WO2020144805A1

WO2020144805A1 - Lid

Info

Publication number: WO2020144805A1
Application number: PCT/JP2019/000499
Authority: WO
Inventors: 信吾菅沼; 豊小野瀬; 佑松原
Original assignee: 北越パッケージ株式会社
Priority date: 2019-01-10
Filing date: 2019-01-10
Publication date: 2020-07-16

Abstract

A lid (3) according to the present invention prevents the content of a cup (1) from being spilled during the storage, transfer, or the like and it is easy to be removed when drinking or the like. The lid (3) for covering a cup body (2) of the cup (1) comprises: an inner lid (8) that is adhered to an edge (2b) of the opening of the cup body (2) and includes a first opening portion (11); and an outer lid (9) that is joined with the inner lid (8) with a strong adhesion section, covers a portion including the first opening portion (11) and a second opening portion with a weak adhesion section (9b), and can uncover the portion including the first opening portion (11) and a second opening portion. Drinking can be performed through the first opening portion (11) after the first opening portion (11) is opened by the outer lid (9).

Description

lid

The present invention relates to a lid used for a container body such as a cup.

Conventionally, in cafes, coffee shops, convenience stores, etc., as a container for coffee, tea, etc. that is used for taking out, coffee in the store, drinking, etc., it is a lightweight and low-cost paper cup or plastic that is convenient to carry. Cups and the like are widely used. Moreover, in a state where these cups are filled with a drink, a plastic lid is attached with a top seal by, for example, an automatic machine. In addition, the clerk puts on the lid and the purchaser receives the cup with the lid. Alternatively, the purchaser receives the cup at the counter, and the purchaser himself puts the drink in the cup and carries it with the lid.
Since it is necessary to attach a lid to the cup in a watertight manner so as not to spill the drink inside, a cup made of plastic that is easy to ensure watertightness is often used in consideration of safety.

However, although the plastic lid attached to the cup is highly watertight, it requires a lot of force to open the lid when drinking, which is troublesome. Moreover, if the plastic lid is finely crushed and discharged into the sea in the process of being disposed of after use, it is a cause of causing marine pollution as a micro plastic.

Japanese Patent Laid-Open No. 09-2516

The present invention has been made in view of the above-mentioned problems, and provides a lid that prevents the contents from spilling when carrying or storing the container and that is easy to remove when drinking or eating. The purpose is to

The lid according to the present invention is a lid that can be attached to the opening of the container body, and includes an inner lid that is adhered to the edge of the opening of the container body and forms a first opening, and a lid that is connected to the inner lid. An outer lid capable of sealing one opening and opening a portion having the first opening.
According to the present invention, the lid of the container body is adhered to the edge portion of the opening with the inner lid, and the first opening is sealed with the outer lid adhered to the inner lid so that the container body is liquid-tightly sealed. Since the outer lid is partially opened and the portion of the inner lid having the first opening is exposed, drinking and eating are possible.

The outer lid has a strong adhesive portion that adheres to the portion of the inner lid excluding the first opening portion with high strength, and a weak adhesive portion that adheres to the portion having the first opening portion such that it can be opened. Is preferred.
It is possible to open the weakly adhesive portion of the outer lid with the inner lid and fold it at the boundary with the strong adhesive portion so as to drink or eat from the first opening of the inner lid.

Further, it is preferable that the inner lid is made of paper and both sides thereof are coated with resin, and the outer lid is made of paper and the inner surface of the inner lid side is coated with resin.
Since the inner and outer lids are mostly made of paper, the load on the environment is reduced at the time of disposal after use, and the calories burned during incineration do not generate harmful gas.

The resin is preferably biodegradable plastic.
Since the lid is made of paper or biodegradable plastic, it is possible to reduce adverse effects on the environment when it is discarded.
Alternatively, the outer and inner lids may be made of biodegradable plastic, bioplastic or general purpose plastic.
The cost is low when the outer lid and inner lid are made of biodegradable plastic, bioplastic or general-purpose plastic.

Further, the outer lid is formed with a first engaging groove that can be engaged with the edge portion of the opening of the container body, and the first opening portion opened by engaging the first engaging groove with the edge portion. May be closed.
After opening the portion of the outer lid including the first opening, the first opening of the inner lid can be closed by engaging the first engaging groove of the outer lid with the edge of the inner lid. It is possible to suppress leakage of contents from the container and temperature changes.

