KR20220054740A - Cover for airtight container - Google Patents

Abstract

The present invention relates to a lid for an airtight container, comprising: a lid body formed to cover an opening of an airtight container; a locking wing formed to be locked by a locking protrusion; and an airtight packing interposed between the airtight container and the lid body. The lid body includes an inclination portion formed to be inclined at a predetermined reference inclination angle on an edge; and an inner rib and an outer rib formed at predetermined intervals on a lower surface of the inclination portion to form a packing insertion groove together with the inclination portion. The airtight packing is provided with an insertion portion inserted into the packing insertion groove while having an inclination surface formed to be inclined at the reference inclined angle to be in close contact with a ceiling surface of the packing insertion groove composed of a specific area on a lower surface of the inclination portion. Therefore, the present invention has an effect of providing a lid for an airtight container with an improved structure so that a sealing performance is excellent while an inclination structure is applied to an edge of a lid body provided with a packing insertion groove.

Description

Cover for airtight container

The present invention relates to a closed container lid for opening and closing the sealed container.

An airtight container is an article used to keep food and other items in an airtight state. The opening of the sealed container is equipped with a lid for opening and closing the accommodation space of the sealed container.

In general, the sealed container lid includes a lid body that covers the accommodation space of the sealed container, a locking wing formed so as to be able to be caught by a locking jaw formed on a side wall of the sealed container, and a packing insertion groove formed on the lower surface of the rim of the lid body. and a hermetic packing that seals the interface between the lid body and the hermetic container.

Recently, not only the sealing performance of an airtight container, but also the design of the hermetic container is emerging as an important factor affecting the commercial properties of the hermetic container. Accordingly, in order to improve the aesthetics of the lid, in the related art, the lower surface of the rim on which the packing insertion groove is formed is formed as a flat surface, and the upper surface of the rim exposed to the outside is formed as an inclined surface, thereby introducing an inclined structure to the rim of the lid body. There was an attempt.

When the slanted structure is introduced to the rim of the lid body in the same way as in the prior art, the thickness of the rim of the lid body is different for each region of the rim, so when molding the lid body by injection molding or other methods, the As the amount of shrinkage of the rim is different for each region, distortion occurs in the lid body. When distortion occurs in the lid body as described above, there is a gap between the lid body and the sealed container, and the sealing performance of the sealed container is deteriorated. Accordingly, in the prior art, there was a problem in that a sealed container having excellent sealing performance was not provided while an inclined structure was applied to the rim of the lid body.

The present invention is to solve the problems of the prior art described above, and it is an object of the present invention to provide a closed container lid whose structure is improved so that the sealing performance is excellent while the inclined structure is applied to the rim of the lid body in which the packing insertion groove is formed. .

A sealed container lid according to a preferred embodiment of the present invention for solving the above problems includes a lid body formed so as to cover an opening of the sealed container, a locking wing formed so as to be hooked on the locking jaw, and the sealed container And it relates to a closed container lid comprising a sealing packing interposed between the lid body, wherein the lid body, an inclined portion formed to be inclined at a predetermined reference inclination angle to the edge, and a packing insertion groove together with the inclined portion to constitute and an inner rib and an outer rib formed at a predetermined interval on the lower surface of the inclined portion, wherein the sealing packing is in close contact with the ceiling surface of the packing insertion groove composed of a specific region of the lower surface of the inclined portion at the reference inclination angle It has an inclined surface formed to be inclined and includes an insertion part inserted into the packing insertion groove.

Preferably, the upper surface and the lower surface of the inclined portion are formed to be inclined at the reference inclination angle, respectively, and the inclined surface is formed to be parallel to the lower surface of the inclined portion.

Preferably, the inclined portion is formed to be inclined upward toward the side end of the lid body.

Preferably, the insertion part further has a hollow formed in the center, and the inclined surface is formed on an outer surface of the upper partition facing the ceiling surface among partitions surrounding the hollow.

Preferably, the barrier ribs are formed to have the same thickness.

Preferably, the sealing packing further includes a protrusion formed to protrude from the insertion portion to the outside of the packing insertion groove so as to be in close contact with the locking jaw.

Preferably, the protrusion has a step formed so as to be in close contact with at least one of a lower end of the inner rib and a lower end of the outer rib.

Preferably, the step has a first step formed so that the upper surface is in close contact with the lower end of the outer rib and the side surface is in close contact with the lock wing locked to the locking step.

