JP7256571B1 - Lids, containers with lids, and combinations of lids and containers - Google Patents

Abstract

[PROBLEMS] To provide a lid body capable of suppressing accidental ingestion of solid matter such as ice or a beverage when ingesting the beverage after the addition, a container with the lid body, and the lid and the container. provide a combination of A lid body is formed to be connectable to a container having an opening formed at the upper end and an edge forming the outer periphery of the opening. A base portion having a corresponding joining region corresponding portion and a small opening having an opening area smaller than that of the opening of the container, a small lid portion for opening and closing the small opening, and a hinge portion connecting the base portion and the small lid portion. The small lid portion is configured to be rotatable with respect to the base portion with the hinge portion as an axis, and has a margin portion defined as a portion that satisfies the following conditions. Condition 1: In plan view, the margin portion is a portion formed inside from the inner edge of the joint area corresponding portion of the base portion and outside from the opening edge of the small opening, and a line segment connecting the margin portion and the hinge portion is formed. If assumed, a line segment passes through said aperture edge of the small aperture. [Selection drawing] Fig. 1

Description

The present invention relates to lids, containers with lids, and combinations of lids and containers.

It is widely practiced to store foods and drinks (hereinafter also referred to as "contents") in a container with an opening at the top and attach a lid to provide the container in a closed state. there is

In stores such as retail stores (e.g., convenience stores, etc.) and restaurants (e.g., fast food, etc.), as a form of providing contents to customers from clerks, contents are stored in containers and lids are placed at individual stores. Provisions have emerged that carry out the step of attachment. For example, as a form of provision, when the content is a beverage such as coffee or a carbonated drink, there is a form in which the drinker himself/herself pours the beverage into the container and attaches the lid. In addition, there is a mode in which the clerk pours the beverage and attaches the lid according to the order of the drinker.

As a method for attaching a lid to a container, a method such as hot pressing is known to bond the lid to the edge forming the outer periphery of the opening at the upper end of the container. When the beverage is to be the content, the lid is formed with a small opening serving as a drinking mouth, for example, and the small opening is covered with the lid when not in use. In a container with a lid fitted with such a lid, when the drinker drinks the beverage in the container from the mouth and then adds the beverage to the container (additional pouring), the beverage is accurately poured into the mouth. Difficult to pour. In particular, when adding solids such as ice to the container in addition to beverages, it is difficult to accurately accommodate the ice in the container. Regarding this, as shown in Patent Document 1, a structure in which the lid is peeled off (removed) from the edge of the container is conceivable.

JP 2014-84128 A

As in the technique described in Patent Document 1, when the lid is removed from the edge of the container, the container holds solids such as ice and a beverage, and the mouth is placed on the edge of the upper end of the container to open the container. There is a possibility that the beverage may be ingested from the edge of the cup, and there is a risk of accidentally ingesting solid objects such as ice. Such risks can be particularly serious when children, especially infants, consume the beverage from the edge of the container.

The present invention has been made in view of such problems, and it is possible to add solids such as ice and beverages to the container, and when the beverage is ingested after adding the beverage and the solids. To provide a lid body, a container with a lid body, and a combination of the lid body and the container, capable of suppressing accidental ingestion of solids in a container.

The gist of the present invention is the following inventions (1) to (20).

(1) formed so as to be connectable to a container having an opening formed at the upper end and an edge forming the outer circumference of the opening;
a base portion having a joining area corresponding portion corresponding to an area joined to the container along the edge of the container and a small opening having a smaller opening area than the opening of the container; and a front edge portion. and a base end portion for opening and closing the small opening; and a hinge portion for connecting the base portion and the small lid portion,
The small lid portion is configured to be rotatable with respect to the base portion around the hinge portion,
In a plan view of the base portion, the base portion has an eaves portion inside from the inner edge of the joint area corresponding portion and outside from the opening edge of the small opening,
When the width of the small lid portion is defined as the length along the hinge portion of the length of the small lid portion, the width of the small lid portion is a predetermined distance from the front edge toward the base end. increasing from the position toward the proximal end,
Made of paper-based material,
lid.
(2) The eaves portion is a margin portion defined as a portion that satisfies the following conditions 1 and 2,
The lid according to (1) above.
Condition 1: In a plan view of the base portion, the margin portion is a portion of the base portion formed inside from the inner edge of the joining area corresponding portion and outside from the opening edge of the small opening.
Condition 2: Assuming a line segment connecting the margin portion and the hinge portion in plan view of the base portion, the line segment passes through the opening edge of the small opening.
(3) In a plan view of the base portion, the area of the margin portion is smaller than the area of the small opening.
The lid according to (2) above.
(4) The lid according to (2) above, wherein the margin portion is formed such that the inner edge of the margin portion and the outer edge of the margin portion are non-concentric.
(5) The margin portion has an inclined portion that slopes downward from the outer edge of the margin portion toward the inner edge of the margin portion.
The lid according to (2) above.
(6) A knob portion is provided on the upper surface side of the small lid portion,
The lid according to (1) above.
(7) the knob has a tab member;
The tab member is joined to the upper surface side of the small lid portion,
The lid according to (6) above.
(8) When the small lid closes the small opening, a part of the tab member intersects the opening edge of the small opening in a plan view of the base.
The lid according to (7) above.
(9) having a holding structure forming portion that holds the small lid portion in a state in which the small lid portion is rotated with respect to the base portion about the hinge portion to open the small opening;
A claw portion is provided on the knob portion,
The base portion is provided with a receiving portion at a position in contact with the claw portion,
wherein the claw portion and the receiving portion form the holding structure forming portion;
The lid according to (6) above.
(10) forming an extending portion on the outer peripheral edge of the base portion;
The lid according to (1) above.
(11) having a holding structure forming portion that holds the small lid portion in a state where the small opening portion is opened by rotating the small lid portion with respect to the base portion about the hinge portion;
A knob portion is provided on the upper surface side of the small lid portion,
A claw portion is provided on the knob portion,
wherein the extending portion and the claw portion form the holding structure forming portion;
The lid according to (10) above.
(12) The hinge portion is formed between the extension portion and the tip of the small lid portion.
The lid according to (10) or (11) above.
(13) A depressed portion is formed in a portion inside the bonding area corresponding portion.
The lid according to (1) above.
(14) A projecting portion is formed on the outer peripheral edge of the small lid portion,
The lid according to (1) above, wherein the opening edge of the small opening is formed with a recessed portion corresponding to the projecting portion.
(15) A recessed portion is formed on the outer peripheral edge of the small lid portion,
A convex portion corresponding to the recessed portion is formed on the opening edge of the small opening,
The lid according to (1) above.
(16) A connection structure is formed to connect the outer peripheral edge of the small lid portion and the opening edge of the small opening,
The connection structure is a fragile portion that is more fragile than the small lid portion,
When the small lid rotates about the hinge with respect to the base, the fragile portion is destroyed.
The lid according to (1) above.
(17) The fragile portion has a combination structure of connecting portions and cuts and/or a half-cut structure,
The lid according to claim 16.
(18) The shape of the opening edge of the small opening is curved at least from a position corresponding to the predetermined position of the small lid to a position corresponding to the base end.
The lid according to (1) above.
(19) The lid according to (1) above;
the container having the opening formed at the upper end and the rim forming the outer circumference of the opening;
The lid body is joined to the container,
A container with a lid.
(20) The lid according to (1) above;
the container having the opening formed at the upper end and the rim forming the outer periphery of the opening;
Combination of lid and container.

According to the present invention, solids such as ice and beverages can be added to the container, and accidental ingestion of solids can be suppressed when the beverage is taken after adding the beverage and the solids. Lids, containers with lids, and combinations of lids and containers are provided.

