KR100870960B1 - Packing of airtight containers - Google Patents

Abstract

Coupled to the packing coupling portion of the airtight container having a closed end portion and a closed rim formed in the upper opening circumferential region and a lid having an opening and closing of the upward opening of the container body and a packing coupling portion formed at a lower portion corresponding to the closed end portion. As the packing is to be connected, the lid coupling portion coupled to the packing coupling portion and the bottom contact surface is formed in contact with the closed end portion, the side contact portion interposed between the packing coupling portion and the outer end of the sealing end, It characterized in that it has a closed rim contact between the packing coupling portion and the closed rim.

Thereby, the sealing force is strongly maintained and the lid is not opened arbitrarily, and the packing of the airtight container which a user can hold easily is provided.

Description

Sealing container packing {Gasket for airtight container}

The present invention relates to a packing of a sealed container, and more particularly, to a packing of a sealed container having an improved sealed structure.

In general, the sealed container is mainly used for the storage of food, etc., the performance of the product is determined by the sealing force for long-term storage of food and preventing the outflow of food liquid.

The general configuration of such a sealed container was composed of a container body for forming a receiving space such as food, a lid for opening and closing the upward opening of the container body, and a packing for sealing between the container body and the lid.

In addition, as a structure for locking and unlocking the sealed state between the lid and the container body, a locking wing that rotates on the circumferential side of the lid is provided, and a locking portion that locks and locks the circumferential surface of the container body Had a formed structure.

However, such a conventional airtight container has a problem that the lock wing is easily broken by external impact or frequent use, and there is an inconvenience in that the lock wing is rotated when the lid is opened and closed.

In order to solve this problem, as shown in FIGS. 1 and 2, a hermetically sealed container 101 that opens or closes the lid 120 has been developed by making the inside of the container into a vacuum state or by releasing the vacuum state.

Looking at the configuration of the sealed container 101, the container body 110 to form a receiving space, such as food, such as the conventional sealed container described above, the lid 120 for opening and closing the upward opening of the container body 110, the container Packing 130 for sealing between the body 110 and the lid 120, and a vacuum valve 125 for making the interior of the container body 110 in a vacuum state or vacuum release.

The sealing and the release of the sealed state of the sealed container 101 configured in this way is packed around the upper circumferential end of the container body 110 and the lower circumferential region of the lid 120 corresponding to the vacuum operation state of the vacuum valve 125. It is made by the action of being in close contact or spaced apart with the (130) therebetween.

Looking in more detail the structure for sealing and releasing the sealed state of the airtight container 101, the valve mounting portion 121 is formed to be curved in one area of the upper surface of the lid 120, the valve mounting portion 121 On the bottom surface of the) penetrated air flow hole 122 is formed. In addition, the valve installation unit 121 is coupled to the plate surface of the valve installation unit 121 by the elastic force is coupled to the vacuum valve 125 for opening and closing the air flow hole 122 is coupled. The vacuum valve 125 is made of silicon or rubber material having elasticity and excellent adhesion and sealing force.

In addition, a packing coupling groove 123 to which the packing 130 is coupled is formed in the lower circumferential surface of the lid 120 along the circumferential direction, and the packing coupling along the circumferential direction on the upper end of the container body 110 corresponding thereto. The sealing end 111 is inserted into the groove 123 so as to be in shape and in close contact with the packing 130.

In the conventional hermetically sealed container 101 having such a configuration, when the upper surface of the lid 120 is pressed downward in a state in which the upper opening of the container body 110 is closed with the lid 120, the plate surface of the lid 120 is resilient to the container. The inside of the container body 110 is reduced while being bent into the main body 110, whereby air in the container body 110 is discharged to the outside through the air flow hole 122 of the valve installation unit 121. The pressure difference between the inside and the outside of the container body 110 is generated. At this time, the vacuum valve 125 is in an open state spaced apart from the air flow hole 122 by the discharged air.

In addition, when the pressing force applied to the upper surface of the lid 120 is released, the lid 120 is to be restored to its original shape by the elastic restoring force. In this case, the outside air is caused by the pressure difference between the inside and the outside of the container body 110. The vacuum valve 125 blocks the air flow hole 122 by the action to be introduced into the container body 110 through the air flow hole 122 and the elastic restoring force of the vacuum valve 125.

As a result, the lid 120 forms a vacuum suction state with the container body 110 while the upper circumferential end portion of the container body 110 and the lower circumferential area of the lid 120 corresponding thereto are sandwiched by the packing 130. By being in close contact with each other, the sealed container 101 is sealed in a vacuum state.

On the other hand, when releasing the sealed state of the airtight container 101, if the user separates the vacuum valve 125 from the plate surface of the valve mounting portion 121, the outside air by the pressure difference between the inside and outside of the container body 110 Is introduced into the container body 110 through the air flow hole (122). As a result, the pressure inside the sealed container 101 and the atmospheric pressure outside are formed to be the same, so that the lid 120 can be separated from the container body 110.

