WO2001056899A1

WO2001056899A1 - Cover body of container

Info

Publication number: WO2001056899A1
Application number: PCT/JP2000/000514
Authority: WO
Inventors: Saburo Sakurai; Norihiro Ishimoto
Original assignee: Yugenkaisha Toshin
Priority date: 2000-01-31
Filing date: 2000-01-31
Publication date: 2001-08-09

Abstract

A cover body of a container which is suitable particularly for a beverage container such as a cup, can securely close the upper part of the container, eliminates the need for removing it from the container each time beverage is drunk, and can close the upper part of the container by installing it detachably on the upper end of the container, characterized in that cover body structure parts forming a fixed side and an opening and closing side when the container is installed are formed so that they can be bent at any bending position, a flange part and a projected part for closely inserting the upper end part of a container mouth part between them are formed on the outer periphery and lower surface side of these both cover body structure parts, and a connection means for connecting both cover body structure parts disengageably in folded condition is provided on both cover body structure parts or either of them.

Description

Itoda

Technical field of container lid

The present invention relates to a lid for a container, particularly a lid suitable for a beverage container such as a disposable paper cup or a plastic cup. Background description

In highway service areas, etc., vending machines that provide soft drinks, beverages such as coffee and tea in disposable paper cups and plastic cups are used, but this type of disposable cup is generally used. Since the has no lid, there is a drawback that the beverage is easily spilled when brought into the car. On the other hand, it is possible to sell these beverage cups with a simple lid attached, but if you drink the beverage in the cup in several portions, in order to avoid spilling the beverage, The inconvenience of having to remove the lid from the cup each time you drink it is also inconvenient, as is the inconvenience of placing the lid with a wet inside.

Therefore, the object of the present invention is applied to beverage containers such as disposable paper cups, plastic cups and other various beverage cups, beverage bottles, beverage pet bottles, and other containers. A lid that can securely close the mouth of the container and is easy to open and close. To provide a lid that does not have a cover. Disclosure of the invention The features of the present invention for solving such a problem are as follows.

[1] A thin plastic or paper lid that seals the container by being attached to the mouth of the container,

The lid is configured to be freely bendable along an arbitrary transverse line that crosses the plane, and at least a part of the outer periphery of both lid body parts bordering the bent portion includes: A flange to be in contact with the upper end outside of the container is formed,

Of the two lid component parts, in the circumferential direction on the lower surface side of the lid component part which should be the fixed-side lid component part when the container is mounted, there is a gap in which the upper end of the container can be fitted with the flange part. A continuous or discontinuous projection or step is formed, and at least a part of a circumferential direction on a lower surface side of the lid component that should be the opening / closing lid component when the container is mounted is provided with the flange portion. A protrusion or step is formed with a gap that allows the upper end of the container to be fitted between

The two lid component parts or either one of the lid component parts may be provided with both lids in a state where the two lid component parts are bent from the bent portion so that the upper surface side of the both lid component parts is inside. A container lid provided with a connecting means for removably connecting the body components.

[2] In the lid according to the above [1], a continuous convex portion or a step portion is formed in a circumferential direction on a lower surface side of the lid constituting portion to be a fixed-side lid constituting portion when the container is mounted. A lid for a container, characterized in that a groove into which the upper end of the container is fitted is formed between the flange or the step or the step.

[3] In the lid according to the above [1] or [2], the connecting means includes a concave portion formed on an upper surface of one of the lid constituting portions, and the other lid. A projection is formed on the upper surface of the component, and is engaged with the recess so as to be detachably locked. A lid for a container, characterized in that:

[4] In the lid according to the above [1] or [2], the connecting means may include a slit formed on one of the lid constituting parts and the other lid. A lid formed on an upper surface of the component, the projection being inserted into the slit and locked to be detachable.

