KR101004351B1 - Airtight container and method of manufacturing the same - Google Patents

Abstract

PURPOSE: A sealed container and a manufacturing method thereof are provided to have structure, which packing part is formed into one when lid is injected, thereby omitting the work to insert a packing of silicon material in a groove of container cover. CONSTITUTION: A sealed container includes a container main body(1) comprised of single curved part by expanding to the external side and an upper part of the side wall(11) forming an receptive concave part is rounded and a container lid comprising the circumference unit, which neighboring of the upper part covering the receptive concave part is surface adhesive about the curved part of the main body. The container lid is located on the same height with the upper surface of the upper plate. The circumference unit is formed in round curved of opened shape, which is rounded, or lower surface of the circumference is formed in side wall upper end of a container main body. The container cover is comprised of soft predetermined material as a hinge unit(23), which is located in outer side of the circumference unit, double injected.

Description

Airtight container and manufacturing method {AIRTIGHT CONTAINER AND METHOD OF MANUFACTURING THE SAME}

The present invention relates to a hermetically sealed container, and more particularly, to a hermetically sealed container and a method for manufacturing the same, which have improved durability at the lid fastening portion, are easy to assemble, and have improved coupling between the container lid and the main body.

Airtight containers have a variety of sizes and shapes depending on the application. In recent years, a sealed container is preferred to cover the container lid in which the packing is inserted on the upper part of the container body and to provide a sealing force by using a locking wing formed around the container lid.

However, when the container lid and the lock wing are integrally injection molded, a hinge part is formed therebetween, and when the hinge part is folded and retracted, the hinge part easily reaches the fatigue limit and has a problem of weakening the impact.

In order to overcome the weakness of the hinge portion exposed to such repeated bending stress, Korean Patent Registration No. 335718 discloses a technique in which the injection melt flow blocking hole is properly formed so that the weld line generated in the injection process does not occur in the hinge portion. This technique focuses on reducing stress concentration and reducing residual stress in the weld line, one of the causes of fatigue failure, and it can also overcome the limitation of design life due to the limitation of the container material used. Was not.

Accordingly, the present applicant has devised Utility Model Registration No. 347176 to counteract fatigue failure of the hinge portion more fundamentally, and this technique is combined with FIG. 1 as a prior art of the present invention.

1 is a view showing an example of a conventional sealed container, Figure 1a is a cross-sectional view showing a combined state of the sealed container, Figure 1b is a cross-sectional view showing a double injection structure of the hinge portion of the closed container lid.

As shown, the container lid (1) of the closed storage container of Figure 1 is provided with a packing (60) in order to ensure the sealing property in the portion coupled with the edge of the container body (2), a soft resin on the top The hinge portion 22 having the double injection molding 30 is integrally coupled to the lock wing 20 at one end thereof, and the other end thereof has a length 11 corresponding to the length of the lock wing 20. It shows a configuration that is integrally combined with the edge edge 21 extending from).

FIG. 1A presupposes that the upper cover 10 and the locking wing 20 are integrally injection molded. In this process, a narrow hinge portion 22 is formed between the upper cover 10 and the locking wing 20. This is because the lock wing 20 is hinged with the slender hinge portion 22 as the axis, so that repeated bending stress is applied to the hinge portion 22 so that the hinge portion 22 is easily broken by fatigue.

FIG. 1B illustrates a state in which the second injection of a soft resin such as a rubber component resin is carried out to the hinge portion of the lid of the closed container of FIG. 1A, and around the hinge portion 22 of the first injection molded product of the container lid. That is, a soft resin is double-injected and covered on the edge 23 of the upper cover 21, the hinge portion 22 and the connecting portion 23 of the locking wing. Such soft resin may be used any number known in the art as long as it is a soft material that is softer and more elastic than the container material. This enables the use beyond the limit of the fatigue limit of the container lid material, it is possible to have a semi-permanent durability while allowing smooth fastening and disassembly of the lock wing. As shown in the figure, the reinforcing structure of the hinge portion extends from the edge 11 of the upper lid 10 in order to double-inject the soft resin around the hinge portion so that the soft resin is well seated on the container lid. 21 and the hinge portion 22 and the connecting portion 23 is connected to the hinge portion and the locking wing 20 to form a seat in which the soft resin is seated inward.

In addition, Utility Model Registration No. 347176 has been devised as another conventional method for counteracting the fatigue failure of the hinge portion, and this technique is incorporated in FIG. 2 as a prior art of the present invention.

