JP7224702B1 - container with lid - Google Patents

Abstract

An object of the present invention is to provide a container with a lid whose drinking spout can be opened and closed easily and with good shape retention. A container with a lid includes a container having an opening formed at an upper end, and a lid attached to the container and covering the opening, and the container has an edge surrounding the opening. The lid has a joint along the edge that joins the container and the lid, and the lid has a small opening area smaller than the opening inside the part corresponding to the joint when viewed from above. It has a main body that forms an opening, a small lid that covers the small opening so that it can be opened and closed, and a hinge that rotatably connects the small lid to the main body. The parts having different widths include at least a thick part and a narrow width part narrower than the thick part, and when the small opening is covered with the small lid part, the center of the lid body in a plan view of the lid body. When assuming a half-line that intersects the thick portion starting from , at least one half-line intersects the small lid portion. [Selection diagram] Figure 1

Description

TECHNICAL FIELD The present invention relates to a container with a lid.

BACKGROUND ART It is widely practiced to store food and drink in a container and provide the food and drink with the lid closed. For example, in convenience stores, it is widely practiced to provide beverages such as coffee in the new forms described above. When the food and drink contained in the container (hereinafter also referred to as "contents") is a beverage such as coffee, the purchaser holds the container with the lid on. Take the container, tilt the container, and drink the contents. For this reason, it is common practice to form an opening (small opening), also called a spout, in the lid so that the contents flow out of the container when the container is tilted. there is However, simply forming a drinking spout is not necessarily hygienic because there is a risk of dust and the like entering the container through the spout. For this reason, the mouthpiece is not opened in the lid before use, and the mouthpiece is opened only when the user drinks the contents.

Examples of such lid bodies include those disclosed in Patent Document 1 and Patent Document 2 shown below. The lid disclosed in Patent Document 1 includes a side wall and a canopy portion, and the canopy portion is formed with a tab. This lid body is constructed so that when the user picks up the tab and pulls it up, a bell-shaped or gourd-shaped hole is opened to form a drinking mouth. In addition, the beverage cup lid disclosed in Patent Document 2 is provided with an opening (drinking mouth) on the top surface (canopy portion) and a convex portion on the small lid, and the convex portion of the small lid is replaced by the concave portion of the top surface portion. It is configured to keep the small lid open by fitting it to the .

International Publication No. 2016/069755 JP 2008-062952 A

However, the lids disclosed in Patent Literatures 1 and 2 described above have the operation of directly pinching the tab or small lid to form an opening for drinking, inserting the tab into the tab hole, or inserting the convex portion of the small lid into the concave portion. There is a problem that the fitting operation cannot be performed smoothly, and the operation of opening the drinking spout is very difficult to perform. In addition, when the tab or the small lid is picked to open the mouthpiece, an unintended force may be applied to the mouthpiece, causing deformation of the mouthpiece.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a container with a lid that can be easily opened and closed with good shape retention of the mouth of the lid. .

The gist of the present invention is the following (1) to ( 4 ).
(1) A container having an opening formed at its upper end, and a lid attached to the container and covering the opening,
the container has a rim surrounding the opening;
Having a joint for joining the container and the lid along the edge,
The lid includes a main body that forms a small opening having an opening area smaller than that of the opening inside a portion corresponding to the joint in plan view of the lid, and a portion corresponding to the joint. a small lid portion that covers the small opening so as to be able to open and close; and a hinge portion that rotatably connects the small lid portion to the body portion. death,
A connecting portion is provided for connecting the outer peripheral edge of the small opening and the small opening in a state before the small opening is formed,
The main body is made of a paper-based material,
The small opening is formed in a region outwardly deviating from the center of the lid in a plan view of the lid,
When the small opening is covered with the small lid, the end surface of the outer peripheral edge of the small lid can face the end surface of the small opening,
The joint portion has at least a thick portion and a narrower width narrower than the thick portion as portions having different widths,
The length of the thick portion in the longitudinal direction is longer than the length of the front edge of the joint,
In a state in which the small opening is covered with the small lid portion, when a semi-linear line starting from the center of the lid body and intersecting the thick portion is assumed in a plan view of the lid body, at least one of the A container with a lid in which a half line intersects the small lid.
(2) The joint portion has at least the thick portion as portions having different widths from each other, and the narrow width portion connected to two ends of the thick portion and having a narrower width than the thick portion.
The lidded container according to (1) above.
( 3 ) In a state where the small opening is covered with the small lid portion, the center of the hinge portion in a plan view of the lid body is the thick portion with the center of the lid body as the starting point of the half straight line. is formed at a position off a line passing through the center of the thick portion along the longitudinal direction of the
The lidded container according to (1) or (2) above.
( 4 ) A tab member is provided on the small lid portion of the lid body.
The lidded container according to (1) or (2) above.