[5] A thin plastic or paper lid that is attached to the mouth of the container to seal the container,

The lid is configured to be freely bendable along an arbitrary transverse line that crosses the plane, and both lid constituent parts bordering the bent portion are fitted over the upper end of the container opening. By being stopped, it can be attached to the container, and at least one of the lid constituting parts, which is the opening and closing side lid constituting part, is configured to be able to be fitted and detached from the upper end of the container opening. The body component includes a concave portion formed on the upper surface of one of the lid component portions, and a concave portion formed on the upper surface of the other lid component portion, and the both lid component portions are bent from the bent portion. A connecting means comprising a projection which is inserted into the recess in the retracted state and is removably locked.

A groove or a slit is formed on the protrusion from the upper end toward the base end portion, and when the protrusion is fitted into the concave portion, a protrusion on both sides of the groove or the slit is formed. A container lid characterized in that the component is deformed to the groove or slit side.

[6] The lid of the container according to [1], wherein the groove or Z of the projection and the slit are formed so as to cross the radial direction of the projection.

[7] The lid of the container according to [1], wherein the groove or the slit of the projection is formed so as to cross the projection radial direction substantially in a cross shape. [8] A thin plastic or paper lid that is attached to the mouth of the container to seal the container,

The projection and the recess have different planar shapes, and the horizontal cross-sectional area of the recess is larger than the horizontal cross-sectional area of the projection.

[9] The lid of the container according to the above [4], wherein one of the projection and the recess has a circular shape and the other has a non-circular shape.

[10] The lid of the container according to [5], wherein the projection has a circular planar shape and the concave has a non-circular planar shape.

[1 1] The lid of the container according to [5] or [6], wherein the non-circular shape is a square with a rounded corner.

[12] In the lid according to any one of the above [4] to [: 7], the protrusion is formed with a groove or a groove and a slit from the upper end toward the base end, and the protrusion is formed in the concave portion. A lid for a container, characterized in that, when inserted into a groove, the projecting components on both sides of the groove or / and the slit are deformed toward the groove or / and the slit.

[13] In the lid according to the above [8], the grooves or / and the slits of the projections extend in the radial direction of the projections. A container lid formed so as to be cut off.

[14] The lid of the container according to the above [8], wherein the groove or the projection and the slit of the projection are formed so as to cross the projection radial direction substantially crosswise.

[15] In the lid according to any one of [1] to [10], at least a part of the outer periphery of both lid constituting parts has a flange to be in contact with an outer side of the upper end of the container opening. The upper end of the container opening is formed between the flange and the flange in the circumferential direction on the lower surface side of the lid component that is to be the fixed lid component when the container is mounted. A continuous or discontinuous projection or step is formed with a gap that can be fitted into the container, and at least a part of the lower surface side of the lid component that should be the open / close lid component when the container is mounted A lid for a container, wherein a projection or a step is formed with a gap between the flange and the flange so that the upper end of the container opening can be fitted therein.

[16] In the lid according to the above [U], a continuous convex portion or a step portion is formed in a circumferential direction on a lower surface side of the lid component portion to be a fixed-side lid component portion when the container is mounted. A groove for receiving the upper end of the container opening is formed between the step portion and the flange portion.

Such a lid of the present invention can securely close the upper part of the container and can be easily opened and closed. Therefore, particularly when applied to a beverage container, the lid can be partially operated by a simple operation. It is possible to drink the beverage in the beverage container only by opening only the lid component of the container, and it is not necessary to remove the lid from the beverage container each time drinking the beverage. For this reason, the lid of the present invention is particularly suitable as a lid for a cup beverage or the like provided by a vending machine installed in a service area or the like of a highway. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a rear view showing an embodiment of the lid of the present invention. FIG. 2 is a sectional view taken along the line II-II in FIG.

FIG. 3 is a cross-sectional view showing a state in which the opening / closing side lid component is opened from the state of FIG. FIG. 4 is a perspective view showing a state where the lid of the embodiment of FIG. 1 is attached to a cup. FIG. 5 is a perspective view showing a state in which the lid of the embodiment of FIG. 1 is attached to the cup, and showing a state in which the opening / closing-side lid component is opened from the state of FIG.

FIG. 6 is a rear view showing another embodiment of the lid of the present invention.

FIG. 7 is a rear view showing another embodiment of the lid of the present invention.

FIG. 8 is a sectional view showing another embodiment of the lid of the present invention.