Figure 2 is another example of a conventional sealed container, Figure 2a shows a state in which a hole is formed in the compartment of the container lid, Figure 2b is a coating layer formed integrally with the packing means through a hole formed in the compartment of the container lid The state is shown in cross section.

As shown, the closed container of Figure 2 is integrally formed with a folding portion 30 having a locking means 20 extending to the outside of the lid 10 is easily folded by the folding groove locking means ( 20 is a configuration that is closed while being coupled to the lock means 60 formed in the housing 50 by.

A soft thin coating layer 1 is formed on the upper surface of the outer side or the inner side of the folding groove for folding the folding portion 30, and the soft coating layer 1 is caught at the tip of the folding portion 30. Applying so as to extend to the end 3 prevents the coating layer 1 from falling off. The coating of the coating layer 1 may use a soft material having excellent adhesion with polyethylene, for example, an alestoma or a santoplan when the lid body is molded from polyethylene (PP).

In addition, the soft coating layer 1 of the packing means formed in the interior of the compartment 11 is inserted into the upper end 50a of the housing 50 when the lid 10 is combined with the housing 50 ( 5) punch the hole 4 to the upper side of the compartment 11, and then double injection so that the packing means 5 is integrally formed through the hole 4 so that the applied coating layer 1 falls. At the same time to solve the problem is to solve the additional process for the mounting of the packing means (5).

However, despite the configuration of the hinge portion through the conventional double-injection, when fastening the plastic container lid to the glass container body in a closed container having a four-sided fastening structure, the locking due to the difference in material characteristics There is a problem that the hinge portion of the wing is not easily used for a long time and is easily broken.

In addition, even in the case of the conventional hermetic container as described above to fix the packing of the silicon material in the groove in the lid separately to maintain the airtight inside the container there is a problem that the productivity is low and the labor cost is also increased due to a lot of work.

On the other hand, as shown in Figures 1 and 2, the conventional hermetically sealed container is generally a wall surface of the container body is extended in the vertical upward direction, the coupling groove is formed on the circumferential lower surface of the lid is formed, the container body and the lid By moving the lid of the container arbitrarily to engage the coupling groove is fitted to the top of the container body.

In this case, the user can not see exactly the matching point of the top of the container body and the coupling groove has a hassle to be fitted to move several times to combine the container lid.

The present invention has been made to solve the above-mentioned disadvantages, not the way of inserting the conventional silicone packing in the grooves inside the lid, the double injection into a predetermined material of the soft when the lid injection, the packing portion integrally By having the formed structure, the operation of inserting the silicone packing into the groove of the container lid is omitted, thereby providing a sealed container which reduces productivity and improves labor costs and a manufacturing method of such a sealed container. have.

Another object of the present invention is to improve durability by double-injecting a part of the locking blade and the hinge portion of the lid fastening means with a predetermined soft material to prevent fatigue failure even when the plastic container lid is fastened to the glass container body. It also provides a sealed container and a method of manufacturing the same, which minimizes and improves aesthetics by engraving a pattern or a logo.

Still another object of the present invention is to solve the problem that the foreign matter is caught between the lid and the packing as in the prior art by the packing portion of the container open to the outside easier to clean and more hygienic sealed container and its manufacturing method To provide.

The object of the present invention as described above is to form a container body constituting an open form, the upper portion of the circumferential side wall forming the receiving recess is opened to the outside, and the outer side of the upper plate covering the receiving recess, that is to form a rounded outward A container lid which is surface-adherable to the curved portion of the container body, wherein an upper end of the side wall is formed into a rounded curved portion, the container lid is formed of a predetermined material soft by double injection of at least a portion of the hinge portion, and The middle part of the upper surface of the locking blade located outside the hinge part is made of a soft material by double injection, and the circumferential part of the upper plate located inside the hinge part is formed into a rounded curved surface, and is formed inside the hinge part. An airtight packing is integrally formed by double injection at the lower end of the periphery of the positioned upper plate, and the airtight packing is soft and predetermined Jidoe quality achieved is provided as an open type on the outside, it is achieved by providing a closed container characterized in that the plurality of protrusions formed at the bottom of the hermetic seal has an embossed.

Another object of the present invention is to form a container body such that the upper portion of the side wall forming the receiving recess is rounded outward to form a curved portion; And forming a container lid such that the periphery of the upper plate covering the receiving recess is formed in a circumferential portion that is closely contacted with the curved portion of the container body, and the container lid is formed in such a manner that the circumference is rounded outwardly and opened. It is achieved by providing a method of manufacturing a closed container characterized in that the rounded surface or the bottom surface of the circumference is configured to be parallel to the curved portion formed on the top of the side wall of the container body.