A second engagement groove is formed on the outer lid at a position facing the first engagement groove, and the first engagement groove or the second engagement groove is engaged with the protrusion of the outer lid to form a first engagement groove. The opening may be opened.
With this, with the first opening of the inner lid being opened, the protrusion of the outer lid can be fixed by being locked in the first engaging groove or the second engaging groove that is opposed to the protruding portion of the outer lid. do not become.

In addition, the inner lid may be provided with a second opening separately from the first opening, and the outer lid may have a weak adhesive portion that is openably adhered to the inner lid at the portion having the second opening. Good.
The portion of the outer lid including the second opening can be opened because it is weakly bonded to the inner lid with low strength, and the portion of the outer lid including the second opening can be opened. It becomes possible to expose and drink.

Further, a cutout and/or a hole for locking at least one of the muddler and the straw may be formed in a portion of the outer lid projecting outward from the container body.
By locking at least one of the muddler and the straw in the notch and/or the hole of the outer lid, it becomes easy to carry the container.

According to the lid of the present invention, since the opening of the container body can be liquid-tightly sealed by the double structure of the outer lid and the inner lid, it is possible to prevent spillage during transportation. Moreover, the opening operation is easy because it can be used for drinking, eating, etc. by partially opening the outer lid and exposing the first opening without removing the entire lid when drinking.

FIG. 6 is a perspective view of a cup according to an embodiment of the present invention. FIG. 2 is a sectional view taken along the line AA of the cup with a lid shown in FIG. 1. It is a back view of a lid. It is explanatory drawing which shows the laminated structure of the material of a lid. It is a perspective view of the state where the outer lid was separated from the inner lid of the cup. It is a perspective view of the cup which opened the outer lid and was in a drinkable state. It is explanatory drawing which shows another locking structure in the state which opened the outer cover. It is a perspective view of a state where a muddler and a straw are engaged with an outer lid. It is a perspective view which made the outer lid engage with the edge of the cup body.

Hereinafter, a cup lid according to an embodiment of the present invention will be described with reference to FIGS. 1 to 9.
As shown in FIGS. 1 and 2, a cup 1 which is an example of a container according to the present embodiment is a paper container in which a drink or contents such as coffee or tea is placed. The cup 1 has a cup main body 2 (container main body) made of, for example, paper, and a lid 3 capable of liquid-tightly sealing the opening 2 a of the cup main body 2. The cup body 2 has, for example, a substantially disk-shaped bottom portion 5 and a side surface portion 6 forming a substantially frustoconical peripheral surface. The side surface portion 6 has a tapered cylindrical shape whose diameter gradually increases from the bottom portion 5 side toward the opening 2a, and the inner surfaces of the paper-made bottom portion 5 and the side surface portion 6 are coated with resin.

The edge 2b is formed outside the opening 2a at the upper end of the side surface portion 6 so as to be curved in a substantially arcuate cross-section over the entire circumference, and the strength is reinforced, and further, coffee, tea, etc. introduced into the inside The heat transfer of the contents is suppressed. The lower end portion 6a of the side surface portion 6 projects downward from the bottom portion 5 to reinforce the strength and to make it difficult to transfer heat to the lower portion of the bottom portion 5.

As shown in FIGS. 2 and 3, the lid 3 is heat-sealed to the edge portion 2b of the opening 2a of the cup body 2 and is liquid-tightly attachable to the inner lid 8, and the outer lid is adhered to the opening 2a. And an outer lid 9 having an outer diameter larger than that of the inner lid 8 are formed in two layers. The inner lid 8 has a substantially disc shape, and the outer lid 9 has

protrusions

9c, 9d, 9e, and 9f, which will be described later, formed around the disc shape at intervals of 90 degrees, for example. Moreover, the inner lid 8 and the outer lid 9 are laminated and adhered so that the circular portions are substantially concentric.
The outer lid 9 is made of paper and has an inner surface coated with a resin. The inner lid 8 is made of paper, and its inner surface and outer surface are coated with resin.

