body 2 in the first and second embodiments. The structure of the portion 6 can be configured similarly to the cover area corresponding portion 5B of the main body 2 in the first embodiment and the second embodiment. Therefore, in the description of the third embodiment, the description of the insertion portion 6 is omitted. In addition, in the example of FIG. 9A and FIG. 9B, the example in which the insertion part 6 is comprised similarly to the insertion part 6 shown in FIG. 1A is described as an example. This situation is the same in FIGS. 10A, 10B, 11A, and 11B.

(Peripheral part) 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 serving as the base end 33A. In the example of FIG. 9B , the outer peripheral portion 33 is a portion that rises from the outer peripheral edge 32A of the top surface portion 32 in the direction (upper direction) from the facing surface 73 toward the exposed surface 72 side or in the diagonally upward direction (rising portion 34 ). The rising portion 34 is formed in a substantially tapered shape (a tapered shape) from its upper end (tip 33B) toward its lower end (base end 33A).

(Side wall) On the cover body 1, a side wall 31 is arranged in a manner surrounding the periphery of the top portion 32. In the example of FIG. 9A and FIG. 9B, the side wall 31 is provided in a manner surrounding the outer side surface 35 of the peripheral portion 33. At least a portion of the side wall 31 faces the outer side surface 35. In the case of FIG. 9A and FIG. 9B, the portion of the side wall 31 facing the outer side surface 35 of the 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 downward compared to the top portion 32, and at least a portion of the extended portion becomes a portion for locking the lid 1 in the container 101 when the lid 1 is installed in the container 101.

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

The side wall 31 is formed similarly to the rising portion 34, and is formed into a generally conical shape (a tapered shape at the front end) 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 conical shape toward the downward direction, so that when the cover body 1 is installed in the container 101, the cover body 1 can be firmly locked in the container 101.

(Locking structure forming portion) The locking structure forming portion 40 is a portion that forms a structure that locks the cover body 1 to the container 101 when the cover body 1 is mounted on the container 101. In the example of FIG. 9A and FIG. 9B, 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 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 body 1 is mounted on the container 101.

[3-2 Example 2] As shown in FIGS. 10A and 10B , the cover 1 of the third embodiment may be formed with a main body and side walls. This example is called a second example of the third embodiment. 10A and 10B are diagrams showing a second example of the cover 1 according to the third embodiment.

(Top portion) The main body 50 has a top portion 32 and a peripheral portion 33. The top portion 32 is the same as the first example of the second embodiment, so the description thereof is omitted.

(Peripheral portion) The peripheral portion 33 is formed as a portion extending in a direction away from the base end 33A with the outer peripheral edge 32A of the top portion 32 as the base end 33A, similarly to the first example of the second embodiment. However, in the examples of FIG. 10A and FIG. 10B , the peripheral portion 33 is a portion (a hanging portion 42) hanging down from the outer peripheral edge 32A of the top portion 32 in a direction (downward direction) from the exposed surface 72 toward the opposite surface 73 side or in an obliquely downward direction. The hanging portion 42 is formed to be roughly conical (a tapered shape) from its upper end (base end) (base end 33A of the peripheral portion 33) toward the lower end (top end) (top end 33B of the peripheral portion 33).

(Side wall) The side wall 31 in the second example of the third embodiment is arranged so as to surround the periphery of the top portion 32. In addition, in the side wall 31 shown in the example of FIG. 10A and FIG. 10B, 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 portion 32.

The side wall 31 is preferably provided with a folded portion 39 having the lower end 38A of the lower side wall 38 as a base end, covering the lower end of the outer peripheral portion 33 and extending to the inner surface 36 side of the outer peripheral portion 33 . In the example of FIGS. 9A and 9B , the folded portion 39 is provided to surround the inner surface 36 of the outer peripheral portion 33 . In addition, the top end of the folded portion 39 may be in a non-contact state with respect to the facing surface 73 side of the top surface portion 32 , or may be in a state in contact with the facing surface 73 side of the top surface portion 32 .