As a result, the container body 110 can be opened and closed with the lid 120 while maintaining a predetermined sealing force without having a locking wing structure.

However, in the conventional airtight container having a closed structure by the vacuum operation, since the upper end of the container body is in close contact with the packing of the simple rectangular cross-sectional structure coupled to the packing coupling groove of the lid, the packing and the container There was a problem that the contact surface between the closed end of the main body is formed very narrow and the sealing force is weakly formed.

As a result, when the lid is gripped in the process of lifting the sealed container, a problem arises in that the lid is arbitrarily opened by a weak sealing force.

In addition, the conventional hermetically sealed container does not have a structure in which a user can hold it with one hand as compared to the conventional hermetically sealed container provided with a lock wing, and thus it is not easy to hold the hermetically sealed container with one hand. There was this.

Accordingly, an object of the present invention is to provide a packing of a sealed container in which the sealing force is strongly maintained so that the lid is not opened arbitrarily, and the user can easily grip the lid.

The object of the present invention is to seal the container body having a closed end portion and a closed rim formed in a region around the upward opening, and a lid having a packing coupling portion formed at a lower portion corresponding to the closed end to open and close the upward opening of the container body. A packing coupled to the packing coupling portion of the container, comprising: a lid coupling portion coupled to the packing coupling portion and having an end contact surface formed at a lower end thereof in contact with the sealed end portion, and between the packing coupling portion and the sealed end outer surface. It is achieved by the packing of the airtight container, characterized in that it has a side contact portion interposed therebetween, and the airtight rim contact portion interposed between the packing coupling portion and the closed rim.

Here, the packing coupling portion has a cross section having an inner rib positioned inside the upper end of the container body, an outer rib positioned outside the upper end of the container body, and a packing slit formed between the inner rib and the outer rib. Formed into a shape; Preferably, the lid coupling portion is coupled to the packing slit, the side contact portion extends downward from the lid coupling portion, and the closed rim contact portion extends from the side contact portion to be interposed between the lower end of the outer rib and the closed rim. .

Further, it is effective to further include a friction gripping portion exposed to the outer surface of the packing coupling portion while surrounding the lower region of the outer rib together with the side contact portion and the sealing contact portion.

At this time, it is more preferable that a friction pattern is formed on the externally exposed surface of the friction gripping portion.

In addition, the upper end of the closed end of the container body is formed in a curved shape, it is more effective that the end contact surface is a curved shape that is mutually matched.

In addition, it is more preferable to further include a sealing protrusion protruding from the side contact portion toward the closed end.

Thereby, the sealing force is strongly maintained and the lid is not opened arbitrarily, and the packing of the airtight container which a user can hold easily is provided.

Figure 3 is a cross-sectional view of a sealed container having a packing according to the present invention, Figures 4 to 6 are views for explaining the sealing process of the sealed container having a packing according to the present invention. As shown in these figures, the sealed container 1 having the packing 30 according to the present invention is to open and close the container body 10 and the upward opening of the container body 10 to form a receiving space opened upwards. Has a lid 20; The packing 30 is coupled to the packing coupling portion 23 formed on the lower circumferential surface of the lid 20 to be described later.

The container body 10 has a tubular shape that is upwardly open like a general sealed container, the upper circumferential surface of the closed rim 13 and the upper portion of the closed rim 13 in contact with the packing 30 along the circumferential direction The closed end portion 11 is formed to extend. At this time, the upper end cross-sectional shape of the closed end 11 is preferably formed in a curved surface to increase the contact surface with the packing (30).

The lid 20 has a plate portion 21 having an area corresponding to an upward opening of the container body 10 and an elastic restoring force, and a packing coupling portion formed along the circumferential direction in the circumferential region of the lower surface of the plate portion 21 ( 23) has a structure formed integrally.

The lid 20 is provided with a vacuum valve 25 in one region of the plate portion 21 similar to the lid 20 of the conventional sealed container 101 to seal the container body 10 without a separate locking structure. Can be. At this time, the vacuum valve 25 may be provided with the same as the vacuum valve 125 of the conventional hermetically sealed container 101, the vacuum valve 125 of the conventional hermetically sealed container 101 having another general vacuum operation structure, and the like. Various types of vacuum valves may be used.

In addition, the lid 20 may seal the container body 10 by using a locking wing (not shown) structure instead of the vacuum valve 25. The locking wing (not shown) structure may be formed to be rotatable in the circumferential region of the plate portion 21 of the lid 20 to be engaged and released from the closed rim 13 of the container body 10. . Hereinafter, the present invention will be described using the lid 20 having the structure of the vacuum valve 25 as an example.