FIG. 9 is a rear view showing another embodiment of the lid of the present invention.

FIG. 10 is a sectional view taken along the line X--X in FIG.

FIG. 11 is a rear view showing another embodiment of the lid of the present invention.

FIG. 12 is a cross-sectional view taken along the line XII-XII in FIG.

FIG. 13 is a perspective view partially showing a projection of the lid of the embodiment of FIG. FIG. 14 is an explanatory view showing the planar shapes of the projections and recesses of the lid of the embodiment of FIG.

FIG. 15 is a cross-sectional view showing a state in which the opening / closing side lid component is opened from the state of FIG.

FIG. 16 is a perspective view showing a state where the lid of the embodiment of FIG. 11 is attached to the cup. FIG. 17 is a state where the lid of the embodiment of FIG. 11 is attached to the cup. FIG. 7 is a perspective view showing a state in which the opening / closing side lid component is opened from the state of FIG.

FIG. 18 is an explanatory view showing another example of the planar shape of the projection and the concave portion of the lid of the present invention.

FIG. 19 is a perspective view showing another embodiment of the projection of the lid of the present invention. FIG. 20 shows another embodiment of the concave portion of the lid of the present invention, wherein (a) is a plan view and (b) is a longitudinal sectional view.

FIG. 21 is a longitudinal sectional view showing another embodiment of the flange of the lid of the present invention. Embodiment of the Invention

1 to 5 show an embodiment in which the present invention is applied to a cup lid, where A is a cup such as a paper cup, 1 is a lid of the present invention, and the lid 1 is By being detachably attached to the upper end of Cup A, the upper part of Cup A can be sealed.

The lid 1 of the present invention can be obtained by molding or molding a plastic film, plastic sheet, paper whose surface is coated with resin, or the like, for example, made of thin plastic or paper.

The lid 1 is configured to be freely bendable along an arbitrary transverse line that crosses the plane _c . One of the lid constituting parts 2 a is fitted with a cup with respect to the bent part X (hinge part). The other lid component 2b is the opening / closing lid component when the cup is attached.

In the case where the folded portion X (hinge portion) is manufactured by molding and processing a lid material 1 (for example, one plastic film material), usually, the portion Although it is constituted by forming a pressing groove or a partial slit having an appropriate depth, the present invention is not necessarily limited to this, and the constitution is arbitrary. The point is that the lid component 2b, which is the opening / closing lid component, is bent with the bent portion X as the fulcrum against the lid component 2a, which is the fixed lid component. (Rotation) Any shape is acceptable.

In addition, the lid 1 may be one in which the lid constituting portion 2a and the lid constituting portion 2b are manufactured separately and joined together.

The formation position of the bent portion X is also optional, but when the cup is mounted, the opening / closing side lid is configured. In order to ensure that the fixed-side lid component is held at the upper end of the cup opening when the part is opened, the area of the lid component 2a that should become the fixed-side lid component as shown in Fig. 1 It is preferable that the opening is larger than the area of the lid constituting portion 2b which should be the opening / closing side lid constituting portion.

Flanges 3a and 3b are formed on the outer periphery of the lid constituting portions 2a and 2b, respectively, to be in contact with the upper end outer portion of the mouth of the cup. The flanges 3a and 3b are preferably provided along the entire length of the outer periphery of each lid component 2a and 2b. However, the present invention is not necessarily limited thereto. You may. However, in this case, in order to prevent the leakage of the beverage in the cup, the convex portions 4 (or the step portion) and the convex portions 6 (or the step portion), which will be described later, are as large as possible in the circumferential direction of each lid component. It is preferable to provide them in

In the circumferential direction on the lower surface side of the lid body constituting portion 2a which should become the fixed side lid body constituting portion when the cup is attached, a continuous shape is provided between the flange portion 3a and the upper end of the cup mouth portion so as to be able to fit therein. A convex portion 4 (or a step portion) is formed, and a groove 5 is formed between the convex portion 4 and the flange portion 3a for fitting the upper end of the coppro portion.