According to the present invention, a state in which the thick portion is positioned near at least a part of the small lid portion and the small opening is easily formed, the strength of the portion near the small lid portion and the small opening is high, and the small lid It becomes relatively difficult for the strength of the portion distant from the opening and the small opening to increase. Therefore, even if force is applied to the small lid portion when the small lid portion is picked up and pulled up, the shape of the small opening portion can be easily stabilized by the wide portion. In addition, the force applied to the small lid portion can be easily released to the width details.

FIG. 1 is a plan view showing an example of the lidded container of the first embodiment. FIG. 2 is a cross-sectional view schematically showing the cross section of the container with a lid, showing the state of the vertical cross section taken along the line AA of FIG. FIG. 3 is a cross-sectional view showing one embodiment of the connecting portion. FIG. 4 is a plan view showing an example of the lidded container of the second embodiment. FIG. 5 is a plan view showing an example of the lidded container of the third embodiment. FIG. 6 is a plan view showing an example of the lidded container of the fourth embodiment.

Hereinafter, the lid according to the present invention will be described in detail based on the drawings. The lid according to the present invention will be described by taking as an example a lid used for a container (cup) for holding various beverages such as a coffee cup. It is not limited, and can be applied as a lid body of a container containing foodstuffs other than beverages. In addition, the lid according to the present invention can be applied to containers that can accommodate various articles other than food and drink, such as parts such as bolts and nuts, and articles other than those described above. Furthermore, 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, but the shape of the lid is limited to a circular shape when viewed from above. It 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, chamfered polygonal shapes, and the like.

Hereinafter, a first embodiment, a second embodiment, a third embodiment, and a fourth embodiment related to the present invention will be described in order with reference to the drawings. In the present specification and drawings, configurations having substantially the same functional configuration are denoted by the same reference numerals, thereby omitting redundant description.

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 and the like. Further, in the following description, directions such as front-rear, left-right, up-down, etc. and the direction of the horizontal plane are shown for convenience of explanation, but the contents of the present invention are not limited to these directions. In the examples of FIGS. 1 to 6, the Z-axis direction is the vertical direction (the +Z direction is the upper side, and the -Z direction is the lower side). The directions along the axis and the Y-axis are defined as the X-axis direction and the Y-axis direction, and the XY plane, which is a plane joined by the X-axis and the Y-axis, is a horizontal plane. The relative size ratios such as the sizes shown in FIGS. 1 to 6 are for the sake of convenience, and do not limit the actual size ratios.

[1 First embodiment]
[1-1 Configuration]
(container with lid)
A lidded container 10 according to the first embodiment includes a container 101 and a lid 11 attached to the container 101 . Further, the lidded container 10 has a joint portion 50 that joins the container 101 and the lid 11 . Further, in the first embodiment, the case where the separate tab member 16 is provided on the small lid portion 14 of the lid body 11 will be described as an example, but this is an example, and the small lid portion does not have a tab member. It does not exclude the case where it is not provided. Moreover, the tab member is not limited to the case where the tab member is provided in the small lid portion separately from the small lid portion, and the portion corresponding to the tab member may be formed integrally with the small lid portion. In addition, in the description of the first embodiment, the container 101 has a circular cross-section in plan view of the lidded container 10, but the shape of the container 101 is not limited to this. The cross section of the container 101 is not limited, and the shape of the container 101 may be rectangular, polygonal, or a combination of curved lines and straight lines.