Preferably, the inner rib has a longer length than the outer rib so as to be in close contact with one side of the protrusion opposite to the side surface of the first step.

The present invention relates to an airtight container lid, and has the following effects.

First, the present invention, by forming an inclined portion formed to be inclined at a predetermined reference inclination angle on the edge of the lid body, and forming an inclined surface parallel to the inclined portion on one surface of the sealing packing facing the inclined portion, the inclined portion Through this, it is possible to improve the aesthetics of the lid of the sealed container and prevent the occurrence of a gap between the inclined portion and the sealed packing.

Second, the present invention provides a sealing packing with a protrusion protruding outward of the packing insertion groove so as to be in close contact with the ribs and locking blades constituting the packing insertion groove, thereby increasing the contact area between the lid body and the sealing packing through the protrusion, It is possible to improve the sealing performance of the hermetic packing.

1 is an exploded perspective view of an airtight container lid and an airtight container according to a preferred embodiment of the present invention.
Figure 2 is a perspective view of the combination of the sealed container lid and the sealed container shown in Figure 1;
3 is a cross-sectional view of the sealed container lid and the sealed container shown in FIG.
Figure 4 is a partial enlarged view of Figure 3;
5 is a perspective view of a closed container lid according to a preferred embodiment of the present invention.
Figure 6 is an exploded perspective view of the lower surface of the sealed container lid shown in Figure 5.
7 is a cross-sectional view of the sealed container lid shown in FIG.
Fig. 8 is a partially enlarged view of Fig. 7;
Fig. 9 is a perspective view of the sealing packing shown in Fig. 7;

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. In adding reference numerals to the components of each drawing, it should be noted that the same components are given the same reference numerals as much as possible even though they are indicated on different drawings. In addition, in describing the embodiment of the present invention, if it is determined that a detailed description of a related known configuration or function interferes with the understanding of the embodiment of the present invention, the detailed description thereof will be omitted.

In describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only for distinguishing the elements from other elements, and the essence, order, or order of the elements are not limited by the terms. In addition, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms such as those defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

1 is an exploded perspective view of the sealed container lid and the sealed container according to a preferred embodiment of the present invention, FIG. 2 is a combined perspective view of the sealed container lid and the sealed container shown in FIG. 1, and FIG. 3 is the sealed container shown in FIG. It is a cross-sectional view of the container lid and the sealed container, Figure 4 is a partial enlarged view of Figure 3.

The sealed container lid (1) according to a preferred embodiment of the present invention is an article for opening and closing the opening (2a) of the sealed container (2), and is provided so as to be detachably mounted on the sealed container (2). For this purpose, as shown in FIGS. 1 to 4 , the sealed container lid 1 includes a lid body 10 that is formed to cover the opening 2a of the sealed container 2 , and the lid body 10 . A locking blade 20 provided so as to be lockable in the sealed container 2 and a sealing packing 30 interposed between the sealed container 2 and the lid body 10, etc. may include

The material of the sealed container lid 1 is not particularly limited. For example, the lid body 10 and the lock wing 20 may be made of a synthetic resin material, and the sealing packing 30 may be made of a silicone material or a rubber material.

In addition, the formation method of the sealed container lid 1 is not specifically limited. For example, the lid body 10 and the locking wing 20 may be formed together through injection molding to have an integral structure, and the sealing packing 30 may be formed separately through injection molding or extrusion molding.

1 to 4 , the sealed container 2 includes an accommodation space in which food and other accommodations are accommodated, an opening 2a formed on the upper surface to open the accommodation space to the outside, and an accommodation space. The upper end of the sidewalls 2b of the sealed container 2 forming the compartment may include a locking protrusion 2c formed so that the locking wing 20 of the sealed container lid 1 is caught.

The material of the sealed container 2 is not particularly limited, and the sealed container 2 may be made of various materials such as synthetic resin and stainless steel.

In addition, as shown in FIG. 4 , the locking protrusion 2c may be formed in a closed loop structure at the upper end of the sidewalls 2b of the sealed container 2 . In particular, it is preferable that the locking protrusion 2c is formed to be elastically deformable. For example, the locking jaw 2c may be configured by rolling the upper ends of the sidewalls 2b of the sealed container 2 outward through a trimming process, through which the locking jaw 2c has a circular cross section. can

5 is a perspective view of a closed container lid according to a preferred embodiment of the present invention, and FIG. 6 is an exploded perspective view looking at the lower surface of the sealed container lid shown in FIG. 5 .

