KR20130001718A - A cover assembly for airtight container - Google Patents

Abstract

PURPOSE: A lid assembly for a sealed container is provided to improve the structure of a lid assembly to integrate a lid body with lock wing part by molding with a different kind of materials. CONSTITUTION: A sealed container is provided on the rim of the opened upper part with a hanging projection. A lid body(210) is formed by plastic injection molding to cover the upper part of a sealed container, and with an embedded-hanging sill along the edge of the upper part of the lid body. An edge part(222) wraps around the edge of the lid body and has a packing groove(221) formed with a band shape on the edge of the bottom surface. A lid-edge component(220) is equipped with a lock wing(224) to elastically hang on a latching protrusion of the sealed container. A silicon packing(230) is installed on the packing groove of the lid-edge component to closely contact with the opened top of the sealed container. The lid body of a lid assembly(200) is molded with a transparent plastic resin. The lid-edge component of the lid assembly is molded with polypropylene resin having ductility.

Description

Lid Assembly for Airtight Containers {A COVER ASSEMBLY FOR AIRTIGHT CONTAINER}

The present invention relates to a lid assembly for a sealed container; More specifically, it relates to a "sealing container lid assembly" that can be applied to the locking function to safely store food without odor and moisture leakage.

In general, when food is stored in a refrigerator or the like, its own unique smell and moisture is leaked out, so that food is stored in an airtight container to prevent it. Such a conventional hermetic container consists of a container body with an open top, and a lid provided with a lock wing to open and close the container body. The container body is injection molded in a square or cylindrical shape using synthetic resin as a raw material, and a storage space is formed therein. In addition, the open end of the side wall of the container body is provided to protrude a locking projection for engaging the locking wing. And the locking wing is made integrally rotatable outward along the edge of the lid, each is provided with a locking jaw to be caught by the engaging projection. Therefore, after covering the lid on the upper portion of the container body and pressing down the locking wings to each side, the locking jaw is elastically coupled to the locking projection of the container body to lock the lid securely. When the locking wing is lifted upward, the locking jaw restraint is released to open the lid.

However, in the conventional hermetically sealed container, the container body made of synthetic resin (PP) is easily discolored by the contents stored, and recently, the purchasing power of the product is deteriorated due to the negative image of the environmental hormone unique to the synthetic resin. In particular, the container body and the lid material is a polypropylene (polypropylene; also referred to as PP) which is a thermoplastic resin obtained by polymerizing propylene, which has excellent ductility and poor transparency.

In recent years, tritan resins having excellent transparency without causing environmental hormones are also used. This tritan resin is a new eco-friendly material newly developed by the US company Eastman Chemical. It is a pure poly raw material that does not contain any harmful plasticizers, including bisphenol-A (BPA), an environmental hormone suspected substance. It has all the advantages (transparency) of plastic and glass, so it is used in airtight container products. However, the tritan resin is excellent in transparency but not ductile, and thus cannot be applied to a lid product having a locking wing. That is, when the "lid product with a lock wing is integrally formed" repeatedly used to be molded with a tritan resin, the snap-hinge portion of the lock wing is easily broken.

For this reason, in recent years, a container main body is made of a tritan resin as a raw material, and a lid having a locking wing is made of a product made of polypropylene (PP) resin as a raw material; For consumers, the lid is made of polypropylene (PP) material, losing overall product purchasing power.

The present invention is to solve this problem; An object of the present invention is to improve the structure of the lid assembly to integrate the lid body and the locking wing parts with different materials, can produce a variety of products and excellent transparency and eco-friendly transparent resin material (tritan, etc.) It is to provide a "sealing container lid assembly" that can be applied effectively.

In addition, another object of the present invention can be applied to a new tritan material having both the advantages of plastic and glass to the sealed container lid while integrating the lock wing that requires ductility, the "capsule assembly for sealed containers can also be implemented. It is to offer.

According to an aspect of the present invention, A lid assembly for a closed container that can open and close the closed container provided with a locking projection on the open upper edge;

The lid assembly; A lid body which is injection molded through a synthetic resin so as to cover an upper portion of the sealed container, and a buried body-hanging jaw is formed in a belt shape along an edge thereof; After inserting the lid body into the synthetic resin injection mold, the injection molding is carried out through synthetic resin to cover the edge of the lid body, while the buried-protrusion of the lid body is embedded, while the edge of the lid body wraps around the bottom of the packing groove. A lid-border member formed integrally with the band portion and a snap hinge portion at regular intervals at the edge of the edge portion, and having locking wings to elastically catch the locking protrusion of the airtight container; A silicon packing installed in the packing groove of the lid-border member to be in close contact with the open upper portion of the sealed container; .