An example of the material of the lid 3 is shown in FIG. In the lid 3 shown in FIG. 4, the outer lid 9 has a two-layer structure of waterproof paper and PE (polyethylene) on the inner surface thereof. The inner lid 8 has a three-layer structure of PE, waterproof paper, and PE. PP (polypropylene) or the like may be used instead of PE. It is preferable to use a biodegradable plastic resin material as the resin material, but it is not always necessary to use the biodegradable plastic material. The cup body 2 may be made of the same material as the outer lid 9 and may have the same structure.
As the resin material on the front and back surfaces of the paper of the inner lid 8 and the resin material covering the paper of the outer lid 9, a plant-derived resin material or a petroleum-derived resin material can be adopted as the biodegradable plastic. However, the resin material of the cup body 2, the inner lid 8 and the outer lid 9 is not limited to biodegradable plastics, and various plastics such as non-biodegradable bioplastics and general-purpose plastics can be adopted. ..

The inner lid 8 has two large and small holes formed by punching or the like, as shown in FIGS. 3 and 5, for example. For example, the large hole is the first opening 11 and the small hole is the second opening 12. Both the first opening 11 and the second opening 12 are holes that can be used for drinking, and either the first opening 11 or the second opening 12 can be selected and used according to the preference of the user. is there.
Since the first opening 11 has a large hole diameter, additives such as milk and sugar can be introduced into the cup body 2. A straw 13 shown in FIG. 8 can be inserted into the second opening 12 having a small hole diameter for drinking, or a mudler (stirring rod) 14 can be inserted into the first opening 11 or the second opening 12. It is possible to stir. It should be noted that either the first opening 11 or the second opening 12 may be used to insert the milk, sugar, the straw 13 or the muddler 14.

The outer lid 9 is formed with a strong adhesive portion 9a made of, for example, a belt-shaped layer that reaches the outer peripheral edge portions of both ends with a predetermined width in the central portion of the inner surface on the inner lid 8 side. The strong adhesive portion 8a on the outer surface of the inner lid 8 that faces the strong adhesive portion 9a is formed between the first opening 11 and the second opening 12, and is formed of a belt-shaped linear portion like the strong adhesive portion 9a. ing. Therefore, the strong adhesive portion 9a of the outer lid 9 bonded to the strong adhesive portion 8a of the inner lid 8 is connected with high strength so that it cannot be easily separated.

Areas on both sides of the inner lid 8 other than the strong adhesive portions 8a are weak adhesive portions 8b, and are opposed to the weak adhesive portions 9b provided on both side areas of the strong adhesive portion 9a of the outer lid 9. Therefore, with the strong adhesive portion 9a and the weak adhesive portion 9b of the outer lid 9 bonded to the strong adhesive portion 8a and the weak adhesive portion 8b of the inner lid 8 respectively, the first opening 11 and the second opening of the inner lid 8 are formed. The periphery of the portion 12 is liquid-tightly adhered by the weakly adhered

portions

8b and 9b so that the drink inside does not leak out.
The outer lid 9 is easily peeled off from the weakly bonded

portions

8b and 9b as compared with the strongly bonded portion 9a. Therefore, at the time of drinking or the like, one weak adhesive portion 9b of the outer lid 9 can be peeled off and bent at the boundary with the strong adhesive portion 9a to expose the first opening 11 or the second opening 12 for drinking or the like. .. Note that the weakly bonded portion 9b cannot be rebonded once it is peeled off. The strong

adhesive portions

8a and 9a are made of, for example, a heat seal adhesive, and the weak

adhesive portions

8b and 9b are made of, for example, a pseudo adhesive. The adhesive may be applied to at least one of the outer lid 9 and the inner lid 8.

As shown in FIG. 1 and FIG. 5, in the outer lid 9, a substantially semicircular first protrusion 9c and a second protrusion 9d are opposed and protrude in an extended outer peripheral region of the strong adhesion portion 9a. A first cutout 16 having, for example, a substantially U-shaped or circular hole is formed in the first protrusion 9c, and a straw 13 can be engaged and held in the first cutout 16. For example, a substantially U-shaped second notch 17 is formed in the second protrusion 9d, and the muddler 14 can be engaged with and held by the second notch 17. The first notch 16 and the second notch 17 may not be provided.

