JP7212005B2 - Container and lid with hermetic structure - Google Patents

Description

TECHNICAL FIELD The present invention relates to a sealing structure, and more particularly to a container and lid having a sealing structure.

In general containers, it is necessary to cover the opening of the container with a lid in order to prevent dust and dirt from entering from the outside and contaminating the food and drink in the container.

However, when a conventional lid is placed over the container, the compatibility between the lid and the container is not high, resulting in poor sealing performance. Furthermore, when the container is made of a flexible soft material, the container tends to deform when subjected to an external force, and the lid may come off. Alternatively, when the temperature of the food in the container is high, pressure is generated, and the lid may come off due to the pressure generated inside the container. Therefore, there has been a demand for a sealing structure that allows the container and lid to be tightly combined.

Therefore, the inventor of the present invention thought that the above-mentioned drawbacks could be improved, and as a result of earnest studies, the present inventors came up with the proposal of the present invention that effectively solves the above-mentioned problems with a rational design.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems of the prior art. SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a container and lid having a sealing structure that allows the container and lid to be tightly mated.

In order to solve the above problems, according to one aspect of the present invention, a container and a lid having a sealing structure have a bottom wall and a side wall that are in contact with each other, and a space is formed by jointly surrounding the bottom wall and the side wall, and the bottom The other end of the sidewall contacting the wall is defined as an open end, the sidewall having corresponding inner and outer surfaces, the inner surface facing the space and the outer surface corresponding to the inner surface. a container having a first hook portion, the inner surface being placed at the open end of the container, made of a flexible material, having a covering portion and a second hook portion, the covering portion is tightly overlaid on the open end, and the second hook portion is engaged with the first hook portion.

As described above, according to the present invention, the covering portion is tightly covered and combined with the opening end portion so that the second hook portion is engaged with the first hook portion, and the lid and the container are separated from each other. Bonding becomes even stronger.

Also, in the container and lid having a sealing structure according to the present invention, the covering portion has an outer portion, an upper portion, and an inner portion which are in contact with each other in order. The outer portion is attached to the outer surface and the inner portion is attached to the inner surface. The lid has an affixing portion, and the affixing portion is connected to the inner portion and has an affixing surface. The attaching surface faces the inner surface of the side wall, and the second hook portion is connected to the attaching portion. Thereby, the affixing surface is affixed or separated so as to cover the inner surface according to the pressure change in the container.

As described above, since the affixed portion faces the inner side surface, the pressure inside the container applies pressure to the affixed portion and the side wall, thereby maintaining tightness between the container and the lid. , the lid will not come off due to the pressure inside the container. When the lid is opened, it is enough to apply an external force to the lid, and furthermore, the second hook part is further engaged with the first hook part, so that the connection between the lid and the container is further strengthened. .

It is the schematic explaining the container and lid|cover which have the sealing structure which concerns on this invention. 1 is a cross-sectional view showing a container and a lid having a sealing structure according to a first embodiment of the present invention; FIG. 1 is an enlarged cross-sectional view showing a container and a lid having a sealing structure according to a first embodiment of the present invention; FIG. FIG. 5 is an enlarged cross-sectional view showing a container and a lid having a sealing structure according to a second embodiment of the present invention; FIG. 8 is an enlarged cross-sectional view showing a container and a lid having a sealing structure according to a third embodiment of the present invention;

Hereinafter, a container and a lid having a sealing structure according to the present invention will be specifically described with reference to the drawings. It should be noted that the embodiments described below do not limit the content of the present invention described in the claims. Moreover, not all the configurations described below are essential requirements of the present invention.

At least the following matters will be clarified by the description of the present specification and drawings.

First, with reference to FIGS. 1 to 5, the container and lid having the sealing structure of the present invention will be described in more detail.