It is preferable that the lid constituting part 2a to be the fixed-side lid constituting part when the cup is attached is fixed to the upper end of the cop part to a certain extent. For this reason, it is most preferable that the convex portion 4 into which the upper end portion of the cup opening is fitted between the flange portion 3a and the flange portion 3a is continuously provided along the circumferential direction of the lid constituting portion 2a as shown in FIG. It is preferable, but not limited to this, as long as the upper end of the cup opening can be sandwiched between the flange 3a and the flange 3a. Therefore, for example, as shown in an embodiment to be described later, the convex portion 4 may be provided discontinuously along the circumferential direction of the lid constituting portion. The protrusions 4 do not necessarily need to be provided over the entire length of the cover member 2a in the circumferential direction. Even when the protrusions 4 are provided continuously, as shown in FIG. It may be provided in the main area in the circumferential direction.

In addition, a part (one place) in the circumferential direction on the lower surface side of the lid body part 2b that should be the opening / closing side lid body part when the cup is attached is provided at the upper end of the cup mouth part with the flange part 3b. A convex portion 6 (or a step portion) is formed with a gap into which the portion can be fitted, and a groove 7 into which the upper end of the cup opening is fitted is formed between the convex portion 6 and the flange portion 3b. The convex portion 6 is provided at a substantially central position in the circumferential direction of the lid constituting portion 2b so that a groove 7 having an appropriate arc length is formed between the convex portion 6 and the flange portion 3b.

It is preferable that the lid constituting portion 2b, which should be the opening / closing side lid constituting portion when the cup is mounted, can be easily attached to and detached from the upper end of the cup opening when the cup is opened and closed. For this reason, the convex portion 6 into which the upper end of the cup opening is inserted between the flange portion 3b and the flange portion 3b is, as shown in FIG. , But is not necessarily limited to this. Therefore, the convex portions 6 may be provided at two or more locations or substantially the entire length in the circumferential direction of the lid component portion 2b as shown in an embodiment described later, and the configuration is arbitrary.

The two lid component parts 2a, 2b or any one of these lid component parts may include the two lid component parts 2a, 2b from the folded part X to the two lid component parts. A connecting means is provided for connecting and holding the two lid component parts in such a manner that they can be detachably engaged when the upper lid is bent so that the upper surface side is inside.

The connecting means of the present embodiment includes a concave portion 8 formed on the upper surface of one lid component (the lid component 2b in the present embodiment) and the other lid component (the lid component in the present embodiment). A projection 9 is formed on the upper surface of the portion 2 a) and is removably inserted into the recess 8. Have been. The projections 9 are removably fitted into the recesses 8 and locked in the recesses 8, so that the folded two lid body components 2a and 2b are connected in that state. , Is retained. It is preferable that the projection 9 and the recess 8 have a so-called hook-type structure so that the projection 9 inserted into the recess 8 內 is securely locked therein. The configuration is not limited to this embodiment, and various configurations can be adopted, including the embodiment described later.

6 and FIG. 6 show another embodiment of the present invention in which the configurations of the projections 4 and 6 are different from each other. In these embodiments, the convex portions 4 formed along the circumferential direction on the lower surface side of the lid constituting portion 2a are provided discontinuously at appropriate intervals. A groove or gap 5 ′ for fitting the upper end portion of the cup opening is formed between the gap and the flange 3 a. Further, in these embodiments, the convex portions 6 are formed at a plurality of positions on the lower surface side of the lid constituting portion 2b, and the upper end portion of the copro portion is fitted between the convex portions 6 and the flange portion 3b. A groove or gap 7 ′ is formed.

Since other configurations are the same as those of the embodiment shown in FIGS. 1 to 5, the same reference numerals are given and the detailed description is omitted.

FIG. 8 shows another embodiment of the present invention in which the structure of the connecting means is different. The connecting means of this embodiment is composed of one lid component (in this embodiment, lid component 2 b). Are formed on the upper surface of the plurality of slits 10 formed in the slit 10 and the other lid component (the lid component 2a in the present embodiment), and can be inserted into and removed from the slit 10. And a projection 11 to be inserted into it. A jaw 110 is formed at a lower portion of the projection 11, and the projection 11 is removably inserted into the slit 10 (any one of a plurality of slits). Since the jaw 110 is locked to the edge of the slit 10, the folded two lid component parts 2 a and 2 b are connected and held in that state. Since other configurations are the same as those of the embodiment shown in FIGS. 1 to 5, the same reference numerals are given and the detailed description is omitted.