The side wall 31 is formed similarly to the hanging portion 42, and is formed into a substantially conical shape (a tapered shape) 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). In addition, as in the example of FIG. 10B, when a folded portion 39 is formed, it is also preferable that the folded portion 39 is formed into a conical shape toward the downward direction.

As shown in the example of FIG. 10B , a rolled portion (side wall rolled portion 45) for rolling the member forming the side wall 31 outwardly may be formed at the upper end 37A of the upper side wall 37, or a portion (bent portion) bent outwardly 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.

(Latching structure forming part) In the second example, the locking structure forming part 40 has a laminated structure of the lower side wall 38 and the outer peripheral part 33 (the hanging part 42 in FIG. 10 ). In the example of FIG. 10A , the locking structure forming portion 40 further has a folded portion 39 and has a laminated structure of the folded portion 39 , the outer peripheral portion 33 , and the lower side wall 38 . In addition, as shown in the first example, the locking structure forming portion 40 may further include a portion (upper side portion 41 ) from the outer peripheral edge 32A of the top surface portion 32 to a portion located slightly inside of the outer peripheral edge 32A. According to the locking structure forming part 40 shown in the example of FIG. 10A , the stacked structure of the folded part 39 , the outer peripheral part 33 (the hanging part 42 in FIG. 10 ), and the lower side wall 38 is formed in a tapered shape toward the downward direction. When the lid 1 is installed on the container 101, the lid 1 can be firmly locked on the container 101.

[3-3 Example 3] As shown in FIGS. 14A and 14B , the cover 1 of the third embodiment is formed with a main body and side walls. These main body and side walls can be formed by bending and forming a blank material (not shown). This example is called a third example of the third embodiment. 14A and 14B are diagrams showing a third example of the cover 1 according to the third embodiment. Furthermore, in the state of the container 150 with a lid shown in FIG. 15 , 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 adhering the container 101 and the lid 1 to each other (including adhesion). 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 adhered, but may also be realized by the lid 1 and the container 101 being fitted. Realize.

As shown in FIGS. 14A and 14B , the lid body 201 of the third example includes a top lid portion 202 as a main body portion and a side wall portion 203 as a side wall. The lid 201 of the third example is formed so as to be in contact with the container 101 having an opening 102 formed at the upper end and an edge 103 serving as an upper end edge forming the outer periphery of the opening 102 . Regarding the contact state between the lid 201 and the container 101 , the lid 201 is formed so as to be able to fit into the container 101 having an opening 102 formed at the upper end and an edge 103 serving as the upper end edge forming the outer periphery of the opening 102 .

As shown in Fig. 14A and Fig. 14B, 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. In the example of Fig. 14A and Fig. 14B, the bent portion 204 and the side wall portion 203 are continuously (integrally) formed.

(Top cover) The top cover portion 202 is a portion that covers the opening 102 of the container 101 when the lid body 201 is attached to the container 101 (assembly). The shape of the top cover 202 may be determined according to the shape of the container 101, and examples thereof include a circular shape, an elliptical shape, a triangular shape, a rectangular shape, a polygonal shape, a chamfered shape, and the like.

(Bending portion) The bending portion 204 is formed so as to surround the outer periphery of the top cover portion 202, and is a portion forming a boundary between the top cover portion 202 and the side wall portion 203. The bending portion 204 is formed so that when the cover body 201 is mounted on the container 101, the side wall portion 203 faces the side wall 104 and the edge portion 103 of the container 101. In the examples of FIG. 14A and FIG. 14B, 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 202 and the side wall 203" includes the case where the portion itself constitutes the boundary and the case where the boundary is defined by the inside and the end of the portion (the case where a portion of the top cover 202 and/or the side wall 203 also serves as the bent portion 204). The boundary between the top cover 202 and the side wall 203 is defined at the center of the bent portion 204. When the bent portion 204 has a curved structure (not shown), the bent portion 204 is formed by a portion specified by the range of the curve, and the boundary between the top cover 202 and the side wall 203 is defined at the approximate center of the bent portion 204.

(Side wall part) 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 integrally formed by integrally molding a blank material (not shown) used to form the cover body 201, so that the top cover portion 202, the bent portion 204, and the side wall portion 203 can be integrally formed.