According to the present invention, the container body is formed of a bent portion having a steep inclination as the inner wall surface of the side wall is straight down downward between the curved portion formed on the side wall and the stepped portion formed on the inner wall surface of the side wall below the curved portion. desirable.

The present invention has a structure in which the packing portion is integrally formed during the injection of the lid is omitted the work of fitting the packing of the silicon material in the groove of the container lid, thereby reducing the labor maneuverability has the effect of improving productivity and labor costs.

In addition, the present invention is achieved by the structure of the packing portion of the lid is opened to solve the problem that the foreign matter between the lid and the packing as in the prior art can be provided for easy cleaning and more hygienic container lid.

In addition, the present invention can improve the durability of the hinge by double-injecting a hinge portion connecting the container lid and the lock wing, and a portion of the lock wing with a predetermined soft material, and enhance the aesthetics by double-injecting a soft material of various colors. Will be.

In addition, the present invention can improve the sealing force by making a plurality of protrusions formed in the packing portion in contact with the container body in the process of manufacturing the container lid by double injection.

In addition, the present invention is configured by the container body is composed of a bent portion having a steep inclination as the inner wall surface of the side wall of the side wall between the curved portion formed on the side wall and stepped so as to slash downward straight line to move the container lid several times to the combined position Without the hassle to fit, the container lid itself finds a position where it can be combined with the container body, thereby providing convenience in use.

1 is a cross-sectional view showing an example of a conventional sealed container,
Figure 2 is a cross-sectional view showing another example of a conventional sealed container,
3 is a broken perspective view of the main body and the lid constituting the sealed container of the present invention,
Figure 4a is a cross-sectional view showing a state before coupling of the sealed container of Figure 3,
Figure 4b is a cross-sectional view showing a state after coupling of the closed container of Figure 3,
Figure 5a is a cross-sectional view showing a state before coupling of the sealed container which is another embodiment of the present invention,
Figure 5b is a cross-sectional view showing a state after the combination of the sealed container of Figure 5a,
Figure 6a is a cross-sectional view showing a state before coupling of the sealed container another embodiment of the present invention,
Figure 6b is a cross-sectional view showing a state after the combination of the sealed container of Figure 6a,
7A is a cross-sectional view illustrating a modification of FIG. 4;
7B is a cross-sectional view illustrating a modification of FIG. 5;
7C is a cross-sectional view illustrating a modification of FIG. 6;
8 is a cross-sectional view showing the configuration of a closed container which is another embodiment of the present invention;
Figure 9a is a cross-sectional view showing a modification of the main body constituting the sealed container of the present invention and the state before coupling with the lid,
Figure 9b is a cross-sectional view showing a state after coupling of the closed container of Figure 9a,
10 is a rupture perspective view of the main body and the lid constituting the airtight container according to another embodiment of the present invention;
Figure 11a is a cross-sectional view showing a state before coupling of the closed container of Figure 10,
Figure 11b is a cross-sectional view showing a state after coupling of the closed container of Figure 10,
12 is a broken perspective view of the main body and the lid constituting the airtight container according to another embodiment of the present invention;
Figure 13a is a cross-sectional view showing a state before coupling of the sealed container of Figure 12,
Figure 13b is a cross-sectional view showing a state after coupling of the sealed container of Figure 12;

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the sealed container according to the present invention.

≪ Example 1 >

3 to 4 are views showing the sealed container of the present invention, Figure 3 is a breakaway perspective view of the main body and the lid constituting the sealed container, Figure 4a is a cross-sectional view showing a state before the combination of the sealed container of FIG. 4B is a cross-sectional view illustrating a state after coupling of the sealed container of FIG. 3.

The airtight container in the present invention is characterized in that it is a configuration for reinforcing the hinge portion for repeated rotating operation of the lock blade. To this end, the present invention is based on reinforcing the hinge portion through double injection.

Furthermore, in order to solve the disadvantage that the foreign matter is inserted into the insert portion of the conventional hermetic packing, which is dirty and not easy to clean, the hermetic packing is opened in a manner in which the conventional hermetic packing is inserted into the groove of the lid to maintain hermeticity. It is an object of the present invention to provide a structure capable of maintaining confidentiality and maintaining cleanliness and hygiene.