In addition, FIG. 7 is a cross-sectional view of the sealed container lid shown in FIG. 6 , FIG. 8 is a partial enlarged view of FIG. 7 , and FIG. 9 is a perspective view of the sealed packing shown in FIG. 7 .

Hereinafter, with reference to the drawings, a detailed structure of the lid body 10 will be described.

First, as shown in FIGS. 5 and 6 , the lid body 10 includes an inclined portion 12 formed to be inclined at a predetermined reference inclination angle on the edge of the lid body 10 , and the inclined portion 12 and An inner rib 14 and an outer rib 16 and the like formed at a predetermined interval on the lower surface 12b of the inclined portion 12 to form the packing insertion groove 18 together may be provided.

As shown in FIG. 5 , the inclined portion 12 is preferably formed to be inclined upward from the center to the end of the lid body 10 . However, the present invention is not limited thereto, and the inclined portion 12 may be inclined downward from the center of the lid body 10 to the end thereof.

7 and 8, the upper surface 12a and the lower surface 12b of the inclined portion 12 are preferably formed to be inclined at a reference inclination angle, respectively. Then, the inclined portion 12 may have the same thickness over the entire area, thereby preventing distortion in the inclined portion 12 due to the non-uniform thickness of the inclined portion 12 during molding of the lid body 10 . can be prevented However, the present invention is not limited thereto, and the inclination angle of the upper surface 12a and the inclination angle of the lower surface 12b may be different from each other by a predetermined ratio.

Hereinafter, the inclined portion 12 is formed to be inclined upward from the center to the end of the lid body 10, and the upper surface 12a and the lower surface 12b of the inclined portion 12 are inclined at a reference inclination angle. The present invention will be described as a reference.

6 and 7 , the inner rib 14 is formed to protrude downward of the lid body 10 on the lower surface 12b of the inclined portion 12 . Correspondingly, the outer rib 16 is disposed on the lower surface 12b of the inclined portion 12 so as to be spaced from the inner rib 14 toward the end of the lid body 10 by a predetermined distance in the downward direction of the lid body 10 . is formed to protrude. Each of the inner rib 14 and the outer rib 16 is preferably formed in a closed loop structure, but is not limited thereto.

When the inner rib 14 and the outer rib 16 are formed in this way, as shown in FIGS. 7 and 8 , the inner rib 14 and the outer rib ( In a space surrounded by a specific region located between 16 , the inner surface of the inner rib 14 facing the outer rib 16 , and the inner surface of the outer rib 16 facing the inner rib 14 , the sealed packing A packing insertion groove 18 into which the 30 can be inserted may be formed.

Hereinafter, a specific area located between the inner rib 14 and the outer rib 16 among the entire area of the lower surface 12b of the inclined portion 12 is named the ceiling surface 18a of the packing insertion groove 18, and , a specific area of the inner surface of the inner rib 14 and the inner surface of the outer rib 16 facing each other with the packing insertion groove 18 interposed therebetween will be called the inner surface of the packing insertion groove 18 .

Here, as shown in FIG. 8 , the ceiling surface 18a of the packing insertion groove 18 is composed of the specific region of the lower surface 12b of the inclined portion 12 , and similarly to the inclined portion 12 . It has an inclined structure inclined at a reference inclination angle.

Also, as shown in FIG. 8 , the inner rib 14 may have a longer length than the outer rib 16 . That is, the inner rib 14 extends longer in the lower direction of the lid body 10 than the outer rib 16 , that is, toward the sealed container 2 . Then, only the upper portion of the inner rib 14 facing the outer rib 16 constitutes the packing insertion groove 18 together with the outer rib 16 . However, the present invention is not limited thereto. The inner rib 14 may have the same length as the outer rib 16 , or may have a shorter length than the outer rib 16 .

Hereinafter, a detailed structure of the locking blade 20 will be described with reference to the drawings.

As shown in FIGS. 4 and 8 , the locking blade 20 includes a connection part 22 connecting the end of the locking blade 20 to the end of the lid body 10 so that the locking blade 20 can be folded or unfolded. ) and a locking jaw 24 formed on the lower surface of the locking blade 20 so that it can be separably caught on the lower portion 2d of the locking jaw 2c of the sealed container 2 when the locking blade 20 is folded. ), etc. can be provided.

The number of locking blades 20 to be formed is not particularly limited, and two or more locking blades 20 may be formed at a predetermined interval depending on the shape of the sealed container 2 .