In the outer lid 9, substantially semicircular third protrusions 9e and fourth protrusions 9f are formed so as to project in opposing regions sandwiching the strong adhesive portion 9a. The third protrusion 9e and the fourth protrusion 9f are provided with, for example, substantially linear first engagement grooves 19 and second engagement grooves 20 extending in a direction substantially parallel to the strong adhesive portion 9a. The first engagement groove 19 and the second engagement groove 20 have a shape in which both ends in the longitudinal direction have wide diameter expansion holes. Therefore, the edge portion 2b of the cup body 2 can be penetrated into the first engagement groove 19 and the second engagement groove 20 to project to the opposite side (see FIG. 9).

As a result, the third protrusion 9e and the fourth protrusion 9f of the outer lid 9 can be locked to the edge 2b of the cup body 2. After opening one or both of the weakly adhered portions 9b of the outer lid 9, they are closed again and the third engagement portion 9e and the first engagement groove 19 and the second engagement groove 20 of the fourth protrusion portion 9f are formed on the edge portion 2b. By locking, it is possible to suppress the leakage of the drink from the first opening 11 or the second opening 12 of the inner lid 8 and the temperature decrease.
The cup 1 is a top seal type in which the inner lid 8 of the lid 3 is adhered and sealed to the edge portion 2b of the opening 2a of the cup body 2 by heat sealing or the like. Moreover, in the lid 3 mounted on the cup body 2, the outer lid 9 is liquid-tightly bonded to the inner lid 8 by the strong adhesive portion 9a and the weak adhesive portions 9b on both sides thereof.

With the outer lid 9 adhered to the inner lid 8 of the lid 3 by the strong adhesive portion 9a and the weak adhesive portion 9b, the first notch 16 and the second notch 17 are formed at the outer position of the inner lid 8. The mating groove 19 and the second engaging groove 20 are formed at positions overlapping the edge portion 2b of the cup body 2 to which the inner lid 8 is adhered.
When the purchaser puts milk, sugar, or the like into the cup body 2 at the time of purchase, the third protrusion 9e on the weakly bonded portion 9b side of the lid 3 is opened and the first opening 11 is opened. Just expose it. At this time, in order to prevent the purchaser from unintentionally opening the fourth protrusion 9f, it is preferable to display "Milk, sugar input port" or the like on the third protrusion 9e.

The cup 1 with the lid 3 according to the present embodiment has the above-mentioned configuration, and a method of mounting the lid 3 in the opening 2a of the cup body 2 will be described next.
In the lid 3, the strong adhesive portion 9a of the outer lid 9 is bonded to the strong adhesive portion 8a of the inner lid 8 with high strength in advance, and the weak adhesive portion 9b of the outer lid 9 is bonded to the weak adhesive portion 8b of the inner lid 8 with low strength. It is glued. Then, after the drink such as coffee or tea is put into the cup body 2 through the opening 2a, the inner lid 8 of the lid 3 is pressure-bonded to the edge portion 2b of the opening 2a to be heat-sealed and liquid-tightly sealed.
At this time, the lid 3 is attached to the cup body 2 automatically by, for example, an automatic machine (not shown) at a store. In this case, the store clerk or the purchaser fits the straw 13 or the muddler 14 into the first cutout 16 and the second cutout 17 of the outer lid 9, so that the purchaser can carry the cup 1 with one hand.

Next, a method of using the purchaser to drink a drink such as coffee or tea from the cup with a lid 1 in which the drink is enclosed will be described.
As shown in FIG. 1, when the purchaser puts milk or sugar into the drink in the cup body 2 on the spot with the lid 3 attached to the cup body 2, first, one of the outer lids 9, for example, The weakly bonded portion 9b on the side of the three protrusions 9e is opened to expose the first opening 11 of the inner lid 8.