The packing coupling part 23 formed in the circumferential region of the lower surface of the lid 20 includes an inner rib 23a positioned at the upper inner side of the container body 10 and an outer rib positioned at the upper outer side of the container body 10. It is formed in a U-shaped cross-sectional shape having a packing slit 23c formed between the 23b and the inner rib 23a and the outer rib 23b.

Here, the outer ribs 23b have a downward tapered structure that becomes narrower in width toward the lower side in the projection of the cross section. The inwardly stepped packing outer coupling part 23d is formed on the outer surface of the lower region of the outer rib 23b so that the friction grip part 35 of the packing 30 to be described later is shaped. Here, the packing outer coupling part 23d may be excluded when the friction grip part 35 is not formed in the structure of the packing 30 to be described later.

On the other hand, the packing 30 of the sealed container according to the present invention is molded to have a band shape corresponding to the packing coupling portion 23 of the lid 20 to be described later using a silicone or rubber material excellent in elasticity, adhesion and sealing force. .

The packing 30 is extended from the lid coupling portion 31 and the lid coupling portion 31 inserted into the packing slit 23c of the lid 20 when viewed in a cross-sectional shape to seal the container body 10. A packing contact part of the lid 20 together with the side contact part 33 sealing the gap between the outer end of the end 11 and the packing engaging part 23 of the lid 20 and the outer rib 23b. 23) the friction gripping portion 35 surrounding the lower region of the outer rib 23b and the lower end portion of the side contact portion 33 and the friction gripping portion 35 are in contact with the closed rim 13 of the container body 10. The closed rim contact portion 36 is integrally molded.

The lower surface of the lid coupling portion 31 is an end contact surface 31a at which the upper end of the closed end portion 11 of the container body 10 is in contact with the end contact surface 31a to the closed end portion 11 of the container body 10. It is preferable to form a corresponding curved surface for increasing the contact surface. At this time, the end contact surface 31a may be formed as a curved groove into which the closed end 11 of the container body 10 is inserted a predetermined depth.

In addition, it is preferable that a friction pattern 37 such as a plurality of protrusions is formed on the outer surface of the friction gripping portion 35 to increase the friction force when the user grips. This friction gripping portion 35 may be excluded from the overall structure of the packing 30 in some cases. That is, the structure of the packing 30 may be made of only the lid coupling portion 31 and the side contact portion 33 and the closed rim contact portion 36.

The closed rim contact portion 36 has a thickness smaller than that of the side contact portion 33 and the friction gripping portion 35. This is the upper end of the closed end portion 11 of the container body 10 in the process of sealing the container body 10 with the lid 20 pressurizes the lid coupling portion 31, the lid coupling portion 31 is compressed while the side contact portion ( 33 is deformed to smoothly contact the sealing end 11 of the container body 10 and the outer rib 23b of the packing coupling portion 23 of the lid 20.

On the other hand, in the packing 30 having such a structure, the outer surface of the lid engaging portion 31 and the side contact portion 33 facing the outer rib 23b has a small width with respect to the downwardly inclined surface of the outer rib 23b. It is preferable that it is formed in a vertical plane to have a space | interval.

This allows the lid coupling portion 31 of the packing 30 to be smoothly inserted into the packing slit 23c of the lid 20 and at the same time packing in the process of sealing the container body 10 with the lid 20. The side contact portion 33 of the 30 is to maximize the sealing force by being in close contact with the outer rib (23b) while pushing the air inside the packing slit (23).

As shown in FIG. 4, the sealed container 1 having the packing 30 according to the present invention has a lid 20 positioned on the container body 10, and then, as illustrated in FIG. 5, the lid ( 20) When the upper opening of the lid 20 is pressed downward as shown by arrow "P" in FIG. 5 in a state where the upward opening of the container body 10 is closed, the plate surface of the lid 20 is a virtual line "A" by elastic force. As described above, the inside of the container body 10 is bent into the container body 10 and discharged to the outside through the open vacuum valve 25.

Then, when the pressing force applied to the upper surface of the lid 20 is released, the lid 20 is restored to its original shape by elastic restoring force, and the vacuum valve 25 is blocked by the pressure difference between the inside and the outside of the container body 10. By the restoring force of the lid 20, as shown by the arrow "S", the packing coupling portion 23 is strongly adhered to the closed end 11 with the packing 30 therebetween.

As a result, the lid 20 forms a vacuum suction state with the container body 10, and the upper end portion 11 of the container body 10 and the packing coupling part 23 of the lid 20 are disposed between the packing 30. By being in close contact with each other, the inside of the airtight container 1 is sealed in a vacuum state.

At this time, the closed end portion 11 and the sealing rim 13 of the container body 10 and the contact sealing area between the packing coupling portion 23 and the packing 30 of the lid 20, as shown in Figure 6, the lid (20) The area between the inner surface of the packing slit 23c of the packing coupling part 23 and the upper outer surface of the sealed end of the container body 10 corresponding thereto, and the outer rib 23b of the packing coupling part 23 of the lid 20. By being formed over the area between the lower region and the closed rim 13 of the container body 10, the sealing area is formed to be very large to improve the sealing force.

