WO2023224131A1

WO2023224131A1 - Lid, container equipped with lid, and combination of lid and container

Info

Publication number: WO2023224131A1
Application number: PCT/JP2023/018892
Authority: WO
Inventors: 裕義林
Original assignee: 株式会社Ky7
Priority date: 2022-05-20
Filing date: 2023-05-22
Publication date: 2023-11-23
Also published as: TWM648822U; TW202408886A; JP2024055747A; JP2024055759A; JP2024055758A

Abstract

Provided are a lid, a container equipped with a lid, and a combination of a lid and a container that make it possible to keep contents from blowing out from the lid in a state where a container is equipped with a lid.　The lid includes a body formed so as to be able to contact a container having an opening and a rim forming the outer periphery of the opening. The body has an insertion part configured so as to be able to form an insertion hole. The insertion part has: a hole cap covering the insertion hole; and a weakened part forming at least part of the outer margin of the hole cap. The weakened part has: a plurality of incisions penetrating through the body in the thickness direction of the body; and a non-penetrating part in which penetration through the body is avoided. The insertion hole is formed by stress being applied to the insertion part from the exterior along the thickness direction of the body. In a case where the insertion hole is formed, then the non-penetrating part is broken, the broken non-penetrating part forms a fracture surface on part of the outer margin of the hole cap, and the hole cap is displaced along with the fracture surface, at least part of the fracture surface being located at a distal end of the hole cap.

Description

Lid, container with lid, combination of lid and container

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

It is widely practiced to store food, drink, etc. (hereinafter also referred to as "contents") in a container with an opening and provide it in the form of a container with a lid attached.

The lid attached to the container is required to be made of paper-based material from the perspective of reducing environmental impact. As a method for attaching a lid to a container, there is a known method (sealing method) in which the lid is bonded to the edge forming the outer periphery of the opening at the upper end of the container using a method such as a heat press. When the content stored in the lid is a liquid such as a soft drink or carbonated drink, Patent Document 1 discloses a method for ingesting the content, in which an insertion part is formed in the lid to form an insertion hole. A method is disclosed in which the contents are sucked out by inserting a straw or the like into the insertion part.

Japanese Patent Application Publication No. 2012-153382

In the technology described in Patent Document 1, the content leaks from the insertion part due to the vibration of the container with a lid when the user moves the container with the lid. If this occurs, there is a risk that the contents may spray out from the insertion portion. Additionally, if the lid is made of a material that has hygroscopic or water-absorbing properties, such as a paper-based material, gaps are likely to form in the insertion part, causing the contents to squirt out from the insertion part. The fear increases. Therefore, there is room for improvement in suppressing the contents from blowing out from the lid.

The present invention has been made in view of these problems, and provides a lid, a container with a lid, and a combination of the lid and the container that can suppress the spouting of the contents from the lid in the state of a container with a lid. The aim is to provide a combination.

The gist of the present invention is the inventions according to the following (1) to (13).

(1) The main body has an opening and an edge forming an outer periphery of the opening and is formed so as to be able to come into contact with a container, and the main body has an insertion part configured to be able to form an insertion hole. , the insertion part has a hole cover part that covers the insertion hole, and a weakened part that forms at least a part of the outer periphery of the hole cover part, and the weakened part is configured to reduce the thickness of the main body. The insertion hole is provided with a plurality of cut portions that penetrate in the direction and a non-penetration portion that avoids penetration of the main body, and the insertion hole is configured to prevent stress from the outside along the thickness direction of the main body with respect to the insertion portion. is formed by applying a load, and when the insertion hole is formed, the non-penetrating part is broken, and the broken non-penetrating part forms a broken surface on a part of the outer periphery of the hole cover part. , wherein the hole cover is displaced together with the fracture surface, and at least a part of the fracture surface is located at a tip of the hole cover.
(2) The main body has an opening and an edge forming an outer periphery of the opening and is formed so as to be able to come into contact with a container, and the main body has an insertion portion configured to be able to form an insertion hole. , the insertion part has a hole cover part that covers the insertion hole, and a weakened part forming at least a part of the outer peripheral edge of the hole cover part, and the hole cover part has, in a plan view of the main body, The weakened portion has a corner portion forming a convex contour portion, and the weakened portion includes a plurality of notches that penetrate the main body in 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 to the insertion portion, and when the insertion hole is formed, the insertion hole is formed by applying stress to the insertion portion from the outside along the thickness direction of the main body. The through part is fractured, the fractured non-penetrating part forms a fracture surface on a part of the outer peripheral edge of the hole cover, and the hole cover is displaced together with the fracture surface; A lid, at least a portion of which is located at the corner of the hole lid.
(3) The above (1), wherein a plurality of fractured surfaces are formed when the non-penetrating portion is fractured, and at least a portion of at least one of the fractured surfaces is located at the tip of the hole cover portion. The lid body described in.
(4) The weakened portion has a plurality of the non-penetrating portions, and at least one of the non-penetrating portions is formed when stress is applied from the outside along the thickness direction of the main body to the insertion portion. The lid according to (1) or (2) above, which is broken.
(5) The insertion part has a plurality of hole cover parts, and when the insertion hole is formed, the fractured surface is formed in a part of the outer periphery of each hole cover part. The lid body according to (1) or (2) above.
(6) The lid according to (1) or (2), wherein 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) The lid according to (1) or (2), wherein the weakened portion has a structure in which at least three cut portions are formed around the non-penetrating portion.
(8) The lid according to (1) or (2) above, wherein a raised portion is formed, and the insertion portion is formed within a region where the raised portion is formed.
(9) The lid body according to (1) or (2) above, wherein the main body is made of a paper-based material.
(10) having a joining area corresponding part corresponding to a region joined to the container along the edge of the container, and a lid area corresponding part comprising a part inside from the joining area corresponding part, The lid according to (1) or (2), wherein the insertion portion is formed in the lid region corresponding portion.
(11) A side wall is provided around the outer periphery of the main body, and the side wall is configured to be able to lock onto the container along the edge of the container. ) or the lid body according to (2).
(12) The cut portion has a peripheral surface portion and an end portion, and when the two different cut portions are respectively defined as a first cut portion and a second cut portion, at least one set of the first cut portion and the second notch are arranged such that the non-penetrating part is formed between the end of the first notch and the peripheral surface of the second notch. The lid according to (1) or (2) above.
(13) The container has the lid according to (1) or (2) above, and the opening and the edge forming the outer periphery of the opening, and the lid is attached to the container. A joined container with a lid.
(14) A combination of a lid and a container, comprising the lid according to (1) or (2) above, and the container having the opening and the edge forming the outer periphery of the opening.

According to the present invention, it is possible to provide a lid, a container with a lid, and a combination of a lid and a container that can suppress the spouting of contents from the lid in the state of a container with a lid.

