KR100999937B1 - A food container - Google Patents

Abstract

PURPOSE: A double connection container for the food custody for integrating an internal vessel manufactured to the stainless thin plate is provided to simplify an operation process and drastically reduce the material cost. CONSTITUTION: A double connection container for a food custody includes an internal vessel(300) and an outer container. The internal vessel included a bottom unit of the square having the corner of the round shape the internal vessel is manufactured through the stainless thin plate, and is parked according to four side tangent section of the bottom part to the upper is included and it is manufactured to the square container shape in which the corner section separates. A padding fixing unit(321) bent according to the side end of the side walls to outside the level difference A-frame is formed.

Description

Double Bonding Container for Food Storage {A FOOD CONTAINER}

The present invention relates to a double bonding container for food (food) storage, and more particularly to a double bonding container for food storage that can be integrally bonded integrally with the outer container of the synthetic resin by inserting the inner container made of stainless steel sheet. It is about.

In general, when the food is stored in a refrigerator or the like, its own unique smell and moisture is leaked out, so that the food is stored in a storage container that can be sealed through a lid provided with a lock handle to prevent this. Such a conventional storage container is formed in a rectangular cylinder shape of the upper opening through the synthetic resin, the locking projection is provided on the upper side of the side wall to be locked while the locking handle of the lid is elastically deformed. {Usually, the storage container used for food storage through a refrigerator or kimchi refrigerator is composed of a rectangular cylinder with an open top, which is to maximize the storage space of the refrigerator or kimchi refrigerator.} The storage container is made of synthetic resin, so the inner surface is easily discolored by the contents of the storage, and the purchasing power of the product is falling due to the negative image of the environmental hormone unique to the synthetic resin.

To solve this drawback; Recently, a storage container product having a small outward flange at the upper end by deep drawing a stainless steel plate is also commercially available. That is, the metal square container conventionally used for food storage, as shown in Figure 1, the blanking step (S1) for blanking the stainless steel plate 1, which is the material of the container in the form of a disc, and a deep drawing press device (not shown) After the container forming step (S2) for forming the container (2) with a blank metal plate (1) through the), and after the container forming step (S2) to trim the container (1) as a post-treatment and production step It is produced through a trimming step (S3) and the like. In the container forming step S2, the container 2 having the outward flange 3 integrally formed along the upper edge is formed through a plurality of deep drawing processes. The outward flange 3 is integrally formed at the top of the metal container 1 to apply a synthetic resin lid (not shown) having a locking function through the flange 3.

However, since the conventional metal square container 2 is manufactured by a plurality of deep drawing processes through a deep drawing press device, it is difficult to manufacture a deep and large size product, and it is produced and sold mostly as a small product due to low productivity. However, these small products also have the disadvantage of being sold as very expensive products. In particular, since the metal square container 2 is manufactured through a multi-stage deep drawing process, a thick stainless steel plate 1 should be selected as a container material, which requires a considerable material cost.

In fact, in order to produce the metal container (2) product through three or more drawing processes, a stainless steel plate (1) having a thickness of at least 0.8 to 1.2 mm should be used as a container material, and this container material is a significant portion of the production cost. Occupy.

In addition, as shown in FIG. 2, in order to prevent the metal square container 4 from being concave or convex, a separate bead part 5 may be formed on the wall to reinforce bending stiffness. 5) The additional process for molding causes a rise in product price.

The present invention is to solve this problem; An object of the present invention is to prepare the inner container through a stainless steel sheet in advance and insert the insert into the injection mold, and then by injection molding to integrate the outer container therein, the container body is made of a double-wall structure through the metal and synthetic resin insulation Of course, it is possible to further improve the cold storage properties, and the inside is made of stainless steel plate, so that it is not discolored by the foods stored and can be avoided from the negative image of environmental hormones unique to synthetic resins. It is.