As the connecting means, in addition to the above-described embodiment, for example, a magic tape component may be provided on the upper surface of each of the two lid component portions 2a and 2b, or an adhesive tape or the like may be provided on the upper surface of one lid component portion. Any type of adhesive may be employed, such as providing an adhesive layer made of (a pressure bar is applied with release paper when not in use).

FIGS. 9 and 10 show another embodiment of the present invention, in which the entire lid 1 has a thick structure, and the flanges 3a and 3b are also formed with appropriate thicknesses. It has been. Also, instead of the projections 4 and 6 in each of the above-described embodiments, a step 4 ′ and a step 6 ′ are formed on the lower surface side of the thick-walled lid component 2a, 2b. A groove 5〃 and a groove 7〃 are formed between the portions 3a and 3b, respectively.

FIGS. 11 to 17 show another embodiment of the present invention. Similar to the embodiment shown in FIGS. 1 to 5, the connecting means of the two lid constituting parts 2a and 2b is connected to one lid. Component

The concave portion 8 formed on the upper surface of the lid component portion 2b in the present embodiment and the concave portion 8 formed on the upper surface of the other lid component portion (the lid component portion 2a in the present embodiment). The projection 9 is configured so as to be removably inserted into the inside. However, in order to easily insert the projection 9 into the recess 8, the projection 9 and the recess 8 have different planar shapes, and The horizontal cross-sectional area of the concave section 8 (horizontal cross-sectional area of the concave section 內 space) and the horizontal cross-sectional area of the protrusion 9 (horizontal cross-sectional area of the outside of the protrusion) are also configured.

In the present embodiment, as shown in FIG. 14, the planar shape of the projection 9 is circular, and the planar shape of the concave portion 8 is a square shape with rounded corners. Such a structure When the two lid body parts 2a and 2b are bent from the bent part X so that the upper surface side of the two lid body parts is on the inside, the protrusion 9a Can be easily inserted into the concave portion 8.

The planar shapes of the projection 9 and the concave portion 8 are arbitrary. For example, as shown in FIG. 18A, the planar shape of the projection 9 is a non-circular shape (for example, the corner portion is rounded). The shape of the concave portion 8 may be circular, or the shape of both the projection 9 and the concave portion 8 may be non-circular (for example, a square shape with rounded corners).

Further, as shown in FIG. 13, a groove 90 is formed in the protrusion 9 from the upper end thereof toward the base end portion, and when the protrusion 9 is inserted into the recess 8, both sides of the groove 90 are formed. The protrusions 9 1, 9 1 are deformed to the groove side (the protrusion 9 is reduced in diameter), increasing the frictional force between the protrusion 8 and the concave surface of the recess 8, and firmly locking the protrusion 9 in the recess 8. I can do it. The depth of the groove 90 does not need to reach the base end of the protrusion 9, and when the protrusion 9 is inserted into the recess 8, the protrusion constituting portions 9 1 on both sides of the groove 90 are formed. , 91 need only be as deep as they can be deformed to some extent on the groove side.

In this embodiment, the groove 90 is formed so as to cross the projection radial direction. The shape of the groove 90 may be any shape as long as it is formed from the upper end of the protrusion 9 toward the base end portion. For example, as shown in FIG. It may be formed as follows.

It should be noted that a slit may be formed from the upper end of the projection toward the base end instead of the groove 90.

Other configurations are the same as those of the embodiment shown in FIGS. 1 to 5, and therefore, are denoted by the same reference numerals, and detailed description thereof will be omitted. FIG. 20 shows an embodiment of a concave portion 8 suitable for applying the present invention to a beverage container such as a cup. A thin portion 80 is formed linearly at the bottom of the concave portion 8. A thin straw is used to break through the thin portion 80 so that the straw can be inserted into the container. In the present embodiment, a thin portion 90 is formed at the bottom of the concave portion 8 in a cross shape.