(Lid body)
The lid body 11 is used by being joined to the container 101 along an edge portion 103 described later of the container 101 . In the example of FIG. 1, the shape of the outer periphery of the lid 11 is generally circular in plan view of the lid 11, but the shape of the outer periphery of the lid 11 is not limited to this, for example, the shape of the outer periphery of the lid 11 is rectangular or elliptical. and so on. The lid 11 is shaped to cover at least part of an opening 104 of the container 101, which will be described later. In the example of FIG. 1, the lid 11 covers the entire area of the opening 104 when the small opening 13 is closed by the small lid 14 (the area of the small opening 13 is mostly covered by the small lid 14). formed to cover. In the case of covering the entire opening 104, the opening 104 may be completely covered, or a small hole for releasing the air in the container to the outside, a slit or a notch having a predetermined function, or the like may be used. A case where a fine hole structure is formed in the body portion or the small lid portion of the lid 11 is included.

(Material of lid)
Although the material of the lid 11 is not particularly limited, it is preferably a paper-based material. As the paper-based material, a raw material sheet made of so-called paper or pulp-based fiber, etc., which is obtained by making a sheet by drawing a slurry of fiber raw material on a net, drying or press-drying, and making paper, is pulverized with a pulverizer. Manufactured by agglutinating plant fibers and other fibers such as so-called air-laid sheets obtained by piling up open fiber raw materials such as crushed pulp by air flow and fixing the fibers of the pile with a binder. In addition to the so-called papers that are used, chemical fiber paper, synthetic paper, waterproof paper, coated paper, alternative paper, parchment paper, wool paper, glass fiber paper, stone paper, ceramic paper, etc., and laminated sheets of these mentioned. In addition, the paper-based material may be made of pulp alone, or may include non-pulp natural fibers, synthetic fibers, recycled fibers, etc., but preferably contains 50% by mass or more of pulp. , more preferably 70% by mass or more, more preferably 80% by mass or more, and particularly preferably 100% by mass of pulp. The paper-based material can be a synthetic resin or natural resin film or non-woven fabric, a wood-based material such as wood foil, or a composite material with a material such as aluminum foil. The content of pulp as a whole is preferably 50% by mass or more, and particularly preferably 80% by mass or more. The higher the pulp content, the easier it is for the paper-based material to biodegrade, which is preferable.

It is preferable that the lid 11 is entirely made of the above-mentioned paper-based material, but this prohibits a part or all of it from being made of a material different from the paper-based material. not something to do. For example, the lid 11 may be formed by forming the main body portion and the small lid portion from a paper-based material, and forming the tab member 16 from a resin film material or the like.

The lid 11 includes a main body 12 having a small opening 13 and a small lid 14 covering the small opening 13 . Also, as shown in the example of FIG. In the lid body 11 , an opening forming portion 20 is formed by the small lid portion 14 and the small opening portion 13 .

(main body)
The body portion 12 has a portion forming a joint portion 50 to be described later, and is connected to the small lid portion 14 via the hinge portion 15 . In the example of FIG. 1 , before the small lid portion 14 is lifted to form the small opening portion 13 , the main body portion 12 is attached to the small lid portion 14 in addition to the hinge portion 15 and the small opening portion of the main body portion 12 . It is preferable that the connecting portion 17 connects the edge portion of the portion 13 and the edge portion of the small lid portion 14 . The structure of the connecting portion 17 is such that at a predetermined position along the longitudinal direction of the portion where the edge portion of the small opening portion 13 of the main body portion 12 and the edge portion of the small lid portion 14 face each other, the small opening portion 13 is locally formed. and the end edge of the small lid portion 14 are connected to each other. Note that the connecting portion 17 may have a perforated structure as shown in FIG. There may be. In this case, the half-cut portion 31 may be formed along the edge of the small opening 13 of the main body 12 along the entire edge of the small opening 13 (the portion forming the outer peripheral edge 73). and may be formed locally.