In addition, another object of the present invention is to combine the outer container through a synthetic resin to the outside of the inner container made of stainless steel in advance through the injection molding process, integrally configured, can easily reduce the manufacturing cost by making the inner container simply It does not require a separate assembly process with the external container to provide a double junction container for food storage that can increase the work productivity.

In addition, another object of the present invention is to easily fabricate the inner container through the stainless steel sheet to be integrally bonded to the outer container to simplify the work process and significantly reduce the material cost, as well as products of deep and large size It is to provide a double junction container for food storage that can be easily produced.

According to an aspect of the present invention, In the double junction container for food storage consisting of a rectangular cylindrical shape of the top open to be covered through the lid;

The double junction container; It is manufactured through a stainless steel sheet, and has a rectangular bottom portion having a rounded corner and four wall portions formed upright along a four-sided straight section of the bottom portion, and are manufactured in a rectangular cylindrical shape in which corner portions are separated. An inner container provided with a metal-border member bent outward along upper ends of the wall portions; After inserting the inner container into a synthetic resin injection mold, the inner container is formed through a synthetic resin to cover the outside of the inner container, and side edges of the inner container wall parts are fixed to a wall corner and the inner container is fixed to a wall top. The outer edge of the metal-border portion of the landfill is fixed and includes a resin-border portion to which the lid can be seated and coupled; The inner container is made of stainless steel thin plate is characterized in that it is integrally bonded when the injection molding of the outer container.

The present invention also provides When the outer container is formed on the wall portions of the inner container, the buried-fixed portion is bent to be stepped outwards along the side end so as to be easily embedded in the wall corner of the outer container.

The present invention also provides A first curling portion bent in a U-shaped cross section from the upper edge of the inner container wall surface portion to an outer side so that the metal-rim member surrounds the outer surface of the resin-rim portion, and the inner container wall surface portion at the end of the first curling portion. A second curling portion bent to maintain a predetermined distance from the wall surface portion of the inner container while being inclined upwardly; The resin-border portion of the outer container is filled with a synthetic resin in the space between the outer side of the first curling portion of the metal-border member and the wall portion of the inner container, and the end of the second curling portion is fixed to landfill.

According to the double junction container for food storage according to the present invention made of a configuration as described above; By processing the stainless steel sheet and manufacturing the inner container, and placing it in the insert injection mold, and insert-molding and bonding the outer container integrally, the work process can be simplified and material cost can be greatly reduced, and mass production is possible. {If you make a double junction container with the above configuration, you can also produce deep and large large products at low cost, such as large kimchi storage can be used for kimchi refrigerator, and compared with the deep drawing process This can reduce the processing cost by 40-50%.}

In addition, according to the present invention; The double junction container is manufactured by pre-fabricating the inner container through a stainless steel sheet and then inserting the insert into an injection mold and then injection molding the outer container therein. As a result, the double-bonding container is made of a double-walled structure in which a metal and a synthetic resin are bonded together so as to have a double-wall structure, and furthermore, it is possible to further improve heat retention / cold-keeping, and the food is contained in the stainless steel inner container so that it is not discolored. There is an advantage to escape from the negative image of.

In addition, according to the present invention; The outer container made of synthetic resin is integrally formed by insert injection on the outside of the inner container made of stainless steel sheet, so that the productivity of the work can be increased because the separate assembly process of the inner container and the outer container is not necessary and the manufacturing cost is greatly increased. {In practice, according to the present invention, since it is possible to manufacture an inner container through a stainless steel sheet having a thickness of about 0.3 to 0.5 mm, it is approximately compared to a deep drawing material (material thickness of 0.8 to 1.2 mm). Material costs can be reduced by 40-50%}.

In addition, according to the present invention; The second curling part, which can be locked by the locking handle, is bent outwardly to have a round cross section along the upper end of the inner container wall, and is embedded in the resin-border part (injection) at the upper end of the outer container, thereby making it heterogeneous. The inner / outer container is more firmly integrated so that no foreign matter is caught in the gap between them, and the locking handle of the lid can be secured and easily locked to the second curling part.