FIG. 21 shows a preferred embodiment of the flanges 3a and 3b that abut on the upper end of the cup opening. The flanges 3a and 3b abut on the upper end of the cup opening. Is formed in a curved shape so that it can be turned inward of the lid, and its inner surface can be brought into close contact with the outer edge of the upper edge a of the coplo section, which has a circular cross section. This makes it possible to enhance the tightness of the lid and to reliably prevent leakage of liquid in the container.

The lid 1 of the present invention is provided with a cup opening in a groove or a gap between the flanges 3 a and 3 b and the protrusions 4 (or steps 4 ′) and the protrusions 6 (or steps 6 ′). By inserting the upper end aa of the part, it is detachably attached to the mouth of cup A as shown in Fig. 2 and Fig. 4 or Fig. 12 and Fig. 16, and the mouth of cup A is sealed. I do.

When drinking the beverage in Cup A, for example, lift the lid component 2b upward from the state shown in Figs. 2 and 4 or Figs. 12 and 16 and remove it from the upper end of the cup opening. (Remove the upper end of the cup opening from the groove or gap between the flange 3b and the protrusion 6 (or the step 6 ').) It is bent to the part 2a side, and the lid constituting part 2a and the lid constituting part 2b are connected by connecting means (in each of the embodiments described above, the projection 9 is inserted into the recess 8). As a result, as shown in FIG. 3 and FIG. 5 or FIG. 15 and FIG. 17, the beverage in the glass A can be drunk with the lid component 2b being in a completely opened state. Also, after drinking, When the connecting state of the connecting means is released, the closed state shown in FIGS. 2 and 4 or FIGS. 12 and 16 can be restored.

The lid of the present invention is formed into an appropriate shape (planar shape) according to the shape of the mouth of a container such as a cup, and therefore, the shape is not limited to the circular shape as in the above embodiments.

Further, in the lid 1 of the present invention, in a state as it is manufactured, the lid constituting portions 2a and 2b can be at an arbitrary angle from the bent portion X (for example, between the upper surfaces of the lid constituting portions 2a and 2b). The angle may be about 10 to 30 °).

The lid of the present invention is suitable as a lid for beverage containers such as disposable paper cups, plastic cups, and various other beverage cups, beverage bottles, and beverage pet bottles. In addition, the present invention can be applied to lids of various types of containers, for example, butter, confectionery, packaging containers for detergents, and all kinds of containers such as tupperware. Industrial applicability

The lid of the present invention can be used as a lid for beverage containers such as disposable paper cups, plastic cups, and various other beverage cups, beverage bottles, beverage pet bottles, and the like. The invention can be applied to lids of all kinds of containers such as confectionery, packaging containers for detergents, tupperware, and the like.

Claims

A thin plastic or paper lid that seals the container by being attached to the mouth of the container.

The lid is configured to be freely bendable along an arbitrary transverse line that crosses the plane, and at least a part of the outer periphery of both lid body parts bordering on the bent portion includes a container. A flange to be abutted on the outer end of the upper end is formed,

In the circumferential direction on the lower surface side of the lid constituting part, which is to be the fixed-side lid constituting part when the container is mounted, of the two lid constituting parts, there is a gap between the flange part and the upper end part of the container which can be fitted. Thus, a continuous or discontinuous convex portion or step portion is formed, and at least a part of the lower surface side of the lid constituting portion that is to be the opening / closing side lid constituting portion when the container is mounted on the lower surface side is the flange portion. A convex portion or a step portion is formed with a gap in which the upper end portion of the container can be fitted.

In the above-mentioned two lid body constituting parts or either one of the lid body constituting parts, the both lid body constituting parts are folded from the above-mentioned folded part so that the upper surface side of the both lid body constituting parts is inside. A lid for a container, comprising a connecting means for removably connecting both lid constituting parts.

A continuous convex portion or step portion is formed in the circumferential direction on the lower surface side of the lid component portion to be the fixed side lid component portion when the container is mounted, and the container is provided between the convex portion or the step portion and the flange portion. 2. The container lid according to claim 1, wherein a groove into which the upper end is fitted is formed.