FIG. 1A is a plan view schematically showing an example of the lid according to the first embodiment. FIG. 1B is a cross-sectional view schematically showing a longitudinal cross-section taken along the line AA in FIG. 1A. FIG. 1C is a cross-sectional view schematically showing a section of another example of the lid according to the first embodiment, corresponding to the vertical section taken along the line AA in FIG. 1A. FIG. 2A is a plan view schematically showing a state in which an insertion hole is formed in an example of the lid according to the first embodiment. FIG. 2B is a cross-sectional view schematically showing the state of the vertical cross-section taken along line BB in FIG. 2A. FIG. 3A is an external perspective view showing an example of a container with a lid. FIG. 3B is a cross-sectional view schematically showing the state of the vertical cross-section taken along the line CC in FIG. 3A. FIGS. 4A to 4H are diagrams illustrating an example of the layout of the weakened portion in an example of the lid body according to Modification 1 of the first embodiment. FIG. 5A is a plan view showing another example of the lid body according to Modification 2 of the first embodiment. FIG. 5B is a cross-sectional view schematically showing the state of the vertical cross-section taken along line DD in FIG. 5A. FIG. 6A is a plan view showing an example of the lid according to the second embodiment. FIG. 6B is a cross-sectional view schematically showing the state of the vertical cross-section taken along the line EE in FIG. 6A. FIG. 7A is a plan view schematically showing a state in which an insertion hole is formed in an example of the lid according to the second embodiment. FIG. 7B is a cross-sectional view schematically showing the state of the vertical cross-section taken along the line FF in FIG. 7A. FIGS. 8A to 8E are diagrams illustrating an example of the layout of the weakened portion in an example of the lid body according to Modification 1 of the second embodiment. FIG. 9A is a perspective view showing an example of the lid body according to the first example of the third embodiment. FIG. 9B is a cross-sectional view schematically showing the state of the vertical cross-section taken along line GG in FIG. 9A. FIG. 10A is a perspective view showing an example of a lid body according to a second example of the third embodiment. FIG. 10B is a cross-sectional view schematically showing the state of the vertical cross-section taken along line HH in FIG. 10A. FIG. 11A is a plan view showing an example of a container with a lid. FIG. 11B is a cross-sectional view schematically showing the state of the vertical cross-section taken along line II in FIG. 11A. FIG. 12A is a plan view showing an example of a lid according to modification 5 of the first embodiment. FIG. 12B is a cross-sectional view schematically showing the state of the vertical cross-section taken along line JJ in FIG. 12A. FIG. 13A is a plan view showing another example of the lid body according to Modification 5 of the first embodiment. FIG. 13B is a cross-sectional view schematically showing the state of the vertical cross-section taken along line KK in FIG. 13A. FIG. 14A is a perspective view showing an example of a lid body according to a third example of the third embodiment. FIG. 14B is a cross-sectional view schematically showing the state of the vertical cross-section taken along line LL in FIG. 14A. FIG. 15 is a sectional view schematically showing an example of a container with a lid according to a third example of the third embodiment.

Hereinafter, the lid according to the present invention will be explained in detail based on the drawings. The lid according to the present invention will be explained by taking as an example a lid used for a container (cup) for holding various beverages, such as a coffee cup, but it may also be used for a lid for a container for storing a beverage. The invention is not limited to this, and can also be applied as a lid for a container containing foodstuffs other than beverages. Furthermore, the lid according to the present invention can also be applied to containers that can accommodate various items other than food and drink, such as parts such as bolts and nuts, and items other than those mentioned above. Further, although the lid according to the present invention will be described below using an example of a lid having a circular shape when viewed from above, the shape of the lid is limited to one having a circular shape when viewed from above. The present invention can also be applied to various shapes other than circular shapes, such as polygonal shapes such as elliptical shapes, rectangular shapes, and triangular shapes, chamfered rectangular shapes, and chamfered polygonal shapes.

Hereinafter, a first embodiment, a second embodiment, a third embodiment, and application examples related to 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 configurations are designated by the same reference numerals and redundant explanation 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. Further, in the following description, directions such as front and back, left and right, up and down, and directions of a horizontal plane are shown for convenience of explanation, but the content of the present invention is not limited to these directions. In the examples shown in FIGS. 1 to 15, the Z-axis direction is the up-down direction (the upper side is the +Z direction, the lower side is the -Z direction), and the X-axis direction is the front-rear direction (the back side is the +X direction, the front side is the -X direction). , the directions along the mutually orthogonal X-axis and Y-axis defined on a plane with the Z-axis direction as the normal, and the plane pasted by the X-axis and Y-axis. The explanation will be based on the assumption that the XY plane is a horizontal plane. The relative size ratios such as the sizes shown in each figure from FIG. 1 to FIG. 15 are described for convenience, and unless otherwise specified, they do not limit the actual size ratios.

[1 First embodiment]
[1-1 Configuration]
The lid 1 according to the first embodiment has a main body 2.

(Body)
As will be described later using FIGS. 3A, 3B, etc., the main body 2 is formed so as to be able to contact the container 101, which has an opening 102 and an edge 103 serving as an upper edge forming the outer periphery of the opening 102. There is. 3A and 3B are a perspective view and a sectional view showing an example of a container 150 with a lid, in which the lid 1 shown in FIGS. 1A and 1B is attached to the container 101. In the example of FIG. 3A, the container 101 is provided with an opening 102 on the upper end side in the vertical direction. The lid 1 in the first embodiment can be used for a container with a lid 150 by joining the main body 2 along the edge 103. FIG. 3B is a cross-sectional view schematically showing a vertical cross-section taken along line CC in FIG. 3A. Note that as the container 101, a container having flexibility at the edge 103 of the opening 102 is more preferably used. However, these things do not prohibit the container 101 from being a container with little or almost no flexibility, such as a metal container.

The lid 1 according to the first embodiment has a joint region R on the main body 2. In the lid 1, a region joined to the edge 103 in a plan view of the lid 1 is referred to as a joining region R. In FIG. 1A, the region corresponding to the joining region R in the main body 2 is the region on the facing surface 73 side of the hatched portion. FIG. 1A is a plan view schematically showing an example of the lid body 1 according to the first embodiment.

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

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

(Joint area corresponding part)
The bonding area corresponding portion 5A is a portion of the lid 1 that corresponds to a region that is bonded to the container 101 along the edge 103 of the container 101. That is, the joint region corresponding portion 5A is a portion of the lid 1 corresponding to the joint region R (the region facing the edge 103 of the container 101 and the region joined to the container 101). In the lidded container 150, the joint region corresponding portion 5A is a portion of the lid 1 that forms the joint 151 between the lid 1 and the container 101. Specifically, in a plan view of the lid 1 (in the example of FIG. 1A, when the Z-axis direction (vertical direction) is the viewing direction), a portion forming the joint region R is defined as the joint region corresponding portion 5A. The joint region corresponding portion 5A is usually formed in an annular shape as shown in FIG. 1A. Particularly, as shown in FIG. 1A, when the edge 103 of the container 101 is formed approximately in an annular shape, the joining region R becomes an annular shape, and the joining region corresponding portion 5A is also formed in a plan view of the lid 1. , is roughly circular. The outer edge of the bonding area corresponding portion 5A is determined according to the position of the outer edge of the bonding area R. The outer edge of the joint region corresponding portion 5A may be located at the outer circumferential edge of the lid 1, or may be located inside the outer circumferential edge of the lid 1 as shown in the example of FIG. 1A. If the bonding region R between the lid 1 and the container 101 is not formed continuously, the portion sandwiched between the adjacent bonding regions R and the portion facing the edge 103 may also be formed into a bonding region corresponding portion 5A, which will be described later. shall be included.

(Lid area corresponding part)
The lid region corresponding portion 5B is a portion of the lid body 1 that is inside from the joint region corresponding portion 5A. That is, the lid region corresponding portion 5B is a portion inside from the inner edge of the joining region corresponding portion 5A, and the outer peripheral end of the lid region corresponding portion 5B is common to the inner edge of the joining region corresponding portion 5A. The lid region corresponding portion 5B is a portion of the lidded container 150 that covers the opening 102. In addition, as shown in the example of FIG. 1A, the portion outside from the outer peripheral end of the lid region corresponding portion 5B of the lid body 1 is referred to as an outer region corresponding portion 5C.

(insertion part)
The main body 2 has an insertion portion 6 configured to be able to form an insertion hole. The insertion hole HL is a hole into which a member can be inserted from the outside, and a specific example of the member that can be inserted from the outside is a straw or the like. The insertion hole HL is formed by applying stress from the outside along the thickness direction of the main body 2 to the insertion part 6, as shown in FIGS. 2A and 2B. 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. FIG. 2A is a diagram showing a state in which an insertion hole HL is formed when stress is applied downward (-Z direction) from the outside to the insertion portion 6 in the lid 1 according to the first embodiment. It is. FIG. 2B is a cross-sectional view schematically showing the state of the vertical cross-section taken along line BB in FIG. 2A.

Although the position of the insertion part 6 is not particularly limited, in the example of FIG. 1A, it is formed in the lid region corresponding part 5B. Further, in this example, it is formed near the center CT of the lid region corresponding portion 5B. Note that the arrangement of the cut portion 10 that forms the insertion portion 6 and will be described later is not limited to the example shown in FIG. 1A. The position of the notch portion 10 may be determined so that the insertion portion 6 shown in FIG. 1A is appropriately rotated.

