JP7418057B1 - Lid, container with lid, combination of lid and container - Google Patents

Abstract

[Problem] When the lid has a penetration part and is made of paper-based material, suppressing the contents from jumping out from the penetration part onto the lid while the lid covers the opening of the container. To provide a lid body, a container with a lid body, and a combination of a lid body and a container that can be used as a lid body. SOLUTION: A lid body is formed to be joinable to a container having an opening formed at an upper end and an edge forming an outer periphery of the opening, and is joined to the container along the edge of the container. a joint area corresponding part corresponding to a region to be connected to the joint area, and a lid area corresponding part comprising a part inside from the joint area corresponding part, and the lid area corresponding part has a peripheral edge of the lid area corresponding part. It has a baffle part on the inside from the baffle part, and has a height difference part and a penetration part in at least a part of the inside from the inner edge of the baffle part. [Selection diagram] Figure 1

Description

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 and beverages, etc. (hereinafter also referred to as "contents") in a container with an opening at the top end, and then provide the container with the container closed by attaching a lid. There is.

The lid attached to the container is required to be made of a 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. As a structure for ingesting contents from a container with a lid attached (a container with a lid), as shown in Patent Document 1, there is a structure in which the lid is peeled off (removed) from the edge of the container, and a structure in which the lid is peeled off (removed) from the edge of the container. A conceivable structure is to provide a penetration part in the body and insert a member (for example, a straw, etc.) for taking out the contents into the penetration part.

JP2014-84128A

Improved in that when the lid has a penetration part and is made of paper-based material, the contents are prevented from jumping out from the penetration part onto the lid while the lid covers the opening of the container. There is room for

The gist of the present invention is the inventions according to the following (1) to (23) .

(1) Formed so as to be joined to a container having an opening formed at the upper end and an edge forming the outer periphery of the opening, and corresponding to an area along the edge of the container to be joined to the container. It has a joint area corresponding part and a lid area corresponding part formed of a part inside from the joint area corresponding part, and the lid area corresponding part extends inward from a peripheral edge of the lid area corresponding part. It has a baffle part formed as a section , and has a height difference part and a penetration part in at least a part of the inner side from the inner edge of the baffle part, and the joining area corresponding part is formed from the peripheral edge to the The positions in the height direction up to the locations where the baffle parts are formed are the same, the height difference part has a groove part and a wall part, and the groove part has an outer wall part and an inner wall part. The bottom of the groove is formed by the lower end of the outer wall and the lower end of the inner wall, the bottom is formed at a lower position than the baffle part, and the upper end of the inner wall is located at a position in the height direction. The lid body is formed so that it is at the same position as the baffle part or at a higher position than the part where the joining area corresponding part is formed.
(2) The lid according to (1) above, wherein the lid region corresponding portion has the through portion formed inside and/or inside the height difference portion.
(3) The lid according to (1) above, wherein the penetration part and the baffle part are at different positions in the height direction.
(4) The lid according to (1) above, wherein the height difference portion is formed so as to surround the periphery of the penetration portion.
(5) The lid according to (1) above, wherein a flat part is formed inside the height difference part.
(6) The lid according to (5), wherein the plane portion and the baffle portion are at different positions in the height direction.
(7) The lid according to (1) above, wherein the penetration part and the baffle part are at the same heightwise position.
(8) The lid according to (1) above, wherein an inclined portion is formed inside the height difference portion.
(9) The lid according to (1) above, wherein at least a portion of the wall portion in the height difference portion has a wavy shape.
(10) The lid according to (1), wherein the height difference portion has a plurality of grooves, and the bottoms of the plurality of grooves are arranged concentrically.
(11) The lid according to (1) above, wherein the height difference portion has a groove, and an uneven structure is formed in the groove.
(12) The lid body according to (1), wherein the height difference portion has a groove portion, and the width of the groove portion is partially different in a plan view of the lid region corresponding portion.
(13) The lid according to (1) above, wherein the height difference portion has a step portion.
(14) The lid according to (13) above, wherein the stepped portion forms a groove.
(15) The lid area corresponding part is provided with a weakened part that guides the dividing position in the lid area corresponding part, and the weakened part includes a plurality of the through parts and at least two of the through parts. and at least one continuous portion formed between the lids according to (1) above.
(16) The weakened part forms a plurality of the through parts radially around the continuous part,
The lid described in (15) above.
(17) The lid region corresponding portion includes a base portion having a small opening having a smaller opening area than the opening of the container, a small lid portion that opens and closes the small opening, and a base portion and a small lid portion that opens and closes the small opening. a hinge portion connecting the small lid portion to the small lid portion, the small lid portion is configured to be rotatable relative to the base portion about the hinge portion, and at least a portion of the penetrating portion is connected to the small lid portion. The lid body according to (1) above, wherein the lid body is formed at a boundary position between an outer peripheral edge of the small opening and an opening edge of the small opening.
(18) The lid according to (17) above, wherein at least a part of the penetrating portion is formed in the height difference portion.
(19) The lid according to (1) above, which is made of a paper-based material.
(20) A low-density part is formed in a portion from the boundary between the baffle part and the height difference part toward the height difference part, in which the density of fibers constituting the paper-based material is lower than that of the baffle part.
The lid according to (19) above.
(21) The lid according to (1) above, wherein the obstructing portion and the height difference portion are continuously formed.
(22) The lid according to any one of (1) to (21) above, and the container having the opening formed at the upper end, the lid being joined to the container. , a container with a lid.
(23) A combination of a lid and a container, comprising the lid according to any one of (1) to (21) above, and the container having the opening formed at the upper end.

According to the present invention, when the lid has a penetration part and is made of a paper-based material, the contents do not jump out from the penetration part onto the lid while the lid covers the opening of the container. Provided are a lid, a container with a lid, and a combination of a lid and a container that can suppress the above.

FIG. 1A is a plan view 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. 2A is a plan view showing an example of the lid according to the second 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 a plan view showing an example of a lid according to Modification 1 of the second embodiment. FIG. 3B is a cross-sectional view schematically showing the state of the vertical cross-section taken along the line CC in FIG. 3A. FIG. 4A is a plan view showing an example of a lid body according to Modification 2 of the second embodiment. FIG. 4B is a cross-sectional view schematically showing the state of the vertical cross-section taken along line BB in FIG. 4A. 5A and 5B are cross-sectional views showing an example of a lid body according to Modification 1 of the first embodiment. FIG. 6A is a plan view showing an example of a lid body according to Modification 3 of the second embodiment. FIG. 6B is a cross-sectional view schematically showing the state of the vertical cross-section taken along the line DD in FIG. 6A. FIG. 7A is a plan view showing an example of a lid body according to modification example 4 of the second embodiment. FIG. 7B is a cross-sectional view schematically showing the state of the longitudinal cross-section taken along the line EE in FIG. 7A. FIG. 8A is a plan view showing an example of a lid body according to modification example 5 of the second embodiment. FIG. 8B is a cross-sectional view schematically showing the state of the vertical cross-section taken along the line FF in FIG. 8A. FIG. 8C is a cross-sectional view schematically showing the state of the longitudinal cross-section taken along the line GG in FIG. 8C. FIG. 8D is a cross-sectional view schematically showing a vertical cross-sectional state of a portion corresponding to FIG. 8C in another example of modification 5 of the second embodiment. FIG. 9 is a plan view showing an example of the lid according to the fourth embodiment. FIG. 10A is a plan view showing an example of a lid according to modification 6 of the second 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. 10C is a cross-sectional view schematically showing the state of the vertical cross-section taken along line II in FIG. 10A. FIG. 11A is a plan view showing an example of a lid body according to modification 7 of the second embodiment. FIG. 11B is a cross-sectional view schematically showing the state of the vertical cross-section taken along line JJ in FIG. 11A. FIG. 12 is a plan view showing an example of a lid body according to modification example 9 of the second embodiment. FIG. 13A is a plan view showing an example of a lid body according to Modification 8 of the second embodiment. FIG. 13B is a plan view showing an example of a lid according to Modification 8 of the second embodiment. FIG. 14A is a plan view showing an example of the lid according to the third embodiment. FIG. 14B is a cross-sectional view schematically showing the state of the vertical cross-section taken along line KK in FIG. 14A. FIG. 15A is a plan view showing an example of a lid according to Modification 1 of the third embodiment. FIG. 15B is a cross-sectional view schematically showing the state of the vertical cross-section taken along the line LL in FIG. 15A, and a partially enlarged view of the portion indicated by the dashed-dotted line. FIG. 16A is a plan view showing an example of a lid according to Modification 2 of the third embodiment. FIG. 16B is a cross-sectional view schematically showing the state of the vertical cross-section taken along line MM in FIG. 16A. FIG. 17A is a plan view showing an example of a container with a lid. FIG. 17B is a cross-sectional view schematically showing the state of the vertical cross-section taken along line NN in FIG. 17A. FIGS. 18A and 18B are diagrams for explaining the boundary between the obstructing portion and the height difference portion. FIG. 19A is a sectional view showing an example of a lid according to Modification 10 of the second embodiment. FIGS. 19B and 19C are cross-sectional views showing an example of a lid body according to Modification 11 of the second embodiment. FIG. 20A is a plan view showing an example of the lid according to the fifth embodiment. FIG. 20B is a cross-sectional view schematically showing the state of the vertical cross-section taken along the line OO in FIG. 20A. FIG. 21A is a plan view showing an example of the lid according to the sixth embodiment. FIG. 21B is a cross-sectional view schematically showing the state of the vertical cross-section taken along the line PP in FIG. 21A. FIG. 22A is a plan view showing an example of the lid according to the seventh embodiment. FIG. 22B is a cross-sectional view schematically showing the state of the longitudinal cross-section taken along the line QQ in FIG. 22A. FIG. 23A is a plan view showing an example of the lid according to the fifth embodiment. FIG. 23B is a cross-sectional view schematically showing the state of the longitudinal cross-section taken along the line RR in FIG. 23A. FIG. 24A is a plan view showing an example of the lid according to the fifth embodiment. FIG. 24B is a cross-sectional view schematically showing the state of the vertical cross-section taken along the line SS in FIG. 24A. FIGS. 25A and 25B are plan views showing an example of a blank material for manufacturing the lid according to the fifth embodiment. FIG. 26 is a sectional view schematically showing an example of a container with a lid. FIG. 27A is a plan view showing an example of the lid according to the fifth embodiment. FIG. 27B is a cross-sectional view schematically showing the state of the vertical cross-section taken along the line TT in FIG. 27A.

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, the first embodiment, second embodiment, third embodiment, fourth embodiment, fifth embodiment, sixth embodiment, seventh embodiment and applications related to the present invention will be described. Examples will be sequentially explained 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 27, 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. 27 are described for convenience, and unless specifically limited, the actual size ratios are not limited.

