Locking structure of sealed container

Abstract

The present invention relates to a locking mechanism structure for a sealed container capable of storing food, and more specifically, to a locking mechanism structure for a sealed container in which the main body and the lid are made of stainless steel and the main body and the lid are combined to be locked. To this end, the present invention comprises a locking mechanism structure for a sealed container, comprising a stainless steel container body having a storage space formed inside, and a stainless steel container lid that opens and closes the upper part of the container body, wherein the locking mechanism comprises: a bracket having a cross-section in the shape of an 'ㄱ' that is spot-welded to the upper and side portions of both sides of the container lid and has a first hinge portion integrally formed on the lower outer portion by curling; and a locking wing that is integrally formed on the upper portion by curling, is connected to the first hinge portion by a hinge pin, and rotates when the container lid is opened or closed.

Description

Technology Field

[0001] The present invention relates to a locking mechanism structure for a sealed container capable of storing food, and more specifically, to a locking mechanism structure for a sealed container in which the main body and the lid are made of stainless steel and the main body and the lid are combined to be locked. Background Technology

[0003] Generally, airtight containers feature a locking mechanism that allows the body and lid to be locked to maintain airtightness for food storage, and many airtight containers made of stainless steel are sold to ensure heat transfer and hygienic storage when kept in a refrigerator.

[0004] As an example of such a sealed container, in registered patent No. 10-2500261 (stainless steel sealed container and method of manufacturing the same), as shown in FIGS. 1 and 2, the container comprises a container body (200) made of stainless steel and having a storage space formed inside, and a container lid (100) that opens and closes the top of the container body (200).

[0005] The above container lid (100) comprises a rim portion (115) provided along the lower edge, first and second rivet joint portions (111, 112) formed extending from one side and the other side of the rim portion in the longitudinal direction of the container lid (100), and locking wings (130, 140) that are respectively coupled to the first and second rivet joint portions (111, 112) and rotate when the container lid (100) is opened or closed;

[0006] One end of each of the first and second rivet joints (111, 112) is formed by bending upward and curving inward to form a rivet joint hole (112e) to which the rivet part (141) is joined, and the rivet joint hole (140e) formed in the locking wing (130, 140) and the rivet joint hole (112e) of the rivet joints (111, 112) are arranged to be on the same line and have a structure joined through the rivet part (141) and the rivet head (143).

[0008] However, according to this conventional technology, the container lid (100) has a structure in which a rivet joint hole (112e) is integrally formed by curling, but if a defect occurs in the curling operation to form the rivet joint hole (112e) during the manufacture of the container lid (100), the entire container lid (100) becomes defective and must be disposed of.

[0009] As a result, it has the disadvantage of significantly reducing productivity and greatly increasing manufacturing costs.

[0010] Additionally, the container lid (100) is formed by integrally forming the first and second rivet joints (111, 112), which are in the form of plates by a press process, through a shape-cutting process, and then forming the rivet joint holes (112e) by curling the first and second rivet joints (111, 112). However, when the first and second rivet joints (111, 112) and the container lid (100) are integrally shaped from stainless steel plates, there is a disadvantage that the parts on both sides of the first and second rivet joints (111, 112) are unnecessarily lost.

[0011] That is, as shown in FIG. 3, when the container lid (100) is shaped simultaneously with the first and second rivet joints (111, 112) by a press process from a stainless steel plate, there is a problem in that a portion of the stainless steel plate is lost. The problem to be solved

[0013] The purpose of this invention is to provide a locking mechanism for a sealed container that can significantly reduce the defect rate of the container lid and minimize the loss of stainless steel sheet material during the shape-cutting press process by having a structure that allows the locking mechanism to be separately joined to the container lid by welding, thereby solving the problems of the prior art. means of solving the problem

[0015] To this end, the locking part structure of the sealed container according to the present invention is,

[0016] A locking mechanism for a sealed container comprising a stainless steel container body having an internal storage space and a stainless steel container lid that opens and closes the top of the container body,

[0017] The above locking part

[0018] A bracket having a cross-section in the shape of an 'ㄱ', spot-welded to the upper and side portions of both sides of the container lid, and having a first hinge portion integrally formed on the lower outer portion by curling;

[0019] It is characterized by being composed of a locking wing that rotates when the container lid is opened or closed, and which is respectively connected to the first hinge part by a hinge pin and formed integrally by a second hinge part by a curling on the upper part.