(Opening part)
As shown in FIG. 1 and the like, the opening forming portion 20 is defined as a portion where the small opening portion 13 opens and closes as the small lid portion 14 is displaced. The opening forming portion 20 is defined as the portion having the small opening 13 and the small lid portion 14 . The opening forming portion 20 is formed so that the small lid portion 14 closes the small opening portion 13 as shown in FIG. formed. The opening forming portion 20 is formed at a position shifted from the center CT of the lid body 11 to a predetermined position in an outward direction (outward direction) from the center CT.

The opening forming part 20 is configured so that when the lid 11 is attached to the container 101 and the small lid 14 is opened, the space 105 of the container 101 can be visually recognized through the small opening 13 .

(small opening)
The small opening 13 is formed so as to penetrate the surface 22 of the lid 11 facing the container 101 and the non-facing surface of the lid 11 facing the container 101 (the exposed surface 21 of the lid 11). The small opening 13 is formed inside a portion corresponding to the joint 50 in plan view of the lid 11 so as to have an opening area smaller than that of the opening 104 . The small opening 13 is for opening and forming an entrance/exit for contents (for example, beverages, food, and the like) in the space 105 of the container 101 in the lidded container 10 . When the small lid portion 14 is pulled up with respect to the main body portion 12, the small opening portion 13 is exposed.

(small lid)
A small lid portion 14 is provided on the lid body 11 . The small lid portion 14 covers the small opening portion 13 so as to be openable and closable. In the example of FIG. 1, the small lid portion 14 is formed so as to be displaceable to a raised state with respect to the main body portion 12, and the small opening portion 13 is formed when the small lid portion 14 is pulled up.

In the lid body 11 shown in the example of FIG. 1 , the small lid part 14 is provided inside (center CT side) of the part corresponding to the joint part 50 in plan view of the lid body 11 . In the example shown in FIG. 1, the small lid portion 14 is lifted in conjunction with the movement of the tab member 16 joined to the small lid portion 14 by the tab joint portion 18. Displace (rotate). The main body portion 12 and the small lid portion 14 are connected by a hinge portion 15 . As the small lid portion 14 is lifted using the hinge portion 15 as a support shaft, the small opening portion 13 is exposed. In the example of FIG. 1 , when the lid 11 is viewed from above, the main body 12 is a portion of the exposed surface 21 of the lid 11 excluding the small lid portion 14 .

The shape and structure of the small lid portion 14 are not particularly limited. 1, at least a part of the outer peripheral edge 73 of the small lid portion 14 extends along the portion corresponding to the joint portion 50 (the portion forming the joint portion 50). It is preferable to have a contour shape as shown. In the example of FIG. 1, the shape of the front edge portion 75 of the outer peripheral edge 73 of the small lid portion 14 is along the inner edge of the joint region R. As shown in FIG. Also, at this time, the shape of the front edge portion 75 tends to follow the inner edge of the edge portion 103 . Such a shape of the small lid portion 14 may be applied to the small lid portion 14 of the lid body 11 according to the first embodiment. In the following description of the lid body 11, unless otherwise specified, the description will continue with the case where the small lid portion 14 as shown in FIG. 1 is used as an example. In addition, in the example of the small lid portion 14 shown in FIG.

The outer peripheral edge 73 of the small lid portion 14 may be connected to the main body portion 12 by the connecting portion 17 as described above.

In the lid body 11 according to the second embodiment, even after the small opening 13 is exposed by raising the small lid 14, the small opening 13 can be covered with the small lid 14. . When the small lid portion 14 is raised, the small opening portion 13 is exposed. This state is called an open lid state. A state in which the small opening 13 is covered with the small lid 14 is called a closed state.

The lid body 11 can be closed even after it has been opened, and when the lid is closed, the main body is attached to the end face (peripheral end face) of the outer peripheral edge 73 of the small lid portion 14 . The end faces formed at the position of the small opening 13 of the portion 12 can face each other.

(hinge part)
As described above, the hinge portion 15 is formed on the lid body 11 , and the hinge portion 15 rotatably connects the small lid portion 14 to the main body portion 12 . The hinge portion 15 may have a perforated structure or a half-cut portion similar to the connecting portion 17 .