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

(hole cover)
The hole cover portion 7 is comprised of a portion that covers the insertion hole HL. The hole cover part 7 is a part surrounded by a part (hinge corresponding part 9) that becomes a hinge part when the insertion hole HL is formed (when it is pushed open) and a weakened part 8, which will be described later. In the example of FIG. 1A, four are formed around the non-penetrating part 11 forming the weakened part 8. In this example, the two hole cover parts 7 are separated by the notch part 10 as a boundary. Note that when the insertion hole HL is formed, not only the case where the hole cover part 7 rotates at a certain angle about a specific position, but also the case where the hinge corresponding part 9 is rotated at the base end (the base of the hole cover part 7). This includes a case where the hole cover 7 is gradually curved and displaced toward the tip 7A side of the hole cover 7.

(Weakening part)
The weakened portion 8 is a portion that forms at least a part of the outer circumferential edge 70 of the hole cover portion 7 , and is a portion that can form the outline of the hole cover portion 7 together with the hinge corresponding portion 9 . The weakened portion 8 has a cut portion 10 and a non-penetrating portion 11. The weakened portion 8 guides the position where division occurs (divided position) when a lifting or pressing force is applied to the weakened portion 8 to form a divided portion in the main body 2 . For example, in the example of FIG. 1A, when a force is applied to push down the portion corresponding to the insertion portion 6 from the exposed surface 72 side to the opposing surface 73 side, the non-penetrating portion 11 is destroyed as shown in FIGS. 2A and 2B. A fractured surface 12 is generated, and division occurs along the cross section forming the fractured surface 12 and the notch 10, and the hole cover 7 is pushed down to form the insertion hole HL (the insertion hole HL is in an open state). ).

(notch part)
The cut portion 10 penetrates the main body 2 in the thickness direction (Z-axis direction) of the main body 2. A plurality of notches 10 are formed in the main body 2. In the example of FIG. 1A, each cut portion 10 is formed as a straight cut line, but this is just an example. Note that, in FIG. 1A, for convenience of explanation, the notch 10 is shown with a relatively large width. This also applies to FIGS. 2 to 15.

In the lid 1 according to the first embodiment, the cut portion 10 may be formed in a curved shape, as shown in FIGS. 4C, 4D, etc., for example. Moreover, although the cut portions 10 are arranged radially around the non-penetrating portion 11 described later, this is also an example, and the arrangement is not limited to this. However, from the viewpoint of easily forming a structure in which at least a part of the fractured surface is located at the tip of the hole cover part 7 as described later, it is preferable that the cut parts 10 are arranged radially around the non-penetrating part 11. is preferred. The cut portion 10 has a structure (through structure) cut in the vertical direction (thickness direction, Z-axis direction) from one surface (exposed surface 72) to the other surface (opposing surface 73) of the main body 2. There is. The cut portion 10 has a circumferential surface portion 20 and an end portion 21 . The peripheral surface portion 20 extends in the longitudinal direction of the notch portion 10, and an end portion 21 is formed at the notch end (end of the peripheral surface portion 20). Note that the cut portion 10 can function as a gas venting portion. Here, the gas venting portion refers to a portion through which gas can pass from one side of the main body 2 to the other side (from the opposing surface 73 side to the exposed surface 72 side).

The weakened portion 8 has a structure in which at least two notches 10 are formed around the non-penetrating portion 11, and preferably three or more notches 10 are formed as shown in FIG. 4A. A structure is formed. If at least three notches 10 are formed around the non-penetrating part 11, the non-penetrating part 11 can be cut with the fracture surface 12 formed by breaking the non-penetrating part 11 positioned at the tip 7A of the hole cover part 7. The hole cover part 7 can be formed so as to surround the periphery of the position corresponding to the part 11, and when a straw or the like is inserted into the insertion hole HL, the straw or the like can be evenly supported by the hole cover part 7. becomes easier. From this point of view, four notches 10 may be formed around the non-penetrating part 11 as shown in FIG. 1A, or five or more notches 10 may be formed around the non-penetrating part 11 as shown in FIG. 4B. Cut portions 10 (six cut portions 10 are formed in the example of FIG. 4B) may be formed.

(non-penetrating part)
The non-penetrating portion 11 is a portion of the weakened portion 8 that avoids penetrating the main body 2. The non-penetrating portion 11 can be defined as a portion intended to form a portion (broken surface) of the outer peripheral edge 70 of the hole cover portion 7 excluding the hinge corresponding portion 9 and the peripheral surface portion 20. In the example of FIG. 1A, the arrangement of the non-penetrating portions 11 is determined such that the cut portions 10 are arranged radially around the non-penetrating portions 11. Further, in the example of FIG. 1A, the non-penetrating portion 11 is formed as a portion (continuous portion) in which the formation of a cut in the main body 2 is avoided. However, this does not prohibit the non-penetrating part 11 from being a part cut halfway into the main body 2 (a part forming a half-cut structure cut to a predetermined depth to the extent that the main body 2 is not penetrated). For example, the non-penetrating portion 11 may be a portion having a half-cut structure (half-cut portion 16), as shown in FIG. 1C. FIG. 1C is a sectional view showing an example in which the non-penetrating portion 11 has a half-cut structure. Note that the half-cut portion 16 is not limited to a portion cut in the thickness direction of the main body 2 to half the thickness of the main body 2. The half-cut portion 16 has a structure in which it is cut more than half the thickness of the main body 2 while avoiding penetrating the main body 2, or it is cut in the thickness direction of the main body 2 to an extent less than half the thickness of the main body 2. Contains structure.

Although the number of non-penetrating portions 11 formed is one in the example of FIG. 1A, a plurality of non-penetrating portions 11 may be formed. For example, in the example shown in FIG. 4D, the cut portion 10 is formed in a curved shape, and three non-penetrating portions 11 are provided between the end portions 21 of two different cut portions 10.

(Fracture surface)
When the insertion hole HL is formed due to the stress applied to the insertion part 6, the non-penetrating part 11 is broken, the hole cover part 7 is pushed open, and the broken non-penetrating part 11 becomes the hole cover. A fractured surface 12 is formed in a part of the outer peripheral edge 70 of the portion 7. The fracture surface 12 in this specification is a surface formed when the member forming the main body 2 is torn due to the stress applied to the insertion portion 6.

(Interrelationship between hole cover, non-penetrating part, notch and fracture surface)
When the insertion hole HL is formed in the lid 1, the hole lid 7 is pressed by an external force applied to the insertion portion 6 (the tip 7A of the hole lid 7 is pressed in the direction in which the external force is applied). When the end 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. In the lid 1 according to the first embodiment, at this time, at least a part of the fracture surface 12 is located at the tip 7A of the hole lid 7. The fracture surface 12 is formed in a shape according to the state of fracture of the non-penetrating portion 11 . In the example of FIG. 1A, a broken surface 12 is formed at the tip end 7A of the hole cover 7. For example, when the non-penetrating portion 11 is cut into a cross shape to form the fracture surface 12, the tip portion 7A of each hole cover portion 7 is formed into an angular shape (cusp shape), and the hole cover portion 7 is The end face of the portion of the outer peripheral edge 70 corresponding to the tip portion 7A is in a state where the fractured surface 12 is formed.

In the lid body 1 according to the first embodiment, when a plurality of fracture surfaces 12 are formed when the non-penetrating portion 11 is fractured, at least a portion of at least one fracture surface 12 is formed in the hole lid portion. It is located at the tip 7A of 7. For example, when the non-penetrating portion 11 is fractured to form two fractured surfaces 12, at least one fractured surface 12 is formed such that a portion thereof is located at the tip 7A of the hole cover 7. It is fine if it is done.

As shown in FIG. 1A, when the insertion part 6 has a plurality of hole cover parts 7 and the insertion hole HL is formed, a fractured surface 12 is formed at the tip 7A of at least one hole cover part 7. It would be fine if it had been done. However, for each hole cover part 7, a fractured surface 12 is formed in a part of the outer peripheral edge 70 of the hole cover part 7.