For this purpose, the present invention provides a method of forming the lid of a container (hereinafter referred to as 'vessel lid') by softening at least a portion of the hinge portion 23, preferably by intermediate injection of the intermediate portion 24 of the hinge portion. It can be composed of a predetermined material. In addition, according to the present invention, a part of the upper surface of the locking blade 22 positioned outside the hinge portion 23 by the double injection, and preferably, the middle portion 25 of the upper surface may be made of a soft material. In addition, the airtight packing 26 may be formed by a soft material at the lower end of the circumferential portion 21 of the container lid 2 located inside the hinge portion 23.

In the present invention, the hinge portion 23 and the parts 24 and 25 and the airtight packing 26 formed of a predetermined material soft by double injection are integrally formed with each other. In the following description, the injection molded product (D) is described.

According to the figure, the airtight packing is provided integrally at the lower end of the circumference 21 of the container lid 2 by double injection, and is open to the outside. As such, the open airtight packing reduces the accumulation of foreign matters compared to the conventional fitting method and can be easily cleaned to maintain cleanliness.

The present invention provides a main body 1 (hereinafter referred to as a 'container main body') of a container corresponding to the open shape of the hermetic packing described above. Since the container main body 1 has the structure which the airtight packing 26 integrally formed in the lower end of the periphery part 21 of the container lid 2 opened by double injection | opening to the outside, it is airtight when closing the container lid 2 Preferably, the packing 26 is in close contact with each other to maintain hermeticity.

As a preferable example of the container body 1, the present invention is configured such that an upper portion of the side wall 11 forming the receiving recess 10 of the container body 1 is rounded outward to have an open shape. In particular, the upper end of the side wall 11 is preferably formed of a rounded curved portion 12.

In addition, the container lid 2 is formed so as to round the outer side, that is, the circumferential portion 21 of the upper plate 20 covering the receiving recess 10, the airtight packing 26 of the container body 1 It is preferable that the circumferential portion 21 is configured as an open rounded curved surface so as to be in close contact with the curved portion 12.

Meanwhile, in the present invention, the airtight packing 26 may be formed with a plurality of protrusions 26a embossed at the bottom to increase the adhesion and the airtightness when the container body 1 and the lid 2 are combined.

Hereinafter, the combination of the airtight container will be described with reference to FIGS. 4A and 4B.

The airtight container of the present invention includes a support protrusion 20a at the bottom of the container lid 2 to support the container body 1 and the container lid 2. The support protrusion 20a supports the container lid 2 mounted on the container body 1, and the container body 1 has a step 13 on which the support protrusion 20a is placed. . In addition, the step 13 is formed inside the side wall 11, that is, the inner wall surface, preferably located below the curved portion 12 formed on the upper side of the side wall (11). The container body 1 and the container lid 2 before being combined are maintained in a state in which the support protrusion 20a and the step 13 are supported as shown in FIG. 4A.

Reference numeral '22a', which is not described in the drawing, is a hook, and reference numeral '12a' is a locking groove.

Combination of the sealed container is locked by pressing the locking hook (22a) in the locking groove (12a) by pressing the lock wing 22 is rotated downward while the container lid (2) on the top of the container body (1) It becomes In this state, the airtight container can be kept airtight by the airtight packing located between the main body 1 and the lid 2.

<Example 2>

Figure 5 shows another example of the sealed container according to the present invention, Figure 5a is a cross-sectional view showing a state before coupling of the sealed container, Figure 5b is a cross-sectional view showing a state after the coupling of the sealed container of Figure 5a.

According to the present embodiment, the airtight packing 26 'may be formed of a predetermined soft material by double injection into the curved portion 12 formed on the upper side of the side wall 11 of the container body 1.

In addition, the container lid 2 comprises at least a portion of the hinge portion 23, preferably the intermediate portion 24 of the hinge portion 23 by a soft injection of a predetermined material, and the hinge portion 23 A part of the upper surface of the locking blade 22 located outside of the upper surface, preferably the middle portion 25 of the upper surface, may be made of a soft material by double injection.

Therefore, the hermetic container of the present embodiment includes the portions 23 and 25 of the hinge portion 23 and the locking blade 22 in which the airtight packing 26 'is formed of a predetermined soft material by the double injection. It is provided integrally on the upper side of the side wall 11 of the container body 1 in a separated state.

In the present embodiment, the airtight packing 26 'may have a plurality of embossed protrusions 26'a formed at the top to increase the adhesion and the airtightness when the container body 1 and the lid 2 are combined.