 In addition, according to the present invention; Since the metal-border member and the resin-border part having a round cross section are formed in the form of a band along the edge of the upper part of the double bonding container, the appearance of the product is not only beautiful but also can be easily cleaned and doubled even when food is contained. There is an advantage that can easily move the bonding container.

Figure 1 schematically shows a manufacturing process of a conventional metal container.
2 is a cross-sectional view showing a conventional metal container.
3 is a perspective view showing a double bonding container according to the first embodiment of the present invention.
Figure 4 is a perspective view showing an extract of the inner container constituting a double junction container according to the first embodiment of the present invention.
5 is an exploded view of an inner container obtained on a stainless steel plate through a blanking process for manufacturing the inner container according to the first embodiment of the present invention.
FIG. 6 is a cross-sectional view taken along line VI-VI of FIG. 4, and FIG. 7 is a cross-sectional view taken along line VI-X of FIG. 6, showing a state of manufacturing an inner container according to the first embodiment of the present invention.
8 is a perspective view showing a double bonding container according to the first embodiment of the present invention.
FIG. 9 is a cross-sectional view taken along the line VII-VII of FIG. 8, and FIG. 10 is a cross-sectional view taken along the line VII-X of FIG.
11 and 12 are cross-sectional view showing a state of use of the lid through the locking handle to the double junction container according to the first embodiment of the present invention.
Figure 13 shows a double junction container according to a second embodiment of the present invention.

Hereinafter, one preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. 3 to 10 show the structure of a double junction container according to the first embodiment of the present invention, Figures 11 and 12 are views of the double junction container according to the first embodiment of the present invention It shows the state of use.

<Description of the configuration of the double junction container according to the first embodiment of the present invention>

Referring to FIG. 3; The double junction container 200 for food storage according to the first embodiment of the present invention is an inner container 300 manufactured by blanking and forming a stainless steel sheet, and synthetic resin so as to surround the outer container 300. Molded and manufactured through the resin-border portion 410 is composed of a double, including the outer container 400 made integrally. And the double junction container 200 may be applied to the lid 100 having a locking handle 130 to cover its opening, the detailed structure of each component is as follows.

First, the lid 100 is to open and close the opening of the double bonding container 200, is made of a plastic injection molding is provided with a concave packing groove 110 along the edge. The packing groove 110 has a ring-shaped silicon packing 120 is disposed. Therefore, when the lid 100 is covered in the double hermetic container 200, the silicone packing 120 is compressed to seal the opening of the double hermetic container 200, which will be described in detail in the description. In addition, the edge of the lid 100 is configured by the locking handle 130 that can be folded up and down by the user holding the hand.

In the first embodiment of the present invention, since the double junction container is configured in a square, the lid 100 covering the lid 100 is also illustrated in the form of a square plate, and the locking handles 130 are symmetrically in the front, rear, left, and right directions along four sides of the lid 100. It is composed. That is, in the embodiment of the present invention, the locking handles 130 are configured along the edge of the lid 100 to be locked to the upper end of the double junction container 200, integrally molded with the same material on the lid 100 It is provided to be able to swing up and down along the boundary portion with the lid (100). As such, the boundary portion of the locking knob 130 functions as a snap-hinge because the lid 100 and the locking knob 130 are integrally injection molded through a synthetic resin having a predetermined elastic force. . In addition, the locking handle 130 is provided with a locking jaw 131 in the horizontal direction, which is to be coupled to the second curling portion 332 of the inner container 300 to be described later while being elastically deformed.

As described above, the double bonding container 200 according to the first embodiment of the present invention includes an inner container 300 manufactured by processing a stainless steel sheet, and the inner container 300 is inserted into an injection mold. After the arrangement is defined as the outer container 400 is molded and bonded through the synthetic resin to surround the outer container 300.