(Material of main body)
The material of the main body 2 is preferably made of paper-based material from the viewpoint of reducing environmental load. For paper-based materials, a slurry of fiber raw materials is drawn onto a mesh, dried or press-dried, and paper is made into a sheet.The raw material sheet made of pulp-based fibers or the like is pulverized using a pulverizer. A so-called air-laid sheet is produced by piling open fiber raw materials such as pulverized pulp using an air stream and fixing the fibers of the stacked material with a binder, by making vegetable fibers and other fibers stick together. In addition to so-called paper, there are also chemical fiber paper, synthetic paper, waterproof paper, coated paper, alternative paper, parchment, wool paper, glass fiber paper, stone paper, ceramic paper, etc., and laminated sheets of multiple sheets of these. Can be mentioned. Furthermore, the paper-based material may not only consist of pulp, but may also contain fibers such as non-pulp natural fibers, synthetic fibers, and recycled fibers, but preferably contains 50% by mass or more of pulp. , more preferably 70% by mass or more, further preferably 80% by mass or more, and particularly preferably one containing 100% by mass of pulp. Paper-based materials can include synthetic resin or natural resin films, non-woven fabrics, wood-based materials such as wood foil, and even composite materials with materials such as aluminum foil. It is preferable that the total content of pulp is 50% by mass or more, and particularly preferably 80% by mass or more of pulp. The higher the pulp content, the more easily the paper-based material is biodegradable, which is preferable.

Although it is preferable that the main body 2 is entirely made of the above-mentioned paper-based material, this prohibits the main body 2 from being partially or entirely made of a material different from the paper-based material. isn't it. For example, the main body 2 may be formed of a laminate of a paper-based material and a resin film material.

[1-2 Action and effect]
With conventional containers with lids attached to the container, when the user moves the container with the lid, there is a problem that the contents leak from the insertion part due to the vibration of the container with the lid during movement. there were. In particular, when the contents generate gas, such as carbonated drinks, when the gas is released from the insertion part, there is a risk that the contents may be blown out together with the gas. Therefore, there is room for improvement in containers with lids in terms of suppressing the contents from blowing out from the lid.

According to the lid 1 according to the first embodiment, the insertion portion 6 has a hole cover portion 7 and a weakened portion 8, and the weakened portion 8 has a cut portion 10 and a non-penetrating portion 11. ing. The non-penetrating portion 11 is formed such that the fracture surface 12 caused by the fracture of the non-penetrating portion 11 is located at the tip 7A of the hole cover portion 7 when the insertion hole HL is formed.

By the way, when the insertion part has a hole cover part and a notch part, when the contents are spouted from the cover body, there is a high possibility that the contents will also leak from the part of the notch part where gas tends to leak. The part of the notch on the tip side of the hole cover is prone to displacement due to the influence of external stress, so the gap in the notch is likely to widen and gas may easily leak out. expensive.

In this regard, according to the lid 1 according to the first embodiment, before the insertion hole HL is formed (at a stage before the insertion hole HL is in the state where the insertion hole HL is opened and the insertion hole HL is formed) (When looking at the state of the lid 1 in ), the part where gas easily leaks, such as the part on the tip 7A side of the hole lid 7, forms the non-penetrating part 11. It is possible to suppress the contents from blowing out from the lid 1 while the container 150 is in the state.

In addition, if the lid is made of paper-based material, the end face of the paper-based material that forms the main body is likely to be exposed at the insertion part, so moisture can penetrate from that end face into the fibers that make up the paper-based material. As a result, there was a risk that the stiffness of the lid body would be significantly impaired and the strength of the insertion portion would be reduced. In particular, if moisture enters near the tip of the hole cover that forms the insertion part, it will cause the area to sag (the stiffness of the paper-based material becomes particularly weak near the tip of the hole cover). , the gap expands near the tip of the hole cover, and there is a possibility that the contents will be more likely to blow out from the cover.

In this respect, according to the lid 1 according to the first embodiment, the non-penetrating portion 11 that is broken when the insertion hole HL is formed has a fracture surface 12 on a part of the outer peripheral edge 70 of the hole lid 7. form. At this time, at least a portion of the fracture surface 12 is located at the tip 7A of the hole cover 7. Since the non-penetrating portion 11 is formed in such a manner that such a state is formed, the non-penetrating portion 11 is formed in the vicinity of the tip 7A of the hole cover portion 7 at a stage before the insertion hole HL is formed. It will be formed. Therefore, according to the lid 1 according to the first embodiment, even when the lid 1 is made of a paper-based material, the stiffness of the paper-based material is unlikely to weaken near the tip 7A of the hole lid 7. , the possibility of the contents blowing out from the lid 1 near the tip 7A of the hole lid 7 can be suppressed.

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

[1-3 Modification example]
(Modification 1)
In the lid 1 according to the first embodiment, when the insertion portion 6 is formed in the main body 2, the layout of the weakened portion 8 forming the insertion portion 6 is not limited to the example of FIG. 1A, The layout may be as shown in FIGS. 4A to 4G (Modification 1). FIGS. 4A to 4G are diagrams for explaining an example of the lid body 1 according to Modification 1 of the first embodiment, respectively.

(Layout of weakened part)
The layout of the weakened portion 8 may be determined depending on various conditions such as the function and design of the weakened portion 8. In the example of the weakened portion 8 shown in FIGS. 4A and 4B, the non-penetrating portion 11 is formed in one place, and the number of notches 10 is three in total in FIG. 4A and six in total in FIG. 4B. has been done. In the examples shown in FIGS. 4A and 4B, the cut portions 10 are formed to extend radially from the non-penetrating portion 11 in different directions.

Furthermore, in the examples shown in FIGS. 4C and 4D, the weakened portion 8 is formed in a C shape (shape imitating the letter C) with a plurality of cut portions 10 and non-penetrating portions 11. Furthermore, as shown in the example of FIG. 4C, the non-penetrating portion 11 may be formed at one location, or as shown in FIG. 4D, the non-penetrating portion 11 may be formed at multiple locations.

In the examples shown in FIGS. 4E and 4F, the weakened portion 8 has a plurality of notches 10 and non-penetrating portions 11, respectively, in an N-shape (shape imitating the letter N) and a W-shape (shape imitating the letter W). It is formed in a similar shape. In these examples, the non-penetrating portion 11 is formed at or near a position where the extending directions of two cut portions 10 having different longitudinal directions intersect. Further, in both the examples shown in FIGS. 4E and 4F, non-penetrating portions 11 are formed at multiple locations.

In the example shown in FIG. 4G, the weakened portion 8 has a horizontal U-shape (imitating the letter U) in which the portion corresponding to the tip portion 7A is formed in a straight line by a plurality of notches 10 and a non-penetrating portion 11. It is formed in the shape of a horizontally tilted shape. In the example of FIG. 4G, the entire portion corresponding to the tip 7A is formed of a non-penetrating portion 11, and the non-penetrating portion 11 is a half-cut portion 16.

(Modification 2)
In the lid 1 according to the first embodiment, when the weakened part 8 has a plurality of non-penetrating parts 11, when the insertion hole HL is formed, the main body 2 Although all non-penetrating portions 11 may be broken by applying stress from the outside along the thickness direction, it is sufficient that at least one non-penetrating portion 11 is broken. For example, in the weakened part 8 as shown in FIG. 4D, three non-penetrating parts 11 are provided. If the portion 11 is broken, 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 as well, a portion of the hole cover 7 (the portion on the tip 7A side of the hole cover 7) is pushed in, and the insertion hole HL can be formed to a certain size.

(Modification 3)
In the lid 1 according to the first embodiment, as shown in FIG. 4H, when the two different notches 10 are respectively the first notch 10A and the second notch 10B, at least one set of The arrangement of the first notch portion 10A and the second notch portion 10B is such that a non-penetrating portion 11 is formed between the end portion 21 of the first notch portion 10A and the peripheral surface portion 20 of the second notch portion 10B. (Modification 3). FIG. 4H is a diagram for explaining an example of the lid body 1 according to the third modification of the first embodiment.

(Operations and effects of modification 3)
When forming the insertion hole HL in the lid 1, the stress applied to the insertion part 6 tears the non-penetrating part 11 in the direction away from the end 21 starting from the end 21 of the notch 10, and the fractured surface 12 is formed. At this time, the broken surface 12 is often formed along the longitudinal direction of the notch 10 in the lid 1, but when the main body 2 has a paper-based material, the paper-based material forming the main body 2 Depending on the orientation of the fibers contained in the fibers, the direction of fracture of the non-penetrating portion 11 may be in an unintended direction, and the shape of the hole cover portion 7 may be unintended. In this regard, according to the third modification of the first embodiment, the non-penetrating portion 11 is formed between the end portion 21 of the first notch portion 10A and the peripheral surface portion 20 of the second notch portion 10B. Therefore, when the non-penetrating portion 11 is torn in a direction away from the end portion 21 starting from the end portion 21 of the first cut portion 10A, even if the fracture direction of the non-penetrating portion 11 deviates in a slightly unintended direction, It is possible to suppress the possibility that the fracture surface 12 formed by the fracture of the non-penetrating portion 11 merges with the peripheral surface portion 20 of the second notch portion 10B, and the shape of the hole cover portion 7 becomes an unintended shape.