[1 First embodiment]
[1-1. structure]
The lid 1 according to the first embodiment is formed so as to cover a container having an opening 502 and to enable the container 501 to be joined. As will be described later using FIGS. 17A, 17B, etc., the lid 1 is joined to a container having an opening 502 formed at the upper end and an edge 503 forming the outer periphery of the opening 502 and serving as the upper edge. possible. 17A and 17B are a perspective view and a cross-sectional view showing an example of a container with a lid 500 in which the lid 1 shown in FIG. 1 is joined to a container 501. The lid 1 can be used by being joined along the edge 503. In the lid 1, the region joined to the edge 503 in a plan view of the lid 1 is called a joining region R. FIG. 1 is a plan view showing one embodiment of the lid body 1. As shown in FIG. Note that as the container 501, a container having flexibility at the edge 503 of the opening 502 is more preferably used. However, these things do not prohibit the container 501 from being a container with little or almost no flexibility, such as a metal container.

In the example of FIG. 1, the bonding region R corresponds to a region that has a shape corresponding to the opening 502 of the container 501 and is formed roughly in an annular shape along the opening 502.

The lid 1 preferably contains or is formed from a paper-based material.

(Paper-based material)
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, and 70% by mass or more. Those containing at least 80% by mass are more preferred, and those containing at least 80% by mass are particularly preferred, and those containing 100% by mass are particularly preferred. 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.

The lid 1 has a joining area corresponding portion 5A. Further, as shown in FIG. 1, the lid body 1 includes a lid area corresponding part 5B and an outer area corresponding part 5C. The lid area corresponding portion 5B is composed of a portion that covers the opening 502. The outer region corresponding portion 5C is configured at a portion outer than the lid region corresponding portion 5B.

(Joint area corresponding part)
The joint region corresponding portion 5A is a portion of the lid 1 that corresponds to a region that comes into contact with the container 501 along the edge 503 of the container 501. 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 503 of the container 501 and the region joined to the container 501). In the lidded container 500, the joint region corresponding portion 5A is a portion of the lid 1 that forms the joint 651 between the lid 1 and the container 501. Specifically, in a plan view of the lid 1 (in the example of FIG. 1, 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. In particular, as shown in FIG. 1, when the edge 503 of the container 501 is formed approximately in an annular shape, the joining region R becomes annular, 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 area 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. If the bonding region R between the lid 1 and the container 501 is not formed continuously, the portion sandwiched between the adjacent bonding regions R and the portion facing the edge 503 is also included in the bonding region corresponding portion 5A described later. shall be included.

(Lid area corresponding part)
The lid region corresponding portion 5B is a portion that covers the opening 502. In the example of FIG. 1, the lid region corresponding portion 5B is a portion of the lid 1 that is inside from the joint region corresponding portion 5A, and the center CT of the lid region corresponding portion 5B is the center of the lid 1. . The lid area corresponding portion 5B is a portion that covers the opening 502 in the lidded container 500. Note that the portion that covers the opening 502 is a portion that covers at least a portion of the opening 502, and includes the case where the small opening 6 is provided as described in the second embodiment and the like.

(Outer area corresponding part)
As shown in the example of FIG. 1, the outer part of the lid area corresponding part 5B of the lid body 1 is the outer area corresponding part 5C, which is the same part as the joining area corresponding part 5A or the part including the joining area R ( (a portion including the bonding area corresponding portion 5A).

In the lid 1, the lid area corresponding part 5B has a baffle part 8 inward from the peripheral edge 74, which is the outer periphery of the lid area corresponding part 5B, and has a baffle part 8 in a plan view of the lid 1 (in FIG. 1B, , when the Z-axis direction is the viewing direction), the baffle part 8 has a height difference part 9 and a penetration part 10 at least in a part inside from the inner edge (inner end 8A).

(obstruction part)
The baffle part 8 prevents the liquid from moving in the height direction (in the Z-axis direction in FIG. 1B) when the container 501 is shaken strongly, for example, when liquid is injected into the container 500 with a lid. This is a part that obstructs the movement of other people. The baffle part 8 is a regulating part that suppresses (obstructs) the expansion of the amplitude of the liquid wave when the container 501 is shaken and waves are generated on the liquid surface. The baffle portion 8 is formed as a portion extending inward (in the example of FIG. 1, toward the center of the lid 1 in plan view) from at least a portion of the peripheral edge 74 of the lid region corresponding portion 5B. . In the example of FIG. 1, the baffle portion 8 is formed as a portion extending inward from the entire circumference of the peripheral edge 74 of the lid region corresponding portion 5B.

It is preferable that the baffle part 8 is spaced apart from the inner circumferential surface of the container 501 in the state of the lidded container 500 using the lid 1. That is, the baffle portion 8 preferably has a predetermined width from the peripheral edge 74 of the lid region corresponding portion 5B, and is preferably formed in an annular shape. The width of the baffle portion 8 (indicated by the symbol HS in FIG. 1B etc.) is the difference between the position of the height difference portion 9 based on the position of the peripheral edge 74 of the lid area corresponding portion 5B (in FIG. 1B etc.) It is preferable that the size is as follows (indicated by reference numeral HW) or less. When the width of the baffle part 8 is within this range, the baffle part 8 becomes a part with a certain degree of narrowness, and the waves caused by the inner peripheral surface of the container 501, the baffle part 8, and the height difference part 9 are reduced. This makes it easier to cause interference, and it becomes easier to obtain the effect of attenuating waves caused by the liquid as the contents of the container 501 by the baffle part 8. In addition, from the viewpoint of easily obtaining the same effect, when the height difference part 9 is formed with a groove part 91 on the outside as described later (as shown in FIGS. 2A, 2B, 6A, 6B, etc. described later), In the case where the groove 91 is formed between the center of the lid area corresponding part 5B and the baffle part 8), the width (HS) of the baffle part 8 is equal to the width (HS) of the peripheral edge 74 of the lid area corresponding part 5B. It is preferable that the size is less than or equal to the difference (denoted with reference symbol HWA in FIG. 6B etc.) from the position of the groove portion 91 (the position of the bottom portion 91C) based on the position.

(height difference section)
The height difference portion 9 is formed inward from the inner end 8A of the baffle portion 8 in the lid region corresponding portion 5B, and forms portions at different positions in the vertical direction. In the example of FIGS. 1A and 1B, the height difference portion 9 is a step portion 90. The step portion 90 has a wall portion 90A extending upwardly or downwardly from the inner end of the baffle portion 8. The wall portion 90A has the inner end of the baffle portion 8 as the base end, and when the height difference portion 9 is the step portion 90, the other end (the opposite end side from the base end portion) of the wall portion 90A has the flat portion 11. It is connected to the outer edge portion 11A of. It is preferable that the baffle portion 8 and the height difference portion 9 are formed continuously. The angle between the wall portion 90A forming the step portion 90 and the baffle portion 8 in the direction in which the wall portion 90A extends with respect to the baffle portion 8 is not particularly limited, but is preferably about 30 degrees to 90 degrees. It is. In FIG. 1, etc., the angle in the direction in which the wall portion 90A extends with respect to the baffle portion 8 is the angle (angle α ), and it is preferable that the angle α is about 30 degrees to 90 degrees. Note that the boundary between the baffle portion 8 and the height difference portion 9 may be bent or smoothly curved.

(Plane part)
In the lid 1, in the example shown in FIG. 1, a flat portion 11 is formed inside the height difference portion 9 in the lid region corresponding portion 5B. However, this is just an example. In the example shown in FIG. 1, the plane portion 11 and the baffle portion 8 are located at different positions in the height direction, and the plane portion 11 is disposed at a higher position than the baffle portion 8.

In the example of FIG. 1, the entire outer periphery of the flat part 11 is connected to the wall part 90A, and the height difference part 9 is formed so as to surround the flat part 11 when the lid 1 is viewed from above.

(penetrating part)
A through portion 10 is formed inside and/or inside the height difference portion 9 in the lid region corresponding portion 5B. In the example of FIG. 1, the penetrating portion 10 is formed in a flat portion 11 formed inside the height difference portion 9. However, this is just an example, and the position of the penetrating portion 10 is not limited to this.

The penetrating portion 10 has a structure (a penetrating structure) cut in the vertical direction (thickness direction) from one surface to the other surface of the lid body 1 (from the exposed surface 72 to the opposing surface 73), and is a so-called notch. There is a department. The shape of the penetrating portion 10 is not particularly limited, and is formed in a cross shape in the example of FIG. 1, but these are only examples and do not limit the shape of the penetrating portion 10.

The penetrating portion 10 can function as an insertion port 12 into which a straw or the like is inserted from the outside.

In the lid body 1 shown in the example of FIG. 1A, the penetration part 10 and the baffle part 8 are located at different positions in the height direction, and the penetration part 10 is located at a higher position (+Z) than the baffle part 8. direction). That is, when the penetrating part 10 is formed in the flat part 11, the position of the penetrating part 10 is higher than the position of the baffling part 8, corresponding to the difference in the positions of the penetrating part 10 and the baffling part 8. It is located in Further, in this example, the height difference portion 9 is formed so as to surround the through portion 10 .

[1-2. Production method]
The manufacturing method for the lid 1 includes, for example, forming a sheet material (original sheet) made of a material corresponding to the material of the lid 1 into a blank material 30 formed by punching according to the shape of the lid 1. The lid body 1 can be manufactured through these steps. In this case, the paper-based material forming the lid 1 is partially stretched. In particular, in the lid 1, as shown in FIG. 18A, the density of the fibers constituting the paper-based material is lower in the boundary between the baffle part 8 and the height difference part 9, or in the area from the boundary toward the height difference part 9. 8 is formed. In the example of FIG. 18A, the low-density portion 13 is formed in a portion of the lid 1 surrounded by a broken line. Furthermore, by forming such a low-density portion 13, the cushioning properties of the low-density portion 13 can provide cushioning properties to the entire lid 1, and the container with lid 500 can be shaken in the vertical direction. Even if a force such as the above is applied and the content contacts (collides with) the baffle part 8 in the direction of arrow N as shown in FIG. 18B, it is considered that the collision force of the content can be alleviated.

Note that performing a shaping process on the blank material 30 is not limited to the case where the lid body 1 is formed only of the blank material 30, and the lid body 1 is formed by forming members such as the tab member 22 on the blank material 30. This shall include cases where the structure has a structure attached to it. An example of the shaping process is a process in which the blank material 30 is passed through an embossing roll to provide the blank material 30 with a concavo-convex structure corresponding to the height difference section 9 .

It is preferable that the raw sheet is composed of a fiber sheet 31 containing a paper-based material.

(Fiber sheet containing paper-based materials)
The fiber sheet 31 containing a paper-based material is a raw material sheet made of so-called paper, pulp-based fiber, etc., which is obtained by drawing a slurry of fiber raw materials onto a mesh, drying or pressing drying, and making paper into a sheet. Plant fibers and other fibers such as so-called air-laid sheets obtained by stacking spread fiber raw materials such as pulverized pulp obtained by crushing with a pulverizer using an air flow and fixing the fibers of the stack with a binder. Examples include so-called papers produced by sticking together. Further, fiber sheets containing paper-based materials include those having a laminated structure in which a plurality of sheets of paper as described above are laminated. In addition to paper-based materials, the fiber sheet 31 includes sheet materials having fibers other than pulp, such as chemical fibers, fibers with functions such as water resistance, metal fibers, and glass fibers.