The inner container 300 constituting the double junction container 200 is made of a stainless steel plate, as shown in Figures 4 and 5, a square bottom portion 310 having a round corner, and the bottom portion ( A blanking process for manufacturing four wall portions 320 respectively connected to four sides of the 310, and after the blanking process, the four wall portions 320 are placed upward and along the upper ends of the wall portions 320. It is manufactured through a forming process of bending to the outside to form the metal-border member 330. Four wall portion 320 is formed along a four-sided straight section of the bottom portion 310, if it is placed upward, the inner container 300 is manufactured in the shape of a rectangular cylinder with corners separated. In addition, as shown in FIGS. 6 and 7, the wall portions 320 forming the inner container 300 are easily and reliably embedded in the wall corners of the outer container 400 when the outer container 400 is formed. A buried-fixed part 321 is formed to be bent stepwise outward along the side end so that it can be. In addition, the metal-border member 330 on the top of the wall portion 320 ∩ toward the outside from the upper edge of the inner container 300 wall portion 320 to surround the outer surface of the resin-border portion 410 described later. The first curling portion 331 is bent in the shape of a cross section, and bent to maintain a predetermined distance from the wall surface portion 320 while inclining upward toward the wall surface portion 320 at the end of the first curling portion 331. The second curling unit 332 is defined. The second curling unit 332 is to be configured to more integrally bonded to the outer container 400, and of course, the locking knob 130 of the lid 100 may be selectively caught. In the first embodiment of the present invention, the second curling portion 332 is shown to protrude to have a round cross-section so that the locking jaw 131 portion of the locking handle 130 is coupled while elastically deformed.

In addition, the outer container 400 constituting the double bonding container 200 is manufactured through a synthetic resin injection mold, as shown in FIG. That is, after inserting the stainless steel inner container 300 manufactured by the above process into a synthetic resin injection mold, the outer container 400 is integrally formed by molding through synthetic resin to surround the outside of the inner container 300. . At this time, the upper end of the outer container 400 is made of a synthetic resin is filled in the space between the outer side of the first curling portion 331 and the top of the wall surface 320, while the end of the second curling portion 332 is embedded in a belt shape so as to be fixed. Edge portion (injection; 410) is molded, through which the inner container 300 and the outer container 400 are more firmly integrated together. In particular, the metal-border member 332 fixed through the resin-border portion 410 is a portion that is sealed to the edge of the lid 100, as described above, the locking handle 130 of the lid 100 The second curling portion 332 for locking by hanging) is also firmly fixed through the resin-border portion 410.

In addition, as shown in Figure 10, the side edges of the wall surface portion 320 of the inner container 300 is fixed to the wall corner portion of the outer container 400 formed through the synthetic resin. In the first embodiment of the present invention, the buried-fixing part 321 formed at the side ends of the inner container 300 wall portions 320 is easily buried and fixed to the outer corner of the outer container 400 wall, so that the inner container 300 Of course, the wall portion 320 of the outer container 400 is solidly integrated with the outer surface of the container 400, the corner portion of the outer surface without forming a step.

As described above, when the outer container 400 is injection molded to surround the outside of the inner container 200, the end of the second curling part 332 of the metal-rim member 330 is embedded in the resin-rim part 410. At the same time, the side ends of the inner container 300 wall surfaces 320 are buried in the outer corner of the outer container 400 wall. And when the outer container 400 is taken out from the outer container injection mold, the heterogeneous inner container 300 and the outer container 400 are solidly bonded together.

And the outer container 400 is preferably molded through the opaque resin raw material so that the wall portion 310 and the bottom portion 320 of the inner container 300 is not visible from the outside. In addition, according to the above structure, the inner container 300 constituting the double junction container 200 for food storage can be produced through a stainless steel sheet having a thickness of about 0.3 ~ 0.5mm, greatly reducing the mold cost by simplifying the work process Can be saved. In addition, the inner container 300 is made of a stainless steel sheet using a blanking / forming process without the need for a deep drawing process complex, it is possible to easily produce a deep and large square container.