(Modification 4)
In the lid 1 according to the first embodiment, as shown in FIGS. 5A and 5B, a protrusion 17 may be formed on the main body 2 (Modification 4). 5A and 5B are a plan view and a cross-sectional view, respectively, for explaining an example of the lid body 1 according to the fourth modification of the first embodiment. The raised portion 17 is a portion raised toward the exposed surface 72 side. Note that in FIGS. 5A and 5B, the portion of the opposing surface 73 corresponding to the raised portion 17 is a depressed portion. In this case, it is preferable that the insertion portion be formed within the formation region of the raised portion 17 when the main body 2 is viewed from above (when the thickness direction of the main body 2 is taken as the line of sight direction).

(Modification 5)
In the lid 1 according to the first embodiment, a window 51 may be formed in the main body 2 as shown in FIGS. 12A, 12B, 13A, and 13B (Modification 5). 12A and 13A are plan views for explaining an example of a lid body according to a fifth modification of the first embodiment, respectively. 12B and 13B are cross-sectional views for explaining an example of the lid 1 according to the fifth modification of the first embodiment, and FIG. 12B is a longitudinal cross-sectional view taken along the line J--J in FIG. 12A. FIG. 13B is a cross-sectional view schematically showing the state of the longitudinal section taken along line KK in FIG. 13A.
The window portion 51 includes an aperture 52 formed in a portion of the main body 2 and a window covering material that can transmit light and covers at least a part of the area where the aperture 52 is formed (preferably the entire area where the aperture 52 is formed). have The window covering material can be exemplified by transparent or translucent materials. Examples of such materials include colored or uncolored transparent or translucent resin films, cellophane paper, glassine paper, and transparent paper made from cellulose nanofibers (cellulose microfibrils), which are transparent paper-based materials. can be exemplified. The arrangement of the window covering material can be realized, for example, by attaching the window covering material around the opening 52 in a state where it is arranged so as to cover the opening 52. By providing the window 51 with a window member made of a transparent or translucent material attached, the contents of the container 101 can be stored while the lid 1 is connected to the container 101 (closed). can be confirmed.

Note that the shape of the window portion 51 is not limited to that shown in the drawings, and can be formed in any size and shape. For example, the window portion 51 may be formed avoiding the area where the weakened portion 8 is formed as shown in FIGS. 12A and 12B, or the window portion 51 may be formed as shown in FIGS. 13A and 13B. The weakened portion 8 may be formed in the area where the weakened portion 8 is formed. As shown in FIGS. 13A and 13B, when the weakened part 8 is provided in the region where the window 51 is formed, the film or the like that forms the window 51 when a straw or the like is inserted into the weakened part 8. From the viewpoint of preventing the reinforcing member 53 from being torn, it is preferable to form the reinforcing member 53 of a predetermined size including the weakened portion 8 by adhering it to the window portion 51. The material used for this reinforcing member 53 can be arbitrarily selected from conventionally known materials, but it is preferable to use a paper-based material from the viewpoint of reducing environmental load.

[2 Second embodiment]
[2-1 Configuration]
The lid 1 according to the second embodiment has a main body 2, and an insertion portion 6 is formed in the main body 2, as shown in FIGS. 6A and 6B. FIG. 6A is a plan view schematically showing an example of the lid body 1 according to the second embodiment. FIG. 6B is a cross-sectional view schematically showing the state of the vertical cross-section taken along the line EE in FIG. 6A. In the lid 1 according to the second embodiment, the definitions and configurations of the joint region corresponding portion 5A, the lid region corresponding portion 5B, and the outer region corresponding portion 5C of the main body 2, and the material of the main body 2 are the same as those of the first embodiment. Since this is the same as the embodiment, the explanation will be omitted. Moreover, the insertion part 6 has a hole cover part 7 and a weakened part 8. The insertion part 6 is the same as the first embodiment except that the hole cover part 7 has a corner part 13 and the formation position of at least a part of the fracture surface 12 corresponds to the corner part 13. is formed similarly. In the second embodiment, descriptions of the same configurations as in the first embodiment will be omitted.

(hole cover)
In the lid 1 according to the second embodiment, the hole cover 7 of the insertion portion 6 has a corner 13 in a plan view of the hole cover 7. 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 hole cover parts 7. It's okay. In the example of FIG. 6A, two hole cover portions 7 are formed, but this is just an example.

(corner)
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 . In the example of FIG. 6A, the hole cover part 7 is formed in a rectangular shape with four sides corresponding to the weakened part 8 and the hinge corresponding part 9, and corresponds to the corner position of the rectangle formed by the weakened part 8. The portion is a corner portion 13. Note that the corner portion 13 only needs to be formed into a roughly angular shape. Therefore, the range of the corner portion 13 includes not only a portion formed in a sharp shape, but also a portion corresponding to the corner position of the rectangle formed by the weakened portion 8 may be formed in a slightly rounded shape. Even if the portion included in the corner portion 13 and corresponding to the corner position of the rectangle formed by the weakened portion 8 is formed into a slightly flat surface shape, it is included in the corner portion 13.

(Weakening part)
The weakened portion 8 has a cut portion 10 and a non-penetrating portion 11, as shown in the first embodiment. The layout of the weakened part 8 shown in the example of FIG. 6A is different from the layout shown in FIG. It consists of 11 combinations. However, the layout of the weakened portion 8 in the lid 1 according to the second embodiment is not limited to the example shown in FIG. 6A.

(Fracture surface)
Similarly to the first embodiment, in the lid body 1 according to the second embodiment, as shown in FIG. 7A and FIG. The insertion hole HL is formed by applying stress from the outside. Then, when stress is applied, the non-penetrating portion 11 is broken, and the tip 7A side of the hole cover portion 7 is pushed out in the direction of the externally applied stress. Further, the broken non-penetrating portion 11 forms a broken surface 12 on a part of the outer peripheral edge 70 of the hole cover portion 7 .
Furthermore, in the lid 1 according to the second embodiment, at least a portion of the fracture surface 12 is located at the corner 13 of the hole lid 7. In the example of FIG. 7A, as the tip end 7A side of the hole cover 7 is pushed out, the hole cover 7 is displaced together with the fracture surface 12.

In the example of the lid body 1 according to the second embodiment, there are two parallel notches 10 and two notches 10 whose longitudinal direction is orthogonal to the longitudinal direction of these two notches 10. It is formed at a position between the notches 10. Then, when a notch formed at a position between two parallel notches 10 is defined as a first notch, and two notches 10 are defined as a second notch, the first notch is A non-penetrating portion 11 is formed between the end portion and the peripheral surface portion of the second cut portion. However, this is just an example, and does not prohibit the formation of a non-penetrating part 11 between the end of one notch and the peripheral surface of another notch. . However, as will be described later, when the main body 2 of the lid 1 has a paper-based material, the end of one notch and the peripheral surface of the other notch (the end of the first notch) It is preferable that a non-penetrating part 11 is formed between the second cut part and the second cut part.
Note that Modifications 1 to 4 described in the first embodiment may be applied to the second embodiment.

[2-2 Action and effect]
In a lid that can be used for a container with a lid, as described in the first embodiment, when the insertion part has a hole lid and a notch, when the gas in the container blows out from the lid, There is a high possibility that the contents may leak out from the part of the notch where gas tends to leak. If a corner is formed in the hole cover of the notch, the corner of the hole cover is a part where displacement is likely to occur due to the influence of external stress. There is a high possibility that the gap will widen and become an area where gas will easily leak. According to the lid 1 according to the second embodiment, the portion where gas easily leaks, such as the corner portion of the hole lid, forms a non-penetrating portion, so that the state of the container with the lid is This can prevent the contents from blowing out from the lid.