Then, milk or sugar is added through the first opening 11, and the drinker is stirred by the muddler 14 through the first opening 11. Then, the first opening 11 may be closed by the third protrusion 9e of the outer lid 9, and the first engagement groove 19 may be engaged with the edge 2b of the cup body 2 (see FIG. 9). In this case, the first opening 11 cannot be liquid-tightly sealed, but since it is covered with the outer lid 9, it is possible to suppress the leakage of the drink and the temperature decrease. Even if the fourth protrusion 9f is opened by mistake and the second opening 12 is exposed, after the milk or sugar is introduced from the second opening 12 and stirred by the muddler 14, the fourth protrusion 9f is opened. The second engaging groove 20 may be sealed and engaged with the edge portion 2b.

Next, when the purchaser drinks the drink in the cup 1, the third protrusion 9e of the outer lid 9 and the weakly bonded portion 9b are opened to expose the first opening 11 of the inner lid 8. As shown in FIG. 6, by opening the third protrusion 9e of the outer lid 9 and the weakly bonded portion 9b, the outer lid 9 can be opened and bent up to the strongly bonded portion 9a. Then, by bending the first protrusions 9c and the second protrusions 9d on both sides of the outer lid 9 to the lower side surface portion 6, the portion of the weak adhesion portion 9b including the first protrusions 9c of the outer lid 9 is removed. Fixed.
As a result, the portion of the weakly bonded portion 9b including the first protrusion 9c of the outer lid 9 does not fluctuate and interfere with drinking, so that the drink in the cup body 2 from the first opening 11 of the inner lid 8 does not interfere. You can drink. When the purchaser prefers the relatively small-diameter second opening 12 of the inner lid 8 as a drinking mouth, by opening the weakly adhesive portion 9b including the fourth protrusion 9f of the outer lid 9 to the strong adhesive portion 9a. The second opening 12 can be exposed. Then, similarly to the above, by bending the first protrusion 9c and the second protrusion 9d on both sides of the outer lid 9 to the lower side surface portion 6, weak adhesion including the fourth protrusion 9f of the outer lid 9 is performed. The portion of the portion 9b is fixed and can be drunk from the second opening 12.

Another drinking example of the cup 1 will be described with reference to FIG.
In FIG. 7, by opening the third protrusion 9e and the weakly bonded portion 9b of the outer lid 9, the outer lid 9 can be opened and folded up to the boundary with the strong adhesive portion 9a, and the first opening 11 of the inner lid 8 can be opened. Is exposed. Then, the fourth protrusion 9f is also opened and opened up to the boundary with the strong adhesive portion 9a and bent. Next, the tip of the third protrusion 9e is inserted into the second engagement groove 20 of the fourth protrusion 9f and locked. As a result, the portion of the weakly bonded portion 9b including the third protrusion 9e of the outer lid 9 can be locked in the second engagement groove 20, so that drinking from the first opening 11 is not hindered. In this case, if the notches or the like are formed on both sides of the third protrusion 9e so that the third protrusion 9e is engaged with the second engaging groove 20, the engagement can be performed more reliably.
The tip of the fourth protrusion 9f may be locked in the first engagement groove 19 of the third protrusion 9e. Also, when drinking from the second opening 12, the weak adhesive portion 9b including the fourth protrusion 9f may be opened and locked in the first engagement groove 19 in the same manner.

At the time of discarding the cup 1 after use, since the cup body 2 and the lid 3 are made of paper and coated with a resin such as PE, the components of the paper are large, and even if the resin is not a biodegradable plastic, it is given to the environment. The adverse effect can be reduced.
When the resin such as PE is biodegradable plastic, it can be burned together with the paper. Further, even when it is discarded, it does not flow out as microplastic in the process of disposal because it is biodegraded into water and carbon dioxide after disposal. Therefore, the paper and the resin can be discarded together without being separated. Moreover, it does not adversely affect the environment.

As described above, according to the cup body 2 and the lid 3 according to the present embodiment, at the time of purchase, the inner lid 8 of the lid 3 can be heat-sealed to the edge portion 2b of the opening 2a of the cup body 2 for liquid-tight sealing, At the time of drinking, the first opening 11 or the second opening 12 can be exposed by opening only the weakly adhesive portion 9b of the outer lid 9 for drinking.
Further, when the cup 1 is discarded after drinking, since the cup body 2, the outer lid 9 and the inner lid 8 are made of paper coated with resin such as PE, there are many paper parts and the resin is not biodegradable plastic. Can reduce adverse effects on the environment. Further, when the resin such as PE is a biodegradable plastic, it can be burned together with the paper, and the calories burned at the time of incineration do not generate harmful gas. Further, even when it is discarded, since it is biodegraded after the disposal, it can be discarded together with the paper without separation. Moreover, it does not cause marine pollution and has no adverse effect on the environment.