The fiber sheet 31 may be composed of only the fibers 31A, or may have a structure in which a plurality of fibers 31A are crosslinked with a crosslinking agent, etc., and may contain other additives other than the resin material described below. But that's fine. In the fiber sheet 31, the plurality of fibers 31A are crosslinked with each other using a crosslinking agent, so that the shape of the fiber sheet 31 is stabilized and a defibrated state is less likely to be formed.

(fiber)
The fibers 31A constituting the fiber sheet 31 may be composed of one unit fiber, or may have a structure in which a plurality of unit fibers are intertwined, and the fibers 31A having either structure can be used in the fiber sheet 31. May be included in It is preferable that the fiber sheet 31 is formed by further intertwining a plurality of fibers having such a structure.

[1-3. Modified example]
(Modification 1)
In the lid 1 according to the first embodiment, the flat portion 11 may form an inclined surface portion 15 inside the height difference portion 9 in the lid region corresponding portion 5B, as shown in FIG. 5A. Further, as shown in FIG. 5B, in the lid 1 according to the first embodiment, instead of the flat part 11, a curved surface part 18 is formed inside the height difference part 9 in the lid area corresponding part 5B. Good too. This also applies to the second to fourth embodiments. In the example of FIG. 5B, it is bent at the boundary between the curved surface part 18 and the upper end of the height difference part 9 (the other end 97 of the wall part 90A), but this is just an example, and it may be curved smoothly.

(Modification 2)
In the lid 1 according to the first embodiment, the flat portion 11 may be omitted. Such an embodiment will be referred to as modification 2 of the first embodiment. As a second modification of the first embodiment, for example, with reference to FIG. 19B, a structure in which a stepped portion 90 is used instead of the groove portion 91 forming the height difference portion 9 in FIG. 19B can be exemplified.

[1-4. Action and effect]
In a container with a lid, if the lid has a penetration part and the content stored inside the container with a lid is liquid, suppress the risk of liquid leaking from the penetration part of the lid. You are requested to do so. In particular, when a container with a lid is formed by joining the lid to the container using a sealing method such as a heat sealing method, it is difficult to suppress the possibility of liquid leaking from the penetrating portion of the lid. requested. In other words, when the lid and the container are joined by the sealing method, the lid can be brought into close contact with the container in the joining area, so if the lid has a penetration part, the contents Since the exit of the liquid as a substance is likely to be limited to the penetration part, there is a possibility that the liquid is likely to collect and leak outside from the penetration part, and there is an increasing demand for suppressing leakage from the penetration part. For example, when a user shakes the container with a lid from side to side, the liquid within the container is shaken from side to side. As the liquid moves within the container, the surface of the liquid may ripple. If there is a gap between the lid and the gap, the liquid surface will ripple as it collides with the gap between the container and the lid, causing the liquid to leak from the gap and causing liquid waves (formed on the liquid surface). However, if the gap between the container and the lid is closed and a joint is formed, the liquid waves collide with the joint between the container and the lid and are reflected at the free end, causing the reflection to collapse. A wave of liquid can travel away from the joint. When a liquid wave and a reflected liquid wave resonate, the wave may have a relatively large amplitude. If the amplitude of the liquid wave is maintained, there is a possibility that the crest of the liquid wave will reach the penetration and the liquid will leak out from the penetration.

When the lid body is made of a paper-based material, in addition to the problem of liquid leaking to the outside from the penetration part of the lid body, there is also the problem of liquid that comes into contact with the penetration part seeping into the paper-based material. there is a possibility. Therefore, when the lid is made of a paper-based material, the contents may pass through the opening of the lid through the through-hole when the lid covers the opening of the container (i.e., the container has a lid). It is required to prevent the material from protruding toward the exposed surface side.

In this respect, since the lid 1 according to the first embodiment has the baffle part 8 and the height difference part 9, when the size of the liquid wave further increases, the baffle part 8 and the height difference part 9 are formed. The liquid can impinge near the boundary of the portion 9. In the lid body 1, there is a height difference between the baffle part 8 and the height difference part 9, so when a liquid wave collides near the boundary between the baffle part 8 and the height difference part 9, the liquid wave advances with various phases. It is thought that a state in which directional waves are synthesized is likely to occur, and the waves of the liquid are likely to be canceled out, making it easier to suppress leakage of the liquid from the penetrating portion 10.

[2 Second embodiment]
[2-1. structure]
In the first embodiment, as shown in FIGS. 2A and 2B, the height difference portion 9 may have a groove portion 91 (referred to as a second embodiment). FIG. 2A is a plan view schematically showing an example of the lid body 1 according to the second embodiment. FIG. 2B is a cross-sectional view schematically showing an example of a vertical cross-section taken along the line BB in FIG. 2A. In the lid 1 of the second embodiment, the height difference portion 9 has an outer wall 91A and an inner wall 91B that constitute a groove portion 91 as a wall portion 90A. The step portion 90 corresponds to the side wall (outside wall 91A) of the groove portion 91 that connects to the baffle portion 8, and the step portion 90 forms a part of the groove portion 91. The wall portion of the stepped portion 90 in the first embodiment is an outer wall 91A.

In the example of FIG. 2A, the upper end of the side wall (inner wall 91B) located on the inner side (near the center of the lid area corresponding part 5B) among the side walls forming the groove part 91 is connected to the outer peripheral edge of the flat part 11. ing. The height difference portion 9 forms a difference in position between the bottom surface (bottom portion 91C) of the groove portion 91 and the baffle portion 8 in the height direction (Z-axis direction). In the example of FIG. 2A, the height difference portion 9 also forms a difference in position in the height direction between the bottom portion 91C of the groove portion 91 and the upper end of the inner wall 91B. With the formation of such groove portion 91, a difference in position in the height direction is created between flat portion 11 and baffle portion 8. In the groove portion 91, the outer wall portion (outer wall 91A) and the inner wall portion (inner wall 91B) have different heights (the size of the difference in position in the height direction from the lower end to the upper end), and the outer wall portion (outer wall 91A) Although the height of the inner wall portion (inner wall 91B) is greater than the height of the inner wall 91B, this is just an example. However, in order to make it easier to break up liquid waves near the penetrating portion, it is preferable that the height of the upper end of the inner wall 91B is higher than the height of the upper end of the outer wall 91A. Note that the height of the upper end of the outer wall 91A referred to here refers to the height of the upper end of the outer wall 91A for the outermost groove 91 connected to the baffle part 8 when a plurality of grooves 91 are provided concentrically. show. When a plurality of grooves 91 are provided concentrically, the height of the upper end of the inner wall 91B is the height of the upper end of the inner wall 91B for the innermost groove 91 (the height closest to the center of the lid area corresponding portion 5B). (height of the inner wall located at).

Moreover, the groove part 91 is formed over the entire circumference of the inner edge of the baffle part 8, and is formed in an annular shape.

The lid 1 according to the second embodiment can be manufactured using the same method as the first embodiment. Moreover, the lid body 1 according to the second embodiment can obtain the same effects as the first embodiment. In addition, since the lid 1 according to the second embodiment has the groove 91 so that the bottom 91C is formed below the baffle part 8, the efficiency of suppressing liquid waves by the groove 91 can be increased. Can be done.

[2-2. Modified example]
(Modification 1)
In the lid body 1 according to the second embodiment described above, the groove portion 91 is formed in a shape such that a bottom surface 98 is formed in the bottom portion 91C, but the shape is not limited to this, and as shown in FIGS. 3A and 3B. As shown, the groove portion 91 may be formed in such a shape as to form a top portion 99 that protrudes downward (in the -Z direction). Such a configuration will be referred to as modification 1 of the second embodiment. FIGS. 3A and 3B are diagrams showing an example of a lid body according to Modification 1 of the second embodiment. In the example of FIG. 3A, the top portion 99 is formed on the entire bottom portion 91C of the groove portion 91, but this is just an example and may be formed on a portion of the bottom portion 91C.

(Modification 2)
In the lid 1 according to the second embodiment, the position of the plane part 11 is not limited to being located above the baffle part 8 in the height direction, but as shown in FIG. The portion 11 and the baffle portion 8 may be at the same position in the height direction. In this case, if the penetration part 10 is formed in the plane part 11, the position of the penetration part 10 will be the same position as the baffle part 8 in the height direction. Further, as shown in FIG. 4B, the plane portion 11 may be located lower than the baffle portion 8 in the height direction. In this case, if the penetrating portion 10 is formed in the plane portion 11, the penetrating portion 10 is located lower than the baffle portion 8 in the height direction.

(Modification 3)
In the lid body 1 according to the second embodiment, as shown in FIGS. 6A and 6B, the groove portion 91 has a crank-shaped step (side wall inner step portion 14) between the lower end and the upper end of the inner wall 91B. may be formed. Such a configuration will be referred to as modification 3 of the second embodiment. 6A and 6B are diagrams showing an example of a lid body according to a third modification of the second embodiment. In the example of FIG. 6B, the position where the step is formed in the side wall inner step part 14 is the same in the height direction as the position of the baffle part 8, and the lid 1 is The structure is similar to that in which a groove is formed outside the side wall inner step portion 14. Regarding the side wall inner step portion 14, for example, the step may be formed at a higher position in the height direction than the position of the baffle portion 8, or may be formed at a lower position. good. In the lid 1 according to the second embodiment, when the side wall inner stepped portion 14 is formed, when the content contained in the lidded container 500 is liquid, waves of liquid are It is considered that the wave becomes even more likely to be broken when it collides with the position of the side wall inner step portion 14 in .

(Modification 4)
In the lid 1 according to the second embodiment, the height difference portion 9 may have a plurality of grooves 91, as shown in FIGS. 7A and 7B. Such a configuration will be referred to as modification 4 of the second embodiment. 7A and 7B are diagrams showing an example of a lid body according to a fourth modification of the second embodiment. In the example of FIG. 7A, the bottom portions 91C of the plurality of groove portions 91 are arranged concentrically. In this case, the outer wall 91A is connected to the baffle part 8 at the outermost groove part 91. Regarding the groove portions 91 that are adjacent to each other in the inner and outer directions, an outer wall 91A of the groove portion 91 provided on the inner side is connected to an inner wall 91B provided on the outer side. Moreover, the inner wall 91B is connected to the flat part 11 at the innermost groove part 91. In the example of FIG. 7A, two grooves 91 are formed, but three or more grooves 91 may be formed.

In the lid 1 according to the second embodiment, when a plurality of grooves 91 are formed, when the content contained in the lidded container 500 is liquid, waves of liquid form the grooves 91. The waves are more likely to collide near the boundary between the inner wall and the bottom and the outer wall and the bottom, and the waves are more likely to collide near the boundary between the baffle part 8 and the outer wall. It is thought that it will be easily broken.