According to the lid 1 according to the second embodiment, since the non-penetrating portion 11 is formed in the corner portion 13 of the hole lid 7, even when the lid 1 is made of a paper-based material, Also, the stiffness near the corner 13 of the hole cover 7 is less likely to weaken, which also makes it possible to suppress the contents from blowing out from the cover 1 near the corner 13 of the hole cover 7.

[2-3 Modification example]
(Modification 1)
In the lid 1 according to the second embodiment, when the insertion portion 6 is formed in the main body 2, the layout of the weakened portion 8 forming the insertion portion 6 is not limited to the example of FIG. 6A, The layout may be as shown in FIGS. 8A to 8E (Modification 1). FIGS. 8A to 8E are diagrams for explaining an example of the lid 1 according to the first modification of the second embodiment, respectively.

(Layout of weakened part)
The layout of the weakened portion 8 may be determined depending on various conditions such as the function and design of the weakened portion 8. In the examples of weakened portions 8 shown in FIGS. 8A to 8E, non-penetrating portions 11 are formed at two locations, and a total of three cut portions 10 are formed. In the example shown in FIGS. 8A to 8E, the weakened portion 8 has a horizontal U-shape (U character It is formed in a shape that imitates the shape of the original (turned sideways). However, in FIG. 8D, the shape is somewhat similar to a horseshoe shape.

In the lid 1 according to the first modification of the first embodiment shown in FIGS. 8A to 8D, when the two different notches 10 are respectively the first notch 10A and the second notch 10B, At least one set of the first notch 10A and the second notch 10B is arranged such that the non-penetrating part 11 is located between the end 21 of the first notch 10A and the peripheral surface 20 of the second notch 10B. The arrangement is such that a In this case, the same functions and effects as those shown in the third modification of the first embodiment can be obtained.

In addition, in the lid body 1 according to the first modification of the second embodiment, as shown in FIG. It may be formed so as to avoid being formed between.

[3 Third embodiment]
[3-1 First example]
The lid 1 according to the third embodiment has a main body 50 and a side wall 31, as shown in FIGS. 9A and 9B. This example will be referred to as the first example of the third embodiment. 9A and 9B are diagrams showing an example of the first example of the lid body 1 according to the third embodiment.

(Body)
The main body 50 has a top surface portion 32, and in the examples shown in FIGS. 9A and 9B, has the top surface portion 32 and an outer peripheral portion 33. In the examples shown in FIGS. 9A and 9B, the material of the main body 50 may be formed from the same material as the material of the main body 2 described in the first embodiment and the second embodiment, so the description thereof will be omitted.

(Top part)
The top surface portion 32 corresponds to a portion that covers the opening 102 when the lid 1 is attached to the container 101, and is similar to the lid area corresponding portion 5B of the main body 2 in the first embodiment and the second embodiment. It has a configuration in which an insertion portion 6 is provided at the top, and therefore, it may be configured similarly to the lid region corresponding portion 5B of the main body 2 in the first embodiment and the second embodiment. Therefore, in the description of the third embodiment, description regarding the insertion portion 6 will be omitted. In addition, in the example of FIG. 9A and FIG. 9B, the example where the insertion part 6 is comprised similarly to the insertion part 6 shown in FIG. 1A is described as an example. This also applies to FIGS. 10A, 10B, 11A, and 11B.

(The outer periphery)
The outer peripheral portion 33 is configured as a portion that extends in a direction away from the base end 33A, with the outer peripheral edge 32A of the top surface portion 32 serving as a 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 a direction (upward) from the opposing surface 73 toward the exposed surface 72 side or in an obliquely upward direction (rising portion 34). There is. The rising portion 34 is formed in a slightly tapered shape from its upper end (tip 33B) to its lower end (base end 33A).

(side wall)
A side wall 31 is arranged on the lid 1 so as to surround the outer periphery of the top surface portion 32. In the example of FIGS. 9A and 9B, the side wall 31 is provided so as to surround the outer surface 35 of the outer peripheral portion 33. In the example shown in FIGS. At least a portion of the side wall 31 faces the outer surface 35. In the case of FIGS. 9A and 9B, the portion of the side wall 31 that faces the outer surface 35 of the outer peripheral portion 33 (the outer surface of the rising portion 34) is the upper side wall 37, and the portion below the upper side wall 37 is The portion serves as a lower side wall 38. The lower side wall 38 extends downward from the top surface portion 32, and at least a portion of this extending portion prevents the lid 1 from attaching to the container 101 when the lid 1 is attached to the container 101. This is the part for locking.

It is preferable that the side wall 31 is provided with a folded portion 39 that extends from the upper end 37A of the upper side wall 37 to the inner surface 36 side of the outer peripheral portion 33, covering the upper end (tip 33B) of the outer peripheral portion 33. In the examples shown in FIGS. 9A and 9B, the folded portion 39 is provided so as to surround the inner surface 36 of the outer peripheral portion 33.

Like the rising portion 34, the side wall 31 is slightly tapered (tapered shape) from its upper end (tip) (upper end 37A of the upper side wall) toward its lower end (base end) (lower end 38A of the lower side wall). is formed. Since the lower side wall 38 is tapered downward, the lid 1 can be securely locked to the container 101 when the lid 1 is attached to the container 101.

(Locking structure forming part)
The locking structure forming portion 40 is a portion that forms a structure that locks the lid 1 to the container 101 when the lid 1 is attached to the container 101. In the example of FIGS. 9A and 9B, the locking structure forming portion 40 has a lower side wall 38. In the example shown in FIGS. The locking structure forming portion 40 may further include a portion (upper portion 41) extending from the outer peripheral edge 32A of the top surface portion 32 to slightly inside the outer peripheral edge 32A. The upper part 41 can be specified as a part that can come into contact with the edge 103 of the container 101 when the lid 1 is attached to the container 101.

[3-2 Second example]
The lid 1 according to the third embodiment may have a main body and a side wall, as shown in FIGS. 10A and 10B. This example will be referred to as the second example of the third embodiment. 10A and 10B are diagrams showing an example of a second example of the lid body 1 according to the third embodiment.

(Top part)
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 that in the first example of the second embodiment, so a description thereof will be omitted.

(The outer periphery)
As in the first example of the second embodiment, the outer peripheral portion 33 is configured as a portion that extends in a direction away from the base end 33A, with the outer peripheral edge 32A of the top surface portion 32 serving as a base end 33A. However, in the examples of FIGS. 10A and 10B, the outer peripheral part 33 is a part that hangs down from the outer peripheral edge 32A of the top surface part 32 in a direction (downward) from the exposed surface 72 toward the opposing surface 73 or in an obliquely downward direction (downward). Section 42). The hanging portion 42 is formed so as to be slightly tapered (tapered) from its upper end (base end) (base end 33A of the outer circumferential portion 33) toward its lower end (tip) (tip 33B of the outer circumferential portion 33). There is.

(side wall)
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. In addition, in the side wall 31 shown in the example of FIGS. 10A and 10B, the portion of the side wall 31 that faces the outer surface 35 of the outer peripheral portion 33 (the outer surface of the hanging portion 42) is a lower side wall 38, A portion above the lower side wall 38 is an upper side wall 37. The upper side wall 37 extends upward from the top surface portion 32.

It is preferable that the side wall 31 is provided with a folded portion 39 that extends from the lower end 38A of the lower side wall 38 to the inner surface 36 side of the outer peripheral portion 33, covering the lower end of the outer peripheral portion 33. In the examples shown in FIGS. 9A and 9B, the folded portion 39 is provided so as to surround the inner surface 36 of the outer peripheral portion 33. Further, the tip of the folded portion 39 may be in a non-contact state with respect to the opposing surface 73 side of the top surface portion 32, or may be in a state in which it is in contact with the opposing surface 73 side of the top surface portion 32. Good too.

Like the hanging portion 42, the side wall 31 is formed to be slightly tapered (tapered shape) from its upper end (upper end 37A of the upper side wall 37) to its lower end (tip) (lower end 38A of the lower side wall 38). has been done. Further, when a folded portion 39 is formed as in the example of FIG. 10B, it is preferable that the folded portion 39 is also formed in a downwardly tapered shape.

At the upper end 37A of the upper side wall 37, as shown in the example of FIG. A bent portion (bent portion) may be formed. At the upper end 37A of the upper side wall 37, the end surface of the member forming the side wall 31 may be exposed.