(tab member)
The tab member 16 has a knob portion 19 formed by a portion including the other end portion 16B as shown in the example of FIG.

In the example of FIG. 1, one end portion 16A of the tab member 16 is joined to the small lid portion 14, and a tab joint portion 18 is formed by this joining. The position of the portion of the small lid portion 14 corresponding to the tab joint portion 18 is not limited, but in the example of FIG. It is

(joint)
In the lidded container 10, a joint portion 50 is formed as a portion where the lid 11 and the container 101 are joined. The joint portion 50 has at least a thick portion 51 and a width detail 52 narrower than the thick portion as portions having different widths. The width of the joint portion 50 indicates the size of the joint portion 50 in a direction orthogonal to the longitudinal direction (the direction of arrow F) of the joint portion 50 and along the surface direction of the main body portion 12 in a plan view of the lid body 11 (see FIG. 1 , H1, H2 in FIGS. 3 to 6). A portion defined as a relatively thick portion of the joint portion is specified as the thick portion 51 (having a width of H1), and a portion excluding the thick portion 51 (a portion having a width equal to or less than the width of the thick portion 51) is specified. (width is H2)) is defined as the width detail 52 . A boundary position between the thick portion 51 and the width detail 52 is defined as being included in the thick portion 51 . Therefore, when the joint portion 50 gradually narrows from the wide width portion 51 toward the narrow width portion 52 , the portion where the width gradually narrows is included in the wide width portion 51 . The joint portion 50 is in a state in which the narrow width portion 52 is connected to two ends along the longitudinal direction (direction of arrow F) of the thick portion 51 . As a result, the force applied near the boundary between the thick portion 51 and the narrow portion 52 can be released to the narrow portion.

(Arrangement of thick part and small lid part)
In the lidded container 10, the arrangement of the wide width portion 51 and the small lid portion 14 satisfies Condition 1 below.

Condition 1: With the small opening covered with the small lid portion, when assuming a half line starting from the center of the lid and intersecting the thick portion in plan view of the lid, at least one half line is formed. , intersects the operculum.

In the example of FIG. 1 , at least the half straight line M1 that starts at the center of the lid and intersects the thick portion 51 passes through the presence area of the small lid portion 14 , that is, intersects the small lid portion 14 . The half-line M1 is a half-line that intersects at a position slightly displaced along the longitudinal direction F of the thick portion 51 from the center CL of the thick portion 51 .

(container)
The container 101 has a main body having a cylindrical side wall portion 107 and a bottom portion 106 whose diameter increases upward and a space portion 105 formed therein, and an upper end of the main body (upper end of the side wall portion 107). It has an open opening 104 . Although not shown, the opening 104 of the container 101 is surrounded by a rim 103, and the rim 103 is formed in a circular shape. However, the container 101 shown here is an example, and the configuration of the container 101 is not limited. For example, the container 101 may be formed with a rectangular edge 103 . The container 101 may be of any type as long as the opening 104 can be covered with the lid 11 . Moreover, what is housed inside the container 101 is not particularly limited, and examples thereof include liquid substances, solid substances, and combinations thereof.

In the container 101 shown in FIG. 2, the edge 103 has the curled portion 108 formed by outwardly winding the member forming the main body 102 of the container 101, but the container 101 is not limited to this. The end surface of the side wall portion 107 may be exposed at the edge portion 103 , or a flange portion extending outward from the opening portion 104 of the container 101 may be formed at the edge portion 103 .

[1-2 Manufacturing method]
The lidded container 10 can be manufactured by placing the lid 11 on the opening 104 of the container 101 and bonding the lid 11 and the container 101 to form the joint 50 . A method for joining the lid 11 and the container 101 is not particularly limited, and a joining method such as crimping or heat sealing can be appropriately used.