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

(Contact portion) 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 of the side wall portion 203 (first contact portion 274A). Moreover, as shown in FIG. 14B , the contact portion 274 is preferably formed at a portion corresponding to a predetermined area on the side of the opposing surface 273 in the top cover 2 (second contact portion 274B). When the cover 201 is engaged with the container 101, the formation of the contact portion 274 can suppress the risk of the contents of the container 101 leaking to the outside. The first contact portion 274A is preferably formed roughly within the entire outer circumference of the outer end of the edge 103 of the container, and is preferably formed in a ring shape. The second contact portion 274B is preferably formed roughly within the entire outer circumference of the upper end of the edge 103 of the container, and is 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.

According to the lid body 201 of the third example, the top lid part 202, the bent part 204 and the side wall part 203 are formed from one blank material. Therefore, the lid body 201 has elasticity as a whole and can be easily fitted to the container. And the cover is easy to remove. In addition, especially in the case of a lid that is closed by being fitted to the container, the lid 201 as a whole has elasticity, thereby greatly improving the sealing performance when closing the lid and greatly reducing the risk of the lid closing. The contents may leak out of the container.

In addition, the above-described modifications 1 to 4 of the first embodiment can also be applied to the first to third examples of the third embodiment.

[4 Application Examples] (Application Example 1) The lid 1 described above can be used in a container 150 with a lid as shown in Figs. 3A and 3B. Fig. 3A is a perspective view showing an embodiment in which the lid 1 of the first embodiment is attached to a container 101 having an opening 102 formed at the upper end, and an edge 103 formed on the outer periphery of the opening 102. In this example, the lid 1 is joined to the edge 103. Fig. 3B is a cross-sectional view schematically showing the state of the longitudinal section along the C-C line in A of Fig. 3. The container 150 with a lid will be described further using Figs. 3A and 3B.

(container with lid) 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 becomes the joint region R. The method of joining the lid 1 and the container 101 is not particularly limited, and joining methods such as a pressure bonding method and a heat welding 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.

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 whose diameter becomes thicker as it goes upward (and whose front end becomes thinner as it goes downward), 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 may also have the opening 102 formed in a rectangular shape. The container 101 only needs to be able to cover the opening 102 with the lid 1. In addition, the articles stored in the interior (space 105) of the container 101 are not particularly limited, and examples thereof include liquid articles, solid articles, or a combination thereof.

In the container 101 shown in Fig. 3A, etc., the edge 103 of the opening 102 has a flange. The flange may be a rolled portion 108 formed by rolling outward a member forming the container body 110, or may be formed as a portion (curtain) extending outward on a plane.

In addition, the lid body 1 may be provided in combination with a container 101 having an opening 102 .

(Applicable example 2) The lid 1 can also be used for the container 150 with a lid shown in FIGS. 11A and 11B . FIG. 11A is a diagram showing an example in which the lid 1 of the first example of the third embodiment is attached to the edge 103 formed around the outer periphery of the opening 102 of the container 101 having the opening 102 formed at the upper end. This example shows an embodiment in which the cover 1 is locked to the edge 103 . FIG. 11B is a cross-sectional view schematically showing a longitudinal cross-section along line I-I in FIG. 11A .

In addition, the cover body 1 of the third embodiment may be provided in combination with a container 101 having an opening 102 .

As explained so far, the cover 1 of the present invention can be applied to such various types of covers 1 . In addition, it can also be applied to the cover body 1 of other forms than the above. The cover body of the present invention has been described in detail above. However, the above examples are only examples of the cover body of the present invention and are not limited thereto. Therefore, appropriate changes can be made without departing from the gist of the present invention. In addition, the structure of the lid body of each example can be used independently as the structure of the said lid body, and it can also be applied by suitably combining the structure of the lid body of each example.

