JP2005343557A - Lid of paper-made cup - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lid for use in a paper-made cup as a lid for a paper-made packaging container, by which a content liquid can be taken while the container and the lid are fitted with each other, the hygiene of a drinking port can be protected, sealing performance for the content liquid is high, and a cost can be reduced by mass production. <P>SOLUTION: The lid fitted over a paper-made cup container for closure has the inner diameter of a side hanging part hanging from a top plate of the lid as the same as the outer diameter of a flange at the upper end of the cup container. A recessed line with a depth and a width conforming to the diameter of the flange is formed at a position for holding the side hanging part and the flange to serve to seal and prevent a drop. The top plate of the lid includes an outlet hole for the content liquid and a vent hole, the outlet hole and the vent hole are opened and closed, and at the same time a contact surface with the lips is sealed with beverage, thereby providing the lid with a clean seal applied. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

The present invention relates to a lid of a paper packaging container.

Conventionally, paper packaging containers and paper cups have become widespread and widely known. However, beverage cups made of plastic are widely used for the lid, and almost no paper products are found, and there are few in the literature. In literature, for example, Japanese Patent Laid-Open No. 8-183550 discloses prevention of paper lid warpage, and Japanese Patent Laid-Open No. 11-171222 describes a lid that opens and closes a top plate while the lid is fitted to a cup. Has been.
JP-A-8-183550 JP-A-11-171222 JP2002-211161 Registration number 3080882 Japanese Utility Model Publication No. 5-95856

Many of the lids described in Patent Documents 1 to 5 described above relate to containers for viscous products such as ice cream and jam, and there are differences in hygiene regarding leakage and usage in application for liquids. The present invention solves this problem because it cannot be used.

Recently, there are increasing restrictions on the use of plastic products from the standpoint of environmental problems, etc., and products with environmentally friendly materials are desired and tend to be obligatory. The time has come to make.

Regarding restrictions on plastic products, a provision for separate disposal has been stipulated, in which paper cup containers and plastic lids are separated and disposed. However, manual labor is required for the resolution of the sorting, and it is an expense related to the labor cost. Therefore, in a store that uses a large amount of paper, a paper lid is desired from the standpoint of avoiding the expense.
However, for the practical use of paper lids, the idea is complicated, technically the manufacturing process is large and a large amount of money is required, so the price increases due to the increase in cost, and it must be handed over to simple plastics. It has become.

The present invention is easy to manufacture regardless of whether it is made of paper or plastic. Therefore, the manufacturing cost can be kept low, and the current outlet, that is, the drinking mouth can be kept hygienic and clean. It proposes a lid with high use value and added value with equipment that is environmentally friendly and at the same time friendly to the drinker.

The lid of the present invention is a lid of a paper cup container having a circular opening, and is provided with a flange at the upper end of the cup opening, and has a side hanging portion inner diameter depending from the outer peripheral edge of the top plate of the lid, and a paper cup. The outer diameter of the flange of the container is formed to be the same diameter, and if the lid and the flange are closely fitted and separated by close contact, a frictional resistance is generated, making separation and falling difficult.

When the lid of the present invention is made of paper, it is a combustible material, so that it can be discarded and incinerated as combustible waste at the time of disposal. For this reason, the labor cost for separation is not required and is not expended, and the use cost is low.
Paper or plastic may be selected depending on the purpose of use.

If the subject of the lid of the present invention is a paper that is more favorable in terms of the living environment, even if it is made of paper, the sealing performance is as effective as that of a plastic lid, and there is no concern about leakage of the content liquid even in experiments with prototypes. Has been proven.
In addition, regarding the durability of the paper lid, the paper cup itself can be used only for a short hot or cold beverage with a one-time use of coffee or juice filled with the cup. However, since the drinker himself who drinks with a paper cup also has an understanding and interest in the internal solution, it does not easily leak out.