FIG. 1A is a plan view showing an example of a lid according to the first embodiment; FIG. FIG. 1B is a cross-sectional view schematically showing the state of the vertical cross section taken along line AA of FIG. 1A. FIG. 2 is a plan view showing one example of the lid according to the first embodiment. FIG. 3A is a perspective view showing an example of a lidded container. FIG. 3B is a cross-sectional view schematically showing the state of the vertical cross section taken along line BB of FIG. 3A. FIG. 4 is a plan view showing an example of the lid according to Modification 1 of the first embodiment. FIG. 5 is a plan view showing one example of the lid according to the second embodiment. FIG. 6 is a plan view showing an example of the lid according to Modification 2 of the second embodiment. FIG. 7 is a plan view showing an example of the lid according to Modification 2 of the second embodiment. FIG. 8A is a cross-sectional view schematically showing the state of the vertical cross-section taken along line CC of FIG. FIG. 8B is a cross-sectional view schematically showing an example in which a holding structure is formed on the lid. 9A is a plan view showing an example of the lid according to the first embodiment; FIG. 9B is a plan view showing an example of the lid according to Modification 6 of the first embodiment; FIG. FIG. 10 is a plan view showing an example of the lid according to Modification 3 of the first embodiment. FIG. 11 is a plan view showing an example of the lid according to Modification 1 of the second embodiment. FIG. 12 is a plan view showing an example of the lid according to Modification 1 of the second embodiment. FIG. 13 is a plan view showing an example of the lid according to Modification 2 of the first embodiment. FIG. 14 is a plan view showing one example of the lid according to the third embodiment. 15A is a plan view showing an example of a lid according to Modification 4 of the first embodiment; FIG. FIG. 15B is a cross-sectional view for schematically explaining the state of the longitudinal cross-section taken along line DD of FIG. 15A. 16A and 16B are plan views showing an example of the lid according to Modification 5 of the first embodiment. FIG. 17 is a plan view schematically showing an enlarged state of a region XS surrounded by a dashed line in FIG. 1. FIG. FIG. 18 is a plan view schematically showing an example of a boundary between the outer peripheral edge of the small lid and the opening edge of the small opening in the lid according to the first embodiment. 19A and 19B are plan views showing an example of the lid according to Modification 7 of the first 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 an application example related to the present invention will be sequentially described 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 19, the Z-axis direction is the vertical direction (+Z direction on the top side, -Z direction on the bottom side), and the X-axis direction is the front-back direction (+X direction on the rear side, -X direction on the front side). , X-axis direction and Y-axis direction are defined on a plane normal to the Z-axis direction and perpendicular to each other. It is assumed that the XY plane is a horizontal plane, and the explanation is based on these. The relative size ratios such as the sizes shown in FIGS. 1 to 19 are described for convenience, and do not limit the actual size ratios unless otherwise specified.

[1 First Embodiment]
[1-1 Configuration]
As will be described later with reference to FIGS. 3A and 3B, the lid 1 according to the first embodiment includes an opening 102 formed at the upper end and an edge serving as the upper edge forming the outer circumference of the opening 102. 103 is formed so as to be able to be joined to a container having . 3A and 3B are a perspective view and a cross-sectional view showing an example of a lidded container 150 in which the lid 1 shown in FIGS. 1A, 1B and 2 is joined to the container 101. FIG. The lid 1 can be used by being joined along the edge 103 . In the lid 1, a region joined to the edge portion 103 in a plan view of the lid 1 is called a joint region R. As shown in FIG. FIG. 1A is a plan view showing one embodiment of the lid 1. FIG. FIG. 1B is a cross-sectional view schematically showing a vertical cross section taken along line AA of FIG. 1A. FIG. 2 is a diagram showing an example of the area of the margin portion 10 and the area of the small opening 6, which will be described later. As the container 101, one having flexibility at the edge 103 of the opening 102 is more preferably used. However, these do not prohibit the container 101 from being a container such as a metal container that has little or almost no flexibility.

In the example of FIGS. 1A and 1B, the joint region R corresponds to a region formed in a generally annular shape along the opening 102 of the container 101 in a shape corresponding to the opening 102 . If the joint region R between the lid 1 and the container 101 is not continuously joined, the joint region corresponding portion 5 also includes the portion sandwiched between the adjacent joint regions R and facing the edge 103 . shall be

(Material of lid)
Although the material of the lid 1 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.

In addition, it is preferable that the lid body 1 is entirely formed of the paper-based material described above. However, this does not prohibit that a part or the whole is formed of a material different from the paper-based material. For example, the lid body 1 may be formed of a laminate of a paper-based material and a resin film material only for the base portion 2 described later. In this case, the lid 1 can be secured to the container by appropriately using a sealing method such as a pressing method, a heat sealing method, or an ultrasonic welding method with the surface of the lid 1 on which the film material is arranged facing the container 101 side. Bonding to 101 becomes easier. In consideration of these points, the lid 1 is also preferably used for a laminate containing a paper-based material. A laminate containing a paper-based material may also be used for the small lid portion 3 .

The lid 1 has a base portion 2, a small lid portion 3, and a hinge portion 4, as shown in FIGS. 1A and 1B.

(base part)
The base portion 2 is defined as a portion having a bonding area corresponding portion 5 and forming a small opening 6 . The base portion 2 can be a portion that defines a reference for displacement of the small lid portion 3, which will be described later. In the example of FIG. 1A, the base portion 2 and the small lid portion 3 form an exposed surface 72 of the lid 1 when viewed from above.

(joint area corresponding part)
The joining region corresponding portion 5 is a portion of the lid body 1 corresponding to the joining region R (the region facing the edge 103 of the container 101 and the region joined to the container 101). The joining region corresponding portion 5 is a portion of the lid 1 that forms a joining portion 151 between the lid 1 and the container 101 in the lid-equipped container 150 . Specifically, in a plan view of the lid 1 (in the example of FIG. 1A, when the Z-axis direction (vertical direction) is taken as the line of sight), the portion of the base portion 2 that forms the bonding region R is the bonding region corresponding portion. 5. The joining region corresponding portion 5 is normally formed in an annular shape as shown in FIG. 1A. In particular, as shown in FIGS. 3A and 3B, when the edge portion 103 of the container 101 is formed in a generally annular shape, the joint region R becomes circular, and the portion 5 corresponding to the joint region also has a shape similar to that of the lid 1. When viewed from above, it has a generally annular shape. The outer edge of the joint region corresponding portion 5 is determined according to the position of the outer edge of the joint region R. As shown in FIG. The outer edge of the joint region corresponding portion 5 may be located at the outer peripheral edge 2A of the base portion 2, or may be located inside the outer peripheral edge 2A of the base portion 2 as shown in the example of FIG. 1A.

(small opening)
The small opening 6 is formed so as to pass through the facing surface 73 of the lid 1 with respect to the container 101 and the non-facing surface of the lid 1 with respect to the container 101 (the exposed surface 72 of the lid 1). The small opening 6 is formed inside a portion corresponding to the joint region corresponding portion 5 in plan view of the lid 1 so that the opening area is smaller than that of the opening 102 of the container 101 . The small opening 6 serves as an opening for the contents (for example, beverages, food, etc.) in the space 105 of the container 101 when the lid 1 is joined to the container 101 . The small opening portion 6 forms an opening forming portion 20 in combination with the small lid portion 3 to be described later.

(Opening part)
As shown in FIG. 1A and the like, the opening forming portion 20 is defined as a portion having the small opening portion 6 and the small lid portion 3 . In the opening forming portion 20, the small opening portion 6 opens and closes as the small lid portion 3 is displaced. The opening forming part 20 is formed so that the small lid part 3 closes the small opening part 6 as shown in FIG. 1A and the small opening part 6 is opened by displacing the small lid part 3 formed. When the small lid portion 3 is rotated so as to lift the small lid portion 3 with the base portion 2 as a reference, the small opening portion 6 is exposed and becomes an exposed opening. That is, the opening forming part 20 is configured such that when the lid 1 is attached to the container 101 and the lid 1 is pulled up, the space 105 of the container 101 can be seen through the small opening 6 and the lid. 3 are combined.

In the state where the small opening 6 is exposed, it can be used as a supply port for additional liquids such as beverages or solids such as ice, as will be described later. Further, when a liquid such as a beverage exists inside the container 101 (the space 105), the small opening 6 may be used as a mouth for drinking or pouring out the beverage.