Based on the above description of this specification, the present invention can adopt the following structures [E1] to [E14]. [E1] A lid having a main body formed to be in contact with a 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 part has a hole cover part covering the insertion hole, and a weakened part forming at least a part of the outer peripheral edge of the hole cover part, The weakened portion has a plurality of cut-out portions that penetrate the main body in the thickness direction of the main body, and non-penetrating portions that prevent the main body from penetrating, The insertion hole is formed by applying stress from the outside along the thickness direction of the main body with respect to the insertion portion, When the insertion hole is formed, the non-penetrating portion is broken, and the broken non-penetrating portion forms a fracture surface on a part of the outer peripheral edge of the hole cover portion, and the hole cover portion is displaced together with the fracture surface, and At least part of the fracture surface is located at the top end of the hole cover. [E2] A lid having a main body formed to be in contact with a 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 part has a hole cover part covering the insertion hole, and a weakened part forming at least a part of the outer peripheral edge of the hole cover part, The hole cover portion has a corner portion forming a convex outline portion when the main body is viewed from above, The weakened portion has a plurality of cut-out portions that penetrate the main body in the thickness direction of the main body, and non-penetrating portions that prevent the main body from penetrating, The insertion hole is formed by applying stress from the outside along the thickness direction of the main body with respect to the insertion portion, When the insertion hole is formed, the non-penetrating portion is broken, and the broken non-penetrating portion forms a fracture surface on a part of the outer peripheral edge of the hole cover portion, and the hole cover portion is displaced together with the fracture surface, and At least part of the fracture surface is located at the corner of the hole cover. [E3] Based on the above-mentioned cover body [E1], When the non-penetrating portion is broken, a plurality of the fracture surfaces are formed, and at least a part of at least one of the fracture surfaces is located at the top end portion of the hole cover portion. [E4] The lid according to any one of the above [E1] to [E3], The weakened part has a plurality of the non-penetrating parts, At least one of the non-penetrating portions is broken by externally applying stress to the insertion portion along the thickness direction of the main body. [E5] The lid according to any one of the above [E1] to [E4], The insertion part has a plurality of the hole cover parts, When forming the insertion hole, the fracture surface is formed on a part of the outer peripheral edge of each hole cover portion. [E6] The lid according to any one of the above [E1] to [E5], The non-penetrating portion has a half-cut structure in which the main body is cut into a predetermined depth in the thickness direction of the main body. [E7] The lid according to any one of the above [E1] to [E6], The weakened portion has a structure in which at least three incision portions are formed around the non-penetrating portion. [E8] The lid according to any one of the above [E1] to [E7], A bulge is formed, The insertion part is formed in the formation area of the bulge part. [E9] The lid according to any one of the above [E1] to [E8], The aforementioned main body is formed of paper material. [E10] The lid according to any one of the above [E1] to [E9], It has: a joining area corresponding part corresponding to the area joined to the container along the rim of the container; and a cover area corresponding part consisting of a part located inside from the joining area corresponding part, The insertion portion is formed in the cover area corresponding portion. [E11] The lid according to any one of the above [E1] to [E9], A side wall is provided around the outer periphery of the aforementioned main body, The side wall is configured to be latched to the container along the edge of the container. [E12] The lid according to any one of the above [E1] to [E11], The aforementioned incision portion has a peripheral surface and an end portion, When the two different incisions are respectively used as the first incision and the second incision, at least one set of the first incision and the second incision are arranged so as to be positioned between the first incision and the second incision. The non-penetrating portion is arranged between the end portion and the peripheral surface portion of the second incision portion. [E13] A container with a lid, which has: The aforementioned cover body in any one of the above [E1] to [E12]; and The container has the opening and the rim forming the outer periphery of the opening, The lid is joined to the container. [E14] A combination of a cover and a container, which has: The aforementioned cover body in any one of the above [E1] to [E12]; and The container has the opening and the rim forming an outer periphery of the opening.