(Modification 5)
In the lid 1 according to the second embodiment, as shown in FIGS. 8A, 8B, and 8C, an uneven structure that forms unevenness in the groove portion 91 may be formed. Such a configuration will be referred to as modification 5 of the second embodiment. 8A, FIG. 8B, and FIG. 8C are diagrams showing an example of a lid body according to modification example 5 of the second embodiment. Note that the unevenness referred to here refers to a portion of the lid 1 that protrudes largely in terms of the size of the protrusion on the side of the contact surface with the container 501 (on the opposing surface 73 side) (the portion that protrudes in the −Z direction in FIG. 8B). (first portion 92) and a portion having a smaller degree of protrusion than the first portion 92 (a portion protruding in the −Z direction in FIG. 8B) (second portion 93) are present. In the example shown in FIG. 8B, the first portion 92 has a bottom portion 91C of the groove portion 91 forming a top portion 99, and in the example shown in FIG. 8C, the second portion 93 is formed at four locations. , a bottom 91C of the groove 91 forms a bottom surface 98. The first portion 92 and the second portion 93 may have different shapes as described above, but either may have a top portion 99 or may have a bottom surface 98. As shown in FIGS. 8B and 8C, when the first portion 92 and the second portion 93 have different shapes (top 99, bottom 98), the contents contained in the lidded container 500 It is thought that when the object is liquid, liquid waves are more likely to be broken.

Note that in Modification 5, the second portion 93 may be omitted as shown in FIG. 8D. In this case, the groove portion 91 is discontinuously formed along the inner peripheral edge (inner end 8A) of the baffle portion 8.

(Modification 6)
In the example of the lid body 1 according to the second embodiment, as shown in FIGS. 10A, 10B, and 10C, the width of the groove portion 91 may be partially different in a plan view of the lid region corresponding portion 5B. . Such a configuration will be referred to as modification 6 of the second embodiment. 10A, FIG. 10B, and FIG. 10C are diagrams showing an example of a lid body according to modification 6 of the second embodiment. Here, the width of the groove 91 refers to the width at the upper end position of the portion of the groove 91 where the outer wall 91A and the inner wall 91B face each other when the horizontal direction is the viewing direction. In the groove portion 91 shown in FIG. 10A, a thick portion 94 and a narrow width portion 95 are formed. The width WA of the thick portion 94 is larger than the width WB of the width detail 95. In the wide portion 94, as shown in FIG. 10A, the outer wall 91A and the inner wall 91B are curved in a concave shape when the lid 1 is viewed from above. Therefore, when viewed from the contact surface (facing surface 73) of the lid 1 with the container 501, the outer wall 91A and the inner wall 91B of the wide portion 94 have a convex shape.

(Modification 7)
In the example of the lid 1 according to the second embodiment, as shown in FIGS. 11A and 11B, at least a portion of the wall portion 90A in the height difference portion 9 may have a wavy shape. Such a configuration will be referred to as modification 7 of the second embodiment. FIGS. 11A and 11B are diagrams showing an example of a lid body according to modification 7 of the second embodiment. In the example of FIG. 11A, the inner wall 91B of the groove portion 91 is shaped into a wave shape. It is possible to suppress the possibility that wrinkles will occur in the blank material 30 due to dimensional changes in the paper material due to stretching of the paper material when the blank material 30 is subjected to shaping processing during manufacturing of the lid body 1. Further, in the case where the inner wall 91B of the groove portion 91 is shaped into a wave shape, when the contents contained in the lidded container 500 are liquid, the waves of the liquid are more likely to be broken. considered to be a thing.

(Modification 8)
In the example of the lid body 1 according to the second embodiment, as shown in FIG. 2 etc., the penetration part 10 is not limited to being formed in a cross shape as the insertion port 12, but for example, as shown in FIG. 13A. Alternatively, the penetrating portion 10 may be formed in a C-shape. This also applies to the first embodiment. Note that in FIG. 13A, for convenience of explanation, the groove portion 91 is not shown.

(Modification 9)
In the example of the lid body 1 according to the second embodiment, as shown in FIG. Good too. That is, in the lid 1, the weakened portion 16 may be provided in the lid region corresponding portion 5B to guide the dividing position in the lid region corresponding portion 5B. The weakened portion 16 may include a plurality of penetration portions 10 and at least one continuous portion 17 formed between at least two penetration portions 10. In the example of FIG. 12, the weakened portion 16 forms a plurality of through portions 10 radially around the continuous portion 17. This also applies to the first embodiment. In addition, in FIG. 12, the description of the groove portion 91 is omitted for convenience of explanation.

The example of the lid body 1 according to the ninth modification of the second embodiment can also be applied when the insertion opening 12 is different from the cross shape, for example, when the insertion opening 12 is formed in a C-shape.
In this case, as shown in FIG. 13B, the weakened portion 16 has a structure in which a penetration portion 10 and a continuous portion 17 are arranged along a C-shape. Note that in FIG. 13B, for convenience of explanation, the groove portion 91 is not shown.

(Modification 10)
In the lid 1 according to the second embodiment, at least a portion of the groove 91 may be formed with a curved surface, as shown in FIG. 19A. Such an embodiment will be referred to as modification 2 of the first embodiment. FIG. 19A is a sectional view showing an example of the lid 1 according to Modification 10 of the second embodiment. In the example of FIG. 19A, both the outer wall 91A and the inner wall 91B forming the groove portion 91 have curved surfaces. However, this is an example, and in the case where the lid 1 according to the tenth modification of the second embodiment has a curved surface on at least one of the outer wall 91A and the inner wall 91B that constitute the groove part 91. is included.

(Modification 11)
In the lid 1 according to the second embodiment, the flat portion 11 may be omitted, as shown in FIG. 19B. Such an embodiment will be referred to as modification 11 of the first embodiment. FIG. 19A is a sectional view showing an example of the lid 1 according to Modification 10 of the second embodiment. In the example of FIG. 19B, the inner wall 91B forming the groove 91 continues to extend toward the inside of the lid 1. In the example shown in FIG. Note that in the drawing of FIG. 19B, the height difference portion 9 is shown to be separated outward from the center of the penetrating portion 10, but this does not mean that the center of the lid body 1 is It is not prohibited to be included in the height difference section 9. That is, in the lid 1, the height difference part 9 may include the height difference part 9 up to the center of the lid 1, and the entire inner part from the outer wall 91A of the groove part 91 may form the height difference part 9. This is not limited to the second embodiment, and the same applies to other embodiments such as the first embodiment.

Further, the lid 1 according to the eleventh modification of the second embodiment may be combined with the tenth modification of the second embodiment described above, as shown in FIG. 19C. In the example of FIG. 19C, the entire height difference portion 9 is formed of a curved surface. This example has a structure in which the inner wall 91B forms a bell-shaped portion, and the outer wall 91A is curved outward from the outer periphery of the bell-shaped portion to form the groove portion 91. are doing.

[3 Third embodiment]
[3-1. structure]
In the first embodiment or the second embodiment, the lid body 1 is not limited to the case where the penetration part 10 forms the insertion port 12. As shown in FIGS. 14A and 14B, the lid area corresponding part A penetrating portion 10 may be formed in 5B (third embodiment). In the third embodiment, the lid region corresponding portion 5B includes a base portion 2 having a small opening 6 having an opening area smaller than the opening 502 of the container 501, and a small lid portion 3 that opens and closes the small opening 6. and a hinge part 4 connecting the base part 2 and the small lid part 3, the small lid part 3 is configured to be rotatable with respect to the base part 2 about the hinge part 4, and at least partially A penetrating portion 10 is formed at the boundary between the outer peripheral edge 3A of the small lid portion 3 and the opening edge 6A of the small opening 6. Such a penetrating portion 10 may be used in combination with a penetrating portion (another penetrating portion) configured to function as an insertion port 12.

In FIG. 14A, the base portion 2 is comprised of the portion of the lid 1 excluding the small lid portion 3. In FIG. The base portion 2 is composed of a portion including the lid region corresponding portion 5B excluding the small lid portion 3 and an outer region corresponding portion 5C. The small lid part 3 may have a structure in which a member different from the base part 2 is connected by the hinge part 4, but as shown in the example of FIG. may be formed. However, the term "continuous and integral" includes the case where there is even a slight continuous portion of the small lid part 3 and the base part 2, and includes the case where the small lid part 3 and the base part 2 are partially cut off at the hinge part 4. 14A and 14B are a plan view and a cross-sectional view (a longitudinal cross-sectional view taken along the line KK in FIG. 14A) showing an example of the lid according to the third embodiment. Note that FIG. 14A shows an example in which a base portion 2, a small lid portion 3, a small opening portion 6, and a hinge portion 4 are provided in the lid body 1 according to the second embodiment.

In the example of FIG. 14A, the penetrating portion 10 is formed at or near the upper end of the inner wall 91B (at or near the boundary between the inner wall 91B and the plane portion 11), and in this case, the penetrating portion 10 is generally formed in height. Formed near the end of the difference part 9 (the part of the other end 97 relative to the base end 96) (at a position closer to the other end 97 than the center CT (corresponding to the center of the lid region corresponding part 5B in FIG. 1 etc.)) has been done. With the penetrating portion 10 formed in this manner, the small opening 6 can be opened by pulling up the small lid portion 3 upward (in the direction of arrow F in FIG. 14B). However, this is just an example, and a portion of the penetrating portion 10 may extend into the inner wall 91B. In this case, when the small lid part 3 is pulled up, the small opening part 6 is formed into a part of the inner wall 91B.

[3-2. Modified example]
(Modification 1)
In the lid 1 of the second embodiment, the boundary position between the outer peripheral edge 3A of the small lid part 3 and the opening edge 6A of the small opening 6 is not formed inside and/or inside the height difference part 9. You can. For example, as shown in FIG. 15A, the boundary position between the outer peripheral edge of the small lid and the opening edge of the small opening (more specifically, the boundary between the outer peripheral edge of the small lid and the opening edge of the small opening) A position scheduled to be a boundary position) may be defined in the baffle part. However, in this case, it is preferable that the penetrating portion 10 is not formed at the boundary between the outer peripheral edge of the small lid and the opening edge of the small opening. In the example of FIG. 15, a half-cut portion is formed at the boundary between the outer peripheral edge of the small lid and the opening edge of the small opening, as shown in FIG. 15B. By forming the half-cut portion 19 in this manner, when the small lid portion 3 is not lifted (when not in use) in the state of the container with lid body 500, the baffle portion 8 can be moved to the lid area corresponding portion. A state in which no hole or slit-like structure is formed can be formed from the peripheral edge 74 of the baffle portion 5B to the inner end 8A of the baffle portion. In addition, if the small lid part 3 is lifted in the state of the container with lid body 500, the half cut part 19 will be destroyed and the small opening part 6 will be opened (the outer peripheral edge 3A of the small lid part 3 The opening edge 6A of the small opening 6 is separated, and the outer peripheral edge 3A and the opening edge 6A are formed), and the contents stored inside the lidded container 500 through the small opening 6. You can take things out. Furthermore, in the case of the example shown in FIG. 15A, the penetrating portion 10 is formed in a portion that will become the insertion port 12 (only other penetrating portions are formed). Note that FIGS. 15A and 15B illustrate an example in which a base portion 2, a small lid portion 3, a small opening portion 6, and a hinge portion 4 are provided in the lid body 1 according to the first embodiment.