(Locking structure forming part)
In the second example, the locking structure forming part 40 has a laminated structure of a lower side wall 38 and an outer peripheral part 33 (a hanging part 42 in FIG. 10). In the example of FIG. 10A, the locking structure forming part 40 further has a folded part 39, and has a laminated structure of the folded part 39, the outer peripheral part 33, and the lower side wall 38. Note that, as shown in the first example, the locking structure forming portion 40 may further include a portion (upper portion 41) extending from the outer peripheral edge 32A of the top surface portion 32 to slightly inside the outer peripheral edge 32A. . According to the locking structure forming portion 40 shown in the example of FIG. 10A, the laminated structure of the folded portion 39, the outer peripheral portion 33 (the hanging portion 42 in FIG. 10), and the lower side wall 38 is formed in a downwardly tapered shape. By doing so, when the lid 1 is attached to the container 101, the lid 1 can be securely locked to the container 101.

[3-3 Third example]
As shown in FIGS. 14A and 14B, the lid 1 according to the third embodiment forms a main body and a side wall, and the main body and the side wall are made of a blank material (not shown). It may be formed by bending and molding. This example will be referred to as the third example of the third embodiment. 14A and 14B are diagrams showing a third example of the lid body 1 according to the third embodiment. Note that the lid 1 is joined to the container 101 in the state of a container 150 with a lid shown in FIG. In the first and second examples of the third embodiment, the lid 1 and the container 101 are joined together by adhering (including adhesion) the container 101 and the lid 1 to each other. In the third example of the third embodiment, bonding of the lid 1 to the container 101 is not limited to the case where the lid 1 is bonded to the container 101; It may be realized by being fitted into the container 101.

The lid body 1 according to the third example has a canopy part 202 as a main body part and a side wall part 203 as a side wall, as shown in FIGS. 14A and 14B. The lid 201 according to the third example is formed so as to be able to come into contact with the container 101, which has an opening 102 formed at the upper end and an edge 103 serving as the upper edge forming the outer periphery of the opening 102. ing. Regarding the state of contact between the lid 201 and the container 101, the lid 201 is attached to the container 101, which has an opening 102 formed at the upper end and an edge 103 that forms the outer periphery of the opening 102. Formed to be able to fit together.

As shown in FIGS. 14A and 14B, the lid 201 preferably has a bent portion 204. The bent part 204 is a part that connects the canopy part 202 and the side wall part 203, and in the examples of FIGS. 14A and 14B, the bent part 204 and the side wall part 203 are formed continuously (integrally). .

(Canopy part)
The canopy part 202 becomes a part that covers the opening part 102 of the container 101 when the lid body 201 is attached (equipped) to the container 101. The shape of the canopy part 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, and a chamfered shape.

(bending part)
The bent portion 204 is formed so as to surround the outer peripheral edge of the canopy portion 202 and forms a boundary between the canopy portion 202 and the side wall portion 203. The bent portion 204 is formed such that when the lid 201 is attached to the container 101, the side wall portion 203 faces the side wall 104 and edge 103 of the container 101. In the examples of FIGS. 14A and 14B, the bent portion 204 has a bent structure, but the bent portion 204 is not limited to having a bent structure. In addition, "the part forming the boundary between the canopy part 202 and the side wall part 203" includes cases where the part itself forms a boundary, cases where a boundary is defined inside or at the end of the part (the canopy part 202 and/or or a case where a part of the side wall portion 203 also serves as the bent portion 204). The boundary between the canopy part 202 and the side wall part 203 is defined at the center of the bent part 204. When the bent portion 204 has a curved structure (not shown), the bent portion 204 is composed of a portion specified in a curved range, and the boundary between the canopy portion 202 and the side wall portion 203 is approximately the same as the bent portion 204. Defined centrally.

(side wall)
The side wall portion 203 is formed in an annular shape along the outer peripheral edge of the canopy portion 202 . The lid 201 according to the third example has a canopy part 202, a bent part 204, and a side wall part 203 integrally formed by integrally molding a blank material (not shown) for forming the lid 201. You can get it at

(Blank material)
In the lid body 201 according to the third example, the blank material is preferably formed from a sheet material including a fiber sheet containing fibers formed from a paper-based material and a resin material. The sheet material 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 part)
The lid body 201 has a contact portion 274 that comes into contact with the container 101 in a state where the lid body 201 is fitted onto the container 101. The contact portion 274 is formed in a predetermined portion of the side wall portion 203 (first contact portion 274A). Furthermore, as shown in FIG. 14B, the contact portion 274 is preferably formed in a portion (second contact portion 274B) corresponding to a predetermined region of the canopy portion 2 on the opposing surface 273 side. When the lid body 201 is fitted to the container 101, the contact portion 274 can suppress the possibility that the contents of the container 101 will leak to the outside. The first contact portion 274A is preferably formed around the entire outer surface end of the edge 103 of the container, and is preferably formed in an annular shape. The second contact portion 274B is preferably formed over approximately the upper end of the edge 103 of the container, and is preferably formed in an annular shape. The first contact portion 274A and the second contact portion 274B may be separated from each other or may be connected.

According to the lid body 201 according to the third example, since the canopy part 202, the bent part 204, and the side wall part 203 are formed from a single blank material, the lid body 201 has elasticity as a whole. Therefore, it is possible to provide a lid body that is easy to fit onto a container and can be easily removed. In addition, especially in the case of a lid that closes by fitting into the container, the lid 201 has elasticity as a whole, which greatly improves the sealing performance when closing the lid. This greatly reduces the risk of the contents leaking out of the container when the lid is closed.

Note that Modifications 1 to 4 described in the first embodiment may 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 for a container with a lid 150 as shown in FIGS. 3A and 3B. FIG. 3A is a perspective view showing an example in which the lid 1 according to the first embodiment is attached to an edge 103 forming the outer periphery of the opening 102 of a container 101 having an opening 102 formed at the upper end. be. 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 vertical cross-section taken along the line CC in FIG. 3A. The description of the lidded container 150 will be continued using FIGS. 3A and 3B.

(container with lid)
The container with a lid 150 has a joint 151 where the container 101 and the lid 1 are joined, and the region of the lid 1 that forms the joint 151 is the joint region R. The method of joining the lid 1 and the container 101 is not particularly limited, and a joining method such as a pressure bonding method or a heat sealing method can be used as appropriate. Below, the case where the lid 1 according to the first embodiment is used in a container with a lid 150 will be described as an example.

The container 101 includes a container main body 110 having a cylindrical side wall 104 whose diameter increases upwardly (tapering downwardly) and a bottom portion 107 and forms a space 105 therein; It has an opening 102 opened 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 an example, and the configuration of the container 101 is not limited. For example, the opening 102 of the container 101 may be formed into a rectangular shape. The container 101 may be of any type as long as the opening 102 can be covered with the lid 1. Moreover, what is stored inside the container 101 (the space 105) is not particularly limited, and may be, for example, a liquid, a solid, 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 portion may be a curl portion 108 formed by winding the member forming the container body 110 outward, or may be formed as a portion (flange portion) extending outward on a plane.

Additionally, the lid 1 may be combined with a container 101 having an opening 102.

(Application example 2)
The lid 1 may be used in a lidded container 150 as shown in FIGS. 11A and 11B. FIG. 11A shows an example in which a lid 1 according to a first example of the third embodiment is attached to an edge 103 forming the outer periphery of an opening 102 of a container 101 having an opening 102 formed at the upper end. FIG. In this example, an embodiment in which the lid 1 is locked to the edge 103 is shown. FIG. 11B is a cross-sectional view schematically showing the state of the vertical cross-section taken along line II in FIG. 11A.

Furthermore, the lid 1 according to the third embodiment may be combined with a container 101 having an opening 102.

As explained above, the lid 1 according to the present invention can be applied to many types of lid 1 as described above. Further, it is also possible to apply the present invention to the lid body 1 in other modes than those described above. Although the lid according to the present invention has been described in detail above, the lid according to the present invention is merely exemplified and is not limited thereto. Therefore, changes may be made as appropriate without departing from the spirit of the invention. Moreover, the structure of the above-described cover body may be applied by using the structure of the cover body of each example independently, or by appropriately combining the structure of the cover body of each example.