1: Cover 2:Subject 5A:Joint area corresponding part 5B: Cover area corresponding part 5C: Outer area corresponding part 6: Insertion part 7: Hole cover part 7A: Top part 8: Vulnerability Department 9: Pivot corresponding part 10: Cut-in part 10A: 1st entry section 10B: 2nd entry part 11:Non-penetrating part 12:Fracture surface 13:Corner part 16:Half cut part 17: bulge 20: Weekly face 21:End 31:Side wall 32:Top face 32A: Outer periphery 33: Peripheral part 33A: base end 33B:Top 34: erected part 35:Outer side 36: Medial side 37: Upper side wall 37A:Upper end 38: Lower side wall 38A:lower end 39: Turnback part 40: Locking structure forming part 41: Upper side 42: sagging part 45: Side wall curling part 50:Subject 51:Window 52: Open hole 53: Reinforcement parts 70: Outer periphery 72: Show your face 73:Opposite side 101:Container 102:Opening part 103: Edge 104:Side wall 105:Space Department 107: Bottom 108: Curly part 110: Container body 150: Containers with lids 151:Joint 201: Cover 202:Top cover 203: Side wall part 204: Bending part 274:Contact Department 274A: 1st contact part 274B: 2nd contact part CT:center HL: Insertion hole R: joint area

[Figure 1] Figure 1A is a top view schematically showing an embodiment of the cover of the first embodiment, Figure 1B is a cross-sectional view schematically showing the state of the longitudinal section along the A-A line of Figure 1A, and Figure 1C is a cross-sectional view schematically showing the cross section of the portion corresponding to the longitudinal section along the A-A line in Figure 1A for another embodiment of the cover of the first embodiment. [Figure 2] Figure 2A is a top view schematically showing a state in which an insertion hole is formed in an embodiment of the cover of the first embodiment, and Figure 2B is a cross-sectional view schematically showing the state of the longitudinal section along the B-B line in Figure 2A. [Figure 3] Figure 3A is an external perspective view showing an embodiment of a container with a cover, and Figure 3B is a cross-sectional view schematically showing the state of the longitudinal section along the C-C line in Figure 3A. [Fig. 4] Fig. 4A to Fig. 4H are diagrams showing an example of the layout of the fragile portion in one embodiment of the cover body of the modification 1 of the first embodiment. [Fig. 5] Fig. 5A is a top view showing another embodiment of the cover body of the modification 2 of the first embodiment, and Fig. 5B is a cross-sectional view schematically showing the state of the longitudinal section along the line D-D in Fig. 5A. [Fig. 6] Fig. 6A is a top view showing one embodiment of the cover body of the second embodiment, and Fig. 6B is a cross-sectional view schematically showing the state of the longitudinal section along the line E-E in Fig. 6A. [Fig. 7] Fig. 7A is a top view schematically showing a state in which an insertion hole is formed in one embodiment of the cover body of the second embodiment, and Fig. 7B is a cross-sectional view schematically showing the state of the longitudinal section along the line F-F in Fig. 7A. [Fig. 8] Fig. 8A to Fig. 8E are diagrams showing an example of the layout of the fragile portion in an embodiment of the cover body of the first modification of the second embodiment. [Fig. 9] Fig. 9A is a perspective view showing an embodiment of the cover body of the first example of the third embodiment, and Fig. 9B is a cross-sectional view schematically showing the state of the longitudinal section along the G-G line in Fig. 9A. [Fig. 10] Fig. 10A is a perspective view showing an embodiment of the cover body of the second example of the third embodiment, and Fig. 10B is a cross-sectional view schematically showing the state of the longitudinal section along the H-H line in Fig. 10A. [Fig. 11] Fig. 11A is a top view showing an embodiment of a container with a cover body, and Fig. 11B is a cross-sectional view schematically showing the state of the longitudinal section along the I-I line in Fig. 11A. [Figure 12] Figure 12A is a top view of an embodiment of a cover body of the fifth modification of the first embodiment, and Figure 12B is a cross-sectional view schematically showing the state of the J-J line longitudinal section in Figure 12A. [Figure 13] Figure 13A is a top view of another embodiment of a cover body of the fifth modification of the first embodiment, and Figure 13B is a cross-sectional view schematically showing the state of the K-K line longitudinal section in Figure 13A. [Figure 14] Figure 14A is a three-dimensional view of an embodiment of a cover body of the third example of the third embodiment, and Figure 14B is a cross-sectional view schematically showing the state of the L-L line longitudinal section in Figure 14A. [Figure 15] is a cross-sectional view schematically showing an embodiment of a container with a cover body of the third example of the third embodiment.

