JP3060579U - Food paper containers - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To improve the sealing property between a lid and a container body of a paper container for containing a food material, and realize a food paper container that can be repeatedly opened and used. SOLUTION: A ring is provided on a top curl portion of a paper container, an outermost edge of the ring is fitted into an inner peripheral groove of a lid, and a rib and / or a circumferential protruding edge which comes into contact with an upper surface of the ring are provided on an inner surface of the lid. .

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a food paper container, and particularly to a food paper container for storing powdered food.

[0002]

[Prior art]

 Conventionally, hygroscopic food materials have been put into glass or metal can containers for distribution and sale from the viewpoint of preventing moisture absorption, and the use of paper containers has been limited. Although the latter was present in snacks and the like, the lid was adhered to the paper container with an adhesive or the like, and once opened, could not be closed again. Therefore, once opened, unless consumed immediately on the spot, there is a disadvantage that the quality of food materials is impaired due to moisture absorption and the like.

[0003] Liquid beverage paper cups are used for soft drinks, fruit juice drinks, alcoholic beverages, and the like. However, the food and drink materials put in the containers are liquids, and even after opening, they absorb moisture in the air on short days. The quality was not impaired.

[0004]

[Problems to be solved by the invention]

 In recent years, with the increase in single men and women working and the declining birthrate and family, etc., small-capacity food products have been desired, and along with this, there has been a long-awaited desire to reduce the weight of containers. Thus, the emergence of food materials packed in paper containers that feature light weight and small size is desired, and together with this, food containers that exhibit a certain sealing function by being sealed after opening. Realization was desired.

[0005] The present invention has been made in order to respond to such demands of consumers, and even after being opened once, the food material can be stably stored for a relatively long period of time by closing the lid again. It is intended to provide a food paper container. It is another object of the present invention to provide a food paper container that can be used hygienically even if the lid is opened even if the lid is opened once when repeatedly used.

[0006]

[Means for Solving the Problems]

 SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and the present invention is directed to a food paper container comprising a container body and a lid, wherein a container is provided with a ring in a top curl portion of the paper container. A food paper container constituted by a main body, a lid provided on an inner surface thereof, and a lid having an inner peripheral groove fitted into an outer peripheral edge of the ring, is characterized by the following.

According to a second aspect of the present invention, in a food paper container comprising a container body and a lid, a ring is provided on a top curl portion of the paper container, and a peripheral edge is formed on an inner surface of the lid fitted with the ring. The food paper container is characterized in that the lid is easily detached when a force is applied to the hanging edge of the lid by contacting the tip of the peripheral protruding edge to the upper surface of the ring.

[0008]

[Embodiment of the invention]

 The food paper container of the present invention is shown in FIGS. A plastic molding ring 2 (hereinafter, referred to as "ring") was adhered to the top curl portion of a paper container 1 'whose outermost layer was made of a plastic layer. This type of container body can be manufactured by a method disclosed in, for example, Japanese Patent Publication No. 17929 (Dainippon Printing Co., Ltd.), Japanese Patent Publication No. 4-28535 (Toppan Printing Co., Ltd.) or the like.

In the present invention, the paper container 1 ′ of the food paper container uses a sheet-like laminated material made of paper and a plastic film or paper, an aluminum foil and a plastic film, and uses the plastic layer as an adhesive layer to form a body. Including those that are pasted and molded into a cup shape. The container body 1 made by bonding a plastic molded ring 2 to the top seal of a paper cup whose outermost layer is made of a plastic layer is also called a paper container 1 '. Generally, the material of the lid 3 is plastic.

On the inner surface of the lid 3, a plurality of, preferably 6 to 8 ribs 4 are evenly provided on the inner peripheral surface, and an inner peripheral groove 5 is provided for fitting to the outer peripheral edge of the ring 2. (FIGS. 2, 3, and 4). When the lid is attached to the paper container 1 ′, since the outer edge of the ring 2 is pressed against the inner peripheral groove of the lid, the inner diameter R 1 from the center of the lid to the inner peripheral groove (see FIG. 4) is equal to the outer peripheral edge of the ring 2. (See FIG. 5A). This difference is between 0.1 and 1.0 mm, preferably between 0.3 and 0.5 mm. FIG. 5B shows an example in which a reinforcing rib 9 and a circumferential protrusion 8 for reinforcement are provided on the outer surface of the ring 2.

In order to improve the fit between the lid 3 and the container body 1, the combination of the outer peripheral edge of the ring 2 and the inner peripheral groove 5 of the lid is important. As shown in FIGS. 4 and 5, at least the corner radius of the outer peripheral edge of the ring 2 is larger than the corner radius of the inner peripheral groove 5 of the lid 3.

As shown in FIGS. 6, 7, 8 and 9, attached to the food paper container lid 3 are circumferential protruding edges 10, 20, 20 'having a fixed length. Is provided. That is, in a paper container 1 ′ composed of a cup with a ring 2 and a food paper container composed of a lid 3, a plastic molded ring 2 is provided at the top curl portion of the paper container 1 ′ and fitted with the ring 2. A rib 4, an inner circumferential groove 5, or a circumferential protruding edge 10 is provided on the inner surface of the lid 3. The radius L1 of the peripheral protruding edge 10 is a length from the center of the lid 3 to the lowermost end of the peripheral protruding edge 10, that is, H1. When there are a plurality of lengths from the center of the lid 3 to the lowermost end of the peripheral protruding edge 10 depending on the shape of the peripheral protruding edge 10, or when the lowermost end of the peripheral protruding edge 10 has a flat surface, The long one is L1.