<Example 3>

Figure 6 shows another example of the sealed container according to the present invention, Figure 6a is a cross-sectional view showing a state before coupling of the sealed container, Figure 6b is a cross-sectional view showing a state after the bonding of the sealed container of Figure 6a. .

In this embodiment, the airtight packings 27 and 27 'can be formed in the container main body 1 and the container lid 2, respectively, which constitute a sealed container. According to the present embodiment, the hermetic container forms an airtight packing 27 made of a soft material by double injection at the lower end of the circumferential portion 21 of the container lid 2 located inside the hinge portion 23. In addition, the airtight packing 27 'is formed of a predetermined soft material by double injection into the curved portion 12 formed on the upper side of the side wall 11 of the container body 1.

Therefore, the airtight packing 27 is integrally formed with the parts 23 and 25 of the hinge portion 23 and the locking blade 22 formed of a predetermined soft material by double injection and at the same time, the airtight packing 27 'is integrally provided on the upper side of the side wall 11 of the container body 1 in a state of being separated from the portions 23 and 25 of the hinge portion 23 and the locking blade 22.

In the present embodiment, the airtight packings 27 and 27 'are preferably disposed inside and outside each other between the container body 1 and the container lid 2. In the drawing, the airtight packing 27 of the container lid 2 is shown to be located outside the airtight packing 27 'of the container body 1, but the reverse arrangement is also possible.

The airtight packings 27 and 27 'disposed inside and outside of each other are preferably spaced apart from each other so that a predetermined gap is provided. This is because the confidentiality can be further increased.

In addition, in the present embodiment, the airtight packings 27 and 27 'are embossed with a plurality of protrusions 27a and 27 respectively at the bottom or the top to increase the adhesion and the airtightness when the container body 1 and the lid 2 are combined. 'a) may be formed.

<Example 4>

FIG. 7 illustrates modifications of the present invention, and FIG. 7A shows the length of the airtight packing 26 shown in FIG. The airtightness of the hermetically sealed container can be improved.

FIG. 7B shows the sealed container of the present invention by lengthening the length of the airtight packing 26 ′ shown in FIG. 5 so as to be formed on the entire upper surface of the curved portion 12 formed on the upper sidewall 11 of the container body 1. Airtightness can be increased.

FIG. 7C shows the entire lower end of the circumference 21 of the container lid 2 and the upper surface of the curved portion 12 of the container body 1 by lengthening the length of the airtight packings 27 and 27 ′ shown in FIG. 6. By forming it in the whole, the airtightness of the airtight container of this invention can be improved.

<Example 5>

8 shows another example of a sealed container according to the present invention, in which at least a part of the hinge portion 23, preferably the intermediate portion 24 of the hinge portion, is formed in a double injection in forming the container lid 2. It can comprise with a soft predetermined material by this. In addition, a part of the upper surface of the lock blade 22 positioned outside the hinge portion 23 by the double injection, preferably both ends of the upper surface may be made of a predetermined material soft, and the hinge portion ( The hermetic packing 26 can be formed by a soft, predetermined material at the lower end of the circumference 21 of the container lid 2 located inside 23.

In the present invention, it is preferable that the hinge part 23 formed of a predetermined material soft by the double injection, and some portions 24 and 25 and the airtight packing 26 of the locking wing 22 are integrally formed with each other. .

In addition, in the present invention, the step 13 formed on the inner wall surface of the container body 1 is recessed so that the support protrusion 20a can be more stably seated when the container lid 2 is placed on the container body 1. It may be rounded to form, or may be configured in a form standing on the curved portion 12 of the container body 1 so that one surface of the support protrusion 20a abuts.

In addition, in the present invention, the hinge portion 23 and the parts 24 and 25 and the airtight packing 26 formed of a predetermined soft material by the double injection are soft materials of various colors. It is desirable to increase the aesthetics by double injection.

<Example 6>

9 is a view showing a modification of the main body constituting the sealed container of the present invention and the coupling relationship with the lid according to the present invention, FIG. 9A is a cross-sectional view showing a state before the main body and the lid are coupled, and FIG. 9B is a main body and the lid Is a cross-sectional view showing a state after coupling.

The container body 1 has the same shape as that of which the upper part of the side wall 11 forming the accommodating recess 10 is rounded outwardly, and the upper end of the side wall 11 is formed of a rounded curved portion 12. The container lid 2 is formed so as to round the outer side, that is, the circumference 21 of the upper plate 20 covering the receiving recess 10, so that the airtight packing 26 is curved at the container body 1. The circumferential portion 21 is configured to have a rounded curved surface in an open shape so as to be in close contact with (12).