(Modification 2)
In the lid 1 of the second embodiment, a knob 21 may be provided on the upper surface side of the small lid 3, as shown in FIGS. 16A and 16B. In the example of FIGS. 16A and 16B, when the small opening 6 is closed with the small lid 3, the knob 21 is located on the upper surface side of the exposed surface of the small lid 3 (the exposed surface 72 of the lid 1). It is provided. The structure of the knob 21 is not particularly limited as long as the small lid 3 can be rotated about the hinge 4, but in the examples shown in FIGS. 16A and 16B, the tab member 22 is used as the knob 21. It is provided. The examples shown in FIGS. 16A and 16B are based on the example shown in FIG. 15A in which a knob 21 is provided.

Examples of methods for joining the tab member 22 to the small lid part 3 include various methods such as ultrasonic joining, heat sealing, and joining using adhesives. Ultrasonic bonding is preferable from the viewpoint of strength and the like. The joining position of the tab member 22 and the small lid part 3 in the small lid part 3 is a position where the small lid part 3 can be raised (rotated) by lifting the tab member 22. Not particularly limited.

[4 Fourth embodiment]
[4-1. structure]
In the first embodiment, when the height difference part 9 is a step part 90, as shown in FIG. ), the case where the other end 97 is at a lower position in the height direction (such a lid body will be referred to as the fourth embodiment) is not excluded. FIG. 9 is a diagram showing an example of the lid body 1 according to the fourth embodiment.

In the example of FIG. 9, the other end 97 of the height difference portion 9 is connected to the flat portion 11, and the through portion 10 is formed in the flat portion 11. In this case as well, a low-density portion 13 is formed in a portion from the boundary between the baffle portion 8 and the height difference portion 9 toward the height difference portion 9, where the density of fibers constituting the paper-based material is lower than that of the baffle portion 8. . However, from the viewpoint of the position of the penetration part 10 and the position of the baffle part 8 in the height direction, the example of FIG. 1 of the first embodiment is more preferable than the example of FIG. 9 of the fourth embodiment.

In the above-mentioned first to fourth embodiments of the lid, the lid 1 is joined to the container 501 in the state of a container with a lid 500, which will be described later, to form a joint 651. The joint 651 is a part where the container 501 and the lid 1 are bonded (including adhesive) to each other, and in order to separate the lid 1 and the container 501, the lid 1 is This results in separation from the container 501. The lid 1 is not limited to this type, and as described in the following description of the fifth to seventh embodiments, the lid 201 that fits into the container 501 may have a lid. It may also be applied to container 500.

Each of the lid bodies described in the fifth embodiment to the seventh embodiment has a canopy part 202 and a side wall part 203, as described later, and at least the canopy part 202 is different from the first embodiment. The configuration described in the lid body 1 according to the fourth embodiment can be applied. The description of each lid body of the fifth to seventh embodiments will be continued with reference to the drawings.

[5 Fifth embodiment]
[5-1. composition]
The lid body 201 according to the present invention has a canopy part 202 and a side wall part 203, as illustrated in FIGS. 20A and 20B (fifth embodiment). This form will be referred to as the fifth embodiment. The lid body 201 according to the fifth embodiment has an opening 502 formed at the upper end and an edge 503 serving as the upper edge forming the outer periphery of the opening 502, as described later using FIG. 26 etc. It is formed so that it can come into contact with the container that has it. Regarding the state in which the lid 201 and the container 501 are in contact, the lid 201 is fitted into a container that has an opening 502 formed at the upper end and an edge 503 that forms the outer periphery of the opening 502 and serves as the upper edge. possible. FIG. 20A is a perspective view schematically showing an example of the lid according to the fifth embodiment. FIG. 20B is a cross-sectional view schematically showing an example of the lid according to the fifth embodiment. Note that FIG. 20B shows the state of a longitudinal section taken along the line OO in FIG. 20A. FIG. 26 is a sectional view showing an example of a container with a lid 500 in which the lid 201 shown in FIGS. 20A and 20B is joined to the container 501.

As shown in the examples of FIGS. 20A and 20B, it is preferable that the lid body 201 has a bent portion 204. The bent portion 204 is a part that connects the canopy portion 202 and the side wall portion 203, and in the examples shown in FIGS. 20A and 20B, the bent portion 204 and the side wall portion 203 are continuously (integrally) formed. .

(Canopy part)
As shown in FIG. 26, the canopy part 202 becomes a part that covers the opening 502 of the container 501 when the lid 201 is attached (equipped) to the container 501. The shape of the canopy part 202 may be determined according to the shape of the container 501, 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 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 501, the side wall portion 203 faces the side wall 504 and edge 503 of the container 501. In the examples of FIGS. 20A to 20B, the bent portion 204 has a bent structure, but the bent portion 204 is not limited to having a bent structure, as will be described later. 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 the boundary is defined inside or at the end of the part (the canopy part 202 and/or the side wall part 203). (a case where a part of the portion 203 also serves as the bent portion 204) is included. 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 (for example, FIGS. 24A to 24B showing an example of modification 4 of the fifth embodiment described later), the bent portion 204 is specified by the curved range. The boundary between the canopy part 202 and the side wall part 203 is defined approximately at the center of the bent part 204.

(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 body 201 according to the seventh example is formed by integrally forming the canopy part 202, the bent part 204, the side wall part 203, and the canopy part 202 by integrally molding the blank material 250 for forming the lid body 201. ,Obtainable.

(Blank material)
In the lid 201 according to the fifth embodiment, the blank 250 may be formed in the same manner as the blank 30 shown in the description of the first example of the lid. That is, the blank material 250 is formed from a paper-based material. The paper-based material that can be used in the fifth embodiment is the same as the paper-based material described in the first embodiment, so a detailed explanation will be omitted. Note that the point that the paper-based material described in the first embodiment can be adopted is also applicable to the sixth and seventh embodiments described later, so the description of these embodiments also applies. A detailed explanation of the paper-based material will be omitted.

(contact part)
The lid body 201 has a contact portion 274 that comes into contact with the container 501 in a state where the lid body 201 is fitted into the container 501. 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. 20B, the contact portion 274 is preferably formed in a portion (second contact portion 274B) corresponding to a predetermined region of the canopy portion 202 on the opposing surface 273 side. When the lid body 201 is fitted to the container 501, the contact portion 274 is formed, so that it is possible to suppress the possibility that the contents of the container 501 will leak to the outside. The first contact portion 274A is preferably formed around the entire outer surface end of the edge 503 of the container, and is preferably formed in an annular shape. The second contact portion 274B is preferably formed around the entire upper end of the edge 503 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. The same applies to the contact portion 274 (including the first contact portion 274A and the second contact portion 274B) shown in the fifth embodiment in the sixth and seventh embodiments described below.

In addition, when the canopy part 202 is made to correspond to the lid area corresponding part 50B of the first embodiment to the fourth embodiment, the second contact part 274B is made to correspond to the lid area corresponding part 50B of the first embodiment to the fourth embodiment. It may be formed at approximately the same position as the joining area corresponding portion 50A.

Furthermore, in the examples shown in FIGS. 20A and 20B, a penetrating portion 210 is formed at a predetermined position of the canopy portion 202. As shown in FIG. An insertion port 219 is formed as this penetrating portion 210 . The penetrating portion 210 is formed by the cut portion 208 . In the example of FIG. 20, the cut portion 208 is a cross cut. The insertion port 219 and the penetration portion 210 may be formed in the same manner as the insertion port 12 and the penetration portion 10 described in the first embodiment and the like. The penetrating portion 210 is a portion that penetrates the canopy portion 202 from the exposed surface 272 to the opposing surface 273.

(obstruction part and height difference part)
In the lid body 1, the canopy part 202 may be configured similarly to the lid area corresponding part 5B shown in the first to fourth embodiments and their modifications. For example, in the example of FIG. 20A and FIG. 20B as an example of the lid body 201 according to the fifth embodiment, the canopy portion 202 has a baffle portion 288 inward from the inner peripheral edge of the contact portion 274, and , in a plan view of the lid body 201 (in FIG. 20B, when the Z-axis direction is the line of sight direction), a height difference part 289 and a penetration part 210 are formed at least in a part inside from the inner edge (inner end 288A) of the baffle part 288. and has. The baffling part 288 and the height difference part 289 are the same as the baffle part 8 and the height difference part 9 shown in the first embodiment, respectively, so a detailed description thereof will be omitted. The obstructing portion 288 and the height difference portion 289 are the same in the sixth embodiment and the seventh embodiment, which will be described later, so a detailed explanation of these structures will be omitted in the description of these embodiments as well.

[5-2 Action and effect]
For containers with lids, if the contents of the container are liquid (contains liquid), vibrations caused by vibrations caused by the user or delivery company (transportation by motorbike, etc.) may cause the lid to attach to the container. The problem was that the contents leaked from the penetrating portion of the lid. That is, the surface of the liquid may ripple as the liquid moves within the container 501, and there is a possibility that the crest of the liquid wave will reach the penetrating portion and the liquid will leak to the outside from the penetrating portion. be.

When the lid body is made of a paper-based material, in addition to the problem of liquid leaking to the outside from the penetration part of the lid body, there is also the problem of liquid that comes into contact with the penetration part seeping into the paper-based material. there is a possibility.

Since the lid body 201 according to the fourth embodiment has the obstructing portion 288 and the height difference portion 289 similarly to the first embodiment, it is easy to suppress leakage of liquid from the penetrating portion 10. Therefore, it becomes possible to reduce the penetration of liquid into the penetrating portion 10.

[5-3 Modification example]
(Modification 1 of the fifth embodiment)
In the lid body 201 according to the fifth embodiment, the canopy part 202 and the side wall part 203 may be formed of separate members, as shown in FIGS. 23A, 23B, etc. This form will be referred to as modification 1 of the fifth embodiment. Modification 1 of the fifth embodiment includes a case where a part of the member forming the canopy part 202 forms a part of the side wall part 203, and a case where a part of the member forming the side wall part 203 forms the canopy part. This includes the case where it forms part of the section 202. 23A and 23B show an example in which a part of the member forming the canopy part 202 forms part of the side wall part 203.

A method of forming the lid body 201 of Modification 1 of the fifth embodiment shown in FIGS. 23A, 23B, etc. will be described. For example, a canopy forming member 222 having a first portion 231 for forming a canopy 202 as shown in FIGS. 23B, 25A, and 25B, and a side wall forming member 223 for forming a side wall 203. is prepared. A joining allowance 230 configured to be able to be joined to the side wall forming member 223 as a second portion 232 extends from the outer end (outer edge end) of the first portion 231 of the canopy forming member 222 . By bonding the joining margin 230 of the canopy part forming member 222 to the upper end of the side wall part forming member 223, the bent part 204 is formed by joining the canopy part forming member 222 and the side wall part forming member 223. At this time, the lid body 201 is formed. In this case, as shown in FIG. 25A, FIG. material 252) can be used. As the first blank material 251 for forming the canopy part forming member 222, a sheet material formed in a shape that matches the shape of the canopy part 202 with the joining allowance 230 may be used. The second blank material 252 has a shape corresponding to the shape of the side wall portion 203. For example, when the side wall portion 203 has a shape that decreases or expands in diameter toward the tip, the second blank material 252 is formed in a fan shape (partial fan shape). A sheet material (formed in The side wall portion forming member 223 that forms the side wall portion 203 can be obtained by joining the end edges 253, 253 at both ends of the second blank material 252.