A connecting means is formed on the upper surface of one of the lid component portions of the two lid component portions, and is formed on the upper surface of the other lid component portion, and is fitted into the concave portion. 3. The container lid according to claim 1, comprising a projection which is detachably engaged with the container.

A connecting means is formed on a slit formed on one of the two lid component parts and on the upper surface of the other lid component part, and is inserted into the slit. 3. The container lid according to claim 1, comprising a projection which is detachably locked by being engaged.

A thin plastic or paper lid that is attached to the mouth of the container to seal the container,

The lid is configured to be freely bendable along an arbitrary transverse line that crosses the plane, and both lid constituent parts bordering the bent portion are fitted and latched on the upper end of the container opening. As a result, the lid can be attached to the container, and at least one of the lid constituting parts, which is the opening / closing side lid constituting part, is configured to be capable of being fitted to and detached from the upper end of the container mouth,

A concave portion formed on the upper surface of one of the lid component portions, and a concave portion formed on the upper surface of the other lid component portion, wherein both lid component portions are folded from the bent portion. (C) connecting means comprising a projection which is inserted into the recess in the bent state and is removably locked;

A groove, a groove, and a slit are formed on the protrusion from the upper end toward the base end portion. When the protrusion is inserted into the recess, the protrusion is formed on both sides of the groove or the slit. A container lid characterized in that the part is deformed toward the groove or the slit side.

6. The container lid according to claim 5, wherein the groove or Z of the protrusion and the slit are formed so as to cross the protrusion radial direction.

The groove or Z of the projection and the slit are formed so as to cross the projection radial direction substantially crosswise The lid of the container according to claim 5, wherein the lid is formed.

8. A thin plastic or paper lid that is attached to the mouth of the container to seal the container,

The lid is configured to be freely bendable along an arbitrary transverse line crossing the plane, and both lid constituting portions bordering the bent portion are fitted and latched on the upper end of the container opening. Thus, the lid can be attached to the container, and at least one of the lid constituting portions serving as the opening / closing side lid is configured to be able to be fitted to and removed from the upper end of the container opening,

The projection and the recess have different plane shapes, and the horizontal cross-sectional area of the recess is larger than the horizontal cross-sectional area of the projection.

9. The container lid according to claim 8, wherein one of the projection and the recess has a circular shape and the other has a non-circular shape.

10. The container lid according to claim 9, wherein the projection has a circular flat shape and the [M] portion has a non-circular planar shape.

11. The container lid according to claim 9 or 10, wherein the non-circular shape is a square shape with a rounded corner.

12. A groove or a slit is formed on the protrusion from the upper end toward the base end, and when the protrusion is inserted into the concave portion, both sides of the groove or the slit are formed. 12. The container lid according to claim 8, 9, 10, 10, or 11, wherein the projection constituting portion is deformed toward the groove or the slit.

13. The container lid according to claim 12, wherein the groove or the projection and the slit of the projection are formed so as to cross the projection radial direction.

14. The container lid according to claim 12, wherein the groove or the slit of the projection is formed so as to substantially cross the projection radial direction.

15. At least a part of the outer periphery of both lids is formed with a flange to be in contact with the outer end of the upper end of the container opening.

The upper end of the container opening is fitted between the flange and the flange in the circumferential direction on the lower surface side of the lid constituting part that is to be the fixed lid constituting part when the container is mounted. A continuous or discontinuous convex or stepped portion is formed with a gap that can be formed, and at least a part of the circumferential direction on the lower surface side of the lid component that should be the openable lid component when the container is mounted is: The convex portion or the step portion is formed with a gap between the flange portion and the upper end portion of the container mouth portion, wherein the convex portion or the step portion is formed. 12. The lid of the container according to 12, 13, or 14.

16. A continuous convex portion or step portion is formed in the circumferential direction on the lower surface side of the lid component portion that should be the fixed side lid component portion when the container is mounted, and between the convex portion or the step portion and the flange portion. 16. The container lid according to claim 15, wherein a groove into which the upper end of the container opening is fitted is formed in the container.