(small lid)
A small lid portion 3 is provided on the lid body 1 . The small lid portion 3 is formed so as to be able to cover the small opening portion 6 so as to be openable and closable. In the example of FIG. 1A, as also shown in FIG. 3B, the small lid portion 3 is formed so as to be displaceable to a raised state with respect to the base portion 2. When the small lid portion 3 is pulled up, the small opening portion 6 is formed (opened). In the example shown in FIG. 1A, when the small opening 6 is closed by the small lid portion 3, the outer peripheral contour shape of the small lid portion 3 conforms to the shape of the opening edge 6A of the small opening portion 6. A shape can be defined. In this case, the end surface of the outer peripheral edge 3A of the small lid portion 3 can be easily brought into contact with the end surface of the opening edge 6A of the small opening portion 6 with the small opening portion 6 closed by the small lid portion 3 .

In the lid body 1 shown in the example of FIG. 1A, the small lid part 3 is provided inside (center CT side) of the joining area corresponding part 5 in plan view of the lid body 1 . The small lid portion 3 is displaced (rotated) so that the small lid portion 3 is lifted. The small lid portion 3 is connected to the base portion 2 by a hinge portion 4. - 特許庁As the small lid portion 3 is lifted using the hinge portion 4 as a support shaft, the small opening portion 6 is exposed.

The shape and structure of the small lid portion 3 are not particularly limited as long as the shape and structure form a margin portion 10, which will be described later. In the case of the example of FIG. 1A, the shape of the front end edge portion 75 of the outer peripheral edge 3A of the small lid portion 3 is located inside the joint region R, and the shape of the small lid portion 75 toward the base end portion 74 from the front end edge portion 75 It is formed so that the width W of the portion 3 is widened. The width W of the small lid is specified as follows. That is, assuming that a straight line DL passing through the position SB1 and extending along the direction in which the hinge portion 4 extends is assumed as the predetermined position SB1 of the outer peripheral edge of the small lid portion, the position where the straight line DL intersects the outer peripheral edge of the small lid portion (however, the position A position different from SB1) (corresponding position SB2) is determined. Then, the distance between the position SB1 and the position SB2 is determined, and this distance is defined as the width W.

The lid 1 according to the first embodiment is not limited to the case where the center CT of the lid 1 is positioned in the small lid portion 3 as shown in FIG. The portion 3 may be configured not to include the center CT of the lid 1 .

In the lid body 1, when the small lid portion 3 is raised, the small opening portion 6 is exposed as described above. This state is called an open lid state. A state in which the small opening 6 is covered with the small lid 3 is called a closed state.

In the lid body 1, even after the lid has been opened (after the small opening 6 is exposed by raising the small lid 3), the lid can be closed again. In the lid state, the end face of the opening edge 6A of the small opening 6 of the base portion 2 can face the end face of the outer peripheral edge 3A of the small lid portion 3 (peripheral end face).

(hinge part)
As described above, the lid 1 has the hinge portion 4 . The hinge portion 4 is generally composed of a portion corresponding to a line segment connecting two base end portions 74 along the outer peripheral edge 3A of the small lid portion 3. handle. The hinge portion 4 is a portion that serves as a rotation shaft when the small lid portion 3 rotates. However, when the small lid portion 3 rotates, not only when the small lid portion 3 rises from the base portion 2 at a certain angle at the position of the hinge portion 4, but also when the small lid portion 3 rotates from the hinge portion 4 as shown in FIG. A case where the small lid portion 3 rises while gradually curving toward the front edge portion 75 of the small lid portion 3 is included.

The base portion 2 is connected to the small lid portion 3 at least at a hinge portion 4 . The structure of the hinge portion 4 is not particularly limited as long as it is a portion defined as a boundary between the base portion 2 and the small lid portion 3 . The hinge portion 4 may be a perforated structure or a half-cut portion, similar to the connection structure 17 to be described later.

(Connection structure between base and small lid)
In the lid 1, a structure (connection structure 17) may be formed in which the opening edge 6A of the small opening 6 of the base portion 2 and the outer peripheral edge 3A of the small lid portion 3 are connected. The connection structure 17 is preferably configured as a weakened portion that is weaker than the small lid portion 3 . Since the connection structure 17 is a weakened portion, the weakened portion can be destroyed when the small lid portion rotates about the hinge portion with respect to the base portion. That is, the small lid portion 3 is raised with respect to the base portion 2 while being separated from the base portion 2 generally along the connecting structure 17 .

In the example of FIG. 1, the structure of the connection structure 17 is, as shown in FIG. 17, a combined structure of a continuous portion 18A and a cut portion 18B. FIG. 17 is an enlarged flat circle diagram of the region XS surrounded by the dashed-dotted line in FIG. 1, and schematically shows an example of the connection structure 17. As shown in FIG. In the combination structure, for example, the combination structure of the continuous portions 18A and the cut portions 18B are alternately arranged along the longitudinal direction of the portion where the end surface of the opening edge 6A of the small opening 6 and the end surface of the outer peripheral edge 3A of the small lid portion 3 face each other. structure (so-called perforation structure). Moreover, the connection structure 17 is not limited to a perforation structure, and may be a half-cut portion 16 as shown in FIG. 18, for example. The half-cut portion 16 is specified as a portion cut halfway in the thickness direction of the lid 1, as shown in FIG. The half-cut portion 16 is not limited to a portion cut to half the thickness of the lid 1 in the thickness direction of the lid 1 . The half-cut portion 16 has a structure in which the lid 1 is not penetrated and is cut by more than half the thickness of the lid 1, or is cut in the thickness direction of the lid 1 to an extent less than half the thickness of the lid 1. Contains notched structures.

In addition, when the connection structure 17 has the continuous portion 18A and the cut portion 18B, the continuous portion 18A may have a structure corresponding to the half-cut portion 16 .

(eaves part)
The lid 1 has a canopy. The eaves portion is formed as part of the base portion 2 . The eaves portion is formed as a portion of the base portion 2 formed inside from the inner edge of the joint region corresponding portion 5 and outside from the opening edge 6</b>A of the small opening portion 6 in the plan view of the base portion 2 . By forming the eaves on the lid 1, when the small opening 6 is in an open state (lid open state), the small opening 6 is used as a mouth for drinking, and solid matter is prevented when ingesting a beverage or the like. collides with the eaves, and accidental ingestion of solids is suppressed. A margin portion 10 is formed as an eaves portion of the lid body 1 in the example shown in FIG. 1 and the like. In the following description, the case where the eaves portion is the margin portion 10 will be described as an example.

(Margin part)
The lid 1 has a margin portion 10 as shown in FIGS. 1A, 1B, 2, and the like. The margin portion 10 is defined as a portion that satisfies Condition 1 and Condition 2 below.

Condition 1 In a plan view of the base portion 2 , the margin portion 10 is a portion of the base portion 2 formed inside from the inner edge of the joint region corresponding portion 5 .

Condition 2 Assuming a line segment connecting the margin portion 10 and the hinge portion 4 in plan view of the base portion 2 , the line segment passes through the opening edge 6</b>A of the small opening portion 6 .

The plan view of the base portion 2 indicates the case where the base portion 2 is viewed with the line of sight extending from the +Z side to the −Z side along the Z-axis direction in FIGS. 1A and 1B.

Regarding the condition 1, the margin portion 10 is a portion formed on the base portion 2 and thus is a portion separated from the small lid portion 3 . Regarding Condition 2, for example, as shown in FIG. It passes through the opening edge 6A. The margin portion 10 is a portion outside the position of the opening edge 6A when viewed from the position of the hinge portion 4. As shown in FIG. Therefore, in the example of FIG. 2, the margin portion 10 is specified as the hatched portion S1 in FIG. A hatched portion S2 corresponds to the small opening 6. As shown in FIG. In the example of FIG. 1, the portion S2 also corresponds to the small lid portion 3 . FIG. 2 is a plan view showing a margin portion 10 of the lid 1 of FIG.