[1-3 Action and effect]
According to the lidded container 10 according to the first embodiment, the joint portion 50 has portions with different widths, and at least one of the half straight lines connecting the thick portion 51 and the center of the lid 11 is It intersects the small lid portion when viewed from above. As a result, a state in which the thick portion is positioned near at least a part of the small lid portion and the small opening is likely to be formed, the strength of the portion near the small lid portion and the small opening is high, and the small lid portion and the small opening are strong. It becomes relatively difficult for the strength of the part away from the part to become strong. Therefore, even if force is applied to the small lid portion when the small lid portion is picked up and pulled up, the shape of the small opening portion can be easily stabilized by the wide portion. In addition, the force applied to the small lid portion can be easily released to the width details.

[2 Second embodiment]
In the description of the first embodiment, the lidded container was provided with the tab member 16 . The tab member 16 is not limited to that described in the first embodiment. As shown in FIG. 4, in the lidded container according to the first embodiment, when the tab member 16 pulls up the small lid portion 14, the tab member 16 is detachably fixed. A portion 23 may be provided. Hereinafter, this embodiment will be referred to as a second embodiment. FIG. 4 is a plan view schematically showing an example of a lid used in the lidded container according to the second embodiment.

(fixed structure forming part)
The fixing structure forming part 23 is not particularly limited as long as it has a structure capable of detachably fixing the position of the tab member 16 in a state in which the tab member 16 is pulled up. For example, in the example of FIG. 4 , the fixed structure forming portion 23 is formed of a claw portion 24 and a receiving portion 25 . The claw portion 24 is a portion that protrudes downward by bending the knob portion. Further, the receiving portion 25 is formed in a slit shape in the main body portion 12 . The receiving portion 25 is formed at a position facing the claw portion 24 when the small lid portion 14 is pulled up and the tab member 16 is positioned on the main body portion 12 .

(Action and effect)
According to the lidded container 10 according to the second embodiment, since the fixed structure forming portion 23 is provided, the small lid portion 14 can be pulled up to maintain the state in which the small opening portion 13 is formed. .

[3 Third Embodiment]
In the lidded container of the first embodiment, in addition to condition 1 shown in the first embodiment, as shown in FIG. 2 may be satisfied. Hereinafter, this embodiment will be referred to as the third embodiment. FIG. 4 is a plan view schematically showing an example of a lid used in the lidded container according to the second embodiment.

Regarding the arrangement of the wide portion 51 and the small lid portion 14, Condition 2 is as follows.

Condition 2: With the small opening covered with the small lid portion, in plan view of the lid, the center of the hinge portion is along the longitudinal direction of the thick portion starting from the center of the lid on the half straight line. It is formed at a position off the line passing through the center of the widened portion.

In the example shown in FIG. 5, in plan view of the lid 11, the center HP of the hinge portion is the center of the thick portion 51 extending along the longitudinal direction of the thick portion 51 from the center CT of the lid on the semi-linear line. It is formed at a position off a line (half line MCL) passing through the center CL. The center HP of the hinge portion 15 indicates the intermediate position between the two ends 15A and 15B of the hinge portion 15. As shown in FIG.

(Action and effect)
According to the lidded container 10 according to the third embodiment, the center CT of the hinge portion 15 is deviated from the half line MCL, so that the center CL of the thick portion 51 with respect to the one end portion 15A of the hinge portion 15 , and the distance between the center CL of the thick portion 51 and the other end portion 15B. For example, the end portion 15B can be positioned closer to the center CL of the thick portion 51, and the end portion 15A can be positioned farther from the center CL. In this case, when the small lid portion 14 is pulled up, the shape of the end portion 15A is more likely to change than that of the end portion 15B. , the small lid portion 14 can be partially and gradually lifted without being lifted all at once.

[4 Fourth Embodiment]
In the lidded container of the first embodiment, as shown in FIG. 6, the joint portion 50 may have a thick portion 51 and a narrow width portion 52 at a plurality of locations. This embodiment is called the fourth embodiment. FIG. 6 is a plan view schematically showing an example of the lid used in the lidded container according to the fourth embodiment.

The lidded container 10 according to the present invention is not limited to those specifically shown in the above embodiments. That is, the foregoing is merely illustrative of the present invention and is not intended to be limiting. Therefore, modifications may be made as appropriate without departing from the gist of the present invention. Further, the above embodiments may be applied by appropriately combining other embodiments.