In addition, a seating protrusion 20a is provided at a lower portion of the container lid 2 to seat the container lid 2 mounted on the container body 1, and below the curved portion 12 of the container body 1. Thus, the inner wall surface of the side wall 11 is provided with a step 13 in which the seating protrusion 20a is located.

The container body 1 of the present invention has a sidewall 11 between a rounded rounded curved portion 12 formed at an upper end of the sidewall 11 and a step 13 formed below the curved portion 12. The inner wall surface of) is made up of the bent portion 12b which makes a steep slope as if cut down in a straight line. The formation of such a bent portion 12b makes the engagement of the container lid 2 much easier than the container body 1 with only the curved portion 12.

This can be clearly seen through Figs. 9a and 9b, as shown in Fig. 9a, even if the container lid 2 is placed on the upper part of the container body 1, the container lid 2 is curved in the seating protrusion 20a of the lower surface. A slight slip occurs downward along the portion 12. Such slipping leads to a sudden descending by itself when reaching the bent portion 12b, and the seating protrusion 20a reaches the step 13 position as shown in FIG.

As described above, the closed container of the present invention, in which the bent portion 12b is additionally provided in the curved portion 12, moves the container lid 2 several times as in the prior art, without the hassle of adjusting the coupling position (the container lid) 2) Since it finds a position where it can be combined with the container body 1, it becomes more convenient to use.

On the other hand, the form having both the curved portion and the bent portion may be applied in the same manner, although not described separately in the above-described embodiments and other embodiments below.

<Example 7>

10 is a sectional perspective view of the main body and the lid constituting a closed container as another embodiment of the present invention, Figure 11 is a cross-sectional view (a) and (b) showing the state before and after the combination of the closed container of Figure 10 to be.

In the present embodiment, the airtight container covers the container body 1 ′ in which the upper part of the side wall 11 forming the accommodating recess 10 is rounded outward to cover the upper part of the accommodating recess 10. It consists of a container lid 3 with a top plate 30.

The container body 1 'is formed into a rounded curved portion 12 so that the upper end of the side wall 11 is rounded outward, and the container lid 3 has a circumferential portion 31 formed on the outside of the upper plate 30. It is preferable to form rounded outward so as to correspond to the rounded curved portion 12 of the container body 1 '.

An airtight packing 37 is coupled to the bottom of the circumferential portion 31 in each direction in order to increase adhesion and airtightness when the container body 1 ′ and the lid 3 are coupled to each other. In order to engage the hermetic packing 37, the present invention forms the fixing projections 31a facing each other at predetermined intervals on the bottom surface of the circumference 31, and between the fixing projections 31a of the hermetic packing 37. A fitting groove 31b for inserting and fixing is formed.

In addition, the sealed container of the present invention is provided with a support protrusion (30a) in the lower portion of the container lid (3) to support between the container body (1 ') and the container lid (3). The support protrusion 30a supports the container lid 3 mounted on the container body 1 ', and the container body 1' has a step 13 on which the support protrusion 30a is placed. Equipped. In addition, the step 13 is formed inside the side wall 11, that is, the inner wall surface, preferably located below the curved portion 12 formed on the upper side of the side wall (11). The container body 1 ′ and the container lid 3 before being joined are maintained in a state in which the support protrusion 30a and the step 13 are supported as shown in FIG. 10A.

Reference numeral '32a', which is not described in the drawing, is a hook, '12a' is a locking groove, '32' is a locking wing, and '33' represents a hinge portion, respectively.

The combination of the sealed container of the present invention according to Figure 10 and 11a to 11b is rotated by pressing the locking wing 32 downward in the state that the container lid (3) on the top of the container body (1 ') locking hook ( 32a) is caught by the locking groove 12a and is locked. In this state, the airtight container is in close contact with the curved portion 12 in a state where the airtight packing 37 located between the main body 1 'and the lid 3 is pressed by a strong pressure, thereby preventing airtightness of the accommodation recess 10. It is possible to maintain and safe storage of the contents therefrom.

<Example 8>

FIG. 12 is a sectional perspective view of a main body and a lid constituting the airtight container of another embodiment of the present invention, and FIG. 13 is a cross-sectional view showing a state before and after the airtight container of FIG. .

In the present embodiment, the airtight container covers the container body 1 ″ having the upper portion of the side wall 11 forming the accommodating recess 10 and is opened outward to cover the upper portion of the accommodating recess 10. It consists of a container lid 4 provided with a top plate 40.