(area of margin and area of small opening)
Although the size of the margin portion 10 is not particularly limited, it is preferable that the area of the margin portion 10 is smaller than the area of the small opening portion 6 in plan view of the base portion 2 . That is, in the example of FIG. 2, the area of the portion S1 corresponding to the margin portion 10 is smaller than the area of the portion S2 corresponding to the small opening portion 6 . In this case, since the size of the small opening 6 is larger than the size of the margin 10, when the lidded container 150 is in a state in which the small opening 6 is open (the lid is open), It becomes easy to add a liquid such as a beverage or a solid such as ice to the space 105 of the container 101 . Regarding the criteria for specifying the area of the margin portion 10 and the area of the small opening portion 6, both the area of the margin portion 10 and the area of the small opening portion 6 are measured in plan view of the lid 1 (see FIG. 2). (when the direction from the +Z direction to the -Z direction is the direction of the line of sight). The criteria for specifying the area shown here also apply to the area of the first portion, which will be described later.

(Area of Margin and Area of First Part)
It is preferable that the area of the margin portion 10 is larger than the area of the first portion 15A of the joining region corresponding portion 5 . 15 A of 1st parts here are parts specified as follows.

Assuming a state in which the base portion 2 is divided into two portions by an extension line ME extending outward along the hinge portion 4, the portion of the joint area corresponding portion 5 formed in the portion including the small opening 6 is defined as the first portion 15A, and the portion of the joining region corresponding portion 5 excluding the first portion 15A is defined as the second portion 15B.

When the area of the margin portion 10 is larger than the area of the first portion 15A of the bonding region corresponding portion 5, the margin portion 10 can be easily vertically bent with respect to the first portion 15A. When the small opening 6 is in the open state (the lid is open), the margin easily bends when a solid object collides with the margin when drinking a beverage or the like using the small opening 6 as a drinking port. It becomes easy to absorb the force applied to the margin part from the solid matter.

(shape of margin)
The shape of the margin portion 10 is determined according to the shapes of the small opening portion 6 and the joint area corresponding portion 5, but the inner edge 11A of the margin portion 10 and the outer edge 11B of the margin portion 10 are formed so as to be non-concentric. preferably. Here, non-concentric means that at least one of the contour shape of the inner edge 11A of the margin portion 10 and the contour shape of the outer edge 11B of the margin portion 10 deviates from the arc shape centered on the center CT of the lid body 1. indicate that In the example of FIG. 1, the contour shape of the inner edge 11A of the margin portion 10 is formed in a non-arcuate shape, and deviates from the arc shape around the center CT of the lid body 1 . However, as shown in the examples of FIGS. 9A and 9B, this means that the contour shape of the inner edge 11A of the margin portion 10 and the contour shape of the outer edge 11B of the margin portion 10 are centered on the center CT of the lid 1. It is not prohibited to have an arc shape. The example of FIGS. 9A and 9B is a plan view showing another example of the lid 1 of the first embodiment.

(Extension part)
In the lid body 1 according to the first embodiment, the extending portion 7 may be formed on the outer peripheral edge 2A of the base portion 2 . In the example of FIGS. 1A and 1B, the position of the extending portion 7 is such that the hinge portion 4 is positioned between the extending portion 7 and the front edge portion 75 forming the tip of the small lid portion 3 in the closed state. It is defined on the outer peripheral edge 2A of the base portion 2 so that it is located there. The shape of the extending portion 7 is not particularly limited, but in the example of FIG. 1A, the shape of the extending portion 7 is determined so that the outer peripheral edge 7A of the extending portion 7 has a gently curved convex shape. ing.

When the extending portion 7 is formed, a mark, characters, or the like indicating the container 101 corresponding to the lid 1 can be arranged on the extending portion 7 . For example, characters such as S, M, and L are arranged on the extension 7 by printing or the like. When the size of the container 101 is small, the lid 1 printed with the letter S is used. When the size of the container 101 is medium, the lid printed with the letter M is used. When the container 1 is used and the size of the container 101 is large, the types of the container 101 and the lid 1 are associated so that the lid 1 printed with the letter L is used. As a result, when joining the lid 1 to the container 101, it is possible to suppress the risk of joining the container 101 and the lid 1 with an incorrect combination of different sizes.

Moreover, when the extension part 7 is formed in the cover body 1, the extension part 7 can be used as a knob. Then, as in the example shown in FIG. 1, the outer peripheral edge of the base portion 2 is positioned so that the hinge portion 4 is positioned between the front edge portion 75 forming the tip of the small lid portion 3 and the extending portion 7 . By defining the extending portion 7 at 2A, the position of the front end edge portion 75 of the small lid portion 3 and the position of the extending portion 7 can be separated as much as possible. Since the position of the front edge 75 of the small lid part 3 and the position of the extending part 7 are separated as much as possible in this way, even if a person picks up the extending part 7 by hand and carries the lid 1, the lid 1 does not move. It is possible to suppress the possibility that a person who picks up the lid 1 touches the small lid portion 3 of the lid body 1, and it is possible to suppress contamination of the small lid portion 3 due to contact with a person's hand.

[1-2 Action and effect]
In a conventional lidded container in which the lid is joined to the edge of the container, when the lid is removed from the edge of the container, the container holds solids such as ice and a beverage. There was the possibility of ingesting the beverage from the rim of the container by placing the mouth on the top rim of the container. For this reason, when ingesting the beverage, solid matter such as ice may flow out from the edge of the container and the drinker may accidentally swallow the solid matter.

A margin portion 10 is provided in the lid body 1 according to the first embodiment. Therefore, when a beverage is taken by putting the lid-equipped container 150 to the mouth, even if solid matter such as ice is to flow out from the space 105 of the container 101 together, the liquid flows out from the small opening, but the ice or the like does not flow out. The flow of the solid matter from the margin portion 10 is likely to be restrained, and the risk of the ingestion person swallowing the solid matter by mistake can be suppressed.

Further, in the lid 1 according to the first embodiment, the small opening 6 has a larger area than the margin 10 , so beverages or the like can be additionally poured through the small opening 6 .

Further description of the modified example of the first embodiment will be continued.

[1-3 Modification]
(Modification 1)
In the lid body 1 according to the first embodiment, as shown in FIG. 4 , a projecting portion may be formed on the outer peripheral edge 3A of the small lid portion 3 . In this case, an opening edge 6A of the small opening 6 is formed with a concave portion corresponding to the projecting portion 13. As shown in FIG. The lid 1 having such a configuration is called Modified Example 1 of the first embodiment. FIG. 4 is a plan view schematically showing an example of the lid 1 according to Modification 1 of the first embodiment.

(overhang)
In the example of FIG. 4 , the projecting portion 13 is a portion that protrudes from the front edge portion 75 toward the outside of the small lid portion 3 . The projecting portion 13 is a shape of the outer peripheral edge 3A of the small lid portion 3 in plan view of the small lid portion 3, which protrudes outward compared to the outer peripheral edge 3A around the portion corresponding to the projecting portion 13. It can be specified as a portion having a contour shape. A concave portion 23 corresponding to the projecting portion 13 is formed at the opening edge 6A of the small opening portion 6. As shown in FIG. In the example of FIG. 4 , the recessed portion 23 is formed into a shape that fits with the projecting portion 13 . As a result, when the small opening 6 is closed again by the small lid portion 3, the base end of the projecting portion 13 is easily locked by the opening edge 6A of the small opening portion 6, and the small opening portion 6 is closed by the small lid portion 3. can be made easier to stabilize the reclosed state.

(Modification 2)
In the lid body 1 according to the first embodiment, as shown in FIG. 13, a recessed portion 14 may be formed in the outer peripheral edge 3A of the small lid portion 3. As shown in FIG. In this case, a convex portion 24 corresponding to the recessed portion 14 is formed on the opening edge 6A of the small opening portion 6. As shown in FIG. The lid body 1 having such a configuration is called Modified Example 2 of the first embodiment. FIG. 13 is a plan view schematically showing an example of the lid 1 according to Modification 2 of the first embodiment.

(Immersive part)
The recessed portion 14 is formed by hollowing out the small lid portion 3 in a direction toward the inner side of the small lid portion 3 at a predetermined position slightly toward the base end portion 74 of the small lid portion 3 from the front edge portion 75 . It's becoming In the example of FIG. 13 , the recessed portion 14 extends from the front edge 75 to each of the two side edges 76 at a predetermined position slightly toward the base end 74 of the small lid 3 and inside the small lid 3 . It is a portion in which the small lid portion 3 is hollowed out in a U shape in the facing direction.