Recently, the necessity of the lid and the trend of usage have changed, and it was a custom to remove the lid from the cup container and drink from the container, but nowadays it can be opened on the top plate of the lid with the lid fitted. However, it is now more common to drink without placing a straw through the hole in the top plate of the lid, and drinking directly with the mouth of the lid. It is becoming a way.

The present invention is a necessary invention for dealing with the latest situation, and in the past, a lid was developed to prevent external contamination from the viewpoint of maintaining hygiene inside the container. Maintaining hygiene on the upper side has become important.
Even various plastic lids that are widely used at present, a small seal that can be peeled off is attached to the liquid outflow hole provided on the lid. The hygiene and cleanliness is completely neglected. In other words, the beverage is put directly on the upper surface of the lid that is estimated to have a high unsanitary rate.
The present invention expands the sealing space, uses the seal as a clean seal, and sticks it over a wide range where the lip of the beverage comes into contact from the periphery of the outflow hole on the top plate of the lid body, and transports and wears the lid It is characterized by providing a hygienic and clean drinking mouth without preventing contamination that may occur during sales.

The seal is used as a clean seal, and at the same time, it is characterized by the blockage of the vent hole that supports the outflow of the liquid content of the paper cup container by sticking, and the action of peeling and activating the vent hole.

The lid of the paper cup container of the present invention is easy to manufacture because it has a structure in which the molds are integrally formed, and it is possible to increase production efficiency and reduce costs in mass production.

The lid of the paper cup of the present invention is a short-time compatible product that drinks the beverage liquid in a cup, and is a special use product that ends with a one-time durability and does not require preservability. Withstands short-time use, maximizes usage, simplifies manufacturing process to a minimum, completes at a minimum cost, and provides the cleanest and most sanitary drinking lid with a mouth-watering beverage lid It is a thing.

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

FIG. 1 is a plan view of a lid 2 of a paper cup container according to the present embodiment. The lid 2 is composed of a top plate portion and a side hanging portion 3 that hangs down, and is adapted to hold the flange 4 at a position along the outer periphery of the top plate portion 2 to hold the flange 4 of the cup container 1 with the side hanging portion 3. A recess 6 having a width and a depth to be provided is provided to sufficiently fit the container 1 and the lid 2.
The top plate portion 2 is provided with a content liquid outflow hole 5 and a notch, and is provided with a vent hole 8 that helps outflow. Assuming that a user of a paper cup with a lid uses a straw, an outflow hole 5 having a large and small allowance for the diameter of the straw and combined with a notch and a through hole is created to enable the use of the straw.

FIG. 2 is a cross-sectional view of the lid 2. A recess 6 is formed along the outer periphery of the top plate 2 at a position sandwiching a side hanging portion 3 hanging from the outer peripheral edge of the lid top plate portion 2 in FIG. 1 and a circular flange 4 located on the upper end of the cup container 1 from the inside of the side hanging portion 3. It is provided by pressing, and a vent hole 8 for adjusting the air pressure for outflow of the content liquid and an outflow hole 5 are provided.

FIG. 3 shows a paper cup container 1. The cup container 1 is formed in an inverted conical cylinder shape, and the upper end of the mouth portion is formed into a circular flange 4.

FIG. 4 is a cross-sectional view of the completed use state in which the lid 2 and the paper cup container 1 according to the embodiment of the first embodiment are fitted. The side hanging portion 3 hanging from the top plate portion 2 of the lid 2 and the flange 4 at the upper end of the paper cup container 1 are fitted to close the container 1 and provide the function of the lid 2. In the fitting for closing, the inner wall of the side hanging part 3 that hangs down from the top plate part 2 and the outer end of the flange 4 of the container 1 are formed to have the same diameter. Do not fall off. Further, the top plate 2 has a depth suitable for the diameter of the flange 4 at a position where the side hanging portion 3 and the flange 4 are sandwiched from the opposite side, and a recess 6 that sandwiches the flange 4 is provided by pressing. The outer wall is in close contact with the flange 4, and the function of fitting the lid 2 is completed by preventing the separation and dropping due to the generation of frictional resistance.
This drop-off prevention function simultaneously prevents leakage of the content liquid. First, the flange 4 outer end and the side wall 3 inner wall are in close contact. Second, the flange 4 upper end and the top plate portion 2 inner plate are in close contact. In addition, the tight contact between the inner end of the flange 4 and the outer end of the concave strip 6 is tightly and firmly prevented from leaking.