According to this locking blade 20, as shown in FIG. 4, the lid body 10 is seated in the sealed container 2 so that the lid body 10 covers the opening 2a of the sealed container 2 In this state, by folding the locking blades 20 so that the locking jaws 24 of the locking blades 20 are caught by the lower portion 2d of the locking projections 2c of the sealed container 2, the locking blades 20 are locked. can Then, the lid body 10 is fixed to the sealed container (2). At the same time, the upper portion (2e) of the locking projection (2c) presses the sealing packing 30 in the upper direction of the lid body 10, and is sealed with the lid body 10 by the pressurized sealing packing 30 in this way. Between the packing 30 and between the sealing packing 30 and the locking jaw (2c) may be sealed.

Hereinafter, with reference to the drawings, a detailed structure of the sealing packing 30 will be described.

As shown in FIGS. 4 and 8 , the sealing packing 30 includes the insertion part 32 inserted into the packing insertion groove 18 and the locking jaw 24 of the locking blade 20 in the sealed container 2 ) from the insertion part 32 to the outside of the packing insertion groove 18 so as to be in close contact with the upper part 2e of the locking jaw 2c of the sealed container 2 when it is caught in the lower part 2d of the locking jaw 2c of It may include a protruding protrusion 34 and the like. However, the present invention is not limited thereto, and the protrusion 34 may be omitted depending on the locking jaw 2c and other structures of the sealed container 2 . Hereinafter, the sealing packing 30 will be described based on the case in which the protrusion 34 is formed.

The structure of the sealing packing 30 is not specifically limited. For example, as shown in FIG. 9, when the inner rib 14 and the outer rib 16 are formed in a closed loop structure, the sealing packing 30 is preferably formed in a closed loop structure, but this It is not limited.

As shown in FIG. 8 , the insertion part 32 may have a hollow shape in which a first hollow 32a is formed in the center. According to this first hollow (32a), compared to the case in which the insertion portion (32) has a solid solid shape, the insertion portion when the protrusion (34) is pressed by the engaging protrusion (2c) of the sealed container (2). As the displacement amount of 32 is increased, it is possible to easily lock the locking blade 20 to the sealed container 2 even with a small force.

The first hollow 32a is preferably formed so that the partition walls of the insertion part 32 surrounding the first hollow 32a have the same thickness. Through this, it is possible to prevent distortion in the insertion part 32 during molding of the sealing packing 30 due to the non-uniform thickness of the partition walls.

The insertion part 32 is formed to be in close contact with the inner surfaces of the packing insertion groove 18 when it is inserted into the packing insertion groove 18 . To this end, the insertion portion 32 is formed to have a height and width corresponding to the depth and width of the packing insertion groove 18 .

By the way, the ceiling surface 18a of the packing insertion groove 18 has an inclined structure, and among the partition walls of the insertion part 32 , the upper partition wall 32b faces the ceiling surface 18a of the packing insertion groove 18 . When the outer surface of has a planar structure, there is a gap between the upper partition wall 32b and the ceiling surface 18a of the packing insertion groove 18, so that external air flows into the inside of the sealed container 2 through this gap. there is a risk of becoming

To solve this, as shown in FIG. 8 , an inclined surface 32c inclined at the reference inclination angle may be formed on the outer surface of the upper partition wall 32b. Then, the inclined surface 32c of the upper partition 32b and the ceiling surface 18a of the packing insertion groove 18 are parallel to each other, so that the inclined surface 32c of the upper partition 32b is the fabric of the packing insertion groove 18. It can be closely attached to the scene 18a. Through this, the inclined surface 32c has a gap between the lid body 10 and the sealing packing 30 due to the introduction of the inclined portion 12 to the rim of the lid body 10, so that the closed container lid (1) of It is possible to prevent deterioration of sealing performance.

As shown in FIG. 8 , the protrusion 34 may have a hollow shape in which a second hollow 34a is formed in the center. According to this second hollow (34a), when the protrusion (34) is pressed by the engaging projection (2c) of the sealed container (2) compared to the case where the protrusion (34) has a solid shape, the protrusion (34) ) by increasing the amount of displacement, the locking blade 20 can be easily locked in the sealed container 2 even with a small force.

The second hollow 34a is preferably formed so that the partition walls of the protrusion 34 surrounding the second hollow 34a have the same thickness. Through this, it is possible to prevent distortion in the protrusion 34 when the sealing packing 30 is formed due to the non-uniform thickness of the partition walls.