<Description of the use of the double junction container according to the first embodiment of the present invention>

Next, a state of use of the lid equipped with the locking knob in the double junction container according to the first embodiment of the present invention configured as described above will be described with reference to FIGS. 11 and 12.

First, put the food to be stored in the double junction container 200 and covers the lid 100 in its opening. That is, as shown in Figure 11, so that the resin-border portion 410 and the metal-border member 330 on the top of the double bonding container 200 is inserted into the packing groove 110, the silicon packing 120 is inserted Cover the lid (100).

As shown in FIG. 12, when the lock knob 130 is pushed down in this state, the lock knob 130 pivots downward from a boundary portion (snap hinge portion) with the lid 100 and is formed on the inside thereof. The jaw 131 is fixed to the inside of the second curling portion 332 of the inner container 300. At this time, since the second curling portion 332 is bent upwardly inclined toward the wall surface 320, the locking jaw 131 of the locking handle 130 is not released unless the artificial force is applied.

On the other hand, when holding the lock handle 130 and lift it upwards, the locking jaw 131 portion of the lock handle 130 is elastically deformed and exits from the second curling portion 322. Therefore, the lock state of the locking knob 130 is released, thereby easily opening the lid 100.

Meanwhile, in the first embodiment of the present invention, the case where the buried-fixing part 321 is stepped on the side ends of the wall portions 320 of the inner container 300 has been described as an example, but is not limited thereto. As described above, even if the wall end portion 320 side end of the inner container 300 made of a flat surface to be directly fixed to the wall corner portion of the outer container 400 can be achieved the desired purpose of the present invention, of course to be.

100. Lid 110. Packing groove 120. Silicone packing
130 .. Locking handle 131. Locking jaw 200. Dual bonding container
300. Inner container 310. Bottom part 320. Wall part
321. Landfill-fixed 330. Metal-rim member 331. First curling section
332. Second curling section 400. Outer container 410. Resin-borders

Claims (3)

delete In the food storage double junction container made of a rectangular cylindrical shape of the top is opened to be covered through the lid (100);
The double junction container 200;
It is manufactured through a stainless steel sheet, the corner portion having a square bottom portion 310 having a round-shaped corner, and four wall surface portion 320 is formed upright along the four-sided straight section of the bottom portion 310 Is manufactured in a separated rectangular tubular shape, and the buried-fixing part 321 bent stepwise to the outside is formed along the side ends of the wall portions 320, and the outer portion is formed along the upper ends of the wall portions 320. An inner container 300 provided with a metal-border member 330 that is bent;
After inserting the inner container 300 into a synthetic resin injection mold, the inner container 300 is formed through a synthetic resin to cover the outside of the inner container 300, and a wall corner portion of the inner container 300 wall surfaces 320 The landfill-fixing part 321 is fixed to the landfill, and the upper end of the metal-border part 330 of the inner container 300 is landfilled and the resin-rim part to which the lid 100 is seated and coupled ( 410 including an outer container 400 is provided;
The double container for food storage, characterized in that the inner container 300 made of a stainless steel plate is bonded and integrally formed during the injection molding of the outer container (400). The method of claim 2,
The metal-border member 330 is bent in a U-shaped cross section from the upper edge of the inner surface of the wall 300 to the outer surface of the inner container 300 so as to surround the outer surface of the resin-border portion 410. 331 and at an end of the first curling portion 331 to be inclined upward toward the wall portion 320 of the inner container 300 to maintain a constant distance from the wall portion 320 of the inner container 300. The second curling portion 332 is bent;
The resin-border portion 410 of the outer container 400 has a synthetic resin in a space between the outer side of the wall portion 320 of the first curling portion 331 of the metal-border member 330 and the inner container 300. Filling is made of a double junction container for food storage, characterized in that for fixing the buried end of the second curling portion (332).

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