Since the groove 6 according to the present invention has a weak depth, the wrinkles are also weak and do not hinder the sealing performance. In particular, the wrinkle is related to the area of the bent tip, that is, the length and width of the tip, and the wrinkle becomes larger and deeper due to the long and wide area.

FIG. 5 shows a second embodiment of the lid 2 according to the present invention. A clean seal 7 is affixed to the plan view of the lid 2 shown in the first embodiment. The first purpose of the clean seal 7 is to attach and close the lid 2 to the paper cup 1 and to open and close the outflow hole 5 for drinking with the lid 2 closed.
If the seal 7 is peeled off, the outflow hole 5 is exposed and drinkable.

The second is a beverage method in which the paper cup 1 is closed while the paper cup 1 is closed with the lid 2. In the beverage, the lip comes into contact with the top surface of the lid 2 where the outflow hole 5 of the lid 2 is located and the side hanging portion. And to keep it clean.
Hygiene of beverage supplies is an important issue, and hygiene and cleanliness of the paper cup 1 is stipulated by legal production regulations, and the hygiene of the lid 2 is also true, but the current situation is unclear. It is fitted to the cup through many routes from the manufacturing factory to the use site, but it is easy to be contaminated only by that process, but at this time there are no cup sellers and purchase users feeling anxious, but none It is left with the theory that there is no way to do it, and drinks with the lips directly applied to the sanitary defenseless lid 2. The present invention provides a clean and sanitary drinking mouth of the lid 2 characterized by a clean seal 7 that attaches a seal that is easy to peel off and covers the periphery of the outflow hole 5 with emphasis on hygiene. .

The third purpose is to open and close a vent hole 8 for adjusting the air flow, which is provided in the area of the clean seal 7 around the outflow hole 5 of the lid 2 and supports the outflow of the content liquid. When the lid 2 is fitted to the paper cup 1 and the clean seal 7 is applied to close the vent hole 8, the inside of the container is sealed, and the outflow movement of the content liquid is weakened, and the leakage of the liquid stagnates. If the clean seal 7 is peeled off, the air flows and the liquid flows out, and the effects of the lid 2 and the clean seal 7 are exhibited.

  The top view of the lid | cover of this invention.   Sectional drawing of the lid | cover of this invention.   Sectional drawing of a paper cup container.   Sectional drawing which shows the state which fitted the lid | cover to the paper cup container.   The top view which shows the concave of a lid | cover and a clean seal | sticker.   Sectional drawing which stuck the clean seal on the lid of the container.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Paper cup container 2 Lid 3 Side drooping part 4 Flange 5 Outflow hole 6 Concave 7 Clean seal 8 Vent hole

Claims (3)

A lid that fits and closes a paper packaging container formed with a circular flange at the upper end of the mouth, and has a side hanging portion that hangs down from the outer edge of the top plate portion of the lid. A lid characterized in that the outer diameter of the flange of the packaging container is the same diameter and is in close contact and is integrally molded. The lid according to claim 1, wherein a recess is provided at a position along the outer periphery of the circular top plate portion of the lid so as to sandwich the flange of the paper packaging container with the side hanging portion. The top plate is equipped with an outflow hole and a vent hole that combine a break through which the content liquid flows out and a through-hole, and with an easily peelable seal of a size suitable for the lip contact surface of the drinker, and opening and closing of the outflow hole and the vent hole The lid according to claim 1, wherein the lid is a clean holding seal.

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