1: Cover

2: Subject

5A:Joint area corresponding part

5B: Covering area corresponding part

5C: Outer area corresponding part

6: Insertion part

7: Hole cover

8: Vulnerability Department

9: Pivot corresponding part

10: Cut-in part

11: Non-penetrating part

16: Half cut

20: Weekly face

70: Periphery

72: Show your face

73: Opposite each other

CT:center

R: joint area

Claims (14)

A cover, characterized in that, it has a main body formed to be in contact with a container, the container having an opening and an edge forming the outer periphery of the opening, the main body having an insertion portion configured to form an insertion hole, the insertion portion having a hole cover portion covering the insertion hole, and a weakened portion forming at least a portion of the outer periphery of the hole cover portion, the weakened portion having a plurality of cut-in portions for penetrating the main body along the thickness direction of the main body, and a non-penetrating portion for preventing 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 part of the outer periphery of the hole cover portion, the hole cover portion is displaced together with the fracture surface, and at least a part of the fracture surface is located at the top end of the hole cover portion. A cover body characterized by: having a main body formed to be in contact with a container having an opening and an edge forming an outer circumference of the opening, The main body has an insertion portion configured to form an insertion hole, The insertion part has a hole cover part covering the insertion hole, and a weakened part forming at least a part of the outer peripheral edge of the hole cover part, The hole cover portion has a corner portion forming a convex outline portion when the main body is viewed from above, The weakened portion has a plurality of cut-out portions that penetrate the main body in the thickness direction of the main body, and non-penetrating portions that prevent the main body from penetrating, The insertion hole is formed by applying stress from the outside along the thickness direction of the main body with respect to the insertion portion, When forming the insertion hole, the non-penetrating portion is broken, and the broken non-penetrating portion forms a fracture surface on a part of the outer peripheral edge of the hole cover portion, and the hole cover portion is displaced together with the fracture surface, and At least part of the fracture surface is located at the corner of the hole cover. The cover according to claim 1, wherein, When the non-penetrating portion is broken, a plurality of the fracture surfaces are formed, and at least a part of at least one of the fracture surfaces is located at the top end portion of the hole cover portion. The cover according to claim 1 or 2, wherein, The weakened part has a plurality of the non-penetrating parts, At least one of the non-penetrating portions is broken by externally applying stress to the insertion portion along the thickness direction of the main body. According to the cover body described in claim 1 or 2, the insertion portion has a plurality of hole cover portions, and when the insertion hole is formed, the fracture surface is formed on a portion of the outer periphery of each hole cover portion. The cover according to claim 1 or 2, wherein the non-penetrating portion has a half-cut structure in which the main body is cut into a predetermined depth in the thickness direction of the main body. The cover according to claim 1 or 2, wherein, The weakened portion has a structure in which at least three incision portions are formed around the non-penetrating portion. According to the cover body described in claim 1 or 2, a bulge is formed, and the insertion portion is formed in the formation area of the bulge. The cover according to claim 1 or 2, wherein the main body is formed of a paper material. The lid body according to claim 1 or 2 has: a joint area corresponding portion corresponding to the area joined to the container along the edge of the container; and a lid area corresponding portion formed by a portion on the inner side of the joint area corresponding portion, the insertion portion is formed in the lid area corresponding portion. The cover according to claim 1 or 2, wherein, A side wall is provided around the outer periphery of the aforementioned main body, The side wall is configured to be latched to the container along the edge of the container. According to the cover body described in claim 1 or 2, the aforementioned cut-in portion has a peripheral surface and an end portion, and when the two different aforementioned cut-in portions are respectively set as the first cut-in portion and the second cut-in portion, at least one set of the aforementioned first cut-in portion and the aforementioned second cut-in portion is configured as follows, that is, the aforementioned non-penetrating portion is formed between the aforementioned end portion of the aforementioned first cut-in portion and the aforementioned peripheral surface of the aforementioned second cut-in portion. A container with a lid, characterized in that it has: The cover described in claim 1 or 2; and The container has the opening and the rim forming the outer periphery of the opening, The lid is joined to the container. A combination of a cover and a container, characterized by: The cover described in claim 1 or 2; and The container has the opening and the rim forming an outer periphery of the opening.