Based on the above description of the present specification, the present invention may adopt the configurations shown in the following [E1] to [E14].
[E1] has a main body formed so as to be able to contact a container having an opening and an edge forming an outer periphery of the opening;
The main body has an insertion part configured to be able to form an insertion hole,
The insertion part has a hole cover part that covers the insertion hole, and a weakened part that forms at least a part of the outer peripheral edge of the hole cover part,
The weakened part includes a plurality of notches that penetrate the main body in the thickness direction of the main body, and a non-penetrating part 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 to the insertion part,
When the insertion hole is formed, the non-penetrating portion is broken, the broken non-penetrating portion forms a fractured surface on a part of the outer periphery of the hole cover, and the hole cover is Displaced together with the fractured surface, and at least a part of the fractured surface is located at the tip of the hole cover part.
Lid body.
[E2] has a main body formed so as to be able to contact a container having an opening and an edge forming an outer periphery of the opening;
The main body has an insertion part configured to be able to form an insertion hole,
The insertion part has a hole cover part that covers the insertion hole, and a weakened part that forms 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 contour portion in a plan view of the main body,
The weakened part includes a plurality of notches that penetrate the main body in the thickness direction of the main body, and a non-penetrating part 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 to the insertion part,
When the insertion hole is formed, the non-penetrating portion is broken, the broken non-penetrating portion forms a fractured surface on a part of the outer periphery of the hole cover, and the hole cover is Displaced together with the fracture surface, and at least a portion of the fracture surface is located at the corner of the hole cover.
Lid body.
[E3] A plurality of fractured surfaces are formed when the non-penetrating portion is fractured, and at least a portion of at least one of the fractured surfaces is located at the tip of the hole cover.
The lid described in [E1] above.
[E4] The weakened portion has a plurality of non-penetrating portions,
At least one of the non-penetrating portions is ruptured by applying stress from the outside along the thickness direction of the main body to the insertion portion.
The lid according to any one of [E1] to [E3] above.
[E5] The insertion part has a plurality of the hole cover parts,
When the insertion hole is formed,
The fractured surface is formed in a part of the outer peripheral edge of each of the hole cover parts,
The lid according to any one of [E1] to [E4] above.
[E6] 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.
The lid according to any one of [E1] to [E5] above.
[E7] The weakened portion has a structure in which at least three cut portions are formed around the non-penetrating portion.
The lid according to any one of [E1] to [E6] above.
[E8] A raised part is formed,
The insertion portion is formed within the region where the raised portion is formed.
The lid according to any one of [E1] to [E7] above.
[E9] The main body is made of a paper-based material,
The lid according to any one of [E1] to [E8] above.
[E10] A bonding area corresponding portion corresponding to a region to be bonded to the container along the edge of the container, and a lid area corresponding portion comprising a portion inside from the bonding area corresponding portion,
The insertion part is formed in the lid area corresponding part,
The lid according to any one of [E1] to [E9] above.
[E11] A side wall is provided around the outer periphery of the main body,
the sidewall is configured to be able to lock to the container along the edge of the container;
The lid according to any one of [E1] to [E9] above.
[E12] The cut portion has a peripheral surface portion and an end portion,
When the two different notches are respectively referred to as a first notch and a second notch, the arrangement of at least one set of the first notch and the second notch is similar to that of the first notch. The non-penetrating portion is arranged between the end portion of the portion and the peripheral surface portion of the second cut portion,
The lid according to any one of [E1] to [E11] above.
[E13] The lid according to any one of [E1] to [E12] above,
the container having the opening and the edge forming an outer periphery of the opening;
the lid body is joined to the container;
Container with lid.
[E14] The lid according to any one of [E1] to [E12] above,
the container having the opening and the edge forming an outer periphery of the opening;
Combination of lid and container.

1 : Lid body 2 : Main body 5A : Joint area corresponding part 5B : Lid area corresponding part 5C : Outer area corresponding part 6 : Insertion part 7 : Hole cover part 7A : Tip part 8 : Weakened part 9 : Hinge compatible part 10 : Cut portion 10A: First cut portion 10B: Second cut portion 11: Non-penetrating portion 12: Fractured surface 13: Corner portion 16: Half cut portion 17: Raised portion 20: Surrounding portion 21: End portion 31: Side wall 32 : Top part 32A : Outer edge 33 : Outer part 33A : Base end 33B : Tip 34 : Rising part 35 : Outer surface 36 : Inner surface 37 : Upper side wall 37A : Upper end 38 : Lower side wall 38A : Lower end 39 : Turned part 40 : Locking structure forming part 41 : Upper part 42 : Drooping part 45 : Side wall curl part 50 : Main body 70 : Outer periphery 72 : Exposed surface 73 : Opposing surface 101 : Container 102 : Opening part 103 : Edge part 104 : Side wall 105 : Space portion 107: Bottom portion 108: Curled portion 110: Container body 150: Container with lid 151: Joint portion CT: Center HL: Insertion hole R: Joint region

Claims

a main body formed so as to be able to contact a container having an opening and an edge forming an outer periphery of the opening;
The main body has an insertion part configured to be able to form an insertion hole,
The insertion part has a hole cover part that covers the insertion hole, and a weakened part that forms at least a part of the outer peripheral edge of the hole cover part,
The weakened part includes a plurality of notches that penetrate the main body in the thickness direction of the main body, and a non-penetrating part 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 to the insertion part,
When the insertion hole is formed, the non-penetrating portion is broken, the broken non-penetrating portion forms a fractured surface on a part of the outer periphery of the hole cover, and the hole cover is Displaced together with the fractured surface, and at least a part of the fractured surface is located at the tip of the hole cover part.
Lid body.
a main body formed so as to be able to contact a container having an opening and an edge forming an outer periphery of the opening;
The main body has an insertion part configured to be able to form an insertion hole,
The insertion part has a hole cover part that covers the insertion hole, and a weakened part that forms 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 contour portion in a plan view of the main body,
The weakened part includes a plurality of notches that penetrate the main body in the thickness direction of the main body, and a non-penetrating part 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 to the insertion part,
When the insertion hole is formed, the non-penetrating portion is broken, the broken non-penetrating portion forms a fractured surface on a part of the outer periphery of the hole cover, and the hole cover is Displaced together with the fracture surface, and at least a portion of the fracture surface is located at the corner of the hole cover.
Lid body.
A plurality of fractured surfaces are formed when the non-penetrating portion is fractured, and at least a portion of at least one of the fractured surfaces is located at the tip of the hole cover.
The lid according to claim 1.
The weakened portion has a plurality of non-penetrating portions,
At least one of the non-penetrating portions is ruptured by applying stress to the insertion portion from the outside along the thickness direction of the main body.
The lid body according to claim 1 or 2.
The insertion part has a plurality of hole cover parts,
When the insertion hole is formed,
The fractured surface is formed in a part of the outer peripheral edge of each of the hole cover parts,
The lid body according to claim 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.
The lid body according to claim 1 or 2.
The weakened portion has a structure in which at least three cut portions are formed around the non-penetrating portion.
The lid body according to claim 1 or 2.
A ridge is formed,
The insertion portion is formed within the region where the raised portion is formed.
The lid body according to claim 1 or 2.
The main body is made of a paper-based material,
The lid body according to claim 1 or 2.
a joining region corresponding portion corresponding to a region joined to the container along the edge of the container;
and a lid region corresponding portion comprising a portion inside from the joint region corresponding portion,
The insertion part is formed in the lid area corresponding part,
The lid body according to claim 1 or 2.
A side wall is provided around the outer periphery of the main body,
the sidewall is configured to be able to lock to the container along the edge of the container;
The lid body according to claim 1 or 2.
The cut portion has a peripheral surface portion and an end portion,
When the two different notches are respectively referred to as a first notch and a second notch, the arrangement of at least one set of the first notch and the second notch is similar to that of the first notch. The arrangement is such that the non-penetrating part is formed between the end part of the part and the peripheral surface part of the second notch part,
The lid body according to claim 1 or 2.
The lid body according to claim 1 or 2,
the container having the opening and the edge forming an outer periphery of the opening;
the lid body is joined to the container;
Container with lid.
The lid body according to claim 1 or 2,
the container having the opening and the edge forming an outer periphery of the opening;
Combination of lid and container.