In addition, the present invention is the lid body of the lid assembly is molded of a transparent synthetic resin; The lid-border member of the lid assembly is formed of a polypropylene resin having ductility.

According to the "sealing container lid assembly" according to the present invention made of a configuration as described above; By forming the lid assembly through the tritan resin, which has the advantages of plastic and glass, and integrating the lid-border member with the locking wing therein, it is possible to produce a variety of products with different materials and has excellent transparency and eco-friendliness. Tritan resin, which is a material, has an advantage that can be effectively applied to the lid assembly.

Further, according to the "sealing container lid assembly" according to the present invention; The eco-friendly transparent resin such as Tritan new material, which has both the advantages of plastic and glass, can be effectively applied to the lid of the airtight container while integrating the lock wing that requires ductility, and the locking function can be realized. Applying the lid-border member made of various colors has the advantage of differentiating the product.

1 shows a lid assembly according to the present invention applied to a rectangular sealed container.
2 is a perspective view of a lid assembly for a sealed container according to the present invention.
3 is a cross-sectional view taken along line III-III of FIG. 2, which is a cross-sectional view of a lid assembly for a sealed container according to the present invention.
4 is a perspective view showing the cap body of the lid assembly according to the present invention.
5 is a cross-sectional view taken along the line V-V of Figure 4, showing a cross-sectional structure of the lid body according to the present invention.
Figure 6 is a perspective view showing an extract of the lid-border member of the lid assembly according to the present invention.
7 is a cross-sectional view taken along the line VII-VII of Figure 6, showing a cross-sectional structure of the lid-border member according to the present invention.
8 is a cross-sectional view showing a state of use of the closure container lid assembly according to the present invention.

Hereinafter, one preferred embodiment according to the present invention will be described in detail with reference to the accompanying drawings. Briefly explaining the accompanying drawings, Figures 1 to 7 show the configuration of the lid assembly according to the invention, Figure 8 shows the state of use of the lid assembly according to the invention.

<Description of configuration of lid assembly for hermetic container according to the present invention>

1 and 2; The lid assembly 200 for the closed container according to the present invention can open and close the top of the closed container 100 while applying a locking function to the closed container 100 is provided with a locking projection 110 in the form of an outward flange on the open upper edge. As it is, the lid body 210 which is injection molded through a synthetic resin to cover the upper portion of the sealed container 100, and formed by synthetic resin to wrap along the edge of the lid body 210 and a plurality of lock wings on the edge 224 is formed of a lid-border member 220 and a silicon packing 230 disposed along the lower edge of the lid body 210.

The lid assembly 200 is molded and integrated through a heterogeneous material in which the lid body 210 and the lid-border member 220 are not fused, and the detailed structure of each component is as follows.

First, referring to FIGS. 3 to 5; The lid body 210 is injection molded through a synthetic resin so as to cover the upper portion of the airtight container 100, and a lip-filling-protrusion 211 in the form of a strip is provided along the edge thereof. In the embodiment of the present invention, the lid body 210 is made of a plate type that can cover the upper portion of the closed container 100 in the horizontal direction, the material of which is applied tritan resin, an environmentally friendly new material. The lid body 210 may be applied to the tritan resin having both the advantages of plastic and glass because the locking wing 224 portion requiring ductility is separately molded as described below. And the buried-protrusion 211 is formed to protrude along the center of the outer side of the edge of the lid body 210, this is to more solidify this when the double injection molding of the lid-border member 220. In the embodiment of the present invention, the buried-protrusion 211 is formed in the shape of the lip to form a hemispherical jaw in the vertical direction at the end, this is to more tightly integrate with the lid-border member 220.

3 and 6 and 7; The lid-border member 220 constituting the lid assembly 200 is also manufactured through a synthetic resin injection mold. That is, after inserting the lid body 210 made of tritan resin into a synthetic resin injection mold, the lid-border member 220 is injection-molded through a synthetic resin to surround the edge of the lid body 210 in a ring shape. , The lid-border member 220 surrounds the edge of the lid body 210 while the buried protrusion 211 of the lid body 210 is embedded therein, and a packing groove 221 is formed at the edge of the lower surface of the lid body 210. Lock portion 222 and the lock is formed integrally through the snap hinge portion 223 at regular intervals on the edge of the edge portion 222 and can be elastically caught on the locking projection 110 of the sealed container 100. Consisting of wings 224. A locking hole 225 (see FIG. 2) is perforated in the locking wing 224 to be elastically fitted to the locking protrusion 110 of the sealed container 100.