(Convex portion)
A convex portion 24 corresponding to the recessed portion 14 is formed on the opening edge 6A of the small opening portion 6. As shown in FIG. The protruding portion 24 is formed in a shape that fits with the recessed portion 14, and is formed in a tongue shape in the example of FIG. As a result, when the small opening 6 is reclosed by the small lid portion 3, the recessed portion 14 is easily retained by the convex portion 24 of the opening edge 6A of the small opening portion 6 or its vicinity. The reclosed state of the small opening 6 can be easily stabilized.

(Modification 3)
In the lid body 1 according to the first embodiment, as shown in FIG. 10, a notch portion 8 may be provided in the base portion 2 . The lid body 1 having such a configuration is called Modified Example 3 of the first embodiment. FIG. 10 is a plan view schematically showing an example of the lid 1 according to Modification 3 of the first embodiment.

(notch)
In the modification 3 of the first embodiment, the notch 8 is formed in a cross shape. The notch 8 can be formed by vertically penetrating a member forming the base 2 of the lid. In the modification 3 of the first embodiment, the notch 8 is formed so that the notch 8 can be used as an insertion opening for a straw or the like. Further, as will be described later, in the case where the small lid portion 3 is provided with a claw portion 32 for holding the small opening portion 6 in an opened state, the cut portion 8 is provided for inserting the claw portion 32. It can be used as a hole. In this case, the cut portion 8 also serves as a part of a holding structure forming portion 30 to be described later, that is, the claw portion 32 and the cut portion 8 constitute the holding structure forming portion 30 . The shape of the cut portion 8 is not limited to a cross shape, and various shapes such as a C shape and a tongue shape may be used as long as it can be used as an insertion port for a straw or the like.

(Modification 4)
In the lid body 1 according to the first embodiment, as shown in FIGS. 15A and 15B, a depressed portion 12 may be formed inside the joint region corresponding portion 5 . The lid body 1 having such a configuration is called a modification 4 of the first embodiment. FIG. 15A is a plan view schematically showing an example of the lid 1 according to Modification 4 of the first embodiment. FIG. 15B is a cross-sectional view schematically showing the state of the vertical cross section taken along line DD of FIG. 15A.

(Recessed part)
The depressed portion 12 can be formed by embossing a member (sometimes referred to as a blank material) for forming the lid 1 . The range in which the depressed portion 12 is formed is not particularly limited as long as it is a portion inside the joint region corresponding portion 5 , but it is preferably a portion including the small lid portion 3 . Since the portion including the small lid portion 3 is the recessed portion 12, even if a liquid such as a beverage spills onto the exposed surface 72 side of the lid body 1, the liquid can be easily guided to the recessed portion 12. , the risk of the liquid spilling out to the outside of the lid 1 can be suppressed.

(Modification 5)
In the lid body 1 according to the first embodiment, as shown in FIG. 16A, the margin portion 10 extends obliquely downward or obliquely upward from the outer edge 11B of the margin portion 10 toward the inner edge 11A of the margin portion 10. You may have the inclined part 19 which inclines. The lid body 1 having such a configuration is called a modified example 5 of the first embodiment. FIG. 16A is a cross-sectional view schematically showing an example of the lid 1 according to Modification 5 of the first embodiment. FIG. 16A corresponds to a view showing a cross-section at the same position as the cross-section corresponding to FIG. 15B. This also applies to FIG. 16B.

(inclined part)
The inclined portion 19 may be formed on the entire margin portion 10 or may be formed on a portion thereof. Regarding the inclined state of the inclined portion 19, when the small lid portion 3 is lifted from the closed state of the lid body 1 to form the open lid state, the inner edge 11A of the small lid portion 3 and the margin portion 10 (the opening of the small opening portion 6) It is preferable that the inclination state of the inclined portion 19 can be changed at the contact portion with the edge 6A). For example, as the small lid portion 3 is lifted, the margin portion 10 is also lifted slightly upward (+Z direction), and the tilted state of the inclined portion 19 changes from a downwardly inclined state to an upwardly inclined state. An inclined portion 19 may be formed in the margin portion 10 so as to be in a flat state or a horizontal state. The small lid portion 3 and the small opening are arranged so that a frictional force exists between the outer peripheral edge 3A of the small lid portion 3 and the inner edge 11A of the margin portion 10 (opening edge 6A of the small opening portion 6) when the lid is closed. It can be realized by contacting the portion 6 .

In Modified Example 5 of the first embodiment, since the inclined portion 19 is formed, the inner edge 11A of the margin portion 10 is easily bent in the vertical direction (Z-axis direction) about the outer edge 11B of the margin portion 10. Therefore, according to the modification 4 of the first embodiment, the lid-equipped container 150 accommodates beverages and solids in the space of the container, and the small opening is opened (open lid state). In some cases, when a solid object collides with the margin when drinking a beverage, etc. using the small opening, the margin easily bends in the vertical direction, absorbing the force applied to the margin from the solid object. easier to do.

(Another example of inclined part)
The inclined portion 19 may be formed not only on the margin portion 10 but also on the entire inner side of the joint region corresponding portion 5 as shown in FIG. 16B. FIG. 16B is a cross-sectional view schematically showing another example of the lid 1 according to Modification 5 of the first embodiment. In this case, the sloped portion 19 forms a sloped surface that slopes from the inner edge of the joint region corresponding portion 5 toward the inner side of the lid 1 .

(Modification 6)
In the lid 1 according to the first embodiment, as shown in FIG. As shown in 9B, the width W of the small lid portion 3 gradually increases from the front edge portion 75 to a predetermined position toward the hinge portion 4, and the width W gradually increases from that predetermined position toward the hinge portion 4. It may be smaller. The lid body 1 having such a configuration is called a modification 6 of the first embodiment. FIG. 9B is a plan view schematically showing an example of the lid 1 according to Modification 6 of the first embodiment. In the example of FIG. 9B, the inner edge 11A of the margin portion 10 and the outer edge 11B of the margin portion 10 are formed concentrically.

(Modification 7)
In the lid body 1 according to the first embodiment, the stress adjusting portion 26 may be formed in the proximal end portion 74 of the small lid portion 3 as shown in FIGS. 19A and 19B. The lid body 1 having such a configuration is called Modified Example 7 of the first embodiment. 19A and 19B are plan views schematically showing an example of the lid 1 according to Modification 7 of the first embodiment. In the example of FIG. 19A , the stress adjustment portion 26 is a portion that curves outward in a U shape at the base end portion 74 of the small lid portion 3 . In the example of FIG. 19B, the stress adjusting portion 26 is a substantially circular through hole formed in the proximal end portion 74 of the small lid portion 3 . By providing the stress adjusting portion 26, when the small lid portion 3 is rotated around the hinge portion 4, the stress applied to the base end portion 74 of the small lid portion 3 can be prevented from concentrating at one point. Also, it is possible to reduce the possibility that the lid 1 is torn from the base end 74 toward the base 2 and that the small lid 3 rotates about the hinge 4 as an axis. In addition, when the stress adjusting portion 26 is formed, the stress adjusting portion 26 is assumed to be included in the base end portion 74 of the small lid portion 3 . Therefore, as shown in FIGS. 19A and 19B, the hinge portion 4 is formed at a position corresponding to a straight line connecting the ends of the stress adjusting portion 26 in general. Therefore, the small lid portion 3 and the margin portion 10 can be defined as hatched portions in FIGS. 19A and 19B, respectively.

[2 Second embodiment]
[2-1 Configuration]
The lid 1 according to the second embodiment is provided with a knob 21 on the small lid 3 as shown in FIG. 5 and the like in the first embodiment. The lid body 1 having such a configuration is called a second embodiment. FIG. 5 is a plan view schematically showing an example of the lid 1 according to the second embodiment.