In the first modification of the fifth embodiment, at least one blank material selected from the group consisting of the first blank material 251 and the second blank material 252 may be formed in the same manner as the blank material 30 described above. . That is, at least one blank material selected from the group consisting of the first blank material 251 and the second blank material 252 is formed using a paper-based material similarly to the blank material 30. In the examples shown in FIGS. 23A, 23B, 25A, and 25B, the first blank material and the second blank material are made of paper-based material.

By using the first blank material 251 and the second blank material 252, for example, the lid body 201 can be manufactured as follows. The first blank material 251 is bent downward at the joining allowance 230. Further, the first portion 231 of the first blank material 251 is shaped into a shape corresponding to the baffle portion 288 and the height difference portion 289 to form a shaped body. Furthermore, the first blank material 251 has a through portion 210 formed in the first portion 231 . The second blank material 252 is joined at both end edges 253, 253 to form an annular body. The lid body 201 is obtained by joining the joining margin 230 of the shaped body formed from the first blank material and the vicinity of the upper end of the inner peripheral surface of the annular body formed from the second blank material by heat sealing or the like. .

(Modification 2 of the fifth embodiment)
In the examples shown in FIGS. 20A and 20B, the side wall portion 203 is formed to taper downward (in the -Z direction) (the inner diameter of the cross section becomes smaller (reduced diameter)). This is a preferable example, and the side wall portion 203 may be formed so that it becomes thicker toward the bottom (the inner diameter of the cross section becomes larger (increases in diameter)). Further, the side wall portion 203 may be formed so as not to taper toward the bottom (the cross-sectional inner diameter is constant); (modification 2 of the seventh example). What is shown in Modified Example 2 of the seventh example also applies to the sixth to seventh embodiments described later. Note that the cross section indicates a cut surface of the side wall portion 203 that is observed when the side wall portion 203 is cut along a plane whose normal is the vertical direction. The cross-sectional inner diameter indicates the diameter on the inner circumferential surface side when the cut section (cross-section) is approximately annular.

(Variation 3 of the fifth embodiment)
The canopy part 202 of the lid body 201 according to the fifth embodiment may further include the configuration described in the first embodiment and the second to fourth embodiments. Therefore, for example, in the third modification of the fifth embodiment, a groove 291 may be formed in the canopy part 202, as shown in FIGS. 27A and 27B. 27A and 27B are a perspective view and a sectional view schematically showing an example of a lid body 201 according to Modification 3 of the fifth embodiment. In the example of the lid body 201 shown in FIGS. 27A and 27B, the groove portion 291 may be the same as the groove portion 91 described in the second embodiment, so a detailed description thereof will be omitted. Further, the canopy section 202 may have a configuration corresponding to the structure composed of the small opening section 6, the small lid section 3, the hinge section 4, and the base section 2. Further, the lid body 201 according to the fifth embodiment may be provided with a configuration corresponding to each of the modified examples shown in the first to fourth embodiments. In the lid body 201 according to the third modification of the fifth embodiment, the structure of the insertion port 219 may be omitted if a structure corresponding to the penetration part 210 exists. An example of a case where there is a configuration corresponding to the penetrating part 210 is a case where a small penetrating hole that serves as an air vent hole is provided in the canopy part 202 as the penetrating part 210. What is shown in Modification 3 of the fifth embodiment also applies to the sixth to seventh embodiments described later.

(Variation 4 of the fifth embodiment)
In the lid body 201 according to the fifth embodiment, the bent portion 204 may be constituted by a projecting portion 226, as shown in FIGS. 24A to 24B. Furthermore, even if the convex portion 225 is formed at the end (outer end 228B) of the end portion (inner end 228A, outer end 228B) of the overhanging portion 226 that is closer to the side wall portion 203, or in the vicinity thereof. good.

(overhang)
In an example of the lid body 201 according to the fourth modification of the seventh example shown in FIGS. 24A to 24B, a predetermined area on the outer peripheral end side of the canopy part 202 has a structure that projects diagonally upward (an overhanging structure). Although a portion 226 is formed, the projecting direction of the projecting portion 226 may be in an upward direction or in a lateral direction (in the plane direction of the canopy portion 202). Further, the inner surface 226A side of the projecting portion 226 is a recessed portion (recessed portion 227). The recessed portion 227 has a configuration that generally corresponds to the contact portion 274. The shape of the recessed portion 227 corresponds to the shape of the protruding portion 226. This can be realized depending on the shape of the mold used when forming the lid body 201 from the blank material 250. The size of the recessed portion 227 is preferably large enough to fit the edge 503 of the container 501. If the recessed portion 227 has such a size, when the lid 201 is used as the lidded container 500, the edge 503 will generally fit into the recessed portion 227, and the outer end portion of the edge 503 ( In the examples of FIGS. 24A and 24B, it is possible to bring the outer circumferential surface portion 511 of the edge 503 into surface contact with the recessed portion 227, and to securely attach the lid 201 to the edge 503 of the container 501. becomes easier.

(Protrusion)
As shown in the examples of FIGS. 24A to 24B, a convex portion 225 may be formed on the side wall portion 203. The convex portion 225 is defined, for example, as a portion that protrudes inward (center CT direction, direction from the outer circumferential surface 203B to the inner circumferential surface 203A of the side wall portion 203) at a predetermined position of the side wall portion 203. It is preferable that the convex portion 225 is a convex strip portion formed in a strip shape so as to go around the inner circumferential surface of the side wall portion 203 . A convex structure of a convex portion 225 may be formed on the inner circumferential surface side of the side wall portion 203, and a recess portion 224 may be formed on the outer circumferential surface 203B side of the side wall portion 203 at a position corresponding to the position where the convex structure is formed. By forming such a structure, the shape of the side wall portion 203 can be made more stable.

[6 Sixth embodiment]
[6-1 Configuration]
As shown in FIGS. 21A and 21B, the lid 201 according to the sixth embodiment is different from the fifth embodiment in that it has a canopy part 202 and a side wall part 203 and can be fitted into a container 501. The same is true. Further, in the sixth embodiment, the canopy part 202 is provided with a penetration part 210, a baffle part 288, and a height difference part 289, but this may be the same as in the first to fifth embodiments. Therefore, the explanation will be omitted. FIGS. 21A and 21B are a perspective view and a sectional view showing an example of a lid according to the sixth embodiment.

The lid body 201 according to the sixth embodiment has a configuration in which a part of the side wall part 203 extends above and below the canopy part 202. The side wall portion 203 has an annular (including cylindrical) shape, and includes an upper wall 205 and a lower wall 206. The lower wall 206 is a part that extends below the canopy part 202 (below the lower end of the joint between the canopy part 202 and the side wall part 203), and the upper wall 205 is a part of the lower part of the side wall part 203. It is composed of a portion excluding the wall 206. In the examples shown in FIGS. 21A and 21B, the side wall portion 203 is formed to taper downward. Furthermore, in the examples shown in FIGS. 21A and 21B, the penetrating portion 210 is formed at a predetermined position of the canopy 202 (approximately at the center of the canopy 202 in the example shown in FIG. 21A), but this is just an example.

(Members that form the canopy and side walls, respectively)
In the sixth embodiment, as shown in the second embodiment, the canopy part 202 and the side wall part 203 are formed of separate members. In the example of FIGS. 21A and 21B, the lid body 201 has a canopy forming member 222 and a side wall forming member 223 as the separate members mentioned above, and the canopy forming member 222 and the side wall forming member 223 are joined together. It has a joint that

(Canopy forming member)
The canopy forming member 222 includes a first portion corresponding to the canopy 202 (the first portion 231 of the canopy forming member 222), and a second portion extending from the outer peripheral end of the first portion 231 (the canopy forming member 222). The second portion 232) of the portion forming member 222 is the joining allowance 230 shown in the second embodiment. In the example of FIG. 21A, the second portion 232 of the canopy forming member 222 is a portion (rising portion) that rises diagonally upward or directly upward from the outer peripheral end of the first portion 231 in the state of the lid 201. In this state, the second portion 232 becomes a part of the side wall portion 203 in a state where the second portion 232 is joined to the side wall portion forming member 223.

(Side wall forming member)
The side wall forming member 223 is formed in an annular shape (including a cylindrical shape) and includes a portion forming the upper wall 205 (upper forming portion) and a portion forming the lower wall 206 (lower forming portion). The upper part forming part has a part (first contact wall part 233) that contacts at least the outer surface side with the joining margin 230 which becomes the second part 232 of the canopy part forming member 222.

In the example of FIGS. 21A and 21B, the upper wall 205 (upper forming part) is in contact with the first contact wall part 233 and the joining margin 230 that becomes the second part 232 of the canopy part forming member 222 on the inner side. (second contact wall part 234), and a continuous part 235 that connects the first contact wall part 233 and the second contact wall part 234, and the continuous part 235 is the second part of the canopy part forming member 222. It covers the upper end surface of the joining margin 230. The lower end of the second contact wall portion 234 is located on the upper surface side of the first portion 231 of the canopy forming member 222, and is slightly spaced from the first portion 231 in the examples of FIGS. 21A and 21B. . However, this is just an example, and the lower end of the second contact wall portion 234 may be in contact with the upper surface side of the first portion 231 of the canopy portion forming member 222.

In the example of FIGS. 21A and 21B, the lower wall 206 (lower forming portion) is a portion that extends downward (diagonally downward in FIGS. 21A and 21B) with the lower end of the first contact wall portion 233 as the base end. It has become. The lower wall 206 (lower forming part) is preferably located below the lower surface of the first portion 231 of the canopy forming member 222 in terms of the vertical position, for example.

(Blank material)
The lid body 201 according to the sixth embodiment can be formed by processing a blank material. The blank material is a blank material for forming the canopy forming member 222 and the side wall forming member 223 (referred to as the first blank material and the second blank material, respectively, as described above in the fifth embodiment). can be used.

The first blank material for forming the canopy part forming member 222 may be the same as the first blank material 251 described above in the fifth embodiment, and the shape of the canopy part 202 is further provided with a joining allowance 230. A sheet material formed in a shape that matches the above may be used. The canopy part forming member 222 can form a first part 231 corresponding to the canopy part 202 and a rising part (second part 232 serving as a joining margin) by bending and forming a first blank material. preferable. That is, the second portion 232 is preferably formed by bending the first blank material upward at the peripheral edge position of the first portion 231 (base end of the joining allowance 230). At this time, the first blank material may be shaped into a shape corresponding to the baffle part 288 and the height difference part 289, and may be provided with a structure corresponding to the through part 210.

The second blank material for forming the side wall portion forming member 223 may be the same as the second blank material 252 described above in the second embodiment, and a fan-shaped sheet material may be used. It's okay to be rejected. The edges of the second blank material are joined to form an annular body, and the upper end portion of the annular body is folded back inward at a position corresponding to the continuous portion 235, thereby connecting the first contact wall portion 233 and the annular body. In addition to forming the two contact wall portions 234 and the continuous portion 235, an upper forming portion (a structural portion corresponding to the upper wall 205) can be formed, and a lower forming portion (a structural portion corresponding to the lower wall 206) is further formed. can do. By forming the upper forming part and the lower forming part, the side wall forming member 223 is formed. Note that at least the first contact wall portion 233 and the second contact wall portion 234 are bonded to the bonding margin 230. In the example of FIG. 21B, the first contact wall portion 233, the second contact wall portion 234, and the continuous portion 235 are bonded to the bonding margin 230 to form a bonded portion.