The container body 1 ″ is formed into a rounded curved portion 12 so that the upper end of the side wall 11 is rounded outward, and the container lid 4 has a periphery of the upper plate 40 covering the receiving recess 10. It is preferable that the circumferential portion 41 is in close contact with the curved portion 12 of the container body 1 ″.

In particular, in the case of the circumference portion 41, it is preferable that the bottom surface is configured to be horizontal with respect to the curved portion 12. In this case, the top surface of the upper plate 40 and the bottom surface of the circumference portion 41 are generally positioned at the same height. do.

An airtight packing 47 is coupled to the bottom of the circumference 41 in each direction to increase the adhesion and airtightness when the container body 1 ″ and the lid 4 are coupled. In order to engage the hermetic packing 47, the present invention forms opposite fixing protrusions 41a at predetermined intervals on the bottom surface of the circumferential portion 41, and between the fixing protrusions 41a of the hermetic packing 47. A fitting groove 41b for inserting and fixing is formed.

The airtight container of the present invention is provided with a support protrusion 40a at the bottom of the container lid 4 to support between the container body 1 ″ and the container lid 4. The support protrusion 40a supports the container lid 3 placed on the container body 1 ″, and the container body 1 ″ has a step 13 on which the support protrusion 40a is placed. Equipped. In addition, the step 13 is formed inside the side wall 11, that is, the inner wall surface, preferably located below the curved portion 12 formed on the upper side of the side wall (11). The container body 1 ″ and the container lid 3 before being joined are maintained in a state where the support protrusion 40a and the step 13 are supported as shown in FIG. 12A.

Reference numeral '42a', which is not described in the drawings, is a hook, '12a' is a locking groove, '42' is a locking wing, and '43' represents a hinge portion, respectively.

12 and 13a to 13b is coupled to the closed container of the present invention by pressing the locking hook (42) by rotating the lock wing 42 in a state where the container lid (4) is placed on top of the container body (1 ″) ( 42a) is caught by the locking groove 12a and is locked. In this state, the airtight container is in close contact with the curved portion 12 in a state where the airtight packing 47 located between the main body 1 ″ and the lid 4 is pressed by a strong pressure, thereby preventing airtightness of the accommodation recess 10. It is possible to maintain and safe storage of the contents therefrom.

On the other hand, the container body in the present invention has been described as an example of a glass material, both the container body and the container lid may be composed of various plastic or synthetic resin materials such as polyethylene or polypropylene, if the container lid is formed of polyethylene The soft certain material may be configured by selectively using a soft material having excellent adhesion to polyethylene, for example, Alessoma and Santoplan, and mixtures or other various compounds thereof.

As described above, the present invention has a structure in which the packing part is integrally formed during injection of the lid, thereby eliminating the work of inserting the packing of the silicon material into the groove of the container lid, thereby reducing the labor time and improving productivity and reducing labor costs. You can do it.

In addition, the present invention by the structure of the packing portion of the lid is opened to solve the problem that the foreign matter between the lid and the packing as in the prior art is easy to clean and can provide a more hygienic container lid.

In addition, the present invention improves the durability of the hinge part by double-injecting a part of the container lid and its fastening portion, that is, the container lid and the wing portion, and the hinge portion connecting them with a predetermined soft material, and by double-injecting the soft material of various colors Aesthetic senses can be enhanced.

In addition, the present invention is configured by the container body is composed of a bent portion having a steep inclination as the inner wall surface of the side wall of the side wall between the curved portion formed on the side wall and stepped so as to slash downward straight line to move the container lid several times to the combined position Without the hassle to fit, the container lid itself finds a position where it can be combined with the container body, thereby providing convenience in use.

2,3,4: container lid 10: accommodating main part
11: side wall 12: curved portion
12a: hanging groove 13: step
21,31,41: circumference 22,32,42: lock wing
20a, 30a, 40a: Supporting protrusions 22a, 32a, 42a: Hanging hook
23,33,43: hinge portion 24: intermediate portion
25: middle part 26,26 ', 27,27', 37,47: airtight packing
26a, 26'a, 27a, 27'a: projection D: injection molding