The peripheral protruding edge of the present invention protrudes from the inner surface of the lid 3 so that when the lid 3 is mounted on the paper container 1 ′, the upper surface of the ring 2 and the peripheral protruding edge 10 are pressed against each other. The protruding edge 10 is provided at a position of a radius L1 larger than the radius L2 of the upper surface of the ring 2 and needs to have a height H1 higher than the height H2 of the outermost periphery of the lid 3.

In this way, the ring and the lid not only come into pressure contact with the outer edge of the ring 2 and the inner peripheral groove 5 of the lid 3, but also come into pressure contact with the upper surface of the ring 2 and the end of the peripheral protruding edge 10. The upper portion of the hanging edge 7 above the inner peripheral groove 5 and immediately below the inner circumferential groove 5 (the circumferential upper surface of the ridge 6) and the radius of the radius portion of the hanging edge 7 of the ring 2 are further strengthened and the sealing state is further enhanced. Since the stopping function is enhanced, the quality of the food material can be maintained for a longer period due to moisture absorption and the like. Further, when the lid is removed from the upper surface of the ridge 6 on the lever, the lid can be easily removed by the repulsive force generated by the press-contact between the circumferential ridge 10 and the upper surface of the ring 2.

Further, after the food material in the paper container falls down with the lid closed, when the lid 3 is opened and used, the food material is removed by the peripheral protruding edge 10 to prevent the food material from being placed on the upper surface of the ring, In addition to eliminating unsanitary sensation, there is almost no danger of spilling outside and soiling when opening.

[0016]

【Example】

 Next, as shown in FIG. 6, an embodiment of the present invention will be described for a food paper container comprising a container body 1 and a lid 3.

The container body 1 has a plastic molded ring 2 bonded to a top curl portion of a paper cup made of a paper container 1 whose outermost layer is made of a plastic layer.

The material of the lid 3 is made of plastic, and a peripheral ridge 10 having a constant height H1 is provided on the inner surface of the lid 3 at a position at a constant distance L1 from the center of the lid.

[Modification 1] FIG. 8 shows a modification of the food paper container of the present invention, in which the lowermost end of the circumferential protruding edge 20 that contacts the plastic molded ring 2 has a width W. The ribs can be omitted.

[Modification 2] FIG. 9 shows another modification of the food paper container of the present invention. As in the above-mentioned modification, the lowermost end of the circumferential protruding edge 20 ′ in contact with the plastic molded ring 2 has a width. In the case where the peripheral projection 20 ′ is located closer to the center of the lid, the contact surface of the peripheral projection 20 ′ with the ring 2 protrudes from the upper surface of the ring 2 to the inside of the paper container in the radial direction. Is what it is.

In this manner, the powdered food material does not remain on the upper surface of the ring 2 even when the lid is opened after the paper container containing the powdered food material is tilted or turned over, and then turned over.

[0022]

[Effect of the invention]

 According to the food paper container of the present invention, since the container body and the lid can be fitted together while pressing the container body and the lid at a plurality of press-contacts or contact surfaces, the sealing property is enhanced, and even after being opened, the container is relatively long. It is possible to provide a food paper container that can stably store food materials over a period of time and that can be used in a sanitary manner similarly to a conventional glass container even when repeatedly used as a paper container.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an overview of a food paper container of the present invention.

FIG. 2 is a partially cutaway sectional view showing a fitting portion between a paper container, a lid, and a cup with a ring.

FIG. 3 is a view showing a lid of the food paper container of the present invention,
3A is a vertical sectional view, and FIG. 3B is a partial plan view of an inner surface.

FIG. 4 is an enlarged partial sectional view showing a lid of the food paper container of the present invention.

5A and 5B are views showing the ring of the present invention, wherein FIG. 5A is a partially cutaway sectional view, and FIG. 5B is a partially sectional view of an outermost edge.

FIG. 6 is a partial sectional view showing a fitting portion of a cup with a ring of a lid of a paper container showing another embodiment of the food paper container of the present invention.

FIG. 7 is a view showing a lid of the food paper container of the present invention,
7A is a sectional view, and FIG. 7B is a partial plan view of the inner surface.

FIG. 8 is a cross-sectional view showing a modification of the present invention, showing a fitting portion between a paper container lid and a paper cup with a ring.

FIG. 9 is a cross-sectional view showing another modification of the present invention and showing a fitting portion between a lid of a paper container and a cup with a ring.

Claims (2)

[Utility model registration claims] 1. A food paper container comprising a container body and a lid, wherein a container body provided with a ring at a top curl portion of the paper container, a rib and / or a circumferential protruding edge provided on an inner surface and an outer peripheral edge of the ring A food paper container comprising: a lid having an inner peripheral groove to be fitted. 2. A food paper container comprising a container body and a lid, wherein a ring is provided on a top curl portion of the paper container, and a peripheral lip is provided on an inner surface of the lid fitted with the ring. 2. The food paper container according to claim 1, wherein the lid is easily detached when a force is applied to a hanging edge of the lid by contacting a top end of the lid with an upper surface of the ring.