In the embodiment of the present invention, the lid-border member 220 is formed of a polypropylene resin that can exert excellent ductility in the snap hinge portion 223, which is formed of a lid body 210 primarily formed of tritan resin 2 It is molded after placing the insert in the secondary injection mold. In addition, the lid-border member 220 has a shrinkage change of about 12/1000 in the process of being cured after being molded due to the characteristics of the material, and the edge portion 222 of the lid-border member 220 by such shrinkage change. ) Is firmly integrated into the edge portion of the lid body 210 is injection molded before the separate adhesive member.

As described above, the silicon packing 230 is accommodated in the packing groove 221 of the lid-border member 220 to be in close contact with the open top of the sealed container 100, whereby the sealed container ( 100) can be sealed.

As a result, when the lid assembly 200 is configured to have such a structure; The lid body 210 is first molded from tritan, an eco-friendly transparent material that retains the advantages of plastic and glass, and the insert is placed in the injection mold of the lid-rim member 220. By forming the lid-border member 220 with a polypropylene resin capable of exhibiting ductility, the lid body 210 and the locking wing 224 portion can be made of different materials.

Therefore, by producing a lid-border member 220 by changing the color, it is possible to produce a variety of products of the lid assembly 200 of the airtight container 100, and to effectively apply tritan resin which is excellent in transparency and eco-friendly material. Can be. In particular, while the tritan new material can be applied to the closed container 100, the lid 200, it is also possible to implement a locking function by integrating the lock wing 224 that requires ductility.

Instructions for Use of Lid Assembly According to the Present Invention

Next, the use state of the lid assembly for a closed container according to the present invention configured as described above will be described with reference to FIG.

First, when covering the lid assembly 200 according to the present invention on top of the airtight container 100, an open upper edge of the airtight container 100 is disposed on the edge of the lid-rim member 220, the silicon packing 230 Contact with

In such a state, when the locking blades 224 of the lid-border member 220 are pressed downward, the snap hinge 223 is pivoted and fixed to the locking protrusion 110. At this time, since the locking blades 224 are fixed while being elastically deformed, the locking state is not released unless an artificial force is applied.

On the other hand, when holding the locking blade 224 and lifted it upwards, the locking portion of the locking blade 224 is elastically deformed and exits from the locking protrusion 110. Therefore, the locked state of the lock wing 224 is released, so that the airtight container 100 can be easily opened.

On the other hand, in the embodiment of the present invention, the lid assembly for the sealed container has been described in a square type, but not limited to this, the technical idea of the present invention can be applied to the lid assembly of the circular shape. In addition, the cross-sectional shape of the buried-protrusion 211 of the lid body 210 may be configured in various forms.

100 .. Airtight container 110 .. Jamming protrusion
200. Lid assembly 210. Lid body
211. Landfill-protrusion 220. Lid-edge member
221..Packing groove 222.Border
223. Snap hinge 224. Lock wing
230..Silicone Packing

Claims (2)

In the lid assembly for a closed container that can open and close the closed container 100 is provided with a locking projection 110 on the open upper edge;
The lid assembly 200;
A lid body 210 which is injection-molded through synthetic resin to cover the upper portion of the hermetic container 100, and the buried-hanging jaw 211 is formed to have a band shape along an edge thereof;
After inserting the lid body 210 into a synthetic resin injection mold, injection molding is performed through synthetic resin to cover the edge of the lid body 210, and the buried-protrusion 211 of the lid body 210 is embedded. Surrounding the edge of the lid body 210 and the edge of the lower surface of the packing groove 221 is provided in the form of a band through the edge portion 222, and the snap hinge portion 223 at regular intervals on the edge of the edge portion 222 A lid-border member 220 integrally formed with locking wings 224 so as to be elastically caught by the locking projection 110 of the hermetic container 100;
A silicon packing 230 installed in the packing groove 221 of the lid-border member 220 to be in close contact with the open upper portion of the airtight container 100; Lid assembly for a closed container characterized in that it comprises. The method of claim 1,
The lid body 210 of the lid assembly 200 is formed of a transparent synthetic resin;
The lid-border member 220 of the lid assembly 200 is a lid assembly for a closed container, characterized in that molded in a polypropylene resin having a ductility.

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