In manufacturing the lid body 201, it is preferable to join the canopy forming member 222 in the above-described annular body formed from the second blank material. That is, the lower end of the joining margin 230 (second portion 232) of the canopy forming member 222 is located at the boundary position between the lower forming part and the upper forming part (the boundary between the upper wall 205 and the lower wall 206) on the inner peripheral surface of the annular body. position), and the joining margin 230 is made to face the inner circumferential surface of the annular body. Further, as described above, by folding back the upper end portion of the annular body inward at a position corresponding to the continuous portion 235 in the annular body, the joining margin 230 is covered from the upper end side. Then, the joining margin 230 is joined to the annular body that will become the side wall part forming member 223 so as to be sandwiched between the first contact wall part 233 and the second contact wall part 234. As a result, the side wall forming member 223 is formed and the lid 201 is obtained.

[6-2 Action and effect]
According to the lid 201 according to the sixth embodiment, it is possible to obtain a lid that can suppress leakage of liquid from the penetrating portion 210, similarly to the first to fifth embodiments.

[7 Seventh embodiment]
[7-1 Configuration]
As shown in FIGS. 22A and 22B, the lid 201 according to the seventh embodiment is different from the fifth embodiment in that it has a canopy part 202 and a side wall part 203 and can be fitted into a container 501. This is similar to the sixth embodiment. Further, in the seventh embodiment, the canopy part 202 is provided with a penetration part 210, a baffle part 288, and a height difference part 289, but this may be the same as in the first to sixth embodiments. , the explanation is omitted. FIGS. 22A and 22B are a perspective view and a sectional view showing an example of a lid according to the seventh embodiment.

The lid body 201 according to the seventh embodiment has a configuration in which a part of the side wall portion 203 extends above and below the canopy portion 202 . The side wall portion 203 has an annular (including cylindrical) shape, and includes an upper wall 205 and a lower wall 206. The lower wall 206 is a part that extends below the canopy part 202 (below the lower end of the joint between the canopy part 202 and the side wall part 203), and the upper wall 205 is a part of the lower part of the side wall part 203. It is composed of a portion excluding the wall 206. In the examples shown in FIGS. 22A and 22B, the side wall portion 203 is formed to taper downward. Furthermore, in the examples shown in FIGS. 22A and 22B, the penetrating portion 210 is formed at a predetermined position of the canopy 202 (in the example shown in FIG. 22A, approximately at the center of the canopy 202), but this is just an example.

(Members that form the canopy and side walls, respectively)
In the seventh embodiment, as described in the fifth embodiment and the sixth embodiment, the canopy part 202 and the side wall part 203 are formed of separate members. In the example of FIGS. 22A and 22B, the lid body 201 has a canopy forming member 222 and a side wall forming member 223 as the above-mentioned separate members, and the canopy forming member 222 and the side wall forming member 223 are joined together. It has a joint that

(Canopy forming member)
The canopy forming member 222 includes a first portion corresponding to the canopy 202 (the first portion 231 of the canopy forming member 222), and a second portion extending from the outer peripheral end of the first portion 231 (the canopy forming member 222). The second portion 232) of the portion forming member 222 is a joining allowance 230 as described in the fifth embodiment and the sixth embodiment. In the example of FIG. 22A, the second portion of the canopy forming member 222 is a portion (hanging portion) extending diagonally downward or directly downward from the outer peripheral end of the first portion 231, and the side wall forming member 222 The second portion 232 becomes a part of the side wall portion 203 in a state where the second portion 232 is joined to the second portion 232 .

(Side wall forming member)
The side wall forming member 223 is formed in an annular shape (including a cylindrical shape) and includes a portion forming the upper wall 205 (upper forming portion) and a portion forming the lower wall 206 (lower forming portion). The lower part forming part has a part (lower first contact wall part 237) that is in contact at least on the outer surface side with the joining margin 230 which becomes the second part 232 of the canopy part forming member 222.

In the examples shown in FIGS. 22A and 22B, the lower forming portion has a portion (lower first contact wall portion 237) that contacts the inner surface side of the joint allowance 230 that becomes the second portion 232 of the canopy forming member 222. 2 contact wall portions 238 ), and a lower end side continuous portion 239 that further connects the lower first contact wall portion 237 and the lower second contact wall portion 238 . It covers the lower end surface of the joining margin 230 which becomes the portion 232 of No. 2. The upper end of the lower second contact wall portion 238 is located on the lower surface (opposing surface 73) side of the first portion 231 of the canopy forming member 222, and in the example of FIGS. 22A and 22B, the upper end of the first portion 231 Preferably, it is spaced apart from. Further, it is preferable that the edge 503 of the container 501 (for example, a part of the outer circumferential surface of the curled portion 508) can fit between the first portion and the upper end of the lower second contact wall portion 238. .

In the examples of FIGS. 22A and 22B, the upper wall 205 (upper forming part) is a part that extends upward (diagonally upward in FIG. 22B) with the upper end of the lower first contact wall 237 as the base end. ing. For example, the upper wall 205 (upper forming part) is preferably located above the upper surface of the first portion 231 of the canopy forming member 222 in terms of the vertical position. As shown in the examples of FIGS. 22A and 22B, it is preferable that the upper forming portion has a curled portion (side wall upper end curled portion 236) formed on its upper end side. In this case, it is possible to prevent the end face of the blank material (the second blank material for forming the side wall part forming member 223) from being exposed at the upper end of the upper forming part, and the user can Even when the user ingests the contents in the container 501 by placing his/her mouth on the end surface of the blank material, it is possible to suppress the discomfort caused by the user's mouth touching the end surface of the blank material. Further, by forming the side wall upper end curl portion 236, liquid is less likely to come into contact with the portion of the side wall portion 203 that corresponds to the end surface of the blank material.

(Blank material)
The lid body 201 according to the seventh embodiment can be formed by processing a blank material. As the blank material, blank materials for forming the canopy part forming member 222 and the side wall part forming member 223 (as described above in the fifth embodiment and the sixth embodiment, the first blank material and the second blank material, respectively) are used. (referred to as blank material) can be used. At least one blank material selected from the group consisting of the first blank material and the second blank material may be formed in the same manner as the blank material described above, as described in the fifth embodiment and the like.

The first blank material for forming the canopy part forming member 222 may be the same as the first blank material 251 described above in the fifth embodiment and the sixth embodiment, and the canopy part 202 A sheet material formed in a shape that further includes a joining allowance 230 may be used. It is preferable that the canopy part forming member 222 forms a first part 231 corresponding to the canopy part 202 and a second part 232 which becomes the joining margin 230 by bending and forming a first blank material. That is, the second portion 232 is preferably formed by bending the first blank material downward at the peripheral edge of the first portion 231 . At this time, the first blank material may be shaped into a shape corresponding to the baffle part 288 and the height difference part 289, and may be provided with a structure corresponding to the through part 210.

The second blank material for forming the side wall portion forming member 223 may be the same as the second blank material 252 described above in the second embodiment, and a fan-shaped sheet material may be used. It's okay to be rejected. The edges of the second blank are joined to form an annular body. Then, by folding back the lower end portion of the annular body inward at a position corresponding to the lower end continuous portion 239, a lower first contact wall portion 237, a lower second contact wall portion 238, and a lower end continuous portion 239 are formed. At the same time, a lower forming part (lower wall 206) can be formed, and an upper forming part (upper wall 205) can also be formed. By forming the lower forming part and the upper forming part, the side wall forming member 223 is formed.

In manufacturing the lid body 201, it is preferable to join the canopy part forming member 222 in the above-described annular body formed from the second blank material. The upper end of the joint allowance 230 (second portion 232) of the canopy forming member 222 is located at the boundary position between the lower forming part and the upper forming part (the boundary position between the upper wall 205 and the lower wall 206) on the inner peripheral surface of the annular body. ), and the joining margin 230 is made to face the inner circumferential surface of the annular body. Further, as described above, by folding back the lower end portion of the annular body inward at a position corresponding to the lower end side continuous portion 239 of the annular body, the joint allowance 230 is covered from the lower end side. Then, the joining margin 230 is joined (adhered) to the lower forming part (the annular body forming the side wall forming member 223) so as to be sandwiched between the lower first contact wall part 237 and the lower second contact wall part 238. As a result, the side wall forming member 223 is formed and the lid 201 is obtained.

[7-2 Action and effect]
According to the lid 201 according to the seventh embodiment, it is possible to obtain a lid that can suppress leakage of liquid from the penetrating portion 210, similarly to the first to sixth embodiments.

Next, we will continue to explain examples of application of the lid.

[8 Application examples]
(Application example 1)
The lid 1 as shown in the first to fourth embodiments of the lid can be used for a container with a lid 500 as shown in FIGS. 17A and 17B (Application example 1). FIG. 17A is a perspective view showing an example in which the lid 1 according to the first embodiment is joined to an edge 503 forming the outer periphery of an opening 502 of a container 501 having an opening 502 formed at the upper end. It is. FIG. 17B is a cross-sectional view schematically showing the state of the vertical cross-section taken along line NN in FIG. 17A. The description of the lidded container 500 will be continued using FIGS. 17A and 17B.

(container with lid)
A case in which the lid 1 according to the first embodiment is attached to a container 501 will be described as an example of the container 500 with a lid. In the lidded container 500, a contact portion is formed by attaching the container 501 to the lid 1. In application example 1, a joint 651 formed by joining the lid 1 to the container 501 is formed as a contact part, and a region of the lid 1 that forms the joint 651 is a joint region R. The method of joining the lid 1 and the container 501 is not particularly limited, and a joining method such as a compression bonding method or a heat sealing method can be used as appropriate.

In the example shown in FIGS. 17A and 17B, the container 501 has a cylindrical side wall 504 whose diameter increases upward (tapering downward) and a bottom 507, and has a space inside. The container body 510 has a container body 510 forming a section 505, and an opening 502 that is opened at the upper end of the container body 510 (the upper end of the side wall 504). Although not shown, the opening 502 of the container 501 is formed in a circular shape. However, the container 501 shown here is an example, and the configuration of the container 501 is not limited. For example, the container 501 may have an opening 502 formed in a rectangular shape. The container 501 may be of any type as long as the opening 502 can be covered with the lid 1. Moreover, what is stored inside the container 501 (the space 505) is not particularly limited, and may be, for example, a liquid, a solid, or a combination thereof.

In the container shown in FIGS. 17A and 17B, the edge 503 of the opening 502 has a flange. The flange portion may be a curled portion 508 formed by winding the member forming the container body 510 outward as shown in FIGS. ) may be formed as

Further, the lid 1 may be combined with a container 501 having an opening 502.