Since the lid body 1 according to the second embodiment may be the same as that of the first embodiment except for the configuration in which the small lid portion 3 is provided with the knob portion 21, the configuration in which the small lid portion 3 is provided with the knob portion 21 is sufficient. Descriptions of other configurations (the base portion 2, the hinge portion 4, the margin portion 10, etc.) other than the above are omitted.

(Knob part)
In the example of the second embodiment shown in FIG. 5, when the small opening 6 is closed by the small lid portion 3, the upper surface side, which is the exposed surface of the small lid portion 3 (the exposed surface 72 of the lid body 1), is exposed. A knob 21 is provided. The structure of the knob portion 21 is not particularly limited as long as the small lid portion 3 can be rotated around the hinge portion 4, but in the example of FIG. there is

(tab member)
In the example of FIG. 5, when the small opening 6 is closed by the small lid portion 3, the tab member 31 has one end portion 31A joined to the small lid portion 3, and the other end portion of the tab member 31 is joined to the small lid portion 3. A portion 31B is a free end. A portion of the tab member 31 that is joined to the small lid portion 3 is called a tab joint portion 34 . Except for the tab joint portion 34 of the tab member 31, the portion on the free end side of the tab member 31 (the portion on the other end portion 31B side) is sized and shaped so that the tab member 31 can be picked up by hand. As long as it is formed, its shape and structure are not particularly limited. The material of the tab member 31 may be the same as the material of the lid body 1 described in the first embodiment, and may be made of a paper-based material.

In the lid 1, the attachment position and attachment direction of the tab member 31 in the small lid portion 3 are not particularly limited, but in the example of FIG. That is, it is joined to the small lid portion 3 in the vicinity of the front edge portion 75).

As a method for joining the tab member 31 to the small lid portion 3 (that is, a method for forming the tab joining portion 34), various methods such as ultrasonic joining, heat sealing, and joining with an adhesive can be exemplified. As a method for forming the tab joint portion 34, among the methods described above, ultrasonic bonding is preferable from the viewpoint of ease of bonding, strength of bonding, and the like. The formation position of the tab joint portion 34 in the small lid portion 3 is from the viewpoint of facilitating raising the small lid portion 3 (rotating the small lid portion 3) by lifting the tab member 31. It is preferable that the position is shifted from the central portion of 3 .

(Direction of tab member (mounting direction))
In the lid 1, in the example of FIG. 5, the other end 31B side (free end side) of the tab member 31 is arranged to be closer to the hinge part 4 than the one end 31A of the tab member 31. It is However, this is only an example, and the orientation of the tab member 31 may be an orientation other than the orientation shown in the example of FIG. For example, the tab member 31 may be arranged such that the other end portion 31B of the tab member 31 is located farther from the hinge portion 4 than the one end portion 31A of the tab member 31 is.

[2-2 Action and effect]
According to the lid body 1 according to the second embodiment, the same effects as those of the first embodiment can be obtained. Further, in the lid body 1 according to the second embodiment, the knob portion 21 is provided, so that the small lid portion 3 can be easily pulled up.

Further description of the modified example of the second embodiment will be continued.

[2-3 Modification]
(Modification 1)
When the tab member 31 is provided as the knob portion 21 in the lid body 1 according to the second embodiment, as shown in FIG. A portion of the member 31 may intersect the opening edge 6A of the small opening 6 when the base portion 2 is viewed from above. The lid 1 having such a configuration is called Modified Example 1 of the second embodiment. FIG. 11 is a plan view schematically showing an example of the lid 1 according to Modification 1 of the second embodiment.

11, the edge of the tab member 31 on the side of one end (one end portion 31A) intersects the opening edge 6A of the small opening portion 6, and the portion of the tab member 31 that overlaps the upper surface of the base portion 2 is called an overlapping portion 35. name. When the overlapping portion 35 is formed, after opening the small opening 6 with the small lid portion 3, when closing the small opening 6 with the small lid portion 3 again, the overlapping portion 35 is lowered to the small opening portion 6. By pressing in the direction (-Z direction), a state is formed in which the overlapping portion 35 is latched to the opening edge 6A of the small opening 6 below the small opening 6. As shown in FIG. As a result, the state in which the small opening 6 is reclosed by the small lid 3 can be further stabilized.

In addition, from the viewpoint that the overlapping portion 35 facilitates the function of further stabilizing the state in which the small opening portion 6 is reclosed by the small lid portion 3 as described above, it will be explained in the first modification example of the first embodiment. It is preferable that the small lid portion 3 is formed with the projecting portion 13 as described above. In this case, as shown in FIG. 12, when the small lid portion 3 is formed with an overhanging portion 13, a portion of the one end (one end portion 31A) side of the tab member 31 extends outward from the overhanging portion 13. It is preferable that the extending portion is the overlapping portion 35 . FIG. 12 is a plan view schematically showing an example of the lid 1 according to Modification 1 of the second embodiment. In the case of the lid body 1 shown in the example of FIG. 12, a state is formed in which the overlapping portion 35 of the tab member 31 is more reliably latched to the lower side of the opening edge 6A of the small opening portion 6 (on the facing surface 73 side). , and the state in which the small opening 6 is reclosed by the small lid 3 can be further stabilized.

(Modification 2)
In the lid body 1 according to the second embodiment, as shown in the example of FIG. 6, the small opening portion 6 is opened by rotating the small lid portion 3 with respect to the base portion 2 about the hinge portion 4. It may have a holding structure forming portion 30 which is a portion forming a holding structure for holding the small lid portion 3 in a state. The lid 1 having such a configuration is called Modified Example 1 of the second embodiment. FIG. 6 is a plan view schematically showing an example of the lid 1 according to Modification 2 of the second embodiment.

(Holding structure forming part)
The configuration of the holding structure forming portion 30 is not particularly limited. For example, in the example of the lid 1 shown in FIG. 6, the claw portion 32 and the receiving portion 33 form the holding structure forming portion 30.

(claw)
As shown in the example of FIG. 6, the claw portion 32 may be any portion that has a structure that can be engaged with a receiving portion 33 described later by latching, inserting, or the like. In the example of FIG. 6 , the claw portion 32 is provided on a tab member 31 as an example of the knob portion 21 . Further, in this example, the claw portion 32 is formed at a predetermined position of the tab member 31 by a cut portion formed in a contour shape such as a generally mountain shape.

(Receiving part)
The receiving portion 33 is formed in a shape such that the claw portion 32 can be engaged or inserted. In the example of FIG. 6, the receiving portion 33 is a slit portion formed by cutting the base portion 2 at a predetermined position. The receiving portion 33 is formed at a position where it can face the claw portion 32 when the tab member 31 is displaced so as to rotate the small lid portion 3 .

(Formation of holding structure)
When the small lid portion 3 of the lid body 1 is raised, the knob is pulled up. At this time, by pulling up the tab member 31 and bending a predetermined portion on the free end side (the other end portion 31B side) of the tab member 31, the claw portion 32 protrudes downward or upward. Then, the tab member 31 is displaced so as to rotate the small lid portion 3 until the claw portion 32 of the small lid portion 3 reaches a position facing the receiving portion 33 or a position in the vicinity of that position. Then, the claw portion 32 of the tab member 31 is hooked or inserted into the receiving portion 33 . Thus, a holding structure for holding the small lid portion 3 with the small opening portion 6 exposed is formed.

In the above description, the holding structure forming portion 30 has a slit as the receiving portion 33, but the structure corresponding to the receiving portion 33 is not limited to the slit.

(Another example of the holding structure forming part)
When the base portion 2 of the lid body 1 is provided with an extending portion, as shown in FIG. 7, the extending portion may function as a receiving portion. FIG. 7 is a plan view schematically showing an example of the lid 1 (another example of the holding structure forming portion) according to Modification 2 of the second embodiment.

7, the claw portion 32 is formed on the knob portion 21 (the tab member 31 in FIG. 7) as in the example of FIG. 6, and the claw portion 32 and the extension portion 7 form a holding structure. It forms part 30 . In the example of FIG. 7, the extending portion 7 is arranged so that the outer peripheral edge 7A of the extending portion 7 faces the claw portion 32 when the tab member 31 is displaced so as to rotate the small lid portion 3. In the example of FIG. , is formed.

