JPH074356U - Food container - Google Patents

Abstract

(57) [Summary] [Object] To provide a food container capable of easily and surely attaching a lid and capable of preventing liquid leakage while maintaining high hermeticity. A container body 2 having a fitting portion 5 inside a peripheral wall and a lid body 7 having an edge portion 8 that can be press-fitted to the fitting portion 5,
At least one hole 10 having a diameter of about 0.5 mm to 1 mm is formed on the lid surface 9 of the lid body 7.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a food container with a lid, which is formed by molding a synthetic resin film or sheet for containing and selling foods such as fresh foods and side dishes that produce juice or liquid.

[0002]

[Prior art]

 Food containers with lids that store fresh foods such as sashimi and foods from which juices and liquids such as various prepared foods are generally used.However, if the lids are not securely attached, the The juice and liquid in the container may seep out or leak to the outside, and some food items could not be stored. In this case, if the entire container is wrapped with a film, the liquid will not leak to the outside of the film, but there is no change in leaking the liquid from the container and it is not a good idea because it requires a lot of work.

Therefore, as shown in FIG. 4, a fitting portion is provided inside the peripheral wall of the container body, and a structure in which the edge portion of the lid is closely fitted to the fitting portion is adopted to prevent liquid leakage. It was This comprises a stepped shoulder portion 3 provided at an upper portion on the inner side of the peripheral wall of the container body 2, and a fitting surface 5 provided by being raised from the stepped shoulder portion 3 so as to incline toward the inward direction of the container. Then, the edge portion 6 is folded back and formed in a continuous manner with the fitting portion 5. Then, the lower peripheral edge portion 8 of the lid 7 is in contact with the shoulder portion 3, the fitting surface 4 and the edge portion 6, and the outer periphery is formed to be slightly larger than the fitting surface 4, and the fitting is performed. The lid 7 is attached to the portion 5 by press fitting.

[0004]

[Problems to be solved by the device]

 According to the above-mentioned structure, the sealing performance of the container can be improved, but since the air is sealed inside the container when the lid 7 is attached, it is difficult for the lower edge 8 of the peripheral edge to fit into the fitting portion 5, and the workability is improved. It was bad. In addition, the fitting was insufficient and the liquid sometimes leaked from the edge portion 6.

Further, even if the fitting portion 5 is securely fitted, when the containers are stacked and the air inside the container is pressed through the lid body 7 by the load as shown in FIG. However, there was a case where part of the lid body 7 was lifted up from the container body 2 in order to escape the air from the fitting portion 5 to the outside. Then, liquid leakage may occur from the raised portion.

The present invention has been made in view of the above problems of the prior art, and the purpose thereof is that the lid can be easily and surely attached, which is high. It is intended to provide a food container capable of preventing liquid leakage while maintaining hermeticity.

[0007]

[Means for Solving the Problems]

 In order to solve the above problems, a food container of the present invention comprises a container body having a fitting portion inside a peripheral wall and a lid body having an edge portion capable of fitting to the fitting portion, and a lid surface of the lid body. It has at least one hole. The holes to be bored are preferably provided with a diameter of about 0.5 mm to 1 mm.

[0008]

[Action]

 By providing a hole on the lid surface to communicate the outside and the inside of the container, the inside of the container can be kept at the same atmospheric pressure as the outside. Therefore, it is possible to prevent the lid from being improperly attached, floating, or deformed due to the high atmospheric pressure inside the container, and the lid is securely fitted to the container body, and the liquid does not leak from the edge of the container.

[0009]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an external view of the food container of this embodiment, and FIG. 2 is a sectional view of the food container of this embodiment. In the figure, a food container 1 of the present embodiment has a container body 2 and a lid 7 each of which has a peripheral edge formed in a fitting portion shape circular in plan view with an inner fitting configuration similar to that of the conventional example shown in FIG. However, a hole 10 is formed in the central portion of the lid surface 9 of the lid body 7 to communicate the inside and outside of the lid body 7.

The hole 10 can be formed by using an appropriate method such as pressing a heated needle against the lid surface 9. If the size is larger than the hole with a diameter of about 1 mm, the liquid easily leaks from the hole and foreign substances are easily mixed from the outside of the container, and if it is smaller than the hole with a diameter of about 0.5 mm, Since the air communication between the inside and outside of the lid 7 is insufficient and it is difficult to press fit, and the air is less likely to leak quickly when the lid surface is pressed, it is possible to open it with a size of about 0.5 mm to 1 mm. It is preferable.

The position to be bored is most preferably near the central portion of the lid surface 9 farthest from the edge of the lid body 7, as a position where it is hard to be immersed in the liquid even if the container is tilted, but it is not limited to this range. . It should be noted that it is optional to attach a product label or a seal so as to cover the hole 10 after the lid 7 is attached.

In such a configuration, after the food is stored in the container body 2, the lower end 8 of the peripheral edge of the lid 7 is press-fitted to the fitting portion 5 to attach the lid 7. At this time, the air inside the container leaks out through the hole 10 to the outside of the container, and the peripheral edge lower end portion 8 can be easily fitted without receiving the repulsive force of the air by sealing the inside of the container.

Further, as shown in FIG. 3, when the air inside the container is pressed through the lid surface 9, an amount of air corresponding to the deformation amount of the lid body 7 due to the pressure leaks out from the hole 10 to the outside. However, since the air pressure inside the container is kept constant, the lid 9 does not float up. Further, since the hole 10 has a sufficiently small diameter as described above and a large amount of air does not leak instantaneously, the lid 7 is not crushed.

As described above, by providing the hole 10 on the lid surface 9 to communicate the outside and the inside of the container, the inside of the container can be always kept at the same atmospheric pressure as the outside. Therefore, it is possible to prevent the lid from being improperly attached, floating, or deformed due to the increase of the atmospheric pressure inside the container, and the lid is securely attached to the container body, so that the liquid does not leak from the edge of the container.

It should be noted that the holes 10 provided in the lid body may be formed after the lid body is attached, and it is the most difficult to leak when they are formed as a pair, but depending on the size of the holes. Two or more can be provided.

[0016]

[Effect of device]

 As described above, according to the present invention, since the inside of the container can be maintained at the same atmospheric pressure as the outside by providing the hole on the lid surface to communicate the inside and the outside of the container, the lid is not properly attached, or is lifted or deformed. Can be prevented. Therefore, the lid is easily and surely attached to the container body, and it is possible to prevent the liquid from leaking from the container while maintaining a high sealing property.

[Brief description of drawings]

FIG. 1 is a perspective view showing the external appearance of an embodiment of a food container of the present invention.

2 is a cross-sectional view of the food container of FIG.

FIG. 3 is a cross-sectional view showing a state in which air inside the food container of FIG. 1 leaks to the outside.

FIG. 4 is a cross-sectional view showing a state in which a lid and a container body of a conventional food container are separated.

5 is a cross-sectional view showing a state where a lid attached to the container body is lifted in the food container of FIG.

[Explanation of symbols]

 1 Food Container 2 Container Main Body 3 Step Shoulder 4 Fitting Surface 5 Fitting Part 6 Edge 7 Lid 8 Lower Edge Perimeter 9 Lid Surface 10 Hole

Claims (2)

[Scope of utility model registration request] 1. A food container made of synthetic resin, comprising a container body having a fitting portion inside a peripheral wall and a lid body having an edge portion capable of being fitted to the fitting portion, wherein at least a lid surface of the lid body is provided. A food container having a single hole. 2. The food container according to claim 1, wherein the hole formed in the lid surface has a diameter of about 0.5 mm to 1 mm.