[0021] In addition, the container lid is characterized by having seating grooves formed on both sides that correspond to the length and shape of the bracket so that the bracket can be seated thereon. Effects of the invention

[0023] According to the present invention, by separately manufacturing a bracket of a locking part integrally equipped with a hinge part and then joining it to the container lid by spot welding, the defect rate of the container lid is significantly reduced, thereby increasing productivity, and also, by minimizing the loss of stainless steel plate material, the effect of reducing manufacturing costs is achieved. Brief explanation of the drawing

[0025] FIGS. 1 and FIGS. 2 are drawings showing the structure of a sealed container according to the prior art. Figure 3 is a figure illustrating the loss of stainless steel plate material when manufacturing a container lid by conventional technology. FIG. 4 is an exploded view of the present invention. FIG. 6 is a figure showing the combined state of the present invention. FIG. 6 is a side view of a sealed container to which the present invention is applied. Specific details for implementing the invention

[0026] The aforementioned objectives, features, and advantages will be described in detail below with reference to the attached drawings, and accordingly, a person skilled in the art to which the present invention pertains will be able to easily implement the technical concept of the present invention.

[0027] In describing the present invention, detailed descriptions of known technologies related to the present invention are omitted if it is determined that such descriptions could unnecessarily obscure the essence of the present invention.

[0029] Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings.

[0030] However, the embodiments of the present invention exemplified below may be modified in various other forms, and the scope of the present invention is not limited to the embodiments described below.

[0031] The embodiments of the present invention are provided to more completely explain the present invention to those skilled in the art.

[0033] As shown in FIG. 4, the structure of the container body (400) of the present invention is similar to or general to the prior art, so a detailed description of the structure is omitted.

[0034] Referring to FIGS. 4 to 6, the container lid (400) is formed by a stainless steel plate in the shape of the container lid through a pressing process, as in the prior art.

[0035] At this time, since the first and second rivet joints (111, 112) are not integrally formed on the container lid (100) as in the conventional technology, the loss of stainless steel plate material can be minimized.

[0036] The locking part (500) according to the present invention is manufactured separately from the container lid (400), and the locking part (500) is composed of a bracket (510) and a locking wing (530).

[0037] The above bracket (510) is in the form of a long plate and has a cross-section bent into a '┓' shape to contact the upper and side portions of the opposing sides of the container lid (100), and a first hinge portion (520) is integrally formed at the lower portion of the vertically bent portion, which is curled outward. That is, the bracket (510) is formed by bending the plate into a '┓' shape to have a horizontal portion and a vertical portion, and the lower portion is curled outward to form the first hinge portion (520).

[0038] At this time, a seating groove (410) is formed on both sides of the container lid (400), that is, on the part where the bracket (510) is to be attached, to accurately guide the attachment position of the locking part (500) and to facilitate the attachment process, and a spot protrusion (411) is formed on the part where the locking part (500) is to be spot welded in the seating groove (410).

[0039] That is, the above-mentioned seating groove (410) is formed identically to the length and shape of the horizontal and vertical portions of the bracket (510) at the upper and side portions of both sides of the container lid (400), and its depth is formed to be equal to or shallower than the thickness of the bracket (510), so that the bracket (510) is inserted and seated in the seating groove (410) in a tight fit, and then the bracket (510) is joined to the container lid (400) by spot welding.

[0040] The locking wing (530) has a second hinge part (540, 550) formed integrally on each side of the upper portion by a curling, and the first hinge part (520) of the bracket (510) is positioned between the pair of second hinge parts (540, 550) and hinge-coupled by a hinge pin (560, 570), thereby enabling rotation in the up and down direction.

[0041] Additionally, the locking wing (530) is formed with a curved surface having an 'S' shape cross-section so that it is caught on the upper circumference of the container body (300) to enable locking.

[0043] As specific parts of the present invention have been described in detail above, it will be apparent to those skilled in the art that such specific descriptions are merely preferred embodiments and do not limit the scope of the present invention.

[0044] Accordingly, the substantial scope of the present invention will be defined by the appended claims and their equivalents. Explanation of the symbols

[0046] 300 : Container body 400 : Container lid 410 : Seating groove 411 : Spot protrusion 500 : Locking part 510 : Bracket 520 : 1st hinge part 530 : Locking Wing 540,550 : 2nd hinge part 560,570 : Hinge pin

Claims

Claim 1 A locking mechanism structure for a sealed container comprising a stainless steel container body having an internal storage space and a stainless steel container lid that opens and closes the top of the container body, wherein the locking mechanism is formed by bending a long plate to have a cross-section in the shape of '┓' to form horizontal and vertical portions, and the horizontal and vertical portions are spot-welded to the upper and side portions of opposing sides of the container lid, respectively, and the lower portion of the vertical portion is curled outward to form a first hinge portion integrally formed on each of the pairs of brackets; and a pair of locking wings that rotate when the container lid is opened or closed, wherein a second hinge portion is integrally formed on the upper portion by curling, and are respectively connected to the first hinge portion by a hinge pin, and wherein a seating groove of the same shape is formed on the upper and side portions of the sides of the container lid to correspond to the length and shape of the horizontal and vertical portions of the brackets, and the depth thereof is formed to be the same as the thickness of the brackets. A locking part structure of a sealed container characterized by having a spot protrusion formed in the seating groove portion at the area to be spot welded to the locking part. Claim 2 delete

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