Although the lid 3 of the cup 1 according to the embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment, and can be appropriately modified without departing from the spirit of the present invention. Although a modified example of the present invention will be described below, the same or similar members and portions as those of the above-described embodiment are designated by the same reference numerals, and the description thereof will be omitted.

In the above-described embodiment, the inner lid 8 is provided with the first opening 11 having a relatively large diameter and the second opening 12 having a relatively small diameter on both sides with the strong adhesive portion 8a interposed therebetween. The diameter of the second opening 12 may be large, or only one of them may be formed.
Further, in the above-described embodiment, the case where the contents are warm drinks has been described, but it goes without saying that the present invention can be applied to cold drinks and the like. At that time, when discarding the leftovers after drinking, the ice contained in the cup body 2 is thrown into the waste container through the first opening 11 or the second opening 12 of the inner lid 8 integrally or separately with the cold drinking liquid. be able to.

In the cup 1 according to each of the above-described embodiments, the cup body 2, the inner lid 8 and the outer lid 9 are made of paper and coated with resin. However, in the present invention, the cup body 2, the inner lid 8 and the outer lid 9 are not limited to being made of paper, and can be made of biodegradable plastics derived from plants or petroleum, bioplastics or general-purpose plastics. it can. Alternatively, the paper cup body 2, the inner lid 8 and the outer lid 9 may be impregnated with a resin such as PE or PP to obtain waterproofness and be integrated.

The present invention is a lid that is attached to an opening of a cup body, and includes an inner lid that is attachable to the opening of the cup body and has at least a first opening portion, and a portion that is attached to the inner lid and includes the first opening portion. And an outer lid that can be opened. By bonding this lid to the cup body, it is possible to prevent the contents from spilling when carrying or storing, and to easily remove the outer lid when drinking. In addition, when incinerated, there are few calories burned and no harmful gas is generated. Further, it is possible to reduce the influence on the environment at the time of disposal.

1 Cup 2 Cup Main Body 2a Opening 2b Edge 3 Lid 8

Inner Lids

8a,

9a Strong Adhesion

8b, 9b Weak Adhesion
9 Outer lid 11 First opening 12 Second opening 13 Straw 14 Muddler 16 First notch 17 Second notch 19 First engaging groove 20 Second engaging groove

Claims

A lid that can be attached to the opening of the container body,
An inner lid that is adhered to the edge of the opening of the container body and forms a first opening,
An outer lid that is connected to the inner lid and that seals the first opening and that can open the portion having the first opening;
A lid characterized by having.
The outer lid has a strong adhesive portion that adheres to the portion of the inner lid excluding the first opening portion with high strength, and a weak adhesive portion that adheres to the portion having the first opening portion so as to be openable. The lid as set forth in claim 1.
The lid according to claim 1 or 2, wherein the inner lid is made of paper, and both sides thereof are coated with resin, and the outer lid is made of paper, and inner side of the inner lid side is coated with resin.
The lid according to claim 3, wherein the resin is a biodegradable plastic.
The lid according to claim 1 or 2, wherein the outer lid and the inner lid are made of biodegradable plastic, bioplastic, or general-purpose plastic.
The outer lid is formed with a first engaging groove engageable with an edge of the opening of the container body, and the first opening opened by locking the first engaging groove with the edge. The lid according to claim 1, wherein the lid is closed.
A second engagement groove is formed in the outer lid at a position facing the first engagement groove, and a protrusion of the outer lid is locked in the first engagement groove or the second engagement groove. The lid according to claim 6, wherein the first opening is open.
The inner lid is provided with a second opening separately from the first opening, and the outer lid has a weak adhesive portion that is openably adhered to the inner lid in a portion having the second opening. The lid according to any one of claims 1 to 7.
9. A notch and/or a hole for locking at least one of a muddler and a straw is formed in a portion of the outer lid projecting outward from the container body, according to any one of claims 1 to 8. lid.