Claims (20)

delete delete delete A container body rounded at the top of the side wall forming the receiving recess and extending outward to form a single curved portion, and
A container lid formed around a top portion of the upper plate covering the accommodation recess, the peripheral lid being in close contact with the curved portion of the container body;
The container lid is formed as a rounded curved surface of the shape of the circumference rounded outward or the bottom of the circumference is horizontal to the curved portion formed on the upper side of the side wall of the container body and is located at the same height as the upper surface of the upper plate ,
The container lid is a sealed container, characterized in that at least a portion of the hinge portion located outside the circumference portion is made of a predetermined soft material by double injection. The method of claim 4, wherein
The container lid is a sealed container, characterized in that the upper middle portion of the upper surface of the locking blade located on the outside of the hinge portion is made of a soft material by double injection. The method of claim 4, wherein
The container lid is a sealed container, characterized in that the airtight packing is integrally formed by a double injection into the lower end of the circumference of the upper plate located inside the hinge portion. The method of claim 6,
The hermetic packing is made of a predetermined material soft, hermetically sealed container characterized in that it is provided in an open form on the outside. The method of claim 6,
The hermetic packing is a sealed container characterized in that a plurality of protrusions embossed at the bottom formed. The method of claim 4, wherein
The container body is a hermetically sealed container characterized in that the airtight packing is formed integrally with a predetermined material soft by double injection into the curved portion formed on the top of the side wall. The method of claim 4, wherein
The airtight packing is formed of a predetermined soft material by double injection at the lower end of the periphery of the container lid located inside the hinge portion, and is also made of a soft predetermined material by double injection at the curved portion formed on the upper sidewall of the container body. An airtight container comprising an airtight packing. The method of claim 10,
The hermetic packing is a sealed container, characterized in that disposed between the inside and the outside of the container body and the container lid. 12. The method of claim 11,
The hermetic packing disposed in the inner and outer side is spaced apart from each other so that a predetermined gap is provided. The method of claim 10,
The hermetic packing is lengthened so as to be formed on the entire lower end of the circumference of the container lid, and further formed on the entire upper surface of the curved portion formed on the upper side wall of the container body. A container body rounded at the top of the side wall forming the receiving recess and extending outward to form a single curved portion, and
A container lid formed around a top portion of the upper plate covering the accommodation recess, the peripheral lid being in close contact with the curved portion of the container body;
The container lid is formed as a rounded curved surface of the shape of the circumference rounded outward or the bottom of the circumference is horizontal to the curved portion formed on the upper side of the side wall of the container body and is located at the same height as the upper surface of the upper plate ,
The container lid is a sealed container characterized in that the fixing projection and the air tight packing is formed between the fixing projections and the fixing projections opposed to each other at predetermined intervals on the bottom surface of the circumferential portion inserted. A container body rounded at the top of the side wall forming the receiving recess and extending outward to form a single curved portion, and
A container lid formed around a top portion of the upper plate covering the accommodation recess, the peripheral lid being in close contact with the curved portion of the container body;
The container lid is formed as a rounded curved surface of the shape of the circumference rounded outward or the bottom of the circumference is horizontal to the curved portion formed on the upper side of the side wall of the container body and is located at the same height as the upper surface of the upper plate ,
The container lid is provided with a seating protrusion at the bottom, the container closed, characterized in that the stepped projection is formed in the interior of the container body is located. 16. The method of claim 15,
The stepped container is characterized in that formed on the inner wall surface of the side wall under the curved portion. 17. The method of claim 16,
The stepped portion is formed in a concave round shape so that the seating protrusions can be stably seated when the container lid is raised on the container body, or in a form erected with respect to the curved portion of the container body such that one side of the seating protrusions abuts. Hermetic container, characterized in that configured. 16. The method of claim 15,
The container body is characterized in that the container consisting of a bent portion having a steep inclination, as the inner wall surface of the side wall is cut down straight line between the curved portion formed on the side wall and the step. As a method for producing a sealed container according to any one of claims 4 to 18,
Forming a container body such that the top of the sidewall forming the receiving recess is rounded and extends outward to form a single curved portion; And
And forming a container lid such that the periphery of the upper plate covering the receiving recess is a circumferential portion that can be brought into close contact with the curved portion of the container body,
The container lid is a manufacturing method of the closed container characterized in that the circumference is rounded outward to form a round curved surface of the open shape or the bottom surface of the circumference is parallel to the curved portion formed on the top of the side wall of the container body. . The method of claim 19,
The container body is characterized in that the container is formed of a bent portion having a steep inclination as if the inner wall surface of the side wall is sharply lowered between the curved portion formed on the side wall and the stepped portion formed on the inner wall surface of the side wall below the curved portion. Method for producing a container.

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