(Formation of holding structure)
7, similarly to the example of FIG. 6, the tab member 31 is pulled up in the direction of arrow F in FIG. 8A when the small lid portion 3 is raised. FIG. 8A is a cross-sectional view schematically showing the state of the vertical cross-section taken along line CC of FIG. In the example of FIG. 7, similarly to the example of FIG. 6, the tab member 31 is pulled up and a predetermined portion of the free end side (the other end portion 31B side) of the tab member 31 is bent, so that the claw portion is bent downward or upward. It has a protruding shape. Then, the tab member 31 is displaced so as to rotate the small lid portion 3 until the claw portion 32 of the small lid portion 3 reaches a position facing the outer peripheral edge 7A of the extension portion 7 or a position near that position. Then, as shown in FIG. 8B, the claw portion 32 of the small lid portion 3 is hooked or inserted into the extension portion 7 . As a result, a holding structure for holding the small lid portion 3 with the small opening portion 6 as an exposure opening for the space portion 105 is formed. FIG. 8B is a cross-sectional view for explaining one embodiment of the holding structure.

[3 Third Embodiment]
The lid 1 according to the third embodiment may be provided with a plurality of margin portions as shown in FIGS. 14A and 14B. The lid body 1 having such a configuration is called a third embodiment. FIG. 14A is a plan view schematically showing one example of the lid 1 according to the third embodiment. FIG. 14B is a diagram for explaining the margin section 10. FIG. The lid 1 according to the third embodiment is also provided with a small lid portion 3, a base portion 2 and a hinge portion 4 as in the first embodiment. The cover 1 according to the third embodiment is the same as the first embodiment except that a plurality of margin portions 10 are formed and the forming portions (positions) of the small cover portion 3 and the small opening portion 6 are different. Since it may be the same as the form, description of these other points is omitted.

(Formation portion of the small lid portion 3 and the small opening portion)
In the third embodiment, the front edge portion 75 of the small lid portion 3 is formed at a position overlapping the joining area corresponding portion 5 . In addition, since the opening edge 6A of the small opening 6 corresponds to the outer peripheral edge 3A of the small lid portion 3, a part of the small opening 6 overlaps the joining area corresponding portion 5 as in the case of the small lid portion. there is Therefore, in the example of the third embodiment shown in FIG. 14A, the container 101 is opened with the lid opened (the small opening is exposed by rotating the small lid portion 3 around the hinge portion 4). A portion of the edge 103 and the small opening form an opening (portion serving as an exposure opening) that exposes the space 105 of the container.

(Margin part)
The margin portion 10 is defined similarly to the first embodiment. Therefore, in the example of FIG. 14, as the margin portion 10, a first margin portion 10A and a second margin portion 10B are formed.

(Area of first and second margins and area of small opening)
The size of the first margin portion 10A and the size of the second margin portion 10B are not particularly limited, respectively. The sum is preferably smaller than the area of the small opening 6 (which also corresponds to the area of the small lid 3 in the example of FIG. 14A). That is, in the example of FIG. 14B, the total area of the portion S11 corresponding to the first margin portion 10A and the portion S12 corresponding to the second margin portion 10B is the area of the portion S2 corresponding to the small opening 6 (the small lid portion 3 area). In this case, since the size of the small opening 6 (the area of the portion S1) is larger than the size of the margin portion 10 (the sum of the areas of the portions S11 and S12), the lidded container 150 is small. When the opening 6 is opened (the lid is open), it becomes easy to add a liquid such as a beverage or a solid such as ice to the space 105 of the container 101 .

[4 Application example]
The lid 1 according to the first embodiment can be used for a lidded container 150 as shown in FIGS. 3A and 3B. FIG. 3A is a perspective view showing an example in which the lid body 1 according to the first embodiment is joined to the edge portion 103 forming the outer periphery of the opening 102 of the container 101 having the opening 102 formed at the upper end. is. FIG. 3B is a cross-sectional view schematically showing the state of the vertical cross section taken along line BB of FIG. 3A. The description of the lidded container 150 will be continued with reference to FIGS. 3A and 3B.

(container with lid)
The lidded container 150 has a joint 151 where the container 101 and the lid 1 are joined together. A method for joining the lid 1 and the container 101 is not particularly limited, and a joining method such as a crimping method or a heat sealing method can be appropriately used. A case where the lid 1 according to the first embodiment is used for a lidded container 150 will be described below as an example.

In the example shown in FIGS. 3A and 3B, the container 101 has a cylindrical side wall 104 and a bottom portion 107 whose diameter increases upward (tapers downward) and has a space inside. It has a container body 110 forming a portion 105 and an opening 102 opened at the upper end of the container body 110 (the upper end of the side wall 104). Although not shown, the opening 102 of the container 101 is formed in a circular shape. However, the container 101 shown here is an example, and the configuration of the container 101 is not limited. For example, container 101 may have opening 102 formed in a rectangular shape. The container 101 may be of any type as long as the opening 102 can be covered with the lid 1 . Moreover, what is stored inside the container 101 (the space portion 105) is not particularly limited, and examples thereof include liquid substances, solid substances, and combinations thereof.

In the container shown in FIG. 3, edge 103 of opening 102 has a flange. The flange portion may be a curled portion 108 in which a member forming the container body 110 is wound outward as shown in FIG. may be

Also, the lid 1 according to the first embodiment may be combined with the container 101 having the opening 102 .

What has been described in [4 Application Example] is not limited to the case of using the lid body 1 according to the first embodiment. The second embodiment and the third embodiment can also be used for a lid-equipped container 150 joined to the container 101 in the same manner as the lid 1 according to the first embodiment (not shown).

As explained so far, the lid 1 according to the present invention can be applied to such many types of lids 1 . Moreover, it is also possible to apply it to the cover 1 of the aspect other than above-mentioned. Although the lid according to the present invention has been described in detail above, the above is merely an example of the lid according to the present invention, and the present invention is not limited thereto. Therefore, modifications may be made as appropriate without departing from the gist of the present invention. In addition, for the configuration of the lid described above, the configuration of each example of the lid may be used independently, or the configurations of the lids of each example may be appropriately combined and applied.