On the other hand, as shown in Figure 8, the first hollow (32a) and the second hollow (34a) is preferably formed separately, but is not limited thereto. That is, the partition wall dividing the first hollow 32a and the second hollow 34a may be omitted so that the first hollow 32a and the second hollow 34a form an integral body.

The protrusion 34 may have a step extending so as to be in close contact with at least one of the lower end of the inner rib 14 and the lower end of the outer rib 16 . For example, as shown in FIGS. 4 and 8 , when the inner rib 14 has a longer length compared to the outer rib 16 , the protrusion 34 is formed at the lower end of the outer rib 16 with the upper surface A first step 34b extending outwardly of the lid body 10 so that the side is in close contact with the lower surface of the locking wing 20 that is locked to the locking jaw 2c of the sealed container 2 at the same time as the first step 34b can have In this case, as shown in FIGS. 4 and 8 , the inner rib 14 is in close contact with one side of the protrusion 34 opposite to the side of the first step 34b that is in close contact with the lock wing 20 . It may have a longer length compared to the outer rib 16 . The protrusion 34 may improve the sealing performance of the sealing packing 30 by increasing the contact area between the lid body 10 and the sealing packing 30 .

In addition, as shown in FIGS. 4 and 8 , the protrusion 34 protrudes from the outer surface of the lower barrier rib 34c among the barrier ribs of the protrusion 34 so as to be in contact with the upper portion 2e of the locking step 2c. It may further have contact protrusions 34d formed. Then, the contact protrusions 34d are in close contact with the upper portion 2e of the engaging projection 2c while being elastically deformed by the engaging projection 2c to increase the contact area between the protrusion 34 and the engaging projection 2c, The sealing performance of the sealing packing 30 can be further improved.

The above description is merely illustrative of the technical spirit of the present invention, and various modifications and variations will be possible without departing from the essential characteristics of the present invention by those skilled in the art to which the present invention pertains.

Accordingly, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention, but to explain, and the scope of the technical spirit of the present invention is not limited by these embodiments. The protection scope of the present invention should be construed by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

1: Airtight container lid
2: airtight container
2a: opening
2b: side wall
2c: jamming jaw
10: lid body
12: inclined part
14: inner rib
16: outer rib
18: packing insertion groove
18a: ceiling surface
20 : Lock Wings
22: connection part
24: lock jaw
30: airtight packing
32: insertion part
32a: first hollow
32b: upper bulkhead
32c: slope
34: protrusion
34a: second hollow
34b: first step
34c: lower bulkhead
34d: contact protrusion

Claims (9)

A closed container lid comprising: a lid body configured to cover the opening of the hermetically sealed container;
The lid body has an inclined portion formed to be inclined at a predetermined reference inclination angle to the edge, and an inner rib and an outer rib formed at a predetermined interval on the lower surface of the inclined portion to form a packing insertion groove together with the inclined portion. do,
The sealed packing has an inclined surface inclined at the reference inclination angle so as to be in close contact with the ceiling surface of the packing insertion groove composed of a specific region of the lower surface of the inclined portion and having an insert inserted into the packing insertion groove, the sealed container lid . According to claim 1,
The upper and lower surfaces of the inclined portion are formed to be inclined at the reference inclination angle, respectively,
The inclined surface is formed to be parallel to the lower surface of the inclined portion, the sealed container lid. 3. The method of claim 2,
The inclined portion is formed to be inclined upward toward the side end of the lid body, the sealed container lid. According to claim 1,
The insert further has a hollow formed in the center,
The inclined surface is formed on the outer surface of the upper partition facing the ceiling surface of the partition walls surrounding the hollow, sealed container lid. 5. The method of claim 4 .
The partition walls are formed to have the same thickness, the sealed container lid. According to claim 1,
The sealed packing further includes a protrusion formed to protrude from the insertion part to the outside of the packing insertion groove so as to be in close contact with the locking jaw. 7. The method of claim 6,
The protrusion has a step formed so as to be in close contact with at least one of the lower end of the inner rib and the lower end of the outer rib, the sealed container lid. 8. The method of claim 7,
The step has a first step formed so that the upper surface is in close contact with the lower end of the outer rib and the side surface is in close contact with the lock wing locked to the locking step at the same time. 9. The method of claim 8,
The inner rib has a longer length than the outer rib so as to be in close contact with one side of the protrusion opposite to the side surface of the first step, the sealed container lid.

Images