The components of the container and lid having a sealing structure are as follows.
The container 10 has a bottom wall 11 and a side wall 12 which are in contact with each other, and a space 13 is formed by jointly surrounding the bottom wall 11 and the side wall 12 . The other end of the sidewall 12 that contacts the bottom wall 11 is defined as an open end 121, and the sidewall 12 has corresponding inner and outer surfaces 12A and 12B. The inner surface 12A faces the space 13, the outer surface 12B is one surface facing the inner surface 12A, and the inner surface 12A has a first hook portion 14. As shown in FIG.

A lid 20 is installed at the open end 121 of the container 10, and the lid 20 is made of a flexible material. The lid 20 has a covering portion 21 and a second hook portion 23, and the covering portion 21 is overlaid on the open end 121 to form a tight fixing force. The second hook portion 23 is engaged with the first hook portion 14 .

Preferably, the first hook portion 14 has a first stopper portion 141 , and the first stopper portion 141 faces the bottom wall 11 . The second hook portion 23 has a second stopper portion 231 , and the second stopper portion 231 is attached to the first stopper portion 141 to prevent the lid 20 from coming off the container 10 .

Preferably, the first hook portion 14 and the second hook portion 23 are connected by unevenness.

Preferably, there is a fixing ring 30 inside the open end 121 , and the fixing ring 30 is made of metal material to reinforce the strength of the open end 121 of the container 10 .

Preferably, the open end 121 has an end surface 121A that abuts between the inner surface 12A and the outer surface 12B. The covering portion 21 has a covering surface 211, and when the covering surface 211 is tightly adhered to the end surface 121A, a tight fixing force is generated.

The configuration of the first embodiment of the present invention is shown in FIGS. 1 to 3. FIG. The covering portion 21 has an outer portion 21A, an upper portion 21B, and an inner portion 21C, which are in contact with each other. The outer part 21A is tightly attached to the outer surface 12B, and the inner part 21C is tightly attached to the inner surface 12A, further generating a tight fixing force, and the covering surface 211 is positioned on the upper part 21B. It is

The lid 20 has an attachment portion 22 connected to the inner portion 21C, the attachment portion 22 has an attachment surface 221 facing the inner surface 12A of the side wall 12, and the second hook portion 23 is connected to the affixing portion 22 . As a result, according to the pressure change in the container 10, the attachment surface 221 is attached or separated so as to cover the inner surface 12A.

Preferably, the distance between the outer part 21A and the inner part 21C is a first distance D1, the width of the side wall 12 has a second distance D2, and the distance between the outer part 21A and the inner part 21C is An insertion space 24 is formed in the .
Before the lid 20 is covered with the container 10, that is, before the open end 121 is installed in the insertion space 24, the first distance D1 is shorter than the second distance D2. Therefore, since the lid 20 is made of a flexible material, the insertion space 24 opens slightly when the opening end 20 enters the insertion space 24 . When the open end 121 fully enters the insertion space 24, the insertion space 24 is evacuated, and the outer part 21A and the inner part 21C are attached to the side wall 12 more tightly.

As mentioned above, when the temperature or vapor in space 13 creates pressure within space 13, the pressure exerted on lid 20 provides a force to remove lid 20, while the pressure exerted on said attachment portion 22 causes said attachment portion to move. 22 is affixed tightly to the side wall 12, making the connection between the lid 20 and the container 10 even tighter.
Since the pressure has no directivity, the pressure applied to the upper edge of the lid 20 and the pressure applied to the affixing portion 22 are equal, and the forces of each quantity cancel each other out, and the pressure inside the container 10 increases with that of the container 10. The tightness with the lid 20 is no longer affected.

FIG. 4 shows the configuration of the second embodiment of the present invention. The covering portion 21 has the outer portion 21A, the upper portion 21B, and the inner portion 21C, which are in contact with each other in sequence, the outer portion 21A being tightly attached to the outer surface 12B, and the inner portion 21C being attached to the inner portion. The side surface 12A is tightly attached to generate a tight fixing force, the covering surface 211 is positioned on the upper portion 21B, and the second hook portion 23 is connected to the inner portion 21C.