Based on the above description of the specification, the present invention may employ the following configurations.
[E1]
formed so as to be connectable to a container having an opening formed at the upper end and a rim forming the outer periphery of the opening,
a base portion having a joining region corresponding portion corresponding to a region joined to the container along the edge of the container and a small opening having an opening area smaller than that of the opening of the container; a small lid portion that opens and closes a portion, and a hinge portion that connects the base portion and the small lid portion,
The small lid portion is configured to be rotatable with respect to the base portion around the hinge portion,
In a plan view of the base portion, the base portion has an eaves portion inside from the inner edge of the joint area corresponding portion and outside from the opening edge of the small opening,
lid.
[E2]
The eaves portion is a margin portion defined as a portion that satisfies the following conditions 1 and 2,
The lid according to [E1] above.
Condition 1: In a plan view of the base portion, the margin portion is a portion of the base portion formed inside from the inner edge of the joining area corresponding portion and outside from the opening edge of the small opening.
Condition 2: Assuming a line segment connecting the margin portion and the hinge portion in plan view of the base portion, the line segment passes through the opening edge of the small opening.
[E3]
In a plan view of the base portion, the area of the margin portion is smaller than the area of the small opening,
The lid described in [E2] above.
[E4]
The margin portion is formed such that an inner edge of the margin portion and an outer edge of the margin portion are non-concentric.
The lid according to [E2] or [E3] above.
[E5]
The margin portion has an inclined portion that slopes downward from the outer edge of the margin portion toward the inner edge of the margin portion.
The lid according to any one of [E2] to [E4] above.
[E6]
A knob is provided on the upper surface side of the small lid,
The lid according to any one of [E1] to [E5] above.
[E7]
The knob has a tab member,
The tab member is joined to the upper surface side of the small lid portion,
The lid described in [E6] above.
[E8]
When the small lid closes the small opening, a portion of the tab member intersects the opening edge of the small opening when viewed from above the base.
The lid described in [E7] above.
[E9]
a holding structure forming portion that holds the small lid portion in a state in which the small opening portion is opened by rotating the small lid portion with respect to the base portion about the hinge portion;
A claw portion is provided on the knob portion,
The base portion is provided with a receiving portion at a position in contact with the claw portion,
wherein the claw portion and the receiving portion form the holding structure forming portion;
The lid according to any one of [E6] to [E8] above.
[E10]
An extending portion is formed on the outer peripheral edge of the base portion,
The lid according to any one of [E1] to [E9] above.
[E11]
a holding structure forming portion that holds the small lid portion in a state in which the small opening portion is opened by rotating the small lid portion with respect to the base portion about the hinge portion;
A knob portion is provided on the upper surface side of the small lid portion,
A claw portion is provided on the knob portion,
wherein the extending portion and the claw portion form the holding structure forming portion;
The lid described in [E10] above.
[E12]
The hinge portion is formed between the extending portion and the tip of the small lid portion.
The lid according to [E10] or [E11] above.
[E13]
A depressed portion is formed in a portion inside the joint region corresponding portion,
The lid according to any one of [E1] to [E12] above.
[E14]
A protruding portion is formed on the outer peripheral edge of the small lid portion,
A recessed portion corresponding to the projecting portion is formed at the opening edge of the small opening,
The lid according to any one of [E1] to [E13] above.
[E15]
A recessed portion is formed in the outer peripheral edge of the small lid portion,
A convex portion corresponding to the recessed portion is formed on the opening edge of the small opening,
The lid according to any one of [E1] to [E14] above.
[E16]
A connection structure is formed to connect the outer peripheral edge of the small lid portion and the opening edge of the small opening,
The connection structure is a fragile portion that is more fragile than the small lid portion,
When the small lid rotates about the hinge with respect to the base, the fragile portion is destroyed.
The lid according to any one of [E1] to [E15] above.
[E17]
The fragile part has a combination structure of connecting parts and cuts and / or a half-cut structure,
The lid described in [E16] above.
[E18]
Made of paper-based material,
The lid according to any one of [E1] to [E17] above.
[E19]
a holding structure forming portion that holds the small lid portion in a state where the small opening portion is opened by rotating the small lid portion with respect to the base portion about the hinge portion;
The lid according to any one of [E1] to [E18] above.
[E20]
the lid according to any one of [E1] to [E19];
the container having the opening formed at the upper end and the rim forming the outer circumference of the opening;
The lid body is joined to the container,
A container with a lid.
[E21]
the lid according to any one of [E1] to [E19];
the container having the opening formed at the upper end and the rim forming the outer periphery of the opening;
Combination of lid and container.

Reference Signs List 1: lid body 2: base portion 2A: outer peripheral edge 3: small lid portion 3A: outer peripheral edge 4: hinge portion 5: joining area corresponding portion 6: small opening portion 6A: opening edge 7: extension portion 7A: outer peripheral edge 8 : Cut portion 10 : Margin portion 10A : First margin portion 10B : Second margin portion 11A : Inner edge 11B : Outer edge 12 : Depressed portion 13 : Overhanging portion 14 : Recessed portion 15A : First portion 15B : Second portion 16: Half cut portion 17: Connection structure 18A: Continuous portion 18B: Cutting portion 19: Inclined portion 20: Opening forming portion 21: Knob portion 23: Concave portion 24: Convex portion 26: Stress adjustment portion 30: Holding structure formation Part 31 : Tab member 31A : One end 31B : Other end 32 : Claw part 33 : Receiving part 34 : Tab joint part 35 : Part 72 : Exposed surface 73 : Opposite surface 74 : Base end 75 : Front edge 76 : Side edge 101 : Container 102 : Opening 103 : Edge 104 : Side wall 105 : Space 107 : Bottom 108 : Curl 110 : Container main body 150 : Lid-covered container 151 : Joint CT : Center F : Arrow M : Line segment ME : Extension line R : Joining area S1 : Part S11 : Part S12 : Part S2 : Part SB1 : Predetermined position SB2 : Corresponding position XS : Area

Claims (20)

formed so as to be connectable to a container having an opening formed at the upper end and a rim forming the outer periphery of the opening,
a base portion having a joining area corresponding portion corresponding to an area joined to the container along the edge of the container and a small opening having a smaller opening area than the opening of the container; and a front edge portion. and a base end portion for opening and closing the small opening; and a hinge portion for connecting the base portion and the small lid portion,
The small lid portion is configured to be rotatable with respect to the base portion around the hinge portion,
In a plan view of the base portion, the base portion has an eaves portion inside from the inner edge of the joint area corresponding portion and outside from the opening edge of the small opening,
When the width of the small lid portion is defined as the length along the hinge portion of the length of the small lid portion, the width of the small lid portion is a predetermined distance from the front edge toward the base end. increasing from the position toward the proximal end,
Made of paper-based material,
lid. The eaves portion is a margin portion defined as a portion that satisfies the following conditions 1 and 2,
The lid according to claim 1.

Condition 1: In a plan view of the base portion, the margin portion is a portion of the base portion formed inside from the inner edge of the joining area corresponding portion and outside from the opening edge of the small opening.
Condition 2: Assuming a line segment connecting the margin portion and the hinge portion in plan view of the base portion, the line segment passes through the opening edge of the small opening.
In a plan view of the base portion, the area of the margin portion is smaller than the area of the small opening,
The lid according to claim 2. The margin portion is formed such that an inner edge of the margin portion and an outer edge of the margin portion are non-concentric.
The lid according to claim 2. The margin portion has an inclined portion that slopes downward from the outer edge of the margin portion toward the inner edge of the margin portion.
The lid according to claim 2. A knob is provided on the upper surface side of the small lid,
The lid according to claim 1. The knob has a tab member,
The tab member is joined to the upper surface side of the small lid portion,
The lid according to claim 6. When the small lid closes the small opening, a portion of the tab member intersects the opening edge of the small opening when viewed from above the base.
The lid according to claim 7. a holding structure forming portion that holds the small lid portion in a state in which the small opening portion is opened by rotating the small lid portion with respect to the base portion about the hinge portion;
A claw portion is provided on the knob portion,
The base portion is provided with a receiving portion at a position in contact with the claw portion,
wherein the claw portion and the receiving portion form the holding structure forming portion;
The lid according to claim 6. An extending portion is formed on the outer peripheral edge of the base portion,
The lid according to claim 1. a holding structure forming portion that holds the small lid portion in a state in which the small opening portion is opened by rotating the small lid portion with respect to the base portion about the hinge portion;
A knob portion is provided on the upper surface side of the small lid portion,
A claw portion is provided on the knob portion,
wherein the extending portion and the claw portion form the holding structure forming portion;
The lid according to claim 10. The hinge portion is formed between the extending portion and the tip of the small lid portion.
The lid according to claim 10 or 11. A depressed portion is formed in a portion inside the joint region corresponding portion,
The lid according to claim 1. A protruding portion is formed on the outer peripheral edge of the small lid portion,
A recessed portion corresponding to the projecting portion is formed at the opening edge of the small opening,
The lid according to claim 1. A recessed portion is formed in the outer peripheral edge of the small lid portion,
A convex portion corresponding to the recessed portion is formed on the opening edge of the small opening,
The lid according to claim 1. A connection structure is formed to connect the outer peripheral edge of the small lid portion and the opening edge of the small opening,
The connection structure is a fragile portion that is more fragile than the small lid portion,
When the small lid rotates about the hinge with respect to the base, the fragile portion is destroyed.
The lid according to claim 1. The fragile part has a combination structure of connecting parts and cuts and / or a half-cut structure,
The lid according to claim 16. The shape of the opening edge of the small opening is curved at least from a position corresponding to the predetermined position of the small lid to a position corresponding to the base end.
The lid according to claim 1. a lid according to claim 1;
the container having the opening formed at the upper end and the rim forming the outer circumference of the opening;
The lid body is joined to the container,
A container with a lid. a lid according to claim 1;
the container having the opening formed at the upper end and the rim forming the outer periphery of the opening;
Combination of lid and container.

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