(Application example 2)
The lid body 201 as shown in the fifth to seventh embodiments can be used for a container with a lid body 500 as shown in FIG. 26 (Application example 2). FIG. 26 is a cross-sectional view showing an example in which a lid 201 according to the fifth embodiment is fitted to an edge 503 forming the outer periphery of an opening 502 of a container 501 having an opening 502 formed at the upper end. It is a diagram. The description of the lidded container 500 according to Application Example 2 will be continued with reference to FIG. 26.

The lid 201 can be attached to the container 501 by fitting the lid 201 into the edge 503 forming the outer periphery of the opening 502 of the container 501 having the opening 502 formed at the upper end. In this case, the contact portion can be formed as a portion where the container 501 and the lid 201 are brought into contact (where the edge portion 503 and the canopy portion 202 are brought into contact). Note that the configuration of the container 501 may be the same as that of the container described above in Application Example 1, so detailed description thereof will be omitted.

Further, the lid 201 according to the fifth embodiment may be combined with a container 501 having an opening 502.

What is shown in [8 Application Example] above is not limited to the case where the lid 1 according to the first embodiment or the lid 201 according to the fifth embodiment is used. The second to fourth embodiments can also be used for a container 500 with a lid joined to a container 501, similarly to the lid 1 according to the first embodiment (not shown). Furthermore, the sixth to seventh embodiments can also be used in a container 500 with a lid joined to a container 501, similarly to the lid 201 according to the fifth embodiment (not shown).

As described above, the lid 1, 201 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 lid bodies 1 and 201 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 this specification, the present invention may adopt the following configurations [E1] to [E25].
[E1] Formed so as to be able to be joined to a container having an opening formed at an upper end and an edge forming an outer periphery of the opening, and corresponding to an area along the edge of the container to be joined to the container. and a lid area corresponding part configured from a portion inside the joint area corresponding part, and the lid area corresponding part has a baffle part inward from a peripheral edge of the lid area corresponding part. A lid body comprising: a height difference portion and a penetrating portion in at least a portion inside from an inner edge of the baffle portion.
[E2] The lid according to [E1], wherein the lid region corresponding portion has the through portion formed inside and/or inside the height difference portion.
[E3] The lid according to [E1] or [E2], wherein the penetration part and the baffle part are at different positions in the height direction.
[E4] The lid according to any one of [E1] to [E3] above, wherein the height difference portion is formed to surround the penetration portion.
[E5] The lid according to any one of [E1] to [E4] above, wherein a flat part is formed inside the height difference part.
[E6] The lid according to [E5], wherein the plane portion and the baffle portion are at different positions in the height direction.
[E7] The lid according to any one of [E1] to [E6], wherein the penetration portion and the baffle portion are at the same heightwise position.
[E8] The lid according to any one of [E1] to [E7] above, wherein an inclined portion is formed inside the height difference portion.
[E9] The lid according to any one of [E1] to [E8] above, wherein at least a portion of the wall portion in the height difference portion has a wavy shape.
[E10] The lid body according to any one of [E1] to [E9] above, wherein the height difference portion has a plurality of grooves, and the bottoms of the plurality of grooves are arranged concentrically. .
[E11] The lid according to any one of [E1] to [E10] above, wherein the height difference portion has a groove, and an uneven structure is formed in the groove.
[E12] In any one of [E1] to [E11] above, the height difference part has a groove part, and the width of the groove part is partially different in a plan view of the lid area corresponding part. Lid body as described.
[E13] The lid according to any one of [E1] to [E12] above, wherein the height difference part has a step part.
[E14] The lid according to [E13] above, wherein the stepped portion forms a groove.
[E15] The lid area corresponding part is provided with a weakened part that guides the dividing position in the lid area corresponding part, and the weakened part is formed in a plurality of the through parts and at least two of the through parts. The lid body according to any one of [E1] to [E14] above, having at least one continuous part formed between the lid bodies.
[E16] The lid body according to [E15] above, wherein the weakened portion has a plurality of through portions formed radially around the continuous portion.
[E17] The lid region corresponding portion includes a base portion having a small opening having an opening area smaller than the opening of the container, a small lid portion that opens and closes the small opening, and a base portion and the small opening portion. a hinge portion connecting the small lid portion to the small lid portion, the small lid portion is configured to be rotatable relative to the base portion about the hinge portion, and at least a portion of the penetrating portion is connected to the small lid portion. The lid body according to any one of [E1] to [E16], which is formed at a boundary position between an outer peripheral edge of the small opening and an opening edge of the small opening.
[E18] The lid according to [E17], wherein at least a portion of the penetrating portion is formed in the height difference portion.
[E19] The lid according to [E17] or [E18], wherein a knob is provided on the upper surface side of the small lid.
[E20] The lid according to [E19], wherein the knob has a tab member, and the tab member is joined to the upper surface side of the small lid.
[E21] The lid according to any one of [E1] to [E20] above, which is formed of a paper-based material.
[E22] A low-density part is formed in a portion from the boundary between the baffle part and the height difference part toward the height difference part, where the density of fibers constituting the paper-based material is lower than that of the baffle part. The lid described in [E21] above.
[E23] The lid according to any one of [E1] to [E22] above, wherein the obstructing portion and the height difference portion are continuously formed.
[E24] The container has the lid according to any one of [E1] to [E23] above, and the container has the opening formed at the upper end, and the lid is joined to the container. Container with lid.
[E25] A combination of a lid and a container, comprising the lid according to any one of [E1] to [E23] above, and the container having the opening formed at the upper end.

1 : Lid body 2 : Base part 3 : Small lid part 3A : Outer periphery 4 : Hinge part 5A : Joint area corresponding part 5B : Lid area corresponding part 5C : Outer area corresponding part 6 : Small opening part 6A : Opening edge 8 : Obstruction portion 8A: Inner end 9: Height difference portion 10: Penetrating portion 11: Plane portion 11A: Outer edge portion 12: Inlet 13: Low density portion 14: Side wall inner step portion 15: Inclined surface portion 16: Weakened portion 17: Continuous Part 18 : Curved surface part 19 : Half cut part 21 : Knob part 22 : Tab member 30 : Blank material 31 : Fiber sheet 31A : Fiber 50A : Joint area corresponding part 50B : Lid area corresponding part 72 : Exposed surface 73 : Opposing surface 74 : Peripheral edge 90 : Step part 90A : Wall part 91 : Groove part 91A : Outer wall 91B : Inner wall 91C : Bottom part 92 : First part 93 : Second part 94 : Thick part 95 : Width detail 96 : Base End 97 : Other end 98 : Bottom surface 99 : Top part 201 : Lid body 202 : Canopy part 203 : Side wall part 203A : Inner peripheral surface 203B : Outer peripheral surface 204 : Bent part 205 : Upper wall 206 : Lower wall 208 : Notch part 210 : Penetrating part 219 : Insertion port 222 : Canopy part forming member 223 : Side wall part forming member 224 : Recessed part 225 : Convex part 226 : Projecting part 226A : Inner surface 227 : Recessed part 228A : Inner end part 228B : Outer end part 230 : Joining 231 : First part 232 : Second part 233 : First contact wall part 234 : Second contact wall part 235 : Continuous part 236 : Side wall upper end curl part 237 : Lower first contact wall part 238 : Lower second part Contact wall portion 239: Lower end side continuous portion 250: Blank material 251: First blank material 252: Second blank material 253: Edge portion 272: Exposed surface 273: Opposing surface 274: Contact portion 274A: First contact Part 274B : Second contact part 288 : Obstruction part 288A : Inner end 289 : Height difference part 291 : Groove part 500 : Container with lid 501 : Container 502 : Opening part 503 : Edge part 504 : Side wall 505 : Space part 507 : Bottom portion 508: Curled portion 510: Container body 511: Outer peripheral surface portion 651: Joint portion CT: Center R: Joint area α: Angle

Claims (23)

formed to be able to be joined to a container having an opening formed at an upper end and an edge forming an outer periphery of the opening;
a joint area corresponding part corresponding to a region to be joined to the container along the edge of the container; and a lid area corresponding part comprising a part inside from the joint area corresponding part, the lid area The corresponding part has a baffle part formed as a part extending inward from the peripheral edge of the lid area corresponding part, and has a height difference part and a penetrating part at least partially inside from the inner edge of the baffle part. and has a
The joint region corresponding portions are formed at the same height in the same position from the peripheral edge to the location where the baffle portion is formed,
The height difference part has a groove part and a wall part,
The groove has an outer wall and an inner wall, a bottom of the groove is formed by a lower end of the outer wall and a lower end of the inner wall, and the bottom is formed at a position lower than the baffle part. The upper end of the inner wall portion is formed so that the position in the height direction is the same as the baffle portion, or is higher than a location where the bonding area corresponding portion is formed.
Lid body. In the lid region corresponding portion, the penetration portion is formed inside and/or inside the height difference portion.
The lid according to claim 1. The penetration part and the baffle part are at different positions in the height direction,
The lid according to claim 1. The height difference part is formed to surround the through part,
The lid according to claim 1. A plane part is formed inside the height difference part,
The lid according to claim 1. The plane part and the baffle part are at different positions in the height direction,
The lid body according to claim 5. The penetration part and the baffle part are at the same position in the height direction,
The lid according to claim 1. a sloped portion is formed inside the height difference portion;
The lid according to claim 1. At least a portion of the wall portion in the height difference portion has a wavy shape;
The lid according to claim 1. The height difference part has a plurality of groove parts,
The bottoms of the plurality of grooves are arranged concentrically,
The lid according to claim 1. The height difference part has a groove part,
an uneven structure is formed in the groove portion;
The lid according to claim 1. The height difference part has a groove part,
In a plan view of the lid region corresponding portion, the width of the groove portion is partially different;
The lid according to claim 1. The height difference part has a step part,
The lid according to claim 1. The step portion forms a groove portion.
The lid body according to claim 13. The lid area corresponding part is provided with a weakened part that guides the dividing position in the lid area corresponding part,
The weakened portion includes a plurality of the penetration portions and at least one continuous portion formed between at least two of the penetration portions.
The lid according to claim 1. The weakened portion forms a plurality of the through portions radially around the continuous portion,
The lid according to claim 15. The lid area corresponding portion includes a base portion having a small opening having an opening area smaller than the opening of the container, a small lid portion that opens and closes the small opening, and the base portion and the small lid portion. Equipped with a hinge part that connects the
The small lid part is configured to be rotatable with respect to the base part about the hinge part,
at least a portion of the penetrating portion is formed at a boundary position between the outer peripheral edge of the small lid portion and the opening edge of the small opening;
The lid according to claim 1. at least a portion of the penetrating portion is formed in the height difference portion;
The lid according to claim 17. Made of paper-based material,
The lid according to claim 1. A low-density part is formed in a portion from the boundary between the baffle part and the height difference part toward the height difference part, where the density of fibers constituting the paper-based material is lower than that of the baffle part.
The lid according to claim 19 . The baffle portion and the height difference portion are continuously formed;
The lid according to claim 1. The lid according to any one of claims 1 to 21 ;
the container having the opening formed at the top end;
the lid body is joined to the container;
Container with lid. The lid according to any one of claims 1 to 21 ;
the container having the opening formed in the top end;
Combination of lid and container.

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