In addition, the sealing end 11 and the lid contact portion 31 end contact surface 31a of the packing 30 corresponding thereto are formed in a curved surface to further increase the mutual contact surface, thereby further improving the sealing force.

In particular, as shown in Figure 6, when the upper end of the closed end portion 11 of the container body 10 presses the lid coupling portion 31 of the packing 30, the lid coupling portion 31 and the side contact portion 33 And as the sealing rim contact portion 36 is deformed, the lid coupling portion 31 of the packing 30 is maximized on the upper end surface of the sealing end 11 of the container body 10 and the inner surface of the packing slit 23c of the lid 20. The side contact portion 33 of the packing 30 is also maximized to the outer surface of the sealing end portion 11 of the container body 10 and the outer rib 23b of the packing coupling portion 23 of the lid 20. It adheres by adhesion. In addition, the closed rim contact portion 36 of the packing 30 is in close contact with the lower end of the outer rib 23b of the packing coupling portion 23 and the closed rim 13 of the container body 10. As a result, the sealing force between the lid 20 and the container body 10 is significantly improved.

On the other hand, when the user grips and lifts the hermetically sealed container 1, the user's hand is in contact with the friction grip part 35 of the packing 30 exposed to the outside of the hermetic container 1, thereby sealing without slipping. The container 1 can be easily gripped.

On the other hand, Figures 7 to 9 are views for explaining the sealing process of the sealed container having a packing according to another embodiment of the present invention. As shown in these figures, the packing 30 according to the present embodiment has a structure substantially the same as the packing of the sealed container described above, from the side contact portion 33 to the closed end 11 side of the container body 10. It further comprises a protruding sealing protrusion (33a).

7 to 9, the sealing protrusion 33a is a curved closed end of the container body 10 in the process of closing the container body 10 with the lid 20. 11) pressurized while being in contact with one side to push the air that can be formed between the closed end 11 and the end contact surface 31a of the packing 30, further improving the sealing force between the closed end 11 and the end contact surface 31a. Let's do it.

As such, the sealed container according to the present invention has a large contact area between the sealed end of the container body and the packing coupling part of the lid and the packing, so that a tight sealing force is formed so that the lid is not opened arbitrarily.

In addition, even if the user grips the sealed container with one hand, the user can grip the sealed container stably without slipping due to the frictional force of the friction gripping portion of the packing.

1 is a perspective view of a hermetically sealed container having a conventional vacuum valve structure;

2 is a cross-sectional view taken along the line II-II of FIG. 1;

3 is a cross-sectional view of a sealed container having a packing according to the present invention,

4 to 6 is a view for explaining the sealing process of the sealed container having a packing according to the present invention,

7 to 9 are views for explaining the sealing process of the sealed container having a packing according to another embodiment of the present invention.

* Explanation of symbols for the main parts of the drawings

10: container body 11: closed end

20: lid 25: vacuum valve

23: packing coupling part 30: packing

Claims (6)

Coupled to the packing coupling portion of the airtight container having a closed end portion and a closed rim formed in the upper opening circumferential region and a lid having an opening and closing of the upward opening of the container body and a packing coupling portion formed at a lower portion corresponding to the closed end portion. In packing made, A lid coupling portion coupled to the packing coupling portion and having an end contact surface formed at a lower end thereof in contact with the closed end portion; A side contact portion interposed between the packing coupling portion and the closed end portion, Sealing container packing characterized in that it has a closed rim contact portion interposed between the packing coupling portion and the closed rim. The method of claim 1, The packing coupling portion has a cross-sectional shape having an inner rib positioned inside the upper end of the container body, an outer rib positioned outside the upper end of the container body, and a packing slit formed between the inner rib and the outer rib. Formed; The lid coupling portion is coupled to the packing slit, the side contact portion extends downward from the lid coupling portion, and the closed rim contact portion is extended so as to be interposed between the lower end of the outer rib and the closed rim from the side contact portion. Packing of sealed containers. The method of claim 2, The packing of the closed container, characterized in that it further comprises a friction gripping portion exposed to the outer surface of the packing coupling portion while surrounding the lower region of the outer rib together with the side contact portion and the sealing contact portion. The method of claim 3, Sealing container, characterized in that the friction pattern is formed on the external exposed surface of the friction gripping portion. The method of claim 1, The upper end of the closed end of the container body is formed in a curved shape, the end of the contact surface packing of the sealed container, characterized in that the curved shape to be mutually matched. The method of claim 5, The packing of the sealed container further comprises a sealing protrusion protruding from the side contact portion toward the closed end.

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