Preferably, the distance between the outer part 21A and the inner part 21C is a first distance D1, the width of the side wall 12 has a second distance D2, and the distance between the outer part 21A and the inner part 21C is An insertion space 24 is formed in .
Before the lid 20 is covered with the container 10, that is, before the open end 121 is installed in the insertion space 24, the first distance D1 is shorter than the second distance D2. Therefore, since the lid 20 is made of a flexible material, when the opening end 20 enters the insertion space 24, the insertion space 24 opens slightly. When the open end 121 fully enters the insertion space 24, the insertion space 24 is evacuated, and the outer part 21A and the inner part 21C are attached to the side wall 12 more tightly.

FIG. 5 shows the configuration of the third embodiment of the invention. The covering part 21 has the upper part 21B and the inner part 21C which are in contact with each other in order, the inner part 21C being tightly attached to the inner surface 12A to generate a tightly fixed force, and the covering surface 211 being the upper part. 21B.

The lid 20 has an attachment portion 22 connected to the inner portion 21C, the attachment portion 22 has an attachment surface 221 facing the inner surface 12A of the side wall 12, and the second hook portion 23 is connected to the affixing portion 22 . Therefore, according to the pressure change in the container 10, the attachment surface 221 is attached or separated so as to cover the inner surface 12A.

The above description is for the purpose of illustrating the present invention and should not be construed as limiting the invention described in the claims or restricting the scope thereof. Further, the configuration of each part of the present invention is not limited to the above-described embodiment, and of course various modifications are possible within the technical scope described in the claims.

10 container 11 bottom wall 12 side wall 12A inner surface 12B outer surface 121 opening end 121A end surface 13 space 14 first hook portion 141 first stopper portion 20 lid 21 covering portion 21A outer portion 21B upper portion 21C inner portion 211 covering surface 22 pasting Part 221 Attachment surface 23 Second hook part 231 Second stopper part 24 Insertion space 30 Fixing ring D1 First distance D2 Second distance

Claims (7)

having a bottom wall and a side wall contacting each other, the bottom wall and the side wall jointly enclosing a space, the other end of the side wall contacting the bottom wall being defined as an open end, the side walls facing each other a container having an inner surface and an outer surface, the inner surface facing the space, the outer surface being a surface corresponding to the inner surface, and the inner surface having a first hook;
is placed at the open end of the container, is made of a flexible material, and has a cover and a second hook, the cover is tightly fitted over the open end, and the second hook is a lid that is engaged with the first hook portion,
the covering portion has an upper portion and an inner portion which in turn abut, said inner portion tightly affixed to said inner surface, thereby generating a tight clamping force;
The lid has an attaching portion, the attaching portion is connected to the tip side of the inner portion, the attaching portion has an attaching surface, and the attaching surface faces the inner surface of the side wall. , the second hook portion is connected to the tip side of the attachment portion,
characterized in that the attachment surface is attached or separated from the inner surface according to changes in pressure within the container ,
A container and lid having a hermetic structure. 2. The seal of claim 1, wherein said covering further comprises an outer portion, said outer portion abutting said upper and inner portions, and said outer portion being attached to said outer surface. Container and lid with structure. The distance between the outer portion and the inner portion is a first distance, the width of the side wall has a second distance, an insertion space is formed between the outer portion and the inner portion, and the 3. The container and lid with sealing structure according to claim 2, wherein the first distance is shorter than the second distance before the lid is placed over the container. The open end has an end surface, the end surface is bounded between the inner surface and the outer surface, the cover has a cover surface, the cover surface is tightly attached to the end surface, and the The container and lid with a sealing structure according to claim 1 or 2, wherein the covering surface is located on the upper part. The first hook portion has a first stopper portion, the first stopper portion faces the bottom wall, and the second hook portion has a second stopper portion attached to the first stopper portion. A container and a lid having the sealing structure according to claim 1 or 2. 3. The container and lid having a sealing structure according to claim 1 or 2, wherein the first hook portion and the second hook portion are connected by projections and depressions. 3. The container and lid with sealing structure according to claim 1 or 2, wherein the open end has a fixing ring, and the fixing ring is made of metal material.

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