JP2001151223A - Paper cup - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a paper cup which gets rid of an inconvenience in transferring contents to another container or the like. SOLUTION: The paper cup comprises a barrel formed by rolling a sectorial barrel sheet 1, a circular base plate rolled with a lower part of the barrel and an outward top curl 4 formed on an upper opening rim of the barrel, wherein a cut is provided at an upper end rim of the barrel sheet 1. Only by pressing the cup from the right and left, a V-shaped fold is formed in a specific direction on the top curl 4. This fold serves as a pour-out port when transferring a content liquid into another container having a mouth with a small diameter, so that transfer of the content liquid can be easily done.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper cup having a spout function.

[0002]

2. Description of the Related Art Conventionally, it has been impossible to form a spout when molding a paper cup itself. To make the cup have a function of a spout, plastics such as PE, PP, PET, etc. Alternatively, there was no other method but to mold the cup using a material other than paper, such as glass or ceramics.
This is because when a paper cup is molded with a current molding machine, the body paper is rolled to form a body part, the bottom paper is wound below the body part, and then the top curl is formed with a mold. This is because the top curl cannot be conveniently wound unless the opening of the cup is close to a perfect circle.

[0003]

In a conventional paper cup,
In order to maintain the strength of the cup itself, the top is curled about once or twice to form a top curled portion. In addition, usually, work such as ruled lines, perforations, embossing (debossing), etc., which cause the strength to be reduced, is avoided as much as possible. For this reason, a curled paper cup is made of thin paper (for example,
0.20 to 0.28 mm) and the paper cup itself is not significantly distorted even when the contents are fully poured. On the other hand, when the paper cup whose upper part is curled as described above is to be crushed from the left and right, it is difficult to crush as desired because of the increased strength. Therefore, when the liquid in the paper cup is transferred to another container or the like, especially when the diameter of the container or the like to be transferred is small, the liquid is spilled and does not enter well.

[0004] The present invention has been made in view of the above problems, and an object of the present invention is to provide a paper cup which eliminates the inconvenience of transferring the liquid therein to another container or the like. Is to do.

[0005]

In order to achieve the above-mentioned object, a paper cup according to the present invention has a circular bottom plate wound under a body formed by rolling a fan-shaped body paper and an upper opening edge. In the paper cup formed with an outwardly facing top curl, a cutout portion is provided at an upper end edge of the body paper.

That is, a part of the top curl, which is one of the factors for maintaining the perfect circular state of the paper cup, is provided with a portion that is less likely to be unwound by a cut portion. With such a notched portion, the portion having a small number of windings in the top curl has a weaker strength and is easily broken, whereas the portion having a smaller number of windings in the top curl can form a spout-shaped V-shaped portion. it can.

[0007]

Next, an embodiment of the present invention will be described with reference to the drawings.

First, FIG. 1 shows a body paper which is a component constituting a body part of a paper cup. The body paper 1 is stamped from a paperboard as a fan-shaped blank, and the paperboard used may be a conventional paperboard for forming a paper cup. The simplest ones have specifications of OP / ink / paper / PE, and further, there are various types according to applications such as a laminate of film layers of Al, PET, OPP, EMMA and the like. Then, when the blank is punched, a notch 2 is provided at a part of the upper edge of the body paper 1 as shown in the figure.

The paper cup of the present invention is assembled by a usual cup molding machine. That is, as shown in FIG. 2, similarly to a normal paper cup, after a fan-shaped body paper 1 is formed by rolling and pasting a body to form a body, a circular bottom plate 3 is wound below the body. The paper cup C as shown in FIG. 3 is molded through the procedure of tightening and forming the outward top curl 4 on the upper opening edge. When molded in this manner, the top curl 5 is wound once or twice in the portion without the cut portion 2, whereas the number of turns of the top curl 4 in the portion of the cut portion 2 (the portion indicated by A in FIG. 3). Is less than this. Due to the difference in the number of windings,
Only a part with low strength is formed.

As shown in FIG. 4 (A), the paper cup thus manufactured is gripped and lifted with one hand, and the cup is gently pressed on the left and right sides in this state, as shown in FIG. 4 (B).
As shown in the figure, the top curl 4 has a V-shape at the top curl 4 where the cut is formed. Therefore, if a liquid is put in the paper cup C, it can function as a spout.

In the case of the body paper 1 shown in FIG. 1, the cut portion 2 is located at the center of the blank, but it may be provided at any position above the blank. However, since the body sticking portion 5 (FIG. 3) is hard to bend, it is easier and more beautiful to bend the V-shaped portion if the portion having a small number of windings is located on the opposite side to the body sticking portion 5.

Further, the shape of the cut portion 2 is not limited to an arc shape as shown in FIG. For example, the cut portion may be V-shaped (a range up to approximately 5 mm). With such a configuration, the force is easily concentrated on a place where the number of times of top curl is small, so that the V-shaped bent portion can be formed more easily.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS At present, when a urine test is carried out in a hospital or the like, urine is collected using a urine test cup in which a scale is placed in a normal paper cup. After urine is collected in the urine test cup, it is necessary to transfer the urine to a test tube or the like in order to analyze the components. When performing this transfer operation, since the instruments such as test tubes are smaller than the diameter of the paper cup, it was very difficult to transfer without spilling the contents liquid. Therefore,
If the paper cup having the above configuration is used, as shown in FIG. 5, a V-shaped bent portion serving as a spout is formed only by slightly crushing the paper cup C from the left and right directions. The work of transferring urine N from the paper cup C to the test tube S can be performed quickly and accurately.

[0014]

As described above, in the paper cup of the present invention, a V-shaped bent portion is formed in a specific direction in the top curl by lightly pressing the left and right, so that the paper cup can be used in another small-diameter container. When the liquid is transferred, the bent portion serves as a spout, so that the transfer operation of the content liquid can be easily performed.

[Brief description of the drawings]

FIG. 1 is a development view of a body paper which is a component constituting a body part of a paper cup according to the present invention.

FIG. 2 is an explanatory view for assembling the paper cup according to the present invention.

FIG. 3 is a perspective view of a paper cup according to the present invention.

FIG. 4 is an explanatory diagram showing deformation when a paper cup is gripped by hand and pressed from right and left.

FIG. 5 is an explanatory view showing a state in which a content liquid of a paper cup is transferred to a test tube.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Body paper 2 Cut part 3 Bottom plate 4 Top curl 5 Body sticking part C Paper cup S Test tube N Urine

Claims (2)

[Claims] An upper edge of a paper cup in which a circular bottom plate is wound below a body formed by rolling a fan-shaped body paper and an outward top curl is formed at an upper opening edge. A paper cup characterized by a notch provided in the paper cup. 2. The paper cup according to claim 1, wherein the cut portion has a V-shape.