The present invention includes the technical ideas shown below.
(1) A container having an opening formed at its upper end, and a lid attached to the container and covering the opening,
the container has a rim surrounding the opening;
Having a joint for joining the container and the lid along the edge,
The lid body includes a main body part having a small opening having an opening area smaller than that of the opening inside a portion corresponding to the joint part in a plan view of the lid body, and a main body part that can open and close the small opening. and a hinge portion that rotatably connects the small lid portion to the main body portion,
The joint portion has at least a thick portion and a width narrower than the thick portion as portions having different widths,
In a state in which the small opening is covered with the small lid portion, when a semi-linear line starting from the center of the lid body and intersecting the thick portion is assumed in a plan view of the lid body, at least one of the A half line intersects the lid portion,
A container with a lid.
(2) The joint portion has at least the thick portion as portions having different widths from each other, and the narrow width portion connected to two ends of the thick portion and having a narrower width than the thick portion.
The lidded container according to (1) above.
(3) the main body of the lid is formed of a paper-based material;
The lidded container according to (1) or (2) above.
(4) In a state where the small opening is covered with the small lid portion, the center of the hinge portion in a plan view of the lid body is the thick portion with the center of the lid body as a starting point of the half straight line. is formed at a position off a line passing through the center of the thick portion along the longitudinal direction of the
The lidded container according to any one of (1) to (3) above.
(5) a tab member is provided on the small lid portion of the lid body;
The lidded container according to any one of (1) to (4) above.

10: container with lid 11: lid 12: main body 13: small opening 14: small lid 14a: one end 15: hinge 15A: end 15B: end 16: tab member 17: connecting portion 18: Tab joint portion 19 : Knob portion 20 : Opening forming portion 21 : Exposed surface 22 : Opposing surface 23 : Fixed structure forming portion 24 : Claw portion 25 : Receiving portion 50 : Joint portion 51 : Thick portion 52 : Width details 73 : Outside Peripheral edge 75 : Front edge 76 : Side edge 101 : Container 102 : Main body 103 : Edge 104 : Opening 105 : Space 106 : Bottom 107 : Side wall 108 : Curl CL : Center CT : Center CT : Center HP : Center M1 : Half line MCL : Half line R : Joining area

Claims (4)

A container having an opening formed at an upper end, and a lid attached to the container and covering the opening,
the container has a rim surrounding the opening;
Having a joint for joining the container and the lid along the edge,
The lid includes a main body that forms a small opening having an opening area smaller than that of the opening inside a portion corresponding to the joint in plan view of the lid, and a portion corresponding to the joint. a small lid portion that covers the small opening so as to be able to open and close; and a hinge portion that rotatably connects the small lid portion to the body portion. death,
A connecting portion is provided for connecting the outer peripheral edge of the small opening and the small opening in a state before the small opening is formed,
The main body is formed of a paper-based material,
The small opening is formed in a region outwardly deviating from the center of the lid in a plan view of the lid,
When the small opening is covered with the small lid, the end surface of the outer peripheral edge of the small lid can face the end surface of the small opening,
The joint portion has at least a thick portion and a width narrower than the thick portion as portions having different widths,
The length of the thick portion in the longitudinal direction is longer than the length of the front edge portion of the small lid portion,
In a state in which the small opening is covered with the small lid portion, when a semi-linear line starting from the center of the lid body and intersecting the thick portion is assumed in a plan view of the lid body, at least one of the A half line intersects the lid portion,
A container with a lid. The joint portion has at least the thick portion as portions having different widths from each other, and the narrow width portion connected to two ends of the thick portion and having a narrower width than the thick portion.
The lidded container according to claim 1 . In a state where the small opening is covered with the small lid portion, the center of the hinge portion in a plan view of the lid body is the longitudinal direction of the thick portion with the center of the lid body as a starting point of the half straight line. formed at a position off a line passing through the center of the thick portion along
The lidded container according to claim 1 or 2 . A tab member is provided on the small lid portion of the lid body,
The lidded container according to claim 1 or 2 .

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